Thick wall light-guide module of car lamp

A light guide module and vehicle lamp technology, which is applied in the direction of headlamps, light sources, motor vehicles, etc., can solve the problems of poor appearance effect, etc., and achieve the effect of uniform lighting effect and good appearance effect.

Inactive Publication Date: 2019-05-28
CHONGQING CHANGAN AUTOMOBILE CO LTD
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the light guide is made of transparent material, the internal circuit board structure can be seen through the side wall of the light guide, and the appearance effect is poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thick wall light-guide module of car lamp
  • Thick wall light-guide module of car lamp
  • Thick wall light-guide module of car lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be further described below in conjunction with accompanying drawing.

[0035] Such as Figure 2 to Figure 4 As shown, in this embodiment, a thick-walled light guide module for vehicle lights includes a thick-walled body 4 , LED chips 5 , PCBA board 6 and screws 7 .

[0036] Such as Figure 2 to Figure 4 As shown, the thick-walled body 4 is made of transparent material, and it is divided into three parts: the head, the thick-walled side wall and the root. The head is provided with a light distribution pattern 41, and the light distribution pattern 41 is a four-row matrix arrangement of convex points. The thick-walled sidewall 42 is provided with decorative recesses 43 , and the decorative recesses 43 are in the shape of an inverted cone; in this embodiment, the decorative recesses 43 are arranged on the lower thick-walled sidewall of the thick-walled body 4 . The root includes a light astigmatism groove 44 , a reflective surface 45 , a refle...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a thick wall light-guide module of a car lamp. The thick wall light-guide module comprises a thick wall body, an LED chip and a PCBA, wherein the thick wall body is made of a transparent material and comprises three parts: a head pat, a thick wall side wall and a root part; a light distribution pattern is arranged at the head part of the thick wall body; a light scatteringgroove, a reflective surface, two reflective grooves and a light condensing groove are formed in the root part of the thick wall body; the reflective groove horizontally penetrates through the thick wall body, and the side wall of the reflective groove is formed by connecting a long light transmitting surface, a short light transmitting surface, an arc-shaped light scattering surface and a short light transmitting surface in sequence; the side wall of the light condensing groove is formed by a light condensing cambered surface as well as two reflective planes that are symmetrically arranged onthe left side and the right side of the light condensing cambered surface; the two reflective grooves are symmetrically distributed on the left side and the right side of the light condensing groove;the reflective surface is located above the light condensing groove, and one end, far away from the head part, of the reflective surface tilts downwards; the LED chip is arranged on the PCBA, the PCBA is mounted on the thick wall body, and the LED chip is located under the light condensing cambered surface of the light condensing groove. The thick wall light-guide module is uniform in lighteningeffect and good in appearance effect.

Description

technical field [0001] The invention belongs to the technical field of automobile lamps, and in particular relates to a thick-walled light guide module for automobile lamps. Background technique [0002] At present, the thick wall of automobile lamps mostly adopts LED direct-light structure, such as figure 1 As shown, the PCB board 3 and the LED lamp 2 are arranged directly behind the light guide body 1, and after the LED lamp 2 is lit, the light is directed out of the pattern on the surface of the light guide body 1 through the optical focusing structure. Since this light guide structure has no astigmatism design, the light from the LED lamp 2 will directly shoot out of the surface from the bottom of the light guide body 1, so the brightness of the center of the LED lamp 2 will be significantly different from the brightness of the area between adjacent LED lamps, resulting in a visible appearance. bright spots. In addition, since the light guide is made of a transparent m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F21S41/24F21S41/141F21S43/235F21S43/14F21W102/00F21W107/10F21Y115/10
CPCF21S43/27F21S43/14F21S43/239
Inventor 王增志吴巍
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap