Lens connecting structure and lamp

Abstract

The utility model provides a kind of lens connecting structure and lamp. Lens connecting structure includes: boss, it is in the connecting side of lens, for connecting the shell of bearing lens;Mounting hole, it is on shell, and at least one inner tooth is protrudingly arranged on the inner wall of mounting hole;Wherein, boss is suitable for being installed to mounting hole, and with inner tooth interference fit, to fixedly connect shell and lens. The utility model passes through boss and the interference fit of inner tooth in mounting hole, realized the direct fixation of lens middle area, in turn avoid the optical deviation produced in the use process of lens, guarantee lighting effect.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a lens connection structure and a lamp. Background Technology

[0002] In the field of lighting manufacturing, the connection and fixation between the lens and the housing is a crucial step in ensuring the optical performance and structural stability of the lighting fixture. Currently, the main methods for connecting the lens and the housing include edge snap-fit ​​connection, screw fastening, and adhesive bonding.

[0003] For small lenses, edge clips or a few screws are sufficient for stable fixation. However, for large lenses (such as panel light lenses for indoor lighting and floodlight lenses for outdoor lighting), edge fixation alone can cause the central area of ​​the lens to warp or deform due to its own weight or changes in ambient temperature. This leads to a shift in the relative position of the lens and the light source, resulting in uneven light spots and reduced optical efficiency. While using screws to fix the central position of the lens can enhance stability, it requires drilling screw holes in both the lens and the housing, increasing processing steps and costs. Furthermore, the screw heads may obstruct light, affecting optical performance. Uneven force during screw tightening can also cause the lens to crack. Adhesive bonding has a long curing time, impacting production efficiency, and the adhesive may age and fail due to temperature changes over time, leading to decreased connection reliability.

[0004] In view of this, it is indeed necessary to improve the existing lens connection structure and luminaires to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a lens connection structure that is simple to assemble and has a stable connection.

[0006] To achieve the above objectives, this utility model provides a lens connection structure, comprising:

[0007] A protruding post, located on the connecting side of the lens, is used to connect to the housing that carries the lens;

[0008] Mounting holes are provided on the housing, and at least one internal tooth protrudes from the inner wall of the mounting holes;

[0009] The protruding post is suitable for installation into the mounting hole and is interference-fitted with the internal teeth to fix the connecting housing and lens.

[0010] Optionally, the lens includes several lens units, with a mounting gap between adjacent lens units, and a protrusion located at the mounting gap.

[0011] Optionally, the protrusion includes a fixed end near the lens and a free end away from the lens, and the outer diameter of the protrusion gradually decreases from the fixed end to the free end.

[0012] Optionally, the internal teeth are provided with multiple teeth, including tooth tips and tooth roots that connect to the inner wall of the mounting hole, and the outer diameter of the free end is greater than or equal to the inner diameter formed by the tooth tips of the multiple internal teeth.

[0013] Optionally, the cross-section of the internal tooth is triangular or trapezoidal, and the cross-sectional length of the tooth root is greater than the cross-sectional length of the tooth tip.

[0014] Optionally, the mounting hole is provided with three evenly distributed internal teeth.

[0015] Optionally, the protrusions are made of plastic, and the internal teeth are made of metal.

[0016] Optionally, the internal teeth and mounting holes are integrally formed, and the protrusions and lenses are integrally formed.

[0017] The purpose of this invention is also to provide a lamp that uses the above-mentioned lens connection structure.

[0018] To achieve the above objectives, this utility model provides a lamp, including a housing and a lens, wherein the outer edge of the lens is snapped to the housing, and the middle position of the lens is connected to the housing through a lens connection structure.

[0019] Optionally, it also includes a light source assembly disposed between the lens and the housing, wherein a through hole is provided at the corresponding mounting hole of the light source assembly, and the protrusion passes through the through hole into the mounting hole.

