JPS59222051A - Rotary electric machine - Google Patents

Abstract

PURPOSE:To facilitate a winding work in a rotary electric machine by differentiating the shape of slots of an armature core at the phases, and differentiating the positions of the slots on the bottom at the phases. CONSTITUTION:A slot Dv, to which the conductor of an armature winding of V-phase of U-, V- and W-phases is inserted, is formed of lateral wide slots d1 formed at the position nearest to the inner periphery of a yoke Y and lateral narrow slots d2 opened on the outer periphery of a core C extending radially from the center of the slot in T shape. A slot Du, to which the conductor of U- phase is inserted, is formed of a slot of substantially ?-shape shallower than the slot Dv, and a slot Dw, to which the conductor of W-phase is inserted, is formed of a slot of flat ?-shape as compared than the slot Dv. When armature coil is wound, the conductors L are inserted in order of the slots Dv, Du and Dw.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rotating electric machine equipped with a multiphase armature winding having distributed winding.

Prior Art In multiphase rotating electric machines, such as multiphase AC magnet generators, the number of slots in the armature core is increased in order to bring the magnetomotive force distribution closer to a sine wave.
2-slot (- or higher) armature core numbers are shown. When a J5 electric machine is used, the armature winding is distributed winding. Figure 1 shows an 8-pole magnet rotor R and a 24ffl (24
3-phase magnet power generation + fiG
The magnet rotor R consists of a flywheel formed in an approximately cup shape and a permanent magnet M fixed to the inner circumference of the flywheel. In this example, four magnets M are These magnets are arranged at equal intervals and are magnetized into 8 poles.Boss B is placed on the medium heat on the bottom wall of the flywheel.
is installed, and this boss is fitted onto the output shaft of a drive source such as an internal combustion engine. On the other hand, the armature A has a thrower 1 in which 24 salient pole parts P1...P24 are projected from the annular yoke Y in the spreading direction, and numbers 1 to 24 are indicated between these projection part sets η. ~D.

By having a stator core C formed with D, . . . and inserting the winding conductors of each phase into slots with predetermined numbers,
Three-phase electrical component windings are wound: U, V, and W. Figure 2 shows this armature winding with 3 coarse metal knots 21i? This is a winding diagram showing the winding distribution in the case of winding with i-distributed winding and star-shaped connection. -I] is the slot number for identifying the number. 13. The above-mentioned electronic element 8 is fixed to the rotor 1 in the stator holder 4 (not shown) with screws and the like.

In the above-mentioned conventional rotating electric machine, the throwers 1 to D of the armature core are all formed in the same shape, and it is troublesome to identify the slots into which the winding conductors of each phase are inserted, making the winding work difficult. There were drawbacks that made it difficult to work with. In this type of conventional rotating electric machine, the bottom part 1)a of the throwers 1 to D into which the windings of each phase are inserted is
Since the positions of the electric wires in the t direction were the same, when the armature winding is wound in multiple layers, if the lower layer winding is twisted, the upper layer winding will also be affected by the distortion. This has the disadvantage of making winding work difficult. Furthermore, it is desirable to be able to freely set the cross-sectional area of the winding wire due to the space factor of the winding, etc.1. I)lJ
If the shapes of the slots are all the same as shown in "-", the pole pitch and number of poles of the armature core and the culm with the cross-sectional area of the slots are determined. 0. Purpose of the Throat Invention The purpose of the present invention is to easily perform the work of dividing the armature winding and to increase the degree of freedom in setting the cross-sectional area of the throat. The purpose is to provide a magnet generator that can be used.

The present defense is a rotating electrical machine equipped with an electromembrane formed by inserting a winding conductor into a slot of an electric metal core and distributing multiphase armature windings, and in the present invention. The shape of the thrower i into which the winding conductor of each phase is inserted is different from the shape of the thrower i into which the winding conductor of other phases is inserted, so that the armature winding of each phase is The bottom position FJ
be different from the position of the bottom of the slot into which the armature windings of other phases are inserted.

By changing the shape of the strut 1 to a rough angle as described above, it is possible to easily identify the thrower 1- into which the winding conductor of each phase is inserted by 1Φ. ] If the positions of the bottoms of the blocks are roughly different, the windings of each phase can be wound without being affected by the windings of other phases.
, winding work can be done easily. Furthermore, the above J:
By changing the shape of the slot to a rough angle, it is possible to increase the degree of freedom in setting the thrower I and the cross-sectional area, thereby increasing the degree of freedom in the winding stage 8I.

Example The present invention will be described in detail below with reference to the accompanying drawings.

FIG. 3 shows a 24-pole armature core C used in one embodiment of the present invention, so the armature core is made of 33-phase all-node two-layer distributed winding as shown in FIG. The winding is wound. In this example, J5 is U.

