Snap-fit structure, vehicle lamp module and vehicle lamp

Abstract

The application provides a buckle cooperation structure, a vehicle lamp module and a vehicle lamp, and relates to the technical field of vehicle lamps. The buckle cooperation structure comprises a lens support, a first opening and a second opening are oppositely arranged on the support body, a first through hole is arranged on the top of the support body, the stop edge is arranged on the first opening in the circumferential direction, a recessed groove is arranged on the inner wall surface of the top of the support body, the recessed groove is located between the inner wall of the stop edge and the side wall of the first through hole, the first clamping piece is located in the first through hole and is connected with the support body, the first clamping piece, the stop edge and the recessed groove jointly form a first limiting cavity, the first lens comprises a lens body and a first flange arranged on the top of the lens body, and the first flange is provided with a protrusion matched with the first limiting cavity. Therefore, the opening size of the first opening in the vertical direction can be reduced while the stability and reliability of the buckle connection are ensured.

Description

Technical Field

[0001] This application relates to the field of automotive lighting technology, and in particular to a snap-fit ​​structure, an automotive lighting module, and an automotive lighting. Background Technology

[0002] With the development of automotive lighting technology and the diversification of automotive headlight designs, headlight modules with ultra-narrow openings are becoming increasingly popular.

[0003] Currently, automotive lighting modules typically consist of two or more lens layers, including an inner lens and an outer lens. In related technologies, the outer lens is connected to the opening of the lens holder via a snap-fit ​​mechanism. The outer lens is inserted from one side of the larger opening of the lens holder to the other side of the smaller opening, and the flange of the outer lens is snapped into the smaller opening using a clip-fit ​​mechanism.

[0004] This method is relatively low-cost, but to ensure the snap-fit ​​strength, the outer lens has a wide annular flange. After assembly, the lens bracket has a large opening in the vertical direction, affecting the compatibility and convenience of the headlight module's installation within the headlight. However, directly reducing the width of the flange results in insufficient snap-fit ​​engagement, leading to decreased connection reliability. Utility Model Content

[0005] This application proposes a snap-fit ​​structure, a vehicle light module, and a vehicle light, aiming to improve the problem of not being able to simultaneously accommodate the small opening size in the vertical direction and the reliability of the snap-fit ​​connection.

[0006] In a first aspect, embodiments of this application propose a snap-fit ​​structure, comprising: a lens bracket, including a bracket body, a stop edge, and a first snap-fit ​​member; the bracket body having a first opening and a second opening disposed opposite to each other; a first through hole provided at the top of the bracket body; the stop edge being disposed circumferentially at the first opening; a recessed groove provided on the inner wall surface of the top of the bracket body; the recessed groove being located between the inner wall of the stop edge and the side wall of the first through hole; the first snap-fit ​​member being located within the first through hole and connected to the bracket body; the first snap-fit ​​member, the stop edge, and the recessed groove together forming a first limiting cavity; and a first lens, the first lens including a lens body and a first flange provided at the top of the lens body; the first flange having a protrusion adapted to the first limiting cavity.

[0007] This application replaces the integral flange in related technologies with a first flange featuring a partial protrusion. In this way, the first flange does not participate in the snap-fit ​​engagement, and its width (the radial dimension along the lens body) can be narrowed, thus achieving a narrow-edge effect for the first lens. Furthermore, the height of the protrusion can also be reduced. When the height of the protrusion decreases, the width of the retaining edge also decreases, and the overall opening size of the first opening in the vertical direction (the vehicle's height direction) can also be reduced. Moreover, since the inner wall surface of the top of the bracket body has a recessed groove, the engagement depth of the first limiting cavity depends on both the depth of the recessed groove and the width of the retaining edge. With the depth compensation of the recessed groove, the engagement depth (fastening amount) between the protrusion and the first limiting cavity still meets the requirements, thereby ensuring the stability and reliability of the snap-fit ​​installation even after the dimensions of the protrusion and retaining edge are reduced. Therefore, it is beneficial to reduce the opening size of the first opening in the vertical direction while ensuring the stability and reliability of the snap-fit ​​connection, thereby improving the installation adaptability and convenience of the headlight module within the headlight.

[0008] In some embodiments, the lens body includes a light-emitting portion, and the distance between the top of the first flange and the top of the light-emitting portion is less than or equal to 1 mm.

[0009] This design has two advantages. First, it reduces the space occupied by the first flange and decreases the vertical opening size of the first opening, thereby improving the installation compatibility and convenience of the headlight module within the headlight. Second, it achieves a narrow bezel effect on the light-emitting surface, enhancing the refinement and aesthetics of the headlight module.

[0010] In some embodiments, the lens body includes a light-emitting portion, and the distance between the top of the protrusion and the top of the light-emitting portion is less than or equal to 4 mm and greater than or equal to 2 mm.

[0011] This helps to reduce the vertical opening size of the first opening while ensuring the stability and reliability of the snap-fit ​​connection, thereby improving the compatibility and convenience of the headlight module installation within the headlight.

[0012] In some embodiments, the first snap-fit ​​member includes a cantilever body and a guide portion and a limiting portion disposed on the lower surface of the cantilever body. The upper surface of the cantilever body is flush with the outer wall surface of the top of the bracket body, and the lower surface of the cantilever body is flush with the inner wall surface of the top of the bracket body. The first limiting cavity is formed between the limiting part and the stop edge, and the thickness of the guide part gradually increases along the direction from the guide part to the limiting part.

[0013] Therefore, firstly, it helps improve the aesthetics of the lens holder and ensures the cleanliness of the internal space and the unobstructed optical path. Secondly, it helps reduce assembly resistance and improves the smoothness of assembling the first lens.

[0014] In some embodiments, there is a first distance D1 between the end of the guide portion away from the limiting portion and the end of the limiting portion away from the guide portion, and a second distance D2 between the bottom of the stop edge and the outer wall surface at the top of the bracket body, where D1 / D2≥5 / 2.

[0015] Through the above limitations, firstly, the guide portion has a relatively small rate of change in the vertical direction, resulting in a smaller space occupied by the final limiting portion in the vertical direction. This reduces the probability of interference between the limiting portion and the light-emitting portion during assembly, improving defects such as scratches and wear. Secondly, the smooth assembly path also helps reduce assembly resistance, improving assembly smoothness and feel.

[0016] In some embodiments, the guide portion has a guide surface, the guide surface having an angle of less than or equal to 20° with a first direction, the first direction being the direction from the second opening to the first opening.

[0017] This reduces the probability of interference between the limiting part and the light-emitting part during assembly, improving defects such as scratches and wear. Secondly, the smooth assembly path also helps reduce assembly resistance, improving assembly smoothness and feel.

[0018] In some embodiments, the limiting portion has a first limiting surface and a second limiting surface on the side surface near the stop edge, and the second limiting surface is located above the first limiting surface and is set at an angle to the first limiting surface; The edge of the second limiting surface that is opposite to the first limiting surface is located above the lower surface of the cantilever body.

[0019] This helps to increase the engagement amount between the limiting part and the protrusion, thereby reducing the opening size of the first opening in the vertical direction while ensuring the stability and reliability of the snap-fit ​​connection.

[0020] In some embodiments, the bracket body has a second through hole on its side in the left-right direction, a second snap-fit ​​member is provided in the second through hole, and a second limiting cavity is formed between the second snap-fit ​​member and the stop edge; The first lens further includes a second flange disposed on the side of the lens body in the left-right direction. The second flange engages with the second limiting cavity, and a guide notch is provided on the second flange.

[0021] This design helps to further reduce the vertical opening size of the first opening. It also improves the ease of assembling the first lens.

[0022] Secondly, this application provides a vehicle lighting module, including: a light source; a second lens; and a snap-fit ​​structure as described in the first aspect, wherein the second lens is disposed within the bracket body and close to the second opening, and the light source is located on the side of the second lens away from the bracket body.

[0023] This helps to reduce the vertical opening size of the first opening while ensuring the stability and reliability of the snap-fit ​​connection, thereby improving the compatibility and convenience of the headlight module installation within the headlight.

[0024] In some embodiments, the second lens includes a low-beam light distribution lens and a high-beam light distribution lens arranged in a vertical direction; The headlight module also includes a baffle assembly disposed between the first lens and the second lens. The baffle assembly includes an optical baffle and a heat insulation sheet. The heat insulation sheet is disposed in the bracket body and fixedly connected to the bracket body. The optical baffle is riveted to the heat insulation sheet. The optical baffle is used to form a low beam cutoff line.

