Universal spacer and vehicle light having the same

Abstract

The invention discloses a universal gasket and a car lamp having the same. The universal gasket is used for screwing a PCB substrate. The PCB substrate is provided with a positioning hole and a mounting hole penetrating along the thickness direction thereof. The screw passes through the mounting hole from one side of the PCB substrate and is connected to a fixing member. The universal gasket is arranged between the screw and one side of the PCB substrate. The universal gasket comprises: a gasket body, one side of which is formed as a fixing plane that stops against one side of the PCB substrate, and the other side comprises an arc surface that bends toward the direction where the PCB substrate is located and two straight surfaces that are respectively located at two ends of the arc surface and extend obliquely toward two ends of the fixing plane along the extension direction of the arc surface. The gasket body is penetrated with a through hole along the thickness direction thereof, and the screw passes through the through hole and is connected to the fixing member; a limiting part, one end of the limiting part is connected to the fixing plane, and the other end of the limiting part extends toward a side away from the gasket body and cooperates with the positioning hole. The universal gasket has a simple structure, occupies a small space, has a low manufacturing cost, and is firmly fixed.

Description

Technical Field

[0001] The invention relates to a universal gasket and a vehicle lamp having the universal gasket. Background Art

[0002] At present, in the structural design of automotive lamps, the PCB board needs to be fixed on the bracket, usually by screw locking, clamping, hot riveting and other forms of fixation. Among them, screw locking is the most reliable, relatively low cost, and the most widely used. However, in the case where the normal direction of the PCB board is inconsistent with the ejection direction of the fixing part, the screw hole structure on the fixing part needs to be internally drawn on the mold. LEDs are widely used in existing lamps, and there are many PCB boards in a lamp with different normal directions. Correspondingly, there are many screw holes on the fixing part and the internal drawing directions are different. The bracket mold structure is very complicated, the cost is high, and the mold feasibility is low. If the PCB board is fixed by clamping, the mold structure is more complicated, and the reliability of the clamp fixing is not as good as that of the screw; if the hot riveting method is used, the corresponding hot riveting tooling is required, and its production efficiency is relatively low. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, the present invention proposes a universal gasket, which can simplify the product structure, effectively improve the feasibility of the mold, and reduce the production cost of the fixing part mold.

[0005] The present invention also provides a vehicle lamp having the universal gasket, which has the advantages of simple structure, small occupied space, etc.

[0006] According to an embodiment of the present invention, a universal gasket is used for screw locking a PCB substrate, the PCB substrate is provided with a positioning hole and a mounting hole penetrating along the thickness direction thereof, the screw passes through the mounting hole from one side of the PCB substrate and is connected to a fixing member on the other side of the PCB substrate, the universal gasket is arranged between the screw and one side of the PCB substrate, the universal gasket comprises: a gasket body, one side of the gasket body is formed as a fixing plane against one side of the PCB substrate, the size of the fixing plane is larger than the size of the positioning hole and the mounting hole, the other side of the gasket body comprises a An arcuate surface bent in the direction thereof and two straight surfaces respectively located at the two ends of the arcuate surface and obliquely extending along the extension direction of the arcuate surface toward the two ends of the fixing plane, the gasket body is penetrated by a through hole corresponding to the mounting hole along its thickness direction, the through hole is located on the arcuate surface and at least a part of the straight surface, the screw is connected to the fixing member through the through hole; a limiting portion, the limiting portion is arranged on the fixing plane, one end of the limiting portion is connected to the fixing plane, and the other end of the limiting portion extends toward a side away from the gasket body and cooperates with the positioning hole to position the gasket body.

[0007] According to the universal gasket of the embodiment of the present invention, by adopting the cooperation between the gasket body and the limiting part, the limiting part and the locking of the screw can be used to screw the PCB substrates with various different inclination angles (i.e., the angle between the direction of the screw hole and the normal line of the PCB substrate plane), thereby avoiding the situation where the screw hole of the fixing part needs to be pulled inward due to the inconsistency between the normal line direction of the PCB substrate and the ejection direction of the fixing part, simplifying the product structure, effectively improving the feasibility of the mold, and reducing the production and manufacturing cost of the fixing part mold.

[0008] According to one embodiment of the present invention, the fixing plane is formed as a rectangular surface, the arc surface is bent along the length direction of the fixing plane toward the direction of the PCB substrate, and the arc surface and the two straight surfaces are symmetrically arranged relative to the symmetry axis of the fixing plane.

