RU2829711C2 - Washing unit - Google Patents

Abstract

FIELD: washing machines.

SUBSTANCE: description of washing units and methods of their operation is given. Washing unit design includes a laundry container and a desiccant, the design of which includes a circulating fan directing humid air coming from the container to the desiccant and a removal device for absorbing moisture from the humid air, regenerative fan directing air for removal of moisture absorbed by the desiccant and to the removal device, as well as to the condenser for condensation of water from the incoming air, the moisture absorption and removal device is placed next to the circulation fan, the regeneration fan and the condenser.

EFFECT: increased moisture-absorbing capacity, reduced drying time and reduced power consumption.

19 cl, 59 dwg

Description

SCOPE OF TECHNICAL APPLICATION

[0001] The present invention relates generally to household electrical appliances, in particular to washing units (washing machine, drying machine, washer-dryer systems (e.g. built-in, combined or complex washer-dryers) and methods for operating them.

LINK TO RELATED APPLICATIONS

[0002] This application is international application PCT/IB2022/058200, advanced to the national phase and filed on September 1, 2022, entitled "Drying system and washing units comprising the system", which claims priority from patent application No. CN202111023112.5 (China), filed on September 1, 2021, patent application No. CN202111450553.3 (China), filed on November 30, 2021, and PCT international application No. PCT/CN2022/116242, filed on August 31, 2022, all of which are incorporated herein by reference in their entirety.

PRELIMINARY INFORMATION

[0003] As the standard of living increases, the lifestyle is constantly changing. People are no longer satisfied with the basic functions of consumer household appliances.

[0004] For example, in the washing machine sector, a fully automatic combined washer-dryer allows clothes to be dried after washing. This function is especially needed in the wet weather season. Accordingly, more consumers prefer fully automatic combined washer-dryers. In the drying system of combined washer-dryers available on the market, an evaporator is used to heat and absorb moisture from the humid air in the inner drum of the combined washer-dryer. The resulting heated air enters the inner drum of the combined washer-dryer, causing moisture in the clothes to evaporate. However, the overall temperature of the evaporator is maintained at one level. In the process of heating and absorbing moisture from the humid air, the moisture absorption capacity of the evaporator in the humid air decreases, resulting in low moisture absorption capacity, long drying time and high energy consumption. In particular, under low temperature conditions, the temperature of the humid air also decreases. As a result, it becomes difficult to achieve a temperature in the evaporator at which moisture absorption occurs, which in turn leads to a decrease in moisture absorption capacity, an increase in drying time and increased energy consumption.

[0005] Another example: different family members have different requirements for washing and drying different items to be washed, and accordingly, a double-loading (double-loading, parallel loading) washing machine becomes more convenient. For example, the upper washing zone in a parallel-loading washing machine can be used for washing and drying items made of separate types of fabric, such as children's clothes or women's underwear, etc., to ensure a more gentle washing process. At the same time, the lower washing zone can be used mainly for washing and drying general items, such as casual clothes for adults. However, in parallel-loading washing machines on the market, independent washing and drying systems are used in the upper and lower washing zones. As a result, the height of the washing machine becomes excessive, the machine is large-sized, inconvenient to use, and excessively expensive to operate.

ESSENCE OF THE INVENTION

[0006] A washing machine in the embodiments described in this document is presented. The washing machine comprises a laundry container and a dehumidifier comprising a circulation fan intended to direct a flow of humid air coming from the container to a device for removing and absorbing moisture from humid air, intended to absorb moisture contained in the humid air, a regeneration fan intended to create an air flow for the outlet of moisture absorbed by the removal device and for flowing to a condenser intended to condense water from the incoming air flow, wherein the device for absorbing and removing moisture is located near the circulation fan, the regeneration fan and the condenser, wherein the device for absorbing and removing moisture comprises a roller unit in which at least on its lower part or side there is a working roller.

[0007] In some embodiments, the circulation fan and the condenser are located near the regeneration fan on different sides of it.

[0008] In some embodiments, the moisture absorption and removal device is located in the same plane with at least one circulation fan, a regeneration fan, and a condenser.

[0009] In some embodiments, the circulation fan, the moisture absorption and removal device, the regeneration fan and the condenser are located in the same plane.

[00010] In some embodiments, two or more axes of rotation of the circulation fan, roller assembly, and regeneration fan in the dehumidifier are parallel.

[00011] In some embodiments, the working roller comprises a block of auxiliary rollers located on the side of the roller assembly, wherein the block of auxiliary rollers is located in separate sockets in the lower casing intended for accommodating one or more parts of the moisture absorber, wherein the axis of rotation of the block of auxiliary rollers is located parallel to the axis of rotation of the roller of the roller assembly.

[00012] In some embodiments, the working roller additionally comprises a block of vertical rollers located on the lower part of the roller assembly, wherein the block of vertical rollers is located in a lower casing designed to accommodate one or more parts of the moisture absorber, and the axes of rotation of the block of vertical rollers are located vertically relative to the axis of rotation of the roller of the roller assembly.

[00013] In some embodiments, one or more axes of rotation of the circulation fan, roller assembly and regeneration fan in the desiccant are located perpendicular to the axis of rotation of the container.

[00014] In some embodiments, one or more axes of the fusion of the circulation fan, roller assembly and regeneration fan in the desiccant are parallel to the axis of rotation of the container.

[00015] In some embodiments, the washing unit comprises a lower casing in which a block of zones with two or more circulation fans, a moisture absorption and removal device, a regeneration fan and a condenser are located.

[00016] In some embodiments, the lower casing is a single integral part.

[00017] In some embodiments, the moisture absorption and removal device comprises a moisture absorption zone and a moisture removal zone. In some embodiments, the moisture absorption zone comprises at least a first portion of the moisture absorption and removal device for absorbing moisture from humid air coming from the circulation fan. In some embodiments, the moisture removal zone comprises a heating section located above the second portion of the moisture absorption and removal device adjacent to the regeneration fan.

[00018] In some embodiments, the desiccant comprises a desiccant passage in which a moisture absorption zone is located and which is designed to direct air from a circulation fan directing air from the container into the moisture absorption zone.

[00019] In some embodiments, the desiccant comprises a desiccant passage that contains a moisture absorption zone and is designed to direct air from the regeneration fan into the condenser to remove moisture from the air.

[00020] In some embodiments, the heating section comprises a block of heating elements located near the air holes in the mesh plate.

[00021] In some embodiments, the heating section has a fan-shaped device, and the diameter of the air holes decreases along the radius toward the center of the fan-shaped device.

[00022] In some embodiments, the heating element unit is located near the air holes and is offset along the radius towards the center of the fan-shaped device.

[00023] In some embodiments, the washing unit comprises an air outlet passage combined with an air outlet opening in the container; a filter assembly with a filter mesh is located in the air outlet passage; a filter self-cleaning device is provided for cleaning the filter mesh.

[00024] In some embodiments, the desiccant comprises a spiral casing designed to cover and secure the circulation fan to the lower casing, which contains one or more parts of the desiccant.

[00025] In addition, a washing and drying machine is proposed, comprising an inner drum, a drying module, a circulation fan and a regeneration fan. In the machine, the circulation fan is located in the moisture-absorbing passage and provides air supply to the inner drum and the moisture-absorbing passage. The regeneration fan is located in the regeneration passage and provides air supply for drying in the regeneration passage. The moisture-absorbing component is located in the moisture-absorbing passage and the regeneration passage and provides supply of circulating air and air for drying to the moisture-absorbing component. The moisture-absorbing component is designed to absorb moisture from the air passing through the moisture-absorbing passage during rotation of the moisture-absorbing component and to remove moisture by means of an air flow through the regeneration passage.

[00026] In some embodiments, the combined washer-dryer machine comprises a water inlet pipe and a water outlet pipe, respectively connected to the inner drum.

[00027] In some embodiments, the combined washer-dryer machine comprises a drive connected to the internal drum and providing rotation thereof.

[00028] In some embodiments, the combined washer-dryer machine includes a filtration unit located in the moisture-absorbing passage. The filtration unit is located in front of the moisture-absorbing component.

[00029] In some embodiments, the filtration unit is located in the regeneration passage.

[00030] In some embodiments, the heating element is located in the moisture absorption passage.

[00031] In some embodiments, the moisture-absorbing component comprises a rotating moisture-absorbing disk and a heating unit.

[00032] In some embodiments, the heating unit covers the regeneration zone of the rotating absorption disk, and the moisture absorption zone of the rotating absorption disk is located in the moisture absorption passage. The regeneration zone is a section of the rotating absorption disk through which an air flow passes, removing moisture, and the moisture absorption zone is a rotating absorption disk through which a flow of circulating air passes.

[00033] In some embodiments, the heating unit comprises a cover. The cover covers the regeneration zone of the rotating absorption disk, i.e. the area covered by the cover corresponds to the size of the regeneration zone; the cover has an opening connected to the regeneration passage, and the regeneration heating part is located on the casing.

[00034] In some embodiments, the rotating absorption disk comprises an absorption roller and a rotating part connected thereto, wherein said roller is covered on the outside with a shell and can rotate relative to it under the action of the rotating part. The shell, in turn, is connected to a moisture-absorbing passage and a regeneration passage.

[00035] In some embodiments, the condenser element is located in the regeneration passage and is designed to cool the drying air flow in the regeneration passage to dry this air flow.

[00036] In some embodiments, a combined washer-dryer machine comprises a controller, a temperature sensor installed in the moisture-absorbing passage, and a controller electrically connected to the temperature sensor and a heating element. The controller is used to turn on or off the heating element depending on the temperature registered by the temperature sensor.

[00037] In some embodiments, a humidity sensor is provided in the inner drum to determine the humidity in the inner drum.

[00038] In some embodiments, the number of humidity sensors is two or more. Temperature sensors are located in different places of the inner drum.

[00039] In some embodiments, the combined washer-dryer comprises a housing, an inner drum, and a drive part located in the housing. The regeneration passage is at least partially located between the inner drum and the housing. The second air outlet and the second air intake are located on the side surface of the housing. The second air outlet is connected to the air outlet of the regeneration passage, and the second air intake is connected to the air intake of the regeneration passage.

[00040] In some embodiments, the combined washer-dryer machine comprises a housing, a moisture-absorbing component located and secured in the housing. In this case, the housing can rotate relative to the moisture-absorbing component.

[00041] In the combined washer-dryer in the embodiments proposed in this document, a moisture-absorbing component is used to absorb moisture from the moist air entering the moisture-absorbing passage from the inner drum. After removing moisture from the air, it enters the inner drum, which ensures a gradual decrease in humidity in the inner drum and achieves the purpose of the drying process. Accordingly, in the combined washer-dryer, it is not necessary to use an evaporator for heating and drying the moist air in the inner drum. In addition, the use of a drying element does not depend on the temperature, which expands the operating temperature range of the combined washer-dryer and ensures efficient drying. Compared with a washer-dryer with a heat pump, the combined washer-dryer proposed in this document has smaller dimensions, is more economical and consumes less energy.

[00042] In addition, a washing unit is proposed, which comprises a housing with blocks of containers for laundry. Each block of containers comprises an air inlet and an air outlet. The drying device ensures selective drying of laundry in a separate container from the block of containers. The drying device comprises an air intake connected to the air outlet of a separate container and an air outlet connected to the air inlet of a separate container.

[00043] In some embodiments, the washing unit also comprises a filter assembly consisting of a filter installed in the air outlet passage of a separate container or the air intake of a drying device, and a self-cleaning device for cleaning the filter.

[00044] In some embodiments, the drying device has separate hydraulic connections through a switch to individual containers of the unit.

[00045] In some embodiments, the drying device comprises a moisture-absorbing passage, a moisture-discharge passage, and a moisture-absorbing and moisture-removing element that comprises a moisture-absorbing zone connected to the moisture-absorbing passage. The moisture-discharge passage comprises an air inlet of the drying device located on the side of the air inlet of the moisture-absorbing zone of the moisture-absorbing and moisture-removing element, and the air outlet of the drying device is located on the side of the air outlet of the moisture-absorbing zone of the moisture-absorbing and moisture-removing element. The moisture-discharge passage comprises an air inlet located on the side of the air inlet of the moisture-absorbing zone of the moisture-absorbing and moisture-removing element. The air outlet section is located on the side of the air outlet of the moisture-absorbing zone of the moisture-absorbing and moisture-removing element. The air intake section of the moisture-absorbing passage is selectively connected to a separate container, and the air outlet section of the moisture-absorbing passage is connected to the air intake passage of the separate container. Alternatively, a rotating moisture-absorbing and moisture-removing element is provided in the moisture-absorbing and moisture-removing passage.

[00046] In some embodiments, the washing unit also comprises a high-speed switching device and a second switching device. In this case, the air intake passage of the separate container is connected to the air outlet section of the moisture-absorbing passage through the first switch, and the air outlet passage of the separate container is connected to the air intake section of the moisture-absorbing passage through the second switch.

[00047] In some embodiments, the filter and the filter self-cleaning device are located in the air intake section of the drying device between the second switch and the moisture-absorbing and moisture-removing element.

[00048] In some embodiments, the second switch is located between the air intake section of the drying device and the air outlet passage of the container. Alternatively, the washing unit may contain more than one second switch in the air outlet passage of the container.

[00049] In some embodiments, the washing unit also contains more than one set of filters and self-cleaning devices for the filters, located in the air outlet passage of the container and located before or after the second switch.

[00050] In some embodiments, the filter self-cleaning device comprises a sprayer for spraying liquid onto the filter. Alternatively, the filter self-cleaning device may comprise a vibrator for vibrating the filter. Alternatively, the filter self-cleaning device may comprise an air blower for blowing out the filter. Alternatively, the filter self-cleaning device may comprise a scraper for scraping debris off the filter.

[00051] In some embodiments, the direction of the liquid flow from the sprayer is opposite to the direction of the air flow passing through the filter. Alternatively, the filter and the filter self-cleaning device are located in the air intake section of the drying device between the switch and the moisture-absorbing and moisture-removing element. The filter self-cleaning device comprises a sprayer, wherein the flow of the sprayed liquid should not be directed at the moisture-absorbing and moisture-removing element.

[00052] In some embodiments, the spray nozzle is located above the filter axis. Alternatively, the spray nozzle may be located on the air outlet side of the filter.

[00053] In some embodiments, the washing unit also comprises a fan and a heater located in the moisture-removing passage. The heater is located near the moisture-removing zone of the moisture-absorbing and moisture-removing element.

[00054] In some embodiments, the washing unit also comprises a heat exchanger located in the moisture-dissipating passage. The heat exchanger is located on the air outlet side of the moisture-dissipating zone. The heat exchanger comprises a ventilation passage connected to the moisture-dissipating zone and a water outlet pipe for draining condensate. In this case, the heat exchanger comprises a refrigeration passage through which the coolant passes, and the outlet of the ventilation duct is connected to the air intake of the fan. Alternatively, the heat exchanger comprises a refrigeration passage through which the coolant passes, and the outlet of the ventilation passage of the heat exchanger exits to the outside of the washing unit. Alternatively, the fan comprises an air intake passage passing through the inside of the heat exchanger.

[00055] In some embodiments, the washing unit also comprises a heat exchanger in the air outlet passage of a separate container or in the air intake section of the drying device for drying and reducing the temperature of the air flow leaving the separate container. In this case, the moisture-removing passage is located in front of the moisture-removing zone and passes through the interior of the heat exchanger, which ensures heat exchange between the hot moist air in the air outlet passage of the container or in the air intake section of the drying device with dry and cold air in the moisture-removing passage located in front of the moisture-removing zone.

[00056] In some embodiments, the container unit comprises upper and lower tanks located one on top of the other. In this case, the drying device is located between the upper and lower tanks, above the upper tank or under the lower tank.

[00057] In some embodiments, the upper and lower tanks are located inside the washing unit. Alternatively, the upper tank may be located in the drying compartment, and the lower tank inside the washing compartment, or the upper tank may be located in the washing compartment, and the lower tank in the drying compartment.

[00058] In addition, a method for operating a washing unit is provided, which comprises a block of containers for laundry, a drying device and a filter in a housing located between the drying device and the block of containers. The filter assembly consists of a filter and a filter self-cleaning device. The method provides for a drying stage for removing moisture from one separate container connected to the drying device. In this case, the air coming out of the separate container enters the drying device through the filter assembly. Then, the filter is cleaned by the filter self-cleaning device.

[00059] In some embodiments, the filter self-cleaning device cleans the filter by spraying liquid, blowing, vibrating, or mechanical cleaning.

[00060] It should be understood that both the foregoing general description and the following detailed description are exemplary and explanatory in nature and do not create limitations on the claimed invention. Other features of the present invention become apparent from a study of the specifications, applications, and the accompanying drawings.

BRIEF DESCRIPTION OF DRAWINGS

[00061] FIG. 1 is a perspective view of a typical combined washer-dryer in some embodiments provided herein.

[00062] FIG. 2 is a partial cross-sectional view of a typical combined washer-dryer of FIG. 1 in some embodiments provided herein.

[00063] FIG. 3 is an enlarged view of a portion of the typical combined washer-dryer machine of FIG. 2 in some embodiments provided in this document.

[00064] FIG. 4 is an exploded view of a portion of the typical combined washer-dryer of FIG. 3 in the embodiments presented in this document.

[00065] FIG. 5 is a perspective view of the drying unit of a typical combined washer-dryer machine in some embodiments provided in this document.

[00066] FIG. 6 is a perspective view of a temperature sensor, a desiccant passage, and a regeneration passage in some embodiments provided herein.

[00067] FIG. 7 shows a schematic diagram of the washing unit in the design variants presented in this document.

[00068] FIG. 8 shows a diagram of the moisture-discharging passage of the washing unit in some embodiments provided in this document.

[00069] FIG. 9 shows a diagram of the moisture-discharging passage of the washing unit in some embodiments provided in this document.

[00070] FIG. 10 shows a basic diagram of the moisture-removing passage of the washing unit in some embodiments provided in this document.

[00071] FIG. 11 shows a top view of the desiccant in some embodiments.

[00072] FIG. 12 is a perspective view of a desiccant component assembly in some embodiments.

