JP2000175396A - Stator for outer rotor multipole generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate coil connecting work for reduction in the number of operations and prevention of a terminal block from bending by protrudingly- mounting a rib which expands along the radial direction of a bobbin, and closely faces the side surface opposite to the terminal block of a connecting plate between mutual fitting holes of the bobbin. SOLUTION: A rib 62 expanding along the radial direction of a bobbin 35 is protrudingly mounted on an end surface facing the rotor yoke of the bobbin 35 so as to be inserted between a fitting hole and a press-in hole mutually, and guides connecting parts 51, 58 when connecting terminals 421, 422 for external conductor, a coil connecting part 51 of the connecting terminal, and the connecting part 58 of a connecting terminal 44 for ground are bent. The connecting block 50 of the connecting terminals 421, 422 for external conductor is formed on a side surface 50a opposite to a side continuously connecting to the terminal block so as to closely face the rib 62 disposed on the side of the side surface 50a. It is thus possible to facilitate connecting operation for reduction in the number of operations and prevention of the terminal block from being bent when the terminal block is fitted into the fitting hole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a plurality of coils,
A plurality of fitting holes wound around a number of salient poles provided on the outer periphery of the stator core via bobbins, and provided on the bobbin on both sides in the axial direction of the bobbin on the inner side of each coil along the radial direction of the stator core. A plurality of connection terminals for external conductors made of conductive metal are fitted and fixed respectively, and an external conductor is connected to one end of each connection terminal for external conductors, and a coil is connected to the other end of each connection terminal for external conductors. The present invention relates to a stator for an outer rotor type multipolar generator to which is connected, and more particularly to an improvement in a connection structure between a coil and an external conductor.

[0002]

2. Description of the Related Art Conventionally, such a stator for an outer rotor type multipolar generator has been already known from Japanese Patent Application Laid-Open No. 9-93849, and a coil is connected to a connection terminal by soldering.

[0003]

Generally, a so-called magnet wire whose outer periphery is coated with an insulating film is used for the coil, and the coil is connected to the connection terminal by soldering as in the above-mentioned conventional case. In such a method, the work of peeling off the insulating film of the magnet wire is required for soldering, and the work of connecting the coil to the connection terminal is complicated, and the number of work steps is increased.

In order to eliminate the work of peeling off the insulating film from the magnet wire, it is conceivable to fuse the coil to the connection terminal. However, when fusing the coil to the connection terminal, the coil connection portion of the connection terminal needs to be arranged at a position relatively distant from the bobbin. And the size of the stator is increased.

Accordingly, the applicant of the present invention has proposed that a terminal plate portion fitted into a fitting hole of a bobbin to connect an external conductor is connected to one end of a connecting plate portion extending in a radial direction of a stator at right angles, Before the fusing connection of the lead wire extending from the coil, the fusing connection is continued at a right angle to the other end of the connection plate portion, but after the fusing connection of the lead wire, the coil connection portion bent to overlap the connection plate portion is connected to the connection portion. A stator using connection terminals connected to the other end of the plate has already been proposed (Japanese Patent Application No. 9-311837). According to this method, even if the coil is made of a magnet wire, the work of peeling off the insulating film is unnecessary, and the connection of the coil to the connection terminal is facilitated, so that the number of working steps can be reduced. By bending the terminal portion for use so as to overlap the connecting plate portion, the arrangement space for the connection terminals can be reduced.

However, the above-mentioned proposal (Japanese Patent Application No. 9-3)
In No. 11837), the terminal plate portion and the connecting plate portion are provided at right angles in a plane including the axis of the bobbin, and the width of the terminal plate portion becomes relatively large along the circumferential direction of the bobbin, that is, the stator. For this reason, when the stator has a relatively large diameter, it is possible to arrange a plurality of fitting holes at positions spaced along the circumferential direction of the bobbin. However, when the stator has a relatively small diameter, it is difficult to secure a space for disposing a plurality of fitting holes.

In order to solve such a problem, as shown in FIG. 16, each fitting hole 45 'is formed so as to have a rectangular cross section long in the radial direction of the bobbin 35'. It is conceivable to configure the external conductor connection terminal 42 'by connecting a terminal plate 49' at a right angle to one side of the inner end of the connection plate 50 '. However, in such an external conductor connection terminal 42 ', as shown in FIG.
When a pressing force is applied to the connection terminal 42 'to fit the terminal plate portion 49' into the fitting hole 45 ', as shown in FIG. ′, A bending force is applied in a direction in which the side end of the connecting plate portion 50 ′ opposite to the side on which the terminal plate portion 49 ′ is continuously provided approaches the bobbin 35 ′. As a result, FIG.
As shown in (c), there is a possibility that the terminal plate portion 49 'may be fitted into the fitting hole 45' while being bent. In such a state, an external conductor is connected to one end of the terminal plate portion 49 '. The connection work at the time of connection becomes difficult.

The present invention has been made in view of the above circumstances, and can be applied to a relatively small-diameter stator without difficulty, thereby facilitating the operation of connecting a coil to an external conductor connection terminal. It is an object of the present invention to provide an outer rotor type multi-pole generator stator in which the terminal plate portion is prevented from bending.

