CN106887325B - Capacitance-adjustable transformer low voltage foil winding coil processing technology - Google Patents
Capacitance-adjustable transformer low voltage foil winding coil processing technology Download PDFInfo
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- CN106887325B CN106887325B CN201710089929.XA CN201710089929A CN106887325B CN 106887325 B CN106887325 B CN 106887325B CN 201710089929 A CN201710089929 A CN 201710089929A CN 106887325 B CN106887325 B CN 106887325B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/122—Insulating between turns or between winding layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Of Coils (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The present invention relates to transformer technology fields, more particularly, to a kind of capacitance-adjustable transformer low voltage foil winding coil processing technology.In the present invention, when being in low capacity state due to capacity transfer transformation, first winding and the second winding are located in the tertiary winding, the number of turns of main empty path far from capacitance-adjustable transformer is more, the short-circuit impedance for the capacitance-adjustable transformer being mainly made of induction reactance increases, so that short-circuit impedance can be qualified under large capacity and lower capacity for capacitance-adjustable transformer.In order to avoid the problem for easily relatively moving and causing short circuit of since due to being placed inside the coil, suffered support force and chucking power are weaker for ejectment outside ejectment outside the first starting end and the second starting end, lifting one's head, the mode of being fixed to each other is provided.Using winding mould baffle, and the method lifted one's head outside winding using lead both ends, fixed winding are started.Meanwhile insulating protection and points for attention in other coilings are specified, the second winding and the tertiary winding use the welding manner of electric resistance welding in coil inside, improve layer insulation materials.
Description
Technical field
The present invention relates to transformer technology fields, and work is processed more particularly, to a kind of capacitance-adjustable transformer low voltage foil winding coil
Skill.
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.
As common transformer low pressure winding using foil around that can solve the above problems, capacitance-adjustable transformer may be designed in
For foil around form, but because capacitance-adjustable transformer coil is different with common transformer coil inside structure, lead-out wire quantity is different, therefore around
Technique processed also differs.The wound capacitance-adjustable transformer low-voltage coil of foil there is no related maturation, unified technique for coiling at present.
It is also known that foil around capacitance-adjustable transformer technique for coiling, such as Fig. 1, the Ith winding and the overlapping coiling of the IIth winding, weight
Lap wound system needs the placed layer between the first winding and the second winding to insulate, therefore it is bigger than normal to be easy to cause coil, high expensive.Also
After winding is using the IIIth winding in first coiling common segment, that is, Fig. 1, point upper and lower coiling connection in series-parallel winding the i.e. the Ith and the IIth simultaneously around
The method of group be easy to cause a kind of appearance due to reasons in structure it is found that short-circuit impedance difference is larger under the large and small capacity of this transformer
The lower impedance of amount is qualified, underproof phenomenon under another capacity.
In Fig. 1, the ending of the IIth winding and the IIIth winding start be respectively provided with lead draw it is external carry out it is as shown in Figure 1
IIth winding and the IIIth windings in series waste material, and carrying out welding in coil inside draws public row, if using electric resistance welding,
It, can not the wider foil of butt welding because resistance soldering turret throat depth is shallower.
When layer insulation uses cable paper or water chestnut lattice point gummed paper when coiling, because intensity is relatively low, the Ith winding and the IIth winding need
Coiling simultaneously, coiling slightly imbalance easily causes layer short circuit between foil.When using DMD prepreg cloths, because prepreg cloth is suitable for dry change,
It is not suitable for oily change, if becoming longtime running for oil, insulation damages will be caused, finally cause layer short circuit.
Invention content
The purpose of the present invention is to provide a kind of capacitance-adjustable transformer low voltage foil winding coil processing technologys, to solve the prior art
Present in capacitance-adjustable transformer size and capacity when short-circuit impedance difference it is larger, it is qualified to be easy to cause impedance under a kind of capacity, another
Under kind capacity the technical issues of underproof phenomenon.
A kind of capacitance-adjustable transformer low voltage foil winding coil processing technology provided by the invention, described includes that foil coiling processes work
Skill following steps：
1) ejectment outside the first starting end is welded on to the starting end of the first conductive foil；Ejectment outside second starting end is welded on
The starting end of second conductive foil；By ejectment outside ejectment outside the first starting end and the second starting end is fastened to each other and mutual insulating；
2) by the starting end of the starting end of the first conductive foil and the second conductive foil along foil winding equipment winding mould it is axial according to
It is fixed on the baffle of winding mould to minor tick, the first conductive foil and the second conductive foil coiling is preset into circle using foil winding equipment
Number, to form the first winding and the second winding；
3) starting end of third conductive foil is connected with the ending end at the ending end of the first conductive foil or the second conductive foil,
Using foil winding equipment the outer surface of the first winding and the second winding by third conductive foil coiling preset the number of turns, to formed third around
Group.
