Novel LED car lamp structure

Abstract

The utility model discloses a novel LED car lamp structure which comprises a heat conduction substrate, LED lamp beads arranged on the heat conduction substrate and a heat dissipation device arranged at the lower end of the heat conduction substrate, heat conduction copper pipes are arranged on the two sides of the heat conduction substrate, and connecting sleeves used for being fixedly connected with the heat dissipation device are arranged on the two sides of the heat conduction substrate in a sleeved mode. The connecting sleeve is fixedly connected with the heat conduction substrate and the heat conduction copper pipe in a tin soldering mode, and the connecting sleeve is fixedly connected with the heat dissipation device in a riveting mode. The connecting sleeve is fixedly connected with the heat conduction substrate and the heat conduction copper pipe in a tin soldering mode, then the connecting sleeve is riveted to the heat dissipation device, traditional heat dissipation silica gel is replaced with tin soldering for heat conduction, the heat conduction performance is better, and the service life is longer. And secondly, heat generated by the LED lamp beads is guided out and dissipated through the heat conduction copper pipe and the heat conduction substrate, the heat dissipation effect is better, the size of the connecting sleeve is small, materials can be saved, the connecting sleeve is connected with the heat dissipation device in a riveting mode, screw connection is not needed, and the assembly efficiency is higher.

Description

Technical fields:

[0001] This utility model relates to the field of automotive lighting technology, and specifically to a novel LED vehicle lighting structure. Background technology:

[0002] As a revolutionary technology in automotive lighting, LED headlights have gradually replaced traditional halogen and xenon lamps since the beginning of the 21st century. Their core advantage lies in the semiconductor light-emitting principle—when current passes through a semiconductor chip, it excites electron-hole recombination to release photons, achieving an electro-optical conversion efficiency of up to 80%. Energy consumption is only 1 / 5 that of halogen lamps, while lifespan exceeds 50,000 hours. Initially limited by high costs (approximately 5 times that of halogen lamps) and heat dissipation challenges (frequent cases of light decay exceeding 24%), LEDs were mainly used for secondary functions such as daytime running lights and taillights. With breakthroughs in heat pipe cooling technology (such as copper thermal conductive substrates) and miniaturized chip manufacturing processes, brands like Audi were the first to implement LED headlights after 2015, achieving advanced functions such as adaptive high beams and dynamic light carpets through intelligent drive modules (such as the 25,600-pixel independent control of the Osram EVIYOS HD 25). Current technological focus has shifted to high-brightness integration (2000lm luminous flux per chip), optimized optical expansion (12mm thin lens design), and automotive-grade reliability verification (IP69 protection).

[0003] Chinese utility model patent CN 207990523 U discloses an LED automotive lamp, including a lamp body. The lamp body is mounted on an automotive lamp housing via a chuck in the middle. A heat-conducting substrate is installed inside the lamp body, and at least one LED chip is mounted on each of the two sides of the heat-conducting substrate. The lamp body has light-transmitting windows at the corresponding LED chip positions. A heat dissipation device is provided at the lower part of the lamp body. The heat dissipation device includes a heat sink, a fan assembly, and a flow guiding assembly. The fan assembly is mounted below the heat sink via the flow guiding assembly. External airflow flows through the fan assembly and the heat sink via the flow guiding assembly, carrying away the heat conducted from inside the lamp body to the heat sink for heat dissipation. This LED automotive lamp reduces the distance between the LED light sources on both sides, making the light emission more concentrated. At the same time, the design of the windows on the lamp body is more conducive to increasing the brightness of the LED chips and reducing glare, greatly improving the heat dissipation efficiency of the LED automotive lamp and extending its service life.

[0004] However, in the aforementioned patent, the heat-conducting substrate is located inside the lamp body and is clamped and fixed by the first lamp body and the second lamp body. The heat dissipation device at the rear of the lamp body generates airflow to carry the heat out of the lamp body for heat dissipation. However, since the heat generated by the LED beads is relatively concentrated, the heat dissipation device at the rear alone cannot achieve efficient heat dissipation, which makes the LED beads prone to damage when working for a long time.

[0005] In view of the above, the inventors propose the following technical solution. Utility Model Content:

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a new LED vehicle light structure.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a novel LED vehicle light structure, comprising: a heat-conducting substrate, LED beads disposed on the heat-conducting substrate, and a heat dissipation device disposed at the lower end of the heat-conducting substrate. Heat-conducting copper pipes are disposed on both sides of the heat-conducting substrate, and a connecting sleeve for connecting and fixing with the heat dissipation device is sleeved thereon. The connecting sleeve is connected and fixed to the heat-conducting substrate and the heat-conducting copper pipes by soldering, and the connecting sleeve is connected and fixed to the heat dissipation device by riveting.

