阅读说明：本技术 间断性自粘绕包线及其绕包方法 (Intermittent self-adhesive lapping wire and lapping method thereof ) 是由 匡美周 郑庆祥 王琼 于 2021-08-09 设计创作，主要内容包括：本发明公开了一种间断性自粘绕包线,包括：裸导体和绕包在所述裸导体外的绝缘层,所述绝缘层由两层以上的绝缘层单元组成,所述绝缘层单元包括自粘的绝缘层单元和非自粘的绝缘层单元,所述自粘的绝缘层单元是指在所述绝缘层单元的表面复合有胶层,所述绝缘层中有一层为自粘的绝缘层单元以及有一层为非自粘的绝缘层单元,所述绝缘层的各绝缘层单元之间错开预设比例重叠,所述绝缘层依照预设百分比重叠绕包在所述裸导体外。本发明还公开一种间断性自粘绕包线的绕包方法。本发明旨在通对绕包线中不同绝缘层的绕包设置进而实现VPI浸漆充分渗入线圈绝缘内部的目的。(The invention discloses a discontinuous self-adhesive lapped wire, which comprises: naked conductor with around the package the outer insulating layer of naked conductor, the insulating layer comprises the insulating layer unit more than two-layer, the insulating layer unit includes self-adhesive insulating layer unit and non-self-adhesive insulating layer unit, self-adhesive insulating layer unit indicates the surface recombination of insulating layer unit has the glue film, there is the one deck to be self-adhesive insulating layer unit and have the one deck to be non-self-adhesive insulating layer unit in the insulating layer, stagger between each insulating layer unit of insulating layer and predetermine the proportion overlap, the insulating layer is according to predetermineeing percentage overlap around the package outside the naked conductor. The invention also discloses a wrapping method of the intermittent self-adhesive wrapping wire. The invention aims to achieve the purpose that VPI dip varnish fully permeates into the coil insulation by the wrapping arrangement of different insulation layers in a wrapped wire.)

1. The utility model provides an intermittent type nature self-adhesion is around chartered line which characterized in that includes: naked conductor with around the package the outer insulating layer of naked conductor, the insulating layer comprises the insulating layer unit more than two-layer, the insulating layer unit includes self-adhesive insulating layer unit and non-self-adhesive insulating layer unit, self-adhesive insulating layer unit indicates the surface recombination of insulating layer unit has the glue film, there is the one deck to be self-adhesive insulating layer unit and have the one deck to be non-self-adhesive insulating layer unit in the insulating layer, stagger between each insulating layer unit of insulating layer and predetermine the proportion overlap, the insulating layer is according to predetermineeing percentage overlap around the package outside the naked conductor.

2. The intermittent self-adhesive lapped wire of claim 1, wherein the insulating layer units compounded with the adhesive layer are arranged at intervals, and the adhesive layer is compounded on the surface of the corresponding insulating layer unit by 100%.

3. The intermittent self-adhesive lapped wire of claim 2, wherein when said predetermined ratio is less than 1 and greater than 0, the insulation layer units of said insulation layer are staggered and overlapped according to the corresponding predetermined ratio.

4. The intermittent self-adhesive lapping wire of claim 3 wherein said insulating layer is wrapped around said bare conductor according to a 30-75% overlap.

5. The intermittent self-adhesive lapped wire of claim 4, wherein the side of the self-adhesive insulating layer unit compounded with the adhesive layer is lapped outside the bare conductor away from the bare conductor.

6. The intermittent self-adhesive lapped wire of claim 5, wherein when said insulation layer is formed of two layers of insulation layer elements, the first layer is a non self-adhesive insulation layer element and the second layer is a self-adhesive insulation layer element; alternatively, the first layer is a self-adhesive insulating layer unit and the second layer is a non-self-adhesive insulating layer unit.

7. The intermittent self-adhesive lapped wire of claim 5, wherein when said insulation layer is formed of three layers of insulation layer elements, the first layer is a non self-adhesive insulation layer element and one of the second layer or the third layer is a self-adhesive insulation layer element;

alternatively, the first layer is a self-adhesive insulating layer element and one of the second or third layers is a non-self-adhesive insulating layer element.