Further, in step 1), by ejectment outside ejectment outside the first starting end and the second starting end it is fastened to each other and
The mode of mutually insulated is：
Two the first mounting holes are manufactured in ejectment outside the first starting end；The manufacture two the in ejectment outside the second starting end
Two mounting holes；Four third mounting holes are manufactured on insulating board；By ejectment outside ejectment outside the first starting end and the second starting end
It is spaced apart；Two of which third mounting hole and two the first mounting holes are corresponded；By other two third mounting hole with
Two the second mounting holes are arranged in a one-to-one correspondence；
Pyrocondensation belt is threaded through in the first mounting hole, the second mounting hole and third mounting hole, heating pyrocondensation belt will be will insulate
Cardboard is fixed with the outer ejectment of the first starting end and the outer ejectment of the second starting end.
Further, the overall thickness of the foil coiled strip of the first conductive foil is equal with the overall thickness of foil coiled strip of the second conductive foil,
So that the tightness of the first winding and the second winding is consistent in winding process.
Further, one end of the outer ejectment of the first starting end and one end of the outer ejectment of the second starting end stretch out first around
Group, for extraction wire and fixation of starting；
The other end of the outer ejectment of first starting end and the other end of the outer ejectment of the second starting end stretch out the second winding, are used for
Assist fixation of starting.
Further, at the end of the first conductive foil and second conductive foil the first circle of coiling, two stackings are placed
The insulating paper of 0.5mm thickness is placed in the outer ejectment of the first starting end and the outer ejectment of the second starting end.
Further, in step 1) by the starting end of the starting end of the first conductive foil and the second conductive foil along foil winding equipment around
Compartment of terrain is fixed on the baffle of winding mould the axial direction of line mold successively, including：
Two baffles, the equal position of starting end of the starting end of the first conductive foil and the second conductive foil are processed at winding mould both ends
Between two baffles, one end of ejectment outside ejectment outside the first starting end and the second starting end is fixed with one of baffle and is connected
It connects, ejectment outside the first starting end is fixedly connected with the other end of ejectment outside the second starting end with another baffle.
Further, the tension of foil winding equipment is turned down, to prevent ejectment outside ejectment and the second starting end outside the first starting end
Deformation.
Further, the starting end of third conductive foil is connected with the ending end of the second conductive foil in step 3), including：
The jig that the starting end at the ending end of the second conductive foil and third conductive foil is moved to foil winding equipment, utilizes resistance
The method of weldering welds the two, and the weld of the two is pounded flat.
Further, the both ends of the tertiary winding are stretched out at the both ends of the outer ejectment of third starting end respectively, and one end is led for drawing
Line and fixation of starting, the other end is for assisting fixation of starting.
Further, the layer insulation of the first winding, the second winding and the tertiary winding is all made of oil resistivity water chestnut lattice glue
DMD paper.
Further, the length of the short axle of winding mould is less than preset length 2-5mm, and the length of long axis is more than preset length
5-10mm。
Foil coiling processing technology provided by the invention, it is pre- using foil winding equipment elder generation the first conductive foil of coiling and the second conductive foil
If the number of turns, form the first winding and the second winding, then by the ending end of the starting end of third conductive foil and the first conductive foil or
The ending end of second conductive foil is connected, using foil winding equipment in the outer surface of the first winding and the second winding by third conductive foil coiling
Default the number of turns, to form the tertiary winding.The foil coiling coil structures formed at this time are：First winding and the second winding are located at third
The inside of winding, the tertiary winding and the first winding or the second windings in series.When in use, user is by the first winding and 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
By the first winding and the second windings in series, at this point, the first winding, the second winding are connected with tertiary winding three, capacitance-adjustable transformer
In low capacity state.
Foil coiling processing technology provided by the invention, when being in low capacity state due to capacity transfer transformation, the first winding and
Second winding is located in the tertiary winding, main empty path of the tertiary winding between capacitance-adjustable transformer high-low pressure winding, the first winding and
Second winding far from the main empty path between capacitance-adjustable transformer high-low pressure winding, and far from capacitance-adjustable transformer main empty path the number of turns compared with
It 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, to reduce
Difference under large capacity and under low capacity between short-circuit impedance so that short circuit resistance of the capacitance-adjustable transformer under large capacity and low capacity
Anti- consistency increases, so that capacitance-adjustable transformer short-circuit impedance qualification nargin under large capacity and low capacity increases, it is specific former
Reason 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.
In addition, in order to avoid due to outside ejectment outside the first starting end and the second starting end ejectment due to being placed in coil
Portion, suffered support force and chucking power are weaker, lift one's head and easily relatively move and cause the problem of short circuit, provide the mode of being fixed to each other.
