keyboard

Abstract

The invention discloses a keyboard which comprises a first key, a second key, a first circuit board, a second circuit board, an upper bottom plate and a lower bottom plate. The first key and the second key are arranged on the upper bottom plate. The lower base plate is slidably arranged below the upper base plate, and a clamping hook is arranged at the position corresponding to the first key. Thefirst circuit board is attached to the lower bottom plate and provided with a first optical receiver and a first optical transmitter which are opposite to each other. The first key forms a first blocking plate towards the first circuit board. When the lower bottom plate slides to the folding position; the clamping hook presses the first key to the folding height, and the first circuit board slidesto the position where the first optical transmitter and the first optical receiver are staggered with the first shielding plate along with the lower bottom plate, so that the first shielding plate does not block the optical path transmission between the first optical transmitter and the first optical receiver when the first key is pressed. By means of the design, under the condition that a user presses the first key with the height of the key cap decreased accidentally, the problem that the user presses the first key by mistake can still be avoided indeed.

Description

Technical field [0001] The present invention relates to a keyboard, in particular to a keyboard with the function of lowering some keys. Background technique [0002] In terms of current personal computer usage habits, the keyboard is one of the indispensable input devices for inputting words, symbols or numbers. Not only that, all consumer electronic products in daily life or large-scale processing equipment used in the industry must have a key structure as an input device to operate the above-mentioned electronic products and processing equipment. [0003] Generally, the traditional keyboard adopts a pressing design in which the assembly structure of the scissor foot support device and the elastic member is arranged between the keycap and the bottom plate, whereby when the keycap is pressed by the user, the elastic member provides elastic restoring force to the keycap for driving The key cap returns to the position before pressing with the action of the mechanism of the scissor ...

AI Technical Summary

Problems solved by technology

However, due to the cross pivot design of the scissors support adopted by the above-mentioned scissors support device, the key needs a large height space, so when the upper cover and the lower case of the notebook computer are folded, in order to avoid being arranged on the lower case The keycap on the body damages the display screen arranged on the upper cover, and there is often a gap between the upper cover and the lower casing to accommodate the keycap, which will limit the appearance and size design of the notebook computer, and is not conducive to the design of the notebook computer. Thin design

Images