CN202307518U - Coil structure of epoxy cast transformer - Google Patents
Coil structure of epoxy cast transformer Download PDFInfo
- Publication number
- CN202307518U CN202307518U CN2011203912665U CN201120391266U CN202307518U CN 202307518 U CN202307518 U CN 202307518U CN 2011203912665 U CN2011203912665 U CN 2011203912665U CN 201120391266 U CN201120391266 U CN 201120391266U CN 202307518 U CN202307518 U CN 202307518U
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Abstract
The utility model discloses a coil structure of an epoxy cast transformer. The coil structure comprises an insulating cylinder and a coil, wherein the coil is wound on the insulating cylinder and comprises line segments and transposition connecting lines; the line segments are connected through the transposition connecting lines; the line segments comprise forward line segments and reverse line segments; the reverse line segments are line segments which are continuously wound from top to bottom perpendicular to the insulating cylinder; the forward line segments are line segments which are continuously wound from bottom to top perpendicular to the insulating cylinder; and the forward line segments and the reverse line segments are arranged on the insulating cylinder at intervals. Due to adoption of the technical scheme, the coil structure has the beneficial effects of low inter-segment voltage, small inter-segment distance, capabilities of effectively improving impact margin of voltage, effectively guaranteeing coil insulation, flexible arrangement of line segments and capabilities of reducing total height of the coil, reducing product weight and reducing the production cost of a product.
Description
Technical field
The utility model relates to a kind of epoxy casting transformer, is specifically related to a kind of loop construction of epoxy casting transformer.
Background technology
In transformer industry, as shown in Figure 2, cylindrical layer winding is a kind of coil pattern that middle-size and small-size transformer often uses, and the coil of this pattern is common in the oil-filled transformer.As shown in Figure 3, epoxy cast dry transformer need be reserved in coil at interval because employed insulating material is an epoxy resin; So the coil of this transformer generally uses subsection cylindrical formula coil pattern; Through intersegmental line 34, also be provided with interlayer connecting line 32 in every section simultaneously between every section, at interval in filling epoxy resin; Both played the effect of insulation, the while makes the filling of coil process epoxy resin again and becomes a firm integral body.But its design concept is exactly the interval that does not have filling epoxy resin in the middle of the common cylindrical layer winding; The insulation property of epoxy resin are poor than transformer oil; After coil is divided into plurality of sections; Both make the coil reserve cast at interval, also reduced the voltage between every section coil simultaneously, thereby just guaranteed the insulation of coil.But in design, also bringing a new problem, is exactly after coil is divided into plurality of sections, adds the consideration section insulation again, has so just increased the height of coil, and the distribution of hop count, the distribution of intersegmental voltage have also increased difficulty of design.
Need a kind of loop construction of epoxy casting transformer, intersegmental voltage is low for this reason, and intersegmental distance is little; Effectively improve the impact allowance of voltage, effectively guarantee coil insulation, simultaneously the line segment flexible arrangement; Reduce the coil total height, reduce product weight, reduce production cost of products.
The utility model content
For solving the problems of the technologies described above, the purpose of the utility model is to provide a kind of intersegmental voltage low, and intersegmental distance is little; Effectively improve the impact allowance of voltage; Effectively guarantee coil insulation, the line segment flexible arrangement reduces the coil total height simultaneously; Reduce product weight, reduce the loop construction of the epoxy casting transformer of production cost of products.
For achieving the above object; The technical scheme of the utility model is following: a kind of loop construction of epoxy cast dry transformer, comprise insulating cylinder and coil, and said coil winding is on said insulating cylinder; Said coil comprises line segment and transposition line; Connect through said transposition line between the said line segment, said line segment comprises positive section line segment and anti-section line segment, and said anti-section line segment be perpendicular to the said insulating cylinder line segment of continuous coiling from top to bottom; Said positive section line segment is that said positive section line segment and said anti-section line segment space are arranged on the said insulating cylinder perpendicular to the said insulating cylinder continuous line segment of coiling from the bottom up.
Preferably, be provided with insulating barrier between the said line segment, said insulating barrier is the epoxy resins insulation layer.
Preferably, the hop count of said positive section line segment is at least one section.
Preferably, the hop count of said anti-section line segment is at least one section.
