Touch switch

Abstract

The utility model discloses a touch switch, and relates to the technical field of switches. The shading support is clamped on the PCB, a plurality of touch springs are mounted on the PCB, the icon light-transmitting film is adhered to the upper end surface of the shading support, the upper end surfaces of the touch springs are in contact with the bottom of the icon light-transmitting film, and the upper cover is arranged at the upper end of the icon light-transmitting film; according to the utility model, full light shading of the display panel and a good touch control effect are realized, and an internal light-transmitting icon can be seen through the upper cover, so that operation is realized; and the spring is adopted to replace the original light guide column, so that the cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of switch technology, specifically relating to a touch switch. Background Technology

[0002] Currently, some product control interfaces display icons using a backlighting method. In existing solutions, a light-blocking ring is typically added around the indicator light on the display panel, and the backlighting film for the icon is attached to the top cover or glass plate. Because the product cannot be perfectly fitted during assembly, gaps remain between the backlighting film and the light-blocking ring. Light shines through these gaps, reflecting onto surrounding buttons and creating a faint display, affecting the visual experience. Furthermore, to make the icons large enough, the diameter of the touch spring is generally quite large, which affects touch sensitivity, while using conductive light pillars is too expensive. Utility Model Content

[0003] To address the problems mentioned in the background section, the purpose of this invention is to provide a touch switch.

[0004] This utility model discloses a touch switch, including a top cover, an icon light-transmitting film, a light-shielding bracket, a PCB board, and touch springs. The light-shielding bracket is snapped onto the PCB board, and several touch springs are installed on the PCB board. The icon light-transmitting film is adhered to the upper surface of the light-shielding bracket, and the upper surface of the touch springs contacts the bottom of the icon light-transmitting film. The top cover is provided at the upper end of the icon light-transmitting film.

[0005] As a preferred embodiment, the upper surface of the touch spring is provided with a transparent conductive ink layer.

[0006] As a preferred embodiment, the top cover is a glass panel or a panel made of other materials.

[0007] As a preferred embodiment: the PCB board has a snap-fit ​​groove, and the bottom of the light-shielding bracket is integrally connected with a snap-fit ​​piece, which snaps into the snap-fit ​​groove.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] This invention achieves complete light shielding of the display panel and excellent touch control through the coordinated use of the top cover, icon light-transmitting film, light-shielding bracket, PCB board, and touch spring. Specific advantages include:

[0010] 1. The icons inside are visible through the top cover, allowing for operation.

[0011] Second, to improve the problems of light leakage and insufficient sensitivity, a spring is used to replace the original light guide column, thereby reducing costs. Attached Figure Description

[0012] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0013] Figure 1 This is an exploded structural diagram of the present invention;

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

[0015] In the image: 1-Top cover; 2-Icon translucent film; 3-Light-shielding bracket; 4-PCB board; 5-Touch spring;

[0016] 3-1-Connector;

[0017] 4-1-Card slot. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. The structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0019] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0020] Combination Figure 1 , Figure 2The following technical solution is illustrated in this specific embodiment: It includes a top cover 1, an icon-transparent film 2, a light-shielding bracket 3, a PCB board 4, and touch springs 5. The light-shielding bracket 3 is snapped onto the PCB board 4. Specifically, the PCB board 4 has a snap-fit ​​groove 4-1, and a snap-fit ​​piece 3-1 is integrally connected to the bottom of the light-shielding bracket 3, snapping into the snap-fit ​​groove 4-1. Several touch springs 5 ​​are installed on the PCB board 4. The icon-transparent film 2 is adhered to the upper surface of the light-shielding bracket 3, and the upper surface of the touch springs 5 ​​contacts the bottom of the icon-transparent film 2. A top cover 1 is provided at the upper end of the icon-transparent film 2. The top cover 1 is a glass panel or a panel of other materials. The top cover 1 is tightly attached to the icon-transparent film 2, ensuring a stable touch distance. A transparent conductive ink layer is provided on the upper surface of the touch springs 5. The button area on the icon-transparent film has a layer of transparent conductive ink covering the spring contact side, increasing the button's sensing area and improving touch sensitivity.

[0021] The working principle of this specific implementation is as follows: the light-shielding bracket and the PCB board are connected by a snap-fit, and the bracket can float up and down; the icon light-transmitting film is attached to the light-shielding bracket, blocking the light of the icon light within the bracket ring, allowing light to pass through only at the icon position; the button spring supports the icon light-transmitting film, supporting the light-transmitting film and the light-shielding bracket, with the light-transmitting film tightly attached to the top cover, which is transparent or semi-transparent; the internal light-transmitting icon can be seen through the top cover, thereby realizing operation, improving the problems of light crosstalk and insufficient sensitivity, and using a spring to replace the original light guide column, reducing costs.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A touch switch, characterized by: It includes upper cover (1), icon light transmission film (2), light shielding support (3), PCB board (4), touch spring (5); light shielding support (3) is clamped on PCB board (4), a plurality of touch springs (5) are installed on PCB board (4), icon light transmission film (2) is bonded on the upper end surface of light shielding support (3), the upper end surface of touch spring (5) is in contact with the bottom of icon light transmission film (2), the upper end of icon light transmission film (2) is provided with upper cover (1).

2. The touch switch according to claim 1, wherein: The upper end surface of the touch spring (5) is provided with a transparent conductive ink layer.

3. The touch switch of claim 1, wherein: The upper cover (1) is a glass panel or a panel of other materials.

4. The touch switch of claim 1, wherein: The PCB board (4) is provided with a clamping groove (4-1), and the bottom of the light shielding support (3) is integrally connected with a clamping piece (3-1), and the clamping piece (3-1) is clamped in the clamping groove (4-1).

Images