JPH10146000A - Magnet generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a magnet generator in which the reliability can be enhanced by decreasing manual operation as much as possible in the termination work of a power generation coil. SOLUTION: A terminal holder 12 is fixed to the empty pole part 2b of a stator core. The terminal holder 12 comprises a resin terminal holder body 14 wound around the empty pole part 2b and coupled in loop with end coupler parts 13a, 13b, terminals 15, 16 supported by the terminal holder body 14 while being insulated, and lead wire grasping parts 18, 19 provided integrally with the terminal holder body 14. The terminals 15, 16 are connected the end wires 3a, 4a of power generation coils 3, 4 and the conductor end parts 6a, 9a of lead wires 6, 9 which are then grasped at the lead wire grasping parts 18, 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnet generator, and more particularly to a magnet generator suitable for use in vehicles such as motorcycles, outboard motors, snowmobiles, etc., equipped with an internal combustion engine having a non-contact ignition device. Things.

[0002]

2. Description of the Related Art A magnet generator of this kind includes a rotor having a permanent magnet on the inner periphery of a flywheel, and a stator arranged in the rotor such that the outer periphery faces the magnetic pole of the permanent magnet. The stator has a structure in which a power generation coil is wound around a plurality of poles protruding from an outer periphery of a stator core.

FIGS. 6A to 6D show the structure of a conventional stator 1 of a magnet generator, wherein FIG. 6A is a front view of the stator 1 and FIG. Seen stator 1
(C) is a side view showing the connection state of the terminal wire of the coil to the lead wire, and (D) is a cross-sectional view of the pole portion of the stator 1 shown in (A) around which the power generation coil is wound. is there. In the stator 1, one of the poles 2 a and 2 c on both sides of the free pole 2 b among the poles 2 a to 2 f protruding from the outer periphery of the stator core 2.
The power generating coil 3 on the winding start side is wound around the bobbin 17, and the power generating coil 4 on the other end is wound on the other end 2 c via the bobbin 17.
The crossover line 5 has a structure arranged across the base side of the empty pole portion 2b.

On the power generation coil 3 side on the winding start side, the winding start terminal wire 3a of the power generation coil 3 on the winding start side is entangled with the conductor end 6a of the lead wire 6 and soldered and connected to the winding start side connection portion. The winding start side connection portion 7 is attached to the outer periphery of the power generation coil 3 on the winding start side via an insulating paper, and is fixed with a tape 8.

[0005] On the power generation coil 4 side on the winding end side, the winding end terminal wire 4a of the power generation coil 4 on the winding end side is entangled with the conductor end 9a of the lead wire 9 and soldered and connected to the winding end connection section. 10, and the winding end side connection portion 10
Is attached to the outer periphery of the power generation coil 4 on the winding end side via insulating paper, and is tied and fixed with a tape 11.

Although not shown, for example, a coil for a lamp, a coil for charging, and the like are wound around the pole portions 2d, 2e, and 2f. 2g and 2h are stator cores 2
Is a mounting portion for mounting to an internal combustion engine or the like (not shown).

[0007]

However, in the magnet generator having such a structure, there is a problem that too much manual work is required for the terminal treatment of the power generation coils 3 and 4, a large variation in finish, and a lack of reliability. . There is also a problem that causes an increase in cost.

[0008] It is an object of the present invention to provide a magnet generator capable of improving reliability by minimizing manual work for terminal processing of a generating coil.

Another object of the present invention is to provide a magnet generator in which the connection of the terminal wire of the power generation coil and the connection of the end of the lead wire can be easily performed individually.

[0010] It is an object of the present invention to reduce as much as possible manual work in terminal processing of each of the generating coils on the winding start side and winding end side,
An object of the present invention is to provide a magnet generator capable of improving reliability.

Another object of the present invention is to easily and individually connect the terminal wires of the power generating coils on the winding start side and the winding end side and the ends of the lead wires individually connected thereto. It is to provide a magnet generator.

Another object of the present invention is to provide a magnet generator which can prevent the terminal holder main body from changing its mounting posture around the free pole portion.

[0013]

According to the present invention, there is provided a rotor having a permanent magnet on the inner periphery of a flywheel, and a stator arranged in the rotor such that the outer periphery faces the magnetic pole of the permanent magnet. The stator improves a magnet generator in which a power generation coil is wound around a plurality of poles protruding from an outer periphery of a stator core.

