Heat dissipation device and heat pump unit

Abstract

The invention relates to a heat dissipation device and a heat pump unit. The heat dissipation device comprises an electric appliance box; the flow guide cover comprises a first air inlet and a first air outlet, and the first air inlet is connected with the air outlet of the fan; the drainage assembly is used for being connected with the first air outlet and the electric appliance box so that cold air obtained after heat exchange between the evaporator and air can be led into the inner space of the electric appliance box, and heat exchange is conducted between the cold air and the electric appliance box. The heat dissipation device can secondarily utilize cold air exhausted by the unit, the cold air dissipates heat of the electric appliance box, energy conservation and environmental protection are achieved, meanwhile, stable operation of components in the electric appliance box is guaranteed, and the long-term operation reliability and stability of the unit are improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat pump equipment, and in particular to a heat dissipation device and a heat pump unit. Background Art

[0002] As the requirements for energy conservation and emission reduction continue to increase, the energy-saving technical requirements faced by heat pump units are becoming more and more stringent, and the energy-saving design of heat pump units is constantly updated and developed amid various difficulties and challenges. Heat pump units include air source heat pumps and air-cooled heat pumps. Among them, air source heat pump water heaters have a higher energy efficiency ratio than traditional electric water heaters and gas water heaters because they can absorb heat from the air to heat water, thereby greatly reducing energy consumption.

[0003] In the related technology, when the air-source heat pump water heater is operating in the hot water production mode, the refrigerant flows through the evaporator, and the air flows from one side of the evaporator to the other side. The refrigerant in the evaporator exchanges heat with the air in the environment, and the fan exhausts cold air that is lower than the environment. However, the cold air exhausted by the fan is all discharged into the external environment and cannot be reused, thus wasting cold air resources. Summary of the invention

[0004] The present application provides a heat dissipation device and a heat pump unit to solve the technical problem that when the existing heat pump unit is operating in a hot water production condition, the cold air discharged after the evaporator and the air heat exchange is all discharged into the external environment and cannot be reused, thus wasting the cold air resources.

[0005] In a first aspect, the present application provides a heat dissipation device, which is arranged on a heat pump unit, wherein the heat pump unit includes an evaporator and a fan, and the heat dissipation device includes:

[0006] Electrical box;

[0007] A deflector, the deflector comprising a first air inlet and a first air outlet, the first air inlet being connected to the air outlet of the fan;

[0008] A drainage component is used to connect the first air outlet and the electrical box to introduce the cold air after the evaporator exchanges heat with the air into the internal space of the electrical box, so that the cold air exchanges heat with the electrical box.

[0009] In a possible implementation, the air guide cover includes a connected connecting plate and a cover body, the connecting plate is provided with the first air inlet, a first side of the cover body is connected to the connecting plate, and a second side of the cover body is extended in a direction away from the fan;

[0010] The cover body includes a guide cavity, the first air outlet is arranged on the side wall of the cover body, and the first air inlet and the first air outlet are connected to the guide cavity.

[0011] In a possible implementation, it includes a box body and a partition, the partition divides the internal space of the box body into a first accommodating chamber and a second accommodating chamber, the evaporator and the fan are arranged in the first accommodating chamber, the electrical box is arranged in the second accommodating chamber, and the first air inlet is connected to the first accommodating chamber.

[0012] In a possible implementation, the air guide cover includes an air duct, a first end of the air duct is connected to the first air outlet, and a second end of the air duct is extended toward the electrical box.

[0013] In a possible implementation, the air deflector includes a cover plate, which covers a side of the cover body facing away from the connecting plate, and the cover plate is detachably connected to the cover body.

[0014] In a possible implementation, the electrical box includes an inner box body, an outer box body and a mounting plate, the outer box body is sleeved on the inner box body, and a heat exchange cavity is formed between the outer box body and the inner box body;

[0015] The outer box body is provided with a second air inlet and a second air outlet, the second air inlet and the second air outlet are both connected to the heat exchange cavity, and the second air inlet is connected to the first air outlet of the air guide cover;

[0016] The mounting plate is arranged on the inner side wall of the inner box body, and on the outer side wall of the inner box body, the air inlet of the vortex channel is arranged close to the second air inlet.

[0017] In a possible implementation, a driving plate is disposed on the mounting plate, and an orthographic projection of the vortex channel on the mounting plate at least partially overlaps with an orthographic projection of the driving plate on the mounting plate.

[0018] In a possible implementation, the air guide cover is provided with a first filter at the first air outlet;

[0019] and / or;

[0020] The electrical box is provided with a second filter at the second air outlet.

[0021] In one possible implementation, the drainage assembly includes a water filter tank and a first air duct, the first end of the first air duct is connected to the air duct, the second end of the first air duct is connected to the water filter tank, the first end of the first air duct is higher than the second end of the first air duct, the water filter tank is connected to the electrical box, and the water filter tank is used to collect and discharge condensed water caused by the evaporator.

[0022] In a possible implementation, the drainage assembly includes a second air duct, a first end of the second air duct is connected to the water filter tank, and a second end of the second air duct is connected to the electrical box.

[0023] In a possible implementation, the water filter tank includes a first tank body, a second tank body and a drain pipe, the first tank body is covered on the second tank body, and a water collecting chamber is formed between the first tank body and the second tank body;

[0024] The drain pipe is arranged on the second tank body, the first end of the drain pipe is extended into the water collecting chamber, and the second end of the drain pipe is extended to the external space of the water collecting chamber.

[0025] In one possible implementation, the water filter tank includes an automatic drainage component, a cover is provided at the second end of the drain pipe, and a power output end of the automatic drainage component is connected to the cover to drive the cover to move relative to the drain pipe to have an open state and a closed state.

