JP2005261101A - Clip for stator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clip for a stator capable of easily fixing a connection part between a lead wire and a wire harness in less number of processes and with less number of components. <P>SOLUTION: The clip is used for the stator of a magnet type generator comprising a stator core 1 where a plurality of salient poles 12 are protruded on the outer periphery of a ring-like yoke, and a power generating coil 1 wound on each salient pole of the stator core 1. A connection part where a lead wire 7 of the generator coil 1 is connected to a wire harness 3 is fixed to a yoke of the stator core 1 using a clip body 4. The clip body 4 is made from synthetic resin, and the clip body 4 comprises a wire material inserting part 41 where a sleeve 5 is capped over the tip of the wire harness 3 and the lead wire 7 for insertion and holding, and a clip piece 42 for grasping by bundling the root part of tip of the wire harness and lead wire. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  INDUSTRIAL APPLICABILITY The present invention is used for a stator of a magnet generator that is mounted on an engine such as a motorcycle, a buggy, or a snow vehicle, and is used for charging an on-board battery or supplying power to an electric device. The present invention relates to a clip for a stator for fixing a connection part of a harness.

  There are two types of magnet generators: an outer rotor type and an inner rotor type. The stator of an outer rotor type magnet generator has a generator coil on each salient pole part of a stator core that has a number of salient pole parts protruding on the circumference. A stator core constructed by winding and laminating steel plates has a plurality of radiating salient poles projecting radially around the ring-shaped yoke part having a circular opening at the center and drilled in the yoke part. It is fixed to the inside of the engine casing or the like using mounting holes and mounting bolts. On the other hand, the rotor fixed to the crankshaft of the engine is rotatably arranged on the outer peripheral portion of the stator via a slight gap.

In such a stator of a magnetic generator, a coil lead wire for deriving the power of the power generation coil is connected to a wire harness through a connection portion, and the connection portion is usually the end of a wire rod. The parts are collectively inserted into a sleeve, and after the sleeve is crimped, soldering is performed, and an insulating tube is further placed thereon. And the connection part is normally bundled and fixed using the metal band on the stator core which wound the power generation coil so that it may describe in following patent document 1. FIG.
Japanese Patent Laid-Open No. 2003-164096

  However, the lead wire connection part is fixed by using a dedicated jig to constrain the lead wires of the multiple coils and the wire harness wire, and then connect the tube to the end of the wire. For example, there is a problem that the number of work steps and the number of parts increase. In addition, since the connected connection part is bundled using a metal band and fixed on the power generation coil of the stator, the gap between the power generation coil and the metal band is prevented during a fixing operation to prevent a short circuit accident. Since it is necessary to ensure and the height of the metal band is limited to a predetermined height or less, there is a problem that it takes a lot of man-hours to fix the connecting portion of the lead wire.

  The present invention solves the above-described problems, and an object of the present invention is to provide a stator clip that can easily fix a connecting portion between a lead wire and a wire harness with a small number of man-hours and the number of parts.

  In order to achieve the above object, a stator clip according to the present invention includes a stator core having a plurality of salient pole portions projecting on the outer periphery of a ring-shaped yoke portion, and a power generation wound around each salient pole portion of the stator core. In a stator clip that is used in a stator of a magnetic generator having a coil, and that connects a connecting portion that connects a lead wire of the power generating coil to a wire harness to a yoke portion of a stator core, the clip body is made of synthetic resin The formed clip body is provided with a wire insertion portion for inserting and holding a sleeve around the lead wire and the distal end portion of the wire harness, and a clip piece for binding and holding the lead wire and the distal end portion of the wire harness. It is characterized by that.

  Here, the clamp piece can be bent via a thin portion, and can be configured by providing a locking portion at the tip of the clamp piece.

  The clip body can be provided with a fixing portion for fixing to the yoke portion of the stator core, and a metal collar having a fixing hole can be insert-molded in the fixing portion.

  In the stator clip having the above configuration, when fixing the lead wire of the power generating coil and the connection portion of the wire harness, first, the tip portions of the lead wire to be connected and the tip portions of the wire harness are bundled, and the tip portions are respectively It inserts into the insertion hole of the wire insertion part of a clip main body from one side of a clip, penetrates each front-end | tip part of a wire from the other side of an insertion hole, and makes it protrude. A metal sleeve is externally fitted to each tip of the wire that has passed through the insertion hole, and is crimped, and soldered there.

