Gasket, lamp panel fastening structure and vehicle lamp

Abstract

The gasket, the lamp panel fastening structure and the automobile lamp relate to the technical field of automobile lamps, the gasket comprises a gasket body and a first limiting rib, the gasket body is provided with a through hole for a fastener to penetrate through, and the inner wall of the through hole is provided with an anti-falling part used for being connected with the fastener in an abutting mode. The connection reliability between the fastener and the gasket can be greatly enhanced through the arrangement of the anti-falling part, the fastener and the gasket are prevented from loosening relatively, the first limiting rib is arranged on the peripheral wall of the gasket body and used for being connected with a to-be-fastened component in a clamping or abutting mode, the to-be-fastened component is limited, meanwhile, automatic rotation of the gasket is limited, and the service life of the gasket is prolonged. The combined arrangement of the anti-falling part and the first limiting rib can effectively prevent the fastener from automatically rotating relative to the to-be-fastened component to cause loosening and gasket falling, and the gasket further has the advantages of being low in cost and high in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, and more specifically to a gasket, a lamp board fastening structure and a vehicle lamp. Background Art

[0002] In lamp design, the lamp panel fastening structure is a key component, which is responsible for ensuring the stability and safety of the lamp panel. However, the complexity of lamp design and the limitation of internal space bring challenges to the design of fastening structure. Existing standard fastening parts, such as bolts, nuts and washers, are often large in size, which is a problem for the interior of lamps with limited space. These larger parts are not only difficult to install, but also may interfere with each other in a small space, affecting the layout of other components.

[0003] To fit into a small space, designers may consider using smaller fasteners. However, this solution often comes with higher costs, as small parts may require special manufacturing processes or more expensive materials. In addition, small parts may lack sufficient strength and stability, which can affect the overall performance and safety of the luminaire.

[0004] Another problem is the limitations of existing gasket technology. During vehicle driving, due to vibration and bumps, the torque of the screw may be reduced, causing the gasket to misalign with the screw. This misalignment weakens the fixing effect of the gasket, thus affecting the stability of the light board and the function of the lamp.

[0005] Therefore, how to improve the adaptability of the light panel fastening structure to the layout in a narrow space has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0006] In view of this, an object of the present invention is to provide a gasket that can remain stable in a dynamic environment and prevent misalignment with a fastener.

[0007] Another object of the utility model is to provide a lamp panel fastening structure including the above-mentioned gasket, wherein the lamp panel fastening structure can be suitable for a narrow space in a vehicle lamp.

[0008] Another object of the present utility model is to provide a vehicle lamp including the above-mentioned lamp panel fastening structure.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A gasket, comprising:

[0011] The gasket body is provided with a through hole for the fastener to pass through, and the inner wall of the through hole is provided with an anti-dropping portion for abutting against the fastener;

[0012] The first limiting rib is arranged on the outer peripheral wall of the gasket body.

[0013] Optionally, in the above-mentioned gasket, a second limiting rib is provided on the outer peripheral wall of the gasket body, and the first limiting rib and the second limiting rib are symmetrically arranged relative to the axis of the gasket body.

[0014] Optionally, in the above-mentioned gasket, the anti-falling portion is an annular structure with an outer ring connected to the inner wall of the through hole and an inner ring used to abut against the fastener; or,

[0015] The anti-dropping portion includes a plurality of limiting protrusions which are arranged at intervals in the circumferential direction around the axis of the gasket body.

[0016] Optionally, in the above-mentioned gasket, the head of the fastener is used to press the first end of the gasket body, and the anti-falling portion is a slope structure inclined in a direction from the first end of the gasket body to the second end.

[0017] A light board fastening structure comprises a housing, a light board, a fastener and the above-mentioned gasket;

[0018] The shell is provided with an installation hole and an installation space, the lamp board is embedded in the installation space and is provided with a first limiting groove, the fastener passes through the through hole of the gasket and is screwed into the installation hole, the first limiting rib is embedded in the first limiting groove, and the lamp board is pressed into the installation space, and the axis of the fastener is parallel to the plane where the lamp board is located.

