JP4328945B2 - Motor lead wire pulling structure - Google Patents

Description

  The present invention relates to a lead wire drawing structure of a motor used in, for example, a tilting motor of an outboard motor.

  In the tilt motor, as shown in FIG. 4, the motor 1 has a permanent magnet 3 and a rotor 4 disposed in a yoke 2, and a front bracket 5 is provided with screws 6 on the front surface of the yoke 1. In this bracket 5, two brushes 8 urged by a spring 7, a bearing 10 that holds the rotating shaft 9 of the rotor 4, an oil seal 11, and the like are housed, and two brushes connected to the two brushes 8 are also accommodated. The lead wire 12 is bent through a grommet 13 attached to the front bracket 5 and arranged along the axial direction of the motor 1.

As shown in FIG. 5, the grommet 13 is provided with a mounting groove 13b on the outer periphery of a base portion 13a to be attached to the front bracket 5, and a guide portion 13c is provided on a side surface of the base portion 13a. The guide portion 13c has a front bracket. 5 is provided with a guide groove 14 that guides the lead wire 12 drawn in a direction orthogonal to the axial direction through the inside of the motor 5 by changing the direction of the lead wire 12 to the substantially axial direction of the motor 1 (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 4-47364 (FIGS. 1 and 3)

  However, the motor lead wire lead-out structure having such a structure has a problem that the shape of the grommet 13 is complicated and the cost is increased.

  An object of the present invention is to provide a motor lead wire lead-out structure capable of aligning a motor lead wire in the axial direction of the motor at low cost.

  The present invention is directed to a lead wire drawing structure for a motor in which lead wires drawn from the motor via a grommet are arranged along the axial direction of the motor.

In the lead wire lead-out structure of the motor according to the present invention, a lead wire locking groove is provided in the flange portion protruding from the outer periphery of the motor so as to penetrate in the width direction. A lead wire insertion groove portion provided in the centripetal direction of the motor from the outer peripheral surface of the lead portion, a lead wire shift groove portion provided in the circumferential direction of the motor from the bottom portion of the lead wire insertion groove portion, and a tip of the lead wire shift groove portion And a lead wire holding groove provided by being folded back from the portion in the centrifugal direction of the motor,
The lead wire pulled out from the motor via the grommet is held in the lead wire holding groove portion of the lead wire locking groove and is arranged along the axial direction of the motor.

Further, in the lead wire lead-out structure of the motor according to the present invention, a lead wire engaging groove is provided in a flange portion protruding from the outer periphery of the motor so as to penetrate in the width direction, and the lead wire engaging groove is Lead wire insertion groove portions provided in the centripetal direction of the motor from the outer peripheral surface of the flange portion, and leads provided along the circumferential direction of the motor in two opposite directions across the bottom portion of the lead wire insertion groove portion. It is composed of wire shifting groove portions and lead wire holding groove portions that are respectively provided by turning back in the centrifugal direction of the motor from the tip portions of these lead wire shifting groove portions,
The two lead wires drawn out from the motor through the grommets are individually held in the lead wire holding grooves of the lead wire locking grooves and arranged along the axial direction of the motor. It is characterized by.

  In these cases, the collar portion is preferably made of resin.

  In the lead wire lead-out structure of the motor according to the present invention, the lead wire engaging groove provided in the flange portion protruding from the outer periphery of the motor in the width direction is provided from the outer peripheral surface of the flange portion to the centripetal direction of the motor. A lead wire insertion groove provided on the lead wire, a lead wire shift groove provided in the circumferential direction of the motor from the bottom of the lead wire insertion groove, and a lead wire provided folded back from the tip of the lead wire shift groove in the centrifugal direction of the motor. Since the lead wire pulled out from the motor through the grommet is held in the lead wire holding groove portion of the lead wire locking groove and arranged along the axial direction of the motor, it has a complicated shape. Without using a grommet, the lead wire can be held along the axial direction of the motor at low cost.

  In the lead wire lead-out structure of the motor according to the present invention, the lead wire locking groove provided in the flange portion protruding from the outer periphery of the motor in the width direction is provided from the outer peripheral surface of the flange portion. Lead wire insertion grooves provided in the centripetal direction, lead wire shifting grooves provided along the circumferential direction of the motor in two opposite directions across the bottom of the lead wire insertion grooves, and tips of these lead wire shifting grooves 2 lead wire holding groove portions that are respectively folded back in the centrifugal direction of the motor, and the two lead wires pulled out from the motor through the grommet are individually held in each lead wire holding groove portion of the lead wire locking groove. Since it is arranged along the axial direction of the motor, it is possible to hold the two lead wires along the axial direction of the motor at low cost without using a grommet having a complicated shape. That.

  In these cases, if the collar portion is made of resin, the lead wire can be prevented from being damaged at the collar portion.

  1 to 3 show an example of the best mode of the lead wire drawing structure of the motor embodying the present invention. FIG. 1 is a plan view of the main part of the lead wire drawing structure of the motor of this example, and FIG. FIG. 3 is a cross-sectional view taken along the line XX of FIG. 1, and FIG.