[00073] FIG. 13 shows a rear view of a washing unit with a desiccant in some embodiments.

[00074] FIG. 14 is a perspective view of a desiccant unit integrated with a washing unit in some embodiments.

[00075] FIG. 15A is a top view of a dehumidifier circulation fan in some embodiments.

[00076] FIG. 15B shows a bottom view of a dehumidifier circulation fan in some embodiments.

[00077] FIG. 15C is an exploded view of various components of a dehumidifier circulation fan in some embodiments.

[00078] FIG. 16 shows a lower casing with a block of desiccant components with a circulation section in some embodiments.

[00079] FIG. 17 shows a schematic view of the lower casing of the desiccant in some embodiments.

[00080] FIG. 18A is a schematic view of the roller assembly, circulation fan, and air circulation connectors of the desiccant in some embodiments.

[00081] FIG. 18B is a schematic view of the air circulation between the roller assembly, the circulation fan, and the connectors in some embodiments.

[00082] FIG. 18C is a schematic view of the sealed connections between the connector and the roller area with a gasket in some embodiments.

[00083] FIG. 19A shows an exploded view of the roller assembly in some embodiments.

[00084] FIG. 19B is a perspective view of a roller assembly coupled to a motor driven gear in some embodiments.

[00085] FIG. 19C is a perspective view of a roller assembly connected to an auxiliary roller assembly in some embodiments.

[00086] FIG. 19D is a top view of a roller assembly connected to a block of auxiliary rollers located in the lower casing in some embodiments.

[00087] FIG. 19E is a top view of a roller assembly located in the lower casing in some embodiments.

[00088] FIG. 20A shows a schematic view of the air regeneration system in some embodiments.

[00089] FIG. 20B is a side view of an air regeneration system in some embodiments.

[00090] FIG. 21A shows an exploded view of the lower casing of the desiccant in some embodiments.

[00091] FIG. 21B shows an exploded view of the roller area in the lower casing in some embodiments.

[00092] FIG. 22 shows an exploded view of a system consisting of a heating section and a desiccant regeneration section in some embodiments.

[00093] FIG. 23A is an exploded view of a system comprising a roller assembly sandwiched between an upper roller housing and a lower desiccant housing in some embodiments.

[00094] FIG. 23B is an exploded view of a system comprising an upper roller housing and a lower roller housing in some embodiments.

[00095] FIG. 24A is a perspective view of a desiccant with a heating section in some embodiments.

[00096] FIG. 24B is a perspective view of a heating section in some embodiments.

[00097] FIG. 24C is a perspective view of a mesh plate of a heating section in some embodiments.

[00098] FIG. 24D is a top view of a mesh plate integrated with a block of heating elements in a heating section in some embodiments.

[00099] FIG. 25 is an exploded view of a condensation section that contains a condenser for installation in the lower casing in some embodiments.

[000100] FIG. 26 is a perspective view of a desiccant unit that includes a condensation section in some embodiments.

[000101] FIG. 27A shows the arrangement of the condensate pipeline for the condenser in some embodiments.

[000102] FIG. 27B shows the arrangement of the condensate pipeline for the condenser in some embodiments.

[000103] FIG. 28 is a schematic view of several components located within the washing unit in some embodiments.

[000104] FIG. 29A is a perspective view of an air outlet pipe with a mesh filter connected to the drum of a washing machine, in some embodiments.

[000105] FIG. 29B is a perspective view of an air outlet pipe with a mesh filter connected to the drum of a washing machine, in some embodiments.

[000106] FIG. 29C is a perspective view of an air outlet pipe with a mesh filter connected to the drum of a washing machine, in some embodiments.

[000107] FIG. 30A is a perspective view of an air outlet pipe with a mesh filter connected to the drum of a washing machine, in some embodiments.

[000108] FIG. 30B is a perspective view of an air outlet pipe with a mesh filter connected to the drum of a washing machine, in some embodiments.

[000109] FIG. 31A is a perspective view of a portion of a connector in some embodiments.

[000110] FIG. 31B is a perspective view of a portion of a connector in some embodiments.

[000111] FIG. 31C shows a connector connecting the condensation section to the regeneration zone for servicing the regeneration section in some embodiments.

[000112] FIG. 32A is a perspective view of a portion of a connector in some embodiments.

[000113] FIG. 32B is a perspective view of a portion of a connector in some embodiments.

[000114] FIG. 32C is a perspective view of a portion of a connector in some embodiments.

[000115] FIG. 32D is a perspective view of a portion of a connector in some embodiments.

[000116] FIG. 32E is a perspective view of a connector in some embodiments.

[000117] FIG. 33 is a schematic view of several components located within the washing unit in some embodiments.

[000118] FIG. 34 is a schematic view of several components located within the washing unit in some embodiments.

[000119] FIG. 35 shows a rear view of the washing unit in some embodiments.

DETAILED DESCRIPTION

[000120] The accompanying drawings are described in detail below. Wherever possible, reference numerals refer to the same or similar parts. While some exemplary embodiments are described herein, modifications, adaptations, and other implementations are also possible. For example, components shown in the drawings may be replaced, added, or modified. Accordingly, the following description is not limited to the embodiments and exemplary embodiments included herein. The proper boundaries of the range of embodiments of the invention are defined by the appended applications.

[000121] In order to provide a more thorough understanding of this document, the following description presents various embodiments in a specific order. However, it will be apparent to one skilled in the art that this document may be used without one or more specific embodiments.

[000122] It should be noted that the terms used herein are used only to describe specific embodiments and are not intended to limit the range of examples of embodiments in accordance with this document. When a word is used in the singular, the plural is also implied unless the context clearly requires otherwise. In addition, the reader is advised that expressions such as "consists of" and/or "consisting of", "which comprises", as used in the text of this document, indicate the presence of the described features, components, steps, operations, elements and/or components, but do not mean a prohibition on the presence or addition of one or more features, components, steps, operations, elements and/or components, or any combinations thereof.

[000123] FIG. 1 is a perspective view of a combined washer-dryer 100 (e.g., a built-in or integrated washer-dryer) in some embodiments provided herein. FIG. 2 is a partial cross-sectional view of a typical combined washer-dryer 100 of FIG. 1 in some embodiments provided herein. As shown in FIGS. 1-2, in some embodiments, a combined washer-dryer 100 described herein includes a water inlet (not shown), a water outlet (not shown), an inner drum 30, a drive component (not shown), and a drying module 20. In some embodiments, the drive component is coupled to the inner drum 30 to provide power to the inner drum 30 to rotate it. In some embodiments, the water inlet pipe and the water outlet pipe are connected to the inner drum 30 (directly or through other parts). In some embodiments, the drying module 20 comprises a moisture absorption passage 201, a regeneration passage 202 and a moisture absorption element 206. In some embodiments, the moisture absorption passage 201 comprises a first air inlet pipe 2011 and a first air outlet pipe 2012. In some embodiments, the first air inlet pipe 2011 and the first air outlet pipe 2012 are connected to the inner drum 30 (directly or through other parts). In some embodiments, a circulation fan 203 is installed in the moisture absorption passage 201, providing air circulation in the inner drum 30 and the moisture absorption passage 201. In some embodiments, a regeneration fan 205 is installed in the regeneration passage 202, providing an air flow in the regeneration passage 202 for removing moisture. In some embodiments, a moisture absorption element 206 is located in the moisture absorption passage 201, so that the circulating air flow passes through the moisture absorption element 206. In some embodiments, the moisture absorption element 206 is designed to absorb moisture from the air flow circulating through the moisture absorption passage 201 during rotation and to remove the absorbed moisture using a flow for removing moisture through the regeneration passage 202.

[000124] In some embodiments, the washer-dryer 100 may also include at least a housing 10, a controller (not shown), etc. The inner drum 30 and the drive component are located in the housing 10. In some embodiments, the inner drum 30 is provided with a receiving compartment for laundry items, such as clothing, on the inner surface of the housing 10 for placing laundry items in the inner drum 30 and removing them from it. In the housing 10, in a place corresponding to the opening 301, a door 101 is provided, fixed on hinges. The door 101 is opened and closed manually by the user or by the electronic control unit.

[000125] In some embodiments, a display (not shown) is mounted on the side or top of the housing 10 to display information about the operation of the combined washer-dryer machine 100. Such a display may comprise at least a liquid crystal display, light-emitting diodes, etc. In some embodiments, one or more push or touch buttons are also provided on the housing 10. In some embodiments, one or more buttons are used to enter commands for controlling the operation of the combined washer-dryer machine 100. The operation of the corresponding component is then controlled by a controller. The controller may be implemented, among other things, in the form of an application-specific integrated circuit (ASIC), a digital signal processor (DSP) unit, digital signal processing devices (DSPD), programmable logic devices (PLD), field-programmable logic integrated circuits (FPGA), microcontrollers, microprocessors, or other electronic components.

[000126] Before starting washing, the user first places the laundry items into the combined washer-dryer 100 through the opening 301, pours liquid detergent into the detergent tray and closes the door 101. Water enters the inner drum 30 through the water inlet pipe connected to the water source. The volume of water is controlled by the controller according to the command entered by the user. The user enters the washing and drying instruction using one or more buttons. The controller controls the operation of the driving component rotating the inner drum 30 according to the washing instruction. During washing, water can be drained through the drain pipe and the drain hose. After that, the controller continuously controls the operation of the driving component constantly rotating the inner drum 30 according to the washing and drying instruction to remove the water remaining in the laundry items by the action of centrifugal force. The separated water is drained through the water outlet pipe, which makes it possible to shorten the subsequent drying time.

[000127] After drying the laundry items according to the commands input by the users, the controller starts the circulation fan 203 and the regeneration fan and controls the rotation of the desiccant element 206. As shown in Fig. 2, the circulation fan 203 creates a flow of circulating air passing through the inner drum and the moisture-absorbing passage 201. In some embodiments, when the circulation fan 203 rotates, a pressure difference arises between the sides of the circulation fan 203, creating a flow that carries moist air from the inner drum 30 to the moisture-absorbing passage 201 through the air inlet pipe 2011 of the moisture-absorbing passage 201. Then, from the moisture-absorbing passage, air enters the inner drum 30 through the first air outlet pipe 2012 of the moisture-absorbing passage 201. Thus, a flow of air is created, circulating between the inner drum 30 and the moisture-absorbing passage 201. Entrained by the flow of circulating air, the moist air from the inner drum 30 enters the moisture-absorbing passage 201 through the first air inlet pipe 2011, where the moisture absorption by the moisture-absorbing element 206 occurs. The dried air coming out of the moisture-absorbing passage is constantly supplied to the inner drum 30 through the first air outlet pipe 2012 of the moisture-absorbing passage 201. Thus, the moisture remaining in the laundry items in the inner drum 30 is removed by drying the flow of moist air, which ensures the drying of the laundry items.

[000128] At the same time, the regeneration fan 206 creates a flow for removing moisture through the regeneration passage 202. Outside the inner drum 30 there is an air inlet pipe 2022 and an air outlet pipe 2021 (e.g., see FIG. 5) of the regeneration passage 202. Thus, when the regeneration fan 205 rotates, a pressure difference is created on both sides of the regeneration fan 205, creating an air flow that ensures the flow of air from outside the inner drum 30 into the regeneration passage 202 through the air inlet pipe 2022 and then onto the moisture-absorbing element 206, and the removal of moisture into the environment outside the inner drum 30 through the air outlet pipe 2021. This makes it possible to remove moisture from the moisture-absorbing element 206 and constantly maintain its moisture-absorbing capacity at a high level.

[000129] During drying, the moisture-absorbing member 206 is constantly rotated. When the moisture-absorbing part of the moisture-absorbing member 206 in the moisture-absorbing passage 201, which absorbs moist air, turns toward the moisture-absorbing passage 202, moisture from this part of the moisture-absorbing member 206 is removed by the regeneration air flow. After the moisture concentration in this part of the moisture-absorbing member 206 decreases, this part can absorb additional moisture when turning toward the moisture-absorbing passage 201. In this way, it is possible to avoid a decrease in the decrease in the moisture-absorbing capacity of the moisture-absorbing member 206 due to saturation.

[000130] In the combined washer-dryer described in this document, moisture is removed from the moist air entering the moisture absorption passage from the inner drum 30 by the moisture absorption element 206, and then the dried air after removing the moisture is directed into the inner drum 30, which makes it possible to reduce the moisture content in the inner drum 30 due to constant circulation and to achieve the drying purpose. According to the description of the combined washer-dryer 100 given in this document, its device does not require the presence of an evaporator for heating and drying the moist air in the inner drum 30. The moisture absorption efficiency of the moisture absorption element 206 depends little on the temperature. The moisture absorption element 206 is heated to prevent the reverse release of moisture. This makes it possible to avoid low drying efficiency at low temperatures, typical of traditional condensation systems or dehumidification using heat pumps and to expand the range of application conditions of the proposed solution.

[000131] In some embodiments shown in FIGS. 2, 3 and 4, the moisture absorption passage 201 also comprises a filter 204 located on the side of the moisture absorption element 206 near the air inlet pipe 2011, for example, in front of the moisture absorption element 206, for filtering the air flow before entering the moisture absorption element 206. In some embodiments, the regeneration passage 202 is also provided with a filter.

[000132] In some embodiments, filter 204 may be mesh, or may have another design that ensures the retention of debris; in this embodiment, there are no restrictions.

[000133] In some embodiments, the filter 204 is located on the side of the moisture-absorbing element 206 near the air inlet pipe 2011 and provides for the filtration of moist air entering the moisture-absorbing passage 201 and preventing debris from getting onto the moisture-absorbing element 206, ensuring that the efficiency of the moisture-absorbing element 206 is maintained at a high level. At the same time, the filter prevents fabric fibers from washing items from getting onto the moisture-absorbing element 206, ensuring its protection from damage due to possible combustion of fibers when the moisture-absorbing element 206 is heated during the removal of moisture from it.

[000134] In some embodiments, a filter that retains fabric fibers, such as a mesh, may be positioned in front of the regeneration fan 205, providing protection for the regeneration fan 205 from damage by external contaminants, as well as from atmospheric pollution from the air flow discharged into the external environment.

[000135] In some embodiments, a heating element is installed in the moisture absorption passage 201.

[000136] In some embodiments, during the heat exchange process in the inner drum 30, the temperature of the incoming air can rise, which accelerates the evaporation of moisture from the surface of the laundry items and reduces the drying time. In some embodiments, a heating element is installed in the moisture absorption passage 201, located before or after the moisture absorption element 206, which increases the efficiency of absorbing moisture from the heated moist air or heats the dried air after absorbing moisture. Such heated dried air then enters the inner drum 30 through the air outlet pipe 2012. Since the air temperature rises after heating by the heating element, it also contributes to an increase in the temperature in the inner drum, accelerating the evaporation of moisture from the laundry items, thereby further increasing the efficiency and improving the drying result.

[000137] In some embodiments, the heating element and the moisture-absorbing element 206 participate together in the drying process, which allows maintaining the temperature of the heating element at a moderate level, which allows reducing energy consumption and ensuring rational use of resources. In some embodiments, the heating element can be a wire heated by electricity, a heating element with a positive temperature coefficient (PTC heater) or a similar heating device. In some embodiments, the PTC heater consists of a ceramic heating element and an aluminum tube. In some embodiments, the PTC heater has the advantage of low thermal resistance and high heat exchange efficiency, automatic operation, constant temperature and economy.

[000138] In some embodiments, such as in FIG. 4, the desiccant element 206 comprises a desiccant roller 2062 and a heater 2061. In some embodiments, the heater 2061 covers a regeneration zone of the desiccant roller assembly 2062. In some embodiments, the desiccant zone of the desiccant roller assembly 2062 is located in the desiccant passage 201. In some embodiments, the regeneration zone is a portion of the desiccant roller assembly 2062 through which an air flow passes to remove moisture, and the desiccant zone is a portion of the desiccant roller assembly 2062 through which a circulating air flow passes.

[000139] In some embodiments, the regeneration and moisture-absorbing parts can be determined by the areas of the radial cross-sections of the moisture-absorbing and regeneration pipelines. In some embodiments, the area of the radial cross-section of the moisture-absorbing pipeline is greater than that of the regeneration pipeline. The area of the regeneration zone is less than the area of the moisture-absorbing zone, which makes it possible to increase the air flow rate in the moisture-absorbing pipeline. The greater part of the moisture-absorbing roller assembly 2062 is located in the moisture-absorbing zone, which also makes it possible to increase the efficiency of moisture absorption.

[000140] When the moisture-absorbing roller assembly 2062 rotates, each part thereof passes through the moisture-absorbing passage 201 to the regeneration passage 202, and then through the regeneration passage 202 to the moisture-absorbing passage 201. In some embodiments, each part of the moisture-absorbing roller assembly 2062 rotates from the moisture-absorbing zone to the regeneration zone and from the regeneration zone to the moisture-absorbing zone. In this case, the part of the moisture-absorbing roller assembly 2062 located in the moisture-absorbing zone absorbs moisture from the moist air in the moisture-absorbing passage 201, and then rotates into the regeneration zone and is heated by the heater 2061 to quickly remove moisture. Then, the moisture is removed by the air flow to remove moisture to the air outlet pipe 2021 of the regeneration passage 202 and is drawn out. In fact, when the moisture-absorbing roller unit 2062 passes through the moisture-absorbing passage 201, moisture from the humid air is continuously absorbed by the moisture-absorbing roller unit 2062 and can be continuously discharged after absorption, which ensures a constantly high moisture-absorbing capacity of the rotating moisture-absorbing roller unit 2062.

[000141] In some embodiments, such as in FIG. 4, the heating element 2061 comprises a cover 20611. In some embodiments, the cover 20611 is located above the regeneration zone of the desiccant roller assembly 2062, completely or partially covering it. In some embodiments, in a portion of the cover 20611 corresponding to the regeneration zone (i.e. located above the regeneration zone, connected to it or otherwise interacting with the regeneration zone), there is an opening (e.g., opening 20613 in FIG. 3) connected to the regeneration passage 202. In some embodiments, the cover 20611 comprises a regeneration heating portion 20612.