[0008] Furthermore, in the above technical solution, the connecting sleeve is provided with a T-shaped through hole, and the heat-conducting substrate and the heat-conducting copper tube pass through the T-shaped through hole and are fixed to the connecting sleeve by soldering.

[0009] Furthermore, in the above technical solution, the heat dissipation device includes a heat sink base, a fan disposed at the lower end of the heat sink base, and a fan bracket for cooperating and fixing the fan, wherein the upper end of the heat sink base is provided with a riveting hole for fixing the connecting sleeve.

[0010] Furthermore, in the above technical solution, the lower end of the connecting sleeve extends into the riveting hole, and the middle part of the connecting sleeve is formed with a limiting step for pressing against the upper surface of the heat sink.

[0011] Furthermore, in the above technical solution, the connecting sleeve is also fitted with an installation chuck.

[0012] Furthermore, in the above technical solution, the upper end of the connecting sleeve is provided with at least two locking protrusions for locking the mounting chuck, and the inner wall of the mounting chuck is provided with locking grooves for corresponding locking protrusions.

[0013] Furthermore, in the above technical solution, one or three mounting plates for mounting LED vehicle lights are provided on the periphery of the mounting chuck.

[0014] Furthermore, in the above technical solution, the outer wall of the connecting sleeve is provided with multiple annular grooves for installing the sealing ring, and the mounting chuck is clamped and fixed on the connecting sleeve by interference fit with the sealing ring.

[0015] Furthermore, in the above technical solution, a reflector cup is provided at the upper end of the thermally conductive substrate, located behind the LED beads.

[0016] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: In this utility model, the connecting sleeve is connected and fixed to the heat-conducting substrate and the heat-conducting copper pipe by soldering, and then the connecting sleeve is riveted to the heat dissipation device. Soldering replaces the traditional heat dissipation silicone for heat conduction, resulting in better heat conduction performance and a longer service life. Secondly, the use of the heat-conducting copper pipe to assist the heat-conducting substrate in dissipating the heat generated by the LED beads not only has a better heat dissipation effect, but also the connecting sleeve is small in size, which can save materials. Furthermore, the connection to the heat dissipation device by riveting eliminates the need for screws, saving assembly steps, reducing manual labor intensity, and increasing assembly efficiency. Attached image description:

[0017] Figure 1 This is a perspective view of Embodiment 1 of this utility model;

[0018] Figure 2 This is an exploded view of Embodiment 1 of this utility model;

[0019] Figure 3 This is a perspective view of Embodiment 2 of this utility model;

[0020] Figure 4 This is an exploded view of Embodiment 2 of this utility model;

[0021] Figure 5 This is a perspective view of Embodiment 3 of this utility model;

[0022] Figure 6 This is an exploded view of Embodiment 3 of this utility model. Detailed implementation method:

[0023] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0024] See Figures 1 to 6The diagram illustrates a novel LED automotive light structure, comprising a heat-conducting substrate 1, LED beads 2 mounted on the heat-conducting substrate 1, and a heat dissipation device 3 located at the lower end of the heat-conducting substrate 1. Heat-conducting copper pipes 4 are arranged on both sides of the heat-conducting substrate 1, and a connecting sleeve 5 is fitted onto it for connection and fixation to the heat dissipation device 3. The connecting sleeve 5 is connected and fixed to the heat-conducting substrate 1 and the heat-conducting copper pipes 4 by soldering, and then riveted to the heat dissipation device 3. Using solder to connect and fix the connecting sleeve 5 to the heat-conducting substrate 1 and the heat-conducting copper pipes 4, and then riveting the connecting sleeve 5 to the heat dissipation device 3, replaces traditional thermal silicone for heat conduction, resulting in better thermal conductivity and a longer service life. Furthermore, utilizing the heat-conducting copper pipes 4 to assist the heat-conducting substrate 1 in dissipating the heat generated by the LED beads 2 not only improves heat dissipation but also saves materials due to the smaller size of the connecting sleeve 5. The riveting connection to the heat dissipation device 3 eliminates the need for screws, saving assembly steps, reducing labor intensity, and increasing assembly efficiency.

[0025] The upper end of the heat-conducting substrate 1 is provided with a reflector cup 7 located behind the LED bead 2. The connecting sleeve 5 is provided with a T-shaped through hole 51. The heat-conducting substrate 1 and the heat-conducting copper tube 4 are attached to each other and pass through the T-shaped through hole 51, and are fixed to the connecting sleeve 5 by soldering.

[0026] The heat dissipation device 3 includes a heat sink 31, a fan disposed at the lower end of the heat sink 31, and a fan bracket 32 ​​for fixing the fan. The upper end of the heat sink 31 is provided with a riveting hole 30 for fixing a connecting sleeve 5. The lower end of the connecting sleeve 5 extends into the riveting hole 30, and the middle part of the connecting sleeve 5 is formed with a limiting step portion 52 for pressing against the upper surface of the heat sink 31.

