Electric control heat dissipation structure and air conditioner

Abstract

The utility model discloses an electric control heat dissipation structure and an air conditioner. The electric control heat dissipation structure comprises an electric control board which comprises a board body and an electric control element arranged on the first side of the board body; the heat conducting plate is located on the first side of the electric control element and abuts against the electric control element, and the plate body, the electric control element and the heat conducting plate are fixedly connected together; the liquid cooling plate is located on the first side of the heat conduction plate and abuts against the heat conduction plate, the heat conduction plate and the liquid cooling plate are disassembled and assembled on the first side of the liquid cooling plate, and according to the scheme, the maintenance process of the liquid cooling plate is easier and more convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning equipment, and more specifically, to an electric control heat dissipation structure and an air conditioner. Background Art

[0002] An outdoor unit of an air conditioner includes an electric control box, an electric control board, a liquid cooling plate and a heat pump flow path. The electric control board includes a board body and electric control components provided on the side surface of the board body. The liquid cooling plate is located on the side of the electric control components facing away from the board body and abuts against the electric control components. The liquid cooling plate is provided with an M-shaped refrigerant flow path, and the heat pump flow path is communicated with the refrigerant flow path. The electric control box includes a box body and a box cover. The electric control board and the liquid cooling plate are located inside the box body of the electric control box, and the electric control board is located between the liquid cooling plate and the end wall of the box body.

[0003] The manufacturing method of the electric control board is as follows: first, insert the pins of the electric control components into the welding holes on the board body, then make the liquid cooling plate abut tightly against the side surface of the electric control components facing away from the board body, then pass screws through the board body and the electric control components in sequence and tighten them on the liquid cooling plate, then pass through a soldering furnace to solder the pins in the welding holes, and finally solder and connect the heat pump flow path and the refrigerant flow path. In this solution, the tightness and flatness of the fit between the electric control components and the liquid cooling plate are good, which is beneficial to reducing the contact thermal resistance between the electric control components and the liquid cooling plate.

[0004] The heat dissipation process of the electric control board is as follows: the heat of the electric control components is transferred to the liquid cooling plate, and the refrigerant in the heat pump flow path absorbs the heat on the liquid cooling plate during the process of flowing through the refrigerant flow path. However, this solution has the following problems:

[0005] 1. The high temperature generated during the welding of the heat pump flow path and the refrigerant flow path is conducted to the electric control components, which is likely to cause damage to the electric control components. If the welded heat pump flow path and refrigerant flow path are assembled with the welded board body and electric control components, during the assembly process of the electric control board and the liquid cooling plate, the tightness and flatness of the fit between the electric control components and the liquid cooling plate are relatively poor, resulting in a large contact thermal resistance between the electric control components and the liquid cooling plate, which is not conducive to the heat dissipation of the electric control board.

[0006] 2. When repairing the liquid cooling plate, it is necessary to first remove the electric control box, then remove the box cover of the electric control box, then remove the assembly structure of the electric control board and the liquid cooling plate from the box body together, and then unscrew the screws from the side surface of the board body facing away from the electric control components to separate the liquid cooling plate and the electric control board before the liquid cooling plate can be repaired. This process is cumbersome and complex. Summary of the Utility Model

[0007] An embodiment of the present utility model provides an electric control heat dissipation structure, including: an electric control board, including a board body and electric control components provided on a first side of the board body; and a heat conduction plate, located on the first side of the electric control components and abutted against the electric control components, and the board body, the electric control components and the heat conduction plate are fixedly connected together; and a liquid cooling plate having a refrigerant flow channel, located on the first side of the heat conduction plate and abutted against the heat conduction plate, and the heat conduction plate and the liquid cooling plate are disassembled and assembled on the first side of the liquid cooling plate.

[0008] In some exemplary embodiments, the liquid cooling plate is provided with a first fitting hole, the heat conduction plate is provided with a first screw connection hole, and the electric control heat dissipation structure further includes a first screw, and a threaded section of the first screw passes through the first fitting hole from the first side of the liquid cooling plate and is screwed into the first screw connection hole.

