Anti-overheating self-cooling automobile data recorder mainboard

By combining heat-conducting plates and heat dissipation fins with a cooling fan and cooling components, the problem of low heat dissipation efficiency of the dashcam motherboard is solved, enabling rapid heat dissipation of the motherboard, preventing burnout, and extending the service life of the device.

CN223503091UActive Publication Date: 2025-10-31SHENZHEN PULIAN NETWORK TECH CO LTD
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Patent Information

Application Number
CN202422843180.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-10-31
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

Existing dashcam motherboards have low heat dissipation efficiency, leading to excessively high temperatures that may cause the motherboard to burn out and shorten its lifespan.

Method used

The heat is conducted from the motherboard to the heat sink using a heat-conducting plate, and the heat sink fins assist in heat dissipation. The cooling fan and cooling components are activated, and the temperature sensor controls the activation of the cooling fan and cooling components to achieve rapid heat dissipation.

Benefits of technology

Effectively avoids motherboard overheating, extends the lifespan of the dashcam, and prevents motherboard burnout through rapid heat dissipation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223503091U_ABST
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Abstract

The utility model discloses an anti-overheating self-cooling type automobile data recorder mainboard, which belongs to the technical field of automobile data recorders and comprises a board body, a mounting seat is arranged at the top end of the board body, dismounting structures are arranged on two sides of the mounting seat, a mounting groove is formed in one end of the mounting seat, a cooling fan is arranged in an inner cavity of the mounting groove, and the cooling fan is arranged in the inner cavity of the mounting groove. A heat dissipation fan is arranged at one end of the mounting base, heat dissipation fins are arranged at the bottom end of the heat dissipation fan, a heat dissipation base is arranged at the bottom end of the heat dissipation fins, through holes are formed in the surface of the heat dissipation base, a heat conduction sheet is fixedly connected to the bottom end of the heat dissipation base, the lower surface of the heat conduction sheet is attached to the surface of the plate body, and a cooling assembly is arranged at the other end of the mounting base. And a temperature sensor is mounted on the lower surface of the mounting seat, so that the temperature on the surface of the automobile data recorder mainboard is quickly dissipated, the mainboard is prevented from being burnt down due to overheating of the automobile data recorder mainboard, and the service life of the automobile data recorder is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of dashcam technology, specifically to a dashcam motherboard with overheat protection and self-cooling. Background Technology

[0002] A dashcam is a device that records video and audio information while a vehicle is in motion. After installation, a dashcam can record video and audio of the entire driving process, providing evidence in case of traffic accidents.

[0003] Existing dashcams typically dissipate heat generated by the motherboard during operation through ventilation holes on the casing. However, relying solely on ventilation holes is insufficient to quickly dissipate heat from the motherboard surface, causing heat to accumulate. When the temperature becomes too high, this can lead to the motherboard burning out, thus reducing the lifespan of the dashcam.

[0004] According to announcement number CN215068368U, a dashcam motherboard is disclosed, relating to the field of dashcams. It includes a board body, with a controller fixedly mounted on the top side of the board body. Multiple mounting platforms are also fixedly mounted on the top side of the board body. Each mounting platform has a shaft hole on one side, within which a rotating shaft is movably fitted. The same rotating platform is fixedly mounted at both ends of the rotating shaft. In this invention, after the electronic components are installed, they can rotate. When the rotating platform rotates, a damping ball moves from one hemispherical groove to another, thus fixing the damping ball to the hemispherical groove to a certain extent. This provides damping for the rotation of the electronic components and facilitates adjusting the height of the electronic components by adjusting their rotation angle according to the actual space and layout of the motherboard. This avoids the dashcam body becoming too large, obstructing the view, affecting driving safety, and enhancing market competitiveness.

[0005] The dashcam motherboard described above cannot quickly dissipate heat from its surface, causing heat to accumulate. When the temperature is high, this can lead to the motherboard burning out and reducing the lifespan of the dashcam. Therefore, we need to propose a dashcam motherboard that is protected against overheating and has a self-cooling function. Utility Model Content

[0006] The purpose of this invention is to provide an overheat-resistant, self-cooling dashcam motherboard. A heat-conducting sheet absorbs and conducts heat from the motherboard to a heat sink base. Heat sink fins then assist the heat sink base in dissipating heat. Simultaneously, a cooling fan is activated to cool the heat sink fins and heat sink base. A cooling component is incorporated to accelerate the heat dissipation effect of the heat sink fins and heat sink base, improving heat dissipation efficiency. A temperature sensor detects the motherboard temperature; when the temperature reaches a set value, the cooling fan and cooling component are activated to quickly dissipate heat from the surface of the dashcam motherboard, preventing overheating and motherboard burnout, thus extending the lifespan of the dashcam and solving the problems mentioned in the background section.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-cooling, overheat-resistant dashcam motherboard, comprising a board body, a mounting base at the top of the board body, and disassembly / removal structures on both sides of the mounting base for easy assembly and disassembly of the dashcam motherboard. One end of the mounting base has a mounting groove, the inner cavity of which is equipped with a cooling fan. The bottom end of the cooling fan has heat dissipation fins, and the bottom end of the heat dissipation fins has a heat dissipation base. The surface of the heat dissipation base has through holes, and a heat-conducting sheet is fixedly connected to the bottom end of the heat dissipation base. The lower surface of the heat-conducting sheet is in contact with the surface of the board body. The other end of the mounting base has a cooling assembly for cooling the heat dissipation fins, and a temperature sensor is mounted on the lower surface of the mounting base.

