JPS62119147U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
The figures are a front view a and a cross-sectional view b showing the drawer part of the bracket in this example, FIG. 3 is a front view a and a cross-sectional view b of the same lead wire bushing, and FIG. Figures 5 and 6 are a front partial view a and a cross-sectional view b of another example of the housing and bracket of the present invention.
, FIG. 7 is a partial front view a and a cross-sectional view b showing the fitted state of the housing and bracket in this example, FIG. 8 is an enlarged cross-sectional view of the drawer part, and FIG. Front view a and state diagram b showing the molded state of the improved lead wire bushing, No. 10
11 and 11 are a front view a and a cross-sectional view b of the housing and bracket when the shape of the drawer part is square, respectively, and FIG. 12 is a front view a and a cross-sectional view b of the lead wire bushing corresponding to the combination. , Fig. 13 is a sectional view showing an example of a lead wire bushing for preventing breakage of the lead wire at the lead wire extraction part, and Fig. 14 is a cross-sectional view showing an example of a lead wire bushing for preventing breakage of the lead wire at the lead wire extraction part. A cross-sectional view of an example of a lead wire bushing in which a small rib-like protrusion is formed on the inner wall of the hole, FIG. 15 is a cross-sectional view showing an example of a conventional small electric motor, and FIG. 16 is an enlarged view of the lead wire extraction part of the example. The cross-sectional view, FIG. 17, is a cross-sectional view of an example in which a lead wire of the prior art is integrally molded into a bush. Explanation of symbols, 1...Housing, 1-2...Slope,
1-3...Notch groove, 1-4...Bracket fitting part,
2...Bracket, 2-1...Outlet hole, 2-2...Slope, 2-3...Notch groove, 2-4...Housing fitting part, 3...Stator, 3-1...Lead wire, 4...Rotor ,
4-1...shaft, 5...bearing, 6...lead wire bushing,
6-1...Small hole for lead wire penetration, 6-2...Slope, 6
-3...Matching surface, 6-4...Connection part, 6-5...Cylindrical part, 6-6...Small protrusion, 7...Suppressing member, 8...Small screw, 9...Adhesive/filling member.

Claims (1)

[Claims for Utility Model Registration] (1) Consisting of at least a housing, a bracket, a stator built into the housing, and a rotor rotatably supported by the stator through a small gap, the stator winding In a small electric motor that uses a lead wire as a member for supplying power to the wire, an extraction hole formed in a housing or a bracket is formed with a slope such that the diameter of the extraction hole is large on the outside and small on the inside,
The lead wire bushing that fits into the pull-out hole is made of an elastic body, and has a small hole through which the lead wire is inserted, and a slope corresponding to the slope of the pull-out hole on its outer peripheral surface, and both sloped surfaces are pressed together. A small electric motor characterized in that the outer surface of the lead wire bushing is pressed and fixed by a holding member so as to be fixed. (2) A notch groove is formed on the fitting end face of either the housing or the bracket, or both, the notch groove is sloped, and the lead wire bushing is fitted into the extraction hole formed by combining the two. A small electric motor according to claim 1 of the utility model registration claim, characterized in that: (3) The diameter of the small lead wire insertion hole is compressed by the fitting of the lead wire bushing into the pull-out hole and the pressing of the restraining member, and is smaller than the outer diameter of the lead wire in the mounted state. A small electric motor according to claims 1 and 2 of the utility model registration, characterized in that the electric motor is formed so as to press against the outer periphery of a lead wire inserted through the small hole. (4) The lead wire bushing forms a mating surface that exposes a small hole for inserting the lead wire, and is fitted into the lead-out hole while holding the lead wire. A small electric motor according to items 1, 2, and 3. (5) The lead wire bushing is divided into two parts each having a mating surface that exposes a small hole for inserting the lead wire, and the two parts are connected by a deformable connecting part. A small electric motor according to claims 1, 2, and 3 of the utility model registration claims. (6) A small electric motor according to claims 1 to 5 of the utility model registration, characterized in that the shape of the fitting portion of the draw-out hole and the lead wire bushing is non-circular. (7) Utility model registration claims 1 to 6, characterized in that a cylindrical portion protruding from the outer end surface is formed on the outer end side of the lead wire insertion small hole of the lead wire bushing. Small electric motor. (8) A small electric motor according to claims 1 to 7 of the utility model registration, characterized in that a small protrusion is formed in the circumferential direction on the inner wall of the small lead wire insertion hole of the lead wire bushing.