CN217131951U - Air supply arrangement and dry wardrobe - Google Patents

Abstract

The utility model relates to the field of household articles, and discloses an air supply device and a clothes drying cabinet, wherein the air supply device comprises a shell, a driving motor, a fan and a heat exchanger, the shell is provided with a cavity, and the outer surface of the shell is provided with an air inlet and an air outlet which are communicated with the cavity; the driving motor is arranged in the cavity; the fan is arranged in the cavity and is in transmission connection with a power output shaft of the driving motor, the driving motor drives the fan to rotate so that outside air is sucked into the cavity from the air inlet and then is sent out from the air outlet, and the air inlet, at least one part of the cavity and the air outlet are limited to form an air flow channel; the heat exchanger is arranged in the airflow channel, the heat exchanger arches from inside to outside, the peripheral wall of the heat exchanger faces the bottom wall of the cavity, and the peripheral wall of the heat exchanger is provided with a water condensation end; wherein, a buffer convex strip is convexly formed on the bottom wall of the cavity, and a buffer surface opposite to the position of the condensed water end is formed on the buffer convex strip; the bottom of the shell is provided with a drain hole communicated with the cavity.

Description

Air supply arrangement and dry wardrobe

Technical Field

The utility model relates to a household articles for use technical field especially relates to an air supply arrangement and dry wardrobe.

Background

In general, the washed laundry is dried in the sun and stored in a wardrobe. However, the space used in some residential areas is limited, for example, in apartments or small residential houses, and it is difficult to dry washed laundry by drying in the sun, and the laundry is usually dried by a washing and drying integrated washing machine or dryer. However, the washing and drying integrated washing machine has disadvantages of high use cost, additional occupation of a use space of the dryer, and the like, and thus is difficult to be widely applied to a home location such as an apartment.

Chinese patent publication No. CN215405204U discloses a clothes drying cabinet applicable to intelligent residences, which is characterized in that an air supply device and an air direction adjusting structure are additionally arranged on the existing clothes drying cabinet, and the air supply device and the air direction adjusting structure are utilized to achieve the purpose of quickly drying clothes in the clothes drying cabinet, and do not occupy additional use space. However, the air supply device is the existing air conditioner indoor unit, when the air supply device is in a cooling mode, the heat exchanger inside the air supply device can generate condensed water, the condensed water freely drops under the action of gravity and generates water drop sound, so that the clothes drying cabinet generates large noise, and the use comfort of a user is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an air supply arrangement, it can reduce the noise that the condensation water droplet falls behind the production, reaches the purpose of the silence of making an uproar of falling, improves user's use comfort. In addition, the utility model aims at also providing a dry wardrobe that adopts above-mentioned air supply arrangement.

In order to achieve the above object, the present invention provides, in a first aspect, an air supply device, including:

the air conditioner comprises a shell, a fan and a controller, wherein the shell is provided with a cavity, and the outer surface of the shell is provided with an air inlet and an air outlet which are communicated with the cavity;

the driving motor is arranged in the cavity;

the fan is arranged in the cavity and is in transmission connection with a power output shaft of the driving motor, the driving motor drives the fan to rotate so that outside air is sucked into the cavity from the air inlet and then sent out from the air outlet, and an air flow channel is formed by limiting the air inlet, at least one part of the cavity and the air outlet; and

the heat exchanger is arranged in the airflow channel, the heat exchanger is arched from inside to outside, the peripheral wall of the heat exchanger faces the bottom wall of the cavity, and the peripheral wall of the heat exchanger is provided with a water condensation end;

the bottom wall of the cavity is convexly provided with a buffer convex strip, and the buffer convex strip is provided with a buffer surface opposite to the position of the condensed water end; the bottom of the shell is provided with a drain hole communicated with the cavity.

In some embodiments, the peripheral wall of the heat exchanger has a plurality of the water condensation ends, the number of the buffer ribs is at least two, and the plurality of the buffer ribs and the plurality of the water condensation ends correspond to each other one to one.

In some embodiments, the bottom wall of the cavity is gradually inclined downward in the front-rear direction, the buffer rib extends in the left-right direction, and the drain hole is disposed near the rear side of the housing.

In some embodiments, the buffer surface is a plane shape gradually inclined from top to bottom.

In some embodiments, the buffer rib is integrally formed with the housing.

In some embodiments, the housing includes an upper housing and a lower housing sequentially arranged in an up-down direction, the upper housing and the lower housing are assembled to form the cavity, the air inlet is opened at a side portion of the lower housing, and the air outlet is opened at a top portion of the upper housing; the buffering convex strip is arranged in the lower shell.

