JP3203100U - motor - Google Patents

Abstract

Provided is a motor that is difficult to be disconnected at a connecting portion with solder even when a large force is applied to a coated conductor. The coated conductor 2 is folded back to the opposite side of the housing 11 in the vicinity of the solder connection portion, wired from the side peripheral surface 12c of the end cap 12 along a part of the end surface 12d, and at least the end A portion along the side peripheral surface 12 c of the cap and a portion along the end surface 12 d of the end cap 12 are mounted on the motor body 1 and are sandwiched by the covered conductor position regulation member 3 having the sandwiching portions 31 and 32. [Selection] Figure 2

Description

  The present invention relates to a small DC motor used for, for example, electric teaching materials and models.

As a small DC motor (hereinafter referred to only as “motor”) used for electric teaching materials and models, a motor X as shown in FIG. 14 has already been put on the market.
That is, as shown in FIG. 15, the motor X includes a motor body 100, two coated conductors 200, and a coated conductor width regulating member 300.

As shown in FIG. 16, the motor main body 100 includes a housing 110, an end cap 120, and a rotor 130 including a rotation shaft 131.
The housing 110 has a bottomed cylindrical shape made of a metal material, and the rotation shaft 131 of the rotor 130 is rotatably supported through the center of the cylinder bottom, although not shown.

The end cap 120 is made of a synthetic resin, and closes the opening of the housing 110, and includes a bearing portion 121 that rotatably supports the other end of the rotating shaft 131 at the center.
The end cap 120 is provided so that the two terminals 122 are exposed to the outside.

The coated conductor 200 is connected and fixed to the terminal 122 via the solder 400 in a state in which the conductor 210 exposed by peeling off the coating is disposed so that the tip thereof faces the anti-housing 110 side, that is, the end cap 120 side. Has been.
That is, when connecting and fixing with the solder 400 as described above, the leading end of the conducting wire 210 does not face the housing 110 side, so that the conducting wire 210 does not contact the housing 110 and short-circuit.

The covered conductive wire width regulating member 300 is configured so that the member main body 320 is covered in the vicinity of the solder connection portion by engaging a locking portion 310 having a locking claw at the tip with an engagement hole 111 provided in the housing 110. The position of the conductor 200 is restricted so as not to move in the width direction and in the direction away from the wall surface of the housing 110.
In other words, when the motor X performs an operation of connecting the other end of the coated conductor 200 to another electrical device such as a battery box by the coated conductor width regulating member 300, the solder connection portion has a force in the bending direction of the conductor. In addition, accidents that lead wires are cut are prevented.

However, in the motor X, the member main body 320 prevents the force in the bending direction from being applied to the connection portion of the solder 400 and the conductive wire 210 and the vicinity thereof. Since it does not have an attachment force, it is not possible to sufficiently prevent the conductor 210 from being pulled out of the solder 400 or disconnected at the base of the solder 400 when a force that pulls the conductor 210 is applied.
That is, the motor X is often used as an electric teaching material for elementary school students. However, elementary school students take unexpected actions such as swinging the motor main body 100 with the coated conductor 200, and as described above, There is a possibility that a large force is applied to the conductive wire 300.

  In view of the above circumstances, an object of the present invention is to provide a motor that is difficult to be disconnected at a connecting portion with solder even when a large force is applied to the coated conductor.

  In order to achieve the above object, the motor according to the present invention (hereinafter referred to as “the motor of the present invention”) has a bottomed cylindrical shape in which one bearing portion supporting the rotating shaft of the rotor is provided at the bottom. A synthetic resin end cap that is provided so that the two terminals are exposed to the outside and the other bearing portion that supports the rotating shaft of the rotor is provided to close the opening of the housing. A motor body, and a motor having two coated conductors each connected to a pair of terminals provided on the end cap by solder, and is supported and fixed to the motor body, and the coated conductor is attached to the end cap. The present invention is characterized in that a covered conducting wire regulating member for regulating the position along the side peripheral surface and the end face of the end cap is provided.

The tip of the solder connection portion of the coated conductor may face the housing direction or the anti-housing direction.
When the tip of the solder connection part of the coated conductor is facing the anti-housing direction, the coated conductor is folded back to the anti-housing side in the vicinity of the solder connection part, and from the side peripheral surface of the end cap to a part of the end surface. Made to conform.

