CN105529164A - Open air-core reactor with adjustable inductance - Google Patents
Open air-core reactor with adjustable inductance Download PDFInfo
- Publication number
- CN105529164A CN105529164A CN201610052908.6A CN201610052908A CN105529164A CN 105529164 A CN105529164 A CN 105529164A CN 201610052908 A CN201610052908 A CN 201610052908A CN 105529164 A CN105529164 A CN 105529164A
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- air core
- core coil
- insulation
- coil
- stationary magazine
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/323—Insulation between winding turns, between winding layers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention relates to an open air-core reactor with an adjustable inductance. The open air-core reactor comprises an air core coil, a clamping element and a base, wherein the clamping element is connected to two ends of the air core coil to clamp the air core coil; the base is located at the lower of the air core coil and fixed at the lower part of the clamping element to fix the air core coil and the clamping element; the air core coil comprises an insulating fixing cylinder, a coil winding with a plurality of taps and a plurality of insulating gaskets; the insulating fixing cylinder is arranged at the middle part of the air core coil; the coil winding sleeves the peripheral outer side of the insulating fixing cylinder and is in a stacked pancake structure; and the plurality of insulating gaskets are arranged between any two adjacent layers of pancake structures and are fixed on the insulating fixing cylinder. Compared with existing similar products, the open air-core reactor with the adjustable inductance mainly has the significant advantages that the overall dead weight of a product is greatly reduced; the volume is reduced; installation and fixation of the product are greatly facilitated; the heat dissipation capability of the coil winding is greatly improved; the product is compact and stable in overall structure, and convenient to assemble and disassemble; and production and post-maintenance are facilitated.
Description
This case is application number: 201310300587.3, and denomination of invention is: the opened hollow reactor that inductance is adjustable, and the applying date is: the divisional application on July 17th, 2013.
Technical field
The present invention relates to a kind of reactor, particularly relate to the opened hollow reactor that a kind of inductance is adjustable.
Background technology
Along with the development of electric power system, also more and more higher to the requirement of power grid quality.Reactive power compensation reactor is equipment indispensable in electric power system, and it can improve the power factor of electrical network, reduces the loss of supply transformer and conveying circuit, improves power supplying efficiency, improves power supply environment.Meanwhile, increasing measurement and testing apparatus also propose higher requirement to reactive power compensation reactor, and feature is: low pressure, electric current are comparatively large, compensation capacity is changeable, inductance is adjustable, can be applicable to medium-high frequency running environment etc.
The inductance of current common opened hollow reactor is generally non-adjustable, and reason is not easily to take out tap when coiling.Adjustable to realize inductance, the mode of normal employing is for many encapsulatings are in parallel and add auxiliary winding, and tap is also unsuitable too many.The air core reactor that domestic newer inductance is adjustable is at present resin-cast to the encapsulating mode that coil adopts, and this mode advantage is that insulation property are better, but shortcoming is: 1, coil heat-sinking capability is deteriorated; 2, the multiple tap of coil strap, cannot corrected by regulating by cast rear section reactance value devious, can only met the required precision to reactance value by the production technology improving coil; 3, to cause product to conduct oneself with dignity excessive for a large amount of epoxy resin used, to the installation of product and fixedly have higher requirement.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve, the adjustable opened hollow reactor of existing inductance exists deadweight, volume causes more greatly installing and fixing inconvenience, and heat dispersion is poor, product once shaping, the problem of the defects such as deviate cannot adjust, precision is lower, and provide that a kind of lightweight is little, heat dispersion is high, easy for operation, precision is high, mounting or dismounting and adjustment convenient, easily produce the adjustable opened hollow reactor of the inductance of easy care.
The technical solution adopted for the present invention to solve the technical problems is: the opened hollow reactor that a kind of inductance is adjustable, and it comprises: air core coil, clamping element and base.Air core coil comprises: insulation stationary magazine creel, is arranged at the middle part of air core coil; There is the coil windings of multiple tap, be sheathed on the outer circumferential of insulation stationary magazine creel, in stacked cake formula structure; Multiple insulation spacer, to be arranged between arbitrary neighborhood two layer cake formula structure and to be fixed on insulation stationary magazine creel; Clamping element, is connected to the two ends of air core coil with the air core coil that is fixedly clamped; Base, be positioned at the below of air core coil and the below being fixed on clamping element with fixation hollow coil and clamping element.
