Automotive rearview lamp housing

Abstract

The utility model belongs to the technical field of automobile parts, provide a kind of automobile rearview lamp shell.The utility model realizes preliminary accurate positioning by the positioning connecting column and installation positioning hole of character-shaped distribution, final fastening is carried out again through bolt, and it is combined with the elastic support of connecting reinforcement grid piece and flexible protruding part, formed a comprehensive connection structure by rigid positioning, elastic support and bolt locking, based on above structural design, not only can achieve the nondestructive disassembly of lamp shell and lampshade, the maintenance of rearview lamp assembly is facilitated, and the connection stiffness and anti-vibration performance of lamp shell and lampshade are greatly improved;The circumferential inner side wall of lampshade is constructed into the inclined pressing surface capable of pressing sealing ring, at the same time, the circumferential inner side wall of lampshell and the inclined pressing surface of lampshade are adapted to each other, form bevel cooperation, based on above design, more uniform, more reliable circumferential sealing can be realized.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically, it relates to a rearview lamp housing. Background Technology

[0002] The rearview lights of a car, also known as taillight assemblies, mainly consist of a housing and the taillights, brake lights, and other structures integrated within the housing. The housing is the main structural component and external cover of the taillight assembly, serving as the basic frame for fixing and supporting all internal optical components. It mainly comprises two parts: the lamp housing and the lamp cover. In existing technologies, the mainstream method for connecting the lamp housing and the lamp cover is to use a special adhesive. Specifically, a single-component or two-component polyurethane (PU) sealant or silicone is evenly applied to the sealing groove of the lamp housing using an automated robotic dispensing device. Then, the lamp cover and the lamp housing are precisely aligned and pressed together. After the adhesive has fully cured, it forms an elastic and permanent sealing layer. Although this method provides excellent sealing performance, once the adhesive has cured, the lamp cover cannot be disassembled without damage. If the lamp cover is damaged, the entire assembly needs to be replaced, which is not only extremely inconvenient to repair but also has high maintenance costs. Utility Model Content

[0003] The purpose of this utility model is to provide a car rearview lamp housing to solve the technical problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A rearview lamp housing includes a lamp housing and a lamp cover. The lamp housing and the lamp cover together form a cavity for mounting a light source. At least three positioning connecting posts arranged in a triangular pattern are provided on the end face of the lamp cover facing the mounting surface of the lamp housing. The lamp housing has mounting positioning holes that correspond to and engage with the positioning connecting posts. A connecting reinforcement mesh protruding towards the lamp housing is also provided below the edge of the mounting surface of the lamp cover. Multiple flexible protrusions that press against the connecting reinforcement mesh are provided on the inner wall of the lamp housing. A sealing groove is formed on the mounting surface of the lamp housing, and a sealing ring is provided within the sealing groove. The circumferential inner sidewall of the lamp cover is constructed as an inclined pressing surface capable of pressing the sealing ring. The circumferential inner sidewall of the lamp housing and the inclined pressing surface of the lamp cover are adapted to each other to form an inclined fit.

[0005] Preferably, the connecting reinforcing mesh is a mesh structure composed of crisscrossing reinforcing ribs, and the mesh structure is integrally injection molded with the lampshade.

[0006] Preferably, the flexible protrusion includes a rigid base and an elastomer cap, the elastomer cap covering the outside of the rigid base and making line or point contact with the connecting reinforcement mesh.

[0007] Preferably, the end of the positioning connecting column is provided with an internal threaded hole, and the lamp housing is provided with a bolt through hole on the back corresponding to the mounting positioning hole; during assembly, the lamp housing and lamp cover are fastened together by passing a bolt through the bolt through hole and screwing it into the internal threaded hole.

[0008] Preferably, an elastic compensation washer is provided at the bottom of the internal threaded hole.

[0009] Preferably, the inner side of the inclined pressing surface is a wavy curved surface, and the cross-sectional shape of the sealing ring matches the wavy curved surface.

