Light guide structure, vehicle lamp and vehicle

Abstract

The utility model particularly discloses a light guide structure, a vehicle lamp and a vehicle, and belongs to the technical field of vehicle lighting. The light guide structure comprises a main body and a light mixing part, and the main body is provided with a light emitting surface; the light mixing part is connected to one end, in the axial direction, of the main body, the peripheral wall of the light mixing part comprises a plurality of spiral inclined walls, the spiral inclined walls are arranged in the circumferential direction of the light mixing part and spirally arranged in the axial direction of the light mixing part, and the end, away from the main body, of the light mixing part is provided with a light inlet face. The multiple spiral inclined walls can be matched with reflected light so that the light can be transmitted to the light-emitting face. According to the light guide structure, the length of the light guide structure is shortened while sufficient light mixing is guaranteed, the light guide can emit light evenly, light loss is reduced, and the light emitting effect of the light guide is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lighting, in particular to a light guide structure, a vehicle lamp and a vehicle. Background Art

[0002] In the related art, a headlight usually uses a light source to illuminate a light guide so that the light guide emits light, thereby realizing the lighting function of the headlight. However, in order to make the light guide emit light uniformly, it is necessary to ensure that the light guide has a sufficient length for sufficient light mixing, which results in a long light guide length, which is difficult to meet the compactness requirements of the headlight. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a light guide structure that can achieve sufficient light mixing within a shorter distance, thereby shortening the length of the light guide.

[0004] The utility model also provides a vehicle lamp having the above light guide structure.

[0005] The utility model also provides a vehicle with the above-mentioned vehicle lamp.

[0006] According to a first aspect of the utility model, a light guide structure is provided, comprising: a main body and a light mixing part, the main body being provided with a light emitting surface; the light mixing part being connected to one axial end of the main body, the outer peripheral wall of the light mixing part comprising a plurality of spiral inclined walls, the plurality of spiral inclined walls being arranged along the circumference of the light mixing part, the spiral inclined walls being arranged in a spiral along the axial direction of the light mixing part, the end of the light mixing part facing away from the main body being provided with a light incident surface, when light enters the interior of the light mixing part from the light incident surface, the plurality of spiral inclined walls can cooperate to reflect the light so as to transmit the light to the light emitting surface.

[0007] A light guide structure according to an embodiment of the utility model has at least the following beneficial effects:

[0008] The embodiment of the utility model provides a light mixing part for mixing light, and connects it to one end of the main body in the axial direction. Then, a light incident surface is provided at the end of the light mixing part away from the main body, and a plurality of spiral inclined walls are provided on the outer peripheral wall of the light mixing part. The plurality of spiral inclined walls are arranged along the circumference of the light mixing part, and the spiral inclined walls are spirally provided along the axial direction of the light mixing part. When light enters the interior of the light mixing part from the light incident surface, the plurality of spiral inclined walls can cooperate to reflect the light to transmit the light to the light-emitting surface. The provision of the plurality of spiral inclined surfaces can increase the number of reflections of the light inside the light mixing part, so that the light can be more effectively mixed within a limited distance, thereby improving the light mixing efficiency of the light mixing part. Not only can the length of the light guide structure be shortened while ensuring sufficient light mixing, but the light guide can also emit light uniformly, thereby reducing light loss and improving the light-emitting effect of the light guide.

[0009] According to some embodiments of the present invention, the cross-section of the light mixing portion is a regular polygon.

[0010] According to some embodiments of the present invention, the edges of the regular polygon are straight lines.

[0011] According to some embodiments of the present invention, the edge of the regular polygon is an arc bent toward the central axis of the light mixing portion.

[0012] According to some embodiments of the present invention, the length of the light mixing portion is a, and satisfies: 25mm≤a≤30mm.

[0013] According to some embodiments of the present invention, the main body and the light mixing unit are integrally formed.

[0014] According to some embodiments of the present invention, the light guide structure is made of polymethyl methacrylate or polycarbonate by injection molding.

[0015] According to a second aspect of the present invention, a vehicle lamp is provided, comprising a light source and the light guide structure disclosed in the first aspect of the present invention, wherein the light source is arranged on a side of the light mixing portion away from the main body to emit light toward the light incident surface.

