Key structure of keyboard

Abstract

The invention provides a key structure of a keyboard, and belongs to the technical field of input devices. The key structure solves the technical problems that the key structure of the existing keyboard is poor in hand feeling and is prone to faults. The keyboard comprises a supporting bottom plate, a conductive film is arranged on the supporting bottom plate, the key structure comprises a key capand an elastic rubber cap, the elastic rubber cap has a hollow cone shape, the initial shape of the elastic rubber cap is a contracted state, a first permanent magnet is fixedly arranged on a bottomsurface of the key cap, a second permanent magnet is arranged below the first permanent magnet, the lower end of the elastic rubber cap is disposed on the supporting bottom plate, the upper end of theelastic rubber cap is clamped between the first permanent magnet and the second permanent magnet, and the two opposite side faces of the first permanent magnet and the second permanent magnet have opposite magnetism; and an electromagnet is arranged below the second permanent magnet, and the two opposite side faces of the electromagnet and the second permanent magnet have the same magnetism. Thekey structure in the invention can adjust the feedback strength in time to improve the user experience.

Description

technical field [0001] The invention belongs to the technical field of input devices, and relates to a keyboard, in particular to a keyboard key structure. Background technique [0002] A keyboard is an instruction and data input device used to operate equipment. It is one of the most common computer input devices and is widely used in microcomputers and various terminal equipment. English letters, numbers, punctuation marks, etc. can be input into the computer through the keyboard, so as to send commands to the computer, input data, etc. Most of the existing computer keyboards are contact type, capacitive type and inductive type; when the traditional contact type keyboard is operated, the touch feel will be relatively stiff; and some food residues or other tiny foreign particles are easy to enter the keyboard during use. In the gaps, it is difficult to clean, and over time it will cause damage to the internal mechanism of the keyboard, making the tactile sensation of the k...

AI Technical Summary

Problems solved by technology

[0004] The keyboard in the above-mentioned patent document uses a permanent magnet base to suspend the keycap, and the magnetic force between the two permanent magnet bases cannot be adjusted. The closer the distance is, the greater the reaction force is, which affects the user experience, and the feedback force of the control keys is relatively single.

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