In the motor of the present invention, for example, the coated conductor position regulating member has a locking portion, and the motor main body supports the coated conductor regulating member in the coated conductor position regulated state by locking the locking portion. A structure having an engagement hole or an engagement recess, or a first clamping part that clamps a part along the side surface of the end cap, and a second clamping that clamps a part along the end face of the end cap It is good also as a structure provided with the part.
Moreover, in the structure provided with the said 2nd clamping part, a 2nd pair of 2nd clamping parts are provided, and these 2nd clamping parts engage with a covering conductor at the edge, and between covering conductors It is preferable to have a configuration that includes a notch for maintaining the interval.

  Further, the covered conductor position regulation member is provided to face the first sandwiching portion, the first sandwiching portion, and the motor body sandwiching portion sandwiching the motor body between the first sandwiching portion, the first sandwiching portion, A structure having a frame-shaped connecting portion for connecting one clamping portion and a motor body clamping portion, and a pair of second clamping portions provided so as to extend from both side frames of the coupling portion, a motor The main body holding portion may be provided with a second locking portion, and the motor main body may be provided with a second engagement hole or an engagement concave portion that engages with the second locking portion. .

As described above, in the motor of the present invention, a metal housing having a bottomed cylindrical shape in which one bearing portion supporting the rotating shaft of the rotor is provided at the bottom, and two terminals are exposed to the outside. And a motor main body having a synthetic resin end cap that closes the opening of the housing, and a pair of terminals provided on the end cap. A motor comprising two coated conductors connected by solder, each of which is supported and fixed to the motor body and positions the coated conductor along the side surface of the end cap and the end surface of the end cap. Since the conducting wire regulating member is provided, the coated conducting wire is difficult to be disconnected at the solder connection portion.
In other words, the coated conductor sandwiching portion keeps the vicinity of the solder connecting portion of the coated conductor bent along the peripheral wall surface of the housing and the end surface of the end cap disposed so as to intersect the peripheral wall surface. Since the movement of the coated conductor in the solder connecting portion in the direction away from the wall surface of the motor body first acts on the edge of the coated conductor sandwiching portion along the end cap of the end cap, the force is weakened. Therefore, the force applied in the vicinity of the solder connection portion is suppressed, and disconnection is prevented.

It is a top view showing 1st Embodiment of the motor of this invention. It is a perspective view of the motor of FIG. It is a side view of the motor of FIG. It is the perspective view which looked at the motor main body of the motor of FIG. 1 from diagonally upward. FIG. 2 is a perspective view of a motor body of the motor of FIG. It is a perspective view of the covering conducting wire position control member of the motor of FIG. It is a front view of the covering conducting wire position control member of FIG. It is a rear view of the covering conducting wire position control member of FIG. It is a top view of the covering conducting wire position control member of FIG. It is a bottom view of the covering conducting wire position control member of FIG. FIG. 7 is a right side view of the coated conductor position restriction member of FIG. 6. FIG. 7 is a left side view of the coated conductor position restriction member of FIG. 6. It is a figure explaining the assembly process of the motor of FIG. It is a side view showing 2nd Embodiment of the motor of this invention. It is a perspective view of the conventional motor. It is a perspective view of the state which removed the covering conducting wire width regulation member of the motor of FIG.

Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments thereof.
1 to 3 show a first embodiment of the motor of the present invention.

As shown in FIGS. 1 to 3, the motor A includes a motor body 1, a covered conductor 2, and a covered conductor position regulating member 3.
As shown in FIGS. 4 and 5, the motor body 1 includes a housing 11, an end cap 12 made of synthetic resin, and a rotor 13.

The housing 11 is formed in a bottomed cylindrical shape with a metal material such as aluminum, aluminum alloy, galvanized steel, and stainless steel. As shown in FIG. 5, one end of the rotating shaft 13a of the rotor 13 is attached to the bottom 11f. The bearing part 11g to receive is provided.
The housing 11 has two flat surfaces 11a and 11b having cylindrical peripheral walls provided in parallel, and a curved surface 11c connecting the flat surfaces 11a to the flat surfaces 11a. A joint hole 11d is formed, and one second engagement hole 11e is formed in the other flat surface 11b.

