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Photoelectric switch key and keyboard

A photoelectric switch and key technology, applied in the field of photoelectric switch keys and keyboards, can solve the problems of insensitive pressing, complex structure, etc., and achieve the effect of facilitating the development of miniaturization, improving sensitivity and good user experience

Pending Publication Date: 2020-07-28
DONGGUAN WULIAN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a photoelectric switch button and keyboard, aiming to solve the technical problem that the photoelectric switch button in the prior art is prone to insensitive pressing and complex structure

Method used

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  • Photoelectric switch key and keyboard
  • Photoelectric switch key and keyboard
  • Photoelectric switch key and keyboard

Examples

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. Attached below by reference Figure 1~6 The described embodiments are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0033] In describing the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or...

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PUM

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Abstract

The invention belongs to the technical field of keyboards and particularly relates to a photoelectric switch key and a keyboard. The photoelectric switch key comprises a shell, a circuit board, a photosensitive assembly and a pressing assembly, the photosensitive assembly is electrically connected with the circuit board, a shading part is arranged on the pressing assembly, and the pressing assembly is movably installed on the shell so that the shading part can move relative to a light receiving surface of the photosensitive assembly; when the shading part is far away from the light receiving surface of the photosensitive assembly, the photosensitive assembly can receive external light; when the pressing assembly is pressed, the shading piece gets close to and shades the light receiving face of the photosensitive assembly. When a user presses down the key, the shading piece completely shades light rays emitted to the photosensitive assembly from the light-transmitting area, the functionof the key is achieved, and the sensitivity of the key is effectively improved. And an infrared emission geminate transistor does not need to be additionally arranged to provide a light source, so that the structure is simpler and more compact, and key miniaturization development is facilitated.

Description

technical field [0001] The invention belongs to the technical field of keyboards, in particular to a photoelectric switch key and a keyboard. Background technique [0002] Keyboard keys are generally divided into mechanical contact type and photoelectric switch type. The photoelectric switch type keyboard uses the optical principle and photoelectric coupling technology to form a light path by the emitting element and the receiving element. Change the circuit impedance to realize the circuit switch. In the process of using the existing photoelectric switch button, generally when it is not pressed, the light path is disconnected, and the button is normal at this time; when the operator presses the button, the photosensitive element (receiving element) receives the emitted light The optical signal sent by the component forms a path to change the circuit impedance to realize the circuit switch, so as to realize the button function, but in this way, sometimes when the photosensi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/705H01H13/7065H03K17/969
CPCH01H13/705H01H13/7065H03K17/969H03K17/968H01H2239/022H03K17/9631
Inventor 连俊维
Owner DONGGUAN WULIAN ELECTRONICS TECH
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