Vehicle front position lamp

Abstract

The invention relates to the technical field of vehicle lamps, in particular to a vehicle front position lamp. The vehicle front position lamp comprises a lamp inner cavity defined by a lamp shell and a lens, and a light source assembly and a thick wall piece are arranged in the lamp inner cavity. The front end of the thick-wall part faces the lens and forms a light emitting face, the rear end of the thick-wall part faces the lamp shell and forms an inclined reflecting face, the light source assembly is arranged above the rear end of the thick-wall part, and a condenser is arranged at the position, opposite to the light source assembly, of the upper side of the rear end of the thick-wall part. After the light source assembly is lightened, light emitted by the light source assembly can enter the thick-wall part after being condensed by the condenser and is reflected to the reflecting surface of the thick-wall part, then is totally reflected to the light-emitting surface of the thick-wall part through the reflecting surface, and finally is scattered to the light distribution mirror through the light-emitting surface and is emitted out. Therefore, uniform light emitting of the vehicle front position lamp is achieved, the phenomenon that an obvious dark area exists after the lamp is lightened is avoided, meanwhile, the internal structure of the lamp is not easy to observe from the front of the lamp, and the attractiveness of the lamp is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle lamps, and in particular to a vehicle front position lamp. Background Art

[0002] Traditional through-type front position lights usually use direct-emitting thick-walled parts, that is, the LED light source is located directly behind the light-emitting surface of the thick-walled part, and light is emitted directly through the LED light source; for this type of front position light, the internal structure of the lamp can be seen from the front of the lamp, which affects the appearance. At the same time, there are gaps in the arrangement of multiple LED lamp beads of the LED light source, which makes the bright spots at the positions of the LED lamp beads obvious, and there are obvious dark areas in the gaps between the LED lamp beads. Due to the long length of the through-type front position light, this defect will be magnified. Summary of the invention

[0003] The object of the present invention is to provide a vehicle front position lamp, so as to improve the light uniformity to a certain extent and avoid uneven brightness of the light emitting surface of the lamp.

[0004] The present invention provides a vehicle front position lamp, comprising a lamp inner cavity defined by a lamp housing and a light distribution mirror, wherein a light source assembly and a thick-walled member are arranged in the lamp inner cavity;

[0005] The thick-walled member has a front-to-rear direction along the first direction, and the front end of the thick-walled member faces the light distribution mirror and forms a light emitting surface;

[0006] The rear end of the thick-walled member faces the lamp housing, the light source assembly is arranged above the upper end of the thick-walled member, a condenser is arranged at a position opposite to the light source assembly, and a reflective surface is formed at the rear end of the thick-walled member;

[0007] The light emitted by the light source assembly can be focused and reflected by the concentrator to the inside of the thick-walled part, and then totally reflected by the reflection surface to the light emitting surface.

[0008] Further, the thick-walled member has a left-right direction along a second direction, and the second direction is perpendicular to the first direction;

[0009] The light source assembly comprises a plurality of LED lamp beads, the plurality of LED lamp beads are arranged side by side and spaced apart along the second direction, the concentrator has a length along the second direction, and the length of the concentrator is not less than the arrangement length of the plurality of LED lamp beads in the second direction;

[0010] The length of the reflecting surface in the second direction is equal to the length of the concentrator and is greater than the length of the light emitting surface in the second direction.

[0011] Furthermore, a decorative frame is provided in the inner cavity of the lamp, and the decorative frame is provided with a first through hole. The decorative frame is adaptively sleeved on the front end of the thick-walled member through the first through hole.

[0012] Furthermore, there is a first predetermined distance d1 between the upper and lower sides of the thick-walled member located in the first through hole and the side walls of the first through hole opposite thereto, and 0.3 mm ≤ d1 ≤ 1 mm.

[0013] Furthermore, the light distribution mirror is a two-color light distribution mirror, including a black area and a white area;

[0014] The black area is formed on a side of the white area facing the lamp housing, and a second through hole is provided in a region of the black area opposite to the light emitting surface of the thick-walled member.

[0015] Furthermore, there is a second predetermined distance d2 between the upper surface of the front end of the thick-walled member and the upper side wall of the second through hole, and between the lower surface of the front end of the thick-walled member and the lower side wall of the second through hole, 1.0mm≤d2≤2mm.

[0016] Furthermore, both the reflective surface and the light emitting surface of the thick-walled part are provided with optical patterns.

[0017] Furthermore, the angle between the reflective surface of the thick-walled component and the lower surface of the thick-walled component is 135°, and the angle between the reflective surface of the thick-walled component and the normal of the concentrator is 45°.

