CN205938999U - Key light guide structure - Google Patents

Abstract

A button light guide structure, the LED lamp is arranged on the PCB main board, including a mounting part vertically arranged on the inner side of the middle frame of the housing and a light guide part buckled on the mounting part; the mounting part is from the middle frame Two ribs extending in parallel on the top, the ribs are oppositely provided with a first buckle; the light guide includes a mounting seat that is consistent with the shape of the button circle, and the mounting seat is provided with a first button corresponding to the first buckle. A fastener, the light guide and the installation part are connected together through the first fastener and the first buckle position, the light guide also includes a light guide ring, the bottom surface of the light guide ring is plane and facing the LED lamp. The utility model cancels the independently installed LED light board by changing the light guide mode, and combines the LED light board and the PCB main board into one, and the LED light set on the PCB main board is directly irradiated on the light guide to play a good role. The light effect simplifies the installation steps, thereby improving production efficiency and reducing costs.

Description

A button light guide structure

【Technical field】

The utility model relates to the technical field of light guide structures, in particular to a key light guide structure.

【Background technique】

In order to beautify the appearance of electrical products such as set-top boxes, DVD players, multimedia players, routers, etc., it is usually necessary to add decorative light guides on the side of the housing. Light materials are used to increase the beauty of the product. This light guide method requires an independent LED light board placed perpendicular to the PCB main board to be placed in the direction opposite to the light guide. Because the LED light board needs to be installed independently, the assembly process is cumbersome and inefficient. Low and increased additional labor and material costs.

【Content of utility model】

In view of this, the utility model provides an improved key light guiding structure.

The utility model adopts the following technical scheme, a button light guide structure, the LED lamp is arranged on the PCB main board, the light guide structure includes a mounting part vertically arranged The light guide on the upper part; the mounting part is two ribs extending in parallel from the middle frame, and the first buckle is oppositely arranged on the ribs; the light guide includes a mounting seat consistent with the shape of the button circumference, A first fastener corresponding to the first buckle is provided on the mounting base, and the light guide and the mounting piece are connected together through the first fastener and the first buckle, and the light guide also includes a light guide ring. The bottom surface of the light guide ring is plane and facing the LED light.

Preferably, the light guide is further provided with a second buckle, and the key is provided with a second buckle, and the button and the light guide are connected together through the second buckle and the second buckle.

Preferably, an inclined surface A1 is formed on the outer wall of the first buckle, an inclined surface B1 is formed on the outer wall of the first fastener, and the inclined surface A1 and the inclined surface B1 are arranged in cooperation; an inclined surface is formed on the outer wall of the second buckle A2, an inclined surface B2 is formed on the outer wall of the second fastener, and the inclined surface A2 is set in cooperation with the inclined surface B2.

Preferably, the middle frame of the housing is provided with an opening that fits in shape with the mounting seat of the light guide.

Preferably, a circular hole is provided in the middle of the mounting seat of the light guide member, and the button is embedded in the mounting seat.

Preferably, the shape of the light guide circle of the light guide member is U-shaped.

Preferably, the surface of the light guide member is frosted.

The beneficial technical effect of the utility model is:

1. By changing the light guide method, the LED light board and the PCB main board are combined into one, and the independently installed LED light board is canceled, and the LED light set on the PCB main board is directly irradiated on the light guide to play a good light guide The effect is to simplify the installation steps, thereby improving production efficiency and reducing costs.

2. The light guide is fastened to the buckle set on the middle frame of the housing through the fastener. The fastener and the buckle are guided by a slope structure, so that the fastener is easy to slide into the buckle, and the operation is convenient and the buckle is firm. In the same way, the button is also fastened to the buckle set on the mounting seat of the light guide through the fastener. There is a round hole in the middle of the mounting seat, and the button is embedded in the mounting seat for fastening, which is convenient to operate.

3. The overall light guide is set to a frosted surface, so that the light can be exported more evenly.

【Description of drawings】

FIG. 1 is a three-dimensional schematic diagram of an angle of the key light guiding structure in the first embodiment.

FIG. 2 is an exploded schematic view of the key light guide structure in Embodiment 1. FIG.

FIG. 3 is a cross-sectional view of the installed key light guide structure in Embodiment 1. FIG.

Fig. 4 is a longitudinal sectional view of the key light guiding structure in Embodiment 1 after installation.

FIG. 5 is an effect diagram after installation of the key light guide structure in Embodiment 1. FIG.

【detailed description】

In order to make the technical scheme and technical effect of this patent clearer, the specific implementation manner of this patent will be described in detail below in conjunction with the accompanying drawings and examples.