8. The intermittent self-adhesive lapped wire of claim 5, wherein when said insulation layer is comprised of four layers of insulation layer elements, the first layer is non-self-adhesive insulation layer elements and one of the second, third or fourth layers is self-adhesive insulation layer elements;

or the first layer is a self-adhesive insulating layer unit, and one of the second layer, the third layer or the fourth layer is a non-self-adhesive insulating layer unit.

9. The discontinuous self-adhesive lapped wire according to any one of claims 1 to 8, wherein the insulating layer unit is a polymer film material layer, the non-self-adhesive insulating layer unit is a polymer film material layer or an organic polymer film material composite mica paper layer, the organic polymer film material composite mica paper layer is an organic polymer film material layer with mica paper compounded on one side, the self-adhesive insulating layer unit is a glue layer compounded on one side of the organic polymer film material composite mica paper layer, the mica paper and the glue layer are respectively arranged on two sides of the polymer film material layer, and the polymer film material layer is a polyimide film layer or a polyester film layer.

10. A method of laying an intermittent self-adhesive wrapping wire according to any one of claims 1 to 9 wherein the steps of said method of laying an intermittent self-adhesive wrapping wire comprise:

determining the number of layers of the wrapping insulating layers, wherein the number of the layers of the insulating layers is the number of each insulating layer unit;

determining the distribution among the insulating layer units according to the number of the insulating layers;

staggering and overlapping the insulating layer units according to a preset proportion according to the determined distribution of the insulating layers;

and overlapping the overlapped insulating layers outside the bare conductor according to a preset percentage.

Technical Field

The invention relates to the field of winding wires, in particular to a discontinuous self-adhesive lapping wire and a lapping method thereof.

Background

An insulating layer of an existing motor stator coil is relatively thick, and in a VPI (vacuum pressure impregnation) dip coating process, the more sufficient the dip coating permeates into the coil, the tighter the combination of the dip coating, main insulation and turn-to-turn insulation is, and the greater the electrical strength of the coil is; on the contrary, if the impregnating varnish does not fully penetrate into the coil insulation, the stator is easy to cause the ground voltage-resistant breakdown; the electromagnetic wire is the most important structural component of the stator coil, and the permeability of the insulating layer of the electromagnetic wire has an important influence on the electrical strength of the whole insulation of the coil. Prior art CN202076027U provides an organic polymer material film and glass cloth reinforcement mica tape discontinuity self-adhesion around package, wherein, the insulating layer divide into first insulating layer and second insulating layer, through it has the adhesive to realize gluing between the insulating layer to add between each layer inside first insulating layer and second insulating layer to and through the glass cloth strengthening layer one side at the insulating layer outwards, be used for improving the mechanical strength of insulating layer, and prior art overlaps around package and sets up inside unable better realization VPI dip coating fully permeates the coil insulation.

Disclosure of Invention

The invention mainly aims to provide a discontinuous self-adhesive wrapping wire and a wrapping method thereof, and aims to solve the technical problem that VPI dipping paint cannot be better permeated into the interior of coil insulation in the conventional wrapping arrangement.

In order to achieve the above object, the present invention provides a discontinuous self-adhesive lapped wire, comprising: naked conductor with around the package the outer insulating layer of naked conductor, the insulating layer comprises the insulating layer unit more than two-layer, the insulating layer unit includes self-adhesive insulating layer unit and non-self-adhesive insulating layer unit, self-adhesive insulating layer unit indicates the surface recombination of insulating layer unit has the glue film, there is the one deck to be self-adhesive insulating layer unit and have the one deck to be non-self-adhesive insulating layer unit in the insulating layer, stagger between each insulating layer unit of insulating layer and predetermine the proportion overlap, the insulating layer is according to predetermineeing percentage overlap around the package outside the naked conductor.