[0025] The optical baffle creates a cutoff line for low beams that is lower on the left and higher on the right, while the heat shield prevents heat transfer to the bracket body and also protects against solar ablation. Riveting the optical baffle and heat shield together also helps reduce the number of components in the headlight module, thus improving assembly efficiency.

[0026] Thirdly, embodiments of this application provide a vehicle light, including the vehicle light module described in the second aspect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the snap-fit ​​structure provided in the embodiments of this application; Figure 2 This is an exploded view of the snap-fit ​​structure provided in the embodiments of this application; Figure 3 This is a schematic diagram of the lens holder provided in an embodiment of this application; Figure 4 for Figure 3 Enlarged view of point M in the middle; Figure 5 This is a schematic diagram of the structure of the first lens provided in an embodiment of this application; Figure 6 This is a cross-sectional structural diagram of the snap-fit ​​structure provided in the embodiments of this application; Figure 7 for Figure 6A magnified structural diagram at point N; Figure 8 This is a schematic diagram of the structure of the vehicle headlight module provided in the embodiments of this application; Figure 9 This is an exploded view of the vehicle headlight module provided in an embodiment of this application.

[0028] The annotations in the attached figures are explained as follows: 1. Headlight module; 10. Snap-fit ​​structure; 100. Lens bracket; 110. Bracket body; 111. First opening; 112. Second opening; 113. First through hole; 114. Recessed groove; 115. First limiting cavity; 116. Second through hole. 120. Edge guard; 130. First snap-fit ​​component; 131. Cantilever body; 132. Guide part; 1321. Guide surface; 133. Limiting part; 1331. First limiting surface; 1332. Second limiting surface; 140. Second card connector; 200, First lens; 210, Lens body; 211, Light-emitting part; 220, First flange; 221, Protrusion; 230, Third flange; 240, Second flange; 241, Guide notch. 300. Second lens; 310. Low beam lens; 320. High beam lens; 400. Baffle assembly; 410. Optical baffle; 420. Heat insulation sheet. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "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 or an electrical 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0033] In related technologies, the outer lens is connected to the opening of the lens holder by a snap-fit ​​mechanism. The outer lens is inserted from one side of the large opening of the lens holder to the other side of the small opening, and the flange of the outer lens is snapped into the small opening by a snap-fit ​​mechanism.

[0034] This snap-fit ​​connection method is relatively inexpensive. To ensure the snap-fit ​​strength, the outer lens has a wide annular flange. After assembly, the lens bracket has a large opening in the vertical direction, which affects the compatibility and convenience of installing the headlight module inside the headlight. However, if the width of the flange is directly reduced, the snap-fit ​​amount will be insufficient, leading to a decrease in connection reliability.

[0035] Based on the above problems, this application proposes a snap-fit ​​structure, a vehicle light module, and a vehicle light, aiming to improve the problem of not being able to simultaneously achieve a small opening size in the vertical direction and reliable snap-fit ​​connection.

[0036] like Figures 1 to 7As shown, in a first aspect, this application provides a snap-fit ​​structure 10, which includes a lens bracket 100 and a first lens 200. The lens bracket 100 includes a bracket body 110, a stop 120, and a first snap-fit ​​member 130. The bracket body 110 has a first opening 111 and a second opening 112 disposed opposite to each other. The top of the bracket body 110 is provided with a first through hole 113. The stop 120 is disposed circumferentially in the first opening 111. The inner wall surface of the top of the bracket body 110 is provided with... There is a recessed groove 114, which is located between the inner wall of the retaining edge 120 and the side wall of the first through hole 113. The first snap-fit ​​member 130 is located in the first through hole 113 and connected to the bracket body 110. The first snap-fit ​​member 130, the retaining edge 120, and the recessed groove 114 together form the first limiting cavity 115. The first lens 200 includes a lens body 210 and a first flange 220 provided on the top of the lens body 210. The first flange 220 is provided with a protrusion 221 that is adapted to the first limiting cavity 115.

[0037] The lens holder 100 is used to mount the first lens 200, which is, for example, an external lens. The holder body 110 is the basic frame of the lens holder 100, providing mounting reference and structural strength. The holder body 110 constructs an optical path channel through a first opening 111 and a second opening 112. Optionally, along the extension direction of the optical path channel (the direction from the second opening 112 to the first opening 111), the orthographic projection of the first opening 111 is located within the second opening 112. That is, the first opening 111 is smaller and is the light outlet of the optical path channel; its size directly determines the refinement of the module's appearance. The second opening 112 is used to accommodate the light source and / or other internal optical components. Because the first opening 111 is smaller, the first lens 200 can be inserted from one side of the second opening 112 and eventually pushed into the first opening 111, improving the ease of assembly of the first lens 200.

