Identification piece and safety air bag assembly

Abstract

The utility model provides an identification piece and a safety air bag assembly, and relates to the technical field of safety air bags. The marking piece comprises a marking piece body and a first light source, the marking piece body is provided with a first light-transmitting area and a second light-transmitting area, the thickness of at least part of the marking piece body in the first light-transmitting area is smaller than that of the marking piece body in the second light-transmitting area, and the marking piece body is provided with a first incident plane in the first light-transmitting area. The marking piece main body is provided with a second incident surface in the second light-transmitting area; the first light source and the marking piece body are relatively fixed, the distance between the first light source and any point on the first incident plane is larger than the distance between the first light source and any point on the second incident plane, and the marking piece can improve the uniformity of light emitting.

Description

Technical Field

[0001] This application relates to the field of airbag technology, and more specifically, to an identification element and an airbag assembly. Background Technology

[0002] With the continuous advancement of automotive safety technology, airbags have become an indispensable passive safety device in modern automobiles. An airbag system typically consists of sensors, a control unit, and an airbag module, capable of rapidly inflating to protect occupants in the event of a collision. Currently, airbags are widely deployed in various locations such as the steering wheel, dashboard, side seats, and roof, with steering wheel airbags being particularly common.

[0003] To enhance brand recognition and aesthetics, many automakers have added brand logos to the airbag covers of steering wheel airbags. In recent years, with the increasing demand for technological sophistication and personalization in automotive interior design, some logos have also integrated lighting functions. However, such logos still have shortcomings in terms of uniform light emission. Utility Model Content

[0004] The purpose of this application includes, for example, providing an identifier that can improve the uniformity of light emission.

[0005] The purpose of this application also includes providing an airbag assembly in which the marking element can improve the uniformity of light emission.

[0006] The embodiments of this application can be implemented as follows:

[0007] Embodiments of this application provide an identification element, which includes:

[0008] The sign body has a first light-transmitting area and a second light-transmitting area. The thickness of the sign body in the first light-transmitting area is at least partially smaller than the thickness of the sign body in the second light-transmitting area. The sign body has a first incident surface in the first light-transmitting area and a second incident surface in the second light-transmitting area.

[0009] A first light source is fixed relative to the main body of the marker, and the distance from the first light source to any point on the first incident surface is greater than the distance from the first light source to any point on the second incident surface.

[0010] Optionally, at least a portion of the main body of the marker is recessed inward from the first incident surface in the first light-transmitting area.

[0011] Optionally, the first light-transmitting area is arranged around the second light-transmitting area, and the main body of the marker is recessed inward from the first incident surface in the portion of the first light-transmitting area away from the second light-transmitting area.

[0012] Optionally, the inwardly recessed portion of the first incident surface is provided with a textured structure.

[0013] Optionally, at least a portion of the main body of the marker in the second light-transmitting area is provided to protrude outward from the second incident surface.

[0014] Optionally, the first light-transmitting area is arranged around the second light-transmitting area, and the main body of the marker protrudes outward from the second incident surface in the portion of the second light-transmitting area near the center of the second light-transmitting area.

[0015] Optionally, the marker further includes a second light source, which is fixed relative to the marker body and is closer to the first incident surface than the first light source.

[0016] Optionally, the marker further includes a circuit board and a base shell. The first light source is disposed on the circuit board, the circuit board is disposed on the base shell, the base shell is connected to the main body of the marker, the main body of the marker is provided with a snap-fit ​​groove, and the circuit board is provided with a snap-fit ​​part that snaps into the snap-fit ​​groove.

[0017] Optionally, a limiting post is provided on the bottom shell, and a limiting hole is provided on the circuit board to cooperate with the limiting post.

[0018] Optionally, the main body of the marker is welded to the bottom shell, and the bottom shell has a retaining edge at the weld between the main body of the marker and the bottom shell.

[0019] This application also provides an airbag assembly, including an airbag cover and the aforementioned identification element, wherein the identification element further includes a bottom shell connected to the main body of the identification element, and the bottom shell is disposed on the airbag cover.

[0020] Optionally, the airbag cover has a front and a back, the front of the airbag cover has a groove, and the bottom shell is disposed in the groove.

[0021] Optionally, the front of the airbag cover and the inner wall of the groove are both provided with a leather layer.

