Electric control box and air conditioner with same

Abstract

The electric control box comprises a box body, a circuit board, a first heat conduction plate and a second heat conduction plate, the box body comprises a first box cover, the first box cover is provided with a first opening area and a second opening area, and the first opening area and the second opening area are arranged at intervals. The circuit board comprises a substrate, a first heating device and a second heating device, the first heating device and the second heating device are arranged on the substrate, the first heating device corresponds to the first opening area, and the second heating device corresponds to the second opening area. The first heat-conducting plate is mounted on the substrate and is exposed from the first opening area, and a first matching part for embedding the radiating pipe is formed on the first heat-conducting plate; the second heat conduction plate is arranged on the first box cover and located in the second opening area, and a second matching part used for embedding the heat dissipation pipe is formed on the second heat conduction plate. The opening area is arranged on the first box cover, the first heat conduction plate and the second heat conduction plate are arranged at the opening area, the heat dissipation performance of the electric control box can be improved through cooperation of the heat dissipation pipe, the first heat conduction plate and the second heat conduction plate, and the first box cover with the opening area does not need to be made of metal heat conduction materials. Therefore, the overall weight and cost of the box body can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of air-conditioning equipment, in particular to an electric control box and an air conditioner having the same. Background Art

[0002] Some electric control boxes in the related art have difficulty in dissipating heat from the internal circuit boards, especially when the heating module integrates many functions, the heat dissipation difficulty is even greater. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides an electric control box having good heat dissipation performance.

[0004] The utility model also provides an air conditioner with the electric control box.

[0005] According to the first aspect of the present utility model, the electric control box includes: a box body, the box body includes a first box cover, the first box cover has a first opening area and a second opening area arranged at intervals; a circuit board, the circuit board is arranged in the box body, and includes a substrate and a first heating device and a second heating device arranged on the substrate, the first heating device is arranged corresponding to the first opening area, and the second heating device is arranged corresponding to the second opening area; a first heat conducting plate, the first heat conducting plate is installed on the substrate and exposed by the first opening area, and a first matching portion for embedding a heat dissipation pipe is formed on the first heat conducting plate; a second heat conducting plate, the second heat conducting plate is arranged on the first box cover and located in the second opening area, and a second matching portion for embedding a heat dissipation pipe is formed on the second heat conducting plate.

[0006] According to the electric control box of the embodiment of the present invention, by setting a first opening area on the box body opposite to the first heating device, and setting a second opening area on the box body opposite to the second heating device, and using the first heat conducting plate to quickly conduct the heat of the first heating device out of the box body through the first opening area, and the second heat conducting plate to quickly conduct the heat of the second heating device out of the box body through the second opening area, the heat dissipation efficiency of the first heating device and the second heating device can be improved. By arranging heat dissipation pipes on the first heat conducting plate and the second heat conducting plate, the heat transfer efficiency can be improved, further improving the heat dissipation performance of the electric control box. Moreover, since the cooperation of the first heat conducting plate, the second heat conducting plate and the heat dissipation pipe can achieve better heat dissipation, the first box cover with the first opening area and the second opening area does not need to use metal heat conductive material, and some lower-cost materials can be flexibly selected to process the first box cover, which is conducive to reducing the overall weight and cost of the box body.

[0007] In some embodiments, the first mating portion is formed as a first mating groove, which is formed on a surface of the first heat conducting plate facing away from the circuit board and is open in a direction away from the circuit board.

[0008] In some embodiments, the electric control box further includes a first pipe stopper for limiting the heat dissipation pipe engaged with the first engagement groove to the first heat conducting plate.

[0009] In some embodiments, the first tube limiter includes a first pressure cover, which is arranged on a side of the first heat conducting plate away from the circuit board and is fixedly installed relative to the first heat conducting plate to clamp the heat dissipation tube that cooperates with the first matching groove together with the first heat conducting plate.

[0010] In some embodiments, the electrical control box also includes: a bracket, which is arranged on the side of the first pressure cover away from the box body and supports the first pressure cover, and the first tube limiter includes a first elastic tube clamp arranged on the bracket, and the first elastic tube clamp is used to clamp the heat dissipation tube that cooperates with the first matching groove.

[0011] In some embodiments, a first through-hole is formed on a side of the box body away from the bracket, and the electrical control box includes a first connecting member, which passes through the box body, the circuit board, the first heat conducting plate and the first pressure cover through the first through-hole and is connected to the bracket so that the first pressure cover and the first heat conducting plate are relatively fixedly installed.

[0012] In some embodiments, the second mating portion is formed as a second mating groove, which is formed on a surface of the second heat conducting plate facing away from the circuit board and is open in a direction away from the circuit board.

[0013] In some embodiments, the electric control box further includes a second pipe stopper for limiting the heat dissipation pipe engaged with the second engagement groove to the second heat conducting plate.

[0014] In some embodiments, the second tube limiter includes a second pressure cover, which is arranged on a side of the second heat conducting plate away from the circuit board and is fixedly installed relative to the second heat conducting plate to clamp the heat dissipation tube that cooperates with the second matching groove together with the second heat conducting plate.

[0015] In some embodiments, the electrical control box also includes: a bracket, which is arranged on the side of the second pressure cover away from the box body and supports the second pressure cover, and the second tube limiter includes a second elastic tube clamp arranged on the bracket, and the second elastic tube clamp is used to clamp the heat dissipation tube that cooperates with the second matching groove.

[0016] In some embodiments, a second through hole is formed on the second heat conducting plate, and the electrical control box includes a second connecting member, which passes through the second heat conducting plate and the second pressure cover through the second through hole and is connected to the bracket, so that the second pressure cover and the second heat conducting plate are relatively fixedly installed.

[0017] In some embodiments, the electrical control box also includes a first tube limiting member for limiting the heat dissipation tube that cooperates with the first matching groove to the first heat conducting plate; the first tube limiting member includes a first pressure cover, which is arranged on the side of the first heat conducting plate away from the circuit board and is fixedly installed relative to the first heat conducting plate to clamp the heat dissipation tube that cooperates with the first matching groove together with the first heat conducting plate, and the bracket is an integral part and also carries the first pressure cover.

[0018] In some embodiments, the first mating groove and the second mating groove are both long strip grooves extending along a first direction, the first pressure cover and the second pressure cover are both long strip plates extending along the first direction, and the first pressure cover and the second pressure cover are spaced apart along a second direction orthogonal to the first direction.

[0019] In some embodiments, the electric control box further comprises: an isolation plate, which is disposed on a side of the bracket away from the box body and is snap-fitted with the bracket.

[0020] In some embodiments, the first heating device is arranged on a side of the substrate facing the first box cover; wherein a pad is sandwiched between the substrate and the first heat-conducting plate, and the pad is arranged to avoid the first heating device; and / or, the first heating device and the first heat-conducting plate are in contact and heat is transferred through a first heat-conducting medium.

[0021] In some embodiments, the first box cover is an integrally formed part, and the second heat conducting plate is integrally connected to the first box cover.

[0022] In some embodiments, the first box cover is a plastic part, and is connected to the second heat conducting plate by bonding, embedding or injection molding.

[0023] In some embodiments, the first heating device and the second heating device are arranged on the side of the substrate facing the first box cover, the height of the second heating device is greater than the height of the first heating device, the box body includes an integrally formed first box cover, the first box cover includes a first step portion and a second step portion, the distance from the first step portion to the substrate is less than the distance from the second step portion to the substrate, the first opening area is formed on the first step portion, and the second opening area is formed on the second step portion, and heat is transferred between the second heating device and the second heat-conducting plate through contact with a second heat-conducting medium.