In the magnet generator according to the present invention, a terminal holder is mounted on a vacant pole portion of the stator core, and the terminal holder is wound around the outer periphery of the vacant pole portion and connected in a loop at a terminal connector portion. A resin terminal holder body,
The terminal is composed of a terminal insulated and supported by the terminal holder body, and a lead wire grip portion provided integrally with the terminal holder body. The terminal is connected to the terminal wire of the power generation coil and the end of the lead wire. The lead wire is gripped by the wire gripper.

The terminal holder body made of resin, which is wound around the outer periphery of the vacant pole portion and connected in a loop at the terminal connector portion, the terminal insulated and supported by the terminal holder body, and the terminal holder body are integrated. When a terminal holder composed of a lead wire gripping portion provided on the terminal is used, a terminal wire of the power generation coil and an end of the lead wire are connected to the terminal, and the lead wire is gripped by the lead wire gripping portion. It is possible to reduce manual work in terminal processing as much as possible and improve reliability. In particular, since the terminal holder body is attached to the vacant pole portion at the terminal portion at the end thereof, the connection operation can be easily performed. Since the terminal is preliminarily insulated and supported by the terminal holder body, the terminal wire of the power generation coil can be easily connected to the end of the lead wire using the terminal. Further, with such a configuration, it is possible to effectively use the empty pole portion.

In this case, the terminal includes first and second terminal portions and a connecting portion connecting these terminal portions to each other, and the connecting portion is provided in a state where the first and second terminal portions are exposed. It is preferable that the terminal holder body is insulated and supported, the terminal wire of the power generation coil is connected to the first terminal portion, and the end of the lead wire is connected to the second terminal portion.

As described above, when the terminal wire of the power generation coil and the end of the lead wire are separately connected to the first and second terminal portions, the work of connecting the terminal wire of the power generation coil and the end of the lead wire is facilitated. This can be performed, and workability is improved for automation of connection, which is convenient.

According to the present invention, there is further provided a rotor having a permanent magnet on the inner periphery of a flywheel, and a stator arranged in the rotor so that the outer periphery faces the magnetic pole of the permanent magnet. The power generation coil on the winding start side is wound around one of the pole portions on both sides of the vacant pole portion of the plurality of pole portions protruding from the outer periphery of the iron core, and is wound around the other pole portion. It is an improvement of the magnet generator in which the end power generation coil is wound.

In the magnet generator according to the present invention, a terminal holder is mounted on the vacant pole portion, and the terminal holder is wound around the outer periphery of the vacant pole portion, and is formed of a resin-made resin connected in a loop at the terminal connector portion. Terminals that are insulated and supported by the terminal holder body on the side corresponding to each generating coil on both sides of the vacant pole part, and lead wire grips that are integrally provided on the terminal holder body corresponding to these terminals The terminal wire of each generating coil on the corresponding side and the end of each lead wire are connected to each terminal, and the corresponding lead wire is gripped by the lead wire gripping part. .

In this manner, the resin terminal holder main body wound around the outer periphery of the free pole portion and connected in a loop at the terminal connector portion, and the terminal holder main body on both sides of the free pole portion corresponding to the respective power generating coils. Terminals each insulated and supported on
Using a terminal holder composed of lead wire gripping parts provided integrally with the terminal holder body corresponding to these terminals, the terminal wire of each generating coil and the end of each lead wire on the corresponding side for each terminal. Is connected, and the lead wire on the corresponding side is gripped by the lead wire gripping part, so that manual work for terminal processing of the power generation coil can be reduced as much as possible, and reliability can be improved. In particular, since the terminal holder body is attached to the vacant pole portion at the terminal portion at the end thereof, the connection operation can be easily performed. Since the terminals of the terminal holder body are insulated and supported in advance on the sides corresponding to the respective power generating coils on both sides of the empty pole portion, the terminal wires and the respective lead wires of the corresponding power generating coils on the corresponding side are utilized by using these terminals. Can be easily and individually connected to the ends. Further, with such a configuration, it is possible to effectively use the empty pole portion.