[0009] In some exemplary embodiments, the board body is provided with a second fitting hole, the electric control components are provided with a third fitting hole, the heat conduction plate is provided with a second screw connection hole, and the electric control heat dissipation structure further includes a second screw, and a threaded section of the second screw passes through the second fitting hole and the third fitting hole in sequence from a second side of the board body and is screwed into the second screw connection hole, and the first side and the second side of the board body are opposite sides.

[0010] In some exemplary embodiments, a convex platform is provided on a side surface of the heat conduction plate, and both the first screw connection hole and the second screw connection hole are provided on the convex platform.

[0011] In some exemplary embodiments, one of the liquid cooling plate and the heat conduction plate is provided with a positioning portion, and the other is provided with a matching portion, and the positioning portion is matched with the matching portion to pre-position the liquid cooling plate on the heat conduction plate.

[0012] In some exemplary embodiments, the positioning portion is a positioning protrusion, the matching portion is a matching groove, and the positioning protrusion is inserted into the matching groove.

[0013] In some exemplary embodiments, the positioning portion is a graphic mark, the matching portion is a board edge, and the graphic mark is aligned with the board edge.

[0014] In some exemplary embodiments, the electric control heat dissipation structure further includes: a mounting bracket, spanning the liquid cooling plate on the first side of the liquid cooling plate and having a first fitting hole at an end, and the heat conduction plate is provided with a first screw connection hole; and a first screw, passing through the first fitting hole from the first side of the mounting bracket and being screwed into the first screw connection hole to clamp the liquid cooling plate between the mounting bracket and the heat conduction plate.

[0015] In some exemplary embodiments, process holes are provided in the end face of the liquid cooling plate, and a plugging head is provided in the process holes. The plugging head is located between the two ends of the mounting frame, and a pressing plate is provided on the mounting frame. The side face of the pressing plate abuts against the outer end face of the plugging head.

[0016] In some exemplary embodiments, the electronic control element is welded to the plate body through pins, and anti-tracking grooves are formed in the area of the heat conducting plate corresponding to the pins.

[0017] An embodiment of the present invention further provides an air conditioner, which includes a box body, a heat pump flow path, and the electronic control heat dissipation structure described in any one of the above embodiments. The heat pump flow path is communicated with the refrigerant flow channel. The liquid cooling plate is located at the opening of the box body, and the electronic control board is located between the heat conducting plate and the end wall of the box body.

[0018] In the electronic control heat dissipation structure provided by the embodiment of the present invention, the electronic control element is placed on the first side of the plate body, the heat conducting plate abuts against the electronic control element on the first side of the electronic control element. After the plate body, the electronic control element, and the heat conducting plate are fixedly connected together, they pass through a soldering furnace for welding to connect the electronic control element and the plate body. Then, the heat pump flow path of the air conditioner is connected to the refrigerant flow channel, such as by welding. Since the liquid cooling plate and the heat conducting plate are not in contact during this welding process, the electronic control element will not be damaged by heat. Then, the liquid cooling plate is made to abut against the heat conducting plate on the first side of the heat conducting plate, and then the heat conducting plate and the liquid cooling plate are installed on the first side of the liquid cooling plate. In this solution, the tightness and flatness of the fit between the electronic control element and the heat conducting plate are good, and the tightness and flatness of the fit between the heat conducting plate and the liquid cooling plate are good. Therefore, the contact thermal resistance between the electronic control element and the heat conducting plate is small, and the contact thermal resistance between the heat conducting plate and the liquid cooling plate is small, which is beneficial to dissipating heat from the electronic control board through the refrigerant flowing through the refrigerant flow channel. When repairing the liquid cooling plate, the liquid cooling plate can be directly removed from the heat conducting plate at the opening of the box body (i.e., the first side of the heat conducting plate), and then the liquid cooling plate can be repaired. This process does not require removing the box body, the heat conducting plate, and the electronic control board, so the repair process of the liquid cooling plate is simpler and more convenient.

