Thick-wall heat dissipation integrated piece and vehicle lamp module using same

Abstract

The utility model discloses a thick-wall heat dissipation integrated piece and a car lamp module using the same. The thick-wall heat dissipation integrated piece comprises a thick-wall piece and a heat dissipation device which are integrally formed in an injection molding mode. Wherein the thick-wall piece is made of a light-transmitting material, and the radiator is made of a non-light-transmitting material; a light-in surface and a light-out surface are designed on the thick-wall part, and are distributed on two opposite end surfaces of the thick-wall part; the radiator comprises a connecting part used for being connected with the thick-wall piece and a fin part connected with the end, away from the thick-wall piece, of the connecting part, and the connecting part is connected with the upper end wall, adjacent to the light inlet face, of the thick-wall piece so that the light inlet face of the thick-wall piece can face the fin part. A mounting face is formed at the end, facing the light incident face of the thick-wall piece, of the fin part.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a thick-walled heat dissipation integrated component and an automotive lighting module using the same. Background Technology

[0002] With the widespread use of headlights equipped with daytime running lights, the internal space and heat dissipation issues of these lamps urgently need to be optimized and resolved. Daytime running lights generate a lot of heat while providing illumination, and effective cooling measures are necessary to ensure the lifespan of the lamps.

[0003] In response, existing technologies typically use high thermal conductivity aluminum components as heat sinks. However, aluminum components have problems such as high manufacturing costs and large weight. Furthermore, for heat sinks made of metal, a suitable fastening structure is needed to assemble the thick-walled light guide. For example, CN211502619U discloses an LED thick-walled light guide corner lamp, in which the heat sink and the thick-walled light guide are connected by screws.

[0004] While existing technologies, such as the separate assembly of thick-walled components and radiators, can meet the usage requirements, further structural optimization is needed to simplify the assembly process and reduce production costs. Utility Model Content

[0005] The primary objective of this invention is to provide a thick-walled heat dissipation integrated component to address the technical problem of simplifying its overall structure.

[0006] The second objective of this invention is to provide a vehicle lighting module to solve the technical problem of simplifying its overall structure.

[0007] The thick-walled heat dissipation integrated component of this utility model is implemented as follows:

[0008] A thick-walled heat dissipation integrated component includes: a thick-walled component and a heat sink integrally injection molded; wherein...

[0009] The thick-walled component is made of a light-transmitting material, while the heat sink is made of a non-light-transmitting material;

[0010] The thick-walled component is designed with an incident light surface and an exit light surface, which are distributed on two oppositely arranged end faces of the thick-walled component; and

[0011] The heat sink includes a connecting portion for connecting to a thick-walled member and a finned portion connected to the end of the connecting portion away from the thick-walled member, and the connecting portion is connected to the upper end wall of the thick-walled member adjacent to the light-incident surface so that the light-incident surface of the thick-walled member faces the finned portion.

[0012] The end of the fin portion facing the light-incident surface of the thick-walled member has a mounting surface.

[0013] In an optional embodiment of this utility model, the thick-walled member adopts a flat structure; and

[0014] The connecting part includes a first base and a second base that are bent and connected together, wherein the first base is used to connect with the thick-walled part, and the second base is used to connect with the fin part.

[0015] In an optional embodiment of this invention, the connecting portion is adapted to block light from the area above the incident light surface.

[0016] In an optional embodiment of this invention, the light-incident surface and the light-exit surface of the thick-walled member are parallel to each other; and

[0017] The light-incident surface of the thick-walled component is inclined relative to the mounting surface, and the lateral distance between the end of the thick-walled component connected to the first substrate and the mounting surface is smaller than the lateral distance between the end of the light-incident surface away from the first substrate and the mounting surface.

[0018] In an optional embodiment of this invention, an obtuse angle is formed between the first substrate and the second substrate; and

[0019] The end face of the first substrate facing the mounting surface is flush and coplanar with the light-incident surface; or

[0020] The end face of the first substrate facing the mounting surface protrudes from the light-incident surface.

[0021] In an optional embodiment of this invention, the light-incident surface of the thick-walled member is a free-form surface; and

[0022] The light-emitting surface of the thick-walled component is provided with optical patterns.

[0023] In an optional embodiment of this utility model, the end faces of the thick-walled component, except for the light-incident surface and the light-exit surface, are designed with a textured surface for weakening stray light.

[0024] In an optional embodiment of this invention, the mounting surface is provided with a recessed groove for applying thermal grease.

[0025] In an optional embodiment of this invention, the finned portion is designed with a plurality of heat dissipation fins arranged in an array; and

[0026] Each of the heat dissipation fins has a rough textured surface.

[0027] The vehicle headlight module of this utility model is implemented as follows:

[0028] A vehicle lighting module includes: the aforementioned thick-walled heat sink and an LED module for fixing to the mounting surface of the heat sink.

