CN110486821B - Indoor unit of cabinet air conditioner - Google Patents

Abstract

The invention relates to the technical field of air conditioning, in particular to a cabinet type air conditioner indoor unit. The invention aims to solve the problem of unsatisfactory heat exchange effect existing in the evaporator of the existing cabinet-type air conditioner indoor unit. For this purpose, the cabinet-type air conditioner indoor unit of the present invention comprises a body, the body is provided with an air inlet and a first air outlet, the first air outlet is provided with a humidifying device, and the body is provided with a blower fan, an evaporator and a water collector. The tray and the water receiving tray are arranged under the evaporator; wherein, the evaporator includes a coiled tube and fins arranged on the coiled tube, and the center line of the coiled tube is arranged in a spiral form from top to bottom around a vertical axis. Through the above arrangement, when the cabinet air conditioner is running, the refrigerant flows three-dimensionally along the direction of the vortex, so that when the air flows through the evaporator, the heat exchange is more uniform and the heat exchange effect is better.

Description

Cabinet air conditioner indoor unit

technical field

The invention relates to the technical field of air conditioning, in particular to a cabinet type air conditioner indoor unit.

Background technique

As air conditioners are widely used in thousands of households, users have higher and higher requirements for the performance of air conditioners. Take the cabinet air conditioner as an example. Usually under the same conditions, the performance of the cabinet air conditioner depends on the heat exchange efficiency, and the heat exchange efficiency is directly related to the heat exchange area. The larger the heat exchange area, the higher the heat exchange efficiency. high.

Usually, the structure and arrangement of the evaporator directly determine the size of the heat exchange area and the heat exchange efficiency. In existing cabinet-type air conditioners, the evaporator is usually placed obliquely inside the air conditioner casing or attached to the air inlet, and the coils are arranged in an S-shape from one end to the other. However, such an arrangement makes the contact between the airflow and the evaporator The heat transfer is not uniform, resulting in unsatisfactory heat transfer effect.

Correspondingly, there is a need in the art for a new cabinet-type air conditioner indoor unit to solve the above problems.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, that is, to solve the problem of the unsatisfactory heat exchange effect of the evaporator of the existing cabinet-type air conditioner indoor unit, the present invention provides a cabinet-type air conditioner indoor unit, the cabinet-type air conditioner The indoor unit includes a body, the body is provided with an air inlet and a first air outlet, the first air outlet is provided with a humidifier, the body is provided with a blower fan, an evaporator and a water tray, the The water receiving tray is arranged below the evaporator; wherein, the evaporator includes a coiled tube and fins arranged on the coiled tube, and the center line of the coiled tube is formed from top to bottom around a vertical axis Swirl coil setting.

In the preferred technical solution of the above cabinet-type air conditioner indoor unit, the distance between the center line and the vertical axis decreases gradually from top to bottom.

In the preferred technical solution of the above-mentioned cabinet-type air conditioner indoor unit, the water receiving tray includes a circular tray and an annular tray, the circular tray and the annular tray are vertically arranged vertically, and there is a drainage between them. The tube is connected.

In the preferred technical solution of the above cabinet-type air conditioner indoor unit, the body includes a columnar shell and an annular air outlet structure arranged on the top of the columnar shell, and the air blower, the evaporator and the water receiving tray are arranged In the cylindrical housing, the annular air outlet structure forms the first air outlet.

In the preferred technical solution of the above cabinet-type air conditioner indoor unit, the annular air outlet structure includes an inner ring surface and an outer ring surface, and the outer ring surface is sleeved on the outside of the inner ring surface and surrounds the inner ring surface. An air outlet cavity is formed, the front end of the outer ring surface and the front end of the inner ring surface form the first air outlet, and the rear end of the outer ring surface and the rear end of the inner ring surface are closed The bottom end of the outer ring surface is also provided with a ventilation hole, and the air outlet chamber communicates with the cylindrical shell through the ventilation hole.

In the preferred technical solution of the above cabinet-type air conditioner indoor unit, a second air outlet is provided on the outer ring surface, the first air outlet is equipped with a first flap mechanism, and the second air outlet is equipped with a second air outlet. Two flap mechanisms, the first flap mechanism is configured to close or open the first air outlet when in action, and the second flap mechanism is configured to close or open the second air outlet when in action.

In the preferred technical solution of the above cabinet-type air conditioner indoor unit, the humidifying device includes a water tank and an atomizer disposed in the water tank, and the water tank is fixedly connected to the bottom of the inner ring surface.

In the preferred technical solution of the above cabinet-type air conditioner indoor unit, the air blower is a digital turbine motor.

In the preferred technical solution of the cabinet-type air conditioner indoor unit, the air conditioner indoor unit further includes a base, and the body is rotatably connected to the base.