[0026] In a possible implementation, the automatic drainage assembly includes a fixed bracket, a first lever and a second lever hingedly arranged on the fixed bracket, and a slider slidably arranged on the fixed bracket, and the fixed bracket is arranged on the second tank body;

[0027] A float is disposed at the first end of the first lever, and the second end of the first lever is connected to the first end of the second lever;

[0028] The second end of the second lever is connected to the first side of the slider, and the second side of the slider is connected to the cover.

[0029] In a possible implementation, the sliding block is provided with a sliding groove, and the fixed bracket is provided with a guide column slidably connected to the sliding groove;

[0030] The fixing bracket is provided with a first limit block, the first limit block abuts against the second end of the first lever, and when the water level of the water collecting chamber is lower than the water level threshold, the first limit block is used to limit the first lever from rotating relative to the fixing bracket;

[0031] and / or,

[0032] The fixed bracket is provided with a second limit block, which abuts against the second end of the second lever. When the water level of the water collecting chamber is lower than the water level threshold, the second limit block is used to limit the rotation of the second lever relative to the fixed bracket.

[0033] In a second aspect, the present application provides a heat pump unit, comprising an evaporator, a fan and the heat dissipation device as described above.

[0034] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0035] The heat dissipation device and heat pump unit provided by the embodiment of the present application, in the heat dissipation device, when the heat pump unit is operating in the hot water making condition, the refrigerant flows through the evaporator, the fan accelerates the air flow, drives the accelerated air to flow from one side of the evaporator to the other side, speeds up the heat exchange efficiency between the refrigerant of the evaporator and the air in the environment, the refrigerant absorbs the heat in the air, and the fan outlet discharges cold air with a lower temperature than the ambient temperature. This part of the cold air flows into the interior of the electrical box through the guide cover and the drainage component, and the cold air exchanges heat with the wall of the electrical box, taking away the heat inside the electrical box, thereby achieving the purpose of heat dissipation of the electrical box, and avoiding the failure of the components in the electrical box working at high temperature. The present application can reuse the cold air discharged by the unit, so that the cold air dissipates the heat of the electrical box, effectively utilizes the cold air resources, saves energy and protects the environment, ensures the stable operation of the components inside the electrical box, prolongs the service life of the components, and improves the long-term operation reliability and stability of the unit.

[0036] The heat pump unit provided in the embodiment of the present application includes the above heat dissipation device, which can introduce the cold air after the evaporator exchanges heat with the air into the internal space of the electrical box through the first air inlet, so that the cold air and the electrical box can exchange heat. Therefore, it naturally has the technical effect of the above heat dissipation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0040] Figure 1 A schematic diagram of the structure of a heat dissipation device provided in an embodiment of the present application;

[0041] Figure 2 for Figure 1 A three-dimensional view of a shroud of a heat dissipation device is shown;

[0042] Figure 3 for Figure 2 A cross-sectional view of the air deflector is shown;

[0043] Figure 4 for Figure 1 A schematic diagram of the internal structure of the electrical box of the heat dissipation device is shown;

[0044] Figure 5 for Figure 4 A front view of the electrical box is shown;

[0045] Figure 6 for Figure 4 A rear view of the electrical box is shown;

[0046] Figure 7 for Figure 1 The structural schematic diagram of the water filter tank of the heat dissipation device shown;

[0047] Figure 8 for Figure 2 A cross-sectional view of the water filter tank is shown;

[0048] Fig. 9 for Figure 8 A schematic diagram showing the working principle of the automatic drainage assembly of the water filter tank.

[0049] Description of reference numerals:

[0050] 100. Heat dissipation device;

[0051] 1. Electrical box; 11. Inner box body; 111. Vortex channel; 12. Outer box body; 121. Second air inlet; 122. Second air outlet; 123. Second filter; 13. Mounting plate; 131. Driving plate;

[0052] 2. air guide cover; 21. connecting plate; 211. first air inlet; 22. cover body; 221. air guide cavity; 222. first air outlet; 223. first filter screen; 23. cover plate; 24. air duct;

[0053] 3. Drainage assembly; 31. Water filter tank; 311. First tank body; 312. Second tank body; 313. Drain pipe; 3131. Sealing cover; 314. Water collecting chamber; 315. Automatic drainage assembly; 3151. Fixed bracket; 3151a. Guide column; 3152. First lever; 3153. Second lever; 3154. Sliding block; 3154a. Sliding groove; 3155. Floating ball; 3156. First stop block; 3157. Second stop block; 32. First air duct; 33. Second air duct;

[0054] 4. Box body; 41. First accommodating chamber; 42. Second accommodating chamber;

[0055] 5. Partition;

[0056] 200. Evaporator. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0058] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0059] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0060] In the related technology, when the air-source heat pump water heater is operating in the hot water production mode, the refrigerant flows through the evaporator, and the air flows from one side of the evaporator to the other side. The refrigerant in the evaporator exchanges heat with the air in the environment, and the fan exhausts cold air that is lower than the environment. However, the cold air exhausted by the fan is all discharged into the external environment and cannot be reused, thus wasting cold air resources.

[0061] In order to solve the technical problem that when the existing heat pump unit is operating in hot water production mode, the cold air exhausted after the evaporator exchanges heat with the air is all discharged into the external environment and cannot be reused, thus wasting the cold air resources, the present application provides a heat dissipation device and a heat pump unit, which can reuse the cold air exhausted by the unit so that the cold air can dissipate the heat of the electrical box, thereby saving energy and being environmentally friendly, while ensuring the stable operation of the components inside the electrical box, and improving the long-term operation reliability and stability of the unit.

[0062] Figure 1 and Figure 2 A heat dissipation device 100 provided in the present application is arranged on a heat pump unit, the heat pump unit includes an evaporator 200 and a fan, and the heat dissipation device 100 includes an electrical box 1, a deflector 2 and a drainage component 3; the deflector 2 includes a first air inlet 211 and a first air outlet 222, and the first air inlet 211 is connected to the air outlet of the fan; the drainage component 3 is used to connect the first air outlet 222 and the electrical box 1, so as to introduce the cold air after the evaporator 200 exchanges heat with the air into the internal space of the electrical box 1 through the first air inlet 211, so that the cold air can exchange heat with the electrical box 1.

