Heat dissipation structure of automobile LED (light-emitting diode) lamp

Abstract

The utility model discloses an automobile LED lamp heat dissipation structure which comprises a lamp panel and a heat dissipation base arranged at the bottom of the lamp panel, and a plurality of first heat dissipation pieces are arranged on the peripheral side of the lamp panel and attached to the lamp panel. Compared with an existing automobile LED lamp heat dissipation structure matched with a hot air flow guide groove and other structures, the heat dissipation base is arranged at the bottom of the lamp panel, the multiple first heat dissipation pieces are arranged on the peripheral side of the lamp panel and attached to the lamp panel, and heat on the lamp panel can be rapidly dissipated through structural cooperation of the heat dissipation base and the first heat dissipation pieces; according to the technical scheme, the LED lamp panel is simple in structure, the heat dissipation effect is greatly improved, and the LED lamp panel can be widely applied and popularized.

Description

Technical Field

[0001] The utility model particularly relates to a heat dissipation structure of an automobile LED lamp. Background Art

[0002] Automobile LED lights, the main function of the lights is lighting and signaling. The light emitted by the lights can illuminate the road conditions in front of the car body, so that the driver can drive safely at night. LED lights will generate heat during use. In order to prevent heat accumulation from affecting the performance of LED lights, such as the high-efficiency heat dissipation automobile LED headlights disclosed in the utility patent with authorization announcement number CN206369162U, when in use, by setting a fixing plate, a radiator, a hot air guide plate, a hot air guide groove, a heat dissipation fin and a heat dissipation groove, it plays the role of cooling the LED headlights, extending the service life of the LED headlights. The lamp post adopts an embedded structure connected to the heat dissipation part of the lamp body, which is convenient for the processing advantages of the entire lamp body and achieves a more considerable heat transfer effect; however, there are many structural components, and the assembly is complicated, and the heat dissipation effect is not ideal. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a heat dissipation structure of an automotive LED lamp.

[0004] In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

[0005] A heat dissipation structure of an automobile LED lamp comprises a lamp board and a heat dissipation seat arranged on the bottom of the lamp board. A plurality of first heat dissipation members are arranged on the peripheral side of the lamp board and the first heat dissipation members are attached to the lamp board.

[0006] Preferably, the lamp board includes a substrate and lamp beads arranged on the substrate.

[0007] Preferably, the first heat sinks are respectively provided on both sides of the substrate, a second heat sink is provided on the substrate between adjacent first heat sinks, the lamp bead is located at the upper end of the substrate, and the upper end surface of the second heat sink is lower than the lower end surface of the lamp bead.

[0008] Preferably, the first heat sink and the second heat sink are both copper heat pipes.

[0009] Preferably, the heat sink is composed of a plurality of heat sink fins, each heat sink fin is provided with a fin portion and a heat sink connection portion, the fin portions of the plurality of heat sink fins are parallel to each other, and there are gaps between adjacent fin portions; adjacent fin portions are connected, and all heat sink connection portions are commonly connected to the substrate.

[0010] Preferably, a mounting seat is provided at the lower end of the substrate, and all heat dissipation connecting parts are connected to the peripheral side of the mounting seat.

[0011] Preferably, the number of the first heat sinks and the number of the second heat sinks are both 2, and the first heat sink and the second heat sink are arranged parallel to each other.

[0012] Preferably, the heat dissipation fins are aluminum fins or copper fins.

[0013] The beneficial effects of the utility model are:

[0014] Compared with the existing automotive LED lamp heat dissipation structure with structural coordination such as hot air guide grooves, the present application has a heat sink on the bottom of the lamp board, and a first heat sink is provided on the peripheral side of the lamp board and the first heat sink is attached to the lamp board. The heat on the lamp board can be quickly dissipated through the structural coordination of the heat sink and the first heat sink to prevent heat accumulation from causing excessive temperature to damage the lamp board. The technical solution of the present application has a simple structure and greatly improves the heat dissipation effect, and can be widely applied and promoted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of a heat dissipation structure of an automotive LED lamp in this application. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of a heat dissipation structure of an automotive LED lamp in this application. Figure 2 . DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0019] The orientation shown in the drawings cannot be understood as limiting the specific protection scope of the present utility model, and is only provided for reference and understanding of the preferred embodiments. The product components shown in the drawings may be changed in position, increased in number, or simplified in structure.