Using winding mould baffle, and the method lifted one's head outside winding using lead both ends, fixed winding are started.Also, it indicates
Insulating protection and points for attention, the second winding and the tertiary winding in other coilings use the welding of electric resistance welding in coil inside
Mode improves layer insulation materials.
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 circuit diagram of capacitance-adjustable transformer in the prior art；
Fig. 2 is the part knot of low voltage foil winding loop construction made of foil coiling processing technology provided in an embodiment of the present invention
Structure schematic diagram；
Fig. 3 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. 4 is the structural schematic diagram of insulating board provided in an embodiment of the present invention；
Fig. 5 is that the insulating paper that the outer ejectment of the first starting ends for providing of Fig. 3, the outer ejectment of the second starting end and Fig. 4 are provided is hardened
The structural schematic diagram of conjunction；
Fig. 6 is the structural schematic diagram of the outer ejectment of third starting end provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of winding mould provided in an embodiment of the present invention and baffle；
Fig. 8 is another structural schematic diagram of winding mould provided in an embodiment of the present invention and baffle；
Fig. 9 is the structural schematic diagram of third conductive foil starting end provided in an embodiment of the present invention；
Figure 10 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. 2 is the part knot of low voltage foil winding loop construction made of foil coiling processing technology provided in an embodiment of the present invention
Structure schematic diagram；As shown in Fig. 2, a kind of foil coiling processing technology provided in an embodiment of the present invention, described to add including foil coiling
Work technique following steps：
1) ejectment 4 outside the first starting end is welded on to the starting end of the first conductive foil 101；By ejectment 11 outside the second starting end
It is welded on the starting end of the second conductive foil 201；By the fixation of ejectment 11 outside ejectment 4 outside the first starting end and the second starting end and mutually
Mutually insulate；
2) 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 the baffle 19 of winding mould 18 successively, the first conductive foil 101 and second are led using foil winding equipment
The number of turns is preset in 201 coiling of electric foil, to form the first winding 1 and the second winding 2；
3) 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.
Foil coiling processing technology provided by the invention, it is conductive using foil winding equipment elder generation the first conductive foil of coiling 101 and second
Foil 201 presets the number of turns, forms the first winding 1 and the second winding 2, then by the starting end of third conductive foil 301 and the first conductive foil
101 ending end or the ending end series connection of the second conductive foil 201, using foil winding equipment in the outer of the first winding 1 and the second winding 2
301 coiling of third conductive foil is preset the number of turns by surface, to form the tertiary winding 3.The foil coiling coil structures formed at this time are：The
One winding 1 and the second winding 2 are located at the inside of the tertiary winding 3, and the tertiary winding 3 is connected with the first winding 1 or the second winding 2.
When in use, user is in parallel with the second winding 2 by the first winding 1, at this point, the tertiary winding 3 and the first winding 1, the second winding 2
Series connection, capacitance-adjustable transformer are in large capacity state.User connects the first winding 1 with the second winding 2, at this point, the first winding
1, the second winding 2 is connected with 3 three of the tertiary winding, and capacitance-adjustable transformer is in low capacity state.
Foil coiling processing technology provided by the invention, when being in low capacity state due to capacity transfer transformation, 1 He of the first winding
Second winding 2 is located in the tertiary winding 3, main empty path of the tertiary winding 3 between capacitance-adjustable transformer high-low pressure winding, the first winding
1 and second winding 2 far from the main empty path between capacitance-adjustable transformer high-low pressure winding, and far from capacitance-adjustable transformer main empty path the number of turns
It is more, greatly, to reduce the difference under large capacity and under low capacity between short-circuit impedance so that capacitance-adjustable transformer in large capacity and
Short-circuit impedance consistency under low capacity increases, so that capacitance-adjustable transformer short-circuit impedance under large capacity and low capacity is qualified
Nargin 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.
In addition, the outer movement of ejectment 11 of 4 and second starting end of the outer ejectment of the first starting end leads to short circuit in order to prevent, first will
The outer ejectment 11 of first starting end, 4 and second starting end of outer ejectment is fixed
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.
Further, before step 1), user should check whether 18 size of winding mould meets drawing requirement (coiling
18 coil short-axis direction of mold will be according to capacity small 2-5mm more appropriate than theoretical size, and long axis direction will suitably big 5-10mm
It is required that, it is therefore an objective to for iron core column can not be inserted in when preventing rebound of coil from deforming)；Whether foil specification meets drawing, and surface is answered hairless
Thorn；Whether lead specification and welded copper stranded conductor meet drawing requirement, and whether welding quality is qualified.
