Heat dissipation plate of electric control box, heat dissipation component, electric control box and air conditioner

Abstract

The present application discloses a heat sink, a heat sink assembly, an electric control box, and an air conditioner for an electric control box, and relates to the technical field of air conditioner manufacturing. It is used to solve the technical problem that condensation water is easily formed on the heat sink, which easily causes damage to the electrical components in the electric control box. The heat sink of the electric control box includes a heat sink body, on which at least two heat sink bosses are spaced apart, and an accommodation area is formed between at least two adjacent heat sink bosses, and a temperature and humidity sensor is arranged in the accommodation area. The heat sink assembly includes a heat exchanger and a heat sink, and the heat exchanger is located on the side of the heat sink away from the heat sink boss. The electric control box includes a mounting plate and a heat sink assembly, and the mounting plate and the heat sink of the heat sink assembly are stacked. The air conditioner includes a main unit and an electric control box, and the electric control box is mounted on the main unit. The heat sink, heat sink assembly, electric control box, and air conditioner of the electric control box disclosed in the present application are used for air conditioning devices.

Description

Technical Field

[0001] The present application relates to the technical field of air-conditioning manufacturing, and in particular to a heat dissipation plate of an electric control box, a heat dissipation assembly, an electric control box and an air conditioner. Background Art

[0002] Central air conditioners consist of one or more cooling and heating systems and multiple air conditioning systems. Unlike traditional refrigerant air conditioners, central air conditioners centrally process air to achieve comfortable air quality. The central air conditioner's outdoor unit is equipped with an electrical control box, which controls the air conditioner. Inside the box, a heat sink is installed to dissipate heat from the electrical components within the box. However, condensation easily forms on the heat sink in related art, potentially damaging the electrical components within the box. Summary of the Invention

[0003] The main purpose of this application is to provide a heat sink, heat sink assembly, electric control box and air conditioner for an electric control box, aiming to solve the technical problem that condensation water is easily formed on the heat sink, which easily causes damage to the electrical components in the electric control box.

[0004] To achieve the above-mentioned purpose, the heat dissipation plate of the electric control box provided in the present application includes a heat dissipation plate body, on which at least two heat dissipation bosses are spaced apart;

[0005] An accommodating area is formed between at least two adjacent heat dissipation bosses, and a temperature and humidity sensor is arranged in the accommodating area.

[0006] The beneficial effect of the present application is that the temperature and humidity of the area near the heat sink are detected by the temperature and humidity sensor on the heat sink body, so that the detected temperature data and humidity data can be used to adjust the heat exchange rate between the heat exchange element and the heat sink, and thereby indirectly adjust the temperature of the heat sink, reduce the temperature difference between the heat sink and the air in the electrical control box, so that the air in the electrical control box cannot meet the conditions for the formation of condensed water when it contacts the heat sink, thereby avoiding the formation of condensed water on the surface of the heat sink, and preventing damage to the electrical components in the electrical control box.

[0007] Based on the above technical solution, this application can also be improved as follows.

[0008] Furthermore, the heat dissipation boss has a drainage surface, and the drainage surface is configured to drain water flowing onto the drainage surface away from the heat dissipation boss.

[0009] The beneficial effect is that the drainage surface can discharge the condensed water formed on the drainage surface and the condensed water formed on the heat dissipation boss and flowing to the drainage surface out of the heat dissipation boss, thereby preventing the condensed water from contacting the electrical components.

[0010] Furthermore, in the accommodating area, the temperature and humidity sensor is arranged away from the drainage surfaces of two adjacent heat dissipation bosses.

[0011] The beneficial effect is that it can prevent the condensed water flowing out of the drainage surface from contacting the temperature and humidity sensor, thereby preventing the temperature and humidity sensor from being disturbed in detecting the temperature and humidity near the heat sink, making the detection results of the temperature and humidity sensor accurate.

[0012] Furthermore, in the accommodating area, the temperature and humidity sensor is arranged close to the drainage surface of any one of the two adjacent heat dissipation bosses.

[0013] The beneficial effect is that the condensed water flowing out of the drainage surface can come into contact with the temperature and humidity sensor in a short time, so that the temperature and humidity sensor can detect the formation of condensed water, and thus send out a warning message to inform the user that there is too much water in the electrical control box and the electrical components in the electrical control box are at risk of being damaged.

[0014] Furthermore, a drainage groove is formed in the accommodating area, the drainage surfaces of two adjacent heat dissipation bosses are connected to the first end of the drainage groove, and the second end of the drainage groove extends in a direction away from the drainage surface;

[0015] The drainage groove is configured to drain water on the drainage surface out of the heat dissipation boss.

[0016] The beneficial effect is that the condensed water on the drainage surface can flow into the drainage groove and be discharged from the heat dissipation boss along the drainage groove.

[0017] Furthermore, the accommodating area is provided with a stopper, and the drainage groove is formed between the stopper and the adjacent heat dissipation boss.

