Novel light guide support structure for car lamp

Abstract

The utility model discloses a novel light guide support structure for a car lamp, which relates to the technical field of car lamps and comprises a lamp shell, a car lamp light source part and a light guide. A light source mounting groove is formed in the lamp shell; the automobile lamp light source part comprises a light source heat dissipation part, a light source circuit board and a light guide positioning part. A light guide clamping block and a light guide refracting surface are arranged on the light guide; the automobile lamp light guide is positioned and installed, the light source heat dissipation part, the light source circuit board and the light guide positioning part are integrated into a whole and are positioned and installed in the groove on the rear side of the lamp shell, so that stability of all parts after installation is guaranteed, and the distance between the light guide end face clamped through the light guide positioning part and the automobile lamp light source is fixed. The light guiding-in light end is fixed through the positioning part, the structure is simple, the loss of light in the light guide is reduced, meanwhile, a better optical effect is obtained through assistance of the light guide refracting surface, and then the stroke safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to a novel light guide bracket structure for vehicle lamps. Background Art

[0002] With the application of LED in automobile headlights, the use of light guides matched with them is also increasing. In the prior art, the front end of the light guide needs to be fixed with screws and a corresponding light guide mounting frame to be mounted on the rear shell of the headlight. However, since the existing light guide positioning structure design cannot absorb the tolerances generated by the parts during the production process and assembly, the distance deviation between the LED and the light guide end after assembly is large, which seriously affects the light effect of the LED and the uniformity of the light guide after lighting. At the same time, when the deviation is large, it will also cause the light guide end to be baked, reduce the service life of the light guide and other quality accidents. There is no effective solution yet.

[0003] A headlight light guide positioning structure with application number: 2023219236684 fixes the light guide fixing frame by positioning columns and pressing. Although the use of traditional screw fixing is omitted, the light guide fixing frame will shake due to the vibration of the vehicle during driving, which will affect the transmission of light and thus affect the brightness of the headlight. Utility Model Content

[0004] The purpose of the utility model is to provide a novel light guide bracket structure for vehicle lamps, so as to solve the problem that the existing light guide positioning structure design proposed in the above background technology cannot absorb the tolerances generated by parts in the production process and assembly, resulting in a large deviation in the distance between the LED and the light guide end after assembly, which seriously affects the light effect of the LED and the uniformity of the light guide after lighting; at the same time, when the deviation is large, it will also cause the light guide end to be baked, reduce the service life of the light guide and other quality accidents.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of light guide bracket structure for a vehicle lamp, comprising a lamp housing and a light source mounting groove protruding from the rear wall to the front side near the right end thereof, and a vehicle lamp light source part is embedded in the rear groove of the light source mounting groove, and a light guide connected to the light source mounting groove is arranged on the inner side of the lamp housing; the light source mounting groove is a rectangular groove and a light guide mounting through hole is arranged on the upper half of the frontmost vertical side wall thereof, a plurality of mounting screw holes are arranged on the rear side of the lamp housing around the outer side of the light source mounting groove, and the vehicle lamp light source part is installed by screws; a slot hole is arranged on the lower horizontal side wall of the light source mounting groove; the vehicle lamp light source part comprises a light source heat dissipation part, a light source circuit board, and a light guide positioning part which are arranged in sequence from the back to the front; the light guide body is a long cylindrical light guide and a light guide block protruding to the front side is arranged on the front side of the right end thereof, and a plurality of light guide refractive surfaces are arranged on the rear side along the axial direction of the light guide.

[0006] Preferably, the light source heat dissipation part includes a rectangular heat dissipation mounting plate and a plurality of mounting holes are arranged on the outer side thereof corresponding to the mounting screw holes one by one, a plurality of heat dissipation fins extending vertically to the rear side are arranged on the rear side surface of the heat dissipation mounting plate, a circuit board mounting seat protruding toward the front side is arranged in the middle of the front side surface of the heat dissipation mounting plate, two positioning columns extending toward the front side are arranged in the middle of the circuit board mounting seat, and two positioning plates extending toward the front side are arranged on the outer sides of the left and right sides, and the light source circuit board and the light guide positioning part are jointly positioned and placed by the positioning columns and the positioning plates.

[0007] Preferably, two positioning through holes corresponding to the positions of the positioning columns are provided in the middle of the light source circuit board, positioning slots corresponding to the positions of the two positioning plates are provided on the left and right sides, a car light source is provided on the upper part of the front side of the light source circuit board, and a circuit board slot is provided on the lower part.