Optionally, the insulating layer units composited with the adhesive layer are arranged at intervals, and 100% of the adhesive layer is composited on the surface of the corresponding insulating layer unit.

Optionally, when the preset ratio is smaller than 1 and larger than 0, the insulating layer units of the insulating layer are staggered and overlapped according to the corresponding preset ratio.

Optionally, the insulating layer is wrapped around the bare conductor according to a 30% -75% overlap.

Optionally, one side of the self-adhesive insulating layer unit, which is combined with the adhesive layer, is far away from the bare conductor and is wrapped outside the bare conductor.

Optionally, when the insulating layer is composed of two insulating layer units, the first layer is a non-self-adhesive insulating layer unit, and the second layer is a self-adhesive insulating layer unit; alternatively, the first layer is a self-adhesive insulating layer unit and the second layer is a non-self-adhesive insulating layer unit.

Optionally, when the insulating layer is composed of three insulating layer units, the first layer is a non-self-adhesive insulating layer unit, and one of the second layer and the third layer is a self-adhesive insulating layer unit;

alternatively, the first layer is a self-adhesive insulating layer element and one of the second or third layers is a non-self-adhesive insulating layer element.

Optionally, when the insulating layer is composed of four insulating layer units, the first layer is a non-self-adhesive insulating layer unit, and one of the second layer, the third layer or the fourth layer is a self-adhesive insulating layer unit;

or the first layer is a self-adhesive insulating layer unit, and one of the second layer, the third layer or the fourth layer is a non-self-adhesive insulating layer unit.

Optionally, the insulating layer unit is a polymer film material layer, the non-self-adhesive insulating layer unit is a polymer film material layer or an organic polymer film material composite mica paper layer, the organic polymer film material composite mica paper layer is an organic polymer film material layer with one side being composited with mica paper, the self-adhesive insulating layer unit is a glue layer composited on one side of the organic polymer film material composite mica paper layer, the mica paper and the glue layer are respectively arranged on two sides of the polymer film material layer, and the polymer film material layer is a polyimide film layer or a polyester film layer.

In addition, in order to achieve the above object, the present invention further provides a wrapping method of an intermittent self-adhesive wrapping wire according to any one of the above mentioned items, the steps of the wrapping method of the intermittent self-adhesive wrapping wire include:

determining the number of layers of the wrapping insulating layers, wherein the number of the layers of the insulating layers is the number of each insulating layer unit;

determining the distribution among the insulating layer units according to the number of the insulating layers;

staggering and overlapping the insulating layer units according to a preset proportion according to the determined distribution of the insulating layers;

and overlapping the overlapped insulating layers outside the bare conductor according to a preset percentage.

The invention provides an intermittent self-adhesive lapped wire which comprises a bare conductor and an insulating layer lapped outside the bare conductor, wherein the insulating layer consists of more than two layers of insulating layer units, each insulating layer unit comprises a self-adhesive insulating layer unit and a non-self-adhesive insulating layer unit, the self-adhesive insulating layer units are formed by compounding an adhesive layer on the surface of each insulating layer unit, one layer of self-adhesive insulating layer units and one layer of non-self-adhesive insulating layer units are arranged in each insulating layer, the insulating layer units of each insulating layer are overlapped in a staggered preset ratio, and the insulating layers are lapped outside the bare conductor according to a preset percentage. The insulating layer unit complex of self-adhesion has the glue film can the adjacent insulating layer unit of effectual adhesion to stagger between each insulating layer unit and predetermine the proportion overlap, effectual VPI dip varnish that makes things convenient for fully infiltrates coil insulation inside, and then overlap around the design that is favorable to the winding through predetermineeing the percentage, formed discontinuous self-adhesion winding structure, the realization both can satisfy the requirement of coil straightway row spacing stable in structure, can satisfy the permeability requirement of turn-to-turn insulating VPI dip varnish again.

