CN202049848U - Low tension coil of dry type transformer with end part sealing compound - Google Patents

Low tension coil of dry type transformer with end part sealing compound Download PDF

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Publication number
CN202049848U
CN202049848U CN2011201157172U CN201120115717U CN202049848U CN 202049848 U CN202049848 U CN 202049848U CN 2011201157172 U CN2011201157172 U CN 2011201157172U CN 201120115717 U CN201120115717 U CN 201120115717U CN 202049848 U CN202049848 U CN 202049848U
Authority
CN
China
Prior art keywords
coil
end part
dry type
type transformer
sealing compound
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 - Lifetime
Application number
CN2011201157172U
Other languages
Chinese (zh)
Inventor
张松伟
伦汉彬
简卓民
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.)
Guangzhou Zhongche Junfa Electrical Co. Ltd.
Original Assignee
GUANGZHOU JUNFA ELECTRIC CO Ltd
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 GUANGZHOU JUNFA ELECTRIC CO Ltd filed Critical GUANGZHOU JUNFA ELECTRIC CO Ltd
Priority to CN2011201157172U priority Critical patent/CN202049848U/en
Application granted granted Critical
Publication of CN202049848U publication Critical patent/CN202049848U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a low tension coil of a dry type transformer with an end part sealing compound, belongs to the field of transformers, and particularly relates to the low tension coil of the dry type transformer with the end part sealing compound. The low tension coil of the dry type transformer with the end part sealing compound comprises a foil strip, layer insulation, a lead-out copper bar and the end part sealing compound, wherein the foil strip is wound into a coil and is led out through the copper bar; the layer insulation is filled between turns of the foil strip; and the two ends of the foil strip are filled and sealed with the end part sealing compound. The low tension coil has the advantages of simple structure, entire integrated coil, good sealing effect and low coil manufacturing cost.

Description

The low-voltage coil of dry type transformer of end sealing
Technical field
The low-voltage coil of dry type transformer of the utility model end sealing belongs to field transformer, particularly relates to the low-voltage coil of dry type transformer of a kind of end sealing.
Background technology
Low-voltage coil of dry type transformer adopts paper tinsel when structure, and its moulding process has moulding by casting and preheating moulding, and moulding by casting manufacturing process is more, needs preheating, cast, gel, curing, form removal, polishing, and the production cycle is long, and equipment needed thereby is many, and it is big to take up room; The preheating moulding manufacture method is when coil winding, fill out envelope in the paper tinsel strap end portion with preimpregnation material, after the preheating moulding, because of the end face irregularity degree is difficult to control, need end face is polished, but bigger to drawing copper bar root polishing difficulty, the easy crack of end face during polishing, polishing back flatness effect is poor, if moreover the end is filled out when sealing the preimpregnation material thickness low LCL, the crack of polishing after the pre-hot curing is bigger, and moisture is very easily invaded low-voltage coil inside like this, has potential safety hazard.
Summary of the invention
The purpose of this utility model is to avoid weak point of the prior art, and a kind of good sealing effect is provided, and the mechanical strength height is saved the low-voltage coil of dry type transformer of the end sealing in space.
The purpose of this utility model reaches by following measure, the low-voltage coil of dry type transformer of end sealing comprises paper tinsel band, layer insulation, draws copper bar, the end sealing is formed, paper tinsel band coiled coil is also drawn by copper bar, between the paper tinsel band, fill layer insulation, fill out the sealing of end-blocking portion at overhang.
The utility model is filled out the sealing of end-blocking portion at the both ends of coil.
The utility model is simple in structure, and whole winding becomes one, good sealing effect, and the coil cost of manufacture is low.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Among the figure: end sealing 1, end sealing 2, end 3, layer insulation 4, paper tinsel band 5 is drawn copper bar 6.
As shown in Figure 1, the low-voltage coil of dry type transformer of the utility model end sealing comprises paper tinsel band 5, layer insulation 4, draws copper bar 6, end sealing 1 and end sealing 2 are formed, paper tinsel band coiled coil, between paper tinsel band 5, fill layer insulation 4, fill out end-blocking portion sealing 1 at overhang 3, fill out end-blocking portion sealing 2 in the other end of coil.The utility model adopts conventional coiling, fix drawing copper bar 6, between paper tinsel band 5, fill layer insulation 4, after heat treatment, coil is placed on the sealing frame, end winding is made as a die cavity with flexible die, fill out the sealing of end-blocking portion then at both ends, utilize height controller control end face height, the end is heat-treated, whole winding is become one with the circulation heating mode.The utility model has been simplified the low-voltage coil manufacturing process, good sealing effect, mechanical strength height; Need not the embedding casting equipment, save the space, the efficient height, the coil cost of manufacture is low, appearance looks elegant.

