WO2021010373A1 - Dryer - Google Patents

Abstract

A drum-type washer-dryer 60 that is one example of a dryer comprises: a housing 1; a water tank 2 provided inside the housing 1; a drum 3 provided so as to be capable of rotating inside the water tank 2, the drum 3 accommodating to-be-dried articles; and a microwave irradiation unit 30 that irradiates the to-be-dried articles inside the drum 3 with microwaves. The housing 1 has an opening 19 provided in a front surface, and a door body 5 that opens and closes the opening 19. The water tank 2 has a water tank front part 2a having a water tank opening 2c that faces the opening 19, and a water tank rear part 2b rearward of the water tank front part 2a. A shield part for suppressing leakage of microwaves from the housing 1 is configured to include at least the door body 5, the opening 19, the water tank front part 2a, and a cover part 24 that covers the space between the opening 19 and the water tank front part 2a, and to furthermore include the water tank rear part 2b or the drum 3.

Description

Dryer

This disclosure relates to a dryer that dries objects to be dried such as clothing.

As a method for speeding up the drying performance of a clothes dryer or a washer / dryer, there is a method of using microwaves as a heat source for heating the moisture of clothes (see, for example, Patent Document 1). The washing machine with a high-frequency electromagnetic wave heating type dryer disclosed in Patent Document 1 has a metal surface on the inner surface of the body, the lower opening, and the upper opening to prevent leakage of the high-frequency electromagnetic wave and dry the high-frequency electromagnetic wave heating type. The drying parts of the machine are provided in the lower opening, and a metal surface is applied to the inner surface of the water storage tank to improve the heating efficiency, and air is blown using the air passage to improve the drying efficiency and moist air. Cool in a water tank, condense, and expel dry air.

Japanese Unexamined Patent Publication No. 2001-293281

When the dryer rotates the tank containing the object to be dried during the drying operation in order to improve the drying efficiency, vibration is generated as the tank rotates. Therefore, the dryer needs a technique for suppressing the leakage of electromagnetic waves even when the tank is rotating and vibrating.

The present disclosure solves the above-mentioned conventional problems, and provides a technique for suppressing leakage of electromagnetic waves when drying an object to be dried by irradiating it with electromagnetic waves in a dryer in which the tank rotates or vibrates. The purpose is.

The dryer in the present disclosure includes a housing, an outer tank provided inside the housing, a drum rotatably provided inside the outer tank and accommodating an object to be dried, and a microwave inside the drum. It is provided with a microwave irradiation unit that irradiates waves. The housing has an opening provided on the front surface and a door body for opening and closing the opening. The outer tank has an outer tank front portion having an outer tank opening facing the opening, and an outer tank rear portion behind the outer tank front portion. The shield portion for suppressing leakage of microwaves from the housing includes at least a door body, an opening, a front portion of the outer tank, and a cover portion that covers the space between the opening and the front portion of the outer tank. Including, and further including the rear part of the outer tank or the drum.

The dryer in the present disclosure includes a housing, an outer tank provided inside the housing, a drum rotatably provided inside the outer tank and accommodating an object to be dried, and a microwave inside the drum. It is provided with a microwave irradiation unit that irradiates waves. The housing has openings provided on the front or top surface. The outer tank has an outer tank front portion having an outer tank opening facing the opening, an outer tank rear portion rearward from the outer tank front portion, and an outer tank lid for opening and closing the outer tank opening. The shield portion for suppressing leakage of microwaves from the housing includes at least an outer tank lid, an outer tank front portion, and further includes an outer tank rear portion or a drum.

The dryer in the present disclosure includes a housing, an outer tank fixedly provided inside the housing, a drum rotatably provided inside the outer tank, and a drum for accommodating an object to be dried, and a drum is rotationally driven. It includes a drum drive unit, a vibration isolator that elastically supports the drum drive unit, and a microwave irradiation unit that irradiates a drying object in the drum with microwaves. The housing has an opening provided on the front surface and a door body for opening and closing the opening. The outer tank has an outer tank front portion having an outer tank opening facing the opening, and an outer tank rear portion behind the outer tank front portion. The drum drive unit has a drive motor, and the anti-vibration mechanism includes a motor support unit to which the drum drive unit is fixed, a damper provided between the motor support unit and the housing, and a flexible water sealing member. The bottom surface of the outer tank includes a motor support portion and a water-sealing member provided in a watertight manner. The shield portion for suppressing leakage of microwaves from the housing includes at least a door body, an opening, an outer tank front portion, and further includes an outer tank rear portion or a drum.

It should be noted that any combination of the above components and the conversion of the expression of the present disclosure between methods, devices, systems, etc. are also effective as aspects of the present disclosure.

According to the present disclosure, it is possible to provide a technique for suppressing leakage of electromagnetic waves when drying an object to be dried by irradiating it with electromagnetic waves even if the tank rotates or vibrates.

Vertical cross-sectional view schematically showing the configuration of the drum type washer-dryer according to the first embodiment. The figure which shows the structure of the shield part of the drum type washer-dryer which concerns on Embodiment 1. Sectional drawing of the main part of the connection part of the water tank front part and the water tank rear part of the drum type washer-dryer which concerns on Embodiment 1. Cross-sectional view of a main part of the end surface (cross section AA) of the connecting portion on the rear side of the water tank according to the first embodiment. Cross-sectional view of a main part of another example of the connecting portion between the front part of the water tank and the rear part of the water tank of the drum type washer-dryer according to the first embodiment. Cross-sectional view of a main part of still another example of the connecting portion between the front part of the water tank and the rear part of the water tank of the drum type washer-dryer according to the first embodiment. Longitudinal sectional view schematically showing the configuration of the drum type washer-dryer according to the second embodiment. The figure which shows the structure of the shield part of the structure of the drum type washer-dryer which concerns on Embodiment 2. Vertical cross-sectional view schematically showing the configuration of the drum type washer-dryer according to the third embodiment. The figure which shows the structure of the shield part of the drum type washer-dryer which concerns on Embodiment 3. Vertical cross-sectional view schematically showing the configuration of the drum type washer / dryer according to the fourth embodiment. The figure which shows the structure of the shield part of the drum type washer-dryer which concerns on Embodiment 4. Vertical cross-sectional view schematically showing the configuration of the vertical washer / dryer according to the fifth embodiment. The figure which shows the structure of the shield part of the vertical type washer-dryer which concerns on Embodiment 5. Vertical cross-sectional view schematically showing the configuration of the drum type washer-dryer according to the sixth embodiment. The figure which shows the structure of the shield part of the drum type washer-dryer which concerns on Embodiment 6. Vertical cross-sectional view schematically showing the configuration of the drum type washer / dryer according to the seventh embodiment. The figure which shows the structure of the shield part of the drum type washer-dryer which concerns on Embodiment 7.

Hereinafter, the embodiment will be described in detail with reference to the drawings. However, more detailed explanation than necessary may be omitted. For example, detailed explanations of already well-known matters or duplicate explanations for substantially the same configuration may be omitted.

It should be noted that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

(Embodiment 1)
FIG. 1 is a vertical cross-sectional view schematically showing the configuration of a drum-type washer-dryer according to the first embodiment of the dryer of the present disclosure. The drum-type washer-dryer 60 of the present embodiment has a function of washing and drying laundry such as clothes, and even as a washing machine that executes only the washing function, it is a dryer that executes only the drying function. However, it also functions as a washer / dryer that performs washing and drying functions.

The drum-type washer-dryer 60 has a function of irradiating the laundry in the drum with microwaves, which is a kind of electromagnetic waves. First, the basic configuration and operation of the drum-type washer-dryer 60 will be described, and then the shield portion for suppressing leakage of microwaves from the housing when the drum-type washer-dryer 60 is irradiated with microwaves. Details will be described.

The drum type washer / dryer 60 includes two tanks, a water tank 2 as an outer tank and a drum 3 as a rotary tank. The water tank 2 is formed in a bottomed cylindrical shape and stores washing water. The water tank 2 is swingably supported in the housing 1 (main body) by a damper 4 provided below the water tank 2. The drum 3 is formed in a bottomed cylindrical shape, and accommodates laundry such as clothes (also referred to as a "drying object" when referring to the drying function). The drum 3 is rotatably provided in the water tank 2 and is provided so that the rotation axis is horizontal. In another example, the drum 3 may be provided so that the rotation axis is inclined forward with respect to the horizontal, or the rotation axis may be provided so as to be vertical.

A drive motor 6a is attached to the bottom surface of the water tank 2 facing the back surface of the housing 1. The drive motor 6a rotates the drum 3 around the rotation axis in the forward direction and the reverse direction. The drum-type washer-dryer 60 performs stirring washing, rinsing, dehydration, and drying of the laundry contained in the drum 3 by the rotation of the drum 3 driven by the drive motor 6a.

An opening 19 and a door body 5 for opening and closing the opening 19 are provided at positions facing the opening ends of the drum 3 and the water tank 2 on the front surface of the housing 1. The user can put in and take out the laundry with respect to the drum 3 by opening the door body 5.