[0019] Other features and advantages of the present invention will be described in the following description, and some of them will become obvious from the description, or be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the description and the drawings. Description of the Drawings

[0020] The drawings are used to provide a further understanding of the technical solutions of the present invention, and constitute a part of the description. They are used together with the embodiments of the present application to explain the technical solutions of the present invention, and do not constitute a limitation to the technical solutions of the present invention.

[0021] Figure 1 It is a schematic exploded view of the electronic control heat dissipation structure provided by some embodiments of the present invention;

[0022] Figure 2 is Figure 1 a schematic structural view of the second side perspective of the heat conduction plate;

[0023] Figure 3 is Figure 1 a schematic structural view of the second side perspective of the liquid cooling plate;

[0024] Figure 4 is a schematic structural view of the first side perspective of the heat conduction plate in some embodiments of the present utility model;

[0025] Figure 5 is a schematic structural view of the second side perspective of the liquid cooling plate in some embodiments of the present utility model;

[0026] Figure 6 is a schematic structural view of the second side perspective of the liquid cooling plate in some embodiments of the present utility model;

[0027] Figure 7 is a schematic structural view of the first side perspective of the heat conduction plate in some embodiments of the present utility model;

[0028] Figure 8 is a schematic structural view of the mounting bracket in some embodiments of the present utility model;

[0029] Figure 9 is a schematic structural view of the assembled mounting bracket, heat conduction plate and liquid cooling plate in some embodiments of the present utility model.

[0030] Among them, the corresponding relationship between the reference numerals and the component names is as follows:

[0031] 100 Electric control board, 110 Board body, 120 Electric control components, 121 Third mating hole, 122 Pin, 200 Heat conduction plate, 210 First screw hole, 220 Second screw hole, 230 Boss, 240 Graphic identification, 250 Creepage prevention groove, 300 Liquid cooling plate, 310 Connecting pipe, 320 First mating hole, 330 Second boss, 400 Mating groove, 500 Mounting bracket, 510 First mating hole, 520 Pressing plate, 600 Plugging head, 700 Positioning hole. Specific embodiments

[0032] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments and features in the present application can be combined with each other arbitrarily.

[0033] The air conditioner (not shown in the figure) provided by the embodiments of the present utility model includes a box body, a heat pump flow path and an electric control heat dissipation structure. AsFigures 1 to 7 , Figure 9 As shown in Figure 9 , the electric control heat dissipation structure includes: an electric control board 100, the electric control board 100 includes a board body 110 and electric control components 120 provided on the first side a of the board body 110; and a heat conducting plate 200, the heat conducting plate 200 is located on the first side a of the electric control components 120 and is in contact with the electric control components 120, and the board body 110, the electric control components 120 and the heat conducting plate 200 are fixedly connected together; and a liquid cooling plate 300 having a refrigerant flow channel, the liquid cooling plate 300 is located on the first side a of the heat conducting plate 200 and is in contact with the heat conducting plate 200, and the heat conducting plate 200 and the liquid cooling plate 300 are disassembled and assembled on the first side a of the liquid cooling plate 300. Among them, the heat pump flow path is connected to the refrigerant flow channel, the liquid cooling plate 300 is located at the opening of the box body, and the electric control board 100 is located between the heat conducting plate 200 and the end wall of the box body.