In the preferred technical solution of the above cabinet-type air conditioner indoor unit, a gap is formed between the body and the base, and the air inlet is arranged at the bottom of the body.

Those skilled in the art can understand that, in the preferred technical solution of the present invention, the cabinet-type air conditioner indoor unit includes a body, the body is provided with an air inlet and a first air outlet, and a humidifying device is provided at the first air outlet. A blower fan, an evaporator and a water receiving tray are provided, and the water receiving tray is arranged under the evaporator; wherein, the evaporator includes a coil and fins arranged on the coil, and the center line of the coil surrounds a vertical axis It is arranged in a spiral coil from top to bottom.

By arranging the coil of the evaporator in the body of the indoor unit of the cabinet air conditioner in a vortex shape from top to bottom around a vertical axis with the center line, the refrigerant flows along the direction of the vortex when the cabinet air conditioner is running. Three-dimensional flow, so that when the air flows through the evaporator, the heat exchange is more uniform and the heat exchange effect is better, which avoids the problem that the heat exchange effect is good at one end and poor at the other end when the existing evaporator is arranged in an S shape. By arranging the humidifying device at the first air outlet, the water vapor discharged from the humidifying device can be evenly mixed with the air flow and sent to every corner of the room by virtue of the air supply effect of the first air outlet.

Furthermore, by setting the distance between the center line and the vertical axis in a manner that gradually decreases from top to bottom, so that when the air flow flows from bottom to top, it can fully contact the evaporator, which is conducive to improving heat exchange efficiency, Realize sufficient heat exchange with air flow.

Furthermore, the water tray adopts a split design in which the circular tray and the annular tray are arranged up and down, which cleverly solves the problem that the water tray cannot be arranged below when the evaporator is arranged horizontally, and realizes the condensed water without affecting the air intake. collect.

Further, by setting an annular air outlet structure on the top of the cylindrical shell, the first air outlet and the second air outlet are arranged on the annular air outlet structure, and each of the first air outlet and the second air outlet is equipped with a baffle mechanism, so that the air conditioner The device has a brand-new air outlet structure and two types of air outlet (jet mode and diffusion mode), with larger air volume, wide air supply area, and long range. Users can flexibly choose the air outlet mode based on their needs, subverting traditional cabinet products Iterative closed thinking promotes the development and transformation of air conditioners.

Furthermore, by rotating the body and the base, the air conditioner can be freely rotated during installation, which facilitates finding the best installation angle, reduces installation difficulty, and improves the applicability of the air conditioner.

Furthermore, by forming a gap between the body and the base, and setting the air inlet at the bottom of the body, the area of the air inlet is larger and the air intake is larger, which is beneficial to improving the heat exchange effect and efficiency.

Description of drawings

The cabinet type air conditioner indoor unit of the present invention will be described below with reference to the accompanying drawings. In the attached picture:

Fig. 1 is a structural diagram of a cabinet-type air conditioner indoor unit in a first embodiment of the present invention;

Fig. 2A is the top view of the evaporator of the present invention;

Figure 2B is a front sectional view of the evaporator of the present invention;

Fig. 3A is a sectional view of the first air outlet mode of the annular air outlet structure of the present invention;

Fig. 3B is a sectional view of the second air outlet mode of the annular air outlet structure of the present invention;

Fig. 4A is a structural diagram of the first embodiment of the water tray of the present invention;

Fig. 4B is a structural diagram of a second embodiment of the water tray of the present invention;

Fig. 5A is a front sectional view of the sterilization and purification module of the present invention;

Fig. 5B is a top view of the sterilization and purification module of the present invention;

Fig. 6 is a working principle diagram of the cabinet-type air conditioner indoor unit in the first embodiment of the present invention;

Fig. 7 is a structural diagram of a cabinet-type air conditioner indoor unit in a second embodiment of the present invention;

Fig. 8 is a structural diagram of the fresh air module of the present invention;

Fig. 9A is a working principle diagram of the first fresh air mode of the cabinet-type air conditioner indoor unit in the second embodiment of the present invention;

Fig. 9B is a working principle diagram of the second fresh air mode of the cabinet-type air conditioner indoor unit in the second embodiment of the present invention;

Fig. 9C is a working principle diagram of the third fresh air mode of the cabinet-type air conditioner indoor unit in the second embodiment of the present invention.

