CN218721942U - Dehumidifier - Google Patents

Abstract

The utility model belongs to the technical field of dehumidification, and relates to a dehumidifier; the dehumidifier comprises a shell, wherein a controller, a compressor and an air draft unit are arranged in the shell; the shell is internally provided with a first heat dissipation channel and a second heat dissipation channel, the controller is positioned on the first heat dissipation channel, the compressor is positioned on the second heat dissipation channel, and the air draft unit is arranged at the outlets of the first heat dissipation channel and the second heat dissipation channel. The heat generated by the controller is discharged to the outlet of the first heat dissipation channel through the first heat dissipation channel, and the heat generated by the compressor is discharged to the outlet of the second heat dissipation channel through the second heat dissipation channel; then the heat is discharged out of the shell under the action of the air draft unit; the utility model discloses first heat dissipation channel dispels the heat to the controller, dispels the heat to the compressor through second heat dissipation channel, and two heat dissipation channel combined action can discharge the heat in the dehumidifier high-efficiently, guarantee the normal operating of dehumidifier.

Description

Dehumidifier

Technical Field

The utility model belongs to the technical field of the dehumidification, a dehumidifier is related to.

Background

The dehumidifier is a device for drying humid air, and is widely applied to families and industrial places; compared with a fixed frequency, after the variable-frequency dehumidifier is subjected to variable-frequency speed regulation, a corresponding torque limit can be set to protect the machine from being damaged, and the continuity of dehumidification and the reliability of a product are ensured; in addition, the variable frequency dehumidifier has the advantage of energy conservation, so the dehumidifier applying the variable frequency compressor is more and more widely applied.

The frequency conversion compressor has higher power, so that components in the electric control box can generate larger heat, and meanwhile, the compressor is a main heat source component of the dehumidifier, and the temperature of the compressor gradually rises along with the operation of the dehumidifier to emit high heat; if the heat in the electric control box and the compressor cannot be dissipated in time, components in the electric control box are easy to lose efficacy and even burn, and the compressor is easy to stop, so that the working fault of the dehumidifier is caused.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a dehumidifier dispels the heat to the controller through first heat dissipation channel, dispels the heat to the compressor through second heat dissipation channel, and two heat dissipation channel combined action can discharge the heat in the dehumidifier high-efficiently, guarantee the normal operating of dehumidifier.

In order to solve the above problem, according to an aspect of the present disclosure, an embodiment of the present disclosure provides a dehumidifier including a housing, wherein a controller, a compressor, and an air pumping unit are disposed in the housing; the shell is internally provided with a first heat dissipation channel and a second heat dissipation channel, the controller is positioned on the first heat dissipation channel, the compressor is positioned on the second heat dissipation channel, and the air draft unit is arranged at the outlets of the first heat dissipation channel and the second heat dissipation channel.

In some embodiments, a vertical plate is arranged at the bottom inside the shell, a first heat dissipation cavity is formed between the vertical plate and a panel of the shell, and the controller is fixed on the side wall of the vertical plate and is positioned in the first heat dissipation cavity; a second heat dissipation cavity is formed between the vertical plate and the other panel of the shell, and the compressor is located in the second heat dissipation cavity.

In some embodiments, the controller includes an electrical control box and an electrical control box cover, and the electrical control box is sealed in the electrical control box cover.

In some embodiments, the first heat dissipation channel comprises a first drainage hole formed in the bottom of the shell, a wind direction hole formed in the electric control box cover, and a second drainage hole formed in the electric control box; air in proper order through first drainage hole with in the wind direction hole back gets into the electric control box lid, takes away the heat of electric control box, flows through second drainage hole.

In some embodiments, the first heat dissipation channel further includes a wind guiding groove, the wind guiding groove is formed on the vertical plate, and the position of the wind guiding groove corresponds to the position of the second drainage hole.

In some embodiments, the first heat dissipation channel further includes a heat sink, the vertical plate has a notch, the heat sink is fixed in the notch, and the heat sink is located in the second heat dissipation cavity and tightly attached to the controller.

