Car lamp sealing structure
By using a design of serrated grooves and serrated meshing, as well as multi-stage sealing grooves, the problem of insufficient sealing of vehicle lights is solved, the bonding strength and sealing effect between the lamp cover and the lamp housing are enhanced, the service life of vehicle lights is extended, and driving safety is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-31
AI Technical Summary
Existing automotive headlight sealing structures are prone to water leakage and fogging, affecting sealing performance and service life.
The design employs a sawtooth groove and sawtooth meshing, combined with multi-stage sealing grooves and bolt fixing connections, to enhance the bonding strength and sealing effect between the lampshade and the lamp housing.
It improves the sealing between the lamp cover and the lamp housing, preventing water vapor from entering, extending the life of the vehicle lamp, and improving driving safety.
Smart Images

Figure CN224065310U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of automotive lighting technology, and in particular relates to a sealing structure for automotive lights. Background Technology
[0002] Automotive lights primarily serve the functions of illumination and signaling in automobiles. With the rapid development of the automotive industry, automotive lights have an increasingly significant impact on the functionality and appearance of vehicles. They are both functional and aesthetic components, greatly enhancing the overall appearance of the vehicle and even becoming a hallmark of a car manufacturer's individuality. They are a striking decorative element and a distinguishing feature between different models. Water ingress into automotive lights significantly impacts both the function and appearance of the vehicle, directly affecting lighting and signaling performance, and severely impairing the driver's visibility and judgment of surrounding conditions. The sealing performance of automotive lights determines their waterproof and dustproof capabilities, which is one of the key indicators affecting the overall performance of the vehicle.
[0003] However, many drivers have encountered the problem of fogging inside car headlights during use. Usually, the headlight housing and the headlight cover are directly connected and fixed by a sealing ring. If this structure is not sealed well, water leakage will usually occur, resulting in water fog inside the headlight and damage to the internal parts of the headlight, thus affecting the lifespan of the headlight. Utility Model Content
[0004] The purpose of this utility model is to provide a vehicle lamp sealing structure to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A vehicle lamp sealing structure includes a lamp housing and a lamp cover that docks with it. The open sidewall of the lamp housing is provided with a serrated groove along its path direction. The open sidewall of the lamp housing is provided with a first sealing groove and a second sealing groove on the inner and outer sides of the serrated groove, respectively. A sleeve is provided at each of the four corners of the lamp housing. The open sidewall of the lamp cover is provided with serrations distributed corresponding to the serrated groove, and the serrations and the serrated groove mesh with each other. The open sidewall of the lamp cover is provided with sealing protrusions distributed corresponding to the first sealing groove and the second sealing groove on the inner and outer sides of the serrations. A strip is provided at each of the four corners of the lamp cover, corresponding to the strip. The strip and the sleeve are fixedly connected by bolts.
[0006] Preferably, the serrated grooves are distributed in a frame shape along the path of the lamp housing opening, and the shape of the serrations is the same as that of the serrated grooves.
[0007] Preferably, both the first sealing groove and the second sealing groove are arranged in a frame shape, and the size of the sealing protrusion matches the size of the first sealing groove and the second sealing groove.
[0008] Preferably, the insert has a socket with a size that matches the size of the insert strip, and the socket has an open-end and closed-end structure.
[0009] Preferably, the inner walls of the adjacent sides of the socket are provided with trapezoidal strips, and the outer walls of the adjacent sides of the strips are provided with trapezoidal grooves corresponding to the trapezoidal strips, and the size of the trapezoidal strips matches the size of the trapezoidal grooves.
[0010] Preferably, the end of the insert sleeve away from the opening is provided with a threaded hole, and the end of the insert bar is provided with a through-hole, the diameter of which matches the diameter of the threaded hole and the bolt.
