Heat dissipation structure of vehicle-mounted domain controller

Abstract

The utility model discloses a heat dissipation structure of a vehicle-mounted domain controller, and relates to the technical field of vehicle-mounted domain controllers, the heat dissipation structure of the vehicle-mounted domain controller comprises a vehicle-mounted domain controller main body, the lower surface of the vehicle-mounted domain controller main body is provided with a plurality of heat dissipation fins, and the heat dissipation fins are arranged on the lower surface of the vehicle-mounted domain controller main body. A heat dissipation flow guide cover is arranged on the outer side of the lower end of the vehicle-mounted domain controller body, a U-shaped bottom plate is installed below the heat dissipation flow guide cover, notches are formed in the front end and the rear end of the heat dissipation flow guide cover correspondingly, end face plates are installed on the end faces of the notches in the front end and the rear end correspondingly, two exhaust fans are installed on the outer wall of the end face plate at the front end, and the exhaust fans are installed on the outer wall of the end face plate at the rear end correspondingly. According to the vehicle-mounted area controller heat dissipation structure, the problems that an existing vehicle-mounted area controller heat dissipation structure only depends on an external blowing unit at one end to induce air and dissipate heat, and when a controller operates at a high load, the temperature is difficult to effectively and rapidly volatilize are solved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle domain controller technology, specifically a heat dissipation structure for a vehicle domain controller. Background Technology

[0002] Currently, automotive domain controllers widely use high-performance SoC chips to implement complex automotive system solutions. High-performance SoC chips generate a lot of heat and have low junction temperatures, so a heat dissipation structure is needed to ensure the operating temperature of the automotive domain controller. Existing automotive domain controller heat dissipation structures, such as the one in CN220570857U, entitled "A Local Heat Dissipation Structure for an Automotive Domain Controller", include a housing that houses the automotive domain controller, a heat sink located inside the housing and in contact with the surface of the automotive domain controller, a guide element located inside the housing and used to form a stable airflow channel in the housing, and an external blowing unit. The housing is provided with an air inlet, and the guide element has a guide channel that connects the external blowing unit and the heat sink.

[0003] However, existing vehicle domain controller cooling structures rely solely on external air blowers at one end for heat dissipation, which makes it difficult to effectively and quickly dissipate heat when the controller is under high load. Therefore, we propose a cooling structure for vehicle domain controllers to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a heat dissipation structure for an in-vehicle domain controller, in order to solve the problem mentioned in the background art that the existing heat dissipation structure of the in-vehicle domain controller relies solely on the external air blowing unit at one end for heat dissipation, which makes it difficult to effectively and quickly dissipate the temperature when the controller is running under high load.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation structure for an in-vehicle domain controller, comprising an in-vehicle domain controller body, wherein a plurality of heat dissipation fins are provided on the lower surface of the in-vehicle domain controller body, a heat dissipation shroud is provided on the outer side of the lower end of the in-vehicle domain controller body, a U-shaped base plate is installed below the heat dissipation shroud, slots are provided at both the front and rear ends of the heat dissipation shroud, and end panels are installed on the end faces of the slots at both the front and rear ends, two exhaust fans are installed on the outer wall of the front end panel, and an exhaust fan is installed on the outer wall of the rear end panel, and a limit groove is provided inside the U-shaped base plate.

[0006] Preferably, both sides of the U-shaped base plate are connected to the vehicle domain controller body by first screws, and two positioning parts are provided on both sides of the inner wall of the slot. The end panel is connected to the positioning parts in the slot by second screws.

[0007] Preferably, both the exhaust fan and the extraction fan have dust filters installed on their outer walls.

[0008] Preferably, the interior of the limiting groove is provided with a breathable mesh, and the edge of the breathable mesh is equipped with a magnetic frame. The breathable mesh is magnetically connected to the limiting groove through the magnetic frame.

[0009] Preferably, both sides of the limiting groove are provided with disassembly grooves.

