CN106653317B - The low voltage foil winding loop construction and capacitance-adjustable transformer of capacitance-adjustable transformer - Google Patents
The low voltage foil winding loop construction and capacitance-adjustable transformer of capacitance-adjustable transformer Download PDFInfo
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- CN106653317B CN106653317B CN201710089927.0A CN201710089927A CN106653317B CN 106653317 B CN106653317 B CN 106653317B CN 201710089927 A CN201710089927 A CN 201710089927A CN 106653317 B CN106653317 B CN 106653317B
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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
- H01F27/2847—Sheets; Strips
-
- 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
-
- 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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- 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
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- 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
-
- 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
- H01F27/2847—Sheets; Strips
- H01F2027/2857—Coil formed from wound foil conductor
Abstract
The present invention relates to transformer technology fields, more particularly, to the low voltage foil winding loop construction and capacitance-adjustable transformer of a kind of capacitance-adjustable transformer.The low voltage foil winding loop construction of the capacitance-adjustable transformer includes：First winding, the second winding and the tertiary winding；First winding is from top to bottom arranged concentrically successively with the second winding；First winding and the second windings in series are in parallel；The tertiary winding is sleeved on outside the first winding and the second winding；The tertiary winding and the first winding or the second windings in series.When being in low capacity state due to capacity transfer transformation, the number of turns of main empty path far from capacitance-adjustable transformer is more, so that the induction reactance of capacitance-adjustable transformer increases, the short-circuit impedance for the capacitance-adjustable transformer being mainly made of induction reactance increases, to reduce the difference under large capacity and under low capacity between short-circuit impedance, so that capacity transfer becomes the short-circuit impedance consistency being pressed under large capacity and low capacity and increases, so that capacitance-adjustable transformer short-circuit impedance qualification nargin under large capacity and low capacity increases.
Description
Technical field
The present invention relates to transformer technology fields, a kind of low voltage foil winding loop construction more particularly, to capacitance-adjustable transformer and
Capacitance-adjustable transformer.
Background technology
The own loss of transformer is made of no-load loss and load loss.The no-load loss of transformer is in transformer terminal electricity
Press it is constant in the case of exist in real time, and size is constant, and load loss is as load changes and changes.When evening shop equipment or
In the case that home-use electricity is few, transformer load loss is extremely low, but transformer no-load loss it is constant in addition due to
Electricity low-voltage rises and increases；When just come into operation residential quarters or also very low factory's electricity consumption for just having opened when, work as seasonality
The no-load loss of the big occasion of electricity consumption difference, transformer will not become smaller as electricity consumption is small, occur that " big horse traction is small at this time
Vehicle phenomenon " will greatly save the energy if reducing transformer noload losses using certain measure.Therefore capacitance-adjustable transformer goes out
The above problem is now well solved.
When electricity consumption is few, capacitance-adjustable transformer is converted into low capacity operation, the no-load loss of transformer will be greatly reduced.
Loaded capacity-regulated change is not in power-off in capacity transfer, and power supply reliability is improved while energy saving.But either capacity transfer transformation
Device or loaded capacity-regulated transformer, majority carry out star and triangle transformation using high-voltage winding, and low pressure winding is connected in series to
Conversion in parallel.Low pressure uses the transformer of electromagnetic wire coiling, when being converted every time in addition to transformer, between winding wire rapidly because of stress
Variation, appearance is radial outer with axial shake, and stress is even more serious between line when transformer appearance is short-circuit, and common 10kV transformers all need
Specially treated such as dipping lacquer, which makes coil be integrally formed, to be solved, but which increase manufacture difficulty and increases production hour.And
Low pressure winding can be solved the above problems using foil by the way of, and capacitance-adjustable transformer may be designed in foil around form.
But the wound capacitance-adjustable transformer of current foil is using first coiling common segment winding, then the rear coiling string outside common segment winding
Parallel winding, short-circuit impedance difference is larger when causing transformer size and capacity in this way, and it is qualified to be easy to cause impedance under a kind of capacity,
Underproof phenomenon under another capacity.
In addition when the coiling of foil coiling layer insulation use cable paper when, because paper intensity is relatively low, the first winding and second around
Coiling simultaneously is organized, coiling slightly imbalance easily causes layer short circuit between foil.When using DMD prepreg cloths, because prepreg cloth is suitable for doing
Become, be not suitable for oily change, if becoming longtime running for oil, insulation damages will be caused, finally cause layer short circuit.Because of capacity transfer transformation
The outer ejectment of device is more, and common foil is not suitable for capacitance-adjustable transformer around the fixed form of starting of transformer.
Invention content
The purpose of the present invention is to provide low voltage foil winding loop construction and capacitance-adjustable transformers, to solve to exist in the prior art
Transformer large capacity and low capacity under short-circuit impedance differ larger technical problem.
