Vibration motor damping member with groove

A vibration motor comprising:

• a housing with a receiving space;
• a vibration unit received in the receiving space, comprising:
• a weight;
• a magnet fixed to the weight;
• and
• an elastic member configured to suspend the weight in the receiving space, comprising:
• a first fixation portion fixed to the housing;
• a second fixation portion fixed to the weight;
• and
• an elastic portion connecting the first fixation portion and the second fixation portion, spaced apart from the weight;
• a stator unit received in the receiving space, comprising a coil facing the magnet;
• and
• a damping member sandwiched between the elastic portion and the weight, having a groove penetrating thereon, comprising:
• a first damping portion connecting with the elastic portion;
• and
• a second damping portion connecting with the weight;
• wherein the first damping portion and the second damping portion are separately arranged on two opposite sides of the groove along a vibration direction of the vibration unit;
• the damping member further comprises a first side surface and a second side surface spaced apart from the first side surface along a first direction perpendicular with the vibration direction;
• the groove dents from the first side surface towards the second side surface;
• the groove is spaced apart from the second side surface;
• the groove extends along the first direction;
• the groove penetrates the damping member along a second direction perpendicular with the vibration direction and the first direction;
• a width of the first side surface along the vibration direction is larger than a width of the second side surface along the vibration direction.