  In this state, the bundled wire rod of the lead wire and wire harness protrudes from the wire rod insertion portion of the clip body, but when the lead wire and wire harness are pulled back a little against the wire rod insertion portion, their tip ends are clipped. It will be in the state which entered into the wire insertion part of a main part. Then, the clip body is placed at a predetermined position of the yoke portion of the stator core, a fixing screw is inserted into the fixing hole of the fixing portion, the screw is screwed into the fixing hole of the yoke portion, and the clip is inserted at the predetermined position of the yoke portion. Fix it. Next, when the clip piece is pressed to the bottom side and the locking portion at the tip thereof is locked to the bottom portion, the lead wire and the wire harness are bound and held by the clip piece and fixed.

  In this way, since the connecting portion of the wire rod is fixed by using the clip in which the wire rod insertion portion and the clip piece are integrally provided, there is no need to use a jig as in the prior art, and each wire rod connecting portion is individually provided. The work of fitting the tube becomes unnecessary, and the connecting portion of the wire can be easily fixed with a small number of work steps. In addition, since the connection part of the wire is fixed using a clip formed of an insulating synthetic resin without using a metal band, there is no need to secure an insulation distance from the power generation coil as in the case of a conventional metal band. Further, there is no limitation on the height of the clip on the yoke portion of the stator core, and it is possible to reduce the man-hours and time for the insulation distance check work that has been conventionally performed.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a front view of a stator of a magnet generator. The stator includes a stator core 1 having a plurality of salient pole portions 12 projecting from the outer periphery of a ring-shaped yoke portion 11, and a power generation coil 2 wound around each salient pole portion 12 of the stator core 1. A connecting portion that connects the lead wire 7 of the power generation coil 2 to the wire harness 3 is fixed to the yoke portion 11 of the stator core 1 using the clip 4.

  The stator core 1 around which the power generating coil 2 is wound has a plurality of salient pole portions 12 (here, 18 salient pole portions 12) 20 on the outer periphery of a ring-shaped yoke portion 11 having a circular opening at the center. It is formed by projecting radially at intervals of degrees. Further, the stator core 1 is formed by laminating a plurality of steel plates punched into a predetermined shape and fixing them integrally with a rivet 14. The front ends of the salient pole portions 12 of the foremost steel plate and the back steel plate are bent outwardly in a flange shape, and have a function of holding the power generating coil 2 wound around that portion.

  A fixing hole 13 for fixing to a fixing member such as an engine casing is formed in the ring-shaped yoke part 11 at the center, and a rivet 14 is also inserted into a through hole formed in the yoke part 11. It is fixed by caulking. Furthermore, a screw hole for fixing a clip body 4 described later is formed in the yoke portion 11. A power generating coil 2 is wound around each salient pole portion 12 of the stator core 1 by a winding machine in turn for a predetermined number of turns, and the lead wire 7 at the end of the power generating coil 2 is drawn to the front side as shown in FIG. .

  As shown in FIGS. 2 and 3, the clip body 4 of the stator clip includes a lead wire 7, a wire rod insertion portion 41 that inserts and holds the sleeve 5 on the distal end portion of the wire harness 3, and a lead wire 7. And a clip piece 42 that bundles and holds the end of the wire harness 3 and is integrally formed of synthetic resin.

  When the lead wire 7 and the tip of the wire harness 3 are connected, a metal sleeve 5 is externally fitted to the tip of the lead wire 7 and is fixed by caulking and soldered, but the lead wire 7 and the wire are connected. In order to insert and hold the three connection portions of the harness 3, the wire rod insertion portion 41 is formed by horizontally arranging three insertion holes (through holes), and these insertion holes are connected with the sleeve 5. The size is formed so that the part can be inserted.

  Further, a clamp piece 42 is provided adjacent to the wire insertion portion 41 so as to be bent via a thin portion, and a locking portion 43 is provided at the tip of the clamp piece 42. The clamp piece 42 can be bent in the opening and closing direction via a thin wall portion, and is formed so as to be able to bundle and hold the connection source portion of the lead wire 7 and the wire harness 3 inside thereof, and the connection portion with the sleeve 5 is connected to the wire rod. In this structure, the connection base portion inserted into the insertion portion 41 is gripped. The locking portion 43 provided at the tip of the clamp piece 42 is formed in a bowl shape and can be locked by being pressed against the engaging portion provided at the bottom of the clip body 4.

  Further, a fixing portion 44 for fixing the clip body 4 to the yoke portion of the stator core 1 is provided at the lower portion of the clip body 4, and a metal collar 45 provided with a fixing hole 44a is provided in the fixing portion 44. At the time of molding, insert molding is carried out. As described above, the clip body 4 is integrally formed of a synthetic resin. As the synthetic resin, a hydrocarbon-based resin such as polyethylene, polypropylene, and ABS resin, a polyamide resin such as 6 nylon, and the like can be used.

