Automatic driving vehicle controller cooling device

Abstract

The invention discloses an automatic driving vehicle controller cooling device. The automatic driving vehicle controller cooling device comprises a controller. The cooling fins and the cooling fans are adopted, during working, the structure and the number of the cooling fins and the number of the cooling fans can be flexibly replaced according to different system load conditions, then the cooling area and the ventilation quantity are changed, the overall cooling effect is improved, heat can be better transmitted out, and the heat dissipation efficiency is improved. The use effect of the controller is ensured, and the cooling fins and the cooling fan both adopt detachable structures, so that personnel can perform flexible adjustment under the condition of not replacing the whole shield, the overall adjustment cost is reduced, the adjustment flexibility is improved, better use is facilitated, and the service life of the controller is prolonged. And the vapor chamber and the heat dissipation silicone grease are arranged between the heat dissipation fins and the protective cover, so that heat can be better transferred, the overall heat dissipation effect is further improved, and the heat dissipation structure has the advantages of being good in heat dissipation effect and convenient and fast to exchange and replace.

Description

Technical Field

[0001] The present invention relates to the field of heat dissipation technology, and in particular to a cooling device for an autonomous driving vehicle controller. Background Art

[0002] With the application of autonomous driving equipment, especially L3 and above autonomous driving equipment, the requirements for chip computing power are getting higher and higher. As the chip computing power increases, the thermal power consumption of the chip is getting higher and higher. Currently, active air cooling or connecting to the vehicle motor cooling circuit for cooling is commonly used to dissipate heat.

[0003] The application number in the existing public technology is: CN202020623923.3. A cooling device for an autonomous driving vehicle controller can meet the heat dissipation requirements of the vehicle controller under low load conditions without a fan through the design of heat dissipation fins and louver structures. At the same time, through the portable installation of fans and the design of heat dissipation fins and louver structures, the fan can be used to increase the heat dissipation to meet the heat dissipation requirements of high-load vehicle controllers.

[0004] However, the above patent still has certain disadvantages when in use: although the overall heat dissipation effect can be improved by adding a fan, the structure of the heat sink used to carry the heat transfer is fixed, and the heat that can be transferred under different loads is very limited, which in turn affects the overall heat dissipation effect. In addition, different heat sinks need to be selected according to the type of fan, but the heat sink is fixedly mounted on the shield, which means that the entire shield needs to be replaced, which not only reduces the convenience of structural replacement, but also increases the overall replacement cost, which is not conducive to better replacement and use by personnel, and the overall use effect is not very ideal.

[0005] To this end, we proposed an autonomous driving vehicle controller cooling device to solve the above-mentioned drawbacks. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings existing in the prior art and propose a cooling device for an autonomous driving vehicle controller.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it includes a controller, a protective cover is provided on the outside of the controller, a circuit main board is provided on the controller, a heat dissipation groove is opened on the top surface of the protective cover, a plurality of groups of limit blocks are evenly welded on the bottom surface of the heat dissipation groove, a plurality of groups of mounting grooves are provided between the limit blocks, heat dissipation silicone grease is applied on the surface of the mounting groove, the surface of the heat dissipation silicone grease is in contact with a heat spreader, a plurality of groups of heat dissipation fins are evenly installed on the surface of the heat spreader, a fan bracket is welded on the top surface of the heat dissipation groove above the heat dissipation fin, and a plurality of groups of heat dissipation fans are threadedly connected to the surface of the fan bracket by bolts.

[0008] Preferably, a plurality of docking joints are symmetrically installed around the bottom of the heat spreader, and a threaded hole is opened in the middle of the surface of the docking joint.

[0009] Preferably, a plurality of groups of holes are symmetrically opened around the surface of the installation groove, and the hole size is the same as the size of the docking joint. A connecting hole is opened inside the hole and passes through one side of the shield. A fastening bolt is arranged inside the connecting hole, and the fastening bolt is threadedly connected to the docking joint.

[0010] Preferably, a plurality of fixing grooves are evenly arranged on the surface of the fan bracket, a plurality of connecting plates are evenly welded around the bottom end of the fixing groove, and threaded holes for bolt threaded connection are arranged on the surface of the connecting plates.

[0011] Preferably, a channel for the wire to pass through is opened through one side of the top of the shield.

[0012] Preferably, the size of the mounting groove is the same as the size of the heat spreader.

[0013] Preferably, a groove for installing the power port is provided at the bottom of one side surface of the shield.

