JPH11332157A - Stator for generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To neatly and simply draw leads out by simple connecting work, moreover from the ends of a plurality of windings wound on the salient pole parts of a stator core respectively. SOLUTION: In the stator of a generator, having a plurality of kinds of windings on each salient pole part 2 of its salient pole type stator core 1, to which an insulating cover 3 made of resin is fitted, a terminal seat 5 on which a plurality of male terminals 4 to which the ends of individual windings are to be connected are arranged concentrically is provided in the insulating cover section, and a lead 6 is drawn out from each winding by inserting into a specified male terminal 4 a female terminal 7 fitted to the tip of the lead.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a generator stator.

[0002]

2. Description of the Related Art In a portable engine generator, a three-phase AC main winding, an auxiliary winding, and a DC winding are mounted on a stator of the generator so that both AC (commercial) and DC power sources can be obtained. ,
A plurality of types of windings such as an excitation winding for engine ignition are wound.

Conventionally, in a stator of a generator having a plurality of kinds of windings wound thereon, terminals of the windings are connected to a nearby terminal portion, and leads are connected from the respective terminals. Each is drawn out.

[0004]

The problem to be solved is that a plurality of types of windings such as a three-phase AC main winding, an auxiliary winding, a DC winding, and an excitation winding for engine ignition are wound. If the terminals of each winding are wrapped around the nearby terminals and the leads are pulled out from each terminal, the wiring of the leads will be disjointed and the wiring work will be complicated. It is becoming.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a stator of a generator in which a plurality of types of windings are wound around each salient pole portion of a salient pole type stator core provided with a resin insulating cover. Orderly pull out the lead from the end of the wire,
In addition, in order to make it easy to pull out by simple connection work, a terminal seat is provided on the insulating cover part where multiple male terminals to which the terminals of each winding are connected are centrally arranged and attached to the tip of the lead The female terminal is inserted into a predetermined male terminal, and leads are pulled out from each winding.

[0006]

1 and 2 show an inverter-type magnet generator which rectifies high output power obtained by increasing the speed of an engine, adjusts the voltage by a regulator, and converts it to AC by an inverter to obtain a commercial power supply. 2 shows a stator in the machine.

The stator of the generator has a three-phase main winding MW on each of a plurality of radially provided salient pole portions 2 of a salient pole type stator core 1 on which a resin insulating cover 3 is mounted. , An auxiliary winding SUB, a DC winding DC, and an excitation winding EXT for engine ignition.

In this case, one salient pole portion is connected to the insulating cover 3.
The auxiliary winding SUB is wound on the upper part thereof and the excitation winding EXT is wound on the lower part thereof to form a unit. Then, DC windings DC are wound around the salient pole portions on both sides, respectively. Furthermore, in each salient pole part on both outer sides,
The main winding MW is sequentially wound around each of the remaining salient pole portions so that the beginning -1, -1, -1 and the end -6, -6, -6 of the three-phase AC main winding MW come. ing.

In the present invention, in particular, in the present invention, a plurality of male terminals 4 to which terminals of each of the windings MW, SUB, DC and EXT are respectively connected to a portion of the insulating cover 3.
Are provided intensively, and the female terminals 7 attached to the tips of the leads 6 are respectively connected to predetermined male terminals 4.
, And by connecting the coupler, the lead 6 can be easily pulled out from each winding (see FIGS. 7 and 8).

Here, in particular, each winding MW, SUB, D
In order to minimize the routing of the terminals of C and EXT, the terminal seat 5 is provided near the salient pole portion 2 around which the start and end portions of each of the windings MW, SUB, DC and EXT are wound. It is provided.

In the figure, B / L is a terminal to which the end of the exciting winding EXT is connected, O is a terminal to which the end of the auxiliary winding SUB is connected, GR is a terminal to which the starting end of the auxiliary winding SUB is connected,
BR1 is a terminal to which the beginning of the DC winding DC is connected, BR2
Is a terminal to which the end of the DC winding DC is connected, R, R, and R are terminals to which each output terminal of the three-phase main winding MW is connected, and M is a common end to which the starting end of each main winding MW is connected. Terminals are shown.

Salient pole portion 2 on which exciting winding EXT is wound
A GND terminal 8 to which the start end of the excitation EXT wire is connected is attached to the base of the wire.

The electric circuit shown in FIG. 3 shows the installation state of each of the windings MW, SUB, DC, EXT wound around the stator of the generator and their respective external lead terminals.

Each male terminal 4 provided on the terminal seat 5 has a size corresponding to the thickness of the wire in each corresponding winding and a shape corresponding to the number of wires to be connected.

FIG. 4 shows a male terminal 41 for R and BR to which each terminal of a main winding MW and a DC winding DC using thick wires is connected. FIG. 5 shows O, GR, and B / L male terminals 42 to which the terminals of the auxiliary winding SUM and the excitation winding EXT using thin wires are connected. Also,
FIG. 6 shows the M terminals 43 to which the starting ends of the three-phase main windings MW (three) are commonly connected.

As shown in FIGS. 7 to 9, each of the male terminals 4 (41 to 43) is covered with an insulating cover so that the terminal portion and the rear end portion to which the terminal of the winding is soldered are exposed. 3 is inserted and attached to the resin portion.

FIG. 7 shows a state in which a large female terminal 71 attached to the tip of the lead 6 is inserted into the male terminal 41. FIG. 8 shows a state in which a small female terminal 72 attached to the tip of the lead 6 is inserted into the male terminal 42.

At the rear end of the male terminals 41 and 42, there is provided a cutout 9 into which the tip of a soldering iron is fitted.
At the time of soldering the end of the winding, the notch 9 allows the soldering iron to be positioned so that the preheating can be accurately performed.

At the rear end of the male terminal 43, there is formed a cut groove 10 for drawing in and pulling out three thick strands of the main winding MW. Therefore, even if the distance between the adjacent BR male terminal 41 is small, the main winding MW
The three thick wires can be soldered without contacting the adjacent terminals.

The insulating cover 3 at each of the male terminals 41 to 43
A groove 11 is formed in a portion to be embedded in the resin, and each male terminal 41 when the resin in the embedded portion is softened due to excessive heating of the male terminals 41 to 43 during soldering. 43 are suppressed by the concave grooves 11.

The insulating cover 3 has a wall 3 for preventing the varnish from wrapping around the terminal seat 5 when applying an insulating varnish to each winding wound around the salient pole portion 2.
1 is formed.

In winding the windings around the salient pole portion 2 according to the present invention, as shown in FIG. 10, the windings are wound uniformly at the upper part and at the lower part, as shown in FIG. Winding is performed so that the number of turns gradually decreases.

By winding the windings on the salient pole portions 2 while adjusting the number of turns in this manner, the gap between the windings wound on the respective salient pole portions 2 provided radially is substantially reduced. It can be kept constant, and good insulation between the windings can be maintained.

[0024]

As described above, according to the present invention, in a stator of a generator in which a plurality of types of windings are wound around each salient pole portion of a salient pole type stator core provided with a resin insulating cover, Provide a terminal seat in which a plurality of male terminals to which the terminals of each winding are connected in a concentrated manner on the insulating cover portion, insert a female terminal attached to the tip of the lead into a predetermined male terminal, and connect a lead from each winding. Withdrawal is done,
There is an advantage that the leads can be easily pulled out from the ends of the windings in an orderly and simple connection operation.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a stator of a generator according to the present invention.

FIG. 2 is a rear view of a stator of the generator according to the embodiment.

FIG. 3 is an electric circuit diagram showing installation states of various windings wound around a stator of the generator and respective external extraction terminals in the embodiment.

FIG. 4 is a front view showing one shape of a plurality of terminals provided on a terminal seat of a stator of the generator in the embodiment.

FIG. 5 is a front view showing another shape of a plurality of terminals provided on a terminal seat of a stator of the generator in the embodiment.

FIG. 6 is a front view showing still another shape of a plurality of terminals provided on a terminal seat of a stator of the generator in the embodiment.

FIG. 7 is a partial cross-sectional view showing a connection state of a lead and a coil element wire to one terminal provided on a terminal seat of a stator of the generator in the embodiment.

FIG. 8 is a partial cross-sectional view showing a connection state of leads and coil wires to other terminals provided on a terminal seat of a stator of the generator according to the embodiment.

FIG. 9 is a partial cross-sectional view showing a connection state of a coil wire to still another terminal provided on a terminal seat of a stator of the generator in the embodiment.

FIG. 10 is a diagram showing a winding state of windings wound around salient pole portions of a stator of the generator in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stator core 2 Salient pole part 3 Insulating cover 4 Male terminal 5 Terminal seat 6 Lead 7 Female terminal 9 Notch 11 Concave groove 31 Wall

Claims (6)

[Claims] In a stator of a generator in which a plurality of types of windings are wound around salient pole portions of a salient pole type stator core to which a resin insulating cover is attached, a terminal of each winding is arranged on the insulating cover portion. A terminal seat where a plurality of male terminals to be connected are arranged in a concentrated manner is provided, and the female terminal attached to the tip of the lead is inserted into a predetermined male terminal to draw out the lead from each winding. The generator stator. 2. An excitation winding for engine ignition is wound around one salient pole portion, a DC winding is wound around salient pole portions on both sides thereof, and an AC winding is wound around each salient pole portion on both outer sides thereof. The beginning of the line,
An AC winding is wound around each of the remaining salient poles so that the end of the salient pole comes, and then the salient poles around which the starting and ending portions of the excitation winding, the DC winding, and the AC winding are wound 2. The generator stator according to claim 1, wherein a terminal seat is provided near the portion. 3. The terminal seat according to claim 1, wherein male terminals having a size corresponding to the thickness of the wires in the various windings and a shape corresponding to the number of wires to be connected are provided on the terminal seat. The generator stator according to the description. 4. The tip of a soldering iron is attached to the rear end of a male terminal which is inserted and attached to the resin portion of the insulating cover so that the terminal and the rear end to which the terminal of the winding is soldered are exposed. The stator according to claim 1, wherein a notch is provided for fitting. 5. The stator according to claim 1, wherein a concave groove is provided in a portion of the male terminal inserted into the resin of the insulating cover. 6. The stator according to claim 1, wherein a wall for preventing the insulating varnish from wrapping around the terminal seat portion is formed on the insulating cover portion.