CN205542335U - Transformer low -voltage coil - Google Patents

Transformer low -voltage coil Download PDF

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Publication number
CN205542335U
CN205542335U CN201620323764.9U CN201620323764U CN205542335U CN 205542335 U CN205542335 U CN 205542335U CN 201620323764 U CN201620323764 U CN 201620323764U CN 205542335 U CN205542335 U CN 205542335U
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CN
China
Prior art keywords
busbar
transformers
coil
insulating cylinder
insulation
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.)
Active
Application number
CN201620323764.9U
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Chinese (zh)
Inventor
邱国兴
黄洁
刘志明
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.)
Guangdong Keyuan Electric Co., Ltd
Original Assignee
GUANGDONG KEYUAN 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.)
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Publication date
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Priority to CN201620323764.9U priority Critical patent/CN205542335U/en
Application granted granted Critical
Publication of CN205542335U publication Critical patent/CN205542335U/en
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Anticipated expiration legal-status Critical

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  • Coils Of Transformers For General Uses (AREA)

Abstract

The utility model discloses a transformer low -voltage coil, including the insulating cylinder, lead electrical drainage, coil side separator and lead electrical drainage outward in the coiling in proper order along the outer wall of insulating cylinder, coil side separator passes through the copper foil parcel, and the end that stretches out that it is insulating that coil side separator's both ends are equipped with the end led electrical drainage in, is separated with the end that stretches out of leading electrical drainage outward. The utility model discloses simple structure had both realized good insulating properties, had guaranteed good electrical safety nature and mechanical strength again.

Description

Low voltage winding in transformers
Technical field
This utility model relates to transformer coil field, particularly to the low-voltage coil of a kind of transformator.
Background technology
Coil is often referred to wire winding ringwise, and as the one of coil, low-voltage coil is extensively applied In transformator.Owing to the working environment of transformator becomes increasingly complex, the low-voltage coil of its inside is existed Technology in insulating properties requires more and more higher, additionally, existing low-voltage coil mechanical strength, Anti-short circuit capability aspect there is also weak point, have impact on the application of transformer equipment.
Utility model content
The purpose of this utility model is to provide for a kind of low voltage winding in transformers, and the insulation improving coil is strong Degree and electric property.
According to an aspect of the present utility model, it is provided that a kind of low voltage winding in transformers, including insulation Cylinder, busbar, layer insulation and outer busbar along the outer wall coiling successively of insulating cylinder, interlayer is exhausted Edge is wrapped up by Copper Foil, the two ends of layer insulation be provided with end insulation, the external part of interior busbar with lead outward The external part of electricity row separates.
Due to layer insulation, the setting of end insulation, improve the dielectric strength of coil, exhausted by interlayer Edge two ends arrange end insulation so that interior busbar and outer busbar are pressed in layer insulation and end insulation, Improve the mechanical strength of coil, also add the anti-short circuit capability of transformer equipment.
In some embodiments, layer insulation has two, is provided with interlayer oil between two layer insulations Road.Thus, the heat that transformer iron core loss sends can be by the insulating oil in interlayer oil duct in circulation Time fully take away, to reach good cooling effect.
In some embodiments, the ellipsoidal cross section of low-voltage coil.Thereby it is ensured that coil tool Standby good mechanical strength.
In some embodiments, insulating cylinder is made up of epoxy resin.Thus, epoxy resin is used to reach To good insulation effect.
This utility model simple in construction, had both achieved good insulating properties, in turn ensure that good electricity Gas safety and mechanical strength.
Accompanying drawing explanation
Fig. 1 is the front sectional view of the low voltage winding in transformers of this utility model one embodiment;
Fig. 2 is the vertical view cutaway drawing of low voltage winding in transformers shown in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is described in further detail by embodiment.
As shown in Figure 1, 2, this low voltage winding in transformers includes insulating cylinder 1, and insulating cylinder 1 is by asphalt mixtures modified by epoxy resin Fat is made, and employing epoxy resin reaches good insulation effect.The cross section of whole low-voltage coil is ellipse Shape, it is ensured that coil possesses good mechanical strength.
Busbar 6, layer insulation 2 and outer busbar 5 along the outer wall coiling successively of insulating cylinder 1, Layer insulation 2 has two, is provided with interlayer oil duct 4, each layer insulation 2 between two layer insulations 2 Being wrapped up by Copper Foil 3, the two ends of each layer insulation 2 are provided with end insulation 7, stretching out of interior busbar 6 End separates with the external part of outer busbar 5.
Due to layer insulation 2, the setting of end insulation 7, improve the dielectric strength of coil, pass through interlayer 2 two ends of insulating arrange end insulation 7 so that interior busbar 6 and outer busbar 5 are pressed in layer insulation 2 And end insulation 7, improve the mechanical strength of coil, also add the anti-short circuit capability of transformer equipment. The heat that transformer iron core loss sends fully can be carried when circulation by the insulating oil in interlayer oil duct 4 Walk, to reach good cooling effect.This low voltage winding in transformers simple in construction, had both achieved good Insulating properties, in turn ensure that good electrical security and mechanical strength.
Above-described is only embodiments more of the present utility model.Ordinary skill for this area For personnel, on the premise of creating design without departing from this utility model, it is also possible to make some deformation And improvement, these broadly fall into protection domain of the present utility model.

Claims (4)

1. low voltage winding in transformers, it is characterised in that include insulating cylinder (1), along described insulating cylinder (1) Outer wall coiling successively in busbar (6), layer insulation (2) and outer busbar (5), described layer Between insulate (2) by Copper Foil (3) wrap up, the two ends of described layer insulation (2) be provided with end insulation (7), The external part of described interior busbar (6) separates with the external part of described outer busbar (5).
Low voltage winding in transformers the most according to claim 1, it is characterised in that described interlayer is exhausted Edge (2) has two, is provided with interlayer oil duct (4) between two described layer insulations (2).
Low voltage winding in transformers the most according to claim 1, it is characterised in that described low-voltage line The ellipsoidal cross section of circle.
Low voltage winding in transformers the most according to claim 1, it is characterised in that described insulating cylinder (1) it is made up of epoxy resin.
CN201620323764.9U 2016-04-18 2016-04-18 Transformer low -voltage coil Active CN205542335U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620323764.9U CN205542335U (en) 2016-04-18 2016-04-18 Transformer low -voltage coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620323764.9U CN205542335U (en) 2016-04-18 2016-04-18 Transformer low -voltage coil

Publications (1)

Publication Number Publication Date
CN205542335U true CN205542335U (en) 2016-08-31

Family

ID=56793441

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620323764.9U Active CN205542335U (en) 2016-04-18 2016-04-18 Transformer low -voltage coil

Country Status (1)

Country Link
CN (1) CN205542335U (en)

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Legal Events

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CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 528225 No. 15 Guohong Road, Phase II, Changhongling Industrial Park, Shishan Town, Nanhai District, Foshan City, Guangdong Province

Patentee after: Guangdong Keyuan Electric Co., Ltd

Address before: 528000 No.15, Guohong Road, phase II, changhongling Industrial Park, Shishan town, Nanhai District, Foshan City, Guangdong Province

Patentee before: Guangdong Keyuan Electric Co.,Ltd.