[0016] A vehicle lamp according to an embodiment of the utility model has at least the following beneficial effects:

[0017] The headlight adopts the light guide structure of the first aspect of the embodiment. The headlight is provided with a light mixing part for mixing light, so that it is connected to one end of the main body in the axial direction. A light incident surface is provided at the end of the light mixing part away from the main body, and a plurality of spiral inclined walls are provided on the outer peripheral wall of the light mixing part. The plurality of spiral inclined walls are arranged along the circumference of the light mixing part, and the spiral inclined walls are spirally provided along the axial direction of the light mixing part. When light enters the light mixing part from the light incident surface, the plurality of spiral inclined walls can cooperate to reflect the light to transmit the light to the light-emitting surface. The provision of the plurality of spiral inclined surfaces can increase the number of reflections of the light inside the light mixing part, so that the light can be more effectively mixed within a limited distance, thereby improving the light mixing efficiency of the light mixing part. Not only can the length of the light guide structure be shortened while ensuring sufficient light mixing, thereby meeting the compactness requirements of the headlight, but the light guide can also emit light evenly, thereby reducing light loss and improving the light-emitting effect of the headlight.

[0018] According to some embodiments of the present invention, two light mixing parts are provided, and the two light mixing parts are respectively connected to two ends of the main body, and two light sources are provided, and the two light sources correspond to the two light mixing parts one by one.

[0019] According to a third aspect of the utility model, a vehicle is provided, comprising the vehicle lamp disclosed in the second aspect of the utility model.

[0020] A vehicle according to an embodiment of the utility model has at least the following beneficial effects:

[0021] The vehicle adopts the headlights of the second aspect embodiment, and a light mixing part for mixing light is arranged on the vehicle, so that the light mixing part is connected to one end on the axial direction of the main body, and a light incident surface is arranged on the end of the light mixing part away from the main body, and a plurality of spiral inclined walls are arranged on the outer peripheral wall of the light mixing part, and the plurality of spiral inclined walls are arranged along the circumference of the light mixing part, and the spiral inclined walls are spirally arranged along the axial direction of the light mixing part. When light enters the interior of the light mixing part from the light incident surface, the plurality of spiral inclined walls can cooperate to reflect the light to transmit the light to the light-emitting surface. The arrangement of the plurality of spiral inclined surfaces can increase the number of reflections of the light inside the light mixing part, so that the light can be more effectively mixed within a limited distance, thereby improving the light mixing efficiency of the light mixing part. Not only can the length of the light guide structure be shortened while ensuring sufficient light mixing, thereby meeting the compactness requirements of the vehicle, but the light guide can also emit light evenly, thereby reducing light loss, improving the light-emitting effect of the vehicle's headlights, and optimizing the vehicle's lighting function.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 A schematic diagram of an embodiment of a light guide structure of the utility model;

[0025] Figure 2 A schematic diagram of a light mixing portion in an embodiment of a light guide structure of the utility model;

[0026] Figure 3 A cross-sectional view of a light mixing portion in an embodiment of a light guide structure of the utility model;

[0027] Figure 4 It is a cross-sectional view of a light mixing portion in another embodiment of a light guide structure of the present invention.

[0028] Reference numerals:

[0029] Light guide structure 1000;

[0030] Main body 100;

[0031] Light mixing unit 200 ; spiral inclined wall 210 ; light incident surface 220 ; regular polygon 230 . DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, inside, outside, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] In the related art, a headlight usually uses a light source to illuminate a light guide so that the light guide emits light, thereby realizing the lighting function of the headlight. However, in order to make the light guide emit light uniformly, it is necessary to ensure that the light guide has sufficient length for sufficient light mixing, which results in a long light guide length and is difficult to meet the compactness requirements of the headlight. In order to adapt to the size of the headlight, some light guides are shortened, resulting in poor light mixing effect, and bright spots or dark areas appear at different positions on the light guide, causing uneven light emission.

[0037] To this end, some embodiments of the present invention provide a light guide structure 1000, which is specifically referred to in the accompanying drawings of the specification. Figure 1-Figure 4 shown.

[0038] It is understandable that the light guide structure 1000 may be a component of a lighting module in a vehicle lamp, and may be used to realize the lighting function of the vehicle lamp. Figure 1As shown, in the embodiment of the utility model, the light guide structure 1000 may include: a main body 100 and a light mixing unit 200, wherein the main body 100 may be provided with a light emitting surface (not shown in the figure), the light mixing unit 200 may mix the light from the light source and transmit it to the inside of the main body 100, and the light emitting surface of the main body 100 may be used for the light inside the main body 100 to emit, thereby realizing the lighting function. It should be noted that in this embodiment, the main body 100 may be arranged to be bent and extended, or may be arranged to be straight and extended, and this embodiment does not limit this.

[0039] Reference Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the light mixing part 200 can be connected to one end of the main body 100 in the axial direction, that is, the light mixing part 200 can be arranged between the main body 100 and the light source. The outer peripheral wall of the light mixing part 200 can include a plurality of spiral oblique walls 210, and the plurality of spiral oblique walls 210 can be arranged along the circumference of the light mixing part 200, and the adjacent spiral oblique walls 210 are connected to each other. The spiral oblique walls 210 are arranged in a spiral along the axial direction of the light mixing part 200. It can be understood that the light mixing part 200 can be regarded as a polygonal prism twisted at a certain angle around the central axis of the light mixing part 200, and the degree of twisting determines the light mixing effect of the light mixing part 200. A light incident surface 220 can be provided at one end of the light mixing part 200 away from the main body 100, and light can be incident into the interior of the light mixing part 200 through the light incident surface 220.