In the opened hollow reactor that inductance as above is adjustable, preferably, air core coil multiple insulation spacers along insulation stationary magazine creel axis be multiple row linearity setting.
In the opened hollow reactor that inductance as above is adjustable, preferably, air core coil also comprises: be arranged at insulation stationary magazine creel and coil windings between, along insulation stationary magazine creel circumferential interval be fixed on insulation stationary magazine creel on many bracing bars; Each row insulation spacer is fixed on a bracing bars.
In the opened hollow reactor that inductance as above is adjustable, preferably, insulation spacer is provided with and engages with the draw-in groove of fixed insulation pad with stay.
In the opened hollow reactor that inductance as above is adjustable, preferably, draw-in groove is dovetail channel-shaped.
In the opened hollow reactor that inductance as above is adjustable, preferably, air core coil also comprises: the lead-out wire of panel structure connects panel; Lead-out wire connection panel is provided with the perforate with the number of taps same number of air core coil, is connected and fixed the tap of air core coil by described perforate, the two ends up and down of lead-out wire connection panel are fixedly connected on the two ends of clamping element respectively by connector.
In the opened hollow reactor that inductance as above is adjustable, preferably, clamping element, comprising:
Upper end plate, is arranged at the upper end of air core coil; Lower end plate, is arranged at the lower end of air core coil; Screw rod, the space surrounded through upper end plate and lower end plate and through insulation stationary magazine creel, with the air core coil that is fixedly clamped.
In the opened hollow reactor that inductance as above is adjustable, preferably, stay is bonded on insulation stationary magazine creel.
In the opened hollow reactor that inductance as above is adjustable, preferably, the material of insulation spacer is selected from SMC molding compound or DMC molding compound; The material of insulation stationary magazine creel is epoxy material.
In the opened hollow reactor that inductance as above is adjustable, preferably, the material of stay is fiberglass.
In the opened hollow reactor that inductance as above is adjustable, preferably, the face contacted with air core coil of insulation spacer is formed with multiple projection.
In the opened hollow reactor that inductance as above is adjustable, preferably, between described projection, be formed with through hole.
The invention has the beneficial effects as follows: the opened hollow reactor that this inductance is adjustable is compared with existing similar-type products, mainly there is following significant advantage: owing to not re-using a large amount of epoxy resin, coil windings is encapsulated, and adopt insulating spacer to separate coil windings, therefore the deadweight of Total Product is significantly alleviated and volume reduction, be very easy to the installation of product and fix, simultaneously, the heat-sinking capability of coil windings significantly improves, the stability in use of product, reliability and precision are improved, and useful life is extended; Adopt clamping element to clamp air core coil, make Total Product compact conformation, firm, easy for operation, and parts are less, assembling adjustment and dismounting convenient, be convenient to produce and later maintenance.
Accompanying drawing explanation
Fig. 1 is the main TV structure cross-sectional schematic of a kind of embodiment provided by the invention.
Fig. 2 is the plan structure cross-sectional schematic of a kind of embodiment provided by the invention.
Fig. 3 is the perspective view of a kind of embodiment provided by the invention.
In figure, symbol description is as follows:
1 base, 6 air core coils,
61 insulation stationary magazine creels, 62 coil windings, 63 insulation spacers, 64 stays,
65 lead-out wire connecting line panels, 621 taps, 631 draw-in grooves,
End plate, 52 times end plates, 53 screw rods on 5 clamping elements, 51.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
See Fig. 1 to Fig. 3, embodiments provide the opened hollow reactor that a kind of inductance is adjustable, it comprises: air core coil 6, clamping element 5 and base 1.Base 1, be positioned at the below of air core coil 6 and the below being fixed on clamping element 5 with support fixation hollow coil 6 and clamping element 5.
Wherein, air core coil 6 comprises: insulation stationary magazine creel 61, coil windings 62 and insulation spacer 63.
The plain conductor coiling being surrounded by insulation by surface for the coil windings 62 of reactive power compensation forms, in winding process, first the radial continuous coiling of wire edge insulation stationary magazine creel 61 is become a pie (pie of hollow), again the axially-aligned of multiple pie edge insulation stationary magazine creel 61 is formed stacked cake formula structure, this stacked cake formula structure due to surface area large, perfect heat-dissipating.In coil windings 62, pick out multiple tap (joint) 621, to be connected to external circuit, because the multiple taps arranged are connected to the diverse location place of coil windings 62, multiple tap is connected and/or parallel combination, the inductance that can realize opened hollow reactor is adjustable, and then meets the demand of external circuit to different induction.
In practice, the general head end in coil windings 62 and end arrange tap respectively, between the head end and end of coil windings 62, one or more tap is being set again, to the tap of head end be positioned at as high pressure end of incoming cables (input), to be positioned at the tap of end as low-pressure line-outgoing end (output), external circuit is connected by the opened hollow reactor that high pressure end of incoming cables is adjustable with low-pressure line-outgoing end and this inductance.For the ease of the adjustment of inductance, one short-circuit line is set at low-pressure line-outgoing end, to make the low-pressure line-outgoing end of coil windings fix, only changes connection and the adjustable inductance of tap between first and last end and low-pressure line-outgoing end (short-circuit line).The material of plain conductor is preferably copper or aluminium.Coil windings can be one, and can also be multiple, the present embodiment limit this.
Multiple insulation spacer 63 is provided with between any adjacent two layers cake formula structure, this insulation spacer 63 is fixed on insulation stationary magazine creel 61, owing to having separated certain distance by insulation spacer 63 between adjacent two layers cake formula structure, therefore improve the air circulation of air core coil, improve the radiating effect of the adjustable opened hollow reactor of this inductance, make the clear in structure between layers of cake formula structure simultaneously, reduce the complexity of coiling work.In order to strengthen the mobility of air further, multiple insulation spacers of air core coil are that multiple row linearity is arranged, and the shape of insulation spacer can be rectangle, and can also be trapezoidal, the present embodiment limit this.The material of insulation spacer 63 is the material simultaneously with heat resistance and compressive property, be preferably SMC (SheetMouldingCompound, sheet molding compound) at least one in molding compound and DMC (DoughMouldingCompound, polyester material group) molding compound.
As can be seen from Fig. 2 ~ 3, in the circumference of air core coil, have the multiple row insulation spacer 63 of the linearly setting of axis along insulation stationary magazine creel 61, the external diameter of insulation spacer 63 formation of every one deck is greater than the maximum outside diameter of air core coil, comes off to avoid the coil windings of coiling.
In addition, in order to improve the radiating effect of air core coil further, multiple intensive projection can be formed with in one of upper and lower side of insulation spacer 63 or both sides, make multiple projection while support air core coil, the space between projection can be utilized again to distribute the heat of coil generation, coil between two pads also can be dispelled the heat well, make the circumference of coil dispel the heat thus more even.
Certainly, above-mentioned multiple projection can be unordered, also can be the circumference along air core coil, be formed line by line in the radial direction, can also be the concavo-convex spacer structure being formed with multiple row tooth bar sample on insulation spacer.
In addition, in order to contribute to the flowing of heat further, through hole can also be formed between the projection of insulation spacer 63, two sidewinds of insulation spacer are communicated.
Insulation spacer is formed projection or laciniation, the frictional force between air core coil and pad is strengthened, also can help avoid air core coil thus and move left and right.
In actual applications, be provided with insulation spacer, can strengthen the insulation property between every layer cake formula structure between the multilayer cake formula structure of coil windings 62, even if under lightning impulse and some over-voltage condition, insulation property are still good; Any two cake formula structures are separated certain space by insulation spacer, make the radial direction of coil windings have heat dissipation channel, enhance the heat-sinking capability of air core coil, thus reach the object reducing volume, save material.
Insulation stationary magazine creel 61 is arranged at the middle part of air core coil 6 to fetter the shape of coil windings 62, when wire turns to coil windings 62 around it, the shape of coil windings 62 can be made close with the shape of insulation stationary magazine creel 61.The material of insulation stationary magazine creel 61 is epoxy material, is preferably soaked with the glass fiber of epoxy resin.