[0018] The beneficial effect is that the block can increase the contact area between the heat sink and the electrical components to be cooled in the electric control box, so as to improve the heat dissipation effect of the heat sink.

[0019] Furthermore, the temperature and humidity sensor is located in the drainage groove and is arranged close to the second end of the drainage groove.

[0020] Furthermore, at least one limiting boss is provided on the heat dissipation plate body, and the limiting boss and the heat dissipation boss are both located on the same plate surface of the heat dissipation plate body;

[0021] Furthermore, the limiting boss is located between the heat dissipation plate body and the heat dissipation boss.

[0022] The beneficial effect is that the limiting boss can pass through the mounting plate through the limiting opening of the mounting plate and extend from the surface of the mounting plate, so that the side of the heat dissipation boss facing away from the heat dissipation plate body contacts the bottom surface of the device to be cooled installed on the mounting plate, thereby making the device to be cooled and the heat dissipation boss directly contact and exchange heat, thereby improving the heat exchange efficiency between the heat dissipation plate and the device to be cooled, thereby improving the heat dissipation effect of the heat dissipation plate.

[0023] Furthermore, there are a plurality of limiting bosses, and the plurality of limiting bosses are arranged at intervals on the heat dissipation plate body.

[0024] The beneficial effect is that more heat dissipation bosses can be brought into contact with the bottom surface of the device to be dissipated mounted on the mounting plate, thereby improving the heat exchange efficiency between the heat dissipation plate and the device to be dissipated.

[0025] Furthermore, at least one of the plurality of limiting bosses is provided with at least two heat dissipation bosses; and on the same limiting boss, at least two heat dissipation bosses are spaced apart.

[0026] The accommodating area is formed between two adjacent heat dissipation bosses on the same limiting boss.

[0027] The beneficial effects are: the number of upper limit openings on the mounting plate can be reduced, the strength of the mounting plate can be improved, and the processing difficulty of the mounting plate can be reduced.

[0028] Furthermore, the detection end of the temperature and humidity sensor is not higher than the surface of the heat dissipation boss away from the heat dissipation plate body.

[0029] The beneficial effect is that the temperature and humidity sensor will not block the contact between the heat dissipation boss and the electrical components to be cooled, so that the heat dissipation boss can fully exchange heat with the electrical components to be cooled.

[0030] The present application also provides a heat dissipation assembly, comprising a heat exchanger and a heat dissipation plate of the electric control box described in any of the above technical solutions, wherein the heat exchanger is located on a side of the heat dissipation plate away from the heat dissipation boss.

[0031] Since the heat dissipation assembly of the present application includes the heat dissipation plate of the above-mentioned electric control box, the heat dissipation assembly of the present application also has the beneficial effects of the heat dissipation plate of the above-mentioned electric control box, which will not be repeated here.

[0032] Furthermore, the heat exchange element is attached to the surface of the heat dissipation plate of the electric control box away from the heat dissipation boss;

[0033] The projection of the heat exchange element on the heat dissipation plate of the electric control box at least partially overlaps with the temperature and humidity sensor of the heat dissipation plate of the electric control box.

[0034] The present application also provides an electric control box, comprising a mounting plate and a heat dissipation assembly as described in any of the above technical solutions, wherein the mounting plate and the heat dissipation plate of the heat dissipation assembly are stacked.

[0035] Since the electric control box of the present application includes the above-mentioned heat dissipation component, the beneficial effects of the above-mentioned heat dissipation component are also possessed by the electric control box of the present application, which will not be described in detail here.

[0036] Furthermore, the electric control box is a sealed electric control box.

[0037] The present application also provides an air conditioner, comprising a main unit and an electric control box as described in any of the above technical solutions, wherein the electric control box is mounted on the main unit.

[0038] Since the air conditioner of the present application includes the above-mentioned electric control box, the beneficial effects of the above-mentioned electric control box are also possessed by the air conditioner of the present application, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0040] Figure 1 A schematic structural diagram of a heat dissipation plate of an electric control box provided in an embodiment of the present application;

[0041] Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle;

[0042] Figure 3 Another structural schematic diagram of the heat dissipation plate of the electric control box provided in an embodiment of the present application;

[0043] Figure 4 for Figure 3 A magnified schematic diagram of point B in the middle;

[0044] Figure 5 A schematic diagram of another structure of the heat dissipation plate of the electric control box provided in an embodiment of the present application;

[0045] Figure 6 for Figure 5 The enlarged schematic diagram of point C in the middle;

[0046] Figure 7 A schematic diagram of the structure of the heat dissipation assembly provided in an embodiment of the present application;

[0047] Figure 8A schematic diagram of the structure of the electric control box provided in an embodiment of the present application;

[0048] Figure 9 An exploded schematic diagram of the electric control box provided in an embodiment of the present application;

[0049] Figure 10 A schematic diagram of the connection between the heat dissipation assembly and the mounting plate in the electric control box provided in an embodiment of the present application;

[0050] Figure 11 for Figure 10 Enlarged schematic diagram of point D in the middle.

