A vehicle lamp heat sink structure

Abstract

The utility model provides a kind of car light radiator structure, it can reduce the possibility that car light radiator structure is easily deformed due to knock, extrusion, it can also limit the swing amplitude of fin during vibration test, reduce even avoid the phenomenon that fin appears loose even breaks down. Its structure includes substrate, fin, fin has multiple and is mutually spaced and installed on substrate, substrate is also connected with fixed plate, fixed plate includes fixed part, connecting part and limiting part, fixed part is used to connect with substrate, connecting part is used to connect fixed part and limiting part, limiting part extends along fin width direction and spans multiple fins, limiting part is connected with first limiting rib, first limiting rib is located between two adjacent fins.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, specifically to a structure for an automotive lighting radiator. Background Technology

[0002] Vehicle lights require heat dissipation through radiators during use. Existing radiator structures, such as the combined vehicle light radiator disclosed in patent CN219693032U, include a base plate and fins. The fins are connected to the base plate by riveting, and multiple fins are parallel to each other with gaps between them for heat dissipation. Due to the thinness of the fins, they are prone to deformation when bumped or squeezed during assembly and transportation (e.g., adjacent fins are squeezed and deformed). Furthermore, vibration tests are sometimes required for vehicle lights, involving the X (fin length direction), Y (fin width direction), and Z directions. Existing finned radiators are prone to fin loosening or even breakage during vibration tests, especially in the Y direction (fin width direction). Utility Model Content

[0003] In response to the problem that existing automotive headlight radiator structures are prone to deformation due to impacts and compression, and are easily loosened or even broken during vibration tests, this utility model provides an automotive headlight radiator structure that can reduce the possibility of deformation due to impacts and compression, and at the same time limit the swing amplitude of the fins during vibration tests, reducing or even avoiding the phenomenon of fins loosening or breaking.

[0004] The technical solution is as follows: a vehicle headlight radiator structure, comprising a base plate and fins, wherein multiple fins are spaced apart and mounted on the base plate, characterized in that: a fixing plate is also connected to the base plate, the fixing plate comprising a fixing part, a connecting part, and a limiting part, the fixing part being used to connect to the base plate, the connecting part being used to connect the fixing part and the limiting part, the limiting part extending along the width direction of the fins and spanning multiple fins, and a first limiting rib being connected to the limiting part, the first limiting rib being located between two adjacent fins.

[0005] Furthermore, the fins are U-shaped and include two longitudinally extending heat sinks and a laterally extending connecting piece. The connecting piece is used to connect to the substrate. A second limiting rib is also connected to the limiting portion, and the second limiting rib is located between the two heat sinks of each fin.

[0006] Furthermore, the limiting portion is located above the fins, the limiting portion spans all the fins, and the first limiting rib extends downward to between two adjacent fins.

[0007] Furthermore, the limiting portion is located above the fins, and the limiting portion spans all the fins. The first limiting rib and the second limiting rib extend downward to the space between two adjacent fins and the two heat sinks of the same fin, respectively.

[0008] Furthermore, the first limiting rib and the second limiting rib are located at opposite ends of the limiting portion.

[0009] Furthermore, the fixing plate is also connected to a third limiting rib, which is located on the left side of the leftmost fin and the right side of the rightmost fin.

[0010] Furthermore, the third limiting rib is connected to the connecting part.

[0011] Beneficial effects: By adding a fixing plate to the radiator, the first limiting rib on the fixing plate is used to insert between two adjacent fins, thereby limiting the deformation or swing amplitude of the fins. At the same time, the fixing plate that spans multiple fins, especially when it is positioned above the fins, can protect the fins, thereby reducing the possibility that the structure of the vehicle headlight radiator is easily deformed by bumps and squeezing. It can also limit the swing amplitude of the fins during vibration tests, reducing or even avoiding the phenomenon of fins loosening or even breaking. Attached Figure Description

[0012] Figure 1 This is a top view of the present invention;

[0013] Figure 2 This is a front view schematic diagram of the present invention;

[0014] Figure 3 This is a schematic diagram showing the position of the first limiting rib.