List of reference signs

1. Body; 11. Cylindrical shell; 111. Air inlet; 12. Annular air outlet structure; 121. Inner ring surface; 122. Outer ring surface; 123. First air outlet; 124. Second air outlet; 125. Second air outlet 1. Block mechanism; 126. Second block mechanism; 2. Humidification device; 21. Water tank; 22. Atomizer; 3. Air blower; 4. Evaporator; 41. Coil; 42. Fin; , water tray; 51, circular tray; 52, annular tray; 53, drainage tube; 6, base; 7, sterilization and purification module; 71, HEPA filter layer; 72, cold catalyst filter layer; 73, negative ion germicidal lamp; 74. Ion converter; 8. Fresh air module; 81. Cylindrical shell; 811. Air suction port; 812. Air exhaust port; 82. Fresh air fan; 83. Variable speed drive mechanism; 831. Drive motor; 832. Gear set; 833 , Electric shift fork.

Detailed ways

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention. For example, although the blower fan in the drawings is arranged above the evaporator, this positional relationship is not static, and those skilled in the art can make adjustments to suit specific applications. Obviously, the blower fan can also be arranged under the water receiving tray, etc.

It should be noted that, in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The terminology of the indicated direction or positional relationship is based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation , and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In addition, it should be noted that, in the description of the present invention, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a It is a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary, and it may be the internal communication of two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Example 1

First, referring to Fig. 2A and Fig. 2B, the evaporator of the present invention will be described. Among them, FIG. 2A is a top view of the evaporator of the present invention; FIG. 2B is a front sectional view of the evaporator of the present invention.

As shown in Figure 2A and Figure 2B, in order to solve the problem of the unsatisfactory heat exchange effect of the evaporator of the existing cabinet-type air conditioner indoor unit, the first aspect of the present application provides an evaporator 4, the evaporator 4 includes a disk The tube 41 and the fins 42 arranged on the coiled tube 41 , in particular, the centerline of the coiled tube 41 is coiled around a vertical axis from top to bottom in a spiral shape.

By setting the coil tube 41 of the evaporator 4 in a spiral shape from top to bottom around a vertical axis on the center line, when the evaporator 4 is installed in the indoor unit of the cabinet air conditioner, the refrigerant flows along the coil tube 41 The direction of the vortex flows, so that when the indoor air flows through the evaporator 4, the heat exchange with the evaporator 4 is more uniform, and the heat exchange effect is better, which avoids the heat exchange effect when the existing evaporator 4 is arranged in an S shape. A question of good and bad.

Further referring to FIG. 2A and FIG. 2B , in a possible implementation manner, the distance between the centerline of the evaporator 4 and the vertical axis gradually decreases from top to bottom, that is, the evaporator 4 is in a spiral shape from top to bottom. . The fins 42 are square or circular and there are multiple fins 42 , and each fin 42 is surrounded and sleeved on the outer wall of the coil tube 41 in a manner perpendicular to the axial direction of the coil tube 41 . When the evaporator 4 is applied to the cabinet-type air conditioner indoor unit, preferably, the end of the coil 41 away from the vertical axis is used as an inlet, and the end close to the vertical axis is used as an outlet.

In the preferred embodiment above, by setting the distance between the center line and the vertical axis in a manner that gradually decreases from top to bottom, so that when the air flow flows from bottom to top, it can fully contact with the evaporator 4, which is beneficial to improve Heat exchange efficiency, to achieve sufficient heat exchange with the air flow. By setting one end of the coil 41 away from the vertical axis as an inlet, and one end close to the vertical axis as an outlet, when the evaporator 4 is in use, the refrigerant gradually flows from the upper end of the vortex to the lower end, and the air flow along the The downward and upward flow can form convection with the evaporator 4, so it can fully contact with the evaporator, which is conducive to improving the heat exchange efficiency and achieving sufficient heat exchange.

Of course, the above-mentioned preferred embodiments are only used to illustrate the principle of the present invention, and are not intended to limit the scope of protection of the present invention. Those skilled in the art can adjust the above-mentioned configuration, so that the application can be applied to more specific application scenarios.

For example, in an alternative embodiment, the fins 42 can be connected to the coil tube 41 in any way, except that the fins 42 are sheathed on the outer wall of the coil tube 41 along the axis perpendicular to the coil tube 41, as long as the The connection method is conducive to the evaporation and heat dissipation of the refrigerant. For example, the fins 42 can also be arranged in a manner of spirally coiling on the outer wall of the coil 41 along the length direction of the coil 41, so that the air flow can fully contact with the fins 42 when passing through the evaporator 4, thereby achieving excellent Heat exchange effect.

Of course, the above alternative implementations, and between the alternative implementations and the preferred implementations can also be used in cross-coordination, so that new implementations can be combined to apply to more specific application scenarios.

Example 2

Referring to Fig. 1 to Fig. 6, the first embodiment of the cabinet type air conditioner indoor unit of the present invention will be described below.

