Segmented layer type winding insulation structure

Abstract

The utility model is applicable to the technical field of transformers, and provides a sectional layer type winding insulation structure which comprises a winding, the winding is divided into a winding upper half section and a winding lower half section through an inter-section insulation end ring, a first angle ring is sleeved on the winding upper half section, and a second angle ring is sleeved on the winding lower half section; by arranging the first angle ring and the second angle ring, a traditional single-angle ring is changed into a double-angle ring, so that the electrical insulation reliability is improved, the electric field of the adjacent part between the winding upper half section and the winding lower half section is effectively blocked, the electric field intensity of the end part of the winding is homogenized, and the anti-short-circuit capability of the winding is enhanced; the head end lead-out wire and the tail end lead-out wire are led out between the insulation end ring and the angle ring, the position is controllable, wiring and fixing through an external copper bar in the later period are facilitated, and the stability of the wiring structure is guaranteed. The winding tapping lead is directly led out from the outer layer in the radial direction, production and manufacturing are convenient, quality is controllable, operation is easy, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a segmented layer winding insulation structure. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are a primary coil, a secondary coil, and an iron core (magnetic core). In electrical equipment and wireless circuits, it is often used for voltage stepping, impedance matching, and safety isolation. In a generator, whether the coil moves through a magnetic field or the magnetic field moves through a fixed coil, an electric potential is induced in the coil. In both cases, the value of the magnetic flux remains unchanged, but the amount of magnetic flux intersecting the coil changes. This is the principle of mutual induction. A transformer is a device that uses electromagnetic mutual induction to transform voltage, current, and impedance.

[0003] The existing segmented layer winding insulation structure uses a single-angle ring, which has high insulation manufacturing requirements and poor reliability. The tap lead is led out from between segments, and the insulation distance is difficult to control, requiring an enlarged margin, which increases costs. It also requires high skills from production personnel. Utility Model Content

[0004] The utility model provides a segmented layer winding insulation structure, aiming to solve the problems of the existing segmented layer winding insulation structure, which adopts a single angle ring, has high insulation production requirements and poor reliability; the tap lead is led out from between segments, the insulation distance is difficult to control, and the margin needs to be enlarged, thereby increasing the cost; and the high skill requirements for production personnel.

[0005] The utility model is implemented as follows: a segmented layered winding insulation structure includes a winding, which is divided into an upper half of the winding and a lower half of the winding by inter-segment insulating end rings, a first angle ring is sleeved on the upper half of the winding, and a second angle ring is sleeved on the lower half of the winding, the upper end of the first angle ring is arranged on the upper end ring of the winding, and the lower end of the second angle ring is arranged on the lower end ring of the winding.

[0006] Preferably, a head end lead wire is provided on the upper half of the winding, and the head end lead wire extends outward from between the first angle ring and the upper end ring.

[0007] The beneficial effect of adopting the above further solution is that the position of the lead-out wire at the first end can be adjusted freely, which is convenient for later wiring.

[0008] Preferably, a tail lead wire is provided on the lower half of the winding, and the tail lead wire extends outward from between the second angle ring and the lower end ring.

[0009] The beneficial effect of adopting the above further solution is that it is easy to fix the wiring through the external copper busbar in the later stage, thereby ensuring the stability of the wiring structure.

[0010] Preferably, one side of the upper half winding and the lower half winding is provided with a plurality of groups of tap lines, and the plurality of groups of tap lines are arranged in sequence and at intervals.

[0011] The beneficial effect of the above further scheme is that it is convenient for production, controllable in quality, easy to operate and improves production efficiency.

[0012] Preferably, the first corner ring and the second corner ring are made of high magnetic permeability material.

[0013] The beneficial effect of the above further scheme is that the corner ring made of high magnetic permeability material such as silicon steel sheet can effectively reduce energy loss and improve magnetic field conduction efficiency.

[0014] Preferably, the upper end ring and the lower end ring are made of high-performance composite material.

[0015] The beneficial effect of the above further scheme is that it has excellent electrical properties, mechanical strength and heat resistance.

[0016] Compared with the prior art, the beneficial effect of the utility model is that the segmented layer type winding insulation structure of the utility model is improved from a traditional single corner ring to a double corner ring by being provided with a first corner ring and a second corner ring, electrical insulation reliability is improved, the electric field between the upper half winding and the lower half winding is effectively blocked, the electric field strength of the winding end is homogenized, and the short circuit resistance of the winding is enhanced; the first end lead-out wire and the tail end lead-out wire are led out from between the insulation end ring and the corner ring, the position is controllable, it is convenient for fixing through external copper bar connection in the later period, and the stability of the connection structure is ensured; the winding tap lead is directly led out from the outer layer in the radial direction, which is convenient for production, controllable in quality, easy to operate and improves production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] In the drawing: 1, first corner ring; 2, upper end ring; 3, first end lead-out wire; 4, upper half winding; 5, inter-segment insulation end ring; 6, second corner ring; 7, lower half winding; 8, lower end ring; 9, tap lead; 10, tail end lead-out wire. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and do not limit the utility model.

