Lens mounting structure, lens mounting system and vehicle lamp

Abstract

The application discloses a lens mounting structure, a lens mounting system and a vehicle lamp, and relates to the technical field of vehicle lighting. The lens mounting structure comprises a lens mounting support, an elastic fixing piece and a fixing support. During installation, an optical lens is smoothly inserted into a lens mounting groove of the lens mounting support along a back bearing surface of the mounting support, and the back bearing surface and a circumferential limiting surface of the lens mounting support precisely position the optical lens. Then, the optical lens is tightly pressed on the lens mounting support by the elastic fixing piece from the side, so that movement and overturning of the optical lens are prevented. Finally, the elastic fixing piece is fixed by using the fixing support, and the optical lens is indirectly tightly pressed. The lens mounting structure can position the optical lens from the side, and can also solve the problem that there is no installation space for the optical lens along the optical axis direction of the optical lens.

Description

Technical Field

[0001] This invention relates to the field of vehicle lighting technology, and more specifically, to a lens mounting structure, a lens mounting system, and a vehicle lamp. Background Technology

[0002] As the functions of lighting fixtures such as adaptive lighting and spotlights become increasingly complex, the optical systems within these fixtures are showing a trend towards multi-axis optical components. Traditional systems with a single linear optical axis can no longer meet the complex needs of customers. Currently, optical lenses are widely used inside lighting fixtures, but the multiple changes in the optical axis direction make it impossible to install and fix traditional optical lenses along the optical axis. Summary of the Invention

[0003] The purpose of this invention is to provide a lens mounting structure, a lens mounting system, and a vehicle lamp, which can mount and position optical lenses on the side and solve the problem of no mounting space for optical lenses along their optical axis.

[0004] The embodiments of the present invention are implemented as follows:

[0005] This invention provides a lens mounting structure for mounting optical lenses. The optical lens includes a lens body and a mounting flange surrounding the periphery of the lens body. The lens mounting structure includes a lens mounting bracket, an elastic fastener, and a fixing bracket. The lens mounting bracket has a back support surface, a circumferential limiting surface perpendicular to the back support surface, and a mounting groove disposed on the side of the circumferential limiting surface away from the back support surface. The back support surface supports the back end face of the mounting flange. The optical lens slides along the back support surface into the space enclosed by the circumferential limiting surface. The elastic fastener includes a fixing plate, a fixing arm disposed on the fixing plate, and a clamping plate. The circumferential limiting surface and the clamping plate cooperate to fix the circumferential end face of the mounting flange. The fixing arm extends into the mounting groove and abuts against the inner wall of the mounting groove and the front end face of the mounting flange to press the optical lens onto the back support surface. The fixing bracket is used to fix the elastic fastener to the lens mounting bracket.

[0006] Optionally, the fixed arm has a clamping part and an anti-reverse part. The surface of the clamping part is arc-shaped, and the anti-reverse part is inclined. The end of the anti-reverse part forms an elastic interference with the mounting groove so that the clamping part abuts against the front end face of the mounting flange.

[0007] Optionally, the fixed bracket is provided with a first pressing protrusion, which abuts against the pressing plate to press the pressing plate against the circumferential end face of the mounting flange.

[0008] Optionally, the fixing bracket is further provided with a second pressing protrusion, which abuts against the fixing plate to fix the elastic fastener.

[0009] Optionally, the circumferential limiting surface includes a bottom support surface and two oppositely arranged side limiting surfaces. The bottom support surface is used to limit the circumferential end face of the mounting flange along a first direction, and the two side limiting surfaces are used to limit the circumferential end face of the mounting flange along a second direction and a third direction. The first direction, the second direction, and the third direction are all parallel to the back end face, the second direction is opposite to the third direction, and the first direction is perpendicular to the second direction and the third direction.

[0010] Optionally, the mounting slots include two, which are located on the side of the two side limiting surfaces away from the back bearing surface, and the fixing arms also include two, which extend into the two mounting slots respectively.

[0011] Optionally, the surfaces of the lens mounting bracket, the elastic fastener, and the fixing bracket are all provided with a light-absorbing coating, which is used to absorb stray light.

[0012] Optionally, the profile tolerance of the back support surface and the circumferential limiting surface of the lens mounting bracket is within ±0.05mm.