[0024] In some embodiments, the box body further includes a second box cover, the first box cover and the second box cover are arranged along the thickness direction of the substrate and are covered and connected to each other, the second box cover has a snap-fit ​​portion, and the substrate is pre-installed on the second box cover through the snap-fit ​​portion.

[0025] In some embodiments, the box body includes a box body and an operation port cover, the box body has a wiring operation port, the operation port cover is sealed on the wiring operation port to close the wiring operation port so that the box body is a sealed box, the box body has a slot area located at the wiring operation port, and the slot area is provided with a sealing rubber ring for threading.

[0026] In some embodiments, the sealing rubber ring has an expandable opening that passes through in the direction of the operation port cover, and the expandable opening passes through the sealing rubber ring in a direction parallel to the operation port cover, and the wire body passes through the sealing rubber ring by stretching the expandable opening, and the operation port cover has a protrusion extending toward the box body, and the protrusion extends into the expandable opening.

[0027] In some embodiments, the box body includes a first box cover and a second box cover, the second box cover and the first box cover are arranged along the thickness direction of the substrate and cover each other, the card slot area and the wiring operation port are both formed on the first box cover, and the operation port cover is snap-fitted to the first box cover and / or connected by fasteners.

[0028] In some embodiments, the box body is a sealed box body; and / or, the electrical control box includes a heat dissipation pipe embedded in the first matching part and the second matching part, and the heat dissipation pipe embedded in the first matching part and the heat dissipation pipe embedded in the second matching part are different parts of the same heat dissipation pipe.

[0029] The air conditioner according to the second aspect of the present invention comprises a refrigerant circulation system and an electrical control box according to the first aspect of the present invention, wherein the refrigerant circulation system is used to provide cooling to the heat dissipation pipe embedded in the first matching part and / or the heat dissipation pipe embedded in the second matching part.

[0030] According to the air conditioner of the present invention, a refrigerant circulation system is used to provide cooling to the heat dissipation pipe for heat exchange with the first heat conduction plate and the second heat conduction plate. No additional heat dissipation parts are required to cooperate with the electronic control box, which can speed up the heat dissipation of the electronic control box, thereby reducing manufacturing costs and improving the working reliability of the air conditioner.

[0031] In some embodiments, the electrical control box is arranged in the outdoor unit of the air conditioner, at least part of the refrigerant pipe in the outdoor unit serves as the heat dissipation pipe and is embedded in the first matching part and / or the second matching part; and / or, the refrigerant circulating in the refrigerant circulation system is a flammable refrigerant.

[0032] In some embodiments, the electrical control box is arranged in the outdoor unit of the air conditioner, and the space inside the outdoor unit is divided into a fan chamber and a compressor chamber by a middle partition. At least part of the electrical control box is arranged in the compressor chamber, and the electrical control box includes the isolation plate, and the isolation plate blocks the compressor in the compressor chamber and the box body.

[0033] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is an exploded view of the structure of an electric control box according to one embodiment of the present utility model;

[0035] Figure 2 This is a structural diagram of a first box cover according to an embodiment of the present utility model;

[0036] Figure 3 This is an exploded view of the structure of an electric control box according to another embodiment of the present utility model;

[0037] Figure 4 This is a structural exploded view of the electric control box according to one embodiment of the present invention from another angle;

[0038] Figure 5 This is a structural exploded view of the electric control box according to one embodiment of the utility model from another angle;

[0039] Figure 6 Schematic diagram of the distance between the first cover and the base plate according to one embodiment of the present utility model;

[0040] Figure 7 is based on Figure 3 A partial enlarged view of area A of the example shown;

[0041] Figure 8 This is a structural diagram of a first box cover and a sealing rubber ring according to an embodiment of the present utility model;

[0042] Figure 9 This is a structural diagram of a first box cover and an operating port cover according to an embodiment of the present utility model;

[0043] Figure 10 This is a structural diagram of a first box cover according to an embodiment of the present utility model;

[0044] Figure 11 This is a structural schematic diagram of the first box cover and the sealing rubber ring from another angle according to an embodiment of the utility model;

[0045] Figure 12 This is a schematic structural diagram of an operating port cover according to an embodiment of the present utility model;

[0046] Figure 13 is a partial structural diagram of an outdoor unit according to an embodiment of the present application;

[0047] Figure 14 It is a structural schematic diagram of a refrigerant circulation system according to an embodiment of the present application.

[0048] Reference numerals:

[0049] Outdoor unit 1000; fan chamber 1001; compressor chamber 1002;

[0050] Electric control box 100; first direction X; second direction Y;

[0051] Box body 1; first opening area 1a; second opening area 1b; box body 11; first cover 111; first step portion 1111; second step portion 1112; wiring operation port 1113; card slot area 1114; second cover 112; first through hole 1122; operation port cover 12; protrusion 121;

[0052] Circuit board 2; substrate 21; first heating element 22; second heating element 23; heat pipe 3;

[0053] First heat conducting plate 41; first matching portion 411; first matching groove 411a; second heat conducting plate 42; second matching portion 421; second matching groove 421a; second through hole 422;

[0054] First tube stopper 51; first gland 511; first stopper groove 5111; first elastic tube clamp 512; second tube stopper 52; second gland 521; second stopper groove 5211; second elastic tube clamp 522;

[0055] Bracket 6; first bracket portion 61; second bracket portion 62;

[0056] Pad frame 7; isolation plate 8; sealing rubber ring 9; expandable opening 91; hollow hole 92;

[0057] Refrigerant circulation system 200; compressor 201; outdoor heat exchanger 202; indoor heat exchanger 203;

[0058] Throttling device 204; reversing assembly 205; middle partition plate 300. DETAILED DESCRIPTION

[0059] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0060] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will appreciate the applicability of other processes and / or the use of other materials.

[0061] The electric control box 100 according to the first embodiment of the present invention will be described below with reference to the accompanying drawings.

[0062] According to the electric control box 100 of the embodiment of the present utility model, Figure 1 and Figure 2 As shown, the electric control box 100 includes: a box body 1, a circuit board 2, a first heat conducting plate 41, and a second heat conducting plate 42. The box body 1 includes a first box cover 111, which has a first opening area 1a and a second opening area 1b spaced apart. The circuit board 2 is disposed within the box body 1 and includes a substrate 21 and a first heating element 22 and a second heating element 23 disposed on the substrate 21. The first heating element 22 is disposed corresponding to the first opening area 1a, and the second heating element 23 is disposed corresponding to the second opening area 1b. The first heat conducting plate 41 is mounted on the substrate 21 and exposed by the first opening area 1a. The first heat conducting plate 41 is formed with a first mating portion 411 for embedding the heat pipe 3. The second heat conducting plate 42 is disposed on the first box cover 111 and is located in the second opening area 1b. The second heat conducting plate 42 is formed with a second mating portion 421 for embedding the heat pipe 3.

[0063] The first mating portion 411 can be of any shape and can be a through-hole extending along the axial direction of the heat pipe 3 and open at both axial ends, or a slot extending along the axial direction of the heat pipe 3 and open at both axial ends and radially around the circumference. Similarly, the second mating portion 421 can be of any shape and can be a through-hole extending along the axial direction of the heat pipe 3 and open at both axial ends, or a slot extending along the axial direction of the heat pipe 3 and open at both axial ends and radially around the circumference.

[0064] The circuit board 2 is arranged in the box body 1. The first heating device 22 and the second heating device 23 on the circuit board 2 generate heat when working. The heat of the circuit board 2 can be indirectly transferred to the box body 1 through heat exchange with the air. The circuit board 2 can also transfer the heat directly to the box body 1 by thermal radiation. The box body 1 then transfers the heat of the circuit board 2 to the external environment to dissipate heat from the circuit board 2.