In some embodiments, the second heat dissipation channel comprises a compressor heat dissipation channel and a radiator heat dissipation channel, and the compressor heat dissipation channel and the radiator heat dissipation channel are both located in the second heat dissipation cavity.

In some embodiments, the heat sink includes a plurality of fins arranged side by side with a gap for air circulation formed between adjacent fins.

In some embodiments, the bottom of the shell is provided with a first air inlet hole, and the first air inlet hole and the radiator are arranged in an up-and-down corresponding mode; the first air inlet hole and the gap form a heat dissipation channel of the radiator.

In some embodiments, the bottom of the shell is also provided with a second air inlet hole, and the second air inlet hole corresponds to a gap between the compressor and another panel of the shell; the second air inlet hole and the gap form a compressor heat dissipation channel.

In some embodiments, the air draft unit comprises a driving motor, a fan blade and an air duct, an output shaft of the driving motor is connected with the fan blade, the fan blade is located at an outlet end of the air duct, and the air duct is fixed on the vertical plate and used for exhausting hot air at the outlets of the first heat dissipation channel and the second heat dissipation channel.

In some embodiments, the dehumidifier further comprises a heat exchanger disposed within the housing by a support plate.

In some embodiments, a water pan is arranged in the supporting plate, the water pan is positioned below the heat exchanger and used for receiving condensed water generated by the heat exchanger, and the water pan is communicated with the outside through a drain pipe.

Compared with the prior art, the utility model discloses a dehumidifier has following beneficial effect at least:

in the working process of the dehumidifier provided by the utility model, the heat generated by the controller is discharged to the outlet of the first heat dissipation channel through the first heat dissipation channel, and in the process, the controller is effectively cooled, and the conditions of component failure and burnout can not occur; the heat generated by the compressor is discharged to the outlet of the second heat dissipation channel through the second heat dissipation channel, and in the process, the compressor is effectively cooled, so that the fault cannot occur; the outlet ends of the first heat dissipation channel and the second heat dissipation channel are positioned in a space at the upper part of the compressor, and the space is provided with an air draft unit, so that heat is discharged out of the shell under the action of the air draft unit; that is to say, the utility model provides an among the dehumidifier, dispel the heat to the controller through first heat dissipation channel, dispel the heat to the compressor through second heat dissipation channel, two heat dissipation channel combined action can discharge the heat in the dehumidifier high-efficiently, guarantee the normal operating of dehumidifier.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a dehumidifier according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural diagram of a chassis in a dehumidifier according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a controller in a dehumidifier according to an embodiment of the present invention;

fig. 5 is a schematic structural view of another direction of the dehumidifier according to the embodiment of the present invention;

fig. 6 is a schematic structural view of another direction of the dehumidifier according to the embodiment of the present invention.

Wherein: 1. a housing; 2. a controller; 3. a compressor; 4. an air draft unit; 7. a heat exchanger; 8. a support plate; 11. a vertical plate; 12. a chassis; 21. an electronic control box; 22. an electric control box cover; 41. a fan blade; 42. an air duct; 51. a first drainage aperture; 52. a wind direction hole; 53. a second drainage aperture; 54. a wind guide groove; 55. a heat sink; 56. a third drainage aperture; 61. a first air inlet hole; 62. a second air inlet hole; 81. a water pan; 82. and a water discharge pipe.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given with reference to the accompanying drawings and preferred embodiments, in order to explain the detailed embodiments, structures, features and effects of the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the description of the present invention, it is to be understood that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order; the terms "vertical," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "horizontal," and the like refer to an orientation or positional relationship relative to an orientation or positional relationship shown in the drawings, which are used for convenience in describing the present invention, and do not imply that the referenced device or element must have a particular orientation or position, and therefore should not be considered as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present embodiment provides a dehumidifier, as shown in fig. 1, 5 and 6, the dehumidifier includes a housing 1, a controller 2, a compressor 3 and an air draft unit 4 are disposed in the housing 1; the shell 1 is internally provided with a first heat dissipation channel and a second heat dissipation channel, the controller 2 is positioned on the first heat dissipation channel, the compressor 3 is positioned on the second heat dissipation channel, and the air draft unit 4 is arranged at the outlets of the first heat dissipation channel and the second heat dissipation channel.