  In the lead wire drawing structure of the motor of this example, two lead wires 12 are drawn from the resin front bracket 5 of the motor 1 through a simple grommet 13.

  A resin flange 15 projects from the outer periphery of the resin front bracket 5. The resin flange 15 is provided with a lead wire locking groove 16 penetrating in the width direction. The lead wire locking groove 16 has a lead wire insertion groove portion 16a provided in the centripetal direction of the motor 1 from the outer peripheral surface of the flange portion 15 and two opposite directions across the bottom portion of the lead wire insertion groove portion 16a. The lead wire shifting groove portions 16b provided along the circumferential direction of the lead wire and the lead wire holding groove portions 16c respectively provided by turning back from the tip end portions of the lead wire shifting groove portions 16b in the centrifugal direction of the motor 1. . The lead wire insertion groove 16a is provided with a width that allows the lead wire 12 to be inserted. Each lead wire shifting groove 16b is provided with such a width that the individual lead wires 12 can be shifted and moved. Each lead wire holding groove 16c is provided with a width capable of holding each lead wire 12 in a sandwiched state. A chamfered portion (not shown) is preferably provided on each end face of the lead wire insertion groove 16a, the lead wire shifting groove 16b, and the lead wire holding groove 16c of the lead wire locking groove 16.

  The intermediate portions of the two lead wires 12 drawn from the motor 1 through the grommet 13 are individually inserted into the lead wire insertion groove 16a in the centripetal direction. One lead wire 12 is shifted along one lead wire shifting groove portion 16b, returned in the centrifugal direction at a position corresponding to the lead wire holding groove portion 16c, and fitted into the lead wire holding groove portion 16c. Similarly, the other lead wire 12 is shifted along the other lead wire shifting groove portion 16b, returned in the centrifugal direction at a position corresponding to the lead wire holding groove portion 16c, and fitted into the lead wire holding groove portion 16c. As a result, intermediate portions of the two lead wires 12 are individually held in the lead wire holding groove portions 16 c of the lead wire locking grooves 16 and arranged along the axial direction of the motor 1.

  Note that when the two lead wires 12 drawn from the motor 1 through the grommet 13 are covered with a single tube, the lead wire shifting groove portion 16b and the lead wire holding groove portion 16c of the lead wire locking groove 16 are formed. Only need one side.

  Moreover, although not shown, such a lead wire locking groove 16 can also be provided on a resin flange of a resin end bracket provided on the motor 1 as shown in FIG.

It is a principal part top view which showed an example of the best form of the lead wire pull-out structure of the motor which implements this invention. It is XX sectional drawing of FIG. It is the principal part vertical side surface of the lead wire drawer structure of the motor of this example. It is a partial vertical side view of the conventional lead wire drawing structure of the motor. It is a perspective view of the grommet used in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Motor 2 Yoke 3 Permanent magnet 4 Rotor 5 Front bracket 6 Screw 7 Spring 8 Brush 9 Rotating shaft 10 Bearing 11 Oil seal 12 Lead wire 13 Grommet 14 Guide groove 15 Grow part 16 Lead wire locking groove 16a Lead wire insertion groove part 16b Lead Line shifting groove 16c Lead wire holding groove

Claims (3)

In the lead wire drawing structure of the motor in which the lead wire drawn out from the motor via the grommet is arranged along the axial direction of the motor,
A lead wire locking groove is provided in the flange protruding from the outer periphery of the motor in the width direction, and the lead wire locking groove is provided in the centripetal direction of the motor from the outer peripheral surface of the flange. The lead wire insertion groove portion, the lead wire shifting groove portion provided in the circumferential direction of the motor from the bottom portion of the lead wire insertion groove portion, and the tip portion of the lead wire shifting groove portion folded back in the centrifugal direction of the motor. Lead wire holding groove,
The lead wire pulled out from the motor via the grommet is held in the lead wire holding groove portion of the lead wire locking groove and arranged along the axial direction of the motor. Lead wire drawing structure. In the lead wire drawing structure of the motor in which the lead wire drawn out from the motor via the grommet is arranged along the axial direction of the motor,
A lead wire locking groove is provided in the flange portion protruding from the outer periphery of the motor in the width direction, and the lead wire locking groove is provided in the centripetal direction of the motor from the outer peripheral surface of the flange portion. Lead wire insertion groove portions, lead wire shifting groove portions provided along the circumferential direction of the motor in two opposite directions across the bottom portion of the lead wire insertion groove portions, and leading ends of these lead wire shifting groove portions It is composed of lead wire holding grooves provided by being folded back in the centrifugal direction of the motor,
The two lead wires drawn out from the motor through the grommets are individually held in the lead wire holding grooves of the lead wire locking grooves and arranged along the axial direction of the motor. Motor lead wire pullout structure.   The lead wire pulling-out structure for the motor according to claim 1 or 2, wherein the flange portion is made of resin.

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