CN110828145A

CN110828145A - Foil type lead angle connection structure

Info

Publication number: CN110828145A
Application number: CN201911278835.2A
Authority: CN
Inventors: 薛建平; 关银环; 周亮
Original assignee: Wujiang Transformer Co Ltd
Current assignee: Wujiang Transformer Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-02-21

Abstract

The invention relates to the technical field of transformers, in particular to a foil type lead angle connection structure, wherein a copper bar shaft adopts a double-layer design, the shape and the structure of the double-layer design of the copper bar shaft are the same, and the copper bar shaft with the double-layer design adopts a copper bar for connection; according to the invention, the axial single-layer connection copper bar is changed into the axial double-layer connection copper bar, so that the structure of the copper bar is simple, and the radial occupied space is saved.

Description

Foil type lead angle connection structure

Technical Field

The invention relates to the technical field of transformers, in particular to a foil type lead angle connection structure.

Background

A transformer is a device that changes an alternating voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. According to the application, the method can be divided into: power transformers and special transformers (furnace transformers, rectification transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, mutual inductors, etc.).

The foil type coil is formed by winding a copper foil on a foil winding machine, and the head end and the tail end of the foil type coil are respectively connected with an independent copper bar in an argon arc welding mode. In the prior art, when the low-voltage foil winding is led out through the angle joint of the copper bars, an az copper bar structure is generally adopted, the structure is complex, the az copper bar structure is in the same plane with the bx copper bar and the cy copper bar, the bx copper bar needs to be bypassed by the transitional copper bars by the a and z copper bars, the whole az copper bar needs to be formed by welding 3 copper bars, meanwhile, 3 groups of copper bars are in the same plane, 3 layers of copper bars are needed in the radial direction, and the radial occupied space is large.

Disclosure of Invention

In order to solve the technical problems, the invention discloses a foil type lead angle connection structure which can solve the problems of complex structure and large radial occupied space.

The invention adopts the following specific technical scheme: the utility model provides a copper bar is connected to foil formula lead wire angle, copper bar axle adopts double-deck design, and the shape and the structure of the double-deck design of copper bar axle are the same, and the copper bar axle of double-deck design adopts a copper bar to connect.

The invention has the beneficial effects that: according to the invention, the axial single-layer connection copper bar is changed into the axial double-layer connection copper bar, so that the structure of the copper bar is simple, and the radial occupied space is saved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of a cross section a-a in fig. 1.

Fig. 3 is a schematic structural view of a section B-B in fig. 1.

Fig. 4 is a schematic view of a conventional foil lead angle connection structure.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.

Example (b): the utility model provides a copper bar is connected to foil formula lead wire angle, copper bar axle adopts double-deck design, and the shape and the structure of the double-deck design of copper bar axle are the same, and the copper bar axle of double-deck design adopts a copper bar to connect.

As shown in fig. 4, when the copper bar angle of the existing low-voltage foil winding outgoing line is connected to the outgoing line, the structure adopted by the diagram is usually adopted, the outgoing heads a and z, the outgoing heads b and x, and the outgoing heads c and y are respectively connected by the copper bars, thereby forming the angle outgoing line, the structure of the az copper bar is complex in the connection mode, because the az copper bar and the bx copper bar are in the same plane, and the az copper bar interferes with the bx copper bar from the point a to the point z, in order to solve the problem, an inverse U-shaped transition copper bar needs to be added at the intersection of the two groups of copper bars, so that the az copper bar bypasses the bx copper bar, because of the reason, the whole az copper bar needs to be formed by welding 2 straight copper bars and one U-shaped transition copper bar, the structure is complex, and meanwhile, 3 groups of copper bars are in the same plane, and 3 layers of copper bars need to be. .

The present embodiment solves the above technical problem, as shown in fig. 1-3, aiming at the defect of the existing low-voltage foil winding outlet copper bar angle connection outlet, the width of the connection copper bar is reduced and the thickness is increased, the copper bar axis is changed from single layer to double layer [ a1], such advantages are that az copper bar and bx copper bar, cy copper bar are respectively located on two planes, az copper bar is located on different layers from point a to point z, which will not interfere with bx copper bar, so there is no need to add transition copper bar, az can use one copper bar direct connection, while the radial direction is reduced from original 3 layers to 2 layers, and the radial occupation space is reduced.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A foil type lead angle connection structure is characterized in that a copper bar shaft adopts a double-layer design, and the shape and the structure of the double-layer design of the copper bar shaft are the same.

2. The foil-type lead angle connection structure of claim 1, wherein the copper bar shaft of the double-layer design is connected by one copper bar.