[0022] The beneficial effects of the identification element and airbag assembly provided in this application embodiment include, for example: providing an identification element comprising an identification element body and a first light source, the identification element body having a first light-transmitting area and a second light-transmitting area, the thickness of the identification element body in the first light-transmitting area being at least partially less than the thickness of the identification element body in the second light-transmitting area, the identification element body having a first incident surface in the first light-transmitting area, and the identification element body having a second incident surface in the second light-transmitting area; the first light source being relatively fixed to the identification element body, and the distance from the first light source to any point on the first incident surface being greater than the distance from the first light source to any point on the second incident surface.

[0023] Since the distance from the first light source to any point on the first incident surface is greater than the distance from the first light source to any point on the second incident surface, the amount of illumination from the first light source to the first incident surface is less than the amount of illumination from the first light source to the second incident surface. In order to balance the brightness of the first and second light-transmitting areas, at least a portion of the main body of the sign is made thinner in the first light-transmitting area than in the second light-transmitting area, and the thickness of at least a portion of the main body of the sign in the first light-transmitting area is less than the thickness of the main body of the sign in the second light-transmitting area. As a result, the overall light transmittance of the first light-transmitting area is increased compared to the second light-transmitting area, thereby ensuring that the brightness of the first and second light-transmitting areas remains basically consistent and improving the uniformity of light emission from the sign. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, 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 this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is an exploded view of the airbag assembly in an embodiment of this application;

[0026] Figure 2 This is a cross-sectional view of the identifier in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram illustrating the first type of recess in an embodiment of this application;

[0028] Figure 4 This is a schematic diagram illustrating the second type of recess in an embodiment of this application;

[0029] Figure 5 This is a schematic diagram illustrating the third type of recess in an embodiment of this application;

[0030] Figure 6 This is a schematic diagram illustrating the circuit board fixing method in an embodiment of this application;

[0031] Figure 7 This is a schematic diagram of the circuit board in an embodiment of this application;

[0032] Figure 8 This is an exploded view showing the mounting relationship between the circuit board and the bottom shell in an embodiment of this application;

[0033] Figure 9 This is a cross-sectional view illustrating the mounting relationship between the circuit board and the bottom shell in an embodiment of this application;

[0034] Figure 10 This is a schematic diagram illustrating the connection relationship between the main body of the marker and the bottom shell in an embodiment of this application;

[0035] Figure 11 This is an exploded view showing the installation relationship between the marker and the airbag cover in an embodiment of this application.

[0036] Icons: 100-Airbag cover; 110-Groove; 111-Insertion hole; 120-Leather layer; 200-Identification piece; 210-Identification piece body; 211-First light-transmitting area; 2111-First incident surface; 2112-Recessed part; 212-Second light-transmitting area; 2121-Second incident surface; 2122-Protrusion; 213-Non-light-transmitting area; 214-Snap-fit ​​groove; 220-First light source; 230-Bottom shell; 231-Rib; 232-Limiting post; 233-Side guard; 234-Insertion rod; 240-Second light source; 250-Circuit board; 251-Snap-fit ​​part; 252-Limiting hole. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0039] 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.

[0040] In the description of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, 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, and therefore should not be construed as a limitation of this application.

[0041] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0042] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0043] As disclosed in the background section, existing luminous markers on the airbag cover of steering wheel airbags suffer from deficiencies in terms of uniform light emission. Specifically, some areas of the marker are brighter than others, resulting in uneven overall illumination. This uneven illumination not only affects the visual appeal of the marker but may also interfere with the driver's vision, thereby impacting driving safety. Embodiments of this application also provide an airbag assembly, at least to address the aforementioned technical problems.

[0044] Please refer to Figure 1 , Figure 2 The airbag assembly provided in the embodiments of this application includes an airbag cover 100 and an identification element 200. The identification element 200 includes an identification element body 210, a first light source 220, and a bottom shell 230 connected to the identification element body 210. The bottom shell 230 is disposed on the airbag cover 100. The identification element body 210 has a first light-transmitting area 211 and a second light-transmitting area 212. The thickness of the identification element body 210 in the first light-transmitting area 211 is at least partially less than the thickness of the identification element body 210 in the second light-transmitting area 212. The identification element body 210 has a first incident surface 2111 in the first light-transmitting area 211 and a second incident surface 2121 in the second light-transmitting area 212. The first light source 220 is fixed relative to the identification element body 210. The distance from the first light source 220 to any point on the first incident surface 2111 is greater than the distance from the first light source 220 to any point on the second incident surface 2121.

