Low-beam car lamp module and car lamp

Abstract

The utility model discloses a low-beam car lamp module which comprises a circuit board, a low-beam lens, a lens support, an anti-ablation structure and a radiator, and a light source is arranged on the circuit board. A V-shaped groove is formed in the low-beam lens, and light emitted by the light source is emitted out after passing through the low-beam lens; the low beam lens is arranged on the lens bracket; the anti-ablation structure is arranged on the low beam lens and is used for preventing light reflected by the light incident surface of the V-shaped groove from passing through; the circuit board is arranged on the radiator. According to the low-beam car lamp module disclosed by the embodiment of the utility model, the anti-ablation structure is additionally arranged on the basis of an existing low-beam car lamp module, and the anti-ablation structure can prevent light rays reflected by the V-shaped groove from passing through, so that the risk of ablation of the lens bracket is reduced, and the service life of the lens bracket can be prolonged. Meanwhile, according to the low-beam car lamp module disclosed by the embodiment of the utility model, the number of optical parts of the car lamp module is not additionally increased, and the production cost of the low-beam car lamp module can be reduced. The utility model further discloses a car lamp.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, and more specifically, to a low-beam vehicle lamp module and a vehicle lamp. Background Art

[0002] The structural diagram of the low beam headlight module in the prior art is as follows Figure 1 As shown, the low beam lens 20 includes a circuit board 10, a low beam lens 20, a heat sink 40 and a lens holder 30. The low beam lens 20 is arranged on the lens holder 30. The light source on the circuit board 10 is arranged on the heat sink 40. The heat sink 40 and the lens holder 30 are connected by a fastener 60. The low beam function is realized by the light emitted by the light source passing through the V-shaped groove on the low beam lens 20. However, when the light passes through the light incident side of the V-shaped groove, it will be reflected and focused after passing through the upper surface of the low beam lens 20. There is a risk of ablating the lens holder 30. The specific optical path diagram is shown in Figure 2 As shown, Figure 2 The red light shown in FIG. 1 is the light irradiated to the lens holder 30 .

[0003] Therefore, how to reduce the risk of lens bracket ablation has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] In view of this, an object of the present invention is to provide a low-beam headlight module to reduce the risk of lens bracket ablation.

[0005] Another core of the utility model is to disclose a vehicle lamp including the above-mentioned low-beam vehicle lamp module.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A low beam headlight module, comprising:

[0008] A circuit board, wherein a light source is arranged on the circuit board;

[0009] A low beam lens is provided with a V-shaped groove, and the light emitted by the light source is emitted after passing through the low beam lens;

[0010] A lens bracket, on which the low beam lens is arranged;

[0011] An anti-ablation structure is provided on the low beam lens to block the light reflected by the incident surface of the V-shaped groove from passing through;

[0012] A heat sink is provided on which the circuit board is arranged.

[0013] Optionally, in the above-mentioned low-beam headlight module, the anti-ablation structure includes a first optical surface, and the first optical surface reflects the light reflected by the V-shaped groove.

[0014] Optionally, in the above low beam headlight module, a reflective layer is provided on the first optical surface.

[0015] Optionally, in the above low beam headlight module, the reflective layer includes a metal coating.

[0016] Optionally, in the above low beam headlight module, the anti-ablation structure includes a second optical surface, which is connected to and inclined with respect to the first optical surface so that the light reflected by the first optical surface can pass through.

[0017] Optionally, in the above low beam headlight module, the anti-ablation structure includes a plurality of first optical surfaces and a plurality of second optical surfaces, and the first optical surfaces and the second optical surfaces are arranged adjacent to each other in sequence to form a serrated structure.

[0018] Optionally, in the above low beam headlight module, the anti-ablation structure and the low beam lens are of an integral structure or a split structure.

[0019] Optionally, in the above low beam headlight module, the low beam lens includes a light incident surface and a light exit surface arranged opposite to the light incident surface, and the circuit board is arranged close to the light incident surface.

[0020] Optionally, in the above low beam headlight module, the radiator is connected to the lens bracket through a fixing member.

[0021] A headlight includes a low beam headlight module, and the low beam headlight module is the above-mentioned low beam headlight module.