[0008] Preferably, the disassembly and assembly structure includes an elastic connecting plate, which is fixedly connected to the side wall of the mounting base. The surface of the elastic connecting plate has a through hole, and a locking block is fixedly connected to the side wall of the plate. The locking block engages with the inner cavity of the through hole of the elastic connecting plate.

[0009] Preferably, the elastic connecting plate is provided in four sets, and the four sets of elastic connecting plates are symmetrically distributed around the mounting base.

[0010] Preferably, a support column is fixedly connected to the bottom end of the mounting base, and a slot is provided on the upper surface of the plate, wherein the support column and the inner cavity of the slot are engaged and locked together.

[0011] Preferably, the support columns are provided in four sets, and the four sets of support columns are symmetrically distributed around the mounting base.

[0012] Preferably, the cooling assembly includes a water tank, which is fixedly connected to the bottom of the mounting base. A miniature water pump is bolted to the bottom of the water tank. The inlet of the miniature water pump is connected to an inlet pipe, and the other end of the inlet pipe is connected to the inner cavity of the water tank. A T-junction is provided at the outlet of the miniature water pump. One end of the T-junction is connected to a main heat exchange pipe. One end of the main heat exchange pipe passes through a through hole in the heat dissipation base and is connected to a main return pipe. The other end of the main return pipe passes through a through hole in the heat dissipation base and is connected to a pipe in the inner cavity of the water tank. The other end of the T-junction is connected to a secondary heat exchange pipe. The other end of the secondary heat exchange pipe passes through the inner cavity of the heat dissipation fins and is provided with a secondary return pipe. The other end of the secondary return pipe is connected to the inner cavity of the water tank.

[0013] Preferably, the surface of the water tank has a groove, and an acrylic plate is installed in the inner cavity of the groove. The acrylic plate is transparent.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model provides an overheat-resistant, self-cooling dash cam motherboard. A heat-conducting sheet absorbs and conducts heat to a heat sink base, which then uses heat sink fins to assist in heat dissipation. Simultaneously, a cooling fan is activated to cool the heat sink fins and heat sink base. A cooling component is incorporated to accelerate heat dissipation and improve efficiency. A temperature sensor detects the motherboard temperature; when the temperature reaches a set value, the cooling fan and cooling component activate, rapidly dissipating heat from the dash cam motherboard surface. This prevents overheating and motherboard burnout, extending the dash cam's lifespan.

[0016] 2. This utility model provides an overheat-proof self-cooling dash cam motherboard. The disassembly structure facilitates quick disassembly and assembly between the mounting base and the dash cam motherboard, and makes it convenient to maintain the cooling components and heat dissipation mechanism on the mounting base.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the plate and mounting base after disassembly.

[0020] Figure 3 This is a schematic diagram of the structure of the cooling fan, cooling fins, cooling base, and cooling components of this utility model;

[0021] Figure 4 This is an exploded structural diagram of the cooling fan, cooling fins, cooling base, and heat-conducting plate of this utility model;

[0022] Figure 5 This is a structural schematic diagram of the cooling component of this utility model.

[0023] In the diagram: 1. Plate; 2. Mounting base; 3. Disassembly and assembly structure; 31. Flexible connecting plate; 32. Clip; 4. Mounting slot; 5. Cooling fan; 6. Heat dissipation fins; 7. Heat dissipation base; 8. Heat conduction plate; 9. Cooling assembly; 91. Water tank; 92. Miniature water pump; 93. Water inlet pipe; 94. T-connector; 95. Main heat exchanger pipe; 96. Main return pipe; 97. Secondary heat exchanger pipe; 98. Secondary return pipe; 10. Temperature sensor; 11. Support column; 12. Slot; 13. Acrylic plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution: an overheat-resistant self-cooling car dash cam motherboard, including a board body 1, a mounting base 2 at the top of the board body 1, and disassembly and assembly structures 3 on both sides of the mounting base 2 for easy disassembly and assembly with the car dash cam motherboard. One end of the mounting base 2 is provided with a mounting groove 4, a cooling fan 5 is provided in the inner cavity of the mounting groove 4, a heat dissipation fin 6 is provided at the bottom of the cooling fan 5, a heat dissipation base 7 is provided at the bottom of the heat dissipation fin 6, a through hole is provided on the surface of the heat dissipation base 7, a heat conduction plate 8 is fixedly connected to the bottom of the heat dissipation base 7, the lower surface of the heat conduction plate 8 is in contact with the surface of the board body 1, a cooling component 9 for cooling the heat dissipation fin 6 is provided at the other end of the mounting base 2, and a temperature sensor 10 is installed on the lower surface of the mounting base 2.