Specifically, the housing 1 in this embodiment is a hollow cube structure, as shown in fig. 1, and is formed by enclosing a chassis 12, a front panel, a rear panel, a first side surface, a second side surface, and a top surface; the inner cavity of the controller is internally provided with dehumidifying parts, a dehumidifying main part compressor 3 is fixed on the central position of the chassis 12, and the controller 2 is arranged on the position close to the front panel; of course, the specific positions of the above components are not limited in this embodiment, and are within the scope of the present embodiment as long as the corresponding functions can be achieved.

The shell 1 of the embodiment is internally provided with a first heat dissipation channel and a second heat dissipation channel, wherein inlet ends of the first heat dissipation channel and the second heat dissipation channel are both arranged on the chassis 12, outlet ends of the first heat dissipation channel and the second heat dissipation channel are combined together to form a space above the compressor 3, and an air draft unit 4 is arranged in the space; therefore, in the working process of the dehumidifier, the heat generated by the controller 2 is discharged to the outlet of the first heat dissipation channel through the first heat dissipation channel, and in the process, the controller 2 is effectively cooled, so that the conditions of component failure and burning can not occur; the heat generated by the compressor 3 is discharged to the outlet of the second heat dissipation channel through the second heat dissipation channel, and in the process, the compressor 3 is effectively cooled, so that the fault cannot occur; the outlet ends of the first heat dissipation channel and the second heat dissipation channel are both positioned in a space above the compressor 3, and the space is provided with the air exhaust unit 4, so that heat is exhausted out of the shell 1 under the action of the air exhaust unit 4; that is to say, in the dehumidifier provided in this embodiment, the first heat dissipation channel dissipates heat to the controller 2, the second heat dissipation channel dissipates heat to the compressor 3, and the two heat dissipation channels work together to efficiently dissipate heat in the dehumidifier, thereby ensuring normal operation of the dehumidifier.

In a specific embodiment: as shown in fig. 2, a vertical plate 11 is disposed at the bottom inside the housing 1, a first heat dissipation cavity is formed between the vertical plate 11 and a panel of the housing 1, and the controller 2 is fixed on a side wall of the vertical plate 11 and located in the first heat dissipation cavity; a second heat dissipation cavity is formed between the vertical plate 11 and the other panel of the shell 1, and the compressor 3 is positioned in the second heat dissipation cavity.

Specifically, one end of the vertical plate 11 is fixedly connected with the first side face, the other end of the vertical plate 11 is fixedly connected with the second side face, and the height of the vertical plate 11 is lower than the heights of the first side face and the second side face, so that the vertical plate 11 divides the space in the housing 1, one of the spaces is a first heat dissipation cavity formed between the vertical plate 11 and the front panel, and the first heat dissipation cavity is a main component of the first heat dissipation channel; a second heat dissipation cavity is formed by the vertical plate 11 and the rear panel, and the second heat dissipation cavity is a main component of the second heat dissipation channel; however, since the height of the vertical plate 11 is lower than the height of the first side and the second side, the spaces above the first heat dissipation chamber and the second heat dissipation chamber are communicated, and the air draft unit 4 is located in the spaces.

The vertical plate 11 can be disposed in various ways, such as directly fixed on the bottom plate 12, or hung on the top surface.

In a specific embodiment: as shown in fig. 2 and 3, the controller 2 includes an electrical control box 21 and an electrical control box cover 22, and the electrical control box 21 is sealed in the electrical control box cover 22. Specifically, the controller 2 and the compressor 3 are main components of the dehumidifier, the controller 2 includes an electric control box 21, an electric control box cover 22 is disposed on the electric control box 21 and used for preventing water or other impurities from affecting the electric control box 21, and an electric control board is disposed in the electric control box 21 and is a main heating component of the dehumidifier.

More specifically, one side of the electric control box 21 is tightly attached to the vertical plate 11, the electric control box cover 22 is buckled to the other side of the electric control box 21, and a gap for air flowing is formed between the electric control box cover 22 and the front panel.