[0020] The "connection" described in the specification and the mutual "connection" relationship of the components shown in the drawings can be understood as a fixed connection or a detachable connection or an integral connection; it can be a direct connection or a connection through an intermediate medium. Ordinary technicians in this field can understand the connection relationship according to the specific circumstances and can derive different implementation methods in an appropriate manner such as screwing, riveting, welding, clamping or embedding.

[0021] With respect to the directional words such as up, down, left, right, top, bottom, etc. described in the specification and the directions shown in the drawings, the components may be in direct contact or in contact through other features between them; for example, "above" may mean directly above or obliquely above, or it simply means higher than other objects; other directions may be understood by analogy.

[0022] The materials for making parts with solid shapes shown in the specification and the drawings may be metal materials, non-metal materials or other synthetic materials; the mechanical processing techniques used for parts with solid shapes may be stamping, forging, casting, wire cutting, laser cutting, casting, injection molding, CNC milling, 3D printing, machining, etc.; ordinary technicians in this field can adaptively select or combine them according to different processing conditions, costs, and precisions, but are not limited to the above-mentioned materials and manufacturing processes.

[0023] A heat dissipation structure of automotive LED lamp, referring to Figure 1-Figure 2 , including a lamp board 1 and a heat sink 2 arranged on the bottom of the lamp board 1 , a plurality of first heat sinks 3 are arranged on the periphery of the lamp board 1 and the first heat sinks 3 are attached to the lamp board 1 .

[0024] Furthermore, the lamp board 1 includes a substrate 11 and lamp beads 12 arranged on the substrate 11 .

[0025] Furthermore, the first heat sinks 3 are respectively provided on both sides of the substrate 11, and the second heat sinks 4 are provided on the substrate 11 between adjacent first heat sinks 3. The lamp bead 12 is located at the upper end of the substrate 11, and the upper end surface of the second heat sink 4 is lower than the lower end surface of the lamp bead 12.

[0026] Furthermore, the first heat sink 3 and the second heat sink 4 are both copper heat pipes.

[0027] Furthermore, the heat sink 2 is composed of a plurality of heat sink fins 21, and the heat sink fins 21 are provided with fin portions 22 and heat sink connection portions 23. The fin portions 22 of the plurality of heat sink fins 21 are parallel to each other, and there are gaps between adjacent fin portions 22; adjacent fin portions 22 are connected, and all heat sink connection portions 23 are commonly connected to the substrate 11.

[0028] Furthermore, a mounting seat 5 is provided at the lower end of the substrate 11 , and all heat dissipation connecting parts 23 are connected to the peripheral side of the mounting seat 5 .

[0029] Furthermore, the number of the first heat sinks 3 and the number of the second heat sinks 4 are both 2, and the first heat sinks 3 and the second heat sinks 4 are arranged parallel to each other.

[0030] Furthermore, the heat dissipation fins 21 are aluminum fins or copper fins.

[0031] The working principle of the utility model is:

[0032] like Figure 1-Figure 2 As shown, when the lamp bead 12 on the substrate 11 is started, the heat generated by the lamp bead 12 during operation is divided into three parts for dissipation. The first part of the heat is transferred to the first heat sink 3 attached to the substrate 11, and the first heat sink 3 immediately dissipates the heat. The second part of the heat is directly dissipated through the substrate 11, and the third part of the heat is dissipated through the heat sink 2. The specific working principle is: the gap formed by adjacent fin portions 22 can increase the contact area between the heat sink fins 21 and the air, thereby ensuring the air circulation, and using the air circulation to dissipate the heat in time, thereby preventing heat from accumulating near the lamp bead 12, and preventing heat accumulation from causing temperature rise and affecting the service life of the lamp bead 12. As embodiment 1, the first heat sink 3 can be implemented by a copper heat pipe.