[0020] Please refer to Figure 1The utility model provides a kind of sectional layer type winding insulation structure technical scheme: a kind of sectional layer type winding insulation structure, including winding, winding is separated into winding upper half 4 and winding lower half 7 by intersegment insulation end ring 5, first angle ring 1 is set on winding upper half 4, second angle ring 6 is set on winding lower half 7, the upper end of first angle ring 1 is arranged on the upper end ring 2 of winding, the lower end of second angle ring 6 is arranged on the lower end ring 8 of winding.

[0021] In the embodiment, by being provided with first angle ring 1 and second angle ring 6, it is changed from traditional single angle ring to double angle ring, improves electrical insulation reliability, effectively blocks the electric field of adjacent part between winding upper half 4 and winding lower half 7, homogenizes the electric field intensity of winding end, enhances the short-circuit resistance of winding.

[0022] Further;Winding upper half 4 is provided with first end lead-out wire 3, and first end lead-out wire 3 extends outward between first angle ring 1 and upper end ring 2.

[0023] In the embodiment, first end lead-out wire 3 is led out between first angle ring 1 and upper end ring 2, which facilitates free adjustment of the position of first end lead-out wire 3 and facilitates later wiring.

[0024] Generally;Winding lower half 7 is provided with tail end lead-out wire 10, and tail end lead-out wire 10 extends outward between second angle ring 6 and lower end ring 8.

[0025] In the embodiment, tail end lead-out wire 10 is led out between second angle ring 6 and lower end ring 8, which facilitates free adjustment of the position of tail end lead-out wire 10 and facilitates later wiring fixation by external copper bar, to ensure the stability of wiring structure.

[0026] Specifically;One side of winding upper half 4 and winding lower half 7 is provided with a plurality of groups of tapping lead 9, and the plurality of groups of tapping lead 9 are arranged in sequence with intervals.

[0027] In the embodiment, winding tapping lead 9 is directly led out from the outer layer in a radial direction, which facilitates production, quality control, easy operation and improves production efficiency.

[0028] In addition;The material of first angle ring 1 and second angle ring 6 is high magnetic permeability material.

[0029] In the embodiment, the material, manufacturing process and installation method of the angle ring also significantly affect its effect in the transformer, and the angle ring made of high magnetic permeability material such as silicon steel sheet can more effectively reduce energy loss and improve magnetic field conduction efficiency.

[0030] It should be noted that the material of upper end ring 2 and lower end ring 8 is high-performance composite material.

[0031] In this embodiment, the upper end ring 2 and the lower end ring 8 are made of high-performance composite materials, such as epoxy resin, polyester, polyurethane or polyimide, which have excellent electrical properties, mechanical strength and heat resistance.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A segmented layer winding insulation structure, characterized in that: The invention comprises a winding, wherein the winding is divided into an upper half section (4) and a lower half section (7) of the winding by an inter-segment insulating end ring (5); a first angle ring (1) is sleeved on the upper half section (4) of the winding, and a second angle ring (6) is sleeved on the lower half section (7) of the winding; the upper end of the first angle ring (1) is arranged on the upper end ring (2) of the winding, and the lower end of the second angle ring (6) is arranged on the lower end ring (8) of the winding; a head end lead wire (3) is arranged on the upper half section (4), and the head end lead wire (3) extends outward from between the first angle ring (1) and the upper end ring (2); and a tail end lead wire (10) is arranged on the lower half section (7), and the tail end lead wire (10) extends outward from between the second angle ring (6) and the lower end ring (8).

2. The segmented layer winding insulation structure according to claim 1, characterized in that: A plurality of groups of connecting wires (9) are provided on one side of the upper half section (4) and the lower half section (7) of the winding, and the plurality of groups of connecting wires (9) are arranged in sequence and at intervals.

3. The segmented layer winding insulation structure according to claim 1, characterized in that: The first angle ring (1) and the second angle ring (6) are made of a material with high magnetic permeability.

4. The segmented layer winding insulation structure according to claim 1, characterized in that: The upper end ring (2) and the lower end ring (8) are made of high-performance composite materials.

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