CN203352326U

CN203352326U - Stator coil formed by parallel winding of three ultrathin pure mica conducting wires

Info

Publication number: CN203352326U
Application number: CN 201320326850
Authority: CN
Inventors: 庄伟�; 徐雪权
Original assignee: Shanghai Electric Group Shanghai Electric Machinery Co Ltd
Current assignee: Shanghai Electric Group Shanghai Electric Machinery Co Ltd
Priority date: 2013-06-07
Filing date: 2013-06-07
Publication date: 2013-12-18
Anticipated expiration: 2023-06-07

Abstract

The utility model discloses a stator coil formed by parallel winding of three ultrathin pure mica conducting wires. The stator coil comprises two straight line parts, four corner parts and two end parts. In a thickness direction of the two straight line parts, a first gasket is embedded between the top winding and the second top winding and a first gasket is embedded between the bottom winding and the second bottom winding. Length and width of the first gaskets are respectively corresponding to the length and width of the straight line parts. In a length direction of the two straight line parts, a plurality of polyester film adhesive tapes wind the periphery of the cross section of the stator coil at intervals of an effective range L1. Second gaskets are embedded among every two of the three windings in a width direction of the four corner parts. Length of the second gaskets is 150 mm and width of the second gaskets is corresponding to the thickness of the corner parts. Within a length range of the second gaskets, a plurality of polyester film adhesive tapes wind the periphery of the cross section of the stator coil at intervals of an effective range L2.

Description

The thin pure mica wire of a kind of three Gent and around stator coil

Technical field

The utility model relates to a kind of stator coil, be specifically related to the thin pure mica wire of a kind of three Gent and around stator coil.

Background technology

The larger motor for electric current, for the ease of coiling, shaping and the rule of coil, generally adopt the less multiple conducting wires in cross section to combine coiling, as adopt the thin pure mica wire of three Gents and around stator coil.The thin pure mica wire of existing three Gent and around stator coil, owing to not adopting effective technological measure, after coil molding straight line portion and corner there will be concavo-convex, arch upward, not straight, overproof, the phenomenons such as rollover, overlapping, displacement, make the coil insulation damage and cause turn-to-turn short circuit, be difficult to repair, and be difficult to carry out the manufacturing procedures such as follow-up binding, turn-to-turn gel and dipping lacquer, coil is scrapped.

The utility model content

The purpose of this utility model is to overcome the defect of prior art, provide the thin pure mica wire of a kind of three Gent and around stator coil, it can effectively avoid the stator coil after moulding insulation harm to occur and cause turn-to-turn short circuit, has greatly reduced the learies of coil.

The purpose of this utility model be achieved in that the thin pure mica wire of a kind of three Gent and around stator coil, comprise two straight line portioies, four corner portion and two ends, wherein, the going up row and time upper row's turn-to-turn most, descend row and time lower row's turn-to-turn to be lined with respectively the length of a length and width and straight line portion and width the first liner one to one most of the thickness direction of described two straight line portioies, and along the length direction of described two straight line portioies at interval of a coverage L1 along the wrapped some circle polyester film adhesive tapes of the periphery of the cross section of stator coil; It is the second liner that 150mm, width are corresponding with the thickness of corner that three row turn-to-turns of the Width of described four corners are lined with respectively a length, and in the length range of described the second liner at interval of a coverage L2 along the wrapped some circle polyester film adhesive tapes of the periphery of the cross section of stator coil.

The above-mentioned thin pure mica wire of three Gents and around stator coil, it is characterized in that described L1=100mm.

The above-mentioned thin pure mica wire of three Gents and around stator coil, wherein, described L2=15mm.

The above-mentioned thin pure mica wire of three Gents and around stator coil, wherein, the wrapped number of turns of described polyester film adhesive tape is a circle half.

The above-mentioned thin pure mica wire of three Gents and around stator coil, wherein, described the first liner and the second liner are the soft composite insulating foil of the thick polyester film and polyester fibre non woven fabric of 0.2mm.

