Automobile LED lighting device with heat pipe reinforced heat dissipation

Abstract

The utility model relates to heat pipe heat dissipation technical field, concretely is the automobile LED lighting device of heat pipe reinforced heat dissipation, including mounting seat, the upper surface fixed mounting of mounting seat has LED lighting lamp, the lower surface fixed mounting of mounting seat has heat pipe heat dissipation mechanism, and heat pipe heat dissipation mechanism includes connecting mechanism, the heat dissipation pipe of a plurality of fixed connections in the left and right two sides surfaces of connecting mechanism and the heat dissipation fin of a plurality of installations in heat dissipation pipe outer surface, and connecting mechanism includes lower connecting box, the two fixed sheets of welding in lower connecting box outer end front and back two sides surface middle position upper end and the upper connecting box of sliding connection in lower connecting box inside. The utility model discloses heat pipe heat dissipation mechanism is set up in the lower side of mounting seat, and the heat generated in the process of LED lighting lamp lighting is effectively radiated, prevents the heat accumulation around LED lighting lamp to cause LED lighting lamp failure, and the connecting mechanism of heat pipe heat dissipation mechanism sticking the lower surface of LED lighting lamp uses the lifting mechanism, can the elastic sticking of LED lighting lamp's rear cover, improves the heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of heat pipe heat dissipation technology, specifically to an automotive LED lighting device with enhanced heat pipe heat dissipation. Background Technology

[0002] LED automotive lights refer to lights that use LED technology for both internal and external illumination. External lighting equipment involves thermal limits and EMC issues, as well as many complex standards for unloaded load testing. LED automotive lights can be widely used to create the in-car environment, with a lifespan of 50,000 hours. LEDs have a robust structure, are not easily affected by vibration, and their light output brightness does not significantly decrease during use. LED automotive lights are suitable for various automotive electronic lighting applications, including headlights (high and low beams), fog lights, taillights, brake lights, turn signals, daytime running lights, pedal lights, instrument lights, license plate lights, door lights, interior lighting, side marker lights, navigation, entertainment systems, backlights, and indicator lights.

[0003] Utility model patent CN211232729U discloses an LED lighting device for automobiles. This utility model includes a mounting plate, a lamp body, and a protective cover. The right side of the lamp body is fixedly connected to the left side of the mounting plate, and the right side of the protective cover is movably connected to the left side of the mounting plate. The right side of the protective cover includes a fixing plate, a locking plate, and a locking block. When this LED lighting device for automobiles is subjected to an external impact, the protective cover protects the surface of the lamp body. The right side of the protective cover pushes the fixing plate and fixing ring to the right, causing the movable plate to move to the right. The right side of the movable plate pushes the movable tube to the right on the surface of the fixing rod, causing the elastic compression piece to contract to the right. The elastic force of the elastic compression piece buffers the right side of the movable tube, thereby buffering the entire right side of the protective cover and reducing the impact force on the protective cover during a collision.

[0004] While the aforementioned utility model can protect the LED light with a protective cover, the heat generated during LED lighting cannot be easily dissipated due to the cover's design. Therefore, we propose a heat pipe-enhanced heat dissipation automotive LED lighting device. Utility Model Content

[0005] This invention provides an automotive LED lighting device with enhanced heat dissipation via heat pipes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A heat pipe enhanced heat dissipation automotive LED lighting device includes a mounting base, an LED lighting lamp fixedly mounted on the upper surface of the mounting base, and a heat pipe heat dissipation mechanism fixedly mounted on the lower surface of the mounting base. The heat pipe heat dissipation mechanism includes a connecting mechanism, a plurality of heat dissipation pipes fixedly connected to the left and right sides of the connecting mechanism, and a plurality of heat dissipation fins mounted on the outer surface of the heat dissipation pipes. The connecting mechanism includes a lower connecting box, two fixing plates welded to the upper end of the middle position of the front and rear surfaces of the outer end of the lower connecting box, and an upper connecting box slidably connected inside the lower connecting box. A spring mechanism is welded between the middle position of the lower surface of the upper connecting box and the middle position of the upper surface of the lower connecting box. Two heat dissipation channels are welded between the front and rear inner sidewalls of the lower connecting box. Each heat dissipation channel has a heat-conducting plate on its left and right sides. Limiting plates are welded to the lower ends of the two heat-conducting plates on the left and right sides of the same heat dissipation channel. The upper end of each heat-conducting plate is welded to the upper surface inside the upper connecting box.

[0007] As a preferred technical solution, the heat dissipation channel is a square pipe, with both ends of the heat dissipation channel connected to the heat dissipation pipe, and the heat-conducting plate in contact with the heat dissipation channel near it.

