CN213211934U

CN213211934U - Lead-out structure of large-current multi-tap coil

Info

Publication number: CN213211934U
Application number: CN202022164400.XU
Authority: CN
Inventors: 董宏林; 马璞; 林波; 柴孟东; 张成飞; 燕飞东; 张志强; 谷国栋
Original assignee: Shandong Electrical Engineering and Equipment Group Co Ltd
Current assignee: Shandong Electrical Engineering and Equipment Group Co Ltd; Shandong Power Equipment Co Ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-05-14
Anticipated expiration: 2030-09-27

Abstract

The utility model relates to a heavy current multi-tap coil's structure of starting, the average symmetrical divide into of coil through the duplex winding two sets of lower extremes (upper end a set of lower extreme is a set of), divide into the integer multiple component of identical 2 with the upper end a set of shunting of coil according to the serial number and connect out the head structure, divide into the integer multiple component of identical 2 with the lower extreme a set of shunting of coil according to the serial number and connect out the head structure, the shunting that will divide into after the group is started the structure and is symmetrical respectively to be set up in the both sides of iron core post. The utility model can tap the heavy current multi-conductor into two or more groups of outlet structures with different outlet positions by grouping the tapping outlets, thereby reducing the difficulty of production operation, improving the space utilization efficiency and operability and reducing the probability of heavy current accidents; 2) the utility model discloses simple structure, easy to carry out, low cost, market prospect is wide.

Description

Lead-out structure of large-current multi-tap coil

Technical Field

The utility model belongs to the technical field of power transformer manufacturing, concretely relates to first structure of play of heavy current multi-tap coil.

Background

As users demand larger and larger transformer capacity and tapping range, higher requirements are put on equipment design and manufacture. In particular, some transformer devices with limitations on installation sites need to adopt some special technical measures to meet the production requirements of the devices.

For example, for a transformer with a large-current multi-tap coil, since there are many tap taps of the coil, and in the existing transformer tap structure, all the tap taps are usually disposed on one-side outgoing lines of an iron core column, the space of the tap structure is very tight due to excessive over-squeezing of the tap taps in the tap structure, the safety margin is reduced, the production and installation of the transformer are very inconvenient, and the production efficiency is reduced.

Disclosure of Invention

In order to solve the technical problem, improve the space utilization of structure and convenient operation of appearing, the utility model provides a novel structure of appearing of heavy current multi-tap coil. The utility model discloses the technical scheme who adopts as follows:

the coils which are parallelly wound are averagely and symmetrically divided into two groups of upper ends and lower ends (one group at the upper end/one group at the lower end), the group of tapping taps at the upper end of the coil are divided into completely identical integer multiple component tap structures of 2 according to the number, the group of taps at the lower end of the coil are divided into completely identical integer multiple component tap structures of 2 according to the number, and the grouped tapping structures are symmetrically arranged on two sides of an iron core column respectively.

The utility model has the advantages that:

1) the utility model discloses a grouping of shunting tapping can become two sets of or multiunit tapping structures that different positions were qualified for the next round of competitions with heavy current multiple conductor shunting, has reduced the production operation degree of difficulty, has improved space utilization efficiency and maneuverability, has reduced heavy current accident probability.

2) The utility model discloses simple structure, easy to carry out, low cost, market prospect is wide.

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 illustrative of some embodiments of the invention, and that those skilled in the art will be able to derive other drawings without inventive step from these drawings, which are within the scope of the present application.

Fig. 1 is a front view of a conventional coil outlet structure;

fig. 2 is a sectional view of an upper end outlet structure of a conventional coil outlet structure;

fig. 3 is a schematic diagram of an upper end outlet structure of a conventional coil outlet structure;

fig. 4 is a front view of the novel coil outlet structure according to the embodiment of the present invention;

fig. 5 is a cross-sectional view of an upper end tap structure of the novel coil tap structure according to an embodiment of the present invention;

fig. 6 is a schematic diagram of an upper end outlet structure of the novel coil outlet structure according to an embodiment of the present invention;