[0029] By adopting the above technical solution, the present invention has the following beneficial effects: The thick-walled heat dissipation integrated component and the vehicle lamp module using it are integrally injection molded. Under the premise of simultaneously meeting optical performance and heat dissipation performance, on the one hand, the weight of the overall structure can be reduced to meet the lightweight requirements of the vehicle lamp module. On the other hand, the structure can be simplified, so that the thick-walled component and the heat dissipation have a high degree of integration, which facilitates production and assembly and reduces costs. Attached Figure Description

[0030] Figure 1 This is a first-view structural schematic diagram of the vehicle headlight module of this utility model;

[0031] Figure 2 This is a schematic diagram of the second-view structure of the vehicle headlight module of this utility model;

[0032] Figure 3 This is a schematic diagram of the light emitted by the light source of the vehicle headlight module of this utility model.

[0033] In the figure: 1. Thick-walled component; 2. Finned part; 3. LED module; 4. Light source; 5. Positioning rivet; 6. Heat dissipation fins; 7. Rough texture structure; 8. Optical pattern; 9. Large end face; 10. Light incident surface; 11. Thermal grease; 12. First substrate; 13. Second substrate. Detailed Implementation

[0034] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0035] Example 1:

[0036] Please see Figures 1 to 3 As shown, this embodiment provides a thick-walled heat dissipation integrated component, including: an integrally injection-molded thick-walled component 1 and a heat sink; wherein the thick-walled component 1 is made of a translucent material, and the heat sink is made of an opaque material. For example, in an optional case, the thick-walled component 1 is made of, for example, but not limited to, PC or PMMA material, and the heat sink is made of a plastic with a high thermal conductivity, such as, but not limited to, alumina-filled PA6 or PP, and the color is opaque dark gray or matte black.

[0037] More specifically, the first example is the thick-walled component 1. Taking the accompanying drawings as an example of an optional and easily processed case, the thick-walled component 1 adopts a flat structure with a light-incident surface 10 and a light-exit surface designed on it. The light-incident surface 10 and the light-exit surface are distributed on two oppositely arranged end faces of the thick-walled component 1. For the flat structure, it generally includes two oppositely arranged end faces with slightly larger areas and four end faces with relatively smaller areas connected in the circumferential direction. At this time, the light-incident surface 10 and the light-exit surface are located on one of the pair of end faces with smaller surface areas. In the following description of the embodiments, the two end faces with slightly larger areas are named "large end faces 9".

[0038] Based on the above structure, furthermore, from the perspective of optimizing optical effects, in one optional embodiment, the light-incident surface 10 of the thick-walled member 1 is a freeform surface; and the light-exiting surface of the thick-walled member 1 is provided with an optical pattern 8, which is, for example, but not limited to, a rhombus, a corn kernel, or a square. In addition, the end faces of the thick-walled member 1 other than the light-incident surface 10 and the light-exiting surface are designed with a texture to weaken stray light, thereby optimizing the optical effect.

[0039] Secondly, the heat sink includes a connecting portion for connecting to the thick-walled member 1 and a fin portion 2 connected to the end of the connecting portion away from the thick-walled member 1. The connecting portion is connected to one of the "large end faces 9" of the thick-walled member 1 so that the light-incident surface 10 of the thick-walled member 1 faces the fin portion 2, and the "large end face 9" connected to the connecting portion is located above the light-incident surface 10. This makes the connecting portion block the light in the area above the light-incident surface 10, so that the connecting portion area can just serve as a local light-blocking structure of the thick-walled member 1.

[0040] Referring to the accompanying drawings, in one specific optional embodiment, the connecting portion includes a first base 12 and a second base 13 that are bent and connected together. The first base 12 is used to connect with the thick-walled member 1, and the second base 13 is used to connect with the finned portion 2. The finned portion 2 is designed with a plurality of heat dissipation fins 6 arranged in an array; and the surface of each heat dissipation fin 6 is provided with a rough textured structure 7 to increase the contact area between the heat dissipation structure and the air, thereby improving the overall heat dissipation performance.

[0041] Furthermore, in this embodiment, the light-incident surface 10 and the light-exit surface of the thick-walled member 1 are parallel to each other; and the light-incident surface 10 of the thick-walled member 1 is inclined relative to the mounting surface, and the lateral distance between the end of the thick-walled member 10 connected to the first substrate 12 and the mounting surface is smaller than the lateral distance between the end of the light-incident surface 10 away from the first substrate 12 and the mounting surface. Based on this, furthermore, an obtuse angle is formed between the first substrate 12 and the second substrate 13; and the end face of the first substrate 12 facing the mounting surface is flush with and coplanar with the light-incident surface 10; or the end face of the first substrate 12 facing the mounting surface protrudes from the light-incident surface 10.