Preferably, the number of turn of said line segment is at least one circle.
Preferably, the coiling of every circle for single coiling coiling or many coilings and around.
Adopt the beneficial effect of present technique scheme to be: intersegmental voltage is low, and intersegmental distance is little, effectively improves the impact allowance of voltage, effectively guarantees coil insulation, and the line segment flexible arrangement reduces the coil total height simultaneously, reduces product weight, reduces production cost of products.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment technology; To do to introduce simply to the accompanying drawing of required use in the embodiment technical description below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the coil winding structural representation of oil-filled transformer in the prior art.
Fig. 3 is the coil winding structural representation of epoxy cast dry transformer in the prior art.
The numeral corresponding component title represented among the figure with letter:
1. 4. positive sections line segments of insulating cylinder 2. transposition 3. anti-sections line segments of line, 5. insulating barriers, 21. insulating cylinders, 22. interlayer connecting lines, 23. layer insulations, 31. insulating cylinders, 32. interlayer connecting lines, 33. layer insulations, 34. intersegmental line 35. section insulations.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, a kind of embodiment of the utility model, a kind of loop construction of epoxy cast dry transformer; Comprise insulating cylinder 1 and coil; Coil winding is on insulating cylinder 1, and coil comprises line segment and transposition line 2, connects through transposition line 2 between the line segment; Line segment comprises positive section line segment 4 and anti-section line segment 3; Anti-section line segment 3 be perpendicular to insulating cylinder 1 line segment of coiling continuously from top to bottom, and positive section line segment 4 be perpendicular to insulating cylinder 1 line segment of coiling continuously from the bottom up, and positive section line segment 4 is arranged on the insulating cylinder 1 with anti-section line segment 3 spaces.Be provided with insulating barrier 5 between the line segment, insulating barrier 5 is the epoxy resins insulation layer.In the present embodiment, the hop count of anti-section line segment 3 is three sections, and the hop count of positive section line segment 4 is two sections, and the number of turn of every section line segment is a circle, and every circle coiling is single coiling coiling.
Winding method does, line segment is vertical respectively to be provided with insulating cylinder 1, and first section line segment be anti-section line segment, presses sequence number 1,2,3 from top to bottom ... 7,8 carry out coiling; Second section line segment is positive section line segment, from the bottom up by sequence number 9,10,11 ... 15,16 carry out coiling; The 3rd section line segment is anti-section line segment, from top to bottom by sequence number 17,18,19 ... 23,24 carry out coiling; The 4th section line segment is positive section line segment, from the bottom up by sequence number 25,26,27 ... 31,32 carry out coiling; The 5th section is anti-section line segment, from top to bottom by sequence number 33,34,35 ... 39,40 carry out coiling.First section leading-out terminal is connected through transposition line 2 with second section lead-in wire terminal; Second section leading-out terminal is connected through transposition line 2 with the 3rd section lead-in wire terminal; The 3rd section leading-out terminal is connected through transposition line 2 with the 4th section lead-in wire terminal; The 4th section leading-out terminal must be connected through transposition line 2 by lead-in wire terminal with the 5th section, being provided with insulating barrier 5 between the line segment through behind the filling epoxy resin, forms the epoxy resins insulation layer then.After continuous winding was used for epoxy cast dry transformer, the number of turn of each section was seldom, and intersegmental like this voltage is also just lower; Intersegmental distance can contract very for a short time, if heat radiation allows, that just only need be in the end winding point of incoming cables; Improve the impact allowance of voltage for increasing; Strengthen outside several line segment spacings, as long as all the other suitably place several increasing spacings, in order to filling epoxy resin.After epoxy cast dry transformer adopted continuous winding, the layout of line segment was more flexible during design, and distance greatly reduces between line segment, and the total height of coil is reduced, thereby reduced the weight and the production cost of product.
All the other are identical with embodiment 1, and difference is that the hop count of anti-section line segment 3 is at least one section, and the hop count of positive section line segment 4 is at least one section, according to the demand of design of transformer, the hop count of anti-section line segment 3 and positive section line segment 4 are set.
All the other are identical with embodiment 1, and difference is that the number of turn of every section line segment is at least a circle, according to the demand of design of transformer, the number of turn of every section line segment are set.
