Copper sheet for transformer

Abstract

The utility model relates to the field of copper sheets, in particular to a copper sheet for a transformer, which comprises a pair of windings, the pair of windings consists of a first copper sheet and a second copper sheet, the first copper sheet and the second copper sheet are both provided with conductive pins, a connecting base is arranged on the outer side of the windings, and a positioning slot is arranged on the surface of the connecting base. The conductive pins of the first copper sheet and the second copper sheet can be inserted into the positioning slots, butt joint assemblies are arranged on the two sides of the connecting base, each butt joint assembly comprises a butt joint groove and an installation insertion block which are arranged on the surface of the connecting base, and the connecting base can be inserted into the butt joint groove of the other connecting base through the installation insertion block. Every two adjacent connecting bases are connected end to end, so that the multiple pairs of windings are combined into the whole secondary winding, installation is easier and more convenient, positioning is easier, the installation time is greatly shortened, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of copper sheets, in particular to a copper sheet for transformers. Background Art

[0002] Transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The structure of the transformer mainly includes iron core, winding, oil tank, accessories and other parts. Iron core: It is the magnetic circuit part of the transformer, which is composed of iron core column (winding set on the column) and iron yoke (connecting the iron core to form a closed magnetic circuit). The iron core is generally made of 0.35mm~0.5mm thick silicon steel sheets coated with insulating paint and stacked. The cross-section of the iron core of a small transformer is rectangular or square, and the cross-section of the iron core of a large transformer is stepped, which is to make full use of the space. Winding: It is wound into a ring shape and embedded in the iron core slot. Its function is to pass the flow. Oil tank: The oil container for placing the transformer plays a sealing role and prevents oil leakage. Accessories: Including bushings, casings, cooling devices, etc.

[0003] The winding of the transformer is the circuit part of the transformer, which is wound by copper wire or aluminum wire with high conductivity and is used in power systems. The winding should have sufficient insulation strength, mechanical strength and heat resistance. Windings are usually divided into two types: layer type and pancake type. The turns of the winding are arranged in sequence along its axial direction and wound continuously, which is called layer winding. Generally, each layer of the layer winding is like a cylinder, so the winding composed of two layers is called double-layer cylindrical type; the winding composed of multiple layers is called multi-layer cylindrical type.

[0004] The secondary winding is usually composed of a number of copper coils or copper sheets. The existing winding copper sheets are installed with the transformer through copper rods. Several copper sheets are installed on the copper rods at equal intervals. During installation, each copper sheet can only be installed one by one, which is very complicated. As a result, the installation time is very long and it is easy to be installed out of position. Utility Model Content

[0005] In order to overcome the deficiencies of the existing technical solutions, the utility model provides a copper sheet for a transformer, which can effectively solve the technical problem that the copper sheet installation process is complicated, tedious and time-consuming.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A copper sheet for a transformer includes a pair of windings, the pair of windings consists of a first copper sheet and a second copper sheet, the first copper sheet and the second copper sheet are both provided with conductive pins, a connecting base is provided on the outside of the windings, a positioning slot is provided on the surface of the connecting base, the conductive pins of the first copper sheet and the second copper sheet can be inserted into the positioning slot, and docking components are provided on both sides of the connecting base, the docking components include a docking groove and an installation plug-in block provided on the surface of the connecting base, and the connecting base can be inserted into the docking groove of another connecting base through the installation plug-in block, so that the two adjacent connecting bases are connected end to end.

[0008] Furthermore, the first copper sheet and the second copper sheet are both provided with a first pin and a second pin, and the surface of the connecting base is provided with two first positioning slots and a second positioning slot, and the first pin and the second pin can be inserted into the first positioning slot and the second positioning slot respectively.

[0009] Furthermore, the first copper sheet and the second copper sheet are both annular, and the first copper sheet and the second copper sheet are arranged front and back along the axial direction of the ring. The first pins of the first copper sheet and the second copper sheet are respectively arranged on the left and right sides of the second pin, and the two first positioning slots are respectively arranged on the left and right sides of the two second positioning slots.

