Automobile headlamp and waterproof heat dissipation lampshade thereof

Abstract

The utility model discloses an automobile headlamp and a waterproof heat dissipation lampshade thereof. The waterproof heat dissipation lampshade comprises a heat dissipation base and a heat dissipation cover fixedly connected with the heat dissipation base, a lens mounting hole is formed in the front end of the heat dissipation base, a cover mounting hole is formed in the upper portion of the rear end of the heat dissipation base, and a silica gel sealing ring is arranged at the cover mounting hole and used for achieving waterproof sealing connection of the heat dissipation cover and the heat dissipation base. And a lamp panel mounting surface, a reflection cup mounting surface and a light cutting mechanism mounting surface which are integrally formed with the radiating base are arranged in the rear end of the radiating base. A sealing ring pressing rib is arranged at the position, corresponding to the silica gel sealing ring, of the heat dissipation cover body. The lampshade is arranged to be of a split type structure, the waterproof requirement can be met, the installation convenience can be greatly improved, and later maintenance is easy. And the radiating base is integrally formed, so that the mounting precision is high, the thermal resistance is extremely low, and the radiating effect is excellent. The automobile headlamp is easy and convenient to install, easy to maintain, excellent in waterproof effect, heat dissipation effect and installation precision, beneficial to batch production and high in production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive headlights, in particular to an automotive headlamp and its waterproof and heat-dissipating lamp cover. Background Art

[0002] The existing automotive LED headlamps generally adopt a "barrel-type" lamp cover structure to achieve waterproofing. The "barrel-type" lamp cover structure causes components such as the lamp board, reflector cup, and light-cutting mechanism inside the lamp cover to be installed from the front end of the lamp cover. This not only makes installation inconvenient and fails to meet the position accuracy requirements between the lamp board, reflector cup, light-cutting mechanism, and glass lens, but also, due to the limitation of the overall lamp volume, the production operation efficiency is low, the light pattern consistency in mass production is poor, and the light pattern adjustment is difficult. Moreover, after installation, there is an additional layer of fault between the lamp board and the radiator, increasing the thermal resistance and resulting in unsatisfactory heat dissipation performance. Additionally, after complete installation, the glass lens and the "barrel-type" lamp cover are sealed and waterproofed by using a dot waterproof sealant, which is not conducive to later maintenance and increases the use cost.

[0003] It can be seen that the above-mentioned existing automotive headlamps obviously still have inconveniences and defects in terms of structure, method, and use, and thus urgently need to be further improved. How to create a new automotive headlamp and its waterproof and heat-dissipating lamp cover that can overcome the deficiencies of the existing "barrel-type" lamp cover. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a waterproof and heat-dissipating lamp cover for an automotive headlamp, which, by improving the lamp cover body into a heat-dissipating base and a heat-dissipating cover body structure, is waterproofly connected between the two through a silicone rubber seal ring, can not only meet the timely heat dissipation function but also the waterproof function, and is easy to install and maintain, thereby overcoming the deficiencies of the existing "barrel-type" lamp cover of automotive headlamps.

[0005] To solve the above technical problem, the utility model provides a waterproof and heat-dissipating lamp cover for an automotive headlamp, including a heat-dissipating base and a heat-dissipating cover body fixedly connected thereto. A lens mounting hole is provided at the front end of the heat-dissipating base, and a cover body mounting hole is provided at the upper part of the rear end thereof. A silicone rubber seal ring is provided at the cover body mounting hole for realizing the waterproof and sealed connection between the heat-dissipating cover body and the heat-dissipating base.

[0006] Further improvement: An integrally formed lamp board mounting surface and a reflector cup mounting surface are provided inside the rear end of the heat-dissipating base.

[0007] Further improvement: A light-cutting mechanism mounting surface integrally formed therewith is further provided at the front end of the lamp board mounting surface.

[0008] Further improvement: First positioning posts for positioning the lamp board mounting position are provided on the lamp board mounting surface.

[0009] For further improvement, second positioning posts for positioning the mounting position of the reflector cup are provided on the mounting surface of the reflector cup.

[0010] For further improvement, a breathable film is provided at the bottom end of the heat dissipation base.

[0011] For further improvement, a through hole for installing a waterproof gland is provided at the rear end of the heat dissipation base.

[0012] For further improvement, seal ring ribs are provided at positions corresponding to the silicone seal ring on the heat dissipation cover body, and the heat dissipation cover body and the heat dissipation base are fixedly connected by bolts.

[0013] As another improvement of the present utility model, the present utility model also provides an automotive headlamp including the above waterproof and heat dissipation lamp housing.

[0014] For further improvement, it further includes a glass lens connected to the lens mounting hole of the waterproof and heat dissipation lamp housing, and a lamp board, a reflector cup and a light cutoff mechanism installed inside the waterproof and heat dissipation lamp housing. The glass lens is installed at the lens mounting hole through a front decorative cover and is waterproofed through a dotting process.