The thin pure mica wire of three Gent of the present utility model and around the technical scheme of stator coil, coil directly to part on row with time on row's turn-to-turn, descend most row and time lower row's turn-to-turn to be lined with respectively first liner, and be spaced a distance with regard to a wrapped adhesive tape along the length direction of straight line portion, and be lined with respectively second liner at three row turn-to-turns of the corner of coil, and in the length range of the second liner at interval of a coverage with regard to a wrapped adhesive tape, the stator coil that can effectively eliminate after moulding occurs concavo-convex, arch upward, not straight, overproof, rollover, overlapping, the phenomenons such as displacement, avoided the stator coil after the moulding insulation harm to occur and cause turn-to-turn short circuit, greatly reduced the learies of coil, three pure mica wires have been widened within the specific limits and around the choice of the wire gauge of stator coil, design of electrical motor is optimized more.

The accompanying drawing explanation

Fig. 1 be the thin pure mica wire of three Gent of the present utility model and around the structural representation of stator coil.

Embodiment

In order to be understood the technical solution of the utility model better, below by specific embodiment, also be described in detail by reference to the accompanying drawings.

Refer to Fig. 1, the thin pure mica wire of a kind of three Gent of the present utility model and around stator coil, comprise two straight line portioies 11, four corner portion 12 and two ends 13, wherein,

The thickness direction of two straight line portioies 11 go up most row with time upper row's turn-to-turn, descend row and time lower row's turn-to-turn to be lined with respectively first liner 21 most, the length of the length of the first liner 21 and width and straight line portion 11 and width are corresponding 1 one by one, along the length direction of two straight line portioies 11 at interval of a coverage L1 along the wrapped some circle polyester film adhesive tapes 31 of the periphery of the cross section of stator coil;

Three row turn-to-turns of the Width of four corners 12 are lined with respectively second liner 22, the length of the second liner 22 is 150mm, width is corresponding with the thickness of corner 12, and in the length range of the second liner 22 at interval of a coverage L2 along the wrapped some circle polyester film adhesive tapes 32 of the periphery of the cross section of stator coil.

In best embodiment, L1=100mm, L2=15mm.The first liner 21 and the second liner 22 are the soft composite insulating foil of polyester film and polyester fibre non woven fabric that 0.2mm is thick.The wrapped number of turns of the wrapped number of turns of the polyester film adhesive tape 31 on two straight line portioies 11 and the polyester film adhesive tape 32 of corner 12 is a circle half.

The thin pure mica wire of three Gent of the present utility model and around stator coil, when making, the first liner 21 can well, also can be encased inside by pad when coiling after coiling, the second liner 22 generally is encased inside after coiling.

The thin pure mica wire of three Gent of the present utility model and around stator coil, simple in structure, easy to operate, can effectively avoid stator coil after moulding occur concavo-convex, arch upward, not straight, overproof, the phenomenons such as rollover, overlapping, displacement, greatly reduced the learies of coil, widened within the specific limits three pure mica wires and, around the choice of the wire gauge of stator coil, design of electrical motor optimized more.

Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that do not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.

Claims

The thin pure mica wire of Gent and around stator coil, comprise two straight line portioies, four corner portion and two ends, it is characterized in that,

The going up row and time upper row's turn-to-turn most, descend row and time lower row's turn-to-turn to be lined with respectively the length of a length and width and straight line portion and width the first liner one to one most of the thickness direction of described two straight line portioies, and along the length direction of described two straight line portioies at interval of a segment distance L1 along the wrapped some circle polyester film adhesive tapes of the periphery of the cross section of stator coil;

It is the second liner that 150mm, width are corresponding with the thickness of corner that three row turn-to-turns of the Width of described four corners are lined with respectively a length, and in the length range of described the second liner at interval of a segment distance L2 along the wrapped some circle polyester film adhesive tapes of the periphery of the cross section of stator coil.
The thin pure mica wire of three Gent according to claim 1 and around stator coil, it is characterized in that described L1=100mm.
The thin pure mica wire of three Gent according to claim 1 and around stator coil, it is characterized in that described L2=15mm.
The thin pure mica wire of three Gent according to claim 1 and around stator coil, it is characterized in that, the wrapped number of turns of described polyester film adhesive tape is a circle half.
The thin pure mica wire of three Gent according to claim 1 and around stator coil, it is characterized in that, the thickness of described the first liner and the second liner is 0.2mm.