The present invention provides a kind of low voltage foil winding loop construction of capacitance-adjustable transformer, the low-voltage foil coiling of the capacitance-adjustable transformer
Coil structures include：First winding, the second winding and the tertiary winding；First winding and second winding from top to bottom according to
It is secondary to be arranged concentrically；First winding and second windings in series are in parallel；The tertiary winding be sleeved on described first around
Outside group and second winding；The tertiary winding and second windings in series.
Further, second winding is formed by the second conductive foil coiling, the tertiary winding by third conductive foil around
System is formed；The ending end of second conductive foil is connect with the starting end of the third conductive foil by way of electric resistance welding.
Further, first winding is formed by the first conductive foil coiling；The adjacent two layers first of first winding
Between conductive foil, between the second conductive foil of adjacent two layers of second winding and the adjacent two layers third of the tertiary winding
A layer insulating paper is both provided between conductive foil；The layer insulating paper is oil resistivity water chestnut lattice glue DMD paper.
Further, the thickness of the layer insulating paper is 0.15-0.20mm.
Further, the starting end of first conductive foil is provided with the outer ejectment of the first starting end；Second conductive foil
Starting end be provided with the outer ejectment of the second starting end；The outer ejectment of first starting end passes through with the outer ejectment of second starting end
Insulating protector is fixedly connected；The top and bottom of the insulating protector are respectively positioned on first winding and second winding
Inside.
Further, the insulating protector includes insulating board and pyrocondensation belt；It is set in the outer ejectment of first starting end
First mounting hole there are two setting；There are two the second mounting holes for setting in the outer ejectment of second starting end；On the insulating board
There are four third mounting holes for setting；Third mounting hole described in two of which is arranged in a one-to-one correspondence with two first mounting holes；
Other two described third mounting hole is arranged in a one-to-one correspondence with two second mounting holes；The pyrocondensation belt is threaded through described
In one mounting hole, second mounting hole and the third mounting hole, by ejectment and described second outside first starting end
The outer ejectment of starting end is fixed.
Further, the upper end of the outer ejectment of first starting end and the upper end of the outer ejectment of second starting end are stretched out
The upper end of first winding；The lower end of the outer ejectment of first starting end and the lower end of the outer ejectment of second starting end are stretched
The lower end for going out second winding is respectively used to be auxiliarily fixed the starting end of first conductive foil and second conductive foil
Starting end；First fixed hole position is in the lower end of ejectment outside first starting end；Second fixed hole position is in described
The lower end of the outer ejectment of two starting ends.
Further, the starting end of the third conductive foil is provided with the outer ejectment of third starting end, the third starting end
The upper end of the tertiary winding is stretched out in the upper end of outer ejectment, is used for extraction wire；It stretches the lower end of the outer ejectment of the third starting end
The lower end for going out the tertiary winding, the starting end for the tertiary winding to be auxiliarily fixed；
The ending end of first conductive foil is provided with ejectment outside the first ending end, and ejectment is upper outside first ending end
The upper end of the tertiary winding is stretched out at end, and the lower end of ejectment is located at the inside of the tertiary winding outside first ending end.
Further, the present invention also provides a kind of capacitance-adjustable transformer, the capacitance-adjustable transformer includes as described in the present invention
The low voltage foil winding loop construction of capacitance-adjustable transformer.
The low voltage foil winding loop construction of capacitance-adjustable transformer provided by the invention, the first winding and the second winding be located at third around
The inside of group, the tertiary winding and the second windings in series.When in use, user is by the first winding and the second winding parallel, at this point,
The tertiary winding and the first winding, the second windings in series, capacitance-adjustable transformer are in large capacity state.User is by the first winding and
Two windings in series, at this point, the first winding, the second winding are connected with tertiary winding three, capacitance-adjustable transformer is in low capacity state.