In a specific embodiment: as shown in fig. 3, the first heat dissipation channel includes a first drainage hole 51 formed in the bottom of the housing 1, a wind direction hole 52 formed in the electrical control box cover 22, and a second drainage hole 53 formed in the electrical control box 21; the air enters the electric control box cover 22 after sequentially passing through the first drainage holes 51 and the wind direction holes 52, takes away the heat of the electric control box 21, and flows out through the second drainage holes 53.

Specifically, the first heat dissipation channel has a specific structure that: as shown in fig. 3, a first drainage hole 51 is formed in the chassis 12, the first drainage hole 51 is used for allowing air to enter the first heat dissipation channel, and in the operation process of the dehumidifier, the air pressure inside the casing is low, and the air pressure of the external air is high, so that the air can enter the first heat dissipation channel through the first drainage hole 51; the first drainage holes 51 are arranged in a plurality of rows and are distributed on the chassis 12, the first drainage holes 51 can be circular holes, square holes or rhombic holes, and the shape of the first drainage holes 51 can be various regular or irregular shapes as long as the air can flow in;

as shown in fig. 4, the electrical control box cover 22 is provided with a wind direction hole 52, and the wind direction hole 52 is obliquely arranged to facilitate air to enter the electrical control box cover 22, so as to cool the electrical control box 21 in the electrical control box cover 22;

as shown in fig. 2 and 3, the electrical control box 21 is provided with a second drainage hole 53, and the second drainage hole 53 is mainly used for discharging heat in the electrical control box cover 22 after the air takes away the heat; the second drainage holes 53 may be any shape such as circular holes, square holes, or diamond holes.

In a specific embodiment: as shown in fig. 2, the first heat dissipation channel further includes a wind guiding groove 54, the wind guiding groove 54 is formed on the vertical plate 11, and the position of the wind guiding groove 54 corresponds to the position of the second drainage hole 53.

In addition, as shown in fig. 4, the electrical control box cover 22 is further provided with a third drainage hole 56, and the third drainage hole 56 and the wind direction hole 52 work together to introduce air into the electrical control box cover 22.

Adopt the first heat dissipation channel that this embodiment provided to realize dispelling the heat to controller 2, specific heat dissipation process is:

as shown by the arrows in fig. 2, air enters the first heat dissipation chamber through the first drainage hole 51 formed in the chassis 12, and then enters a space formed by the electronic control box cover 22 and the electronic control box 21 through the wind direction hole 52 formed in the electronic control box cover 22, the space is provided with an electronic control board which generates more heat when the dehumidifier works, the air dissipates heat to the electronic control board in the basically closed space, and the air takes away the heat of the electronic control board and then is discharged to the space above the compressor 3 through the second drainage hole 53 and the wind guide groove 54 in sequence.

In a specific embodiment: the first heat dissipation channel further comprises a heat sink 55, the vertical plate 11 has a notch, the heat sink 55 is fixed in the notch, and the heat sink 55 is located in the second heat dissipation cavity and tightly attached to the controller 2.

Specifically, set up the breach on riser 11, the one end of radiator 55 is arranged in the second heat dissipation chamber, and the other end of radiator 55 hugs closely through this breach and controller 2, and the setting of breach makes radiator 55 can directly hug closely with one side of automatically controlled box 21, and automatically controlled board generally sets up on this side, so, radiator 55 can cool down automatically controlled board once more, and the reliability of automatically controlled board work has been guaranteed in the dual cooling of air and radiator.

In a specific embodiment: the second heat dissipation channel comprises a compressor heat dissipation channel and a radiator heat dissipation channel, and the compressor heat dissipation channel and the radiator heat dissipation channel are both positioned in the second heat dissipation cavity; the compressor heat dissipation path is used for dissipating heat from the compressor, and the radiator heat dissipation path is used for dissipating heat from the radiator 55

In a specific embodiment: as shown in fig. 4, the heat sink 55 includes a plurality of fins arranged in parallel, and a gap for air circulation is formed between adjacent fins. Air can circulate through the gap to dissipate heat from the heat sink 55.