[0019] Optionally, in the above-mentioned lamp board fastening structure, the housing includes:

[0020] A first mounting plate, provided with the mounting hole and a first positioning rib, wherein the first positioning rib is used to abut against the first side surface of the lamp board;

[0021] A second mounting plate is connected to the first mounting plate, and a second positioning rib is provided on the second mounting plate. The second positioning rib is parallel to the first positioning rib and is used to abut against the second side surface of the lamp board. The mounting space is formed between the first positioning rib and the second positioning rib, and the first limiting rib is used to press the lamp board onto the second mounting plate.

[0022] Optionally, in the above-mentioned lamp board fastening structure, a third positioning rib is provided on the second mounting plate, the third positioning rib is arranged perpendicular to the second mounting plate, and a second limiting groove for embedding the third positioning rib is opened on the lamp board.

[0023] Optionally, in the above-mentioned lamp board fastening structure, a third limiting groove is provided on the first mounting plate, and the third limiting groove is used for the second limiting rib of the gasket to be embedded.

[0024] Optionally, in the above-mentioned lamp board fastening structure, the first mounting plate and the second mounting plate are an integrated structure; and / or,

[0025] One end of the first positioning rib and the second positioning rib away from the second mounting plate is an inclined surface structure for guiding the installation of the lamp panel.

[0026] A vehicle lamp comprises the lamp panel fastening structure mentioned above.

[0027] The gasket provided by the utility model comprises a gasket body and a first limiting rib, the gasket body is provided with a through hole for the fastener to pass through, and the inner wall of the through hole is provided with an anti-falling-off portion for abutting against the fastener, the provision of the anti-falling-off portion can greatly enhance the reliability of the connection between the fastener and the gasket, and prevent the two from being relatively loose, the first limiting rib is provided on the outer peripheral wall of the gasket body, and is used for clamping or abutting against the part to be fastened, while forming a restriction on the part to be fastened, it also limits the automatic rotation of the gasket.

[0028] Compared with the prior art, the gasket provided by the utility model can ensure the connection effect between it and the fastener by the setting of the anti-falling part, reduce the probability of the fastener rotating and loosening relative to the gasket body, and through the setting of the first limiting rib, it can effectively prevent the gasket from rotating relative to the fastened part, and can press and limit the fastened part. The combination of the anti-falling part and the first limiting rib can effectively prevent the fastener from automatically rotating relative to the fastened part, causing loosening and gasket falling off. The gasket also has the advantages of low cost and strong versatility.

[0029] The lamp board fastening structure provided by the utility model includes the above-mentioned gasket, shell, lamp board and fastener, the shell is provided with mounting holes and mounting space, the lamp board is used to be arranged in the mounting space, and is provided with a first limiting groove, the fastener passes through the through hole of the gasket and is screwed into the mounting hole, so as to fix the positions of the fastener, gasket and shell, and the first limiting rib is embedded in the first limiting groove, so that the gasket can press the lamp board into the mounting space at the same time, so as to fasten the lamp board and the shell, and the axis of the fastener is parallel to the plane where the lamp board is located.

[0030] The lamp board fastening structure provided by the utility model realizes the fastening of the shell and the lamp board by the first limiting rib on the gasket. The installation structure is simple and reliable, which can improve the stability and service life of the lamp. The fasteners are arranged parallel to the lamp board, which occupies less space, weighs less and has lower cost than the arrangement of fasteners perpendicular to the lamp board in the prior art.

[0031] The vehicle lamp provided by the utility model includes the above-mentioned lamp board fastening structure, so it also has the above-mentioned beneficial effects. Other structures refer to the prior art and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is an axonometric view of the gasket disclosed in the embodiment of the utility model;

[0034] Figure 2 It is a front view of the gasket disclosed in the embodiment of the utility model;

[0035] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0036] Figure 4 It is an axonometric diagram of a fastening structure disclosed in an embodiment of the utility model;

[0037] Figure 5 It is a front view of a fastening structure disclosed in an embodiment of the utility model;

[0038] Figure 6 A cross-sectional view of a fastening structure disclosed in an embodiment of the utility model;

[0039] Figure 7 It is an axonometric view of the lamp board fastening structure disclosed in the embodiment of the utility model;

[0040] Figure 8 It is a front view of the lamp board fastening structure disclosed in the embodiment of the utility model;

[0041] Fig. 9 It is a cross-sectional view of the lamp panel fastening structure disclosed in the embodiment of the utility model.

