Automobile lamp LED substrate grounding mechanism, automobile lamp and vehicle

Abstract

The application discloses a kind of car light LED substrate grounding mechanism, car light and vehicle, car light LED substrate grounding mechanism includes: LED substrate, reflector and reflector ground end, by installing LED substrate on reflector, with the copper area of LED substrate as the ground end of LED substrate, the conductive part of reflector abuts the copper area of LED substrate, copper area is connected metal light reflecting layer by conductive part, metal light reflecting layer connects the ground end of reflector, so that LED substrate is connected the ground end of reflector by copper area, realizes LED substrate grounding, LED substrate does not need to be connected the ground end of reflector by wiring harness, assembly is simple, reduce production cost, when LED substrate is interfered by static electricity, LED substrate passes through copper area and leads static electricity to the conductive part on reflector, the conductive part leads static electricity to metal light reflecting layer, metal light reflecting layer leads static electricity to reflector ground end, reach the effect of static electricity protection.

Description

Technical Field

[0001] This invention relates to the field of automotive lighting technology, and in particular to a grounding mechanism for an LED substrate of an automotive lighting system, an automotive lighting system, and a vehicle. Background Technology

[0002] During the assembly, transportation, and use of automotive lights, they may come into contact with objects carrying static electricity. Because static electricity has a high voltage, it can easily damage the LED substrate inside the light or cause damage to the components on the LED substrate. One automotive light electrostatic discharge (ESD) protection technology involves setting a reflector grounding terminal on the LED substrate. A wiring harness connects the LED substrate's reflector grounding terminal to the light's reflector. The light's reflector is then connected to the reflector grounding terminal via the wiring harness. Static electricity on the LED substrate is conducted to the reflector grounding terminal through the wiring harness and reflector, thus protecting the circuit. However, this method of conducting static electricity to the reflector grounding terminal via wiring harness and reflector is costly, cumbersome to assemble, and has low production efficiency. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a grounding mechanism for an LED substrate of a vehicle lamp, a vehicle lamp, and a vehicle, which can solve the problems of high production cost and cumbersome assembly in existing vehicle lamp electrostatic protection technologies.

[0004] According to a first aspect of the present invention, a grounding mechanism for a vehicle lamp LED substrate includes: an LED substrate having an exposed copper area to expose a copper foil layer of the LED substrate; a reflector having the LED substrate mounted on it, a conductive portion having a conductive portion on the side of the reflector facing the LED substrate corresponding to the exposed copper area, a reflective area having a reflective layer having a reflective metal layer for reflecting light, one end of the conductive portion being electrically connected to the reflective metal layer, and the other end of the conductive portion being connected to the copper foil layer of the LED substrate through the exposed copper area; and a reflector grounding terminal having the reflective metal layer being electrically connected to the reflector grounding terminal.

[0005] The vehicle lamp LED substrate grounding mechanism according to the first aspect embodiment of the present invention has at least the following beneficial effects:

[0006] By mounting the LED substrate on a reflector, with the exposed copper area of ​​the LED substrate serving as its grounding terminal, and the conductive part of the reflector abutting the exposed copper area of ​​the LED substrate, the exposed copper area is connected to the metal reflective layer through the conductive part, and the metal reflective layer is connected to the grounding terminal of the reflector. This allows the LED substrate to be grounded by connecting to the grounding terminal of the reflector through the exposed copper area. The LED substrate does not need to be connected to the grounding terminal of the reflector through a wiring harness, simplifying assembly and reducing production costs. When the LED substrate is subjected to electrostatic interference, the LED substrate conducts the static electricity to the conductive part on the reflector through the exposed copper area, the conductive part conducts the static electricity to the metal reflective layer, and the metal reflective layer conducts the static electricity to the grounding terminal of the reflector, achieving the effect of electrostatic protection.

[0007] According to some embodiments of the present invention, the exposed copper area includes a first exposed copper area and a second exposed copper area, and the conductive portion includes a first conductive portion and a second conductive portion, wherein the first conductive portion abuts against the first exposed copper area and the second conductive portion abuts against the second exposed copper area.

[0008] According to some embodiments of the present invention, the reflector is provided with a groove.

[0009] According to some embodiments of the present invention, the groove is provided with reinforcing ribs.

[0010] According to some embodiments of the present invention, the LED substrate is provided with a plurality of LED lamp mounting areas, and the reflective area is provided with lamp grooves corresponding one-to-one with the LED lamp mounting areas.

[0011] According to a second aspect of the present invention, a vehicle lamp includes: the above-described vehicle lamp LED substrate grounding mechanism.

[0012] The vehicle lamps according to a second aspect embodiment of the present invention have at least the following beneficial effects:

[0013] By mounting the LED substrate on a reflector, with the exposed copper area of ​​the LED substrate serving as its grounding terminal, and the conductive part of the reflector abutting the exposed copper area of ​​the LED substrate, the exposed copper area is connected to the metal reflective layer through the conductive part, and the metal reflective layer is connected to the grounding terminal of the reflector. This allows the LED substrate to be grounded by connecting to the grounding terminal of the reflector through the exposed copper area. The LED substrate does not need to be connected to the grounding terminal of the reflector through a wiring harness, simplifying assembly and reducing production costs. When the LED substrate is subjected to electrostatic interference, the LED substrate conducts the static electricity to the conductive part on the reflector through the exposed copper area, the conductive part conducts the static electricity to the metal reflective layer, and the metal reflective layer conducts the static electricity to the grounding terminal of the reflector, achieving the effect of electrostatic protection.

[0014] A vehicle according to a third aspect of the present invention includes: the above-described vehicle lights.

[0015] The vehicle according to the third aspect embodiment of the present invention has at least the following beneficial effects:

[0016] By mounting the LED substrate on a reflector, with the exposed copper area of ​​the LED substrate serving as its grounding terminal, and the conductive part of the reflector abutting the exposed copper area of ​​the LED substrate, the exposed copper area is connected to the metal reflective layer through the conductive part, and the metal reflective layer is connected to the grounding terminal of the reflector. This allows the LED substrate to be grounded by connecting to the grounding terminal of the reflector through the exposed copper area. The LED substrate does not need to be connected to the grounding terminal of the reflector through a wiring harness, simplifying assembly and reducing production costs. When the LED substrate is subjected to electrostatic interference, the LED substrate conducts the static electricity to the conductive part on the reflector through the exposed copper area, the conductive part conducts the static electricity to the metal reflective layer, and the metal reflective layer conducts the static electricity to the grounding terminal of the reflector, achieving the effect of electrostatic protection.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of the PCB substrate of the present invention;

[0020] Figure 2 This is a schematic diagram of the bottom surface of the reflector of the present invention;

[0021] Figure 3 This is a schematic diagram of the overall structure of the reflector of the present invention;

[0022] Figure 4 This is a schematic diagram (b) of the overall structure of the reflector of the present invention.

[0023] Figure label:

[0024] LED substrate 100, first exposed copper area 110, second exposed copper area 120

[0025] Reflector 200, reflective area 210, groove 220, first conductive area 230, second conductive area 240

[0026] First conductive part 300, second conductive part 310

[0027] First reinforcing rib 400, second reinforcing rib 410

[0028] Light trough 500. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0031] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0032] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0033] According to a first aspect embodiment of the present invention, a grounding mechanism for an automotive LED substrate includes: an LED substrate 100, a reflector 200, and a reflector grounding terminal, such as... Figure 1 As shown, the LED substrate 100 has exposed copper areas to expose the copper foil layer of the LED substrate 100. The LED substrate 100 is mounted on the reflector 200, as... Figure 2 As shown, a conductive part is provided on the side of the reflector 200 facing the LED substrate 100 at the position corresponding to the exposed copper area. A reflective area 210 is provided on the reflector 200, and a metal reflective layer is provided on the reflective area 210 for reflecting light. One end of the conductive part is electrically connected to the metal reflective layer, and the other end of the conductive part is connected to the copper foil layer of the LED substrate 100 through the exposed copper area. The metal reflective layer is electrically connected to the ground terminal of the reflector.

[0034] By mounting the LED substrate 100 on the reflector 200, and using the exposed copper area of ​​the LED substrate 100 as the grounding terminal of the LED substrate 100, the conductive part of the reflector 200 abuts against the exposed copper area of ​​the LED substrate 100. The exposed copper area is connected to the metal reflective layer through the conductive part, and the metal reflective layer is connected to the grounding terminal of the reflector 200. This allows the LED substrate 100 to be grounded by connecting to the grounding terminal of the reflector 200 through the exposed copper area. The LED substrate 100 does not need to be connected to the grounding terminal of the reflector 200 through a wire harness, simplifying assembly and reducing production costs. When the LED substrate 100 is subjected to electrostatic interference, the LED substrate 100 conducts the static electricity to the conductive part on the reflector 200 through the exposed copper area. The conductive part conducts the static electricity to the metal reflective layer, and the metal reflective layer conducts the static electricity to the grounding terminal of the reflector, achieving the effect of electrostatic protection.