In some embodiments, the upper housing and the lower housing are each a polystyrene foam piece.

In some embodiments, further comprising:

the volute is arranged in the cavity, a mounting groove is formed in the volute, the opening of the mounting groove faces the air inlet, and a penetrating opening which faces the air outlet and is communicated with the mounting groove is formed in the outer side of the volute;

the fan is a cross-flow fan, the cross-flow fan is arranged in the mounting groove, and the driving motor is fixedly mounted on the volute; the heat exchanger cover is arranged at the opening of the mounting groove.

In some embodiments, a filter assembly is mounted at the air inlet.

The utility model discloses the second aspect provides a dry wardrobe, include:

the clothes storage cabinet comprises a cabinet body, a cabinet body and a control device, wherein the cabinet body is provided with a clothes storage cavity, and the cabinet body is provided with a vent communicated with the clothes storage cavity; and

the air supply device is arranged on the outer surface of the cabinet body, and the air outlet is communicated with the ventilation opening.

Compared with the prior art, the utility model discloses an air supply arrangement and dry wardrobe, its beneficial effect lies in:

the comdenstion water that the heat exchanger produced is accepted to the buffering face of buffering sand grip on the diapire through the cavity, the buffering face of slope has reduced the comdenstion water impact force to buffering sand grip, thereby the noise of comdenstion water droplet lagging production has been reduced, simultaneously the buffering face is discharged from the wash port behind the diapire with comdenstion water drainage to the cavity, avoided the comdenstion water directly to drip perpendicularly and beat the diapire at the cavity, the noise that the comdenstion water produced has reduced greatly, play the effect of the silence of making an uproar that falls, thereby improve user's use comfort.

Drawings

Fig. 1 is a schematic structural view of an air supply device according to some embodiments of the present invention;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 3 is a schematic diagram of FIG. 1, taken apart;

fig. 4 is a schematic structural view of a volute and a heat exchanger according to some embodiments of the present invention;

FIG. 5 is a schematic diagram of FIG. 4, taken apart;

fig. 6 is a schematic structural view of a clothes drying cabinet according to some embodiments of the present invention.

In the figure, the position of the upper end of the main shaft,

10. an air supply device;

1. a housing; 11. a cavity; 12. an air inlet; 13. an air outlet; 14. buffering the convex strips; 141. a buffer surface; 15. a drain hole; 16. an upper housing; 17. a lower housing;

2. a heat exchanger; 21. a water condensation end;

3. a volute; 31. mounting grooves; 32. perforating;

20. a cabinet body; 201. a clothes storage cavity; 202. and a vent.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-3, an embodiment of the present invention provides an air supply device 10, which is installed on a clothes drying cabinet, and generates air flow inside the clothes drying cabinet to dry clothes inside the clothes drying cabinet. Specifically, the air blowing device 10 includes a housing 1, a driving motor (not shown), a fan (not shown), and a heat exchanger 2.

Wherein, the shell 1 has a cavity 11, and the outer surface of the shell 1 is provided with an air inlet 12 and an air outlet 13 which are communicated with the cavity 11. The air inlet 12 and the air outlet 13 are respectively arranged at different sides of the housing 1, for example, the air inlet 12 is arranged at the top of the housing 1, and the air outlet 13 is arranged at the bottom of the housing 1; also for example the air inlet 12 is located at the side of the housing 1 and the air outlet 13 is located at the top of the housing 1. Therefore, the position of the air inlet 12 and the air outlet 13 on the housing 1 according to the embodiment of the present invention is specifically designed adaptively according to the installation position of the air supply device 10 on the clothes drying cabinet.

It should be noted that the top or the upper part of the embodiment of the present invention is the highest point of the dry wardrobe after being placed still, and the bottom or the lower part of the embodiment of the present invention is the lowest point of the dry wardrobe after being placed still, so the up-down direction is the extending direction of the dry wardrobe from the highest point to the lowest point; the utility model discloses "preceding" is one side that the user is close to for dry wardrobe, the utility model discloses "back" keeps away from one side of user for dry wardrobe, and consequently the fore-and-aft direction is the extending direction of dry wardrobe from one side near the user toward keeping away from one side of user.