In order to make the installation and removal of insulation spacer 63 simple and convenient, many bracing bars 64 are provided with between insulation stationary magazine creel 61 and insulation spacer 63, the length direction of each bracing bars 64 and the axial consistent of air core coil, many bracing bars 64 intervals are fixed in the circumference of insulation stationary magazine creel 61, preferably, stay 64 is bonded on insulation stationary magazine creel 61.Further, it insulation spacer 63 is oblong-shaped structure, preferably on rectangular a certain bar limit, be provided with draw-in groove 631, this draw-in groove 631 engages with fixed insulation pad 63 with stay 64, and draw-in groove is preferably in dovetail channel-shaped (cross section of stay and the notch of insulation spacer coordinate make both can mutually engage).The material of stay 64 is preferably fiberglass.
In the application, stay 64 makes the coil windings of coiling not abut against on insulation stationary magazine creel, certain longitudinal air channel (there has also been heat dissipation channel in the axis of reactor) is left between coil windings and insulation stationary magazine creel, improve the radiating effect of reactor, further enhancing the heat-sinking capability of air core coil, reduce volume (if coil is directly wound on epoxy cylinder (have insulation spacer without stay), the heat-sinking capability of coil inner surface is very low, distribute heat can only be carried out by the heat transfer of epoxy cylinder, affect the heat radiation in air channel between cake simultaneously).
Be provided with lead-out wire in the side of air core coil and connect panel 65, the two ends of clamping element 5 are fixed at the two ends of lead-out wire connection panel 65 by connector, the multiple hole of its upper shed, for fixing multiple lead-out wire terminal, this lead-out wire terminal and tap connect one to one, and access the adjustable opened hollow reactor of this inductance to facilitate external circuit.
Clamping element 5 comprises: upper end plate 51, lower end plate 52 and screw rod 53.Upper end plate 51 is arranged at the upper end of air core coil 6, is provided with the screw hole that screw rod 53 passes; Lower end plate 52 is arranged at the lower end of air core coil 6, is provided with the screw hole that screw rod 53 passes, and base is fixed on below lower end plate 52; Screw rod 53, the space surrounded through upper end plate 51 and lower end plate 52 and through insulation stationary magazine creel 61 by screw hole, with the air core coil 6 that is fixedly clamped, the opened hollow reactor making this inductance adjustable is as a whole, in integral structure.Wherein, on the upper end plate that the two ends that lead-out wire connects panel 65 are individually fixed in clamping element 5 by connector and lower end plate.
In other examples, screw rod C type draw-in groove can be replaced, the height of this C type draw-in groove and the height of air core coil 6 adapt, and are arranged at the outside of air core coil 6, its top and bottom are individually fixed in end plate and lower end plate, and the present embodiment does not limit this.Upper and lower end plate material is isolation material, is preferably epoxy resin bonded fiber.The shape of upper and lower end plate is preferably circular.The middle part of upper and lower end plate is provided with circular hole, and this circular hole is corresponding with the nozzle of insulation stationary magazine creel 61.
Because screw rod 53 is fixed by nut at screw hole place, and compress air core coil to produce frictional force by upper and lower end plate, air core coil is avoided to move left and right, lower end plate is fixed on base by screw rod simultaneously, can also be bolted on base, air cooling coil and clamping element are not easily moved left and right.
In sum, the opened hollow reactor that inductance provided by the invention is adjustable is encapsulated coil windings owing to not using a large amount of epoxy resin, and adopt insulation spacer to separate the adjacent two layers cake formula structure of coil windings, therefore comparatively light, the small volume of the deadweight of Total Product, facilitate the installation of product and fix, meanwhile, maintaining the heat-sinking capability that coil windings is good, the stability in use of product, reliability and precision are higher, long service life; Adopt clamping element to clamp air core coil, Total Product structure is integrated, and firmly compact, easy for operation, and parts are less, assembling adjusts and dismounting is convenient, are convenient to produce and later maintenance.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the opened hollow reactor that inductance is adjustable, is characterized in that, comprising:
Air core coil (6);
Clamping element (5), is connected to the two ends of air core coil (6) with the air core coil that is fixedly clamped (6); With
Base (1), be positioned at the below of air core coil (6) and the below being fixed on clamping element (5) with fixation hollow coil (6) and clamping element (5), wherein,
Air core coil (6), comprising:
Insulation stationary magazine creel (61), is arranged at the middle part of air core coil (6);
There is the coil windings (62) of multiple tap (621), be sheathed on the outer circumferential of insulation stationary magazine creel (61), in stacked cake formula structure; With
Multiple insulation spacer (63), to be arranged between arbitrary neighborhood two layer cake formula structure and to be fixed in insulation stationary magazine creel (61),
Air core coil (6) also comprises: the lead-out wire of panel structure connects panel (65),
Lead-out wire connection panel (65) is provided with the perforate with the tap of air core coil (6) (621) number same number, be connected and fixed the tap (621) of air core coil by described perforate, the two ends up and down of lead-out wire connection panel (65) are fixedly connected on the two ends of clamping element (5) respectively by connector;
The face contacted with air core coil (6) of insulation spacer (63) is formed with multiple projection.