[0045] In the thickness direction of the sign body 210, the thickness of the sign body 210 in the first light-transmitting region 211 is at least partially less than the thickness of the sign body 210 in the second light-transmitting region 212, such that the overall light transmittance of the sign body 210 in the first light-transmitting region 211 is greater than that in the second light-transmitting region 212. For example, the thickness of a portion of the sign body 210 in the first light-transmitting region 211 is less than the thickness of the sign body 210 in the second light-transmitting region 212, while the thickness of another portion of the sign body 210 in the first light-transmitting region 211 is equal to the thickness of the sign body 210 in the second light-transmitting region 212; or, the thickness of any portion of the sign body 210 in the first light-transmitting region 211 is less than the thickness of the sign body 210 in the second light-transmitting region 212.

[0046] The first incident surface 2111 of the main body 210 in the first light-transmitting area 211 and the second incident surface 2121 of the main body 210 in the second light-transmitting area 212 both face the bottom shell 230. The first light source 220 is fixed to the bottom shell 230. The light emitted by the first light source 220 enters the first light-transmitting area 211 through the first incident surface 2111 and exits, and enters the second light-transmitting area 212 through the second incident surface 2121 and exits.

[0047] It should be noted that the brightness of the light-transmitting area is equal to the product of the amount of light entering and the light transmittance of the light-transmitting area. Since the distance from the first light source 220 to any point on the first incident surface 2111 is greater than the distance from the first light source 220 to any point on the second incident surface 2121, the amount of light entering the first incident surface 2111 from the first light source 220 is less than the amount of light entering the second incident surface 2121 from the first light source 220. In order to balance the brightness of the first light-transmitting area 211 and the second light-transmitting area 212, the light transmittance of the sign body 210 in the first light-transmitting area 211 needs to be greater than the light transmittance of the sign body 210 in the second light-transmitting area 212.

[0048] In this embodiment, at least a portion of the main body 210 of the sign is thinned compared to the second light-transmitting area 212 in the first light-transmitting area 211. The overall light transmittance of the first light-transmitting area 211 is increased compared to the second light-transmitting area 212, thereby ensuring that the brightness of the first light-transmitting area 211 and the second light-transmitting area 212 remains basically consistent, thus improving the uniformity of light emission of the sign 200.

[0049] In some embodiments, at least a portion of the sign body 210 in the first light-transmitting area 211 is recessed inward by the first incident surface 2111.

[0050] It should be noted that at least a portion of the main body 210 of the sign is recessed inward from the first incident surface 2111 in the first light-transmitting area 211, that is, at least a portion of the main body 210 of the sign is recessed inward from the first incident surface 2111 in the first light-transmitting area 211 in a direction away from the bottom shell 230.

[0051] The main body 210 of the sign is recessed inward from the first incident surface 2111 in at least a portion of the first light-transmitting area 211. The thickness of the portion of the main body 210 of the sign is recessed inward from the first incident surface 2111 in the first light-transmitting area 211 is reduced, thereby increasing the light transmittance of the first light-transmitting area 211. The propagation distance of the light emitted by the first light source 220 in the portion of the first light-transmitting area 211 recessed inward from the first incident surface 2111 is reduced, thereby reducing the energy loss of light due to absorption by the medium.

[0052] Please refer to Figures 3-5 In an optional embodiment, a portion of the sign body 210 in the first light-transmitting area 211 is recessed inward from the first incident surface 2111 to form a recessed portion 2112. The remaining portion of the sign body 210 in the first light-transmitting area 211 corresponding to the first incident surface 2111 and the sign body 210 in the second light-transmitting area 212 are not recessed. The thickness of the remaining portion of the sign body 210 in the first light-transmitting area 211 corresponding to the first incident surface 2111 is equal to the thickness of the sign body 210 in the second light-transmitting area 212.

