JPS63107443A - Connection of ac generator coll with rectifier and others - Google Patents

Abstract

PURPOSE:To enable simply and securely connecting coil ends with other parts by assembling an output end of magneto coil and an input end of field coil on one terminal block and connecting them with a rectifier and a voltage regulator. CONSTITUTION:An output end of magneto coil 7 and an input end of field coil 9 are assembled on one terminal block 17 and electrically connected via respective conductive plates 18, 18' with an input end 26 of rectifier 12 and an output end of voltage regulator 13, respectively. If the output end of magneto coil 7 and the input end of field coil 9 are connected and secured to the terminal block 17, respective output ends of these coils are passed through a coil end insertion hole 18c passing a machine frame 3 and the terminal block 17, in serted into each cylindrical terminal 18b and thereafter fastened by a nut member 22.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is applicable to AC generators used in vehicles, etc. The present invention relates to an f1 machine, and more specifically, relates to a method of connecting a coil end of a generator coil, a field coil, etc. of an alternating current generator to a rectifier, etc.

[Conventional technology]

AC generators generally used for vehicles include a generating coil,
In order to facilitate electrical connections between field coils, rectifiers, voltage regulators, etc., and to make the entire device more compact,
For example, as disclosed in Japanese Unexamined Patent Publication No. 58-172962, a rectifier and a voltage regulator are integrated into the main body of a generator, and these electric devices are connected to the coil ends of the generator coil, field coil, etc. The parts were connected by soldering or screwing.

[Problem that the invention seeks to solve]

However, according to such a connection method, the following points need to be improved. In other words, when connecting the end of the generator coil to another rectifier, etc. by soldering, the ease of disassembly and assembly, which is most important when dealing with service parts for products, is inferior. When connecting to a rectifier or the like, the work of attaching the ends of the coils of the generator coil, field coil, etc. to the terminals is complicated, and the connection tends to be unreliable.

The present invention has been made in view of the above points, and its purpose is to easily and reliably connect the coil ends to other parts, and to improve the ease of disassembling and assembling generator parts. An object of the present invention is to provide a method for connecting a coil end to a rectifier or the like, which allows the coil ends to be connected to a rectifier or the like.

[Means for solving problems]

In order to achieve the above object, the present invention connects the coil of an alternator and a rectifier etc. by the following connection method. In order to facilitate understanding of the content, a connection method according to the present invention will be explained with reference to the reference numerals used in the embodiments shown in FIGS. 1 to 3. Specifically, the present invention relates to an alternator that includes a rectifier 12 that rectifies an alternating current induced in a generator coil 7 of the alternator, and a voltage regulator 13 that controls an excitation current flowing through a field coil 9. First, a terminal block 17 is attached to a part 3 of the alternator body, which is made up of an insulating substrate 17a and a plurality of conductive plates 18, 18' disposed insulated from each other. In addition, the conductive plate 18.18
The input terminal 26 of the rectifier 12 and the output terminals 27a, 27b' of the voltage regulator 13 and the tightening member 23 are tightened and fixed to each end of the rectifier 12.

On the other hand, the other end of each conductive plate 18, 18' is connected to the terminal block 1.
A thread groove 20 is provided on the outer periphery of the cylindrical terminal portion 18b as a flexible cylindrical terminal portion 18b protruding from the generator body 3 and the terminal block 17. A plurality of coil end insertion holes 18c communicating with the portion 18b are provided,
The output end 24 of the generator coil 7 and the input end 25a of the field coil 9 are inserted into these coil end insertion holes 18c.

25b respectively, and introduce the output side end 24 of the generator coil 7 into the cylindrical terminal portion 18b of the conductive plate 18 to which the input terminal 26 of the rectifier 12 is tightened and fixed. The input end portions 25a and 25b of the field coil 9 are introduced into the cylindrical terminal portion 18b of the conductive plate 18' to which the output terminals 27a and 27b of the voltage regulator 13 are fastened and fixed. Then, by tightening the outer periphery of these cylindrical terminal portions 18b with a nut member 22 and crimping and fixing the generating coil 7 and the field coil 9 to the cylindrical terminal portion 18b, the generating coil 7, the rectifier 12, and the field coil are connected. 9 and voltage regulator 13 are connected via respective conductive plates 18,18'.

Note that the nut member 22 of the present invention includes not only a normal nut but also a cap-shaped member as in the embodiment shown in FIG.

[Effect]

According to the above connection method, the output end 24 of the power generation coil 7 and the input end 25a of the field coil 9.

