Manufacturing method of button assembly

Abstract

The invention discloses a manufacturing method for a key assembly. The manufacturing method for the key assembly comprises the steps that a shell with a key hole is manufactured; a key is manufactured, wherein the lower end of the key is provided with a conductive base portion which extends downwards, and the lower end of the key is provided with a skirt edge; the key is assembled in the key hole, and the skirt edge is supported by the lower surface of the shell; a pot-shaped part is installed on a circuit board; the circuit board is connected with the shell, the pot-shaped part is opposite to the lower end of the conductive base portion, and then the shell, the key and the circuit board are inverted, so that the lower end of the conductive base portion makes contact with the upper surface of the pot-shaped part, wherein the distance between the lower surface of the shell and the upper surface of the circuit board is X1a1b1, the distance between the highest point of the pot-shaped part and the upper surface of the circuit board is X2a2ba, the distance between the upper surface of the skirt edge and the lower end face of the conductive base portion is X3a3b3, 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 lower deviation a3 of the X3. According to the manufacturing method for the key assembly, the key is stable, and the pressing effect and the use effect are good.

Description

technical field [0001] The invention relates to a method for manufacturing a 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 the keys, thereby c...

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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