[0020] The beneficial effects of this utility model are:

[0021] This invention utilizes the interference fit between the protruding post and the internal teeth in the mounting hole to achieve direct fixation of the middle area of ​​the lens, thereby avoiding optical shift during use and ensuring the lighting effect. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a lamp conforming to an embodiment of the present utility model;

[0023] Figure 2 yes Figure 1 A sectional view of the lamp shown;

[0024] Figure 3 yes Figure 2 Exploded view of the housing, lens, and light source assembly;

[0025] Figure 4 yes Figure 3 Schematic diagram of the middle lens;

[0026] Figure 5 yes Figure 2 Schematic diagram of the central convex column;

[0027] Figure 6 yes Figure 2 Schematic diagram of the mounting hole in the middle;

[0028] Figure 7 This is an assembly diagram of the housing, lens, and light source components.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100 - Lighting fixtures;

[0031] 200-Housing, 210-Mounting hole, 2101-Internal tooth, 2111-Tooth tip, 2112-Tooth root;

[0032] 300 - Lens, 310 - Outer edge, 320 - Protruding post, 3201 - Fixed end, 3202 - Free end, 330 - Lens unit;

[0033] 400 - Light source assembly, 410 - Via. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0036] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] like Figures 1-2 As shown, this utility model provides a lamp 100. The lamp 100 includes a housing 200 and a lens 300. The outer edge 310 of the lens 300 is snapped to the housing 200, and the middle position of the lens 300 is connected to the housing 200 through a lens connection structure, forming a multi-point fixation at the edge and center. This ensures that the entire lens 300 is subjected to uniform force, preventing the lens 300 from sagging in the middle due to its own weight, thereby ensuring a stable light projection angle and consistent lighting effect.

[0038] like Figure 2 and Figure 6As shown, the lens connection structure includes a mounting hole 210 on the housing 200 and a protrusion 320 on the lens 300 connection side. At least one internal tooth 2101 protrudes from the inner wall of the mounting hole 210. The protrusion 320 is positioned opposite the housing 200 and corresponds to the mounting hole 210, enabling connection to the housing 200 that carries the lens 300. When assembling the housing 200 and the lens 300, the protrusion 320 is installed into the mounting hole 210 and press-fitted with the internal tooth 2101. The internal tooth 2101 applies a continuous radial compressive force to the protrusion 320, thereby securely connecting the housing 200 and the lens 300 together.

[0039] like Figure 4 As shown, the lens 300 includes several lens units 330, and there is an installation gap between two adjacent lens units 330. The protrusion 320 is located at the installation gap, which effectively avoids occupying the optical area of ​​the lens unit 330 and does not affect the lighting effect of the lamp 100.

[0040] like Figure 5 As shown, the protrusion 320 includes a fixed end 3201 near the lens 300 and a free end 3202 away from the lens 300. Preferably, multiple internal teeth 2101 are provided and evenly distributed on the inner wall of the mounting hole 210. Each internal tooth 2101 includes a tooth tip 2111 and a tooth root 2112 that connects to the inner wall of the mounting hole 210. The outer diameter of the protrusion 320 gradually decreases from the fixed end 3201 to the free end 3202, and the outer diameter of the free end 3202 is greater than or equal to the inner diameter formed by the tooth tips 2111 of the multiple internal teeth 2101. Therefore, when the protrusion 320 is pressed into the mounting hole 210, the free end 3202 smoothly enters the mounting hole 210 first, ensuring that an initial interference fit is formed at the moment of pressing in, avoiding a loose connection. As the protrusion 320 goes deeper, the outer diameter from the free end 3202 to the fixed end 3201 gradually increases, and the interference fit between the protrusion 320 and the internal tooth 2101 increases, effectively enhancing the connection strength. At the same time, when disassembly is required, only an appropriate axial force needs to be applied to pull the protrusion 320 out of the mounting hole 210, facilitating later maintenance and replacement.

[0041] like Figure 6 As shown, the cross-section of the inner tooth 2101 is triangular or trapezoidal, and the cross-sectional length of the tooth root 2112 is greater than the cross-sectional length of the tooth tip 2111. In other words, the connection area between the tooth root 2112 and the inner wall of the mounting hole 210 is larger, which can effectively enhance the structural strength of the inner tooth 2101, prevent it from breaking due to long-term stress or frequent disassembly and assembly, and thus extend the service life of the lamp 100.

[0042] In this embodiment, the mounting hole 210 is provided with three evenly distributed internal teeth 2101, forming a triangular multi-point constraint, which can constrain the protruding post 320 from three directions, making the connection between the lens 300 and the housing 200 more secure and less prone to loosening.