[000142] In some embodiments, the cover 20611 covers the regeneration zone of the moisture-absorbing roller assembly 2062 and on the side surface of the moisture-absorbing roller assembly 2062, remote from the first air inlet pipe 2011, which allows the flow of air for removing moisture and a portion of the moisture-absorbing roller assembly 2062 to pass unimpeded through the regeneration zone. In some embodiments, the contact area of the air flow for removing moisture in the regeneration zone with the moisture-absorbing roller assembly 2062 is maximum, which allows a greater amount of moisture to be entrained and removed. In some embodiments, the cover 20611 is used to separate the moisture absorption zone from the regeneration zone of the moisture absorption roller assembly 2062 and to ensure that the size of the heating section for regeneration 20612 is constant. In some embodiments, the cover 20611 and the heater 2061 do not rotate when the moisture absorption roller assembly 2062 rotates. In some embodiments, the moisture absorption roller assembly 2062 rotates relative to the cover 20611 and the heater 2061, so that in the heating section for regeneration 20612, the portion of the moisture absorption roller assembly 2062 passing through the heating section for regeneration 20612 is heated. In some embodiments, the heating section for regeneration 20612 is located as close as possible to the moisture absorption roller assembly 2062 to ensure the best heating and moisture removal in the regeneration zone of the moisture absorption roller assembly 2062.

[000143] In some embodiments, the air flow created by the regeneration fan 205 enters the regeneration passage 202 from the outside, alternately passes through the heating section for regeneration 20612 and the regeneration zone of the moisture-absorbing roller assembly 2062, and then is discharged to the outside through the air outlet pipe of the regeneration passage 202. In some embodiments, the heating section for regeneration 20612 is located before the regeneration zone, and the heated air flow gives off heat in the regeneration zone, ensuring the removal of moisture. In some embodiments, the heating section for regeneration 20612 can be located after the regeneration zone. In some embodiments, the heating section for regeneration 20612 can be located between two regeneration zones.

[000144] In some embodiments, to prevent damage to the regeneration fan 205 by debris from outside and to prevent contamination of the atmosphere by the outgoing air flow, a mesh filter may be installed in front of the regeneration fan 205. In some embodiments, a filter, such as a HEPA filter, may be installed in the regeneration passage 202 after the moisture-absorbing roller 20622.

[000145] In some embodiments, a wire heater or a PTC heater may be used in the heating section for regeneration 20612.

[000146] In some embodiments, such as in FIG. 4, the desiccant roller 2062 comprises a desiccant roller 20622 and a rotary mechanism for rotating the desiccant roller assembly 20622. In some embodiments, the desiccant roller 20622 is covered by a casing 207 and rotates relative to it under the action of a drive of the rotary mechanism. In some embodiments, the casing 207 is connected to the desiccant and regeneration pipeline. In some embodiments, the casing 207 has a connecting hole for connecting to the desiccant pipeline and a connecting hole for connecting to the regeneration pipeline. In some embodiments, the internal space of the casing 207 is divided into a part connected to the moisture-absorbing passage 201 through a connecting hole for connection to the moisture-absorbing pipeline and a part connected to the regeneration passage 202 through a connecting hole for connection to the regeneration pipeline.

[000147] In some embodiments, the desiccant roller 20622 has the form of a disk of a certain thickness to reduce the volume of space occupied by the desiccant roller 20622 and, accordingly, to reduce the overall volume of space occupied by the rotating desiccant roller assembly 2062. In some embodiments, the desiccant roller 20622 is made of a highly absorbent material, such as fabric or fiber. In some embodiments, the rotary mechanism comprises a shaft 20621 and a motor connected to the shaft 20621. The shaft 20621 is inserted into the center of the moisture-absorbing roller 20622, accordingly, when the shaft 20621 is rotated by the motor, the shaft 20621 rotates the moisture-absorbing roller 20622. In some embodiments, the moisture-absorbing roller 20622, the shaft 20621 and the motor can be located in the casing 207. The cover 20611 is rigidly connected to the casing 207, so that when the moisture-absorbing roller 20622 rotates, the cover 20611 does not rotate. In some embodiments, the casing 207 is connected to the moisture-absorbing passage 201 and the regeneration passage 202 to ensure unimpeded air passage through them.

[000148] In some embodiments, the washer-dryer 100 comprises a casing 207 to which a moisture-absorbing element 206 is located. The moisture-absorbing element 206 is stationary, and the casing 207 rotates around it. For example, the moisture-absorbing roller 20622 can be fixed, and the casing 207 can rotate around the moisture-absorbing roller 20622 on the shaft 20621. In some embodiments, the casing 207 can have inlet and outlet openings in the center of the corresponding sides, connected to the moisture-absorbing passage 201 and the regeneration passage 202, respectively. In some embodiments, the heating section for regeneration 20612 can rotate around the moisture-absorbing roller 20622, and the heating section for regeneration 20612 can rotate synchronously or asynchronously with the casing 207 (there is no limitation), if during rotation the heating section for regeneration 20612 divides the moisture-absorbing roller 20622 into a moisture-absorbing and a regeneration zone. In some embodiments, the casing 207 can be connected through corresponding openings with the moisture-absorbing passage 201 and the regeneration passage 202, offset from the center. This can be ensured by using the corresponding technologies and embodiments provided in this document, without any limitations.

[000149] In other embodiments, such as shown in FIG. 5, the regeneration passage 202 is provided with a condenser 40. In some embodiments, the condenser 40 is used to dehumidify the air flow in the regeneration passage 202. In some embodiments without a condenser, the moist air flow is removed from the regeneration zone through the regeneration passage. If the combined washer-dryer is installed in a bathroom or laundry room, this may lead to an increase in the humidity in the room and the formation of an uncomfortable hot and humid atmosphere. However, in the case of excessively dry air, an increase in its humidity may lead to an increase in comfort. Thus, the condenser 40 may be a good choice for such rooms.

[000150] In some embodiments, the condenser 40 may be an already installed condensing device. In some embodiments, the air inlet pipe 2022 and the air outlet pipe 2021 of the regeneration passage 202 pass through the condensing device, in which the air entering the regeneration passage 202 from the air inlet pipe 2022 is cooled in the condenser 40, and a portion of the moisture contained therein is condensed. Then, the dried air passes through the regeneration zone of the moisture-absorbing roller assembly 2062 and removes moisture from the moisture-absorbing roller assembly 2062. Then, the air that has absorbed moisture from the moisture-absorbing roller assembly 2062 passes through the condenser 40, where the moisture absorbed by the air is condensed, and drier air is discharged to the outside. Thus, the amount of moisture removed together with this air is reduced. In some embodiments, condensed moisture is removed from the condenser 40 through the drain pipe 401. In some embodiments, the drain pipe 401 and the drain pipe for draining water from the inner drum 30 are combined into one to simplify the design and operation.

[000151] In some embodiments, as shown, for example, in FIG. 6, the washer-dryer 100 may also include a controller, a humidity sensor 50, located in the moisture absorption passage 201. In some embodiments, the controller is electrically connected to the humidity sensor 50 and the heating element. The controller can be used to control the operation of the heating element depending on the humidity level detected by the humidity sensor 50. The controller can also control the operation of other parts of the moisture absorber: a circulation fan 203, a regeneration fan 205, a roller roller assembly 2062 for regulating humidity.

[000152] In some embodiments, the humidity sensor 50 is used to determine the humidity level of the air in the dehumidification passage 201. The controller can compare the humidity level determined by the humidity sensor 50 with the threshold humidity level setpoint and control the operation of one or more parts of the dehumidifier to maintain the set humidity level. In some embodiments, the temperature sensor is used to determine the air temperature in the dehumidification passage 201. Then, the controller compares the temperature value obtained by the temperature sensor with the temperature setpoint. If the temperature determined by the sensor is equal to the setpoint or higher, the controller turns off the heater. If the temperature determined by the sensor is lower than the setpoint, the controller includes a heater. In this way, a relatively stable temperature of the circulating air flow is maintained, which makes it possible to protect the laundry items in the inner drum 30 from damage by the flow of excessively hot air.

[000153] In some embodiments, a humidity sensor is also installed in the inner drum 30.

[000154] In some embodiments, the humidity sensor may display a measured value of the humidity level in the inner drum 30 on the display on the housing 10 to inform the user of the conditions in the inner drum 30. The user may also change the drying time depending on the humidity level.

[000155] In some embodiments, the combined washer-dryer may comprise two or more humidity sensors 50 and one or more temperature sensors located at different points of the drum 30.

[000156] In some embodiments, the number of humidity sensors is increased in order to determine the humidity level at various points in the inner drum 30 for a more complete representation of the conditions in the inner drum and to eliminate the influence of possible measurement errors at one location using one humidity sensor. The number of humidity sensors can be determined by the dimensions of the inner drum 30 and is not strictly limited by embodiments.

[000157] In some embodiments, as shown, for example, in FIG. 1, the washer-dryer 100 includes a housing, an inner drum 30 and a drive, located inside the housing 10. In some embodiments, the regeneration passage 202 can extend in some part between the inner drum 30 and the housing 10. In the side part of the housing 10 there is a second air outlet pipe 102 and a second air inlet pipe 103. The second air outlet pipe 102 is connected to the air outlet pipe 2021 of the regeneration passage 202, and the second air inlet pipe 103 is connected to the air inlet pipe 2022 of the regeneration passage 202 (e.g., as shown in FIGS. 1 and 5). In some embodiments, the side of the housing 10 with the second air outlet pipe 102 and the second air inlet pipe 103 faces the user during operation of the combined washer-dryer machine 100, so that the second air outlet pipe 102 and the second air inlet pipe 103 are located on this side to simplify the placement of the combined washer-dryer machine.

[000158] In some embodiments, the side of the housing 10 with the second air outlet pipe 102 and the second air inlet pipe 103 is the side with the door 101. Accordingly, during the drying of laundry items in the combined washer-dryer machine, the second air outlet pipe 102 and the second air inlet pipe 10y will not be blocked from the outside (e.g., by a wall) and the possibility of air entering and being removed from the regeneration passage 202 will be ensured.

[000159] In some embodiments, by arranging the regeneration passage 202 between the inner drum 30 and the housing 10, the space between the inner drum 30 and the housing 10 is fully utilized, which makes it possible to make the combined washer-dryer machine more compact.

[000160] FIG. 7 is a schematic diagram of a washing unit 700 in some embodiments presented in this document. In some embodiments, the washing unit provides the ability to wash and/or dry laundry items. In some embodiments, the washing unit 700 includes at least two containers 730 (a container may also be called, for example, a "vat", "inner vat", "inner drum", "rotary drum") for placing laundry items during washing and/or drying, a moisture absorbing device 750 and a filter 770. In some embodiments, washing and drying or only drying can be performed in one container 730. In some embodiments, the washing unit 700 is a combined washer-dryer with washing and drying functions. In some embodiments, the washing unit 700 is a dryer with a drying function only. In some embodiments, the moisture-absorbing device 750 with the block of containers 730 performs drying of the laundry items in one of the containers 730. In some embodiments, the filter 770 is used to filter the air flow from one or more containers 730 before entering the moisture-absorbing device 750. In some embodiments, the block of containers 730 is served by one moisture-absorbing device 750, which allows to simplify the design and reduce the overall height or width of the washing unit 700 with a simultaneous decrease in the volume and cost of the washing unit 700. In some embodiments, the use of the filter 770 allows to prevent fluff, fabric fibers, dust and other debris from getting inside the moisture-absorbing device 750 or onto its surface and the associated decrease in the efficiency of moisture absorption.

[000161] In some embodiments, each container comprises an air inlet passage 732 and an air outlet passage 734.

[000162] In some embodiments, the desiccant device 750 selectively performs drying of the laundry items in only one container 730 at a time. In some embodiments, the desiccant device 750 comprises an air inlet section 522 connected to an air outlet passage 734 of the container 730 and an air outlet section 524 connected to an air inlet passage 732 of the container 730.

[000163] In some embodiments, the moisture-absorbing device 750 comprises a moisture-absorbing passage 520, a moisture-removing passage 540, and a moisture-absorbing and moisture-removing component 560.

[000164] In some embodiments, a rotating moisture-absorbing and moisture-wicking component 560 is located in the moisture-absorbing passage 520 and the moisture-wicking passage 540. When rotating, the moisture-absorbing and moisture-wicking component 560 absorbs moisture from the circulating air stream entering from the container 730 into the moisture-absorbing passage 520, as well as moisture from the moisture-wicking air stream passing through the moisture-wicking passage 540. In some embodiments, the moisture-absorbing and moisture-wicking component 560 includes a moisture-absorbing zone connected to the moisture-absorbing passage 520 and a moisture-wicking zone (or moisture-wicking zone) connected to the moisture-wicking passage 540. In some embodiments, the moisture-absorbing and moisture-wicking component 560 comprises a disc-shaped structure of a certain thickness. In some embodiments, the moisture-absorbing and moisture-removing component 560 is made of materials with a high absorption capacity (e.g., cotton fabric and/or fibers, etc.). In some embodiments, the moisture-absorbing and moisture-removing component 560 is driven by a drive mechanism (not shown) (drive motor), which ensures rotation of the moisture-removing passage 540 relative to the moisture-absorbing passage 520.

[000165] In some embodiments, the moisture-absorbing passage 520 comprises an air inlet section 522 on the side of the air entering the moisture-absorbing and moisture-removing component 560 (e.g., into the moisture-absorbing zone of the moisture-absorbing and moisture-removing component 560) and an air outlet section 524 on the side of the air exiting the moisture-absorbing and moisture-removing component 560 (e.g., from the moisture-removing zone of the moisture-absorbing and moisture-removing component 560). In some embodiments, the air inlet section 522 of the moisture-absorbing passage 520 is the air inlet section 522 of the moisture-absorbing device 750, and the air outlet section 524 of the moisture-absorbing passage 520 is the air outlet section 524 of the moisture-absorbing device 750. In some embodiments, the air inlet section 522 and the air outlet section 524 are connected to the air outlet passage 734 and the air inlet passage 732 of the container 730, respectively. In some embodiments, when it is necessary to dry laundry items in one of the containers 730, the air inlet section 522 and the air outlet section 524 of the moisture-absorbing passage 520 are connected to the air outlet passage 734 and the air inlet passage 732 of this container, respectively. In some embodiments, the connection with the air outlet passages 734 and the air inlet passages 732 of one or more containers not used for drying is blocked. In some embodiments, a fan 526 is located in the moisture absorption passage 520, creating a flow of circulating air in the container 730 and the moisture absorption passage 520. In some embodiments, a heater is installed in the air outlet section 524 of the moisture absorption passage for increasing the temperature of the flow of drying air entering the container 730 with the laundry items being dried, and accelerating the drying process of the laundry items in this container 730. In some embodiments, a condenser is installed in the air inlet section 522 of the moisture absorption passage 520 for preliminary drying of the air flow entering from this container 730 for drying. In some embodiments, the condenser is located in front of the filter 770 along the direction of the air flow. Accordingly, the humidity of the air flow entering the moisture-absorbing and moisture-removing component 560 can be reduced, and some of the fluff or fabric fibers can be removed with the condensate, which makes it possible to increase the duration of the operating cycle of the filter element 720 of the filter 770. For example, the frequency of cleaning the filter 770 can be reduced. In some embodiments, a heater 542, a heat exchanger 544 and a fan 546 are installed in the moisture-removing passage 540. In some embodiments, the heater 542 is located on the side of the air inlet of the moisture-removing zone, and the heat exchanger 544 is located on the side of the air outlet of the moisture-removing zone. In some embodiments, the fan 546 creates a forced air flow, which is heated when passing through the heater 542. The heated air flow passes through the moisture-removing zone, carrying away moisture from it. In some embodiments, the heater 542 may also be located on the side of the air outlet of the air-discharging zone near the moisture-absorbing and moisture-discharging component 560, providing heating of the moisture-discharging zone of the moisture-absorbing and moisture-discharging component 560 to accelerate the removal of moisture from the moisture-discharging zone. In some embodiments, the heater 542 may not be present, and the air outlet section of the heat exchanger 544 may be used to heat the air flow. In some embodiments, a filter device, such as a mesh filter, may be installed in the air inlet section of the moisture-absorbing passage 540. In some embodiments, the filter device is located in front of the moisture-removing zone and/or the heater 542 and/or the fan 546, providing protection for the moisture-removing zone and/or the heater 542 and/or the fan 546. During operation, the air flow (i.e., the moist air flow) coming from the container 730 for drying passes through the filter 770, and then enters the moisture-absorbing zone. A portion of the moisture-absorbing and moisture-removing component 560, located in the moisture-absorbing zone, absorbs moisture from the air flow, i.e., water vapor, passing through it, accordingly, the humidity of the air flow passing through it decreases, i.e., a dry air flow is formed. The dry air flow comes from the moisture-absorbing zone back into the container 730 through the air inlet section 524 of the moisture-absorbing passage 520 and the air inlet passage 732 of the container 730 to undergo the next cycle, forming a constant air flow until the humidity in the container 730 reaches a predetermined value. In some embodiments, when the moisture-absorbing and moisture-removing component 560 rotates, a portion of the moisture-absorbing and moisture-removing component 560 located in the moisture-absorbing zone and having absorbed moisture enters the moisture-removing zone. Then, the moisture is carried away from the moisture-removing zone by the flow of heated dry air, and the dried portion of the moisture-absorbing and moisture-removing component 560 is again ready to absorb moisture when returning to the moisture-absorbing zone.

[000166] FIG. 8 is a diagram of some embodiments of the moisture dissipation passage of the washing machine 100 of FIG. 7 in some embodiments provided herein. As shown in FIG. 8, in some embodiments, the heat exchanger 544 includes a refrigeration passage 5442 through which a refrigerant (e.g., condensate) passes, a vent passage for a passing air stream, and a condensate outlet 5446. In some embodiments, when a stream of hot and moist air coming from the moisture dissipation zone of the desiccant device 750 passes through the heat exchanger 544, heat is exchanged with the refrigeration passage 5442 and a majority of the moisture is condensed and discharged through the condensate outlet 5446. In some embodiments, the vent passage communicates with the desiccant (or moisture removal) zone and the condensate outlet pipe. The cooled dry air flow is discharged through the air outlet 5448 of the ventilation passage of the heat exchanger 544. In some embodiments, the air outlet 5448 is connected to the air inlet of the fan 546, due to which a circulation loop is formed in the moisture-exhaust passage 540, which makes it possible to reduce the impact on the environment.