25b are collected in one terminal block 17, and connected to the input terminal 26 of the rectifier 12 and the output ends 27a, 27 of the voltage regulator 17.
b can be electrically connected to each of the conductive plates 18 and 18' through the respective conductive plates 18 and 18'. In the present invention, in particular, the output end 24 of the generator coil 7 and the input ends 25a, 25b of the field coil 9
When connecting and fixing to the terminal block 17, the coil output end 24 and input ends 25a, 2'5b are inserted into the coil end insertion hole 18c that passes through the body 3 and the terminal block 17, respectively.
, and then introduce it into each cylindrical terminal part 18b, and then tighten the nut member 22. Therefore, the coil end can be soldered as in the conventional method, or the coil end can be screwed to the terminal. This eliminates the need to connect the coil end to the terminal block easily and reliably. Further, the parts can be easily disassembled and assembled.

〔Example〕

An embodiment of the present invention will be explained based on FIGS. 1 to 4.

FIG. 1 is a longitudinal sectional view of a brushless vehicle generator (inductor type AC generator) which is an embodiment of the present invention, and FIG.
3 is a sectional view of the main parts of this embodiment. In the figure, 1 is the rotating shaft of the generator, 2 and 3 are a pair of generator covers, and the rotating shaft 1 The generator cover 2.3 is supported via a bearing 4, and a rotor core 6 having a pair of claw magnetic poles 5 is press-fitted onto the rotating shaft 1. The generator cover 2.3 is made of a non-magnetic metal such as aluminum. and generator cover 2
, 3 has a stator core 8 around which a power generating coil 7 is wound.
are fitted concentrically and are fastened to the generators 2 and 3 by bolts 16. Further, a field coil 9 is suspended and fixed to the inner peripheral portion of the stator core 8 so as to be located between the magnetic poles of the rotor core 6.

10 forcibly sucks in air from outside the generator and then discharges it (the arrow in Figure 1 is the flow direction of this air).
The fan 10 is fixedly arranged on both sides of the rotor core 6.

Reference numeral 11 denotes a case for storing electronic components arranged on the outside of the side surface of the generator cover 3, and a generating coil 7 is placed inside the storage case 11.
a rectifier diode 12 that rectifies the output current (three phases) of the
A voltage regulator 13 for adjusting the voltage of the field coil 9 is provided, and the rectifier 12° voltage regulator 13 is installed in the storage case 11.
The resin 14 injected into the case 11 after being placed inside the case 11
sealed by. This storage case 11 is tightly secured to the generator cover 3 with screws 15 as shown in FIG. 2.

-17 is fastened with screws 28 between the field coil 9 and the voltage regulator 13 and near the lower part of the storage case 11 on the outer surface of -3. The terminal block 17 is an insulating board 17a
Inside, five conductive plates 18 and 18' are arranged side by side insulated from each other, and one end of each conductive plate 18 and 18' is provided with a screw hole 18a for attaching a terminal, and the other end is provided with a cylindrical hole. The cylindrical terminal portion 18b is formed in a protruding manner, and this cylindrical terminal portion 18b protrudes from the surface of the terminal block 17.
As shown in the partial perspective view of Figure (a), there are grooves 1 in the wall thickness.
A suitable number of notches 9 are formed at equal intervals, and a screw groove 20 for tightening the cap is carved on the outer periphery. Cylindrical terminal part 1
A cap 2 having a nut portion 21 is provided in the thread groove 20 of 8b.
2 is screwed into the screw hole 18a, and a screw 23 is screwed into the screw hole 18a. The terminal board 17a also has coil end insertion holes 18 at positions corresponding to the respective cylindrical terminal portions 18b.
A protrusion hole 18d for extending the insertion hole 18c is provided on the back surface of the substrate 17a. Projection hole 1
8d is fitted into the fitting hole 3a provided in the generator cover 3 when the terminal block 17 is attached to the outer surface of the generator cover 3.

By having the above-described structure, the terminal block 17 has the coil ends 24 of the generator coil 7 and the field coil 9,
25a, 25b, the input terminal 26 of the three-phase rectifier diode 12, and the output terminals 27a, 27b of the voltage regulator 13 are connected as follows. That is, the output side end portion 24 of each three-phase power generation coil 7 is inserted into the coil insertion hole 18c and the corresponding cylindrical terminal portion 18b of each conductive plate 18, and the cap 22 is screwed into the cylindrical terminal portion 18b. It is crimped and fixed by doing this. Further, the input terminal 26 of each rectifier diode 12 is fixed by a screw 23 in a mounting screw hole 18a on the other end side of the conductive plate 18 to which the output side end 24 of one generating coil is fixed by pressure.

With such a connection structure, the output end 24 of the power generating coil 7 and the corresponding input terminal 26 of the rectifier diode 12 of each phase are connected via each conductive plate 18.

In addition, one of the remaining conductive plates 18' has a (+) excitation terminal (input end) 2 of the field coil 9 connected to its cylindrical terminal portion 18b.
5a is inserted, and the other is the cylindrical terminal portion 18b.
The (-) excitation terminal (input end) 25b of the field coil 9 is inserted into the cylindrical terminal portion 18b, and by screwing the cap 22 onto the cylindrical terminal portion 18b, the excitation terminals 25a, 25b are connected to the cylindrical terminal portion 18b. It is crimped and fixed. Also, an excitation terminal 25a.