In this case, each terminal includes first and second terminal portions and a connecting portion connecting these terminal portions to each other.
The connecting portion is insulated and supported by the terminal holder body with the first and second terminal portions exposed, and the winding corresponding to the power generating coil on the winding start side is wound around the first terminal portion. At the beginning, the terminal wire is connected, the end of the lead wire is connected to the second terminal part, and the terminal corresponding to the power generation coil on the winding end side is connected to the terminal terminal of the power generation coil at the first terminal part, It is preferable to connect the end of the lead wire to the second terminal.

In the terminal corresponding to the power generation coil on the winding start side, a terminal wire for starting the power generation coil is connected to the first terminal portion, and an end of the lead wire is connected to the second terminal portion.
In the terminal corresponding to the power generation coil on the winding end side, when the winding end terminal wire of the power generation coil is connected to the first terminal portion and the end of the lead wire is connected to the second terminal portion, the power generation coil on the winding start side is connected. The connection work with the end of the lead wire and the connection work between the power generation coil on the winding end side and the end of the lead wire can be easily performed individually, and workability is further improved for automation of connection, convenient.

It is preferable that the terminal holder body is provided with a detent part to be engaged with the detent part of the empty pole part.

With this arrangement, the positions of the terminals around the vacant pole portion are fixed and do not move, so that the connection work of each line is facilitated and the connection position is fixed, so that the connection can be easily automated. Can be. In addition, even when the magnet generator is used, the terminal holder main body does not move around the free pole portion, so that unnecessary force does not act on the connection portion, and occurrence of connection failure can be prevented.

[0025]

FIG. 1 is a perspective view showing a main part of a stator according to a first embodiment of a magnet generator according to the present invention, and FIG. 2 is a cross-sectional view of an empty pole portion shown in FIG. It is.

In the stator 1 of the magnet generator of the present embodiment, one of the poles 2a and 2c on both sides of the free pole 2b among the plurality of poles protruding from the outer periphery of the stator core 2 is provided. The power generation coil 3 on the winding start side is wound around the pole part 2a, and the power generation coil 4 on the winding end side is wound around the other pole part 2c. These generating coils 3 and 4 are
Are connected in series. Such generating coils 3 and 4
Is used, for example, as an exciter coil.

A terminal holder 12 is mounted on the free pole 2b. The terminal holder 12 is wound around the outer periphery of the vacant pole portion 2b and is connected to the terminal holder portions 13a and 13b in a loop form in a loop. C-shaped terminals 15 and 16 which are insulated and supported by the terminal holder main body 14 on the side corresponding to 4 respectively, and C-shaped leads provided integrally with the terminal holder main body 14 corresponding to the terminals 15 and 16 respectively. It is composed of wire gripping portions 18 and 19 and a rotation preventing portion 21 formed of a hole engaged with a rotation preventing portion 20 formed of a projection protruding from the empty pole portion 2b.

The terminal 15 on one side of the terminal holder 12 is connected to the terminal wire 3a at the beginning of winding of the power generating coil 3 at the opposite side and the conductor end 6a of the lead wire 6. In this case, the terminal wire 3a at the beginning of winding is wrapped around the C-shaped terminal 15, and the conductor end 6a of the lead wire 6 is inserted into the C-shaped terminal 15 and soldered together. The lead wire 6 is held by being fitted into a C-shaped lead wire holding portion 18. Similarly, the terminal 16 of the terminal holder 12 on the opposite side is connected to the winding end terminal wire 4 a of the power generation coil 4 on the opposite winding end side and the conductor end 9 a of the lead wire 9. Also in this case, the end-of-winding terminal wire 4a is connected to the C-shaped terminal 16 while the conductor end 9a of the lead wire 9 is inserted into the C-shaped terminal 16 and soldered together. . Lead wire 9
Are fitted and held in a C-shaped lead wire holding portion 19.

