Automotive LED lamp surface-mounted circuit board
By introducing shock absorbers, buffer mechanisms, and anti-vibration layers into the mounting circuit boards of automotive LED lights, and combining them with heat-conducting plates and heat dissipation fins, the problems of circuit board anti-vibration and heat dissipation are solved, ensuring the normal operation of LED lights and extending their service life.
Patent Information
- Application Number
- CN202520414150.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing automotive LED light mounting circuit boards have poor shock resistance, which can easily lead to loose electronic components and poor heat dissipation, affecting the normal operation and lifespan of the LED lights.
The circuit board employs shock absorbers, buffer mechanisms, and anti-vibration layers, combined with a heat-conducting plate and heat dissipation fins design, to enhance its anti-vibration performance and heat dissipation effect.
It effectively prevents the electronic components inside the circuit board from loosening, reduces the operating temperature of the LED lamp, and improves luminous efficiency and lifespan.
Smart Images

Figure CN223978909U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive circuit board technology, and in particular to an automotive LED light mounting circuit board. Background Technology
[0002] With the continuous development of the automotive industry, automotive LED lights have been widely used in the field of automotive lighting due to their advantages such as high brightness, low energy consumption, and long lifespan. However, the normal operation of LED lights relies on the support of surface mount circuit boards, and existing automotive LED light surface mount circuit boards have some shortcomings in practical use.
[0003] On the one hand, because cars generate significant vibrations during driving, existing circuit boards have poor shock resistance, which can easily lead to loose connections of electronic components inside the circuit board, or even solder joints falling off, thus affecting the normal operation of LED lights.
[0004] On the other hand, automotive LED lights generate a lot of heat when they are working. Existing circuit boards have poor heat dissipation, which leads to excessively high LED temperatures. This not only reduces the luminous efficiency of the LED lights but also shortens their lifespan. Therefore, a mounting circuit board for automotive LED lights is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a mounting circuit board for automotive LED lights to solve the problems mentioned in the background art.
[0006] This application provides a surface-mount circuit board for automotive LED lights, which employs the following technical solution:
[0007] A mounting circuit board for automotive LED lights includes a mounting plate and a circuit board body. A connecting plate is fixedly mounted on the outer wall of the mounting plate by multiple shock absorbers. The circuit board body is mounted on the outer wall of the connecting plate by multiple screws. A buffer mechanism is installed between the mounting plate and the connecting plate.
[0008] The buffer mechanism includes multiple guide rails fixedly connected to the outer wall of the mounting plate. Two sliders are slidably connected to the outer wall of the guide rails. A first bearing is fixedly connected to the outer wall of the two sliders. A connecting rod is rotatably connected to the outer wall of the first bearing. The end of the connecting rod away from the first bearing is hinged to the outer wall of the connecting plate through a second bearing.
[0009] The buffer mechanism also includes damping rods and buffer springs. Multiple damping rods are fixedly installed on the outer wall of the mounting plate by multiple fixing plates. The end of the damping rod away from the fixing plate is fixedly installed on the outer wall of the first bearing seat, and the buffer spring is sleeved on the outer wall of the damping rod.
[0010] Preferably, one end of the buffer spring is fixedly connected to the outer wall of the fixed plate, and the other end is fixedly connected to the outer wall of the first bearing.
[0011] Preferably, an anti-vibration layer is provided between the connecting plate and the circuit board body, and the anti-vibration layer is made of elastic rubber material.
[0012] Preferably, a heat-conducting plate is fixedly connected to the outer wall of the connecting plate. The heat-conducting plate is attached to the circuit board body and embedded inside the shock-resistant layer. Multiple heat dissipation fins are fixedly connected to the outer wall of the heat-conducting plate facing the connecting plate, and the multiple heat dissipation fins penetrate the connecting plate.
[0013] Preferably, the outer wall of the mounting plate is fixedly connected with a plurality of mounting holes, which are evenly distributed at the four corner edges of the mounting plate.