[000167] FIG. 9 is a diagram of some embodiments of a moisture-discharge passage of the washing unit 100 of FIG. 7 in some embodiments provided in this document. As shown in FIG. 9, in some embodiments, the air outlet 5448 of the heat exchanger 544 may exit the washing unit 100, providing a direct discharge of the air flow that has passed through the heat exchanger 544 from the washing unit 100.

[000168] FIG. 10 is a diagram of some embodiments of the moisture-discharge passage of the washing machine 100 of FIG. 7 in some embodiments provided herein. As shown in FIG. 10, in some embodiments, the air inlet passage 5462 of the fan 546 passes through the interior of the heat exchanger 544. As the hot and humid air stream from the moisture-discharge zone of the desiccant device 750 passes through the heat exchanger 544, it exchanges heat with the cold air in the air inlet passage 5462 of the fan 546. As a result, moisture is removed from the hot and humid air stream and the temperature of the hot and humid air stream is reduced. Ultimately, the moisture is discharged through the air outlet 5448 of the heat exchanger 544. In some embodiments, the air flow in the air inlet passage 5462 of the fan 546 is preheated as it passes through the heat exchanger 544 so that at least some of the energy is reused, which improves efficiency.

[000169] In some embodiments, the heat exchanger 544 may also be absent and the air flow coming from the air outlet of the moisture-discharging passage 540 is immediately discharged outside the washing unit 100.

[000170] In some embodiments, such as in FIG. 7, the connection of the desiccant device 750 to one of the containers 730 is controlled by switching mechanisms 790, 792, and 794. In some embodiments, the switching mechanisms 790, 792, and 794 comprise valves, electromagnetic valves, etc.

[000171] In some embodiments, the switching mechanisms 790, 792 and 794 control the connection of the desiccant passage 520 of the desiccant device 750 to one of the containers 730. In some embodiments, the switching mechanisms 790, 792 and 794 comprise a first switching mechanism 790 located at the connection between the air outlet section 524 of the desiccant device 750 and the air inlet passage 732 of the container 730. In some embodiments, the switching mechanisms 790, 792 and 794 also comprise second switching mechanisms 792 and 794 located in the air outlet passages 734 of the respective containers 730. In some embodiments, the first switching mechanism 790 and the second switching mechanism 792 can provide a connection between one container 730 and the air inlet section 522 and the air outlet section 524 of the desiccant device 750 and block the connection between the other container(s) 730 and the air inlet section 522 and the air outlet section 524 of the desiccant device 750. In some embodiments, the first switching mechanism 790 and/or the second switching mechanisms 792, 794 can be located at the connection between the air outlet section 524 and/or the air inlet section 522 of the desiccant device 750 and the air inlet passage 732 and/or the air outlet passage 734 of the container 730. In some embodiments, the washing unit 700 comprises several first switching mechanisms 790 and/or second switching mechanisms 792 installed in the air inlet passage 732 and/or the air outlet passage 734 of each container 730 of the container unit. In some embodiments, such as in FIG. 7, the washing unit 700 comprises two second switching mechanisms 792 and 794. In some embodiments, the first switching mechanism 790 and one of the second switching mechanisms 792 and 794 corresponding to one container 730 selectively open the air inlet passage 732 and the air outlet passage 734 of the corresponding container 730.

[000172] The switching mechanisms 790 and the second of 792 and 794 overlap so that the containers 730 are connected to the desiccant device 750, and the connection between the other container(s) 730 and the desiccant device 750 is blocked. In some embodiments, the filter 770 is used to filter the air flow coming from the container 730 before it enters the desiccant device 750, providing protection against lint and fabric fibers from the container 730 from entering the desiccant device 750. For example, the filter 770 is used to prevent lint from the container 730 from entering the desiccant and desiccant component 560 or onto its surface, which can lead to a decrease in the efficiency of the desiccant and desiccant component 560.

[000173] In some embodiments, the filter 770 is used to filter the air flow coming from the container 730 before it enters the desiccant device 750, providing protection against lint and fabric fibers from the container 730 from entering the desiccant device 750. For example, the filter 770 is used to prevent lint from the container 730 from entering the inside of the desiccant and desiccant component 560 or onto its surface, which can lead to a decrease in the efficiency of absorption and removal of moisture in the desiccant and desiccant component 560.

[000174] In some embodiments, the filter 770 is located in the air inlet section 522 of the desiccant device 750, for example, between the second switching mechanism and the desiccant device (i.e., the desiccant and desiccant component 560). In some embodiments, the filter 770 can also be located in the air outlet passage 734 of the container 730, and the second switching mechanism can be located after the filter 770 in the direction of air flow. For example, the filter 770 is located between the second switching mechanism and the container 730, or the second switching mechanism is located between the filter 770 and the desiccant device 750 in the direction of air flow. In some embodiments, the second switching mechanism can be located in front of the filter 770 in the direction of air flow. For example, the second switching mechanism is located between the filter 770 and the container 730 or the filter 770 is located between the second switching mechanism and the dehumidifier 750 in the direction of the air flow. In some embodiments, there is one or more filters 770. In some embodiments, if there is one filter 770, it can be located in the air inlet section 522 of the dehumidifier 750. In some embodiments, if there are several filters 770, they can be located in the air outlet passages 734 of the containers 730.

[000175] In some embodiments, the filter 770 includes a filter 720 and a self-cleaning device 740 for the filter. In some embodiments, the filter 770 includes a removable filter 720 and a mounting bracket. If the filter 720 is removable, the user can clean the filter 720 based on the sensor readings. In some embodiments, the filter 720 can be cleaned after each operation or as needed. In some embodiments, the filter 720 can be disassembled manually and removed, washed, wiped and/or cleaned.

[000176] In some embodiments, the filter 720 comprises at least a mesh filter. In some embodiments, there is no limitation on the mesh filter mesh pitch, and it is selected based on the actual need and requirements of the system. In some embodiments, a single-stage filter may be used; the filter 720 is located in the air outlet passage 734 of the container 730 or in the air inlet section 522 of the desiccant device 750. In some embodiments, a filtration system with two or more stages may also be used. In some embodiments, to improve the quality of filtration, the filter 720 is installed in the air outlet passage 734 of the container 730 and in the air inlet section 522 of the desiccant device 750.

[000177] In some embodiments, a filter self-cleaning device 740 is used to maintain the filter 720 in good condition and to ensure proper filtration quality. In some embodiments, the method of operating the filter self-cleaning device 740 may be liquid spraying, vibration, blowing, mechanical cleaning or sweeping. In some embodiments, the filter self-cleaning device 740 comprises a sprayer for spraying the filter 720, a vibrator for providing vibration of the filter 720 (e.g., a vibration motor for providing vibration of a mesh filter), a blowing mechanism for blowing the filter 720 and/or a scraper for mechanical cleaning of the filter 720. In some embodiments, the blowing mechanism provides a flow of air in the opposite direction, created by the reverse rotation of the fan 526 of the moisture-absorbing passage 520. For example, the direction of the reverse flow through the filter 720 during cleaning is opposite to the direction of the air flow through the filter 720 during drying. In some embodiments, when installing a fan 526 in the air inlet section 522 of the moisture-absorbing passage 520, a better effect is achieved. In some embodiments, the fan that creates a reverse air flow for purging the filter 720 may be different from the fan 526. In some embodiments, the scraper may comprise a manual or electric scraper. For example, when the sensor sends a signal of a certain degree of clogging of the filter 720, the control system starts moving the scraper along the absorbent surface of the filter 720 to remove fabric fibers and other debris. In some embodiments, the controller of the washing machine can control the operation of the self-cleaning device 740, ensuring timely cleaning of the filter 720 in automatic mode.

[000178] An example of a method for spraying a liquid: in some embodiments, the sprayer of the self-cleaning device of the filter 740 comprises a sprayer 742 and a water supply system 744 for supplying water to the sprayer. In some embodiments, the sprayer 742 is directed at the filter 720, and the water supply system 744 is connected to the water inlet circuit (not shown) of the washing machine through a switching device (e.g., a valve, not shown). The operation of the switching device can be controlled by the controller of the washing machine. In some embodiments, the sprayer 742 of the spray mechanism of the self-cleaning device is mounted on the side of the filter 720 near the desiccant device 750 (e.g., on the side farthest from the air inlet of the container 730). The debris, such as fluff, carried out from the container 730, usually accumulates on the side of the filter 720 farthest from the desiccant device 750 (e.g., on the side closer to the air outlet of the container 730). Accordingly, the direction of the liquid (e.g., water) directed by the spray mechanism of the self-cleaning device of the filter 740 to the filter 720 is opposite to the direction of the air flow coming from the container 730 through the filter 720. Thus, the liquid sprayed by the spray mechanism of the self-cleaning device of the filter 740 can easily wash the fluff stuck on the filter 720 into the drain passage of the washing machine 700 together with the water drained from the washing machine. For example, if the filter 720, for example, a mesh filter, is installed in the air inlet passage of the container 730 or in the air inlet section 522 of the desiccant component 520, the spray 742 of the spray mechanism is located on the side of the mesh filter near the desiccant device 750 above the axis of the mesh filter, so that the liquid from the spray 744 covers the mesh filter as much as possible, ensuring its effective cleaning. In some embodiments, the mesh filter can be located horizontally, vertically, at an angle, or partly at an angle and partly vertically, or partly horizontally and partly at an angle. The direction of the spray 742 is selected so as to ensure the maximum possible coverage of the area of the filter 720 during self-cleaning.

[000179] In some embodiments, when using the liquid spray method, the filter 720 and the filter self-cleaning device 740 may be located in the air inlet section 522 of the moisture absorption passage. The liquid flowing down after cleaning flows out of the air inlet section 522 of the moisture-absorbing passage 520 through the air outlet passage 734 of one of the containers 730 connected to the air inlet section 522, flows to the drain passage of the connected container 730 and then into the drain from the washing unit 700. For example, with a vertical arrangement of containers 730 during cleaning or after its completion, the container 730 in the lower part is connected to the air inlet section 522 of the moisture-absorbing passage 520, and the connection between the container 730 in the upper part of the air inlet section 522 of the moisture-absorbing passage 520 is blocked by the second switching mechanisms 792 and 794. For example, when it is necessary to dry the laundry items in the upper container 730 shown in FIG. 7, the controller may command the first switching mechanism 790 to open the connection between the air outlet section 524 of the desiccant device 750 and the air inlet passage 732 of the upper container and to close the connection between the air outlet section 524 of the desiccant device 750 and the air inlet passage 732 of the lower container 730. At the same time, the controller may also command the second switching mechanism 792 in the air outlet passage 734 of the upper container 730 to open the connection between the air inlet section 522 of the desiccant device 750 and the air outlet passage 734 of the upper container 730. Further, the controller may command the second switching mechanism 794 in the air outlet passage 734 of the lower container 730 to close the connection with the air inlet section 522 of the desiccant device 750 and air outlet passage 734 of the lower container 730. Another example: when it is necessary to dry laundry items in the lower container 730 shown in FIG. 7, the controller may command the first switching mechanism 790 to open the connection between the air outlet section 524 of the desiccant device 750 and the air inlet passage 732 of the lower container and to close the connection between the air outlet section 524 of the desiccant device 750 and the air inlet passage 732 of the upper container 730. At the same time, the controller may command the second switching mechanism 794 in the air outlet passage 734 of the lower container 30 to open the connection between the air inlet section 522 of the desiccant device 750 and the air outlet passage 734 of the lower container 730. Then, the controller may command the second switching mechanism 792 in the air outlet passage 734 of the upper container 730 to close the connection with the air inlet section 522 of the desiccant device 750 and air outlet passage 734 of the upper container 730. When it is necessary to clean the filter 720 after drying, the controller commands the second switching mechanism 792 in the air outlet passage 734 of the upper container 730 to close the connection with the air inlet section 522 of the desiccant device 750 and the air outlet passage 734 of the upper container 730. The controller then commands the second switching mechanism 794 in the air outlet passage 734 of the lower container 30 to open the connection between the air inlet section 522 of the desiccant device 750 and the air outlet passage 734 of the lower container 730. After cleaning, the liquid flows through the air outlet passage 734 of the lower container 730 and can then be drained through the drain passage of the lower container 730. The connection between the air outlet passage 734 of the lower container 730 and the drain passage of the lower container 730 is opened and closed by means of a valve.

[000180] In some embodiments, during drying in the upper container 730, the second switching mechanism 792 opens the connection between the air outlet passage 734 of the upper container 730 and the air inlet section 522 of the desiccant device 750 and closes the connection between the air outlet passage 734 of the lower container 730 and the air inlet section 522 of the desiccant device 750. During spraying of liquid onto the filter 720 for cleaning, the controller instructs the second switching mechanism 794 to open the connection briefly to drain water flowing from the filter into the lower container or into the drain passage. During drying in the lower container 730, the second switching mechanism 792 closes the connection between the air outlet passage 734 of the upper container 730 and the air inlet section 522 of the moisture-absorbing device 750, and the second switching mechanism 794 maintains open the connection between the air outlet passage 734 of the lower container 730 and the air inlet section 522 of the moisture-absorbing device 750, so that the air flow from the lower container 730 can pass through the filter 720 and then into the moisture-absorbing device 750, and the liquid flowing from the filter 720 enters the lower container 730 or into the drain passage, moving in a direction opposite to the direction of the air flow.

[000181] In some embodiments, when using the liquid spray method, the filter 720 and the self-cleaning device of the filter 740 can also be located in the air outlet passage 734 of the container 730. For example, the filter 720 and the self-cleaning device of the filter 740 can be located in the air outlet passage 734 of each container 730. After cleaning, the liquid flows through the air outlet passage 734 of the corresponding container 730 and then the passage of this container 730 can be drained.

[000182] In some embodiments, the flow of water from the self-cleaning device of the filter 740 may pass into the tank or drain line of one of the containers 730 through a separate pipeline, for example, the tank line or drain line of the lowest container 730. In this case, a second switching mechanism may be installed at the connection between the air outlet passage 734 of the upper container 730 and the air outlet passage 734 of the lower container 730 for opening and closing the connection between the air outlet passage 734 of the upper and lower containers 730 and the air inlet section 522 of the desiccant device 750.

[000183] In some embodiments, the frequency of cleaning can be set. For example, cleaning the filter 720 after each drying of laundry items. Also, the filter 720 can be cleaned after several drying operations. Other parameters can also be set for each cleaning operation: a spray time and a flow rate of sprayed water. For each drying operation, the spray time and the flow rate of sprayed water can be fixed or adjustable. For example, if the filter 720 is cleaned after each drying, the spray time can be relatively short and the flow rate of sprayed water can be relatively low. If the filter 720 is cleaned after several drying operations, the spray time can be relatively long and the flow rate of sprayed water can be relatively high. A sensor can be mounted on the filter 720; When this sensor detects a filter clogging, for example, by a decrease in air pressure in the pipeline to a certain threshold value indicating serious clogging of the filter 720, the washing machine controller can increase the spray time and/or the flow rate of sprayed water from the spray mechanism, increasing the cleaning efficiency.

[000184] In some embodiments, the container 730 for laundry items may be a container for washing clothes or a container for drying clothes. In some embodiments, it is possible to arrange at least two containers 730 for laundry items one on top of the other (vertically) or next to each other (horizontally). In some embodiments, the washing unit shown in FIG. 7 may be a washing machine consisting of an upper washing tank and a lower washing tank located one on top of the other. In some embodiments, the washing unit 700 shown in FIG. 7 may also be a combined washer-dryer. The upper container for laundry items may be an internal container of a dryer, and the lower container for laundry items may be an internal container of a washing machine, or the lower container for laundry items may be an internal container of a dryer, and the upper container for laundry items may be an internal container of a washing machine. The washing unit 700 may also be a drying machine, the upper clothes receptacle may be an inner receptacle of an upper drying machine and the lower clothes receptacle may be an inner receptacle of a lower drying machine.

[000185] For some embodiments presented in this document, a method for operating the washing unit is also provided. The method includes the steps described below.

[000186] In the drying stage, the desiccant device 750 is connected to one of the containers 730 and ensures drying of the laundry items located with it. The air flow from the connected container 730 enters the desiccant device 750, having previously passed through the filter 770.

[000187] In the cleaning step, the filter self-cleaning device 740 cleans the filter 720.

[000188] In some embodiments, the drying step also includes maintaining the temperature of the air flow entering the container 730 from the desiccant device 750 at a level below the set point. In some embodiments, a temperature sensor may be installed near the air inlet of the container 730. If this sensor determines that the temperature of the air flow entering the air inlet of the container 730 is higher than the set point, for example, 75 °C, the controller reduces the temperature of the heater 542, thereby reducing the temperature of the air flow entering the desiccant zone in order to reduce the temperature of the desiccant and desiccant component 560 and the temperature of the air flow entering from the desiccant zone into the container 730.

[000189] In some embodiments, the self-cleaning device for the filter 740 may clean the filter 720 by spraying water, blowing, providing vibration, scraping, etc.

[000190] In some embodiments, the washing unit 700 in the embodiments presented herein has at least the features and advantages described below.