The terminal holder body 14 made of resin and wound around the outer periphery of the vacant pole portion 2b and connected in a loop by the terminal connectors 13a and 13b as described above, and the terminal 15 insulated and supported by the terminal holder body 14 , 16 and lead wire grippers 18, 19 provided integrally with the terminal holder body 14.
Using the terminal holder 12 composed of
6, the terminal wires 3a, 4a of the power generating coils 3, 4 and the conductor ends 6a, 9a of the lead wires 6, 9 are connected, and the lead wire holding portions 18, 19 grip the lead wires 6, 9 to generate power. Manual work for terminal treatment of the coils 3 and 4 can be reduced as much as possible, and reliability can be improved. For example, in a state where the winding start terminal wire 3a and the winding end terminal wire 4a are wrapped around the C-shaped terminals 15 and 16, respectively, the lead wires 6 and 6 are provided by a robot.
9 is inserted into C-shaped lead wire holding portions 18 and 19 and fixed, and the conductor ends 6a and 9a of the lead wires 6 and 9 are inserted into C-shaped terminals 15 and 16 to automate the soldering operation. be able to. Attachment of the terminal holder body 14 to the vacant pole portion 2b is performed by connecting the terminal portions 13a and 13b at the ends thereof, so that the connecting operation can be easily performed. Since the terminals 15 and 16 are insulated and supported on the terminal holder body 14 in advance, the terminals 15 and 16 are
The connection between the terminal wires 3a, 4a of the power generation coils 3, 4 and the conductor ends 6a, 9a of the lead wires 6, 9 can be easily performed by using the cable 16. In particular, if the terminals 15 and 16 and the lead wire gripping portions 18 and 19 are provided on the terminal holder body 14 in advance on the sides corresponding to the respective generating coils 3 and 4 on both sides of the empty pole portion 2b, these terminals 15 , 16, the connection between the terminal wires 3a, 4a of the corresponding generating coils 3, 4 and the conductor ends 6a, 9a of the lead wires 6, 9 can be easily performed individually. Also, with such a configuration,
The free pole portion 2b can be used effectively.

Further, since the terminal holder body 14 is provided with the detent part 21 which is engaged with the detent part 20 of the free pole part 2b, the terminals 15, 16 around the free pole part 2b are provided.
Is fixed and the position is fixed, the work of connecting the wires 3a and 3b and the conductor ends 6a and 9a is facilitated, and the connection position is fixed, so that the connection can be easily automated. In addition, even when the magnet generator is used, the terminal holder main body 14 does not move around the free pole portion 2b, so that unnecessary force does not act on the connection portion, and occurrence of connection failure can be prevented.

FIG. 3 is a cross-sectional view of a free pole portion of a stator according to a second embodiment of the magnet generator according to the present invention.

In the stator 1 of the magnet generator according to the present embodiment, the manner of preventing the terminal holder 12 from rotating around the free pole portion 2b is different from that of the first embodiment. In the present example, the detent portion 20 'formed of a concave portion formed in the free pole portion 2b.
Then, the terminal holder 12 is prevented from rotating with respect to the free pole portion 2b by engaging a rotation preventing portion 21 'formed of a projection provided on the terminal holder body 14.
Other configurations are the same as in the first example.

With such a configuration, the same effect as in the first example can be obtained.

FIG. 4 is a cross-sectional view of a vacant pole portion of a stator according to a third embodiment of the magnet generator according to the present invention.

In the stator 1 of the magnet generator according to the present embodiment, the terminal holders 12 are provided on both sides of the free pole portion 2b, corresponding to the generating coils 3 and 4 on the winding start side and the winding end side.
Is characterized in that each of the terminals 15 and 16 provided in the above has the following configuration.

That is, the terminal 15 includes first and second C-shaped terminal portions 15a and 15b and a connecting portion 15c for connecting the terminal portions 15a and 15b to each other. With the terminal portions 15a and 15b exposed,
5c are insulated and supported by the terminal holder body 14, respectively. Similarly, the terminal 16 includes first and second terminal portions 16a and 16b and a connecting portion 16c that connects the terminal portions 16a and 16b to each other.
With the terminal portions 16a and 16b of the connecting portion 16 exposed,
c are insulated and supported by the terminal holder body 14, respectively.

