Vehicle lamp glass, brake lamp and vehicle

Abstract

The invention provides vehicle lamp glass, a brake lamp and a vehicle, the vehicle lamp glass comprises a lens structure, the lens structure comprises a first surface, a second surface, a third surface and a fourth surface, the second face is opposite to the first face and located on the side away from the light source. The Fresnel lenses are arranged on the first face, the number of the Fresnel lenses is the same as that of the light sources, and the Fresnel lenses correspond to the light sources one to one; and the convex lenses are arranged on the second surface, and each Fresnel lens corresponds to at least one convex lens. The automobile lamp glass can reduce optical components through which light passes, and the transmissivity is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle lamps, and in particular to a vehicle lamp glass, a brake lamp and a vehicle. Background Art

[0002] Car lights are generally composed of lamp glass, inner lamp glass, LED light source, PCB assembly, lamp housing, etc. The lamp glass is buckled on the outside of the lamp housing, the inner lamp glass is ultrasonically welded to the inside of the lamp housing, the light source and PCB are fixed inside the lamp housing cavity by screws, and the light passes through the inner lamp glass and lamp glass in turn, with low transmittance and low light utilization. In order to meet the light distribution requirements, it is often necessary to increase the LED power, which results in high power consumption. Summary of the invention

[0003] The embodiments of the present invention provide a vehicle lamp glass, a brake lamp and a vehicle to at least solve some of the above technical problems existing in the prior art.

[0004] In a first aspect, an embodiment of the present invention provides a vehicle lamp glass, including a lens structure, wherein the lens structure includes:

[0005] The first side is located close to the light source;

[0006] a second surface, opposite to the first surface and located away from the light source;

[0007] at least one Fresnel lens, disposed on the first surface, the number of the Fresnel lenses being the same as the number of the light sources, and the Fresnel lenses corresponding to the light sources one by one;

[0008] The convex lens is arranged on the second surface, and each Fresnel lens corresponds to at least one convex lens.

[0009] In an optional embodiment, there are multiple Fresnel lenses, and the multiple Fresnel lenses are arranged in a row along the length direction on the first surface, and the multiple Fresnel lenses are arranged in at least one row on the first surface.

[0010] In an optional embodiment, the first surface is evenly divided into a plurality of first units, the plurality of first units are distributed in a rectangular array, and each of the first units forms a Fresnel lens on the first surface.

[0011] In an optional embodiment, the second surface is evenly divided into a plurality of second units, the plurality of second units are distributed in a rectangular array, and the surface of each second unit is a spherical surface, so that each second unit forms a convex lens on the second surface.

[0012] In an optional embodiment, the second unit is a square, and the side length of the second unit and the arch height of the spherical surface satisfy equation (1).

[0013] W1=(0.12-0.18)*H1 (1),

[0014] Wherein, W1 is the arch height of the spherical surface, and H1 is the side length of the second unit.

[0015] In an optional embodiment, the first unit is a square, and the side length of the first unit and the side length of the second unit satisfy formula (2):

[0016] H2=N*H1 (2)

[0017] Wherein, H2 is the side length of the first unit, N is the number of light sources, and H1 is the side length of the second unit.

[0018] In an optional embodiment, the first unit is a square, and the side length of the first unit and the number of rings forming the pattern of the Fresnel lens satisfy formula (3),

[0019] M=[H2 / 3] (3)

[0020] Wherein, H2 is the side length of the first unit, and M is the number of rings forming the pattern of the Fresnel lens.

[0021] In an optional embodiment, a mounting bracket is further included, and the mounting bracket is integrally formed with the lens structure.

[0022] In a second aspect, an embodiment of the present invention provides a brake light, comprising the vehicle light glass of an embodiment of the present invention.

[0023] In a third aspect, an embodiment of the present invention provides a vehicle, comprising a brake light according to an embodiment of the present invention.