Further, the utility model discloses shell 1 is formed by a plurality of casings amalgamation, and the cavity 11 to shell 1 is assembled with other parts of air supply arrangement 10 to the assembler or maintainer of being convenient for. For example, the housing 1 may be formed by two housings being combined together in the up-down direction, or may be formed by two housings being combined together in the left-right direction, which is not limited herein. As preferably, the utility model discloses a shell 1 includes last casing 16 and the lower casing 17 that sets gradually along upper and lower direction, and the one side of going up casing 16 and lower casing 17 and facing each other is formed with the slotted hole to make last casing 16 and lower casing 17 amalgamation vacuole formation 11, air intake 12 is seted up in the rear portion of lower casing 17, and air outlet 13 is seted up at the top of last casing 16, and wash port 15 is located the rear side of lower casing 17.

Further, in some embodiments, the upper housing 16 and the lower housing 17 are respectively made of polystyrene foam, and have the characteristics of small water absorption, good heat preservation, light weight, and high mechanical strength, so that the housing 1 has excellent mechanical properties. For example, the upper shell 16 and the lower shell 17 are respectively made into an integrated piece by adopting a foaming process, the interior of the integrated piece is cellular, the integrated piece has the characteristics of high compression resistance, no water absorption, water vapor permeation resistance, wear resistance and the like, the overall structural strength is high, and the shell 1 is ensured not to deform.

Furthermore, the driving motor, the fan and the heat exchanger 2 are respectively arranged in the cavity 11, the fan is in transmission connection with a power output shaft of the driving motor, a negative pressure surface of the fan faces the air inlet 12, and a positive pressure surface of the fan faces the air outlet 13, so that when the driving motor drives the fan to rotate, outside air is sucked into the cavity 11 from the air inlet 12 and then is sent out from the air outlet 13, and the purpose of sending the outside air into the clothes drying cabinet is achieved. The air inlet 12, at least a part of the cavity 11 and the air outlet 13 are limited to form an airflow channel, the heat exchanger 2 is arranged in the airflow channel, so that in the process that outside air is sucked into the airflow channel and flows, the air exchanges heat (refrigerating or heating) with the heat exchanger 2 to become cold air or hot air, the cold air or the hot air is finally sent out from the air outlet 13, the air drying efficiency of clothes is accelerated by using the cold air or the hot air, and meanwhile, the generated cold air or the generated hot air flows back to the indoor environment, so that the purpose of refrigerating or heating the indoor environment is achieved.

It can be understood that the embodiment of the present invention does not limit the specific structure and transmission of the driving motor and the fan, for example, the driving motor may be connected with the fan in a transmission manner by gears or worm gears; the fan may be an axial fan, a cross flow fan or other fans as long as the external air is sucked from the air inlet 12 and sent out from the air outlet 13. For example, the driving motor is a speed reducing motor, and the fan is sleeved on the power output shaft of the driving motor in an interference fit or slot key fit mode, so that the fan synchronously rotates along with the power output shaft of the driving motor.

Further, in some embodiments, the air supply device 10 according to the embodiment of the present invention further includes a spiral case 3, the spiral case 3 is disposed in the cavity 11, the spiral case 3 is formed with a mounting groove 31, an opening of the mounting groove 31 faces the air inlet 12, and a through opening 32 facing the air outlet 13 and communicating with the mounting groove 31 is disposed on an outer side of the spiral case 3; the fan is a cross-flow fan, the cross-flow fan is arranged in the mounting groove 31, and the driving motor is fixedly mounted on the volute 3; the heat exchanger 2 covers an opening of the installation groove 31. When the driving motor drives the cross flow fan to rotate, after being sucked from the air inlet 12, the outside air is changed into cold air or hot air through the heat exchange effect (refrigeration or heating) of the heat exchanger 2 and enters the installation groove 31, and then the cold air or the hot air is sent out from the air outlet 13 through the through opening 32.

Further, as shown in fig. 1-2, the heat exchanger 2 according to the embodiment of the present invention is arched from inside to outside, the outer peripheral wall of the heat exchanger 2 faces the bottom wall of the cavity 11, and the outer peripheral wall of the heat exchanger 2 has a water condensation end 21; wherein, a buffer convex strip 14 is convexly formed on the bottom wall of the cavity 11, and a buffer surface 141 opposite to the position of the water condensation end 21 is formed on the buffer convex strip 14; the bottom of the shell 1 is provided with a water discharge hole 15 communicated with the cavity 11. It should be noted that "inside" of the heat exchanger 2 of the embodiment of the present invention means one side of the heat exchanger 2 close to the fan, and "outside" of the heat exchanger 2 of the embodiment of the present invention means one side of the heat exchanger 2 away from the fan.