[000191] Several containers with a common desiccant device 750, which simplifies the washing unit 700, reduces its overall height or width, thereby reducing the occupied volume and cost of the device. The use of filters does not allow contaminants, such as fluff, to penetrate into the desiccant device 750 or coat it on the outside, which can reduce the efficiency of its operation. In some embodiments, the filter 770 contains a self-cleaning device 740 for the filter, which provides automatic cleaning of the filter 720 and maintains its efficiency throughout its service life, thereby providing protection and extending the service life of the desiccant device 750

[000192] FIG. 11 is a top view of a desiccant 1100 in some embodiments. In some embodiments, the desiccant 1100 can be used with all types of laundry units (e.g., the laundry unit 100 or the laundry unit 1300 shown in FIG. 13), such as combined washer-dryers, dryers, washing machines, etc., to dry laundry items. In some embodiments, the dehumidifier 1100 comprises a circulation section 1110, a regeneration section 1120, a condensation section 1130, a roller section 1140, a drive motor 1144, a rotating roller in the roller section 1140, and a heating section 1150. In some embodiments, the heating section 1130 comprises a water inlet pipe 1132 and a water outlet pipe 1134 for circulating water. In some embodiments, the dehumidifier 1100 can be combined with one or more mounting elements 1190, such as mounting brackets, for installing and securing the dehumidifier 1100 on the washing unit, such as in the embodiment shown in FIG. 14. In this document, the dehumidifier 1100 can also be called a "drying module".

[000193] FIG. 12 is a perspective view of the desiccant component assembly 1100 shown in FIG. 11, in some embodiments. In some embodiments, the circulation section 1110 includes a circulation fan 1210 for circulating air between the inner drum of the washing unit and the roller section 1140 for removing moisture from the moist air coming from the inner drum. In some embodiments, the circulation fan 1210 performs a function similar to the function of the circulation fan 203 in the combined washer-dryer 100. In some embodiments, the regeneration section 1120 includes a regeneration fan 1220 that creates an air flow for removing moisture. In some embodiments, the regeneration fan 1220 performs a function similar to the regeneration fan 205 in the combined washer-dryer 100. In some embodiments, the condensing section 1130 includes a condenser 1230. In some embodiments, the condenser 1230 performs a function similar to the condenser 40 in the combined washer-dryer 100. In some embodiments, the roller section 1140 may be divided into a moisture absorption zone 1240 (e.g., a moisture absorption zone connected to or located in the moisture absorption passage) and a moisture removal zone 1250 (i.e., a regeneration zone corresponding to the heating section 1150 of FIG. 11, connected to or located in the regeneration passage) corresponding to the heating section 1150. In some embodiments, a portion of the roller assembly 1900 (and a corresponding portion of the roller 1914 (FIG. 19A)) is connected to or located in the moisture-absorbing passage, i.e. in the moisture-absorbing zone 1240, and is designed to absorb moisture from the humid air from the wet laundry items in the drum 1302. The other part of the roller assembly (and the corresponding part of the roller 1914) is connected to or located in the regeneration passage, i.e. in the moisture removal zone 1250, and is designed to remove absorbed moisture from the roller 1914 to "regenerate" this portion of the roller assembly 1900 or roller 1914 for subsequent absorption of moisture when this portion rotates toward the moisture absorption zone 1240. As the roller assembly 1900 rotates, the portion of the roller 1914 previously located in the moisture absorption zone 1240 and having absorbed moisture moves into the moisture removal zone 1250, where the absorbed moisture is removed in the regeneration passage by the air flow to remove moisture, and the portion of the roller 1914 previously located in the moisture removal zone 1250 after removing moisture moves into the moisture absorption zone 1240 to absorb moisture from the moist air coming from the drum 1302. In some embodiments, the roller assembly 1900 (FIG. 18A) performs the same function as the moisture-absorbing roller unit 2062 (FIG. 4) in the washing unit 100.

[000194] In some embodiments, the moisture absorption passage is a passage that allows the flow of air created by a fan (e.g., a circulation fan 1210) to pass from the drum 1302 into the area of the moisture absorption and moisture removal device for absorbing moisture from the air flow. In some embodiments, shown in FIGS. 11-12, moist air from the drum 1302 is driven by the circulation fan 1210 and directed from the drum 1302 through the circulation fan 1210 to the roller assembly 1900, i.e., into the moisture absorption zone 1240 for absorbing moisture therefrom.

[000195] In some embodiments, the moisture absorption passage is a passage through which air flow under the action of a fan (e.g., a regeneration fan 1220) passes through the roller assembly 1900, e.g., after turning the moisture absorption zone 1240 into the moisture removal zone 1250 or after heating in the heating section 1150 is directed to one or more components located in the moisture removal passage for removing moisture from the moisture removal zone 1250 of the roller assembly 1900. In some embodiments, shown in FIG. 11 12, an air flow, for example, from the atmosphere or from the condenser 1230, created by the regeneration fan 1220, passes into the heating section 1150, then the heated air enters the moisture-removing zone 1250 of the roller assembly 1900, and then into the condenser 1230, where condensation of moisture from the heated air flow occurs. After passing through the condenser 1230, the dry cold air can either be discharged to the atmosphere or directed to the regeneration fan 1220. In some embodiments, the desiccant 1100 comprises a connector 1182 combined with a circulation fan 1210 (e.g., shown in FIG. 18A), and the connector 1182 is connected to an air outlet pipe of an internal drum of the washing machine, e.g., a rotary drum 1302. In some embodiments, moist air from the laundry items is carried out of the rotary drum 1302 by a flow of circulating air created by the circulation fan 1210, from the rotary drum 1302. In some embodiments, the connection provided by the air flow between the rotary drum and the desiccant 1100 is similar to the connection provided by the air flow and shown in FIG. 15.

[000196] In some embodiments, the desiccant 1100 comprises a connector 1180 extending from the housing to at least a portion of the roller section 1140 (e.g., to the upper housing of the roller 1170 in FIG. 23A). The connector 1180 can be used to connect the roller section 1140 in the desiccant 1100 to an inner drum of a washing machine for laundry items, such as a rotary drum 1302 of the washing machine 1300 shown in FIG. 13. In some embodiments, the roller section 1140, through, for example, the desiccant zone 1240 and the corresponding desiccant passage, comprises an air inlet and an air outlet pipe connected (directly or through another part(s)) to the inner drum of the washing machine. In some embodiments, the connector 1180 is connected to the air inlet of the rotary drum 1302 to direct dry air into the rotary drum 1302 after the moisture removal cycle. In some embodiments, a flexible corrugated pipe or hose is used for the lower part 1184 of the connector 1180 so that the vibration of the rotary drum 1302 during operation is not transmitted to the entire desiccant 1100 as a whole.

[000197] In some embodiments, the regeneration fan 1220 (similar to the regeneration fan 205) creates an air flow for removing moisture in the regeneration passage. In some embodiments, the moisture absorption zone 1240 is located in the moisture absorption passage and the circulating air flow passes through it. In some embodiments, the moisture removal zone 1250 is located in the regeneration passage and the air flow passes through it for removing moisture. In some embodiments, a portion of the roller assembly 1900 located in the moisture absorption zone 1240 absorbs moisture from the circulating air flow entering the moisture absorption passage. When this portion with the absorbed moisture turns into the moisture removal zone 1250, the absorbed moisture is removed by the air flow for removing moisture. In some embodiments, after the moisture has been removed and diverted and the “regenerated” portion of the roller assembly 1900 has been rotated back into the moisture absorption zone 1240, it is again capable of absorbing moisture from the circulating air stream.

[000198] In some embodiments, the roller section 1140 may be divided into more than two zones, such as three. For example, in addition to the moisture absorption zone 1240 (e.g., dehumidification zone) and the moisture removal zone 1250 (e.g., regeneration zone or heating zone), a cooling zone (not shown) may be located after the regeneration zone according to the size of the fan. Accordingly, the heated air from the regeneration zone (after heating) may then pass through the cooling zone into the moisture absorption zone, which should provide higher dehumidification efficiency.

[000199] In some embodiments, more than one roller, e.g., two rollers, may be used to alternately perform the moisture absorption and regeneration functions. Accordingly, the drum will be provided with air inlet and air outlet pipes for each of two or more rollers. In some embodiments, the drum is provided with one pair of air inlet and air outlet pipes, which then branch into two pipelines each for connection to two rollers. In some embodiments, while one roller absorbs moisture, the second roller removes moisture (during the regeneration process). In some embodiments, when a given switching mechanism is triggered, e.g., at a certain point in time or when a state of saturation of the moisture absorption roller is detected, the switching mechanism redirects the air flow in such a way that the moisture removal process begins on the first roller, and the moisture absorption process begins on the second roller.

[000200] In some embodiments, instead of using a rotating roller, other types of moisture-absorbing and moisture-removing structures can be used, for example, a caterpillar transmission for moving from one moisture-absorbing passage to another, a flat moisture-absorbing and moisture-removing component moving reciprocally. For example, the moisture-absorbing and moisture-removing passages can alternate on a plane. During the translational movement of the moisture-absorbing and moisture-removing device relative to the two passages, the moisture-absorbing and moisture-removing parts can alternately perform the functions of moisture absorption and moisture removal. After the start of the translational movement, moisture absorption and moisture removal are performed alternately in different zones.

[000201] In some embodiments, when using a circular moisture-absorbing and moisture-removing structure, the drive mechanism rotates the structure relative to the moisture-absorbing passage and the regeneration passage or rotates the moisture-absorbing passage and the regeneration passage relative to the disk. In some embodiments, the moisture-absorbing and moisture-removing structure comprises a belt. The drive mechanism rotates the belt, providing a linear (or translational) movement toward the moisture-absorbing passage and the regeneration passage or linearly moves the moisture-absorbing passage and the regeneration passage relative to the belt. In some embodiments, two or more moisture-absorbing elements may be provided and the drive mechanism is used to move different moisture-absorbing elements (or move the moisture-absorbing passage and the regeneration passage) so that different moisture-absorbing elements are alternately located in the moisture-absorbing passage and in the regeneration passage.

[000202] FIG. 13 is a rear view of the washing unit 1300 with the desiccant 110 shown in FIG. 11, in some embodiments. In some embodiments, the desiccant 1100 is mounted on the washing unit 1300. In some embodiments, the desiccant 1100 may also be mounted on the side, behind, or underneath the washing unit 1300. The washing unit 1300 includes a rotary drum 1302 for washing and/or drying laundry items. During operation, the rotary drum 1302 rotates about an axis of rotation 1304 (perpendicular to the image plane). In some embodiments, the rotary drum may also rotate about an axis parallel to the image plane and perpendicular to the ground surface, or about an axis parallel to the image plane and parallel to the ground surface, or in other suitable directions. In some embodiments, the dehumidifier 1100 is connected to the interior of the rotary drum 1302 by a connector 1182, which is combined with the circulation fan 1210. In some embodiments, the connector 1182 shown in FIG. 12-13 contains a flexible, stretchable hose connecting the circulation fan 1210 to the rotary drum 1302. The connector 1182 prevents the vibrations of the rotary drum 1302 from being transmitted to the dehumidifier 1100 during operation.

[000203] FIG. 14 is a perspective view of the desiccant 1100 shown in FIG. 11 mounted to the top of the washing unit 1300, in some embodiments. In some embodiments, the desiccant 1100 is mounted to the washing unit 1300. As shown in FIG. 11, the desiccant 1100 may be connected by multiple mounting brackets 1190, i.e., may be located behind, on the left or on the right (see FIGS. 11 and 12), intended for installing the desiccant 1100 on the upper frame of the washing unit 1300. For example, the design of the upper frame of the washing unit includes a rear post 1310, a left post 1312 and a right post 1314. In some embodiments, the desiccant 1100 is also provided with a rear frame 1320 for the upper part of the washing unit 1300, providing places and connections for various wires and pipelines. In some embodiments, the desiccant 1100 is installed on the upper frame of the washing unit 1300, forming a single combined module with it. For mounting and stabilizing the desiccant 1100 on the rear post 1310, the left post 1312 and the right post 1314 of the upper frame of the washing unit 1300, as shown in FIGS. 11, 12 and 14, suitable connecting parts are used, such as mounting brackets 1190 and suitable mechanisms, such as latches, clamps, hangers, etc. In some embodiments, the mounting brackets are retractable (i.e., releasably connected) from the solid and one-piece lower casing of the desiccant 1100 and are mounted, secured, and secured to the upper frame to install and stabilize the desiccant 1100 on the washing unit 1300. Since the desiccant 1100 does not contact the outer surface of the rotary drum, vibration generated by the rotary drum during operation is not transmitted to the drying module and does not affect the components of the desiccant 1100, such as the roller section 1140.

[000204] In some embodiments, in order to minimize the height of the washing unit 1300, two or more parts of the desiccant 1100 located above the rotary drum 1302, including the roller section 1140 with the moisture-absorbing zone 1240 and the moisture-removing (or regeneration) zone 1250, the circulation section 1110 with the circulation fan 1210, the regeneration section 1120 with the regeneration fan 1220 and/or the condensation section 1130 with the condenser 1230 in one plane, for example, are placed in a horizontal plane parallel to the ground surface or in a vertical plane perpendicular to the ground surface. In some embodiments, the roller section 1140 with the roller assembly 1900 is located near at least one circulation section 1110 with the circulation fan 1210, the regeneration section 1120 with the regeneration fan 1220 and the condensation section 1130 with the condenser 1230. For example, these four components can be located one after the other in a row. Another example: the roller assembly 1900 (or a moisture-absorbing and moisture-removing structure of another shape) is located near the circulation section 1110 with the circulation fan 1210, the regeneration section 1120 with the regeneration fan 1220 and the condensation section 1130 with the condenser 1230 (the embodiment shown in FIG. 12). In some embodiments, the circulation section 1110 with the circulation fan 1210 and the condensation section 1130 with the condenser 1230 are located on both sides of the regeneration section 1120 with the regeneration fan 1220. In some embodiments, the circulation section 1110 with the circulation fan 1210, the regeneration section 1120 with the regeneration fan 1220 and the condensation section 1130 with the condenser 1230 are located in the same plane. In some embodiments, when arranging two components in the same plane, it is possible to arrange the upper surface of one component in the same plane with the upper surface of the other component, or to arrange the lower surface of one component in the same plane with the lower surface of the other component, or to arrange the upper surface of one component in the same plane with the lower surface of the other component. In some embodiments, when two components are located in one plane, it is possible to place the center (i.e., the geometric center) of one component in one plane with the central point of the other component, or to place the center of gravity of one component in one plane with the center of gravity of the other component, or to place the geometric center of one component in one plane with the center of gravity of the other component. In some embodiments, the desiccant 1100 with several parts located in one plane allows to save space significantly during storage and provides a more compact design of the washing unit 1300. Example: as can be seen in FIG. 11, the desiccant 1100 contains one or more parts, including a roller section 1140, a circulation section 1110, a regeneration section 1120 and a condensation section 1130, located in one horizontal plane. Another example: the roller section 1140 can be located in the same plane with any two parts of: the circulation section 1110, the regeneration section 1120 and the condensation section 1130. For example, at least one surface of one part is in the same plane with at least one surface of the other part. Another example: the geometric center or center of gravity of one component can be located in the same plane with the geometric center or center of gravity of another component. In some embodiments, the desiccant 1100 can be located on top of the washing unit 1300 as shown in FIG. 13, behind the washing unit (FIG. 33), under the washing unit (FIG. 34) or in another configuration with the washing unit.

[000205] In some embodiments, two or more axes of rotation of two or more rotating parts of the roller assembly 1900 (FIG. 18A), the circulation fan 1210, the regeneration fan 1220 are mutually parallel. For example, the axes of rotation (of the corresponding rotating parts) of the roller assembly 1900, the circulation fan 1210, the regeneration fan 1220 are mutually parallel. In some embodiments, one or more axes of rotation of the roller assembly 1900, the circulation fan 1210, the regeneration fan 1220 are perpendicular to the upper casing of the washing unit 1300. In some embodiments, the axis of rotation 1142 of the roller assembly 1900 in the roller section 1140, the axis of rotation 1112 of the circulation fan 1210 in the circulation section 1110 and the axis of rotation 1122 of the regeneration fan 1220 in the regeneration section 1120 are mutually parallel and perpendicular to the axis of rotation 1304 of the rotary drum 1302 for loading laundry items into the washing unit 1300. In some embodiments, the air ducts connecting various parts of the desiccant 1100 are also connected in a compact area, which ensures the efficiency of the drying process.

[000206] In some embodiments, the overall height of the washing unit depends on a combination of the diameter of the rotary drum 1302 and the thickness of the desiccant 1100 (taking into account the casing in which the desiccant 1100 is enclosed) located above the rotary drum. In some embodiments, the overall height or overall depth of the washing unit depends on a combination of the diameter of the rotary drum 1302 and the diameter of the roller section 1140. In some embodiments, the circulation fan 1210, the regeneration fan 1220 and/or the condenser 1230 are located in one or more corners between the outer casing and the rotary drum 1302 of the washing unit 1300, which provides a more compact arrangement of the washing unit. In some embodiments, the circulation fan 1210, the recovery fan 1220 and/or the condenser 1230, the water piping connecting the various parts, can be located in suitable horizontal or vertical locations to provide a more compact layout without sacrificing performance.

[000207] In some embodiments shown in FIG. 11-14, the rotating shaft (along the axis of rotation 1142) of the rotating element of the roller section 1140, the rotating shaft (along the axis of rotation 1112) of the circulation fan and the rotating shaft (along the axis of rotation 1122) of the regeneration fan 1220 are out of plane and are located vertically with respect to the rotating shaft (along the axis of rotation 1304) of the rotary drum 1302 of the washing unit 1300. In some embodiments, the rotating shaft of the rotating element of the roller section 1140, the rotating shaft of the circulation fan 1210 and the rotating shaft of the regeneration fan 1220 are located on one or both sides of the rotating shaft of the rotary drum 1302. In some embodiments, due to the fact that the diameter of the circulation fan 1210 and the diameter of the rotating element of the roller section 1140 is larger than the diameter of the regeneration fan, the rotating shaft roller section 1140 and the rotating shaft of the circulation fan are not located in a plane and are perpendicular to the rotating shaft of the rotary drum 1302 and are located on both sides of the rotating shaft of the rotary drum 1302. Example: FIG. 14 shows the rotating shaft of the roller section 1140, located on one side of the rotating shaft of the rotary drum 1302, and the rotating shaft of the circulation fan 1210, located on the other side of the rotating shaft of the rotary drum 1302.