2. opened hollow reactor according to claim 1, is characterized in that,
Multiple insulation spacers (63) of air core coil be the setting of multiple row linearity along the axis of insulation stationary magazine creel (61).
3. opened hollow reactor according to claim 2, is characterized in that,
Air core coil (6) also comprises: to be arranged between insulation stationary magazine creel (61) and coil windings (62), to be fixed on many bracing bars (64) on insulate stationary magazine creel (61) along the circumferential interval of insulation stationary magazine creel (61);
Each row insulation spacer (63) is fixed on a bracing bars (64).
4. opened hollow reactor according to claim 3, is characterized in that, insulation spacer (63) is provided with and engages with the draw-in groove of fixed insulation pad (63) (631) with stay (64).
5. opened hollow reactor according to claim 4, is characterized in that,
Draw-in groove (631) is in dovetail channel-shaped.
6. opened hollow reactor according to claim 1, is characterized in that,
Clamping element (5), comprising:
Upper end plate (51), is arranged at the upper end of air core coil (6);
Lower end plate (52), is arranged at the lower end of air core coil (6);
Screw rod (53), the space surrounded through upper end plate (51) and lower end plate (52) and through insulation stationary magazine creel (61), with the air core coil that is fixedly clamped (6).
7. opened hollow reactor according to claim 3, is characterized in that,
Stay (64) is bonded in insulation stationary magazine creel (61).
8. opened hollow reactor according to claim 1, is characterized in that,
The material of insulation spacer (63) is SMC molding compound or DMC molding compound,
The material of insulation stationary magazine creel (61) is epoxy material.
9. opened hollow reactor according to claim 3, is characterized in that,
The material of stay (64) is fiberglass.
10. opened hollow reactor according to claim 1, is characterized in that,
Through hole is formed between described projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610052908.6A CN105529164B (en) | 2013-07-17 | 2013-07-17 | The adjustable opened hollow reactor of inductance |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310300587.3A CN103354158B (en) | 2013-07-17 | 2013-07-17 | The adjustable opened hollow reactor of inductance |
| CN201610052908.6A CN105529164B (en) | 2013-07-17 | 2013-07-17 | The adjustable opened hollow reactor of inductance |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310300587.3A Division CN103354158B (en) | 2013-07-17 | 2013-07-17 | The adjustable opened hollow reactor of inductance |
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| CN105529164A true CN105529164A (en) | 2016-04-27 |
| CN105529164B CN105529164B (en) | 2017-06-27 |
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| CN201310300587.3A Active CN103354158B (en) | 2013-07-17 | 2013-07-17 | The adjustable opened hollow reactor of inductance |
| CN201610052908.6A Active CN105529164B (en) | 2013-07-17 | 2013-07-17 | The adjustable opened hollow reactor of inductance |
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| CN201310300587.3A Active CN103354158B (en) | 2013-07-17 | 2013-07-17 | The adjustable opened hollow reactor of inductance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106252038A (en) * | 2016-07-27 | 2016-12-21 | 中国科学院等离子体物理研究所 | A kind of high power big electric current dry-type hollow water-cooled cast-type reactor |
| CN110491657A (en) * | 2019-07-13 | 2019-11-22 | 安徽伊法拉电气有限公司 | A kind of new transformer insulating sheath |
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| CN103354158B (en) * | 2013-07-17 | 2016-07-06 | 北京电力设备总厂有限公司 | The adjustable opened hollow reactor of inductance |
| CN103558530A (en) * | 2013-11-20 | 2014-02-05 | 国家电网公司 | Secondary adjustable compensating inductor for PT voltage withstand induction for GIS |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105529164B (en) | 2017-06-27 |
| CN103354158A (en) | 2013-10-16 |
| CN103354158B (en) | 2016-07-06 |
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