Centering disk and loudspeaker with same

The utility model discloses a centring disk, including the first fixed part that lies in the outside, second fixed part and the connection that lies in the middle part position the linking arm of first fixed part and second fixed part, the centring disk includes the insulating substrate layer and is used for the conducting layer that the electrical property switched on, the linking arm with the width on the insulating substrate layer of first fixed part junction is greater than this position department the width of conducting layer, and this the conducting layer is close to the outside on insulating substrate layer sets up. When linking arm elastic deformation, stress concentration in the inboard of this junction, because of the width on this insulating substrate layer of locating is greater than the width of conducting layer, and the conducting layer is close to the insulating substrate layer outside and sets up, on stress only concentrates on inboard insulating substrate layer, and can not exert an influenc