[0051] Description of Figure Numbers:

[0052] Number name Label name 100 heat sink 110 Heat sink body 120 heat dissipation boss 120a Heat exchange contact surface 121 Drainage surface 130 drainage trough 140 stopper 150 Limiting boss 160 Temperature and humidity sensors 170 Accommodation area 200 Heat exchanger 300 Box 310 bottom box 320 Lid 400 Mounting plate 410 Limit port DETAILED DESCRIPTION

[0053] In the related art, a heat sink and a mounting plate are provided within an electrical control box. Electrical components are provided on one side of the mounting plate, and the heat sink is provided on the side of the mounting plate facing away from the electrical components. Heat generated by the electrical components during operation is first transferred to the mounting plate, and then from the mounting plate to the heat sink, thereby dissipating heat from the electrical components. However, the heat generated by the electrical components within the electrical control box during operation can increase the temperature of the air within the electrical control box. When the temperature of the air is higher than the temperature of the heat sink by a certain value and the air has a certain humidity, water molecules in the air will form condensed water upon contact with the heat sink. This condensed water can easily damage the electrical components within the electrical control box upon contact with the heat sink.

[0054] In light of this, the heat sink of the electrical control box in the embodiment of the present application is provided with heat dissipation bosses on the heat sink body, creating a storage area between the two heat dissipation bosses. A temperature and humidity sensor is also installed within the storage area. The temperature and humidity sensor detects the temperature and humidity of the area near the heat sink, thereby controlling the heat sink temperature to prevent the formation of condensation on the heat sink and protect the electrical components within the electrical control box from damage due to contact with condensation.

[0055] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0056] Example 1

[0057] Figure 1 A schematic structural diagram of a heat dissipation plate of an electric control box provided in an embodiment of the present application; Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle; Figure 3 This is another structural schematic diagram of the heat dissipation plate of the electric control box provided in an embodiment of the present application; Figure 4 for Figure 3 A magnified schematic diagram of point B in the middle; Figure 5 A schematic diagram of another structure of the heat dissipation plate of the electric control box provided in an embodiment of the present application; Figure 6 for Figure 5 Enlarged schematic diagram of point C in the middle.

[0058] See also Figures 1-6 As shown, the embodiment of the present application provides a heat sink 100 for an electric control box, comprising a heat sink body 110, on which at least two heat dissipation bosses 120 are spaced apart. The side of the heat sink body 110 facing away from the heat dissipation bosses 120 is used to communicate with a heat exchange element 200 (see FIG. 1 ) in the electric control box. Figure 7 Heat from the heat sink 100 is transferred to the heat exchange element 200 via contact heat exchange, thereby reducing the temperature of the heat sink 100. The heat dissipation boss 120 on the heat sink 100 is designed to contact the electrical components within the electrical control box, absorbing the heat generated by these components through contact heat exchange, thereby cooling the electrical components within the electrical control box.

[0059] A receiving area 170 is formed between two adjacent heat dissipation bosses 120 on the heat sink 100. A temperature and humidity sensor 160 is located within this area, capable of detecting the temperature and humidity of the area near the heat sink 100. By detecting these temperature and humidity conditions, it is determined whether the air inside the electrical control box has reached the conditions for condensation. Based on this, the heat exchange rate between the heat exchange element 200 and the heat sink 100 is adjusted, thereby adjusting the temperature of the heat sink 100 to minimize the difference between the temperature of the heat sink 100 and the temperature of the air inside the electrical control box, thereby preventing the formation of condensation from the air inside the electrical control box upon contact with the heat sink 100.

[0060] The heat sink 100 of the electrical control box provided in the embodiment of the present application detects the temperature and humidity of the area near the heat sink 100 through the temperature and humidity sensor 160 on the heat sink body 110, so that the detected temperature data and humidity data can be used to adjust the heat exchange rate between the heat exchange element 200 and the heat sink 100, and thereby indirectly adjust the temperature of the heat sink 100, reduce the temperature difference between the heat sink 100 and the air in the electrical control box, so that the air in the electrical control box cannot meet the conditions for the formation of condensation water when it contacts the heat sink 100, thereby avoiding the formation of condensation water on the surface of the heat sink 100 and preventing damage to the electrical components in the electrical control box.

[0061] In addition, the accommodation area 170 is specifically the space between the two heat dissipation bosses 120. Placing the temperature and humidity sensor 160 in the accommodation area 170 can save space on the heat dissipation plate 100. Furthermore, the accommodation area 170 also provides space for the connecting wires of the temperature and humidity sensor 160. The connecting wires of the temperature and humidity sensor 160 can be arranged in the accommodation area 170, thereby facilitating the routing of the temperature and humidity sensor 160.