[0063] It is understandable that when the heat pump unit is operating in the hot water production condition, the refrigerant flows through the evaporator 200, and the fan accelerates the air flow, driving the accelerated air to flow from one side of the evaporator 200 to the other side, accelerating the heat exchange efficiency between the refrigerant of the evaporator 200 and the air in the environment, and the refrigerant absorbs the heat in the air, and the fan outlet discharges cold air with a lower temperature than the ambient temperature. This part of the cold air is introduced into the internal space of the electrical box 1 by the drainage component 3 from the first air inlet 211 of the air guide cover 2, and the cold air exchanges heat with the wall surface and components of the electrical box 1, taking away the heat inside the electrical box 1, thereby achieving the purpose of heat dissipation of the electrical box 1, and avoiding the failure of the components in the electrical box 1 to work at high temperatures. Compared with the prior art, the present application can reuse the cold air discharged by the unit, so that the cold air dissipates the heat of the electrical box 1, effectively utilizing the cold air resources, saving energy and protecting the environment, and at the same time ensuring the stable operation of the components inside the electrical box 1, extending the service life of the components, and improving the long-term operation reliability and stability of the unit.

[0064] In one embodiment, Figure 2As shown, the air deflector 2 includes a connected connecting plate 21 and a cover body 22, the connecting plate 21 is provided with a first air inlet 211, the first side of the cover body 22 is connected to the connecting plate 21, and the second side of the cover body 22 is extended in a direction away from the fan; the cover body 22 includes a guide cavity 221, and a first air outlet 222 is provided on the side wall of the cover body 22, and the first air inlet 211 and the first air outlet 222 are connected to the guide cavity 221. The cross-sectional shape of the cover body 22 can be set to a circular, square, elliptical, polygonal, etc., and this application does not make specific restrictions on this. It is understandable that the guide cavity 221 of the cover body 22 has a guiding effect on the cold air. After the cold air discharged by the fan enters the guide cavity 221 from the first air inlet 211 of the connecting plate 21, it is introduced into the first air outlet 222. Then this part of the cold air enters the internal space of the electrical box 1 through the guide assembly 3. The cold air exchanges heat with the wall surface and components of the electrical box 1, and takes away the heat inside the electrical box 1, thereby achieving the purpose of heat dissipation of the electrical box 1 and preventing the components in the electrical box 1 from working at high temperatures and failing. In this way, the stable operation of the components inside the electrical box 1 can be guaranteed, the service life of the components can be extended, and the long-term operation reliability and stability of the unit can be improved.

[0065] In a preferred embodiment, the cross section of the cover body 22 is set to be circular, and the circular cover body 22 surrounds the diversion cavity 221. The circular diversion cover 2 has the following advantages:

[0066] 1. Evenly distribute the fluid: The design of the circular air guide cover 2 helps the cold air flow to be more evenly distributed after entering the air guide cover 2, thereby reducing local impact and pressure loss and improving the air guide efficiency.

[0067] 2. Reduce resistance: The circular cross-section has smaller fluid resistance than other shapes (such as square or ellipse), which can reduce the energy loss of the cold air flow and make the cold air flow smoother.

[0068] 3. High structural strength: When subjected to external pressure, the circular fairing 2 structure can evenly distribute the pressure to the entire structure. Compared with other shapes, it has higher structural strength and stability and is suitable for applications in high-pressure environments.

[0069] 4. Easy to process and manufacture: The circular structure is relatively simple, easy to process and manufacture, with low cost, and easy to connect with other circular pipes or components, and easy to install and maintain.

[0070] 5. Reduce eddy current formation: In fluid dynamics, circular cross-section can effectively reduce the formation of eddy currents, reduce noise and vibration, and improve the stability and reliability of the system.

[0071] Therefore, after the cold air enters the guide cavity 221 of the guide cover 2 from the first air inlet 211 of the connecting plate 21, the fluid resistance and energy loss can be minimized to the greatest extent, and the noise and vibration can be reduced, so that the cold air flow can quickly pass through the guide assembly 3 and enter the internal space of the electrical box 1, taking away the heat inside the electrical box 1.

[0072] Optionally, a smooth transition is provided at the connection between the first side of the cover body 22 and the connecting plate 21 to avoid turbulence, thereby reducing the fluid resistance of the cold air flow passing through the air guide cover 2 .

[0073] Optionally, a plurality of reinforcing ribs are provided between the cover body 22 and the connecting plate 21 , and the plurality of reinforcing ribs are distributed in a ring shape with the axis of the air deflector 2 as the center. The provision of the reinforcing ribs can improve the overall structural strength of the air deflector 2 .

[0074] In one embodiment, Figure 1 As shown, the heat dissipation device 100 includes a box body 4 and a partition 5, the partition 5 divides the internal space of the box body 4 into a first accommodating chamber 41 and a second accommodating chamber 42, the evaporator 200 and the fan are arranged in the first accommodating chamber 41, the electrical box 1 is arranged in the second accommodating chamber 42, and the first air inlet 211 of the air guide cover 2 is connected to the first accommodating chamber 41. In this arrangement, under the action of the fan, the external air enters the first accommodating chamber 41 and exchanges heat with the evaporator 200. The partition 5 can separate the evaporator 200 from the electrical box 1. If there is no partition 5, the hot air discharged from the electrical box 1 will enter the first accommodating chamber 41, causing the heat exchange capacity of the evaporator 200 to be greatly weakened; at the same time, the partition 5 can also serve as a water receiving tray. When the evaporator 200 exchanges heat with the surrounding air, the ambient temperature is low, and the moisture in the air is easily condensed on the inner wall of the box body 4 and the side of the evaporator 200 to produce condensed water. The partition 5 can store and discharge this part of the condensed water to prevent the condensed water from entering the interior of the electrical box 1 under the action of its own gravity and affecting the normal operation of the electrical box 1.

