Vehicle lamp thick-wall part

Abstract

The utility model relates to the technical field of car lamps, and provides a car lamp thick-wall piece which comprises a lens, a light guide plate and a light guide plate. At least one side, facing the lens, of the substrate is designed to be a plane; the light guide body is arranged between the substrate and the lens; the LED lamp beads are mounted on the surface, facing the lens, of the substrate; light rays emitted by the LED lamp beads are guided through the light guide body, so that the light rays of the LED lamp beads enter the light inlet in a concentrated mode and are emitted outwards from the other side of the lens. Light is guided in a concentrated mode through the light guide body, then enters the lens from the light inlet of the lens, is reflected and refracted through the lens so as to improve the light intensity, and is emitted outwards from the other side of the lens. According to the structure, through optimization design, under the condition that the light guide body is additionally arranged to guide light rays of the LED lamp beads, at least one face, facing the lens, of the substrate can be designed to be a plane, so that the design difficulty of a PCB is simplified, and the design and production cost of a thick-wall part is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to car lamp technical field, concretely relates to a car lamp thick wall spare. BACKGROUND

[0002] In the field of automobile lighting, thick wall spare as the key optical component in car lamp signal lamp, is widely used in day running lamp, steering lamp, brake lamp and position lamp etc., the component is usually made of transparent PC / PMMA plastic material by injection molding, has excellent optical performance.

[0003] However, when the car lamp shell shape is special-shaped or arc structure, the traditional thick wall spare design usually adopts ladder type structure to adapt, which makes the PCB need to be designed to cooperate with the structure of thick wall spare, such as Figure 1 As shown, PCBA (3) is made of FPC soft plate and ladder type aluminum plate, the PCBA of this structure needs to use FPC and ladder type aluminum plate, and ladder type design is carried out, which increases the design complexity of PCBA, resulting in rising manufacturing cost. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model aims at providing a car lamp thick wall spare which can effectively conduct light and reduce the design complexity of PCBA.

[0005] To solve the above problems, the utility model provides the following technical scheme:

[0006] A car lamp thick wall spare, comprising:

[0007] A lens has a light inlet;

[0008] A substrate is designed as a plane at least towards one side of the lens;

[0009] A light guide body is arranged between the substrate and the lens;

[0010] An LED lamp bead is installed on one side of the substrate towards the lens;

[0011] Wherein, the light emitted by the LED lamp bead is guided by the light guide body, so that the light of the LED lamp bead is concentrated and emitted into the light inlet, and then emitted outwards from the other side of the lens.

[0012] In an embodiment, the light guide body comprises a light guide column, the extension direction of the light guide column is opposite to the illumination direction of the light inlet and the LED lamp bead, and the light of the LED lamp bead is guided by the light guide column.

[0013] In an embodiment, the light inlet is provided in plurality, and the number of the light guide columns is equal to the number of the LED lamp beads and the light inlets.

[0014] In an embodiment, any of the LED lamp beads is spaced apart from the corresponding light inlet by a light guide distance, and any of the light guide distances is equal to the length of a corresponding light guide column.

[0015] In an embodiment, any of the adjacent light guide distances is not equal, and the light guide distance close to the center of the lens is greater than the light guide distance away from the center of the lens.

[0016] In an embodiment, the lens is provided with a light outlet mirror surface for light to be emitted outward, and the light outlet mirror surface is provided on the side of the lens away from the light inlet.

[0017] In an embodiment, the plurality of light inlets are provided in a symmetrical structure around a first axis perpendicular to the center of the lens in a first direction, the plurality of light inlets are provided in a symmetrical structure around a second axis perpendicular to the center of the lens in a second direction, and the plurality of light inlets are away from the substrate in the second direction from both ends of the lens to the center of the lens.

[0018] The first direction is perpendicular to the second direction.

[0019] In an embodiment, the light guide body further comprises a support plate provided between any two adjacent light guide columns and fixedly connected with the two corresponding light guide columns.

[0020] In an embodiment, the light guide body is provided with a light inlet surface, the light inlet surface is provided towards the substrate, the side of the substrate away from the light guide column is provided with an assembly block, and the assembly block is provided with a connecting head.

[0021] The connecting head penetrates into the substrate, the assembly block is located between the light inlet surface and the substrate and abuts against the substrate and the light inlet surface, and the light inlet surface and the substrate are spaced apart by the assembly block.

[0022] In an embodiment, the light inlet is provided with a light transmission groove, the light transmission groove is provided with an arc-shaped lens, and the convex surface of the arc-shaped lens faces the outside of the light inlet.