[0024] An embodiment of the present invention has the following advantages or beneficial effects:

[0025] The lens structure of the headlight glass of the embodiment of the present invention comprises a first surface and a second surface opposite to each other, the first surface is located on the side close to the light source; the second surface is located on the side away from the light source; the first surface is provided with at least one Fresnel lens, the number of the Fresnel lenses is the same as the number of the light sources, and the Fresnel lenses correspond to the light sources one by one; the second surface is provided with convex lenses, and each Fresnel lens corresponds to at least one convex lens. The light emitted by the light source only needs to pass through the headlight glass, thereby improving the transmittance and light utilization rate, meeting the light distribution requirements with less power, and reducing power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0027] Figure 1 is a schematic structural diagram of a vehicle lamp glass according to an exemplary embodiment;

[0028] Figure 2 is a schematic diagram of a cross-sectional structure of a vehicle lamp glass according to an exemplary embodiment;

[0029] Figure 3 is a schematic cross-sectional structure diagram of a lens structure of a vehicle lamp glass according to an exemplary embodiment;

[0030] Figure 4 is a schematic diagram of an exploded structure of a brake light according to an exemplary embodiment;

[0031] Figure 5 is a schematic diagram showing a principle of a vehicle lamp glass according to an exemplary embodiment.

[0032] Among them, the figure numbers are explained as follows: 1-lens structure, 11-first surface, 12-second surface, 3-Fresnel lens, 4-convex lens, 5-mounting bracket, 51-annular bracket, 52-fixed bracket, 6-light source, 7-hook, 8-connecting column, 9-PCB board, 91-slot, 92-connecting hole. DETAILED DESCRIPTION

[0033] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0034] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0035] See also Figures 1 to 5 An embodiment of the present invention provides a vehicle lamp glass, including a lens structure 1, wherein the lens structure 1 includes a first surface 11 and a second surface 12 opposite to the first surface 11, wherein the first surface 11 is located on a side close to a light source 6, and the second surface 12 is located on a side away from the light source 6, and the light emitted by the light source 6 arranged on one side of the first surface 11 is incident on the lens structure 1 from the first surface 11 and emitted from the second surface 12.

[0036] The vehicle lamp glass of the embodiment of the present invention includes at least one Fresnel lens 3, and the Fresnel lens 3 is arranged on the first surface 11. The light source 6 can be arranged on the central axis of the Fresnel lens 3. After the light emitted by the light source 6 passes through the Fresnel lens 3, parallel light can be formed. The number of the Fresnel lenses 3 can be the same as the number of the light sources 6, and the Fresnel lenses 3 correspond to the light sources 6 one by one. Each light source 6 can be arranged on the central axis of the corresponding Fresnel lens 3.

[0037] The vehicle lamp glass of the embodiment of the present invention includes a convex lens 4, which is arranged on the second surface 12, and each Fresnel lens 3 corresponds to at least one convex lens 4. After the light passes through the convex lens 4 on the second surface 12, it can form light that diffuses outward, which can meet the requirements of light distribution and viewing angle, and the light is uniform and has good visibility.

[0038] The lens structure 1 of the headlight glass of the embodiment of the present invention comprises a first surface 11 and a second surface 12 opposite to each other, wherein the first surface 11 is located on the side close to the light source 6; the second surface 12 is located on the side away from the light source 6; the first surface 11 is provided with at least one Fresnel lens 3, the number of the Fresnel lenses 3 is the same as the number of the light sources 6, and the Fresnel lenses 3 correspond to the light sources 6 one by one; the second surface 12 is provided with convex lenses 4, and each Fresnel lens 3 corresponds to at least one convex lens 4. The light emitted by the light source 6 only needs to pass through the headlight glass, thereby improving the transmittance and light utilization rate, meeting the light distribution requirements with a smaller power, and reducing power consumption.

[0039] The vehicle lamp glass of the embodiment of the present invention can be used for vehicle lamps. In an exemplary embodiment, it can be used for brake lights. For example, the vehicle lamp glass of the embodiment of the present invention can be used for a built-in high-mounted brake light of a car. After the light passes through the lens structure 1 of the vehicle lamp glass of the embodiment of the present invention, the light diffuses outward, meeting the light distribution viewing angle requirement of the high-mounted brake light.