[0075] Exemplarily, the first accommodating chamber 41 and the second accommodating chamber 42 can be arranged side by side in the vertical direction, that is, the first accommodating chamber 41 is arranged above the second accommodating chamber 42, so that the evaporator 200 and the electrical box 1 are respectively arranged at the upper and lower ends of the interior of the box 4. Of course, in some other embodiments, the first accommodating chamber 41 and the second accommodating chamber 42 can be arranged side by side in the horizontal direction, so that the evaporator 200 and the electrical box 1 are respectively arranged at the left and right ends of the interior of the box 4.

[0076] The connecting plate 21 is fixedly connected to the box body 4 so that the air deflector 2 is installed on the box body 4. The fixed connection method between the connecting plate 21 and the box body 4 may include welding connection, fastener connection, snap connection, etc., and the present application does not impose specific restrictions on this. In this embodiment, the connecting plate 21 and the box body 4 are fixedly connected by a first fastener, and a plurality of first through holes are arranged around the connecting plate 21, and a plurality of first connection holes are arranged on the box body 4. The plurality of first through holes correspond to the first connection holes one by one. The first fastener may be a screw, and one end of the first fastener passes through the first through hole and is threadedly connected to the first connection hole, thereby realizing the fixed installation of the air deflector 2 and the box body 4.

[0077] In one embodiment, Figure 3 As shown, the air guide cover 2 includes an air duct 24, the first end of the air duct 24 is connected to the first air outlet 222, and the second end of the air duct 24 is extended to the electrical box 1. The cross-sectional area of ​​the air duct 24 is smaller than the cross-sectional area of ​​the air guide cover 2, so as to accelerate and guide the cold air flow. It can be understood that the cold air discharged by the fan enters the guide cavity 221 of the air guide cover 2 from the first air inlet 211 of the connecting plate 21, and then enters the air duct 24 from the first air outlet 222. The cold air flow is accelerated through the drainage component 3 and then enters the internal space of the electrical box 1, so that the cold air can exchange heat with the wall surface and components of the electrical box 1 more quickly, and take away the heat inside the electrical box 1, thereby improving the heat exchange efficiency, achieving the purpose of heat dissipation of the electrical box 1, and avoiding the failure of the components in the electrical box 1 working at high temperatures. In this way, the stable operation of the components inside the electrical box 1 can be guaranteed, the service life of the components can be extended, and the long-term operation reliability and stability of the unit can be improved.

[0078] In some embodiments, the air duct 24 may be a variable cross-section duct or a constant cross-section duct. Figure 1 As shown, the cross-section of the air duct 24 can gradually decrease in the direction approaching the electrical box 1 to form a variable cross-section pipe, so as to further accelerate the cold air flow and improve the efficiency of heat exchange between the cold air and the electrical box 1; or, the cross-section of the air duct 24 can gradually increase in the direction approaching the electrical box 1 to form a variable cross-section pipe; or, the cross-section of the air duct 24 can remain unchanged in the direction approaching the electrical box 1 to form a uniform cross-section pipe for easy processing and installation.

[0079] Optionally, the air deflector 2 may be disposed on the top of the housing 4, or on the side of the housing 4. Preferably, the air deflector 2 is disposed on the side of the housing 4 away from the electrical box 1. For example, when the first accommodating chamber 41 and the second accommodating chamber 42 are arranged side by side in the vertical direction, the evaporator 200 and the electrical box 1 are respectively disposed at the upper and lower ends inside the housing 4, and the air deflector 2 is disposed on the top of the housing 4, thereby saving the horizontal arrangement space of the heat dissipation device 100. When the first accommodating chamber 41 and the second accommodating chamber 42 are arranged side by side in the horizontal direction, the evaporator 200 and the electrical box 1 are respectively disposed at the left and right lower ends inside the housing 4, and the air deflector 2 is disposed on the side of the housing 4, thereby saving the vertical arrangement space of the heat dissipation device 100.

[0080] In some embodiments, Figure 1 As shown, the air guide cover 2 includes a cover plate 23, which covers the side of the cover body 22 away from the connecting plate 21, and the cover plate 23 is detachably connected to the cover body 22. During the operation of the heat dissipation device 100, since the fan forms a negative pressure in the first accommodating chamber 41, foreign objects such as leaves, garbage, insects and ants outside the box body 4 are easily sucked into the air guide cover 2. By providing the cover plate 23, it is possible to prevent foreign objects from being sucked into the air guide chamber 221 of the air guide cover 2, thereby ensuring the working reliability of the heat dissipation device 100.

[0081] The detachable connection method between the cover body and the cover body 22 includes at least one of the following: a snap connection structure, a fastener connection. Specifically, the edge of the cover plate 23 is provided with a plurality of slots, and the edge of the cover body 22 is provided with a plurality of snaps, and the snaps correspond to the slots one by one and are connected by snapping, so as to achieve the fixed installation of the air deflector 2 and the box body 4; or, the edge of the cover plate 23 is provided with a plurality of second through holes, and the edge of the cover body 22 is provided with a plurality of second connection holes, and the plurality of second through holes correspond to the second connection holes one by one, and the second fastener can be a screw, and one end of the second fastener passes through the first through hole and is threadedly connected with the first connection hole, so as to achieve the fixed installation of the air deflector 2 and the box body 4. Of course, two connection structures can also be constructed to achieve a detachable connection between the cover plate 23 and the cover body 22. In this embodiment, the installation steps of the cover plate 23 and the cover body 22 are as follows: first, align the buckle of the cover body 22 with the slot of the cover plate 23, and snap the buckle into the slot to achieve the positioning of the cover body 22 and the cover plate 23. At this time, the second through hole of the cover plate 23 and the second connection hole of the cover body 22 have been one-to-one correspondence; then, the second fasteners are connected in sequence to complete the assembly of the cover body 22 and the box body 4. By setting the above-mentioned detachable structure, it is convenient for the staff to disassemble the cover plate 23 for maintenance and repair.