[0038] The guard 120 is circumferentially disposed in the first opening 111. The inner wall of the guard 120 is the final stop surface of the first lens 200, which can prevent the first lens 200 from coming out of the first opening 111.

[0039] The first through hole 113 is used to provide the first snap-fit ​​member 130. One end of the first snap-fit ​​member 130 is integrally formed with the side wall of the first through hole 113 away from the side edge 120, and the other end of the first snap-fit ​​member 130 extends to be opposite to the inner wall of the side edge 120 and the side wall of the first through hole 113 near the side edge 120.

[0040] Reference Figure 3 , Figure 4 , Figure 6 and Figure 7The recessed groove 114 is located between the inner wall of the retaining edge 120 and the side wall of the first through hole 113, and the recessed groove 114 occupies a portion of the space in the thickness direction of the support body 110. Thus, as... Figure 7 As shown, the engagement depth H of the first limiting cavity 115 is the sum of the width h2 of the stop 120 and the recess depth h1 of the recessed groove 114.

[0041] The first lens 200 includes a lens body 210 and a first flange 220 disposed on the top of the lens body 210. The lens body 210 is used to realize the optical function of the first lens 200, and the first flange 220 is a small side extending outward from the top of the lens body 210. When the first lens 200 is pushed into the first opening 111 from the second opening 112, the protrusion 221 will squeeze the free end of the first locking member 130, causing the end of the first locking member 130 to undergo elastic deformation, and the protrusion 221 will gradually slide into the first limiting cavity 115. After it is in place, the first locking member 130 springs back, and the first limiting cavity 115 forms a locking limit on the protrusion 221. In this way, the first lens 200 can be locked with the lens holder 100.

[0042] The snap-fit ​​structure 10 of this application embodiment has a first flange 220 provided on the top of the lens body 210 of the first lens 200, and the first flange 220 has a protrusion 221 for engaging with the first limiting cavity 115. That is, this application changes the integral flange in the related art to a first flange 220 with a partial protrusion 221. In this way, the first flange 220 does not participate in the snap-fit, and its width (the dimension along the radial direction of the lens body 210) can be narrowed, thereby achieving the narrow edge effect of the first lens 200. Furthermore, the height dimension of the protrusion 221 can also be reduced. When the height dimension of the protrusion 221 is reduced, the width of the retaining edge 120 will also be reduced accordingly, and the opening size of the entire first opening 111 in the vertical direction (the height direction of the vehicle) can also be reduced accordingly. Furthermore, since the inner wall surface of the top of the bracket body 110 is provided with a recessed groove 114, the engagement depth H of the first limiting cavity 115 depends simultaneously on the recessed depth h1 of the recessed groove 114 and the width h2 of the retaining edge 120. With the depth compensation of the recessed groove 114, the engagement depth (engagement amount) between the protrusion 221 and the first limiting cavity 115 can still meet the requirements, thereby ensuring the stability and reliability of the snap-fit ​​installation after the size of the protrusion 221 and the retaining edge 120 is reduced. Thus, it is beneficial to reduce the opening size of the first opening 111 in the vertical direction while ensuring the stability and reliability of the snap-fit ​​connection, thereby improving the installation adaptability and convenience of the headlight module 1 in the headlight.

[0043] Furthermore, since the width of the first flange 220 is significantly reduced, and it changes from a wide flange in related technologies to a narrow flange with local protrusions, it helps to reduce the material and cost of the first lens 200 and achieve the requirement of lightweighting.

[0044] In addition, after the first lens 200 is installed, when viewed from the light-emitting surface of the first lens 200, the edge 120 of the lens bracket 100 becomes narrower, and most of it is the optical surface of the first lens 200. This also helps to achieve a narrow frame effect on the light-emitting surface, which in turn helps to improve the refinement and aesthetics of the headlight module.

[0045] like Figure 5 As shown, in some embodiments, the lens body 210 includes a light-emitting portion 211, and the distance D3 between the top of the first flange 220 and the top of the light-emitting portion 211 is less than or equal to 1 mm.