[0009]

In order to achieve the above object, according to the first aspect of the present invention, a plurality of coils are wound around a plurality of salient poles provided on an outer periphery of a stator core via a bobbin, A plurality of connection terminals for conductive wires made of conductive metal are fitted and fixed in a plurality of fitting holes provided in the bobbin between both ends in the axial direction on the inner side of each coil along the radial direction of the stator core. In the outer rotor type multipolar generator stator in which an external conductor is connected to one end of each external conductor connection terminal and a coil is connected to the other end of each external conductor connection terminal, the fitting hole is One end connected to the external conductor has a rectangular cross-sectional shape that is long along the radial direction of the bobbin, and is provided at a plurality of locations spaced apart in the circumferential direction of the bobbin. Fit side A terminal plate portion that is protruded from the hole and is fitted and fixed in the fitting hole, and is formed in a flat plate shape extending in the radial direction of the bobbin, and is provided on one side of an inner end portion along the radial direction of the bobbin. A connecting plate portion having the other end of the terminal plate portion connected at a right angle, and an end portion of the coil can be connected to the distal end portion by fusing, and before the fusing connection, a right angle to an outer end of the connecting plate portion. But after the fusing connection, a coil connection portion that is bent so as to overlap the connection plate portion, and extends along the radial direction of the bobbin between the fitting holes of the bobbin. It is characterized in that a plurality of ribs protruding near and facing the side surface of the connecting plate portion opposite to the terminal plate portion.

According to the structure of the first aspect of the present invention, each fitting hole has a rectangular cross-sectional shape that is long in the radial direction of the bobbin, and is fitted into the fitting hole. Since the terminal plate portion is connected to one side of the inner end portion of the connecting plate portion extending in the radial direction of the bobbin at a right angle, a plurality of fitting holes are arranged even if the stator has a relatively small diameter. When a pressing force is applied to the external conductor connection terminal to fit and fix the terminal plate into the fitting hole, the ribs protruding from the bobbin are easily secured. By being close to and facing the side of the connecting plate that is opposite to the terminal plate, the side of the connecting plate that is opposite to the terminal plate is guided by the ribs. Can be prevented from bending as much as possible. In addition, by fusing-connecting the lead wire from the coil to the coil connection part that is connected to the connecting plate at a right angle, even if it is a coil made of magnet wire, the work of peeling off the insulating film is unnecessary, and the coil The connection to the connection terminal can be easily performed, so that the connection operation is facilitated and the number of operation steps can be reduced. In addition, since the coil connection portion is bent so as to overlap the connecting plate portion after the connection of the lead wires, the coil connection portion can be prevented from protruding from the stator, and the arrangement space for the connection terminals can be reduced.

[0011] The invention according to claim 2 provides the above-mentioned claim 1.
In addition to the configuration of the invention described, on both sides of the terminal plate portion,
Protrusions that bite into the inner surface of the fitting hole are protrudingly provided, and the height of each rib is higher than each connecting plate portion when the protrusion starts to be inserted into the fitting hole. According to such a configuration, the fitting state of the terminal plate portion to the fitting hole is reliably held by the protrusion protruding into the inner surface of the fitting hole, In addition, at the time when the protruding portion bites into the inner surface of the fitting hole during the fitting operation of the terminal plate portion into the fitting hole, resistance to the pressing force is generated, the connecting plate portion is at a position lower than the rib. Therefore, it is possible to more reliably prevent the terminal plate from being bent by guiding the connecting plate by the rib.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, a press-fit hole is provided in the stator core, and one end of the exciter coil of the plurality of coils is connected to the external conductor. The ground connection terminal, which is connected to the connection terminal and the other end of the exciter coil is fusing-connected, is press-fitted into the press-fitting hole. According to such a configuration, the other end of the exciter coil is grounded. In doing so, fusing connection to the ground connection terminal at the other end of the exciter coil is enabled, and even if the exciter coil is made of a magnet wire,
Since the operation of removing the insulating film is not required, the connection of the exciter coil to the ground connection terminal can be easily performed, and the connection operation can be facilitated and the number of operation steps can be reduced.

According to a fourth aspect of the present invention, in addition to the configuration of the third aspect, the ground connection terminal extends in a radial direction of the bobbin with a pin portion press-fitted into the press-fitting hole. The pin portion is formed in the shape of a flat plate, and the pin portion is provided at the center in the width direction of the inner end along the radial direction of the bobbin. A pair of holding plate portions that are continuously provided and extend inward along the radial direction of the bobbin, and the other end of the exciter coil can be connected to the distal end portion by fusing, and the flat plate portion is connected before the fusing connection. A connecting portion which is connected to the outer end at a right angle, but which is bent so as to overlap the flat plate portion after the fusing connection.

According to the structure of the invention, the exciter coil is made of a magnet wire as in the case of the connection terminal for the external conductor, so that the operation of peeling off the insulating film is not required. The coil can be easily connected to the ground connection terminal, and after the exciter coil is connected, the connection is bent so that it overlaps the flat plate. The terminal arrangement space can be reduced. Moreover, by pressing the pair of pressing plate portions disposed on both sides of the pin portion, the pin portion can be stably pressed into the press-fitting hole while preventing the pin portion from bending.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below based on one embodiment of the present invention shown in the accompanying drawings.