[0053] On the cross section along the thickness direction of the bottom shell 230, passing through the line connecting the main body 210 of the marking component and the bottom shell 230, the cross-sectional shape of the recess 2112 is arc-shaped or polygonal. The arc shape can be a circular arc, and the polygon shape can be a square, rectangle, trapezoid, etc., without limitation.

[0054] In another optional embodiment, the main body 210 of the sign is recessed inward from the first incident surface 2111 in any part of the first light-transmitting area 211. That is, the main body 210 of the sign is thinned as a whole from the first incident surface 2111 in the first light-transmitting area 211. The main body 210 of the sign is not recessed in the second light-transmitting area 212. The thickness of any part of the main body 210 of the sign in the first light-transmitting area 211 corresponding to the first incident surface 2111 is less than the thickness of the main body 210 of the sign in the second light-transmitting area 212.

[0055] In some embodiments, the first light-transmitting area 211 is disposed around the second light-transmitting area 212, and the portion of the sign body 210 in the first light-transmitting area 211 that is away from the second light-transmitting area 212 is recessed inward from the first incident surface 2111.

[0056] The second light-transmitting area 212 is located at the center of the main body 210 of the sign. The center of the bottom shell 230 is directly opposite the center of the main body 210 of the sign. Correspondingly, the first light source 220 may include a plurality of LEDs spaced apart around the center of the bottom shell 230. The plurality of LEDs are close to the center of the bottom shell 230. The number of LEDs can be determined according to the actual working conditions. For example, the number of LEDs can be two or three or more.

[0057] With the first light source 220 located at the center of the bottom shell 230, the amount of light entering at the edge of the first incident surface 2111 is minimal. Therefore, the part of the main body 210 of the sign is recessed inward from the first incident surface 2111 in the first light-transmitting area 211 away from the second light-transmitting area 212. The propagation distance of the light emitted by the first light source 220 in the recessed part of the first light-transmitting area 211 is reduced, and the overall brightness of the first light-transmitting area 211 can be basically consistent with that of the second light-transmitting area 212.

[0058] In some other embodiments, the first light-transmitting area 211 is located at the center of the sign body 210, and the second light-transmitting area 212 is arranged around the first light-transmitting area 211. The sign body 210 is recessed inward from the first incident surface 2111 in the middle of the first light-transmitting area 211. Correspondingly, the first light source 220 may include a plurality of LEDs spaced apart around the center of the bottom shell 230, and the plurality of LEDs are all located at the edge of the bottom shell 230.

[0059] When the first light source 220 is located at the edge of the bottom shell 230, the amount of light entering at the center of the first incident surface 2111 is the smallest. At this time, setting the main body 210 of the sign to be recessed inward from the first incident surface 2111 in the middle of the first light-transmitting area 211 can meet the requirements of brightness uniformity to a certain extent.

[0060] In some embodiments, the inwardly recessed portion of the first incident surface 2111 is provided with a textured structure.

[0061] The texture structure can be formed by setting a continuous concave or convex surface in the inward recessed part of the first incident surface 2111. By setting a texture structure in the inward recessed part of the first incident surface 2111, the light passing through the inward recessed part of the first incident surface 2111 can have a better uniform light effect.

[0062] Of course, the design of the texture structure can be diversified according to actual needs. For example, by setting a randomly distributed texture in the inward recessed part of the first incident surface 2111, the regular reflection and refraction path of light can be effectively broken, the mixing effect of light can be increased, and thus the uniform light effect can be improved.

[0063] In some embodiments, at least a portion of the sign body 210 in the second light-transmitting region 212 is provided to protrude outward from the second incident surface 2121.

[0064] It should be noted that at least a portion of the sign body 210 in the second light-transmitting area 212 protrudes outward from the second incident surface 2121, that is, at least a portion of the sign body 210 in the second light-transmitting area 212 protrudes from the second incident surface 2121 toward the bottom shell 230.

[0065] Since the distance from the first light source 220 to any point on the first incident surface 2111 is greater than the distance from the first light source 220 to any point on the second incident surface 2121, at least a portion of the sign body 210 in the first light-transmitting area 211 can be recessed inward from the first incident surface 2111, while at least a portion of the sign body 210 in the second light-transmitting area 212 can be protruded outward from the second incident surface 2121, so as to balance the brightness of the first light-transmitting area 211 and the second light-transmitting area 212.

