Fingerprint module with key function, battery cover assembly and mobile terminal

Abstract

The invention discloses a fingerprint module with a key function, a battery cover assembly and a mobile terminal. The mobile terminal comprises the battery cover assembly; the battery cover assembly comprises a cover plate and the fingerprint module; the fingerprint module comprises a circuit board assembly; a fingerprint chip and a touch switch; the fingerprint chip and the touch switch are arranged at two opposite sides of the circuit board assembly and are arranged oppositely to each other; the fingerprint chip is used for collecting fingerprint information; the touch switch is used for controlling corresponding operations of the mobile terminal; the circuit board assembly is used for realizing electric connection between the fingerprint chip and the touch switch and a circuit main-board of the mobile terminal; the cover plate is provided with a touch region which corresponds to the fingerprint module; the thickness of the touch region is smaller than that of the other positions ofthe cover plate; and the fingerprint chip of the fingerprint module is connected with one side, close to the mobile terminal, of the touch region. Through the way above, dust and moisture can be prevented from entering the fingerprint module of the mobile terminal, and the key function of the fingerprint module can be realized.

Description

technical field [0001] The invention relates to the technical field of mobile terminals, in particular to a fingerprint module with a key function, a battery cover assembly and a mobile terminal. Background technique [0002] Mobile terminals or mobile communication terminals refer to computer equipment that can be used on the move, broadly speaking, it includes mobile phones, notebooks, tablet computers, POS machines and even vehicle-mounted computers. But in most cases, it refers to mobile phones or smart phones and tablet computers with various application functions. With the development of network and technology towards more and more broadband, the mobile communication industry will move towards the real mobile information age. On the other hand, with the rapid development of integrated circuit technology, the processing capability of the mobile terminal already has a powerful processing capability, and the mobile terminal is changing from a simple communication tool to...

AI Technical Summary

Problems solved by technology

[0003] As the hyperboloid cover is widely used in mobile terminals, the functions of the back cover of the mobile terminal are also increasing. Usually, the fingerprint touch function is added to the back cover of the mobile terminal, and the through hole is opened on the back cover of the mobile terminal. , add fingerprint touch function in the through hole, but due to long-term touch and press, the fingerprint module will sink, and the gap between the fingerprint module and the back cover of the mobile terminal is easy to enter dust and water, and the fingerprint on the back cover of the mobile terminal The module can't realize the button function

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