1 to 15 show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of an outer rotor type multipolar generator, and is a sectional view taken along line 1-1 in FIG. 2 is 2 in FIG.
FIG. 3 is a front view of the stator viewed from a direction indicated by an arrow 2 in FIG.
3 is a rear view of the stator viewed from the direction of arrows 3-3 in FIG. 3, FIG. 4 is a view showing a state where the terminal holder is removed from FIG. 3, and FIG.
5 is an enlarged cross-sectional view taken along line 5-5, FIG. 6 is a connection circuit diagram of the coil, FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 5, FIG. FIG. 10 is a longitudinal sectional view showing a state before bending of a ground connection terminal attached to a stator core, FIG. 11 is a sectional view taken along line 11-11 of FIG. 10, and FIG. 12 is an arrow 12 in FIG. FIG. 13 is a view of the terminal holder as viewed from the direction indicated by the arrow 13 in FIG. 5, and FIG. 14 is a view 14-1 of FIG. 13 for explaining the mounting of the female terminal to the terminal holder.
FIG. 15 is a sectional view taken along line 4, and FIG. 15 is a view sequentially showing a process of assembling the connection terminals for the external conductor to the stator.

First, in FIG. 1, a sleeve 22 that partially protrudes into the casing 21 is fixed to a casing 21 of the outer rotor type multipolar generator. The oil seal 25 is coaxially arranged in the sleeve 22 with the oil seal 25 interposed between the sleeve 22 and the sleeve 22. A bowl-shaped rotor yoke 26 is coaxially fastened to the end of the crankshaft 23, a magnet 28 is fixed to the inner periphery of the rotor yoke 26, and a cooling fan 29 is fixed to the rotor yoke 26. .

A stator 30 is fixed to an end of the sleeve 22 with a pair of bolts 31.
The magnet 28 provided in 6 coaxially surrounds the stator 30 so as to form a slight air gap with the stator 30.

Referring also to FIGS. 2 to 5, the stator 3
Numeral 0 is provided with a stator core 32 composed of a plurality of core plates stacked on each other, and the stator core 32 is provided around an outer periphery of a core base 33 formed in a ring shape.
A plurality of, for example, 21 salient poles 34 formed in a substantially T-shape,
34 project from each other at equal intervals.

Most of the stator core 32 is covered with a bobbin 35 made of a synthetic resin, and the bobbin 35 exposes a part of the end of each salient pole 34, 34. Thus, the stator core 32 is formed so as to cover both ends in the axial direction.

2 which are equally spaced in the circumferential direction of the core base 33
Insertion holes 36, 36 are provided at locations, and bolts 31 for fastening the stator 30 to the sleeve 22 are inserted into the insertion holes 36, 36, respectively.

18 out of the 21 salient poles 34, 34,.
Each of the salient poles 34 is wound with a main coil 37 via a bobbin 35, and the two salient poles 34, 3
DC coils 38, 38 are wound around 4 via bobbins 35, respectively, and sub-coils 39 and exciter coils 40 are wound around the remaining salient poles 34 via bobbins 35. In addition, the bobbin 35 is formed integrally with a partition plate portion 41 that partitions the sub coil 39 and the exciter coil 40.

In FIG. 6, six U connected in series
, One end of six V-phase main coils 37 connected in series, one end of six W-phase main coils 37 connected in series, and connected in series. that DC one end of the coil 38 are respectively connected to connection terminals 42 ₂ for external conductors, for U-phase, and for V phase W
The other ends of the phase main coils 37 are commonly connected to the connection terminal 43 as a neutral point. The DC coil 38
The other end of the one end of both ends and the exciter coil 40 of the sub-coil 39 are respectively connected to connection terminals 42 ₁ for external conductors, the other end of the exciter coil 40 is connected to the ground connection terminal 44.

In FIG. 7, a pair of through portions 35a and 35b penetrating the core base 33 of the stator core 32 across both ends thereof are integrally formed on the bobbin 35 in an arc shape centering on the axis of the stator 30. You.

One through-hole 35a has four fitting holes 45 individually corresponding to the four external conductor connection terminals 42 ₁ .
_{, And one} fitting hole 46 corresponding to the connection terminal 43;
The fitting recess 4 for making the four fitting holes 45 ₁ .
7 _1, a recess 54 for exposing the engagement hole 46 is provided.

Each of the fitting holes 45 ₁ has a rectangular cross section that is long in the radial direction of the bobbin 35, and the bobbin 35 is formed at a plurality of positions spaced in the circumferential direction of the bobbin 35. Is provided in the through portion 35a so as to open one end on a surface facing the rotor yoke 26. The fitting recess 47 ₁ is provided on the surface of the bobbin 35 facing the casing 21 so that the other ends of the fitting holes 45 ₁ ... Commonly face each other, and is formed in an arc shape. Further, the fitting hole 46 has a rectangular cross section that is long along the radial direction of the bobbin 35.
Are provided in the through portion 35a so as to open one end on the surface of the bobbin 35 facing the rotor yoke 26 at a position where the distance from the center is the same as each of the fitting holes 45 ₁ .
4 is a bobbin 3 that faces the other end of the fitting hole 46.
5 is provided on the surface facing the casing 21.

