JPS61126773U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing the main parts of an embodiment according to this invention, FIG. 2 is an assembled perspective view, FIGS.
Figures A to D show examples of the bracket of this invention, respectively: a front view, a side view, a sectional view taken along EE of the side view,
An enlarged view of the board fixing part, FIGS. 5A and 5B are views showing the main parts of another embodiment, an exploded view and an assembled view, respectively, FIG. Figure 8 is a diagram showing a part of the bracket and frame, Figure 9 is a diagram explaining the circuit of a small DC motor, and Figure 10 is a diagram showing the conventional method of attaching a ground terminal. It is. 1: Frame, 2: Stator, 3: Rotor, 4
: Core, 5: Copper winding, 6: Core core, 8: Rotor shaft, 9: Bracket, 10: Insertion sleeve, 11
, 12: Fitting piece, 13: Fixing recess, 14, 15
: Concave notch, 16: Engagement piece, 17: Bearing holding part, 1
8, 19: Bearing, 20: Brush, 21: Holding means, 22: Lead wire terminal, 23: Commutator, 24: Commutator, 25: Winding connection part, 26: DC power supply, 27: Earth terminal, 28: Capacitor ,2
9: Anode, 30: Cathode, 31: Power supply line, 32: Earth terminal, 33: Terminal body, 34: Contact part, 35
: central fixing part, 36: printed circuit board, 37: outer end surface,
38, 39: conductive layer, 40: mounting hole, 41: boss, 42, 43: recessed part, 44: circular hole, 45: earth terminal fixing boss, 46: circular hole, 47: quadrilateral hole, 48: Small circular hole, 49: Gourd-shaped hole, 50
: Rim, 51: Mounting recess, 52: Concave groove, 53: Small protrusion.

Claims (1)

[Scope of utility model registration request] A stator is attached to the inner peripheral surface of a metal cylindrical frame, a rotor is rotatably disposed within the frame facing the stator, and an insulating bracket is attached to the frame so as to close one end surface of the frame. In a small DC motor, a bearing, a brush, and a lead wire terminal for bearing one end of the rotor shaft are attached to the bracket, and the brush is in sliding contact with the commuter attached to the rotor shaft. One end of the ground terminal is a terminal body that protrudes outward from the outer end surface of the bracket, and the other end of the ground terminal is a contact portion that extends toward the outer peripheral surface of the bracket. A small DC motor, characterized in that the motor is located in elastic contact with the inner surface of the frame.