Heat dissipation support and electric control assembly

By designing a heat dissipation plate and side plate structure with spaced intervals, and heat dissipation brackets with flow channels and chambers on the side plates, the problem of not being able to dissipate heat efficiently at the same time in the existing technology is solved, and efficient heat dissipation effect is achieved for multiple target components.

CN122161042APending Publication Date: 2026-06-05HON HAI PRECISION INDUSTRY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HON HAI PRECISION INDUSTRY CO LTD
Filing Date
2024-11-29
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing heat dissipation brackets cannot efficiently dissipate heat from multiple target components (such as electrical control boxes) at the same time, resulting in low heat dissipation efficiency.

Method used

A heat dissipation bracket is designed, including multiple heat dissipation plates, a first side plate and a second side plate. The heat dissipation plates are spaced apart along the thickness direction. The side plates are provided with flow channels and chambers. Coolant circulates through the flow channels and chambers to remove heat from the target component. An installation space is formed between the side plates for installing the target component.

Benefits of technology

It achieves efficient heat dissipation for multiple target components simultaneously, thus improving heat dissipation efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of heat dissipation of electric control assemblies, aims to solve the problem that existing heat dissipation supports cannot simultaneously dissipate heat for multiple target pieces (such as electric control boxes), and provides a heat dissipation support and an electric control assembly. The heat dissipation support comprises multiple heat dissipation plates, a first side plate and a second side plate, and the heat dissipation plates are defined in a length direction, a width direction and a thickness direction. The multiple heat dissipation plates are arranged at intervals in the thickness direction. Each heat dissipation plate is respectively provided with a first flow channel and a second flow channel which are arranged at intervals in the width direction. The first side plate is provided with a first chamber and a second chamber which are arranged at intervals in the width direction of the heat dissipation plate. The first side plate is provided with a water inlet and a water outlet, the water inlet is communicated with the first chamber, and the water outlet is communicated with the second chamber. The second side plate is provided with multiple communication channels. The heat dissipation plates can simultaneously contact multiple target pieces on the two side surfaces, so that the target pieces can be cooled.
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Description

Technical Field

[0001] This application relates to the field of heat dissipation structures for electronic control components, and more specifically, to a heat dissipation bracket and an electronic control component. Background Technology

[0002] Some existing heat dissipation brackets cannot dissipate heat for multiple target components (such as electrical control boxes) at the same time, resulting in low heat dissipation efficiency. Summary of the Invention

[0003] This application provides a heat dissipation bracket and an electronic control component to solve the problem that existing heat dissipation brackets cannot dissipate heat from multiple target components (such as electronic control boxes) at the same time, resulting in low heat dissipation efficiency.

[0004] An embodiment of this application provides a heat dissipation bracket, which includes multiple heat dissipation plates, a first side plate, and a second side plate. The heat dissipation plates define a length direction, a width direction, and a thickness direction. The multiple heat dissipation plates are spaced apart along the thickness direction. Each heat dissipation plate is provided with a first flow channel and a second flow channel spaced apart along the width direction. The first side plate has a first chamber and a second chamber, which are spaced apart along the width direction of the heat dissipation plate. The first side plate has an inlet and an outlet, with the inlet communicating with the first chamber and the outlet communicating with the second chamber. The second side plate has multiple connecting channels. Each heat dissipation plate is connected between the first side plate and the second side plate, and an installation space is defined between two adjacent heat dissipation plates for installing a target component. The end of the first flow channel of each heat dissipation plate near the first side plate communicates with the first chamber, and the end of the second flow channel near the first side plate communicates with the second chamber. The ends of the first and second flow channels of each heat dissipation plate near the second side plate are all connected to the corresponding connecting channels.

[0005] In the embodiments of this application, multiple spaced heat sinks can simultaneously dissipate heat from multiple target components, resulting in high heat dissipation efficiency.

[0006] In one possible embodiment, the first side plate includes a first plate body, a first cover plate, and a sealing structure. The first plate body and the first cover plate form an internal cavity, and the sealing structure is disposed in the internal cavity, dividing the internal cavity into a first cavity and a second cavity. An inlet and an outlet are respectively disposed on the first cover plate.