[0046] Since the light-emitting portion 211 of the first lens 200 is close to the baffle 120, the distance between the top of the first flange 220 and the top of the light-emitting portion 211, with the top plane of the light-emitting portion 211 as a reference, is the radial width of the first flange 220.

[0047] By setting the radial width of the first flange 220 to less than or equal to 1 mm, an extremely narrow edge effect can be achieved at the top of the first lens 200. This design, on the one hand, reduces the space occupied by the first flange 220 and decreases the vertical opening size of the first opening 111, thereby improving the installation adaptability and convenience of the headlight module 1 within the headlight. On the other hand, it achieves a narrow bezel effect on the light-emitting surface, enhancing the refinement and aesthetics of the headlight module.

[0048] Optionally, the radial width of the first flange 220 can be 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, etc., and can be flexibly designed according to the actual situation.

[0049] Optionally, the first lens 200 further includes a third flange 230 disposed at the bottom of the lens body 210, the third flange 230 being opposite to the first flange 220, and the distance between the bottom of the third flange 230 and the bottom of the light-emitting part 211 being less than or equal to 1 mm.

[0050] This design, on the one hand, can further reduce the vertical opening size of the first opening 111, thereby improving the installation compatibility and convenience of the headlight module 1 within the headlight. On the other hand, it helps to further enhance the refinement and aesthetics of the headlight module.

[0051] like Figure 3 As shown, in some embodiments, the distance between the top of the protrusion 221 and the top of the light-emitting portion 211 is less than or equal to 4 mm and greater than or equal to 2 mm.

[0052] The distance between the top of the protrusion 221 and the top of the light-emitting part 211 is the height of the protrusion 221. When the height of the protrusion 221 is too high, the protrusion 221 will occupy too much space, resulting in the opening size of the first opening 111 being too large in the vertical direction; when the height of the protrusion 221 is too small, the locking strength cannot be guaranteed, resulting in the risk of the first lens 200 falling off.

[0053] Therefore, by limiting the protrusion 221 to the above-mentioned size range, it is beneficial to reduce the opening size of the first opening 111 in the vertical direction while ensuring the stability and reliability of the snap-fit ​​connection, thereby improving the installation adaptability and convenience of the vehicle lamp module 1 in the vehicle lamp.

[0054] Optionally, the height of the protrusion 221 can be 2mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3mm, 4mm, etc., and can be flexibly designed according to the actual situation.

[0055] In the snap-fit ​​structure of the related technology, the first lens has a 4mm flange, the width of the first stop of the lens holder is approximately 3.5mm, the height of the light-emitting part of the first lens is 40mm, the thickness of the holder body is 2.2mm, and the assembly gap between the bottom of the first stop and the top of the light-emitting part is 0.6mm. After assembly, the total vertical dimension is (3.5+2.2+0.6)mm×2+40mm, totaling 52.6mm.

[0056] In a specific embodiment, the snap-fit ​​structure 10 of this application adopts the following reference: Figure 6 and Figure 7 The first lens 200 has a first flange 220 with a diameter of 0.6 mm. The height of the protrusion 221 (the distance between the top of the protrusion 221 and the top of the light-emitting part 211) is 2.3 mm. The height of the light-emitting part 211 of the first lens 200 is 40 mm. The width of the baffle 120 of the lens bracket 100 is 1.3 mm. The thickness of the bracket body 110 is 2.2 mm. The depth of the recessed groove 114 is 0.4 mm or more. The assembly gap between the bottom of the baffle 120 and the top of the light-emitting part 211 is 0.6 mm. At this time, the actual engagement height of the protrusion 221 is (2.3-0.6) mm, that is, 1.7 mm. The sum of the recessed depth h1 (0.4 mm or more) of the recessed groove 114 and the width h2 (1.3 mm) of the baffle 120 is compatible with this dimension, which can meet the engagement requirement. After assembly, the total vertical dimension is (1.3+2.2+0.6)mm×2+40mm, which is 48.2mm.

[0057] Therefore, by adopting the solution of this application embodiment, the opening size of the first opening 111 of the lens bracket 100 in the vertical direction can be significantly reduced, which is beneficial to improving the installation adaptability and convenience of the vehicle lamp module 1 in the vehicle lamp.