[0008] Preferably, the light guide positioning portion includes a light guide positioning plate arranged parallel to the light source circuit board, and positioning baffles extending toward the rear side are arranged on the rear side surface of the light guide positioning plate near each side edge thereof, and the positioning baffles are arranged on the outer side of the circuit board mounting seat and abut against the front side surface of the heat dissipation mounting plate; a light guide positioning hole corresponding to the light guide mounting through hole is arranged on the upper part of the light guide positioning plate, and annular light guide positioning rings extending toward the front and rear sides are arranged on the front and rear sides of the light guide positioning plate around the light guide positioning hole, respectively, and a notch is arranged on the right side of the light guide positioning ring located on the rear side, and a light guide buckle is arranged at the notch.

[0009] Preferably, a limiting column is provided on the rear side of the light guide positioning plate on the outside of the light guide positioning ring (234).

[0010] Preferably, a positioning foot extending to the left or right is provided on both sides of the light guide positioning plate near its four corners, and a foot positioning groove that matches the position of the positioning foot is provided inside the light source installation groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model positions and installs the light guide of the vehicle lamp, integrates the light source heat dissipation part, the light source circuit board and the light guide positioning part into one, and positions and installs them in the groove at the rear side of the lamp housing, thereby ensuring the stability of each component after installation, and the distance between the light guide end face clamped by the light guide positioning part and the vehicle lamp light source is fixed, the light guide light-inlet end is fixed by the positioning part, the structure is simple, the light loss in the light guide is reduced, and at the same time, a better optical effect is obtained with the assistance of the light guide refractive surface, thereby ensuring the travel safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an axonometric drawing;

[0014] Figure 2 for Figure 1 Rear view;

[0015] Figure 3 for Figure 2 Schematic diagram of removing the light source of the headlight;

[0016] Figure 4 for Figure 1 AA section view in;

[0017] Figure 5 for Figure 3 Enlarged view of middle B;

[0018] Figure 6 for Figure 1 Exploded diagram of

[0019] Figure 7 for Figure 6 An enlarged view of C in FIG.

[0020] Figure 8 for Figure 6 Right view of;

[0021] Fig. 9 It is a schematic diagram of the installation of the light guide and the light guide positioning part;

[0022] In the figure: lamp housing 1, light source mounting slot 11, light guide mounting through hole 12, mounting screw hole 13, slot hole 14, support foot positioning slot 15, car light source part 2, light source heat dissipation part 21, heat dissipation mounting plate 211, mounting hole 212, heat sink 213, circuit board mounting seat 214, positioning column 215, positioning sheet 216, light source circuit board 22, positioning through hole 221, positioning slot 222, car light source 223, circuit board slot 224, light guide positioning part 23, light guide positioning plate 231, positioning baffle 232, light guide positioning hole 233, light guide positioning ring 234, light guide buckle 235, limiting column 236, positioning support foot 237, light guide 3, light guide block 31, light guide refractive surface 32. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution in the embodiments of the present utility model is clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Please refer to Figure 1-9 , Figure 1 It is an axonometric drawing; Figure 2 for Figure 1 Rear view; Figure 3 for Figure 2 Schematic diagram of removing the light source of the headlight; Figure 4 for Figure 1 AA section view in; Figure 5 for Figure 3 Enlarged view of middle B; Figure 6 for Figure 1 Exploded diagram of Figure 7 for Figure 6 An enlarged view of C in FIG. Figure 8 for Figure 6 Right view of; Fig. 9 This is a schematic diagram of the installation of the light guide and the light guide positioning part.

[0025] The utility model provides a novel light guide bracket structure for a vehicle lamp, which is used for fixing the light guide of the vehicle lamp. The utility model comprises a lamp housing 1 for fixing and installing with a vehicle body, a light source installation groove 11 protruding from the rear wall toward the front side is arranged on the rear side wall of the lamp housing 1 near its right end, and a vehicle lamp light source part 2 is embedded in the rear side groove of the light source installation groove 11, and a light guide 3 connected with the light source installation groove 11 is arranged on the inner side of the lamp housing 1.

[0026] The light source mounting groove 11 is a rectangular groove, and a light guide mounting through hole 12 is provided on the upper half of the front vertical side wall of the light source mounting groove 11, which is used to penetrate the front end of the light guide 3 for installation; a plurality of mounting screw holes 13 are provided on the rear side surface of the lamp housing 1 around the outside of the light source mounting groove 11, and the car light source part 2 is installed with screws; a slot hole 14 is provided on the lower horizontal side wall of the light source mounting groove 11, and the wiring terminal of the car light harness is used with the car light source part 2 through the slot hole 14.

