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A magnetic levitation keyboard with variable elastic curve and its working method

A technology of elastic curve and magnetic levitation, which is applied in the field of electricity, can solve the problem of not having to change the elastic curve, and achieve the effect of overcoming poor contact

Inactive Publication Date: 2016-11-30
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent mainly defines the basic structure of the magnetic levitation keyboard, and does not have methods to change the elastic curve and overcome poor contact.

Method used

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  • A magnetic levitation keyboard with variable elastic curve and its working method
  • A magnetic levitation keyboard with variable elastic curve and its working method
  • A magnetic levitation keyboard with variable elastic curve and its working method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A magnetic levitation keyboard with variable elastic force curve includes a chassis and magnetic levitation keys arranged on the chassis, and the keyboard changes the elastic force of the magnetic levitation keys according to the real-time acquisition of the depressed distance of the magnetic levitation keys.

[0041] Preferably according to the present invention, the magnetic levitation key comprises a fixed casing 5 with an opening above it and a movable structure arranged at the opening, the movable structure comprising a key cap 2, a key shaft 1, a levitation strong magnet 3, a copper foil 4. The key cap 2, the key shaft 1, and the suspended strong magnet 3 are connected in sequence. A copper foil 4 is arranged below the suspended strong magnet 3. The key shaft 1 passes through the opening, and the key The lower end of the shaft 1 enters the fixed casing 5, the upper end of the key shaft 1 is located outside the fixed casing 5, and the suspended strong magnet 3 is re...

Embodiment 2

[0046] According to the magnetic levitation keyboard of Embodiment 1, the difference lies in that the shape of the iron piece 7 is a semicircle.

Embodiment 3

[0048] According to the magnetic levitation keyboard of Embodiment 1, the difference is that the microcontroller 13 has the analog-to-digital converter ADC built-in.

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Abstract

The invention relates to a spring curve variable magnetic suspension keyboard and a working method thereof. A magnetic suspension key comprises a fixed outer casing and a flexible structure; the flexible structure comprises a key cap, a key shaft, a suspension strong magnet and a copper foil; a fixed strong magnet is arranged at a position opposite to the suspension strong magnet; the suspension strong magnet is provided with two iron sheets; a crack is formed between the two sheets. The working method comprises the following steps of A initializing a microcontroller and obtaining e spring curve; B executing the step (2) to the step (4), wherein (2) obtaining pressed distance s' of the magnetic suspension key in real time; (3) controlling the magnetic suspension key elastic force; (4) obtaining key states. According to the spring curve variable magnetic suspension keyboard, the inherent repulsive force cannot be overlarge when the magnetic suspension key is pressed due to the iron sheets, the pressed distance of the magnetic suspension key is detected due to a three-conductor capacitor which is formed by the iron sheets and the copper foil; different touch feels are generated due to adjustment according to user requirements; a problem that poor contact is easy to generate due to mechanical contact points is overcame.

Description

technical field [0001] The invention relates to a magnetic levitation keyboard with variable elastic curve and a working method thereof, belonging to the technical field of electricity. Background technique [0002] The keyboard is one of the commonly used computer peripheral products. At present, the known keyboards are mainly divided into mechanical keyboards, capacitive keyboards and membrane keyboards. Once such keyboards are produced, their feel cannot be changed. It is proportional to the pressing distance; capacitive keyboards are mainly inelastic planes; and membrane keyboards contain rubber pads, and the elasticity and distance have a nonlinear relationship. In real life, people have different needs for keyboard feel in different applications, such as games, typing, and office work, and different people have different preferences. The above types of keyboards are difficult to meet a wide range of needs. On the other hand, both mechanical keyboards and membrane keyb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H13/705
CPCH01H13/705H01H2221/048H01H2227/032
Inventor 王洪君孙超李江涛刘珂
Owner SHANDONG UNIV
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