The water tank 2 has a water tank front portion 2a having a water tank opening 2c provided at a position facing the opening 19 of the housing 1 and a water tank rear portion 2b provided behind the water tank front portion 2a. An elastic tubular water sealing member 23 is provided so as to connect the edge of the water tank opening 2c of the water tank front portion 2a and the edge of the opening 19 over the entire circumference. When the user closes the door body 5, the water sealing member 23 is pressed by the door body 5 and elastically deformed, so that the watertightness of the water tank 2 with respect to the outside of the machine is ensured. The water tank front portion 2a may be a top surface portion of the water tank 2 formed in a bottomed cylindrical shape. In that case, the rear portion 2b of the water tank may be a side surface portion and a bottom surface portion of the cylinder. The water tank front portion 2a may include a portion in front of the side surface portion in addition to the top surface portion of the cylinder. In that case, the rear portion 2b of the water tank may be the remaining portion behind the side surface portion of the cylinder and the bottom surface portion. The rear portion 2b of the water tank may include a part of the side surface side of the top surface portion in addition to the side surface portion and the bottom surface portion of the water tank 2. In that case, the water tank front portion 2a may be the remaining portion of the top surface portion of the cylinder on the water tank opening 2c side. The water tank front portion 2a and the water tank rear portion 2b may be manufactured integrally, or may be manufactured separately, and the water tank 2 may be formed by connecting them. In the latter case, a water sealing member is similarly provided at the connecting portion between the water tank front portion 2a and the water tank rear portion 2b.

A water supply pipe 13 is connected to the upper part of the water tank 2. A water supply valve 12 is provided in the middle of the water supply pipe 13. The water supply valve 12 supplies water into the water tank 2 via the water supply pipe 13. A drainage pipe 11 is connected to the lowermost part of the water tank 2. A drain valve 10 is provided in the middle of the drain pipe 11. The drain valve 10 discharges the water in the water tank 2 to the outside of the machine via the drain pipe 11.

A damper 4 is provided below the water tank 2. The damper 4 supports the water tank 2 and damps the vibration of the water tank 2 generated due to the bias of the laundry in the drum 3 during dehydration or the like. A cloth amount detecting unit (not shown) is attached to the damper 4. The cloth amount detecting unit detects the amount of displacement in which the shaft of the damper 4 is displaced up and down due to a change in weight due to clothing or the like in the drum 3. The drum-type washer-dryer 60 detects the amount of clothes in the drum 3 based on the displacement amount detected by the cloth amount detecting unit.

The drum 3 has a drum front portion 3a having a drum opening 3c provided at a position facing the opening 19 of the housing 1, and a drum rear portion 3b provided behind the drum front portion 3a. The drum front portion 3a may be a top surface portion of the drum 3 formed in a bottomed cylindrical shape. In that case, the drum rear portion 3b may be a side surface portion and a bottom surface portion of the cylinder. The drum front portion 3a may include a portion in front of the side surface portion in addition to the top surface portion of the cylinder. In that case, the drum rear portion 3b may be the remaining portion behind the side surface portion of the cylinder and the bottom surface portion. The drum rear portion 3b may include a portion of the side surface side of the top surface portion in addition to the side surface portion and the bottom surface portion of the drum 3. In that case, the drum front portion 3a may be the remaining portion of the top surface portion of the cylinder on the drum opening 3c side. The drum front portion 3a and the drum rear portion 3b may be manufactured integrally, or may be manufactured separately, and the drum 3 may be formed by connecting them.

The drum-type washer-dryer 60 includes a circulation air passage 7 for circulating air in the water tank 2 and the drum 3, and a microwave irradiation unit 30 for irradiating the object to be dried in the drum 3 with microwaves.

The microwave irradiation unit 30 constituting the heating unit for heating the object to be dried drums 3 microwaves from the microwave irradiation port 32 provided between the water tank opening 2c of the water tank 2 and the opening 19 of the housing 1. Irradiates the inside to heat the water contained in the object to be dried in the drum 3. The microwave irradiation unit 30 may be a microwave oscillator such as a magnetron, and oscillates an electromagnetic wave having a frequency in the 2.45 GHz band, for example. The electromagnetic wave is not limited to the 2.45 GHz band assigned as the ISM (Industry Science Medical) band, and may be an electromagnetic wave having a frequency such as the 915 MHz band similarly assigned. The microwave emitted from the microwave irradiation unit 30 is irradiated into the rotating drum 3 through the waveguide and the microwave irradiation port 32. Of the microwaves radiated into the drum 3, a part of the microwaves that are not absorbed by the moisture contained in the object to be dried is reflected from the drum 3 through the microwave irradiation port 32 and is the microwave irradiation unit 30. Return to. In order to reflect a part or all of the reflected wave that is reflected from the drum 3 and travels in the direction of returning to the microwave irradiation unit 30, and to be incident on the drum 3 again together with the microwave emitted from the microwave irradiation unit 30. Reflection portion may be provided. As a result, energy loss can be reduced and the drying time can be shortened.

The circulation air passage 7 is configured as an air circulation air passage for drying the object to be dried in the drying step. The air circulation air passage includes a water tank 2 and a drum 3. The circulation air passage 7 is provided by connecting an air outlet 8 (drying air outlet) provided on the bottom surface of the water tank 2 and an outlet 9 (drying air outlet) provided in front of the side surface of the water tank 2. Has been done.

The circulation air passage 7 is provided with a lint filter 22, a dehumidifying unit 21, a heater 17, and a blower fan 16 from the discharge port 9 side. The lint filter 22 is a filter having a nylon mesh, and captures lint contained in the air flowing through the circulation air passage 7. The dehumidifying unit 21 dehumidifies the air flowing through the circulation air passage 7. The dehumidifying unit 21 may be either a water-cooled type or an air-cooled type. The heater 17 heats the air flowing through the circulation air passage 7. The dehumidifying section 21 and the heater 17 may be composed of an evaporation section and a condensing section of the heat pump device. The blower fan 16 circulates the air in the water tank 2 and the drum 3 in the circulation air passage 7.

The heater 17 and the microwave irradiation unit 30 constitute a heating unit for heating the object to be dried, and are energized to both or one of them at the same time. As a method of heating the object to be dried by the heating unit, a method of directly heating by microwaves, a method of heating the air circulating by a heater or the like, or a method of indirectly heating by heating the inner wall of the drum 3 There are no particular restrictions. If there is a high possibility that sparks will occur due to metal such as buttons and fasteners attached to the clothes to be dried, the output of microwaves emitted from the microwave irradiation unit 30 into the drum 3 will be reduced or stopped. Then, it is switched to the drying by the heater 17.

The inflow temperature detection unit 18 is provided in the circulation air passage 7. The inflow temperature detection unit 18 detects the temperature of the air flowing into the drum 3. The inflow temperature detection unit 18 is composed of, for example, a thermistor or the like.

The control device 20 is provided in the housing 1. The control device 20 controls the blower fan 16, the heater 17, the microwave irradiation unit 30, and the like. The control device 20 also controls the drive motor 6a, the water supply valve 12, the drain valve 10, and the like, and sequentially executes the washing, rinsing, dehydrating, and drying steps.

Next, the flow of dry air will be explained. When the drum 3 is irradiated with microwaves, the water contained in the object to be dried is heated and evaporated. When the blower fan 16 is driven, the air that has become humid due to the evaporated water flows into the circulation air passage 7 through the discharge port 9 provided in the water tank 2. The air that has flowed into the circulation air passage 7 is sent to the dehumidifying section 21 and the heater 17 by the blower fan 16. The air passing through the dehumidifying section 21 is cooled and dehumidified. The cooled and dried air is heated by the heater 17.

The air that has passed through the heater 17 passes through the outlet 8 and is blown out into the drum 3 again. A clothes dryer having no washing function is not provided with a water tank 2, a water supply valve 12, a water supply pipe 13, a drain valve 10, and a drain pipe 11 for storing washing water. The connection between the rotating drum 3 and the circulation air passage 7 is configured so that the drum 3 slides on a seal member such as felt.

In the drum-type washer-dryer 60 of the present embodiment, microwaves are irradiated into the drum 3, so that the intensity of electromagnetic waves leaking to the outside of the drum-type washer-dryer 60 is a standard determined in the area where it is used. Must be configured to be less than or equal to the value. Therefore, the drum-type washer-dryer 60 of the present embodiment is provided with a shield portion for suppressing leakage of electromagnetic waves irradiated from the microwave irradiation port 32.

As a standard for leaked electromagnetic waves, for example, the Japanese Industrial Standards "JIS" that regulates microwave ovens with a rated high frequency output of 2 kW or less that heat foods with electromagnetic waves (microwaves) with a frequency of 2.45 GHz and microwave ovens with additional devices. There is "C9250". In 5.8 of the same standard, "When the power density of the leaked radio wave measured by the power density test of the leaked radio wave specified in 8.2.12 of the same standard is (1) when the door is closed, 1 mW / cm ² or less, (2) 5 mW / cm ² or less when the door is opened and fixed to the maximum position immediately before the oscillation stop device of the oscillation tube operates, (3) Main oscillation It must be 5 mW / cm ² or less with the oscillation stop device other than the stop device constrained. " In addition, the attached table 8 of the notification regarding the interpretation of the "Ministerial Ordinance that sets the technical standards for electrical appliances" that sets the technical standards specified by the Ordinance of the Ministry of Economy, Trade and Industry, which is stipulated in Article 8, Paragraph 1 of the Electrical Appliance and Material Safety Law Section 2 (95) has almost the same contents. For the washer / dryer, the same standards as for the microwave oven are considered to be appropriate.