Drawings

FIG. 1 is a schematic perspective view of a first embodiment of an intermittent self-adhesive lapped wire according to the present invention;

FIG. 2 is a schematic side view in elevation of a first embodiment of the intermittent self-adhesive lapped wire of the present invention;

fig. 3 is a schematic flow chart of an embodiment of a wrapping method of the intermittent self-adhesive wrapping wire of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Bare conductor	200	Insulating layer
210	Self-adhesive insulating layer unit	220	Non-self-adhesive insulating layer unit

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The main solution of the embodiment of the invention is as follows:

an insulating layer of an existing motor stator coil is relatively thick, and in a VPI (vacuum pressure impregnation) dip coating process, the more sufficient the dip coating permeates into the coil, the tighter the combination of the dip coating, main insulation and turn-to-turn insulation is, and the greater the electrical strength of the coil is; on the contrary, if the impregnating varnish does not fully penetrate into the coil insulation, the stator is easy to cause the ground voltage-resistant breakdown; the electromagnetic wire is the most important structural component of the stator coil, and the permeability of the insulating layer of the electromagnetic wire has an important influence on the electrical strength of the whole insulation of the coil.

The invention provides a solution, and provides an intermittent self-adhesive lapped wire which comprises a bare conductor and an insulating layer lapped outside the bare conductor, wherein the insulating layer consists of more than two layers of insulating layer units, each insulating layer unit comprises a self-adhesive insulating layer unit and a non-self-adhesive insulating layer unit, the self-adhesive insulating layer units are formed by compounding an adhesive layer on the surface of each insulating layer unit, one layer of self-adhesive insulating layer unit and one layer of non-self-adhesive insulating layer unit are arranged in each insulating layer, the insulating layer units of the insulating layers are overlapped in a staggered preset proportion, and the insulating layers are lapped outside the bare conductor according to a preset percentage. The insulating layer unit complex of self-adhesion has the glue film can the adjacent insulating layer unit of effectual adhesion to stagger between each insulating layer unit and predetermine the proportion overlap, effectual VPI dip varnish that makes things convenient for fully permeates coil insulation inside, and then overlap around the package through predetermineeing the percentage and be favorable to the design of self-adhesion around the covering, formed discontinuous self-adhesion around the covering structure, the realization both can satisfy the requirement of coil straightway row intercourse stable in structure, can satisfy the permeability requirement of turn-to-turn insulating VPI dip varnish again.

In particular, the following examples further illustrate the specific construction of the intermittent self-adhesive lapped wire of the present invention.

As shown in fig. 1 to 2, the present invention provides an intermittent self-adhesive lapped wire, comprising: bare conductor 100 with around the package bare conductor outer insulating layer 200, insulating layer 200 comprises the insulating layer unit more than two-layer, the insulating layer unit includes self-adhesive insulating layer unit 210 and non-self-adhesive insulating layer unit 220, self-adhesive insulating layer unit 210 indicates the surface recombination of insulating layer unit has the glue film, there is the one deck to be self-adhesive insulating layer unit 210 and have the one deck to be non-self-adhesive insulating layer unit 220 in insulating layer 200, the preset proportion of staggering overlaps between each insulating layer unit of insulating layer, insulating layer 200 is according to presetting percentage overlap around the package outside bare conductor 100.

In this embodiment, the insulating layer unit is a polymer film material layer, and the polymer film material layer is a polyimide film layer or a polyester film layer. The non-self-adhesive insulating layer unit 220 is a polymer film material layer or an organic polymer film material composite mica paper layer, the organic polymer film material composite mica paper layer is an organic polymer film material layer with one side being composited with mica paper, the self-adhesive insulating layer unit 210 is a glue layer composited on one side of the organic polymer film material composite mica paper layer, and the mica paper and the glue layer are respectively arranged on two sides of the polymer film material layer. The glue film is thermosetting glue, and the thickness of individual layer polyimide film layer or polyester film layer can be 0.02 ~ 0.05mm, and the thickness of the polyimide film layer or the polyester film layer that the individual layer complex has mica scraps of paper can be 0.06 ~ 0.10mm, one side that self-adhered insulating layer unit 210 complex has the glue film is kept away from naked conductor 100 is around the package outside naked conductor 100, and the organic polymer film material composite mica paper layer that has the glue film promptly is outwards. And the self-adhesive insulating layer unit 210 is compounded with the glue layer, so that the adjacent insulating layer units can be effectively adhered.