[0062] Furthermore, to prevent the temperature and humidity sensor 160 from obstructing contact between the heat dissipation boss 120 and the electrical components to be dissipated within the electrical control box, the detection end of the temperature and humidity sensor 160 within the accommodation area 170 is no higher than the end surface of the heat dissipation boss 120 facing away from the heat sink body 110. This end surface serves as the heat exchange contact surface 120a where the heat dissipation boss 120 contacts the electrical components to be dissipated. In other words, the highest point of the detection end of the temperature and humidity sensor 160 within the accommodation area 170 does not protrude above the heat exchange contact surface 120a of the heat dissipation boss 120. Thus, the temperature and humidity sensor 160 does not obstruct contact between the heat dissipation boss 120 and the electrical components to be dissipated, thereby enabling the heat dissipation boss 120 to fully exchange heat with the electrical components to be dissipated, thereby reducing the temperature of the electrical components to be dissipated.

[0063] In addition, since the heat dissipation boss 120 and the electrical components to be dissipated in the electrical control box are not blocked by the temperature and humidity sensor 160, the connection between the heat dissipation plate 100 and the electrical components to be dissipated can be simplified, facilitating the assembly of the electrical control box.

[0064] See also Figure 1 and Figure 2 As shown, in order to further prevent condensed water from contacting the electrical components in the electrical control box and causing damage to the electrical components in the electrical control box, in the embodiment of the present application, the heat dissipation boss 120 has a drainage surface 121. The drainage surface 121 can drain the condensed water formed on the drainage surface 121 and the condensed water formed on the heat dissipation boss 120 and flowing onto the drainage surface 121 out of the heat dissipation boss 120, thereby preventing the condensed water from contacting the electrical components.

[0065] See also Figure 1 and Figure 2 As shown, the drainage surface 121 is located at the edge of the heat dissipation boss 120 and the side facing away from the heat dissipation plate body 100. The drainage surface 121 can be a slope or a curved surface, so that when the condensed water contacts the slope or the curved surface, it flows along the extension direction of the drainage surface 121 due to its own gravity, thereby discharging the condensed water from the heat dissipation boss 120.

[0066] The drainage surface 121 can surround the edge of the heat dissipation boss 120, or be located on one or more edges of the heat dissipation boss 120. The configuration can be based on the actual use scenario of the heat dissipation plate 100. Since the movement of condensed water is mainly driven by gravity, the drainage surface 121 is generally configured to face the direction of gravity to make it easier for the condensed water to flow toward the drainage surface 121.

[0067] Specifically, the guide surface 121 is an arc chamfer provided on the outer peripheral edge of the heat exchange contact surface 120a, and one guide surface is provided on each of the two opposite sides of the outer peripheral edge of the heat exchange contact surface 120a.

[0068] In the embodiment of the present application, the position of the temperature and humidity sensor 160 relative to the drainage surface 121 includes multiple settings.

[0069] See also Figure 3 and Figure 4 As shown, one method is to place the temperature and humidity sensor 160 away from the drainage surfaces 121 of the two adjacent heat dissipation bosses 120. The advantage of placing the temperature and humidity sensor 160 in this way is that it can prevent the condensed water flowing out of the drainage surface 121 from contacting the temperature and humidity sensor 160, thereby preventing the temperature and humidity sensor 160 from being disturbed in detecting the temperature and humidity near the heat dissipation plate 100, and ensuring that the detection results of the temperature and humidity sensor 160 are accurate.

[0070] See also Figure 1 and Figure 2 As shown, another method is to place the temperature and humidity sensor 160 close to the drainage surface 121 of any one of the two adjacent heat dissipation bosses 120. The advantage of placing the temperature and humidity sensor 160 in this way is that the condensed water flowing out of the drainage surface 121 can come into contact with the temperature and humidity sensor 160 in a short time, so that the temperature and humidity sensor 160 can detect the formation of condensed water and thus issue a warning message to inform the user that there is too much water in the electric control box and the electrical components in the electric control box are at risk of damage.

[0071] Also, see Figure 5 and Figure 6 As shown, the two aforementioned arrangements of the temperature and humidity sensors 160 can also be combined, that is, a temperature and humidity sensor 160 can be provided on both the drainage surface 121 away from the two adjacent heat dissipation bosses 120 and the drainage surface 121 close to any of the two adjacent heat dissipation bosses 120. The temperature and humidity sensor 160 on the drainage surface 121 away from the heat dissipation bosses 120 is used to detect the temperature and humidity near the heat dissipation plate 100, while the temperature and humidity sensor 160 on the drainage surface 121 close to the heat dissipation bosses 120 is used to warn of the formation of condensed water. Thus, the risk of damage to electrical components by condensed water formed on the heat dissipation plate 100 can be determined based on the signals from the temperature and humidity sensors 160 provided at the two locations.

[0072] For example, the temperature and humidity sensor 160 on the drainage surface 121 close to the heat dissipation boss 120 detects that condensation water has been formed, but the temperature and humidity sensor 160 on the drainage surface 121 away from the heat dissipation boss 120 detects that the temperature and humidity near the heat dissipation plate 100 are not enough to form condensation water that will harm the electrical components in the electrical control box. The condensation water that is formed can be quickly discharged, and there is no need to issue a warning message to the outside.