In addition, the WHO (World Health Organization) recommends that the guidelines of the International Commission on Non-Ionizing Radiation Protection (ICNIRP) prepared on the basis of scientific evidence by experts in each country be adopted as the exposure limit for human body protection. There is. This guideline stipulates that the exposure limit is 0.08 W / kg (1 mW / cm ² ). The international standard "IEC62233" established by the International Electrotechnical Commission (IEC) and the Japanese Industrial Standard "JIS 1912" established based on it include the measurement of electromagnetic fields related to human exposure from household electrical equipment and similar equipment. The method is specified. In the measurement method specified in the standard, the electromagnetic field is measured as a ratio to the exposure limit value by weighting the signal of the sensor that detects the electromagnetic field, and the exposure limit value specified in the ICNIRP guideline. If it does not exceed, it is judged that the guideline of ICNIRP is met. The shield portion is configured to comply with these standards.

In the microwave oven, the storage chamber in which the object to be heated is housed is fixed, and large vibration does not occur during microwave irradiation. However, in the drum-type washer-dryer 60 of the present embodiment, the drying efficiency is improved. As a result, the drum 3 rotates during drying, and the drum 3 and the water tank 2 vibrate. Therefore, the shield portion of the drum-type washer-dryer 60 of the present embodiment can suppress microwaves leaking from the gap even if microwaves are irradiated while the drum 3 and the water tank 2 are vibrating. Has a structure.

FIG. 2 shows the configuration of the shield portion of the drum-type washer-dryer 60 according to the first embodiment. FIG. 2 is a diagram in which a part of the configuration of the drum-type washer-dryer 60 according to the first embodiment shown in FIG. 1 is omitted. In FIG. 2, the members constituting the shield portion are shaded. In the drum-type washer-dryer 60 of the first embodiment, the shield portion includes a door body 5, an opening 19, a water tank front portion 2a, a cover portion 24, and a water tank rear portion 2b. The cover portion 24 is a member that covers the space between the opening 19 and the front portion 2a of the water tank.

The door body 5, the opening 19, the water tank front part 2a, and the water tank rear part 2b contain a conductive material such as a metal capable of reflecting or absorbing microwaves. The door body 5, the opening 19, the water tank front portion 2a, or the water tank rear portion 2b may be entirely formed of an electromagnetic wave shielding material such as a conductive material. The door body 5, the opening 19, the water tank front portion 2a, or the water tank rear portion 2b may be formed of a material such as resin, and a plating layer of a conductive material may be provided on the inner surface or the outer surface. The door body 5, the opening 19, the water tank front portion 2a, or the water tank rear portion 2b may be formed of a material such as resin, and a layer of an electromagnetic wave shielding material may be provided on the inner surface, the outer surface, or the inside.

In the present embodiment, the opening 19 of the housing 1 and the water tank front portion 2a of the water tank 2 are separated, watertightness is ensured by the water sealing member 23, and the space between them is formed of an electromagnetic wave shielding material. It is covered by the covered cover portion 24. That is, when the cover portion 24 having conductivity and flexibility is provided, the drum 3 rotates and vibrates, and even if the water tank 2 vibrates due to this, when the object to be dried is dried by irradiating electromagnetic waves. It is possible to provide a drum-type washer-dryer 60 capable of suppressing leakage of electromagnetic waves.

The cover portion 24 is made of a flexible face material. As a result, the opening 19 and the door body 5 of the housing 1 are separated from the water tank 2 that vibrates due to the rotation of the drum 3, so that the vibration of the water tank 2 is difficult to transmit. Therefore, it is possible to prevent the space between the door body 5 and the opening 19 from expanding due to vibration and the microwave from leaking from the gap. Further, since the microwave irradiation unit 30 can be installed in the housing 1 having a small vibration instead of being installed in the water tank 2 or the drum 3 having a large vibration, the microwave oscillator such as a magnetron can be protected from the vibration. It is possible to improve the oscillation performance and durability of microwaves. Of the configurations of the microwave irradiation unit 30, some configurations such as a microwave oscillator and a waveguide may be installed in the housing 1.

The cover portion 24 is made of a flexible face material. As a result, processing and mounting can be facilitated, so that the manufacturing cost can be reduced. One end of the face material is fixed to the opening 19 of the housing 1, and the other end is fixed to the front portion 2a of the water tank 2. The face material may be fixed by another face material such as a belt, or may be fixed by a wire material such as a wire. In this case, the face material may be fixed by pressing the face material from the outside of the face material with a belt, a wire, or the like. As a result, the configuration for fixing the face material can be simplified and the manufacturing cost can be reduced. Further, the face material may be fixed by forming the end of the face material in a bag shape and passing a belt, a wire or the like through the bag. As a result, the work for fixing the face material can be simplified, the manufacturing cost can be reduced, and the stability of the contacts can be improved.

The cover portion 24 may be formed in a tubular shape by using an elastic material. In this case, the face material constituting the cover portion 24 may be a conductive cloth or mesh material. Further, the face material may be formed by knitting a string-shaped cloth. As a result, the vibration of the water tank 2 can be made difficult to be transmitted by the opening 19 of the housing 1 and the door body 5. In addition, since processing and mounting can be facilitated, the manufacturing cost can be reduced.

The cover portion 24 may be formed in a bellows tubular shape or a mesh shape depending on the face material. In this case, the face material constituting the cover portion 24 may be made of a conductive material having no elasticity. Even if the material does not have elasticity, it can be expanded and contracted by forming it in a bellows tubular shape or a mesh shape, so that the vibration of the water tank 2 is transmitted by the opening 19 of the housing 1 and the door body 5. It can be made difficult. Further, since the choice of the face material that can be used as the cover portion 24 can be expanded, the manufacturing cost can be reduced. In this case as well, the face material may be a conductive cloth or a mesh material, or may be formed by knitting a string-shaped cloth.

As shown in FIG. 1, the cover portion 24 may be provided on the outside of the water sealing member 23. When a chlorine-based bleaching agent is used during washing, if the washing water containing chlorine adheres to the cover portion 24, the conductive material may be corroded by chlorine. However, by providing the cover portion 24 on the outside of the water sealing member 23, it is possible to prevent moisture from adhering to the cover portion 24, so that the electromagnetic wave shielding performance and durability of the cover portion 24 can be suppressed from deteriorating. Can be done. Further, since the cover portion 24 can be easily incorporated, the manufacturing cost can be reduced.

In another example, the cover portion 24 may be provided inside the water sealing member 23. As a result, the exposure of electromagnetic waves to the water sealing member 23 can be suppressed, so that the watertightness, airtightness, and durability of the water sealing member 23 can be suppressed from being lowered. For example, it is possible to reduce the situation where electromagnetic waves are concentrated on a specific portion of the water sealing member 23 and abnormal overheating occurs.

In yet another example, the cover portion 24 may also be used as the water sealing member 23. In this case, the face material constituting the cover portion 24 may be formed of a conductive elastomer. As a result, the drum-type washer-dryer 60 of the present embodiment can be manufactured by incorporating only the water-sealing member 23 as in the conventional drum-type washer-dryer, so that the number of parts and the work man-hours can be reduced. The manufacturing cost can be reduced.

In the configuration of the water tank 2, the water tank front part 2a and the water tank rear part 2b may be integrally formed or may be manufactured separately and connected. When the shield portion includes the rear portion 2b of the water tank as in the present embodiment, the entire water tank 2 may be formed of a conductive material, and the configuration of the drum type washer-dryer 60 can be simplified. The cost can be reduced.

When the front part 2a of the water tank and the rear part 2b of the water tank are manufactured and connected separately, it is necessary to suppress the leakage of microwaves while ensuring the watertightness of the connecting part between the front part 2a of the water tank and the rear part 2b of the water tank. Therefore, the water tank 2 is fixed by sandwiching the waterproof member and the conductive member between the water tank front portion 2a and the water tank rear portion 2b. With this configuration, leakage of electromagnetic waves can be suppressed while ensuring watertightness.

FIG. 3 is a cross-sectional view of a main part of the connecting portion between the water tank front portion 2a and the water tank rear portion 2b of the drum-type washer-dryer 60 according to the first embodiment. In this figure, the rear portion 2b of the water tank is the main body of the water tank forming the side surface portion and the bottom surface portion of the cylinder, and the front portion 2a of the water tank is the water tank cover forming the top surface portion of the cylinder. In the connecting portion between the water tank front portion 2a and the water tank rear portion 2b, the waterproof member accommodating portion 49 and the conductive member accommodating portion 50 are provided on the end surface 47 of the water tank rear side connecting portion. The waterproof member accommodating portion 49 accommodates the waterproof member 51, and the conductive member accommodating portion 50 accommodates the conductive member 52. The position of the conductive member accommodating portion 50 is on the outer peripheral side of the waterproof member accommodating portion 49 with respect to the rotation axis of the drum 3.

On the other hand, in the connecting portion between the front portion 2a of the water tank and the rear portion 2b of the water tank, the end surface 48 of the connecting portion on the front side of the water tank has a waterproof member contact portion 53 that contacts the waterproof member 51 and a conductive member that contacts the conductive member 52. A contact portion 54 is provided.