[0065] By installing a first heat conducting plate 41 on the base plate 21, the first heat conducting plate 41 is located at the first heating element 22, and by providing a second heat conducting plate 42 on the first box cover 111, the second heat conducting plate is located at the second heating element 23. The first heat conducting plate 41 and the second heat conducting plate 42 have better thermal conductivity than air, which can improve the heat dissipation efficiency of the first heating element 22 and the second heating element 23. At the same time, by providing a first opening area 1a on the box body 1 opposite the first heating element 22, and providing a second opening area 1b on the box body 1 opposite the second heating element 23, the first heat conducting plate 41 is exposed by the first opening area 1a, and the second heat conducting plate 42 is exposed by the second opening area 1b. Compared with the box body 1, the heat dissipation efficiency of the first heat conducting plate 41 and the second heat conducting plate 42 is higher, which can further improve the heat dissipation speed of the circuit board 2.

[0066] The first heat conducting plate 41 is mounted on the base plate 21 and is located at the first heating element 22. Optionally, the first heat conducting plate 41 and the first heating element 22 are in indirect contact and heat transfer via air or a non-gaseous heat conducting medium; alternatively, the first heat conducting plate 41 and the first heating element 22 are in direct contact and heat transfer. The second heat conducting plate 42 is provided on the first box cover 111. Optionally, the second heat conducting plate 42 and the second heating element 23 are in indirect contact and heat transfer via air or a non-gaseous heat conducting medium; alternatively, the second heat conducting plate and the second heating element 23 are in direct contact and heat transfer.

[0067] Compared with setting up an entire heat conducting plate to correspond to the first heating device and the second heating device at the same time, the first heat conducting plate 41 is set to dissipate heat for the first heating device 22, and the second heat conducting plate 42 is set to dissipate heat for the second heating device 23. The first heat conducting plate 41 and the second heat conducting plate 42 work independently, which can improve the heat dissipation reliability; and the overall area of ​​the first heat conducting plate 41 and the second heat conducting plate 42 is smaller, which can save manufacturing costs.

[0068] By forming a first matching portion 411 on the first heat conducting plate 41 and embedding the heat dissipation pipe 3 in the first matching portion 411 , the heat dissipation pipe 3 is used to cool the first heat conducting plate 41 , thereby accelerating heat conduction between the first heat conducting plate 41 and the first heating element 22 , thereby improving the heat dissipation efficiency of the electric control box 100 .

[0069] Similarly, by forming a second matching portion 421 on the second heat conducting plate 42, the heat dissipation pipe 3 is embedded in the second matching portion 421, and the heat dissipation pipe 3 is used to cool the second heat conducting plate 42, which can accelerate the heat conduction between the second heat conducting plate 42 and the second heating element 23, thereby improving the heat dissipation efficiency of the electronic control box 100.

[0070] According to the electric control box 100 of the embodiment of the present utility model, by providing a first opening area 1a on the box body 1 opposite the first heating element 22, and providing a second opening area 1b on the box body 1 opposite the second heating element 22, and utilizing the first heat conducting plate 41 to quickly conduct heat from the first heating element 22 out of the box body 1 through the first opening area 1a, and the second heat conducting plate 42 to quickly conduct heat from the second heating element 23 out of the box body 1 through the second opening area 1b, the heat dissipation efficiency of the first heating element 22 and the second heating element 23 can be improved. Furthermore, by arranging the heat pipes 3 on the first heat conducting plate 41 and the second heat conducting plate 42, the heat transfer efficiency can be improved, further enhancing the heat dissipation performance of the electric control box 100. Moreover, since better heat dissipation can be achieved through the cooperation of the first heat conducting plate 41, the second heat conducting plate 42 and the heat dissipation pipe 3, the first box cover 111 with the first opening area 1a and the second opening area 1b does not need to use metal heat-conducting materials, and some lower-cost materials (such as plastic, etc.) can be flexibly selected to process the first box cover 111, which is beneficial to reducing the overall weight and cost of the box body 1.

[0071] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the first matching portion 411 is formed as a first matching groove 411 a . The first matching groove 411 a is formed on a surface of the first heat conducting plate 41 facing away from the circuit board 2 and is open toward a direction away from the circuit board 2 .

[0072] By providing the first matching groove 411a, the arrangement stability of the heat dissipation pipe 3 on the first heat conduction plate 41 can be improved, the separation of the heat dissipation pipe 3 and the first heat conduction plate 41 when impacted can be improved, and the reliability of heat exchange between the heat dissipation pipe 3 and the first heat conduction plate 41 can be improved.

[0073] The first matching groove 411a is formed on the surface of the first heat conducting plate 41 on the side away from the circuit board 2. The heat pipe 3 can be assembled to the first heat conducting plate 41 after the first heat conducting plate 41 and the substrate 21 are assembled, which reduces the assembly difficulty.

[0074] In some embodiments of the present invention, Figure 1 As shown, the electric control box 100 further includes a first tube stopper 51 for limiting the heat dissipation tube 3 engaged with the first engagement groove 411 a to the first heat conducting plate 41 .

[0075] By providing the first matching groove 411a and the first tube limiter 51, the arrangement stability of the heat dissipation tube 3 on the first heat conducting plate 41 can be improved, the separation of the heat dissipation tube 3 from the first heat conducting plate 41 when impacted can be improved, and the reliability of heat exchange between the heat dissipation tube 3 and the first heat conducting plate 41 can be improved.

[0076] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the first tube limiter 51 includes a first pressure cover 511, which is arranged on the side of the first heat conducting plate 41 away from the circuit board 2 and is fixedly installed relative to the first heat conducting plate 41 to clamp the heat dissipation tube 3 that cooperates with the first matching groove 411a together with the first heat conducting plate 41.

[0077] By providing the first pressing cap 511 and the first heat conducting plate 41 to jointly sandwich the heat pipe 3, and by fixing the first pressing cap 511 to the first heat conducting plate 41, the arrangement stability of the heat pipe 3 can be further improved, preventing the heat pipe 3 from being dislodged from the first heat conducting plate 41 due to impact, and improving the stability of the contact and heat exchange between the heat pipe 3 and the first heat conducting plate 41. The first pressing cap 511 also protects the heat pipe 3 embedded in the first matching groove 411a, reducing the ingress of contaminants such as dust.

[0078] In some embodiments of the present invention, Figure 3 As shown, a first limiting groove 5111 is formed on the first pressing cover 511 . The first limiting groove 5111 is formed on one side surface of the first pressing cover 511 facing the first heat conducting plate 41 and is open toward the first heat conducting plate 41 .

[0079] The heat dissipation tube 3 embedded in the first matching groove 411a is accommodated in the first limiting groove 5111. By forming the first limiting groove 5111 on the first pressure plate, the matching degree with the heat dissipation tube 3 is better, and the first pressure cover 511 can be prevented from squeezing the heat dissipation tube 3 and causing damage to the heat dissipation tube 3.

[0080] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, the electric control box 100 also includes: a bracket 6, which is arranged on the side of the first pressure cover 511 away from the box body 1 and supports the first pressure cover 511, and the first tube limiter 51 includes a first elastic tube clamp 512 arranged on the bracket 6, and the first elastic tube clamp 512 is used to clamp the heat dissipation tube 3 that cooperates with the first matching groove 411a.

[0081] The bracket 6 is used to support the first pressure cover 511, and a first elastic pipe clamp 512 is provided on the bracket 6. During the installation process of the electrical control box 100, the first pipe limiter 51 can be installed as a whole to limit the heat dissipation pipe 3, and then the first pipe limiter 51 and the heat dissipation pipe 3 can be installed to the first heat conduction plate 41, which can simplify the installation process and improve assembly efficiency.