[0073] For example, the temperature and humidity sensor 160 on the drainage surface 121 close to the heat dissipation boss 120 detects that condensation water has not formed, but the temperature and humidity sensor 160 on the drainage surface 121 away from the heat dissipation boss 120 detects that the temperature and humidity near the heat dissipation plate 100 are sufficient to form an amount of condensation water that is harmful to the electrical components in the electrical control box. Condensation water is about to form quickly on the heat dissipation plate 100, and a warning message will be issued to inform the user that a large amount of condensation water is about to form in the electrical control box, and the electrical components in the electrical control box are at risk of being damaged.

[0074] See also Figure 1 and Figure 2 As shown, in the embodiment of the present application, in order to drain condensed water that flows onto the drainage surface 121 and condensed water that forms on the drainage surface 121 away from the heat dissipation boss 120, a drainage groove 130 is formed in the accommodating area 170. The drainage surfaces 121 of two adjacent heat dissipation bosses 120 are both connected to the drainage groove 130, and the drainage groove 130 extends away from the drainage surface 121. The humidity sensor is disposed at the bottom of the drainage groove 130. In this way, the condensed water on the drainage surface 121 can flow into the drainage groove 130 and drain out of the heat dissipation boss 120 along the drainage groove 130.

[0075] The bottom of the drainage groove 130 can be a flat surface, a concave wedge-shaped surface, or a concave curved surface. When the bottom of the drainage groove 130 is flat, the drainage groove 130 is easier to process. When the bottom of the drainage groove 130 is a concave wedge-shaped surface or a concave curved surface, the condensed water is more likely to flow along the sidewalls of the drainage groove 130 into the drainage groove 130, which can accelerate the collection of the condensed water, causing the condensed water to gather into water droplets or a stream and then be discharged from the drainage groove 130 at a faster speed.

[0076] In practical applications, after the heat sink 100 is assembled in the electrical control box, the drainage direction of the drainage groove 130 is aligned with the direction of gravity. This arrangement allows condensed water that enters the drainage groove 130 to flow along the drainage groove 130 under the action of gravity, accelerating the discharge of the condensed water from the drainage groove 130 out of the heat sink 100.

[0077] See also Figure 1 and Figure 2As shown, in the embodiment of the present application, the accommodating area 170 is provided with a stopper 140 , and a drainage groove 130 is formed between the stopper 140 and the adjacent heat dissipation boss 120 .

[0078] The direction in which the block 140 extends aligns with the direction in which the drainage groove 130 drains. The drainage groove 130 is formed between the sidewall of the block 140 and the sidewall of the adjacent heat dissipation boss 120. The side of the block 140 facing away from the heat dissipation plate body 110 is flush with the side of the heat dissipation boss 120 facing away from the heat dissipation plate body 110. This allows the block 140 to contact the electrical components to be cooled inside the electrical control box when the heat dissipation plate 100 is assembled inside the electrical control box. This increases the contact area between the heat dissipation plate 100 and the electrical components to be cooled, thereby enhancing the heat dissipation effect of the heat dissipation plate 100.

[0079] Example 2

[0080] Figure 7 For a schematic diagram of the heat dissipation assembly provided in this embodiment, see Figure 7 As shown, an embodiment of the present application provides a heat dissipation assembly, comprising a heat exchanger 200 and the heat sink 100 of the electrical control box in Example 1. The heat exchanger 200 is located on a side of the heat sink 100 away from the heat dissipation boss 120, and the temperature and humidity sensor 160 is located between the heat sink 100 and the heat exchanger 200. The heat exchanger 200 is used to exchange heat with the heat sink 100, so that the heat on the heat sink 100 is transferred to the outside of the electrical control box through the heat exchanger 200, thereby reducing the temperature of the heat sink 100 and the temperature inside the electrical control box.

[0081] The heat exchange element 200 can, to a certain extent, regulate the temperature of the heat sink 100, as the heat sink 100 itself is used to exchange heat with the electrical components to be cooled in the electrical control box, and transfer the heat absorbed by these electrical components to be cooled to the heat exchange element 200. The principle of heat exchange of the heat sink 100 is to utilize the temperature difference between the heat sink 100 itself and the electrical components to be cooled in the electrical control box to transfer the heat from these electrical components to be cooled to the heat sink 100. Therefore, the heat sink 100 itself does not have a temperature regulation function. The temperature of the heat sink 100 depends on the heat exchange efficiency of the heat exchange element 200 with the heat sink 100, as well as the temperature of the electrical components to be cooled. Therefore, the heat exchange rate of the heat exchange element 200 with the heat sink 100 can be changed by adjusting the power of the heat exchange element 200, thereby adjusting the cooling rate of the heat sink 100, thereby indirectly achieving the temperature regulation of the heat sink 100.

[0082] The heat exchange element 200 in the present application may be a microchannel heat exchange element 200. The microchannel heat exchange element 200 includes at least two groups of microchannels. The at least two groups of microchannels include a plurality of first microchannels for a first refrigerant flow and a plurality of second microchannels for a second refrigerant flow. The second refrigerant flow absorbs heat from the first refrigerant flow to supercool the first refrigerant flow, or the first refrigerant flow absorbs heat from the second refrigerant flow to supercool the second refrigerant flow.