[0082] In some embodiments, Figure 4 and Figure 5As shown, the electrical box 1 includes an inner box body 11, an outer box body 12 and a mounting plate 13, the outer box body 12 is sleeved on the inner box body 11, the outer box body 12 and the inner box body 11 can be tightly welded together, and a heat exchange cavity is formed between the outer box body 12 and the inner box body 11; a second air inlet 121 and a second air outlet 122 are provided on the outer box body 12, the second air inlet 121 and the second air outlet 122 are both connected to the heat exchange cavity, and the second air inlet 121 of the outer box body 12 is connected to the first air outlet 222 of the air guide cover 2; the mounting plate 13 is arranged on the inner side wall of the inner box body 11, and the mounting plate 13 and the inner box body 11 can be fixed by welding; as shown Figure 6 As shown, a vortex channel 111 is arranged on the outer wall of the inner box body 11 , and an air inlet of the vortex channel 111 is arranged close to the second air inlet 121 . The mounting plate 13 is used to mount components and a drive board 131. Optionally, the inner box body 11 can be made of aluminum. The inner box body 11 made of aluminum has good thermal conductivity. The heat generated on the components and the drive board 131 is quickly transferred to the inner box body 11 via the mounting plate 13. The cold air generated by the heat exchange between the evaporator 200 and the surrounding air enters the heat exchange cavity via the second air inlet 121 of the outer box body 12, and then enters the vortex channel 111. Since the vortex channel 111 extends the moving path of the cold air flow, the cold air can fully exchange heat with the inner box body 11 and take away the heat of the heat exchange cavity, thereby improving the utilization rate of the cold air and saving energy. The heat is discharged via the second air outlet 122 of the outer box body 12, thereby achieving effective heat dissipation of the electrical box 1, ensuring the stable operation of the components inside the electrical box 1, and extending the service life of the components. Cold air continuously flows into the electrical box 1 from the air duct 24 , pushing the hot air that has exchanged heat to be discharged from the second air outlet 122 of the outer box body 12 .

[0083] Specifically, the vortex channel 111 can be formed by bending a plurality of sheet plates, and a channel for the cold air flow is defined between two adjacent sheet plates. Of course, the sheet plates can also be made of aluminum, so that the vortex channel 111 made of aluminum has good thermal conductivity.

[0084] It should be noted that the second air inlet 121 and the second air outlet 122 can be arranged on the same side of the outer box body 12, or on adjacent sides of the outer box body 12, or the second air inlet 121 and the second air outlet 122 can be arranged on two opposite sides of the outer box body 12.

[0085] In a preferred embodiment, Figure 5 As shown, the second air inlet 121 and the second air outlet 122 are arranged on both sides of the diagonal of the outer box body 12, and the diagonal line can be the O line shown in the figure. Such arrangement enables the cold air to fully exchange heat with the inner box body 11 in the heat exchange cavity, thereby taking away more heat.

[0086] In one embodiment, Figure 5 and Figure 6 As shown, a driving plate 131 is arranged on the mounting plate 13, and the orthographic projection of the vortex channel 111 on the mounting plate 13 at least partially overlaps with the orthographic projection of the driving plate 131 on the mounting plate 13. A heating element is arranged on the driving plate 131. When the heating is serious, the local temperature of the driving plate 131 will reach hundreds of degrees Celsius, which seriously affects the life of the heating element and the working reliability of the electrical box 1. Therefore, the orthographic projection of the vortex channel 111 on the mounting plate 13 at least partially overlaps with the orthographic projection of the driving plate 131 on the mounting plate 13, and the vortex channel 111 extends the moving path of the cold air flow, so that the cold air flow can exchange heat with the inner box body 11 as much as possible in the area with serious heating, and preferentially take away the heat in the area with serious heating, so as to ensure the stable operation of the components on the driving plate 131 and improve the long-term operation reliability and stability of the unit.

[0087] Since the fan forms a negative pressure in the first accommodation chamber 41, foreign objects such as leaves, garbage, insects and ants outside the box body 4 are easily sucked into the air guide cover 2, and these foreign objects will affect the normal operation of the electrical box 1 after entering the electrical box 1. Therefore, the present application is provided with a filter to prevent foreign objects from being sucked into the heat dissipation device 100, and the specific design is described as follows.

[0088] In one embodiment, Figure 2 As shown, the first air outlet 222 of the air deflector 2 is provided with a first filter 223. After the external air of the box 4 enters the air deflector 221 of the air deflector 2 from the first accommodating cavity 41, it passes through the first air outlet 222 of the air deflector 2. The first filter 223 can prevent external foreign matter from being sucked into the electrical box 1. In one embodiment, as Figure 4 As shown, the second air outlet 122 of the electrical box 1 is provided with a second filter 123, and the second filter 123 can prevent external foreign matter from entering the heat exchange space of the electrical box 1. Of course, the above two embodiments can be combined for application.

[0089] When the evaporator 200 exchanges heat with the surrounding air, the ambient temperature is low. Since the air duct 2 is arranged close to the evaporator 200, the moisture in the air is easily condensed on the air duct 2 and the drainage component 3 to produce condensed water. In order to prevent this part of the condensed water from entering the electrical box 1 through the air duct 2 and the drainage component 3 and affecting the normal operation of the electrical box 1, the present application provides a water filter tank 31, which is used to collect and discharge the condensed water caused by the evaporator 200. The specific design is described as follows.