Referring first to FIG. 1 , FIG. 1 is a structural diagram of a cabinet-type air conditioner indoor unit in a first embodiment of the present invention. As shown in FIG. 1 , the present invention also provides a cabinet-type air conditioner indoor unit. The cabinet-type air conditioner indoor unit includes a body 1, and the body 1 is provided with an air inlet 111 and a first air outlet 123 (refer to FIG. 3A ). A humidifier 2 is provided at the first air outlet 123, and a sterilization and purification module 7, a water tray 5, an evaporator 4, and an air blower 3 are arranged in sequence along the air flow direction in the body 1, and the water tray 5 is arranged on the evaporator 4. Below, the sterilization and purification module 7 is set at the air inlet 111 . Wherein, the evaporator 4 is the evaporator 4 whose center line surrounds the vertical axis from top to bottom as described in Embodiment 1, and its structure is not described in detail in this embodiment.

By setting the above-mentioned evaporator 4 in the body 1 of the indoor unit of the cabinet air conditioner, the refrigerant flows along the direction of the vortex from top to bottom when the cabinet air conditioner is running, so that when the air flows through the evaporator 4, the refrigerant flows in the same direction as the evaporator 4. The air flow direction produces convection, the heat exchange is more uniform, and the heat exchange effect is better, which avoids the problem that the heat exchange effect is good at one end and poor at the other end when the existing evaporators 4 are arranged in an S shape. By setting the humidifying device 2 at the first air outlet 123, the water vapor discharged from the humidifying device 2 can be evenly mixed with the air flow by the air supply effect of the first air outlet 123 and sent to every corner of the room.

Further referring to FIG. 1 , in a possible implementation, the cabinet-type air conditioner indoor unit includes a base 6 and a body 1, and the body 1 is connected to the base 6 in rotation, such as a free-rotating connection through a common bearing, or through a belt such as a rotating damping bearing. Damped swivel joint connection. After the connection, a gap is formed between the body 1 and the base 6 , the air inlet 111 is arranged at the bottom of the body 1 , and the side of the base 6 close to the body 1 is also provided with a guide slope. The body 1 includes a cylindrical shell 11 and an annular air outlet structure 12 arranged on the top of the cylindrical shell 11. The water receiving tray 5, the evaporator 4 and the air blower 3 are sequentially arranged in the cylindrical shell 11 from bottom to top, and the first air outlet 123 forms In the annular air outlet structure 12. Among them, the blower fan 3 adopts a digital turbine motor (or digital motor or digital motor), which is a motor with the characteristics of high speed and strong suction, and its maximum speed is close to 110,000 revolutions per minute, which is common 4-5 times the fan motor speed.

By rotating the body 1 and the base 6, the air conditioner can be freely rotated during installation, which facilitates finding the best installation angle, reduces installation difficulty, and improves the applicability of the air conditioner. By forming a gap between the body 1 and the base 6, and setting the air inlet 111 at the bottom of the body 1, the area of the air inlet 111 is larger and the air intake is larger, which is beneficial to the large-scale circulation of indoor air and heat exchange The effect and the improvement of heat exchange efficiency. The base 6 is provided with a guiding slope, which can initially guide the air intake and improve the smoothness of the air intake. By adopting the digital turbine motor as the air supply fan 3, the air conditioner has a strong wind force and a large air supply volume, which meets the needs of users for rapid cooling and heating.

A specific implementation of the annular air outlet structure will be described below with reference to FIG. 1 , FIG. 3A and FIG. 3B . Fig. 3A is a sectional view of the first air outlet mode of the annular air outlet structure of the present invention; Fig. 3B is a sectional view of the second air outlet mode of the annular air outlet structure of the present invention.

As shown in Figure 1, Figure 3A and Figure 3B, the annular air outlet structure 12 includes an inner ring surface 121 and an outer ring surface 122, the outer ring surface 122 is sleeved on the outside of the inner ring surface 121 and is surrounded by the inner ring surface 121 to form In the air outlet chamber, the front end of the outer ring surface 122 (that is, the right end in FIG. 3A ) and the front end of the inner ring surface 121 (also the right end in FIG. 3A ) form a first air outlet 123, and the side surface of the outer ring surface 122 is provided with The second air outlet 124 is closed and connected with the rear end of the outer ring surface 122 and the rear end of the inner ring surface 121 . A first flap mechanism 125 is disposed at the first air outlet 123 , and the first flap mechanism 125 can selectively open or close the first air outlet 123 . Similarly, the second air outlet 124 is provided with a second flap mechanism 126, and the second flap mechanism 126 can selectively open or close the second air outlet 124. Ventilation holes (not shown in the figure) are also provided at the bottom of the outer ring surface 122 . After the annular air outlet structure 12 is fixedly connected to the cylindrical housing 11 , the air outlet cavity communicates with the cylindrical housing 11 through the ventilation holes. The humidifying device 2 includes a water tank 21 and an atomizer 22 arranged in the water tank 21, such as an ultrasonic atomizer or an air compression atomizer, etc., the water tank 21 is fixedly connected to the bottom of the inner ring surface 121, and the atomizer 22 can The liquid in the water tank 21 is atomized into water mist.