FIG. 4 is a cross-sectional view of a main part of the end surface (cross-section AA) of the connecting portion on the rear side of the water tank. The waterproof member 51 uses a substantially annular packing or sealing material such as an O-ring. As the conductive member 52, for example, a substantially annular conductive rubber or a metal-plated conductive cloth is used. It is desirable that the waterproof member 51 and the conductive member 52 have a continuous substantially annular shape, but if the effect of preventing water and microwave leakage can be ensured, the waterproof member 51 and the conductive member 52 are arranged in a discontinuous substantially annular shape on the end surface 47 of the connecting portion on the rear side of the water tank. It may have been.

FIG. 5 is a cross-sectional view of a main part of another example of the connecting portion between the water tank front portion 2a and the water tank rear portion 2b of the drum-type washer-dryer 60 according to the first embodiment. In the example of this figure, the waterproof member accommodating portion 49 and the conductive member accommodating portion 50 are integrated, and the conductive member 52 is provided on the outer peripheral side of the waterproof member 51 so as to be in close contact with the waterproof member 51. ing. As a result, the structure of the connecting portion between the water tank front portion 2a and the water tank rear portion 2b can be reduced.

FIG. 6 is a cross-sectional view of a main part of still another example of the connecting portion between the water tank front portion 2a and the water tank rear portion 2b of the drum type washer-dryer 60 according to the first embodiment. In the example of this figure, the waterproof member accommodating portion 49 and the conductive member accommodating portion 50 are integrated, and the end surface thereof is smooth. In the water tank front side connecting portion end surface 48, the waterproof member contact portion 53 projects rearward from the water tank rear side connecting portion end surface 47. The conductive member 52 is provided on the outer peripheral side of the waterproof member 51 so as to be in close contact with the waterproof member 51. As a result, it is not necessary to form a recess in the metal water tank rear side connecting portion end surface 47, so that the molding of the water tank rear side connecting portion end surface 47 can be facilitated and the manufacturing cost can be reduced.

In the examples shown in FIGS. 4 to 6, since the conductive member 52 is provided on the outside of the waterproof member 51, it is possible to prevent moisture from adhering to the conductive member 52 as in the case of the cover portion 24. For example, when a chlorine-based bleaching agent is used during washing, if the washing water containing chlorine adheres to the cover portion 24, the conductive material may be corroded by chlorine. However, according to this configuration, it is possible to prevent moisture from adhering to the conductive member 52, so that it is possible to suppress deterioration of the electromagnetic wave shielding performance and durability of the conductive member 52.

In another example, the conductive member 52 may be provided inside the waterproof member 51. As a result, the exposure of electromagnetic waves to the waterproof member 51 can be suppressed, so that the watertightness and durability of the waterproof member 51 can be suppressed from being lowered.

In yet another example, the conductive member 52 and the waterproof member 51 may be used in combination. In this case, the member having both the functions of the conductive member 52 and the waterproof member 51 may be formed of a conductive elastomer. As a result, the number of parts can be reduced and the manufacturing cost can be reduced.

In the cover portion 24 and the connecting portion between the water tank front portion 2a and the water tank rear portion 2b, a gap may be generated due to a dimensional error, vibration, or the like as long as the gap is such that microwaves do not leak. The cover portion 24 or the connecting portion between the water tank front portion 2a and the water tank rear portion 2b may be fixed by screws or the like at intervals such that microwaves do not leak.

As described above, in the drum type washer / dryer 60 of the first embodiment, the shield portion for suppressing leakage of microwaves from the housing 1 is at least the door body 5, the opening 19, and the front of the water tank. A portion 2a, a cover portion 24, and a water tank rear portion 2b are included. With this configuration, even if the water tank 2 vibrates, leakage of electromagnetic waves can be suppressed.

Further, since the shield portion includes the rear portion 2b of the water tank, the water tank 2 may be entirely formed of a conductive material. As a result, the configuration of the drum-type washer-dryer 60 can be simplified, so that the manufacturing cost can be reduced.

Further, the water tank 2 may be configured so as to sandwich and fix a waterproof member and a conductive member between the water tank front portion 2a and the water tank rear portion 2b. As a result, leakage of electromagnetic waves can be suppressed while ensuring watertightness of the water tank 2.

Further, the cover portion 24 may be formed in a tubular shape with a face material having conductivity and flexibility. As a result, the manufacturing cost of the drum-type washer-dryer 60 can be reduced.

Further, the cover portion 24 may be formed in a bellows tubular shape with a face material having conductivity. As a result, the manufacturing cost of the drum-type washer-dryer 60 can be reduced.

Further, the cover portion 24 may be provided at least on either the outside or the inside of the water sealing member 23. That is, by providing the cover portion 24 on the outside of the water sealing member 23, it is possible to suppress deterioration of the electromagnetic wave shielding performance and durability of the cover portion 24. Further, by providing the cover portion 24 inside the water sealing member 23, it is possible to prevent the water sealing member 23 from being deteriorated in watertightness, airtightness and durability. Further, the cover portion 24 may also be used as the water sealing member 23. As a result, the manufacturing cost of the drum-type washer-dryer 60 can be reduced.

Further, the face material constituting the cover portion 24 may be formed of a conductive cloth or mesh material. As a result, the manufacturing cost of the drum-type washer-dryer 60 can be reduced.

Further, the face material constituting the cover portion 24 may be formed by knitting a string-shaped cloth. As a result, the manufacturing cost of the drum-type washer-dryer 60 can be reduced.

Further, the face material constituting the cover portion 24 may be formed of a conductive elastomer. As a result, the cover portion 24 can also be used as the water sealing member 23.

(Embodiment 2)
FIG. 7 is a vertical cross-sectional view schematically showing the configuration of the drum type washer-dryer according to the second embodiment of the dryer of the present disclosure. The drum-type washer-dryer 60 according to the second embodiment includes a choke portion 25 in addition to the configuration of the drum-type washer-dryer 60 according to the first embodiment shown in FIG. Other configurations and operations are the same as those in the first embodiment. The points different from the first embodiment will be mainly described.

FIG. 8 shows the configuration of the shield portion of the drum type washer-dryer 60 according to the second embodiment. FIG. 8 is a diagram in which a part of the configuration of the drum-type washer-dryer 60 according to the second embodiment shown in FIG. 7 is omitted. In FIG. 8, the members constituting the shield portion are shaded. In the drum-type washer-dryer 60 of the second embodiment, the shield portion includes a door body 5, an opening 19, a water tank front portion 2a, a cover portion 24, and a drum 3.

The drum 3 contains a conductive material such as a metal capable of reflecting or absorbing microwaves. The drum 3 may be entirely formed of an electromagnetic wave shielding material such as a conductive material. The drum 3 may be made of a material such as resin, and a plating layer of a conductive material may be provided on the inner surface or the outer surface. The drum 3 may be made of a material such as resin, and may be provided with a layer of an electromagnetic wave shielding material on the inner surface, the outer surface, or the inside. The rear portion 3b of the drum is provided with a large number of holes through which water and air can pass, and these holes are formed in a size such that microwaves do not leak.

In the drum-type washer-dryer 60 of the second embodiment, unlike the drum-type washer-dryer 60 of the first embodiment, the shield portion is formed by the drum 3 instead of the water tank rear portion 2b, so that the water tank front portion 2a and the drum front portion are formed. There is a gap between it and 3a. Therefore, in order to prevent microwaves from leaking from this gap, a gap shield portion is provided. As an example of the gap shield portion, there is a choke structure which is a non-contact type microwave shield. For example, a choke portion 25 is formed between the water tank front portion 2a and the drum front portion 3a. The choke portion 25 may be provided on either the water tank front portion 2a or the drum front portion 3a. As the structure of the choke portion 25, it is necessary to consider that the drum 3 rotates, but any choke structure known in a technical field such as a microwave oven can be adopted.

For example, the choke structure may be composed of a plurality of chokes. According to the plurality of chokes, the leakage of microwaves can be suppressed in a plurality of stages, and the performance of preventing the leakage is improved. Further, the plurality of chokes may have different dimensions or shapes of each choke, and may be composed of, for example, stepped chokes.

In the case of the drum-type washer-dryer 60, the amount and weight of the object to be dried vary, and the weight changes between the initial stage and the end of the drying operation. Then, during the drying operation, the drum 3 rotates and vibrates, and the size of the gap between the water tank front portion 2a and the drum front portion 3a constituting the choke portion 25 may change. In addition, due to the structure, dimensional variation during manufacturing is unavoidable. Furthermore, the microwave frequency may change depending on the operating conditions. In devising the dimensions or shape of the step choke, dimensional changes during operation and manufacturing variations may be taken into consideration. Further, the case where the frequency of the microwave changes depending on the operating condition may be considered. Therefore, according to the step choke, the performance of preventing the leakage of microwaves is further improved. As described above, in the drum type washer-dryer 60, the leakage prevention structure by a plurality of stages is extremely effective.

Further, the choke structure may be configured by filling at least a part of the groove space that generates the reflected wave with resin. As a result, the choke structure can be made thinner or smaller, so that the size of the gap between the water tank front portion 2a and the drum front portion 3a constituting the choke portion 25 can be reduced, and the volume of the drum 3 can be reduced by the choke portion 25. Can be suppressed.

