Key assembly and electronic equipment with it

Abstract

The invention discloses a key assembly and an electronic device with the key assembly. The key assembly comprises a circuit board, a shell, a pot-shaped part and a key. The shell is arranged above the circuit board and is separated from the circuit board, a key hole is formed in the shell, and the distance between the lower surface of the shell and the upper surface of the circuit board is X1a1b1; the pot-shaped part is arranged on the circuit board, and the distance between the highest point of the pot-shaped part and the upper surface of the circuit board is X2a2ba; the key is arranged in the key hole, a conductive base portion which extends downwards is arranged at the lower end of the key, the lower end of the conductive base portion makes contact with the upper surface of the pot-shaped part, the lower end of the key is provided with a hemline which extends to the position below the lower surface of the shell, and the distance between the upper surface of the hemline and the lower end face of the conductive base portion is X3a3b3, wherein the X1, the X2 and the X3 meet the equation that X1=X2+X3, and the lower deviation b1 of the X1 is larger than or equal to the sum of the upper deviation a2 of the X2 and the upper deviation a3 of the X3. According to the key assembly, the gap between the upper surface of the hemline and the lower surface of the shell is small, the key is stable, and the pressing effect and the use effect are good.

Description

technical field [0001] The invention relates to a key assembly and electronic equipment with the key assembly. Background technique [0002] Key components are commonly used components in electronic equipment such as smart key devices. In the related art, after the key components are assembled, in order to prevent the keys from squeezing the dome on the circuit board, it is necessary to leave a relatively large gap between the key and the housing. A large gap will cause the keys to loosen and the use effect will be poor. Contents of the invention [0003] The present application is made based on the inventors' discovery of the following facts and problems. [0004] After the key assembly is assembled, the lower end of the key is usually in contact with the top surface of the dome and cannot exert pressure on the dome. Therefore, a large gap needs to be left between the key and the housing, otherwise it may cause a gap between the key and the housing. interference between...

AI Technical Summary

Problems solved by technology

[0002] Key components are commonly used components in electronic devices such as smart key devices. In the related art, after the key components are assembled, in order to prevent the keys from squeezing the dome on the circuit board, it is necessary to leave a relatively large gap between the key and the housing. Large gaps, resulting in loose keys and poor use effect

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