[0013] This invention provides a lens mounting system, including an optical lens and a lens mounting structure as described above. The optical lens includes a lens body and a mounting flange surrounding the periphery of the lens body. The optical lens is fixed to the lens mounting structure by the mounting flange, and the mounting direction of the optical lens is the direction of the optical axis normal of the lens body.

[0014] This invention provides a vehicle light, including the lens mounting system described above.

[0015] The beneficial effects of the embodiments of the present invention include:

[0016] The lens mounting structure provided in this embodiment of the invention is used to mount optical lenses. The optical lens includes a lens body and a mounting flange surrounding the periphery of the lens body. The lens mounting structure includes a lens mounting bracket, an elastic fixing member, and a fixing bracket. The lens mounting bracket has a back support surface, a circumferential limiting surface perpendicular to the back support surface, and a mounting groove disposed on the side of the circumferential limiting surface away from the back support surface. The back support surface is used to support the back end face of the mounting flange. The optical lens slides along the back support surface into the space enclosed by the circumferential limiting surface. The elastic fixing member includes a fixing plate, a fixing arm disposed on the fixing plate, and a clamping plate. The circumferential limiting surface and the clamping plate cooperate to fix the circumferential end face of the mounting flange. The fixing arm extends into the mounting groove and abuts against the inner wall of the mounting groove and the front end face of the mounting flange to press the optical lens onto the back support surface. The fixing bracket is used to fix the elastic fixing member on the lens mounting bracket. During installation, the optical lens smoothly slides into the lens mounting slot of the lens mounting bracket along the back support surface. The back support surface and circumferential limiting surface of the lens mounting bracket precisely position the optical lens. Then, elastic fasteners are used from the side to press the optical lens firmly onto the lens mounting bracket, preventing the optical lens from shifting or flipping. Finally, a fixing bracket is used to secure the elastic fasteners, thereby indirectly pressing the optical lens. This lens mounting structure allows for side mounting and positioning of the optical lens and also solves the problem of insufficient mounting space along the optical axis. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the lens mounting system provided in an embodiment of the present invention after the fixing bracket is hidden.

[0019] Figure 2 One of the partial cross-sectional views of the lens mounting system provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the lens mounting bracket in the lens mounting structure provided in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the elastic fastener in the lens mounting structure provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the fixing bracket in the lens mounting structure provided in an embodiment of the present invention;

[0023] Figure 6 A second partial sectional view of the lens mounting system provided in an embodiment of the present invention;

[0024] Figure 7 This is a third partial sectional view of the lens mounting system provided in an embodiment of the present invention.

[0025] Icons: 10-Lens mounting system; 100-Lens mounting structure; 110-Lens mounting bracket; 111-Back support surface; 112-Circumferential limiting surface; 1121-Bottom support surface; 1122-Side limiting surface; 113-Mounting groove; 114-Limiting boss; 120-Elastic fastener; 121-Fixing plate; 122-Fixing arm; 1221-Pressure part; 1222-Anti-reverse part; 123-Pressure plate; 124-Limiting hole; 130-Fixing bracket; 131-First pressing protrusion; 132-Second pressing protrusion; 200-Optical lens; 210-Lens body; 220-Mounting flange; 221-Front end face; 222-Back end face; 223-Circumferential end face. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this invention, 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 invention is in use. They are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal" and "vertical" 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 than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Please refer to the reference. Figure 1 and Figure 2 This application provides a lens mounting structure 100 for mounting an optical lens 200. The optical lens 200 includes a lens body 210 and a mounting flange 220 surrounding the periphery of the lens body 210. The lens body 210 is the optically effective area of ​​the optical lens 200, and the mounting flange 220 is arranged along the circumferential edge of the lens body 210 along its optical axis. The mounting flange 220 has a front end face 221 and a back end face 222 that are parallel to each other, and a circumferential end face 223 connecting the front end face 221 and the back end face 222. The front end face 221 and the back end face 222 are perpendicular to the optical axis direction of the optical lens 200.