[0033] On the basis of the above technical scheme, the present application also provides a second heat sink 4 on the substrate 11 between adjacent first heat sinks 3. In order to prevent the second heat sink 4 from affecting the light projection range of the lamp bead 12, the upper end surface of the second heat sink 4 must be lower than the lower end surface of the lamp bead 12. The provision of the second heat sink 4 also speeds up the heat dissipation around the lamp bead 12. Similarly, the second heat sink 4 can also be implemented by a copper heat pipe. After multiple performance tests, when a copper heat pipe is provided on both sides of the substrate 11, a copper heat pipe is provided on the substrate 11 between the two copper heat pipes, and the first heat sink 3 and the second heat sink 4 are provided in parallel with each other, the heat dissipation effect is greatly improved by this provision. The heat sink fins 21 mentioned in the above technical scheme can be implemented by aluminum fins or copper fins.

[0034] Compared with the existing automotive LED lamp heat dissipation structure with structural coordination such as hot air guide grooves, the present application is provided with a heat sink 2 on the bottom of the lamp board 1, and a first heat sink 3 is provided on the peripheral side of the lamp board 1 and the first heat sink 3 is attached to the lamp board 1. Through the structural coordination of the heat sink 2 and the first heat sink 3, the heat on the lamp board 1 can be quickly dissipated to prevent heat accumulation from causing excessive temperature to damage the lamp board 1. The technical solution of the present application has a simple structure and greatly improves the heat dissipation effect, and can be widely applied and promoted.

[0035] In the above technology, the first heat sink 3 and the second heat sink 4 may be selectively welded on the substrate 11 .

[0036] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.

Claims

1. A heat dissipation structure of an automotive LED lamp, characterized in that: The invention comprises a lamp board (1) and a heat sink (2) arranged on the bottom of the lamp board (1); a plurality of first heat sinks (3) are arranged on the peripheral side of the lamp board (1) and the first heat sinks (3) are attached to the lamp board (1); the lamp board (1) comprises a substrate (11) and lamp beads (12) arranged on the substrate (11); the first heat sinks (3) are arranged on both sides of the substrate (11); a second heat sink (4) is arranged on the substrate (11) between adjacent first heat sinks (3); the lamp beads (12) are arranged on the substrate (11) and the first heat sinks (3) are arranged on the substrate (11) between adjacent first heat sinks (3); 12) is located at the upper end of the substrate (11), the upper end surface of the second heat sink (4) is lower than the lower end surface of the lamp bead (12), the heat sink (2) is composed of a plurality of heat dissipation fins (21), the heat dissipation fins (21) are provided with fin parts (22) and heat dissipation connection parts (23), the fin parts (22) of the plurality of heat dissipation fins (21) are parallel to each other, and there are gaps between adjacent fin parts (22); adjacent fin parts (22) are connected, and all heat dissipation connection parts (23) are commonly connected to the substrate (11).

2. The automotive LED lamp heat dissipation structure according to claim 1, characterized in that: The first heat sink (3) and the second heat sink (4) are both copper heat pipes.

3. The automotive LED lamp heat dissipation structure according to claim 1, characterized in that: A mounting seat (5) is provided at the lower end of the base plate (11), and all heat dissipation connection parts (23) are connected to the peripheral side of the mounting seat (5).

4. The automotive LED lamp heat dissipation structure according to claim 1, characterized in that: The number of the first heat sinks (3) and the number of the second heat sinks (4) are both 2, and the first heat sink (3) and the second heat sink (4) are arranged parallel to each other.

5. The automotive LED lamp heat dissipation structure according to claim 1, characterized in that: The heat dissipation fins (21) are aluminum fins or copper fins.

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