[0083] The microchannel heat exchange element 200 of the present embodiment can also serve as an economizer for an air conditioner. This allows the microchannel heat exchange element 200 to cool the electronic components within the electrical control box while also serving as an economizer. This eliminates the need for an economizer outside the electrical control box, streamlines the air conditioner's structure, saves space, and reduces costs.

[0084] In specific applications, the temperature and humidity sensor 160 of the heat sink 100 detects the temperature and humidity of the area near the heat sink 100. When the temperature sensor detects that the temperature and humidity of the area near the heat sink 100 meet the conditions for condensation, the power of the heat exchange element 200 is reduced, thereby reducing the heat exchange rate between the heat exchange element 200 and the heat sink 100, thereby increasing the temperature of the heat sink 100 and reducing the difference between the temperature of the heat sink 100 and the temperature of the air inside the electrical control box. This prevents the air inside the electrical control box from meeting the conditions for condensation when it contacts the heat sink 100, thereby preventing condensation from forming on the surface of the heat sink 100 and preventing damage to the electrical components inside the electrical control box.

[0085] The heat exchange element 200 may be a heat exchange pipe located on a side of the heat dissipation plate 100 away from the heat dissipation boss 120. The heat dissipation plate 100 is in direct contact with the surface of the heat exchange pipe, and a circulating cooling medium is connected in the heat exchange pipe.

[0086] During use, the cooling medium circulating in the heat exchange tube continuously exchanges heat with the heat pipe, and the heat exchange tube contacts and exchanges heat with the heat sink 100, so that the heat on the heat sink 100 is transferred to the cooling medium in the heat exchange tube through the heat exchange tube, and the heat is taken away from the electronic control box through the circulation of the cooling medium.

[0087] The heat exchanger 200 can also be a plate heat exchanger, which is a plate body with a flat surface. The plate heat exchanger is provided with a heat dissipation channel for the flow of cooling medium inside. The heat exchanger 200 is attached to the surface of the plate heat exchanger away from the heat dissipation boss 120.

[0088] When in use, the heat dissipation channel is connected to the circulating cooling medium, and the cooling medium circulating in the heat dissipation channel continuously exchanges heat with the shell of the plate heat exchanger. The shell of the plate heat exchanger contacts and exchanges heat with the heat dissipation plate 100, so that the heat on the heat dissipation plate 100 is transferred to the cooling medium in the heat exchange tube through the shell of the plate heat exchanger, and the heat is taken away from the electrical control box through the circulation of the cooling medium.

[0089] Compared with the heat exchange tube, since the surface of the plate heat exchanger is flat, it can fit more closely with the surface of the heat sink 100, thereby increasing the contact area between the heat sink 100 and the plate heat exchanger and making the heat exchange in each area on the heat sink 100 more uniform, thereby achieving a better heat exchange effect with the heat sink 100.

[0090] In addition, since the surface of the plate heat exchanger can be more closely fitted with the surface of the heat sink 100 , compared with heat exchange tubes, the plate heat exchanger can make more effective use of the cooling medium and reduce the waste of the cooling medium.

[0091] Specifically, the cooling medium circulating in the heat exchange tubes and the heat dissipation channels of the plate heat exchanger can be a fluid medium such as pure water, butene, or ethylene glycol.

[0092] Since the heat dissipation component of the present application adopts all the technical solutions in Example 1, the heat dissipation component of the present application has at least all the beneficial effects brought about by the technical solutions in the above-mentioned Example 1. For details, please refer to the description of Example 1 and will not be repeated here.

[0093] Example 3

[0094] Figure 8 A schematic diagram of the structure of the electric control box provided in an embodiment of the present application; Figure 9 An exploded schematic diagram of the electric control box provided in an embodiment of the present application; Figure 10 A schematic diagram of the connection between the heat dissipation assembly and the mounting plate in the electric control box provided in an embodiment of the present application; Figure 11 for Figure 10 Enlarged schematic diagram of point D in the middle.

[0095] See also Figures 8-11 As shown, an embodiment of the present application provides an electric control box, comprising a box body 300, a mounting plate 400, and the heat dissipation assembly of the second embodiment. The box body 300 comprises a bottom box 310 and a box cover 320. The box cover 320 is coupled to the bottom box 310 to form a receiving cavity within the box body 300. The mounting plate 400, the heat dissipation assembly, and other electrical components are installed in the receiving cavity.

[0096] The electric control box of the embodiment of the present application can be, for example, a sealed electric control box, which can prevent water droplets, dust and other foreign matter from entering the electric control box and damaging the electronic components inside the electric control box, thereby achieving waterproof, dustproof and corrosion-resistant effects.