[0058] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, in some embodiments, the first snap-fit ​​member 130 includes a cantilever body 131 and a guide portion 132 and a limiting portion 133 disposed on the lower surface of the cantilever body 131. The upper surface of the cantilever body 131 is flush with the outer wall surface of the top of the bracket body 110, and the lower surface of the cantilever body 131 is flush with the inner wall surface of the top of the bracket body 110. A first limiting cavity 115 is formed between the limiting portion 133, the stop edge 120, and the recessed groove 114. The thickness of the guide portion 132 gradually increases along the direction from the guide portion 132 to the limiting portion 133.

[0059] This embodiment presents the specific structure of the first snap-fit ​​member 130. The thickness of the cantilever body 131 is the same as the thickness of the bracket body 110. This not only improves the aesthetic appearance of the lens bracket 100, but also ensures the cleanliness of the internal space and the unobstructed optical path.

[0060] The guide portion 132 can guide the assembly of the first lens 200. The thickness of the guide portion 132 gradually increases, that is, the guide portion 132 forms a guiding slope, providing a smooth guiding channel for the sliding of the protrusion 221. This helps to reduce assembly resistance and improve the smoothness of the assembly of the first lens 200.

[0061] A first limiting cavity 115 is formed between the limiting part 133, the stop edge 120, and the recessed groove 114. When the protrusion 221 is in place, the limiting part 133 can prevent the first lens 200 from moving towards the side closer to the second opening 112, and the stop edge 120 and the recessed groove 114 can prevent the first lens 200 from disengaging from the first opening 111, thereby improving the reliability and stability of the snap-fit.

[0062] like Figure 7 As shown, in some embodiments, there is a first distance D1 between the end of the guide portion 132 away from the limiting portion 133 and the end of the limiting portion 133 away from the guide portion 132, and a second distance D2 between the bottom of the stop edge 120 and the outer wall surface of the top of the bracket body 110, where D1 / D2≥5 / 2.

[0063] The above definition means that in order to move the protrusion 221 a distance D2 in the vertical direction, a guide path at least 2.5 times D2 must be provided in the horizontal direction (optical path direction). That is, the guide part 132 and the limiting part 133 can form a guide path that changes gradually.

[0064] With the height of the protrusion 221 reduced, it is understandable that the distance between the protrusion 221 and the top of the light-emitting part 211 will also decrease. Thus, when assembling the first lens 200, if the protrusion 221 of the first lens 200 has not yet contacted the guide part 132, the guide part 132 and the limiting part 133 are prone to interference with the light-emitting part 211, resulting in defects such as scratches and wear.

[0065] In this embodiment, through the aforementioned limitations, firstly, the guide portion 132 has a relatively small rate of change in the vertical direction, resulting in a smaller space occupied by the final limiting portion 133 in the vertical direction. This reduces the probability of interference between the limiting portion 133 and the light-emitting portion 211 during assembly, improving defects such as scratches and wear. Secondly, the smooth assembly path also helps reduce assembly resistance, improving assembly smoothness and feel.

[0066] like Figure 7 As shown, in some embodiments, the guide portion 132 has a guide surface 1321, the angle α between the guide surface 1321 and the first direction is less than or equal to 20°, and the first direction is the direction from the second opening 112 to the first opening 111.

[0067] This embodiment limits the maximum permissible angle of the guide surface 1321 of the guide portion 132. Similarly, when the angle between the guide surface 1321 and the first direction is less than or equal to 20°, the guide portion 132 can be kept relatively smooth, resulting in a smaller space occupied by the final limiting portion 133 in the vertical direction. This reduces the probability of interference between the limiting portion 133 and the light-emitting portion 211 during assembly, improving defects such as scratches and wear. Furthermore, the smooth assembly path also helps reduce assembly resistance, improving assembly smoothness and feel.

[0068] like Figure 6 and Figure 7 As shown, in some embodiments, the limiting portion 133 has a first limiting surface 1331 and a second limiting surface 1332 on the side surface near the stop edge 120. The second limiting surface 1332 is located above the first limiting surface 1331 and is set at an angle to the first limiting surface 1331. The edge of the second limiting surface 1332 facing away from the first limiting surface 1331 is located above the lower surface of the cantilever body 131. (The last sentence appears to be incomplete and possibly refers to an appendix.) Figure 7 The dashed line L1 in the figure represents the projection line of the lower surface of the cantilever body 131, and also the projection line of the top inner wall surface of the support body 110.