[0007] In one possible embodiment, the first plate has a first surface and a second surface. The first surface is located on the side of the first plate facing away from the second side plate, and the second surface is located on the side of the first plate facing the second side plate. The first plate has a first groove formed recessed from the first surface and a plurality of first mounting slots extending from the bottom surface of the first groove to the second surface. A first cover plate covers the first groove to form an internal chamber. A plurality of heat sinks are respectively mounted in the plurality of first mounting slots near one end of the first side plate. The first side plate also includes a convex island structure, which protrudes from the bottom surface of the first groove and abuts against the first cover plate. The convex island structure is located between two adjacent first mounting slots. The convex island structure includes a central island. The sealing structure includes two sealing blocks, which are respectively connected to both sides of the central island. The central island and the two sealing blocks together constitute a partition structure that divides the internal chamber into a first chamber and a second chamber.

[0008] In one possible embodiment, the convex island structure further includes a first side island and a second side island. The first side island is located within a first chamber and spaced from the intermediate island to define a first channel. The width of the first channel is less than the width of the portion of the first mounting groove located within the first chamber. The second side island is located within a second chamber and spaced from the intermediate island to define a second channel. The width of the second channel is less than the width of the portion of the first mounting groove located within the second chamber. The water inlet corresponds to the first channel along the length of the heat sink, and the water outlet corresponds to the second channel along the length of the heat sink.

[0009] In one possible embodiment, the second side plate includes a second plate body and a plurality of second cover plates. The second plate body has a plurality of second grooves, and the plurality of second cover plates respectively cover the plurality of second grooves to form a plurality of connecting channels.

[0010] In one possible embodiment, the second side plate further has a third surface and a fourth surface, the third surface being located on the side of the second plate facing the first side plate, and the fourth surface being located on the side of the second plate away from the first side plate. The second plate also has a second mounting groove that extends through the third surface and the second groove. One end of the heat sink near the second side plate fits into the second mounting groove and connects to the connecting channel.

[0011] In one possible embodiment, the first side plate has a second surface located on the side of the first side plate facing the second side plate. The second side plate also has a third surface located on the side of the second side plate facing the first side plate. The first side plate has a first limiting boss protruding from the second surface, and the second side plate has a second limiting boss protruding from the third surface. The first and second limiting bosses are opposite each other along the length of the heat sink. The mounting space includes a first subspace and a second subspace, which are located on either side of the first and second limiting bosses, respectively, and each subspace is used to accommodate a target component.

[0012] In one possible embodiment, the first side plate has a second surface located on the side of the first side plate facing the second side plate. The second side plate also has a third surface located on the side of the second side plate facing the first side plate. The first side plate has a first support platform protruding from the second surface, and the second side plate has a second support platform protruding from the third surface. The first and second support platforms are respectively used to support the two ends of the bottommost heat sink along its length. The space between the first and second support platforms is configured for mounting a target component.

[0013] In one possible embodiment, each heat sink has two heat dissipation surfaces facing away from each other along the thickness direction, and the heat dissipation surfaces are configured to conduct heat into contact with the target component.

[0014] Embodiments of this application also provide an electronic control assembly, which includes a heat sink bracket and a plurality of target components, wherein each target component is an electronic control box. Each target component is disposed on the heat sink bracket and is thermally connected to at least one heat sink plate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional view of a heat sink bracket according to an embodiment of this application.

[0017] Figure 2 for Figure 1 A cross-sectional view of the heat sink bracket along line AA, with the target component also shown in the figure.

[0018] Figure 3 for Figure 1 A 3D view of the heat sink.

[0019] Figure 4 for Figure 1 A three-dimensional view of the first side panel.

[0020] Figure 5 for Figure 4 Exploded view of the first side panel.

[0021] Figure 6 for Figure 2 A three-dimensional view of the second side panel.

[0022] Figure 7 for Figure 6 Exploded view of the second side panel.

[0023] Explanation of key component symbols: Electronic control components 1000 Target part 10 Heatsink bracket 100 Heat sink 11 First flow channel 111 Second flow channel 112 Heat dissipation surface 113 First side panel 12 First plate 121 First surface 1211 Second surface 1212 First groove 1213 First mounting slot 1214 First cover plate 122 Inlet 1221 Outlet 1222 Sealing structure 123 Sealing block 1231 Internal chamber 124 First chamber 1241 Second chamber 1242 Convex island structure 125 Intermediate Island 1251 First side island 1252 Second side island 1253 Separation structure 126 First Channel 1271 Second Channel 1272 First limiting protrusion 128 First support platform 129 Second side panel 13 Connecting Channel 131 Second plate 132 Second mounting slot 1321 Second cover plate 133 Second groove 134 Third surface 135 Fourth surface 136 Second limiting protrusion 137 Second support platform 138 Installation space 14 First Subspace 141 Second subspace 142 Length direction X Width direction Y Z-direction of thickness The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Some embodiments of this application are described in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] Example See Figure 1 This embodiment provides an electronic control component 1000, which can be used to control the motor of vehicles such as electric vehicles.