When heat exchanger 2 is in the mode of refrigeration, 2 surfaces of heat exchanger produce the comdenstion water and assemble to condensate end 21 under the effect of gravity, after the comdenstion water on condensate end 21 gathers the certain degree, drip to the buffering face 141 of buffering sand grip 14 under the effect of gravity, because buffering face 141 forms an contained angle that is less than 90 with the drippage direction of comdenstion water, the speed of dripping of comdenstion water has been slowed down in order to reduce the impact force of comdenstion water droplet to buffering sand grip 14, thereby the noise that the comdenstion water droplet lags behind the production has been reduced, discharge from wash port 15 behind the diapire that buffering face 141 drains comdenstion water drainage to cavity 11 simultaneously, the diapire at cavity 11 has been avoided the comdenstion water directly to drip perpendicularly, the noise that the comdenstion water produced has been reduced greatly, play the effect of making an uproar falls.

It should be noted that the heat exchanger 2 according to the embodiment of the present invention has the same structure as the heat exchanger 2 of the wall-mounted air conditioner indoor unit in the prior art, and the description thereof is omitted here. In some embodiments, as shown in fig. 1-2, the outer peripheral wall of the heat exchanger 2 has a plurality of water condensation ends 21, the number of the buffer ribs 14 is at least two, and the plurality of buffer ribs 14 correspond to the plurality of water condensation ends 21 one by one. Specifically, the positions of the plurality of buffering convex strips 14 and the plurality of condensed water ends 21 correspond to each other, so that condensed water generated by the plurality of condensed water ends 21 respectively drops onto the buffering surfaces 141 of the plurality of buffering convex strips 14, the condensed water generated on the heat exchanger 2 is buffered by the buffering surfaces 141 of the plurality of buffering convex strips 14, and the noise reduction effect is enhanced.

In some embodiments, as shown in fig. 2, the bottom wall of the cavity 11 is gradually inclined downward in the front-rear direction, the buffer ribs 14 extend in the left-right direction, and the drain holes 15 are provided near the rear side of the housing 1. Specifically, the heat exchanger 2 extends in the left-right direction, so that the condensed water on the heat exchanger 2 drops onto the buffer surfaces 141 of the buffer ribs 14 from the condensed water ends 21, respectively. When the condensed water drops to the buffer surface 141 and is drained to the bottom wall of the cavity 11 along the buffer surface 141, the condensed water is gathered to the rear side of the bottom wall of the cavity 11 and is drained from the drain hole 15 because the bottom wall of the cavity 11 is inclined downward in the front-rear direction. The drainage hole 15 may be in communication with the bottom wall of the cavity 11, or in communication with the bottom of the side wall of the cavity 11.

In some embodiments, as shown in fig. 2, the buffer surface 141 is a plane shape gradually inclined from top to bottom, so that an impact angle between the condensed water and the buffer surface 141 is less than 90 °, thereby reducing noise generated by the impact. In other embodiments, the buffer surface 141 is in the shape of an arc surface gradually recessed inward from top to bottom.

In some embodiments, the buffer ribs 14 are integrally formed with the housing 1, for example, by using polystyrene foam and a foaming process, so that the overall structural strength is high and the structure is not deformed.

Furthermore, the utility model discloses lower casing 17's inner wall surface can also be equipped with the water proof membrane (not shown in the figure), and the water proof membrane adopts waterproof materials such as PP or ABS material to form through the preparation of plastic uptake molding process, and the lower casing 17 of water proof membrane and polystyrene material forms the integral structure through the foaming process afterwards, prevents through the water proof membrane that prevention of seepage water ability is stronger that the comdenstion water from condensing under casing 17 after passing casing 17 the bottom of casing 17, and whole cost is cheaper.

In some embodiments, a filter assembly is mounted at the intake vent 12. The filter assembly may be detachably mounted to the air inlet 12, and the air inlet 12 is covered by the filter assembly to filter and deodorize the air sucked into the cavity 11. The filter assembly is a commonly used filter structure, and includes, for example, a filter screen, activated carbon, or other substance that adsorbs dust or purifies air.

Referring to fig. 6, an embodiment of the present invention further provides a clothes drying cabinet, which includes a cabinet body 20 and the air supply device 10; the cabinet body 20 is provided with a clothes storage cavity 201, and the cabinet body 20 is provided with a ventilation opening 202 communicated with the clothes storage cavity 201; the air supply device 10 is installed on the outer surface of the cabinet body 20, and the air outlet 13 is communicated with the air vent 202. The air supply device 10 may be mounted at the top or bottom of the cabinet 20, and is specifically mounted adaptively according to the position of the air outlet 13 on the housing 1. The air outlet 13 and the ventilation opening 202 may be in direct communication or indirect communication, for example, the housing 1 is installed near the ventilation opening 202 of the cabinet 20 and the portion of the housing 1 having the air outlet 13 is inserted into the ventilation opening 202, so that the air outlet 13 is in direct communication with the ventilation opening 202; for example, the outer shell 1 is installed at another position at the bottom of the cabinet body 20, and the air outlet 13 is indirectly connected with the ventilation opening 202 through an air duct, so that after the outside air of the clothes drying cabinet is sucked into the outer shell 1 from the air inlet 12, cold air or hot air is formed and is sequentially sent into the cabinet body 20 from the air outlet 13 and the ventilation opening 202, and the purpose of drying the clothes in the cabinet body 20 is achieved. In order to realize the circulation of the airflow, an exhaust port for the outflow of the air is formed at the top or the side of the cabinet 20.