The other through-hole 35b has four fitting holes 45 individually corresponding to the four external conductor connection terminals 42 ₂ .
₂ ... and the fitting recess 47 ₂ for exposing their fitting hole 45 ₂ ... in common is provided.

Each of the fitting holes 45 ₂ has a rectangular cross-section that is long in the radial direction of the bobbin 35, and the bobbins 35 are formed at a plurality of locations spaced apart in the circumferential direction of the bobbin 35. Is provided in the penetrating portion 35b such that one end is opened on a surface facing the rotor yoke 26. The fitting recess 47 ₂ is provided on the surface of the bobbin 35 facing the casing 21 so that the other end of each fitting hole 45 ₂ ... Faces in common, and is formed in an arc shape.

A press-fitting hole 48 having a circular cross section extending between both ends in the axial direction of the core base 33 is provided in the core base 33 of the stator core 32 between the through-holes 35a and 35b.

[0030] In FIGS. 8 and 9, external lead wire connection terminal 42 ₁ is fitted into the fitting hole 45 _1, and the terminal plate section 49 which is fixed, it is formed in a flat plate shape extending in the radial direction of the bobbin 35 A connecting plate portion 50 in which the terminal plate portion 49 is provided at a right angle on one side of an inner end portion of the bobbin 35 along the radial direction.
And a coil connection portion 5 connected to the outer end of the connection plate portion 50
1 and is formed of a conductive metal.

The terminal plate 49 is formed in a rectangular plate shape, when fitted into the fitting hole 45 ₁ to abut the bobbin 35 as shown the connecting plate portion 50 in FIG. 5, one end There has a length that protrudes from the fitting hole 45 ₁ into the mating recess 47 _1. The coil connection portion 51, in the prior assembling into the stator 30 of the external lead wire connection terminal 42 _1, the terminal plate section 49 in the opposite direction, i.e. fitting holes 45 ₁ to the direction in which the terminal plate section 49 extends At the time of insertion, the coil connecting portion 51 is perpendicular to the connecting plate portion 50 in a direction away from the bobbin 35, but the coil connecting portion 51 can be bent so as to overlap the connecting plate portion 50.

Furthermore, the fitting holes 4 are provided on both sides of the terminal plate portion 49.
5 ₁ of the terminal plate 49 bite into the sides inner surface fitting hole 45 ₁
Protrusions 52, 52 are provided to prevent detachment from the vehicle.

The coil connecting portion 51 has a flat supporting portion 51a whose base end is continuous with the outer end of the connecting plate portion 50, and a cylindrical shape formed by processing the flat plate into a round shape.
a integrally provided with a cylindrical portion 51b provided in the middle portion in the longitudinal direction of a, and a cylindrical portion 51c formed in a cylindrical shape by processing a flat plate into a round shape, and provided at a distal end portion of the support portion 51a; The cylindrical portion 51c on the distal end side is formed in a cylindrical shape so that it can be crushed so as to approach the support portion 51a. Thus to both cylindrical portion 51b, the 51c, it is possible to insert the lead wire 53 ₁ ... (refer to FIG. 9) extending from each main coil 37 ... and DC coil 38.

The stator 30 of the external conductor connection terminal 42 ₁
Assembled to, and when the lead wire 53 ₁ connection to external lead wire connection terminals 42 _1, both the cylindrical portion 51b of the coil connection portion 51, in a state that allowed insertion of the lead wire 53 ₁ to 51c, the terminal plate section 49 is fixed to the bobbin 35 by applying force to the fitting hole 45 ₁ , and the lead wire 53 ₁ is connected to the cylindrical portion 51 c on the tip side of the coil connection portion 51 by fusing, and thereafter, the coil Connection part 51
May be bent so as to overlap the connecting plate portion 50.

The external lead wire connection terminals 42 ₂ are those having the external lead wire connection terminal 42 ₁ of the same shape, the same work procedure the connecting external conductors terminals 42 _1, fitting hole 4
Fitting to 5 _2, together are with the stator 30 two sets by a fixed, DC coils 38, to the sub-coils 39 and exciter output wire 53 ₂ ... extending from motor coil 40 external lead wire connection terminal 42 ₂ (see Fig. 9) The fusing connection and the bending of the coil connection portion are sequentially performed.

Further connection terminals 43 are those having the external lead wire connection terminals 42 _1, 42 ₂ of the same shape,
In the external lead wire connection terminals 42 _1, 42 ₂ and the same work procedure, fit to the fitting hole 46, together are assembled to the stator 30 by a fixed, U-phase, the main coil of the V phase and W phase 37 Are commonly connected to the connection terminal 43 by fusing connection, and thereafter, the coil connection portion is bent.

10 to 12, the ground connection terminal 44 has a pin portion 55 which is press-fitted into the press-fitting hole 48, and extends in the radial direction of the bobbin 35 so as to be formed in a flat plate shape. A flat plate portion 56 in which the pin portion 55 is continuously provided at a right angle at the center of the inner end along the width direction, and a bobbin 3 connected to the inner end of the flat plate portion 56 on both sides of the pin portion 55.
5, a pair of holding plate portions 57 extending inward along the radial direction,
It has a connecting portion 58 connected to the outer end of the flat plate portion 56 and is formed of a conductive metal.