[0082] By setting the first elastic tube clamp 512 on the bracket 6 to limit the heat dissipation tube 3, the heat dissipation tube 3 can be directly inserted into the open end of the first elastic tube clamp 512 to complete the assembly of the heat dissipation tube 3 and the first elastic tube clamp 512. The operation is simple and easy to use.

[0083] In some embodiments of the present invention, the first elastic tube clip 512 and the bracket 6 are integrally formed. This provides a strong sense of integrity and enhances the structural strength of the first elastic tube clip 512. Furthermore, because the first elastic tube clip 512 and the bracket 6 are integrally formed, the heat dissipation tube 3 can be inserted into the first elastic tube clip 512 without first assembling the first elastic tube clip 512 and the bracket 6. This simplifies the installation process and improves assembly and disassembly efficiency.

[0084] In some embodiments of the present invention, Figure 1 As shown, a first through hole 1122 is formed on the side of the box body 1 away from the bracket 6, and the electric control box 100 includes a first connecting member, which passes through the box body 1, the circuit board 2, the first heat conducting plate 41 and the first pressure cover 511 by the first through hole 1122 and is connected to the bracket 6, so that the first pressure cover 511 and the first heat conducting plate 41 are relatively fixedly installed.

[0085] By using a single first connector to connect the box body 1, circuit board 2, first heat conducting plate 41, and first gland 511 to the bracket 6, the number of connectors used can be reduced, manufacturing costs can be reduced, and the assembly process can be simplified. Furthermore, using a single first connector to connect the box body 1, circuit board 2, first heat conducting plate 41, and first gland 511 to the bracket 6 can improve the integrity of the electric control box 100.

[0086] The following briefly describes the installation process of the electric control box 100 according to one embodiment of the present invention.

[0087] First, the first heat conducting plate 41 is mounted on the base plate 21 .

[0088] Then, the first pressure cover 511 and the bracket 6 are assembled, and the heat dissipation pipe 3 is limited by the assembled whole of the bracket 6 and the first pressure cover 511, so that the bracket 6, the first pressure cover 511 and the heat dissipation pipe 3 are assembled into one body.

[0089] Finally, the first connecting member is formed by the first through hole 1122, which passes through the box body 1, the circuit board 2, the first heat conducting plate 41 and the first pressure cover 511 and is connected to the bracket 6, thereby installing the first heat conducting plate 41 and the substrate 21 as a whole together with the bracket 6, the first pressure cover 511 and the heat dissipation pipe 3, so that the first pressure cover 511 and the first heat conducting plate 41 are relatively fixedly installed.

[0090] In some embodiments of the present invention, Figure 3 As shown, the second matching portion 421 is formed as a second matching groove 421 a . The second matching groove 421 a is formed on a side surface of the second heat conducting plate 42 facing away from the circuit board 2 and is open toward a direction away from the circuit board 2 .

[0091] By providing the second matching groove 421a, the arrangement stability of the heat pipe 3 on the second heat conducting plate 42 can be improved, the separation of the heat pipe 3 and the second heat conducting plate 42 when impacted can be improved, and the reliability of heat exchange between the heat pipe 3 and the first heat conducting plate 42 can be improved.

[0092] The second matching groove 421a is formed on the surface of the second heat conducting plate 42 on the side away from the circuit board 2. After the second heat conducting plate 42 is assembled, the heat pipe 3 can be assembled to the second heat conducting plate 41, which reduces the difficulty of assembly.

[0093] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the electric control box 100 further includes a second tube stopper 52 for limiting the heat dissipation tube 3 engaged with the second engagement groove 421 a to the second heat conducting plate 42 .

[0094] By providing the second matching groove 421 a and the second tube stopper 52 , the arrangement stability of the heat dissipation tube 3 on the second heat conduction plate 42 can be improved, and the reliability of heat exchange between the heat dissipation tube 3 and the second heat conduction plate 42 can be improved.

[0095] In some embodiments of the present invention, Figure 1 As shown, the second tube limiter 52 includes a second pressure cover 521, which is arranged on the side of the second heat conducting plate 42 away from the circuit board 2 and is fixedly installed relative to the second heat conducting plate 42 to clamp the heat dissipation tube 3 that cooperates with the second matching groove 421a together with the second heat conducting plate 42.

[0096] By providing the second pressing cap 521 and the second heat conducting plate 42 to jointly sandwich the heat pipe 3, and by fixing the second pressing cap 521 to the second heat conducting plate 42, the arrangement stability of the heat pipe 3 can be further improved, preventing the heat pipe 3 from being dislodged from the second heat conducting plate 42 due to impact, and improving the stability of the contact and heat exchange between the heat pipe 3 and the second heat conducting plate 42. The second pressing cap 521 also protects the heat pipe 3 embedded in the second matching groove 421a, reducing the ingress of dust and other pollutants.

[0097] In some embodiments of the present invention, Figure 4 As shown, a second limiting groove 5211 is formed on the second pressing cover 521 . The second limiting groove 5211 is formed on one side surface of the second pressing cover 521 facing the second heat conducting plate 42 and is open toward the second heat conducting plate 42 .

[0098] The heat dissipation tube 3 embedded in the second matching groove 421a is accommodated in the second limiting groove 5211. By forming the second limiting groove 5211 on the second pressing plate, the matching degree with the heat dissipation tube 3 is better, and the second pressing cover 521 can be prevented from squeezing the heat dissipation tube 3 and causing damage to the heat dissipation tube 3.

[0099] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the electric control box 100 also includes: a bracket 6, which is arranged on the side of the second pressure cover 521 away from the box body 1 and supports the second pressure cover 521, and the second tube limiter 52 includes a second elastic tube clamp 522 arranged on the bracket 6, and the second elastic tube clamp 522 is used to clamp the heat dissipation tube 3 that cooperates with the second matching groove 421a.

[0100] The bracket 6 is used to support the second pressure cover 521, and a second elastic pipe clamp 522 is provided on the bracket 6. During the installation process of the electrical control box 100, the second pipe limiter 52 can be installed as a whole to limit the heat dissipation pipe 3, and then the first pipe limiter 51 and the heat dissipation pipe 3 can be installed to the second heat conduction plate 42, which can simplify the installation process and improve assembly efficiency.

[0101] By setting the second elastic tube clamp 522 on the bracket 6 to limit the heat dissipation tube 3, the heat dissipation tube 3 and the second elastic tube clamp 522 can be assembled by directly inserting the heat dissipation tube 3 from the open end of the second elastic tube clamp 522. The operation is simple and easy to use.

[0102] In some embodiments of the present invention, the second elastic tube clip 522 and the bracket 6 are integrally formed, and the bracket 6 has a strong integrity, which can improve the structural strength of the second elastic tube clip 522. In addition, because the second elastic tube clip 522 and the bracket 6 are integrally formed, it is not necessary to first assemble the second elastic tube clip 522 and the bracket 6 when clamping the heat pipe 3 into the second elastic tube clip 522, which simplifies the installation process and improves assembly and disassembly efficiency.

[0103] In some embodiments of the present invention, Figure 3 As shown, a second through hole 422 is formed on the second heat conducting plate 42, and the electric control box 100 includes a second connecting member, which passes through the second heat conducting plate 42 and the second pressure cover 521 through the second through hole 422 and is connected to the bracket 6, so that the second pressure cover 521 and the second heat conducting plate 42 are relatively fixedly installed.

[0104] By using a second connecting member to connect the second heat conducting plate 42 and the first pressure cover 511 to the bracket 6 , the use of connecting members can be reduced, the manufacturing cost can be saved, and the assembly process can be simplified.