On the basis of the above embodiments, further, by ejectment 11 outside ejectment 4 outside the first starting end and the second starting end
Fastened to each other and mutual insulating mode is：
Two the first mounting holes 12 are manufactured in ejectment 4 outside the first starting end；It is manufactured in ejectment 11 outside the second starting end
Two the second mounting holes 13；Four third mounting holes 15 are manufactured on insulating board 14；By ejectment 4 and second outside the first starting end
Ejectment 11 is spaced apart outside starting end；Two of which third mounting hole 15 and two the first mounting holes 12 are corresponded；It will be another
Outer 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 in the first mounting hole 12, the second mounting hole 13 and third mounting hole 15, pyrocondensation belt is heated
16 to fix insulating board 14 and ejectment 11 outside ejectment 4 outside the first starting end and the second starting end.
In the present embodiment, ejectment 11 outside ejectment 4 outside first starting end and the second starting end is fixed by insulating board 14,
Namely so that the relative position of the first winding 1 and the second winding 2 in the axial direction is fixed, and is avoided due to the first winding 1
With the second winding 2 due to internally placed, support force and chucking power are weaker, and easily relative movement of lifting one's head leads to the problem of short circuit, together
When avoid in foil in coiling, in coil turnover transport, coil is by arranging in lead, in coil operation and coil is by larger
The position lead relative movement of starting of two coil of external force or electric power causes the problem of coil inside short circuit.
Specifically, as shown in figure 4, manufacturing the first mounting hole 12 in ejectment 4 outside the first starting end；Outside the second starting end
The second mounting hole 13 is manufactured in ejectment 11, is specifically included：
Ejectment 11 is strip outside first starting end, 4 and second starting end of outer ejectment；
The starting end of the first end of ejectment 4 outside first starting end and the first conductive foil 101 is welded, is drawn outside the first starting end
The second end of row 4 is located at the initiating terminal of the second conductive foil 201；The second end processing first of the ejectment 4 outside the first starting end is fixed
Hole 12；
The starting end of the first end of ejectment 11 outside second starting end and the second conductive foil 201 is welded, outside the second starting end
The second end of ejectment 11 is located at the initiating terminal of the first conductive foil 101；The first end processing second of the ejectment 11 outside the second starting end
Mounting hole 13.
In the present embodiment, the first mounting hole of second end 12 of the ejectment 4 outside the first starting end, the ejectment outside the second starting end
11 first end processes the second mounting hole 13, so that the first mounting hole 12 and the second mounting hole 13 are located at the same of loop construction
One end.That is, using the method for only welding half outer ejectment section when welding, welding is made not block the first mounting hole 12 and second
Mounting hole 13.User is using the end of loop construction as fixing end, using the other end of loop construction as conductive terminals, from
Reduction without causing lead current-carrying capacity.
Further, it is desirable that the lap width of the first starting end 4 and first conductive foil 101 of outer ejectment is not less than 1/2 first
The width of the outer ejectment of starting end 4 and without departing from ejectment 4 outside the first starting end, cannot cover mounting hole 22, pair with the first starting end
Outer ejectment 4 has with the second conductive foil 201 to be also required that, notices that the both ends of outer ejectment should meet coil drawing beyond foil size and want
It asks, measures lead and foil verticality using angle square when welding.
Fig. 3 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. 4 is the structural schematic diagram of starting end insulation board provided in an embodiment of the present invention；Fig. 5 is outside the first starting end that Fig. 3 is provided
The structural schematic diagram that ejectment, the outer ejectment of the second starting end are combined with Fig. 4 insulating boards provided；As shown in Figure 3-Figure 5, further
Ground, the end of ejectment 11 should use the insulating paper and tightening belt of 0.5mm thickness outside ejectment 4 and the second starting end outside the first starting end
It is wrapped up.Preferably, the both ends of ejectment 4 are wrapped up with insulating paper outside the first starting end, ejectment 4 outside the first starting end
Upper end is wrapped up exceeding the first conductive foil 30mm, and the wrapping of lower end should go deep into the first conductive foil 50mm, conductive beyond first
Foil 15-10mm.The wrapping of the upper end of ejectment 11 should exceed the second conductive foil 30mm outside second starting end, go deep into the second conductive foil
50mm or more.
Further, during the first 101 coiling of conductive foil, is equipped between the first conductive foil of multilayer 101
The upper end of the first winding 1 is stretched out in one end insulating paper 7, the upper end of first end insulating paper 7；During second conductive foil, 201 coiling,
It is equipped with second end insulating paper 8 between the second conductive foil of multilayer 201 of second winding 2；The lower end of second end insulating paper 8 is stretched out
The lower end of second winding 2；The distance between the upper end of first end insulating paper 7 to lower end of second end insulating paper 8 be equal to third around
The distance between upper end to 3 lower end of the tertiary winding of group 3.