Those skilled in the art can understand that, although it is not specifically shown in the accompanying drawings of this embodiment, the implementation forms of the first flap mechanism 125 and the second flap mechanism 126 are various, as long as the setting method can be effectively It only needs to realize the opening and closing control of the first air outlet 123 and the second air outlet 124 . For example, the first baffle mechanism 125 and/or the second baffle mechanism 126 can be implemented in the form of a linear motor to control the annular retaining ring, and the linear motor drives the annular retaining ring to move back and forth in the air outlet chamber to realize the first air outlet. 123 and/or the opening and closing control of the second air outlet 124; or the linear motor can also be replaced by a rotating motor combined with a rack and pinion, a chain, and the like. For another example, the first baffle mechanism 125 and/or the second baffle mechanism 126 can realize the opening and closing control of the second air outlet 124 by means of electromagnetic adsorption, that is, the retaining ring is made of metal material and placed in the air outlet chamber. An electromagnetic coil is arranged, and an elastic member is arranged between the retaining ring and the inner ring surface 121 or the outer ring face 122. When the power is applied, the electromagnetic coil generates magnetic force to attract the retaining ring, and the elastic member stores elastic potential energy, thereby opening the first air outlet 123 or the second air outlet. Two air outlets 124; when the electromagnetic coil is powered off, the retaining ring returns to the initial position under the action of the elastic member, closing the first air outlet 123 or the second air outlet 124. For another example, one of the first flap mechanism 125 and the second flap mechanism 126 can also be omitted, and the selection of any one of the first air outlet 123 and the second air outlet 124 can be realized only by controlling the movement of the above-mentioned one flap mechanism. sex turned on.

In particular, an air guiding structure is also provided on the inner ring surface 121 and/or the outer ring surface 122, and the air guiding structure is configured to gradually reduce the width of the air outlet at the air outlet. For example, the air guide structure adopts two arc-shaped plates as shown in Figure 3A or 3B, the setting of the two arc-shaped plates makes the outlet width of the first air outlet 123 and the second air outlet 124 gradually narrow, so that when the airflow passes through the outlet When it is at the tuyere, a Venturi effect will be generated to speed up the flow and achieve the effect of jetting. While spraying, a negative pressure is generated near the annular air outlet, which can attract the air near the annular air outlet to flow together, realize the circulation of indoor air, and effectively increase the air supply volume. Of course, the air guiding structure can also be arranged in any other way, as long as the setting way can make the air outlet width of the first air outlet 123 and/or the second air outlet 124 gradually narrow, and no more details are given here.

By setting the annular air outlet structure 12 on the top of the columnar housing 11, the annular air outlet structure 12 is provided with a first air outlet 123 and a second air outlet 124, and each of the first air outlet 123 and the second air outlet 124 is equipped with a baffle The mechanism makes the air conditioner have a brand-new air outlet structure and two air outlet forms, spray mode and diffusion mode, and users can flexibly choose the air outlet mode based on needs. Injection mode can achieve the effect of spraying air, with long range and larger air volume; in diffusion mode, air is supplied from the second air outlet 124 to both sides, and the air supply area is wide, which can form an enveloping airflow indoors and strengthen the circulation of indoor air. In addition, the setting of the annular air outlet makes the structure of the air conditioner novel, subverts the closed idea of traditional cabinet product iteration, and promotes the development and transformation of air conditioners. By fixedly connecting the water tank 21 to the bottom of the inner ring surface 121, the water mist atomized by the atomizer 22 can be directly mixed with the air flow discharged from the air outlet and sent to every corner of the room to ensure the humidification effect.

A specific embodiment of the water receiving tray of the present application will be described below with reference to FIG. 4A and FIG. 4B . Fig. 4A is a structural diagram of the first embodiment of the water receiving tray of the present invention; Fig. 4B is a structural diagram of the second embodiment of the water receiving tray of the present invention.

As shown in FIG. 4A and FIG. 4B , the water receiving tray 5 includes a circular tray 51 and an annular tray 52 arranged vertically up and down and communicated with each other through a drainage tube 53 . Specifically, in a more preferred embodiment, the circular disk 51 can be arranged above the annular disk 52 in the manner shown in FIG. 4A , and the outer edge of the circular disk 51 and the inner edge of the annular disk 52 There is a certain degree of coincidence in the vertical direction. Of course, the circular disk 51 can also be arranged below the annular disk 52 as shown in FIG. 4B , and there is a certain degree of overlap between the outer edge of the circular disk 51 and the inner edge of the annular disk 52 in the vertical direction.