[0105] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, the first tube limiter 51 includes a first pressure cover 511, which is arranged on the side of the first heat conducting plate 41 away from the circuit board 2 and is fixedly installed relative to the first heat conducting plate 41 to clamp the heat dissipation tube 3 that cooperates with the first matching groove 411a together with the first heat conducting plate 41. The bracket 6 is an integral part and also carries the first pressure cover 511.

[0106] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, the bracket 6 includes an integrally formed first bracket portion 61 and a second bracket portion 62 . The first bracket portion 61 is used to support the first pressure cover 511 , and the second bracket portion 62 is used to support the second pressure cover 521 .

[0107] The following describes the installation process of the electric control box 100 according to one embodiment of the present invention.

[0108] First, the circuit board 2 is snap-connected to the second box cover 112 .

[0109] The first heat conducting plate 41 is then mounted to the base plate 21 of the circuit board 2 .

[0110] Subsequently, the first pressure cover 511 and the bracket 6 are assembled, and the second pressure cover 521 and the bracket 6 are assembled, and the heat dissipation pipe 3 is limited by the overall assembly of the bracket 6, the first pressure cover 511 and the second pressure cover 521, so that the bracket 6, the first pressure cover 511, the second pressure cover 521 and the heat dissipation pipe 3 are assembled into one.

[0111] Next, the second connecting member has a second through hole 422 passing through the second heat conducting plate 42, and the second pressure cover 521 is connected to the bracket 6, and the second heat conducting plate 42 is integrally connected to the first box cover 111, so this installation process also forms an integral assembly of the first box cover 111 and the bracket 6.

[0112] Then, the first connecting member passes through the second box cover 112, the circuit board 2, the first heat conducting plate 41 and the first pressure cover 511 through the first through hole 1122 and is connected to the bracket 6, thereby installing the entire second box cover 112 and the entire bracket 6 together.

[0113] Finally, the first box cover 111 and the second box cover 112 are buckled and connected to each other.

[0114] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the first mating groove 411a and the second mating groove 421a are both long strip grooves extending along the first direction X, the first pressure cover 511 and the second pressure cover 521 are both long strip plates extending along the first direction X, and the first pressure cover 511 and the second pressure cover 521 are spaced apart along the second direction Y orthogonal to the first direction X.

[0115] The length direction of the first pressure cover 511 is consistent with the length direction of the first matching groove 411a, and the length direction of the second pressure cover 521 is consistent with the length direction of the second matching groove 421a, which can provide more complete limitation and protection for the heat dissipation pipe 3 in the first matching groove 411a and the heat dissipation pipe 3 in the second matching groove 421a, thereby reducing the movement and falling of the heat dissipation pipe 3.

[0116] By setting the first pressure cover 511 and the second pressure cover 521 to limit the heat dissipation pipe 3 in the first matching groove 411a and the second matching groove 421a respectively, compared with setting a whole pressure cover to cover the first matching groove 411a and the second matching groove 421a at the same time, the manufacturing cost can be reduced while ensuring the stability of the arrangement of the heat dissipation pipe 3; and the assembly difficulty of the electric control box 100 can be reduced.

[0117] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, the electric control box 100 further includes an isolation plate 8 , which is disposed on a side of the bracket 6 away from the box body 1 and is engaged with the bracket 6 .

[0118] After the first box cover 111 and the second box cover 112 are connected to the bracket 6 , the isolation plate 8 can support the bracket 6 , and the electric control box 100 is installed and arranged through the isolation plate 8 , thereby improving the arrangement stability of the electric control box 100 .

[0119] Furthermore, the isolation plate 8 can protect the electric control box 100 , thereby improving the electrical safety of the electric control box 100 , and can reduce the thermal interference of other components on the electric control box 100 , thereby improving the heat dissipation effect of the electric control box 100 .

[0120] In some embodiments of the present invention, Figure 3 and Figure 4As shown, the first heating element 22 is disposed on the side of the base plate 21 facing the first box cover 111 ; a support frame 7 is sandwiched between the base plate 21 and the first heat conducting plate 41 , and the support frame 7 is disposed to avoid the first heating element 22 .

[0121] It is worth noting that the first heating device 22 includes but is not limited to a rectifier bridge, an IGBT (Insulate-Gate Bipolar Transistor), a FRD (Fast Recovery Diode), an IPM (Intelligent Power Module), and the like.

[0122] The number of first heating elements 22 is relatively large, and the surfaces of the first heating elements 22 facing the first heat conducting plate 41 vary in height. Therefore, a spacer 7 is provided between the first heating elements 22 and the first heat conducting plate 41. The spacer 7 is positioned away from the first heating elements 22, thereby preventing interference between the first heat conducting plate 41 and the first heating elements 22, reducing wear on the first heating elements 22, and improving the operational reliability of the first heating elements 22. Furthermore, the provision of the spacer 7 improves the contact fit between the first heat conducting plate 41 and the first heating elements 22, thereby improving the heat exchange efficiency between the first heat conducting plate 41 and the first heating elements 22.

[0123] In some embodiments of the present invention, heat is transferred between the first heating element 22 and the first heat conducting plate 41 through contact via a first heat conducting medium.

[0124] Alternatively, the first heat-conducting medium may be a thermal pad or substrate with good thermal conductivity. Indirect heat exchange between the first heating element 22 and the first heat-conducting plate 41 occurs via the thermal pad or substrate, accelerating heat exchange between the first heating element 22 and the first heat-conducting plate 41. Alternatively, the first heat-conducting medium may be a coating structure such as thermal grease. Alternatively, the first heat-conducting medium may be a combination of several of the aforementioned heat-conducting media, which can be selected based on actual needs.

[0125] In some embodiments of the present invention, the first heat-conducting medium is an insulating heat-conducting medium. When a high voltage is applied to the circuit board 2 and the first heat-conducting plate 41 is made of metal, there is a risk of electrical conduction between the circuit board 2 and the first heat-conducting plate 41. Therefore, an insulating heat-conducting medium is provided between the first heating element 22 and the first heat-conducting plate 41 to prevent electrical conduction between the circuit board 2 and the first heat-conducting plate 41, thereby improving the safety of the electric control box 100.

[0126] In some embodiments of the present invention, Figure 5As shown, the first cover 111 is an integrally formed part, and the second heat conducting plate 42 is integrally connected to the first cover 111. The first cover 111 has a strong structural integrity, which can improve the structural strength of the first cover 111 and the sealing performance of the electric control box 100.

[0127] Furthermore, by integrally connecting the second heat conducting plate 42 and the first box cover 111, the matching of the circuit board 2 and the second heat conducting plate 42 can be completed when the circuit board 2 and the first box cover 111 are assembled, without the need to assemble the second heat conducting plate 42 additionally, which can simplify the installation process and improve the efficiency of assembly and disassembly.

[0128] In some embodiments of the present invention, the first box cover 111 is a plastic component, and is connected to the second heat conducting plate 42 by bonding, embedding or injection molding.

[0129] The first box cover 111 is a plastic part, which can improve the electrical safety of the electric control box 100 , reduce the manufacturing cost, and also contribute to the lightweight design of the electric control box 100 .

[0130] In some embodiments of the present invention, Figure 5 As shown, the second heating device 23 and the first heating device 22 are arranged on the same side of the substrate 21 facing the first box cover 111. The height of the second heating device 23 is greater than the height of the first heating device 22. The box body 1 includes an integrally formed first box cover 111, and the first box cover 111 includes a first step portion 1111 and a second step portion 1112. Figure 6 As shown, the distance H1 from the first step portion 1111 to the substrate 21 is smaller than the distance H2 from the second step portion 1112 to the substrate 21. Figure 2 As shown, the first opening area 1a is formed at the first step portion 1111 , the second opening area 1b is formed at the second step portion 1112 , and heat is transferred between the second heating element 23 and the second heat conducting plate 42 via the second heat conducting medium.