[0069] Since the edge of the second limiting surface 1332 facing away from the first limiting surface 1331 is located above the lower surface of the cantilever body 131, the second limiting surface 1332 will occupy part of the space in the thickness direction of the cantilever body 131. This is beneficial to improve the engagement amount of the limiting part 133 and the protrusion 221, thereby helping to reduce the opening size of the first opening 111 in the vertical direction while ensuring the stability and reliability of the snap-fit ​​connection.

[0070] like Figure 5 , Figure 8 As shown, in some embodiments, the support body 110 has a second through hole 116 on the side in the left-right direction, and a second snap-fit ​​member 140 is provided in the second through hole 116. A second limiting cavity (not shown in the figure) is formed between the second snap-fit ​​member 140 and the stop edge 120. The first lens 200 also includes a second flange 240 provided on the side in the left-right direction of the lens body 210. The second flange 240 is snap-fitted with the second limiting cavity, and a guide notch 241 is provided on the second flange 240.

[0071] The structure of the second snap-fit ​​member 140 can be the same as that of the first snap-fit ​​member 130. In this embodiment, the bracket body 110 is provided with a second through hole 116 and a second snap-fit ​​member 140 on the side walls in the left and right directions. That is, the first lens 200 is not fixed by snap-fit ​​on the top and bottom sides, but by snap-fit ​​on the top and sides. This arrangement helps to further reduce the opening size of the first opening 111 in the vertical direction.

[0072] Furthermore, the guide notch 241 on the second flange 240 also helps to improve the ease of assembly of the first lens 200.

[0073] Optionally, such as Figure 1 and Figure 2 As shown, there are two first through holes 113 located on the top left and right sides of the bracket body 110, and there are also two corresponding first snap-fit ​​pieces 130 and protrusions 221.

[0074] Furthermore, such as Figure 5 and Figure 8 As shown, there are two second through holes 116, which are respectively located on opposite sides of the bracket body 110 in the left-right direction. There are also two corresponding second snap-fit ​​pieces 140 and second flanges 240.

[0075] This helps to improve the reliability and stability of the first lens 200 being snapped in place.

[0076] Secondly, embodiments of this application propose a vehicle lighting module 1. For example... Figure 8 and Figure 9As shown, the vehicle headlight module 1 includes a light source (not shown in the figure), a second lens 300, and a snap-fit ​​structure 10 as described in the first aspect. The second lens 300 is disposed inside the lens bracket 100 and close to the second opening 112, and the light source is located on the side of the second lens 300 away from the lens bracket 100.

[0077] The headlight module 1 of this application embodiment uses the snap-fit ​​structure 10 described in the first aspect. This helps to reduce the vertical opening size of the first opening 111 while ensuring the stability and reliability of the snap-fit ​​connection, thereby improving the installation adaptability and convenience of the headlight module 1 within the headlight. Furthermore, since the width of the first flange 220 is significantly reduced, and it changes from a wide flange in related technologies to a narrow flange with localized protrusions, it helps to reduce the material and cost of the first lens 200, achieving the requirement of lightweight design. In addition, after the first lens 200 is installed, when viewed from the light-emitting surface of the first lens 200, the obstruction 120 of the lens bracket 100 becomes narrower, with most of it being the optical surface of the first lens 200. This also helps to achieve a narrow bezel effect on the light-emitting surface, thereby improving the refinement and aesthetics of the headlight module 1.

[0078] like Figure 8 and Figure 9 As shown, in some embodiments, the second lens 300 includes a low beam distribution lens 310 and a high beam distribution lens 320 arranged in the vertical direction. The vehicle lamp module 1 also includes a baffle assembly 400 disposed between the first lens 200 and the second lens 300. The baffle assembly 400 includes an optical baffle 410 and a heat insulation sheet 420. The heat insulation sheet 420 is disposed inside the bracket body 110 and fixedly connected to the bracket body 110. The optical baffle 410 is riveted to the heat insulation sheet 420. The optical baffle 410 is used to form a low beam cutoff line.

[0079] In this embodiment, the headlight module 1 is a headlight module 1 that integrates high and low beams. The light emitted by the low beam source is emitted through the low beam light distribution lens 310 and the first lens 200 to form a low beam pattern. The light emitted by the high beam source is emitted through the high beam light distribution lens 320 and the first lens 200 to form a high beam pattern.