[0029] The electronic control assembly 1000 includes a heat dissipation bracket 100 and a plurality of target components 10. Each target component 10 is disposed on the heat dissipation bracket 100 for heat dissipation through the heat dissipation bracket 100.

[0030] In this embodiment, the target component 10 can be an electronic control box used to control the vehicle's motor. The electronic control box generates heat during use; this heat is dissipated through the heat dissipation bracket 100, ensuring the electronic control box remains at its normal operating temperature.

[0031] See Figures 2 to 7In this embodiment, the heat dissipation bracket 100 includes a first side plate 12, a second side plate 13, and a plurality of heat dissipation plates 11. The heat dissipation plates 11 define a length direction X, a width direction Y, and a thickness direction Z. The plurality of heat dissipation plates 11 are spaced apart along the thickness direction Z. Each heat dissipation plate 11 is provided with a first flow channel 111 and a second flow channel 112 spaced apart along the width direction Y. The first side plate 12 has a first chamber 1241 and a second chamber 1242, which are spaced apart along the width direction Y of the heat dissipation plate 11. The first side plate 12 has an inlet 1221 and an outlet 1222, with the inlet 1221 communicating with the first chamber 1241 and the outlet 1222 communicating with the second chamber 1242. The second side plate 13 has a plurality of connecting channels 131. Each heat sink 11 is connected between the first side plate 12 and the second side plate 13, and a mounting space 14 is defined between two adjacent heat sinks 11 for mounting the target component 10. The first flow channel 111 of each heat sink 11 connects to the first chamber 1241 at the end near the first side plate 12, and the second flow channel 112 connects to the second chamber 1242 at the end near the first side plate 12. The ends of the first flow channel 111 and the second flow channel 112 of each heat sink 11, near the second side plate 13, are both connected to corresponding connecting channels 131.

[0032] In this embodiment, the multiple spaced heat sinks 11 can simultaneously dissipate heat from multiple target components 10, resulting in high heat dissipation efficiency.

[0033] In this embodiment, the coolant enters the heat dissipation bracket 100 through the inlet 1221, passes through the first flow channel 111, the connecting channel 131, the second flow channel 112, and the second chamber 1242 in sequence, and then flows out of the heat dissipation bracket 100 through the outlet 1222. During this process, the coolant carries away the heat of the target component 10, thereby cooling the target component 10.

[0034] In this embodiment, the first side plate 12 includes a first plate body 121, a first cover plate 122, and a sealing structure 123. The first plate body 121 and the first cover plate 122 form an internal cavity 124. The sealing structure 123 is disposed in the internal cavity 124 and divides the internal cavity 124 into a first cavity 1241 and a second cavity 1242. The water inlet 1221 and the water outlet 1222 are respectively disposed on the first cover plate 122.

[0035] In this embodiment, the sealing structure 123 is disposed in the internal chamber 124 and connected to the two side walls of the internal chamber 124 to divide the internal chamber 124 into a first chamber 1241 and a second chamber 1242.

[0036] In this embodiment, the inlet 1221 and the outlet 1222 are connected to the first chamber 1241 so that coolant can enter the first chamber 1241 through the inlet 1221. The outlet 1222 is connected to the second chamber 1242 so that coolant can flow out of the second chamber 1242 through the outlet 1222.