[0014] Preferably, threads are provided on the surface of the fastening bolt.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The present invention adopts heat sinks and heat fans. When working, the structure and number of the heat sinks and the number of heat fans can be flexibly replaced according to different system load conditions, thereby changing the heat dissipation area and the ventilation volume, thereby improving the overall heat dissipation effect, allowing heat to be better transferred and ensuring the use effect of the controller. The heat sinks and the heat fans both adopt a detachable structure, allowing personnel to flexibly adjust them without replacing the entire shield, thereby reducing the overall adjustment cost, improving the adjustment flexibility, and facilitating better use. A heat spreader and heat dissipation silicone grease are provided between the heat sinks and the shield, which can better transfer heat, thereby further improving the overall heat dissipation effect. The present invention has the advantages of good heat dissipation effect and convenient exchange and replacement of the heat dissipation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the structure of a cooling device for an autonomous driving vehicle controller proposed by the present invention;

[0019] Figure 2 A schematic diagram of the structure of a heat sink fin of a cooling device for an autonomous driving vehicle controller proposed by the present invention;

[0020] Figure 3 A schematic diagram of the structure of a fan bracket of a cooling device for an autonomous driving vehicle controller proposed by the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the fastening bolts of the cooling device of the autonomous driving vehicle controller proposed by the present invention.

[0022] Legend:

[0023] 1. Controller; 2. Circuit board; 3. Protective cover; 4. Heat sink; 5. Heat spreader; 6. Heat sink fin; 7. Mounting slot; 8. Connecting plate; 9. Fixing slot; 10. Fan bracket; 11. Cooling fan; 12. Limit block; 13. Connecting hole; 14. Heat dissipation silicone grease; 15. Fastening bolt; 16. Butt joint. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0025] Please refer to Figure 1-4 , including a controller 1, a protective cover 3 is provided on the outside of the controller 1, a circuit board 2 is provided on the controller 1, a heat dissipation groove 4 is opened on the top surface of the protective cover 3, a plurality of groups of limit blocks 12 are evenly welded on the bottom surface of the heat dissipation groove 4, a plurality of groups of mounting grooves 7 are provided between the limit blocks 12, and a heat dissipation silicone grease 14 is applied on the surface of the mounting groove 7, and the surface of the heat dissipation silicone grease 14 is in contact with the heat spreader 5, and a plurality of groups of heat dissipation fins 6 are evenly installed on the surface of the heat spreader 5, a fan bracket 10 is welded on the top surface of the heat dissipation groove 4 above the heat dissipation fin 6, and a plurality of groups of heat dissipation fans 11 are connected to the surface of the fan bracket 10 by bolt threads, and the heat dissipation fin 6 is set to a replaceable structure to avoid that the heat dissipation fin 6 with better heat dissipation performance cannot fully exert its heat dissipation effect under low load conditions, thereby causing waste of its heat dissipation performance and damage to it due to long-term use, which leads to more losses than gains, and neither fully utilizing the heat dissipation performance nor causing loss of the product, making the overall cost performance ratio of use not very ideal.

[0026] In this embodiment: a plurality of groups of butt joints 16 are symmetrically installed around the bottom of the heat spreader 5 , and a threaded hole is opened in the middle of the surface of the butt joint 16 .

[0027] Specifically, the joint 16 is provided to fix the replaced heat sink 6 so that it can be effectively connected to the heat sink 6 to ensure stability in use.

[0028] In this embodiment: a plurality of groups of holes are symmetrically opened around the surface of the mounting groove 7, and the hole size is the same as the size of the docking joint 16, a connecting hole 13 is opened inside the hole through one side of the protective cover 3, a fastening bolt 15 is arranged inside the connecting hole 13, and the fastening bolt 15 is threadedly connected to the docking joint 16.

[0029] Specifically, the fastening bolts 15 are provided to fix the heat dissipating fins 6 so as to ensure stability in use.

[0030] In this embodiment: a plurality of fixing grooves 9 are evenly arranged on the surface of the fan bracket 10, a plurality of connecting plates 8 are evenly welded around the bottom of the fixing grooves 9, and threaded holes for bolt threaded connection are arranged on the surface of the connecting plates 8.

[0031] Specifically, the fan bracket 10 is provided to facilitate the installation and use of the heat dissipation fan 11 .

[0032] In this embodiment: a channel for the wire to pass through is opened through one side of the top of the shield 3.

[0033] Specifically, the channel is provided to facilitate the wires of the heat dissipation fan 11 to pass through and connect to the circuit main board 2 , so as to realize power supply between the fan and the circuit main board 2 of the controller 1 .

[0034] In this embodiment, the size of the mounting groove 7 is the same as the size of the heat spreader 5 .

[0035] Specifically, the size of the installation groove 7 is set to better restrict and fix the heat spreader 5 to avoid misalignment after installation, thereby improving the stability and accuracy of use.

[0036] In this embodiment: a groove for installing the power port is provided at the bottom of one side surface of the shield 3 .

[0037] Specifically, the slot is provided to ensure that the connection between the shield 3 and the controller 1 is tighter.

[0038] In this embodiment, threads are provided on the surface of the fastening bolt 15 .

