JP2001112204A - Winding structure for rotary machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a winding structure for a ring-like core in which the ring- like core, windings, insulating members, and lead wires are made of materials having heat resistance of about 200 deg.C or higher. SOLUTION: A winding structure for a rotary machine is constituted so that a ring-like stator 1 may be used under a temperature condition of about 200 deg.C or higher by making the insulating members 6, windings 5, and lead wires 7 of the stator 1 of materials having heat resistance (about 200 deg.C or higher) and constituting the stator 1 in a mechanical structure using no adhesive.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding structure for a rotating machine, and more particularly to a rotating machine such as a motor or a resolver which has a heat resistance of 200 ° C. or more and can be used at high temperatures. Related to new improvements.

[0002]

2. Description of the Related Art Although this type of conventional winding structure for a rotating machine is not shown, for example, a stator winding provided on a ring-shaped stator is made of a magnet wire coated with polyester. Used, between the annular stator and the stator winding, an insulating member made of glass-filled nylon is provided, and a lead wire connected to the stator winding is coated with ethylene tetrafluoroethylene. Had been.

[0003]

The conventional winding structure of a rotating machine has the following problems because it is configured as described above. That is, the magnet wire coated with polyester constituting the stator winding has a heat resistance temperature of + 155 ° C., the heat resistance temperature of the glass-filled nylon constituting the insulating member is also + 155 ° C., and ethylene tetrafluoroethylene constituting the covering of the lead wire. Has a heat-resistant temperature of + 150 ° C., and cannot be used under temperature conditions requiring specifications of 200 ° C. or more, and it has been extremely difficult to expand the operating temperature range.

[0004] The present invention has been made to solve the above problems, and in particular, each component has a heat resistance of 200 ° C or more, and can be used at a conventional high temperature of 150 ° C or more. It is an object of the present invention to provide a winding structure of a rotating machine having the above configuration.

[0005]

According to the present invention, there is provided a winding structure of a rotating machine in which a winding is provided in each slot of a ring-shaped core through an insulating member. , Polybutylene sulphite, polyphenylene sulphite, epoxy resin powder coating or ceramic molded product, the winding is a polyimide copper wire, polyester imide copper wire, polyamide imide copper wire, ceramic copper wire , Ceramic lead coated copper wire, and the lead wire connected to the winding is a polytetrafluoroethylene coated copper wire or a polytetrafluoroethylene coated copper wire. Further, the annular core is integrally laminated by any of caulking, welding, screwing, and pinning. A configuration, also, the annular core has a structure which is the stator, also the annular core is a structure which is the rotor.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the winding structure of a rotating machine according to the present invention will be described below with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a ring-shaped core as a ring-shaped stator formed by laminating a plurality of core pieces 2 having a ring-like plate shape in the axial direction. The salient poles 3 and the slots 4 are arranged alternately in the circumferential direction.

A winding 5 is formed in each of the slots 4 via an insulating member 6 made of a ring-shaped insulating cap or the like, and a lead wire 7 is connected to the winding 5. , A rotation detector (resolver, synchro, etc.) or a stator body 10 (rotor is also possible) such as a motor. Although not shown, for example, the stator body 10 is provided with a rotatable rotor including only a core having no winding, and the rotor and the stator body 10 constitute the above-described resolver or motor. I have.

In order to laminate the plurality of core pieces 2 and integrate them, instead of using an adhesive as in the prior art, the annular core 1 is integrated by using caulking, side welding, pins, etc. to raise the temperature. In order to prevent lamination destruction by heat, the heat resistance is improved.

The winding 5 is made of a polyamide-imide copper wire (AIW) and has a heat resistant temperature of + 200 ° C. or higher, and a polyesterimide copper wire or a polyamide-imide copper wire having a heat resistant temperature of + 200 ° C.
200 ° C. or higher, a magnet wire made of any one of a ceramic copper wire or a ceramic coated copper wire and a heat-resistant temperature of + 200 ° C. or higher.
The surface of the stator winding 5 is coated with a high-temperature varnish or a silicon-based heat-resistant (+ 200 ° C. or higher) paint.

The insulating member 6 is made of glass of 10 to 30%.
Polybutylene sulphide (PBT) contained has a heat distortion temperature of + 190 ° C or more, and glass polyphenylene sulphide (PPS) containing 25 to 30% has a heat distortion temperature of + 260 ° C or more. Heat-resistant powder coating of 200 ° C or higher by coating a heat-resistant powder coating on the surface of the epoxy resin base material, or ceramic molded directly into the shape of an insulating cap. ing.

The lead wire 7 is made of a polytetrafluoroethylene (trade name: Teflon) -coated copper wire or a polytetrafluoroethylene-coated copper wire.
Heat resistance temperature of 260 ° C or higher for FE (polytetrafluoroethylene) electric wire, 260 ° C or higher for PFA (perfluoroalkoxy) electric wire, 260 ° C for FEP (fluorinated ethylene propylene) electric wire
Any of the above is adopted. In the above-described embodiment, the case of the laminated type stator has been described. However, a well-known sintered integral ring-shaped core (not shown) may be used. Also,
It goes without saying that the present invention can be applied not only to the rotation detector but also to a stator or a rotor such as a motor.

[0012]

Since the winding structure of the rotating machine according to the present invention is constructed as described above, the following effects can be obtained. That is, since the laminated structure of the annular core, the windings, the lead wires, and the insulating members are all made of a heat-resistant material of about 200 ° C. or higher, high temperatures (about 200 ° C.) which could not be installed conventionally. It is possible to operate even under the above environment, and the application range of the resolver, the motor and the like can be greatly expanded.

[Brief description of the drawings]

FIG. 1 is a plan view showing a winding structure of a rotating machine according to the present invention.

FIG. 2 is a front half sectional view of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Loop core 4 Slot 5 Winding 6 Insulating member 7 Lead wire

Claims (5)

[Claims] An insulating member is provided in each slot (4) of the annular core (1).
In the winding structure of a rotating machine provided with a winding (5) via (6), the insulating member (6) is made of polybutylene sulphite, polyphenylene sulphite, epoxy resin powder coating and ceramic molding. Product, wherein the winding (5) is made of any one of a polyimide copper wire, a polyesterimide copper wire, a polyamideimide copper wire, a ceramic copper wire, and a ceramic coated copper wire. Winding structure of rotating machine. 2. A lead wire (7) connected to the winding (5).
The winding structure of a rotating machine according to claim 1, wherein the wire is made of a polytetrafluoroethylene-coated copper wire or a polytetrafluoroethylene-coated copper wire. 3. The winding structure for a rotating machine according to claim 1, wherein said annular core (1) is integrally laminated by any one of caulking, welding, screwing, and pinning. . 4. The winding structure for a rotating machine according to claim 1, wherein said annular core (1) is a stator. 5. The winding structure for a rotating machine according to claim 1, wherein the annular core (1) is a rotor.