An insertion hole 60 corresponding to the press-fit hole 48 is provided on the end face of the bobbin 35 on the side facing the rotor yoke 26. The pin portion 55 of the ground connection terminal 44 is formed in a rod shape having a rectangular cross section so as to be capable of being pressed into the press-fitting hole 48 having a circular cross-section. 48. Further, the pin portion 55 has such a length that one end thereof does not protrude from the press-fitting hole 48 when the flat-plate portion 56 is press-fitted into the press-fitting hole 48 until it comes into contact with the bobbin 35 as shown in FIGS. Having. Protrusions 59 are provided on both sides of the pin portion 55 to prevent the pin portion 55 from being detached from the press-in hole 48 by digging into the inner surface of the press-in hole 48.

The connecting portion 58 of the ground connection terminal 44 has a flat supporting portion 58a whose base end is continuous with the outer end of the flat plate portion 56.
And a cylindrical portion 58b formed in a cylindrical shape by processing the flat plate into a round shape and provided at a longitudinally intermediate portion of the support portion 58a; and a cylindrical portion formed in a cylindrical shape by processing the flat plate into a round shape. The cylindrical portion 58c provided at the distal end of the cylindrical portion 58a is provided integrally with the cylindrical portion 58c. The cylindrical portion 58c on the distal side is formed in a cylindrical shape so that it can be crushed so as to approach the supporting portion 58a. Thus, both cylindrical portions 5
A lead wire 61 (see FIG. 9) extending from the other end of the exciter coil 40 can be inserted into 8b and 58c.

Assembling the ground connection terminal 44 to the stator 30 and the lead wire 6 to the ground connection terminal 44
1 is connected to both cylindrical portions 58 of the connecting portion 58.
In a state where the lead wire 61 is inserted through the b and 58c, the pin portions 55 are pressed into the press-in holes 48 so as to press down the both holding plate portions 67, 67, thereby being pressed into the stator core 32 and fixed. The lead wire 61 may be connected to the distal end cylindrical portion 58c by fusing, and then the connecting portion 58 may be bent so as to overlap the flat plate portion 56.

The bobbin 35 faces the rotor yoke 26.
Each end hole 45₁…, 45 _Two…, 46 and pressure
Half of the bobbin 35 is inserted between the
A plurality of ribs 62...
Are connected to the connection terminals 42 for external conductors.₁
…, 42_Two… And the coil connection part 51 of the connection terminal 43
… And the connecting portion 58 of the ground connection terminal 44 is bent
Machine that guides those connecting parts 51.
Perform noh.

Moreover, the connection terminals 42 ₁ ...
2 ₂ ... connecting plate 50 ... in the, to the side on which the terminal plate section 49 is continuously provided side 50a opposite ..., the side surface 50a
Is formed so as to be close to and opposed to the rib 62 arranged on the side of the.

The height of each of the ribs 62 is such that the projections 52, 52 projecting from both sides of the terminal plate 49 in the connection terminals 42 ₁ , 42 ₂ .
₁ , 45 ₂ , and each connecting plate 5
0... Are set higher.

Referring again to FIG. 6, connection terminals 42 ₂ ... For external conductors connected to one ends of U-phase, V-phase and W-phase main coils 37.
The external lead wire connection terminal 42 ₂ is connected to the 8 end of,
The external conductors 63 ₂ are individually connected. The external conductors 63 ₁ are individually connected to the external conductor connection terminals 42 _1, which are respectively connected to the other end of the DC coil 38, both ends of the sub coil 39, and one end of the exciter coil 40.

Female terminals 64 are attached to the ends of the four external conductors 63 _1, and four external conductors 63 _2, respectively. The female terminals 64 of the external conductors 63 ₁ ,
Synthetic resin is held in common to terminal holder 65 _1, ... external conductors 63 ₂ ... female terminal 64 is held in common in the synthetic resin terminal holder 65 _2.

The terminal holder 65 _1, 65 _2, the stator 3
0 fitting recess 47 ₁ formed on the end surface of the casing 21 side of the bobbin 35 in, 47 ₂ each is intended to be removably fitted, their terminal holder 65 _1,
The female terminal 64 ... held in 65 _2, the fitting recess 47 ₁ to function as a male terminal, 47 ₂ connecting the external conductors are projected in the terminal 42 ₁ ..., 42 ₂ ... terminal plate When the parts 49 are fitted, the connection terminals 42 for external conductors are connected.
₁ ... connected external conductors 63 ₁ ..., respectively, the external conductors 63 ₂ ... is to be connected to the connecting terminal 42 ₂ ... outer conductor.

[0047] In FIGS. 13 and 14, the terminal holder 65 _1, 65 _2, the fitting recess 47 _1, 4 of the bobbin 35
7 ₂ is formed in a substantially arcuate shape so as to respectively be fitted into the fitting recess 47 _1, 47 ₂ external lead wire connection terminal 42 which protrudes respectively ₁ ..., 42 ₂ ... terminal plate portion 49
The terminal holding holes 66 individually corresponding to...
Provided 5 _1, 65 _2.