[0018] Furthermore, the light source assembly further comprises a PCB board, the LED lamp beads are mounted on the PCB board, and the PCB board is a plurality of spliced ​​pieces;

[0019] The distance between the top of the concentrator and the upper surface of the rear end of the thick-walled member is not less than 5 mm, and the distance between the PCB board and the concentrator is not less than 1.8 mm.

[0020] Furthermore, the photometric mirror is snap-connected to the lamp housing, and a sealant is provided between the contact surfaces of the photometric mirror and the lamp housing.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The vehicle front position lamp provided by the present invention comprises a lamp housing, a light distribution mirror, a light source assembly and a thick-walled member, wherein the light distribution mirror is connected to the lamp housing and defines a lamp inner cavity, and the light source assembly and the thick-walled member are both installed in the lamp inner cavity. The thick-walled member has a front-to-back direction along a first direction, the front end of the thick-walled member faces the light distribution mirror and forms a light emitting surface, the rear end of the thick-walled member faces the lamp housing and forms an inclined reflecting surface, the light source assembly is arranged above the rear end of the thick-walled member, and a condenser is arranged on the upper side of the rear end of the thick-walled member at a position opposite to the light source assembly, so that after the light source assembly is lit, the direction emitted by the light source assembly can enter the interior of the thick-walled member after being condensed by the condenser and reflected to the reflecting surface of the thick-walled member, and then be totally reflected to the light emitting surface of the thick-walled member through the reflecting surface, and finally be scattered to the light distribution mirror through the light emitting surface of the thick-walled member and emitted; thereby achieving uniform light emission of the vehicle front position lamp, avoiding the presence of an obvious dark area after the vehicle front position lamp is lit, and also making it difficult to observe the internal structure of the lamp from the front of the lamp, thereby improving the aesthetics of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structure of a vehicle front position lamp under a first viewing angle provided by an embodiment of the present invention;

[0025] Figure 2 A schematic structural diagram of a vehicle front position lamp under a second viewing angle provided by an embodiment of the present invention.

[0026] Reference numerals:

[0027] 1-lamp housing, 2-light source assembly, 21-PCB board, 22-LED lamp bead, 3-thick wall part, 31-reflection surface, 32-light emitting surface, 4-decorative frame, 41-first through hole, 5-light distribution mirror, 51-black area, 52-white area, 53-second through hole, 6-concentrator. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0030] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] 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.

[0033] Refer to the following Figure 1 and Figure 2 A vehicle front position lamp according to some embodiments of the present application is described.

[0034] The present application provides a vehicle front position lamp, such as Figure 1 and Figure 2As shown, the vehicle front position lamp includes a lamp housing 1, a photometric mirror 5, a light source assembly 2 and a thick-walled component 3, wherein the photometric mirror 5 is connected to the lamp housing 1 and defines a lamp inner cavity, and the light source assembly 2 and the thick-walled component 3 are both installed in the lamp inner cavity. The thick-walled part 3 has a front-to-rear direction along the first direction, the front end of the thick-walled part 3 faces the light distribution mirror 5 and is formed with a light emitting surface 32, the rear end of the thick-walled part 3 faces the lamp housing 1 and is formed with an inclined reflecting surface 31, the light source assembly 2 is arranged above the rear end of the thick-walled part 3, and a concentrator 6 is arranged on the upper side of the rear end of the thick-walled part 3 at a position opposite to the light source assembly 2, so that after the light source assembly 2 is lit, the light emitted by the light source assembly 2 can enter the interior of the thick-walled part 3 after being focused by the concentrator 6 and reflected to the reflecting surface 31 of the thick-walled part 3, and then be totally reflected by the reflecting surface 31 to the light emitting surface 32 of the thick-walled part 3, and finally be scattered to the light distribution mirror 5 through the light emitting surface 32 of the thick-walled part 3 and emitted; thereby achieving uniform lighting of the front position lamp of the vehicle, avoiding the existence of obvious dark areas after the front position lamp of the vehicle is lit, and also making it difficult to observe the internal structure of the lamp from the front of the lamp, thereby improving the aesthetics of the lamp.

[0035] In one embodiment of the present application, preferably, the thick-walled member 3 has a left-right direction along the second direction, and the second direction is perpendicular to the first direction. The light source assembly 2 includes a plurality of LED lamp beads 22, and the plurality of LED lamp beads 22 are arranged side by side and spaced along the second direction. The concentrator 6 has a predetermined length along the second direction, and the length of the concentrator 6 is not less than the length of the plurality of LED lamp beads 22 arranged in the second direction, so that the plurality of LED lamp beads 22 all fall within the range of the concentrator 6, and each LED lamp bead 22 is located at the focus of the concentrator 6. At the same time, the length of the reflective surface 31 of the thick-walled member 3 in the second direction is equal to the length of the concentrator 6 in the second direction, and is greater than the length of the light-emitting surface 32 of the thick-walled member 3 in the second direction. Thereby, it is ensured that when the front position lamp of the vehicle is lit, the projection area of ​​the light reflected by the reflective surface 31 to the light-emitting surface 32 is greater than the area of ​​the light-emitting surface 32, and it is ensured that the edges and corners of the left and right ends of the light-emitting surface 32 in the second direction can also be projected with light, so as to avoid the dark areas at the edges and corners at both ends and cause uneven light emission.