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. 9 is the structural schematic diagram of third conductive foil starting end provided in an embodiment of the present invention；As shown in figure 9, further
The starting end on ground, third conductive foil 301 is machined 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 overall thickness of the foil coiled strip of the first conductive foil 101 and the second conduction
The overall thickness of the foil coiled strip of foil 201 is equal, so that the first winding 1 is consistent with the tightness of the second winding 2 in winding process.
Wherein, the overall thickness of the foil coiled strip of the first conductive foil 101 refers to the interior of the foil coiled strip cylinder where the first conductive foil 101
The distance between wall and outer wall.The overall thickness of the foil coiled strip of second conductive foil 201 refers to the foil coiled strip where the second conductive foil 201
The distance between inner wall and outer wall of cylinder.
In the present embodiment, by the total of the overall thickness of the foil coiled strip of the first conductive foil 101 and the foil coiled strip of the second conductive foil 201
Consistency of thickness so that the foil coiled strip of the foil coiled strip of the first conductive foil 101 and the second conductive foil 201 in winding mould coiling, around
Line mold 18 rotates one week, and the first conductive foil 101 is consistent with the length that the second conductive foil 201 is wound on winding mould 18, from
And more loose, another tighter phenomenon appearance during 2 coiling of the first winding 1 and the second winding is avoided, namely so that
First winding 1 and the second winding 2 are elastic consistent during coiling, are completed so as to quick coiling, to ensure coiling
The first winding 1 is consistent with the tightness of the second winding 2 in journey, and layer insulation deflection is minimum.
On the basis of the above embodiments, further, draw outside one end of ejectment 4 and the second starting end outside the first starting end
The first winding 1 is stretched out in one end of row 11, for extraction wire and fixation of starting；The other end of the outer ejectment of first starting end 4 and
The other end of ejectment 11 stretches out the second winding 2 outside second starting end, for assisting fixation of starting.
In the present embodiment, winding is stretched out at the both ends of ejectment 11 respectively outside the first starting end 4 and second starting end of outer ejectment,
That is, one end of ejectment 11 is located at outside the first winding 1 outside the first starting end 4 and second starting end of outer ejectment, draw outside the first starting end
The other end of row 4 and the outer ejectment of the second starting end 11 is located at outside the second winding 2.Ejectment 4 and second outside first starting end is started
The outer ejectment 11 in end stretches out one end of the first winding 1 for lead and fixation of starting, and stretches out one end of the second winding 2 for assisting
Head is fixed, and lead current-carrying capacity is influenced when to can avoid being auxiliarily fixed, causes the reduction of lead current-carrying capacity.
On the basis of the above embodiments, further, in 201 coiling first of the first conductive foil 101 and the second conductive foil
At the end of circle, the insulating paper for the 0.5mm thickness that two stackings are placed is placed on outside the first starting end outside ejectment 4 and the second starting end
In ejectment 11.
In the present embodiment, the insulating paper that two stackings are placed is placed on ejectment 4 and the second starting end outside the first starting end
In outer ejectment 11 so that between the first starting end 4 and first conductive foil 101 of outer ejectment, the outer ejectment 11 and second of the second starting end
The insulating paper is all had between conductive foil 201, which can carry out protecting lead.Two 0.5mm thickness of selection
Insulating paper, without the insulating paper after one 1mm of selection, insulating paper avoidable in this way is really up to the mark, and corner angle are easily destroyed layer insulation.
Fig. 7 is the structural schematic diagram of winding mould provided in an embodiment of the present invention and baffle；Fig. 8 carries for the embodiment of the present invention
The winding mould of confession and another structural schematic diagram of baffle；As shown in Figure 7 and Figure 8, on the basis of the above embodiments, further
Ground, 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 in step 1)
Axial direction compartment of terrain is fixed on the baffle of winding mould 18 successively, including：
Two baffles 19, the starting end of the first conductive foil 101 and the second conductive foil 201 are processed at the both ends of winding mould 18
Starting end be respectively positioned between two baffles 19, by one end of ejectment 11 outside ejectment 4 outside the first starting end and the second starting end with
One of baffle 19 is fixedly connected, by ejectment 4 outside the first starting end and the other end of ejectment 11 outside the second starting end with it is another
A baffle 19 is fixedly connected.
In the present embodiment, ejectment 4 and second outside the first starting end is started in such a way that baffle 19 is set on mold
The outer ejectment 11 in end is fixed with mold, and the method is simple, can fix more than two multiple outer ejectments simultaneously, convenient for users to
Operation.And an outer ejectment can only be fixed using the fixing means slotted on winding mould 18 in the prior art, it has not been convenient to make
User operates.Winding is stretched out at the both ends of the outer ejectment of first starting end 4 and the both ends of the outer ejectment of the second starting end 11, then by first
The end of ejectment 11 is fixed on baffle 18 outside starting end 4 and second starting end of outer ejectment, to opening the first conductive foil 101
The starting end of beginning and the second conductive foil 201 is fixed on mold, that is, using winding mould baffle, and use lead two
The method lifted one's head outside winding, fixed winding is held to start, easy to operate, fixing-stable.