[0008] This design, with its square pipe structure for heat dissipation, provides a larger contact area when in contact with the heat-conducting plate compared to a circular pipe, which helps the heat-conducting plate to transfer heat more fully into the heat dissipation channel. In addition, the square structure is easy to arrange in a limited space and can be adapted to the overall structural design of the device.

[0009] As a preferred technical solution, the spring mechanism, fixing plate, lower connecting box and upper connecting box are all made of pure aluminum material, and are covered with a layer of high thermal conductivity ceramic material composed of aluminum nitride.

[0010] This design utilizes pure aluminum, which has excellent thermal conductivity and can quickly conduct heat. At the same time, its low density allows for a reduction in the overall weight of the device while ensuring the structural strength of the components. This aligns with the development needs of lightweight automotive parts and reduces energy consumption during vehicle operation.

[0011] As a preferred technical solution, the spring mechanism includes a fixed sleeve welded to the middle position of the upper surface inside the lower connecting box and a fixed rod welded to the lower surface inside the upper connecting box. An auxiliary piece is welded to the top of the outer surface of the fixed rod, and a spring is welded between the auxiliary piece and the fixed sleeve.

[0012] This feature, with its split-structure design of the spring mechanism (fixed sleeve, fixed rod, and auxiliary plate), allows for more precise installation and positioning of the spring, preventing it from shifting or wobbling during operation. This ensures the spring can stably perform its buffering function and improves the structural stability of the connecting mechanism.

[0013] As a preferred technical solution, the fixing rod is slidably connected inside the fixing sleeve, and the spring is in a compressed state when no external force is applied.

[0014] This feature, with the sliding connection between the fixing rod and the fixing sleeve, provides guidance for the relative movement between the upper and lower connecting boxes, ensuring that both can move in a fixed direction when subjected to vibration or external force, avoiding deviation or jamming, and ensuring the flexibility and stability of the connecting mechanism.

[0015] As a preferred technical solution, the lower surface of the mounting base is provided with a mounting groove that penetrates the mounting base, and fixing grooves are provided on the lower middle of the left and right sides of the mounting groove.

[0016] This feature provides dedicated space for the installation of the heat pipe cooling mechanism, facilitating its positioning and assembly and preventing it from moving freely on the underside of the mounting base.

[0017] As a preferred technical solution, the upper surface of the fixing groove is provided with a threaded hole, and the upper surface of the fixing plate is provided with a through hole. The through hole and the threaded hole are positioned correspondingly, and the fixing plate is installed in the fixing groove by fixing bolts.

[0018] This design, with the through hole and threaded hole aligned, provides precise guidance for the installation of the fixing bolts, preventing bolt misalignment during installation and ensuring an efficient and convenient installation process. It also ensures uniform force distribution on the fixing plate, reduces localized stress concentration caused by installation deviations, and extends the service life of the fixing plate and mounting base.

[0019] As a preferred technical solution, the upper connecting box passes through the mounting groove and fits tightly against the lower surface of the LED lighting lamp, and the top view dimensions of the lower connecting box are consistent with those of the mounting groove.

[0020] This setting ensures that the dimensions of the lower connector box in its top view are consistent with the mounting slot, allowing the lower connector box to fit perfectly within the mounting slot. This prevents the lower connector box from shaking or shifting within the mounting slot, improving the compactness and stability of the heat pipe cooling mechanism and the mounting base assembly.

[0021] Compared with the prior art, the beneficial effects of this utility model are: 1. By installing a heat pipe cooling mechanism on the underside of the mounting base, the heat generated during the LED lighting process can be effectively dissipated, preventing heat buildup around the LED lighting from causing LED lighting malfunctions.