[0090] In some embodiments, Figure 1As shown, the drainage assembly 3 includes a water filter tank 31 and a first air duct 32, the first end of the first air duct 32 is connected to the air duct 24, the second end of the first air duct 32 is connected to the water filter tank 31, the first end of the first air duct 32 is higher than the second end of the first air duct 32, the water filter tank 31 is connected to the electrical box 1, and the water filter tank 31 is used to collect and discharge condensed water caused by the evaporator 200. The cold air discharged by the fan enters the guide cavity 221 of the guide cover 2, and then the cold air flow is accelerated through the air duct 24, and then enters the water filter tank 31 through the first air duct 32. Since the air guide cover 2 and the air duct 24 are both close to the evaporator 200, cold air easily forms condensed water on the inner wall of the air guide cover 2 and the inner wall of the air duct 24. The first end of the first air duct 32 is higher than the second end of the first air duct 32. The condensed water flows into the water filter tank 31 along the first air duct 32 under its own gravity, and is collected and discharged by the water filter tank 31, thereby preventing this part of condensed water from entering the interior of the electrical box 1 through the air guide cover 2 and the drainage component 3 and affecting the normal operation of the electrical box 1. The dry cold air enters the heat exchange cavity of the electrical box 1, takes away the heat of the electrical box 1, and prevents the components in the electrical box 1 from working at high temperatures and failing. In this way, the stable operation of the components inside the electrical box 1 can be guaranteed, the service life of the components can be extended, and the long-term operation reliability and stability of the unit can be improved.

[0091] Optionally, the second end of the air duct 24 may pass through the connecting plate 21 and be connected to the first air duct 32 . The air duct 24 and the first air duct 32 may be connected by a clamping method or fixed by a clamp.

[0092] Exemplarily, a first connecting pipe is provided on the top of the water filter tank 31, and the second end of the first air duct 32 is sleeved with the first connecting pipe, and the two are fixed by a clamp.

[0093] In one embodiment, Figure 1 As shown, the drainage assembly 3 includes a second air duct 33, a first end of the second air duct 33 is connected to the water filter tank 31, and a second end of the second air duct 33 is connected to the second air inlet 121 of the electrical box 1. The cold air discharged by the fan enters the guide cavity 221 of the air guide cover 2, and then the cold air flow is accelerated through the air duct 24, enters the water filter tank 31 through the first air duct 32, and then enters the internal space of the electrical box 1 through the second air duct 33, and the cold air exchanges heat with the inner wall surface of the electrical box 1 to achieve a heat dissipation effect.

[0094] Preferably, the first end of the second air duct 33 is lower than the second end of the second air duct 33. Generally speaking, the driving plate 131 is arranged at an upper position of the inner box body 11. With such a configuration, cold air can preferentially pass through the heating area close to the driving plate 131 to take away the heat from the heating area, thereby ensuring the stable operation of the components on the driving plate 131 and improving the long-term operation reliability and stability of the unit.

[0095] Exemplarily, a second connecting pipe is provided on the top of the water filter tank 31, and the second end of the second air duct 33 is sleeved with the second connecting pipe, and the two are fixed by a clamp.

[0096] In one embodiment, Figure 7 and Figure 8 As shown, the water filter tank 31 includes a first tank body 311, a second tank body 312 and a drain pipe 313. The first tank body 311 covers the second tank body 312, and a water collecting chamber 314 is formed between the first tank body 311 and the second tank body 312. The drain pipe 313 is arranged on the second tank body 312, and the first end of the drain pipe 313 extends into the water collecting chamber 314, and the second end of the drain pipe 313 extends to the external space of the water collecting chamber 314. The cold air discharged from the unit enters the guide chamber 221 of the guide cover 2, and then the cold air flow is accelerated through the air duct 24, and then enters the water filter tank 31 through the first air duct 32. Since the air deflector 2 and the air duct 24 are both close to the evaporator 200, cold air easily forms condensed water on the inner wall of the air deflector 2 and the inner wall of the air duct 24. The first end of the first air duct 32 is higher than the second end of the first air duct 32. Under the action of its own gravity, the condensed water flows into the water filter tank 31 along the first air duct 32 and gathers at the bottom of the water collecting chamber 314. When the condensed water exceeds the water level threshold, it can be discharged from the drain pipe 313, thereby preventing this part of the condensed water from entering the interior of the electrical box 1 through the air deflector 2 and the drainage component 3 and affecting the normal operation of the electrical box 1.

[0097] In one embodiment, Figure 8 As shown, the water filter tank 31 includes an automatic drainage component 315, and a cover 3131 is provided at the second end of the drain pipe 313. The power output end of the automatic drainage component 315 is connected to the cover 3131 to drive the cover 3131 to move relative to the drain pipe 313 and have an open state and a closed state. When the cover 3131 is in the open state, the condensed water collected in the water collection chamber 314 can be automatically discharged from the drain pipe 313; when the cover 3131 is in the closed state, the cover 3131 can close the drain pipe 313, which can prevent a part of the cold air from being discharged from the drain pipe 313 and wasting cold energy, so that all the cold air is transported to the internal space of the electrical box 1, and the maximum utilization rate of cold energy resources is achieved.

[0098] In one embodiment, Figure 8 and Fig. 9As shown, the automatic drainage assembly 315 includes a fixed bracket 3151, a first lever 3152 and a second lever 3153 hingedly arranged on the fixed bracket 3151, and a slider 3154 slidably arranged on the fixed bracket 3151, the fixed bracket 3151 is arranged on the second tank body 312, the first end of the first lever 3152 is provided with a float 3155, the second end of the first lever 3152 is connected to the first end of the second lever 3153; the second end of the second lever 3153 is connected to the first side of the slider 3154, and the second side of the slider 3154 is connected to the cover 3131.

[0099] Exemplarily, the first lever 3152 is rotatably connected to the fixed bracket 3151 via a first rotating shaft, and the first rotating shaft is the fulcrum of the first lever 3152; the second lever 3153 is rotatably connected to the fixed bracket 3151 via a second rotating shaft, and the second rotating shaft is the fulcrum of the second lever 3153. The first lever 3152 has a first horizontal section, and one end of the first horizontal section away from the second lever 3153 is connected to the floating ball 3155, so that the floating ball 3155 can sensitively feedback the buoyancy provided by the condensed water.