Note that the gap shield portion may be provided with an absorption type microwave shield such as a dielectric instead of the reflection type microwave shield such as a choke structure. In addition, a non-contact type microwave shield of any type may be provided as a gap shield portion.

Further, the gap shield portion may be a contact type microwave shield. For example, it may be a point contact microwave shield such as a ball bearing, or a line contact microwave shield such as a rolling bearing. In this case, the contact interval may be configured to be half or less of the wavelength of the microwave to be shielded. As a result, the leakage of microwaves can be further suppressed. Further, the gap shield portion may be a surface contact microwave shield such as a slide bearing. In this case, a flexible microwave shield may be provided as the gap shield portion. As a result, even if the size of the gap changes during the rotation of the drum 3, the leakage of microwaves can be suppressed. A conductive lubricant may be used as the lubricating oil for the bearing. As a result, the leakage of microwaves can be further suppressed.

Further, the gap shield portion may include a plurality of microwave shields. In this case, the gap shield portion may include only the contact type microwave shield, may include only the non-contact type microwave shield, or may include the contact type microwave shield and the non-contact type microwave shield. Both may be included. Further, each microwave shield may be a reflection type microwave shield or an absorption type microwave shield.

When using a plurality of microwave shields, it is preferable that the innermost gap shield portion is a reflective microwave shield. As a result, even when an absorption-type microwave shield is provided as the outer gap shield portion, it is possible to prevent the microwave shield from being damaged or deteriorated by being heated by the microwave. The outer gap shield portion may be a reflection type microwave shield or an absorption type microwave shield.

As described above, in the drum type washer / dryer 60 of the second embodiment, the shield portion for suppressing the leakage of microwaves from the housing 1 is at least the door body 5, the opening 19, and the front of the water tank. The portion 2a, the cover portion 24, and the drum 3 are included. With this configuration, even if the drum 3 rotates and the water tank 2 vibrates, the leakage of electromagnetic waves can be suppressed.

Further, the drum 3 may be formed entirely of a conductive material, and the shield portion may be configured to include a gap shield portion formed between the drum front portion 3a and the water tank front portion 2a. The gap shield portion may be formed of a choke structure (choke portion 25) or a bearing. As a result, the water tank 2 can be formed of resin or the like. That is, in the conventional product, the drum 3 usually formed of metal is used as the shield portion, and the water tank 2 can be formed of an inexpensive material such as resin, so that the manufacturing cost of the drum type washer-dryer 60 can be reduced. Can be done.

Further, the choke portion 25 may be configured to include at least one of a plurality of chokes or a stepped choke. As a result, the performance of suppressing the leakage of electromagnetic waves is improved.

Further, the choke portion 25 may be configured by filling at least a part of the groove space with resin. As a result, the choke portion 25 can be made thinner or smaller.

(Embodiment 3)
FIG. 9 is a vertical cross-sectional view schematically showing the configuration of the drum type washer-dryer according to the third embodiment of the dryer of the present disclosure. The drum-type washer-dryer 60 according to the third embodiment is provided with a water tank lid 15 by omitting the cover portion 24 as compared with the drum-type washer-dryer 60 according to the first embodiment shown in FIG. The water tank lid 15 is a lid of the water tank 2 which is an outer tank, and is an example of the outer tank lid. Other configurations and operations are the same as those in the first embodiment. The points different from the first embodiment will be mainly described.

The water tank lid 15 is provided in the water tank opening 2c of the water tank 2. Although not shown, the water tank lid 15 may be configured to open and close in conjunction with the opening and closing of the door body 5. For example, a link mechanism for interlocking the connection portion between the water tank lid 15 and the door body 5 is required, but the user can put the laundry in and out of the drum 3 simply by opening the door body 5. Because it can be used, usability is improved.

An elastic tubular water sealing member 23 is provided on the opening edge of the water tank opening 2c so that the water tank lid 15 is in close contact with the entire circumference. When the user closes the water tank lid 15, the water sealing member 23 is pressed by the water tank lid 15 and elastically deformed, so that the watertightness of the water tank 2 with respect to the outside of the machine is ensured.

FIG. 10 shows the configuration of the shield portion of the drum type washer-dryer 60 according to the third embodiment. FIG. 10 is a diagram in which a part of the configuration of the drum-type washer-dryer 60 according to the third embodiment shown in FIG. 9 is omitted. In FIG. 10, the members constituting the shield portion are shaded. In the drum-type washer-dryer 60 of the third embodiment, the shield portion includes the water tank lid 15, the water tank front part 2a including the water tank opening 2c, and the water tank rear part 2b.

The water tank lid 15, the water tank front part 2a, and the water tank rear part 2b contain a conductive material such as a metal capable of reflecting or absorbing microwaves. The water tank lid 15, the water tank front portion 2a, or the water tank rear portion 2b may be entirely formed of an electromagnetic wave shielding material such as a conductive material. The water tank lid 15, the water tank front portion 2a, or the water tank rear portion 2b may be formed of a material such as resin, and a plating layer of a conductive material may be provided on the inner surface or the outer surface. The water tank lid 15, the water tank front portion 2a, or the water tank rear portion 2b may be formed of a material such as resin, and a layer of an electromagnetic wave shielding material may be provided on the inner surface, the outer surface, or the inside.

In the present embodiment, the opening 19 of the housing 1 and the water tank front portion 2a of the water tank 2 are separated, a water tank lid 15 is provided on the water tank front portion 2a, and the water tank 2 is watertightened by a water sealing member 23. To be secured. As a result, the opening 19 and the door body 5 of the housing 1 are separated from the water tank 2 that vibrates due to the rotation of the drum 3, so that the vibration of the water tank 2 is difficult to transmit. Further, the housing 1, the opening 19 and the door body 5 do not require a configuration for preventing the leakage of microwaves. That is, with this configuration, it is possible to provide a drum-type washer-dryer 60 capable of suppressing leakage of electromagnetic waves even if the drum 3 rotates and the water tank 2 vibrates. In the present embodiment, since it is not necessary to consider the leakage of microwaves from the gap between the vibrating part and the non-vibrating part, the drum type washer-dryer 60 capable of suppressing the leakage of electromagnetic waves is manufactured at low cost. can do.

Even in the water tank lid 15, if the gap is such that microwaves do not leak, a gap may occur due to dimensional error, vibration, or the like.

The door body 5 of the housing 1 does not necessarily have to be provided. The opening 19 of the housing 1 may be configured so that the vibration of the water tank 2 does not adversely affect the user. Further, instead of the water tank lid 15 provided in the water tank opening 2c, a door body may be provided in the drum opening 3c of the drum 3. In this case, the microwave may be irradiated into the drum 3 through the inside of the rotation shaft of the drum 3, and the entire drum 3 including the door body provided in the drum opening 3c may form the shield portion. At this time, since the door body provided in the drum opening 3c rotates together with the drum 3, it is conceivable that the opening / closing direction of the door body will be different when the rotation is stopped, and the usability of the user will be deteriorated. In order to prevent this, it is desirable that the control device 20 is configured so that the drum 3 is stopped rotating at a predetermined position and the opening / closing direction of the door body at that time is substantially uniform.

As described above, in the drum-type washer-dryer 60 of the third embodiment, the shield portion for suppressing leakage of microwaves from the housing is at least the water tank lid 15, the water tank front part 2a, and the water tank rear part. It is configured to include 2b. With this configuration, even if the water tank 2 vibrates, leakage of electromagnetic waves can be suppressed, and the drum-type washer-dryer 60 can be manufactured at low cost.

Further, the water tank lid 15 may be configured to open and close in conjunction with the opening and closing of the door body 5. As a result, the usability of the user is improved.

(Embodiment 4)
FIG. 11 is a vertical cross-sectional view schematically showing the configuration of the drum-type washer-dryer according to the fourth embodiment of the dryer of the present disclosure. The drum-type washer-dryer 60 according to the fourth embodiment is provided with a water tank lid 15 by omitting the cover portion 24 as compared with the configuration of the drum-type washer-dryer 60 according to the second embodiment shown in FIG. .. Alternatively, in addition to the configuration of the drum-type washer-dryer 60 according to the third embodiment shown in FIG. 9, a choke portion 25 is provided. Other configurations and operations are the same as those in the first to third embodiments. The points different from the first to third embodiments will be mainly described.

FIG. 12 shows the configuration of the shield portion of the drum type washer-dryer 60 according to the fourth embodiment. FIG. 12 is a diagram in which a part of the configuration of the drum-type washer-dryer 60 according to the fourth embodiment shown in FIG. 11 is omitted. In FIG. 12, the members constituting the shield portion are shaded. In the drum-type washer-dryer 60 of the fourth embodiment, the shield portion includes the water tank lid 15, the water tank front portion 2a, and the drum 3.

The drum 3 contains a conductive material such as a metal capable of reflecting or absorbing microwaves. The drum 3 may be entirely formed of an electromagnetic wave shielding material such as a conductive material. The drum 3 may be made of a material such as resin, and a plating layer of a conductive material may be provided on the inner surface or the outer surface. The drum 3 may be made of a material such as resin, and may be provided with a layer of an electromagnetic wave shielding material on the inner surface, the outer surface, or the inside. The rear portion 3b of the drum is provided with a large number of holes through which water and air can pass, and these holes are formed in a size such that microwaves do not leak.