[0037] In this embodiment, the first plate 121 has a first surface 1211 and a second surface 1212. The first surface 1211 is located on the side of the first plate 121 facing away from the second side plate 13, and the second surface 1212 is located on the side of the first plate 121 facing the second side plate 13. The first plate 121 has a first groove 1213 formed recessed from the first surface 1211, and a plurality of first mounting grooves 1214 extending from the bottom surface of the first groove 1213 to the second surface 1212. A first cover plate 122 covers the first groove 1213 to form an internal cavity 124. A plurality of heat sinks 11 are respectively mounted in the plurality of first mounting grooves 1214 near one end of the first side plate 12. The first side plate 12 also includes a protruding island structure 125, which protrudes from the bottom surface of the first groove 1213 and abuts against the first cover plate 122. The protruding island structure 125 is located between two adjacent first mounting grooves 1214. The convex island structure 125 includes a central island 1251. The sealing structure 123 includes two sealing blocks 1231, which are respectively connected to both sides of the central island 1251. The central island 1251 and the two sealing blocks 1231 together form a partition structure 126, which divides the internal chamber 124 into a first chamber 1241 and a second chamber 1242.

[0038] In this embodiment, the heat sink 11 extends into and is installed in the first mounting groove 1214 so that the first flow channel 111 is connected to the first chamber 1241 and the second flow channel 112 is connected to the second chamber 1242.

[0039] In this embodiment, the sealing block 1231 is connected to the two sides of the convex island structure 125 facing the two first grooves 1213 respectively, forming a partition structure 126. The two ends of the partition structure 126 are connected to the two side walls of the internal chamber 124 respectively, and divide the internal chamber 124 into a first chamber 1241 and a second chamber 1242.

[0040] In this embodiment, the sealing block 1231 is a gel material. In other embodiments, the sealing block 1231 may be other sealing materials.

[0041] In this embodiment, the convex island structure 125 further includes a first side island 1252 and a second side island 1253. The first side island 1252 is located within the first chamber 1241 and is spaced apart from the intermediate island 1251 to define a first channel 1271. The width of the first channel 1271 is less than the width of the portion of the first mounting groove 1214 located in the first chamber 1241. The second side island 1253 is located within the second chamber 1242 and is spaced apart from the intermediate island 1251 to define a second channel 1272. The width of the second channel 1272 is less than the width of the portion of the first mounting groove 1214 located in the second chamber 1242. The inlet 1221 corresponds to the first channel 1271 along the length X of the heat sink 11, and the outlet 1222 corresponds to the second channel 1272 along the length X of the heat sink 11.

[0042] In this embodiment, the inlet 1221 is connected to the middle of the first channel 1271 so that the coolant can enter the first channel 1271 and flow to both sides of the first channel 1271.

[0043] In this embodiment, the outlet 1222 is connected to the middle of the second channel 1272 so that the coolant can move from the second flow channel 112 to the middle of the second channel 1272 and flow out.

[0044] In this embodiment, the first side island 1252 cooperates with the middle island 1251 to form a first channel 1271. Coolant flows through the inlet 1221 to the first channel 1271. The width of the first channel 1271 is smaller than the width of the portion of the first mounting groove 1214 located in the first chamber 1241, so that the coolant is guided into the first flow channel 111.

[0045] In this embodiment, the second side plate 13 includes a second plate body 132 and a plurality of second cover plates 133. The second plate body 132 has a plurality of second grooves 134, and the plurality of second cover plates 133 respectively cover the plurality of second grooves 134 to form a plurality of connecting channels 131.

[0046] In this embodiment, the two ends of the connecting channel 131 are respectively connected to the first flow channel 111 and the second flow channel 112 to guide the coolant from the first flow channel 111 to the second flow channel 112.

[0047] In this embodiment, the second side plate 13 further has a third surface 135 and a fourth surface 136. The third surface 135 is located on the side of the second plate 132 facing the first side plate 12, and the fourth surface 136 is located on the side of the second plate 132 away from the first side plate 12. The second plate 132 also has a second mounting groove 1321, which extends from the bottom surface of the second groove 134 to the third surface 135. The end of the heat sink 11 near the second side plate 13 is fitted into the second mounting groove 1321 and connected to the connecting channel 131.

[0048] In this embodiment, the heat sink 11 is installed in the second mounting groove 1321 so that the first flow channel 111 and the second flow channel 112 are connected to the connecting channel 131, and the coolant can flow through the first flow channel 111 to the connecting channel 131 and then to the second flow channel 112.

[0049] In this embodiment, the heat sink 11 is a cuttable structure. By cutting the heat sink 11, the length of the heat sink 11 can be reduced, which can reduce the distance between the first side plate 12 and the second side plate 13, so that the heat sink 11 can match the target parts 10 of different lengths.