[0010] Compared with the prior art, the present invention has the following beneficial effects: (1) This utility model achieves primary precise positioning through the positioning connecting columns and mounting positioning holes distributed in a triangular pattern, and then finally tightens them with bolts. Combined with the elastic support of the connecting reinforcing mesh and the flexible protrusion, a comprehensive connection structure consisting of rigid positioning, elastic support and bolt locking is formed. Based on the above structural design, not only can the lamp housing and lamp cover be disassembled without damage, which is convenient for the maintenance of the rearview lamp assembly, but also the connection rigidity and vibration resistance of the lamp housing and lamp cover are greatly improved.

[0011] (2) In this utility model, the circumferential inner wall of the lamp cover is constructed as an inclined pressing surface that can press the sealing ring. At the same time, the circumferential inner wall of the lamp housing and the inclined pressing surface of the lamp cover are adapted to each other to form an inclined surface fit. Based on the above design, a more uniform and reliable circumferential seal can be achieved.

[0012] (3) In this utility model, a flexible protrusion is used between the lamp housing and the lamp cover and the connecting reinforcement mesh, which can absorb and dissipate vibration energy and effectively reduce noise and fatigue risk.

[0013] (4) In this utility model, the bottom of the positioning connecting column is provided with an elastic compensation washer, which can effectively prevent the bolt from loosening under vibration. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is an exploded view diagram of the present invention.

[0016] Figure 3 This is a cross-sectional schematic diagram of the positioning connecting column in this utility model.

[0017] Figure 4 This is a schematic diagram of the flexible protrusion in this utility model.

[0018] Figure 5This is a side view of the lampshade in this utility model.

[0019] The corresponding names of the attached figures are as follows: 1-lamp housing, 2-lamp cover, 3-cavity, 4-positioning connecting post, 41-internal threaded hole, 42-elastic compensation washer, 5-mounting positioning hole, 6-connecting reinforcing mesh, 7-flexible protrusion, 71-rigid base, 72-elastic cap, 8-sealing groove, 9-sealing ring; 11-inclined mating surface; 21-inclined pressing surface. Detailed Implementation

[0020] To enable those skilled in the art to have a clearer understanding of this utility model, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described below are merely illustrative of this utility model and facilitate understanding. The technical solutions provided by this utility model are not limited to those provided in the following embodiments, nor should they limit the scope of protection of this utility model.

[0021] Example like Figures 1-5 As shown, this embodiment provides a car rearview lamp housing, which is mainly composed of a lamp housing 1 and a lamp cover 2 connected by bolts (not shown in the figure). The two form a sealed cavity 3 for installing light sources such as LED modules.

[0022] The mounting surface of the lampshade 2 (i.e., the side facing the lamp housing during assembly) has three positioning connecting posts 4 arranged in a triangular pattern. Specifically, one positioning connecting post 4 is provided on the left side of the lampshade, and two positioning connecting posts 4 are provided on the right side; correspondingly, the lamp housing 1 has mounting positioning holes 5. The end of the positioning connecting post 4 has an internal threaded hole 41. During assembly, the positioning connecting post 4 is first inserted into the mounting positioning hole 5 to achieve initial positioning; then, a bolt is passed through the bolt through hole from the back of the lamp housing 1 and screwed into the internal threaded hole 41 at the end of the positioning connecting post 4 to securely lock the two together. To improve the anti-loosening performance, an elastic compensation washer 42 (such as a spring washer) can be added to the bottom of the internal threaded hole.

[0023] In this embodiment, an annular sealing groove 8 is formed on the edge of the lamp housing 1, i.e., on the inclined mating surface 11, and a sealing ring 9 is installed inside the sealing groove 8. The lamp cover 2 has a concave structure, and its four edges are inclined (inclined outward relative to the lamp cover). That is, the circumferential inner wall of the lamp cover 2 is designed as an inclined pressing surface 12, which is adapted to the inclined mating surface 11 (inclined inward relative to the lamp housing) of the edge of the lamp housing 1 to form an inclined mating structure; the positioning connecting post 4 is set inside the lamp cover 2. When the bolt is tightened, this inclined mating structure will force the sealing ring 9 to be uniformly compressed, forming a reliable seal. As a more preferred embodiment, the inner side of the inclined pressing surface 21 (the part of the inclined pressing surface 21 corresponding to the sealing ring 9 after assembly) is a wavy curved surface, and the cross-sectional shape of the sealing ring 9 matches the wavy curved surface. After assembly, the wavy curved surface of the inclined pressing surface 21 and the sealing ring 9 can form a more complex and reliable sealing line.

