CN103745812B - A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue - Google Patents
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue Download PDFInfo
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- CN103745812B CN103745812B CN201310755541.0A CN201310755541A CN103745812B CN 103745812 B CN103745812 B CN 103745812B CN 201310755541 A CN201310755541 A CN 201310755541A CN 103745812 B CN103745812 B CN 103745812B
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Abstract
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue, relates to a kind of traction rectifier transformer.Net lateral coil at existing resin-insulated dry traction rectifier transformer typically uses integral structure, is not easy to pour into a mould penetrating during cast.Present invention is characterized in that described net lateral coil is provided with multiple vertical longitudinal gas channel, multiple longitudinal gas channels are along net lateral coil circumference uniform distribution；Net lateral coil is provided with horizontal transverse air channel at the diverse location of its height, net lateral coil is divided into multiple independent coil unit by transverse air channel, the independent coiling of each coil unit, individually pour into a mould, isolated by cushion block between coil unit, and be electrically connected by conductive connecting piece so that it is become complete coil.The technical program is made up of unit coils of several independent cast, and individually the unit coil of cast is easily fabricated, is conducive to pouring into a mould penetrating, and inherent quality improves.
Description
Technical field
The present invention relates to a kind of traction rectifier transformer.
Background technology
In the technology of existing resin-insulated dry traction rectifier transformer, net lateral coil typically uses integral structure, but the net lateral coil due to resin-insulated dry traction rectifier transformer, the net lateral coil size of the resin-insulated dry traction rectifier transformer of especially 35KV and above high voltage large capcity is bigger, use integral structure, it is not easy to pour into a mould penetrating during cast, the index causing shelf depreciation does not reaches requirement, directly affect the quality that coil manufactures, often result in scrapping of coil.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is to carry out prior art improving and improving, it is provided that a kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue, to reach to improve the purpose of coil yield rate.To this end, the present invention takes techniques below scheme.
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue, including base, iron core, coil, it is enclosed within outside coil on iron core, described coil includes net lateral coil, valve lateral coil, it is characterized in that: described net lateral coil is provided with multiple vertical longitudinal gas channel, multiple longitudinal gas channels are along net lateral coil circumference uniform distribution；Net lateral coil is provided with horizontal transverse air channel at the diverse location of its height, net lateral coil is divided into multiple independent coil unit by transverse air channel, the independent coiling of each coil unit, individually pour into a mould, isolated by cushion block between coil unit, and be electrically connected by conductive connecting piece so that it is become complete coil.Net lateral coil is made up of unit coils of several independent cast, and individually the unit coil of cast is easily fabricated, is conducive to pouring into a mould penetrating, and inherent quality improves.Due to longitudinal gas channel and the existence of transverse air channel, air flows in longitudinal gas channel and transverse air channel, beneficially transformator heat radiation, and hot-air is from upper discharge, and cold air supplements from bottom and carries out, and accelerates heat radiation, it is ensured that the job stability of transformator.
As improving further and supplementing technique scheme, present invention additionally comprises following additional technical feature.
Net lateral coil has upper and lower two branch roads, each route main winding and Phase shift winding to constitute, and main winding is in end, and Phase shift winding is at middle part, and main winding and Phase shift winding each have independent tapping device.
Described net lateral coil is provided with four coil units, it is respectively first coil unit, the second coil unit, tertiary coil unit and the 4th coil unit stacked the most successively, being equipped with transverse air channel between two adjacent coil units and form three transverse air channels, three transverse air channels are respectively upper transverse air channel, middle transverse air channel and lower transverse air channel.
Described upper transverse air channel, lower transverse air channel lay respectively at the tap of branch road main winding and at the tap of lower branch road main winding；Described middle transverse air channel is positioned at the centre position of coil height.
Connect sheet correspondence by main winding tap between first coil unit and the second coil unit, between tertiary coil unit and the 4th coil unit and connect the outlet of unit coil；The outlet of the unit coil of transverse air channel both sides during sheet correspondence connects is connected by branch road tap between second coil unit and tertiary coil unit.
