Brushless vibration motor
AssigneeTokyo Parts Industrial Co., Ltd.
InventorKazuo Noguchi
Life of this patent
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Abstract
Disclosed is a brushless vibration motor having a driving circuit therein, which is capable of operating like a typical DC motor. The brushless vibration motor comprises an eccentric rotor R having an eccentric weight 5b, a rotor case 5 and a magnet 6 which has a plurality of magnetic poles arranged in the rotor case; a shaft 2 for supporting the eccentric rotor, a housing H for supporting the shaft, a stator S which is disposed around the shaft on a stator base 1 constructing a part of the housing and which consists of armature coils to drive the rotor, and a driving circuit member 1c which is mounted in a space K corresponding to an area of at least one armature coil.
Claims12
A brushless vibration motor comprising:
- an eccentric rotor having a rotor case,
- a magnet which has plural poles and which is arranged on an inner peripheral surface of the rotor case, and a weight disposed on a portion of an outer peripheral surface of the rotor case;
- a shaft for supporting the eccentric rotor;
- a housing for supporting the shaft, the housing having a stator base and a cover enclosing the rotor;
- a stator for driving the rotor, which is disposed on the stator base to be around the shaft and which has a plurality of armature coils;
- and
- a driving circuit member for applying electric current to the stator, which is disposed at a predetermined portion on the stator base.
Dependencies are inferred from the claim text.