[0040] The lens structure 1 may be a plate body. The first surface 11 and the second surface 12 are two opposite surfaces of the plate body. The shape of the plate body may be determined according to specific circumstances and design requirements. In an exemplary embodiment, the lens structure 1 may be a long strip-shaped plate body. In the lens structure 1, the larger side length is the length, the smaller side length is the width, and the dimension between the first surface 11 and the second surface 12 is the thickness.

[0041] The first surface 11 and the second surface 12 of the lens structure 1 can be planes respectively, and the Fresnel lens 3 is formed on the first surface 11 by processing the first pattern. The Fresnel lens 3 on the first surface 11 can be formed by injection molding.

[0042] The material of the vehicle lamp glass in the embodiment of the present invention may be polyolefin, for example.

[0043] In some embodiments, see Figure 1, the number of the Fresnel lenses 3 is multiple, the multiple Fresnel lenses 3 are arranged in a row along the length direction of the first surface 11, and the multiple Fresnel lenses 3 are arranged in at least one row on the first surface 11. The Fresnel lenses 3 can be arranged in a row along the first direction of the first surface 11, and the first direction can be, for example, the length direction. When the lens structure 1 is a long strip-shaped plate, the first surface 11 and the second surface 12 are basically long strips, and the Fresnel lenses 3 can be arranged in a row on the first surface 11, or can be arranged in multiple rows on the first surface 11. For example, when the vehicle lamp glass of the embodiment of the present invention is applied to the brake light, the Fresnel lenses 3 can be arranged in a row on the first surface 11, and correspondingly, the light source 6 is also arranged in a row along the length direction of the lens structure 1, and corresponds to the Fresnel lenses 3 one by one. The brake light is arranged at the rear window inside the vehicle, and a row of Fresnel lenses 3 and light sources 6 are arranged to meet the warning function of braking. Of course, the Fresnel lenses 3 can be arranged in two or more rows on the first surface 11.

[0044] In some embodiments, see Figure 2 The first surface 11 is evenly divided into a plurality of first units, and the plurality of first units are distributed in a rectangular array, and each first unit forms a Fresnel lens 3 on the first surface 11. By processing the first pattern on the surface of each first unit, each first unit can form a Fresnel lens 3. By evenly dividing the first surface 11 into a plurality of first units, and forming each first unit into a Fresnel lens 3, the effective light transmission area of ​​the lens structure 1 can be covered with Fresnel lenses 3, thereby improving the uniformity of light.

[0045] When the Fresnel lenses 3 are arranged in a row on the first surface 11, the matrix formed by the first unit on the first surface 11 is a row. The length of the lens structure 1 may be equal to the first side length of the first unit multiplied by the number of columns of the matrix. The width of the lens structure 1 may be equal to the second side length of the first unit multiplied by the number of rows of the matrix. The first side length is the side length of the first unit along the length direction of the lens structure 1, and the second side length is the side length of the first unit along the width direction of the lens structure 1. The first unit may be a square, and the first side length is equal to the second side length.

[0046] In some embodiments, the second surface 12 is evenly divided into a plurality of second units, and the plurality of second units are distributed in a rectangular array, and the surface of each second unit is a spherical surface, so that each second unit forms a convex lens 4 on the second surface 12. By evenly dividing the second surface 12 into a plurality of second units and processing the surfaces of the second units into spherical surfaces, each second unit can form a convex lens 4, thereby forming convex lenses 4 distributed in an array on the second surface 12. The convex lenses 4 can cover the entire second surface 12, thereby improving the uniformity of light.

[0047] The second surface 12 has one or more convex lenses 4 corresponding to each Fresnel lens 3. For example, there is a convex lens 4 on the second surface 12 corresponding to a Fresnel lens 3 on the first surface 11, and the light emitted by the light source 6 is incident on the lens structure 1 by the Fresnel lens 3 and emitted by the corresponding convex lens 4. The light emitted by the light source 6 is converted into parallel light by the Fresnel lens 3 and then evenly diffused by the corresponding convex lens 4, thereby improving the viewing angle and making the light uniform. Alternatively, there are multiple convex lenses 4 on the second surface 12 corresponding to a Fresnel lens 3 on the first surface 11, and the light emitted by the light source 6 is incident on the lens structure 1 by the Fresnel lens 3 and emitted by the corresponding multiple convex lenses 4. The light emitted by the light source 6 is converted into parallel light by the Fresnel lens 3 and then evenly diffused by the multiple convex lenses 4, thereby improving the viewing angle and making the light uniform.

