A fixing device for a pressure touch module

Abstract

The invention discloses a force touch module fixing device, comprising a terminal shell, a force touch module, a clamp groove and buckles. The force touch module is installed in conjunction with a key position of the terminal shell. After being inserted into the clamp groove, the force touch module is fixed in the clamp groove by the buckles, so that the interaction force between the key back side and the terminal mainboard support is zero when an external force is applied on the key position to press the key. The clamp groove is provided in the inner surface of the terminal shell and is used for installation in conjunction with the force touch module and the buckles so as to fix the force touch module. The buckles are used for installation in conjunction with the force touch module and the clamp groove and are used to fix the force touch module in the clamp groove after the force touch module is inserted in the clamp groove.

Description

technical field [0001] The invention relates to fixing technology, in particular to a fixing device for a pressure touch module. Background technique [0002] A traditional key switch (such as a physical key switch of a mobile phone) is mainly composed of three parts: the key cover embedded in the mobile phone shell, the key itself, and the key support structure embedded in the mainboard support structure. After the button cover is under pressure, it produces a displacement pointing to the inside of the phone along the direction perpendicular to the side shell of the phone, and squeezes the contact point of the button. After the key contact point is squeezed, the end metal sheet closes the circuit and connects the switch circuit. After the system detects the electrical signal of the switch circuit, it recognizes that the button is pressed. [0003] Since the only force point required by the button itself is the contact point between the button cover and the button, the swi...

AI Technical Summary

Problems solved by technology

If the interaction force occurs, when the specific area corresponding to the key part of the mobile phone shell is under pressure, the relevant electrical signal in the pressure touch module circuit will be changed due to deformation. This electrical signal will be processed by a special signal processing IC circuit. The different button operations finally identified after processing with the algorithm will be inaccurately identified, which will lead to functional problems in the new type of button switch

[0007] It can be seen that if the new type of key switch is still fixed in the same way as the traditional key switch, since the interaction force between the back of the key and the support of the main board of the mobile phone cannot be avoided when the key is pressed, it will affect the feeling. The normal work of the lamination film, which leads to functional problems of the new type of key switch

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