[0100] It is understandable that when the water level of the condensed water in the water collecting chamber 314 exceeds the water level threshold, the condensed water provides an upward buoyancy F to the float 3155. 浮 , the float 3155 floats upward, driving the first lever 3152 to rotate clockwise around its fulcrum, that is, the first end of the first lever 3152 swings upward, and the second end of the first lever 3152 swings downward accordingly; at this time, the second end of the first lever 3152 provides a downward force F1 to the first end of the second lever 3153, driving the second lever 3153 to rotate counterclockwise around its fulcrum, and the second end of the second lever 3153 swings upward; at this time, the second end of the second lever 3153 provides an upward force F2 to the slider 3154, so that the slider 3154 slides upward under the action of F2, driving the cover 3131 to slide upward relative to the drain pipe 313, opening the drain pipe 313, and the condensed water can be discharged from the drain pipe 313. When the condensate level is lower than the water level threshold, the float 3155 returns to its initial position under the action of its own gravity, driving the first lever 3152 to rotate counterclockwise around its fulcrum, and under the action of the lever principle of the first lever 3152 and the second lever 3153, the slider 3154 is driven to slide downward and reset, and the cover 3131 moves downward and blocks the drain pipe 313, preventing part of the cold air from being discharged from the drain pipe 313 and wasting cold air.

[0101] Of course, in some other embodiments, the automatic drainage component 315 may use an existing solenoid valve, which is disposed at the second end of the drain pipe 313, and the drain pipe 313 can be drained or closed by controlling the opening and closing of the valve.

[0102] In one embodiment, Fig. 9 As shown, a slide groove 3154a is provided on the slider 3154, and a guide column 3151a slidably connected to the slide groove 3154a is provided on the fixed bracket 3151; the guide column 3151a can slide up and down along the slide groove 3154a, so that the cover 3131 can slide up and down relative to the fixed bracket 3151. When the guide column 3151a is located at the top of the slide groove 3154a, the cover 3131 is in a closed state, preventing part of the cold air from being discharged from the drain pipe 313 and wasting cold energy; when the guide column 3151a is located at the bottom of the slide groove 3154a, the cover 3131 is in an open state, and condensed water is discharged from the drain pipe 313.

[0103] In one embodiment, Fig. 9 As shown, a first limit block 3156 is provided on the fixed bracket 3151, and the first limit block 3156 abuts against the second end of the first lever 3152. When the water level of the water collecting chamber 314 is lower than the water level threshold, the first limit block 3156 is used to limit the rotation of the first lever 3152 relative to the fixed bracket 3151. When the water level of the water collecting chamber 314 is lower than the water level threshold, the floating ball 3155 tends to move downward under the action of its own gravity, and the second end of the first lever 3152 tends to move upward. In order to maintain the equilibrium state of the first lever 3152 and the second lever 3153, the first limit block 3156 abuts against the second end of the first lever 3152 and provides a downward reverse force; at the same time, since the second end of the first lever 3152 is connected to the first end of the second lever 3153, the second end of the second lever 3153 and the slider 3154 both have a downward movement trend, and since the guide column 3151a abuts against the top of the slide groove 3154a, the upward movement of the slider 3154 is limited. Therefore, the equilibrium state of the first lever 3152 and the second lever 3153 can be maintained, and the floating ball 3155 always remains in the initial position, that is, the first horizontal section of the first lever 3152 remains in a horizontal state.

[0104] In one embodiment, Fig. 9As shown, the fixed bracket 3151 is provided with a second limit block 3157, which abuts against the second end of the second lever 3153. When the water level of the water collecting chamber 314 is lower than the water level threshold, the second limit block 3157 is used to limit the second lever 3153 from rotating relative to the fixed bracket 3151. When the water level of the water collecting chamber 314 is lower than the water level threshold, the float 3155 tends to move downward under its own gravity, and the second end of the first lever 3152 tends to move upward. Since the second end of the first lever 3152 is connected to the first end of the second lever 3153, the second end of the second lever 3153 and the slider 3154 both tend to move downward. Since the second limit block 3157 abuts against the second end of the second lever 3153, it can provide an upward reaction force, so that the first lever 3152 and the second lever 3153 can be kept in a balanced state, and the float 3155 always remains in the initial position, that is, the first horizontal section of the first lever 3152 remains in a horizontal state.

[0105] The embodiment of the present application further provides a heat pump unit, including an evaporator 200, a fan and the heat dissipation device 100 as described above.

[0106] The heat pump unit includes the above-mentioned heat dissipation device 100. When the heat pump unit is in operation of hot water making, the refrigerant flows through the evaporator 200, and the fan accelerates the air flow, driving the accelerated air to flow from one side of the evaporator 200 to the other side, thereby accelerating the heat exchange efficiency between the refrigerant in the evaporator 200 and the air in the environment. The refrigerant absorbs the heat in the air, and the fan outlet discharges cold air with a lower temperature than the ambient temperature. This part of the cold air is introduced into the internal space of the electrical box 1 by the drainage component 3 from the first air inlet 211 of the air guide cover 2. The cold air exchanges heat with the wall surface and components of the electrical box 1, taking away the heat inside the electrical box 1, thereby achieving the purpose of heat dissipation of the electrical box 1 and preventing the components in the electrical box 1 from working at high temperatures and failing. The cold air discharged by the unit can be reused for a second time, so that the cold air dissipates heat for the electrical box 1, effectively utilizing the cold air resources, saving energy and protecting the environment, and also ensuring the stable operation of the components inside the electrical box 1, extending the service life of the components, and improving the long-term operation reliability and stability of the unit.