[0050] In this embodiment, the first side plate 12 has a second surface 1212, which is located on the side of the first side plate 12 facing the second side plate 13. The second side plate 13 also has a third surface 135, which is located on the side of the second side plate 13 facing the first side plate 12. The first side plate 12 has a first limiting boss 128 protruding from the second surface 1212, and the second side plate 13 has a second limiting boss 137 protruding from the third surface 135. The first limiting boss 128 and the second limiting boss 137 are opposite each other along the length direction X of the heat sink 11. The mounting space 14 includes a first subspace 141 and a second subspace 142, which are located on both sides of the first limiting boss 128 and the second limiting boss 137, respectively. The first subspace 141 and the second subspace 142 are respectively used to accommodate a target component 10.

[0051] In this embodiment, the first limiting boss 128 and the second limiting boss 137 are arranged opposite each other along the length direction X, dividing the installation space 14 into a first subspace 141 and a second subspace 142. When the target part 10 is fitted into the first subspace 141 and the second subspace 142, one end of the target part 10 along the thickness direction Z abuts against the heat sink 11 on one side, and the other end fits into the first limiting boss 128 and the second limiting boss 137, so as to clamp the target part 10 between the heat sink 11 and the side of the first limiting boss 128 and the second limiting boss 137 facing the heat sink 11.

[0052] In this embodiment, the first side plate 12 has a second surface 1212 located on the side of the first side plate 12 facing the second side plate 13. The second side plate 13 also has a third surface 135 located on the side of the second side plate 13 facing the first side plate 12. The first side plate 12 has a first support platform 129 protruding from the second surface 1212, and the second side plate 13 has a second support platform 138 protruding from the third surface 135. The first support platform 129 and the second support platform 138 are respectively used to support the two ends of the heat sink 11 located at the bottom layer in the longitudinal direction X. The space between the first support platform 129 and the second support platform 138 is configured for mounting a target component 10.

[0053] In this embodiment, the first support platform 129 and the second support platform 138 are opposite each other along the length direction X and form an installation gap. The installation gap fits at both ends of the target part 10 along the length direction X, so as to clamp the target part 10 between the first support platform 129 and the second support platform 138.

[0054] In this embodiment, each heat sink 11 has two heat dissipation surfaces 113 that are opposite to each other along the thickness direction Z. The heat dissipation surfaces 113 are configured to conduct heat to the target component 10.

[0055] In this embodiment, the heat dissipation surfaces 113 on both sides of the heat dissipation plate 11 along the thickness direction Z are connected to target components 10, so as to dissipate heat from multiple target components 10 at the same time, thereby improving the heat dissipation efficiency.

[0056] In summary, in the embodiments of this application, the heat dissipation bracket 100 sandwiches multiple heat dissipation plates 11 between the first side plate 12 and the second side plate 13 by setting opposite first side plate 12 and second side plate 13. The multiple heat dissipation plates 11 are spaced apart to form an installation space 14. The surfaces of the first side plate 12 and the second side plate 13 that connect to the installation space 14 are provided with a first limiting boss 128 and a second limiting boss 137, so that the target part 10 can be installed on both sides of the heat dissipation plate 11. The first side plate 12 has an inlet 1221 and an outlet 1222. The first side plate 12 has a first chamber 1241 and a second chamber 1242. The heat sink 11 has a first flow channel 111 and a second flow channel 112. The second side plate 13 has a connecting channel 131. Coolant can enter the first chamber 1241 from the inlet 1221, and then sequentially enter the first flow channel 111, the connecting channel 131, the second flow channel 112, and the second chamber 1242, before flowing out from the outlet 1222, thus completing the heat dissipation for the target component 10. Both sides of the heat sink 11's heat dissipation surfaces 113 are connected to target components 10, allowing for simultaneous heat dissipation of multiple target components 10, resulting in high heat dissipation efficiency.

[0057] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A heat dissipation bracket, characterized in that, include: Multiple heat sinks are defined in a length direction, a width direction, and a thickness direction; the multiple heat sinks are spaced apart along the thickness direction; each heat sink is provided with a first flow channel and a second flow channel spaced apart along the width direction. A first side plate, comprising a first chamber and a second chamber, the first chamber and the second chamber being spaced apart along the width direction of the heat sink; the first side plate having an inlet and an outlet, the inlet communicating with the first chamber and the outlet communicating with the second chamber; and... The second side panel has multiple connecting channels. Each of the heat sinks is connected between the first side plate and the second side plate, and an installation space is defined between two adjacent heat sinks. The installation space is used to install the target component. The first flow channel of each heat sink is connected to the first chamber at the end near the first side plate, and the second flow channel is connected to the second chamber at the end near the first side plate. The first flow channel and the second flow channel of each heat sink are both connected to the corresponding connecting channel at the end near the second side plate.