The water receiving tray 5 adopts a split design in which the circular disk 51 and the annular disk 52 are arranged up and down, which skillfully solves the problem that the water receiving tray 5 cannot be arranged below when the evaporator 4 is arranged horizontally in this application, without affecting the air intake To achieve the collection of condensed water. Certainly, the specific form of the above-mentioned water receiving tray 5 is not limiting, and any form of improvement should fall within the scope of protection of the present application without departing from the upper and lower split design of the present application.

Next, referring to FIG. 5A and FIG. 5B , a specific implementation manner of the sterilization and purification module of the present application will be described. Among them, FIG. 5A is a front sectional view of the sterilization and purification module of the present invention; FIG. 5B is a top view of the sterilization and purification module of the present invention.

As shown in Figures 5A and 5B, the sterilization and purification module 7 is cake-shaped, which includes a HEPA filter layer 71, a cold catalyst filter layer 72, an anion germicidal lamp 73 and an ion converter 74, and the cold catalyst filter layer 72 is located at the top of the cake shape , the HEPA filter layer 71 is located at the bottom of the cake, the ion converter 74 is located at the center of the cake, and the negative ion germicidal lamps 73 are provided with multiple rings and surround the sides of the ion converter 74 .

Wherein, the HEPA filter layer 71 includes three layers (primary filter layer, charging layer, and electrostatic dust collection layer), and its removal efficiency for particles with a diameter below 0.3 microns can reach more than 99.97%.

The cold catalyst filter layer 72 can catalyze the reaction at normal temperature, decompose various harmful and odorous gases into harmless and tasteless substances under normal temperature and pressure, and transform from simple physical adsorption to chemical adsorption, decompose while adsorbing, and remove formaldehyde , benzene, xylene, toluene, TVOC and other harmful gases to generate water and carbon dioxide. In the catalytic reaction process, the cold catalyst itself does not directly participate in the reaction, and the cold catalyst does not change or lose after the reaction, and plays a long-term role. The cold catalyst itself is non-toxic, non-corrosive, and non-combustible, and the reaction products are water and carbon dioxide, which does not produce secondary pollution and greatly prolongs the service life of the adsorption material.

The ion converter 74 can generate a large amount of negative ions when it is powered on. Studies have shown that an appropriate amount of negative ions in the air can not only efficiently remove dust, sterilize, and purify the air, but also activate oxygen molecules in the air to form oxygen-carrying negative ions. Activate air molecules, improve human lung function, promote metabolism, enhance disease resistance, regulate the central nervous system, make people refreshed and full of vitality, etc.

Negative ion germicidal lamp 73 rings around the side of ion converter 74, it can irradiate and sterilize the air passing through sterilization and purification module 7, and because it adopts the arrangement mode around ion converter 74, it can play a wide range of irradiation. , The effect of sterilization without dead ends.

It should be noted that although the above-mentioned embodiment is described in conjunction with the sterilization and purification module 7 including the HEPA filter layer 71, the cold catalyst filter layer 72, the negative ion germicidal lamp 73 and the ion converter 74, those skilled in the art can One or more of them are selected as the reassembled sterilization and purification module 7 and installed in the indoor unit of the cabinet air conditioner. This combination does not deviate from the principle of the application, so it should fall within the scope of protection of the application.

Finally, referring to FIG. 6 , the working principle of the cabinet air conditioner indoor unit of the present invention is briefly described. Wherein, FIG. 6 is a working principle diagram of the cabinet-type air conditioner indoor unit in the first embodiment of the present invention.

As shown in Figure 6, when the indoor unit of the cabinet-type air conditioner is working, the digital turbine motor rotates to draw indoor air into the columnar enclosure 11 from the air inlet 111 at the bottom of the columnar enclosure 11, and the air is efficiently sterilized and purified by the sterilization and purification module 7 and then flows smoothly. The water receiving tray 5 arranged in a body, and after uniform heat exchange with the evaporator 4 arranged in a vortex shape, is sent into the air supply chamber by a digital turbine motor. The air that enters the air supply chamber is accelerated and sprayed into the room from the first air outlet 123 or the second air outlet 124 , and the air is mixed with the water mist atomized by the atomizer 22 during the spraying process.

It should be noted that although the above embodiment is described in conjunction with the humidifier 2 provided on the body 1, the sterilization and purification module 7, the water tray 5, the evaporator 4, and the air blower 3 provided in the body 1, the above-mentioned Not all of the features are necessary, and those skilled in the art can understand that, on the premise that the indoor unit of the cabinet air conditioner can be guaranteed to operate normally, the above-mentioned setting methods can be appropriately deleted to form a new embodiment. For example, one or all of the humidifying device 2 and the sterilizing and purifying module 7 can be deleted on the basis of the above-mentioned embodiments, so as to form a new cabinet-type air conditioner indoor unit.

