CN203311887U - Non-woven fabric polyester film covered wire used for transformer and motor - Google Patents

Abstract

The utility model relates to the technical field of electric wire material and specifically relates to a non-woven fabric polyester film covered wire used for a transformer and a motor. The non-woven fabric polyester film covered wire used for the transformer and the motor includes a lead. A first polyester film layer, a second polyester film layer and a third polyester film layer are arranged outside the lead successively from inside out. The outer layer of the third polyester film layer is provided with an insulation layer. By adopting the above structure, the non-woven fabric polyester film covered wire used for the transformer and the motor can have improved temperature-resisting and voltage-resisting performance. The temperature resistance level is B representing 130 DEG C. Besides, the non-woven fabric polyester film covered wire used for the transformer and the motor is reasonable in design, simple in structure and long in service lifetime and is mainly applied to the transformer, an air-core reactor and the like.

Description

Non-woven polyester film-covered wires for transformers and motors

technical field

The utility model relates to the technical field of wire materials, in particular to non-woven polyester film-covered wires for transformers and motors.

Background technique

At present, the existing non-woven polyester film-covered wire is usually only covered with a layer of polyester film on the outer layer of the wire, which has poor temperature and pressure resistance. And adopt above-mentioned this way, in actual use process, very easily take place line damage, cause short-circuit phenomenon, affect product quality, thereby bring great hidden danger of accident.

Contents of the invention

The purpose of the utility model is to provide a non-woven polyester film-covered wire for transformers and motors with good temperature resistance and pressure resistance, improved safety performance and extended service life.

In order to solve the problems existing in the background technology, the utility model adopts the following technical solutions: transformers and motors are covered with non-woven polyester film, including wires, and the outside of the wires is sequentially provided with a first polyester film from the inside to the outside. A film layer, a second polyester film layer and a third polyester film layer, the outer layer of the third polyester film layer is provided with an insulating layer.

Further, the insulating layer is a non-woven fabric for electrical purposes.

The utility model has the following beneficial effects: the non-woven polyester film-covered wire for transformers and motors described in the utility model mainly includes wires, wherein three layers of polyester films are sequentially arranged outside the wires, and a There is an insulating layer; the utility model adopts the above-mentioned structure, which can effectively improve its temperature and pressure resistance performance, wherein the temperature resistance grade is B grade, 130 ° C. In addition, the utility model has reasonable design, simple structure and long service life, and is mainly used for transformer air-core reactors and other similar products.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, transformers and motors are covered with non-woven polyester film, including a wire 1, and the outside of the wire 1 is sequentially provided with a first polyester film layer 2 and a second polyester film layer from inside to outside. 3 and the third polyester film layer 4, the outer layer of the third polyester film layer 4 is provided with an insulating layer 5; wherein, the insulating layer 5 is a non-woven fabric for electrical purposes. In this embodiment, the non-woven polyester film is characterized by a high withstand voltage level, which can be used for coils with a high withstand voltage level, such as high voltage reactors, etc. Secondly, the coil with a thin insulating layer is compact, which can reduce the amount of iron core and reduce the size , Reduce weight, thereby reducing infrastructure costs and facilitating installation.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model without limitation, other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the utility model, as long as they do not depart from the technical solution of the utility model The spirit and scope should be included in the claims of the present utility model.

Claims (2)

1. transformer and motor are with nonwoven fabrics polyester film envelope curve, comprise wire (1), it is characterized in that, the outside of described wire (1) is provided with the first laminated polyester film (2), the second laminated polyester film (3) and the 3rd polyester film layer (4) from the inside to the outside successively, and the skin of described the 3rd polyester film layer (4) is provided with insulating barrier (5).

2. transformer according to claim 1 and motor, with nonwoven fabrics polyester film envelope curve, is characterized in that, described insulating barrier (5) is used nonwoven fabrics for the electrician.

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