2. The heat dissipation bracket according to claim 1, characterized in that: The first side plate includes a first plate body, a first cover plate, and a sealing structure. The first plate body and the first cover plate form an internal cavity. The sealing structure is disposed in the internal cavity and divides the internal cavity into the first cavity and the second cavity. The inlet and the outlet are respectively located on the first cover plate.

3. The heat dissipation bracket according to claim 2, characterized in that: The first plate has a first surface and a second surface, the first surface being located on the side of the first plate away from the second side plate, and the second surface being located on the side of the first plate facing the second side plate; The first plate has a first groove formed from the indentation of the first surface, and a plurality of first mounting grooves extending from the bottom surface of the first groove to the second surface; the first cover plate covers the first groove to form the internal cavity; The ends of the multiple heat sinks near the first side plate are respectively installed in the multiple first mounting slots; The first side plate also includes a convex island structure, which protrudes from the bottom surface of the first groove and abuts against the first cover plate. The convex island structure is located between two adjacent first mounting grooves. The convex island structure includes a central island; The sealing structure includes two sealing blocks, which are respectively connected to both sides of the intermediate island. The intermediate island and the two sealing blocks together form a partition structure, which divides the internal chamber into a first chamber and a second chamber.

4. The heat dissipation bracket according to claim 3, characterized in that: The convex island structure also includes a first side island and a second side island; The first side island is located within the first cavity and is spaced apart from the middle island to define a first channel; the width of the first channel is less than the width of the portion of the first mounting groove located within the first cavity. The second side island is located within the second cavity and is spaced apart from the middle island to define a second channel; the width of the second channel is less than the width of the portion of the first mounting groove located within the second cavity; The water inlet corresponds to the first channel along the length of the heat sink, and the water outlet corresponds to the second channel along the length of the heat sink.

5. The heat dissipation bracket according to claim 1, characterized in that: The second side plate includes a second plate body and a plurality of second cover plates; The second plate has multiple second grooves, and multiple second cover plates respectively cover the multiple second grooves to form multiple connecting channels.

6. The heat dissipation bracket according to claim 5, characterized in that: The second side plate also has a third surface and a fourth surface, the third surface being located on the side of the second plate facing the first side plate, and the fourth surface being located on the side of the second plate away from the first side plate; The second plate body is also provided with a second mounting groove, which extends from the bottom surface of the second groove to the third surface; The end of the heat sink near the second side plate fits into the second mounting groove and is connected to the connecting channel.

7. The heat dissipation bracket according to claim 1, characterized in that: The first side plate has a second surface, which is located on the side of the first side plate facing the second side plate; The second side plate has a third surface located on the side of the second side plate facing the first side plate; The first side plate has a first limiting boss protruding from the second surface, and the second side plate has a second limiting boss protruding from the third surface; the first limiting boss and the second limiting boss are opposite to each other along the length direction of the heat sink. The installation space includes a first subspace and a second subspace, which are located on both sides of the first limiting boss and the second limiting boss, respectively. The first subspace and the second subspace are used to accommodate one of the target components.

8. The heat dissipation bracket according to claim 1, characterized in that: The first side plate has a second surface, which is located on the side of the first side plate facing the second side plate; The second side plate also has a third surface, which is located on the side of the second side plate facing the first side plate; The first side plate has a first support platform protruding from the second surface, and the second side plate has a second support platform protruding from the third surface; The first support platform and the second support platform are respectively used to support the two ends of the heat sink located at the bottom layer in the longitudinal direction; The space between the first support platform and the second support platform is configured to be used for mounting one of the target components.

9. The heat dissipation bracket according to claim 1, characterized in that: Each of the heat sinks has two heat dissipation surfaces that are opposite to each other along the thickness direction, and the heat dissipation surfaces are configured to conduct heat into contact with the target component.

10. An electronic control component, comprising: The heat dissipation bracket according to any one of claims 1-9; The target component is an electronic control box; The target component is disposed on the heat dissipation bracket and is thermally connected to at least one of the heat dissipation plates.