In a specific embodiment: as shown in fig. 3, the bottom of the housing 1 has a first air inlet 61, and the first air inlet 61 is vertically disposed corresponding to the heat sink 55; the first air inlet hole 61 and the gap form a heat sink heat dissipation channel.

The first air inlet holes 61 are formed in the chassis 12, and a plurality of the first air inlet holes 61 are arranged on the chassis 12 in a row, and the first air inlet holes 61 can be circular holes, square holes or rhombic holes, and the shapes of the first air inlet holes 61 can be various regular or irregular shapes as long as the air inflow can be realized; and, the first air inlet hole 61 corresponds to the gap between the adjacent heat dissipation fins up and down, so that the air entering the second heat dissipation cavity through the first air inlet hole 61 can smoothly enter the gap to realize heat dissipation of the heat sink 55.

Thus, the air enters the second heat dissipation chamber through the first air inlet hole 61, and then enters the gaps between the adjacent heat dissipation fins, and takes away the heat generated by the heat dissipation fins and enters the space above the compressor 3.

In a specific embodiment: as shown in fig. 3, the bottom of the casing 1 further has a second air inlet hole 62, and the second air inlet hole 62 corresponds to a gap between the compressor 3 and the other side surface of the casing 1; the second inlet holes 62 and the gaps form compressor heat dissipation passages.

Specifically, the second air inlet hole 62 is opened on the chassis 12 and arranged around the compressor 3, so that after air enters the second heat dissipation cavity through the second air inlet hole 62, the heat generated by the compressor 3 can be taken away more around the compressor 3, and the influence on the performance of the compressor 3 due to poor heat dissipation effect is avoided.

In a specific embodiment: the air draft unit 4 comprises a driving motor, a fan blade 41 and an air duct 42, an output shaft of the driving motor is connected with the fan blade 41, the fan blade 41 is located at an outlet end of the air duct 42, and the air duct 42 is fixed on the vertical plate 11 and used for extracting hot air at outlets of the first heat dissipation channel and the second heat dissipation channel.

The driving motor works to drive the fan blades 41 to rotate, and then the air with heat in the upper space of the compressor 3 is discharged through the air duct 42. The air duct 42 is a foam air duct made of foam material, and is a light air duct.

The first heat dissipation channel and the second heat dissipation channel respectively bring heat generated by the controller 2 and the compressor 3 to the upper part of the compressor 3, negative pressure is generated by rotation of the fan blade 41, and air with heat is blown out of the outdoor unit along the negative pressure through the air duct 42, so that an efficient heat dissipation effect is achieved.

In a specific embodiment: the dehumidifier also comprises a heat exchanger 7, and the heat exchanger 7 is arranged in the shell 1 through a support plate 8; a water receiving tray 81 is arranged in the supporting plate 8, the water receiving tray 81 is positioned below the heat exchanger 7 and used for receiving condensed water generated by the heat exchanger 7, and the water receiving tray 81 is communicated with the outside through a drain pipe 82.

Specifically, the heat exchanger 7 is an important part of the dehumidifier for realizing the dehumidification function, condensate water is generated on the surface of the heat exchanger, and the performance of the part inside the casing 1 is affected after the condensate water drops into the casing 1.

In addition, in the specific embodiment, an exhaust fan can be directly added above the compressor 3 to extract heat in the inner cavity, air circulation can be increased, and the heat is dissipated out of the machine body through the air duct, so that the temperature of the controller is reduced, and a cooling effect is achieved.

The dehumidifier that this embodiment provided has this dehumidification function of dehumidifier in addition, still has good heat dissipation function, and the heat dissipation mainly embodies:

as shown by the arrows in fig. 6, the heat dissipation of the electrical control box cover 22 includes two parts: the first part is for dispelling the heat through the air, specifically is: air is discharged to the space above the compressor 3 through the first drainage hole 51, the wind direction hole 52, the second drainage hole 53 and the wind guide groove 54 in sequence, and heat dissipation of the electric control plate is realized in the process; the second part is to dissipate heat through the heat sink 55, specifically: the radiator 55 is tightly attached to the controller 2 to realize the heat dissipation of the electric control board;

