CN210640032U

CN210640032U - Lapped wire for explosion-proof motor

Info

Publication number: CN210640032U
Application number: CN201922030945.9U
Authority: CN
Inventors: 张祺
Original assignee: Anhui Zhongwei Copper Co Ltd
Current assignee: Anhui Zhongwei Copper Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-05-29
Anticipated expiration: 2029-11-21

Abstract

The utility model provides a lapped wire for an explosion-proof motor, which comprises a wire, an organic insulating film layer, a polyester yarn layer, a first insulating paint layer, a mica tape layer, a second insulating paint layer and a glass yarn layer; the organic insulating film layer, the polyester yarn layer, the insulating paint layer, the mica tape layer, the insulating paint layer and the glass yarn layer are sequentially arranged on the outer side of the wire from inside to outside; the polyester yarn has good high-temperature resistance and fire resistance, good ductility, and can be recovered after being stretched, and the performance of the lapped wire cannot be influenced by the wrinkles after the lapped wire is bent and straightened; the organic insulating film layer 2, the first insulating paint layer 4 and the second insulating paint layer 6 ensure the insulating property of the lapped wire; the mica tape layer 5 improves the corona resistance and radiation resistance of the lapped wire, so that the lapped wire can adapt to the working environment of an explosion-proof motor.

Description

Lapped wire for explosion-proof motor

Technical Field

The utility model relates to an enameled wire technical field especially relates to explosion-proof motor is with around package.

Background

With the development of society, the demand for energy is increasing, and the development of energy and the improvement of energy efficiency become the biggest problems facing human beings. The motor such as nuclear power, oil development, coal mining needs explosion-proof machine, needs a large amount of insulating lapped wire in explosion-proof machine, because special operational environment, insulating lapped wire must possess splendid high temperature resistant and radiation resistance. Inorganic silicon is used as an insulating layer in the market at present to improve the high temperature resistance and radiation resistance, but the inorganic silicon is thick and is not easy to bend, and the insulating property of the lapped wire is affected by cracking caused by transitional bending; and the inorganic silicon is replaced by an organic film, but the high-temperature resistance is not good.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art not enough, provide explosion-proof motor with around the cable.

The utility model discloses a following technical means realizes solving above-mentioned technical problem:

the explosion-proof motor is with wrapping the wire; the wire comprises a wire, an organic insulation film layer, a polyester yarn layer, a first insulation paint layer, a mica tape layer, a second insulation paint layer and a glass yarn layer; the organic insulating thin film layer, the polyester yarn layer, the insulating paint layer, the mica tape layer, the insulating paint layer and the glass yarn layer are sequentially arranged on the outer side of the wire from inside to outside.

As an improvement of the above technical solution, the organic insulating thin film layer is made of polyimide.

As an improvement of the technical scheme, the polyester yarn layer adopts double polyester yarns for cross wrapping, and the wrapping angle is 45-60 degrees.

As an improvement of the technical scheme, the mica tape layer is formed by lapping mica tapes, and the lapping rate is set to be 52-55%.

As an improvement of the technical scheme, the total thickness of the organic insulating film layer, the polyester yarn layer, the first insulating paint layer, the mica tape layer, the second insulating paint layer and the glass yarn layer is set to be 0.6-0.7 mm.

As an improvement of the technical scheme, the glass fiber layer comprises an anti-cracking layer and a compact layer, the anti-cracking layer adopts double glass fibers for cross wrapping, and the wrapping angle is 45-60 degrees; the compact layer adopts double glass filaments to alternately wrap, and the wrapping angle is 1-2 DEG

The utility model has the advantages that:

the polyester yarn has good high-temperature resistance and fire resistance, good ductility, and can be recovered after being stretched, and the performance of the lapped wire cannot be influenced by the wrinkles after the lapped wire is bent and straightened; the organic insulating film layer 2, the first insulating paint layer 4 and the second insulating paint layer 6 ensure the insulating property of the lapped wire; the mica tape layer 5 improves the corona resistance and radiation resistance of the lapped wire, so that the lapped wire can adapt to the working environment of an explosion-proof motor.