[0042] Wherein, 100 is a gasket, 110 is a gasket body, 120 is a first limiting rib, 121 is a second limiting rib, and 130 is an anti-dropping portion;

[0043] 200 is the first mounting plate, 201 is the first positioning rib, 210 is the third mounting plate, 211 is the second positioning rib, 220 is the second mounting plate, and 221 is the third positioning rib;

[0044] 300 is a fastener;

[0045] 400 is a lamp board, and 410 is a component to be fastened. DETAILED DESCRIPTION

[0046] The core of the present invention is to disclose a gasket 100 that can remain stable in a dynamic environment and prevent misalignment with a fastener.

[0047] Another core of the present invention is to disclose a lamp panel fastening structure including the gasket 100 , which can be suitable for a narrow space in a vehicle lamp.

[0048] Another core of the utility model is to disclose a vehicle lamp including the above-mentioned lamp board fastening structure.

[0049] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions of the utility model described in the claims. It should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. In the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0050] Combination Figure 1-Figure 9 The gasket 100 disclosed in the embodiment of the utility model includes a gasket body 110 and a first limiting rib 120. The gasket body 110 is provided with a through hole for the fastener 300 to pass through, and the inner wall of the through hole is provided with an anti-falling portion 130 for abutting against the fastener 300. The provision of the anti-falling portion 130 can greatly enhance the reliability of the connection between the fastener 300 and the gasket 100 and prevent the two from being relatively loose. The first limiting rib 120 is provided on the outer peripheral wall of the gasket body 110, and is used to engage or abut with the component 410 to be fastened. While limiting the component 410 to be fastened, it also limits the automatic rotation of the gasket 100.

[0051] Compared with the prior art, the gasket 100 disclosed in the embodiment of the utility model can ensure the connection effect between it and the fastener 300 through the setting of the anti-falling part 130, reduce the probability of the fastener 300 rotating and loosening relative to the gasket body 110, and through the setting of the first limiting rib 120, it can effectively prevent the gasket 100 from rotating relative to the fastening component 410, and can press and limit the fastening component 410. The combination of the anti-falling part 130 and the first limiting rib 120 can effectively prevent the fastener 300 from automatically rotating relative to the fastening component 410, causing loosening and the gasket 100 to fall off. The gasket 100 also has the advantages of low cost and strong versatility.

[0052] The gasket body 110 and the first limiting rib 120 may be an integrated structure and may be made of materials such as plastic and rubber by an integrated molding method.

[0053] A further optimization scheme is that a second limiting rib 121 is also provided on the outer peripheral wall of the gasket body 110, and the first limiting rib 120 and the second limiting rib 121 are symmetrically arranged relative to the axis of the gasket body 110. The first limiting rib 120 and the second limiting rib 121 are arranged on both sides of the gasket body 110 and can cooperate with the same component 410 to be fastened to avoid automatic rotation of the fastener 300 and the gasket 100. Alternatively, the first limiting rib 120 and the second limiting rib 121 can be installed and limited respectively with the two components 410 to be fastened, so that in the process of preventing the gasket body 110 from rotating itself, it can also simultaneously play the function of fastening the two components 410 to be fastened.

[0054] Specifically, combined Figure 1 and Figure 3 The anti-drop-off portion 130 may be an annular structure with an outer ring connected to the inner wall of the through hole and an inner ring abutting against the fastener 300 (i.e., transition fit). In this embodiment, the anti-drop-off portion 130 may be prepared by retaining the parting surface during production. Alternatively, the anti-drop-off portion 130 may be a chamfered structure.

