| 摘要 |
A micro-speaker is disclosed. The micro-speaker includes a frame, a magnetic circuit received in the frame, a voice coil partially received in the magnetic circuit, a diaphragm connected to the voice coil, and a contact fixed by the frame for electrically connecting the voice coil to an external circuit. The contact includes a base plate, a first and second connecting plates respectively connected to both ends of the base plate and formed an engaging space by connecting them in order. Corresponding to the contact, the frame includes a sidewall and a protrusion formed on the sidewall. The engaging space receives and engages with the sidewall and the second plating plate engages with the protrusion for mounting the contact on the frame firmly without soldering. |
| 主权项 |
1. A micro-speaker, comprising:
a frame providing a receiving space and including a sidewall at a periphery of the frame and a protrusion formed on the sidewall; a magnetic circuit unit including a magnetic gap and accommodated in the receiving space; a voice coil partially received in the magnetic gap; a diaphragm activated by the voice coil for generating sounds and mounted on the frame; a plurality of contacts fixed by the frame for electrically connecting to the voice coil, each of the contacts comprising a base plate, a first connecting plate extending upward from one end of the base plate, a second connecting plate extending upward from another end of the base plate and engaging with the protrusion, an elastic arm extending from a side of the base plate between two ends of the base plate, and a contacting tip extending from a distal end of the elastic arm; the first connecting plate, the base plate and the second connecting plate connoted in order for forming an engaging space for receiving the sidewall; wherein each of the contacts further comprises a soldering pad located in the engaging space and connected to the first connecting plate for electrically connecting to the voice coil. |