[0011] The vehicle lamp sealing structure of this utility model has the following advantages:
[0012] 1. This utility model utilizes the interlocking of serrations and serrated grooves. When the lampshade and lamp housing are joined, the serrations and serrated grooves mesh together, and the lampshade and lamp housing are joined together by an inlay method. This increases the effective contact area between the lampshade and lamp housing, improves the bonding strength between the lampshade and lamp housing, makes the bonding tighter, increases leakage resistance, makes leakage difficult, and creates multiple blocking surfaces between the lampshade and lamp housing, thus improving the sealing effect.
[0013] 2. This utility model provides sealing protrusions and sealing grooves on both the inner and outer sides of the serrated groove, forming a multi-level sealing layer between the lamp cover and the lamp housing, which further improves the sealing effect, effectively prevents water vapor in the air from entering the inner cavity of the lamp housing, effectively improves the driving safety factor, and extends the service life of the vehicle lamp.
[0014] 3. The fit between the insert and the sleeve allows for a fixed connection between the lampshade and the lamp housing. The fit between the threaded hole and the insertion hole, along with the action of the bolts, makes the connection between the lampshade and the lamp housing more secure and tight, and facilitates disassembly and assembly. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the lamp housing in this utility model;
[0018] Figure 3 for Figure 2 Front view;
[0019] Figure 4 for Figure 3 Enlarged view of A in the middle;
[0020] Figure 5 This is a schematic diagram of the structure of the lampshade in this utility model.
[0021] The markings in the diagram are as follows: 1. Lamp housing; 2. Lamp cover; 3. Insert sleeve; 4. Serrated groove; 5. First sealing groove; 6. Second sealing groove; 7. Insert; 8. Trapezoidal strip; 9. Threaded hole; 10. Serrated edge; 11. Sealing protrusion; 12. Insert strip; 13. Trapezoidal groove; 14. Insert hole. Detailed Implementation
[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a communication 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 embodiment of the invention according to the specific circumstances.
[0026] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0027] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a vehicle lamp sealing structure according to this utility model.
[0028] like Figure 1-5 As shown, this utility model discloses a vehicle lamp sealing structure, including a lamp housing 1 and a lamp cover 2 that docks with it. The opening sidewall of the lamp housing 1 is provided with a serrated groove 4 along its path direction. A first sealing groove 5 and a second sealing groove 6 are respectively provided on the inner and outer sides of the opening sidewall of the lamp housing 1 within the serrated groove 4. Insert sleeves 3 are provided at each of the four corners of the lamp housing 1. The opening sidewall of the lamp cover 2 is provided with serrations 10 corresponding to the serrated groove 4, and the serrations 10 mesh with the serrated groove 4. The serrated groove 4 is distributed in a frame shape along the path direction of the opening of the lamp housing 1. The serration 10 has the same shape as the serration groove 4. Through the cooperation between the serration 10 and the serration groove 4, when the lamp cover 2 and the lamp housing 1 are connected, the serration 10 will interlock with the serration groove 4. The lamp cover 2 and the lamp housing 1 are joined together by an inlay method, which increases the effective contact area between the lamp cover 2 and the lamp housing 1, improves the bonding strength between the lamp cover 2 and the lamp housing 1, makes the bonding tighter, increases the leakage resistance, makes it difficult for leakage to occur, and forms multiple blocking surfaces between the lamp cover 2 and the lamp housing 1, thus improving the sealing effect.
[0029] The opening sidewall of the lamp cover 2 is provided with sealing protrusions 11 on both the inner and outer sides of the serration 10, corresponding to the first sealing groove 5 and the second sealing groove 6. The first sealing groove 5 and the second sealing groove 6 are both distributed in a frame shape, and the size of the sealing protrusions 11 matches the size of the first sealing groove 5 and the second sealing groove 6. By providing sealing protrusions 11 and sealing grooves on both the inner and outer sides of the serration groove 4, a multi-level sealing layer is formed between the lamp cover 2 and the lamp housing 1, which further improves the sealing effect, effectively prevents water vapor in the air from entering the inner cavity of the lamp housing 1, effectively improves the driving safety factor, and extends the service life of the vehicle lamp.
