A speaker includes a magnetic circuit defining a magnetic gap, a diaphragm defining a central part and peripheral part surrounded the central part of the diaphragm, a coil defining an end suspended in the magnetic gap, an elastic plate defining a central flat coupled to the central part of the diaphragm and a side coupled to another end of the coil. And the side of the elastic plate comprises a first part extending perpendicularly from the central flat toward the peripheral part of the diaphragm and a second part extending parallel to the central flat for coupling another end of the coil.
1. A speaker, comprising:
a magnetic circuit defining a magnetic gap; a diaphragm defining a central part and peripheral part surrounded the central part of the diaphragm; a coil defining an end suspended in the magnetic gap; an elastic plate; wherein, the elastic plate comprises a central flat coupled to the central part of the diaphragm and a side coupled to another end of the coil, and the side of the elastic plate comprises a first part extending perpendicularly from the central flat toward the peripheral part of the diaphragm and a second part extending parallel to the central flat for coupling another end of the coil; and
wherein another end of the coil coupled to the side of the elastic plate is higher than the central flat of the elastic plate.
2. The speaker as described in claim 1 , wherein an inner diameter of the coil is equal to an outer diameter of the central flat of the elastic plate.
3. The speaker as described in claim 1 , wherein an inner diameter of the coil is greater than an outer diameter of the central flat of the elastic plate.
4. The speaker as described in claim 1 , wherein a gap is formed between the coil and the first part of the side of the elastic plate.