Non-contact type direction key

A non-contact, direction key technology, which is applied in the field of direction keys and instrument operation keyboards, can solve problems such as poor gap coordination between manufacturing processes and technical difficulties in light touch switch installation, and achieve the effect of improving work efficiency

Inactive Publication Date: 2008-11-05
上海海想自动控制技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the installation of tact switches is relatively difficult in the printed board installation technology based on SMD technology, and often requires secondary installation.
The poor coordination between the stroke of the tact switch and the gap between the arch-shaped organic elastic film keys on the panel is often a headache for design engineers and manufacturing processes

Method used

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  • Non-contact type direction key

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Experimental program
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Effect test

Embodiment 2

[0013] Embodiment 2, the technical solution of the present invention can be further improved as follows: a handle 5 is provided on the edge of the shading disk 2, and the handle is located on the same straight line as the axis 6 of the shading disk and the light transmission hole 4 ; At the same time, the four transparent light-transmitting windows 1 are located in the horizontal and vertical directions respectively. When the handle 5 of the shading disk is pulled up, down, left, and right, the light-transmitting hole 4 of the shading disk 2 and the light-transmitting window 1 of the phototransistor overlap naturally. Such a design can realize blind operation by using the hand feeling, which effectively improves work efficiency.

Embodiment 3

[0014] Embodiment 3, the technical solution of the present invention can be further improved as follows: the four direction keys of up, down, left, and right are arranged in a straight line, and a movable light-shielding sheet with a light-transmitting hole is provided to realize the light-transmitting on-off and realize the electronic switch action.

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PUM

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Abstract

The invention belongs to the field of the instrument and meter, relating to the operating keyboard of the instrument and meter, particularly to the direction key in the interactive instrument and meter operating keyboard, characterized in that, a rotatable blanking disk 2 is arranged at the lower middle part of the four transparent photic windows 1 of the four direction keys, wherein the axle center 6 of the blanking disk is arranged at the geometric symmetry center of the four transparent photic windows 1, arranged on the same arc using the axle center 6 of the blanking disk as the center; the arc is provided with a photic hole 4. When the photic hole 4 of the blanking disk 2 rotates to the photic windows 1 of the light sensitive transistor, the light sensitive transistor turns on, which realizes an electronic switch action; when the photic hole 4 of the blanking disk 2 does not rotate to photic windows of the blanking disk, all the light sensitive transistor turnes off.

Description

technical field [0001] The invention belongs to the field of instruments and meters, and relates to an instrument and meters operating keyboard. In particular, it relates to the arrow keys in the interactive instrumentation keyboard. Background technique [0002] In the field of instrumentation, keyboard operation of instrumentation with interactive menu selection of microprocessors has become quite common. In the instrumentation keyboard operation with the interactive menu selection of the microprocessor, the interactive direction key is a commonly used shortcut. The arch-shaped organic elastic film buttons are used to operate. However, the installation of tact switches is relatively difficult in the printed board installation technology based on patch technology, and often requires secondary installation. The poor coordination between the stroke of the tact switch and the gap between the arch-shaped organic elastic film keys on the panel is often a headache for design e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/78
Inventor 朱守云
Owner 上海海想自动控制技术有限公司
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