[0048] When one Fresnel lens 3 corresponds to a plurality of convex lenses 4 , the side length of the Fresnel lens 3 may be an integral multiple of the side length of the convex lens 4 .

[0049] In some embodiments, see Figure 3 , the second unit is a square, the side length of the second unit and the arch height of the sphere satisfy equation (1),

[0050] W1=(0.12-0.18)*H1 (1),

[0051] Wherein, W1 is the arch height of the spherical surface, and H1 is the side length of the second unit. The second unit is a square, and its side length in the length direction of the lens structure 1 is equal to the side length in the width direction. The arch height W1 of the spherical surface forming the convex lens 4 and the side length of the second unit satisfy formula (1), which can make the light diffuse outward to increase the viewing angle, and the light is uniform. In a specific implementation, W1 = 0.16*H1.

[0052] In some embodiments, see Figure 3 , the first unit is a square, the side length of the first unit and the side length of the second unit satisfy formula (2),

[0053] H2=N*H1 (2)

[0054] Wherein, H2 is the side length of the first unit, N is the number of light sources 6, and H1 is the side length of the second unit. The first unit is a square, and its side length in the length direction of the lens structure 1 is equal to the side length in the width direction, and the side length of the first unit is equal to the side length of a single Fresnel lens 3. Each Fresnel lens 3 corresponds to a light source 6, and the number of light sources 6 is equal to the number of Fresnel lenses 3.

[0055] In some embodiments, see Figure 3 , the first unit is a square, the side length of the first unit and the number of rings forming the pattern of the Fresnel lens 3 satisfy formula (3),

[0056] M=[H2 / 3] (3)

[0057] H2 is the side length of the first unit, and M is the number of rings forming the pattern of the Fresnel lens 3. The first unit is a square, and its side length in the length direction of the lens structure 1 is equal to that in the width direction. The side length of the first unit is equal to that of a single Fresnel lens 3.

[0058] In some embodiments, see Figure 1 , Figure 2 and Figure 4 The headlight glass of the embodiment of the present invention further includes a mounting bracket 5, which is integrally formed with the lens structure 1. The mounting bracket 5 is located on one side of the first surface 11 of the lens structure 1. The mounting bracket 5 can be used to connect with the vehicle body, and the mounting bracket 5 can also be used to connect with the PCB board 9 of the headlight.

[0059] The mounting bracket 5 may be provided with a hook 7, and the PCB board 9 may be connected to the mounting bracket 5 through the hook 7. The PCB board 9 may have a slot 91 corresponding to the hook 7, and the hook 7 cooperates with the slot 91 to connect the PCB board 9 to the mounting bracket 5.

[0060] The mounting bracket 5 may be provided with a connecting column 8. The PCB board 9 may have a connecting hole 92 corresponding to the connecting column 8. The connecting column 8 cooperates with the connecting hole 92 to achieve positioning of the PCB board 9 and the mounting bracket 5.

[0061] The PCB board 9 and the mounting bracket 5 can also be hot-melt riveted through the connecting column 8. One end of the connecting column 8 passes through the connecting hole 92 on the PCB board 9, and the end of the connecting column 8 is hot-melted to form a rivet cap, so that the PCB board 9 and the mounting bracket 5 are connected.

[0062] The PCB board 9 and the mounting bracket 5 can also be threadedly connected through the connecting column 8. One end of the connecting column 8 has a screw hole, and the screw passes through the connecting hole 92 and is threadedly matched with the screw hole to connect the PCB board 9 and the mounting bracket 5.

[0063] The mounting bracket 5 may include an annular bracket 51 , which may be connected to the edge of the second surface 12 of the lens structure 1 . The annular bracket 51 and the lens structure 1 may enclose a cavity with an opening on one side, and the opening is located on a side away from the lens structure 1 .