[0022] 2. The heat pipe cooling mechanism is connected to the lower surface of the LED light using a liftable mechanism, which has a certain lifting space and can flexibly fit the back cover of the LED light to improve the heat dissipation effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the mounting base in this utility model; Figure 3 This is a schematic diagram of the heat pipe heat dissipation mechanism in this utility model; Figure 4 This is a schematic diagram of the connecting mechanism in this utility model; Figure 5 This is a schematic diagram of the spring mechanism in this utility model; The meanings of the labels in the diagram are as follows: 100. Mounting base; 110. Mounting slot; 120. Fixing slot; 200. LED lighting lamp; 300. Heat pipe heat dissipation mechanism; 310. Connecting mechanism; 311. Lower connecting box; 312. Upper connecting box; 313. Fixing plate; 314. Heat conduction plate; 315. Heat dissipation channel; 316. Limiting plate; 317. Spring mechanism; 3171. Fixing rod; 3172. Fixing sleeve; 3173. Spring; 3174. Auxiliary plate; 320. Heat dissipation pipe; 330. Heat sink. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 Figures 1-5 This embodiment provides a technical solution: A heat pipe-enhanced heat dissipation automotive LED lighting device includes a mounting base 100. An LED lighting lamp 200 is fixedly mounted on the upper surface of the mounting base 100, and a heat pipe heat dissipation mechanism 300 is fixedly mounted on the lower surface of the mounting base 100. The heat pipe heat dissipation mechanism 300 includes a connecting mechanism 310, several heat dissipation pipes 320 fixedly connected to the left and right sides of the connecting mechanism 310, and several heat dissipation fins 330 mounted on the outer surface of the heat dissipation pipes 320. The connecting mechanism 310 includes a lower connecting box 311, two fixing pieces 313 welded to the upper part of the middle position of the front and rear sides of the outer end of the lower connecting box 311, and an upper connecting box 312 slidably connected inside the lower connecting box 311. A spring mechanism 317 is welded between the middle position of the surface and the middle position of the upper surface of the lower connecting box 311. Two heat dissipation channels 315 are welded between the front and rear inner sidewalls of the lower connecting box 311. Each heat dissipation channel 315 has a heat-conducting plate 314 on both sides. The lower ends of the two heat-conducting plates 314 on both sides of the same heat dissipation channel 315 are welded with limit plates 316. The upper end of each heat-conducting plate 314 is welded to the upper surface inside the upper connecting box 312. Through the above mechanism, during the use of the LED lighting lamp 200, the heat generated during its operation can be conducted and dissipated through the heat pipe heat dissipation mechanism 300, preventing heat accumulation that could cause the LED lighting lamp 200 to malfunction.

[0026] It should be added that the heat pipe 320 is a vacuum-sealed heat pipe structure, and has a working fluid and a liquid wick inside.

[0027] Furthermore, such as Figure 4 As shown, the heat dissipation channel 315 is a square pipe, and both ends of the heat dissipation channel 315 are connected to the heat dissipation pipe 320. The heat conduction plate 314 is in contact with the heat dissipation channel 315 nearby. The square heat dissipation channel 315 can have more contact area with the heat conduction plate 314, thereby increasing the heat conduction efficiency.

[0028] Furthermore, such as Figure 5 As shown, the spring mechanism 317, the fixing plate 313, the lower connecting box 311 and the upper connecting box 312 are all made of pure aluminum material, and are covered with a layer of high thermal conductivity ceramic material composed of aluminum nitride, which can achieve insulation between the material and the outside world.

[0029] In this embodiment, as Figure 5As shown, the spring mechanism 317 includes a fixed sleeve 3172 welded to the middle of the upper surface inside the lower connecting box 311 and a fixed rod 3171 welded to the lower surface inside the upper connecting box 312. An auxiliary piece 3174 is welded to the top of the outer surface of the fixed rod 3171. A spring 3173 is welded between the auxiliary piece 3174 and the fixed sleeve 3172. The fixed rod 3171 is slidably connected inside the fixed sleeve 3172. When no external force is applied, the spring 3173 is in a compressed state. The spring 3173 pushes the fixed rod 3171 upward through the auxiliary piece 3174, so that the upper connecting box 312 is always in a state of wanting to move away from the lower connecting box 311, so that the upper connecting box 312 can better fit with the LED lighting lamp 200.

[0030] In this embodiment, as Figure 2 As shown, the mounting base 100 has a mounting groove 110 that penetrates the mounting base 100 on its lower surface. The mounting groove 110 has a fixing groove 120 on the lower middle of the left and right sides of its surface. The fixing groove 120 has a threaded hole on its upper surface. The fixing piece 313 has a through hole on its upper surface. The through hole and the threaded hole are positioned correspondingly. The fixing piece 313 is installed in the fixing groove 120 by fixing bolts. The fixing bolts pass through the through hole and are threadedly connected to the threaded hole, thereby fixing the fixing piece 313 inside the fixing groove 120.

[0031] In this embodiment, as Figure 1 As shown, the upper connecting box 312 passes through the mounting groove 110 and is tightly fitted to the lower surface of the LED lighting lamp 200. The top view dimensions of the lower connecting box 311 are the same as those of the mounting groove 110. The upper connecting box 312 passes through the mounting groove 110 and is tightly fitted to the lower surface of the LED lighting lamp 200, which minimizes the heat transfer path between the LED lighting lamp 200 and the heat pipe heat dissipation mechanism 300, reduces heat loss during the transfer process, and allows the heat generated by the LED to be quickly transferred to the upper connecting box 312, and then dissipated through the heat conduction plate 314, heat dissipation channel 315, heat pipe 320 and heat sink 330, which greatly improves the heat dissipation efficiency, effectively controls the operating temperature of the LED lighting lamp 200, and ensures its lighting performance and service life.

[0032] It is worth noting that the structure and working principle of the heat pipe 320 and heat sink 330 involved in this embodiment are as known to those skilled in the art, and will not be described in detail here. The structure and working principle of the LED lighting lamp 200 involved in this embodiment are all technologies disclosed in the prior art, and will not be described in detail here.