[0055] In one embodiment, the anti-fall-off portion 130 includes a plurality of limiting protrusions circumferentially spaced around the axis of the gasket body 110 (the limiting protrusions are symmetrically arranged and are at the same or different positions along the axial direction of the through hole), and the limiting protrusions are clamped with the fastener 300 to prevent relative rotation and separation between the gasket 100 and the fastener 300.

[0056] The gasket body 110 is an annular structure having a first pressing surface and a second pressing surface relative to each other. The head of the fastener 300 is defined as being used to press the first end of the gasket body 110, that is, being used to press the first pressing surface. Furthermore, the anti-fall-off portion 130 can be set as a slope structure or a barb structure, and the slope structure is inclined along the direction from the first end of the gasket body 110 to the second end, so that when the fastener 300 passes from the first end of the gasket body 110 to the second end, the process can be smoother, and when the fastener 300 moves from the second end to the first end (the gasket 100 and the fastener 300 become loose), the fastener 300 is limited by the barb structure and is not easy to fall off from the gasket 100.

[0057] Figure 4-Figure 6This is a fastening method of the gasket 100 disclosed in this embodiment, which is used to fix the component 410 to be fastened on the housing, and the housing includes a first mounting plate 200, a second mounting plate 220 and a third mounting plate 210. The first mounting plate 200 and the second mounting plate 220 are parallel to each other and arranged oppositely, the third mounting plate 210 is perpendicular to the first mounting plate 200 and the second mounting plate 220, and is connected between the first mounting plate 200 and the second mounting plate 220, a first positioning rib 201 is provided on the side of the first mounting plate 200 facing the second mounting plate 220, and a second positioning rib 211 is provided on the side of the second mounting plate 220 facing the first mounting plate 200, and both sides of the component 410 to be fastened are respectively matched with the first positioning rib 201 and the second positioning rib 211 in a clearance manner, the gasket 100 is provided on the first mounting plate 200 through the fastener 300, and the first limiting rib 120 is in contact with the component 410 to be fastened, and is used to press the component 410 to be fastened on the second mounting plate 220.

[0058] The fastener 300 may specifically be a (pan head) self-tapping screw or the like.

[0059] The lamp board fastening structure disclosed in the utility model includes the above-mentioned gasket 100, shell, lamp board 400 and fastener 300. The shell is provided with mounting holes and mounting space. The lamp board 400 is used to be arranged in the mounting space and is provided with a first limiting groove. The fastener 300 passes through the through hole of the gasket 100 and is screwed into the mounting hole to fix the positions of the fastener 300, the gasket 100 and the shell. The first limiting rib 120 is embedded in the first limiting groove, so that the gasket 100 can press the lamp board 400 in the mounting space at the same time to achieve the fastening of the lamp board 400 and the shell. The axis of the fastener 300 is parallel to the plane where the lamp board 400 is located.

[0060] Combination Figure 7-Figure 9 The lamp board fastening structure disclosed in the embodiment of the utility model realizes the fastening of the housing and the lamp board 400 by the first limiting rib 120 on the gasket 100. The installation structure is simple and reliable, which can improve the stability and service life of the lamp. The fastener 300 is arranged in parallel with the lamp board 400. Compared with the arrangement of the fastener 300 perpendicular to the lamp board 400 in the prior art, it occupies less space, weighs less, and has lower cost. In addition, since the lamp board fastening structure also has the above-mentioned gasket 100, it also has the above-mentioned beneficial effects, which will not be repeated here.

[0061] It is understandable that the fastener 300 is disposed on the side (back) of the lamp board 400 where no lamp beads are disposed, so as to fully utilize the reserved space on the back of the lamp board 400 while avoiding affecting the light emitting effect of the lamp beads.