[0033] Please refer to the reference. Figure 3The lens mounting structure 100 includes a lens mounting bracket 110, which is the main supporting component of the optical lens 200. The lens mounting bracket 110 has a back support surface 111, a circumferential limiting surface 112 perpendicular to the back support surface 111, and a mounting groove 113 located on the side of the circumferential limiting surface 112 away from the back support surface 111. The optical lens 200 slides along the back support surface 111 into the space enclosed by the circumferential limiting surface 112. The back support surface 111 supports the back end face 222 of the mounting flange 220, and the circumferential limiting surface 112 limits the circumferential end face 223 of the mounting flange 220.

[0034] Meanwhile, to limit the degrees of freedom of the optical lens 200 in the direction away from the sliding direction and the direction away from the back support surface 111, the lens mounting structure 100 also includes an elastic fastener 120 and a fixing bracket 130. Please refer to the reference. Figure 4 The elastic fastener 120 includes a fixing plate 121, a fixing arm 122 disposed on the fixing plate 121, and a clamping plate 123. After the elastic fastener 120 is installed, the clamping plate 123 cooperates with the circumferential limiting surface 112 to form a structure that clamps the circumferential end face 223, thereby preventing the optical lens 200 from shifting or flipping. The fixing arm 122 extends into the mounting groove 113 and abuts against the inner wall of the mounting groove 113 and the front end face 221 of the mounting flange 220, using its own elastic deformation to press the optical lens 200 onto the back support surface 111. Please refer to the reference. Figure 5 The fixing bracket 130 is used to press the elastic fixing member 120 onto the lens mounting bracket 110, thereby pressing the optical lens 200.

[0035] For example, the clamping plate 123 is parallel to the fixing plate 121. The fixing plate 121 is provided with a limiting hole 124, and the lens mounting bracket 110 is provided with a limiting boss 114. After the elastic fastener 120 is installed, the limiting boss 114 extends into the limiting hole 124 to initially fix the elastic fastener 120. The fixing bracket 130 is fixed to the lens mounting bracket 110 with screws to fix the elastic fastener 120.

[0036] It is understood that the elastic fastener 120 has the characteristic of being elastically deformable. After deformation, it can generate sufficient pressure to press the optical lens 200 tightly without damaging the optical lens 200. For example, the material of the elastic fastener 120 is stainless steel. The fixing bracket 130 has sufficient rigidity to not deform after pressing the elastic fastener 120.

[0037] As described above, during installation, the optical lens 200 smoothly slides into the lens mounting groove 113 of the lens mounting bracket 110 along the back bearing surface 111 of the lens mounting bracket 110. The back bearing surface 111 and the circumferential limiting surface 112 of the lens mounting bracket 110 precisely position the optical lens 200. Then, the optical lens 200 is pressed against the lens mounting bracket 110 from the side using an elastic fastener 120 to prevent the optical lens 200 from shifting or flipping. Finally, the elastic fastener 120 is fixed using a fixing bracket 130, thereby indirectly pressing the optical lens 200. The above-mentioned lens mounting structure 100 can install and position the optical lens 200 from the side and also solves the problem of no installation space for the optical lens 200 along its optical axis.

[0038] Please refer to Figure 2 and Figure 4 Optionally, in one possible embodiment of the present invention, the fixed arm 122 has a pressing part 1221 and an anti-retraction part 1222. The surface of the pressing part 1221 is arc-shaped, and the anti-retraction part 1222 is inclined. The end of the anti-retraction part 1222 forms elastic interference with the mounting groove 113 so that the pressing part 1221 abuts against the front end face 221 of the mounting flange 220.

[0039] After the fixing arm 122 of the elastic fastener 120 is pressed into the mounting groove 113, the clamping part 1221 of the fixing arm 122 presses against the front end face 221 of the mounting flange 220 of the optical lens 200. The surface of the clamping part 1221 is arc-shaped to avoid damage to the surface of the optical lens 200. The anti-retraction part 1222 is located on the side of the clamping part 1221 away from the back support surface 111, and is inclined away from the clamping part 1221. It forms elastic interference with the inner wall of the mounting groove 113 to provide clamping force for the clamping part 1221 to press the optical lens 200, thereby ensuring that the optical lens 200 is firmly attached to the back support surface 111 and that no large concentrated stress is generated on the optical lens 200, which would damage the optical lens 200, thus solving the problem of high stress from hard contact. At the same time, the elastic interference between the edge of the anti-retraction part 1222 and the mounting groove 113 ensures that sufficient friction is generated between them to prevent the elastic fastener 120 from loosening after it is installed in place. For example, the elastic fastener 120 is integrally formed, and when bent, it forms a clamping part 1221 and an anti-retraction part 1222.

