CN106783062A - A kind of disconnected yoke formula amorphous alloy stereo roll iron core and its manufacture method - Google Patents
A kind of disconnected yoke formula amorphous alloy stereo roll iron core and its manufacture method Download PDFInfo
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- CN106783062A CN106783062A CN201611122962.XA CN201611122962A CN106783062A CN 106783062 A CN106783062 A CN 106783062A CN 201611122962 A CN201611122962 A CN 201611122962A CN 106783062 A CN106783062 A CN 106783062A
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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
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
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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
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
- H01F41/022—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) by winding the strips or ribbons around a coil
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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
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
- H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons
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Abstract
The invention discloses a kind of disconnected yoke formula amorphous alloy stereo roll iron core and its manufacture method, the rewinding material is included：Three disconnected yoke formula type amorphous alloy wound cores, each disconnected yoke formula type amorphous alloy wound core is surrounded by some groups of amorphous alloy core laminations, if every group of amorphous alloy core lamination includes dried layer amorphous alloy strips.Wherein, each disconnected yoke formula type amorphous alloy wound core includes：Two core limbs being oppositely arranged and two iron yokes being oppositely arranged, an iron yoke are provided with joining seam portion, rewinding material can be opened or close through the joining seam portion.The core limb of three disconnected yoke formula type amorphous alloy wound cores is each perpendicular to horizontal plane placement, and the window that three disconnected yoke formula type amorphous alloy wound cores are surrounded is equilateral triangle, described core limb is semicircle or class semicircle cylinder, and the core limb that each two is close to constitutes circular cylinder or approximate circle cylinder.Rewinding material of the present invention ensure that three-phase magnetic circuit is full symmetric isometric, greatly reduce magnetic resistance, and reduce special spooler installation investment.
Description
Technical field
The present invention relates to the manufacture method of transformer rewinding material, and in particular to a kind of disconnected yoke formula amorphous alloy stereo roll iron core
And its manufacture method.
Background technology
The Main Trends of The Development of transformer technology is to improve reliability and energy-conservation using new material and new construction, reduces and damages
This trend has been complied with consumption, succeeding in developing for amorphous alloy stereo roll iron core transformer.Amorphous alloy is also called glassy metal,
It is a kind of without crystal structure alloy, is the soft magnetic materials of new generation grown up over nearly 30 years.Amorphous alloy uses fast rapid hardening
Gu technology, directly solidifies to form thickness about with planar flow high-speed continuous casting technique, with 1,000,000 DEG C per second of cooldown rate from molten steel
The strip of 0.025mm.Amorphous alloy material has excellent electromagnetic property, and its outstanding feature is high magnetic permeability, low iron loss, is made
It is the transformer ratio silicon steel no-load transformer energy-conservation 60%~80% of core material manufacture.
However, the normal width dimensions of band only has four kinds, i.e. 120mm, 142mm, 170mm, 213mm, nothing at present
Method meets different capabilities Optimum Design of Transformers requirement.When iron core for different capabilities needs different cross-sectional, often can only
It is main to be realized by changing the thickness of the rectangular shape of core section, i.e., using the mode of two rows or three rows superposition unshakable in one's determination
To realize.Therefore, shape of cross section unshakable in one's determination can only be a kind of rectangle, it is impossible to rounded or polygon.Due to core limb and coil
Cross section is all rectangle, and the ability for causing its anti-sudden short circuit declines, it is necessary to take structural strengthening and press-loading process etc. to make up
Measure, and the increase of noise is caused due to using plane wound core structure, seam more.
At present, conventional unshakable in one's determination manufacturing process is by the amorphous band cutting of standard bandwidth and by setting using automatic gas cutting machine
Meter parameter automatic laminating, is annealed after the band that heap is folded is shaped into iron core followed by inner and outer template according to technological requirement
Treatment, carries out adhesive coated treatment to both sides end face unshakable in one's determination after iron core cooling.