The low voltage foil winding loop construction of capacitance-adjustable transformer provided by the invention, since capacity transfer transformation is in low capacity state
When, the first winding and the second winding are located in the tertiary winding, main sky of the tertiary winding between capacitance-adjustable transformer high-low pressure winding
Road, the first winding and the second winding are far from the main empty path between capacitance-adjustable transformer high-low pressure winding, and the master far from capacitance-adjustable transformer
The number of turns of airway is more so that the induction reactance of capacitance-adjustable transformer increases, the short-circuit impedance for the capacitance-adjustable transformer being mainly made of induction reactance
Increase, to reduce the difference under large capacity and under low capacity between short-circuit impedance so that capacitance-adjustable transformer is in large capacity and small
Short-circuit impedance consistency under capacity increases, so that capacitance-adjustable transformer short-circuit impedance qualification under large capacity and low capacity is abundant
Degree increases, and concrete principle is as follows：
Capacitance-adjustable transformer requires transformer under size and capacity, and the standard value of short-circuit impedance is equal.But capacitance-adjustable transformer
Capacity is as follows：315kVA when large capacity, 100kVA when low capacity, when transformer high-voltage is into planet triangular transformation, low pressure is gone here and there
When parallel inverter, if low pressure winding the number of turns is evenly distributed, theoretically the capacity equal with large capacity short-circuit impedance is 105kVA,
The absolute value of short-circuit impedance is smaller bigger of the capacity of same voltage class, therefore short-circuit impedance is inclined for 100kVA
It is small, if the case where above-mentioned low-voltage coil is distributed for low capacity when the first winding of transformer and the second winding in the outer of the tertiary winding
The short-circuit impedance in portion, transformer will become smaller, therefore will occur with the inconsistent more serious phenomenon of impedance when large capacity, if
The tertiary winding is arranged outside the first winding and the second winding by this patent for above-mentioned low-voltage coil, and Transformer Short Circuit Impedance will be opposite
Increase, increases so that capacity transfer becomes the short-circuit impedance consistency being pressed under large capacity and low capacity, so that capacity transfer transformation
Device short-circuit impedance qualification nargin under large capacity and low capacity increases.
This patent alsos for avoiding since ejectment is placed on coil outside ejectment outside the first starting end and the second starting end simultaneously
Inside, suffered support force and chucking power are weaker, lift one's head and easily relatively move and cause the problem of short circuit, provide fixed form.This
Patent also improves layer insulation materials, and the fixed form that lead copper bar is lifted one's head in lower end is provided for coil winding.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the partial structural diagram of low voltage foil winding loop construction provided in an embodiment of the present invention；
Fig. 2 is the structural representation of the outer ejectment of the first starting end provided in an embodiment of the present invention and the outer ejectment of the second starting end
Figure；
Fig. 3 is the structural schematic diagram of insulating board provided in an embodiment of the present invention；
Fig. 4 is that the insulating paper that the outer ejectment of the first starting ends for providing of Fig. 2, the outer ejectment of the second starting end and Fig. 3 are provided is hardened
The structural schematic diagram of conjunction；
Fig. 5 is the structural schematic diagram of the outer ejectment of third starting end provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of winding mould provided in an embodiment of the present invention and baffle；
Fig. 7 is another structural schematic diagram of winding mould provided in an embodiment of the present invention and baffle；
Fig. 8 is the structural schematic diagram of third conductive foil starting end provided in an embodiment of the present invention；
Fig. 9 be the second conductive foil provided in an embodiment of the present invention ending end, third conductive foil starting end and winding former
The structural schematic diagram of tool.
Reference numeral：
The first windings of 1-；The second windings of 2-；The 3- tertiary windings；
The outer ejectment of the first starting ends of 4-；The outer ejectment of 5- thirds starting end；Ejectment outside 6- thirds ending end；
7- first end insulating papers；8- second end insulating papers；9- section insulation paper；
10- insulating paper cylinders；The outer ejectment of the second starting ends of 11-；The first mounting holes of 12-；
The second mounting holes of 13-；14- insulating boards；15- third mounting holes；
16- pyrocondensation belts；Ejectment outside the endings of 17- first end；18- winding moulds；
19- baffles；20- top boards；21- lower platens；
22- mounting holes；23- reserves foil docking area；The first conductive foils of 101-；
The second conductive foils of 201-；301- third conductive foils.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 is the partial structural diagram of low voltage foil winding loop construction provided in an embodiment of the present invention；As shown in Figure 1, this
A kind of low voltage foil winding loop construction that inventive embodiments provide, low voltage foil winding loop construction include：First winding 1, the second winding 2
And the tertiary winding 3；First winding 1 is from top to bottom arranged concentrically successively with the second winding 2；First winding 1 and the second winding 2 are gone here and there
Connection is in parallel；The tertiary winding 3 is sleeved on outside the first winding 1 and the second winding 2；The tertiary winding 3 is connected with the second winding 2.
Wherein, the tertiary winding 3 can also connect with the first winding 1.
The low voltage foil winding loop construction of capacitance-adjustable transformer provided in an embodiment of the present invention, the first winding 1 and the second winding 2
In the inside of the tertiary winding 3, the tertiary winding 3 is connected with the second winding 2.When in use, user by the first winding 1 and second around
Group 2 is in parallel, at this point, the tertiary winding 3 is connected with the first winding 1, the second winding 2, capacitance-adjustable transformer is in large capacity state.It uses
Person connects the first winding 1 with the second winding 2, at this point, the first winding 1, the second winding 2 are connected with 3 three of the tertiary winding, capacity transfer
Transformer is in low capacity state.
