Linear vibration motor

A linear vibration motor, comprising:

• a base having accommodating space;
• a vibrating unit;
• and
• an elastic member fixing and suspending the vibrating unit in the accommodating space;
• wherein the vibrating unit comprises a first side wall and a second side wall oppositely arranged along a direction intersecting with a vibrating direction of the vibrating unit, the elastic member comprises a first elastic member and a second elastic member spaced from each other and arranged by stacking,
• wherein the first elastic member comprises a first fixing arm fixed on the first side wall, two first elastic arms respectively bending and extending from two ends of the first fixing arm and surrounding the vibrating unit, and two first connecting arms respectively bending and extending from ends of the two first elastic arms and surrounding the vibrating unit, the two first connecting arms are respectively fixed at a side of the base close to the second side wall;
• the second elastic member comprises a second fixing arm fixed on the second side wall and located between the second side wall and the first connecting arm, two second elastic arms respectively bending and extending from two ends of the second fixing arm and surrounding the vibrating unit, and two second connecting arms respectively bending and extending from ends of the two second elastic arms and surrounding the vibrating unit, wherein the two connecting arms are respectively fixed at a side of the base close to the first side wall, and the first fixing arm is located between the first side wall and the second connecting arm;
• the linear vibration motor further comprises:
• a first stopper, and
• at least two second stoppers,
• wherein the first stopper is fixed at a side of the first fixing arm far away from the vibrating unit and/or a side of the second fixing arm far away from the vibrating unit;
• at least two second stoppers are respectively fixed on the first connecting arm and/or the second connecting arm adjacent to the first stopper, and are located at two opposite sides of the first stopper in a direction intersecting with the vibrating direction of the vibrating unit;
• for the first stopper and the second stopper located at the same side of the vibrating unit, the first stopper and the second stopper are spaced from each other and an orthographic projection of the first stopper along the vibrating direction at least partially falls into the second stopper, a distance between the first stopper and the adjacent second stopper is not larger than the an effective elastic displacement of the elastic member.