[0015] After adopting such a design, the present utility model has at least the following advantages:

[0016] 1. The waterproof and heat dissipation lamp housing of the present utility model improves the existing "barrel-shaped" lamp housing, making it a split structure of a heat dissipation base and a heat dissipation cover body with a sealed connection, which can not only meet the waterproof requirements, but also greatly improve the installation convenience, is easy to maintain later, and overcomes the problems of inconvenient installation and unfavorable maintenance of the existing "barrel-shaped" lamp housing of automotive headlamps.

[0017] 2. It also integrally forms the lamp board mounting surface, the reflector cup mounting surface and the light cutoff mechanism mounting surface with the heat dissipation base. During use, by closely installing the lamp board with the lamp board mounting surface, it is beneficial to directly conduct the heat of the lamp beads to the base, which is beneficial to heat dissipation, ensures an extremely low thermal resistance, has excellent heat dissipation effect, and can also simplify the installation process and improve the installation efficiency.

[0018] 3. By providing positioning posts on the lamp board mounting surface and the reflector cup mounting surface, it can ensure the installation accuracy of the lamp board and the reflector cup, meet the requirements of light pattern consistency for mass production, and is also beneficial to the flexible adjustment of the light pattern.

[0019] 4. The automotive headlamp of the present utility model is easy to install and maintain, has good waterproof effect, heat dissipation effect and high installation accuracy, is beneficial to mass production, and has high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above is only an overview of the technical solution of the present utility model. In order to better understand the technical means of the present utility model, the following provides a more detailed description of the present utility model in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 is a schematic three-dimensional structure diagram of the headlamp of the present utility model Figure 1 .

[0022] Figure 2 is a schematic three-dimensional structure diagram of the headlamp of the present utility model Figure 2 .

[0023] Figure 3 is a schematic cross-sectional structure diagram of the headlamp of the present utility model.

[0024] Figure 4 is a schematic structure diagram of the headlamp of the present utility model after removing the heat dissipation cover.

[0025] Figure 5 is a schematic structure diagram of the heat dissipation base in the headlamp of the present utility model.

[0026] Figure 6 is a schematic outer structure diagram of the heat dissipation cover in the headlamp of the present utility model.

[0027] Figure 7 is a schematic side view of the structure of the heat dissipation cover in the headlamp of the present utility model.

[0028] Figure 8 is a schematic inner structure diagram of the heat dissipation cover in the headlamp of the present utility model.

[0029] Figure 9 is a schematic structure diagram of the silica gel sealing ring in the headlamp of the present utility model. Specific Embodiments

[0030] Hereinafter, exemplary embodiments of the present utility model will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model can be more thoroughly understood and the scope of the present utility model can be completely conveyed to those skilled in the art.

[0031] Referring to the attached Figures 1 to 3 As shown, the headlamp of this embodiment includes a waterproof and heat-dissipating lamp cover 1, a glass lens 2 provided at its front end, and an LED lamp board 3, a reflecting cup 4, and a light-cutting mechanism 5 provided inside the waterproof and heat-dissipating lamp cover 1.

[0032] In this embodiment, the waterproof and heat-dissipating lamp cover 1 is provided with a split structure, including a heat-dissipating base 11 and a heat-dissipating cover body 12 fixedly connected thereto, as shown in the appendix Figure 5 and 6 shown. A lens mounting hole 111 is provided at the front end of the heat-dissipating base 11, and a cover body mounting hole 112 is provided at the upper part of the rear end thereof. A silica gel sealing ring 13 is provided at the cover body mounting hole 112 for realizing the waterproof and sealed connection between the heat-dissipating cover body 12 and the heat-dissipating base 11. The silica gel sealing ring 13 is as shown in the appendix Figure 9 shown. It should be noted that in this application, the "front end" refers to the headlight irradiation direction, and the "rear end" refers to the direction opposite to the headlight irradiation direction.

[0033] In a preferred embodiment, as shown in the appendix Figure 5 shown, a lamp board mounting surface 113, a reflector cup mounting surface 114, and a light-cutting mechanism mounting surface 115 integrally formed therewith are provided inside the rear end of the heat-dissipating base 11. In this way, the lamp board 3, the reflector cup 4, and the light-cutting mechanism 5 can be installed through the large cover body mounting hole 112, and the lamp board 3 can be installed closely against its lamp board mounting surface 113, as shown in the appendix Figure 4 shown. It is not only convenient for installation but also conducive to later maintenance. And this integrally formed structure not only omits the production and installation steps of each mounting plate but also is conducive to the conduction of the heat of the lamp beads, and can directly conduct the heat of the lamp beads to the outside of the heat-dissipating base, achieving a better heat-dissipating effect.