To sum up, the embodiment of the utility model provides an air supply arrangement 10 and dry wardrobe, its buffering face 141 through buffering sand grip 14 on the diapire of cavity 11 accepts the comdenstion water that heat exchanger 2 produced, the buffering face 141 of slope has reduced the comdenstion water and has cushioned sand grip 14's impact force, thereby the noise of comdenstion water droplet production behind has been reduced, simultaneously buffering face 141 discharges from wash port 15 behind the diapire of comdenstion water drainage to cavity 11, avoided the comdenstion water directly to drip perpendicularly and beat at the diapire of cavity 11, the noise that the comdenstion water produced has been reduced greatly, play the effect of the silence of making an uproar, thereby improve user's use comfort.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An air supply device, comprising:

the air conditioner comprises a shell, a fan and a controller, wherein the shell is provided with a cavity, and the outer surface of the shell is provided with an air inlet and an air outlet which are communicated with the cavity;

the driving motor is arranged in the cavity;

the fan is arranged in the cavity and is in transmission connection with a power output shaft of the driving motor, the driving motor drives the fan to rotate so that outside air is sucked into the cavity from the air inlet and then sent out from the air outlet, and an air flow channel is formed by limiting the air inlet, at least one part of the cavity and the air outlet; and

the heat exchanger is arranged in the airflow channel, the heat exchanger is arched from inside to outside, the peripheral wall of the heat exchanger faces the bottom wall of the cavity, and the peripheral wall of the heat exchanger is provided with a water condensation end;

the bottom wall of the cavity is convexly provided with a buffer convex strip, and the buffer convex strip is provided with a buffer surface opposite to the position of the condensed water end; the bottom of the shell is provided with a drain hole communicated with the cavity.

2. The air supply device according to claim 1, wherein the outer peripheral wall of the heat exchanger has a plurality of the water condensation ends, the number of the buffer ribs is at least two, and the plurality of the buffer ribs correspond to the plurality of the water condensation ends one by one.

3. The blowing apparatus as claimed in claim 1, wherein a bottom wall of said cavity is inclined gradually downward in a front-rear direction, said buffering ridge extends in a left-right direction, and said drain hole is provided near a rear side of said casing.

4. The air supply device according to any one of claims 1 to 3, wherein the buffer surface is a plane surface which is inclined gradually from top to bottom.

5. The blowing device according to any one of claims 1 to 3, wherein the buffer ribs are formed integrally with the casing.

6. The air supply arrangement as claimed in claim 1, wherein the housing includes an upper housing and a lower housing arranged in sequence in an up-down direction, the upper housing and the lower housing are assembled to form the cavity, the air inlet is provided at a side portion of the lower housing, and the air outlet is provided at a top portion of the upper housing; the buffering convex strip is arranged in the lower shell.

7. The air supply arrangement as recited in claim 6, wherein each of the upper and lower housings is a polystyrene foam.

8. The air supply arrangement as recited in claim 1, further comprising:

the volute is arranged in the cavity, a mounting groove is formed in the volute, the opening of the mounting groove faces the air inlet, and a penetrating opening which faces the air outlet and is communicated with the mounting groove is formed in the outer side of the volute;

the fan is a cross-flow fan, the cross-flow fan is arranged in the mounting groove, and the driving motor is fixedly mounted on the volute; the heat exchanger cover is arranged at the opening of the mounting groove.

9. The air supply arrangement as recited in claim 1, wherein a filter assembly is mounted at said air inlet.

10. A clothes drying cabinet, comprising:

the clothes storage cabinet comprises a cabinet body, a cabinet body and a control device, wherein the cabinet body is provided with a clothes storage cavity, and the cabinet body is provided with a vent communicated with the clothes storage cavity; and

the air supply device as claimed in any one of claims 1 to 9, wherein the air supply device is mounted on an outer surface of the cabinet body, and the air outlet is communicated with the ventilation opening.

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