In the drum-type washer-dryer 60 of the fourth embodiment, unlike the drum-type washer-dryer 60 of the third embodiment, the shield portion is formed by the drum 3 instead of the water tank rear portion 2b, so that the water tank front portion 2a and the drum front portion are formed. There is a gap between it and 3a. Therefore, in order to prevent microwaves from leaking from this gap, a gap shield portion is provided. As an example of the gap shield portion, there is a choke structure which is a non-contact type microwave shield. For example, a choke portion 25 is formed between the water tank front portion 2a and the drum front portion 3a. As the structure of the choke portion 25, any choke structure known in the technical field such as a microwave oven can be adopted. The details of the gap shield portion are the same as those in the second embodiment.

As described above, in the drum-type washer-dryer 60 of the fourth embodiment, the shield portion for suppressing leakage of microwaves from the housing is at least the water tank lid 15, the water tank front portion 2a, and the drum 3. Consists of including. With this configuration, even if the water tank 2 vibrates, leakage of electromagnetic waves can be suppressed.

Further, in the conventional product, the drum 3 usually formed of metal is used as the shield portion, and the water tank 2 can be formed of an inexpensive material such as resin, so that the manufacturing cost of the drum type washer-dryer 60 can be reduced. Can be done.

(Embodiment 5)
FIG. 13 is a vertical cross-sectional view schematically showing the configuration of the vertical washer / dryer 70 according to the fifth embodiment of the dryer of the present disclosure. In the vertical washer / dryer 70 of the present embodiment, the rotation axis of the drum 3 is configured in the vertical direction, and a pulsator 14 for stirring the laundry and the washing water is provided at the bottom position of the drum 3. Other configurations and operations are the same as those of the drum type washer-dryer 60 of the first and third embodiments. The points different from the first and third embodiments will be mainly described.

In the vertical washer / dryer 70 of the present embodiment, the rotation axis of the drum 3 is vertical. Therefore, the water tank 2 and the drum 3 of the drum type washer / dryer 60 described in the first embodiment or the third embodiment. The "front" direction is the "up" direction, and the "rear, back" direction is the "down, bottom" direction. If the water tank 2 and the drum 3 of the drum-type washer-dryer 60 of the first and third embodiments shown in FIGS. 1 to 6 and 9 to 10 are rotated 90 degrees to the right, the vertical washer-dryer 70 can be applied. ..

In the vertical washer / dryer 70 of the present embodiment, the drum 3 does not rotate, but the pulsator 14 rotates in the forward direction and the reverse direction, so that the laundry contained in the drum 3 is agitated. Wash, rinse, and dry.

FIG. 14 shows the configuration of the shield portion of the vertical washer / dryer 70 according to the fifth embodiment. FIG. 14 is a diagram in which a part of the configuration of the vertical washer / dryer 70 according to the fifth embodiment shown in FIG. 13 is omitted. In FIG. 14, the members constituting the shield portion are shaded. In the vertical washer / dryer 70 of the fifth embodiment, the shield portion includes the water tank lid 15, the water tank front part 2a including the water tank opening 2c, and the water tank rear part 2b.

The vertical washer / dryer 70 of the present embodiment can also suppress the leakage of microwaves even if the water tank 2 vibrates, like the drum-type washer / dryer 60 of the first and third embodiments.

(Embodiment 6)
FIG. 15 is a vertical cross-sectional view schematically showing the configuration of the drum type washer-dryer 60 according to the sixth embodiment of the dryer of the present disclosure. The drum-type washer-dryer 60 of the present embodiment has a vibration-proof mechanism for suppressing vibration of the housing 1 and the drum 3, a cover portion 24, and a water-sealing member 23. Different from machine 60. Other configurations and operations are the same as those in the first embodiment. The points different from the first embodiment will be mainly described.

In the drum-type washer-dryer 60 of the sixth embodiment, an opening 19 and a door body 5 for opening and closing the opening 19 are provided on the front surface of the housing 1. A water tank 2 having a bottomed cylindrical shape in which wash water is stored is provided inside the housing 1. The water tank 2 is fixed to the housing 1 by fixing the water tank opening 2c and the opening 19 provided at positions facing the opening 19 of the housing 1. The bottom surface of the water tank 2 (the surface facing the back surface of the housing 1 in FIG. 15) is composed of a plurality of members. The details will be described later.

An elastic tubular door packing 23a is provided all around the inside of the opening 19 of the housing 1. The user can put in and take out the laundry with respect to the drum 3 by opening the door body 5. When the user closes the door body 5, the door packing 23a is pressed by the door body 5 and elastically deformed, so that the watertightness of the water tank 2 with respect to the outside of the machine is ensured.

The water tank 2 has a water tank front portion 2a having a water tank opening 2c and a water tank rear portion 2b provided behind the water tank front portion 2a. The water tank front portion 2a may include a part of the side surface side of the bottom surface portion in addition to the top surface portion and the side surface portion of the cylinder. In that case, the rear portion 2b of the water tank may be the remaining portion on the central side of the bottom surface portion.

The drum front portion 3a may include a part of the side surface side of the bottom surface portion in addition to the top surface portion and the side surface portion of the drum 3. In that case, the drum rear portion 3b may be the remaining portion of the bottom surface portion on the rotation axis side.

A drum drive unit 6 that rotationally drives the drum 3 is attached to the bottom surface of the drum 3. The drum drive unit 6 has a drive motor 6a, a rotary shaft 6b that connects the drum 3 and the drive motor 6a, and a bearing portion 6c that supports the rotary shaft 6b. The bearing portion 6c is configured to support the rotary shaft 6b with a plurality of bearings. The drive motor 6a rotates the drum 3 around the rotation axis in the forward direction and the reverse direction. The drum-type washer-dryer 60 performs stirring washing, rinsing, dehydration, and drying of the laundry contained in the drum 3 by the rotation of the drum 3 driven by the drive motor 6a.

Next, the configuration of the bottom surface of the water tank 2 included in the rear portion 2b of the water tank, and the vibration isolation mechanism 40 that suppresses the vibration of the drum 3 and the housing 1 will be described. First, as described above, the bottom surface of the water tank 2 is composed of a plurality of members. That is, the bottom surface of the water tank 2 itself is opened on the central side, leaving the side surface side, and a part of the vibration isolation mechanism 40 is incorporated in the opening portion. The anti-vibration mechanism 40 includes a motor support portion 26, a plurality of dampers (lower damper 4a and upper damper 4b) provided between the motor support portion 26 and the housing 1, a flexible water sealing member 23, and the like. including. A drum drive unit 6 is fixed to the motor support unit 26. The motor support portion 26 is located at the opening portion on the bottom surface of the water tank 2, and is provided so as to close the opening via a water sealing member 23 provided with flexibility and watertightness. As described above, the bottom surface of the water tank 2 includes the motor support portion 26 and the water sealing member 23.

The plurality of dampers support the drum drive unit 6 and the drum 3 from the housing 1 via the motor support unit 26. The plurality of dampers include two lower dampers 4a that support the lower left and right lower parts of the motor support portion 26 from the bottom portion of the housing 1, and an upper damper 4b that supports the upper portion of the motor support portion 26 from the rear portion of the housing 1. Provided. When the drum 3 rotates at a particularly high speed, a complicated swinging phenomenon occurs due to the bias of the laundry in the drum 3. The vibration generated thereby is transmitted to the motor support unit 26 via the drum drive unit 6. At this time, the lower damper 4a mainly absorbs the vertical and horizontal vibrations of the motor support portion 26, and the upper damper 4b mainly absorbs the front-rear vibrations of the motor support portion 26. As a result, the vibration of the drum 3 is damped and the vibration transmission to the housing 1 is suppressed.

With the vibration isolation mechanism 40 configured in this way, the vibration of the drum 3 that houses and rotates the laundry is transmitted to the motor support portion 26, but the vibration transmission to the housing 1 is transmitted to the lower damper 4a and the upper damper 4b. The vibration transmission to the water tank 2 fixed to the housing 1 is suppressed by the water sealing member 23.

A cloth amount detection unit (not shown) may be attached to the lower damper 4a. The cloth amount detecting unit detects the amount of displacement in which the axis of the lower damper 4a is displaced up and down due to a change in weight due to clothing or the like in the drum 3. The drum-type washer-dryer 60 detects the amount of clothes in the drum 3 based on the displacement amount detected by the cloth amount detecting unit.

Further, the position and number of dampers and the shape of the motor support portion 26 are not particularly limited. In short, it suffices if the load of the rotating drum 3 or the like can be reliably supported and the vibration in all directions can be accurately damped.

FIG. 16 shows the configuration of the shield portion of the drum type washer / dryer 60 according to the sixth embodiment. FIG. 16 is a diagram in which a part of the configuration of the drum-type washer-dryer 60 according to the sixth embodiment shown in FIG. 15 is omitted. In FIG. 16, the members constituting the shield portion are shaded. In the drum-type washer-dryer 60 of the sixth embodiment, the shield portion includes a door body 5, an opening 19, a water tank front portion 2a, a cover portion 24, and a water tank rear portion 2b. The cover portion 24 may be included in the rear portion 2b of the water tank. The cover portion 24 is provided so as to cover the water sealing member 23 on the outside of the water tank 2 from the water sealing member 23 in parallel with the water sealing member 23.