[0131] The first box cover 111 is located on a side of the substrate 21 of the circuit board 2 where the second heating device 23 and the first heating device 22 are arranged. The first box cover 111 is provided with a first opening area 1 a and a second opening area 1 b .

[0132] The height of the second heating device 23 is greater than that of the first heating device 22, the distance H1 from the first step portion 1111 to the substrate 21 is smaller, and the first heating device 22 is arranged at the position opposite to the substrate 21 and the first step portion 1111; the distance H2 from the second step portion 1112 to the substrate 21 is larger, and the second heating device 23 is arranged at the position opposite to the substrate 21 and the second step portion 1112.

[0133] Optionally, the first heating device 22 includes a power device, and the second heating device 23 includes a passive device.

[0134] Alternatively, the second heat-conducting medium may be a thermal pad or substrate with good thermal conductivity. Indirect heat exchange between the second heating element 23 and the second heat-conducting plate 42 via the thermal pad or substrate can reduce wear between the second heating element 23 and the second heat-conducting plate 42. Alternatively, the second heat-conducting medium may be a coating structure such as thermal grease. Alternatively, the second heat-conducting medium may be a combination of several of the aforementioned heat-conducting media, which can be selected based on actual needs.

[0135] In some embodiments of the present invention, the second heat-conducting medium between the second heating element 23 and the second heat-conducting plate 42 is an insulating heat-conducting member. When a high voltage is applied to the circuit board 22, if the second heat-conducting plate 42 is made of metal, there is a risk of electrical conduction between the circuit board 2 and the second heat-conducting plate 42. Therefore, providing an insulating heat-conducting medium between the second heating element 23 and the second heat-conducting plate 42 prevents electrical conduction between the circuit board 2 and the second heat-conducting plate 42, thereby improving the safety of the electric control box 100.

[0136] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the box body 1 further includes a second box cover 112. The first box cover 111 and the second box cover 112 are arranged along the thickness direction of the substrate 21 and are interlocked and connected. The second box cover 112 has a snap-fit ​​portion, and the substrate 21 is pre-installed on the second box cover 112 through the snap-fit ​​portion.

[0137] The first cover 111 is located on the side of the substrate 21 of the circuit board 2 where the second heating element 23 and the first heating element 22 are arranged. The second cover 112 is located on the side away from the substrate 21 where the second heating element 23 and the first heating element 22 are arranged. The first cover 111 is defined with a first opening area 1a and a second opening area 1b. The first cover 111 is used to assemble with the first heat conducting plate 41 and other components. Therefore, during assembly, the circuit board 2 is first pre-installed on the second cover 112, and then the second cover 112 is assembled with the first cover 111.

[0138] The base plate 21 is mounted on the second box cover 112 via the clamping portion. The assembly operation of the circuit board 2 and the second box cover 112 is simple, which can improve the assembly efficiency.

[0139] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the box body 1 includes a box body 11 and an operation port cover 12. The box body 11 has a wiring operation port 1113. Figure 8 and Figure 9 As shown, the operation port cover 12 is detachably provided on the wiring operation port 1113 to close the wiring operation port 1113 so that the box body 1 is a sealed box. Figure 7 and Figure 10As shown, the box body 11 has a card slot area 1114 located at the wiring operation port 1113, and the card slot area 1114 is provided with a sealing rubber ring 9 for threading.

[0140] The wires inserted into the box body 1 or extended from the box body 1 pass through the box body 1 through the wiring operation port 1113, and the operation port cover 12 covers the wiring operation port 1113, thereby protecting the wiring of the box body 1 and closing the wiring operation port 1113 to make the box body 1 a sealed box, thereby improving the sealing of the box body 1.

[0141] Wiring access port 1113 features a slot 1114 for mounting a sealing rubber ring 9, ensuring a stable connection between the sealing rubber ring 9 and the box body 1. Installing the sealing rubber ring 9 in wiring access port 1113 not only limits the position of the wires, improving the regularity of wiring routing, but also seals the wiring access port 1113, enhancing the airtightness of the electrical control box 100. Furthermore, the sealing rubber ring 9, as an insulating component, also enhances the electrical safety of the electrical control box 100.

[0142] By designing the box body 1 as a sealed box, that is, the box body 1 does not have a ventilation area for connecting the inside and outside of the box body 1, flammable refrigerant or water can be effectively prevented from entering the box body 1, thereby ensuring the electrical safety of the electronic control box 100.

[0143] It's worth noting that with rising environmental protection requirements, R290 is gradually replacing traditional refrigerants like R32 in air conditioners due to its cleanliness, ozone-safety, and minimal impact on the greenhouse effect. However, R290 is flammable. When leaked at low concentrations, it can explode when exposed to low-energy sparks. Therefore, the safety of R290 refrigerant usage must be ensured.

[0144] The electric control box 100 of the embodiment of the present invention is a sealed box, and the heat pipe 3 is completely separated from the space inside the box body 1 by the radiator and / or the box body 1, which can effectively prevent the flammable refrigerant from entering the box body 1 and contacting the heating device, thereby ensuring the safety of the electric control box 100. The electric control box 100 of the embodiment of the present invention can be used in air conditioners using R290 refrigerant.

[0145] In some embodiments of the present invention, Figure 8 and Figure 11As shown, the sealing rubber ring 9 has an expandable opening 91 and a hollow hole 92 that pass through the operating port cover 12, and the expandable opening 91 passes through the sealing rubber ring 9 in a direction parallel to the operating port cover 12. The wire body passes through the sealing rubber ring 9 by expanding the expandable opening 91. The operating port cover 12 has a protrusion extending toward the inside of the box body 11, and the protrusion extends into the expandable opening 91 and the hollow hole 92.

[0146] The expandable opening 91 can produce elastic deformation, and the wire body passes through the sealing rubber ring 9 by expanding the expandable opening 91, and the sealing rubber ring 9 fits tightly with the wire body at the expandable opening 91, thereby isolating the inside of the box body 1 from the outside world, sealing the wiring operation port 1113, and improving the sealing performance of the electric control box 100.

[0147] like Figure 8 As shown, there are multiple expandable openings 91 spaced apart, with a hollow hole 92 formed between adjacent expandable openings 91. Forming the hollow holes 92 between the expandable openings 91 not only facilitates the deformation of the expandable openings 91 and facilitates the threading of wires, thereby improving the assembly efficiency of the electrical control box 100, but also reduces manufacturing costs.

[0148] like Figure 12 As shown, a protrusion is provided on the side of the operation port cover 12 facing the box body 11, and the protrusion extends into the expandable opening 91 and the hollow hole 92. The operation port cover 12 and the sealing rubber ring 9 have a high degree of fit. The protrusion squeezes the expandable opening 91, so that the sealing rubber ring 9 fits tightly with the wire body, further improving the sealing performance at the wiring operation port 1113.

[0149] In some embodiments of the present invention, Figure 5 As shown, the box body 11 includes a first box cover 111 and a second box cover 112. The second box cover 112 and the first box cover 111 are arranged along the thickness direction of the substrate 21 and cover each other. Figure 7 As shown, the card slot area 1114 and the wiring operation port 1113 are both formed on the first box cover 111, and the operation port cover plate 12 is snap-fitted to the first box cover 111 and / or connected via fasteners.

[0150] The card slot area 1114 and the wiring operation port 1113 are both formed in the first cover 111, and the heat sink is also arranged between the first cover 111 and the heating device, which makes subsequent maintenance of the electric control box 100 more convenient. It can also reduce the structural complexity of the second cover 112 and reduce the manufacturing difficulty.