[0009] According to an embodiment of the present invention, the through hole is formed as an elongated hole extending along the length direction of the fixing plane, and two ends of the through hole extend from the arc surface to the same position of the two straight surfaces.

[0010] According to one embodiment of the present invention, one end of the fixing member facing the PCB substrate stops against the PCB substrate, and the fixing member is provided with a screw hole that cooperates with the screw, and an angle θ between a central axis direction of the screw hole and a normal direction of the PCB substrate is in an angle range of [0, α], wherein α is an angle between a normal of the straight surface and a normal of the PCB substrate.

[0011] According to one embodiment of the present invention, a screw cap is provided at one end of the screw, and when θ<α, the end surface of the screw cap facing the universal washer stops against the arc surface, and when θ=α, the end surface of the screw cap facing the universal washer stops against the straight surface.

[0012] According to an embodiment of the present invention, when θ<α, the end surface of the screw cap facing the universal washer is tangent to the arcuate surface.

[0013] According to an embodiment of the present invention, the straight surface is tangent to the arcuate surface.

[0014] According to one embodiment of the present invention, the through hole is formed by a cylindrical channel, and a cylinder is passed through the channel with the center of the screw hole as the rotation center, on a fixed plane passing through the axis of the screw hole and with θ being 0 as the starting state, and rotating along a sweeping trajectory from -α° to α°.

[0015] According to an embodiment of the present invention, the arc surface and the screw hole are cocentric.

[0016] According to one embodiment of the present invention, the radius of the cylinder belongs to the interval [b+0.2, a-3.2], wherein a is the diameter of the screw cap of the screw, and b is the diameter of the stud of the screw.

[0017] According to one embodiment of the present invention, the thickness of the gasket body is not less than 1.5 mm.

[0018] The vehicle lamp according to the second aspect of the present invention comprises the universal gasket as described in any one of the above items.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a schematic structural diagram of a universal gasket at one angle according to an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of assembling a universal gasket, a screw, a PCB substrate and a fixing member according to another embodiment of the present invention;

[0023] Figure 3 yes Figure 2 Schematic diagram of the cross section along direction A;

[0024] Figure 4yes Figure 1 A top view of

[0025] Figure 5 3 is a structural schematic diagram of a universal gasket according to another angle of an embodiment of the present invention.

[0026] Reference numerals:

[0027] Universal spacer 100;

[0028] Gasket body 110; fixing plane 111; arc surface 112; straight surface 113; through hole 114;

[0029] Limiting portion 120;

[0030] Screw 200; Screw cap 210;

[0031] PCB substrate 300; positioning hole 310; mounting hole 320;

[0032] Fixing member 400 ; Screw hole 410 . DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The universal spacer 100 and the vehicle lamp having the universal spacer 100 according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] like Figures 1 to 5 As shown, the universal gasket 100 according to the embodiment of the present invention includes a gasket body 110 and a limiting portion 120 .

[0038] Specifically, the universal gasket 100 can be used to lock the PCB substrate 300 with the screw 200. The PCB substrate 300 is provided with a positioning hole 310 and a mounting hole 320 that penetrate along its thickness direction. The screw 200 passes through the mounting hole 320 from one side of the PCB substrate 300 and is connected to the fixing member 400 on the other side of the PCB substrate 300. The universal gasket 100 is arranged between the screw 200 and one side of the PCB substrate 300. One side of the gasket body 110 is formed as a fixing plane 111 that stops at one side of the PCB substrate 300. The size of the fixing plane 111 is larger than the size of the positioning hole 310 and the mounting hole 320. The other side of the gasket body 110 includes a fixing plane 111 that faces the direction of the PCB substrate 300. The gasket body 110 has a curved arc surface 112 and two straight surfaces 113 which are respectively located at the two ends of the arc surface 112 and extend obliquely toward the two ends of the fixing plane 111 along the extension direction of the arc surface 112. A through hole 114 corresponding to the mounting hole 320 is penetrated through the gasket body 110 along its thickness direction. The through hole 114 is located on the arc surface 112 and at least a portion of the straight surface 113. The screw 200 passes through the through hole 114 and is connected to the fixing member 400. The limiting portion 120 is provided on the fixing plane 111. One end of the limiting portion 120 is connected to the fixing plane 111, and the other end of the limiting portion 120 extends toward a side away from the gasket body 110 and cooperates with the positioning hole 310 to position the gasket body 110.