Example 3

Referring to FIG. 7 to FIG. 9C , the second implementation manner of the cabinet air conditioner indoor unit of the present application will be described below.

First, referring to Fig. 7 and Fig. 8, the structure of the indoor unit of the cabinet air conditioner will be explained. Wherein, FIG. 7 is a structural diagram of a cabinet-type air conditioner indoor unit in a second embodiment of the present invention; FIG. 8 is a structural diagram of a fresh air module of the present invention.

As shown in Fig. 7 and Fig. 8, on the basis of the cabinet type air conditioner indoor unit in any setting form described in Embodiment 2, the cabinet type air conditioner indoor unit is also provided with a fresh air module 8, and the fresh air module 8 is arranged on the body 1 The lower part is connected with the body 1 , and the fresh air module 8 is provided with an air suction port 811 and an air exhaust port 812 , the air suction port 811 communicates with the outside through a pipeline, and the air exhaust port 812 communicates with the air inlet 111 of the body 1 .

By installing the fresh air module 8 on the indoor unit of the cabinet type air conditioner, the indoor unit of the cabinet type air conditioner can also introduce outdoor fresh air during operation, ensure the oxygen content of the indoor air, and solve many problems such as turbidity and poor quality of indoor air. And after introducing outdoor fresh air, it can also perform heat exchange treatment on the fresh air, reduce the fluctuation of indoor temperature, and improve user experience.

Referring to Fig. 7, in a more preferred embodiment, the fresh air module 8 is arranged between the body 1 and the base 6, and the fresh air modules 8 are respectively connected to the body 1 and the base 6 in rotation, such as the fresh air module 8 is connected to the body 1 and the base respectively. 6 are connected freely through ordinary bearings, or through damped rotary connectors such as rotary damping bearings. After being connected, a gap is formed between the body 1 and the fresh air module 8 , the air outlet 812 is set on the top of the fresh air module 8 , and the air inlet 111 is set at the bottom of the body 1 .

By forming a gap between the body 1 and the fresh air module 8, and setting the air inlet 111 at the bottom of the body 1, the area of the air inlet 111 is larger and the air intake is larger, which is conducive to improving the heat exchange effect and efficiency. By setting the air exhaust port 812 on the top of the fresh air module 8, the fresh air discharged from the air exhaust port 812 can directly enter the body 1 for heat exchange, reducing the fluctuation of indoor temperature and improving user experience. By rotating the fresh air module 8 with the body 1 and the base 6 respectively, the body 1 and the fresh air module 8 can rotate freely when the air conditioner is installed, which facilitates finding the best installation angle, reduces installation difficulty, and improves the applicability of the air conditioner.

7 and 8, in a preferred embodiment, the fresh air module 8 includes a cylindrical housing 81, a fresh air fan 82 and a variable speed drive mechanism 83 arranged in the cylindrical housing 81, and the variable speed drive mechanism 83 and the fresh air fan 82 is connected, so that drive fresh wind fan 82 variable-speed rotations. Specifically, the variable speed drive mechanism 83 includes a drive motor 831, an electric shift fork 833 and a plurality of gear sets 832 with different gear ratios. The driving wheels of the multiple gear sets 832 are fixedly connected to the output shaft of the drive motor 831. The multiple gear sets 832 The driven wheel is fixedly connected to the rotating shaft of the fresh air fan 82, and the electric shift fork 833 is mounted on one of the driving wheels, so that the meshing of different gear sets 832 can be realized by adjusting the extension length of the shift fork.

By setting the variable speed drive mechanism 83 in the fresh air module 8 to adjust the rotating speed of the fresh air fan 82, the application can also adjust the intake air volume of the fresh air, and in combination with the different wind speeds of the air blower 3, multiple air supply modes can be realized, greatly Improve the practicality of the air conditioner.

Of course, in addition to using the electric shift fork 833 to switch between different gear sets 832 , those skilled in the art can also use any other way to replace them, as long as the way can switch the gear sets 832 smoothly. For example, the meshing of different gear sets 832 can also be achieved by using two electric push rods to push the driving gear to move from two directions respectively. Furthermore, the speed adjustment of the fresh air fan 82 can also be realized by other means, such as by using a servo motor with an adjustable speed to drive the fresh air fan 82 to rotate through the gear set 832 .

Three different fresh air modes will be introduced below with reference to FIGS. 9A to 9C . Among them, FIG. 9A is a working principle diagram of the first fresh air mode of the cabinet-type air conditioner indoor unit in the second embodiment of the present invention; FIG. 9B is a second mode of the cabinet-type air conditioner indoor unit in the second embodiment of the present invention. Fig. 9C is a working principle diagram of the third fresh air mode of the cabinet air conditioner indoor unit in the second embodiment of the present invention.