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 of second end starting end are depressed, and bolt is threaded through to the mounting hole 22 on top board 20 and lower platen 21
It is interior, ejectment 11 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
One end and baffle 19 fixation.The other end and baffle 19 of ejectment 11 outside first starting end, 4 and second starting end of outer ejectment
It fixes in the same way.
On the basis of the above embodiments, further, the tension of foil winding equipment is turned down, to prevent from drawing outside the first starting end
Row 4 and the outer ejectment 11 of the second starting end deform.
In the present embodiment, the tension of foil winding equipment can according to the thickness difference of the first conductive foil 101 and the second conductive foil 201 into
The corresponding setting of row, the tension for turning foil winding equipment down be in order to avoid outside ejectment 4 outside the first starting end and the second starting end ejectment 11 because
Stress is excessive to be deformed.
Specifically, in the first conductive foil of coiling 101 and the second conductive foil 201, the first conductive foil of coiling 101 and second is led
Foil winding equipment tension is adjusted when the starting end of electric foil 201 to smaller, increasing tension again when coiling one encloses above prevents the first starting end
Outer ejectment 4 and the outer ejectment 11 stretch bending deformation of the second starting end, cause the layer insulation of coil inside and section insulation to destroy.First
Such as common process placement layer insulation when circle coiling closes to an end, layer, which insulate, uses 0.17mm oil resistivity water chestnut lattice glue DMD paper,
Foil is adjusted to regulation tension at this time, when the first circle closes to an end, outside the first conductive foil 101 and the first starting end between ejectment 4,
2 0.5mm millboards of pad between second conductive foil 201 and the outer ejectment 11 of the second starting end, which should be isometric with mold, the paper
Plate can prevent layer insulating paper to be destroyed at ejectment 11 outside ejectment 4 and the second starting end outside the first starting end.1mm paper is not had to herein
Plate is because 1mm cardboards are harder, and corner angle are easily destroyed a layer insulating paper.
Figure 10 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, as shown in Figure 10, on the basis of the above embodiments, further, by third conductive foil in step 3)
301 starting end is connected with the ending end of the second conductive foil 201, including：
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.
In the present embodiment, pass through resistance using by the starting end of the ending end of the second conductive foil 201 and third conductive foil 301
The mode of weldering 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 adopted
With electric resistance welding reached the second conductive foil of coil interior welds 201 ending end and third conductive foil 301 ending end, without
Row series connection need to be discharged by outside extraction convenient for users to process operation.And in the prior art, the tail portion of the second winding 2 and
The stem of three winding 3 is welded in coil outer, therefore most producer has still continued to use this custom, or in order to make second around
Group 2 is welded in coil inside and the tertiary winding 3, using argon arc welding, copper foil and aluminium foil need using the fire that oxygen-acetylene weld weld come
It is welded.But argon arc welding need to grasp certain technical ability, and oxygen-acetylene is welded with fire explosion danger, and many producers all use at present
Cold welding or electric resistance welding.When being welded using resistance welding, because the throat depth of soldering turret is shorter, wider copper foil or aluminium can not be docked
Foil.Therefore row is drawn in the ending welding of the second winding 2 draw row's docking with the tertiary winding 3 with soldering turret.This operation is more complicated.
Further, the specific steps of the step include：
The starting end at the ending end of the second conductive foil 201 and third conductive foil 301 is moved to the jig after coil winding machine,
And be aligned two foils, it is welded, is moved pad on winding former to after welding, by coiling with common short larynx carbon composition resistor
The upper plank of top pad or millboard, pad are pounded with hammer forward or backward flat.
Fig. 6 is the structural schematic diagram of the outer ejectment of third starting end provided in an embodiment of the present invention；As shown in fig. 6, further
Ground, the weld at the ending end of the second conductive foil 201 and the starting end of third conductive foil 301 is pounded it is flat after further include following step
Suddenly：
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, setting ending end between ejectment 5 outside ejectment 17 outside the first ending end and third starting end is exhausted
Edge paper, so that the outer ejectment 17 in the first ending end and third starting end insulate between ejectment 5 outside.
In the present embodiment, setting ending end is insulated between ejectment 5 outside ejectment 17 and third starting end outside the first ending end
Paper will insulate outside ejectment 17 outside the first ending end and third starting end between ejectment 5.The setting of ending end insulating paper can be reinforced
Insulation herein avoids ejectment 17 outside the first ending end from contacting generation short circuit with ejectment outside third starting end 5.
Ejectment 6 outside the ending end welding third ending end of third conductive foil 301.