[0066] The main body 210 of the sign is provided to protrude outward from the second incident surface 2121 in at least a portion of the second light-transmitting area 212. The thickness of the portion of the main body 210 protruding outward from the first incident surface 2111 in the second light-transmitting area 212 is increased, thereby reducing the light transmittance of the second light-transmitting area 212. The propagation distance of the light emitted by the first light source 220 in the portion of the second light-transmitting area 212 protruding outward from the second incident surface 2121 is increased, thereby reducing the brightness of the second light-transmitting area 212 so that the brightness of the first light-transmitting area 211 and the brightness of the second light-transmitting area 212 are basically the same.

[0067] In an optional embodiment, a portion of the sign body 210 in the second light-transmitting area 212 is provided to protrude outward from the second incident surface 2121 to form a protrusion 2122, while the remaining portion of the sign body 210 in the second light-transmitting area 212 corresponding to the second incident surface 2121 is not designed to protrude.

[0068] In another optional embodiment, the main body 210 of the sign is provided to protrude outward from the second incident surface 2121 in any part of the second light-transmitting area 212, that is, the main body 210 of the sign is thickened as a whole by the second incident surface 2121 in the second light-transmitting area 212.

[0069] In some embodiments, the first light-transmitting area 211 is disposed around the second light-transmitting area 212, and the portion of the sign body 210 near the center of the second light-transmitting area 212 is provided to protrude outward from the second incident surface 2121.

[0070] When the first light source 220 is close to the center of the bottom shell 230, the amount of light entering the center of the second incident surface 2121 is the largest. Therefore, the part of the main body 210 of the sign is set to protrude outward from the second incident surface 2121 near the center of the second light-transmitting area 212. The propagation distance of the light emitted by the first light source 220 from the part of the second light-transmitting area 212 protruding outward from the second incident surface 2121 is increased, so that the brightness of the first light-transmitting area 211 and the brightness of the second light-transmitting area 212 are basically consistent.

[0071] In some other embodiments, the first light-transmitting area 211 is located at the center of the sign body 210, the second light-transmitting area 212 is arranged around the first light-transmitting area 211, and the part of the sign body 210 away from the first light-transmitting area 211 in the second light-transmitting area 212 is arranged to protrude outward from the second incident surface 2121. Correspondingly, the first light source 220 may include a plurality of LEDs arranged at intervals around the center of the bottom shell 230, and the plurality of LEDs are all located at the edge of the bottom shell 230.

[0072] When the first light source 220 is located at the edge of the bottom shell 230, the amount of light entering at the edge of the second incident surface 2121 is the largest. At this time, the part of the main body 210 of the sign is convex outward from the second incident surface 2121 in the second light-transmitting area 212 away from the first light-transmitting area 211, which can meet the requirements of brightness uniformity to a certain extent.

[0073] In some embodiments, the sign 200 further includes a second light source 240, which is fixed relative to the sign body 210, and the second light source 240 is closer to the first incident surface 2111 than the first light source 220.

[0074] Since the distance from the first light source 220 to any point on the first incident surface 2111 is greater than the distance from the first light source 220 to any point on the second incident surface 2121, at least a portion of the main body 210 of the sign body is recessed inward in order to supplement the brightness of the first light-transmitting area 211. If the brightness of the first light-transmitting area 211 is still less than the brightness of the second light-transmitting area 212, a second light source 240 is provided at a position closer to the first incident surface 2111 than the first light source 220. The second light source 240 can further enhance the brightness of the first light-transmitting area 211.

[0075] When the first light source 220 is close to the center of the bottom shell 230, the first light-transmitting area 211 is arranged around the second light-transmitting area 212. The amount of light entering at the edge of the first incident surface 2111 is the smallest. The second light source 240 may include a plurality of LEDs arranged at intervals around the center of the bottom shell 230. These plurality of LEDs are all located at the edge of the bottom shell 230, which further supplement the brightness of the first light-transmitting area 211.

[0076] When the first light source 220 is located at the edge of the bottom shell 230, the second light-transmitting area 212 is set around the first light-transmitting area 211. The amount of light entering at the center of the first incident surface 2111 is the smallest. At this time, the second light source 240 can be set at the center of the bottom shell 230 to further supplement the brightness of the first light-transmitting area 211.

