Patent ID: 11968507
Assignee: AAC KAITAI TECHNOLOGIES (WUHAN) CO., LTD
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A speaker comprising:
a base with an accommodation cavity;
a vibration sounding assembly accommodated in the accommodation cavity, comprising a first diaphragm and a second diaphragm, and a driver fixed to the first diaphragm for driving the first diaphragm and the second diaphragm to vibrate and produce sound; wherein
the second diaphragm stacks on the first diaphragm, and a stiffness of the second diaphragm is different from a stiffness of the first diaphragm, the first diaphragm is close to the accommodation cavity, the first diaphragm includes a through hole along a thickness direction thereof, the driver spaced apart from the second diaphragm penetrates the through hole, and the through hole is communicating with the accommodation cavity, a projection of the second diaphragm and the driver on the first diaphragm do not overlap.