A key and keyboard with uniform light emission

Abstract

The utility model discloses a key of even light emission, including light guide shell, the light guide shell is equipped with in the upper cover outside, the light guide shell includes the brim part of upper portion and at least two light guide sheets that extend from the brim part downward, the light guide sheet is corresponded to be provided with light emitting element, and the light emitting element is electrically connected with bottom plate. Through design has brim part and the light guide shell of downward extension light guide sheet, the light from bottom light emitting element is high -efficiently guided to the whole peripheral area of key, realized even, large -area light emission, successfully solved the industry problem of traditional light emitting press shaft brightness deficiency, light efficiency uneven, whole stable structure, assembly process is simple, and easy to automatic production has very high practical value and market prospect.

Description

Technical Field

[0001] This utility model relates to the field of keyboard keys, specifically to a uniformly illuminated key and keyboard. Background Technology

[0002] The mainstream method for implementing the luminous function of push-button switches is to mount LED beads on the circuit board and add an independent light guide post to the switch base. The light emitted by the LED beads is guided by the light guide post and shines out from a limited area above or to the side of the switch body.

[0003] This traditional structure has obvious drawbacks: First, the light source is singular, and the light cannot be evenly distributed around the entire button, resulting in obvious local bright spots and dark areas, and poor visual effect; second, the light guide column, as an additional component, increases the complexity of the structure and the assembly process. Utility Model Content

[0004] To address the aforementioned problems, this utility model aims to provide a key and keyboard with uniform illumination.

[0005] To achieve this technical objective, the present invention provides a uniformly illuminated button, comprising a shaft, an upper cover, a base, an elastic reset member, and a bottom plate. The shaft is movably disposed between the upper cover and the base. The elastic reset member acts on the shaft to provide a reset force. The invention is characterized by further comprising a light guide shell, which is fitted over the upper cover. The light guide shell includes an upper brim and at least two light guide sheets extending downward from the brim. Each light guide sheet is correspondingly provided with a light-emitting element, and the light-emitting element is electrically connected to the bottom plate.

[0006] Preferably, there are two light guide sheets, which are respectively disposed on opposite sides of the light guide shell.

[0007] Preferably, mounting holes are provided on both sides of the top cover corresponding to the light guide sheet, and the light guide sheet passes through the mounting holes to connect the light guide shell to the top cover.

[0008] Preferably, the base has a clearance hole that allows the light guide to pass through, the bottom of the light guide extends through the clearance hole to a position close to the base plate, and the light-emitting element is disposed at the bottom of the light guide.

[0009] Preferably, the light-emitting element is an LED bead electrically connected to the bottom of the base plate, and the base plate has a light-transmitting hole corresponding to the LED bead.

[0010] Preferably, the brim of the light guide housing is provided with a through hole for the upper cover to pass through.

[0011] A keyboard comprising uniformly illuminated keys as described above.

[0012] The beneficial effects of this utility model are: by designing a light guide shell with a brim and a downward-extending light guide plate, the light from the bottom light-emitting element is efficiently guided to the entire peripheral area of ​​the button, achieving uniform and large-area light emission, and successfully solving the industry problems of insufficient brightness and uneven light effect of traditional light-emitting buttons; the overall structure is stable, the assembly process is simple, and it is easy to automate production, which has high practical value and market prospects. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the present invention;

[0015] Figure 3 This is an exploded view of the present invention;

[0016] Figure 4 This is a diagram showing the positional relationship between the light guide shell and the LED beads in this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the upper cover in this utility model;

[0018] Figure 6 This is a schematic diagram of the base in this utility model.

[0019] In the diagram: 1-Light guide shell; 11-Brim; 111-Through hole; 12-Light guide plate; 2-Shaft; 3-Top cover; 31-Mounting hole; 4-Base; 41-Allowing hole; 5-Elastic reset component; 6-Base plate; 61-Light transmission hole; 7-LED lamp bead. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. To provide a clear and complete description of the technical solution, the following embodiments are selected for illustration; these embodiments are only some embodiments of the present invention; other embodiments obtained based on this application without creative effort are all within the scope of protection of the present invention.