[0077] In addition to the first light-transmitting area 211 and the second light-transmitting area 212, the main body 210 of the sign may also have a non-light-transmitting area 213, and the light emitted by the first light source 220 and the second light source 240 can only be emitted through the first light-transmitting area 211 and the second light-transmitting area 212.

[0078] The portions of the sign body 210 located in the first light-transmitting area 211 and the second light-transmitting area 212 are both made of the same light-transmitting material, while the portions of the sign body 210 located in the non-light-transmitting area 213 are made of a non-light-transmitting material. For example, the light-transmitting material can be plexiglass or PC material, and the non-light-transmitting material can be ABS or PVC material, without limitation.

[0079] The LEDs mentioned in the embodiments of this application can all be selected as 360-degree scattering LEDs that do not emit light from the top. In other embodiments, the first light source 220 and the second light source 240 can also be selected as COBs that generate uniform surface light sources.

[0080] Please refer to Figure 6 , Figure 7 In some embodiments, the marker 200 further includes a circuit board 250, a first light source 220 is disposed on the circuit board 250, the circuit board 250 is disposed on the bottom shell 230, the bottom shell 230 is connected to the marker body 210, the marker body 210 is provided with a snap-fit ​​groove 214, and the circuit board 250 is provided with a snap-fit ​​part 251 that snaps into the snap-fit ​​groove 214.

[0081] The circuit board 250 is disposed on the surface of the bottom shell 230 facing the main body 210 of the sign. The first light source 220 is disposed on the surface of the circuit board 250 facing the main body 210 of the sign. If the sign 200 also includes a second light source 240, the second light source 240 is also disposed on the surface of the circuit board 250 facing the main body 210 of the sign.

[0082] Optionally, multiple snap-fit ​​grooves 214 may be formed on the main body 210 of the sign. Correspondingly, multiple snap-fit ​​parts 251 are provided on the side of the circuit board 250 protruding outward. The multiple snap-fit ​​parts 251 are snapped into the multiple snap-fit ​​grooves 214 in a one-to-one correspondence, so as to fix the circuit board 250 between the bottom shell 230 and the main body 210 of the sign.

[0083] When the first light-transmitting area 211 surrounds the second light-transmitting area 212, the main body 210 of the sign extends toward the bottom shell 230 and is provided with a snap-fit ​​groove 214 in the portion of the first light-transmitting area 211 near the edge of the first light-transmitting area 211. In order to ensure the stability of the circuit board 250, a rib 231 is provided on the surface of the bottom shell 230 facing the circuit board 250. The rib 231 abuts against the circuit board 250 so that the snap-fit ​​portion 251 of the circuit board 250 is stably snapped into the snap-fit ​​groove 214.

[0084] Please refer to Figure 8 , Figure 9 In some embodiments, a limiting post 232 is provided on the bottom shell 230, and a limiting hole 252 that cooperates with the limiting post 232 is provided on the circuit board 250.

[0085] By matching the limiting post 232 on the bottom shell 230 with the limiting hole 252 on the circuit board 250, it is not easy for the circuit board 250 and the bottom shell 230 to move relative to each other.

[0086] In an optional embodiment, the bottom shell 230 is provided with two limiting posts 232, and the circuit board 250 is provided with two limiting holes 252, with the two limiting posts 232 respectively cooperating with the two limiting holes 252.

[0087] Both limiting posts 232 can be selected as cylindrical with a circular end face. Correspondingly, in order to reduce the assembly difficulty while ensuring the relative stability between the circuit board 250 and the bottom shell 230, one limiting hole 252 is a circular hole and the other limiting hole 252 is an oblong hole.

[0088] Please refer to Figure 10 In some embodiments, the main body 210 of the marker is welded to the bottom shell 230, and the bottom shell 230 is provided with a retaining edge 233 at the welding point between the main body 210 of the marker and the bottom shell 230.

[0089] The main body 210 of the marker and the bottom shell 230 can be ultrasonically welded. The retaining edge 233 is set on the edge of the bottom shell 230 and protrudes towards the main body 210 of the marker. The part of the marker body 210 and the bottom shell 230 to be welded is located inside the retaining edge 233. During the welding process of the main body 210 of the marker and the bottom shell 230, the retaining edge 233 can block the overflow of welding material, thereby improving the product quality.

