CN112599330A

CN112599330A - Binding structure and binding method of spiral coil

Info

Publication number: CN112599330A
Application number: CN202011220958.3A
Authority: CN
Inventors: 程军卫; 胥建文; 臧英; 徐莲环; 李象军; 李书连; 王新兵; 叶禄; 王亮
Original assignee: Shandong Electrical Engineering and Equipment Group Co Ltd
Current assignee: Shandong Electrical Engineering and Equipment Group Co Ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-04-02
Anticipated expiration: 2040-11-05
Also published as: CN112599330B

Abstract

The invention relates to a binding structure of a spiral coil, which comprises: the coil comprises a coil cake positioned at the coil outlet, an end ring adjacent to the coil cake, wherein more than two small holes are formed in the position, adjacent to the coil cake, of the end ring, and the coil cake and the end ring are bound into a whole through a binding belt through the small holes. The invention also relates to a binding method of the spiral coil. According to the binding structure and the binding method for the coil outlet of the transformer, the fixing firmness of the coil outlet of the spiral coil can be effectively improved under the fixing action of the small holes, the coil is prevented from being damaged when the coil outlet of the spiral coil is subjected to a large twisting force, and the operation reliability of the transformer is improved.

Description

Binding structure and binding method of spiral coil

Technical Field

The invention belongs to the technical field of transformer production and manufacturing, and particularly relates to a binding structure and a binding method for a spiral coil outlet of a transformer.

Background

The spiral coil of transformer goes out the effect that the head department can receive the torsional force at the operation in-process, and when short circuit fault appeared, this torsional force can further increase. If the coil outlet is not firmly fixed, the coil outlet is deformed and damaged, and finally, the transformer can be seriously failed.

At present, the fixing mode of the spiral coil leading-out position generally adopted is as follows: and directly binding the line cake at the head and the adjacent line cake. The binding mode can play a certain role in inhibiting when the twisting force is small; however, when the twisting force is large, the bound adjacent line cakes can rotate together, the rotation of the line cakes out of the binding head cannot be well inhibited, the damage can still be caused, and the hidden quality danger exists.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a more reliable binding structure and a binding method for enhancing the fixing effect of coil outlet ends, and the performance of a transformer is improved. The technical scheme adopted by the invention is as follows:

a helical coil binding structure comprising: the coil is located at the coil head outlet, the end ring adjacent to the coil is provided with more than two small holes, the coil and the end ring are bound into a whole by a binding band through the small holes, and the binding band avoids the position of the stay.

A binding method of a spiral coil applies the binding structure and comprises the following steps:

step 1, when an adjacent end ring at the coil head is manufactured, drilling a certain number of small holes at the position adjacent to a wire cake according to requirements;

and 2, after the coil is wound, binding the coil cake at the head and the end ring together through the small hole by using a binding band, wherein the binding band avoids the position of the stay.

The invention has the beneficial effects that:

according to the binding structure and the binding method for the coil outlet of the transformer, the fixing firmness of the coil outlet of the spiral coil can be effectively improved under the fixing action of the small holes, the coil is prevented from being damaged when the coil outlet of the spiral coil is subjected to a large twisting force, and the operation reliability of the transformer is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are specific embodiments of the invention, and that other drawings within the scope of the present application can be obtained by those skilled in the art without inventive effort.

FIG. 1 is a schematic deployment view of a coil lacing structure according to an embodiment of the invention;

in the figure, 1-wire cake, 2-end ring, 3-binding band, 4-stay and 5-small hole.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

As shown in fig. 1, is a development view of the coil tying structure of the embodiment of the present invention. A helical coil binding structure comprising: the coil cake 1 is positioned at the coil outlet, and the end coil 2 is adjacent to the coil cake 1. More than two small holes 5 are arranged at the position of the end ring 2 adjacent to the coil cake 1, the number of the small holes 5 is determined according to the stress of different coils and can be the same as the number of the coil grades or half of the number of the coil grades; the aperture of the small hole 5 is preferably 5 mm-10 mm; the distance between the small holes 5 and the line cake 1 is preferably 20mm-30 mm. Line cake 1 and end circle 2 are through aperture 5 with ligature area 3 (preferred shrink tube) ligature one-tenth, and the ligature structure can be 8 style of calligraphy ligature structure etc. to guarantee that the ligature is firm as the standard.

A binding method of a spiral coil comprises the following steps:

the number of the small holes is determined according to the stress of different coils, and can be the same as the number of the coil steps or half of the number of the coil steps; the aperture of the small hole is preferably phi 5 mm-phi 10 mm; the distance between the small hole and the line cake is preferably 20mm-30 mm.

Step 2, after the coil winding is finished, binding the coil cake at the head outlet and the end ring together through a small hole by using a binding belt, wherein the binding belt avoids the position of a stay;

the preferred shrink tube of ligature area, ligature structure can be 8 style of calligraphy ligature structures etc to guarantee that the ligature is firm as the standard.

Finally, it is to be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and the scope of the present invention is not limited thereto. Those skilled in the art will understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.

Claims

1. A helical coil binding structure comprising: the utility model provides a be located line cake (1) that the coil goes out head department, end circle (2) adjacent with line cake (1), its characterized in that, the position of neighbouring line cake (1) of end circle (2) on set up aperture (5) more than two, line cake (1) and end circle (2) are through aperture (5) with ligature area (3) ligature one-tenth, the position of stay (4) is avoided in ligature area (3).

2. A helical coil lacing structure as in claim 1, wherein the number of apertures (5) is the same as the number of coil steps or half the number of coil steps.

3. A helical coil lacing structure as claimed in claim 2, wherein the apertures (5) are between 5mm and 10 mm.

4. A helical coil lacing structure as claimed in claim 3, wherein the apertures (5) are spaced from the cake (1) by a distance of 20mm to 30 mm.

5. A helical coil binding structure according to claim 1, wherein said binding band (3) is a shrink tube.

6. A helical coil lacing structure as in claim 1, wherein the lacing structure is an 8-letter shaped lacing structure.

7. A method of lashing helical coils, wherein the lashing structure according to any one of claims 1 to 6 is applied, comprising the steps of:

8. A helical coil binding method according to claim 7, wherein in step 1, the number of the holes is determined according to the stress of different coils, and is the same as the number of the coil steps or half of the number of the coil steps; the aperture of the small hole is phi 5 mm-phi 10 mm; the distance between the small holes and the line cake is 20mm-30 mm.

9. A helical coil binding method as claimed in claim 7, wherein in step 2, the binding band is a shrink tube and the binding structure is an 8-shaped binding structure.