[0015] Figure 4 This is a schematic diagram of the position of the third limiting rib. Detailed Implementation

[0016] like Figure 1 , Figure 2The illustrated automotive headlight radiator structure includes a base plate 1 and fins 2. Multiple fins 2 are spaced apart and mounted on the base plate 1. A fixing plate 3 is also connected to the base plate 1. The fixing plate 3 includes a fixing part 3-1, a connecting part 3-2, and a limiting part 3-3. The fixing part 3-1 is used for riveting to the base plate 1. The connecting part 3-2 is used to connect the fixing part 3-1 and the limiting part 3-3. The limiting part 3-3 extends along the width direction of the fins 2 and spans multiple fins 2. A first limiting rib 4 is connected to the limiting part 3-3, and the first limiting rib 4 is located between two adjacent fins 2. The first limiting rib 4 can limit the swing amplitude of the fins, thereby reducing or even avoiding the phenomenon of fins 2 loosening or even breaking during the test. At the same time, it can also limit the deformation of the fins 2. In addition, the setting of the fixing plate 3 can protect the fins 2. Preferably, the limiting part 3-3 is located above the fins 2 and spans all the fins 2. The first limiting rib 4 extends downward to the space between two adjacent fins 2. This can better protect the fins 2 with the fixing plate 3. The bottom of the limiting part 3-3 is open to ensure air circulation.

[0017] Specifically, the fin 2 is similar to the existing heat sink fin structure in that it is U-shaped and includes two longitudinally extending heat sinks 2-1 and a transversely extending connecting piece 2-2. The connecting piece 2-2 is used to rivet to the substrate 1. A second limiting rib 5 is also connected to the limiting part 3-3. The second limiting rib 5 is located between the two heat sinks 2-1 of each fin 2. Based on the above preferred embodiment, the second limiting rib 5 also extends downward to between the two heat sinks 2-1 of the same fin.

[0018] By surrounding and installing a fixing plate 3 with a thickness of 0.8mm-1mm on the outside of the fins 2, and with perforations at the top and bottom to ensure heat dissipation performance, the internal fins 2 will not deform during collisions and compressions during installation and transportation. Simultaneously, the thickness of the internal fins 2 can be reduced from the original 0.8mm-1mm to 0.5mm, resulting in a weight reduction of over 37% for the radiator fins. Furthermore, combined with... Figure 3 , Figure 4 The gap a between the first limiting rib 4 and the fin 2 is controlled at 0.5mm-0.7mm (the second limiting rib 5 is similar). A third limiting rib 6 is provided on the outer side of the fins on both sides. The gap b between the third limiting rib 6 and the fin 2 is controlled at 0.5mm-0.7mm. The heads of the limiting ribs are designed with guide structures to ensure that the fixing plate is installed normally. They can limit the left and right swing of each fin when the lamp is subjected to Y-axis vibration test, so as to avoid the fins from loosening or even breaking.

[0019] In addition, the first limiting rib 4 and the second limiting rib 5 are located at opposite ends of the limiting part 3-3 to avoid being too dense. For the protection of the outermost fin 2, the fixing plate 3 is also connected to the third limiting rib 6. The third limiting rib 6 is located on the left side of the leftmost fin 2 and the right side of the rightmost fin 2. The third limiting rib 6 is preferably connected to the connecting part 3-2. In this way, the outermost fin 2 is restricted by the third limiting rib 6 and a certain gap is made between the connecting part 3-2 and the outermost fin 2. This not only facilitates installation, but also increases the heat dissipation space.

[0020] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A vehicle headlight radiator structure, comprising a base plate and fins, wherein multiple fins are spaced apart and mounted on the base plate, characterized in that: A fixing plate is also connected to the substrate. The fixing plate includes a fixing part, a connecting part, and a limiting part. The fixing part is used to connect to the substrate. The connecting part is used to connect the fixing part and the limiting part. The limiting part extends along the width direction of the fin and spans multiple fins. A first limiting rib is connected to the limiting part. The first limiting rib is located between two adjacent fins.

2. The vehicle headlight radiator structure according to claim 1, characterized in that: The fins are U-shaped and include two longitudinally extending heat sinks and a laterally extending connecting piece. The connecting piece is used to connect to the substrate. A second limiting rib is also connected to the limiting portion, and the second limiting rib is located between the two heat sinks of each fin.

3. A vehicle headlight radiator structure according to claim 1 or 2, characterized in that: The limiting portion is located above the fins and spans all the fins. The first limiting rib extends downward to between two adjacent fins.

4. The vehicle headlight radiator structure according to claim 2, characterized in that: The limiting part is located above the fins and spans all the fins. The first limiting rib and the second limiting rib extend downward to the space between two adjacent fins and the two heat sinks of the same fin, respectively.

5. A vehicle headlight radiator structure according to claim 2 or 4, characterized in that: The first limiting rib and the second limiting rib are located at opposite ends of the limiting part.

6. The structure of a vehicle headlight radiator according to claim 1, characterized in that: The fixing plate is also connected to a third limiting rib, which is located on the left side of the leftmost fin and the right side of the rightmost fin.

7. The vehicle headlight radiator structure according to claim 6, characterized in that: The third limiting rib is connected to the connecting part.

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