Button switch having guiding device and construction thereof

Abstract

The invention discloses a press key provided with a guiding device, which is installed on a shell body with a curved surface (including a plane) while the shell body is provided with switch contact points and circuits. A springing device is further arranged and a front cover is integrated with the shell body as a whole body if the front cover is available. The press key with the structure of the invention has simple structure, low cost, convenient and high-efficiency installation, portable operation, and stability and durability, and provides waterproof and dustproof functions for circuits in equipment, and has ultra-thin press key with a comparatively large stroke. Furthermore, the press key of the invention does not occupy the resources of a PCB board in the equipment, can be installed on the shell boy with the curved surface (including the plane) in low cost, and is applicable to the press keys and touch switches of electronic equipment with large, middle and small strokes.

Description

Technical field: [0001] The invention relates to an ultra-thin key switch device which is suitable for large, medium and small strokes, can be installed on surfaces of various shapes, and provides waterproof and dustproof functions for equipment, and is suitable for key switches and light touch switches of electronic equipment. Background technique: [0002] see figure 1 , 2 The side sectional structural diagram of the existing button, the existing button 1 relies on the cooperative positioning between the key body 11 and the key hole 30 (through hole) of the front cover 3, when the button 1 is pressed, the push button 10 at the bottom of the button 1 Push the movable contact 40 to move and touch the fixed contact 41 set on the substrate 2 to realize switch triggering. After the external force is released, the elastic device 5 rebounds to make the button 1 return to its normal state, thus completing a switching process. [0003] In this switching process, the existing key ...

AI Technical Summary

Problems solved by technology

The existing button 1 with a stroke of 0.1-0.2mm that has no feeling of touch needs to cooperate with the front cover 3 of the button and the PCB substrate 2 inside the shell, which has a complex structure; high processing requirements; cumbersome and difficult installation, and many influencing factors , It is easy to cause production process problems such as stuck keys or keys that cannot be put in place, and the process guarantee rate is low; the machine must be disassembled to replace the keys; the existing keys not only occupy a large space in the equipment and the area of ​​the PCB, but are also limited. Set up with the PCB plane, it does not have the function of waterproof and dustproof inside the device

The existing buttons have poor effect and high cost, which cannot meet the needs of modern consumers

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