[0023] The beneficial effects of the present invention are as follows: by using a light guide to guide the light emitted by the LED lamp beads, the light can be concentratedly guided by the light guide and then enter the lens from the light entrance of the lens under a structure in which at least one side of the substrate facing the lens is designed to be flat, and is reflected and refracted by the lens to increase the light intensity, and is emitted outward from the other side of the lens; this structure is optimized in design, and while adding the light guide to guide the light of the LED lamp beads, at least one side of the substrate facing the lens can be designed to be flat, thereby simplifying the design difficulty of the PCB and reducing the design and production costs of thick-walled parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of a conventional thick-walled part of a headlight;

[0025] Figure 2 Another perspective view of a conventional thick-walled part of a headlight;

[0026] Figure 3 This is a three-dimensional diagram of one embodiment of a thick-walled component for a vehicle lamp according to the present invention;

[0027] Figure 4 This is an exploded view of one embodiment of a thick-walled part for a vehicle lamp according to the present invention;

[0028] Figure 5 This is a cross-sectional view of one embodiment of a thick-walled component for a vehicle lamp according to the present invention;

[0029] Figure 6 This is a structural schematic diagram of one embodiment of a thick-walled component for a vehicle lamp according to the present invention.

[0030] Reference numerals:

[0031] 100, thick-walled part of the headlight; 110, lens; 100a, light; 111a, light inlet; 111, substrate; 112, light guide; 113, LED lamp bead; 2111, light guide column; 1111, light output mirror; a1, first axis; a2, second axis; 2112, support plate; 2113, light incident surface; 3111, assembly block; 3112, connector; 311a, light transmission groove; 3121, curved lens. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] In addition, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0034] For the convenience of describing the first direction and the second direction in the embodiments of the present application, the first direction is the up-down direction in the drawings, and the second direction is the front-rear direction in the drawings. Among them, the direction of the z-axis arrow is the "rear" direction in the following text, and the direction of the y-axis arrow is the "down" direction in the following text. In the actual application of the present application, it is not limited to this.

[0035] Please refer to Figures 3-6 The embodiment provides a thick-walled part 100 of a vehicle lamp, which comprises a lens 110, a substrate 111, a light guide body 112 and an LED lamp bead 113. The lens 110 is used for reflecting and refracting light 100a to improve the light intensity of the light 100a. In the embodiment, the lens 110 has a light inlet 111a, the side of the substrate 111 facing the lens 110 is designed as a plane, the LED lamp bead 113 is installed on the side of the substrate 111 facing the lens 110, and the light guide body 112 is arranged between the substrate 111 and the lens 110. The light guide body 112 guides the light 100a emitted by the LED lamp bead 113, so that the light 100a of the LED lamp bead 113 is concentrated and enters the light inlet 111a, and is emitted outward from the other side of the lens 110.

[0036] When the shape of the vehicle lamp shell is a special shape or an arc structure, the traditional thick-walled part design often adopts a stepped structure for adaptation, which makes the PCB need to be designed to match the structure of the thick-walled part. The thick-walled part is usually designed in two structures. One is to make a PCBA by bonding a stepped aluminum plate part with an FPC soft plate as shown in Figure 1 , and the other is to make a PCBA by bonding a stepped aluminum plate part with an FPC soft plate as shown in Figure 2 , and the other is to make a PCBA by bonding a stepped aluminum plate part with an FPC soft plate as shown in Figure 2 In these two ways, the first way increases the design complexity of the PCB, resulting in manufacturing cost, and the second way causes the height of the thick-walled part lens 110 to be too high, resulting in a heavy product and high material cost.

[0037] According to the above scheme, it can be understood that the embodiment uses the light guide body 112 to guide the light 100a emitted by the LED lamp bead 113, so that the light 100a can be concentrated and guided by the light guide body 112 and then enter the lens 110 from the light inlet 111a of the lens 110, and then be reflected and refracted by the lens 110 to improve the intensity of the light 100a, and then be emitted from the other side of the lens 110. The structure is optimized, and in the case of increasing the light guide of the light guide body 112 to the light 100a of the LED lamp bead 113, the substrate 111 is designed as a plane at least towards one side of the lens 110, thereby simplifying the design difficulty of the PCB and reducing the design and production cost of the thick wall part.

[0038] It can be understood that the substrate 111 in the embodiment adopts a PCB board.

