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Light guide body and vehicle knob structure with same

A technology of light guides and knobs, applied in patterns, optics, light guides and other directions characterized by light projection effects, can solve the problems of large space location, high cost, occupation, etc., and achieve compact and reasonable structure, simple layout, and uniform light output Effect

Pending Publication Date: 2020-06-05
NINGBO FUERDA SMARTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing knob atmosphere light structure generally arranges multiple LEDs along the circumference of the knob on the PCB, which has three disadvantages: first, the use of multiple LEDs results in high cost; The light near the position is brighter, and the light is darker at the position far away from the LED; Third, multiple LEDs are arranged on the substrate, which will occupy a large space and cause the structure of the ambient light to be complicated

Method used

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  • Light guide body and vehicle knob structure with same
  • Light guide body and vehicle knob structure with same
  • Light guide body and vehicle knob structure with same

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] like figure 1 and figure 2 As shown, the vehicle knob structure in this embodiment includes a panel 2 , a knob 1 , a light guide 3 , a bracket 4 and a circuit board 5 . The panel 2 has a cavity 21; the knob 1 is rotatably disposed in the cavity 21 of the panel 2, and there is an annular gap, preferably 5mm, between the outer periphery of the knob 1 and the inner wall of the cavity.

[0024] The light guide 3 is rotatably arranged in the cavity of the panel 2 and the upper end is connected with the knob 1. The light exit portion 33 of the light guide 3 is located in the annular gap and exposes the light surface; since the light exit surface is not blocked, the brightness is higher. High, with energy-saving effect.

[0025] The bracket 4 is axially hollow to form a central through hole 41 for the vertical light guide part 32 of the li...

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PUM

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Abstract

A light guide body comprises a horizontal light guide part, a vertical light guide part and a light emitting part. The vertical light guide part is convexly arranged in the middle of the horizontal light guide part, and a light receiving surface is formed on the bottom surface; the light-emitting part is formed on the periphery of the horizontal light guide part and is annular, a light-emitting face is formed on the outer end face of the light-emitting part, a groove is formed in the upper end face of the middle of the horizontal light guide part, a first full-reflection face is formed on theinner surface of the groove, and a second full-reflection face inclining upwards from inside to outside is formed on the lower end face of the horizontal light guide part. The invention also creatively discloses a vehicle knob structure. The vertical light guide part in the middle transmits light to the periphery after passing through the first total reflection surface, the light enters the lightoutlet part through the second total reflection surface, the light is uniformly transmitted out through the light outlet part, only one luminous body is needed, the cost is low, the arrangement is simple, and the light outlet is uniform.

Description

technical field [0001] The invention relates to a light guide component, in particular to a light guide component applied to a rotary switch, and also relates to a rotary switch. Background technique [0002] With the rapid development of vehicle electronic products, the requirements for products are gradually moving towards the development direction of intelligence and simplicity. Among them, the pursuit of aesthetic appearance is getting higher and higher. The display effect is also particularly important. Regarding the display effect of the lighting, in addition to the variety of color matching, the requirements for the brightness consistency and uniformity of the overall lighting are also getting higher and higher. [0003] Knobs are important operating components on various control panels and are widely used in vehicles of various purposes. In order to make the knob switch achieve the dual effects of nighttime visibility and aesthetics, it is generally necessary to ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V7/00F21V8/00F21W121/00
CPCF21V7/00F21V7/0008F21V7/0058F21V7/0091F21S8/00F21V2200/00F21W2121/00
Inventor 闫帅印陆威文唐华平董禄亮吴瑞杰江邵钏
Owner NINGBO FUERDA SMARTECH CO LTD
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