[0035] like Figure 1 As shown, the exposed copper area includes a first exposed copper area 110 and a second exposed copper area 120, and the conductive part includes a first conductive part 300 and a second conductive part 310. The first conductive part 300 abuts against the first exposed copper area 110, and the second conductive part 310 abuts against the second exposed copper area 120. When the first exposed copper area 110 and the first conductive part 300 have poor contact, the static electricity on the LED substrate 100 can be discharged to the reflector 200 through the second exposed copper area 120 and the second conductive part 310. When the second exposed copper area 120 and the second conductive part 310 have poor contact, the static electricity on the LED substrate 100 can be discharged to the reflector 200 through the first exposed copper area 110 and the first conductive part 300, avoiding the impact of poor contact on static electricity discharge. The number of exposed copper areas and conductive parts can also be increased or decreased according to the actual application scenario.

[0036] like Figure 2 As shown, a groove 220 is provided on the reflector 200. The groove 220 separates the reflective area 210 on the reflector 200 from the area outside the reflective area 210. The groove 220 plays a positioning role during the processing, which facilitates the subsequent aluminum plating of the reflective area 210 to form a metal reflective layer.

[0037] like Figure 2 As shown, the first conductive part 300 and the second conductive part 310 are both disposed outside the reflective area 210. The reflector 200 is provided with a first conductive area 230 and a second conductive area 240. The first conductive area and the second conductive area 240 are both connected to the reflective area 210. A conductive layer is disposed on the first conductive area 230 and the second conductive area 240. The first conductive part 300 is disposed inside the first conductive area 230, and the second conductive part 310 is disposed inside the second conductive area 240. The first conductive part 300 and the second conductive part 310 are electrically connected to the metal reflective layer through the conductive layer.

[0038] The conductive layer is a first tin layer. The first conductive part 300 and the second conductive part 310 are both bosses. A second tin layer is provided on the outer surface of the boss. Since the boss abuts against the exposed copper area, the exposed copper area is electrically connected to the second tin layer. The second tin layer is connected to the first tin layer, so that the second tin layer is electrically connected to the first tin layer. The static electricity on the LED substrate 100 is transmitted to the metal reflective layer in sequence through the exposed copper area, the second tin layer, and the first tin layer.

[0039] like Figure 2 As shown, the groove 220 is provided with reinforcing ribs, including a first reinforcing rib 400 and a second reinforcing rib 410. The first reinforcing rib 400 is located within the first conductive area 230 of the groove 220. The bottom of the first reinforcing rib 400 is in contact with the groove 220, and the top of the first reinforcing rib 400 extends out of the groove 220 and to both sides, so that the top of the first reinforcing rib 400 is in contact with the first conductive area 230 and the reflective area 210, respectively. The second reinforcing rib 410 is located within the second conductive area 240 of the groove 220. The bottom of the second reinforcing rib 410 is in contact with the groove 220, and the top of the second reinforcing rib 410 extends out of the groove 220 and to both sides, so that the top of the second reinforcing rib 410 is in contact with the second conductive area 240 and the reflective area 210, respectively.

[0040] Since a portion of the groove 220 is located within the first conductive area 230 or the second conductive area 240, when the first tin layer is provided in the first conductive area 230 or the second conductive area 240, this portion of the groove 220 may have dead corners that are not covered by the first tin layer, resulting in the first tin layer and the metal reflective layer in the reflective area 210 failing to connect. By providing a first reinforcing rib 400 and a second reinforcing rib 410 in the groove 220, with the top of the first reinforcing rib 400 extending out of the groove 220 and extending to both sides to connect with the first conductive area 230 and the reflective area 210, and the top of the second reinforcing rib 410 extending out of the groove 220 and extending to both sides to connect with the second conductive area 240 and the reflective area 210, when the first tin layer is provided in the first conductive area 230 and the second conductive area 240, even if a portion of the groove 220 is not covered by the first tin layer, the tops of the first reinforcing ribs 400 and 410 extending out of the groove 220 can be covered by the first tin layer, ensuring that the first tin layer is connected to the metal reflective layer.

[0041] like Figures 2 to 4 As shown, the LED substrate 100 is provided with multiple LED lamp mounting areas, and the reflective area 210 is provided with lamp grooves 500 corresponding to the LED lamp mounting areas. The lamp grooves 500 can focus and guide the light emitted by the LED lamps on the LED substrate 100 to enhance the lighting effect.

[0042] It should be noted that the reflector 200 has two LED substrates 100 mounted on it, one above the other. Figures 3 to 4As shown, the reflector 200 should be provided with lamp grooves 500 corresponding to the LED lamp mounting areas of the two LED substrates 100. The connection relationship between each LED substrate 100 and the reflector 200 has been clearly explained through the above embodiments. The number of LED substrates 100 mounted on the reflector 200 and the number of lamp grooves 500 corresponding to the LED substrates 100 can be increased or decreased according to the actual application scenario.