[000208] FIGS. 15A-15B show a top view (i.e., from the side of the upper casing) and a bottom view (i.e., from the side of the impeller located opposite the upper side of the casing), respectively, of the circulation fan 1210 of the desiccant 1100 shown in FIG. 11, in some embodiments. FIG. 15C is an exploded view of various components of the circulation fan 1210 of the desiccant 1100 shown in FIG. 11, in some embodiments. In some embodiments, the circulation fan 1210 comprises a motor 1610, an upper casing 1620 (spiral), a gasket 1630 and an impeller 1640. In some embodiments, the spiral casing 1620 comprises one or more grooves, clamps and/or latches for laying and fixing wires and/or pipelines. In some embodiments, the shape of the spiral casing 1620 is designed to pass liquid media and provides air passages designed for optimal or maximum air flow rate and velocity during operation of the dehumidifier 1100.

[000209] FIG. 16 shows a lower casing 1160 for accommodating components of a desiccant 1100 with a circulation section 1110 in some embodiments. In some embodiments, the lower casing 1160 can be divided into several zones for installing various components of the desiccant 1100, including a circulation fan zone 1650 with a circulation fan 1210. In some embodiments, a spiral casing 1620, a motor 1610, and an impeller 1640 can be combined with screw connections into a single unit in the circulation fan zone 1650 of the lower casing 1160. In some embodiments, a spiral casing 1620 contains a groove for accommodating a gasket 1630. In some embodiments, shown in FIG. 15C and 16, the lower casing 1160 contains a groove for accommodating a gasket 1630 of a spiral casing 1620 for fixing and sealing the circulation fan 1210 in the lower casing 1160.

[000210] In some embodiments, the lower casing 1160 of the desiccant 1100 is a one-piece, integral shell. In some embodiments, the lower casing 1160 comprises several mounting brackets 1190 for mounting and securing the entire desiccant module 1100 to the frame of the washing machine (as shown in FIGS. 11-12). In some embodiments, the lower casing 1160 is divided into several zones for mounting various components of the desiccant 1100, including a roller zone 1660, a circulation fan zone 1650, a condenser zone 1670, and a regeneration zone 1680 for mounting a regeneration fan 1220. In some embodiments, one of which is shown in FIG. 15C, the circulation fan 1210 comprises an impeller 1640 and an upper casing (spiral casing 1620) covering the impeller 1640. The circulation fan 1210 can be located and secured in the area of the circulation fan 1650. In some embodiments, the regeneration fan 1220 can be built-in or assembled and installed in the corresponding area of the regeneration fan 1680 of the lower casing 1160. In some embodiments, the roller area 1660 is divided into several passages: for the moisture-absorbing area 1240 and the moisture-removing area 1250 (heating section 1150) and the direction of the air flow in the roller area 1660 under the action of the pressure difference.

[000211] FIG. 17 is a schematic view of the lower housing 1160 of the desiccant 1100 in some embodiments. In some embodiments, the connector 1182 may be bolted to the lower housing 1160 through the plate 1186 in the area of the circulation fan 1650. FIG. 18A is a schematic view of the roller assembly 1900 (including the roller 1914 and associated parts shown in FIG. 19) of the roller section 1140, a connector 1180 of the roller section 1140 in the desiccant 1100 with the rotary drum 1302, a circulation fan 1210 and a connector 1182 of the circulation fan 1210 to the rotary drum 1302 for providing air circulation between the desiccant 1100 and the rotary drum 1302 of the washing machine 1300, for some embodiments. In some embodiments, shown in FIG. 12, 15B, 15C and 18A, the spiral casing 1620 and the motor 1610 of the circulation fan 1210 can be screwed to the lower casing 1160 on one side, and the impeller 1640 can be installed on the opposite side of the lower casing 1160. The connector 1182 is also screwed to the plate 1186 and is brought to the impeller of the circulation fan 1210. In turn, the plate 1186 is screwed to the lower casing 1160.

[000212] FIG. 18B is a schematic view of the air circulation (shown by arrows) between the roller assembly 1900, the joint 1180, the circulation fan 1210, and the connector 1182 in some embodiments. In some embodiments, the flexible connector 1182 (hose, connecting hose) provides a connection between the circulation fan 1210 and the rotary drum 1302 of the washing machine 1300. As shown in FIG. 18B, the air flow (moist air from the wet laundry items) enters (1810) the connector 1182 from the rotary drum 1302 through the air outlet of the rotary drum 1302 (passing through a mesh filter installed in this opening or near it), passes through the connector to the circulation fan 1210. In some embodiments, the air flow passes (1820) from the circulation fan 1210 to the lower side of the roller assembly 1900. In some embodiments, the air flow passes from the lower side of the roller assembly 1900 through (1830) the roller assembly 1900, to the upper part of the roller assembly 1900. In some embodiments, during the circulation, moisture is absorbed from the moist air coming from the rotary drum 1302. In some embodiments, when the roller rotates, dried air enters (1840) the upper space of the roller assembly 1900 and enters the zone corresponding to the connector 1180. In some embodiments, dried air enters (1850) the connector 1180. In some embodiments, dried air passes through the connector 1180 into (1860) the rotor drum 1302.

[000213] FIG. 18C is a schematic view of the sealed connections between the connector 1180 and the roller area 1140 with the gasket 1188 in some embodiments. In some embodiments, the connector 1180 can be secured to the extension in the roller area 1140, and the gasket 1188 is used to seal the connection between the connector 1180 and the roller area 1140 to prevent leakage of circulating air.

[000214] FIG. 19A is an exploded view of the roller assembly 1900 in some embodiments. FIG. 19B is a perspective view of the roller assembly 1900 coupled to the gear 1932 driven by the motor 1144 in some embodiments. FIG. 19C is a perspective view of the roller assembly 1900 coupled to the block of auxiliary rollers 1940 in some embodiments. FIG. 19D is a top view of the roller assembly 1900 coupled to the block of auxiliary rollers 1940 located in the lower housing 1160 in some embodiments. FIG. 19E is a top view of the block of vertical rollers 1944 located in the lower housing 1160 in some embodiments.

[000215] In some embodiments, the roller assembly 1900 includes a separating upper casing 1910, a separating gate 1912, a roller 1914, a separating lower casing 1916, an annular seal 1918, an upper centralizer 1920, a central shock absorber 1922 and a lower centralizer 1924. In some embodiments, the entire roller 1914 is a molecular sieve, or a molecular sieve (a moisture-absorbing disk) that absorbs moisture from moist air. In some embodiments, the separating upper casing 1910 is combined with the separating lower casing 1916 using appropriate elements: clamps, latches, screws or adhesive joints, and the roller 1914 is located and secured, forming the roller assembly 1900.

[000216] In some embodiments, the separating flap 1912 is made of a suitable sealing material, such as foam rubber, and is secured to the outer separating roller 1914, forming a buffer between the outer ring of the roller 1914 and the inner surfaces of the separating upper casing 1910 and the separating lower casing 1916, preventing their mutual friction or collision of the roller 1914 (molecular sieve) with the separating upper casing 1910 and the separating lower casing 1916 during rotation and protecting these parts from damage.

[000217] In some embodiments shown in FIG. 19B, the separating upper housing 1910 includes a portion of drive teeth 1911 on the outer circumference. When the drive motor 1144 rotates the gear 1932, the teeth of the gear 1932 engage the drive teeth 1911 and rotate the roller assembly 1900 with the roller 1914.

[000218] In some embodiments shown in FIG. 19B-19C, the sealing ring 1918 is located on the outer circumference of the connection of the separating upper housing 1910 and the separating lower housing 1916, which, when connected, form the roller assembly 1900. In some embodiments, the annular seal 1918 is located on the lower housing 1160 (i.e., is fixed to the lower housing 1160). In some embodiments shown in FIG. 19C, the drive teeth 1911, the auxiliary outer ring 1942 and the sealing ring 1918 are located on the outer circumference of the roller 1914 in a direction from the center to the outer ring of the roller 1914. In some embodiments, the drive teeth 1911, the outer ring 1942 and the sealing ring 1918 form three parallel rings. In some embodiments, the outer ring 1942 can be connected, contacted, communicated with the inner surface of the annular seal 1918 or communicated with it in another way on the outer side. In some embodiments, the outer ring 1942 can be connected, contacted, communicated with the outer surface of the drive teeth 1911 or communicated with it in another way on the inner side. In some embodiments, the annular seal 1918 is hermetically connected to the inner wall of the lower casing 1916. In some embodiments, the axial projections of the drive teeth 1911, the outer ring 1942 and the annular seal 1918 can be separated or overlapped. In addition, the outer ring 1942 can be an independent part or be part of the lower casing 1160 or the annular seal 1918. Its flat design and outer diameter correspond to the parameters of the roller 1914.

[000219] In some embodiments, the annular seal 1918 is made of a suitable sealing material (foam rubber, soft rubber, felt, etc.) that provides low resistance during rotation. In some embodiments, the annular seal 1918 seals the connection between the separating upper casing 1910 and the separating lower casing 1916. In some embodiments, as the roller assembly 1900 rotates, the annular seal 1918 also provides a sealed buffer between the roller assembly 1900 and the annular seal 1928 on the lower casing 1160 during rotation so that most of the moist air coming from the rotary drum 1302 of the washing machine 1300 passes through the roller 1914 with the absorption of moisture on the molecular sieve. The roller seal prevents leakage through the gap between the outer surface of the roller 1914 and the inner surface roller zone 1660 in the lower casing 1160. In some embodiments, the annular seal 1918 is used to seal the gap between the inner surface of the lower casing 1160 and the dividing upper casing 1910 and/or the dividing lower casing 1916.

[000220] In some embodiments, the upper centralizer 1920 and the lower centralizer 1924 pass through the central opening of the roller 1914 and are connected with a clamping, bolting, adhesive, etc. connection, forming a connection with the shaft 1926, extending from the roller zone 1660 in the lower casing 1160. In some embodiments, a central shock absorber 1922 can be located between the lower centralizer 1924 and the roller 1914.

[000221] In some embodiments, shown in FIG. 19D, the rollers of the auxiliary roller assembly 1940 are located in separate pockets 1941 of the roller zone 1660 of the lower housing 1160, as shown in FIG. 19A. In some embodiments, the projections 1941 in the lower housing 1160 protrude above the outer surface at the locations of the auxiliary rollers 1940. In some embodiments, when the roller assembly 1900 rotates, the auxiliary rollers 1940 allow the roller 1914 to be eliminated from friction with the inner ring of the roller zone 1660 of the lower housing 1160, preventing damage to the roller 1914. In some embodiments, the auxiliary rollers 1940 can limit the rotation of the roller 1914, protecting the roller 1914 from damage in a collision. Example: auxiliary rollers 1940 can act as a buffer, reducing the force of impact of roller 1914 on the outer ring and the boundary of the roller zone 1660 in the lower casing 1160 during abnormal rotation of the roller assembly 1900, for example, during deformation of the outer casing of roller 1914 due to impacts during abnormal or non-uniform rotation. In some embodiments, the number of auxiliary rollers 1940 can be equal to 4, 6, 8 or another suitable number.

[000222] In some embodiments shown in FIGS. 19B-19D, the auxiliary outer ring 1942 contacts at least one of the auxiliary rollers 1940, ensuring normal rotation of the roller 1914 and reducing its friction. Example: when the roller assembly 1900 is displaced relative to its axis of rotation, the auxiliary outer ring begins to press on the corresponding auxiliary rollers 1940 distributed over the roller zone 1660 of the lower casing 1160, compensating for the displacement from the axis of rotation (e.g., an elastic change in the diameter of the auxiliary roller or absorption of the impact by the auxiliary rollers is possible) and preventing damage or deformation of the roller 1914. In addition, the auxiliary outer ring 1942 makes it possible to reduce the pressure and friction between the auxiliary outer ring 1942 and the auxiliary rollers 1940 during rotation of the roller assembly 1900.

[000223] In some embodiments shown in FIG. 19E, in the roller zone 1660 in the lower casing 1160 there is a block of vertical rollers 1944 (of a fixed diameter), distributed along the inner lower surface of the lower casing 1916, which makes it possible to reduce or eliminate friction of the roller assembly 1900 against the lower casing 1160 during rotation. In some embodiments shown in FIG. 19E, the vertical rollers 1944 are located perpendicular to the auxiliary rollers 1940 in the lower casing 1160, i.e., the axes of rotation of the vertical rollers 1944 are perpendicular to the axes of rotation of the auxiliary rollers 1940.

[000224] In some embodiments, the transmission of motion from the drive is carried out through a system of teeth, blocks, belts, etc. As shown in FIG. 19B, the rotation of the roller assembly 1900 can be carried out by means of drive teeth 1911 distributed along the outer circumference of the roller assembly 1900. In some embodiments, the rotation of the roller assembly 1900 can also be provided through the upper centralizer 1920 and the lower centralizer 1924, driven by the rotational shaft 1926 of the lower casing 1160 (as shown in FIG. 19A).

[000225] FIG. 20A is a schematic view of an air regeneration system 2000 in some embodiments. FIG. 20B is a side view of an air regeneration system 2000 in some embodiments. In some embodiments, the air regeneration system includes a regeneration zone of a roller 2010 (corresponding to a moisture-removing zone 1250 of a roller assembly 1900 or a portion of a roller 1914 located in a heating section 1150), a condenser 1230 (in a condensing section 1130), a regeneration fan 1220 (in a regeneration section 1120), and heating elements in a heating zone 1150. In some embodiments, the air flow for regeneration circulates in a closed loop. Example: the air flow for regeneration alternately passes from the regeneration fan 1220 through the heating elements in the heating section 1150, the upper part of the regeneration zone of the roller 2010, through the regeneration zone of the roller 2010 to the lower part of the regeneration zone of the roller 2010, the condenser 1230 and then returns to the regeneration fan 1220. In some embodiments, the air flow for regeneration passes along an open circuit. Example: from the suction and discharge side, the regeneration fan 1220 communicates with the atmosphere. In an open system, the air flow alternately passes the suction and discharge of the regeneration fan 1220, the heating elements of the heating section 1150, the roller assembly 1900 (through the part of the roller 1914 located in the moisture absorption zone 1250 or in the moisture removal zone), the condenser 1230 and then is discharged into the atmosphere. In some embodiments, condenser 1230 condenses hot, moisture-saturated air coming from the moisture-removing zone of roller unit 1900 to produce cooled and dried air. Condensate is discharged from condenser 1230 through water outlet pipe 1134 of condenser 1230.

[000226] FIG. 21A is an exploded view of the lower casing 1160 of the desiccant 1100 in some embodiments. FIG. 21B is an exploded view of the roller zone 1660 in the lower casing 1160 in some embodiments. In some embodiments, the lower casing 1160 of the desiccant 1100 comprises a roller zone 1660 with a roller assembly 1900, a circulation zone 1650 with a circulation fan 1210, and a condensation zone 1670 with a condenser 1230. In some embodiments, the lower casing 1160 is a single, non-detachable component installed in the washing machine. As indicated in this document, flexible hoses can be used to connect the air outlet and air inlet pipes of the rotary drum to the roller section 1140 in order to prevent the transmission of vibration to the roller section 1140. In some embodiments, the lower casing 1160 can also contain separate sections for accommodating the corresponding components of the desiccant 1100. In some embodiments, the roller area 1660 can be rigidly fixed to the frame of the washing unit, and other parts can be rigidly connected to the outer surface of the drum. Since small parts suffer less from vibrations than the roller assembly, such an arrangement allows to avoid damage to the roller while reducing the cost of the complex design of the lower casing. In some embodiments, the connection between the air inlet of the dehumidifying passage on the roller (i.e. with the air inlet of the circulation fan) and the air outlet (connected to the drum) can be made using a flexible corrugated hose. In some embodiments, there is also a flexible connection between the air outlet of the regeneration fan and the air inlet of the regeneration passage of the roller. Another flexible connection can be made between the air outlet of the regeneration passage of the roller and the air inlet of the condenser. In some embodiments, the pipelines between the casing of the roller assembly and all components subject to vibrations are made of flexible pipes to isolate the roller assembly from the effects of vibrations.

[000227] In some embodiments, the roller zone 1660 comprises partitions/dividing elements 2110, such as brackets, for dividing the roller zone 1660 of the lower casing 1160 into a moisture absorption zone 1240 (drying zone) and a moisture removal zone 1250 (regeneration zone). In some embodiments, upper casings are provided, including an upper casing of a separate circulation fan (e.g., a spiral casing 1620) or an upper casing of a condenser.

[000228] In some embodiments, the roller area 1660 of the lower casing 1160 comprises a divider 2100 for separating the air flow circulating in the roller assembly 1900. In some embodiments, the air outlet pipe of the circulation fan 1210 is connected to the air inlet pipe 1649 of the roller section 1140, located in the roller area 1660 of the lower casing 1160 to form an air flow, between the circulation section 1110 and the roller section 1140. The roller section 1140 may comprise an air outlet pipe 1647, located in the roller assembly housing 1900 (the upper roller housing 1170, shown in FIG. 2]B), as shown in FIG. 18C. In some embodiments, the circulating air flow created by the circulating fan 1210 comes from the circulating fan 1210 through the air inlet pipe 1140 of the roller assembly into the space between the roller assembly 1900 and the roller zone 1660, and is divided into two parts by the divider 2100 for a more uniform distribution along the roller assembly 1900 in order to increase the efficiency of the latter. This makes it possible to prevent air accumulation in the area of the outer ring of the roller assembly 1900 under the influence of the centrifugal force arising during the rotation of the roller. This makes it possible to increase the efficiency of moisture absorption and removal due to a more uniform distribution of the air flow.

[000229] FIG. 22 is an exploded view of a system 2200 that includes a heating section 1150 and a regeneration section 1120 of a desiccant 1100 in some embodiments. In some embodiments, the heating section 1150 is connected to the regeneration section 1120 via an upper heating section housing 2210, a connector 2220, an upper regeneration fan housing 2228, a lower regeneration fan housing 2240, and another connector 2250 connected together.