Further, insulating paper will be set between ejectment 5 outside ejectment 17 outside the first ending end and third starting end, so that the
The outer ejectment 17 in one ending end and third starting end insulate between ejectment 5 outside, specifically include：
A part for insulating paper is placed on outside the first ending below ejectment, another part is placed on outside third starting end
The upper surface of ejectment 5, that is, will ending end insulating paper be plugged in outside the first ending end outside ejectment 17 and third starting end ejectment 5 it
Between, to reinforce insulation between the two.
As shown in Figure 2 and Figure 9, on the basis of the above embodiments, further, the both ends point of the outer ejectment of third starting end
Not Shen Chu the tertiary winding both ends, one end is for extraction wire and starts fixation, and the other end is for assisting fixation of starting.
In the present embodiment, one end of ejectment 5 is for lead and fixation of starting outside third starting end, and the other end is for assisting
Head is fixed, in this way can convenient for users to fixed operation, meanwhile, when fixed third starting end outer ejectment 5, does not interfere with third and starts
Hold the water conservancy diversion amount of outer ejectment 5.
On the basis of the above embodiments, further, the layer insulation of the first winding, the second winding and the tertiary winding
It is all made of oil resistivity water chestnut lattice glue DMD paper.
That is, while the first 101 coiling of conductive foil, the coiling oil resistivity between the multilayer conductive foil of the first winding 1
Water chestnut lattice glue DMD paper；While the second 201 coiling of conductive foil, the coiling oil resistivity between the multilayer conductive foil of the second winding 2
Water chestnut lattice glue DMD paper；While third 301 coiling of conductive foil, the coiling oil resistivity between the multilayer conductive foil of the tertiary winding 3
Water chestnut lattice glue DMD paper.
In the present embodiment, the layer insulation of the first winding 1, the second winding 2 and the tertiary winding 3 is all made of oil resistivity water chestnut lattice
Dispensing DMD paper, oil resistivity water chestnut lattice glue DMD paper can will insulate between the first conductive foil of multilayer 101, by the second conductive foil of multilayer
It insulate between 201.Also i.e. using oil resistivity water chestnut lattice glue DMD paper as layer insulating paper, can be used for through manufacturing experimently this layer of insulating paper in batches
Oil immersed type capacitance-adjustable transformer, and be not in duplex paper misalignment in winding process, cause insulation defect at misalignment；Separately
Outside, 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, longtime running
Layer insulation will not damage, so that low voltage foil winding loop construction provided in this embodiment is suitable for oil immersed type capacitance-adjustable transformer.
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.
On the basis of the above embodiments, further, the length of the short axle of winding mould 18 is less than preset length 2-
The length of 5mm, long axis are more than preset length 5-10mm.
In the present embodiment, since coil winding terminates to will produce resilience phenomenon after taking out, so that the ruler of coil
It is very little that there is difference with pre-set dimension, and then cause coil that can not be inserted in iron core column.Therefore, the present embodiment is by winding mould 18
The length of short axle is less than preset length 2-5mm, and the length of long axis is more than preset length 5-10mm, so that winding deformation is sprung back
Size afterwards is consistent with pre-set dimension.
On the basis of the above embodiments, further, the thickness of the thickness of the first conductive foil 101 and the second conductive foil 201
It spends equal.
It is in the present embodiment, the thickness of the first conductive foil 101 is equal with the thickness of the second conductive foil 201, to can avoid
Tearing layer insulating paper in winding process.
Further, it is preferable that the thickness of the first conductive foil 101, the second conductive foil 201 thickness with third conductive foil
301 thickness is 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
It is wide with 201 uniform thickness of the second conductive foil.
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 (10)
1. a kind of capacitance-adjustable transformer low voltage foil winding coil processing technology, which is characterized in that include the following steps：
1) ejectment outside the first starting end is welded on to the starting end of the first conductive foil；Ejectment outside second starting end is welded on second
The starting end of conductive foil；By ejectment outside ejectment outside the first starting end and the second starting end is fastened to each other and mutual insulating；
2) by the starting end of the starting end of the first conductive foil and the second conductive foil along the winding mould of foil winding equipment axial direction successively between
It is fixed on the baffle of winding mould every ground, the first conductive foil and the second conductive foil coiling is preset into the number of turns using foil winding equipment, from
And form the first winding and the second winding；
3) starting end of third conductive foil is connected with the ending end at the ending end of the first conductive foil or the second conductive foil, is utilized
Third conductive foil coiling is preset the number of turns by foil winding equipment in the outer surface of the first winding and the second winding, to form the tertiary winding；
In step 1), by ejectment outside ejectment outside the first starting end and the second starting end is fastened to each other and the mode of mutual insulating
For：
Two the first mounting holes are manufactured in ejectment outside the first starting end；Two second are manufactured in ejectment outside the second starting end to consolidate
Determine hole；Four third mounting holes are manufactured on insulating board；By ejectment interval outside ejectment outside the first starting end and the second starting end
It places；Two of which third mounting hole and two the first mounting holes are corresponded；By other two third mounting hole and two
Second mounting hole is arranged in a one-to-one correspondence；
Pyrocondensation belt is threaded through in the first mounting hole, the second mounting hole and third mounting hole, heating pyrocondensation belt is with by insulating board
It is fixed with ejectment outside ejectment outside the first starting end and the second starting end.