Claims (2)

1. the low-voltage coil of dry type transformer of an end sealing, it is characterized in that comprising paper tinsel band, layer insulation, draw copper bar, the end sealing forms, paper tinsel band coiled coil is also drawn by copper bar, fills layer insulation between the paper tinsel band, fills out the sealing of end-blocking portion at overhang.
2. the low-voltage coil of dry type transformer of end according to claim 1 sealing is characterized in that filling out at the both ends of coil the sealing of end-blocking portion.
CN2011201157172U 2011-04-20 2011-04-20 Low tension coil of dry type transformer with end part sealing compound Expired - Lifetime CN202049848U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201157172U CN202049848U (en) 2011-04-20 2011-04-20 Low tension coil of dry type transformer with end part sealing compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201157172U CN202049848U (en) 2011-04-20 2011-04-20 Low tension coil of dry type transformer with end part sealing compound

Publications (1)

Publication Number Publication Date
CN202049848U true CN202049848U (en) 2011-11-23

Family

ID=44990148

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201157172U Expired - Lifetime CN202049848U (en) 2011-04-20 2011-04-20 Low tension coil of dry type transformer with end part sealing compound

Country Status (1)

Country Link
CN (1) CN202049848U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102903514A (en) * 2012-11-05 2013-01-30 中电电气(江苏)股份有限公司 End sealing process for multilayer foil coil of dry-type transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102903514A (en) * 2012-11-05 2013-01-30 中电电气(江苏)股份有限公司 End sealing process for multilayer foil coil of dry-type transformer

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Low tension coil of dry type transformer with end part sealing compound

Effective date of registration: 20130715

Granted publication date: 20111123

Pledgee: Guangzhou Panyu Xinhua Village bank Limited by Share Ltd

Pledgor: Guangzhou Junfa Electric Co.,Ltd.

Registration number: 2013990000457

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20140303

Granted publication date: 20111123

Pledgee: Guangzhou Panyu Xinhua Village bank Limited by Share Ltd

Pledgor: Guangzhou Junfa Electric Co.,Ltd.

Registration number: 2013990000457

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
ASS Succession or assignment of patent right

Owner name: GUANGZHOU CSR JUNFA ELECTRIC CO., LTD.

Free format text: FORMER OWNER: GUANGZHOU JUNFA ELECTRIC CO., LTD.

Effective date: 20150512

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 511400 GUANGZHOU, GUANGDONG PROVINCE TO: 511447 GUANGZHOU, GUANGDONG PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20150512

Address after: Huashan road Panyu District town Guangzhou city Guangdong province 511447 stone floor No. 15 (C workshop)

Patentee after: South, Guangzhou Che Junfa Electric Applicance Co., Ltd

Address before: 511400 Guangdong city of Guangzhou province Panyu District Bridge Street South Street No. 3

Patentee before: Guangzhou Junfa Electric Co.,Ltd.

C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: Huashan road Panyu District town Guangzhou city Guangdong province 511447 stone floor No. 15 (C workshop)

Patentee after: Guangzhou Zhongche Junfa Electrical Co. Ltd.

Address before: Huashan road Panyu District town Guangzhou city Guangdong province 511447 stone floor No. 15 (C workshop)

Patentee before: South, Guangzhou Che Junfa Electric Applicance Co., Ltd

CX01 Expiry of patent term

Granted publication date: 20111123

CX01 Expiry of patent term