[0036] In one embodiment of the present application, preferably, Figure 1 and Figure 2 As shown, the vehicle front position lamp further includes a decorative frame 4, which is also arranged in the inner cavity of the lamp and is provided with a first through hole 41, which is matched with the thick-walled member 3, so that the front end of the thick-walled member 3 can pass through the decorative frame 4 through the first through hole 41. Thus, the decorative frame 4 is used as a first shielding layer to effectively shield the internal structure of the lamp, and also shield the stray light emitted by the light source assembly 2 that is not condensed by the condenser 6 and the rest of the stray light that is diffusely reflected.

[0037] In this embodiment, preferably, the upper and lower sides of the thick-walled member 3 located in the first through hole 41 and the side walls of the first through hole 41 opposite to each other have a first predetermined spacing d1, that is, the upper side surface of the thick-walled member 3 located in the first through hole 41 and the upper side wall of the first through hole 41 have a first predetermined spacing d1, and the lower side surface of the thick-walled member 3 located in the first through hole 41 and the lower side wall of the first through hole 41 also have a first predetermined spacing d1, and the first predetermined spacing d1 satisfies: 0.3mm≤d1≤1mm, and further preferably, the first predetermined spacing d1 is 0.5mm. This facilitates the assembly of the thick-walled member 3 and the decorative frame 4, and also enables the decorative frame 4 to effectively play a shielding role, so as to effectively shield the internal structure of the lamp and stray light.

[0038] In one embodiment of the present application, preferably, Figure 1 and Figure 2 As shown, the light distribution mirror 5 is two-color injection molded, so that the light distribution mirror 5 is a two-color light distribution mirror 5; specifically, the light distribution mirror 5 includes a black area 51 and a white area 52, the black area 51 is made of black opaque PC material, and the white area 52 is made of white transparent PC material; the black area 51 is formed on the side of the white area 52 facing the lamp housing 1, and a second through hole 53 is provided in the area of ​​the black area 51 opposite to the light exit surface 32 of the front end of the thick-walled member 3 to expose the white area 52, so that the light scattered by the light exit surface 32 of the thick-walled member 3 can be emitted through the white area 52 of the light distribution mirror 5. Therefore, the black area 51 of the two-color light distribution mirror 5 acts as a second shielding layer to shield part of the stray light leaking from the gap between the decorative frame 4 and the thick-walled member 3 due to diffuse reflection, so as to avoid the appearance defects of the position lamp caused by light leakage at the edge of the thick-walled member 3.

[0039] In this embodiment, preferably, there is a second predetermined spacing d2 between the upper side surface of the front end of the thick-walled member 3 and the upper side wall of the second through hole 53, and there is also a second predetermined spacing d2 between the lower side surface of the front end of the thick-walled member 3 and the lower side wall of the second through hole 53; the second predetermined spacing d2 satisfies 1.0mm≤d2≤2mm. Further preferably, the second predetermined spacing d2 is 1.5mm, so that the black area 51 of the light distribution lens 5 can effectively play a shielding role, so as to effectively shield part of the stray light leaking from the gap between the decorative frame 4 and the thick-walled member 3 due to diffuse reflection.

[0040] In one embodiment of the present application, preferably, the reflective surface 31 and the light-emitting surface 32 of the thick-walled part 3 are both provided with optical patterns, such as corn grain patterns, stripes, triangular patterns, etc.; through the optical pattern on the reflective surface 31, the light that is focused by the concentrator 6 and reflected onto the reflective surface 31 can be more fully and effectively reflected to the light-emitting surface 32; at the same time, through the optical pattern on the light-emitting surface 32, the light can be scattered to the light distribution lens 5 to the greatest extent, so that the light is evenly scattered, thereby achieving a uniform light effect and improving the light utilization rate of the light source.

[0041] In one embodiment of the present application, preferably, the angle between the reflective surface 31 of the thick-walled member 3 and the lower surface of the thick-walled member 3 is 135°, and the angle between the reflective surface 31 of the thick-walled member 3 and the normal of the concentrator 6 is 45°. This ensures that the light reflected by the concentrator 6 is fully reflected to the light-emitting surface 32 to the greatest extent, thereby improving the utilization rate of the LED light source.

