Goertek Inc.

Hairong Wang

Xinfeng Yang

Lianwen Shan

Longhao Cui

The present invention discloses a sound generating apparatus, an electrode device and a method for manufacturing the same. The sound generating apparatus includes a sound generating member, a piezoelectric buzzer and a front cover, wherein the front cover is attached to the front of the sound generating member, and the piezoelectric buzzer is attached to the front cover.

Sound generating apparatus, electric device and method for manufacturing the same

Disclosed are an electrical-acoustic transformation device and an electronic device, including a moving coil electrical-acoustic transformation unit and a piezoelectric buzzer. The electrical-acoustic transformation device in the present invention has a moving coil sound generating structure and a piezoelectric sound generating structure. The piezoelectric plate compensates the high-frequency response of a vibrating system, realizing an electrical-acoustic transformation device with good performance and super wideband.

Electrical-acoustic transformation device and electronic device

Disclosed is an electrical-acoustic transformation device, including: a vibration system and a magnetic circuit system with a magnetic gap; wherein the vibration system includes: a diaphragm, a voice coil provided below the diaphragm and suspending in the magnetic gap, and a piezoelectric plate provided on one side of the diaphragm; and conductive lines are formed on the diaphragm, the conductive lines include a first conductive line connected to the piezoelectric plate to input an externally input first audio signal to the piezoelectric plate via the first conductive line. The electrical-acoustic transformation device in the present invention has a moving coil sound generating structure and a piezoelectric sound generating structure. The piezoelectric plate compensates the high-frequency response of the vibration system, realizing an electrical-acoustic transformation device with good performance and super wideband.

Electrical-acoustic transformation device

Disclosed is an electrical-acoustic transformation device, including: a vibration system and a magnetic circuit system with a magnetic gap; wherein the vibration system includes: a diaphragm, a voice coil provided below the diaphragm and suspending in the magnetic gap, a piezoelectric plate provided on one side of the diaphragm, a first frequency division circuit connected to the voice coil, and a second frequency division circuit connected to the piezoelectric plate; and the first frequency division circuit performs frequency division on an externally input first audio signal and outputs same to the voice coil; and the second frequency division circuit performs frequency division on an externally input second audio signal to obtain a high frequency signal to drive the piezoelectric plate. The present invention provides an electrical-acoustic transformation device with super wideband.

A vibrating diaphragm assembly related to the technical field of electroacoustic products is provided. The vibrating diaphragm assembly comprises a vibrating diaphragm, wherein the vibrating diaphragm comprises a middle part and a folding ring part surrounding the periphery of the middle part. The vibrating diaphragm also comprises a vibrating diaphragm substrate layer and a silica gel layer; the silica gel layer being at least partially combined with the vibrating diaphragm substrate layer. The vibrating diaphragm substrate layer is also a high molecular material layer; the silica gel layer is combined on the surface of the folding ring part; and the silica gel layer and the high molecular material layer are formed through injection molding.

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Weifang, China

Hairong Wang