[0062] In one embodiment, the shell disclosed in the utility model includes a first mounting plate 200 and a second mounting plate 220, and the first mounting plate 200 is provided with a mounting hole and a first positioning rib 201, the first positioning rib 201 is used to abut against the first side of the lamp board 400, the second mounting plate 220 is connected to the first mounting plate 200, and the second mounting plate 220 is provided with a second positioning rib 211, the second positioning rib 211 is parallel to the first positioning rib 201, and is used to abut against the second side of the lamp board 400 (the first side and the second side of the lamp board 400 are opposite sides), the above-mentioned installation space is formed between the first positioning rib 201 and the second positioning rib 211, and the first limiting rib 120 is used to press the light board 400 against the second mounting plate 220.

[0063] Combination Figure 7 and Figure 8 , a spatial rectangular coordinate system is established with a certain point on the second mounting plate 220 as the origin, and the plane where the second mounting plate 220 is located is defined to be perpendicular to the X direction, and the plane where the first mounting plate 200 is located is perpendicular to the Z direction. The lamp board 400 is used to be arranged along the vertical Z direction, that is, parallel to the first mounting plate 200, and its first end abuts against the second mounting plate 220, and a first limiting groove is opened at the second end to be pressed by the first limiting rib 120 of the gasket 100, so as to fix the lamp board 400 on the shell, and at the same time, the axis of the fastener 300 is arranged perpendicular to the second mounting plate 220.

[0064] It will be understood by those skilled in the art that, since electronic components are disposed on both sides of the light board 400 (also known as the PCB board), the first positioning rib 201 and the second positioning rib 211 are respectively disposed in contact with the portions on both sides of the light board 400 where no electronic components are disposed, so as to avoid affecting the normal function of the light board 400.

[0065] Define the first mounting plate 200 as the top wall of the housing, and the second mounting plate 220 as the rear wall of the housing. Figure 8 The side wall of the housing is connected to the first mounting plate 200 and the second mounting plate 220 at the same time, and the second positioning rib 211 can also be set on the side wall of the housing to fix the end position of the light board 400. The first positioning rib 201 and the second positioning rib 211 are usually arranged perpendicular to the first mounting plate 200 and the second mounting plate 220. It is preferred to set the ends of the first positioning rib 201 and the second positioning rib 211 away from the second mounting plate 220 as an inclined structure to facilitate the installation and introduction of the light board 400.

[0066] In order to realize the positioning of the light board 400 in the Y direction in the installation space, combined with Figure 8The second mounting plate 220 is provided with a third positioning rib 221, which is arranged perpendicular to the second mounting plate 220, and the first end of the lamp board 400 is provided with a second limiting groove for the third positioning rib 221 to be embedded. During installation, the position of the lamp board 400 in the housing can be determined by aligning the second limiting groove of the lamp board 400 with the third positioning rib 221 and inserting the lamp board 400 into the installation space along the X direction, and finally fixing the gasket 100 and the fastener 300.

[0067] Combination Figure 4 Furthermore, a third limiting groove is provided on the first mounting plate 200, and the second limiting rib 121 of the gasket 100 is embedded in the third limiting groove, so that the gasket 100 can neither rotate relative to the lamp board 400 nor rotate relative to the housing. Figure 4 and Figure 5 The third limiting groove can be formed by two second positioning ribs extending along the X direction, which does not affect the installation of the gasket 100.

[0068] Each part of the housing can be set as an integrated structure, that is, the first mounting plate 200, the second mounting plate 220, the first positioning rib 201, the second positioning rib 211 and the third positioning rib 221 can be set as an integrated structure. The fastener 300 can be a self-tapping screw to facilitate quick fixing.

[0069] The specific installation process of the lamp board fastening structure is as follows: insert the lamp board 400 into the installation space of the shell, and fit the first positioning rib 201 and the second positioning rib 211 with the two sides of the lamp board 400 respectively to position the lamp board 400 in the Z direction, and fit the third positioning rib 221 with the first limiting groove to position the lamp board 400 in the Y direction; put the gasket 100 on the screw (fastener 300), and prevent the gasket 100 from falling off during assembly by fitting the anti-falling part 130 inside the gasket 100 with the thread transition of the screw. The gasket 100 is preferably installed in a plurality of mounting holes, and the plurality of mounting holes are connected to the plurality of mounting holes. The plurality of mounting holes are connected to the plurality of mounting holes, and the plurality of mounting holes are connected to the plurality of mounting holes. The plurality of mounting holes are connected to the plurality of mounting holes, and the plurality of mounting holes are connected to the plurality of mounting holes. The plurality of mounting holes are connected to the plurality of mounting holes, and the plurality of mounting holes are connected to the plurality of mounting holes.

[0070] The vehicle lamp disclosed in the utility model includes the above-mentioned lamp board fastening structure. Due to the above-mentioned lamp board fastening structure, it also has the above-mentioned beneficial effects. Other structures refer to the prior art and are not described in detail here.

[0071] The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. The specific technical means in some embodiments can be combined in part or in whole into another embodiment without being explicitly excluded by another embodiment. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A gasket, It is characterized in that include: The gasket body (110) is provided with a through hole through which the fastener (300) can pass, and an anti-falling portion (130) for abutting against the fastener (300) is provided on the inner wall of the through hole; The first limiting rib (120) is arranged on the outer peripheral wall of the gasket body (110).

2. The gasket according to claim 1, It is characterized in that A second limiting rib (121) is provided on the outer peripheral wall of the gasket body (110), and the first limiting rib (120) and the second limiting rib (121) are symmetrically arranged relative to the axis of the gasket body (110).

3. The gasket according to claim 1, It is characterized in that The anti-fall-off portion (130) is an annular structure with an outer ring connected to the inner wall of the through hole and an inner ring used to abut against the fastener (300); or, The anti-falling portion (130) comprises a plurality of limiting protrusions arranged at intervals in the circumferential direction around the axis of the gasket body (110).

4. The gasket according to claim 1, It is characterized in that The head of the fastener (300) is used to press the first end of the gasket body (110), and the anti-falling portion (130) is a slope structure inclined in a direction from the first end of the gasket body (110) to the second end.

5. A light board fastening structure, It is characterized in that It comprises the gasket (100) according to any one of claims 1 to 4, the fastener (300), a housing and a lamp panel (400); The shell is provided with a mounting hole and a mounting space, the lamp board (400) is embedded in the mounting space and is provided with a first limiting groove, the fastener (300) passes through the through hole of the gasket (100) and is screwed into the mounting hole, the first limiting rib (120) is embedded in the first limiting groove and the lamp board (400) is pressed tightly into the mounting space, and the axis of the fastener (300) is parallel to the plane where the lamp board (400) is located.

6. The lamp panel fastening structure according to claim 5, It is characterized in that The housing comprises: A first mounting plate (200) provided with the mounting hole and a first positioning rib (201), the first positioning rib (201) being used for abutting against a first side surface of the lamp board (400); A second mounting plate (220) is connected to the first mounting plate (200), and a second positioning rib (211) is provided on the second mounting plate (220), the second positioning rib (211) is parallel to the first positioning rib (201), and is used to abut against the second side surface of the lamp board (400), the mounting space is formed between the first positioning rib (201) and the second positioning rib (211), and the first limiting rib (120) is used to press the lamp board (400) onto the second mounting plate (220).

7. The lamp panel fastening structure according to claim 6, It is characterized in that A third positioning rib (221) is provided on the second mounting plate (220), the third positioning rib (221) being arranged perpendicular to the second mounting plate (220), and a second limiting groove for the third positioning rib (221) to be embedded is provided on the lamp board (400).

8. The lamp panel fastening structure according to claim 6, It is characterized in that The first mounting plate (200) is provided with a third limiting groove, the third limiting groove being used for the second limiting rib (121) of the gasket (100) to be embedded therein.

9. The lamp panel fastening structure according to claim 6, It is characterized in that The first mounting plate (200) and the second mounting plate (220) are an integrated structure; and / or, One end of the first positioning rib (201) and the second positioning rib (211) away from the second mounting plate (220) is an inclined surface structure used to guide the installation of the light board (400).

10. A car light, It is characterized in that It comprises a lamp board fastening structure as described in any one of claims 5-9.

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