Mounting hole 18 on the other end side of each conductive plate 18' to which 25b is fixed.
a, the (+) output terminal 27a, (-) output terminal 27b of the voltage regulator 13 corresponding to these terminals 25a, 25b
are respectively tightened and fixed via screws 23. In this way, the (+) voltage of the voltage regulator 13 is connected via the conductive plate 18'.
Output terminal 27a and (+) excitation terminal 25a of field coil 9
However, the (-) output terminal 27b and the (-) field coil 9
Excitation terminal 25b is connected.

FIGS. 4(a) to 4(c) show a specific example of crimping and fixing the above-mentioned generator coil end 24 and field coil ends 25a, 25b to the cylindrical terminal part 18b. When performing this, the coil end 24 is
, 25a, and 25b are each inserted with a diameter slightly smaller than the inner diameter of the cylindrical terminal portion 18b. Then the coil ends 24, 25
The portions of a and 25b that protrude from the cylindrical terminal portion 18b are cut off (FIG. 4(b)), and finally the cylindrical terminal portion 18b is tightened with the cap 22. By tightening the cap 22, since the cylindrical terminal portion 18b has the groove 19, the cylindrical terminal portion 18b is bent toward the inner diameter side, and the coil ends 24, 25a, 2
5b (Fig. 4(c)).

According to this embodiment, the power generating coil 7 is attached to the terminal block 17.
each output end 24 of and the excitation terminal 25a of the field coil 9,
25b without soldering.

Moreover, there is no need to screw the coil ends 24, 25a, and 25b, and the coil connection work can be performed by simply inserting the coil end directly into the cylindrical terminal part 18b and tightening and fixing the cap 22. This makes it easy to connect the coils, and also enables reliable connection with easy disassembly and assembly, which improves the quality of this type of generator and also improves service parts support such as parts replacement. .

Although this embodiment has been described with respect to a brushless generator, it can also be applied to an alternating current generator with brushes.

〔Effect of the invention〕

As described above, according to the present invention, the coil ends of the generator coil, field coil, etc. can be easily and reliably connected to other parts such as the rectifier, and the ease of disassembling and assembling the generator parts is improved. can be done.

[Brief explanation of the drawing]

Fig. 1 is a vertical i-plane view showing an embodiment of a vehicle AC generator to which the coil connection method of the present invention is applied, Fig. 2 is a side view of the above embodiment, and Fig. 3 is a coil connection of the above embodiment. FIGS. 4(a) to 4(Q) are partial perspective views showing the working steps of coil connection in the above embodiment. 3... Generator body part (cover), 7... Generator coil, 9... Field coil, 12... Rectifier, 13...
... Voltage regulator, 17... Terminal block, 17a... Insulating board, 18° 18'... Conductive plate, 18b... Cylindrical terminal portion, 18c... Coil end insertion hole, 20. ...Thread groove, 22...Nut member (cap), 23...Tightening member, 24...Generating coil output side end, 25a, 25
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Claims (1)

[Claims] 1. In an alternator equipped with a rectifier that rectifies the alternating current induced in the generator coil of the alternator and a voltage regulator that controls the excitation current flowing through the field coil, one of the body of the alternator A terminal block consisting of a plurality of conductive plates arranged insulated from each other on an insulating substrate is attached to the section, and an input terminal of the rectifier and an output terminal of the voltage regulator are fastened to one end of each of the conductive plates with a tightening member. On the other hand, the other end of each conductive plate is made to protrude from the terminal block to form a flexible cylindrical terminal part, and a screw groove is provided on the outer periphery of the cylindrical terminal part, and the other end of each of the conductive plates is made to protrude from the terminal block, and a screw groove is provided on the outer periphery of the cylindrical terminal part. The terminal block is provided with a plurality of coil end insertion holes that communicate with each of the cylindrical terminal parts, and the output side end of the generator coil and the input side end of the field coil are inserted into these coil end insertion holes. The output side end of the generator coil is introduced into the cylindrical terminal part of the conductive plate to which the input terminal of the rectifier is fastened and fixed, and the input side end of the field coil is inserted into the cylindrical terminal part of the conductive plate. The output terminal of the voltage regulator is introduced into the cylindrical terminal portion of the conductive plate to which it is tightened and fixed, and the outer periphery of these cylindrical terminal portions is tightened with a nut member to connect the generating coil and the field coil to the cylindrical terminal. A method for connecting a coil and a rectifier of an alternating current generator, characterized in that the generating coil and the rectifier, and the field coil and the voltage regulator are connected through each conductive plate by crimping and fixing the coil and the rectifier to each other.