[0097] Among them, the mounting plate 400 and the heat sink 100 of the heat sink assembly are stacked in the box body 300. The heat exchange component 200 of the heat sink assembly is located on the side of the heat sink 100 away from the mounting plate 400. The side of the mounting plate 400 facing away from the heat sink 100 is used to install electrical components to be dissipated. The electrical components to be dissipated may include electrical components that generate heat during operation, such as reactors and filter plates installed in the electrical control box. In this way, the heat generated by the electrical components to be dissipated will first be transferred to the mounting plate 400, and then heat will be exchanged with the heat sink 100 through the mounting plate 400, so that the heat is transferred to the heat sink 100. The heat on the heat sink 100 will be in contact with the heat exchange component 200 for heat exchange, and finally the heat will be discharged from the accommodating cavity through the cooling medium in the heat exchange component 200.

[0098] It is understood that other components supporting the electronic control box in implementing its electronic control functions, such as circuit boards and connecting cables, may also be disposed within the housing cavity of the box body 300. Through holes (not shown) may be provided on the sidewalls of the box body 300, through which the connecting cables within the housing cavity of the box body 300 may be led out of the box body 300. The inlet and outlet pipes of the heat pipes within the housing cavity of the box body 300 may also be led out of the box body 300 through the through holes.

[0099] It should be noted that in order to ensure the sealing of the box body 300, the connection cables, the inlet pipes and outlet pipes of the heat dissipation pipes and the through holes are sealed. For example, sealant can be provided between the connection cables, the inlet pipes and outlet pipes of the heat dissipation pipes and the through holes, thereby ensuring that the box body 300 is a sealed box body, thereby ensuring the sealing of the electrical control box.

[0100] In specific applications, the installation order of the heat exchange component 200, the heat sink 100 and the mounting plate 400 in the accommodating cavity of the box body 300 can also be adjusted according to actual needs. For example, the heat exchange tube, the heat sink 100 and the mounting plate 400 can be stacked in sequence in the direction from the box cover 320 to the bottom wall of the bottom box 310.

[0101] In order to enable the heat dissipation plate 100 to directly dissipate heat for the electrical components to be dissipated in the electric control box.

[0102] See also Figure 10 and Figure 11As shown, in the embodiment of the present application, a limiting boss 150 is provided on the heat sink body 110. The limiting boss 150 and the heat dissipation boss 120 are both located on the same plate surface of the heat sink body 110, and the limiting boss 150 is located between the heat sink body 110 and the heat dissipation boss 120. A limiting opening 410 is provided on the mounting plate 400. The limiting opening 410 is arranged opposite to the limiting boss 150 of the heat sink 100. The limiting boss 150 is inserted into the limiting opening 410, and the temperature and humidity sensor 160 on the heat sink 100 is located in the limiting opening 410. The limiting boss 150 can pass through the mounting plate 400 through the limiting opening 410 and extend from the surface of the mounting plate 400, so that the side of the heat dissipation boss 120 facing away from the heat dissipation plate body 110 contacts the bottom surface of the device to be cooled installed on the mounting plate 400, thereby allowing the device to be cooled and the heat dissipation boss 120 to directly contact and exchange heat, thereby improving the heat exchange efficiency between the heat dissipation plate 100 and the device to be cooled, thereby improving the heat dissipation effect of the heat dissipation plate 100.

[0103] In specific applications, the side of the heat dissipation boss 120 facing away from the heat dissipation plate body 110 can be flat, and the bottom surface of the device to be dissipated is also flat. In this way, the side of the heat dissipation boss 120 facing away from the heat dissipation plate body 110 can be fitted with the bottom surface of the device to be dissipated, so as to increase the contact area between the heat dissipation plate 100 and the device to be dissipated, and further improve the heat dissipation effect of the heat dissipation plate 100.

[0104] In addition, there can be multiple limiting bosses 150, which are spaced apart on the heat sink body 110. This allows more heat dissipation bosses 120 to contact the bottom surface of the heat dissipation device mounted on the mounting plate 400, thereby improving the heat exchange efficiency between the heat sink 100 and the heat dissipation device.

[0105] Each of the plurality of limiting bosses 150 is provided with two heat dissipation bosses 120. On the same limiting boss 150, the two heat dissipation bosses 120 are spaced apart on the heat sink body 110. An accommodation area 170 is formed between two adjacent heat dissipation bosses 120 on the same limiting boss 150. Each of the two adjacent heat dissipation bosses 120 is provided within the accommodation area 170 formed between the two adjacent heat dissipation bosses 120. Thus, the provision of two heat dissipation bosses 120 on each limiting boss 150 reduces the number of upper limit openings 410 on the mounting plate 400, improves the strength of the mounting plate 400, and reduces the difficulty of manufacturing the mounting plate 400. In addition, a temperature and humidity sensor 160 is provided in the accommodating area 170 formed between two adjacent heat dissipation bosses 120, which is equivalent to providing a temperature and humidity sensor 160 in each limit opening 410, so that the temperature and humidity sensors 160 in each limit opening 410 can respectively detect the temperature and humidity near the contact area between the heat dissipation plate 100 and each electrical component to be dissipated, thereby more accurately detecting whether there is a risk of condensation water formation in each area of ​​the heat dissipation plate 100.