[0039] Preferably, the light guide body 112 includes a light guide column 2111, and the extension direction of the light guide column 2111 is opposite to the irradiation direction of the light inlet 111a and the LED lamp bead 113. The light 100a of the LED lamp bead 113 is guided by the light guide column 2111. It can be understood that the light guide column 2111 is designed as a cylindrical structure, and the two ends of the light guide column 2111 are aligned with the light inlet 111a and the front surface of the LED lamp bead 113 respectively, so as to conduct the light 100a of the LED lamp bead 113.

[0040] Preferably, any LED lamp bead 113 is spaced from the corresponding light inlet 111a to form a light guide distance, and any light guide distance is equal to the length of a corresponding light guide column 2111. It can be understood that the embodiment is designed to make any light guide distance equal to the length of a corresponding light guide column 2111, so that one end of the light guide column 2111 is arranged in a gap with the LED lamp bead 113, so that the LED lamp bead 113 can concentrate the light 100a from one end of the light guide column 2111 into the light guide column 2111, and the other end of the light guide column 2111 is arranged in a gap with the light inlet 111a, so that the light 100a is concentrated from the other end of the light guide column 2111 into the light inlet 111a and enters the inside of the lens 110 from the light inlet 111a.

[0041] Preferably, the light inlet 111a is provided in plurality, and the number of light guide columns 2111 is equal to the number of LED lamp beads 113 and light inlets 111a.

[0042] Illustratively, the number of light guide columns 2111 in the embodiment is set to 28, and the number of light guide columns 2111 is set to 28, and the number of LED lamp beads 113 and light inlets 111a is set to 28.

[0043] It can be understood that each light guide column 2111 corresponds to one LED lamp bead 113 and one light inlet 111a, which can make the light rays 100a of each LED lamp bead 113 have corresponding light guide columns 2111 for light guiding, thereby improving the light guiding efficiency and avoiding light waste.

[0044] Preferably, the plurality of light inlets 111a are arranged in a symmetrical structure around the first axis a1 perpendicular to the center of the lens 110 in the first direction, the plurality of light inlets 111a are arranged in a symmetrical structure around the second axis a2 perpendicular to the center of the lens 110 in the second direction, and the plurality of light inlets 111a are away from the substrate 111 along the second direction from both ends of the lens 110 to the center of the lens 110. It can be understood that the first direction and the second direction are designed to be perpendicular to each other in this embodiment. The structure of the plurality of light inlets 111a is a stepped structure, and the light inlets 111a of the stepped structure are not equal in any adjacent light guide distance, and the light guide distance near the center of the lens 110 is greater than the light guide distance away from the center of the lens 110. This structure is adapted to the lamp shell of the vehicle lamp, and the light rays 100a emitted from the lens 110 can match the arc-shaped shell structure of the lamp shell by designing the lens 110 as an arc-shaped structure, and the efficiency of each light guide column 2111 conducting the light rays 100a of the LED lamp bead 113 is maintained at a consistent and high level.

[0045] Preferably, the lens 110 is provided with a light outlet mirror surface 1111 for the light rays 100a to be emitted outward, and the light outlet mirror surface 1111 is arranged on the side of the lens 110 away from the light inlet 111a. It can be understood that the light rays 100a of the LED lamp bead 113 are reflected and refracted in the lens 110 after entering the lens 110 through the light inlet 111a, and then emitted outward from the light outlet mirror surface 1111. In this embodiment, the light outlet mirror surface 1111 is designed as a structure composed of a plurality of block-shaped reflecting mirror surfaces to improve the light outlet effect of the light outlet mirror surface 1111.

[0046] Preferably, the light guide body 112 further comprises a support plate 2112 arranged between any two adjacent light guide columns 2111 and fixedly connected with the corresponding light guide columns 2111 on both sides. It can be understood that the purpose of designing the support plate 2112 is to make the structure of the light guide column 2111 more firm, thereby improving the anti-shock and anti-pressure effect.

[0047] Preferably, the light guide body 112 is provided with a light inlet surface 2113, the light inlet surface 2113 is arranged towards the substrate 111, the side of the substrate 111 away from the light guide column 2111 is provided with an assembly block 3111, and the assembly block 3111 is provided with a connecting head 3112; further, the connecting head 3112 penetrates into the substrate 111, the assembly block 3111 is located between the light inlet surface 2113 and the substrate 111 and abuts against the substrate 111 and the light inlet surface 2113, and the light inlet surface 2113 and the substrate 111 are spaced apart by the assembly block 3111, and the purpose of the spacing arrangement is to make the light inlet surface 2113 have a gap with the LED lamp bead 113 on the substrate 111, so as to avoid the negative influence of the direct abutment of the LED lamp bead 113 and the light inlet surface 2113 on the irradiation effect of the LED lamp bead 113.