[000230] FIG. 23A is an exploded view of a system 2300 that includes a roller assembly 1900 sandwiched between an upper roller housing 1170 and a lower desiccant housing 1160 in some embodiments. In some embodiments, the roller assembly 1900 may be secured between the upper roller housing 1170 and the lower roller housing 1660 using screw, clamp, adhesive, etc. connections to form a roller section 1140. In some embodiments, upper sealing members 2310 are secured to the upper roller housing 1170 with screws, clamps, adhesive, etc. In some embodiments, lower sealing members 2320 are secured with screws, clamps, adhesive, etc. on the separating elements 2340 in the lower casing of the roller 1660, forming a regeneration zone (moisture-removing zone 1250) for the air flow. In some embodiments, in the system 2300, the moisture-absorbing zone 1240 can be separated from the moisture-removing zone 1250. Example: the moisture-absorbing zone 1240 and the moisture-removing zone 1250 can be separated by separating elements 2340 inserted into projections in the upper casing 1170. In some embodiments, the sealing elements 2110, including the upper sealing elements 2310 and the lower sealing elements 2320 provide sufficient sealing of the respective zones, preventing the air flow from the moisture-absorbing zone 1240 from passing through the separating elements 2110 into the moisture-removing zone 1250, and the air flow in the moisture-removing zone 1250 from entering the moisture-absorbing zone 1240 through the separating elements 2110. Example: a soft sealing material may be located between the roller assembly 1900 and the upper roller housing 1170 and the lower roller housing 1660. In some embodiments, the sealing elements 2110 may be made of foam rubber, rubber, silicone or other suitable material. In some embodiments, the connection between the sealing elements 2110 and the upper roller housing 1170 and the lower roller housing 1660 may be provided by metal brackets or screws.

[000231] FIG. 23B is an exploded view of a system 2350 that includes an upper roller housing 1170 and a lower roller housing 1660 in some embodiments. In some embodiments, the upper roller housing 1170 and the lower roller housing 1660 may be fastened together with screws or bolts and further sealed with an O-ring 2360 to provide a tight seal for the roller section 1140. In some embodiments, the O-ring 2360 may be made of rubber, silicone, or another suitable material. In some embodiments, a recess may be formed along the edge of the upper roller housing 1170 and the lower roller housing 1660 for the O-ring 2360 to be placed in the recess before the upper roller housing 1170 and the lower roller housing 1660 are connected and fastened together with bolts.

[000232] FIG. 24A is a perspective view of a desiccant 1100 with a heating section 1150 in some embodiments. In some embodiments, the heating elements of the heating section 1150 are covered by an upper casing of the heating zone 2210 (FIG. 22). In some embodiments, a seal 2230 and thermal insulation 2240 are applied around the heating zone 1150. In some embodiments, the seal 2230 is made of foam rubber, silicone, or adhesive. In some embodiments, the thermal insulation 2240 is made of a thermal insulation material or a suitable alloy and is located between the heating elements of the heating section 1150 and the upper casing of the heating zone 2210.

[000233] In some embodiments, thermal insulation 2240 is placed on seal 2230 (made of foam rubber, silicone or glue). Example: seal 2230 is applied directly to the upper casing of heating zone 2210 and contacts with air of heating zone 1150. Thermal insulation 2240 in combination with seal 2230 can separate moisture-absorbing zone 1240 from moisture-removing zone 1250 (regeneration zone), providing free passage of air flow for regeneration through roller 1914. In some embodiments, seal 2230 is located at a distance of 0.2-2 mm from roller 1914, for example, at a distance of 0.8 mm, so that while ensuring a certain level of tightness during rotation, roller 1914 does not touch seal 2230 and does not experience additional resistance. In some embodiments, thermal insulation 2240 serves as a barrier to heat flow, so that heating section 1150 is isolated from plastic upper casing of roller 1170, which could deform or catch fire from prolonged exposure to heat.

[000234] FIG. 24B is a perspective view of the heating section 1150 in some embodiments. FIG. 24C is a perspective view of the mesh plate 2420 used in the heating section 1150 in some embodiments. FIG. 24D is a top view of the mesh plate 2420 combined with the heating elements 2450 of the heating section 1150 in some embodiments. In some embodiments, the heating section 1150 is configured to the size of the fan (the air flow for regeneration enters the regeneration section 1120 and the heating section 1150 through 2410, as shown in FIG. 22), defining a space between the upper and lower casings and the two side walls along the radial direction, as shown in FIG. 24B. In some embodiments, this space (the passage for the flow of air for regeneration) contains a mesh plate 2420 and heating elements 2450 located under the mesh plate 2420.

[000235] In some embodiments, the air flow enters through 2410 from the regeneration air flow passage, passes radially through the mesh plate 2420 and enters downwards to the heating elements 2450 through the air holes 2430 of the mesh plate 2420. The heated air flow then enters the regeneration zone of the roller, producing a heating and drying action (i.e., drying) in the regeneration zone. In some embodiments, the holes 2430 have a diameter that decreases along the thickness of the plate. In some embodiments, the air flow may enter the heating section 1150 from the other side, for example, through 2409, as shown in FIG. 24V, pass through the mesh plate 2420, enter the heating elements 2450 through the holes 2430 and exit the heating section 1150 on the other side, for example, through 2407 or 2410, which ensures a more uniform distribution of the heated air flow and a more uniform air flow for regeneration.

[000236] In some embodiments, the heating elements 2450 are located in close proximity to the mesh plate 2420 so as not to create a large resistance to the movement of the air flow through the openings 2430. In some embodiments, the heating elements 2450 are located after the openings 2430 with an offset so that when air enters along the radius and passes through the openings 2430 along the radius, the flow is accelerated in the direction shown by the arrow, and the offset allows the air flow passing through the openings 2430 to move toward the heating elements 2450.

[000237] In some embodiments shown in FIG. 24D, the temperature in the zone is controlled by a thermostat that controls the switching on and off of the heating elements 2450. In some embodiments, a heat-conducting sheet 2442 is mounted on the thermostat for mounting the temperature controller 2444 thereon. For example, the heat-conducting sheet 2442 covers the temperature controller 2444, heat from the heating section 1150 is conducted by the heat-conducting sheet 2442, and the temperature controller 2444 determines the temperature of the heat-conducting sheet 2442. Such a scheme makes it possible to eliminate the effect of turbulent eddies of the air flow in the heating zone on the operation of the controller. With an uneven distribution of temperature zones, the efficiency of temperature determination and, accordingly, control of the operation of the heating elements 2450 may decrease.

[000238] In some embodiments, other regeneration methods are used instead of heating, such as ultrasonic regeneration, microwave regeneration, etc. When using other regeneration methods, the material of the roller may be different. In some embodiments, lithium chloride, zeolite, modified silica gel, etc. are used as moisture-absorbing materials for the rollers compatible with the heating method. In some embodiments, silica gel may be used when using the ultrasonic regeneration method. In some embodiments, the roller may also be coated with activated alumina, 13X molecular sieve (sodium), etc. In some embodiments, the moisture-absorbing part may comprise a container with a liquid solvent, gel, or solid substance capable of absorbing water.

[000239] FIG. 25 is an exploded view of a condensation section 1130 that includes a condenser 1230 for installation in a lower housing 1160 in some embodiments. The condenser 1230 can be located in a condensation zone 1670 in the lower housing 1160 using spacers and taking into account space constraints. The housing 1672 of the condenser 1230 presses the sealing tape 1674 surrounding the condenser 1230, providing a seal.

[000240] FIG. 26 is a perspective view of a dehumidifier 1100 with a condensing section 1130 in some embodiments. In some embodiments, the flow of air circulating in the condensing section 1130 is a flow of heated and moisture-saturated air entering the condensing zone B from the air inlet A, and dry air that has passed through the condenser exits the condensing zone B through the air outlet C. In some embodiments, one or more dampers 2610 are provided in the casing 1672, secured to the lower surface and located below the condenser located in the casing 1672 and preventing moist air passing under the condenser and displaced from the condensing section 1130 from directly passing to the air outlet C without passing through the condenser. In some embodiments, no dampers are provided in the casing 1672.

[000241] FIGS. 27A-27B show a schematic view of the piping arrangement of the condenser 1230 in some embodiments. In some embodiments, water cooling is used for condensation. For example, hot and humid air from wet laundry items enters the condenser 1230, where moisture is condensed from it, providing drying of the hot and humid air. Proper piping can increase the efficiency of the condenser and reduce condensation time. FIG. 27A shows a general piping layout, running from top to bottom. FIG. 27B shows a general piping layout, running from left and top to bottom. The order of the condensate from inlet to outlet is marked with numbers from 1 to 20.

[000242] In some embodiments, the basic principle of condensation is that when in contact with cold objects, such as the condenser pipes 1230 through which cooling water flows, moisture from the hot and humid air condenses. In some embodiments, shown in FIG. 27A, the temperature of the water passing from top to bottom is relatively high. In some embodiments, shown in FIG. 27B, the temperature of the condensate gradually increases from right to left, and the temperature of the hot humid air gradually decreases from left to right. In this case, throughout the condensation process, it is possible to maintain the temperature difference between the hot humid air and the condensate at a certain level, increasing the efficiency of condensation.

[000243] In some embodiments, in addition to the condenser located in the regeneration passage, a second condenser or condenser element may be installed between the air outlet of the rotary drum of the washing machine and the roller. In this case, the flow of hot, moist air having a comparatively high temperature that has passed through the first condenser is then directed through the moisture-absorbing zone of the roller.

[000244] FIG. 28 is a schematic view of several components located inside the washing unit 1300, in some embodiments. The washing unit may include a water inlet pipe 2810 connected to a water supply, and three water outlet pipes: a condenser water outlet pipe 2840 for supplying cold water to the condenser, a filter self-cleaning device water outlet pipe 2820 for supplying water to the spray arm of the mesh filter self-cleaning device, and a drum/detergent tray water outlet pipe 2830 for supplying water to the drum and/or the detergent tray of the washing unit. In some embodiments, a switch with a solenoid valve is mounted on the water outlet pipe 2830 for controlling the supply of water to the drum or to the detergent tray. In some embodiments, the water supply line to which the water outlet pipe 2830 is connected is also connected to the detergent tray, so that during washing, water first rinses the detergent from the tray into the drum, and then water for washing is collected in the drum.

[000245] In some embodiments, an air outlet passage 2850 is connected to the air outlet pipe of the drum. By the action of the circulation fan, humid air from the drum enters the moisture-absorbing zone of the roller, where moisture absorption occurs. In some embodiments, a mesh filter 2850 is installed in the air outlet passage 2850, trapping fluff that may form in the drum during washing or drying of clothing items. In this way, fluff is prevented from entering the roller area and clogging it, which may lead to a decrease in the efficiency of moisture absorption. In some embodiments, fluff stuck to the moisture-absorbing zone of the roller can then be transferred to the regeneration zone during rotation of the roller. Since there is a heater in the regeneration zone, combustion of the fluff is possible.

[000246] FIGS. 29A-29C show perspective views of the air outlet passage 2850 with the mesh filter 2900 in some embodiments. As shown in FIG. 29A, the air inlet pipe 2910 (connected to the water outlet pipe 2820 of the self-cleaning filter device) of the sprayer 2920. The sprayer 2920 connects an inlet 2919 to the mesh filter 2900 and gradually flattens out, providing coverage of the mesh filter 2900 with water over the entire width. In some embodiments, the mesh filter is inclined and covers the entire cross-section of the air outlet passage, i.e. air outlet passage 2850, increasing the area of the mesh filter 2900 in the air outlet passage 2850 through which the air flow passes in order to prevent the mesh filter 2900 from becoming completely clogged, which would result in a reduced air flow through the filter. Increasing the area of the mesh filter 2900 blocking the air outlet passage 2850 does not affect the air flow through the filter 2900 even in the event of partial blockage during self-cleaning. In some embodiments, the angle of the mesh filter 2900 is small in order to prevent fluff from getting stuck in the mesh filter 2900, which would complicate the self-cleaning process.

[000247] In some embodiments, self-cleaning water enters through the water inlet 2910 and is sprayed onto the mesh filter 2900 through the sprayer 2920. At the same time, condensate flows from the drum in the opposite direction. For example, the condensate first passes through one surface of the mesh filter 2900 (which can be defined as the filter surface in which the fluff is retained), and then passes through the mesh filter 2900 and further into the moisture-absorbing zone of the roller. In some embodiments, self-cleaning water exits the water inlet 2910, reaches the sprayer 2920, and then passes through the sprayer expander, washing the mesh filter 2900 and washing away the fluff stuck to it. As shown in FIG. 29B, the width of the sprayer expander 2930 can be equal to the width of the mesh filter 2900.

[000248] In some embodiments, after washing the mesh filter 2900, the self-cleaning water enters the drain hole of the washing unit and is discharged from it. In some embodiments, the drain hole may be intended only for draining the self-cleaning water. In some embodiments, the drain hole may also be a drain hole for the drum of the washing unit.

[000249] FIGS. 30A-30B show perspective views of one or more portions of the air outlet passage 2850 with the screen filter 2900 in some embodiments. In some embodiments, the water inlet pipe 2910 is used to spray water on the screen filter 2900 during its cleaning. In some embodiments, the function of the condenser device of the air outlet passage 2850 of the drum is to slowly spray water on the outer stack 2950 of the air outlet pipe 2850 from the second water inlet pipe 2915 to cool the wall of the pipe 2950 and condense moisture from the stream of hot moist air passing through the air outlet pipe 2850. In some embodiments, a passage for the water flow is provided to prevent leakage of condensate sprayed on the outer wall of the pipe. Next, the waste condensate goes into the external container of the drum or into the water outlet pipe of the washing machine.

[000250] FIGS. 31A-31C show perspective views of a connector 3100 for connecting air ducts in some embodiments. In some embodiments, one end of the connector 3100 is connected to the condensing section 1130, i.e., to the lower casing and the upper casing of the condenser, and the other end of the connector 3100 is connected to the regeneration zone 1680 with the regeneration fan 1220 therein. In some embodiments, the connector 3100 participates in providing air circulation from the condenser to the regeneration fan for cooling. In some embodiments, the air duct connector 3100 can be divided during manufacture into an upper part and a lower part, joined by welding after appropriate processing. In some embodiments, the shape of the air duct connector 3100 allows for the direction of the duct to be taken into account, provides a seal, while simultaneously providing manufacturing manufacturability. In some embodiments, the connector 2250 shown in FIG. 22 may be a 3100 connector.

[000251] FIGS. 32A-32E show perspective views of a connector 3200 for connecting air ducts in some embodiments. In some embodiments, the connector 3200 is used to connect the heating section 1150 to the regeneration fan 1220. In some embodiments, the connector 3200 participates in the circulation of dry cold air supplied from the regeneration fan 1220 to the heating section 1150. In some embodiments, the connector 3200 can be divided into an upper and lower portions that are connected by welding after appropriate processing. In some embodiments, the shape of the 3200 allows for the direction of the air duct, provides a seal, while providing manufacturing manufacturability. In some embodiments, the connector 2220 shown in FIG. 22 is the connector 3200.

[000252] FIG. 33 is a schematic view of several components located within the washing unit 3300, in some embodiments. In some embodiments, instead of placing the desiccant 1100 above the rotary drum, as shown for the washing unit 1300 of FIG. 28, in the washing unit 3300 shown in FIG. 33, the desiccant 1100 is located behind the rotary drum. FIG. 34 is a schematic view of several components located within the washing unit 3400, in some embodiments. In some embodiments, in the washing unit 3400, the desiccant 1100 is located below the rotary drum. As shown in FIG. 28, 33 and 34, a washing unit with a dehumidifier 1100 located together with several parts located in the same plane ensures compactness of the washing unit and allows saving space without compromising drying efficiency. In some embodiments, the dehumidifier 1100 contains one or more of the following parts: a roller section 1140, a circulation section 1110, a regeneration section 1120 and a condenser 1130 located in the same plane. Example: the roller section 1140, the circulation section 1110, the regeneration section 1120 and the condenser 1130 can be located in the dehumidifier 1100 in the same plane. Another example: the size of the roller section 1140 is larger than the size of the remaining parts and the circulation section 1110, the regeneration section 1120 and the condenser 1130 or some of these parts can be arranged in the same plane with the roller section 1140, and the remaining parts can be arranged in another place (other places) of the washing unit, suitable in terms of design and connections.

[000253] FIG. 35 is a rear view of the washing machine 3500 in some embodiments. In some embodiments, instead of placing the air outlet passage 2850 on the left side behind the rotor drum (as in FIGS. 13 and 28), the air outlet passage 2850 is located in the washing machine 3300 on the right side behind the rotor drum.

[000254] In some embodiments, the air outlet passage 2850 may also extend from the rear side to the front left of the drum with a corresponding change in the other structures. For example, the mesh filter can be made manually removable. Since the mesh filter is manually removable, the tray of the mesh filter can be placed on a certain part of the front panel of the washing unit, and at least a part of the air inlet pipe will be located near the front panel of the washing unit.

[000255] A washing machine is proposed, comprising

[000256] laundry container and

[000257] a moisture absorber that comprises a circulation fan configured to direct humid air coming from a container to a moisture absorption and removal device configured to absorb moisture from the humid air, a regeneration fan configured to direct air to remove moisture absorbed by the moisture absorption and removal device, and to direct air to a condenser configured to condense water from the incoming air; wherein the moisture absorption and removal device is located near the circulation fan, the regeneration fan and the condenser.

[000258] In some embodiments, the circulation fan and the condenser are located near the regeneration fan on different sides of it.

[000259] In some embodiments, the moisture absorption and removal device is located in the same plane with at least one circulation fan, a regeneration fan, and a condenser.

[000260] In some embodiments, the circulation fan, the moisture absorption and removal device, the regeneration fan and the condenser are located in the same plane.

[000261] In some embodiments, the moisture absorption and removal device comprises a roller assembly.

[000262] In some embodiments, two or more respective axes of rotation of the circulation fan, roller assembly and regeneration fan in the dehumidifier are parallel to each other.

[000263] In some embodiments, the roller assembly comprises

[000264] a block of auxiliary rollers located in separate sockets in the lower casing, in which one or more parts of the moisture absorber are located, wherein the auxiliary rollers are located parallel to the roller of the roller assembly.