[0026] When the dashcam motherboard is working, it transfers heat to the heat-conducting plate 8. The heat is then dissipated by the heat sink 7, which in turn dissipates the heat through the heat sink base 7. The heat sink base 7 also provides auxiliary heat dissipation through the heat sink fins 6 at its top. The temperature sensor 10 senses the temperature of the dashcam motherboard. When the temperature of the dashcam motherboard reaches a set value, the cooling fan 5 and the cooling component 9 are activated to dissipate heat from the heat sink fins 6 and the heat sink base 7, improving the heat dissipation effect on the motherboard. This rapidly dissipates the temperature of the dashcam motherboard surface, preventing overheating and burnout, and extending the lifespan of the dashcam.

[0027] The disassembly and assembly structure 3 includes an elastic connecting plate 31, which is fixedly connected to the side wall of the mounting base 2. The surface of the elastic connecting plate 31 has a through hole, and a locking block 32 is fixedly connected to the side wall of the plate body 1. The locking block 32 engages with the inner cavity of the through hole of the elastic connecting plate 31. Through the engagement of the elastic connecting plate 31 and the locking block 32, the locking block 32 moves into the inner cavity of the through hole of the elastic connecting plate 31, which can fix the mounting base 2 on the main board of the dashcam. By moving the elastic connecting plate 31, the locking block 32 is moved out of the inner cavity of the through hole of the elastic connecting plate 31, releasing the mounting base 2 and allowing it to be disassembled.

[0028] Four sets of elastic connecting plates 31 are provided, and the four sets of elastic connecting plates 31 are symmetrically distributed around the mounting base 2. By setting the number of elastic connecting plates 31, the mounting base 2 can be supported around its perimeter, thereby improving the stability of the mounting base 2 after it is connected to the dashcam motherboard.

[0029] The bottom of the mounting base 2 is fixedly connected to a support column 11, and the upper surface of the plate 1 is provided with a slot 12. The support column 11 and the inner cavity of the slot 12 are engaged and locked. The support column 11 supports the bottom of the mounting base 2, thereby positioning the mounting base 2 on the main board of the dash cam and improving the stability of the mounting base 2 on the main board of the dash cam.

[0030] There are four sets of support columns 11, which are symmetrically distributed around the mounting base 2. The support columns 11 provide support for the bottom of the mounting base 2, thereby improving the stability of the mounting base 2 after it is connected to the dashcam motherboard.

[0031] The cooling assembly 9 includes a water tank 91, which is fixedly connected to the bottom of the mounting base 2. A miniature water pump 92 is bolted to the bottom of the water tank 91. The inlet of the miniature water pump 92 is connected to an inlet pipe 93, and the other end of the inlet pipe 93 is connected to the inner cavity of the water tank 91. The outlet of the miniature water pump 92 is provided with a T-shaped pipe 94. One end of the T-shaped pipe 94 is connected to a main heat exchange pipe 95. One end of the main heat exchange pipe 95 passes through the through hole of the heat dissipation base 7 and is connected to a main return pipe 96. The other end of the main return pipe 96 passes through the through hole of the heat dissipation base 7 and is connected to the inner cavity of the water tank 91. The other end of the three-way pipe 94 is connected to the auxiliary heat exchange pipe 97. The other end of the auxiliary heat exchange pipe 97 passes through the inner cavity of the heat dissipation fin 6 and is equipped with an auxiliary return pipe 98. The other end of the auxiliary return pipe 98 is connected to the inner cavity of the water tank 91. The micro water pump 92 is started to draw coolant through the inlet pipe 93, and then the coolant is sent into the main heat exchange pipe 95 and the auxiliary heat exchange pipe 97 through the three-way pipe 94. The cooling water flows in the heat dissipation fin 6 and the heat dissipation base 7 to assist in heat dissipation. Then it flows into the water tank 91 through the return pipe to realize the cooling work of the heat dissipation fin 6 and the heat dissipation base 7.

[0032] The surface of the water tank 91 has a slot, and an acrylic plate 13 is installed in the inner cavity of the slot. The acrylic plate 13 is transparent, and the height of the coolant in the water tank 91 can be observed from the outside through the acrylic plate 13, so as to avoid the coolant level being too low.