The terminal holding hole 66 is₁, 6
5_TwoInner end face of the fitting recess 47 ₁, 47_TwoClosed end of
Holding hole 66a having one end opened on the side end face;
Between the other end of the portion 66a and the fitting recess 47₁, 47_Twoof
The holding hole is formed by forming a slope-shaped regulating portion 66b facing the closed end side.
A communication hole 66c connecting one end to the other end of the portion 66a;
From the lead-out hole 66d connected to the other end of the communication hole 66c.
Become.

The female terminal 65 is fitted into the holding hole 66a.
It has a cross-sectional shape that can be held, and the communication hole 6
6c is formed in the terminal holder 65 _1, 65 ₂ to reduce the cross-sectional area than the holding hole 66a, further lead-out hole portion 6
6d, the terminal holder 65 ₁ so as to have an inner diameter that can be drawn external conductors 63 _1, 63 ₂ to the outside, 65
Formed into _two .

[0050] Such pin holder 65 _1, 65 _2,
In holding the female terminal 65, the external conductor 6
3 _1, 63 ₂ of the female terminal 65 attached to the end
Are connected to the external conductors 63 ₁ , 63 _{1 as} shown in FIG.
₂ is fitted to the holding hole 66a so as to be drawn out from the lead-out hole 66d, and in this state, the external conductors 63 ₁ , 63
_It is sufficient if a traction force is applied to ₂ so that FIG.
As shown in (b), the female terminal 64 is fitted in the holding hole 66a until it abuts against the restriction portion 66b, that female terminal 64 in this state is held by the terminal holder 65 _1, 65 ₂ Become.

The four external conductors 63 ₁ ... Drawn from the terminal holder 65 ₁ and the four external conductors 63 ₂ ... Drawn from the terminal holder 65 ₂ are made of a common synthetic resin as shown in FIG. It is inserted into the tube 67, bundled, and pulled out of the casing 21 (see FIG. 1).

Next, the operation of this embodiment will be described.
And the connection terminal 42 for the external conductor₁…, 42_Two… And connections
A fitting provided on the bobbin 35 for fitting the terminal 43
Hole 45₁…, 45_Two…, 46 is the radius of the bobbin 35
Has a rectangular cross-sectional shape that is long along the
Are provided at a plurality of locations spaced apart in the circumferential direction. I
Momo external conductor connection terminal 42₁…, 42_Two… And connections
The terminal 43 has a fitting hole 45. ₁…, 45_Two…, Fit into 46,
Along the terminal plate portions 49 to be fixed and the radial direction of the bobbin.
The terminal plate portions 49 are connected at right angles to one side of the inner end portion.
The connecting plate portions 50 are connected to the outer ends of the connecting plate portions 50.
Coil connecting portions 51... Accordingly
Therefore, even if the stator 30 has a relatively small diameter,
Each fitting hole 45₁…, 45_Two…, Space to place 46
Stator is relatively small in diameter
30 can be effectively applied.

The coils 37, 38, 39, 4 are connected to the coil connecting portion 51, which is connected to the connecting plate portion 50 at a right angle.
0 lead wire 53 ₁ from ..., by the 53 ₂ ... to fusing connection, even if the coils 37 to 40 is made of magnet wire, each coil as the unnecessary work of peeling the insulation coating 37 to 40 Connection terminals 42 ₁ …,
42 ₂ ..., a connection to 43 can be easily performed, thus connecting work is facilitated, thereby reducing the working steps.

Further, since the coil connecting portions 51 are bent so as to overlap the connecting plate portion 50 after the connection of the lead wires 53 ₁ , 53 _2, ... Terminals 42 ₁ , 42 ₂ , 43
Of the stator 30 can be reduced.
Can be reduced in size.

Also, the terminal plate portion 49 is inserted into the fitting holes 45 ₁ .
_In order to fit and fix them in the fittings 45 _1, ..., 45 ₂ ,.
9 are inserted, and connection terminals 42 ₁ ...
When a pressing force is applied to 2 ₂ ... And the connection terminal 43, a portion of the terminal plate portion 49 closer to the connection plate portion 50 is connected to the side opposite to the side on which the terminal plate portion 49 is continuously provided. Plate 5
A bending force acts in a direction in which the side end of the zero approaches the bobbin 35. However, the terminal plate portion 4 of the connecting plate portion 50
The side surface 50 a opposite to the side where the 9 is continuously provided is close to and opposed to the rib 62 protruding from the bobbin 35. Therefore, even if the bending force is applied, the connecting plate 50
The side surface 50a of the terminal plate 50 comes into contact with the rib 62 and is guided, and as shown in FIG. 15C, the terminal plate portion 49 is prevented from bending, and the terminal plate portion 49 is inserted into the fitting hole 45.
₁ ..., 45 ₂ ..., it can be allowed to fit to 46.

