CN209962920U

CN209962920U - Luminous key with good lighting effect

Info

Publication number: CN209962920U
Application number: CN201920905818.6U
Authority: CN
Inventors: 阿萬清人
Original assignee: Shenzhen Stanley Electric Co Ltd
Current assignee: Shenzhen Stanley Electric Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-01-17
Anticipated expiration: 2029-06-14

Abstract

The utility model provides a light-emitting key that it is effectual to light, includes casing, LED light source, lens and circuit board, the casing bottom is located to the circuit board, and the LED light source sets up on the circuit board, and the inside vertical lens that is equipped with of casing, the bottom sensitive surface of lens are located LED light source top. An inward chamfer is formed on the bottom light receiving surface of the lens, and the chamfer is 120 degrees. As shown in fig. 5, the lines with arrows in the figure indicate the irradiation direction of light. The light irradiation angle that uses this design can make to shine is more even. The top of the shell is provided with a top plate, and the top plate is provided with a through hole for the light from the lens to shine. A transparent cover plate is arranged above the top plate. Since the light receiving surface is V-shaped, light from the LED is refracted when entering. Then the number of reflections of the light rays in the lens is increased and the angle at which the light rays reach the light emitting surface can be ensured. The brightness of the light-emitting surface when finally viewed from the front and the side can be relatively even.

Description

Luminous key with good lighting effect

Technical Field

The utility model relates to an electronic product field specifically is a light-emitting button that it is effectual to light.

Background

At present, various devices or articles for daily use electronic products are provided with keys for convenience in operation and control, and the function is conveniently realized at night.

However, light from the LED is difficult to reflect in the lens, and the light distribution on the light emitting surface is closer to the center, so it looks dark when viewed from a side angle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a light-emitting button that it is effectual to light to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a light-emitting key that it is effectual to light, includes casing, LED light source, lens and circuit board, the casing bottom is located to the circuit board, and the LED light source sets up on the circuit board, and the inside vertical lens that is equipped with of casing, the bottom sensitive surface of lens are located LED light source top. The bottom light receiving surface of the lens is provided with an inward chamfer angle which is 120 degrees.

Preferably, a top plate is arranged at the top of the shell, and a through hole is formed in the top plate and used for illuminating light rays from the lens. A transparent cover plate is arranged above the top plate.

Compared with the prior art, the beneficial effects of the utility model are that: since the light receiving surface is V-shaped, light from the LED is refracted when entering. Then the number of reflections of the light rays in the lens is increased and the angle at which the light rays reach the light emitting surface can be ensured. The brightness of the light-emitting surface when finally viewed from the front and the side can be relatively even.

Drawings

Fig. 1 is a schematic structural diagram of a light-emitting key with a good lighting effect.

FIG. 2 is a schematic view of a bottom light-receiving surface of a lens of a light-emitting key with a good lighting effect;

FIG. 3 is a top view of a light-emitting button with good illumination effect;

FIG. 4 is a schematic view of a conventional light-emitting key;

fig. 5 is a light ray diagram of the device.

In the figure: 1. the LED light source comprises a circuit board, 2, an LED light source, 3, a shell, 4, a lens, 5, a top plate, 6, a light receiving surface, 7 and a transparent cover plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, in an embodiment of the present invention, a light-emitting key with a good lighting effect includes a housing, an LED light source, a lens, and a circuit board, wherein the circuit board is disposed at the bottom of the housing, the LED light source is disposed on the circuit board, the lens is vertically disposed inside the housing, and a bottom light-receiving surface of the lens is located above the LED light source. An inward chamfer is formed on the bottom light receiving surface of the lens, and the chamfer is 120 degrees. As shown in fig. 5, the lines with arrows in the figure indicate the irradiation direction of light. The light irradiation angle that uses this design can make to shine is more even.

The top of the shell is provided with a top plate, and the top plate is provided with a through hole for the light from the lens to shine. A transparent cover plate is arranged above the top plate.

Since the light receiving surface is V-shaped, light from the LED is refracted when entering. Then the number of reflections of the light rays in the lens is increased and the angle at which the light rays reach the light emitting surface can be ensured. The brightness of the light-emitting surface when finally viewed from the front and the side can be relatively even.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The light-emitting key with the good lighting effect is characterized by comprising a shell, an LED light source, a lens and a circuit board, wherein the circuit board is arranged at the bottom of the shell, the LED light source is arranged on the circuit board, the lens is vertically arranged in the shell, a bottom light receiving surface of the lens is positioned above the LED light source, and an inward cutting angle is formed in the bottom light receiving surface of the lens and is 120 degrees.

2. The illuminated key of claim 1, wherein a top plate is disposed on the top of the housing, a through hole is formed in the top plate for illuminating light from the lens, and a transparent cover plate is disposed above the top plate.