[0039] In other words, a universal gasket 100 is provided on the PCB substrate 300, and the PCB substrate 300 can be locked by the cooperation of the universal gasket 100 and the screw 200. A positioning hole 310 and a mounting hole 320 are provided on the PCB substrate 300, and the positioning hole 310 and the mounting hole 320 are respectively penetrated along the thickness direction of the PCB substrate. Screws 200 and fixing members 400 are respectively provided on both sides of the universal gasket 100 and the PCB substrate 300. One end of the screw 200 passes through the mounting hole 320 from one side of the PCB substrate 300 and cooperates with the fixing member 400 located on the other side of the PCB substrate 300. One surface of the gasket body 110 is formed as a fixing plane 111. When the PCB substrate 300 is locked, the fixing plane 111 stops at one side of the PCB substrate 300. The size of the fixing plane 111 is larger than the size of the positioning hole 310 and the mounting hole 320, so it will not affect the locking effect. The other side of the gasket body 110 includes an arcuate surface 112 and two straight surfaces 113, wherein the arcuate surface 112 is located between the two straight surfaces 113, and the arcuate surface 112 is bent toward the direction of the PCB substrate 300. The straight surface 113 is located at one end of the arcuate surface 112 and extends obliquely toward the two ends of the fixing plane 111 along the extension direction of the arcuate surface 112. The gasket body 110 is penetrated by a through hole 114 along its thickness direction, and the through hole 114 corresponds to the mounting hole 320. The through hole 114 is located on the arcuate surface 112 and at least a portion of the straight surface 113. The screw 200 passes through the through hole 114 and is connected to the fixing member 400, and the position of the screw 200 in the through hole 114 can be adjusted. One end of the limiting portion 120 is connected to the fixing plane 111 , and the other end of the limiting portion 120 extends toward a side away from the gasket body 110 . The limiting portion 120 cooperates with the positioning hole 310 , and the gasket body 110 can be positioned through the limiting portion 120 .

[0040] Therefore, the universal gasket 100 according to the embodiment of the present invention is mainly composed of a gasket body 110 and a limiting portion 120. By adjusting the positions of the screw 200 and the fixing member 400, the structure is simple and the installation is convenient. It can adapt to various angles between the normal line of the PCB substrate 300 and the demolding direction of the fixing member 400, and can solve the problem of locking the screw 200 when the normal line of the PCB board is inconsistent with the demolding direction of the fixing member 400.

[0041] According to one embodiment of the present invention, the fixing plane 111 can be formed as a rectangular surface, the arc surface 112 can be bent toward the direction of the PCB substrate 300 along the length direction of the fixing plane 111, and the arc surface 112 and the two straight surfaces 113 are symmetrically arranged relative to the symmetry axis of the fixing plane 111.

[0042] Furthermore, the through hole 114 may be formed as an elongated hole extending along the length direction of the fixing plane 111 , and both ends of the through hole 114 extend from the arc surface 112 to the same position of the two straight surfaces 113 .

[0043] like Figure 2 As shown, optionally, one end of the fixing member 400 facing the PCB substrate 300 stops against the PCB substrate 300, and the fixing member 400 is provided with a screw hole 410 matched with the screw 200, and the angle θ between the central axis direction of the screw hole 410 and the normal direction of the PCB substrate 300 can be in the range of [0, α], wherein α is the angle between the normal of a straight surface 113 and the normal of the PCB substrate 300, Figure 2 Line A is the direction of the screw hole 410 , line B is the normal line of the PCB substrate, and line C is the normal line of the straight surface 113 .

[0044] In some specific embodiments of the present invention, a screw cap 210 may be provided at one end of the screw 200. When θ<α, the end surface of the screw cap 210 facing the universal gasket 100 may stop against the arc surface 112. When θ=α, the end surface of the screw cap 210 facing the universal gasket 100 may stop against the straight surface 113.

[0045] Furthermore, when θ<α, the end surface of the screw nut 210 facing the universal washer 100 may be tangent to the arc surface 112 .

[0046] According to an embodiment of the present invention, the straight surface 113 may be tangent to the arc surface 112. Thus, not only can the screw 200 and the universal washer 100 be matched more conveniently, but also the fastening effect of the screw 200 and the universal washer 100 can be ensured.

[0047] In some specific embodiments of the present invention, the through hole 114 is formed by a cylindrical hole, and a cylinder is passed through the hole with the center of the screw hole 410 as the rotation center, on a fixed plane 111 passing through the axis of the screw hole 410 and with θ being 0 as the starting state, and rotating along a sweeping trajectory from -α° to α°.

[0048] Furthermore, the arc surface 112 can be co-centered with the screw hole 410. Therefore, before the universal gasket 100 is formed, the size of the through hole 114 is calculated according to the environment in which it is used, and then it is prepared and formed, which can not only ensure the matching effect with the screw 200 and the PCB substrate 300, but also facilitates the forming.