[0021] In the following embodiments, it should be noted that the terms "upper," "lower," "left," "right," "inner," "outer," "top / bottom," etc., are all based on the orientation or positional relationship shown in the accompanying drawings and are only for the purpose of clearly describing this embodiment. They do not indicate or imply that the device or element referred to must have a specific orientation, and therefore should not be construed as a limitation of this application. At the same time, the terms "first" and "second" in the embodiments are only used for descriptive purposes and do not represent an indication or implication of relative importance.

[0022] like Figure 1-6 As shown, the specific embodiment of this utility model is a button with uniform light emission, which mainly includes a light guide shell 1, a shaft 2, a top cover 3, a base 4, an elastic reset component 5, and a bottom plate 6.

[0023] The shaft 2 is movably mounted within the accommodating space formed by the snap-fitting of the upper cover 3 and the base 4. The elastic reset element 5 is typically a spring, which is positioned between the shaft 2 and the base 4 to provide a restoring force to the shaft 2 after pressing.

[0024] The light guide shell 1 is the core component of this solution, and is integrally molded from transparent or semi-transparent light guide material through injection molding. Its structure includes: an annular brim 11 located at the top, with a through hole 111 in the center for the top of the upper cover 3 to pass through; and two light guide plates 12 extending vertically downwards from the lower edge of the brim 11. These two light guide plates 12 are preferably arranged symmetrically about the axis of the body on opposite sides.

[0025] During assembly, the light guide housing 1 is fitted onto the outside of the upper cover 3 from top to bottom. Mounting holes 31 are provided on both sides of the upper cover 3 corresponding to the positions of the light guide pieces 12. The light guide pieces 12 pass through these mounting holes 31, thereby achieving initial positioning and connection between the light guide housing 1 and the upper cover 3. Furthermore, corresponding clearance holes 41 are also provided on the base 4. The bottom of the light guide piece 12 passes downward through these clearance holes 41 and eventually extends to a position close to the upper surface of the base plate 6.

[0026] The light-emitting element is an LED bead 7. In this embodiment, the LED bead 7 is directly soldered to the upper or lower surface of the base plate 6 using a surface mount technology. Preferably, the LED bead 7 is soldered to the lower surface of the base plate 6. In this case, a light-transmitting hole 61 is provided on the base plate 6 corresponding to the position of each LED bead 7. After the axial assembly is completed, the bottom of the light guide plate 12 is directly facing the light-transmitting hole 61 on the base plate 6. The light emitted by the LED bead 7 passes through the light-transmitting hole 61, directly illuminating and entering the bottom end face of the light guide plate 12.

[0027] Light is conducted through reflection inside the light guide 12 and is evenly scattered from the side wall and the top brim 11 of the light guide 12, thus giving the entire button a bright and uniform halo effect.

[0028] This application also discloses a keyboard, including a key area, wherein the key area uses multiple uniformly illuminated keys as described in the above embodiments to achieve the effect of uniform illumination of the entire keyboard.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A uniformly illuminated button, comprising a shaft, a top cover, a base, an elastic reset member, and a bottom plate, wherein the shaft is movably disposed between the top cover and the base, and the elastic reset member acts on the shaft to provide a reset force, characterized in that: It also includes a light guide shell, which is fitted over the outside of the top cover. The light guide shell includes a brim at the top and at least two light guide sheets extending downward from the brim. Each light guide sheet is provided with a light-emitting element, which is electrically connected to the base plate.

2. The uniformly illuminated button according to claim 1, characterized in that: There are two light guide sheets, which are respectively disposed on opposite sides of the light guide shell.

3. The uniformly illuminated button according to claim 2, characterized in that: The upper cover has mounting holes on both sides corresponding to the light guide sheet, and the light guide sheet passes through the mounting holes to connect the light guide shell to the upper cover.

4. The uniformly illuminated button according to claim 3, characterized in that: The base has a clearance hole that allows the light guide to pass through. The bottom of the light guide extends through the clearance hole to a position close to the base plate, and the light-emitting element is disposed at the bottom of the light guide.

5. The uniformly illuminated button according to claim 4, characterized in that: The light-emitting element is an LED bead electrically connected to the bottom of the base plate, and the base plate has a light-transmitting hole corresponding to the LED bead.

6. The uniformly illuminated button according to claim 1, characterized in that: The light guide housing has a through hole in the middle of the brim for the upper cover to pass through.

7. A keyboard, characterized in that: Including the uniformly illuminated button as described in any one of claims 1-6.

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