Meanwhile, in order to improve the VPI infiltration effect, the insulating layer units are required to be overlapped in a staggered preset ratio, the staggered preset ratio is in the width direction of the insulating layer, the preset ratio is smaller than 1 and larger than 0, and the insulating layer is controlled to be wrapped outside the bare conductor according to 30% -75% of overlapping. Therefore, the setting of each insulating layer unit, through staggering between each insulating layer unit and predetermine the proportion overlap, effectual convenient VPI dip varnish fully permeates coil insulation inside, and then overlaps around the design that is favorable to discontinuity self-adhesion around the wire through predetermineeing the percentage to the realization both can satisfy the requirement of coil straightway row space stable in structure, can satisfy the permeability requirement of turn-to-turn insulating VPI dip varnish again.

Further, when the insulation layer 200 is composed of two layers of insulation layer units, the first layer is a self-adhesive insulation layer unit 210, and the second layer is a non-self-adhesive insulation layer unit 220; when two layers of insulating layer materials are adopted for wrapping, the inner layer materials are self-adhesive insulating layer materials, the outer layer materials are non-self-adhesive insulating layer materials, the self-adhesive layers face outwards, the two layers of insulating layer materials are staggered and interlocked according to a first preset proportion, then a first preset percentage is overlapped for wrapping, the first preset proportion is 1/4-1/3, and the first preset percentage is 30-50%.

The three-dimensional view of the intermittent self-adhesive wrapping yarn shown in fig. 1 and the side view of the intermittent self-adhesive wrapping yarn shown in fig. 2 are that the two insulating layer units in the intermittent self-adhesive wrapping yarn are respectively the insulating layer unit 210 with the first layer being self-adhesive, the insulating layer unit 220 with the second layer being non-self-adhesive, and the first preset proportion between the two insulating layer units is 1/4, and the first preset percentage is 50%.

Further, when the insulating layer 200 is composed of two insulating layer units, a first insulating layer unit that is not self-adhesive may be provided, and a second insulating layer unit that is self-adhesive may be provided.

Further, when the insulating layer 200 is composed of three insulating layer units, the first layer is a non-self-adhesive insulating layer unit 220, and one of the second layer or the third layer is a self-adhesive insulating layer unit 210, specifically, when three insulating layer materials are used for wrapping, the first insulating layer material from inside to outside uses a non-self-adhesive insulating layer material, the second layer and the third layer material have a self-adhesive insulating layer material, the self-adhesive layers face outwards, and after the three insulating layer materials are respectively staggered and interlocked in a second preset proportion, the three insulating layer materials are overlapped and wrapped in a second preset percentage; the second preset proportion is 1/6-1/5, and the second preset percentage is 50% -66.6%. Wherein the insulating layer unit 210 of which one of the second layer or the third layer is self-adhesive may be provided with the insulating layer unit 210 of which the second layer is self-adhesive, the third layer being provided with the insulating layer unit 210 of which the third layer is self-adhesive or the non-self-adhesive insulating layer unit 220, and the second layer being also provided with the insulating layer unit 220 of which the second layer is non-self-adhesive, the third layer being the self-adhesive insulating layer unit 210.

Further, when the insulating layer 200 is composed of three insulating layer units, it is also possible to provide that the first layer is a self-adhesive insulating layer unit 210, and one of the second layer or the third layer is a non-self-adhesive insulating layer unit 220.