[0151] Optionally, the operation port cover 12 is snap-connected to the first box cover 111; or, further optionally, the operation port cover 12 is fixedly connected to the first box cover 111 by fasteners; or, further optionally, the operation port cover 12 is snap-fitted and positioned with the first box cover 111, and then fixedly connected by fasteners, which can improve the assembly efficiency and connection stability of the operation port cover 12 and the first box cover 111.

[0152] In some embodiments of the present application, the electric control box 100 includes a heat dissipation pipe 3 embedded in the first matching portion 411 and the second matching portion 421 , and the heat dissipation pipe 3 embedded in the first matching portion 411 and the heat dissipation pipe 3 embedded in the second matching portion 421 are different parts of the same heat dissipation pipe 3 .

[0153] Alternatively, as Figure 1 and Figure 3 As shown, the heat dissipation tube 3 in the first matching portion 411 and the heat dissipation tube 3 in the second matching portion 421 are the same, at least part of the heat dissipation tube 3 is matched with the first heat conducting plate 41, and at least part of the heat dissipation tube 3 is matched with the second heat conducting plate 42, and the first heating device 22 and the second heating device 23 are cooled at the same time through the same heat dissipation tube 3.

[0154] Alternatively, further optionally, there are two heat dissipation pipes 3 , which are respectively embedded in the first matching portion 411 on the first heat conducting plate 41 and the second matching portion 421 on the second heat conducting plate 42 .

[0155] In the second aspect, an embodiment of the present invention provides an air conditioner, including a refrigerant circulation system and an electrical control box 100 according to the embodiment of the first aspect of the present invention. The refrigerant circulation system 200 provides cooling to the heat dissipation pipe 3 matched with the first matching part 411 and / or the heat dissipation pipe 3 embedded in the second matching part 421.

[0156] The refrigerant circulation system 200 is used to provide cooling to the heat pipe 3 for heat exchange with the first heat conducting plate 41 and the second heat conducting plate 42. No additional heat dissipation components are required to cooperate with the electric control box 100, which can speed up the heat dissipation of the electric control box 100, thereby reducing the manufacturing cost and improving the working reliability of the air conditioner.

[0157] In some embodiments of the present invention, the refrigerant pipe in the refrigerant circulation system 200 serves as the heat dissipation pipe 3 and is embedded in the first matching portion 411 and / or the second matching portion 421 .

[0158] By using the refrigerant tube in the refrigerant circulation system 200 as the heat dissipation tube 3 in combination with the first matching portion 411 and / or the second matching portion 421 , the integrity and sealing of the refrigerant tube and the heat dissipation tube 3 of the refrigerant circulation system 200 can be improved, thereby reducing the occurrence of refrigerant leakage.

[0159] In other embodiments of the present invention, the refrigerant pipe in the refrigerant circulation system 200 is connected to the heat dissipation pipe 3 that is matched with the first matching part 411 and / or the second matching part 421, and the refrigerant in the refrigerant circulation system 200 is transported to the heat dissipation pipe 3 to provide cooling to the heat dissipation pipe 3.

[0160] The heat dissipation pipe 3 and the refrigerant circulation system 200 are separately provided, and the refrigerant pipe of the refrigerant circulation system 200 is connected to the heat dissipation pipe 3 after the refrigerant circulation system 200 and the heat dissipation pipe 3 are installed, which can reduce the difficulty of manufacturing the heat dissipation pipe 3.

[0161] In some embodiments of the present invention, the electric control box 100 is disposed in an outdoor unit of an air conditioner, and at least a portion of the refrigerant pipe in the outdoor unit serves as a heat dissipation pipe 3 and is embedded in the first matching portion 411 and / or the second matching portion 421 .

[0162] For example, Figure 14 As shown, the refrigerant circulation system 200 includes a compressor 201, an outdoor heat exchanger 202, an indoor heat exchanger 203, a throttling device 204 and a reversing component 205. The reversing component 205 is used to switch one of the outdoor heat exchanger 202 and the indoor heat exchanger 203 as a condenser and the other as an evaporator.

[0163] like Figure 14 As shown, the solid line with arrows represents the refrigerant circulation path in refrigerant circulation system 200 when the air conditioner is cooling the room. At this time, reversing assembly 205 connects the exhaust port of compressor 201 with outdoor heat exchanger 202, and connects the return air port of compressor 201 with indoor heat exchanger 203. Outdoor heat exchanger 202 acts as a condenser, and indoor heat exchanger 203 acts as an evaporator.

[0164] like Figure 14 As shown, the dotted line with an arrow represents the refrigerant circulation path in the refrigerant circulation system 200 when the air conditioner is heating the room. At this time, the reversing assembly 205 connects the exhaust port of the compressor 201 with the indoor heat exchanger 203, and connects the return air port of the compressor 201 with the outdoor heat exchanger 202. The outdoor heat exchanger 202 serves as the evaporator, and the indoor heat exchanger 203 serves as the condenser.

[0165] In some embodiments of the present invention, Figure 14 As shown, the refrigerant pipe located in the outdoor unit and connected between the throttling device 204 and the evaporator 203 serves as a heat dissipation pipe 3 and is matched with the first matching portion 411 and / or the second matching portion 421.

[0166] In other embodiments of the present invention, the refrigerant pipe located in the outdoor unit and connected between the reversing assembly 205 and the return air port of the compressor 201 can also be used as a heat dissipation pipe 3 to be matched with the first matching portion 411 and / or the second matching portion 421.

[0167] Of course, the present application is not limited thereto. In other embodiments of the present application, the refrigerant circulation system 200 may not include the reversing component 205 and may be a cooling-only system.

[0168] In some embodiments of the present invention, the refrigerant circulating in the refrigerant circulation system 200 is a flammable refrigerant.

[0169] By designing the electronic control box 100 as a sealed box and arranging the heat pipe 3 on the side of the first heat conductive plate 41 away from the first heating element 2251, the heat pipe 3 is set on the outside of the box body 11 to dissipate heat for the electronic control box 100, which can reduce the possibility of flammable refrigerant entering the electronic control box 100. While improving the heat dissipation efficiency of the electronic control box 100, it can also improve the safety of use.

[0170] In some embodiments of the present invention, Figure 13 As shown, the electric control box 100 is arranged in the outdoor unit 1000 of the air conditioner. The space inside the outdoor unit 1000 is divided into a fan chamber 1001 and a compressor chamber 1002 by a middle partition 300. At least part of the electric control box 100 is arranged in the compressor chamber 1002. The electric control box 100 includes an isolation plate 8, and the isolation plate 8 blocks the compressor in the compressor chamber 1002 and the box body 1.

[0171] The isolation plate 8 plays a supporting and protective role. The electric control box 100 is arranged on the middle partition 300 through the isolation plate 8. The isolation plate 8 blocks the compressor and the box body 1, thereby improving the electrical safety of the electric control box 100, and can also reduce the thermal interference of the compressor on the electric control box 100, thereby improving the heat dissipation effect of the electric control box 100.

[0172] In the description of the present invention, 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 to 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 invention 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 to the present invention.

[0173] 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 specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0174] In this utility model, unless otherwise expressly 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, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0175] In the present invention, 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 intermediary. 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.

[0176] 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 invention. 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.

[0177] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electric control box, characterized in that: include: A box body, the box body comprising a first box cover, the first box cover having a first opening area and a second opening area spaced apart from each other; a circuit board, the circuit board being disposed in the box body and comprising a substrate and a first heating element and a second heating element disposed on the substrate, the first heating element being disposed corresponding to the first opening area, and the second heating element being disposed corresponding to the second opening area; a first heat conducting plate, the first heat conducting plate being mounted on the substrate and exposed by the first opening area, the first heat conducting plate being formed with a first fitting portion for embedding a heat dissipation pipe; The second heat conducting plate is arranged on the first box cover and is located in the second opening area. A second matching portion for embedding a heat dissipation pipe is formed on the second heat conducting plate.

