Small-sized motor having a brush unit with an improved brush arm and terminal connections

A small-size motor having a case of a bottomed hollow cylindrical shape, fitted with a magnet on the inner peripheral surface thereof, a case cover mounted so as to close an opening of said case and fitted with brush units, and a rotor fitted with a laminated core, windings wound on said laminated core, and a commutator on a shaft, said motor comprising:

• each of said brush units including a brush being into slidable contact with said commutator, a substantially straight brush arm for holding said brush, and a brush base connected to said brush arm;
• said brush base being formed with a base hole in the center thereof, and a male terminal for electrical connection from the outside being provided at one end of said brush base;
• and
• said case cover being formed with openings for projecting said male terminals,
• wherein each of said brush units is installed to said case cover at two locations of a fixing portion in which said brush arm is fixed to said brush base, and a brush base end portion.

A motor comprising:

• a case;
• a case cover connected to said case;
• a rotor rotatably mounted in said case and said case cover, said rotor including a commutator;
• a brush unit mounted on said case cover, said brush unit including a brush movable between first and second positions, said first position arranging said brush into contact with said commutator, said brush unit including a brush base connected to said brush, said brush unit including a receptacle terminal having one end connected to said brush base, said receptacle terminal angularly extending away from said brush base, said receptacle terminal forming an electrical connector of the motor, said case cover defining a terminal insertion hole in alignment with said receptacle terminal for passing an outside electrical conductor through said terminal insertion hole and into contact with said receptacle terminal, said brush base defining a base hole, said brush being arranged inside said base hole in said second position of said brush.