as shown by the arrows in fig. 6, the heat dissipation of the compressor 3 includes two parts, the first part is used for dissipating heat from the heat sink 55, specifically: the air sequentially passes through the first air inlet holes 61 and the gaps between the adjacent radiating fins to take away heat generated by the radiating fins; the second part is for dispelling the heat to compressor 3, specifically is: the air passes through the second air inlet hole 62 and the gaps between the compressor 3 and the rear panel and between the compressor 3 and the vertical plate 11 in sequence to take away the heat around the compressor 3;

the two heat dissipation processes can bring heat to the space at the top of the compressor 3, and then the driving motor works to drive the fan blades 41 to rotate, so that the air with heat in the space above the compressor 3 is discharged through the air duct 42.

In summary, it is easily understood by those skilled in the art that the advantageous technical features described above can be freely combined and superimposed without conflict.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims (13)

1. The dehumidifier is characterized by comprising a shell, wherein a controller, a compressor and an air draft unit are arranged in the shell; the shell is internally provided with a first heat dissipation channel and a second heat dissipation channel, the controller is located on the first heat dissipation channel, the compressor is located on the second heat dissipation channel, and the air draft unit is arranged at the outlets of the first heat dissipation channel and the second heat dissipation channel.

2. The dehumidifier of claim 1, wherein a vertical plate is disposed at the bottom inside the casing, a first heat dissipation cavity is formed between the vertical plate and a panel of the casing, and the controller is fixed on a side wall of the vertical plate and located in the first heat dissipation cavity; a second heat dissipation cavity is formed between the vertical plate and the other panel of the shell, and the compressor is located in the second heat dissipation cavity.

3. The dehumidifier of claim 2, wherein the controller comprises an electrical control box and an electrical control box cover, and the electrical control box is sealed in the electrical control box cover.

4. The dehumidifier of claim 3, wherein the first heat dissipation channel comprises a first drainage hole formed at the bottom of the shell, a wind direction hole formed on the electric control box cover, and a second drainage hole formed on the electric control box; air enters the electric control box cover after passing through the first drainage holes and the wind direction holes in sequence, takes away heat of the electric control box, and flows out through the second drainage holes.

5. The dehumidifier of claim 4, wherein the first heat dissipation channel further comprises an air guide groove, the air guide groove is formed in the vertical plate, and the position of the air guide groove corresponds to the position of the second drainage hole.

6. The dehumidifier of claim 2, wherein the first heat dissipation channel further comprises a heat sink, the vertical plate has a notch, the heat sink is fixed in the notch, and the heat sink is located in the second heat dissipation cavity and tightly attached to the controller.

7. The dehumidifier of claim 6 wherein the second heat sink channel comprises a compressor heat sink channel and a heat sink channel, both of which are located in the second heat sink chamber.

8. The dehumidifier of claim 7 wherein said heat sink comprises a plurality of fins arranged in parallel, adjacent ones of said fins defining a gap therebetween for air circulation.

9. The dehumidifier of claim 8, wherein the bottom of the shell is provided with a first air inlet hole, and the first air inlet hole and the radiator are arranged in an up-down corresponding manner; the first air inlet hole and the gap form the heat dissipation channel of the heat radiator.

10. The dehumidifier of claim 8 or 9, wherein the bottom of the case further has a second air inlet hole corresponding to a gap between the compressor and another panel of the case; the second air inlet hole and the gap form the compressor heat dissipation channel.

11. The dehumidifier of any one of claims 2 and 6 to 9, wherein the air draft unit comprises a driving motor, a fan blade and an air duct, an output shaft of the driving motor is connected with the fan blade, the fan blade is positioned at an outlet end of the air duct, and the air duct is fixed on the vertical plate and used for extracting hot air at outlets of the first heat dissipation channel and the second heat dissipation channel.

12. The dehumidifier of any one of claims 1-2 and 6-9 further comprising a heat exchanger disposed within said housing by a support plate.

13. The dehumidifier of claim 12 wherein a water pan is disposed in the support plate and positioned below the heat exchanger for receiving the condensed water generated by the heat exchanger, and the water pan is communicated with the outside through a drain pipe.

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