[0010] Preferably, shims are installed at the four corners of the lower end of the U-shaped base plate.

[0011] Preferably, the outer walls on both sides of the heat dissipation fins are provided with wave grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model sets several heat dissipation fins at the bottom of the vehicle domain controller body, and with the exhaust fan and air extraction fan at the front and rear of the heat dissipation guide shroud, as well as the ventilation mesh on the bottom surface, the front exhaust structure and the rear exhaust structure increase the airflow velocity through the heat dissipation fins. When the air is drawn in, some of the air can be introduced from the ventilation mesh on the bottom surface, which increases the air volume and thus significantly improves the heat dissipation efficiency. This solves the problem that the heat dissipation structure of the existing vehicle domain controller relies on the external blowing unit at one end for heat dissipation, which makes it difficult to effectively and quickly dissipate the temperature when the controller is running under high load.

[0014] 2. By setting corrugated grooves on the outer walls of both sides of the heat dissipation fins, the contact area between the heat dissipation fins and the air is increased, further enhancing the heat exchange effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the U-shaped base plate and end panel of the present invention in the separated state from the heat dissipation guide shroud.

[0017] Figure 3 This is a schematic diagram of the bottom structure of this utility model;

[0018] Figure 4 This is a partial enlarged view of point A of this utility model;

[0019] In the diagram: 1. Vehicle domain controller main body; 2. Heat dissipation shroud; 3. U-shaped base plate; 4. First screw; 5. End panel; 6. Second screw; 7. Exhaust fan; 8. Extraction fan; 9. Dust filter; 10. Groove; 11. Positioning component; 12. Limiting groove; 13. Ventilation mesh; 14. Elevating block; 15. Magnetic frame; 16. Disassembly groove; 17. Heat dissipation fins; 171. Wave groove. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Please see Figure 1-4 This utility model provides an embodiment of a heat dissipation structure for an in-vehicle domain controller, including an in-vehicle domain controller body 1. Multiple heat dissipation fins 17 are provided on the lower surface of the in-vehicle domain controller body 1. A heat dissipation shroud 2 is provided on the outer side of the lower end of the in-vehicle domain controller body 1. A U-shaped base plate 3 is installed below the heat dissipation shroud 2. Both the front and rear ends of the heat dissipation shroud 2 are provided with slots 10. End panels 5 are installed on the end faces of both the front and rear slots 10. Two exhaust fans 7 are installed on the outer wall of the front end panel 5, and an exhaust fan 8 is installed on the outer wall of the rear end panel 5. A limiting groove 12 is provided inside the U-shaped base plate 3.

[0022] Please see Figure 2 Both sides of the U-shaped base plate 3 are connected to the vehicle domain controller body 1 by the first screw 4. Two positioning parts 11 are provided on both sides of the inner wall of the slot 10. The end panel 5 is connected to the positioning parts 11 in the slot 10 by the second screw 6. Both the U-shaped base plate 3 and the end panel 5 are detachable structures, which facilitates inspection and maintenance.

[0023] Please see Figure 1 Dust filters 9 are installed on the outer walls of both the exhaust fan 7 and the extraction fan 8. The dust filters 9 can prevent dust from entering the heat dissipation shroud 2.

[0024] Please see Figure 2 and Figure 3 The limiting groove 12 is provided with a breathable mesh 13 inside. The edge of the breathable mesh 13 is equipped with a magnetic frame 15. The breathable mesh 13 is magnetically connected to the limiting groove 12 through the magnetic frame 15. Multiple limiting grooves 12 for installing the breathable mesh 13 are opened below the heat dissipation guide shroud 2, which can realize bottom heat dissipation, improve the efficiency of natural heat dissipation, and can draw air from the bottom with the exhaust fan 7 to improve heat dissipation efficiency.