[0022] As can be seen from the above solution, the low beam headlight module disclosed in the embodiment of the present invention adds an anti-ablation structure on the basis of the existing low beam headlight module. The anti-ablation structure can block the light reflected by the V-shaped groove from passing through, thereby reducing the risk of ablation of the lens bracket and extending the service life of the lens bracket. At the same time, the low beam headlight module disclosed in the embodiment of the present invention does not additionally increase the number of optical parts of the headlight module, and can reduce the production cost of the low beam headlight module. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a structural composition diagram of a low beam headlight module in the prior art;

[0025] Figure 2Optical path diagram of ablation of the lens bracket of a low beam headlight module in the prior art;

[0026] Figure 3 Structural composition diagram of the low beam headlight module disclosed in the embodiment of the present invention;

[0027] Figure 4 Optical path diagram of the low beam headlight module after setting the anti-ablation structure disclosed in the embodiment of the present invention;

[0028] Figure 5 is Figure 4 Partial enlarged view of A in

[0029] Figure 6 Optical path diagram of light passing through the anti-ablation structure disclosed in the embodiment of the present invention.

[0030] Among them, 10 is a circuit board, 20 is a low beam lens, 21 is an incident light surface, 22 is an exit light surface, 30 is a lens bracket, 40 is a radiator, 50 is an anti-ablation structure, 51 is a first optical surface, 52 is a second optical surface, and 60 is a fixing member. Detailed implementation manners

[0031] The core of the present invention lies in disclosing a low beam headlight module to reduce the risk of ablation of the lens bracket.

[0032] Another core of the present invention lies in disclosing a headlight including the above-mentioned low beam headlight module.

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] As Figure 3 shown, the embodiment of the present invention discloses a low beam headlight module, including a circuit board 10, a low beam lens 20, a lens bracket 30, an anti-ablation structure 50, and a radiator 40.

[0035] Among them, the low beam lens 20 is arranged on the lens bracket 30, and includes an incident light surface 21 and an exit light surface 22 arranged opposite to the incident light surface 21. The circuit board 10 is arranged close to the incident light surface 21, and a light source is arranged on the circuit board 10. The light emitted by the light source enters the interior of the low beam lens 20 through the incident light surface 21 and is emitted through the exit light surface 22 to form a low beam light pattern. A V-shaped groove for forming a low beam cut-off line is arranged on the low beam lens 20. The circuit board 10 is arranged on the radiator 40, and the radiator 40 is used for dissipating heat from the light source.

[0036] As Figure 2 shown, when the light entering the low-beam lens 20 is reflected when passing through the light-incident surface of the V-groove, without adding the anti-ablation structure 50, the optical path diagram is as shown by the light ray a in Figure 2 below. The light ray passes through the low-beam lens 20 and is focused and irradiated onto the lens bracket 30. In the figure, the light ray b is the light ray forming the low-beam light pattern.

[0037] To reduce the ablation risk of the lens bracket 30, an anti-ablation structure 50 is provided on one side of the low-beam lens 20 opposite to the V-groove. The anti-ablation structure 50 can block the light ray reflected by the V-groove from passing through, thereby reducing the ablation risk of the lens bracket 30. It should be noted that the anti-ablation structure 50 and the low-beam lens 20 can be of an integral structure or a split structure, and are connected by welding or bonding in the later stage. The specific width of the anti-ablation structure 50 can be adaptively adjusted according to the width of the light-incident surface of the V-groove.

[0038] The low-beam headlight module disclosed in the embodiment of the present utility model adds the anti-ablation structure 50 on the basis of the existing low-beam headlight module. The anti-ablation structure 50 can block the light ray reflected by the V-groove from passing through, thereby reducing the ablation risk of the lens bracket 30 and prolonging the service life of the lens bracket 30. At the same time, for the low-beam headlight module disclosed in the embodiment of the present utility model, the number of optical parts of the headlight module is not additionally increased, and the production cost of the low-beam headlight module can be reduced.

[0039] In some specific embodiments, the anti-ablation structure 50 includes a first optical surface 51. Specifically, the first optical surface 51 can reflect the light ray reflected by the V-groove, thereby reducing the light ray reflected by the V-groove from passing through and irradiating onto the lens bracket 30, and further reducing the ablation risk of the lens bracket 30. The light ray reflected by the first optical surface 51 enters the interior of the low-beam lens 20 and is emitted from the light-emitting surface 22 of the low-beam lens 20 and merges into the light ray emitted by the light-emitting surface 22. The specific optical path diagram is as shown in Figure 4 below, which can improve the light utilization rate of the low-beam light pattern and the efficiency of the optical system.

[0040] In order to improve the reflectivity of the first optical surface 51, in some specific embodiments, a metal coating is provided on the first optical surface 51. Preferably, the metal coating can be selected from metal aluminum, metal zinc, etc.

[0041] In some specific embodiments, the anti-ablation structure 50 includes a first optical surface 51 and a second optical surface 52. The second optical surface 52 is connected to the first optical surface 51 and is inclined so that the light ray reflected by the first optical surface 51 can pass through. As shown in Figure 4In the optical path diagram shown, the light rays reflected by the light incident surface of the V-groove irradiate onto the anti-ablative structure 50. After being reflected by the first optical surface 51, they pass through the second optical surface 52 and enter the interior of the low beam lens 20, and are emitted from the light-emitting surface of the low beam lens 20, being converted into effective light rays of the low beam light pattern.

[0042] As Figure 4 and Figure 6 shown, in some specific embodiments, the anti-ablative structure 50 includes a plurality of first optical surfaces 51 and a plurality of second optical surfaces 52, and the first optical surfaces 51 and the second optical surfaces 52 are arranged adjacent to each other in sequence to form a serrated structure. Each of the first optical surfaces 51 is arranged in parallel, each of the second optical surfaces 52 is arranged in parallel, and the adjacent first optical surface 51 and second optical surface 52 are arranged obliquely. As can be seen from Figure 6 it, the light rays reflected by the V-groove reach the first optical surface 51. Some of the light rays are directly emitted into the interior of the low beam lens 20 after being reflected by the first optical surface 51, and the other part of the light rays are emitted into the interior of the low beam lens 20 after passing through the second optical surface 52 after being reflected by the first optical surface 51, and then are emitted from the light-emitting surface 22 of the low beam lens 20, being converted into effective light rays of the low beam light pattern.

[0043] In the low beam headlight module disclosed in the embodiments of the present utility model, the radiator 40 and the lens bracket 30 are connected by a fixing member 60.

[0044] In addition, the embodiments of the present utility model also disclose a vehicle headlight, including the low beam module of the vehicle headlight in the above embodiments, and thus have all the technical effects of the above low beam module of the vehicle headlight.

[0045] It should be noted that the embodiments in this specification are all described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts among the embodiments can be referred to each other.

[0046] As shown in this application and the claims, unless the context clearly indicates an exception, words such as "a", "an", "one" and / or "the" are not specifically singular and may also include plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. Elements defined by the statement "including one..." do not exclude the existence of other identical elements in the process, method, commodity or device including the element.

[0047] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0048] Unless otherwise clearly defined and limited, the terms "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0049] In this article, specific examples are used to illustrate the principles and implementation manners of the present invention. The descriptions of the above embodiments are only used to help understand the core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A low beam headlight module, characterized in that: include: A circuit board (10), wherein a light source is arranged on the circuit board (10); A low beam lens (20), wherein a V-shaped groove is provided on the low beam lens (20), and light emitted by the light source passes through the low beam lens (20) and then is emitted; A lens bracket (30), wherein the low beam lens (20) is arranged on the lens bracket (30); an anti-ablation structure (50), the anti-ablation structure (50) being arranged on the low beam lens (20) and being used to block the passage of light reflected by the light incident surface of the V-shaped groove; A heat sink (40), wherein the circuit board (10) is arranged on the heat sink (40).

2. The low beam headlight module according to claim 1, characterized in that: The anti-ablation structure (50) comprises a first optical surface (51), and the first optical surface (51) reflects light reflected by the V-shaped groove.

3. The low beam headlight module according to claim 2, characterized in that: A reflective layer is provided on the first optical surface (51).

4. The low beam headlight module according to claim 3, characterized in that: The reflective layer includes a metal coating.

5. The low beam headlight module according to claim 2, characterized in that: The anti-ablation structure (50) comprises a second optical surface (52), wherein the second optical surface (52) is connected to the first optical surface (51) and arranged at an angle so as to allow light reflected by the first optical surface (51) to pass through.

6. The low beam headlight module according to claim 5, characterized in that: The anti-ablation structure (50) comprises a plurality of the first optical surfaces (51) and a plurality of the second optical surfaces (52), wherein the first optical surfaces (51) and the second optical surfaces (52) are arranged adjacent to each other in sequence to form a sawtooth structure.

7. The low beam headlight module according to any one of claims 1 to 6, characterized in that: The anti-ablation structure (50) and the low beam lens (20) are an integrated structure or a split structure.

8. The low beam headlight module according to any one of claims 1 to 6, characterized in that: The low beam lens (20) comprises a light incident surface (21) and a light emitting surface (22) arranged opposite to the light incident surface (21), and the circuit board (10) is arranged close to the light incident surface (21).

9. The low beam headlight module according to any one of claims 1 to 6, characterized in that: The heat sink (40) is connected to the lens bracket (30) via a fixing member (60).

10. A vehicle lamp, comprising a low beam vehicle lamp module, characterized in that: The low beam headlight module is the low beam headlight module as described in any one of claims 1 to 9.

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