[0090] When the first light-transmitting area 211 surrounds the second light-transmitting area 212, the main body 210 of the sign extends toward the bottom shell 230 in the portion of the first light-transmitting area 211 near the edge of the first light-transmitting area 211 and forms a stepped structure. Part of the stepped structure abuts against the edge 233, and another part extends into the inner side of the edge 233. The part of the stepped structure extending into the inner side of the edge 233 may be provided with a triangular protrusion so as to be embedded in the bottom shell 230. Welding is performed at the abutment of the stepped structure and the edge 233 to fix the main body 210 of the sign to the bottom shell 230.

[0091] In some other embodiments, the main body 210 of the marker and the bottom shell 230 can also be fixedly connected by adhesive or screw, and there is no limitation on this.

[0092] Please refer to Figure 11 In some embodiments, the airbag cover 100 has a front and a back, and a groove 110 is provided on the front of the airbag cover 100, and the bottom shell 230 is disposed in the groove 110.

[0093] The back of the airbag cover 100 is designed to face the airbag. By providing a groove 110 on the front of the airbag cover 100, during the installation of the marking piece 200, it is only necessary to insert the marking piece 200 from the front of the airbag cover 100 into the groove 110 and fix it. Compared with the method of installing the marking piece 200 from the back of the airbag cover 100, there is no need to open a through hole on the airbag cover 100, which ensures the structural strength of the airbag cover 100. Furthermore, since the marking piece 200 is installed from the front of the airbag cover 100, the size of the marking piece 200 can be reduced to a certain extent, reducing the overall weight of the airbag assembly and thus reducing the risk of airbag deployment.

[0094] In this embodiment, a plurality of insertion holes 111 are provided on the inner bottom wall of the groove 110. Correspondingly, a plurality of insertion rods 234 are provided on the bottom shell 230. The plurality of insertion rods 234 are inserted into the insertion holes 111 one by one and are interference fit with the insertion holes 111, so as to achieve relative fixation between the marker 200 and the airbag cover 100.

[0095] In other embodiments, the bottom shell 230 and the airbag cover 100 can also be fixedly connected by adhesive or screwing, and there is no limitation on this.

[0096] In some embodiments, the front side of the airbag cover 100 and the inner wall of the groove 110 are both provided with a leather layer 120.

[0097] The leather layer 120 covers both the front of the airbag cover 100 and the inner wall of the groove 110. Since the leather layer 120 is placed on the airbag cover 100 before the label 200 is installed, installing the label 200 from the front of the airbag cover 100 can better prevent the label 200 from causing deformation of the leather layer 120, thereby ensuring the flatness of the surface of the leather layer 120.

[0098] The technical effects of the identification element 200 and the airbag assembly provided in this application embodiment include at least the following: by thinning at least a portion of the identification element body 210 in the first light-transmitting area 211 compared to the second light-transmitting area 212, the overall light transmittance of the first light-transmitting area 211 is increased, thereby balancing the difference in the amount of light incident on the first incident surface 2111 and the second incident surface 2121 by the first light source 220, ensuring that the brightness of the first light-transmitting area 211 and the second light-transmitting area 212 is basically the same; by setting a portion of the first light-transmitting area 211 inward, the propagation distance of light in the first light-transmitting area 211 is shortened, reducing the energy loss of light due to medium absorption; by providing an outwardly protruding portion of the identification element body 210 on the second light-transmitting area 212, the propagation distance of light in the second light-transmitting area 212 is increased, and the brightness of the second light-transmitting area 212 is reduced, thereby achieving the same brightness as the first incident surface 2111 and the second light-transmitting area 212. The brightness of the light-transmitting area 211 is balanced; the first light source 220 can be set at the center or edge of the bottom shell 230. For different light source positions, the structural design of the main body 210 of the marker 210 in the first light-transmitting area 211 and the second light-transmitting area 212 is optimized to meet the requirements of brightness uniformity; the design of the second light source 240 provides additional brightness supplement to the first light-transmitting area 211, further optimizing the overall brightness distribution; the marker 200 is installed from the front of the airbag cover 100, eliminating the need to open through holes in the airbag cover 100, reducing the weakening of the structural strength of the airbag cover 100, and helping to reduce the size of the marker 200, reducing the overall weight of the airbag assembly, thereby reducing the risk of airbag deployment; installing the marker 200 from the front of the airbag cover 100 can effectively prevent the marker 200 from deforming the leather layer 120, ensuring the flatness of the surface of the leather layer 120.