Described longitudinal gas channel cross section is oval, it arc-shaped edges including being positioned at two ends and the dual-side of connection two arc-shaped edges.
The tap terminals of main winding is divided on two coil units, and the tap terminals of the main winding being positioned at a coil unit is arranged side by side.
The tap terminals of Phase shift winding is located on a coil unit.
Described first coil unit comprises the upper main winding of branch road；The second described coil unit comprises the lower main winding of branch road and the upper and lower Phase shift winding of upper branch road；Described tertiary coil unit comprises the upper and lower Phase shift winding of lower branch road and the upper main winding of lower branch road；The 4th described coil unit comprises the lower main winding of lower branch road；Connect sheet by main winding tap between main winding up and down on same branch road to electrically connect；Connect sheet by Phase shift winding tap between Phase shift winding up and down to connect.
Described main winding tap connects sheet, Phase shift winding tap connects sheet and is located at transformator side, and branch road tap connects sheet and is located at transformator opposite side.Main winding tap connects sheet, Phase shift winding tap connection sheet is connected sheet with branch road tap and is divided into transformator both sides, and winding, from both sides outlet, is favorably improved the insulating properties of transformator.
Beneficial effect: after 1, coil is divided into some sub-windings, owing to every sub-winding volume is little, so Resin permeability during cast is good, achieve zero shelf depreciation of coil itself, quality is fully guaranteed, overcome the drawback that the coil cast of conventional integral form is the most penetrating, it is ensured that the qualification rate that coil manufactures.2, separating with cross-over block between unit winding, the gap of formation is also the transverse air channel of coil, improves heat-sinking capability, improves transformator operational reliability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is that the tap at the upper and lower transverse air channel of the present invention connects copper coin schematic diagram；
Fig. 3 is coil windings and the tapping structure schematic diagram of the present invention；
Fig. 4 is the structural representation of the coil windings longitudinal gas channel of the present invention.
In figure: 1-is unshakable in one's determination；2-coil；201-first coil unit；202-the second coil unit；203-tertiary coil unit；204-the 4th coil unit；3-main winding tap connects sheet；4-Phase shift winding tap connects sheet；5-branch road tap connects sheet；Transverse air channel under 6-；Transverse air channel in 7-；The upper transverse air channel of 8-；9-support；10-main winding；11-Phase shift winding；12-longitudinal gas channel；13-cushion block.
Detailed description of the invention
Below in conjunction with Figure of description, technical scheme is described in further detail.
As shown in Figure 1,2,3, 4, the present invention includes base 9, iron core 1, coil 2, is enclosed within unshakable in one's determination 1 outside coil 2, and wherein net lateral coil 2 is provided with multiple vertical longitudinal gas channel 12, and multiple longitudinal gas channels 12 are along net lateral coil 2 circumference uniform distribution；Net lateral coil 2 is provided with horizontal transverse air channel at the diverse location of its height, net lateral coil 2 is divided into multiple independent coil unit by transverse air channel, the independent coiling of each coil unit, individually pour into a mould, isolated by cushion block 13 between coil unit, and be electrically connected by conductive connecting piece so that it is become complete coil 2.Wherein net lateral coil 2 has upper and lower two branch roads, each route main winding 10 and Phase shift winding 11 to constitute, and main winding 10 is in end, and Phase shift winding 11 is at middle part, and main winding 10 and Phase shift winding 11 each have independent tapping device.Net lateral coil 2 is provided with four coil units, it is respectively first coil unit the 201, second coil unit 202, tertiary coil unit 203 and the 4th coil unit 204 stacked the most successively, being equipped with transverse air channel between two adjacent coil units and form three transverse air channels, three transverse air channels are respectively upper transverse air channel 8, middle transverse air channel 7 and lower transverse air channel 6.Upper transverse air channel 8, lower transverse air channel 6 lay respectively at the tap of branch road main winding 10 and at the tap of lower branch road main winding 10；Middle transverse air channel 7 is positioned at the centre position of coil 2 height.The corresponding outlet connecting unit coil 2 of sheet 3 is connected by main winding 10 tap between first coil unit 201 and the second coil unit 202, between tertiary coil unit 203 and the 4th coil unit 204；The outlet of the unit coil 2 of transverse air channel 7 both sides in the corresponding connection of sheet 5 is connected by branch road tap between second coil unit 202 and tertiary coil unit 203.Longitudinal gas channel 12 cross section is rounded, oval or trapezoidal, and longitudinal gas channel 12 cross section is oval in the present embodiment, it arc-shaped edges including being positioned at two ends and the dual-side of connection two arc-shaped edges.