[0014] In summary, this application includes the following beneficial technical effects:
[0015] 1. By incorporating shock absorbers, buffer mechanisms, and anti-vibration layers, the shock resistance of the circuit board is effectively improved, preventing loose connections of internal electronic components and ensuring the normal operation of the LED lights;
[0016] 2. Through the design of the heat-conducting plate and multiple heat dissipation fins, the heat generated by the circuit board body during operation can be quickly dissipated, reducing the operating temperature of the LED lamp and improving the luminous efficiency and lifespan of the LED lamp. Attached Figure Description
[0017] Figure 1 This is an overall schematic diagram of an embodiment of the application;
[0018] Figure 2 This is a schematic diagram of the first part of the embodiment of the application;
[0019] Figure 3 This is a schematic diagram of the second part of the embodiment of the application;
[0020] Figure 4 This is a side sectional view of the connecting plate in the embodiment of the application;
[0021] Figure 5 yes Figure 4 Enlarged view of the structure at point A in the middle.
[0022] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 2. Connecting plate; 3. Anti-vibration layer; 4. Circuit board body; 5. Heat-conducting plate; 6. Heat dissipation fins; 7. Shock absorber; 8. Guide rail; 9. Slider; 10. First shaft seat; 11. Connecting rod; 12. Second shaft seat; 13. Fixing plate; 14. Damping rod; 15. Buffer spring; 16. Mounting hole. Detailed Implementation
[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0024] This application discloses a mounting circuit board for automotive LED lights. (See also...) Figure 1-5 A mounting circuit board for automotive LED lights includes a mounting plate 1 and a circuit board body 4. A connecting plate 2 is fixedly mounted on the outer wall of the mounting plate 1 by multiple shock absorbers 7. The circuit board body 4 is mounted on the outer wall of the connecting plate 2 by multiple screws. A buffer mechanism is installed between the mounting plate 1 and the connecting plate 2.
[0025] The buffer mechanism includes multiple guide rails 8 fixedly connected to the outer wall of the mounting plate 1. Two sliders 9 are slidably connected to the outer wall of the guide rails 8. A first bearing 10 is fixedly connected to the outer wall of the two sliders 9. A connecting rod 11 is rotatably connected to the outer wall of the first bearing 10. The end of the connecting rod 11 away from the first bearing 10 is hinged to the outer wall of the connecting plate 2 through a second bearing 12.
[0026] The buffer mechanism also includes damping rods 14 and buffer springs 15. Multiple damping rods 14 are fixedly installed on the outer wall of the mounting plate 1 by multiple fixing plates 13. The end of the damping rod 14 away from the fixing plate 13 is fixedly installed on the outer wall of the first bearing seat 10, and the buffer spring 15 is sleeved on the outer wall of the damping rod 14.
[0027] One end of the buffer spring 15 is fixedly connected to the outer wall of the fixed plate 13, and the other end is fixedly connected to the outer wall of the first bearing 10.
[0028] An anti-vibration layer 3 is provided between the connecting plate 2 and the circuit board body 4. The anti-vibration layer 3 is made of elastic rubber material.
[0029] A heat-conducting plate 5 is fixedly connected to the outer wall of the connecting plate 2. The heat-conducting plate 5 is attached to the circuit board body 4 and embedded inside the shock-resistant layer 3. Multiple heat dissipation fins 6 are fixedly connected to the outer wall of the heat-conducting plate 5 facing the connecting plate 2. The multiple heat dissipation fins 6 penetrate the connecting plate 2.
[0030] The outer wall of the mounting plate 1 is fixedly connected with multiple mounting holes 16, which are evenly distributed at the four corner edges of the mounting plate 1.