[0043] The protruding post 320 is made of plastic, while the internal tooth 2101 is made of metal. Utilizing the elastic deformation capability of the plastic protruding post, it can slightly deform to adapt to the shape of the internal tooth 2101 during interference fit, ensuring a tight fit between the contact surfaces. The metal internal tooth provides rigid support, balancing elastic cushioning and structural strength.

[0044] The internal teeth 2101 and the mounting hole 210 are integrally formed, and the protrusion 320 and the lens 300 are integrally formed. This design reduces the number of parts, eliminates the need for additional connectors, reduces assembly errors and costs, and eliminates splicing gaps, thus improving the overall structural integrity of the luminaire 100.

[0045] like Figure 3 and Figure 7 As shown, the lamp 100 also includes a light source assembly 400 disposed between the lens 300 and the housing 200. The light source assembly 400 has a through hole 410 at the corresponding mounting hole 210. The protrusion 320 passes through the through hole 410 and enters the mounting hole 210, forming a three-in-one positioning of the lens 300, the light source assembly 400 and the housing 200, ensuring that the center of the light source is aligned with the optical center of the lens and improving the light efficiency.

[0046] When assembling the luminaire 100, first install the light source assembly 400 onto the housing 200, aligning the through hole 410 of the light source assembly 400 with the mounting hole 210 of the housing 200. Then, pass the protrusion 320 of the lens 300 through the through hole 410 of the light source assembly 400 and press it into the mounting hole 210 of the housing 200, simultaneously engaging the outer edge 310 of the lens 300 with the edge of the housing 200, thus completing the assembly of the luminaire 100. During use, the lens 300 and housing 200 are firmly connected and will not loosen even under vibration, ensuring that the light emitted by the light source assembly 400 can be accurately projected through the lens 300, resulting in stable lighting effects. Furthermore, this lens connection structure is simple and quick to assemble, reducing production costs and improving production efficiency.

[0047] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.

Claims

1. A lens connecting structure characterized by comprising: include: A protruding post (320) is provided on the connecting side of the lens (300) for connecting the housing (200) that carries the lens (300); A mounting hole (210) is provided on the housing (200), and at least one internal tooth (2101) protrudes from the inner wall of the mounting hole (210); The protrusion (320) is adapted to be installed into the mounting hole (210) and to be press-fitted with the internal tooth (2101) to fix the housing (200) and the lens (300).

2. The lens connecting structure according to claim 1, characterized by The lens (300) includes a plurality of lens units (330), and there is an installation gap between two adjacent lens units (330). The protrusion (320) is provided at the installation gap.

3. The lens connecting structure according to claim 1, characterized by The protrusion (320) includes a fixed end (3201) near the lens (300) and a free end (3202) away from the lens (300), and the outer diameter of the protrusion (320) gradually decreases from the fixed end (3201) to the free end (3202).

4. The lens connecting structure according to claim 3, characterized by The internal teeth (2101) are provided in multiple ways, including tooth tips (2111) and tooth roots (2112) connected to the inner wall of the mounting hole (210). The outer diameter of the free end (3202) is greater than or equal to the inner diameter formed by the tooth tips (2111) of the multiple internal teeth (2101).

5. The lens connecting structure according to claim 4, characterized by The cross-section of the internal tooth (2101) is triangular or trapezoidal, and the cross-sectional length of the tooth root (2112) is greater than the cross-sectional length of the tooth tip (2111).

6. The lens connection structure according to claim 1, characterized in that, The mounting hole (210) is provided with three evenly distributed internal teeth (2101).

7. The lens connection structure according to claim 1, characterized in that, The protruding post (320) is a plastic protruding post, and the internal tooth (2101) is a metal internal tooth.

8. The lens connection structure according to claim 1, characterized in that, The internal tooth (2101) is integrally formed with the mounting hole (210), and the protrusion (320) is integrally formed with the lens (300).

9. A lamp, comprising a housing (200) and a lens (300), characterized in that, The outer edge (310) of the lens (300) is snapped to the housing (200), and the middle position of the lens (300) is connected to the housing (200) by the lens connection structure according to any one of claims 1-8.

10. The lamp according to claim 9, characterized in that, It also includes a light source assembly (400) disposed between the lens (300) and the housing (200), the light source assembly (400) having a through hole (410) corresponding to the mounting hole (210), and the protrusion (320) passing through the through hole (410) into the mounting hole (210).

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