Embodiment one:

As shown in FIGS. 1 to 5 , the key light guiding structure in this embodiment includes a mounting part 1 vertically arranged on the inner side of the housing middle frame 100 and a light guiding part 2 buckled on the mounting part. The mounting part 1 is two ribs 11 extending parallelly from the middle frame 100, and the first buckle 111 is oppositely arranged on the ribs. There is a first buckle 211 corresponding to the first buckle 111 on the top, and the light guide 2 and the installation part 1 are connected together through the first buckle 211 and the first buckle 111. The light guide 2 also includes The aperture 22 and the bottom surface of the light guide ring 22 are flat and facing the LED lamps 4 , and several LED lamps 4 are arranged on the PCB main board 5 .

The middle part of the housing middle frame 100 is provided with an opening 6 that fits with the mounting seat 21 of the light guide 2. A round hole is opened in the middle of the mounting seat 21 and a second buckle 212 is set on the inner wall of the round hole. The button 3 is inserted through the round hole. The installation seat 21 is fastened to the second buckle position by the second buckle 31 arranged on both sides of the button 3 .

An inclined surface A1 is formed on the outer wall of the first buckle 111, an inclined surface B1 is formed on the outer wall of the first fastener 211, and the inclined surface A1 and the inclined surface B1 are arranged in cooperation; an inclined surface A2 is formed on the outer wall of the second buckle 212, and the outer wall of the second fastener 31 An inclined surface B2 is formed on the top, and the inclined surface A2 and the inclined surface B2 are arranged in cooperation. When fastening the light guide 2 with the mounting part 1, the slope of the first fastener 211 slides into the mounting part 1 along the slope of the first buckle 111, and the button 3 is fastened to the mounting seat 21 of the light guide 2 When it is on, the slope of the second buckle 31 slides into the mounting seat 21 along the slope of the second buckle 212 .

In this embodiment, in order to cooperate with the light guide effect of the key 3, the mounting seat 21 of the light guide member 2 is set to be consistent with the shape of the circumference of the key 3. The shape of the seat 21 matches, the bottom surface 221 (light incident surface) of the U-shaped light guide ring 22 is a plane, facing the LED lamp 4 arranged on the PCB main board 5, the light emitted by the LED lamp 4 directly shines on the horizontal bottom surfaces of both sides of the light guide ring 221, and then through the light guide ring 22, the irradiated light is evenly transmitted to the mounting seat 21 of the light guide member 2 (that is, the 3 circles of the button). Further, in order to lead out the light irradiated by the LED lamp 4 more evenly, the entire surface of the light guide 2 is designed as a frosted surface, and the diffuse reflection is increased through the frosted surface to enhance the light guiding effect.

The above descriptions are only preferred embodiments of this patent, and are not intended to limit this patent. For those skilled in the art, this patent may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this patent shall be included within the scope of protection of this patent.

Claims (7)

1. A button light guide structure, the LED light is arranged on the PCB main board, it is characterized in that, the light guide structure includes a mounting part vertically arranged on the inner side of the frame in the housing and a fastening fastened on the mounting part A light guide; the mounting part is two ribs extending in parallel from the middle frame, and the first buckle is oppositely arranged on the ribs; the light guide includes a mounting seat consistent with the shape of the button circumference, and the mounting seat There is a first buckle corresponding to the first buckle on the top, and the light guide and the mounting part are connected together through the first buckle and the first buckle. The light guide also includes a light guide ring and a light guide ring The bottom surface is plane and facing the LED light. 2. The button light guide structure according to claim 1, characterized in that, the light guide member is also provided with a second buckle, the button is provided with a second buckle, and the button and the light guide member pass through the second button. The fastener is snapped and connected with the second buckle. 3. The button light guide structure according to claim 2, wherein an inclined surface A1 is formed on the outer wall of the first button, an inclined surface B1 is formed on the outer wall of the first fastener, and the inclined surface A1 and the inclined surface B1 is cooperatingly arranged; an inclined surface A2 is formed on the outer wall of the second buckle, an inclined surface B2 is formed on the outer wall of the second fastener, and the inclined surface A2 and the inclined surface B2 are arranged in cooperation. 4. The key light guide structure according to claim 1, characterized in that, the middle frame of the housing is provided with an opening matching the shape of the mounting seat of the light guide. 5 . The key light guiding structure according to claim 1 , wherein a circular hole is provided in the middle of the mounting seat of the light guiding member, and the key is embedded in the mounting seat. 5 . 6 . The key light guide structure according to claim 1 , wherein the shape of the light guide circle of the light guide member is U-shaped. 7 . 7. The key light guide structure according to any one of claims 1-6, wherein the surface of the light guide member is a frosted surface.