[0042] In one embodiment of the present application, preferably, the light source assembly 2 also includes a PCB board 21, and the LED lamp beads 22 are installed on the PCB board 21. The PCB board 21 is a plurality of spliced ​​pieces, so that the multiple LED lamp beads 22 can be evenly arranged on the PCB, which is also convenient for installation and increases fault tolerance.

[0043] In this embodiment, preferably, the distance between the top of the concentrator 6 and the upper surface of the rear end of the thick-walled part 3 is not less than 5 mm, and the distance between the PCB board 21 and the concentrator 6 is not less than 1.8 mm, so as to avoid these structures being directly seen from the front of the lamp.

[0044] In one embodiment of the present application, preferably, the photometric lens 5 is connected to the lamp housing 1 by a snap-fit, and a sealant is provided between the contact surfaces of the photometric lens 5 and the lamp housing 1, thereby facilitating the connection and increasing the installation strength.

[0045] In one embodiment of the present application, preferably, both ends of the rear side of the lamp housing 1 are provided with air permeable caps to dissipate heat and balance the internal and external air pressure when the lamp is lit and works for a long time.

[0046] Preferably, the inner wall of the light distribution mirror 5 is provided with an anti-fog coating to prevent the lamp from fogging due to excessively high ambient humidity or untimely heat dissipation; at the same time, the outer side of the light distribution mirror 5 is UV hardened to increase the outer surface strength of the front position lamp to ensure that the front position lamp will not be worn or cracked under the impact of gravel.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle front position lamp, characterized in that: The lamp comprises an inner cavity defined by a lamp housing and a light distribution mirror, wherein a light source assembly and a thick-walled member are arranged in the inner cavity of the lamp; The thick-walled member has a front-to-rear direction along the first direction, and the front end of the thick-walled member faces the light distribution mirror and forms a light emitting surface; The rear end of the thick-walled member faces the lamp housing, the light source assembly is arranged above the upper end of the thick-walled member, a condenser is arranged at a position opposite to the light source assembly, and a reflective surface is formed at the rear end of the thick-walled member; The light emitted by the light source assembly can be focused and reflected by the condenser to the inside of the thick-walled part, and then totally reflected by the reflection surface to the light emitting surface.

2. The vehicle front position lamp according to claim 1, characterized in that: The thick-walled member has a left-right direction along a second direction, the second direction being perpendicular to the first direction; The light source assembly comprises a plurality of LED lamp beads, the plurality of LED lamp beads are arranged side by side and spaced apart along the second direction, the concentrator has a length along the second direction, and the length of the concentrator is not less than the arrangement length of the plurality of LED lamp beads in the second direction; The length of the reflecting surface in the second direction is equal to the length of the concentrator and is greater than the length of the light emitting surface in the second direction.

3. The vehicle front position lamp according to claim 1, characterized in that: A decorative frame is provided in the inner cavity of the lamp, and the decorative frame is provided with a first through hole. The decorative frame is adaptively sleeved on the front end of the thick-walled member through the first through hole.

4. The vehicle front position lamp according to claim 3, characterized in that: A first predetermined distance d1 is formed between the upper and lower sides of the thick-walled member located in the first through hole and the side walls of the first through hole opposite thereto, and the distance d1 is 0.3 mm ≤ d1 ≤ 1 mm.

5. The vehicle front position lamp according to claim 1, characterized in that: The light distribution mirror is a two-color light distribution mirror, including a black area and a white area; The black area is formed on a side of the white area facing the lamp housing, and a second through hole is provided in a region of the black area opposite to the light emitting surface of the thick-walled member.

6. The vehicle front position lamp according to claim 5, characterized in that: There is a second predetermined distance d2 between the upper surface of the front end of the thick-walled part and the upper side wall of the second through hole, and between the lower surface of the front end of the thick-walled part and the lower side wall of the second through hole, 1.0mm≤d2≤2mm.

7. The vehicle front position lamp according to claim 1, characterized in that: The reflective surface and the light emitting surface of the thick-walled part are both provided with optical patterns.

8. The vehicle front position lamp according to claim 1, characterized in that: The angle between the reflective surface of the thick-walled component and the lower surface of the thick-walled component is 135°, and the angle between the reflective surface of the thick-walled component and the normal line of the concentrator is 45°.

9. The vehicle front position lamp according to claim 2, characterized in that: The light source assembly further includes a PCB board, the LED lamp beads are mounted on the PCB board, and the PCB board is composed of multiple spliced ​​pieces; The distance between the top of the concentrator and the upper surface of the rear end of the thick-walled member is not less than 5 mm, and the distance between the PCB board and the concentrator is not less than 1.8 mm.

10. The vehicle front position lamp according to claim 1, characterized in that: The light distribution mirror is connected to the lamp housing by buckles, and a sealant is provided between the contact surfaces of the light distribution mirror and the lamp housing.

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