[0034] For this air conditioner, the electric control components 120 are placed on the first side a of the board body 110, the heat conducting plate 200 is in contact with the electric control components 120 on the first side a of the electric control components 120. After the board body 110, the electric control components 120 and the heat conducting plate 200 are fixedly connected together, they pass through a soldering furnace to weld and connect the electric control components 120 and the board body 110, so that the electric control components 120 are electrically connected to the board body 110. Then, the heat pump flow path and the refrigerant flow channel are welded and communicated. Since the liquid cooling plate 300 is not in contact with the heat conducting plate 200 during this welding process, the electric control components 120 will not be damaged by heat. Then, the liquid cooling plate 300 is made to be in contact with the heat conducting plate 200 on the first side a of the heat conducting plate 200, and then the heat conducting plate 200 and the liquid cooling plate 300 are installed on the first side a of the liquid cooling plate 300. In this solution, the tightness and flatness of the fit between the electric control components 120 and the heat conducting plate 200 are good, and the tightness and flatness of the fit between the heat conducting plate 200 and the liquid cooling plate 300 are good. Therefore, the contact thermal resistance between the electric control components 120 and the heat conducting plate 200 is small, and the contact thermal resistance between the heat conducting plate 200 and the liquid cooling plate 300 is small, which is beneficial to dissipating heat from the electric control board 100 through the refrigerant flowing through the refrigerant flow channel; when repairing the liquid cooling plate 300, the liquid cooling plate 300 can be directly removed from the heat conducting plate 200 at the opening of the box body (i.e., the first side a of the heat conducting plate 200), and then the liquid cooling plate 300 can be repaired. This process does not require removing the box body, the heat conducting plate 200 and the electric control board 100, so the repair process of the liquid cooling plate 300 is simpler and more convenient.

[0035] Among them, thermal conductive silicone grease is coated between the heat conducting plate 200 and the liquid cooling plate 300, and thermal conductive silicone grease is also coated between the heat conducting plate 200 and the electric control components 120, which can further reduce the contact thermal resistance between the electric control components 120 and the heat conducting plate 200, and the contact thermal resistance between the heat conducting plate 200 and the liquid cooling plate 300. The air conditioner also includes a box cover, and the box cover is installed on the opening of the box body. The electric control components 120 include variable frequency components.

[0036] In some exemplary embodiments, such as Figure 1 ,Figures 3 to 7 As shown, the liquid cooling plate 300 is provided with a first mating hole 320, the heat conducting plate 200 is provided with a first screw hole 210, and the electric control heat dissipation structure further includes a first screw. The threaded section of the first screw passes through the first mating hole 320 from the first side a of the liquid cooling plate 300 and is screwed into the first screw hole 210.

[0037] When the liquid cooling plate 300 is repaired, the first screw is removed from the opening of the box body (i.e., the first side a of the heat conducting plate 200), and then the liquid cooling plate 300 can be removed from the heat conducting plate 200 for repair. This process does not require the removal of the box body, the heat conducting plate 200, and the electric control board 100. Therefore, the repair process of the liquid cooling plate 300 in this solution is simpler and more convenient.

[0038] In some examples, as Figure 1 and Figure 2 shown, the plate body 110, the electric control component 120, and the heat conducting plate 200 are disassembled and assembled on the second side b of the plate body 110. The first side a and the second side b are opposite sides (for example, if the first side a is the upper side, then the second side b is the lower side). It can be that the plate body 110 is provided with a second mating hole, the electric control component 120 is provided with a third mating hole 121, the heat conducting plate 200 is provided with a second screw hole 220, and the electric control heat dissipation structure further includes a second screw. The threaded section of the second screw passes through the second mating hole and the third mating hole 121 from the second side b of the plate body 110 and is screwed into the second screw hole 220. The heat conducting plate 200 is a metal (such as aluminum or aluminum alloy, etc.) part, and the plate body 110 is a non-metal (such as epoxy resin, etc.) part. Compared with the second screw hole 220 being provided on the plate body 110, when the second screw hole 220 is provided on the heat conducting plate 200, the second screw hole 220 is less likely to slip, so that the second screw can be locked more firmly.

[0039] In some examples, as Figure 1 shown, the side surface of the heat conducting plate 200 is provided with a boss 230, and both the first screw hole 210 and the second screw hole 220 are provided on the boss 230. In this way, the number of bosses 230 provided is less, which is beneficial to reducing the manufacturing difficulty of the heat conducting plate 200. Moreover, the boss 230 can also increase the screwing depth of the first screw and the second screw, so that the electric control heat dissipation structure is more firmly assembled after being assembled.