The end cap 12 is formed of, for example, a thermosetting resin such as an epoxy resin, a phenol resin, or an unsaturated polyester resin, and includes a bearing portion 12 a that receives the other end of the rotating shaft 13 a of the rotor 13. It is attached to the housing 11 so as to close one end opening.
Further, as shown in FIG. 4, the end cap 12 is provided so that a pair of terminals 12b, 12b connected to a brush or the like (not shown) protrudes to the outside.

The covered conductor 2 is made of a conductor such as copper, aluminum, stainless steel, etc., coated with vinyl chloride resin, and the conductor 21 exposed at one end is in a state where its tip is directed to the anti-housing 11 side, that is, the tip of the conductor 21 Is fixed to the terminal 12b with the solder 4 so as not to contact the housing 11.
Further, as shown in FIG. 3, the coated conductor 2 is turned into the state opposite to the housing 11 side, that is, the end cap 12 side in the vicinity of the connecting portion of the solder 4 by a coated conductor position regulating member 3 described later. The end cap 12 is held in a bent state along the end surface 12d at the corner between the side peripheral surface 12c and the end surface 12d.

The coated conducting wire position regulating member 3 is formed of a thermoplastic resin such as vinyl chloride resin, polyethylene resin, polypropylene resin, ABS resin, etc. As shown in FIGS. 6 to 11, the first sandwiching portion 31 and the motor A main body holding part 32 and a connecting part 33 are provided.
The first clamping part 31 is provided such that a pair of first locking parts 31a protrude toward the motor body clamping part 32 side.

The first locking portion 31a is provided with a locking claw at the tip, and the locking claw engages with the first engagement hole 11d, as will be described later, so that the locking claw engages with the peripheral edge of the first engagement hole 11d. As long as a large force is not applied, the retaining state can be secured.
The motor body sandwiching portion 32 is provided so as to face the first sandwiching portion 31, and a second locking portion 32 a is projected toward the first sandwiching portion 31.

The connecting portion 33 has a frame shape in which a bearing portion 12b provided at the center so as to protrude from the end face of the end cap 12 is fitted.
Then, a pair of second sandwiching portions 34 is provided on the connecting portion 33 so as to protrude toward the inside of the frame at positions where the frame faces each other.

The second clamping part 34 is provided with a substantially C-shaped notch 35 that opens toward the motor body clamping part 32 side.
Then, the portion of the coated conducting wire 2 that is inverted from the connection portion with the solder 4 is formed on the flat surface 11a of the housing 11 that forms the peripheral wall of the first sandwiching portion 31 and the motor body 1 and the side peripheral wall 12c of the end cap 12. And the portion along the end surface 12d of the end cap 12 is held in a state of being sandwiched between the end cap 12 and the second sandwiching portion 34, and the second sandwiching portion 34 is retained. The movement in the width direction is restricted by fitting in the notch 35.

Further, the motor A is not particularly limited, but is assembled as follows, for example.
That is, as shown in FIG. 13, each coated conductor 2 is folded back to the opposite side of the housing 11 in the vicinity of the connection portion with the solder 4, and the first latching is performed with the coated conductor 2 inserted into the frame of the connecting portion 33. The portion 31a is made to face the first engagement hole 11d.

Thereafter, the motor body clamping portion 32 faces the flat surface 11b while the portion along the flat surface 11a of the housing 11 and the side peripheral wall 12c of the end cap 12 is sandwiched by the first clamping portion 31, and the second locking Until the portion 32a is engaged with the second engagement hole 11e, the motor main body holding portion 32 is rotated around the first locking portion 31a while slightly bending the coated conducting wire position regulating member 3 outward.
Then, the covered conductor 2 is engaged with the notch 35.

In the motor A, as described above, the covered conductor 2 is perpendicular to the first sandwiched portion 31 and the second sandwiched portion 34 provided so as to be orthogonal to the first sandwiched portion 31. Therefore, even if a force in the pulling direction is applied to the other end of the coated conductor 2, a large force is not suddenly applied to the connection portion with the solder 4 and the vicinity thereof.
Further, since the coated conductor 2 is engaged with the notch 35, the movement of the coated conductor 2 in the width direction is restricted, and the movement in the width direction is not transmitted to the connection portion with the solder 4 and the vicinity thereof.