By the way, the fitting holes 45 ₁ ..., 45 ₂ .
The protrusions 5 are provided on both sides of the terminal plate portion 49 so as to bite into the inner surface of the terminal plate 6.
2 and 52 are projected, and the projections 52 and 52 are
5 ₁ ..., 45 ₂ ..., but it is of the bending force caused resistance to the pressing force is generated by the bite into the inner surface 46, the height of the ribs 62, protrusions 52, 52 engaging hole 45
₁ ..., 45 ₂ ..., which are set to be higher than the connecting plate portion 50 at the time of beginning to be inserted into the 46, when resistance to the pressing force is generated, connecting plate 50 rib 62 Lower position, the connecting plate 50 can be reliably guided by the ribs 62 and the terminal plate 49 can be more reliably prevented from being bent.
Connection work of the external conductors 63 _1, ..., 63 ₂ ,.

At the ends of the four external conductors 63 ₁ and the four external conductors 63 _2, female terminals 64 to which terminal plate portions 49 can be fitted are attached, respectively. 63 ₁ ... female terminal 64 ... is the is held in common in the synthetic resin terminal holder 65 _1, holding external lead wire 63 ₂ ... female terminal 64 ... is the, in common to the terminal holder ₆₅₂ made of synthetic resin because they are, by fitting to the terminal holder 65 _1, 65 ₂ of the bobbin 35, the connection terminals 42 ₁ ... external conductor, 4
2 ₂ ... the external conductors 63 ₁ ..., 63 ₂ ... can be easily and securely connected.

[0058] One end of the exciter coil 40 is connected to an external lead wire connection terminal 42 _1, the ground connection terminal 44 to which the other end of the exciter coil 40 is fusing connection
Is press-fitted into a press-fitting hole 48 provided in the stator core 32. Therefore, even if the exciter coil 40 is made of a magnet wire, the operation of peeling off the insulating film is unnecessary, and the ground connection end 4 of the exciter coil 40 is not required.
The connection to the 4 children can be easily performed, the wiring connection for grounding of the exciter coil 40, each of the external lead wire connection terminals 42 ₁ ..., 42 ₂ ... and the coils 37 to 40 to the connection terminals 43 Connection can be performed in the same manner as connection, and most of the wiring connection of the stator 30 can be performed mechanically and automatically.

Further, the ground connection terminal 44 is
8, a flat plate portion 56 in which the pin portion 55 is provided at right angles to the widthwise center of the inner end of the bobbin 35 along the radial direction, and a flat plate portion 56 on both sides of the pin portion 55. A pair of presser plates 57, 57, which are connected to the inner end and extend inward along the radial direction of the bobbin 35, and the exciter coil 40 can be connected by fusing. since after but connected to a right angle the fusing connected to the end is made of bent are connecting portion 58. in order to overlap on the flat plate portion 56, connection terminal 42 ₁ ... external conductor, 42 ₂ ... and connection terminals 43 Similarly,
The connection space 58 can be prevented from protruding from the stator 30 and the space for arranging the ground connection terminal 44 can be reduced. Moreover, by pressing the pair of pressing plate portions 57, 57 disposed on both sides of the pin portion 55, the pin portion 55 is stably pressed into the press-fitting hole 48 while preventing the pin portion 55 from being bent. Can be.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the appended claims. It is possible to do.

[0061]

As described above, according to the first aspect of the present invention, the connection of the coil to the external conductor connection terminal is facilitated, so that the connection operation is facilitated and the number of work steps is reduced. The arrangement space for the connection terminals can be reduced. Further, even if the stator has a relatively small diameter, it is easy to secure a space for disposing a plurality of fitting holes, and it can be effectively applied to a small-sized stator. Can be prevented as much as possible when the terminal plate is fitted.

According to the second aspect of the present invention, it is possible to more reliably prevent the terminal plate from being bent.

According to the third aspect of the present invention, it is possible to easily connect the exciter coil to the ground connection terminal, thereby facilitating the connection work and reducing the number of work steps.

Further, according to the fourth aspect of the present invention, the connection of the exciter coil to the ground connection terminal is facilitated, thereby facilitating the connection work and reducing the number of work steps. The arrangement space can be reduced. Further, the pin portion can be stably pressed into the press-fitting hole while preventing the pin portion from bending.

[Brief description of the drawings]

1 is a longitudinal sectional view of an outer rotor type multipolar generator, and is a sectional view taken along line 1-1 in FIG. 2;

FIG. 2 is a front view of the stator as viewed from the direction of arrows 2-2 in FIG. 1;

FIG. 3 is a rear view of the stator as viewed from the direction of arrows 3-3 in FIG. 1;

FIG. 4 is a view showing a state where a terminal holder is removed from FIG. 3;

FIG. 5 is an enlarged sectional view taken along line 5-5 of FIG. 3;

FIG. 6 is a connection circuit diagram of a coil.

FIG. 7 is a sectional view taken along the line 7-7 in FIG. 5;

FIG. 8 is a perspective view of a connection terminal for an external conductor.

FIG. 9 is an enlarged view of a main part of FIG. 2;

FIG. 10 is a longitudinal sectional view showing a state before bending a ground connection terminal attached to a stator core.

FIG. 11 is a sectional view taken along line 11-11 of FIG. 10;

FIG. 12 is a view taken in the direction of arrow 12 in FIG. 11;

FIG. 13 is a view of the terminal holder as viewed from a direction indicated by an arrow 13 in FIG. 5;

FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. 13 for explaining assembling of the female terminal to the terminal holder.