[0040] In some examples, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7 shown, one of the liquid cooling plate 300 and the heat conducting plate 200 is provided with a positioning portion, and the other is provided with a mating portion. The positioning portion is matched with the mating portion to pre-position the liquid cooling plate 300 on the heat conducting plate 200, so that the installation speed of the liquid cooling plate 300 on the heat conducting plate 200 can be improved.

[0041] In some embodiments, the positioning portion is a positioning protrusion (or positioning post), and the mating portion is a mating groove 400 (or a positioning hole 700 that mates with the positioning post). The positioning protrusion is inserted into the mating groove 400 to achieve pre-positioning of the liquid cooling plate 300 on the heat conducting plate 200.

[0042] It can be, for example Figure 1 and Figure 3 As shown in, the positioning protrusion is a boss 230 protruding in the region between the two ends on the side surface of the heat conducting plate 200. The bosses 230 are arranged as a plurality of non-uniformly distributed ones, which can also play a role in preventing misassembly. When the heat conducting plate 200 is relatively thin, in order to ensure the screwing depth of the first screw and the second screw, bosses 230 are provided on the heat conducting plate 200. The first screw hole 210 and the second screw hole 220 are both provided on the bosses 230. Correspondingly, a mating groove 400 that mates with the bosses 230 is provided on the second side of the liquid cooling plate 300.

[0043] Or it can be, for example Figure 6 and Figure 7 As shown in, the positioning protrusion is a second boss 330 protruding at the two ends on the side surface of the liquid cooling plate 300. This solution can reduce the thickness of the region between the two ends of the liquid cooling plate 300 and increase the fitting area between the liquid cooling plate 300 and the heat conducting plate 200. Furthermore, as shown in Figure 6 and Figure 7 As shown in, the second boss 330 mates with the mating groove 400, which can also play a role in positioning and preventing misassembly during the assembly process of the liquid cooling plate 300 and the heat conducting plate 200.

[0044] The above can all achieve the purpose of this application, and its gist does not deviate from the design concept of the present utility model, so it will not be elaborated here and should all fall within the protection scope of this application.

[0045] In other examples, as shown in Figure 4 and Figure 5 As shown in, the positioning portion is a graphic mark 240, and the mating portion is the edge of the plate. The graphic mark 240 is aligned with the edge of the plate. When the heat conducting plate 200 reaches a certain thickness (at this time, the heat conducting plate 200 does not need to ensure the screwing depth of the first screw and the second screw by setting bosses), the fitting area between the liquid cooling plate 300 and the heat conducting plate 200 can be designed as a plane. Compared with the technical solutions in Figure 2 and Figure 3 , this solution can improve the tightness of the fit between the heat conducting plate 200 and the liquid cooling plate 300, and further reduce the contact thermal resistance between the heat conducting plate 200 and the liquid cooling plate 300. This solution also facilitates more evenly applying thermal grease between the heat conducting plate 200 and the liquid cooling plate 300, which can further improve the heat dissipation performance of the electronic control heat dissipation structure.

[0046] It can be, for example Figure 4 andFigure 5 As shown, a plurality of graphic markings 240 are provided on the side surface of the first side a of the heat conducting plate 200. A plurality of plate edges of the liquid cooling plate 300 are correspondingly aligned with the plurality of graphic markings 240. The placement position of the liquid cooling plate 300 on the side surface of the first side a of the heat conducting plate is defined by the plurality of graphic markings 240 on the first side a of the heat conducting plate 200, so as to realize pre-positioning and anti-fooling of the liquid cooling plate 300 on the heat conducting plate 200, and the purpose of the present application can also be realized. Its gist does not depart from the design concept of the present utility model, so it will not be elaborated here and should also fall within the protection scope of the present application.