[0106] Since the electric control box of the present application adopts all the technical solutions in Example 1 and Example 2, the electric control box of the present application has at least all the beneficial effects brought about by the technical solutions in the above-mentioned Example 1 and Example 2. For details, please refer to the description of Example 1 and Example 2, and no further details will be given here.

[0107] Example 4

[0108] The present invention provides an air conditioner, comprising a main unit and an electric control box according to the above three embodiments, the electric control box being mounted on the main unit. For example, the air conditioner may be a central air conditioner, and the electric control box may be used to control the operation of the air conditioner.

[0109] Since the air conditioner of the present application adopts all the technical solutions in Examples 1 to 3, the air conditioner of the present application has at least all the beneficial effects brought about by the technical solutions in Examples 1 to 3. For details, please refer to the descriptions in Examples 1 to 3, which will not be repeated here.

[0110] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0111] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0112] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0113] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0114] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0115] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A heat dissipation plate of an electric control box, characterized in that: It includes a heat dissipation plate body, on which at least two heat dissipation bosses are spaced apart; An accommodating area is formed between at least two adjacent heat dissipation bosses, and a temperature and humidity sensor is arranged in the accommodating area; The heat dissipation boss has a drainage surface, and the drainage surface is configured to discharge water flowing onto the drainage surface out of the heat dissipation boss; In the accommodating area, the temperature and humidity sensors are both provided on the drainage surface away from the two adjacent heat dissipation bosses and the drainage surface close to any one of the two adjacent heat dissipation bosses.

2. The heat dissipation plate of the electric control box according to claim 1, characterized in that: A drainage groove is formed in the accommodating area, the drainage surfaces of two adjacent heat dissipation bosses are connected to the first end of the drainage groove, and the second end of the drainage groove extends in a direction away from the drainage surface; The drainage groove is configured to drain water on the drainage surface out of the heat dissipation boss.

3. The heat dissipation plate of the electric control box according to claim 2, characterized in that: The accommodating area is provided with a stopper, and the drainage groove is formed between the stopper and the adjacent heat dissipation boss.

4. The heat dissipation plate of the electric control box according to claim 3, characterized in that: The temperature and humidity sensor is located in the drainage groove and is arranged close to the second end of the drainage groove.

5. The heat dissipation plate of the electric control box according to any one of claims 1 to 4, characterized in that: The drainage surface is located at the edge of the side of the heat dissipation boss facing away from the heat dissipation plate body.

6. The heat dissipation plate of the electric control box according to any one of claims 1 to 4, characterized in that: At least one limiting boss is provided on the heat dissipation plate body, and the limiting boss and the heat dissipation boss are both located on the same plate surface of the heat dissipation plate body; Furthermore, the limiting boss is located between the heat dissipation plate body and the heat dissipation boss.

7. The heat dissipation plate of the electric control box according to claim 6, characterized in that: There are a plurality of limiting bosses, and the plurality of limiting bosses are arranged at intervals on the heat dissipation plate body.

8. The heat dissipation plate of the electric control box according to claim 7, characterized in that: At least one of the plurality of limiting bosses is provided with at least two heat dissipation bosses; and on the same limiting boss, at least two heat dissipation bosses are spaced apart. The accommodating area is formed between two adjacent heat dissipation bosses on the same limiting boss.

9. The heat dissipation plate of the electric control box according to any one of claims 1 to 4, characterized in that: The detection end of the temperature and humidity sensor is not higher than the surface of the heat dissipation boss away from the heat dissipation plate body.

10. A heat dissipation component, characterized in that: A heat dissipation plate comprising a heat exchange element and the electric control box according to any one of claims 1 to 9, wherein the heat exchange element is located on a side of the heat dissipation plate away from the heat dissipation boss.

11. The heat dissipation assembly according to claim 10, wherein: The heat exchange element is attached to the surface of the heat dissipation plate away from the heat dissipation boss; The projection of the heat exchange element on the heat sink at least partially overlaps with the temperature and humidity sensor of the heat sink.

12. An electric control box, characterized in that: The heat dissipation assembly comprises a mounting plate for mounting electronic components and the heat dissipation assembly according to claim 10 or 11, wherein the mounting plate and the heat dissipation plate of the heat dissipation assembly are stacked; The heat exchange element of the heat dissipation assembly is located on a side of the heat dissipation plate away from the mounting plate.

13. The electric control box according to claim 12, characterized in that: The mounting plate is provided with a limiting opening, the limiting opening is arranged opposite to the limiting boss of the heat dissipation plate, and the limiting boss is passed through the limiting opening; Furthermore, the temperature and humidity sensor on the heat dissipation plate is located in the limiting opening.

14. The electric control box according to claim 12 or 13, characterized in that: The electric control box is a sealed electric control box.

15. An air conditioner, characterized in that: It comprises a main body device and an electric control box as described in any one of claims 12 to 14, wherein the electric control box is installed on the main body device.

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