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Ultrathin optical reflective input equipment switch module possessing tooth-shaped structure

A technology of optical reflection and input equipment, which is applied in the direction of electric switches, electrical components, circuits, etc., can solve the problems of large volume, high key height, unsuitable for integration, etc., achieve accurate welding positioning, low cost, and improve production efficiency and quality The effect of stability

Active Publication Date: 2015-12-02
MIKOLTA OPTICAL TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the existing technology of the photoelectric keyboard is inherited from the original traditional mechanical keyboard switch module, its key height is relatively high and the volume is relatively large, which is more suitable for desktop input devices and is not suitable for integration into notebook computers and small portable digital devices. on the device

Method used

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  • Ultrathin optical reflective input equipment switch module possessing tooth-shaped structure
  • Ultrathin optical reflective input equipment switch module possessing tooth-shaped structure
  • Ultrathin optical reflective input equipment switch module possessing tooth-shaped structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] An ultra-thin reflective photoelectric keyboard switch module with a tooth-like structure involved in the present invention, the isometric side decomposition structure of its specific embodiment 1 Figure such as figure 1 Shown, face to face decomposition structure Figure such as figure 2 As shown, it consists of keycap 11, key shaft 12, spring 13, upper fixed shell 14, lower fixed shell 15, bottom PCB board (printed circuit board) 16, SMDIR tube 17 (SurfaceMountedDevicesInfraredRadiation, surface mount infrared diode, or infrared laser diode), SMDPT tube 18 (SurfaceMountedDevicesPhototransistor Surface Mounted Phototransistor). The SMDIR tube 17 is the light emitting device in this embodiment. The SMDPT tube 18 is the light receiving device in this embodiment.

[0068] The light emitting device or the light receiving device is fixed horizontally or vertically on the PCB board 16 by buckling.

[0069] When the light-emitting device is horizontally fixed on the P...

Embodiment 2

[0077] An ultra-thin optical reflective photoelectric keyboard switch module with a toothed structure involved in this embodiment, an optical path channel is formed between the light emitting device and the light receiving device, and the optical path channel can be composed of an optical path switch and a collimating Fresnel It consists of a Err lens and a second refracting prism with a free-form surface.

[0078] The light-emitting device (SMDIR tube 17) and the collimating Fresnel lens are placed vertically, and can be fixed on the PCB board 26 at the bottom of the module or on the upper fixing shell with buckles.

[0079] The light receiving device (SMDPT tube 18) is horizontally fixed on the PCB board 26, and the lower fixing shell 25 has a second through hole near the top of the light receiving device (SMDPT tube 18).

[0080] The above-mentioned optical path switch includes a rack located under the keycap, and a gear or a cam located on the PCB.

[0081] By pressing th...

Embodiment 3

[0086] An ultra-thin optical reflective photoelectric keyboard switch module with a toothed structure involved in this embodiment, an optical path channel is formed between the light emitting device and the light receiving device, and the optical path channel can be composed of an optical path switch and a collimating Fresnel Al lens composition.

[0087] Described light emitting device (SMDIR tube 17) and collimating Fresnel lens, light receiving device (SMDPT tube 18), it adopts the mode of vertical placement, and it can be fixed on the PCB board 36 or On the fixed shell 35.

[0088] The above-mentioned optical path switch includes a rack located under the keycap, and a gear or a cam located on the PCB.

[0089]By pressing the keycap, the lower rack moves up and down to drive the gear or the cam to rotate radially, so as to realize the conduction and disconnection of the optical path. Wherein, the gear is disc-shaped, and the structural features of the cam are: the side cl...

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Abstract

The present invention discloses an ultrathin optical reflective input equipment switch module possessing a tooth-shaped structure. The ultrathin optical reflective input equipment switch module possessing the tooth-shaped structure comprises a keycap, a key shaft, a spring, an upper fixing shell, a lower fixing shell and a PCB, and an ultrathin reflective photoelectric keyboard switch module also comprises a light emitting device and a light receiving device. A light path channel is formed between the light emitting device and the light receiving device and comprises a light path switch, and the light path switch comprises a rack located below the keycap and a gear or a cam located on the PCB. By pressing the keycap, the rack located therebelow moves up and down to drive the gear or the cam to do the radial rotary movement, thereby conducting or disconnecting the light path channel. The ultrathin optical reflective input equipment switch module possessing the tooth-shaped structure has the characteristics of being simple in structure, low in cost and low in switch module height, being convenient to assemble, etc., and the height of the ultrathin optical reflective input equipment switch module is only 1 / 3-1 / 4 of the height of a conventional mechanical shaft keyboard.

Description

Technical field [0001] The invention involves the technical field of electronic device input equipment, and specially involves an input device switch module with an ultra -thin optical reflection with tooth structure. Background technique [0002] The mechanical keyboard is the mainstream of the computer keyboard market. Its working principle is that there is a circuit board at the bottom of the keyboard. There are more than 100 mechanical shafts on the board. Each axis is an independent switch.Transmit from the circuit board to the computer.The performance of mechanical keyboards is outstanding, sensitive, and feels better. At the same time, it is suitable for the needs of office workers and gamers.However, the disadvantages of the pure mechanical axis keyboard switch are: First, the pure mechanical axis switch uses a metal contact sheet to contact the inspiration and disconnection of the non -contact action.Fatigue damage, the ammunition contact point is easy to wear, so that t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H13/02H01H13/20
CPCH01H13/02H01H13/20H01H2231/002H01H2239/022
Inventor 郎欢标
Owner MIKOLTA OPTICAL TECH CO
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