First coil unit 201 comprises the upper main winding 10 of branch road；Second coil unit 202 comprises the lower main winding 10 of branch road and the upper and lower Phase shift winding 11 of upper branch road；Tertiary coil unit 203 comprises the upper and lower Phase shift winding 11 of lower branch road and the upper main winding 10 of lower branch road；4th coil unit 204 comprises the lower main winding 10 of lower branch road；Connect sheet 3 by main winding 10 tap between main winding up and down 10 on same branch road to electrically connect；Connect sheet 4 by Phase shift winding 11 tap between Phase shift winding 11 up and down to connect.The tap terminals of main winding 10 is divided on two coil units, and the tap terminals of the main winding 10 being positioned at a coil unit is arranged side by side.The tap terminals of Phase shift winding 11 is located on a coil unit.Described main winding tap connects sheet 3, Phase shift winding tap connects sheet 4 and is located at transformator side, and branch road tap connects sheet 5 and is located at transformator opposite side.
In net lateral coil 2 assembles, having transverse air channel between adjacent two unit coils 201 and 202,202 and 203,201 and 202, the size of transverse air channel depends on the thickness of air flue cushion block 13.The technical program split traditional integral net lateral coil 2 transverse air channel, use copper coin to connect sheet carries out being electrically connected breaking the whole up into parts of achieving that coil 2 manufactures, it is ensured that workmanship, improves coil 2 heat-sinking capability.Additionally, due to coil 2 has more preferable heat-sinking capability so that also have obvious coil 2 self to go condensation effect in southern rainy humid area.
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue shown in figure 1 above-4 is the specific embodiment of the present invention; substantive distinguishing features of the present invention and progress are embodied; can be according to actual use needs; under the enlightenment of the present invention; it is carried out the equivalent modifications of the aspect such as shape, structure, all at the row of protection domain of this programme.
Claims (10)
1. the resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue, including base (9), (1), coil (2) unshakable in one's determination, coil (2) is enclosed within iron core (1) outward, described coil (2) includes net lateral coil, valve lateral coil, it is characterized in that: described net lateral coil is provided with multiple vertical longitudinal gas channel (12), and multiple longitudinal gas channels (12) are along net lateral coil circumference uniform distribution；Net lateral coil is provided with horizontal transverse air channel at the diverse location of its height, net lateral coil is divided into multiple independent coil unit by transverse air channel, the independent coiling of each coil unit, individually pour into a mould, isolated by cushion block (13) between coil unit, and be electrically connected by conductive connecting piece so that it is become complete net lateral coil.
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue the most according to claim 1, it is characterized in that: net lateral coil has upper and lower two branch roads, each route main winding (10) and Phase shift winding (11) are constituted, main winding (10) is in end, Phase shift winding (11) is at middle part, and main winding (10) and Phase shift winding (11) each have independent tapping device.
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue the most according to claim 2, it is characterized in that: described net lateral coil is provided with four coil units, it is respectively first coil unit (201), the second coil unit (202), tertiary coil unit (203) and the 4th coil unit (204) stacked the most successively, being equipped with transverse air channel between two adjacent coil units and form three transverse air channels, three transverse air channels are respectively upper transverse air channel (8), middle transverse air channel (7) and lower transverse air channel (6).