Furthermore, when the covered conductor 2 is engaged with the notch 35, the portion of the covered conductor 2 that protrudes from the notch 35 to the outside of the covered conductor position regulating member 3 is the portion sandwiched by the second sandwiching portion 34. It will be in the state bent substantially at right angles to.
Therefore, even if a tensile force is applied to the portion of the coated conductor 2 that protrudes outside the coated conductor position restriction member 3 from the cutout 35, a large frictional resistance is obtained at the edge portion of the notch 35, and the connection portion with the solder 4 and its No large tensile force is applied to the vicinity.
That is, the motor A can reduce the disconnection at the connection portion with the solder 4 and in the vicinity thereof.
Further, since only the conventional coated conductor position regulating member 300 needs to be changed to the coated conductor position regulating member 3, the number of parts can be reduced and the cost is hardly increased.

FIG. 14 shows a second embodiment of the motor of the present invention.
As shown in FIG. 14, the motor B is the same as the motor A except that the leading end of the conducting wire 21 connected to the solder 4 of the coated conducting wire 2 faces the housing 1 side.

The motor of the present invention is not limited to the above embodiment. For example, in the above-described embodiment, the notch is provided in the second sandwiching portion, and the notch restricts the movement in the width direction of the covered conductor, but at a position away from the second sandwiching portion. The covered conductor insertion hole may be provided instead of the notch, and the movement in the width direction may be restricted by inserting the covered conductor into the covered conductor insertion hole.
In the said embodiment, although the housing was carrying out the cylindrical shape provided with two flat surfaces, a cylindrical shape may be sufficient.

A, B Motor 1 Motor body 11 Housing 11a, 11b Flat surface 11c Curved surface 11d First engagement hole 11e Second engagement hole 11f Bottom 11g Bearing portion 12 End cap 12a Bearing portion 12b Terminal 12c Side peripheral surface 12d End surface 13 Rotation Child 13a Rotating shaft 2 Coated conductor 21 Conductor 3 Coated conductor position regulating member 31 First clamping portion 31a First locking portion 32 Motor body clamping portion 32a Second locking portion 33 Connecting portion 33a Side frame portion 34 Second clamping Part 35 Notch 4 Solder

Claims (8)

A metal housing having a bottomed cylindrical shape with one bearing portion supporting the rotating shaft of the rotor provided at the bottom, and two terminals exposed to the outside, and the rotating shaft of the rotor A motor main body having a synthetic resin end cap that is provided with the other bearing part to be supported and closes the opening of the housing;
A motor comprising two coated conductors each connected by solder to a pair of terminals provided on the end cap;
A motor comprising: a covered conductor regulating member which is supported and fixed to the motor body and regulates the position of the coated conductor along the side surface of the end cap and the end face of the end cap.   The motor according to claim 1, wherein the tip of the solder connection portion of the coated conductor is directed toward the housing.   The tip of the solder connection part of the coated conductor is directed to the anti-housing direction, and the coated conductor is folded back to the anti-housing side in the vicinity of the solder connection part, from the side peripheral surface of the end cap to part of the end surface The motor according to claim 1, wherein the motor is adapted to follow.   The covered conducting wire position restricting member has a locking portion, and the motor main body has an engaging hole or an engaging recess for supporting the covered conducting wire restricting member in the covered conducting wire position restricting state by the locking portion being locked. The motor according to any one of claims 1 to 3, which is provided.   The covered conductor position regulating member includes a first sandwiching portion that sandwiches a portion of the coated conductor along the side peripheral surface of the end cap, and a second sandwiching portion that sandwiches a portion along the end surface of the end cap. The motor according to any one of claims 1 to 4.   A pair of left and right second sandwiching portions is provided, and these second sandwiching portions are provided with notches at their edges to engage the covered conductors and maintain a distance between the covered conductors. The motor described. The covered conductive wire position regulating member is provided to face the first sandwiching portion, the motor sandwiching portion that sandwiches the motor body between the first sandwiching portion, the first sandwiching portion, and the first sandwiching portion. It has a frame-shaped connecting part that connects the landing part and the motor body clamping part,
The motor according to claim 6, wherein a pair of second sandwiching portions are provided so as to extend from both side frames of the connecting portion.   7. The motor body clamping portion is provided with a second locking portion, and the motor body is provided with a second engagement hole or engagement recess for engaging the second locking portion. Or the motor of Claim 7.

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