[000265] In some embodiments, the roller assembly comprises

[000266] a block of vertical rollers located in a lower casing in which one or more parts of a desiccant are located and located vertically relative to the roller of the roller assembly.

[000267] In some embodiments, one or more corresponding axes of rotation of the circulation fan, roller assembly and regeneration fan in the desiccant are located perpendicular to the axis of rotation of the container.

[000268] In some embodiments, one or more corresponding axes of fusion of the circulation fan, roller assembly and regeneration fan in the desiccant are located parallel to the axis of rotation of the container.

[000269] In some embodiments, the washing unit additionally comprises

[000270] a lower casing in which zones are located that are configured to accommodate two or more of the following, respectively: a circulation fan, a moisture absorption and removal device, a regeneration fan, and a condenser.

[000271] In some embodiments, the lower casing is a single, non-detachable part.

[000272] In some embodiments, the moisture absorption and removal device comprises a moisture absorption zone and a moisture removal zone;

[000273] the moisture absorption zone comprises at least a first portion of a moisture absorption and removal device for absorbing moisture from humid air from the circulation fan;

[000274] the moisture removal zone comprises a heating section located above the second part of the moisture absorption and removal device near the regeneration fan

[000275] In some embodiments, the desiccant comprises a desiccant passage in which said moisture absorption zone is located and which is designed to direct air from a circulation fan directing air from the container to the desiccant zone.

[000276] In some embodiments, the desiccant comprises a moisture removal passage in which said moisture removal zone is located and which is designed to direct the air flow from the regeneration fan into the condenser to remove moisture from the air.

[000277] In some embodiments, the heating section comprises a block of heating elements located near the air holes in the mesh filter.

[000278] In some embodiments, the heating section has a fan-shaped device, and the diameter of the air holes decreases along the radius towards the center of the fan-shaped device.

[000279] In some embodiments, the heating element block is located near the air holes and is offset along the radius towards the center of the fan-shaped device.

[000280] In some embodiments, the washing unit additionally comprises:

[000281] an air outlet passage connected to an air outlet in the container;

[000282] a filter assembly located in the air outlet passage and containing

[000283] filter mesh and

[000284] self-cleaning filter device for cleaning the filter mesh

[000285] In some embodiments, the desiccant comprises

[000286] a spiral casing designed to cover and secure a circulation fan to a lower casing in which one or more parts of a desiccant are located.

[000287] A combined washer-dryer machine is proposed, comprising:

[000288] internal drum, drying module, circulation fan and regeneration fan;

[000289] the drying module comprises a moisture absorption passage, a regeneration passage and a moisture absorption component; the moisture absorption passage comprises a first air inlet pipe and a first air outlet pipe; the inner drum is connected to the air inlet pipe and the air outlet pipe;

[000290] a circulation fan is located in the moisture absorption passage and provides air supply to the inner drum and the moisture absorption passage; a regeneration fan is located in the regeneration passage and provides air supply for drying in the regeneration passage;

[000291] the moisture-absorbing component is located in the moisture-absorbing passage and the regeneration passage and provides the supply of circulating air and air for drying into the moisture-absorbing component, wherein the moisture-absorbing component is designed to absorb moisture from the air passing through the moisture-absorbing passage during rotation of the moisture-absorbing component and remove moisture by means of an air flow through the regeneration passage.

[000292] In some embodiments, the combined washer-dryer machine further comprises

[000293] a water inlet pipe and a water outlet pipe connected to the inner drum.

[000294] In some embodiments, the combined washer-dryer machine further comprises

[000295] a drive connected to the inner drum and ensuring its rotation.

[000296] In some embodiments, the combined washer-dryer machine further comprises a filtration unit located in the moisture-absorbing passage, wherein the filtration unit is located in front of the moisture-absorbing component.

[000297] In some embodiments, the combined washer-dryer machine further comprises a filtration unit located in the regeneration passage.

[000298] In some embodiments, a heating element is located in the moisture absorption passage.

[000299] In some embodiments, the moisture-absorbing component comprises a moisture-absorbing roller and a heating element;

[000300] the heating block covers the regeneration zone of the moisture-absorbing roller, and the moisture-absorbing section on the rotating moisture-absorbing disk is located in the moisture-absorbing passage,

[000301] wherein the air flow for removing moisture passes through the regeneration zone of the moisture-absorbing roller, and the circulating air flow passes through the moisture-absorbing zone of the moisture-absorbing roller,

[000302] In some embodiments, the heating unit comprises a cover; the cover comprises a regeneration zone of a rotating moisture-absorbing disk; a portion of the cover corresponding to the regeneration zone comprises an opening connected to the regeneration passage; the cover comprises a regeneration heater.

[000303] In some embodiments, the rotating absorption disk comprises an absorption roller and a rotating part connected thereto; the absorption disk is covered with a shell and can rotate relative to it under the action of the rotating part; the shell, in turn, is connected to a moisture-absorbing passage and a regeneration passage.

[000304] In some embodiments, the condenser element is located in the regeneration passage and is designed to cool the air flow to remove moisture in the regeneration passage to dry the air flow to remove moisture.

[000305] In some embodiments, the combined washer-dryer machine further comprises a controller, a temperature sensor installed in the moisture-absorbing passage, and a controller electrically connected to the temperature sensor and the heating element; the controller is used to turn on or off the heating element depending on the temperature recorded by the temperature sensor.

[000306] In some embodiments, a humidity sensor for determining the humidity of the air in the inner drum is located in the inner drum.

[000307] In some embodiments, the combined washer-dryer machine further comprises two or more temperature sensors located in locations other than the locations of the humidity sensors in the inner drum.

[000308] In some embodiments, the combined washer-dryer machine further comprises a casing;

[000309] wherein the inner drum and the drive part are located in the casing; the regeneration passage is at least partially located between the inner drum and the casing;

[000310] a second air outlet pipe and a second air inlet pipe are located on the side surface of the casing; the second air outlet pipe is connected to the air outlet pipe of the regeneration passage, and the second air inlet pipe is connected to the air inlet pipe of the regeneration passage.

[000311] In some embodiments, the combined washer-dryer machine further comprises a housing,

[000312] wherein the moisture-absorbing component is located and secured in the housing; wherein the housing can rotate relative to the moisture-absorbing component.

[000313] A washing machine is proposed, comprising

[000314] a housing having laundry containers, each of which comprises an air inlet and an air outlet passage; and

[000315] a drying device that provides selective drying of laundry in a separate container from a block of containers comprises an air intake connected to an air outlet passage of the separate container and an air outlet connected to an air inlet passage of the separate container.

[000316] In some embodiments, the washing unit additionally comprises

[000317] filter that contains:

[000318] a filter located in the air outlet passage of a separate container or the air inlet pipe of a desiccant device; and

[000319] self-cleaning filter device for cleaning the filter.

[000320] In some embodiments, the desiccant device has separate connections via a switch to multiple containers of the unit.

[000321] In some embodiments, the drying device comprises a moisture-absorbing passage, a moisture-removing passage, and a moisture-absorbing and moisture-removing element that comprises a moisture-absorbing zone connected to the moisture-absorbing passage and a moisture-removing zone connected to the moisture-removing passage;

[000322] the moisture-absorbing passage comprises an air inlet of the drying device located on the air inlet side of the moisture-absorbing zone of the moisture-absorbing and moisture-removing element, and the air outlet of the drying device is located on the air outlet side of the moisture-absorbing zone of the moisture-absorbing and moisture-removing element;

[000323] the moisture-removing passage comprises an air inlet located on the air inlet side of the moisture-absorbing zone of the moisture-absorbing and moisture-removing element. The air-removing section is located on the air outlet side of the moisture-absorbing zone of the moisture-absorbing and moisture-removing element;

[000324] the air inlet section of the moisture absorption passage is selectively connected to a separate container, and the air outlet section of the moisture absorption passage is connected to the air inlet passage of the separate container;

[000325] a rotating moisture-absorbing and moisture-removing element is provided in the moisture-absorbing and moisture-removing passage.

[000326] In some embodiments, the washing unit further comprises a high-speed switching device comprising a first switching device and a second switching device; wherein the air intake passage of the separate container is connected to the air outlet section of the moisture-absorbing passage through the first switch, and the air outlet passage of the separate container is connected to the air intake section of the moisture-absorbing passage through the second switch.

[000327] In some embodiments, the washing filter and the filter self-cleaning device are located in the air intake section of the drying device between the second switch and the moisture-absorbing and moisture-removing element.

[000328] In some embodiments, the second washing switch is located between the air intake section of the drying device and the air outlet passage of the container;

[000329] Moreover, the washing unit may contain more than one second switch in the air outlet passage of the container.

[000330] In some embodiments, the washing unit additionally comprises

[000331] more than one set of filters and self-cleaning devices for filters located in the air outlet passage of the container and located before or after the second switch.

[000332] In some embodiments, the self-cleaning filter washing device comprises a spray mechanism for irrigating the filter, or

[000333] the filter self-cleaning device comprises a vibration device for providing vibration to the filter, or

[000334] the filter self-cleaning device comprises a blowing mechanism for blowing the filter, or

[000335] the filter self-cleaning device comprises a scraper mechanism for mechanically cleaning the filter.

[000336] In some embodiments, the direction of liquid spray by the spray mechanism through the filter is opposite to the direction of air flow through the filter, or

[000337] the filter and the filter self-cleaning device are located in the air intake section of the drying device between the switch and the moisture-absorbing and moisture-removing element, wherein the filter self-cleaning device comprises a sprayer, wherein the flow of the sprayed liquid should not be directed at the moisture-absorbing and moisture-removing element.

[000338] In some embodiments, the spray nozzle is located above the filter axis, or

[000339] The spray nozzle may be located on the air outlet side of the filter.

[000340] In some embodiments, the washing unit additionally comprises:

[000341] the fan and the heater are located in the moisture-removing passage, wherein the heater is located near the moisture-removing zone of the moisture-absorbing and moisture-removing element.

[000342] In some embodiments, the washing unit additionally comprises:

[000343] a heat exchanger located in the moisture-removing passage, on the air outlet side of the moisture-removing zone, wherein the heat exchanger comprises a ventilation passage connected to the moisture-removing zone and a water outlet pipe for draining condensate;

[000344] moreover

[000345] the heat exchanger comprises a refrigeration passage through which the refrigerant passes, and the outlet of the ventilation duct is connected to the air intake of the fan; or

[000346] the heat exchanger comprises a refrigeration passage through which the refrigerant passes, and the outlet of the ventilation passage of the heat exchanger is discharged to the outside of the washing unit; or

[000347] the fan comprises an air intake passage passing through the interior of the heat exchanger.

[000348] In some embodiments, the washing unit additionally comprises

[000349] a heat exchanger in the air outlet passage of a separate container or in the air intake section of a drying device for drying and reducing the temperature of the air flow leaving the separate container; wherein the moisture-removing passage is located before the moisture-removing zone and passes through the interior of the heat exchanger, which ensures heat exchange between the hot moist air in the air outlet passage of the container or in the air intake section of the drying device with the dry and cold air in the moisture-removing passage located before the moisture-removing zone.

[000350] In some embodiments, the washing containers comprise upper and lower tanks located one on top of the other. In this case, the drying device is located between the upper and lower tanks, above the upper tank or under the lower tank.

[000351] In some embodiments, the upper and lower wash tanks are located inside the washing unit; or

[000352] the upper tank may be located in the drying compartment and the lower tank may be located inside the washing compartment, or

[000353] The upper tank may be located in the washing compartment, and the lower tank in the drying compartment.

[000354] A method is proposed for operating a washing machine comprising a housing comprising a block of containers for laundry, a drying device and a filter assembly located between the drying device and the block of containers, wherein the filter assembly comprises a filter and a filter self-cleaning device; wherein the method includes

[000355] performing a drying operation to remove moisture from a single separate container connected to a drying device; wherein air exiting from the separate container is supplied to the drying device through a filter assembly; and

[000356] performing filter cleaning with the filter self-cleaning device.

[000357] In some embodiments, the washing device for self-cleaning the filter performs cleaning of the filter by spraying liquid, by blowing, by vibration, or by mechanical cleaning.

[000358] It should be understood that the embodiments described in this document are not limited in terms of design details and component arrangements solely by virtue of the descriptions and/or illustrations provided in the drawings or examples. The embodiments described in this document allow for various ways of implementing them by various means and methods. It is completely clear to a person skilled in the art that various changes and modifications can be made to the devices and systems described. It is also completely clear to a person skilled in the art that there are other embodiments in terms of the technical characteristics and methods of using the devices and systems described in this document. The technical descriptions and examples provided in this document are to be considered solely as examples. The full scope of the claims will be specified in the statements below and their equivalents.

Claims (24)

1. A washing unit (100, 700, 1300) comprising a container (730, 1302) for laundry and a dehumidifier (1100) which comprises a circulation fan (203, 1210) configured to direct humid air coming from the container (730, 1302) to a moisture absorption and removal device (206) configured to absorb moisture from the humid air, a regeneration fan (205, 1220) configured to direct air to remove moisture absorbed by the moisture absorption and removal device (206), and also to direct air to a condenser (40, 1230) configured to condense water from the incoming air; wherein the device (206) for absorbing and removing moisture is located near the circulation fan (203, 1210), the regeneration fan (205, 1220) and the condenser (40, 1230), wherein the device (206) for absorbing and removing moisture comprises a roller assembly (1900, 2062), in which at least on its lower part or on the side there is a working roller. 2. The washing unit (100, 700, 1300) according to claim 1, in which the circulation fan (203, 1210) and the condenser (40, 1230) are located near the regeneration fan (205, 1220) on different sides of it. 3. The washing unit (100, 700, 1300) according to claim 1, wherein the moisture absorption and removal device (206) is located in the same plane with at least one of the following: a circulation fan (203, 1210), a regeneration fan (205, 1220) and a condenser (40, 1230). 4. The washing unit (100, 700, 1300) according to claim 1, in which the circulation fan (203, 1210), the moisture absorption and removal device (206), the regeneration fan (205, 1220) and the condenser (40, 1230) are located in the same plane. 5. The washing unit (100, 700, 1300) according to claim 1, wherein two or more corresponding axes of rotation of the circulation fan (203, 1210), the roller assembly (1900, 2062) and the regeneration fan (205, 1220) in the moisture absorber (1100) are parallel to each other. 6. The washing unit (100, 700, 1300) according to claim 1, wherein the working roller comprises a block of auxiliary rollers (1940) located on the side of the roller assembly (1900, 2062) and contained in separate sockets in the lower casing (1160), in which one or more parts of the moisture absorber (1100) are located, wherein the axes of rotation of the auxiliary rollers (1940) are located parallel to the axis of rotation of the roller of the roller assembly (1900, 2062). 7. The washing unit (100, 700, 1300) according to claim 1, wherein the working roller (1900, 2062) comprises a block of vertical rollers (1944) located on the lower part of the roller assembly (1900, 2062) and distributed on the lower casing (1160), in which one or more parts of the moisture absorber (1100) are located, wherein the axes of rotation of the vertical rollers (1944) are located vertically with respect to the axis of rotation of the roller of the roller assembly (1900, 2062). 8. The washing unit (100, 700, 1300) according to claim 1, wherein one or more corresponding axes of rotation of the circulation fan (203, 1210), the roller unit (1900, 2062) and the regeneration fan (205, 1220) in the moisture absorber (1100) are located perpendicular to the axis of rotation of the container (730, 1302). 9. The washing unit (100, 700, 1300) according to claim 1, wherein one or more corresponding axes of rotation of the circulation fan (203, 1210), the roller unit (1900, 2062) and the regeneration fan (205, 1220) in the moisture absorber (1100) are located parallel to the axis of rotation of the container (730, 1302). 10. The washing unit (100, 700, 1300) according to claim 1, further comprising a lower casing (1160) in which zones are located that are configured to accommodate, respectively, two or more of the following: a circulation fan (203, 1210), a moisture absorption and removal device (206), a regeneration fan (205, 1220) and a condenser (40, 1230). 11. A washing unit (100, 700, 1300) according to claim 10, in which the lower casing (1160) is a single, non-detachable part. 12. The washing unit (100, 700, 1300) according to claim 1, wherein the moisture absorption and removal device (206) comprises a moisture absorption zone (1240) and a moisture removal zone (1250); the moisture absorption zone (1240) comprises at least a first part of a moisture absorption and removal device (206) for absorbing moisture from humid air from the circulation fan (203, 1210); the moisture-removing zone (1250) comprises a heating section (1150) located above the second part of the device (206) for absorbing and removing moisture near the regeneration fan (205, 1220). 13. The washing unit (100, 700, 1300) according to claim 12, wherein the moisture absorber (1100) comprises a moisture absorbing passage (520) in which the said moisture absorption zone (1240) is located and which is intended to direct air from the circulation fan (203, 1210), directing air from the container (730, 1302), into the moisture absorbing zone (1240). 14. The washing unit (100, 700, 1300) according to claim 13, in which the desiccant (1100) comprises a moisture-removing passage (540) in which the specified moisture-removing zone (1250) is located and which is designed to direct the air flow from the regeneration fan (205, 1220) to the condenser (40, 1230) to remove moisture from the air. 15. The washing unit (100, 700, 1300) according to claim 13, in which the heating section (1150) comprises a block of heating elements located near the air holes in the mesh filter. 16. The washing unit (100, 700, 1300) according to claim 15, in which the heating section (1150) has a fan-shaped device, and the diameter of the air holes decreases along the radius in the direction of the center of the fan-shaped device. 17. A washing unit (100, 700, 1300) according to claim 16, in which the block of heating elements is located next to the air holes and is offset along the radius in the direction of the center of the fan-shaped device. 18. A washing unit (100, 700, 1300) according to item 1, additionally comprising: an air outlet passage (2850) connected to the air outlet in the container; a filter (770) assembly located in the air outlet passage (2850) and containing a filter mesh (720) and a filter self-cleaning device (740) for cleaning the filter mesh (720). 19. The washing unit (100, 700, 1300) according to claim 1, wherein the desiccant (1100) comprises a spiral casing (1620) designed to cover and secure the circulation fan (203, 1210) to the lower casing (1100), in which one or more parts of the desiccant (1100) are located.