[0031] The implementation principle of the automotive LED light mounting circuit board in this application embodiment is as follows: In use, the mounting plate 1 is fixed in a suitable position by screws through the mounting holes 16. When the car is driving, the buffer mechanism and the shock-absorbing layer 3 work together to buffer the vibration generated during the car's driving. When the vibration is transmitted to the circuit board body 4, the circuit board body 4 is displaced up and down, thereby squeezing or pulling multiple connecting rods 11. The multiple connecting rods 11 then drive the slider 9 to slide on the guide rail 8 through the first shaft seat 10. At this time, the first shaft seat 10 triggers the damping rod 14 and the buffer spring 15. The buffer spring 15 can absorb the impact force and play a buffering role. The multiple buffer springs 15 and multiple shock absorbers 7 are used to absorb and attenuate the impact force, preventing the multiple buffer springs 15 from repeatedly elastically jumping after absorbing the impact force. The shock absorbers 7 and the buffer springs 15 can convert the impact force into heat energy to offset the impact force generated by the vibration, protect the connection between the LED light and the circuit board, and the shock-absorbing layer 3 can prevent the circuit board body 4 from having a rigid collision with the connecting plate 2, further playing a buffering and protective role.
[0032] The heat generated by the LED lights mounted on the circuit board body 4 is quickly transferred to multiple heat dissipation fins 6 through the heat conduction plate 5. The multiple heat dissipation fins 6 increase the heat dissipation area, accelerate the heat dissipation, reduce the operating temperature of the LED lights, and improve the luminous efficiency and lifespan of the LED lights.
[0033] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0034] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A LED lamp mounting circuit board for vehicle, comprising a mounting plate (1) and a circuit board body (4), characterized in that: The outer wall of the mounting plate (1) is fixedly provided with a connecting plate (2) through a plurality of shock absorbers (7), the circuit board body (4) is installed on the outer wall of the connecting plate (2) through a plurality of screws, and a buffering mechanism is installed between the mounting plate (1) and the connecting plate (2); The buffering mechanism comprises a plurality of guide rails (8) fixedly connected to the outer wall of the mounting plate (1), the outer wall of the guide rail (8) is slidably connected with two sliding blocks (9), the outer wall of the two sliding blocks (9) is fixedly connected with a first shaft seat (10), the outer wall of the first shaft seat (10) is rotatably connected with a connecting rod (11), and the end of the connecting rod (11) away from the first shaft seat (10) is hingedly connected with the outer wall of the connecting plate (2) through a second shaft seat (12). The buffering mechanism further comprises a damping rod (14) and a buffer spring (15), a plurality of the damping rods (14) are fixedly installed on the outer wall of the mounting plate (1) through a plurality of fixed plates (13), one end of the damping rod (14) away from the fixed plate (13) is fixedly installed on the outer wall of the first shaft seat (10), and the buffer spring (15) is sleeved on the outer wall of the damping rod (14).
2. The LED lamp mounting circuit board for vehicles according to claim 1, characterized in that: One end of the buffer spring (15) is fixedly connected to the outer wall of the fixed plate (13), and the other end is fixedly connected to the outer wall of the first shaft seat (10).
3. The LED lamp mounting circuit board for vehicles according to claim 1, characterized in that: An anti-shock layer (3) is arranged between the connecting plate (2) and the circuit board body (4), and the anti-shock layer (3) is made of elastic rubber material.
4. The LED lamp mounting circuit board for vehicles according to claim 3, characterized in that: The outer wall of the connecting plate (2) is fixedly connected with a heat-conducting plate (5), the heat-conducting plate (5) is attached to the circuit board body (4) and embedded in the anti-shock layer (3), a plurality of heat dissipation fins (6) are fixedly connected to the outer wall of one side of the heat-conducting plate (5) facing the connecting plate (2), and the plurality of heat dissipation fins (6) penetrate the connecting plate (2).
5. The LED lamp mounting circuit board for vehicles according to claim 1, characterized in that: The outer wall of the mounting plate (1) is fixedly connected with a plurality of mounting holes (16), and the plurality of mounting holes (16) are uniformly distributed at the edge positions of the four corners of the mounting plate (1).