[0033] In practical use: The temperature sensor 10 senses the temperature of the dashcam motherboard during operation. When the temperature of the dashcam motherboard reaches the set temperature standard, the cooling fan 5 and the micro water pump 92 are activated, transferring the temperature on the dashcam motherboard to the heat-conducting fins 8. The heat dissipation base 7 absorbs and dissipates the temperature on the heat-conducting fins 8, while the heat dissipation fins 6 disperse the heat dissipation on the heat dissipation base 7. The top cooling fan 5 blows air onto the heat dissipation fins 6 to increase the cooling speed. The micro water pump 92 at the other end draws coolant through the inlet pipe 93, and then sends the coolant into the main heat exchange pipe 95 and the auxiliary heat exchange pipe 97 through the three-way pipe 94. The coolant flows in the heat dissipation fins 6 and the heat dissipation base 7 for auxiliary cooling, and then flows into the water tank 91 through the return pipe to assist in cooling the heat dissipation base 7 and the heat dissipation fins 6. This quickly dissipates the temperature on the surface of the dashcam motherboard, preventing the motherboard from burning out due to overheating and extending the service life of the dashcam.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cooling overheating-resistant vehicle recorder motherboard, comprising a board body (1), characterized in that: The top of the plate (1) is provided with a mounting base (2). The mounting base (2) is provided with disassembly and assembly structures (3) on both sides for easy disassembly and assembly with the dashcam motherboard. One end of the mounting base (2) is provided with a mounting groove (4). The inner cavity of the mounting groove (4) is provided with a cooling fan (5). The bottom end of the cooling fan (5) is provided with a heat dissipation fin (6). The bottom end of the heat dissipation fin (6) is provided with a heat dissipation base (7). The surface of the heat dissipation base (7) is provided with a through hole. The bottom end of the heat dissipation base (7) is fixedly connected with a heat-conducting plate (8). The lower surface of the heat-conducting plate (8) is in contact with the surface of the plate (1). The other end of the mounting base (2) is provided with a cooling component (9) for cooling the heat dissipation fin (6). The lower surface of the mounting base (2) is provided with a temperature sensor (10).

2. The overheat-resistant self-cooling dashcam motherboard according to claim 1, characterized in that: The disassembly and assembly structure (3) includes an elastic connecting plate (31), which is fixedly connected to the side wall of the mounting base (2). The surface of the elastic connecting plate (31) is provided with a through hole, and a locking block (32) is fixedly connected to the side wall of the plate body (1). The locking block (32) engages with the inner cavity of the through hole of the elastic connecting plate (31).

3. The overheat-resistant self-cooling dashcam motherboard according to claim 2, characterized in that: The elastic connecting plate (31) is provided in four sets, and the four sets of elastic connecting plates (31) are symmetrically distributed around the mounting base (2).

4. The overheat-resistant self-cooling dashcam motherboard according to claim 1, characterized in that: The bottom end of the mounting base (2) is fixedly connected to a support column (11), and the upper surface of the plate (1) is provided with a slot (12), and the support column (11) and the inner cavity of the slot (12) are engaged.

5. The overheat-resistant self-cooling dashcam motherboard according to claim 4, characterized in that: The support columns (11) are provided in four sets, and the four sets of support columns (11) are symmetrically distributed around the mounting base (2).

6. The overheat-resistant self-cooling dashcam motherboard according to claim 1, characterized in that: The cooling assembly (9) includes a water tank (91), which is fixedly connected to the bottom of the mounting base (2). A miniature water pump (92) is bolted to the bottom of the water tank (91). The inlet of the miniature water pump (92) is connected to an inlet pipe (93), and the other end of the inlet pipe (93) is connected to the inner cavity of the water tank (91). A three-way pipe (94) is provided at the outlet of the miniature water pump (92), and one end of the three-way pipe (94) is connected to a main heat exchange pipe (95). One end of the main heat exchange tube (95) passes through the through hole of the heat dissipation base (7) and is connected to the main return pipe (96). The other end of the main return pipe (96) passes through the through hole of the heat dissipation base (7) and is connected to the inner cavity of the water tank (91). The other end of the three-way pipe (94) is connected to the auxiliary heat exchange tube (97). The other end of the auxiliary heat exchange tube (97) passes through the inner cavity of the heat dissipation fins (6) and is provided with a auxiliary return pipe (98). The other end of the auxiliary return pipe (98) is connected to the inner cavity of the water tank (91).

7. The overheat-resistant self-cooling dashcam motherboard according to claim 6, characterized in that: The surface of the water tank (91) is provided with a groove, and an acrylic plate (13) is installed in the inner cavity of the groove. The acrylic plate (13) is transparent.

Citation Information

Patent Citations

  • Mainboard of automobile data recorder

    CN215068368U