[0042] Furthermore, it should be noted that, considering the need for the thick-walled heat dissipation integrated component of this embodiment to be assembled with the LED module 3 when applied in a specific automotive lighting module, a mounting surface is formed at the end of the fin portion 2 facing the light-incident surface 10 of the thick-walled component 1. Based on this, the light emitted by the light source 4 on the LED module 3 can be directed directly towards the light-incident surface 10. Here, in an optional embodiment, the mounting surface is provided with a recessed groove for applying thermal grease 11. This can accelerate the dissipation of heat generated during the use of the LED module 3.

[0043] In summary, for the thick-walled heat dissipation integrated component of this embodiment, the thick-walled component 1 and the heat sink are integrally injection molded. Under the premise of simultaneously satisfying optical performance and heat dissipation performance, on the one hand, the weight of the overall structure can be reduced to meet the lightweight requirements of the automotive lamp module using this thick-walled heat dissipation integrated component. On the other hand, the structure can be simplified, so that the thick-walled component 1 and the heat sink have a high degree of integration, which facilitates production and assembly and reduces costs.

[0044] Example 2:

[0045] Please see Figures 1 to 3 As shown, based on the thick-walled heat dissipation integrated component of the embodiment, this embodiment provides a vehicle light module, including: the thick-walled heat dissipation integrated component of embodiment 1 and an LED module 3 for fixing on the mounting surface of the heat sink.

[0046] Based on the above, in order to improve the efficiency of assembling the LED module 3 onto the mounting surface, a positioning rivet 5 for fixing the LED module 3 is designed on the mounting surface.

[0047] Based on the above structure, the LED module 3 with light source 4 is fixed to the mounting surface of the heat sink by positioning rivets 5; the light source 4 is incident on the light-incident surface 10 of the thick-walled part 1 and emitted through the light-out surface with optical patterns 8 to achieve uniform lighting.

[0048] In summary, the headlight module of this embodiment not only achieves a lightweight effect, but also simplifies the assembly process during production, thus reducing the overall production cost of the headlight module.

[0049] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0050] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0054] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A thick-walled heat dissipation integrated component, characterized in that, include: One-piece injection molded thick-walled parts and heat sinks; in The thick-walled component is made of a light-transmitting material, while the heat sink is made of a non-light-transmitting material; The thick-walled component is designed with an incident light surface and an exit light surface, which are distributed on two oppositely arranged end faces of the thick-walled component; and The heat sink includes a connecting portion for connecting to a thick-walled member and a finned portion connected to the end of the connecting portion away from the thick-walled member, and the connecting portion is connected to the upper end wall of the thick-walled member adjacent to the light-incident surface so that the light-incident surface of the thick-walled member faces the finned portion. The end of the fin portion facing the light-incident surface of the thick-walled member has a mounting surface.

2. The thick-walled heat dissipation integrated component according to claim 1, characterized in that, The thick-walled component adopts a flat structure; and The connecting part includes a first base and a second base that are bent and connected together, wherein the first base is used to connect with the thick-walled part, and the second base is used to connect with the fin part.

3. The thick-walled heat dissipation integrated component according to claim 2, characterized in that, The connecting portion is adapted to block light from the area above the incident light surface.

4. The thick-walled heat dissipation integrated component according to claim 3, characterized in that, The light-incident surface and the light-exit surface of the thick-walled component are parallel to each other; and The light-incident surface of the thick-walled component is inclined relative to the mounting surface, and the lateral distance between the end of the thick-walled component connected to the first substrate and the mounting surface is smaller than the lateral distance between the end of the light-incident surface away from the first substrate and the mounting surface.

5. The thick-walled heat dissipation integrated component according to any one of claims 2 to 4, characterized in that, An obtuse angle is formed between the first substrate and the second substrate; and The end face of the first substrate facing the mounting surface is flush and coplanar with the light-incident surface; or The end face of the first substrate facing the mounting surface protrudes from the light-incident surface.

6. The thick-walled heat dissipation integrated component according to claim 1, characterized in that, The light-incident surface of the thick-walled component is a free-form surface; and The light-emitting surface of the thick-walled component is provided with optical patterns.

7. The thick-walled heat dissipation integrated component according to claim 1, characterized in that, The thick-walled component has textured surfaces on all end faces except the light-incident and light-exit surfaces to weaken stray light.

8. The thick-walled heat dissipation integrated component according to claim 1, characterized in that, The mounting surface is provided with a recessed groove for applying thermal grease.

9. The thick-walled heat dissipation integrated component according to claim 1, characterized in that, The finned portion is designed with multiple heat dissipation fins arranged in an array; and Each of the heat dissipation fins has a rough textured surface.

10. A vehicle headlight module, characterized in that, include: The thick-walled heat dissipation integrated component as described in any one of claims 1 to 9 and the LED module for fixing to the mounting surface of the heat sink.

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