CN202940106U - Dry-type transformer with open coiled iron cores - Google Patents

Dry-type transformer with open coiled iron cores Download PDF

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Publication number
CN202940106U
CN202940106U CN 201220622302 CN201220622302U CN202940106U CN 202940106 U CN202940106 U CN 202940106U CN 201220622302 CN201220622302 CN 201220622302 CN 201220622302 U CN201220622302 U CN 201220622302U CN 202940106 U CN202940106 U CN 202940106U
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CN
China
Prior art keywords
iron core
low
dry
core
type transformer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220622302
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Chinese (zh)
Inventor
齐侠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Jia Heng Mechanical & Electrical Equipment Co., Ltd.
Original Assignee
齐侠
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 齐侠 filed Critical 齐侠
Priority to CN 201220622302 priority Critical patent/CN202940106U/en
Application granted granted Critical
Publication of CN202940106U publication Critical patent/CN202940106U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a dry-type transformer with open coiled iron cores. The transformer comprises a three-phase three-column iron core, wherein the sections of three core columns of the iron core are in the shape of a rectangular open coiled iron core; two fractures are formed in each layer; the fractures are arranged on the three core columns; low-voltage coils are arranged in the three core columns of the iron core; insulating layers are fastened outside the low-voltage coils; high-voltage coils are arranged outside the insulating layers; an upper clamping piece and a lower clamping piece are fixed on the iron core; and a high-voltage wiring end and a low-voltage wiring end are led out of the iron core. The dry-type transformer has the advantages of short magnetic circuit, high power factor, small size, high sudden short-circuit resistance, good process condition and the like.

Description

A kind of dry-type transformer for hatch winding iron core
Technical field
The utility model relates to transformer manufacture technology, particularly relates to a kind of dry-type transformer for hatch winding iron core.
Background technology
Dry-type transformer mainly is comprised of iron core and coil, and the core structure of present domestic conventional dry transformer is two kinds of stacked and takeup types.Laminated core structure is to be formed by the silicon steel sheet stack, because all there is many places mitre in the iron core of stack moulding in junction, every layer of limit, thereby cause the increase of magnetic resistance and iron loss, the exciting current of transformer is also increased, reduced power factor, had a strong impact on the power supply quality of electrical network, the existence of iron core seam has also caused the large problem of running noises.Coiled iron core is called again the volume iron core, is to be reeled by the silicon strip of definite shape to form, and the volume iron core has a certain upgrade than the performance of laminated core structure, is mainly reflected in that no-load loss is low, noise is little.But because the volume iron core is jointless structure, also there are problems, as: manufacturing equipment production capacity is limited, needs special-purpose spooling equipment during the iron-core coil coiling, and will wind the line with iron core, and winding process is difficult, complicated, production efficiency is low.The maintenance aspect is very difficult especially, in case the transformer coil breaks down, just can't take off coil from iron core and change, and must cause scrapping of whole transformer.Owing to there being above-mentioned shortcoming, popularization and use without seam volume iron core have been restricted.
The utility model content
The purpose of this utility model is exactly defective and the deficiency that exists for overcoming above-mentioned prior art, and a kind of dry-type transformer for hatch winding iron core is provided.
The technical scheme that adopts is:
A kind of dry-type transformer for hatch winding iron core, comprise housing, be equiped with iron core in housing, iron core is the three-phase three-column iron core, the cross sectional shape that it is characterized in that three stem stems of described iron core is rectangular aperture volume iron core, two fractures are arranged in every layer, fracture site is located at three stem stems, be incorporated with low-voltage coil in three stem stems of iron core, the outside of low-voltage coil is fastened with insulating barrier, the insulating barrier outside is equiped with high-tension coil, is fixed with upper clamping piece and lower clamping piece on iron core, and draws high-voltage terminal and low voltage terminal.
The utlity model has the advantages such as magnetic circuit is short, power factor is high, volume is little, anti-sudden short circuit ability is strong, process conditions are good.And no-load loss descends 10%, and no-load current descends approximately 20%, and reducing noise is more than 4 decibels.Do not need the spooling equipment of special-purpose volume iron core special use in manufacturing process, coil coiling has separately improved production efficiency.In transformer used, in a single day transformer coil broke down, and the transformer core opening part can be opened rear taking-up coil and keep in repair and change, and had fundamentally solved the defective that can not keep in repair without seam volume iron core.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model three-phase three-column iron core.
Embodiment
A kind of dry-type transformer for hatch winding iron core, comprise housing 10, be equiped with iron core 1 in housing 10, iron core 1 is the three-phase three-column iron core, the cross sectional shape of three stem stems 2 of iron core 1 is rectangular aperture volume iron core, two fractures 11 are arranged in every layer, fracture 11 positions are located at three stem stems 2, be incorporated with low-voltage coil 3 in three stem stems 2 of iron core 1, the outside of low-voltage coil 3 is fastened with insulating barrier 4, insulating barrier 4 outsides are equiped with high-tension coil 5, are fixed with upper clamping piece 6 and lower clamping piece 7 on iron core 1, and draw high-voltage terminal 8 and low voltage terminal 9.

Claims (1)

1. dry-type transformer for hatch winding iron core, comprise housing, be equiped with iron core in housing, iron core is the three-phase three-column iron core, the cross sectional shape that it is characterized in that three stem stems of described iron core is rectangular aperture volume iron core, two fractures are arranged in every layer, fracture site is located at three stem stems, be incorporated with low-voltage coil in three stem stems of iron core, the outside of low-voltage coil is fastened with insulating barrier, the insulating barrier outside is equiped with high-tension coil, is fixed with upper clamping piece and lower clamping piece on iron core, and draws high-voltage terminal and low voltage terminal.
CN 201220622302 2012-11-16 2012-11-16 Dry-type transformer with open coiled iron cores Expired - Fee Related CN202940106U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220622302 CN202940106U (en) 2012-11-16 2012-11-16 Dry-type transformer with open coiled iron cores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220622302 CN202940106U (en) 2012-11-16 2012-11-16 Dry-type transformer with open coiled iron cores

Publications (1)

Publication Number Publication Date
CN202940106U true CN202940106U (en) 2013-05-15

Family

ID=48324331

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220622302 Expired - Fee Related CN202940106U (en) 2012-11-16 2012-11-16 Dry-type transformer with open coiled iron cores

Country Status (1)

Country Link
CN (1) CN202940106U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111477451A (en) * 2020-05-29 2020-07-31 重庆望变电气(集团)股份有限公司 Assembly process of folding iron core and coil of dry-type transformer
CN111477452A (en) * 2020-05-29 2020-07-31 重庆望变电气(集团)股份有限公司 Production process of folding iron core for dry-type transformer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111477451A (en) * 2020-05-29 2020-07-31 重庆望变电气(集团)股份有限公司 Assembly process of folding iron core and coil of dry-type transformer
CN111477452A (en) * 2020-05-29 2020-07-31 重庆望变电气(集团)股份有限公司 Production process of folding iron core for dry-type transformer

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160429

Address after: City Road Shenyang city Liaoning province 110014 Shenhe District No. 16 Building No. 8 Room 206

Patentee after: Shenyang Jia Heng Mechanical & Electrical Equipment Co., Ltd.

Address before: 110000 No. 21-6, art road, Shenhe District, Liaoning, Shenyang

Patentee before: Qi Xia

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130515

Termination date: 20201116