[0047] In some other exemplary embodiments, such as Figure 8 and Figure 9 As shown, the electric control heat dissipation structure further includes: a bent mounting bracket 500. The mounting bracket 500 straddles the liquid cooling plate 300 on the first side a of the liquid cooling plate 300, and a set of first mating holes 510 are provided at each of the two end portions. The heat conducting plate 200 is provided with two sets of first screwing holes 210; and first screws. The first screws pass through the first mating holes 510 one by one from the first side a of the mounting bracket 500 and are screwed into the first screwing holes 210, so that the liquid cooling plate 300 is clamped between the mounting bracket 500 and the heat conducting plate 200, and the liquid cooling plate 300 and the heat conducting plate 200 are assembled together through the mounting bracket 500. Optionally, both ends of the liquid cooling plate 300 are fixed to the heat conducting plate 200 through two mounting brackets 500, so that the liquid cooling plate 300 is more firmly fixed on the heat conducting plate 200.

[0048] In some examples, such as Figure 1 , Figure 5 , Figure 6 and Figure 9 As shown, the refrigerant flow channel is a reciprocally bent structure (such as an M-shaped flow channel). Connection pipes 310 are welded to both ends of the refrigerant flow channel. Both ends of the refrigerant flow channel are welded and connected to the heat pump flow path through the two connection pipes 310. A process hole is provided on the end surface of the liquid cooling plate 300. A plug 600 is provided in the process hole. The plug 600 is located between the two ends of the mounting bracket 500. The mounting bracket 500 is provided with a pressing plate 520. The side surface of the pressing plate 520 abuts against the outer end surface of the plug 600, so as to improve the ability of the plug 600 to resist high-pressure impact of the refrigerant. Optionally, the liquid cooling plate 300 is arranged in the left-right direction. The refrigerant flow channel includes a plurality of straight flow channel segments that are sequentially communicated. Each straight flow channel segment extends in the left-right direction. The plurality of straight flow channel segments are sequentially arranged in the front-back direction. The process hole is located on the left end surface of the liquid cooling plate 300. The mounting bracket 500 straddles the end of the liquid cooling plate 300 in the front-back direction. The right side surface of the pressing plate 520 abuts against the outer end surface of the plug 600. The second boss 330 can increase the thickness of the end of the liquid cooling plate 300, so that the end of the liquid cooling plate 300 will not be burned out when the plug 600 and the connection pipe 310 are welded to the end of the liquid cooling plate 300.

[0049] In some examples, such as Figure 1 and Figure 2 shown, the electronic control component 120 is welded to the board body 110 through the pin 122, and an anti - creepage groove 250 is provided in the area of the heat - conducting plate 200 corresponding to the pin 122 to prevent the current on the electronic control board 100 from flowing to the heat - conducting plate 200 and the liquid - cooling plate 300, so that the use safety of the air conditioner is better.

[0050] In summary, for the air conditioner provided by the embodiment of the present utility model, the electronic control component is placed on the first side of the board body, the heat - conducting plate abuts against the electronic control component on the first side of the electronic control component. After the board body, the electronic control component and the heat - conducting plate are fixedly connected together, they pass through a soldering furnace to be soldered to connect the electronic control component and the board body. Then, the heat - pump flow path of the air conditioner and the refrigerant flow channel are soldered and communicated. Since the liquid - cooling plate and the heat - conducting plate do not abut during this soldering process, the electronic control component will not be damaged by heat. Then, the liquid - cooling plate abuts against the heat - conducting plate on the first side of the heat - conducting plate, and then the heat - conducting plate and the liquid - cooling plate are installed on the first side of the liquid - cooling plate. In this solution, the tightness and flatness of the fit between the electronic control component and the heat - conducting plate are good, and the tightness and flatness of the fit between the heat - conducting plate and the liquid - cooling plate are good. Therefore, the contact thermal resistance between the electronic control component and the heat - conducting plate is small, and the contact thermal resistance between the heat - conducting plate and the liquid - cooling plate is small, which is beneficial to dissipating heat from the electronic control board through the refrigerant flowing through the refrigerant flow channel. When repairing the liquid - cooling plate, the liquid - cooling plate can be directly removed from the heat - conducting plate at the opening of the box body (i.e., the first side of the heat - conducting plate) to repair the liquid - cooling plate. This process does not require removing the box body, the heat - conducting plate and the electronic control board, so the repair process of the liquid - cooling plate is simpler and more convenient.

