JPH10155253A - Small motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep a lead wire for a power feeding terminal simply fixed until soldering and to perform soldering work simply by forming bifurcated part so as to hold the lead wire at the tip part of the power feeding terminal. SOLUTION: When a lead wire 14 is connected to a power feeding terminal 4, at first, the lead wire 14 is inserted into bifurcated part 16 of the power feeding terminal 4, which is assembled to a compact motor and is protruding from the side surface of a motor cover 2. Thereafter, soldering is performed, and the lead wire is fixed by the soldering. As the work for attaching the lead wire 14 to the power feeding terminal 4, at first, the lead wire 14 is only inserted from the upper side of the bifurcated part 16. The work can be performed very simply. Furthermore, the lead wire 14 once inserted is held by a hook 17 for preventing the disengagement of the lead wire 14 formed in the inner surface. Thus, the lead wire 14 is not disengaged and securely fixed. This fixing becomes the temporary fixing until soldering. Thereafter, the lead wire 14 is fixed by solder by the soldering work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small motor, and more particularly, to a small motor capable of easily connecting a lead wire connected to a power supply terminal of the small motor.

[0002]

2. Description of the Related Art A conventional small motor is shown in FIG. A cover 102 for closing the open end is fitted and fixed to the open end of the bottomed cylindrical case 101. Bearings 111 and 112 are fixed to the bottom 110 of the bottomed cylindrical case 101 and the center of the cover 102. A core around which the coil 103 is wound and the commutator 105 are fixed to the shaft 109 to form a rotor 113. This rotor 113
Are rotatably supported by bearings 111 and 112. The magnet 107 is fixed to the inner peripheral surface of the bottomed cylindrical case 101.

The brush 106 is fixed to the power supply terminal 104 by a caulking portion P, and the power supply terminal 104 is press-fitted and fixed to a hole of a resin portion 108 fixed to the cover 102, and the brush 106 is fixed to the commutator 105. It is designed to be in sliding contact. Lead wire 11 for this power supply terminal 104
4 is connected to the lead wire 11 in the hole 115 of the power supply terminal 104.
4 and soldering.

[0004]

However, the lead wire 11 for the power supply terminal 104 of the above-described conventional small motor is not used.
The connection work of No. 4 needs to be passed through the hole 115 of the lead wire 115. This insertion work of the lead wire 114 is a simple operation because the hole 115 is small, but is a troublesome and troublesome operation. Further, since the lead wire 114 is not securely fixed until it is soldered after the lead wire 114 is inserted, there is a problem that the soldering is troublesome. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and provides a power supply terminal that can easily fix a lead wire to the power supply terminal, and can temporarily fix the lead wire until soldering and can easily perform a soldering operation. With the goal.

[0005]

According to the first aspect of the present invention, there is provided a small-sized motor according to the present invention, wherein a rotor is provided in a bottomed cylindrical case having an open end closed by a side cover. A small-sized motor rotatably supported by a bearing and having a power supply terminal fixed to the side cover, wherein a forked portion is formed at a tip end of the power supply terminal so that a lead wire can be held therebetween. .

According to the first aspect of the present invention, the operation of fixing the lead wire to the power supply terminal may be performed simply by inserting the lead wire into the forked portion of the power supply terminal, which is extremely different from the conventional operation of passing through the hole. The lead wire can be easily fixed, and the efficiency of the soldering operation can be improved.

According to a second aspect of the present invention, a hook for preventing a lead wire from coming off is formed in a forked portion formed in the power supply terminal.

According to the second aspect of the present invention, since the hook for hooking the lead wire is formed inside the forked portion,
It can be temporarily fixed simply by hooking the lead wire to the power supply terminal, and the subsequent soldering work can be simplified.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a small motor according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows an embodiment of the present invention. A cover 2 that closes the open end is fitted and fixed to the open end of the bottomed cylindrical case 1. Bearings 11 and 12 are fixed to the bottom 10 of the bottomed cylindrical case 1 and the center of the cover 2. The core around which the coil 3 is wound and the commutator 5 are fixed to the shaft 9, and the rotor 1
3. The rotor 13 is rotatably supported by bearings 11 and 12. The magnet 7 is fixed to the inner peripheral surface of the bottomed cylindrical case 1. The brush 6 is fixed to the power supply terminal 4 in advance by a caulking portion P. The power supply terminal 4 is press-fitted and fixed in a hole of the resin portion 8 fixed to the cover 2, and the brush 6 slides on the commutator 5. To be mounted.

The power supply terminal 4 is formed of a flat metal plate.
A forked bifurcated portion 16 is formed in a V-shape from the tip. Several hooks 17 are formed on the inner surface of the forked portion 16. These are formed by pressing.

When the lead wire 14 is connected to the power supply terminal 4, the lead wire 14 is inserted into a forked portion 16 of the power supply terminal 4 which is assembled to a small motor and protrudes from the side surface of the cover 2 of the motor. And fix it by soldering.

The work of attaching the lead wire 14 to the power supply terminal 4 can be performed simply by first inserting the lead wire 14 from above the forked portion 16, and the intention can be easily achieved. Also, the lead wire 14 that has been inserted all the way is securely held without being pulled out by a hook 17 for preventing the lead wire 14 formed on the inner surface from coming off. This is a temporary fixing until soldering, and after that, it is fixed by soldering.

[0013]

According to the first aspect of the present invention, the operation of fixing the lead wire to the power supply terminal may be performed simply by inserting the lead wire into the forked portion of the power supply terminal, which is different from the conventional operation of passing through the hole. And can be done very easily.

According to the second aspect of the present invention, since the hook for hooking the lead wire is formed inside the forked portion,
It can be temporarily fixed simply by hooking the lead wire to the power supply terminal, and the subsequent soldering work can be simplified.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view of a small motor according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional side view of a small motor as an example of the related art.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 bottomed cylindrical case 2 cover 3 coil 4 power supply terminal 6 brush 9 shaft 13 rotor 14 lead wire 16 forked part 17 hook

Claims (2)

[Claims] A rotor rotatably supported by a bearing in a cylindrical case having a bottom whose opening end is closed by a side cover;
A small motor in which a power supply terminal is fixed to the side cover, wherein a forked portion is formed at a leading end of the power supply terminal so as to hold a lead wire. 2. The small-sized motor according to claim 1, wherein a hook for preventing a lead wire from coming off is formed in a forked portion formed in the power supply terminal.