At the terminal 15 corresponding to the power generating coil 3 on the winding start side, the power generating coil 3 is connected to a C-shaped first terminal portion 15a.
At the beginning of the winding of the lead wire 3a, and is connected by soldering with the terminal wire 3a tangled, and with the conductor end 6a of the lead wire 6 inserted into the C-shaped second terminal portion 15b. The lead wire 6 is held by being fitted into a C-shaped lead wire holding portion 18. Similarly, at the terminal 16 corresponding to the power generation coil 4 on the winding end side, the terminal wire 4a of the power generation coil 4 is soldered and connected to the first terminal portion 16a in a state where the terminal wire 4a is wound, and is connected to the second terminal portion 16b. Conductor end 9a of lead wire 9
Are connected by soldering. The lead wire 9 is fitted and held in a C-shaped lead wire holding portion 19. Other configurations are the same as in the first example.

As described above, in the terminal 15 corresponding to the power generating coil 3 on the winding start side, the power generating coil 3 is connected to the first terminal portion 15a.
, The terminal end 3a of the lead wire 6 is connected to the second terminal 15b, and the terminal 16 corresponding to the power generation coil 4 on the winding end side is connected to the first terminal 16a. When the winding end terminal wire 4a of the coil 4 is connected and the conductor end 9a of the lead wire 9 is connected to the second terminal portion 16b,
The connection between the power generation coil 3 on the winding start side and the end of the lead wire 6 and the connection between the power generation coil 4 on the winding end and the end of the lead wire 9 can be easily and individually performed and connected. The workability is further improved for the automation of the system, which is convenient. For example, winding start terminal line 3a, winding end terminal line 4
a, the lead wires 6, 9 are inserted into and fixed to the C-shaped lead wire gripping portions 18, 19 by a robot in a state where the lead wires 6 are tied to the C-shaped first terminal portions 15a, 16a, respectively. Are inserted into the C-shaped second terminal portions 15b, 16b, and the terminal wires 3a, 4a of the generating coils 3, 4 are inserted into the first terminal portions 15a, 16a.
And the work of soldering the conductor ends 6a, 9a of the lead wires 6, 9 to the second terminal portions 15b, 16b can be automated.

Further, since the terminal holder main body 14 is provided with the detent part 21 which is engaged with the detent part 20 of the free pole part 2b, the terminals 15, 16 around the free pole part 2b are provided.
Is fixed and the position is fixed, the work of connecting the wires 3a and 3b and the conductor ends 6a and 9a is facilitated, and the connection position is fixed, so that the connection can be easily automated. In addition, even when the magnet generator is used, the terminal holder main body 14 does not move around the free pole portion 2b, so that unnecessary force does not act on the connection portion, and occurrence of connection failure can be prevented.

FIG. 5 is a cross-sectional view of a vacant pole portion of a stator according to a fourth embodiment of the magnet generator according to the present invention.

In the stator 1 of the magnet generator according to the present embodiment, the way of preventing the terminal holder 12 from rotating around the free pole portion 2b is different from that of the third embodiment. In the present example, the detent portion 20 'formed of a concave portion formed in the free pole portion 2b.
Then, the terminal holder 12 is prevented from rotating with respect to the free pole portion 2b by engaging a rotation preventing portion 21 'formed of a projection provided on the terminal holder body 14.
Other configurations are the same as in the first example.

With such a configuration, the same effect as in the third example can be obtained.

[0043]

In the magnet generator according to the present invention, a resin terminal holder body wound around the outer periphery of the vacant pole portion and connected in a loop at the terminal connector portion, and is insulated and supported by the terminal holder body. Using a terminal holder composed of a terminal and a lead wire gripping part provided integrally with the terminal holder body, connecting the terminal wire of the power generation coil and the end of the lead wire to the terminal, Since the lead wire is gripped by hand, it is possible to reduce as much as possible manual work for terminal treatment of the power generation coil and improve reliability. In particular, since the terminal holder body is attached to the vacant pole portion at the terminal portion at the end thereof, the connection operation can be easily performed. Since the terminal is preliminarily insulated and supported by the terminal holder body, the terminal wire of the power generation coil can be easily connected to the end of the lead wire using the terminal. Further, with such a configuration, it is possible to effectively use the empty pole portion.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a stator according to a first example of an embodiment of a magnet generator according to the present invention.

FIG. 2 is a cross-sectional view of a free pole portion of FIG.

FIG. 3 is a transverse sectional view of a free pole portion of a stator according to a second example of the embodiment of the magnet generator according to the present invention.

FIG. 4 is a transverse cross-sectional view of a vacant pole portion of a stator according to a third example of the embodiment of the magnet generator according to the present invention.