[0040] In the embodiment of the utility model, when light enters the interior of the light mixing part 200 from the light incident surface 220, the plurality of spiral oblique walls 210 can cooperate to reflect the light so as to transmit the light to the light emitting surface. Specifically, after the light enters the light mixing part 200, it will be reflected by each spiral oblique wall 210 to complete the light mixing and emit to the main body 100. It can be understood that the spiral oblique wall 210 can scatter the light at multiple angles when reflecting the light, so that the light diverges, resulting in an increase in the number of reflections experienced by the light in the light mixing part 200, so that the light can be more effectively mixed within a limited distance, thereby improving the light mixing efficiency of the light mixing part 200.

[0041] The embodiment of the utility model provides a light mixing part 200 for mixing light, and connects it to one end of the main body 100 in the axial direction. Then, a light incident surface 220 is provided at one end of the light mixing part 200 away from the main body 100, and a plurality of spiral inclined walls 210 are provided on the outer peripheral wall of the light mixing part 200. The plurality of spiral inclined walls 210 are arranged along the circumference of the light mixing part 200, and the spiral inclined walls 210 are spirally provided along the axial direction of the light mixing part 200. When light enters the inside of the light mixing part 200 from the light incident surface 220, the plurality of spiral inclined walls 210 can cooperate to reflect the light so as to transmit the light to the light-emitting surface. The provision of the plurality of spiral inclined surfaces can increase the number of reflections of the light inside the light mixing part 200, so that the light can be more effectively mixed within a limited distance, thereby improving the light mixing efficiency of the light mixing part 200. Not only can the length of the light guide structure 1000 be shortened while ensuring sufficient light mixing, but also the light guide can emit light uniformly, thereby reducing the loss of light and improving the light-emitting effect of the light guide.

[0042] Reference Figure 3 and Figure 4 As shown, in an embodiment of the utility model, the cross-section of the light mixing portion 200 can be a regular polygon 230. It can be understood that the cross-section of the light mixing portion 200 is a regular polygon 230, that is, the shape and size of each spiral inclined wall 210 are the same, so that the light reflection inside the light mixing portion 200 is orderly, reducing the loss of light. Specifically, in an embodiment of the utility model, the edge of the regular polygon 230 can be a straight line, that is, the surface of each spiral inclined surface is a plane. In another embodiment of the utility model, the edge of the regular polygon 230 can be an arc bent toward the central axis of the light mixing portion 200, that is, the surface of each spiral inclined surface is an inwardly concave inclined surface. The inwardly concave inclined surface can further diverge the light and increase the number of reflections experienced by the light in the light mixing portion 200.

[0043] Reference Figure 2 As shown, in the embodiment of the utility model, the length of the light mixing part 200 can be a, and satisfies: 25mm≤a≤30mm. It can be understood that when the length of the light mixing part 200 is within the range of 25mm to 30mm, it can not only achieve sufficient light mixing, but also make the length size of the light guide structure 1000 meet the compact requirements of the vehicle lamp.

[0044] In an embodiment of the utility model, the main body 100 and the light mixing part 200 can be integrally formed. Specifically, the light guide structure 1000 can be made of polymethyl methacrylate or polycarbonate injection molding, which not only improves the strength and integrity of the light guide structure 1000, but also improves the processing efficiency of the light guide structure 1000.

[0045] The embodiment of the present invention further provides a vehicle lamp, comprising a light source and the light guide structure 1000 of the above embodiment. The light source is disposed on a side of the light mixing portion 200 away from the main body 100 to emit light toward the light incident surface 220 .

[0046] It should be noted that the light source can be an LED lamp bead, a halogen lamp, or other types of light-emitting devices. Those skilled in the art can choose the setting according to actual conditions, and this embodiment does not limit this.