[0040] Please refer to Figures 4 to 6Optionally, in one possible embodiment of the present invention, the fixing bracket 130 is provided with a first pressing protrusion 131, which abuts against the clamping plate 123 to press the clamping plate 123 against the circumferential end face 223 of the mounting flange 220. The first pressing protrusion 131 of the fixing bracket 130 presses against the clamping plate 123 of the elastic fixing member 120, so that the clamping plate 123 presses against the optical lens 200, ensuring that the circumferential end face 223 of the optical lens 200 abuts against the bottom support surface 1121 and prevents it from retracting. There is a certain interference between the first pressing protrusion 131 and the clamping plate 123 to generate an elastic force to ensure that the optical lens 200 is installed in place and does not retract.

[0041] Please refer to Figure 4 , Figure 5 and Figure 7 Optionally, in one possible embodiment of the present invention, the fixing bracket 130 is further provided with a second pressing protrusion 132, which abuts against the fixing plate 121 to further fix the elastic fixing member 120. The second pressing protrusion 132 presses against the fixing surface of the elastic fixing member 120, providing secondary protection against the elastic fixing member 120's slippage, and further improving the stability of the lens mounting structure 100.

[0042] Please refer to Figure 1 and Figure 3 Optionally, in one possible embodiment of the present invention, the circumferential limiting surface 112 includes a bottom supporting surface 1121 and two opposing side limiting surfaces 1122. The bottom supporting surface 1121 is used to support the circumferential end face 223 of the mounting flange 220 along a first direction ( Figure 3 The two side limiting surfaces 1122 are used to limit the circumferential end face 223 of the mounting flange 220 along the second direction (A direction). Figure 3 (in the B direction) and third direction ( Figure 3 The C direction in the optical lens is used for positioning. The first, second, and third directions are all parallel to the back end face 222. The second direction is opposite to the third direction, and the first direction is perpendicular to both the second and third directions. It can be understood that the first direction is the sliding direction of the optical lens 200 during installation.

[0043] Preferably, the bottom support surface 1121 and the two side limiting surfaces 1122 are both flat, forming a small area of ​​contact positioning with the circumferential end face 223 of the mounting flange 220. The processing accuracy of the small contact surface is easier to ensure, and the positioning is more accurate.

[0044] Optionally, in one possible embodiment of the present invention, the mounting groove 113 includes two, and the two mounting grooves 113 are respectively located on the side of the two side limiting surfaces 1122 away from the back bearing surface 111. The fixing arm 122 also includes two, and the elastic fixing member 120 is installed along the sliding direction. The two fixing arms 122 extend into the two mounting grooves 113 respectively, and the two fixing arms 122 apply a clamping force on both sides of the optical lens 200, which can make the optical lens 200 fit more closely to the back bearing surface 111 and achieve higher installation accuracy.

[0045] Optionally, in one possible embodiment of the present invention, the surfaces of the lens mounting bracket 110, the elastic fastener 120 and the fixing bracket 130 are all provided with a light-absorbing coating, which is used to absorb stray light.

[0046] Preferably, the light-absorbing coating is matte black, which can eliminate light and reduce the risk of optical stray light. The light-absorbing coating can be formed by applying a high-temperature resistant black paint to the surface of the part.

[0047] Optionally, in one possible embodiment of the present invention, the profile tolerance of the bottom support surface 1121 and the circumferential limiting surface 112 of the lens mounting bracket 110 is within ±0.05mm.

[0048] The bottom support surface 1121 and the circumferential limiting surface 112 of the lens mounting bracket 110 serve as the mounting and positioning surfaces for the optical lens 200. Their machining accuracy is required to be within ±0.05mm, which can improve the mounting accuracy of the optical lens 200. In actual processing, they can be prepared through high-precision molding or post-molding machining.

[0049] Preferably, the profile tolerance of the bottom support surface 1121 and the circumferential limiting surface 112 of the lens mounting bracket 110 is within ±0.03mm, so as to further improve the mounting accuracy of the optical lens 200.