[0010] Furthermore, the first pin and the surface of the connecting base are both provided with a first conductive hole, the second pin and the surface of the connecting base are both provided with a second conductive hole, and the first conductive hole and the second conductive hole both penetrate the connecting base.

[0011] Furthermore, the first conductive hole passes through a first positioning slot, and the second conductive hole passes through two second positioning slots.

[0012] Furthermore, the inner wall of the docking groove is provided with a fixing recess, and the opposite surfaces of the two installation plugs are provided with fixing protrusions, which can be inserted into the fixing recess.

[0013] Furthermore, a positioning boss is provided at one end of the connection base close to the mounting plug block, and a positioning groove is provided at one end of the connection base close to the docking groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are: a connecting base is provided, and during installation, the first copper sheet and the second copper sheet are first connected to the connecting base, and the conductive pins of the first copper sheet and the second copper sheet are inserted into the positioning slots. The connecting base can be inserted into the docking slot of another connecting base through the installation plug block, and the two adjacent connecting bases are connected end to end, so that multiple pairs of windings are combined into a whole secondary winding, the installation is simpler and more convenient, the positioning is easier, the installation time is greatly reduced, and the installation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the combination of multiple pairs of windings of a copper sheet for a transformer of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of a copper sheet for a transformer of the utility model;

[0017] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0018] Figure 4This is a rear view structural diagram of a copper sheet for a transformer according to the utility model;

[0019] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0020] Figure 6 This is an exploded view of a copper sheet for a transformer of the utility model;

[0021] Numbers in the figure: 1-winding, 2-first copper sheet, 3-second copper sheet, 4-connecting base, 5-docking groove, 6-mounting plug, 7-fixing notch, 8-fixing protrusion, 9-first conductive hole, 10-second conductive hole, 11-first pin, 12-second pin, 13-first positioning slot, 14-second positioning slot, 15-positioning groove, 16-positioning boss. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Combine the following Figure 1-Figure 6 A transformer copper sheet of the utility model is described in detail:

[0024] A copper sheet for a transformer comprises a pair of windings 1, the pair of windings being composed of a first copper sheet 2 and a second copper sheet 3, the first copper sheet 2 and the second copper sheet 3 being both provided with conductive pins, a connecting base 4 being provided on the outside of the windings, a positioning slot being provided on the surface of the connecting base 4, the conductive pins of the first copper sheet 2 and the second copper sheet 3 being both insertable into the positioning slots, a docking assembly being provided on both sides of the connecting base 4, the docking assembly comprising a docking groove 5 and an installation plug block 6 provided on the surface of the connecting base 4, the connecting base 4 being insertable into the docking groove 5 of another connecting base 4 through the installation plug block 6, so that the two adjacent connecting bases 4 are connected end to end, and the connecting base 4 is provided with a connecting assembly. The inner wall of the docking groove 5 is provided with a fixing recess 8, and the opposite surfaces of the two mounting blocks 6 are provided with fixing protrusions 8, which can be snapped into the fixing recess 8, and the mounting block 6 is fixed in the docking groove 5 by the fixing protrusions 8 and the fixing recess 8. The fixing protrusions 8 and the fixing recess 8 are snapped together to prevent the mounting block 6 from slipping out of the docking groove 5. A positioning boss 16 is provided at one end of the connecting base 4 close to the mounting block 6, and a positioning groove 15 is provided at one end of the connecting base 4 close to the docking groove 5. The positioning boss 16 and the positioning groove 15 can ensure that the first conductive hole 9 and the second conductive hole 10 of the two adjacent connecting bases 4 are aligned.

[0025] The first copper sheet 2 and the second copper sheet 3 are both provided with a first pin 11 and a second pin 12, and the surface of the connecting base 4 is provided with two first positioning slots 13 and a second positioning slot 14, the first pin 11 and the second pin 12 can be inserted into the first positioning slot 13 and the second positioning slot 14 respectively, the first copper sheet 2 and the second copper sheet 3 are both annular, the first copper sheet 2 and the second copper sheet 3 are arranged front and back along the axial direction of the ring, the first pin 11 of the first copper sheet 2 and the second copper sheet 3 are respectively arranged on the left and right sides of the second pin 12, and the two first positioning slots 13 are respectively arranged on the left and right sides of the two second positioning slots 14.