Low voltage foil winding loop construction provided in an embodiment of the present invention, when being in low capacity state due to capacity transfer transformation, first
Winding 1 and the second winding 2 are located in the tertiary winding 3, main empty path of the tertiary winding 3 between capacitance-adjustable transformer high-low pressure winding,
First winding 1 and the second winding 2 are far from the main empty path between capacitance-adjustable transformer high-low pressure winding, and the main sky far from capacitance-adjustable transformer
The number of turns in road is more so that the induction reactance of capacitance-adjustable transformer increases, and the short-circuit impedance for the capacitance-adjustable transformer being mainly made of induction reactance increases
Greatly, to reduce the difference under large capacity and under low capacity between short-circuit impedance so that capacitance-adjustable transformer is in large capacity and little Rong
Short-circuit impedance consistency under amount increases, so that capacitance-adjustable transformer short-circuit impedance qualification nargin under large capacity and low capacity
Increase, concrete principle is as follows：
Capacitance-adjustable transformer requires transformer under size and capacity, and the standard value of short-circuit impedance is equal.But capacitance-adjustable transformer
Capacity is as follows：315kVA when large capacity, 100kVA when low capacity, when transformer high-voltage is into planet triangular transformation, low pressure is gone here and there
When parallel inverter, if low pressure winding the number of turns is evenly distributed, theoretically the capacity equal with large capacity short-circuit impedance is 105kVA,
The absolute value of short-circuit impedance is smaller bigger of the capacity of same voltage class, therefore short-circuit impedance is inclined for 100kVA
It is small, if above-mentioned low-voltage coil be distributed the case where for low capacity when the first winding of transformer and the second winding in the tertiary winding
The short-circuit impedance of outside, transformer will become smaller, therefore will occur with the inconsistent more serious phenomenon of impedance when large capacity, such as
The tertiary winding is arranged outside the first winding and the second winding by this patent for the above-mentioned low-voltage coil of fruit, and Transformer Short Circuit Impedance is by phase
To increasing, increase so that capacity transfer becomes the short-circuit impedance consistency being pressed under large capacity and low capacity, so that capacity transfer becomes
Depressor short-circuit impedance qualification nargin under large capacity and low capacity increases.
Wherein, insulating paper cylinder 10 is set between the first winding 1, the second winding 2 and iron core, and insulating paper cylinder 10 is sleeved on first
Outside winding 1 and the second winding 2.
Fig. 6 is the structural schematic diagram of winding mould provided in an embodiment of the present invention and baffle；Fig. 7 carries for the embodiment of the present invention
The winding mould of confession and another structural schematic diagram of baffle；Fig. 9 be the second conductive foil provided in an embodiment of the present invention ending end,
The starting end of third conductive foil and the structural schematic diagram of winding mould, as shown in Fig. 6, Fig. 7 and Fig. 9, further, the present embodiment
Low voltage foil winding loop construction processing technology include the following steps：
1) by the starting end of the starting end of the first conductive foil 101 and the second conductive foil 201 along the winding mould 18 of foil winding equipment
Axial direction compartment of terrain is fixed on winding mould 18 successively, using foil winding equipment by the first conductive foil 101 and the second conductive foil 201 around
System presets the number of turns, to form the first winding 1 and the second winding 2；
2) by the starting end of third conductive foil 301 and the ending end of the first conductive foil 101 or the knot of the second conductive foil 201
Tail end is connected, and the number of turns is preset in 301 coiling of third conductive foil in the outer surface of the first winding 1 and the second winding 2 using foil winding equipment,
To form the tertiary winding 3.
Further, in step 1) by the starting end of the starting end of the first conductive foil 101 and the second conductive foil 201 along foil around
Compartment of terrain is fixed on winding mould 18 axial direction of the winding mould 18 of machine successively, including：
In 18 upper edge of winding mould, it is axially spaced two baffles 19 of processing, the starting end of the first conductive foil 101 and the
The starting end of two conductive foils 201 is respectively positioned between two baffles 19, by ejectment outside ejectment 4 outside the first starting end and the second starting end
11 one end is fixedly connected with one of baffle 19, by ejectment 4 outside the first starting end with outside the second starting end ejectment 11 it is another
One end is fixedly connected with another baffle 19.
In the present embodiment, by ejectment 4 outside the first starting end and the by way of baffle 19 is arranged on winding mould 18
The outer ejectment 11 of two starting ends is fixed with winding mould 18, and the method is simple, can fix more than two multiple draw outside simultaneously
Row, convenient for users to operation.And it can only be fixed outside one draw using the fixing means slotted on winding mould in the prior art
Row, it has not been convenient to which user operates.