[0049] like Figure 3 As shown, optionally, the radius of the cylinder belongs to the interval [b+0.2, a-3.2], where a is the diameter of the screw cap 210 of the screw 200, and b is the diameter of the stud of the screw 200.

[0050] According to one embodiment of the present invention, the thickness of the gasket body 110 is not less than 1.5 mm.

[0051] The vehicle lamp according to the embodiment of the present invention comprises any one of the universal gaskets 100 described above.

[0052] In summary, the universal gasket 100 according to the embodiment of the present invention can avoid the situation where the mold screw hole needs to be pulled inward due to the inconsistency between the normal direction of the PCB substrate 300 and the demolding direction of the fixing part 400, thereby simplifying the product structure, effectively improving the feasibility of the mold, and reducing the production cost of the fixing part mold.

[0053] The vehicle light according to the embodiment of the present invention includes the universal gasket 100 according to the above embodiment. Since the universal gasket 100 according to the embodiment of the present invention has the above technical effects, the vehicle light according to the embodiment of the present invention also has the corresponding technical effects, that is, it can effectively reduce production costs and simplify product structure.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0055] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A universal washer, used for screwing a PCB substrate, wherein the PCB substrate is provided with a positioning hole and a mounting hole penetrating along the thickness direction thereof, the screw passes through the mounting hole from one side of the PCB substrate and is connected to a fixing member on the other side of the PCB substrate, and the universal washer is arranged between the screw and one side of the PCB substrate, characterized in that: The universal spacer comprises: A gasket body, one side of which is formed as a fixing plane against one side of the PCB substrate, the size of the fixing plane is larger than the size of the positioning hole and the mounting hole, the other side of the gasket body includes an arcuate surface bent toward the direction of the PCB substrate and two straight surfaces respectively located at two ends of the arcuate surface and extending obliquely toward two ends of the fixing plane along the extension direction of the arcuate surface, the gasket body is penetrated with a through hole corresponding to the mounting hole along the thickness direction thereof, the through hole is located on the arcuate surface and at least a part of the straight surface, and the screw passes through the through hole to be connected with the fixing member; A limiting portion, wherein the limiting portion is disposed on the fixing plane, one end of the limiting portion is connected to the fixing plane, and the other end of the limiting portion extends toward a side away from the gasket body and cooperates with the positioning hole to position the gasket body; One end of the fixing member facing the PCB substrate abuts against the PCB substrate, the fixing member is provided with a screw hole matched with the screw, and the angle θ between the central axis direction of the screw hole and the normal direction of the PCB substrate is in the range of [0, α], wherein α is the angle between the normal of one of the straight surfaces and the normal of the PCB substrate; One end of the screw is provided with a screw cap, and when θ<α, the end surface of the screw cap facing the universal washer stops against the arc surface, and when θ=α, the end surface of the screw cap facing the universal washer stops against the straight surface; The through hole is formed by a cylindrical channel, and a cylinder is passed through the channel with the center of the screw hole as the rotation center, on a fixed plane passing through the axis of the screw hole and with θ being 0 as the starting state, and rotating along a sweeping trajectory from -α° to α°.

2. The universal spacer according to claim 1, characterized in that: The fixing plane is formed as a rectangular surface, the arc surface is bent along the length direction of the fixing plane toward the direction where the PCB substrate is located, and the arc surface and the two straight surfaces are symmetrically arranged relative to the symmetry axis of the fixing plane.

3. The universal spacer according to claim 2, characterized in that: The through hole is formed as an elongated hole extending along the length direction of the fixing plane, and both ends of the through hole extend from the arc surface to the same position of the two straight surfaces.

4. The universal spacer according to claim 1, characterized in that: When θ<α, the end surface of the screw cap facing the universal washer is tangent to the arcuate surface.

5. The universal spacer according to claim 4, characterized in that: The straight surface is tangent to the arc surface.

6. The universal spacer according to claim 1, characterized in that: The arc surface and the screw hole are cocentric.

7. The universal spacer according to claim 1, characterized in that: The radius of the cylinder belongs to the interval [b+0.2, a-3.2], where a is the diameter of the screw cap of the screw and b is the diameter of the stud of the screw.

8. The universal spacer according to any one of claims 1 to 7, characterized in that: The thickness of the gasket body is not less than 1.5 mm.

9. A vehicle lamp, characterized in that: A universal gasket comprising any one of claims 1-8.

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