Thrower 1-DV (sororami~claw number 2.5.8゜11
．． 14.17.2C) a3 and 23) are a wide groove portion d1 formed at a position closest to the inner periphery of the yoke Y, and a narrow groove portion d1 extending radially from the center of the groove portion and opening to the outer periphery of the iron core C. The groove portion d2 is formed in a T-shaped shape.

In addition, slots hDu (slot numbers 3.6.9.12, .15.18.216 and 2.
4) is a "7" shaped part shallower than the throwers 1 to D above.
1-1 to '4L, thrower l-DW into which the W-phase winding conductor is inserted (slot number 1.4.7.10.13,
16.19aj and 22) consist of a flat U-shaped groove that is even shallower than the thrower hI)v. Thus, in the present invention, the three-phase thrower l-D u to D
The shape of W is made to vary in q ways, and the depth of each? If Iy, then Ute thrower (- bottom Ll a u to D
aWO) If the distance to the radial direction is different, it is U.

The pole pitch and pole arc (ratio of 41 times the outer circumferential length of core C to the width of 8 strokes) of this lifting platform ♀ core C are set exactly the same as those of the conventional one shown in Fig. 1. . Note that 1-1 is a mounting hole (-Ji) provided in the yoke Y for inserting a screw for fixing the armature A (not shown) to the yoke Y.

When winding the electric wire coil around the above armature core, first insert the winding conductor into the deepest throat 1~l)v.
Wind the phase armature winding. Next, insert the winding conductor into the second deepest throat 1-Du and wind the U-phase armature winding, then insert the winding conductor into the shallowest throat 1-Dw. Wind the W-phase armature winding. By winding this J, Unidenzo-r winding 7 times, the winding that was wound first will not affect the winding work of the winding that is wound later, and the winding conductor Since the thrower 1 to be inserted can be easily identified, the work for winding the first winding can be done easily. Furthermore, since there is no restriction that the cross-sectional area of each thrower 1- be equal,
The cross-sectional area of the thrower 1 can be freely set, and the cross-sectional area of the thrower 1 can be freely set. The li plane (^ can also be made wider than the conventional J. Therefore, the degree of freedom in the winding and piping arrangement i1 can be increased compared to the conventional one.

The above-mentioned armature is installed (for example, in the case of an internal combustion engine) and fixed to the J part, and is mounted on the output shaft of the engine,
The 8-pole magnet rotor shown in the figure is removed to form a magnet generator.

J3 In the above explanation, taking 1.1 magnet photoelectric type as an example, the present invention can be applied to synchronous power generation other than magnet valve type 1 type (in addition, the present invention can also be applied to synchronous electric power generation). In the invention, the number of slots is arbitrary.

The above embodiment C takes as an example the case where three coarse metal knot two-layer distributed winding is performed, but the present invention can also be applied to the case where short M winding or single layer winding is performed. The multiphase armature windings can also be connected in a ring.

Effects of Explanation As described above, according to the present invention, the shape of the slot of the fFIi 11 child core is made different from the rough angle (J, the position of the bottom of the throat 1 is made different from the phase I port) Therefore, the winding work can be easily done.Also, by making the shape of the slot rough, it is possible to increase the degree of freedom in setting the area of the J2 mill. The degree of freedom in winding design can be improved.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an example of a conventional rotation heavy state, and Fig. 2 is a winding in which the armature winding is wound on a 24-slot heavy state iron core with 3 coarse metal knots and 2 layers of distributed winding. A winding diagram showing wire distribution, and FIG. 3 is a front view of an armature core used in an embodiment of the present invention. A...Electric force, C. Electric 1 explosive core, Du to Qw, Slot, Qau to Qaw...
... Winding conductor, "... flywheel, M... magnet, tumor 3 ] two faces, 'I: N mountain t, [E fsu1 (spontaneous) 11 ((Japanese E) 9 (1- March 12th 1hn Director General of each village Japanese Indication of 1 matter 1, 'I Application No. 58-95304? Title of invention 111 I'1 of the person who removes the rotating electrical machine Relationship 11 ■Mu' [Applicant (134
) Kokusan Denki Co., Ltd. I 4 agent 1i Bridge 4Ti131, Minato-ku, Tokyo Hanging 6g Bunzan Building 6th floor Matsuki 1°l ii'L 1'! Office (fli story 637-
ξi 781) 5 Supplement 11 - Glue/J Part 111 of the invention specification
2 slots 1 ton or more... 1] There is a lightning winding on the iron core/+r i =\
be done. 5-1 onward-1- Old I

Claims (1)

[Claims] The slot into which the winding conductor of each phase is inserted is installed in a rotating electrical machine equipped with an armature made by inserting a winding 1i1 conductor into the slot of the armature core and making 15 turns of multiphase armature winding. ]
The shape of the slot is different from the shape of the slot into which the winding conductor of the other phase is inserted, and the position of the bottom of the throat 1 through which the armature winding of each phase is inserted is made different from the shape of the slot into which the winding conductor of the other phase is inserted. A rotating electric machine characterized in that the position of the bottom of the slot into which the winding is inserted is different.