[0027] The vehicle light source unit 2 includes a light source heat dissipation unit 21, a light source circuit board 22, and a light guide positioning unit 23 which are arranged in sequence from the back to the front;

[0028] The light source heat dissipation part 21 includes a rectangular heat dissipation mounting plate 211, and a plurality of mounting holes 212 are arranged on the outer side of the heat dissipation mounting plate 211, the mounting holes 212 are arranged one by one corresponding to the mounting screw holes 13, and the heat dissipation mounting plate 211 is installed on the rear side of the lamp housing 1 by screws; a plurality of heat dissipation fins 213 extending vertically to the rear side are arranged on the rear side of the heat dissipation mounting plate 211, which are used for heat dissipation of the light source part 2 of the vehicle lamp, a circuit board mounting seat 214 protruding to the front side is arranged in the middle of the front side of the heat dissipation mounting plate 211, and two positioning columns 215 extending to the front side are arranged in the middle of the circuit board mounting seat 214, and two positioning plates 216 extending to the front side are arranged on the outer sides of the left and right sides, and the light source circuit board 22 and the light guide positioning part 23 are jointly positioned and placed by the positioning columns 215 and the positioning plates 216.

[0029] Two positioning through holes 221 corresponding to the positions of the positioning posts 215 are arranged in the middle of the light source circuit board 22, and positioning slots 222 corresponding to the positions of the two positioning plates 216 are arranged on the left and right sides. The light source circuit board 22 is positioned and installed through the positioning through holes 221 and the positioning slots 222; a headlight light source 223 is arranged on the upper part of the front side surface of the light source circuit board 22, and a circuit board slot 224 is arranged on the lower part for connecting with the headlight cable.

[0030] The light guide positioning portion 23 includes a light guide positioning plate 231 arranged in parallel with the light source circuit board 22, and positioning baffles 232 extending to the rear side are arranged on the rear side of the light guide positioning plate 231 near each side thereof, and the positioning baffles 232 are arranged on the outside of the circuit board mounting seat 214 and abut against the front side of the heat dissipation mounting plate 211; a light guide positioning hole 233 corresponding to the light guide mounting through hole 12 is arranged on the upper part of the light guide positioning plate 231, and the front and rear sides of the light guide positioning plate 231 surround the light guide positioning plate 231. The holes 233 are each provided with an annular light guide positioning ring 234 extending to the front and rear sides respectively, and a notch is provided on the right side of the light guide positioning ring 234 located on the rear side, and a light guide buckle 235 is provided at the notch for locking and fixing the light guide 3 for use; when in use, the right end of the light guide 3 is inserted into the light guide positioning hole 233, and then the light guide buckle 235 is clamped with the light guide block 31, and the light guide is pressed to the left side through the light guide block 31 so that its left side surface is close to the light guide positioning ring 234 on the rear side, thereby completing the fixation of the light guide 3.

[0031] A limiting column 236 is provided on the rear side of the light guide positioning plate 231 outside the light guide positioning ring 234 to limit the distance between the light guide positioning plate 231 and the light source circuit board 22, so that the distance between the installed light guide 3 and the headlight light source 223 is fixed.

[0032] In addition, a positioning foot 237 extending to the left or right side is provided on the left and right sides of the light guide positioning plate 231 near its four corners, and at the same time, a foot positioning groove 15 that matches the position of the positioning foot 237 is provided inside the light source mounting groove 11, thereby assisting the positioning and installation of the light guide positioning part 23.

[0033] The main body of the light guide 3 is a long cylindrical light guide, and a light guide block 31 protruding to the front side is arranged on the front side of the right end of the light guide 3, and the light guide block 31 is used in conjunction with the light guide buckle 235 to lock and fix the right end of the light guide 3; a plurality of light guide refractive surfaces 32 are arranged on the rear side surface of the light guide 3 along its axial direction, which are used to assist in guiding the light to the front side of the light guide 3 during the process of guiding the light, so that the light guide 3 is displayed as a whole with highlight.

[0034] The utility model positions and installs the light guide of the vehicle lamp, integrates the light source heat dissipation part, the light source circuit board and the light guide positioning part into one, and positions and installs them in the groove at the rear side of the lamp housing, thereby ensuring the stability of each component after installation, and the distance between the light guide end face clamped by the light guide positioning part and the vehicle lamp light source is fixed, the light guide light-inlet end is fixed by the positioning part, the structure is simple, the light loss in the light guide is reduced, and at the same time, a better optical effect is obtained with the assistance of the light guide refractive surface, thereby ensuring the travel safety.

