JPH1127886A - Stator of dynamo-electric machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stator which is capable of high output by materializing the high-density winding and the space saving of a winding end. SOLUTION: This stator possesses windings 3 and 4, which are connected in parallel in each unit of magnetic pole teeth of an iron core 1, and an insulator 2 which insulates the stator iron core 1 from the windings 3 and 4, and is equipped with a barrier rib 5 which isolates the fellow windings in each unit of the magnetic pole teeth. Hereby, the windings 3 and 4 can be wound, drawn up individually within the winding space made by the barrier rib 5 of the insulator 2d, so that the necessity to bundle the fellow copper windings is eliminated, and a high-density winding and space saving of the winding end become possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator for a rotating electric machine (hereinafter referred to as a "motor") used for various industrial equipments.

[0002]

2. Description of the Related Art In recent years, there has been an increasing need to increase the density of windings and to save space at the ends of windings in order to reduce the size and improve the performance of motors. In particular, servo motors used in robots and the like use permanent magnets with extremely high magnetic flux density for the rotor of the motor, and use stator windings in order to respond to speeding up, space saving and high output of the robot. It is necessary to increase the density.

As a technique for realizing the high-density winding, as shown in FIG. 3, a high-density winding is formed by aligning and winding a winding 33 on an insulator 32 covering a divided iron core 31. Both the space saving of the winding end portion is enabled at the same time (for example, see Japanese Patent Application Laid-Open No. 7-7875).

[0004]

However, in order to realize a high output by using a permanent magnet having the same high magnetic flux density in the conventional configuration, it is necessary to increase the sectional area of the winding and to flow a large current. . However, in order to wind a single copper wire around the pole teeth of an iron core, the copper wire was too thick to be wound easily and was difficult to align. Also, if the copper wire is cut in half and the two are bundled together and rolled, this time, each copper wire will be twisted and cannot be aligned and rolled. In either case,
There was a problem that it was not possible to save the space between the high-density winding and the winding end.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a high-output stator capable of realizing high-density winding and space saving at a winding end.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a stator core, a winding connected in parallel in a pole tooth unit of the stator core, a stator core and the winding. And an insulator that insulates the windings of the pole teeth from each other.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to solve the above-mentioned problems, the present invention provides a stator core, a winding connected in parallel for each pole tooth of the stator core, and an insulation between the stator core and the winding. And a stator for the rotating electrical machine, wherein the insulator includes a partition separating the windings of the pole teeth unit.

In this manner, the windings connected in parallel on a pole tooth basis can be individually aligned and wound in the winding space formed by the partition walls of the insulator. For this reason, there is no need to bundle the copper wires, and twisting does not occur in the copper wires. Therefore, even in a stator that obtains high output, high-density winding and space saving of the winding end can be achieved.

[0009]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a stator core for each pole tooth, reference numeral 2 denotes an insulator for electrically insulating the stator core 1 from windings, and reference numerals 3 and 4 denote copper wires wound around the stator core 1. The winding 5 is a partition formed integrally with a part of the insulator 2. Winding 3 and the winding 4 is isolated by a partition wall 5, each other winding start after winding, are connected in parallel by connecting each other winding end.

As described above, the windings 3 and 4 connected in parallel on a pole-to-teeth basis can be individually aligned and wound in the winding space formed by the partition 5 of the insulator 2, so that the copper wire is used. There is no need to bundle together, and high-density winding and space saving of the winding end can be achieved.

[0012] The stator core 1 of the pole teeth unit on which the winding is applied is
After joining a predetermined number in a ring as shown in FIG. 2, each winding is subjected to a predetermined connection to complete the stator.

In this embodiment, the description has been made with the winding made of two copper wires and one partition, but an arbitrary number of windings and partition may be provided. Further, although the partition wall of the present embodiment is shown only on the side surface of the insulator, it may be provided on the upper surface side, or may be provided only on the upper surface side.

[0014]

As is apparent from the description of the above embodiment, according to the present invention, the windings connected in parallel on a pole-to-teeth basis are separated by partition walls provided on the insulator without being twisted into individual winding spaces. Since it can be wound, it can be wound in a line. As a result, high-density windings and space savings at the ends of the windings can be achieved, and a stator corresponding to high output can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view of a stator core provided with a winding in units of pole teeth according to an embodiment of the present invention.

FIG. 2 is a plan cross-sectional view of an annularly joined stator.

FIG. 3 is a cross-sectional plan view of a conventional stator core having a winding of a pole tooth unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stator core 2 Insulator 3, 4 Winding 5 Partition wall

Claims (1)

[Claims] 1. A stator core, a winding connected in parallel in a pole tooth unit of the stator core, and an insulator for insulating the stator core and the winding, wherein the insulator includes the pole teeth. A stator of a rotating electrical machine with a partition separating the windings of the unit.