2. The electric control box according to claim 1, characterized in that: The first matching portion is formed as a first matching groove, which is formed on a surface of the first heat conducting plate that faces away from the circuit board and is open in a direction away from the circuit board.

3. The electric control box according to claim 2, characterized in that: The electric control box further includes a first pipe stopper for limiting the heat dissipation pipe matched with the first matching groove to the first heat conducting plate.

4. The electric control box according to claim 3, characterized in that: The first tube stopper includes a first pressure cover, which is arranged on a side of the first heat conducting plate away from the circuit board and is fixedly installed relative to the first heat conducting plate to clamp the heat dissipation tube that cooperates with the first matching groove together with the first heat conducting plate.

5. The electric control box according to claim 4, characterized in that: The electric control box also includes: The bracket is arranged on a side of the first pressure cover away from the box body and supports the first pressure cover. The first tube limiting member includes a first elastic tube clamp arranged on the bracket, and the first elastic tube clamp is used to clamp the heat dissipation tube that cooperates with the first matching groove.

6. The electric control box according to claim 5, characterized in that: A first through-hole is formed on a side of the box body away from the bracket, and the electric control box includes a first connecting member, which passes through the box body, the circuit board, the first heat conducting plate and the first pressure cover through the first through-hole and is connected to the bracket so that the first pressure cover and the first heat conducting plate are fixedly installed relative to each other.

7. The electric control box according to claim 1, characterized in that: The second matching portion is formed as a second matching groove, which is formed on a surface of the second heat conducting plate that faces away from the circuit board and is open in a direction away from the circuit board.

8. The electric control box according to claim 7, characterized in that: The electric control box further includes a second pipe limiting member for limiting the heat dissipation pipe matched with the second matching groove to the second heat conducting plate.

9. The electric control box according to claim 8, characterized in that: The second tube stopper includes a second pressure cover, which is arranged on a side of the second heat conducting plate away from the circuit board and is fixedly installed relative to the second heat conducting plate to clamp the heat dissipation tube that cooperates with the second matching groove together with the second heat conducting plate.

10. The electric control box according to claim 9, characterized in that: The electric control box also includes: The bracket is arranged on a side of the second pressure cover away from the box body and supports the second pressure cover. The second tube limiting member includes a second elastic tube clamp arranged on the bracket, and the second elastic tube clamp is used to clamp the heat dissipation tube that cooperates with the second matching groove.

11. The electric control box according to claim 10, characterized in that: A second through hole is formed on the second heat conducting plate, and the electric control box includes a second connecting member. The second connecting member passes through the second heat conducting plate and the second pressure cover through the second through hole and is connected to the bracket, so that the second pressure cover and the second heat conducting plate are relatively fixedly installed.

12. The electric control box according to claim 10, characterized in that: The first mating portion is formed as a first mating groove, which is formed on a surface of the first heat conducting plate on a side away from the circuit board and is open in a direction away from the circuit board. The electrical control box also includes a first tube limiting member for limiting the heat dissipation pipe mating with the first mating groove to the first heat conducting plate; the first tube limiting member includes a first pressure cover, which is arranged on a side of the first heat conducting plate away from the circuit board and is fixedly installed relative to the first heat conducting plate to clamp the heat dissipation pipe mating with the first mating groove together with the first heat conducting plate. The bracket is an integral part and also carries the first pressure cover.

13. The electric control box according to claim 12, characterized in that: The first mating groove and the second mating groove are both long strip grooves extending along the first direction, the first pressure cover and the second pressure cover are both long strip plates extending along the first direction, and the first pressure cover and the second pressure cover are spaced apart along a second direction orthogonal to the first direction.

14. The electric control box according to claim 5 or 10, characterized in that: Also includes: An isolation plate is provided on a side of the bracket away from the box body and is engaged with the bracket.

15. The electric control box according to claim 1, characterized in that: The first heating element is provided on a side of the substrate facing the first box cover; A support frame is provided between the substrate and the first heat conducting plate, and the support frame is provided to avoid the first heating element; and / or the first heating element and the first heat conducting plate are in contact and heat-transfer with each other through a first heat conducting medium.

16. The electric control box according to claim 1, characterized in that: The first box cover is an integrally formed part, and the second heat conducting plate is integrally connected to the first box cover.

17. The electric control box according to claim 16, characterized in that: The first box cover is a plastic part and is connected to the second heat conducting plate by bonding, embedding or injection molding.

18. The electric control box according to claim 1, characterized in that: The first heating device and the second heating device are arranged on the side of the substrate facing the first box cover, the height of the second heating device is greater than the height of the first heating device, the box body includes an integrally formed first box cover, the first box cover includes a first step portion and a second step portion, the distance from the first step portion to the substrate is less than the distance from the second step portion to the substrate, the first opening area is formed on the first step portion, and the second opening area is formed on the second step portion, and heat is transferred between the second heating device and the second heat conducting plate through contact with a second heat conducting medium.

19. The electric control box according to claim 1, characterized in that: The box body further includes a second box cover. The first box cover and the second box cover are arranged along the thickness direction of the substrate and are covered and connected to each other. The second box cover has a clamping portion therein, and the substrate is pre-installed on the second box cover through the clamping portion.

20. The electric control box according to claim 1, characterized in that: The box body includes a box body and an operation port cover. The box body has a wiring operation port. The operation port cover is sealed on the wiring operation port to close the wiring operation port so that the box body is a sealed box. The box body has a slot area located at the wiring operation port. The slot area is provided with a sealing rubber ring for threading.

21. The electric control box according to claim 20, characterized in that: The sealing rubber ring has an expandable opening that passes through in the direction of the operation port cover, and the expandable opening passes through the sealing rubber ring in a direction parallel to the operation port cover. The wire body passes through the sealing rubber ring by opening the expandable opening. The operation port cover has a protrusion that extends toward the box body, and the protrusion extends into the expandable opening.

22. The electric control box according to claim 20, characterized in that: The box body includes a first box cover and a second box cover, the second box cover and the first box cover are arranged along the thickness direction of the substrate and cover each other, the card slot area and the wiring operation port are both formed on the first box cover, and the operation port cover is snap-fitted to the first box cover and / or connected by fasteners.

23. The electric control box according to claim 1, characterized in that: The box body is a sealed box body; and / or the electric control box includes a heat dissipation pipe embedded in the first matching part and the second matching part, and the heat dissipation pipe embedded in the first matching part and the heat dissipation pipe in the second matching part are different parts of the same heat dissipation pipe.

24. An air conditioner, characterized in that: It comprises a refrigerant circulation system and an electric control box according to any one of claims 1 to 23, wherein the refrigerant circulation system is used to provide cooling to the heat dissipation pipe embedded in the first matching part and / or the heat dissipation pipe embedded in the second matching part.

25. The air conditioner according to claim 24, characterized in that The electronic control box is arranged in the outdoor unit of the air conditioner, at least part of the refrigerant pipe in the outdoor unit serves as the heat dissipation pipe and is embedded in the first matching part and / or the second matching part; and / or, the refrigerant circulating in the refrigerant circulation system is a flammable refrigerant.

26. The air conditioner according to claim 24, characterized in that The electronic control box is arranged in the outdoor unit of the air conditioner. The space inside the outdoor unit is divided into a fan chamber and a compressor chamber by a middle partition. At least part of the electronic control box is arranged in the compressor chamber. The electronic control box includes an isolation plate, and the isolation plate blocks the compressor in the compressor chamber and the box body.

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