[0050] Please refer to Figure 1 This embodiment also provides a lens mounting system 10, including an optical lens 200 and a lens mounting structure 100 as described above. The optical lens 200 includes a lens body 210 and a mounting flange 220 surrounding the periphery of the lens body 210. The optical lens 200 is fixed to the lens mounting structure 100 by the mounting flange 220. The mounting direction of the optical lens 200 is the optical axis normal direction of the lens body 210, that is, the mounting direction of the optical lens 200 is perpendicular to the optical axis direction of the lens body 210.

[0051] This embodiment also provides a vehicle light, including the lens mounting system 10 as described above.

[0052] The lens mounting system 10 and the vehicle headlight have the same structure and beneficial effects as the lens mounting structure 100 in the foregoing embodiments. The structure and beneficial effects of the lens mounting structure 100 have been described in detail in the foregoing embodiments and will not be repeated here.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A lens mounting structure for mounting an optical lens, the optical lens comprising a lens body and a mounting flange surrounding the periphery of the lens body, characterized in that, The lens mounting structure includes a lens mounting bracket, an elastic fastener, and a fixing bracket; The lens mounting bracket has a back support surface, a circumferential limiting surface perpendicular to the back support surface, and a mounting groove disposed on the side of the circumferential limiting surface away from the back support surface. The back support surface is used to support the back end face of the mounting flange, and the optical lens slides along the back support surface into the space enclosed by the circumferential limiting surface. The elastic fastener includes a fixing plate, a fixing arm disposed on the fixing plate, and a pressing plate. The circumferential limiting surface and the pressing plate cooperate to fix the circumferential end face of the mounting flange. The fixing arm extends into the mounting groove and abuts against the inner wall of the mounting groove and the front end face of the mounting flange to press the optical lens against the back support surface. The fixing bracket is used to fix the elastic fastener on the lens mounting bracket.

2. The lens mounting structure according to claim 1, characterized in that, The fixed arm has a pressing part and an anti-retraction part. The surface of the pressing part is arc-shaped, and the anti-retraction part is inclined. The end of the anti-retraction part forms elastic interference with the mounting groove so that the pressing part abuts against the front end face of the mounting flange.

3. The lens mounting structure according to claim 1, characterized in that, The fixed bracket is provided with a first pressing protrusion, which abuts against the pressing plate to press the pressing plate against the circumferential end face of the mounting flange.

4. The lens mounting structure according to claim 3, characterized in that, The fixed bracket is also provided with a second pressing protrusion, which abuts against the fixed plate to fix the elastic fastener.

5. The lens mounting structure according to any one of claims 1 to 4, characterized in that, The circumferential limiting surface includes a bottom support surface and two oppositely arranged side limiting surfaces. The bottom support surface is used to limit the circumferential end face of the mounting flange along a first direction, and the two side limiting surfaces are used to limit the circumferential end face of the mounting flange along a second direction and a third direction. The first direction, the second direction, and the third direction are all parallel to the back end face, the second direction is opposite to the third direction, and the first direction is perpendicular to the second direction and the third direction.

6. The lens mounting structure according to claim 5, characterized in that, The mounting slots include two, and the two mounting slots are respectively located on the side of the two side limiting surfaces away from the back bearing surface. The fixing arms also include two, and the two fixing arms extend into the two mounting slots respectively.

7. The lens mounting structure according to claim 1, characterized in that, The surfaces of the lens mounting bracket, the elastic fastener, and the fixing bracket are all provided with a light-absorbing coating, which is used to absorb stray light.

8. The lens mounting structure according to claim 1, characterized in that, The profile tolerance of the back support surface and the circumferential limiting surface of the lens mounting bracket is within ±0.05mm.

9. A lens mounting system, characterized in that, The invention includes an optical lens and a lens mounting structure as described in any one of claims 1 to 8. The optical lens includes a lens body and a mounting flange surrounding the periphery of the lens body. The optical lens is fixed to the lens mounting structure by the mounting flange, and the mounting direction of the optical lens is the direction of the optical axis normal of the lens body.

10. A vehicle light, characterized in that, Includes the lens mounting system as described in claim 9.

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