As shown in Fig. 9A, in the first fresh air mode, the air supply fan 3 operates normally, and the fresh air fan operates at a speed lower than that of the air supply fan 3. At this time, the air entering the body 1 is divided into two parts, one part comes from the fresh air module 8 , and the other part comes from indoor air. This air supply method can take into account the circulation of indoor air and the introduction of fresh air.

As shown in Figure 9B, in the second fresh air mode, the air supply fan 3 operates normally, and the fresh air fan operates at a speed roughly equal to that of the air supply fan 3. At this time, the airflow entering the body 1 is all outdoor fresh air. The wind mode can heat exchange the fresh air while introducing the fresh air, and reduce the fluctuation of the indoor temperature.

As shown in Figure 9C, in the third fresh air mode, the air supply fan 3 operates normally, and the fresh air fan operates at a speed higher than that of the air supply fan 3. At this time, part of the outdoor fresh air enters the body 1 to participate in heat exchange, and the other part comes from The gap between the machine body 1 and the fresh air module 8 is sent into the room, and this air supply mode can take into account the introduction of fresh air and the stability of the indoor temperature to the greatest extent.

Those skilled in the art will appreciate that although some of the embodiments described herein include some features and not others that are included in other embodiments, combinations of features from different embodiments are meant to be within the scope of the invention. And form different embodiments. For example, in the claims of the present invention, any one of the claimed embodiments can be used in any combination.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings, but those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims (7)

1. A cabinet-type air conditioner indoor unit, characterized in that the cabinet-type air conditioner indoor unit comprises a body, the body is provided with an air inlet and a first air outlet, and the first air outlet is provided with a humidifying device, An air supply fan, an evaporator and a water receiving tray are arranged in the body, and the water receiving tray is arranged below the evaporator; Wherein, the evaporator includes a coiled tube and fins arranged on the coiled tube, and the center line of the coiled tube is arranged in a spiral form from top to bottom around a vertical axis; The machine body includes a cylindrical shell and an annular air outlet structure arranged on the top of the cylindrical shell, the air supply fan, the evaporator and the water receiving tray are arranged in the cylindrical shell, and the annular air outlet structure the first air outlet is formed; The annular air outlet structure includes an inner ring surface and an outer ring surface. The outer ring surface is sleeved on the outside of the inner ring surface and surrounds the inner ring surface to form an air outlet cavity. The front end of the outer ring surface The first air outlet is formed with the front end of the inner ring surface, the rear end of the outer ring surface is closed and connected with the rear end of the inner ring surface, and the bottom end of the outer ring surface is also provided with a ventilation hole, the air outlet chamber communicates with the columnar housing through the ventilation hole; The humidifying device includes a water tank and an atomizer arranged in the water tank, and the water tank is fixedly connected to the bottom of the inner ring surface; The cabinet-type air conditioner indoor unit also includes a fresh air module, the fresh air module is arranged under the body and connected to the body, the fresh air module is provided with an air suction port and an air exhaust port, and the air suction port passes through the pipeline It communicates with the outside, and the air outlet communicates with the air inlet; The fresh air module includes a cylindrical housing, a fresh air fan and a variable speed drive mechanism arranged in the cylindrical housing, and the variable speed drive mechanism is connected with the fresh air fan so as to drive the fresh air fan to rotate; A gap is formed between the body and the fresh air module, the air outlet is arranged on the top of the fresh air module, and the air inlet is arranged at the bottom of the body. 2 . The cabinet-type air conditioner indoor unit according to claim 1 , wherein the distance between the center line and the vertical axis gradually decreases from top to bottom. 3. The cabinet-type air conditioner indoor unit according to claim 1, wherein the water receiving tray includes a circular tray and an annular tray, and the circular tray and the annular tray are vertically arranged vertically, and The two are connected through a drainage tube. 4. The cabinet-type air conditioner indoor unit according to claim 1, wherein a second air outlet is provided on the outer ring surface, the first air outlet is equipped with a first flap mechanism, and the second air outlet The second air outlet is equipped with a second flap mechanism, the first flap mechanism is set to close or open the first air outlet when in action, and the second flap mechanism is configured to close or open the first air outlet when in action. Second air outlet. 5. The cabinet air conditioner indoor unit according to claim 1, wherein the air blower is a digital turbine motor. 6 . The cabinet-type air conditioner indoor unit according to claim 1 , wherein the air conditioner indoor unit further comprises a base, and the body is rotatably connected to the base. 7 . The cabinet-type air conditioner indoor unit according to claim 6 , wherein a gap is formed between the body and the base, and the air inlet is arranged at the bottom of the body.

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