Further, when the insulation layer 200 is composed of four insulation layer units, the first layer is a non-self-adhesive insulation layer unit 220, and one of the second layer, the third layer or the fourth layer is a self-adhesive insulation layer unit 210; specifically, when four layers of insulating layer materials are adopted for wrapping, the first layer of insulating layer materials from inside to outside uses non-self-adhesive insulating layer materials, one layer of insulating layer unit materials which are self-adhesive is arranged in the second layer, the third layer or the fourth layer, the self-adhesive layer faces outwards, the four layers of insulating layer materials are staggered and interlocked according to a third preset proportion, and then, the four layers of insulating layer materials are overlapped and wrapped according to a third preset percentage; the third predetermined percentage is 66.6-75% after the third predetermined percentage is 1/8-1/7 interlocked.

Further, when the insulation layer 200 is composed of four insulation layer units, the first layer is a self-adhesive insulation layer unit 210, and one of the second, third or fourth layers is a non-self-adhesive insulation layer unit 220.

The bare conductor in the above embodiments may be one of a bare copper flat wire, a bare copper round wire, a bare aluminum flat wire, a bare aluminum round wire, a bare copper-clad aluminum flat wire, and a bare copper-clad aluminum round wire.

In addition, this application still provides a method of wrapping around of discontinuity self-adhesion around package, the step of the method of wrapping around package of discontinuity self-adhesion around package includes:

step S10: determining the number of layers of the wrapping insulating layers, wherein the number of the layers of the insulating layers is the number of each insulating layer unit;

step S20: determining the distribution among the insulating layer units according to the number of the insulating layers;

in this embodiment, each insulating layer unit constituting the insulating layer 200 has at least two layers, and one of the insulating layers 200 has a self-adhesive insulating layer unit 210 and a non-self-adhesive insulating layer unit 220, for example, when the number of the insulating layer units is 2, one of the layers is the self-adhesive insulating layer unit 210, and the remaining layer is the non-self-adhesive insulating layer unit 220, and the arrangement order of the two layers is not limited; when the number of the insulating layer units is 3, any two layers of the insulating layer units should be required to include the insulating layer unit 210 with one layer being self-adhesive and the insulating layer unit 220 with the other layer being non-self-adhesive, and the remaining layer is not limited, namely the insulating layer unit 210 with one layer being self-adhesive and the insulating layer unit 220 with one layer being non-self-adhesive; similarly, when the number of the insulating layer units is 4, it is required that any two layers of the insulating layer units should include the insulating layer unit 210 with one layer being self-adhesive and the insulating layer unit 220 with the other layer being non-self-adhesive, and the remaining two layers are not limited and may be both the self-adhesive insulating layer unit 210 and the non-self-adhesive insulating layer unit 220, or may be a combination of the self-adhesive insulating layer unit 210 and the non-self-adhesive insulating layer unit 220.

Step S30: staggering and overlapping the insulating layer units according to a preset proportion according to the determined distribution of the insulating layers;

step S40: and overlapping the overlapped insulating layers outside the bare conductor according to a preset percentage.

In this embodiment, according to the quantity of each insulating layer that confirms, and then confirm that the preset proportion that needs stagger and preset percentage overlap and wrap, realize setting up the fine package of each insulating layer unit in the outside of bare conductor. The insulating layer unit is a polymer film material layer, the polymer film material layer is a polyimide film layer or a polyester film layer, and the orientation of the insulating layer is limited to a certain extent based on the difference of materials in the insulating layers, for example, the organic polymer film material composite mica paper layer compounded with the glue layer faces outwards, the glue layer is thermosetting glue, and 100% of the glue layer needs to cover the surface of the organic polymer film material composite mica paper layer, wherein the mica paper and the glue layer are respectively arranged on two sides of the polymer film material layer.

In this embodiment, through the above wrapping method, insulating layer units can be fine wrapped on the surface of bare conductor 100, and the adhesive layer 210 based on self-adhesion is compounded with the insulating layer units that the adhesive layer can be adjacent in effective adhesion, and stagger preset proportion between each insulating layer unit and overlap the wrapping according to preset percentage, so that the intermittent self-adhesion wrapping wire made after the wrapping can meet the requirement of stable structure between the coil straight line segments in subsequent use, and can meet the permeability requirement of the turn-to-turn insulation VPI dip coating.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system 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 system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.