[0080] The baffle assembly 400 includes an optical baffle 410 and a heat insulation sheet 420. The optical baffle 410 can form a cutoff line with the low left and high right for near light, and the heat insulation sheet 420 can block heat transfer to the support body 110 and also has the function of preventing solar ablation.

[0081] By riveting the optical baffle 410 to the heat insulation sheet 420, it is also beneficial to reduce the number of parts in the headlight module 1, thereby improving assembly efficiency.

[0082] Thirdly, embodiments of this application provide a vehicle light, including the vehicle light module 1 described in the second aspect.

[0083] The vehicle lights in this embodiment use the vehicle light module 1 described above, and therefore can achieve the same effect as the vehicle light module 1 and the snap-fit ​​structure 10 described above.

[0084] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A snap-fit ​​structure, characterized in that, include: A lens holder includes a holder body, a stop edge, and a first snap-fit ​​component. The holder body has a first opening and a second opening that are disposed opposite to each other. The top of the holder body is provided with a first through hole. The stop edge is disposed circumferentially in the first opening. The inner wall surface of the top of the holder body is provided with a recessed groove. The recessed groove is located between the inner wall of the stop edge and the side wall of the first through hole. The first snap-fit ​​component is located in the first through hole and connected to the holder body. The first snap-fit ​​component, the stop edge, and the recessed groove together form a first limiting cavity. The first lens includes a lens body and a first flange disposed on the top of the lens body, the first flange having a protrusion adapted to the first limiting cavity.

2. The snap-fit ​​structure according to claim 1, characterized in that, The lens body includes a light-emitting part, and the distance between the top of the first flange and the top of the light-emitting part is less than or equal to 1 mm; And / or, the lens body includes a light-emitting portion, and the distance between the top of the protrusion and the top of the light-emitting portion is less than or equal to 4 mm and greater than or equal to 2 mm.

3. The snap-fit ​​structure according to claim 1, characterized in that, The first snap-fit ​​component includes a cantilever body and a guide portion and a limiting portion disposed on the lower surface of the cantilever body. The upper surface of the cantilever body is flush with the outer wall surface of the top of the bracket body, and the lower surface of the cantilever body is flush with the inner wall surface of the top of the bracket body. The first limiting cavity is formed between the limiting part and the stop edge, and the thickness of the guide part gradually increases along the direction from the guide part to the limiting part.

4. The snap-fit ​​structure according to claim 3, characterized in that, There is a first distance D1 between the end of the guide portion away from the limiting portion and the end of the limiting portion away from the guide portion, and there is a second distance D2 between the bottom of the stop edge and the outer wall surface at the top of the bracket body, where D1 / D2≥5 / 2.

5. The snap-fit ​​structure according to claim 3, characterized in that, The guide portion has a guide surface, and the angle between the guide surface and the first direction is less than or equal to 20°, where the first direction is the direction from the second opening to the first opening.

6. The snap-fit ​​structure according to claim 3, characterized in that, The limiting part has a first limiting surface and a second limiting surface on the side surface near the stop edge. The second limiting surface is located above the first limiting surface and is set at an angle to the first limiting surface. The edge of the second limiting surface that is opposite to the first limiting surface is located above the lower surface of the cantilever body.

7. The snap-fit ​​structure according to claim 1, characterized in that, The bracket body has a second through hole on its side in the left-right direction, and a second snap-fit ​​component is provided in the second through hole. The second snap-fit ​​component and the stop edge form a second limiting cavity. The first lens further includes a second flange disposed on the side of the lens body in the left-right direction. The second flange engages with the second limiting cavity, and a guide notch is provided on the second flange.

8. A vehicle headlight module, characterized in that, include: light source; Second lens; as well as According to any one of claims 1 to 7, the snap-fit ​​structure, the second lens is disposed in the bracket body and close to the second opening, and the light source is located on the side of the second lens away from the bracket body.

9. The vehicle headlight module according to claim 8, characterized in that, The second lens includes a low-beam light distribution lens and a high-beam light distribution lens arranged in a vertical direction; The headlight module also includes a baffle assembly disposed between the first lens and the second lens. The baffle assembly includes an optical baffle and a heat insulation sheet. The heat insulation sheet is disposed in the bracket body and fixedly connected to the bracket body. The optical baffle is riveted to the heat insulation sheet. The optical baffle is used to form a low beam cutoff line.

10. A vehicle light, characterized in that, Includes the vehicle lighting module as described in claim 8 or 9.

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