[0107] Exemplarily, the heat pump unit may be an air source heat pump unit, and the heat pump unit further includes a compressor, a condenser and a throttling device, and both the compressor and the condenser may be arranged in the second accommodating chamber 42. The throttling device may adopt an existing capillary tube, an electronic expansion valve, etc. The exhaust port of the compressor is connected to the refrigerant inlet of the condenser, the refrigerant outlet of the condenser is connected to the refrigerant inlet of the throttling device, the refrigerant outlet of the throttling device is connected to the refrigerant inlet of the evaporator 200, and the refrigerant outlet of the evaporator 200 is connected to the air inlet of the compressor.

[0108] The working principle of the heat pump unit is as follows: when the heat pump unit is operating in hot water production mode, the high-pressure liquid refrigerant evaporates into gaseous refrigerant in the evaporator 200 after passing through the expansion valve, and absorbs a large amount of heat energy from the air; the gaseous refrigerant is compressed by the compressor into a high-temperature, high-pressure liquid, and then enters the condenser to release heat and heat the water. This continuous cycle of heating can heat the water to 50℃~65℃.

[0109] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0110] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0111] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A heat dissipation device, arranged on a heat pump unit, the heat pump unit comprising an evaporator and a fan, characterized in that: The heat dissipation device comprises: Electrical box; A deflector, the deflector comprising a first air inlet and a first air outlet, the first air inlet being connected to the air outlet of the fan; A drainage component is used to connect the first air outlet and the electrical box to introduce the cold air after the evaporator exchanges heat with the air into the internal space of the electrical box, so that the cold air exchanges heat with the electrical box.

2. The heat dissipation device according to claim 1, characterized in that: The air guide cover comprises a connected connecting plate and a cover body, the connecting plate is provided with the first air inlet, a first side of the cover body is connected to the connecting plate, and a second side of the cover body is extended in a direction away from the fan; The cover body includes a guide cavity, the first air outlet is arranged on the side wall of the cover body, and the first air inlet and the first air outlet are connected to the guide cavity.

3. The heat dissipation device according to claim 2, characterized in that: It includes a box body and a partition, the partition divides the internal space of the box body into a first accommodating chamber and a second accommodating chamber, the evaporator and the fan are arranged in the first accommodating chamber, the electrical box is arranged in the second accommodating chamber, and the first air inlet is connected to the first accommodating chamber.

4. The heat dissipation device according to claim 3, characterized in that: The air guide cover includes an air duct, a first end of the air duct is connected to the first air outlet, and a second end of the air duct is extended toward the electrical box.

5. The heat dissipation device according to claim 2, characterized in that: The air deflector comprises a cover plate, which covers a side of the cover body away from the connecting plate, and the cover plate is detachably connected to the cover body.

6. The heat dissipation device according to claim 1, characterized in that: The electrical box comprises an inner box body, an outer box body and a mounting plate, wherein the outer box body is sleeved on the inner box body, and a heat exchange cavity is formed between the outer box body and the inner box body; The outer box body is provided with a second air inlet and a second air outlet, the second air inlet and the second air outlet are both connected to the heat exchange cavity, and the second air inlet is connected to the first air outlet of the air guide cover; The mounting plate is arranged on the inner side wall of the inner box body, and a vortex channel is arranged on the outer side wall of the inner box body, and the air inlet of the vortex channel is arranged close to the second air inlet.

7. The heat dissipation device according to claim 6, characterized in that: A driving plate is arranged on the mounting plate, and the orthographic projection of the vortex channel on the mounting plate at least partially overlaps with the orthographic projection of the driving plate on the mounting plate.

8. The heat dissipation device according to claim 6, characterized in that: The air guide cover is provided with a first filter at the first air outlet; and / or; The electrical box is provided with a second filter at the second air outlet.

9. The heat dissipation device according to claim 4, characterized in that: The drainage component includes a water filter tank and a first air duct, the first end of the first air duct is connected to the air duct, the second end of the first air duct is connected to the water filter tank, the first end of the first air duct is higher than the second end of the first air duct, the water filter tank is connected to the electrical box, and the water filter tank is used to collect and discharge condensed water caused by the evaporator.

10. The heat dissipation device according to claim 9, characterized in that: The drainage component includes a second air duct, a first end of the second air duct is connected to the water filter tank, and a second end of the second air duct is connected to the electrical box.

11. The heat dissipation device according to claim 9, characterized in that: The water filter tank comprises a first tank body, a second tank body and a drain pipe, the first tank body is covered on the second tank body, and a water collecting chamber is formed between the first tank body and the second tank body; The drain pipe is arranged on the second tank body, the first end of the drain pipe is extended into the water collecting chamber, and the second end of the drain pipe is extended to the external space of the water collecting chamber.

12. The heat dissipation device according to claim 11, characterized in that: The water filter tank includes an automatic drainage component, a cover is provided at the second end of the drainage pipe, and a power output end of the automatic drainage component is connected to the cover to drive the cover to move relative to the drainage pipe to have an open state and a closed state.

13. The heat dissipation device according to claim 12, characterized in that: The automatic drainage assembly includes a fixed bracket, a first lever and a second lever hingedly arranged on the fixed bracket, and a slider slidably arranged on the fixed bracket, and the fixed bracket is arranged on the second tank body; A float is disposed at the first end of the first lever, and the second end of the first lever is connected to the first end of the second lever; The second end of the second lever is connected to the first side of the slider, and the second side of the slider is connected to the cover.

14. The heat dissipation device according to claim 13, characterized in that: The sliding block is provided with a sliding groove, and the fixed bracket is provided with a guide column slidably connected with the sliding groove; The fixing bracket is provided with a first limit block, the first limit block abuts against the second end of the first lever, and when the water level of the water collecting chamber is lower than the water level threshold, the first limit block is used to limit the first lever from rotating relative to the fixing bracket; and / or, The fixed bracket is provided with a second limit block, which abuts against the second end of the second lever. When the water level of the water collecting chamber is lower than the water level threshold, the second limit block is used to limit the rotation of the second lever relative to the fixed bracket.

15. A heat pump unit, characterized in that: The heat dissipation device comprises an evaporator, a fan and the heat dissipation device according to any one of claims 1 to 14.

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