Further, the outer ejectment 4 of the first starting end, the outer ejectment 11 of the second starting end and the fixing means of baffle 19 include：
Mounting hole 22 will be manufactured on lower platen 21 and top board 20, lower platen 21 is welded on baffle 19, first is opened
One end of the outer ejectment of ejectment 4 and the second starting end 11 is placed on lower platen 21 outside beginning, with top board 20 by the first starting end
Outer ejectment 4 and the outer ejectment 11 of second end starting end are depressed, and bolt is threaded through the mounting hole on top board 20 and lower platen 21
In 22, ejectment outside ejectment 4 and the second starting end outside the first starting end can be completed plus nut and tightening in the other side of bolt
The fixation of 11 one end and baffle 19.The other end and baffle 19 of ejectment 11 outside first starting end, 4 and second starting end of outer ejectment
Fixation in the same way.
Further, thickness of the thickness of the thickness of the first conductive foil 101, the second conductive foil 201 with third conductive foil 301
It spends equal.The width of first conductive foil 101 is equal with the width of the second conductive foil 201 namely the first conductive foil 101 is led with second
201 uniform thickness of electric foil is wide.
On the basis of the above embodiments, further, the second winding 2 is formed by 201 coiling of the second conductive foil, third around
Group 3 is formed by 301 coiling of third conductive foil；The ending end of second conductive foil 201 passes through electricity with the starting end of third conductive foil 301
The mode of welding resistance connects.
In the present embodiment, the starting end of the ending end of the second conductive foil 201 and third conductive foil 301 is passed through into electric resistance welding
Mode connects, that is, the method by electric resistance welding connects the second winding 2 with the tertiary winding 3.At this point, the present embodiment is using electricity
Welding resistance has reached the ending end at the ending end and third conductive foil 301 of the second conductive foil of coil interior welds 201, without logical
It crosses external draw and discharges into row series connection convenient for users to process operation.And in the prior art, the tail portion of the second winding 2 and third around
The stem of group 3 is welded in coil outer, therefore most producers have still continued to use this custom, or in order to make the second winding 2
It is welded in coil inside and the tertiary winding 3, using argon arc welding, copper foil and aluminium foil need the fire weldering welded using oxygen-acetylene to carry out
Welding.But argon arc welding need to grasp certain technical ability, and oxygen-acetylene is welded with fire explosion danger, and many producers all use cold pressing at present
Weldering or electric resistance welding.When being welded using resistance welding, because the throat depth of soldering turret is shorter, wider copper foil or aluminium foil can not be docked.Cause
This draws row in the ending welding of the second winding 2 with soldering turret and draws row's docking with the tertiary winding 3.This operation is more complicated.
Further, the ending end of the second conductive foil 201 and the starting end of third conductive foil 301 are by way of electric resistance welding
Connection, includes the following steps：
The starting end at the ending end of the second conductive foil 201 and third conductive foil 301 is moved to the jig of foil winding equipment, profit
The two is welded with the method for electric resistance welding, and the weld of the two is pounded flat.It specifically, can be by the ending of the second conductive foil 201
The starting end of end and third conductive foil 301 moves the jig after coil winding machine to, and two foils are aligned, with common short larynx carbon composition resistor
It is welded, is moved pad on winding former to after welding, upper plank or millboard are padded into coiling top, by pad
It is pounded forward or backward with hammer flat.
Fig. 8 is the structural schematic diagram of third conductive foil starting end provided in an embodiment of the present invention；As shown in figure 8, further
The starting end on ground, third conductive foil 301 is provided with reserved foil docking area 23, which is located at third conductive foil
301 starting end, width are 30mm or so, which docks with the ending end of the second conductive foil 201, to
Facilitate connecting for the tertiary winding 3 and the second winding 2.
On the basis of the above embodiments, further, the first winding 1 is formed by 101 coiling of the first conductive foil；First around
Between the first conductive foil of adjacent two layers 101 of group 1, between the second conductive foil of adjacent two layers 201 of the second winding 2 and third around
It is both provided with a layer insulating paper between the adjacent two layers third conductive foil 301 of group 3；Layer insulating paper is oil resistivity water chestnut lattice glue DMD paper.
In the present embodiment, it sets layer insulating paper to oil resistivity water chestnut lattice glue DMD paper, it can through manufacturing experimently this layer of insulating paper in batches
Be not in duplex paper misalignment for oil immersed type capacitance-adjustable transformer, and in winding process, causing to insulate at misalignment lacks
It falls into；In addition, using oil resistivity water chestnut lattice glue DMD paper, the paper intensity is high, it is not easy to which stress causes damaged and makes layer short circuit, long
The insulation of phase firing floor will not damage, so that low voltage foil winding loop construction provided in this embodiment becomes suitable for oil immersed type capacity transfer
Depressor.Loop construction can be made in high temperature drying simultaneously, be integrally formed using heated become sticky of dispensing, to more resistant to electric power.