[0039] Specifically, the thread is provided to achieve a tighter connection with the docking joint 16 and improve stability.

[0040] In this embodiment: the control circuit of controller 1 can be realized by simple programming by those skilled in the art, which is common knowledge in the art. It is only used without modification, so the control method and circuit connection will not be described in detail.

[0041] Working principle: During operation, when the system load is small, the controller 1 dissipates heat through the heat sink 6 on the shield 3, and there is no need to install a heat sink fan 11. When the system load is large, the operation frequency is high, and the heat is high, a heat sink fan 11 can be added. The heat sink fan 11 is fixed to the shield 3 by bolts and a fan bracket 10. At the same time, the heat sink fan 11 and the circuit board 2 of the controller 1 are powered on through the perforations on the shield 3. After the heat sink fan 11 is started, the wind can bring out the heat through the heat sink 6 very well, thereby achieving a rapid cooling effect. Since the heat sink 6 and the heat sink fan 11 both adopt a detachable structure, the structure can be more flexibly modified according to the different heat generated by the load. For example, the number of heat sink fans 11 can be adjusted while the structure and number of the heat sink 6 remain unchanged, so as to increase the ventilation volume and achieve the purpose of rapid air cooling, or the heat sink 11 can be adjusted while the number of heat sink fans 11 remains unchanged. 6, thereby increasing the heat dissipation area and improving the heat dissipation effect, or the number of cooling fans 11, the number of cooling fins 6 and the structure of cooling fins 6 (because the heat dissipation effect of the cooling fins 6 is affected by factors such as their own material, their own width, number of groups and height, cooling fins 6 with different structures can be produced in the production stage, which is convenient for subsequent targeted use and replacement, and the production of cooling fins 6 can be easily implemented in the existing production environment, so no further details are given) are replaced synchronously, so as to better meet the heat dissipation purpose of high heat generation under large load, ensure the safety of vehicle operation and the efficient operation of the system, and improve the overall use effect. Moreover, the setting of the heat spreader 5 and the heat dissipating silicone grease 14 can also make the heat generated by the controller 1 act more fully and evenly on the heat sink, thereby improving the overall heat dissipation effect. The device as a whole has the advantages of good heat dissipation effect, and convenient exchange and replacement of the heat dissipation structure.

[0042] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A cooling device for an autonomous driving vehicle controller, comprising a controller (1), characterized in that: The controller (1) is provided with a protective cover (3) on the outside, and a circuit main board (2) is provided on the controller (1). A heat dissipation groove (4) is provided on the top surface of the protective cover (3). A plurality of groups of limit blocks (12) are uniformly welded on the bottom surface of the heat dissipation groove (4). A plurality of groups of mounting grooves (7) are provided between the limit blocks (12). The surfaces of the mounting grooves (7) are coated with heat dissipation silicone grease (14). The surface of the heat dissipation silicone grease (14) is in contact with the heat spreader (5). A plurality of groups of heat dissipation fins (6) are uniformly installed on the surface of the heat spreader (5). A fan bracket (10) is welded on the top surface of the heat dissipation groove (4) above the heat dissipation fins (6). A plurality of groups of heat dissipation fans (11) are threadedly connected to the surface of the fan bracket (10) by bolts.

2. The automatic driving vehicle controller cooling device according to claim 1, characterized in that: A plurality of groups of docking joints (16) are symmetrically installed around the bottom of the heat diffusion plate (5), and a threaded hole is opened in the middle of the surface of the docking joint (16).

3. The cooling device for an autonomous driving vehicle controller according to claim 1, characterized in that: A plurality of groups of holes are symmetrically formed around the surface of the mounting groove (7), and the hole size is the same as the size of the docking joint (16). A connecting hole (13) is formed inside the hole and passes through one side of the shield (3). A fastening bolt (15) is provided inside the connecting hole (13), and the fastening bolt (15) is threadedly connected to the docking joint (16).

4. The automatic driving vehicle controller cooling device according to claim 1, characterized in that: The fan bracket (10) is provided with a plurality of groups of fixing grooves (9) evenly arranged on its surface, a plurality of groups of connecting plates (8) are evenly welded around the bottom end of the fixing groove (9), and the connecting plates (8) are provided with threaded holes for bolt threaded connection on their surfaces.

5. The automatic driving vehicle controller cooling device according to claim 1, characterized in that: A channel for the wire to pass through is provided through one side of the top of the protective cover (3).

6. The automatic driving vehicle controller cooling device according to claim 1, characterized in that: The size of the installation groove (7) is the same as the size of the heat spreader (5).

7. The automatic driving vehicle controller cooling device according to claim 1, characterized in that: A slot for installing a power port is provided at the bottom of one side surface of the protective cover (3).

8. The automatic driving vehicle controller cooling device according to claim 3, characterized in that: The surface of the fastening bolt (15) is provided with threads.

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