[0064] The PCB board 9 is connected to the annular bracket 51, and the light source 6 arranged on the PCB board 9 is located in the cavity. The annular bracket 51 may be provided with a hook 7 and / or a connecting column 8, and the PCB board 9 may be connected to the annular bracket 51 through the hook 7 and / or the connecting column 8.

[0065] The mounting bracket 5 further includes a fixing bracket 52, which is connected to the annular bracket 51. The fixing bracket 52 may extend along the width direction of the lens structure 1 and protrude from the annular bracket 51. The fixing bracket 52 may be a hollow structure and communicate with the cavity enclosed by the annular bracket 51 and the lens structure 1.

[0066] See also Figure 4 An embodiment of the present invention provides a brake light, including the vehicle light glass of the embodiment of the present invention.

[0067] In some embodiments, the brake light of the embodiment of the present invention further includes a PCB board 9 and a light source 6, and the light source 6 may be disposed on the PCB board 9. The PCB board 9 may be connected to the lamp glass, and the light source 6 corresponds to the Fresnel lens 3 one by one.

[0068] The PCB board 9 is connected to the mounting bracket 5. The PCB board 9 and the mounting bracket 5 can be connected by at least one of the following methods: snap connection, screw connection, hot melt welding and hot melt riveting.

[0069] In the embodiment of the present invention, the light source 6 may be an LED.

[0070] An embodiment of the present invention provides a vehicle, comprising a brake light according to an embodiment of the present invention.

[0071] In the embodiments of the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. 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.

[0072] In the description of the embodiments of the present invention, it needs to be understood that the directions or positional relationships indicated by the terms "upper" and "lower" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0073] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. 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 embodiment 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0074] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle lamp glass, characterized in that: A lens structure is included, wherein the lens structure includes: The first side is located close to the light source; a second surface, opposite to the first surface and located away from the light source; at least one Fresnel lens, disposed on the first surface, the number of the Fresnel lenses being the same as the number of the light sources, and the Fresnel lenses corresponding to the light sources one by one; The convex lens is arranged on the second surface, and each Fresnel lens corresponds to at least one convex lens.

2. The vehicle lamp glass according to claim 1, characterized in that: There are multiple Fresnel lenses, and the multiple Fresnel lenses are arranged in a row along the length direction on the first surface. The multiple Fresnel lenses are arranged in at least one row on the first surface.

3. The vehicle lamp glass according to claim 2, characterized in that: The first surface is evenly divided into a plurality of first units, and the plurality of first units are distributed in a rectangular array, and each of the first units forms a Fresnel lens on the first surface.

4. The vehicle lamp glass according to claim 3, characterized in that: The second surface is evenly divided into a plurality of second units, and the plurality of second units are distributed in a rectangular array. The surface of each second unit is a spherical surface, so that each second unit forms a convex lens on the second surface.

5. The vehicle lamp glass according to claim 4, characterized in that: The second unit is a square, and the side length of the second unit and the arch height of the spherical surface satisfy equation (1). W1=(0.12-0.18)*H1 (1), Wherein, W1 is the arch height of the spherical surface, and H1 is the side length of the second unit.

6. The vehicle lamp glass according to claim 4, characterized in that: The first unit is a square, and the side length of the first unit and the side length of the second unit satisfy formula (2). H2=N*H1 (2) Wherein, H2 is the side length of the first unit, N is the number of light sources, and H1 is the side length of the second unit.

7. The vehicle lamp glass according to claim 3, characterized in that: The first unit is a square, and the side length of the first unit and the number of rings forming the pattern of the Fresnel lens satisfy the formula (3), M = [H2 / 3] (3) Wherein, H2 is the side length of the first unit, and M is the number of rings forming the pattern of the Fresnel lens.

8. The vehicle lamp glass according to claim 1, characterized in that: It also includes a mounting bracket, which is integrally formed with the lens structure.

9. A brake light, characterized in that: The vehicle lamp glass comprises the vehicle lamp glass according to any one of claims 1 to 8.

10. A vehicle, characterized in that: Includes the brake light as described in claim 9.

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