[0025] Please see Figure 3 Both sides of the limiting groove 12 are provided with disassembly grooves 16, which can facilitate the separation of the magnetic frame 15 from the limiting groove 12.

[0026] Please see Figure 3 Elevating blocks 14 are installed at the four corners of the lower end of the U-shaped base plate 3. The elevating blocks 14 ensure that after the main body of the vehicle domain controller 1 is installed, there is a certain gap at the bottom, which facilitates airflow and heat dissipation from the bottom.

[0027] Please see Figure 4The outer walls on both sides of the heat dissipation fin 17 are provided with corrugated grooves 171, which increase the contact area between the heat dissipation fin 17 and the air and enhance the heat exchange effect.

[0028] Working principle: In use, the bottom of the vehicle domain controller body 1 is a heat dissipation shroud 2. The heat dissipation shroud 2 is equipped with several heat dissipation fins 17 connected to the bottom surface of the vehicle domain controller body 1. The front and rear ends of the heat dissipation shroud 2 are respectively equipped with exhaust fans 7 and exhaust fans 8. The U-shaped base plate 3 on the bottom surface is equipped with multiple ventilation nets 13. The device can be used with a temperature sensing module. The temperature sensing module is set with multiple thresholds. When the temperature is within the normal threshold range, the device uses natural wind cooling. When the temperature is slightly higher than the normal threshold range, the exhaust fan 8 at the rear end of the heat dissipation shroud 2 will run to introduce external air into the heat dissipation shroud 2, which will work with the heat dissipation fins 17 to achieve cooling. In this mode, when the temperature sensing module detects that the temperature does not decrease, it will further drive the exhaust fan 7 at the front end of the heat dissipation shroud 2 to run. Relying on the front exhaust and the air intake effect of the ventilation nets 13 below, the heat dissipation and cooling effect is improved.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat dissipation structure for an on-board domain controller, comprising an on-board domain controller body (1), characterized in that: The lower surface of the vehicle domain controller body (1) is provided with heat dissipation fins (17), and the heat dissipation fins (17) are arranged in parallel. A heat dissipation shroud (2) is provided on the outer side of the lower end of the vehicle domain controller body (1). A U-shaped base plate (3) is installed below the heat dissipation shroud (2). The front and rear ends of the heat dissipation shroud (2) are provided with slots (10). End panels (5) are installed on the end faces of the slots (10) at the front and rear ends. Two exhaust fans (7) are installed on the outer wall of the front end panel (5). An exhaust fan (8) is installed on the outer wall of the rear end panel (5). A limit groove (12) is provided inside the U-shaped base plate (3).

2. The heat dissipation structure of an on-board domain controller according to claim 1, characterized in that: Both sides of the U-shaped base plate (3) are connected to the vehicle domain controller body (1) by the first screw (4). Two positioning parts (11) are provided on both sides of the inner wall of the slot (10). The end panel (5) is connected to the positioning parts (11) in the slot (10) by the second screw (6).

3. The heat dissipation structure of an on-board domain controller according to claim 1, characterized in that: Dust screens (9) are provided on the outer walls of both the exhaust fan (7) and the extraction fan (8).

4. The heat dissipation structure of an on-board domain controller according to claim 1, characterized in that: The limiting groove (12) is provided with a breathable mesh (13), and a magnetic frame (15) is installed on the edge of the breathable mesh (13). The breathable mesh (13) is magnetically connected to the limiting groove (12) through the magnetic frame (15).

5. The heat dissipation structure of an on-board domain controller according to claim 4, characterized in that: Both sides of the limiting groove (12) are provided with disassembly grooves (16).

6. The heat dissipation structure of an on-board domain controller according to claim 1, characterized in that: Elevating blocks (14) are installed at the four corners of the lower end of the U-shaped base plate (3).

7. The heat dissipation structure of an on-board domain controller according to claim 1, characterized in that: Wave grooves (171) are provided on the outer walls of both sides of the heat dissipation fins (17).

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