A multifunctional device with vibration function and sound generation function

Abstract

The invention discloses a multifunctional device having a vibration function and a sound producing function. The multifunctional device comprises a peripheral shell, a vibration system, a magnetic circuit system and an elastic support piece, the magnetic circuit system is supported and fixed through the elastic support piece and is suspended inside the peripheral shell, the vibration system comprises a vibrating diaphragm and a voice coil, the peripheral shell is of metal material, an inner side of the peripheral shell is fixedly provided with a conduction piece, a lead of the voice coil is electrically connected with the conduction piece, the conduction piece is electrically connected with an electrical connecting piece extending to an outer side of the peripheral shell, the electrical connecting piece is conducted with an external circuit, an edge position of the peripheral shell is provided with an injection molding piece of a plastic material which is formed through integral injection molding, the electrical connecting piece is fixed through the injection molding piece, and the injection molding piece does not exceed lateral space of the peripheral shell in a horizontal direction. The multifunctional device provided by the invention can solve in a target manner the problem that adoption of a shell of a metal material easily causes static breakdown, guarantees realization of conduction of internal and external circuits, saves occupied assembling space inside the shell, and improves product performance.

Description

technical field [0001] The invention relates to the field of electroacoustics, in particular to a multifunctional device with vibration function and sound generation function. Background technique [0002] Existing mobile terminal electronic devices, taking mobile phones as examples, not only need to be equipped with loudspeaker units that can produce sound, but also need to be equipped with vibration motors to provide vibration feedback to users in order to realize incoming calls, information, etc. Instant tips. However, since the current electronic products are becoming more and more lightweight and thin, if the vibration unit and the sound unit are assembled on the terminal products such as mobile phones with relatively small assembly space, it will undoubtedly take up a large space; To solve this problem, people design a multi-functional acoustic element to satisfy the two functions of vibration and sound at the same time, so as to reduce the space occupied by the acous...

AI Technical Summary

Problems solved by technology

In the prior art, the peripheral casing of the device is mostly made of plastic injection molded parts. At this time, its electrical connection structure can still adopt the traditional injection-molded welding shrapnel and other structures. However, in some cases, metal materials are used as the peripheral casing. In the product, if the traditional electrical connection method is used to lead the voice coil lead out and conduct it through spot welding, the thinner insulating layer around the voice coil lead used to cover the inner metal wire is relatively easy to be crushed. Sometimes it will lead to short circuit of the circuit, resulting in electrostatic breakdown, so it is impossible to continue to use injection-molded welding shrapnel to complete the conduction between the vibration and sound generating device and the end product circuit

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