Further, the thickness of layer insulating paper is 0.15-0.20mm.Preferably, the thickness of layer insulating paper is 0.17mm.
Fig. 2 is the structural representation of the outer ejectment of the first starting end provided in an embodiment of the present invention and the outer ejectment of the second starting end
Figure；Fig. 3 is the structural schematic diagram of insulating board provided in an embodiment of the present invention；Fig. 4 is that the first starting end that Fig. 2 is provided draws outside
The structural schematic diagram that row, the outer ejectment of the second starting end are combined with Fig. 3 insulating boards provided；As in Figure 2-4, in above-mentioned implementation
On the basis of example, further, the starting end of the first conductive foil 101 is provided with ejectment 4 outside the first starting end；Second conductive foil
201 starting end is provided with ejectment 11 outside the second starting end；The outer ejectment 4 of first starting end passes through with ejectment outside the second starting end 11
Insulating protector is fixedly connected.Insulating protector includes insulating board 14 and pyrocondensation belt 16；It is arranged in ejectment 4 outside first starting end
There are two the first mounting holes 12；There are two the second mounting holes 13 for setting in the outer ejectment 11 of second starting end；It is set on insulating board 14
Third mounting hole 15 there are four setting；Two of which third mounting hole 15 is arranged in a one-to-one correspondence with two the first mounting holes 12；In addition
Two third mounting holes 15 are arranged in a one-to-one correspondence with two the second mounting holes 13；Pyrocondensation belt 16 is threaded through the first mounting hole 12,
Two mounting holes 13 fix ejectment 4 outside the first starting end and ejectment 11 outside the second starting end in third mounting hole 15.
In the present embodiment, pyrocondensation belt 16 is threaded through the first mounting hole 12, the second mounting hole 13 and third and consolidated by user
Determine in hole 15, to which ejectment 11 outside ejectment 4 outside the first starting end, the second starting end is fixedly connected with insulating board 14, from
And so that the outer ejectment 4 of the first starting end is relatively fixed with ejectment outside the second starting end 11, namely so that the first winding 1 and second
The relative position of winding 2 in the axial direction is fixed, and is avoided since the first winding 1 and the second winding 2 are interior due to being placed on
Portion, suffered support force and chucking power are weaker, and easily relative movement of lifting one's head leads to the problem of short circuit, while avoiding in foil around coiling
In, coil turnover transport in, coil by arrange lead in, coil operation in and coil by two coil of larger external force or electric power
Position lead relative movement of starting cause the problem of coil inside short circuit.
Further, the processing technology of the present embodiment includes the following steps：
The first mounting hole 12 is manufactured in ejectment 4 outside the first starting end；Outside the second starting end second is manufactured in ejectment 11
Mounting hole 13；Two third mounting holes 15 are manufactured on insulating board 14；
Pyrocondensation belt 16 is threaded through in the first mounting hole 12, the second mounting hole 13 and two third mounting holes 15, heating heat
Contracting band 16 is to fix insulating board 14 and ejectment 11 outside ejectment 4 outside the first starting end and the second starting end.
On the basis of the above embodiments, further, draw outside the upper end of ejectment 4 and the second starting end outside the first starting end
The upper end of the first winding 1 is stretched out in the upper end of row 11；The lower end of ejectment 4 and ejectment outside the second starting end 11 outside first starting end
The lower end of the second winding 2 is stretched out in lower end, is respectively used to that the starting end and the second conductive foil of the first conductive foil 101 is auxiliarily fixed
201 starting end；First mounting hole 12 is located at the lower end of ejectment 4 outside the first starting end；Second mounting hole 13 is located at second and starts
Hold the lower end of outer ejectment 11.
In the present embodiment, the first mounting hole 12 is arranged to the lower end of the ejectment 4 outside the first starting end, by the second mounting hole 13
The lower end of the ejectment 11 outside the second starting end is set, so that the first mounting hole 12 and the second mounting hole 13 are located at loop construction
The same end, that is, the first mounting hole 12 and the second mounting hole 13 are located at the lower end of loop construction.User is by loop construction
The end is as fixing end, using the upper end of loop construction as conductive terminals, to cause the reduction of lead current-carrying capacity.
Further, outside the first starting end outside ejectment 4 and the second starting end the end of ejectment 11 should use insulating paper and
Tightening belt is wrapped up.Preferably, the both ends of ejectment 4 are wrapped up with insulating paper outside the first starting end, outside the first starting end
The upper end of ejectment 4 is wrapped up exceeding the first conductive foil 30mm, and the wrapping of lower end should go deep into the first conductive foil 50mm, beyond the
One conductive foil 5-10mm.The wrapping of the upper end of ejectment 11 should exceed the second conductive foil 30mm outside second starting end, go deep into second and lead
Electric foil 50mm or more.