FIG. 15 is a diagram sequentially illustrating a process of assembling the connection terminals for external conductors to the stator.

FIG. 16 is a view corresponding to FIG. 15 without a rib;

[Explanation of symbols]

32 ... stator core 34 ... salient pole 35 ... bobbin 37, 38, 39 ... coil 40 ... exciter coil 42 ₁ , 42 ₂ ... connection terminal 45 ₁ , 45 _2. ..Mating hole 48 ... Press-fit hole 49 ... Terminal plate 50 ... Connecting plate 51 ... Coil connecting part 52 ... Protrusion 55 ... Pin 56 ... Plate 57 ... holding plate 58 ... connecting portion 58 62 ... ribs 63 _1, 63 ₂ ... outer conductor

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Michihiro Iida 1-4-1 Chuo, Wako-shi, Saitama Prefecture Inside Honda R & D Co., Ltd. (72) Inventor Minoru Tamura 1-4-1 Chuo, Wako-shi, Saitama Inside Honda R & D Co., Ltd. (72) Inventor Masafumi Nakamura 1-4-1 Chuo, Wako-shi, Saitama F-term inside Honda R & D Co., Ltd. 5H604 AA05 AA08 BB01 BB15 CC01 CC05 CC15 PB03 QB03 QB12 5H621 BB10 GA01 GA04 GB09 GB10 HH01

Claims (4)

[Claims] A plurality of coils (37, 38, 39, 4)
0) is wound around a large number of salient poles (34) provided on the outer periphery of the stator core (32) via a bobbin (35), and each coil (37) is wound along the radial direction of the stator core (32).
40), a plurality of fitting holes (45 ₁ , 45) provided in the bobbin (35) between both ends in the axial direction.
_2), a plurality of external lead wire connection terminals made of conductive metal (42 _1, 42 ₂₎ are respectively inserted, is fixed, the external lead wire connection terminal (42 _1, 42 ₂₎ one end to the external conductors of the ( 63 _1, 63 ₂₎ each external lead wire connection terminals with are connected (42 _1, 42 ₂₎ the other end to the coil of (37 to
In the outer rotor type multipolar generator stator to which the bobbin (35) is connected, the fitting hole (45 ₁ , 45 ₂ ) has a rectangular cross section that is long along the radial direction of the bobbin (35). circumferentially provided at a plurality of positions spaced, each external lead wire connection terminal (42 ₁ of the bobbin (35) Te,
42 ₂₎ is fitted into the external conductor (63 _1, 63 ₂₎ one end fitting hole to be connected to the (45 _1, 45 ₂₎ fitting hole (45 _1, 45 ₂ allowed protruding from) the fixed And a terminal plate portion (49) extending in the radial direction of the bobbin (35) and formed as a flat plate, and the terminal plate portion (49) on one side of an inner end portion of the bobbin (35) along the radial direction. A connecting plate portion (50) having the other end of the coil (3) connected at a right angle;
7 to 40) can be connected to the distal end by fusing and can be connected to the outer end of the connecting plate (50) at right angles before the fusing connection, but can be connected to the connecting plate after the fusing connection. (50) and a coil connection part (51) that is bent so as to overlap on the bobbin (3).
5) extending between the fitting holes (45 ₁ , 45 ₂ ) in the radial direction of the bobbin (35) and opposite to the terminal plate portion (49) of the connection plate portion (50). A plurality of ribs (62) proximate to and opposed to the side surface of the outer rotor type multipole generator. 2. On both sides of said terminal plate portion (49), projections (52) which bite into the inner surfaces of said fitting holes (45 ₁ , 45 ₂ ).
There are projected, the height of each rib (62), said projection (52) fitting hole (45 _1, 45 ₂₎ each connecting plate portion at the time of beginning to be inserted into (50) The stator for an outer rotor type multipolar generator according to claim 1, wherein the stator is set to be higher than the above. 3. A press-fit hole (48) is provided in said stator core (32), and said plurality of coils (37-40) are provided.
One end of the exciter coil (40) of the coupled the outside conductor connection terminal (42 _1), the exciter end of motor coil (40) is ground connection terminal (44) is to be fusing connection, the press fit 3. The stator according to claim 1, wherein the stator is press-fitted into the hole. 4. The ground connection terminal (44) is formed in a flat plate shape extending in a radial direction of the bobbin (35) with a pin portion (55) pressed into the press-fit hole (48). A flat plate portion (56) in which the pin portion (55) is continuously provided at a right angle at the center in the width direction of an inner end along the radial direction of the bobbin (35), and the flat plate portions on both sides of the pin portion (55). A pair of presser plates (57) connected to the inner end of the bobbin (35) and extending inward in the radial direction of the bobbin (35); and the other end of the exciter coil (40) fused to the distal end. A connection portion (58) that is connectable and is connected to the outer end of the flat plate portion (56) at a right angle before the fusing connection, but is bent to overlap the flat plate portion (56) after the fusing connection. 4. The method according to claim 3, comprising: Stator for Utarotor type multipolar generator.