2. capacitance-adjustable transformer low voltage foil winding coil processing technology according to claim 1, which is characterized in that the first conductive foil
Foil coiled strip overall thickness it is equal with the overall thickness of foil coiled strip of the second conductive foil so that the first winding and second in winding process
The tightness of winding is consistent.
3. capacitance-adjustable transformer low voltage foil winding coil processing technology according to claim 1, which is characterized in that the first starting end
The first winding is stretched out in one end of outer ejectment and one end of the outer ejectment of the second starting end, for extraction wire and fixation of starting；
The other end of the outer ejectment of first starting end and the other end of the outer ejectment of the second starting end stretch out the second winding, for assisting
It starts fixation.
4. capacitance-adjustable transformer low voltage foil winding coil processing technology according to claim 1, which is characterized in that in the first conduction
At the end of foil and second the first circle of conductive foil coiling, the insulating paper for the 0.5mm thickness that two stackings are placed is placed on the first beginning
In the outer ejectment in end and the outer ejectment of the second starting end.
5. capacitance-adjustable transformer low voltage foil winding coil processing technology according to claim 3, which is characterized in that will in step 1)
The starting end of the starting end of first conductive foil and the second conductive foil along the axial direction of the winding mould of foil winding equipment, fix successively by compartment of terrain
On the baffle of winding mould, including：
Two baffles are processed at the both ends of winding mould, the starting end of the first conductive foil and the starting end of the second conductive foil are respectively positioned on
Between two baffles, one end of ejectment outside ejectment outside the first starting end and the second starting end is fixed with one of baffle and is connected
It connects, ejectment outside the first starting end is fixedly connected with the other end of ejectment outside the second starting end with another baffle.
6. capacitance-adjustable transformer low voltage foil winding coil processing technology according to claim 1, which is characterized in that by foil winding equipment
Tension is turned down, and to prevent outside the first starting end, ejectment deforms outside ejectment and the second starting end.
7. capacitance-adjustable transformer low voltage foil winding coil processing technology according to claim 1, which is characterized in that will in step 3)
The starting end of third conductive foil is connected with the ending end of the second conductive foil, including：
The jig that the starting end at the ending end of the second conductive foil and third conductive foil is moved to foil winding equipment, utilizes electric resistance welding
Method welds the two, and the weld of the two is pounded flat.
8. capacitance-adjustable transformer low voltage foil winding coil processing technology according to claim 7, which is characterized in that third starting end
The both ends of the tertiary winding are stretched out at the both ends of outer ejectment respectively, and one end is for extraction wire and fixation of starting, and the other end is for assisting
It starts fixation.
9. capacitance-adjustable transformer low voltage foil winding coil processing technology according to claim 1, which is characterized in that the first winding,
The layer insulation of second winding and the tertiary winding is all made of oil resistivity water chestnut lattice glue DMD paper.
10. capacitance-adjustable transformer low voltage foil winding coil processing technology according to claim 1, which is characterized in that winding mould
The length of short axle be less than preset length 2-5mm, the length of long axis is more than preset length 5-10mm.
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| CN109273195B (en) * | 2018-10-26 | 2020-11-10 | 中车株洲电机有限公司 | Electromagnet magnetic pole double-section foil winding coil and winding method thereof |
| CN112260599B (en) * | 2020-10-10 | 2022-07-15 | 国网山东省电力公司烟台供电公司 | Capacity and pressure regulating predictive control method |
| CN115389833B (en) | 2022-07-25 | 2024-02-20 | 云南电网有限责任公司楚雄供电局 | Automatic capacity checking method for distribution transformer with voltage class of 315kV and below |
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| CN205354833U (en) * | 2015-12-03 | 2016-06-29 | 浙江宝威电气有限公司 | Transfer and hold transformer winding |
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| JP2001015368A (en) * | 1999-07-02 | 2001-01-19 | Tokin Corp | Common mode choke coil and method and device for manufacturing the same |
| CN101354947A (en) * | 2007-07-27 | 2009-01-28 | 台达电子工业股份有限公司 | Magnetic element and manufacturing method thereof |
| CN103326473A (en) * | 2012-03-23 | 2013-09-25 | Lg伊诺特有限公司 | Wireless power receiver and method of manufacturing the same |
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