Drawings

Fig. 1 is a schematic structural view of a wrapped wire for an explosion-proof motor according to an embodiment of the present invention;

the wire 1, organic insulating film layer 2, polyester yarn layer 3, first insulating paint layer 4, mica tape layer 5, second insulating paint layer 6, glass silk layer 7.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

As shown in fig. 1, the lapped wire for the explosion-proof motor in this embodiment includes a wire 1, an organic insulating thin film layer 2, a polyester yarn layer 3, a first insulating paint layer 4, a mica tape layer 5, a second insulating paint layer 6, and a glass yarn layer 7; the organic insulating film layer 2, the polyester yarn layer 3, the insulating paint layer 4, the mica tape layer 5, the insulating paint layer 6 and the glass yarn layer 7 are sequentially arranged on the outer side of the lead 1 from inside to outside.

The organic insulation film layer 2 is made of polyimide.

The polyester yarn layer 3 is formed by alternately wrapping double polyester yarns, and the wrapping angle is 45-60 degrees; the double-polyester yarn winding device is formed by winding double polyester yarns with a winding angle of 45-60 degrees, and can play a role in tensile strength along the radial direction of the winding wire, so that the winding wire cannot crack when being wound and bent, and the service life of the winding wire is prolonged.

The mica tape layer 5 is formed by lapping mica tapes, and the lapping rate is set to be 52-55%; the 52-55% overlapping rate enables the insulating films to be overlapped into a three-layer structure at the joint, and avoids gaps at the joint when the wrapping wire is bent at the later stage.

The total thickness of the organic insulating film layer 2, the polyester yarn layer 3, the first insulating paint layer 4, the mica tape layer 5, the second insulating paint layer 6 and the glass yarn layer 7 is set to be 0.6-0.7 mm.

The glass fiber layer 7 comprises an anti-cracking layer and a compact layer, wherein the anti-cracking layer is formed by alternately wrapping double glass fibers, and the wrapping angle is 45-60 degrees; the compact layer is wrapped by adopting double glass fibers in a crossed manner, and the wrapping angle is 1-2 degrees; the anti-cracking layer can play a role in tensile resistance in the radial direction of the lapped wire, so that the lapped wire cannot crack when being wound and bent, the situation that the service life of the lapped wire is reduced due to cracking of the insulating film of the lapped wire caused by the fact that the lapped layer cracks is prevented, the bending degree of the lapped wire under the same condition is increased, and the adaptability is wider; the compact layer adopts double glass silk to form around the package for 1-2 around the package angle, can hug closely wire 1, organic insulating thin film layer 2, dacron silk layer 3, first insulating paint layer 4, mica tape layer 5, second insulating paint layer 6 and crack control layer together, when carrying out the bending to the package line, the clearance influence can not appear around the insulating nature of package line.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. Explosion-proof motor is with winding wire, its characterized in that: the wire comprises a wire, an organic insulation film layer, a polyester yarn layer, a first insulation paint layer, a mica tape layer, a second insulation paint layer and a glass yarn layer; the organic insulating thin film layer, the polyester yarn layer, the insulating paint layer, the mica tape layer, the insulating paint layer and the glass yarn layer are sequentially arranged on the outer side of the wire from inside to outside.

2. The lapped wire for the explosion-proof motor according to claim 1, characterized in that: the organic insulation film layer is made of polyimide.

3. The lapped wire for the explosion-proof motor according to claim 1, characterized in that: the polyester yarn layer is formed by alternately wrapping double polyester yarns, and the wrapping angle is 45-60 degrees.

4. The lapped wire for the explosion-proof motor according to claim 1, characterized in that: the mica tape layer is formed by lapping mica tapes, and the lapping rate is set to be 52-55%.

5. The lapped wire for the explosion-proof motor according to claim 1, characterized in that: the total thickness of the organic insulating film layer, the polyester yarn layer, the first insulating paint layer, the mica tape layer, the second insulating paint layer and the glass yarn layer is set to be 0.6-0.7 mm.

6. The lapped wire for the explosion-proof motor according to claim 1, characterized in that: the glass fiber layer comprises an anti-cracking layer and a compact layer, the anti-cracking layer is formed by alternately wrapping double glass fibers, and the wrapping angle is 45-60 degrees; the compact layer adopts double glass fibers to wrap in a crossed manner, and the wrapping angle is 1-2 degrees.