[0033] In the specific use of the heat pipe enhanced heat dissipation automotive LED lighting device of this embodiment, the LED lighting lamp 200 is first installed on the upper surface of the mounting base 100. Then, the heat pipe heat dissipation mechanism 300 is inserted from the lower surface of the mounting base 100 into the mounting groove 110. After the fixing plate 313 enters the fixing groove 120, the fixing plate 313 is fixed in the fixing groove 120 using fixing bolts. The upper connecting box 312 of the magnet and the LED lighting lamp 200 are tightly attached under the action of the spring mechanism 317. When the LED lighting lamp 200 illuminates and generates heat, the heat can be transferred to the upper connecting box 312. Then, heat dissipation is completed through the heat conduction plate 314, heat dissipation channel 315, heat dissipation pipe 320 and heat sink 330. The heat generated by the LED lighting lamp 200 can be effectively guided away for heat dissipation, preventing heat accumulation that could cause the LED lighting lamp 200 to malfunction.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat pipe-enhanced heat dissipation automotive LED lighting device, including a mounting base (100), characterized in that: An LED lighting lamp (200) is fixedly installed on the upper surface of the mounting base (100), and a heat pipe heat dissipation mechanism (300) is fixedly installed on the lower surface of the mounting base (100). The heat pipe heat dissipation mechanism (300) includes a connecting mechanism (310), a plurality of heat dissipation pipes (320) fixedly connected to the left and right sides of the connecting mechanism (310), and a plurality of heat dissipation fins (330) installed on the outer surface of the heat dissipation pipes (320). The connecting mechanism (310) includes a lower connecting box (311), two fixing plates (313) welded to the upper end of the middle position of the front and rear sides of the outer end of the lower connecting box (311), and an upper connecting box (312) slidably connected to the inside of the lower connecting box (311). A spring mechanism (317) is welded between the middle position of the lower surface of the upper connecting box (312) and the middle position of the upper surface of the lower connecting box (311). Two heat dissipation channels (315) are welded between the front and rear inner sidewalls of the lower connecting box (311). Each heat dissipation channel (315) is provided with a heat-conducting plate (314) on the left and right sides. The lower ends of the two heat-conducting plates (314) on the left and right sides of the same heat dissipation channel (315) are welded with limit plates (316). The upper end of each heat-conducting plate (314) is welded to the upper surface inside the upper connecting box (312).

2. The automotive LED lighting device with enhanced heat dissipation via heat pipe as described in claim 1, characterized in that: The heat dissipation channel (315) is a square pipe, and both ends of the heat dissipation channel (315) are connected to the heat dissipation pipe (320) respectively. The heat conduction plate (314) is in contact with the heat dissipation channel (315) near it.

3. The automotive LED lighting device with enhanced heat dissipation via heat pipe as described in claim 1, characterized in that: The spring mechanism (317), fixing plate (313), lower connecting box (311) and upper connecting box (312) are all made of pure aluminum material and covered with a layer of high thermal conductivity ceramic material composed of aluminum nitride.

4. The automotive LED lighting device with enhanced heat dissipation via heat pipe as described in claim 1, characterized in that: The spring mechanism (317) includes a fixed sleeve (3172) welded to the middle position of the upper surface inside the lower connecting box (311) and a fixed rod (3171) welded to the lower surface inside the upper connecting box (312). An auxiliary piece (3174) is welded to the top of the outer surface of the fixed rod (3171), and a spring (3173) is welded between the auxiliary piece (3174) and the fixed sleeve (3172).

5. The automotive LED lighting device with enhanced heat dissipation via heat pipe as described in claim 4, characterized in that: The fixing rod (3171) is slidably connected inside the fixing sleeve (3172), and the spring (3173) is in a compressed state when no external force is applied.

6. The automotive LED lighting device with enhanced heat dissipation via heat pipe as described in claim 5, characterized in that: The mounting base (100) has a mounting groove (110) that penetrates the mounting base (100) on its lower surface, and a fixing groove (120) is provided on the lower middle side of the left and right sides of the mounting groove (110).

7. The automotive LED lighting device with enhanced heat dissipation via heat pipe as described in claim 6, characterized in that: The upper surface of the fixing groove (120) is provided with a threaded hole, and the upper surface of the fixing piece (313) is provided with a through hole. The through hole and the threaded hole are positioned corresponding to each other. The fixing piece (313) is installed in the fixing groove (120) by fixing bolts.

8. The automotive LED lighting device with enhanced heat dissipation via heat pipe as described in claim 6, characterized in that: The upper connecting box (312) passes through the mounting groove (110) and fits tightly against the lower surface of the LED lighting lamp (200). The top view dimensions of the lower connecting box (311) are the same as those of the mounting groove (110).

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