All the other are identical with embodiment 1, and difference is, every circle coiling for many coilings and around, according to the demand of design of transformer, be provided with and around the quantity of coiling.
Adopt the beneficial effect of present technique scheme to be: intersegmental voltage is low, and intersegmental distance is little, effectively improves the impact allowance of voltage, effectively guarantees coil insulation, and the line segment flexible arrangement reduces the coil total height simultaneously, reduces product weight, reduces production cost of products.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. the loop construction of an epoxy casting transformer; Comprise insulating cylinder and coil, said coil winding is characterized in that on said insulating cylinder; Said coil comprises line segment and transposition line; Connect through said transposition line between the said line segment, said line segment comprises positive section line segment and anti-section line segment, and said anti-section line segment be perpendicular to the said insulating cylinder line segment of continuous coiling from top to bottom; Said positive section line segment is that said positive section line segment and said anti-section line segment space are arranged on the said insulating cylinder perpendicular to the said insulating cylinder continuous line segment of coiling from the bottom up.
2. the loop construction of a kind of epoxy casting transformer according to claim 1 is characterized in that, is provided with insulating barrier between the said line segment, and said insulating barrier is the epoxy resins insulation layer.
3. the loop construction of a kind of epoxy casting transformer according to claim 1 is characterized in that, the hop count of said positive section line segment is at least one section.
4. the loop construction of a kind of epoxy casting transformer according to claim 1 is characterized in that, the hop count of said anti-section line segment is at least one section.
5. the loop construction of a kind of epoxy casting transformer according to claim 1 is characterized in that, the number of turn of said line segment is at least one circle.
6. the loop construction of a kind of epoxy casting transformer according to claim 5 is characterized in that, the coiling of every circle for single coiling coiling or many coilings and around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203912665U CN202307518U (en) | 2011-10-14 | 2011-10-14 | Coil structure of epoxy cast transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203912665U CN202307518U (en) | 2011-10-14 | 2011-10-14 | Coil structure of epoxy cast transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202307518U true CN202307518U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203912665U Expired - Fee Related CN202307518U (en) | 2011-10-14 | 2011-10-14 | Coil structure of epoxy cast transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202307518U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227035A (en) * | 2013-04-12 | 2013-07-31 | 苏州腾冉电气设备有限公司 | Wire cake structure for rectangular coil |
| CN106024335A (en) * | 2016-07-21 | 2016-10-12 | 江西变压器科技股份有限公司 | Odd-number-section continuous coil |
| CN106449078A (en) * | 2016-08-31 | 2017-02-22 | 芜湖金牛电气股份有限公司 | Winding method of transformer coil |
| CN110136934A (en) * | 2019-06-24 | 2019-08-16 | 江苏五洲电力科技有限公司 | A kind of non-circular structure of transformer body of three-phase stereo |
| WO2022126350A1 (en) * | 2020-12-14 | 2022-06-23 | 吴江变压器有限公司 | Interleaved cylindrical winding |
-
2011
- 2011-10-14 CN CN2011203912665U patent/CN202307518U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227035A (en) * | 2013-04-12 | 2013-07-31 | 苏州腾冉电气设备有限公司 | Wire cake structure for rectangular coil |
| CN106024335A (en) * | 2016-07-21 | 2016-10-12 | 江西变压器科技股份有限公司 | Odd-number-section continuous coil |
| CN106024335B (en) * | 2016-07-21 | 2017-12-12 | 江西变压器科技股份有限公司 | A kind of odd number section continuous winding |
| CN106449078A (en) * | 2016-08-31 | 2017-02-22 | 芜湖金牛电气股份有限公司 | Winding method of transformer coil |
| CN110136934A (en) * | 2019-06-24 | 2019-08-16 | 江苏五洲电力科技有限公司 | A kind of non-circular structure of transformer body of three-phase stereo |
| WO2022126350A1 (en) * | 2020-12-14 | 2022-06-23 | 吴江变压器有限公司 | Interleaved cylindrical winding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gao Yinan Inventor after: Lin Fang Inventor before: Gao Yinan Inventor before: Hu Shicheng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: GAO YINAN HU SHICHENG TO: GAO YINAN LIN FANG |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20171014 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |