Patent ID: 8058759

Claim:
An inner-rotor-type motor comprising: a housing including an assembly space and an assembly opening communicating with the bottom of the assembly space; a stator received in the assembly space; a rotor rotatably positioned in the housing via a bearing; a bearing seat including a socket and coupled to the assembly opening of the assembly space, with the socket including an upper wall and a circumferential side wall, with the circumferential side wall including an inner surface, an outer surface opposite to the inner surface and a free edge opposite to the upper wall, wherein a first recess with an opening formed at an end of the socket is defined by the upper wall of the socket, a second recess with another opening formed at another end of the socket is defined by the said upper wall and the inner surface of the circumferential side wall of the socket, and a stopper is at least a part of the upper wall of the socket and arranged between the first recess and the second recess; a base coupled to the opening of the second recess, wherein the base has a plurality of pressing portions flexibly formed in a center of the base; a circuit board electronically connected to the stator, with the plurality of pressing portions supporting the circuit board in the second recess; at least one slit extending axially from the free edge through the upper wall and extending radially between the inner and outer surface of the circumferential side wall, with the slit communicating with the second recess; and at least one coupling portion formed at a closed end of the at least one slit and extending axially through the upper wall and communicating with the second recess, with the at least one coupling portion extending in a non-radial extending direction from a radial extending direction of the slit to define a non-parallel angle therebetween.