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue the most according to claim 3, it is characterised in that: described upper transverse air channel (8), lower transverse air channel (6) lay respectively at the tap of branch road main winding (10) and at the tap of lower branch road main winding (10)；Described middle transverse air channel (7) is positioned at the centre position of net lateral coil height.
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue the most according to claim 4, it is characterised in that: the outlet of the corresponding connecting line coil unit of sheet (3) is connected between first coil unit (201) and the second coil unit (202), between tertiary coil unit (203) and the 4th coil unit (204) by main winding (10) tap；The outlet of the coil unit of transverse air channel (7) both sides in the corresponding connection of sheet (5) is connected by branch road tap between second coil unit (202) and tertiary coil unit (203).
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue the most according to claim 5, it is characterised in that: described longitudinal gas channel (12) cross section is ovalize, it arc-shaped edges including being positioned at two ends and the dual-side of connection two arc-shaped edges.
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue the most according to claim 6, it is characterized in that: the tap terminals of a main winding (10) is divided on two coil units, the tap terminals of the main winding (10) being positioned at a coil unit is arranged side by side.
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue the most according to claim 7, it is characterised in that: the tap terminals of a Phase shift winding (11) is located on a coil unit.
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue the most according to claim 8, it is characterised in that: described first coil unit (201) comprises the upper main winding (10) of branch road；Described the second coil unit (202) comprises the lower main winding (10) of branch road and the upper and lower Phase shift winding (11) of upper branch road；Described tertiary coil unit (203) comprises the upper and lower Phase shift winding (11) of lower branch road and the upper main winding (10) of lower branch road；The 4th described coil unit (204) comprises the lower main winding (10) of lower branch road；Connect sheet (3) by main winding (10) tap between main winding up and down (10) on same branch road to electrically connect；Connect sheet (4) by Phase shift winding (11) tap between Phase shift winding (11) up and down to connect.
A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue the most according to claim 9, it is characterized in that: described main winding tap connects sheet (3), Phase shift winding tap connects sheet (4) and is located at transformator side, and branch road tap connects sheet (5) and is located at transformator opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755541.0A CN103745812B (en) | 2013-12-31 | 2013-12-31 | A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310755541.0A CN103745812B (en) | 2013-12-31 | 2013-12-31 | A kind of resin-insulated dry traction rectifier transformer with transverse and longitudinal air flue |
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| CN103745812A CN103745812A (en) | 2014-04-23 |
| CN103745812B true CN103745812B (en) | 2016-09-28 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024330A (en) * | 2016-07-13 | 2016-10-12 | 上海沪光变压器有限公司 | Multi-coil dry-type traction rectifier transformer |
| CN106373758B (en) * | 2016-11-08 | 2018-08-17 | 江苏宝亨新电气有限公司 | A kind of transformer high-voltage coil and the mold for manufacturing the coil |
| CN106373757B (en) * | 2016-11-08 | 2018-06-29 | 江苏宝亨新电气有限公司 | A kind of combined transformer high-tension coil |
| CN111326318B (en) * | 2020-02-26 | 2021-08-24 | 广州地铁设计研究院股份有限公司 | Traction rectification dry-type transformer, transformer system and control method thereof |
| CN115101325B (en) * | 2022-07-26 | 2023-11-03 | 南京大全变压器有限公司 | Mixing device for casting multi-winding dry-type transformer coil |
| CN117612835B (en) * | 2024-01-23 | 2024-04-05 | 悉瑞绿色电气(苏州)有限公司 | High-voltage winding for dry-type transformer and dry-type transformer |
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| US6368530B1 (en) * | 1999-12-16 | 2002-04-09 | Square D Company | Method of forming cooling ducts in cast resin coils |
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