[0026] The first copper sheet 2 and the second copper sheet 3 are both provided with a first pin 11 and a second pin 12, and the surface of the connecting base 4 is provided with two first positioning slots 13 and a second positioning slot 14, the first pin 11 and the second pin 12 can be inserted into the first positioning slot 13 and the second positioning slot 14 respectively, the first pin 11 and the surface of the connecting base 4 are both provided with a first conductive hole 9, the second pin 12 and the surface of the connecting base 4 are both provided with a second conductive hole 10, the first conductive hole 9 and the second conductive hole 10 both penetrate the connecting base 4, the first conductive hole 9 passes through the first positioning slot 13, and the second conductive hole 10 passes through the two second positioning slots 14.

[0027] A copper sheet for a transformer in the present embodiment is provided with a connecting base 4. During installation, the first copper sheet 2 and the second copper sheet 3 are first connected to the connecting base 4, and the conductive pins of the first copper sheet 2 and the second copper sheet 3 are inserted into the positioning slots, and the first pin 11 and the second pin 12 are respectively inserted into the first positioning slot 13 and the second positioning slot 14. The connecting base 4 can be inserted into the docking slot 5 of another connecting base 4 through the installation plug 6, and the two adjacent connecting bases 4 are connected end to end, so that multiple pairs of windings are combined into a whole secondary winding, and the multiple pairs of windings are connected to the copper rod of the transformer through the first conductive hole 9 and the second conductive hole 10 after being combined. The installation is simpler and more convenient, and the positioning is easier, which greatly reduces the installation time and improves the installation efficiency.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A copper sheet for a transformer, comprising a pair of windings, wherein the pair of windings consists of a first copper sheet and a second copper sheet, characterized in that: The first copper sheet and the second copper sheet are both provided with conductive pins, a connecting base is provided on the outer side of the winding, a positioning slot is provided on the surface of the connecting base, the conductive pins of the first copper sheet and the second copper sheet can be inserted into the positioning slot, and docking components are provided on both sides of the connecting base. The docking components include a docking groove and an installation plug-in block provided on the surface of the connecting base. The connecting base can be inserted into the docking groove of another connecting base through the installation plug-in block, so that the two adjacent connecting bases are connected end to end.

2. The copper sheet for transformer according to claim 1, characterized in that: The first copper sheet and the second copper sheet are both provided with a first pin and a second pin, and the surface of the connecting base is provided with two first positioning slots and a second positioning slot, and the first pin and the second pin can be inserted into the first positioning slot and the second positioning slot respectively.

3. The copper sheet for transformer according to claim 2, characterized in that: The first copper sheet and the second copper sheet are both ring-shaped, and are arranged front and back along the axial direction of the ring. The first pins of the first copper sheet and the second copper sheet are respectively arranged on the left and right sides of the second pin, and the two first positioning slots are respectively arranged on the left and right sides of the two second positioning slots.

4. The copper sheet for transformer according to claim 2, characterized in that: The first pin and the surface of the connecting base are both provided with a first conductive hole, the second pin and the surface of the connecting base are both provided with a second conductive hole, and the first conductive hole and the second conductive hole both penetrate the connecting base.

5. The copper sheet for transformer according to claim 4, characterized in that: The first conductive hole passes through the first positioning slot, and the second conductive hole passes through the two second positioning slots.

6. A copper sheet for transformer according to any one of claims 1 to 5, characterized in that: The inner wall of the docking groove is provided with a fixing notch, and the opposite surfaces of the two installation plug blocks are provided with fixing convex points, which can be inserted into the fixing notch.

7. A copper sheet for transformer according to any one of claims 1 to 5, characterized in that: A positioning boss is arranged at one end of the connection base close to the installation plug block, and a positioning groove is arranged at one end of the connection base close to the docking groove.

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