In the present embodiment, the bottom surface of the water tank 2 is configured to include the motor support portion 26 and the water sealing member 23, the water sealing member 23 ensures watertightness, and the water sealing member 23 is formed of an electromagnetic wave shielding material. It is covered by the covered cover portion 24. The cover portion 24 is made of a face material having conductivity and flexibility. As a result, the housing 1 and at least the front portion 2a of the water tank can be separated from the motor support portion 26 that vibrates due to the rotation of the drum 3, so that the vibration of the drum 3 is not easily transmitted to the housing 1. Therefore, it is possible to prevent the gap on the bottom surface of the water tank 2 provided with the water sealing member 23 from expanding due to vibration and causing microwaves to leak from the gap. That is, by providing the cover portion 24 having conductivity and flexibility, the drum 3 rotates and vibrates, and even if the motor support portion 26 and the water tank 2 vibrate due to this, the object to be dried by irradiating electromagnetic waves. It is possible to provide a drum-type washer-dryer 60 capable of suppressing leakage of electromagnetic waves when drying an object.

Further, since the microwave irradiation unit 30 can be installed in the housing 1 or the water tank 2 where the vibration is small, the microwave oscillator such as a magnetron can be protected from the vibration, and the microwave oscillation performance and durability can be improved. Can be improved. Of the configurations of the microwave irradiation unit 30, some configurations such as a microwave oscillator and a waveguide may be installed in the housing 1 or the water tank 2.

The cover portion 24 is made of a flexible face material. As a result, processing and mounting can be facilitated, so that the manufacturing cost can be reduced. One end of the face material is fixed to the entire circumference of the opening on the bottom surface of the water tank 2, and the other end is fixed to the motor support portion 26. The face material may be fixed by another face material such as a belt, or may be fixed by a wire material such as a wire. In this case, the face material may be fixed by pressing the face material from the outside of the face material with a belt, a wire, or the like. As a result, the configuration for fixing the face material can be simplified and the manufacturing cost can be reduced. Further, the face material may be fixed by forming the end of the face material in a bag shape and passing a belt, a wire or the like through the bag. As a result, the work for fixing the face material can be simplified, the manufacturing cost can be reduced, and the stability of the contacts can be improved.

The cover portion 24 may be formed in a donut shape having a space on the center side by using an elastic material. In this case, the face material constituting the cover portion 24 may be a conductive cloth or mesh material. Further, the face material may be formed by knitting a string-shaped cloth. As a result, the vibration of the drum 3 can be made difficult to be transmitted by the housing 1. In addition, since processing and mounting can be facilitated, the manufacturing cost can be reduced.

As shown in FIG. 15, the cover portion 24 may be provided on the outside of the water sealing member 23. When a chlorine-based bleaching agent is used during washing, if the washing water containing chlorine adheres to the cover portion 24, the conductive material may be corroded by chlorine. However, by providing the cover portion 24 on the outside of the water sealing member 23, it is possible to prevent moisture from adhering to the cover portion 24, so that the electromagnetic wave shielding performance and durability of the cover portion 24 can be suppressed from deteriorating. Can be done. Further, since the cover portion 24 can be easily incorporated, the manufacturing cost can be reduced.

In another example, the cover portion 24 may be provided inside the water sealing member 23. As a result, the exposure of electromagnetic waves to the water sealing member 23 can be suppressed, so that the watertightness, airtightness, and durability of the water sealing member 23 can be suppressed from being lowered. For example, it is possible to reduce the situation where electromagnetic waves are concentrated on a specific portion of the water sealing member 23 and abnormal overheating occurs.

In yet another example, the cover portion 24 may also be used as the water sealing member 23. In this case, the face material constituting the cover portion 24 may be formed of a conductive elastomer. As a result, the drum-type washer-dryer 60 of the present embodiment can be manufactured by incorporating only the water-sealing member 23 as in the conventional drum-type washer-dryer, so that the number of parts and the work man-hours can be reduced. The manufacturing cost can be reduced.

That is, the cover portion 24 may be provided at substantially the same position as the water sealing member 23, and may be provided so as to follow the flexibility of the water sealing member 23 and prevent electromagnetic waves from leaking.

When the front part 2a of the water tank and the rear part 2b of the water tank are manufactured and connected separately, it is necessary to suppress the leakage of microwaves while ensuring the watertightness of the connecting part between the front part 2a of the water tank and the rear part 2b of the water tank. Therefore, in this case, the water tank 2 is configured so as to sandwich and fix the waterproof member and the conductive member between the water tank front portion 2a and the water tank rear portion 2b.

In the sixth embodiment, when the shield portion includes the rear portion 2b of the water tank, the cover portion 24 having flexibility is provided at substantially the same position as the water sealing member 23 on the bottom surface of the water tank 2. As an example of this modification, a choke structure as described in the second embodiment may be provided instead of the cover portion 24. Further, a choke structure may be provided in addition to the cover portion 24.

As described above, in the drum type washer-dryer 60 of the sixth embodiment, the shield portion for suppressing leakage of microwaves from the housing 1 is at least the door body 5, the opening 19, and the front of the water tank. The portion 2a and the rear portion 2b of the water tank are included. With this configuration, even if the water tank 2 vibrates, leakage of electromagnetic waves can be suppressed.

Further, the water tank 2 is provided with a flexible cover portion 24 at substantially the same position as the water sealing member 23, and the entire water tank 2 including the cover portion 24 and the motor support portion 26 is formed of a conductive material. As a result, the manufacturing cost of the drum-type washer-dryer 60 can be reduced. Further, the cover portion 24 is made of a face material having conductivity and flexibility and is formed in a donut shape. As a result, the manufacturing cost of the drum-type washer-dryer 60 can be reduced.

(Embodiment 7)
FIG. 17 is a vertical cross-sectional view schematically showing the configuration of the drum type washer-dryer according to the seventh embodiment of the dryer of the present disclosure. The drum-type washer-dryer 60 according to the seventh embodiment includes a choke portion 25 in addition to the configuration of the drum-type washer-dryer 60 according to the sixth embodiment shown in FIG. Other configurations and operations are the same as those of the first, second and sixth embodiments. The differences from the first, second, and sixth embodiments will be mainly described.

FIG. 18 shows the configuration of the shield portion of the drum type washer / dryer 60 according to the seventh embodiment. FIG. 18 is a diagram in which a part of the configuration of the drum-type washer-dryer 60 according to the seventh embodiment shown in FIG. 17 is omitted. In FIG. 18, the members constituting the shield portion are shaded. In the drum-type washer-dryer 60 of the seventh embodiment, the shield portion includes a door body 5, an opening 19, a water tank front portion 2a, and a drum 3.

The drum 3 contains a conductive material such as a metal capable of reflecting or absorbing microwaves. The drum 3 may be entirely formed of an electromagnetic wave shielding material such as a conductive material. The drum 3 may be made of a material such as resin, and a plating layer of a conductive material may be provided on the inner surface or the outer surface. The drum 3 may be made of a material such as resin, and may be provided with a layer of an electromagnetic wave shielding material on the inner surface, the outer surface, or the inside. The rear portion 3b of the drum is provided with a large number of holes through which water and air can pass, and these holes are formed in a size such that microwaves do not leak.

In the drum-type washer-dryer 60 of the seventh embodiment, unlike the drum-type washer-dryer 60 of the sixth embodiment, the shield portion is formed by the drum 3 instead of the water tank rear portion 2b, so that the water tank front portion 2a and the drum front portion are formed. There is a gap between it and 3a. Therefore, in order to prevent microwaves from leaking from this gap, a gap shield portion is provided. As an example of the gap shield portion, there is a choke structure which is a non-contact type microwave shield. For example, a choke portion 25 which is an example of the gap shield portion is formed between the water tank front portion 2a and the drum front portion 3a. .. As the structure of the choke portion 25, any choke structure known in the technical field such as a microwave oven can be adopted. The details of the gap shield portion are the same as those in the second embodiment.

As described above, in the drum type washer-dryer 60 of the seventh embodiment, the shield portion for suppressing leakage of microwaves from the housing 1 is at least the door body 5, the opening 19, and the front of the water tank. A portion 2a and a drum 3 are included. With this configuration, even if the drum 3 rotates and vibrates, leakage of electromagnetic waves can be suppressed.

Further, the drum 3 may be formed entirely of a conductive material, and the shield portion may be configured to include a gap shield portion formed by the drum front portion 3a and the water tank front portion 2a. The gap shield portion may be formed of a choke structure (choke portion 25) or a bearing. As a result, the water tank 2 can be formed of resin or the like. That is, in the conventional product, the drum 3 usually formed of metal is used as the shield portion, and the water tank 2 can be formed of an inexpensive material such as resin, so that the manufacturing cost of the drum type washer-dryer 60 can be reduced. Can be done.

(Other embodiments)
As described above, Embodiments 1 to 7 have been described as examples of the techniques disclosed in this application. However, the technique in the present disclosure is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, etc. have been made. It is also possible to combine the components described in the above embodiments 1 to 7 to form a new embodiment.

Therefore, other embodiments will be illustrated below.