On the basis of the above embodiments, further, it is laid between the first conductive foil of multilayer 101 of the first winding 1
There are first end insulating paper 7, the upper end of first end insulating paper 7 to stretch out the upper end of the first winding 1；The multilayer second of second winding 2 is led
Second end insulating paper 8 is equipped between electric foil 201；The lower end of the second winding 2 is stretched out in the lower end of second end insulating paper 8；First
The distance between upper end to lower end of second end insulating paper 8 of insulating paper 7 is held to be equal to the upper end of the tertiary winding 3 to the tertiary winding 3
The distance between lower end.
In the present embodiment, the distance between upper end of first end insulating paper 7 to the lower end of second end insulating paper 8 is equal to the
The distance between the upper end of three winding 3 to 3 lower end of the tertiary winding, in winding process, by the upper end of the tertiary winding 3 and first end
The upper end of insulating paper 7 is concordant, and the lower end of the tertiary winding 3 is concordant with the lower end of second end insulating paper 8, so as to be easy alignment.
Further, section insulation paper 9 is set between the first conductive foil 101 and the second conductive foil 201, at this point, first
It holds insulating paper 7 to stretch out the length of the first conductive foil 101, the width of the first conductive foil 101, section insulation paper 9 and is located at the first conduction
The width and second end insulating paper 8 of width, the second conductive foil 201 between foil 101 and the second conductive foil 201, which stretch out second, leads
The sum of length of electric foil 201 is equal to the width of third conductive foil 301.Wherein, section insulation paper 9 is located at 101 He of the first conductive foil
Width between second conductive foil 201 be spaced between the first conductive foil 101 and the second conductive foil 201 at a distance from it is equal.
Fig. 5 is the structural schematic diagram of the outer ejectment of third starting end provided in an embodiment of the present invention, as shown in figure 5, above-mentioned
On the basis of embodiment, further, the starting end of third conductive foil 301 is provided with ejectment 5 outside third starting end；, third opens
The upper end of the tertiary winding 3 is stretched out in the upper end of ejectment 5 outside beginning, is used for extraction wire；The lower end of ejectment 5 is stretched out outside third starting end
The lower end of the tertiary winding 3, the starting end for the tertiary winding 3 to be auxiliarily fixed；The ending end of first conductive foil 101 is provided with first
Ejectment 17 outside ending end；The upper end of the tertiary winding 3 is stretched out in the upper end of the first outer ejectment 17 in ending end, and first ends up ejectment 17 outside end
Lower end be located at the inside of the tertiary winding 3.
In the present embodiment, the upper end of the outer ejectment of third starting end 5 is used for lead, lower end with the tertiary winding 3 is auxiliarily fixed, by
The tertiary winding 3 is stretched out in the top and bottom of ejectment 5 outside third starting end, to convenient for users to the progress of the tertiary winding 3
Lead and fixation.The upper end of the tertiary winding 3 is stretched out in the upper end of ejectment 17 outside first ending end, to convenient for users to the first knot
The outer ejectment 17 of tail end is into line lead.
Further, insulating paper, insulating paper will be set between ejectment 5 outside ejectment 17 outside the first ending end and third starting end
For will insulate between ejectment 5 outside ejectment 17 outside the first ending end and third starting end, so as to reinforce insulation herein, avoid
Ejectment 17 is contacted with ejectment outside third starting end 5 outside first ending end occurs short circuit phenomenon.
Preferably, a part for the insulating paper is located at outside the first ending end below ejectment 17, and another part is located at third
The upper surface of outer ejectment of starting end 5, that is, insulating paper be plugged in the first ending end outside ejectment 17 and third starting end outside ejectment 5 it
Between, to reinforce insulation herein.
Ejectment 6 outside the ending end welding third ending end of third conductive foil 301.
Further, the process of the present embodiment includes the following steps：
The ejectment 17 outside the first ending of the ending end of the first conductive foil 101 welding end, by the starting end of third conductive foil 301
The outer ejectment 5 of third starting end is welded, insulating paper will be set between ejectment 5 outside ejectment 17 outside the first ending end and third starting end,
So that the outer ejectment 17 in the first ending end and third starting end insulate between ejectment 5 outside.