[0030] At each of the four corners of the lampshade 2, there are insert strips 12 corresponding to the insert sleeves 3, and the insert strips 12 and insert sleeves 3 are fixedly connected by bolts. The insert sleeve 3 has an opening 7 whose size matches the insert strip 12, and the opening 7 is a one-end open and one-end closed structure. Through the cooperation between the insert strip 12 and the insert sleeve 3, the lampshade 2 and the lamp housing 1 can be fixedly connected. Trapezoidal strips 8 are provided on the inner walls of adjacent sides of the opening 7, and trapezoidal grooves 13 are provided on the outer walls of adjacent sides of the insert strip 12, corresponding to the trapezoidal strips 8, and the size of the trapezoidal strips 8 matches the size of the trapezoidal grooves 13. The cooperation between the trapezoidal strips 8 and the trapezoidal grooves 13 makes the connection between the insert strip 12 and the insert sleeve 3 more secure and tight. The end of the insert 3 away from the opening is provided with a threaded hole 9, and the end of the insert 12 is provided with a through hole 14. The diameter of the through hole 14 matches the diameter of the threaded hole 9 and the bolt. Through the cooperation between the threaded hole 9 and the through hole 14, and under the action of the bolt, the connection between the lamp cover 2 and the lamp housing 1 is more secure and tight, and it is easy to disassemble and assemble.
[0031] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A vehicle lamp seal structure characterized by: The utility model provides a lamp shell (1) and the lamp shade (2) of butt joint with it, the opening side wall of lamp shell (1) is provided with sawtooth groove (4) along its path direction, and the opening side wall of lamp shell (1) is provided with first sealing groove (5) and second sealing groove (6) respectively on the inside and outside of sawtooth groove (4), the four corners of lamp shell (1) are provided with bushing (3), the opening side wall of lamp shade (2) is provided with sawtooth (10) corresponding distribution with sawtooth groove (4), and sawtooth (10) and sawtooth groove (4) are engaged with each other, the opening side wall of lamp shade (2) is provided with sealing convex edge (11) corresponding distribution with first sealing groove (5) and second sealing groove (6) on the inside and outside of sawtooth (10), the four corners of lamp shade (2) are provided with insertion strip (12) corresponding distribution with bushing (3), and insertion strip (12) and bushing (3) are connected through bolt fixedly.
2. The vehicle lamp sealing structure of claim 1, wherein: The sawtooth groove (4) is distributed in the path direction of the opening of the lamp shell (1) in a frame shape, and the shape of the sawtooth (10) is the same as that of the sawtooth groove (4).
3. The vehicle lamp sealing structure of claim 1, wherein: The first sealing groove (5) and the second sealing groove (6) are both distributed in a frame shape, and the size of the sealing convex edge (11) is consistent with that of the first sealing groove (5) and the second sealing groove (6).
4. The vehicle lamp sealing structure of claim 1, wherein: The bushing (3) is provided with a socket (7) with a size consistent with that of the insertion strip (12) inside, and the socket (7) is of an open-end closed structure.
5. A vehicle lamp sealing structure according to claim 4, characterized in that: The adjacent two inner walls of the socket (7) are both provided with trapezoidal strips (8), the adjacent two outer walls of the insertion strip (12) are both provided with trapezoidal grooves (13) corresponding to the trapezoidal strips (8), and the size of the trapezoidal strips (8) is consistent with that of the trapezoidal grooves (13).
6. The vehicle lamp sealing structure of claim 1, wherein: The bushing (3) is provided with a threaded hole (9) away from the opening end, the end of the insertion strip (12) is provided with a plug hole (14) penetrating the insertion strip (12), and the diameter of the plug hole (14) is consistent with that of the threaded hole (9) and the bolt.