[0048] Preferably, the light inlet 111a is provided with a light transmission groove 311a, and the light transmission groove 311a is designed to better accommodate and guide the light rays 100a, so as to facilitate the light rays 100a to be concentrated and enter the inside of the lens 110 from the light inlet 111a, and the light transmission groove 311a is provided with an arc-shaped lens 3121, and the convex surface of the arc-shaped lens 3121 faces the outside of the light inlet 111a, and this design can effectively refract and focus the light rays 100a after entering the lens 110, so as to improve the utilization rate of light and the irradiation effect.

[0049] In summary, the utility model provides a kind of car lamp thick wall piece, light is guided by using light guide body to the light emitted by LED lamp bead, so that light can be concentrated and guided by light guide body and then enter the inside of lens from the light inlet of lens under the structure that the side of substrate at least towards lens is designed as plane, and light intensity is improved by reflection and refraction of lens, and light is emitted from the other side of lens to outside;The structure is optimized and designed, and in the case that light guide body is used to guide the light of LED lamp bead, the side of substrate at least towards lens can be designed as plane, so as to simplify the design difficulty of PCB and reduce the design and production cost of thick wall piece.

[0050] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them;Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art will understand that they can modify the technical solutions described in the foregoing examples, or make equivalent substitutions for part of the technical features;And these modifications or substitutions do not drive the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A thick-walled part for a vehicle lamp, characterized in that: include: a lens having a light entrance; A substrate, at least one side of which faces the lens is designed to be flat; a light guide disposed between the substrate and the lens; LED lamp beads are installed on the side of the substrate facing the lens; The light emitted by the LED lamp beads is guided by the light guide body so that the light of the LED lamp beads is concentratedly emitted into the light inlet and emitted outward from the other side of the lens.

2. The thick-walled part of a vehicle lamp according to claim 1, characterized in that: The light guide includes a light guide column, the extension direction of the light guide column is opposite to the light inlet and the irradiation direction of the LED lamp bead, and the light of the LED lamp bead is guided through the light guide column.

3. The thick-walled part of a vehicle lamp according to claim 2, characterized in that: The light inlets are arranged in a plurality, and the number of the light guide columns is equal to the number of the LED lamp beads and the light inlets.

4. The thick-walled part of a vehicle lamp according to claim 2, characterized in that: Any of the LED lamp beads is spaced from the corresponding light inlet to form a light guide spacing, and any of the light guide spacing is equal to the length of a corresponding light guide column.

5. The thick-walled part of a vehicle lamp according to claim 4, characterized in that: The spacing between any adjacent light guides is not equal, and the spacing between the light guides close to the center of the lens is greater than the spacing between the light guides far from the center of the lens.

6. The thick-walled part of a vehicle lamp according to claim 1, characterized in that: The lens is provided with a light-emitting mirror surface for emitting light outwards, and the light-emitting mirror surface is arranged on a side of the lens away from the light inlet.

7. The thick-walled part of a vehicle lamp according to claim 4, characterized in that: The plurality of light inlets are arranged in a symmetrical structure around a first axis perpendicular to the center of the lens along a first direction as a symmetric axis, and the plurality of light inlets are arranged in a symmetrical structure around a second axis perpendicular to the center of the lens along a second direction as a symmetric axis, and the plurality of light inlets are away from the substrate along the second direction from both ends of the lens toward the center of the lens; The first direction is perpendicular to the second direction.

8. The thick-walled part of a vehicle lamp according to claim 2, characterized in that: The light guide body further includes a support plate, which is arranged between any two adjacent light guide pillars and fixedly connected to the light guide pillars corresponding to the two sides.

9. The thick-walled part of a vehicle lamp according to claim 2, characterized in that: The light guide is provided with a light incident surface, the light incident surface is arranged toward the substrate, a mounting block is provided on a side of the substrate away from the light guide column, and a connector is provided on the mounting block; The connector is inserted into the substrate, the assembly block is located between the light incident surface and the substrate and abuts against the substrate and the light incident surface, and the light incident surface and the substrate are spaced apart by the assembly block.

10. The thick-walled part of a vehicle lamp according to claim 1, characterized in that: A light-transmitting groove is provided in the light entrance, and a curved lens is provided at the bottom of the light-transmitting groove, with the convex surface of the curved lens facing the outside of the light entrance.

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