[0099] In summary, the embodiments of this application provide an identification element 200 and an airbag assembly. The identification element 200 mainly consists of an identification element body 210, a first light source 220, and a bottom shell 230. The identification element body 210 has a first light-transmitting area 211 and a second light-transmitting area 212. By designing recesses or protrusions, the thickness of the identification element body 210 in the first light-transmitting area 211 and the second light-transmitting area 212 is adjusted to achieve a balance in brightness, thereby improving the uniformity of light emission of the identification element 200.

[0100] 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 technical scope 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. An identification component, characterized in that, include: The sign body (210) has a first light-transmitting area (211) and a second light-transmitting area (212). The thickness of the sign body (210) in the first light-transmitting area (211) is at least partially less than the thickness of the sign body (210) in the second light-transmitting area (212). The sign body (210) has a first incident surface (2111) in the first light-transmitting area (211) and a second incident surface (2121) in the second light-transmitting area (212). A first light source (220) is fixed relative to the main body (210) of the marker. The distance from the first light source (220) to any point on the first incident surface (2111) is greater than the distance from the first light source (220) to any point on the second incident surface (2121).

2. The identification element according to claim 1, characterized in that, The main body (210) of the sign is recessed inward from the first incident surface (2111) in at least a portion of the first light-transmitting area (211).

3. The identification element according to claim 2, characterized in that, The first light-transmitting area (211) is arranged around the second light-transmitting area (212), and the main body of the marker (210) is recessed inward from the first incident surface (2111) in the part of the first light-transmitting area (211) away from the second light-transmitting area (212).

4. The identification element according to claim 2, characterized in that, The inwardly recessed portion of the first incident surface (2111) is provided with a textured structure.

5. The identification element according to claim 1, characterized in that, The main body (210) of the sign is provided to protrude outward from the second incident surface (2121) in at least a portion of the second light-transmitting area (212).

6. The identification element according to claim 5, characterized in that, The first light-transmitting area (211) is arranged around the second light-transmitting area (212), and the part of the main body of the marker (210) near the center of the second light-transmitting area (212) is arranged to protrude outward from the second incident surface (2121).

7. The identification element according to claim 1, characterized in that, The sign (200) also includes a second light source (240), which is fixed relative to the main body (210) of the sign. The second light source (240) is closer to the first incident surface (2111) than the first light source (220).

8. The identification element according to claim 1, characterized in that, The identification component (200) further includes a circuit board (250) and a bottom shell (230). The first light source (220) is disposed on the circuit board (250). The circuit board (250) is disposed on the bottom shell (230). The bottom shell (230) is connected to the main body (210) of the identification component. The main body (210) of the identification component is provided with a snap-fit ​​groove (214). The circuit board (250) is provided with a snap-fit ​​part (251) that snaps into the snap-fit ​​groove (214).

9. The identification element according to claim 8, characterized in that, The bottom shell (230) is provided with a limiting post (232), and the circuit board (250) is provided with a limiting hole (252) that cooperates with the limiting post (232).

10. The identification element according to claim 8, characterized in that, The main body (210) of the marker is welded to the bottom shell (230), and the bottom shell (230) is provided with a retaining edge (233) at the welding point between the main body (210) of the marker and the bottom shell (230).

11. An airbag assembly, characterized in that, It includes an airbag cover (100) and an identification element (200) as described in any one of claims 1-10, wherein the identification element (200) further includes a bottom shell (230) connected to the identification element body (210), and the bottom shell (230) is disposed on the airbag cover (100).

12. The airbag assembly according to claim 11, characterized in that, The airbag cover (100) has a front and a back. The front of the airbag cover (100) is provided with a groove (110), and the bottom shell (230) is disposed in the groove (110).

13. The airbag assembly according to claim 12, characterized in that, Both the front of the airbag cover (100) and the inner wall of the groove (110) are provided with a leather layer (120).

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