[0051] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "periphery", "the 'mouth' - shaped structure", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the structure referred to has a specific orientation, is constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0052] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", "assembly" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", "fixed connection" can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0053] Although the embodiments disclosed by the present utility model are as above, the content described is only the embodiments adopted for facilitating the understanding of the present utility model, and is not intended to limit the present utility model. Any person skilled in the art within the field to which the present utility model pertains may make any modifications and changes in the form of implementation and details without departing from the spirit and scope disclosed by the present utility model. However, the scope of patent protection of the present utility model shall still be defined by the appended claims.

Claims

1. An electrically controlled heat dissipation structure, characterized in that: include: An electric control board, comprising a board body and an electric control element arranged on a first side of the board body; and a heat conducting plate, located at a first side of the electric control element and abutting against the electric control element, wherein the plate body, the electric control element and the heat conducting plate are fixedly connected together; and The liquid cooling plate having a coolant flow channel is located on the first side of the heat conducting plate and abuts against the heat conducting plate, and the heat conducting plate and the liquid cooling plate are assembled and disassembled on the first side of the liquid cooling plate.

2. The electrically controlled heat dissipation structure according to claim 1, characterized in that: The liquid cooling plate is provided with a first matching hole, the heat conducting plate is provided with a first screw hole, and the electrically controlled heat dissipation structure further comprises a first screw, the threaded section of the first screw passes through the first matching hole from the first side of the liquid cooling plate and is screwed into the first screw hole.

3. The electrically controlled heat dissipation structure according to claim 2, characterized in that: The plate body is provided with a second matching hole, the electric control element is provided with a third matching hole, the heat conducting plate is provided with a second screw hole, and the electric control heat dissipation structure also includes a second screw, the threaded section of the second screw passes through the second matching hole and the third matching hole in sequence from the second side of the plate body and is tightened in the second screw hole, and the first side of the plate body and the second side of the plate body are opposite sides.

4. The electrically controlled heat dissipation structure according to claim 3, characterized in that: A boss is provided on the side of the heat conducting plate, and the first screw connection hole and the second screw connection hole are both provided on the boss.

5. The electrically controlled heat dissipation structure according to claim 3, characterized in that: One of the liquid cooling plate and the heat conducting plate is provided with a positioning portion, and the other is provided with a matching portion, and the positioning portion cooperates with the matching portion to pre-position the liquid cooling plate on the heat conducting plate.

6. The electrically controlled heat dissipation structure according to claim 5, characterized in that: The positioning portion is a positioning protrusion, the matching portion is a matching groove, and the positioning protrusion is inserted into the matching groove; or The positioning portion is a graphic mark, the matching portion is a board edge, and the graphic mark is aligned with the board edge.

7. The electrically controlled heat dissipation structure according to claim 1, characterized in that: Also includes: A mounting frame, which spans the liquid cooling plate at a first side of the liquid cooling plate and has a first matching hole at an end thereof, and the heat conducting plate has a first screw hole; and A first screw passes through the first matching hole from a first side of the mounting frame and is screwed into the first screw hole, so that the liquid cooling plate is clamped between the mounting frame and the heat conducting plate.

8. The electrically controlled heat dissipation structure according to claim 7, characterized in that: The end surface of the liquid cooling plate is provided with a process hole, the process hole is provided with a plugging head, the plugging head is located between the two ends of the mounting frame, the mounting frame is provided with a pressing plate, and the side surface of the pressing plate abuts against the outer end surface of the plugging head.

9. The electrically controlled heat dissipation structure according to any one of claims 1 to 8, characterized in that: The electric control element is welded to the plate body via pins, and an anti-creeping groove is provided on the heat conducting plate in an area corresponding to the pins.

10. An air conditioner, characterized in that: It comprises a box body, a heat pump flow path and an electrically controlled heat dissipation structure as described in any one of claims 1 to 9, wherein the heat pump flow path is connected to the refrigerant flow channel, the liquid cooling plate is located at the opening of the box body, and the electrically controlled board is located between the heat conducting plate and the end wall of the box body.

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