  When the connecting portion between the lead wire 7 and the wire harness 3 is fixed using the stator clip configured as described above, first, as shown in FIG. 3 are bundled, and the respective leading end portions (here, the three leading end portions) are respectively inserted into the three insertion holes from the clip piece 42 side of the clip main body 4 into the wire insertion portion 41 and inserted into the insertion holes. Each tip of the wire is penetrated from the opposite side of the wire and protruded.

  Next, as shown in FIG. 4, the sleeve 5 is externally fitted to each end portion of the wire penetrating the insertion hole, and is caulked, and further soldered. Thereby, the bundled three tip portions of the lead wire 7 and the wire harness 3 are respectively connected by the sleeve 5 and soldered.

  In this state, the three leading ends of the lead wire 7 and the wire harness 3 that are bundled protrude from the wire insertion portion 41 of the clip body 4, but the lead wire 7 and the wire harness 3 are slightly connected to the clip body 4. When pulled back, the three tip portions enter a state where they enter the wire rod insertion portion 41 of the clip body 4. In this state, the clip body 4 is placed at a predetermined position of the yoke portion 11 of the stator core, the fixing screw 6 is inserted into the fixing hole 44a of the fixing portion 44, and is screwed into the fixing hole of the yoke portion 11, as shown in FIG. As described above, the clip body 4 is fixed to a predetermined portion of the yoke portion 11. Finally, when the clip piece 42 of the clip body 4 is pressed to the bottom side to lock the locking portion 43 at the tip thereof to the bottom, the lead wire 7 and the wire harness 3 are as shown in FIG. It is fixed by being bound and gripped by a stator clip.

  As shown in the sectional view of FIG. 6, the stator clip having the above-described configuration is provided at a predetermined position inside the engine cover 8 via the yoke portion 11 of the stator core 1, that is, the fixing hole of the ring-shaped yoke portion 11. The fixing screws are inserted into 13 and the screws are tightened to be fixed. On the outer periphery of the stator, the yoke portion 21 of the rotor 20 and the permanent magnet 22 fixed to the tip of the crankshaft 26 are rotatably arranged through a slight gap.

  An end portion of the wire harness 3 connected to the power generation coil 2 of the stator and fixed to the clip body 4 is connected to electrical equipment of the engine. Along with the operation of the engine, the rotor rotates, and the permanent magnet of the rotor that is divided into a plurality of outer peripheral portions of the stator rotates, so that an electromotive force is generated in the power generation coil wound around each magnetic pole portion of the stator, Power generation is performed.

  In the above-described embodiment, the number of lead wires and wire harnesses is three, and the number of wire insertion portions of the clip body is three. However, the number can be set as necessary.

  As described above, according to the stator clip of the present invention, since the connecting portion of the wire is fixed using the clip in which the wire insertion portion and the clip piece are integrally provided, it is necessary to use a jig as in the past. Thus, it is not necessary to individually fit the tube into the connecting portion of each wire, and the connecting portion of the wire can be easily fixed with a small number of work steps. In addition, since the connecting part of the wire is fixed using a clip body made of a synthetic resin insulator, it is necessary to secure an insulation distance between the metal band and the power generation coil as in the past, or on the stator core yoke part. This eliminates the limitation on the height of the clip and reduces the man-hours and time required for the insulation distance check work that has been conventionally performed.

It is a front view of the stator of the magnet type generator which shows one Embodiment of this invention. 3 is a perspective view of a clip body 4. FIG. (A) is the front view of the clip main body 4, (b) is the left side view, (c) is the right side view, and (d) is the bottom view. It is a perspective view at the time of connecting and fixing a lead wire and the wire harness 3 to the clip body 4. It is a perspective view of the state where a leader line and wire harness 3 were connected and fixed. It is a center line longitudinal cross-sectional view of a magnet type generator.

Explanation of symbols

1-stator core 2-power generating coil 3-wire harness 4-clip body 5-sleeve 7-lead wire 41-wire material insertion portion 42-clip piece 43-locking portion 44-fixing portion

Claims (3)

It is used for a stator of a magnetic generator comprising a stator core having a plurality of salient poles projecting from the outer periphery of a ring-shaped yoke part, and a power generation coil wound around each salient pole part of the stator core. In the stator clip for fixing the connecting portion for connecting the lead wire of the power generation coil to the wire harness to the yoke portion of the stator core,
The clip body is formed of a synthetic resin, and the clip body is bundled with a wire rod insertion portion for inserting and holding a sleeve on the leading end portion of the lead wire and the wire harness, and the lead wire and the end portion of the wire harness. And a clip for holding the stator.   2. The stator clip according to claim 1, wherein the clamp piece is provided so as to be bendable through a thin portion, and a locking portion is provided at a tip of the clamp piece.   2. The stator according to claim 1, wherein the clip body is provided with a fixing portion for fixing to a yoke portion of the stator core, and the fixing portion is insert-molded with a metal collar having a fixing hole. clip.

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