in the figure, 1-coil, 2-first upper end outlet structure, 3-first lower end outlet structure, 4-core column, 5-second upper end outlet structure, 6-third upper end outlet structure, 7-second lower end outlet structure, 8-coil stay.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Fig. 1 is a front view of a conventional coil outlet structure; as shown in fig. 2, it is a cross-sectional view of an upper end outlet structure of a conventional coil outlet structure; fig. 3 is a schematic view of an upper end outlet structure of a conventional coil outlet structure. In the existing transformer with the large-current multi-tap coil, all tap taps are usually arranged on a single-side outlet of an iron core column. The coil 1 has a plurality of taps (48 taps are shown in the figure as being grouped up and down), a first upper end tap structure 2 (including 48 taps, the upper taps of the voltage regulating coil are divided into two groups, the numbers of which are respectively 1357 and 2468) is arranged on the upper portion of the coil 1, and a first lower end tap structure 3 (including 48 taps, the lower taps of the voltage regulating coil are divided into two groups, the numbers of which are respectively 1 '3' 5 '7' and 2 '4' 6 '8') is arranged on the lower portion of the

coil

1, and 8 is a coil stay. The first upper end part outlet structure 2 and the first lower end part outlet structure 3 are both positioned on one side of the core limb 4, so that the head outlet space is tense, the production operation is not facilitated, and a large-current accident is easily caused.

In the embodiment of the present invention, the example of dividing the tapping head of the coil into two groups is described. As shown in fig. 4, it is a front view of the novel coil outlet structure of the embodiment of the present invention; as shown in fig. 5, it is a cross-sectional view of an upper end outlet structure of the novel coil outlet structure according to the embodiment of the present invention; as shown in fig. 6, it is a schematic diagram of an upper end outlet structure of a novel coil outlet structure according to an embodiment of the present invention. The utility model provides a big current multi-tap coil's structure of leading out, after the coil that goes through the duplex winding is divided into two sets of upper and lower (every circle of coil axial is divided into 2 groups, and a set of upper end/lower extreme are a set of), divide into two sets of structures of leading out that are the exact same (should accord with the parallel requirement) with a set of tapping of upper end of coil 1 according to the number: the second upper end outlet structure 5 and the third upper end outlet structure 6 divide a group of tapping outlets at the lower end of the coil 1 into two groups of tapping structures which are completely the same (should meet the parallel requirement) according to the number: a second lower end head 7 structure and a third lower end head structure. The second upper end head outlet structure 5, the third upper end head outlet structure 6, the second lower end head outlet structure 7 and the third lower end head outlet structure are respectively arranged on two sides of the iron core column 4, and when the voltage regulating coils are connected up and down, the space utilization rate and the operable space are enlarged, the workshop lead operation is facilitated, the safety of equipment is improved, and the whole voltage regulating task is formally completed by one coil.

The coil head is divided into two groups (or a plurality of groups) of head structures according to parts with identical numbers and voltages, for example, the figure shows: the tapping outlet numbers 1 are connected in parallel by 6 wires, each turn of wire is divided into two groups which are symmetrical up and down in the example, and then the two groups of outlets are respectively arranged on the two sides of the iron core column, so that the tapping outlet numbers 1 on the two sides of the iron core column are respectively connected in parallel by 3 wires, the space can be effectively utilized, and the safety reliability and the production efficiency are improved.

Finally, it is to be noted that: the above embodiments 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 substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. The tapping structure of the large-current multi-tap coil is characterized in that the coils which are wound in parallel are averagely and symmetrically divided into an upper group and a lower group, the tapping heads of the upper group of the coils are divided into identical integral multiple component tapping head structures of 2 according to the number, the tapping heads of the lower group of the coils are divided into identical integral multiple component tapping head structures of 2 according to the number, and the grouped tapping head structures are respectively and symmetrically arranged on two sides of an iron core column.

2. A high-current multi-tap coil tap structure according to claim 1, wherein the tap taps of one group at the upper end of the coil (1) are divided into two groups of identical tap structures according to the number: the second upper end goes out first structure (5), the third upper end goes out first structure (6), divides into two sets of identical structures of going out according to the number with a set of tapping of lower extreme of coil (1): and the second lower end part head outlet structure (7) and the third lower end part head outlet structure are respectively arranged at two sides of the iron core column (4) and are respectively arranged on the second upper end part head outlet structure (5) and the third upper end part head outlet structure (6) and the second lower end part head outlet structure (7) and the third lower end part head outlet structure.

3. A high-current multi-tap coil tap structure according to claim 2, wherein the tap taps of the upper group and the tap taps of the lower group of the coil (1) are respectively divided into two groups of tap structures which are identical and meet the parallel connection requirement according to numbers.