[0043] According to a second aspect of the present invention, a vehicle lamp includes: the above-described vehicle lamp LED substrate grounding mechanism.

[0044] By mounting the LED substrate 100 on the reflector 200, and using the exposed copper area of ​​the LED substrate 100 as the grounding terminal of the LED substrate 100, the conductive part of the reflector 200 abuts against the exposed copper area of ​​the LED substrate 100. The exposed copper area is connected to the metal reflective layer through the conductive part, and the metal reflective layer is connected to the grounding terminal of the reflector 200. This allows the LED substrate 100 to be grounded by connecting to the grounding terminal of the reflector 200 through the exposed copper area. The LED substrate 100 does not need to be connected to the grounding terminal of the reflector 200 through a wire harness, simplifying assembly and reducing production costs. When the LED substrate 100 is subjected to electrostatic interference, the LED substrate 100 conducts the static electricity to the conductive part on the reflector 200 through the exposed copper area. The conductive part conducts the static electricity to the metal reflective layer, and the metal reflective layer conducts the static electricity to the grounding terminal of the reflector, achieving the effect of electrostatic protection.

[0045] A vehicle according to a third aspect of the present invention includes: the above-described vehicle lights.

[0046] By mounting the LED substrate 100 on the reflector 200, and using the exposed copper area of ​​the LED substrate 100 as the grounding terminal of the LED substrate 100, the conductive part of the reflector 200 abuts against the exposed copper area of ​​the LED substrate 100. The exposed copper area is connected to the metal reflective layer through the conductive part, and the metal reflective layer is connected to the grounding terminal of the reflector 200. This allows the LED substrate 100 to be grounded by connecting to the grounding terminal of the reflector 200 through the exposed copper area. The LED substrate 100 does not need to be connected to the grounding terminal of the reflector 200 through a wire harness, simplifying assembly and reducing production costs. When the LED substrate 100 is subjected to electrostatic interference, the LED substrate 100 conducts the static electricity to the conductive part on the reflector 200 through the exposed copper area. The conductive part conducts the static electricity to the metal reflective layer, and the metal reflective layer conducts the static electricity to the grounding terminal of the reflector, achieving the effect of electrostatic protection.

[0047] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A grounding mechanism for an LED substrate of a vehicle headlight, characterized in that, include: LED substrate (100), wherein an exposed copper area is provided on the LED substrate (100) to expose the copper foil layer of the LED substrate (100); A reflector (200) is provided, on which the LED substrate (100) is mounted. A conductive part is provided on the side of the reflector (200) facing the LED substrate (100) at the position corresponding to the exposed copper area. A reflective area (210) is provided on the reflector (200), and a metal reflective layer is provided on the reflective area (210) for reflecting light. One end of the conductive part is electrically connected to the metal reflective layer, and the other end of the conductive part is connected to the copper foil layer of the LED substrate (100) through the exposed copper area. The reflector grounding terminal is electrically connected to the reflector grounding terminal; The exposed copper area includes a first exposed copper area (110) and a second exposed copper area (120), and the conductive part includes a first conductive part (300) and a second conductive part (310). The first conductive part (300) abuts against the first exposed copper area (110), and the second conductive part (310) abuts against the second exposed copper area (120). The reflector (200) has a groove (220) that separates the reflective area (210) from the area outside the reflective area (210). The first conductive part (300) and the second conductive part (310) are disposed outside the reflective area (210). The reflector (200) has a first conductive area (230) and a second conductive area (240) connected to the reflective area (210). A conductive layer is provided on 240), and the first conductive part (300) and the second conductive part (310) are electrically connected to the metal reflective layer through the conductive layer; the conductive layer is a first tin layer, the first conductive part (300) and the second conductive part (310) are bosses, and a second tin layer is provided on the outer surface of the bosses. The bosses abut against the exposed copper area so that the exposed copper area is electrically connected to the second tin layer, and the second tin layer is in contact with the first tin layer so that the second tin layer is electrically connected to the first tin layer.

2. The grounding mechanism for the automotive LED substrate according to claim 1, characterized in that: The groove (220) is provided with reinforcing ribs.

3. The grounding mechanism for the automotive LED substrate according to claim 1, characterized in that: The LED substrate (100) is provided with multiple LED lamp mounting areas, and the reflective area (210) is provided with lamp slots (500) that correspond one-to-one with the LED lamp mounting areas.

4. Vehicle lights, characterized in that, include: The grounding mechanism for the vehicle lamp LED substrate as described in any one of claims 1 to 3.

5. A vehicle, characterized in that, include: The vehicle light as described in claim 4 above.

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