[0024] A raised connecting reinforcement mesh 6 is integrally injection molded below the edge of the mounting surface of the lampshade 2. With this design, when the inclined pressing surface of the lampshade 2 presses against the inclined mating surface 11 of the lamp housing 1, the connecting reinforcement mesh 6 is placed inside the lamp housing 1 and abuts against its inner wall. In this embodiment, the connecting reinforcement mesh 6 is a mesh structure composed of crisscrossing reinforcing ribs, and this mesh structure is integrally injection molded with the lampshade. Correspondingly, multiple flexible protrusions 7 are fixed on the inner wall of the lamp housing 1. Preferably, the flexible protrusions 7 consist of a rigid base 71 and an elastic cap 72 covering it, with the rigid base 71 being an integral structure with the lamp housing 1. When the lamp housing 1 and the lampshade 2 are closed, the connecting reinforcement mesh 6 will tightly press against these flexible protrusions 7, effectively providing cushioning and vibration reduction.

[0025] The assembly process of this utility model is as follows: First, the sealing ring 9 is installed into the sealing groove 8 of the lamp housing 1; then, the positioning connecting post 4 of the lamp shade 2 is aligned with the mounting positioning hole 5 of the lamp housing 1 and inserted to complete the initial positioning; finally, a bolt 44 is passed through the bolt through hole from the back of the lamp housing 1 and screwed into the internal thread hole of the positioning connecting post 4 and tightened to the specified torque. During this process, the connecting reinforcing mesh 6 is pressed against the flexible protrusion 7, and the inclined pressing surface 21 of the lamp shade 2 presses against the sealing ring 9, thereby completing the assembly of the entire housing.

[0026] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A rearview lamp housing for automobiles, comprising a lamp housing (1) and a lamp cover (2), wherein the lamp housing (1) and the lamp cover (2) together enclose a cavity (3) for mounting a light source, characterized in that, At least three positioning connecting posts (4) arranged in a triangular pattern are provided on the end face of the mounting surface of the lamp cover (2) facing the lamp housing (1). The lamp housing (1) is provided with mounting positioning holes (5) that are inserted and matched one-to-one with the positioning connecting posts (4). A ring of connecting reinforcing mesh (6) protruding towards the lamp housing (1) is also provided below the edge of the mounting surface of the lamp cover (2). Multiple flexible protrusions (7) that are pressed and matched with the connecting reinforcing mesh (6) are provided on the inner wall of the lamp housing (1). A sealing groove (8) is provided on the mounting surface of the lamp housing (1). A sealing ring (9) is provided in the sealing groove (8). The circumferential inner sidewall of the lamp cover (2) is constructed as an inclined pressing surface (21) that can press the sealing ring (9). The circumferential inner sidewall of the lamp housing (1) and the inclined pressing surface of the lamp cover (2) are adapted to each other to form an inclined surface fit.

2. The automotive rearview lamp housing according to claim 1, characterized in that: The connecting reinforcement mesh (6) is a mesh structure composed of intersecting reinforcing ribs, and the mesh structure is integrally injection molded with the lampshade (2).

3. The automotive rearview lamp housing according to claim 2, characterized in that: The flexible protrusion (7) includes a rigid base (71) and an elastomer cap (72), the elastomer cap (72) covering the outside of the rigid base (71) and in line or point contact with the connecting reinforcement mesh (6).

4. The automotive rearview lamp housing according to claim 3, characterized in that: The end of the positioning connecting column (4) is provided with an internal threaded hole (41), and the lamp housing (1) is provided with a bolt through hole on the back corresponding to the mounting positioning hole (5). During assembly, the lamp housing (1) and the lamp cover (2) are fastened by passing the bolt through hole and screwing it into the internal threaded hole (41).

5. The automotive rearview lamp housing according to claim 4, characterized in that: An elastic compensation washer (42) is provided at the bottom of the internal threaded hole (41).

6. The automotive rearview lamp housing according to claim 5, characterized in that: The inner side of the inclined pressing surface (21) is a wavy curved surface, and the cross-sectional shape of the sealing ring (9) matches the wavy curved surface.

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