On the basis of the above embodiments, further, the embodiment of the present invention also provides a kind of capacitance-adjustable transformer, and capacity transfer becomes
Depressor includes the low voltage foil winding loop construction of capacitance-adjustable transformer as described in the present invention.The principle of low voltage foil winding loop construction is same
On, details are not described herein.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. a kind of low voltage foil winding loop construction of capacitance-adjustable transformer, which is characterized in that including：First winding, the second winding and
The tertiary winding；
First winding is from top to bottom arranged concentrically successively with second winding；First winding and second winding
It is in series or in parallel；The tertiary winding is sleeved on outside first winding and second winding；The tertiary winding with it is described
Second windings in series；
Second winding is formed by the second conductive foil coiling, and the tertiary winding is formed by third conductive foil coiling；Described
The ending end of two conductive foils is connect with the starting end of the third conductive foil by way of electric resistance welding；
First winding is formed by the first conductive foil coiling；Between the first conductive foil of adjacent two layers of first winding, institute
State between the second conductive foil of adjacent two layers of the second winding and between the adjacent two layers third conductive foil of the tertiary winding
It is provided with a layer insulating paper；The layer insulating paper is oil resistivity water chestnut lattice glue DMD paper；
The starting end of first conductive foil is provided with the outer ejectment of the first starting end；The starting end of second conductive foil is provided with
The outer ejectment of second starting end；The outer ejectment of first starting end is fixed with the outer ejectment of second starting end by insulating protector
Connection；The top and bottom of the insulating protector are respectively positioned on the inside of first winding and second winding；
The insulating protector includes insulating board and pyrocondensation belt；Setting is solid there are two first in the outer ejectment of first starting end
Determine hole；There are two the second mounting holes for setting in the outer ejectment of second starting end；There are four thirds for setting on the insulating board
Mounting hole；Third mounting hole described in two of which is arranged in a one-to-one correspondence with two first mounting holes；Other two described
Three mounting holes are arranged in a one-to-one correspondence with two second mounting holes；The pyrocondensation belt is threaded through first mounting hole, described
Second mounting hole consolidates ejectment outside first starting end and ejectment outside second starting end in the third mounting hole
It is fixed.
2. the low voltage foil winding loop construction of capacitance-adjustable transformer according to claim 1, which is characterized in that the layer insulating paper
Thickness be 0.15-0.20mm.
3. the low voltage foil winding loop construction of capacitance-adjustable transformer according to claim 1, which is characterized in that described first starts
The upper end of first winding is stretched out in the upper end of the outer ejectment in end and the upper end of the outer ejectment of second starting end；
Second winding is stretched out in the lower end of the outer ejectment of first starting end and the lower end of the outer ejectment of second starting end
Lower end, be respectively used to that the starting end of the starting end and second conductive foil of first conductive foil is auxiliarily fixed；
First fixed hole position is in the lower end of ejectment outside first starting end；Second fixed hole position is opened in described second
The lower end of ejectment outside beginning.
4. the low voltage foil winding loop construction of capacitance-adjustable transformer according to claim 1, which is characterized in that the third is conductive
The starting end of foil is provided with the outer ejectment of third starting end, and the tertiary winding is stretched out in the upper end of the outer ejectment of the third starting end
Upper end is used for extraction wire；The lower end of the tertiary winding is stretched out in the lower end of the outer ejectment of the third starting end, solid for assisting
The starting end of the fixed tertiary winding；
The ending end of first conductive foil is provided with ejectment outside the first ending end, and the upper end of ejectment is stretched outside first ending end
Go out the upper end of the tertiary winding, the lower end of ejectment is located at the inside of the tertiary winding outside first ending end.
5. a kind of capacitance-adjustable transformer, which is characterized in that include the low pressure of capacitance-adjustable transformer according to any one of claims 1-4
Foil coiling coil structures.
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| CN201710089927.0A CN106653317B (en) | 2017-02-20 | 2017-02-20 | The low voltage foil winding loop construction and capacitance-adjustable transformer of capacitance-adjustable transformer |
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| CN201710089927.0A CN106653317B (en) | 2017-02-20 | 2017-02-20 | The low voltage foil winding loop construction and capacitance-adjustable transformer of capacitance-adjustable transformer |
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| CN107768117A (en) * | 2017-10-12 | 2018-03-06 | 安徽省神虹变压器股份有限公司 | A kind of method for improving transformer radiating efficiency |
| CN109616294A (en) * | 2019-01-11 | 2019-04-12 | 浙江宝威电气有限公司 | A kind of capacitance-adjustable transformer of three-phase linear arranged type Dy (Yy) connection |
| CN111009411A (en) * | 2019-12-31 | 2020-04-14 | 中铁电气工业有限公司 | Manufacturing method of compensating coil of balancing transformer |
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| CN206639683U (en) * | 2017-02-20 | 2017-11-14 | 北京博瑞莱智能科技集团有限公司 | The low voltage foil winding loop construction and capacitance-adjustable transformer of capacitance-adjustable transformer |
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| CN203760288U (en) * | 2014-04-10 | 2014-08-06 | 广东广特电气有限公司 | Low-voltage foil winding structure used for onload capacity regulating transformer |
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