[0034] In a more preferred embodiment, as shown in the appendix again Figure 5 shown, a first positioning post 31 for positioning the installation position of the lamp board 3 is provided on the lamp board mounting surface 113. A second positioning post 41 for positioning the installation position of the reflector cup 4 is provided on the reflector cup mounting surface 114. This positioning post can meet the installation accuracy of the lamp board 3 and the reflector cup 4, is conducive to the consistent light pattern of the automotive lamp, and is suitable for mass production.

[0035] In addition, as shown in the appendix Figure 3 shown, a breathable film 116 is further provided at the bottom end of the heat-dissipating base 11, which is conducive to the ventilation and heat dissipation inside the lamp cover. As shown in the appendix Figures 2 to 5 shown, a through hole 61 for installing a waterproof gland 6 is further provided at the rear end of the heat-dissipating base 11 for accessing the lamp body input wire.

[0036] As shown in the appendix Figures 6 to 8As shown in the figure, in this embodiment, a seal rib 121 is provided at a position corresponding to the silicone rubber seal ring 13 on the heat dissipation cover 12 to ensure the sealed connection between the heat dissipation cover 12 and the heat dissipation base 11. When installing the heat dissipation cover 12, the seal rib 121 on the heat dissipation cover 12 is pressed against the silicone rubber seal ring 13 correspondingly, and then fixedly connected by bolts, which can not only ensure the waterproof effect, but also facilitate disassembly and maintenance of the inside of the lamp body.

[0037] In this embodiment, the glass lens 2 is installed at the lens mounting hole 111 through the front decorative cover 21, and waterproofing is achieved through the dispensing process. Then, the front end part of the automotive headlamp achieves waterproofing through the dispensing process, the rear end part of the automotive headlamp achieves waterproofing through the silicone rubber seal ring, and the incoming line part achieves waterproofing through the waterproof gland 6, with an excellent overall waterproof effect.

[0038] The automotive headlamp of the present utility model, through the improvement of the lamp cover, can not only effectively meet the waterproof requirements, but also greatly improve the installation convenience and the convenience of later maintenance. Also, through the integral molding of the heat dissipation base, the installation process of the automotive lamp is simplified, the production efficiency is improved, the heat conduction of the lamp beads is more facilitated, a very low thermal resistance is ensured, the heat dissipation effect is excellent, and the installation accuracy of the lamp board is high, meeting the requirements of the light pattern consistency for mass production. Moreover, it is conducive to the flexible adjustment of the light pattern, suitable for mass production, and has a high production efficiency.

[0039] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Any simple modifications, equivalent changes or decorations made by those skilled in the art using the disclosed technical content all fall within the protection scope of the present utility model.

Claims

1. A waterproof heat dissipation lampshade for a car headlamp, characterized in that: It includes a heat dissipation base and a heat dissipation cover body fixedly connected thereto, the front end of the heat dissipation base is provided with a lens mounting hole, the upper part of the rear end is provided with a cover body mounting hole, and the cover body mounting hole is provided with a silicone sealing ring for realizing a waterproof and sealed connection between the heat dissipation cover body and the heat dissipation base.

2. The waterproof heat dissipation lampshade of the automobile headlamp according to claim 1, characterized in that: A lamp panel mounting surface and a reflective cup mounting surface integrally formed therewith are provided inside the rear end of the heat dissipation base.

3. The waterproof heat dissipation lampshade of the automobile headlamp according to claim 2, characterized in that: The front end of the lamp panel mounting surface is also provided with a light cutting mechanism mounting surface integrally formed therewith.

4. The waterproof heat dissipation lampshade of the automobile headlamp according to claim 3, characterized in that: The lamp board installation surface is provided with a first positioning column for locating the installation position of the lamp board.

5. The waterproof heat dissipation lampshade of the automobile headlamp according to claim 4, characterized in that: The reflective cup mounting surface is provided with a second positioning column for locating the reflective cup mounting position.

6. The waterproof heat dissipation lampshade of the automobile headlamp according to claim 2, characterized in that: A breathable membrane is arranged at the bottom end of the heat dissipation base.

7. The waterproof heat dissipation lampshade of the automobile headlamp according to claim 2, characterized in that: A through hole for installing a waterproof cable gland is provided at the rear end of the heat dissipation base.

8. The waterproof heat dissipation lampshade of the automobile headlamp according to any one of claims 1 to 7, characterized in that: The heat dissipation cover is provided with a sealing ring pressing rib at a position corresponding to the silicone sealing ring, and the heat dissipation cover is fixedly connected to the heat dissipation base by bolts.

9. An automobile headlamp, characterized in that: A waterproof heat dissipation lampshade for an automobile headlamp comprising any one of claims 1 to 8.

10. The vehicle headlamp according to claim 9, characterized in that: It also includes a glass lens connected to the lens mounting hole of the waterproof heat dissipation lampshade, and a lamp panel, a reflective cup and a light cutting mechanism installed inside the waterproof heat dissipation lampshade. The glass lens is installed at the lens mounting hole through a front decorative cover, and waterproofing is achieved through a glue dispensing process.

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