FIG. 5 is a cross-sectional view of a free pole portion of a stator according to a fourth example of the embodiment of the magnet generator according to the present invention.

6A and 6B show a configuration of a stator in a conventional magnet generator, in which FIG. 6A is a front view of the stator, FIG. 6B is a side view of the stator viewed from the free pole portion side, and FIG. Side view showing connection state of terminal wire of coil, (D)
FIG. 3 is a cross-sectional view of a pole portion of the stator 1 shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stator 2 Stator iron core 2a-2f Pole part 2b Free pole part 2g, 2h Attachment part 3 Winding start side coil 3a Terminal wire 4 Winding end side power generation coil 4a Terminal wire 5 Crossover wire 6,9 Lead wire 6a, 9a Conductor end 7 Winding start connection 8,11 Tape 10 Winding end connection 12 Terminal holder 13a, 13b Connector 14 Terminal holder body 15 Terminal 15a, 15b First and second terminal 15c Connection 16 terminal 16a, 16b First and second terminal portions 16c Connecting portion 17 Bobbin 18, 19 Lead wire gripping portion 20, 20 ', 21, 21' Non-rotating portion

Claims (5)

[Claims] 1. A rotor having a permanent magnet on an inner periphery of a flywheel, and a stator arranged in the rotor so that an outer periphery faces a magnetic pole of the permanent magnet, wherein the stator has a stator core. In a magnet generator configured by winding a generating coil around a plurality of poles protruding from the outer periphery, a terminal holder is mounted on a vacant pole part of the stator core, and the terminal holder is provided with the vacant pole part. A resin terminal holder body wound around the outer periphery of the terminal holder and connected in a loop at a terminal connector portion, a terminal insulated and supported by the terminal holder body, and a lead wire grip provided integrally with the terminal holder body. A terminal, a terminal wire of the power generating coil and an end of a lead wire are connected to the terminal, and the lead wire is gripped by the lead wire gripping portion. Generator. 2. The terminal according to claim 1, wherein the terminal includes first and second terminal portions and a connecting portion for connecting the terminal portions to each other, and the first and second terminal portions are exposed in a state where the first and second terminal portions are exposed. A connection portion configured to be insulated and supported by the terminal holder body;
2. The magnet generator according to claim 1, wherein a terminal wire of the power generating coil is connected to a terminal portion of the magnet generator, and an end of a lead wire is connected to the second terminal portion. 3. 3. A rotor provided with a permanent magnet on an inner periphery of a flywheel, and a stator arranged in the rotor such that an outer periphery thereof faces a magnetic pole of the permanent magnet, wherein the stator has a stator core. The power generation coil on the winding start side is wound around one of the pole portions on both sides of the vacant pole portion of the plurality of pole portions projecting from the outer periphery, and the winding end side is wound on the other pole portion. In the magnet generator around which the generating coil is wound, a terminal holder is mounted on the empty pole portion, and the terminal holder is wound around the outer periphery of the empty pole portion and connected in a loop at the terminal connector portion at the end. A resin terminal holder body,
Terminals respectively insulated and supported by the terminal holder main body on both sides of the free pole part corresponding to the respective power generating coils, and lead wire gripping parts provided integrally with the terminal holder main body corresponding to these terminals, respectively. Consists of
Magnet power generation, wherein a terminal wire of each generating coil on the corresponding side and an end of each lead wire are connected to each terminal, and the lead wire on the corresponding side is gripped by the lead wire gripping part. Machine. 4. Each of the terminals includes first and second terminal portions and a connecting portion connecting these terminal portions to each other, and the first and second terminal portions are exposed. The connecting portion is configured to be insulated and supported by the terminal holder main body, respectively, and at the terminal corresponding to the power generation coil on the winding start side, a winding start terminal wire of the power generation coil is connected to the first terminal portion, The end of the lead wire is connected to the second terminal portion, and at the terminal corresponding to the power generation coil on the winding end side, the winding end terminal wire of the power generation coil is connected to the first terminal portion; 4. The magnet generator according to claim 3, wherein an end of the lead wire is connected to the terminal of the magnet generator. 5. The magnet according to claim 1, wherein the terminal holder main body is provided with a detent part engaged with the detent part of the empty pole part. Generator.