[0035] Although the embodiments of the utility model have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, it can be understood by ordinary technicians in this field that all other embodiments obtained by making various changes, modifications, substitutions and variations to these embodiments without departing from the principle and spirit of the utility model and without making creative work, all belong to the scope of protection of the utility model.

Claims

1. A novel light guide bracket structure for a vehicle lamp, characterized in that: The invention comprises a lamp housing (1) and a light source installation groove (11) is arranged on the rear side wall thereof near the right end thereof, the rear wall protruding toward the front side, and a vehicle light source part (2) is embedded in the groove on the rear side of the light source installation groove (11), and a light guide (3) connected to the light source installation groove (11) is arranged on the inner side of the lamp housing (1); the light source installation groove (11) is a rectangular groove and a light guide installation through hole (12) is arranged on the upper half of the frontmost vertical side wall thereof, and a light guide installation through hole (12) is arranged on the rear side of the lamp housing (1) around the outer side of the light source installation groove (11). A plurality of mounting screw holes (13) are arranged on the side thereof, and the headlight light source unit (2) is mounted by screws; a slot hole (14) is arranged on the lower horizontal side wall of the light source mounting groove (11); the headlight light source unit (2) comprises a light source heat dissipation unit (21), a light source circuit board (22), and a light guide positioning unit (23) which are arranged in sequence from the back to the front; the main body of the light guide (3) is a long cylindrical light guide and a light guide block (31) protruding toward the front side is arranged on the front right end thereof, and a plurality of light guide refractive surfaces (32) are arranged on the rear side along the axial direction of the light guide (3).

2. The novel light guide bracket structure for vehicle lamp according to claim 1 is characterized in that: The light source heat dissipation part (21) comprises a rectangular heat dissipation mounting plate (211) and a plurality of mounting holes (212) arranged one-to-one corresponding to the mounting screw holes (13) are arranged on the outer side of the heat dissipation mounting plate (211); a plurality of heat dissipation fins (213) extending vertically toward the rear side are arranged on the rear side of the heat dissipation mounting plate (211); a circuit board mounting seat (214) protruding toward the front side is arranged in the middle of the front side of the heat dissipation mounting plate (211); two positioning columns (215) extending toward the front side are arranged in the middle of the circuit board mounting seat (214); two positioning plates (216) extending toward the front side are arranged on the outer sides of the left and right sides; the light source circuit board (22) and the light guide positioning part (23) are positioned and placed by the positioning columns (215) and the positioning plates (216).

3. The novel light guide bracket structure for vehicle lamp according to claim 2 is characterized in that: Two positioning through holes (221) corresponding to the positions of the positioning posts (215) are arranged in the middle of the light source circuit board (22), and positioning slots (222) corresponding to the positions of the two positioning pieces (216) are arranged on the left and right sides; a headlight light source (223) is arranged on the upper part of the front side surface of the light source circuit board (22), and a circuit board slot (224) is arranged on the lower part.

4. The novel light guide bracket structure for vehicle lamp according to claim 3 is characterized in that: The light guide positioning portion (23) comprises a light guide positioning plate (231) arranged in parallel with the light source circuit board (22); a positioning baffle (232) extending toward the rear side is arranged on the rear side of the light guide positioning plate (231) near each side edge thereof; the positioning baffle (232) is arranged on the outside of the circuit board mounting seat (214) and abuts against the front side of the heat dissipation mounting plate (211); a light guide positioning hole (233) corresponding to the light guide mounting through hole (12) is arranged on the upper part of the light guide positioning plate (231); an annular light guide positioning ring (234) extending toward the front and rear sides is arranged on the front and rear sides of the light guide positioning plate (231) surrounding the light guide positioning hole (233), and a notch is arranged on the right side of the light guide positioning ring (234) located on the rear side, and a light guide buckle (235) is arranged at the notch.

5. The novel light guide support structure for vehicle lamp according to claim 4 is characterized in that: A limiting column (236) is provided on the rear side of the light guide positioning plate (231) on the outside of the light guide positioning ring (234).

6. The novel light guide support structure for vehicle lamp according to claim 5 is characterized in that: A positioning foot (237) extending to the left or right is provided on both sides of the light guide positioning plate (231) near its four corners, and a foot positioning groove (15) matching the position of the positioning foot (237) is provided inside the light source installation groove (11).

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