[0027] In Embodiment 1, a mounting chuck 6 is also fitted onto the connecting sleeve 5. A mounting plate 62 for mounting LED vehicle lights is provided on the periphery of the mounting chuck 6. At least two locking protrusions 53 are provided at the upper end of the connecting sleeve 5 for locking the mounting chuck 6, and the inner wall of the mounting chuck 6 is provided with locking grooves 61 corresponding to the locking protrusions 53. The upper end of the mounting chuck 6 is also provided with retaining ring grooves 63 corresponding to the locking protrusions 53, wherein the locking grooves 61 and 63 are correspondingly connected.

[0028] In embodiment two, a mounting chuck 6 is also fitted onto the connecting sleeve 5. Three mounting plates 62 for mounting LED vehicle lights are provided around the mounting chuck 6. At least two locking protrusions 53 are provided at the upper end of the connecting sleeve 5 for locking the mounting chuck 6, and the inner wall of the mounting chuck 6 is provided with locking grooves 61 corresponding to the locking protrusions 53. The upper end of the mounting chuck 6 is also provided with retaining ring grooves 63 corresponding to the locking protrusions 53, wherein the locking grooves 61 and retaining ring grooves 63 are correspondingly connected.

[0029] In Embodiment 3, the outer wall of the connecting sleeve 5 is provided with a plurality of annular grooves 54 for installing the sealing ring, and the mounting chuck 6 is clamped and fixed on the connecting sleeve 5 by means of interference fit with the sealing ring.

[0030] In summary, in this invention, the heat-conducting substrate 1 and the heat-conducting copper tube 4 are fixed together with the connecting sleeve 5 by soldering, and then the connecting sleeve 5 is riveted to the heat dissipation device 3. This not only reduces assembly steps and improves production efficiency, but also uses solder as a heat-conducting medium to transfer the heat generated by the LED beads 2 to the heat dissipation device 3. This not only provides better thermal conductivity and eliminates the need for thermal silicone, resulting in a longer service life, but also makes the size of the connecting sleeve 5 smaller than that of the traditional lamp body, significantly saving materials and reducing production costs.

[0031] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A novel LED vehicle light structure, comprising a heat-conducting substrate (1), LED beads (2) disposed on the heat-conducting substrate (1), and a heat dissipation device (3) disposed at the lower end of the heat-conducting substrate (1), characterized in that: Thermal conductive copper pipes (4) are provided on both sides of the thermal conductive substrate (1), and a connecting sleeve (5) for connecting and fixing to the heat dissipation device (3) is provided. The connecting sleeve (5) is connected and fixed to the thermal conductive substrate (1) and the thermal conductive copper pipes (4) by soldering. The connecting sleeve (5) is connected and fixed to the heat dissipation device (3) by riveting.

2. The novel LED vehicle light structure according to claim 1, characterized in that: The connecting sleeve (5) is provided with a T-shaped through hole (51). The heat-conducting substrate (1) and the heat-conducting copper tube (4) are attached to each other and pass through the T-shaped through hole (51), and are fixed to the connecting sleeve (5) by soldering.

3. The novel LED vehicle light structure according to claim 1, characterized in that: The heat dissipation device (3) includes a heat dissipation base (31), a fan disposed at the lower end of the heat dissipation base (31), and a fan bracket (32) for fixing the fan. The upper end of the heat dissipation base (31) is provided with a riveting hole (30) for fixing the connecting sleeve (5).

4. The novel LED vehicle light structure according to claim 3, characterized in that: The lower end of the connecting sleeve (5) extends into the riveting hole (30), and the middle part of the connecting sleeve (5) is formed with a limiting step (52) for pressing against the upper surface of the heat sink (31).

5. A novel LED vehicle lamp structure according to any one of claims 1-4, characterized in that: An installation chuck (6) is also fitted onto the connecting sleeve (5).

6. The novel LED vehicle light structure according to claim 5, characterized in that: The upper end of the connecting sleeve (5) is provided with at least two locking protrusions (53) for locking the mounting chuck (6), and the inner wall of the mounting chuck (6) is provided with locking grooves (61) for corresponding locking protrusions (53).

7. The novel LED vehicle light structure according to claim 6, characterized in that: One or three mounting plates (62) for mounting LED vehicle lights are provided on the periphery of the mounting chuck (6).

8. The novel LED vehicle light structure according to claim 5, characterized in that: The outer wall of the connecting sleeve (5) is provided with a plurality of annular grooves (54) for installing the sealing ring, and the mounting chuck (6) is clamped and fixed on the connecting sleeve (5) by means of interference fit with the sealing ring.

9. A novel LED vehicle lamp structure according to any one of claims 6-8, characterized in that: The upper end of the thermally conductive substrate (1) is provided with a reflector cup (7) located behind the LED beads (2).

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