In the fifth embodiment, the vertical washer / dryer 70 in which the rotation axis of the drum 3 of the drum type washer / dryer 60 of the third embodiment is vertical has been described. Similarly to this, a vertical washer / dryer in which the rotation axis of the drum 3 of the drum type washer / dryer 60 of the first embodiment is vertical is also possible. In this case, the shield portion includes at least the door body 5, the opening 19, the water tank front portion 2a, the cover portion 24, and the water tank rear portion 2b.

Further, a vertical washer / dryer in which the rotation axis of the drum 3 of the drum type washer / dryer 60 of the second embodiment is vertical is also possible. In this case, the shield portion includes at least the door body 5, the opening 19, the water tank front portion 2a, the cover portion 24, and the drum 3. Further, a vertical washer / dryer in which the rotation axis of the drum 3 of the drum type washer / dryer 60 of the fourth embodiment is vertical is also possible. In this case, the shield portion includes at least the water tank lid 15, the water tank front portion 2a, and the drum 3.

Further, a vertical washer / dryer in which the rotation axis of the drum 3 of the drum type washer / dryer 60 of the sixth embodiment is vertical is also possible. In this case, the shield portion includes at least a door body 5, an opening 19, a water tank front portion 2a, and a water tank rear portion 2b. Further, a vertical washer / dryer in which the rotation axis of the drum 3 of the drum type washer / dryer 60 of the seventh embodiment is vertical is also possible. In this case, the shield portion includes at least a door body 5, an opening 19, a water tank front portion 2a, and a drum 3.

The vertical washer / dryer described above can suppress the leakage of microwaves even if the water tank 2 vibrates, similar to the drum-type washer / dryer 60 of the first to fourth and sixth to seventh embodiments.

In the first to seventh embodiments, the drum type washer-dryer 60 and the vertical type washer-dryer 70 have been described as examples of the dryers. The dryer may be another type of washer / dryer. Further, the dryer may be a dedicated dryer having no washing function. In this case, instead of the water tank 2, an outer tank may be provided on the outside of the drum 3. The technique of the present disclosure is also applicable to a dryer for drying an object to be dried other than clothing.

The present disclosure provides a technique for suppressing leakage of electromagnetic waves when drying an object to be dried by irradiating it with electromagnetic waves. Then, it is effective to improve the leakage suppression by combining a plurality of leakage suppression technologies to form a double or triple structure. For example, the configuration of the first embodiment and the configuration of the second embodiment can be combined as they are. According to this configuration, electromagnetic waves leaking into the gap between the water tank 2 and the drum 3 can be suppressed, and electromagnetic wave leakage from the water tank 2 can be further suppressed. The same applies to the combination of any other embodiment.

In the above embodiment, the water tank may be elastically supported separately from the housing. According to this aspect, it is possible to prevent the vibration from being easily transmitted to the housing when the drum is rotated during drying, so that it is possible to suppress the leakage of electromagnetic waves from the gap generated by the vibration.

In the above embodiment, the microwave irradiation unit may be installed in a housing separated from the water tank. According to this aspect, since the configuration of the microwave irradiation unit can be protected from vibration, the microwave irradiation performance and durability can be improved.

Since the above-described embodiment is for exemplifying the technology in the present disclosure, various changes, replacements, additions, omissions, etc. can be made within the scope of claims or the equivalent scope thereof.

The present disclosure can be used in a dryer for drying an object to be dried such as clothing.

1 housing, 2 water tank (outer tank), 2a water tank front (outer tank front), 2b water tank rear (outer tank rear), 2c water tank opening (outer tank opening), 3 drum, 3a drum front, 3b rear part of drum, 3c drum opening, 4 damper, 4a lower damper, 4b upper damper, 5 door body, 6 drum drive part, 6a drive motor, 6b rotating shaft, 6c bearing part, 7 circulation air passage, 8 outlet, 9 drainage port, 10 drainage valve, 11 drainage pipe, 12 water supply valve, 13 water supply pipe, 14 pulsator, 15 water tank lid (outer tank lid), 16 blower fan, 17 heater, 18 inflow temperature detector, 19 opening, 20 Control device, 21 dehumidifying part, 22 lint filter, 23 water sealing member, 23a door packing, 24 cover part, 25 choke part (gap shield part), 26 motor support part, 30 microwave irradiation part, 32 microwave irradiation port, 40 anti-vibration mechanism, 47 end face of connecting part on the rear side of the water tank, 48 end face of connecting part on the front side of the water tank, 49 waterproof member housing part, 50 conductive member housing part, 51 waterproof member, 52 conductive member, 53 waterproof member contact part, 54 conductive member contact part, 60 drum type washer / dryer, 70 vertical washer / dryer.

Claims (19)

1. With the housing
   An outer tank provided inside the housing and
   A drum rotatably provided inside the outer tank and accommodating an object to be dried,
   A microwave irradiation unit that irradiates the object to be dried in the drum with microwaves,
   With
   The housing is
   With the opening provided on the front
   A door body that opens and closes the opening,
   Have,
   The outer tank is
   An outer tank front portion having an outer tank opening facing the opening,
   The rear part of the outer tank behind the front part of the outer tank and
   Have,
   The shield portion for suppressing leakage of the microwave from the housing is at least a space between the door body, the opening, the outer tank front portion, and the opening and the outer tank front portion. A dryer including a cover portion for covering the outer tank, and further including the rear portion of the outer tank or the drum.
2. With the housing
   An outer tank provided inside the housing and
   A drum rotatably provided inside the outer tank and accommodating an object to be dried,
   A microwave irradiation unit that irradiates the object to be dried in the drum with microwaves,
   With
   The housing has an opening provided on the front or top surface.
   The outer tank is
   An outer tank front portion having an outer tank opening facing the opening,
   The rear part of the outer tank behind the front part of the outer tank and
   An outer tank lid that opens and closes the outer tank opening, and
   Have,
   The shield portion for suppressing leakage of the microwave from the housing includes at least the outer tank lid, the outer tank front portion, and further includes the outer tank rear portion or the drum. Dryer.
3. With the housing
   An outer tank fixedly provided inside the housing and
   A drum rotatably provided inside the outer tank and accommodating an object to be dried,
   A drum drive unit that rotationally drives the drum and
   An anti-vibration mechanism that elastically supports the drum drive unit,
   A microwave irradiation unit that irradiates the object to be dried in the drum with microwaves,
   With
   The housing has an opening provided on the front surface and a door body for opening and closing the opening.
   The outer tank has an outer tank front portion having an outer tank opening facing the opening, and an outer tank rear portion rearward from the outer tank front portion.
   The drum drive unit has a drive motor and
   The anti-vibration mechanism includes a motor support portion to which the drum drive portion is fixed, a damper provided between the motor support portion and the housing, and a flexible water sealing member.
   The bottom surface of the outer tank includes the motor support portion and the water sealing member provided in a watertight manner.
   The shield portion for suppressing leakage of the microwave from the housing includes at least the door body, the opening, the outer tank front portion, and further includes the outer tank rear portion or the drum. Consists of a dryer.
4. When the shield portion includes the rear portion of the outer tank,
   The dryer according to claim 1 or 2, wherein the outer tank is entirely made of a conductive material.
5. When the shield portion includes the rear portion of the outer tank,
   A claim that the outer tank is provided with a flexible cover portion at substantially the same position as the water sealing member, and the entire outer tank including the cover portion and the motor support portion is formed of a conductive material. The dryer according to 3.
6. The dryer according to claim 4 or 5, wherein the outer tank is fixed with a waterproof member and a conductive member sandwiched between the front portion of the outer tank and the rear portion of the outer tank.
7. The drum
   A drum front having a drum opening facing the opening and a drum opening
   The rear part of the drum behind the front part of the drum and
   Have,
   When the shield portion contains the drum
   The drum is entirely made of a conductive material.
   The dryer according to claim 1, wherein the shield portion includes a gap shield portion formed between the front portion of the drum and the front portion of the outer tank.
8. The dryer according to claim 7, wherein the gap shield portion is formed of a choke structure or a bearing.
9. The dryer according to claim 8, wherein when the gap shield portion has a choke structure, the choke structure includes at least a plurality of chokes or a stepped choke.
10. The dryer according to claim 8 or 9, wherein when the gap shield portion has a choke structure, the choke structure is formed by filling at least a part of the groove space with resin.
11. It has a door body that opens and closes the opening.
    The dryer according to claim 2, wherein the outer tank lid is configured to open and close in conjunction with the opening and closing of the door body.
12. The dryer according to claim 1, wherein the cover portion is formed of a conductive and flexible face material in a tubular shape.
13. The dryer according to claim 1 or 12, wherein the cover portion is formed of a conductive face material in a bellows tubular shape.
14. The dryer according to claim 5, wherein the cover portion is formed in a donut shape with a face material having conductivity and flexibility.
15. The dryer according to claim 1, 5, 12, 13, or 14, wherein the cover portion is provided at least on the outside or inside of the water sealing member.
16. The dryer according to claim 1, 5, 12, 13, or 14, wherein the cover portion is also used as the water sealing member.
17. The dryer according to any one of claims 12 to 14, wherein the face material is made of a conductive cloth or mesh material.
18. The dryer according to claim 17, wherein the face material is formed by knitting a string-shaped cloth.
19. The dryer according to claim 12, 13, 14, 17, or 18, wherein the face material is formed of a conductive elastomer.

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