[0047] The vehicle lamp of the embodiment of the utility model adopts the light guide structure 1000 of the above embodiment, and the vehicle lamp is provided with a light mixing part 200 for mixing light, so that it is connected to one end of the main body 100 in the axial direction, and then a light incident surface 220 is provided at the end of the light mixing part 200 away from the main body 100, and a plurality of spiral inclined walls 210 are provided on the outer peripheral wall of the light mixing part 200, and the plurality of spiral inclined walls 210 are arranged along the circumference of the light mixing part 200, and the spiral inclined walls 210 are arranged in a spiral manner along the axial direction of the light mixing part 200. When light enters the light mixing part 200 from the light incident surface 220, the light incident surface 220 is provided. Inside the light portion 200, multiple spiral inclined walls 210 can cooperate to reflect light to transmit the light to the light-emitting surface. The arrangement of multiple spiral inclined surfaces can increase the number of reflections of light inside the light mixing portion 200, so that the light can be mixed more effectively within a limited distance, thereby improving the light mixing efficiency of the light mixing portion 200. This not only shortens the length of the light guide structure 1000 while ensuring sufficient light mixing, thus meeting the compactness requirements of the car lamp, but also enables the light guide to emit light evenly, thereby reducing light loss and improving the lighting effect of the car lamp.

[0048] Since the vehicle lamp adopts all the technical solutions of the light guide structure 1000 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be described in detail here.

[0049] In an embodiment of the utility model, two light mixing parts 200 may be provided, and the two light mixing parts 200 may be respectively connected to the two ends of the main body 100. Two light sources may be provided, and the two light sources may correspond one-to-one to the two light mixing parts 200, that is, the two light sources may respectively emit light toward the corresponding light mixing parts 200.

[0050] An embodiment of the utility model further provides a vehicle, comprising the vehicle lamp of the above embodiment.

[0051] Specifically, the vehicle may be a private car, such as a sedan, SUV, MPV or pickup truck. The vehicle may also be an operating vehicle, such as a van, bus, small truck or large trailer. The vehicle may be a gasoline vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it may be a hybrid vehicle or a pure electric vehicle.

[0052] The vehicle of the embodiment of the utility model adopts the headlight of the above embodiment, and the vehicle is provided with a light mixing part 200 for mixing light, so that it is connected to one end of the main body 100 in the axial direction, and then a light incident surface 220 is provided at the end of the light mixing part 200 away from the main body 100, and a plurality of spiral inclined walls 210 are provided on the outer peripheral wall of the light mixing part 200, and the plurality of spiral inclined walls 210 are arranged along the circumference of the light mixing part 200, and the spiral inclined walls 210 are arranged in a spiral manner along the axial direction of the light mixing part 200. When light enters the light mixing part 200 from the light incident surface 220, 00, multiple spiral inclined walls 210 can cooperate to reflect light to transmit the light to the light-emitting surface. The arrangement of multiple spiral inclined surfaces can increase the number of reflections of light inside the light mixing unit 200, so that the light can be mixed more effectively within a limited distance, thereby improving the light mixing efficiency of the light mixing unit 200. Not only can the length of the light guide structure 1000 be shortened while ensuring sufficient light mixing, thus meeting the compactness requirements of the car lamp, but it can also make the light guide emit light evenly, thereby reducing light loss and improving the lighting effect of the car lamp.

[0053] Since the vehicle adopts all the technical solutions of the headlights of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0054] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings. Finally, it should be explained that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A light guide structure, characterized in that include: A main body having a light-emitting surface; A light mixing portion is connected to one end of the main body in the axial direction, the outer peripheral wall of the light mixing portion includes a plurality of spiral inclined walls, the plurality of spiral inclined walls are arranged along the circumference of the light mixing portion, the spiral inclined walls are arranged in a spiral manner along the axial direction of the light mixing portion, and a light incident surface is provided at one end of the light mixing portion away from the main body. When light enters the interior of the light mixing portion from the light incident surface, the plurality of spiral inclined walls can cooperate to reflect the light so as to transmit the light to the light-emitting surface.

2. The light guide structure according to claim 1, characterized in that: The cross section of the light mixing portion is a regular polygon.

3. The light guide structure according to claim 2, characterized in that: The edges of the regular polygon are straight lines.

4. The light guide structure according to claim 2, characterized in that: The edge of the regular polygon is an arc curved toward the central axis of the light mixing portion.

5. The light guide structure according to claim 1, characterized in that: The length of the light mixing portion is a, and satisfies: 25mm≤a≤30mm.

6. The light guide structure according to claim 1, characterized in that: The main body and the light mixing unit are integrally formed.

7. The light guide structure according to claim 6, characterized in that: The light guide structure is made of polymethyl methacrylate or polycarbonate by injection molding.

8. A vehicle lamp, characterized in that: It comprises a light source and the light guide structure as claimed in any one of claims 1 to 7, wherein the light source is arranged on a side of the light mixing portion away from the main body to emit light toward the light incident surface.

9. The vehicle lamp according to claim 8, characterized in that: There are two light mixing parts, which are respectively connected to two ends of the main body; there are two light sources, which correspond to the two light mixing parts one by one.

10. A vehicle, characterized in that The vehicle lamp comprises the vehicle lamp as claimed in any one of claims 8 to 9.

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