The content of the invention
It is an object of the invention to provide a kind of disconnected yoke formula amorphous alloy stereo roll iron core and its manufacture method, the iron core overcomes
The difficult shortcoming of continuous yoke three dimensional wound core coiling, it is ensured that three-phase magnetic circuit is full symmetric isometric, greatly reduce magnetic resistance, and
And the coiling of coil can be completed using existing coil winding machine, reduce the investment of special spooler installation, and can effective control coil
Each size, it is ensured that the electric property of transformer, shaping need not be press-fited after the completion of coil winding, reduce manufacturing process mistake
Journey, improves insulating properties, improve production efficiency.
In order to achieve the above object, the invention provides a kind of disconnected yoke formula amorphous alloy stereo roll iron core, the rewinding material bag
Contain：Three disconnected yoke formula type amorphous alloy wound cores；Each disconnected yoke formula type amorphous alloy wound core is by some groups of amorphous alloy core laminations
Surround, if every group of amorphous alloy core lamination includes dried layer amorphous alloy strips.
Wherein, the disconnected yoke formula type amorphous alloy wound core of each described includes：Two core limbs being oppositely arranged and relative set
Two iron yokes put；Wherein, an iron yoke is provided with joining seam portion, and rewinding material can be opened or close through the joining seam portion；
Wherein, the core limb of described three disconnected yoke formula type amorphous alloy wound cores is each perpendicular to horizontal plane placement, and three break
The window that yoke formula type amorphous alloy wound core is surrounded is equilateral triangle, and described core limb is semicircle or class semicircle cylinder,
The core limb that each two is close to constitutes circular cylinder or approximate circle cylinder.
The space spacing g in described adjacent joining seam portion is less than or equal to 1mm（Air gap can influence magnetic circuit, theoretically smaller
Better）.
The lap of splice L in described joining seam portion is 8mm ~ 16mm.
Present invention also offers a kind of manufacture method of above-mentioned disconnected yoke formula amorphous alloy stereo roll iron core, the method is specific
Comprising：
The first step：Select the band of suitable normal width, according to technological requirement slitting go out trapezoidal shape band and carry out it is horizontal cut, obtain
To multigroup amorphous alloy core lamination；
Second step：By starting set, inwardly bag one is enclosed, and around multigroup amorphous alloy core lamination is covered on starting set, fixation is outermost
Amorphous alloy core lamination, obtains rewinding material and clamps it, by outer layer silicon steel sheet bag in rewinding material outer layer, and by rewinding material one
Organize and pull open outward, supportted along rewinding material is both horizontally and vertically strutted with hydraulic pressure, make the outermost band joining seam portion of rewinding material
Lap of splice L be 8mm ~ 16mm, the space spacing g in adjacent joining seam portion is less than or equal to 1mm；
3rd step：The core limb of rewinding material is positioned in rewinding material shaping glue spreading apparatus parallel to horizontal plane, and according to annealing
Technique is annealed to rewinding material under nitrogen protection；
4th step：After to be annealed, glue spreading apparatus are molded to rewinding material coated with adhesive using rewinding material；
5th step：To be bonded dose of solidification, three core limbs of rewinding material and horizontal plane are placed, what three rewinding materials were surrounded
Window is equilateral triangle, three rewinding materials is fixed and obtains disconnected yoke formula amorphous alloy stereo roll iron core.
It is preferred that in the 3rd step using described rewinding material be molded glue spreading apparatus can make described rewinding material after annealing its
The angle of lower surface and horizontal plane is into 30 °.
It is preferred that the rewinding material shaping glue spreading apparatus described in the 3rd step are included：Base, be arranged on base and perpendicular to
The baffle plate of base, is arranged on base base plate angled with base and adjacent with the end of baffle plate, and, parallel to base plate simultaneously
It is movably arranged on the backing plate on base plate；
Wherein, described annealing process is specifically included：
Step 3.1：The baffle plate of rewinding material shaping glue spreading apparatus is enclosed the shapes and sizes put in rewinding material window is agreed with, iron will be rolled up
The window of the heart is nested with makes rewinding material be positioned on described rewinding material shaping glue spreading apparatus outside baffle plate, by rewinding material and rewinding material
Shaping glue spreading apparatus are placed in annealing furnace together；
Step 3.2：Furnace temperature is set to 340 ~ 380 DEG C, into a stage for intensification；
Step 3.3：Rewinding material reaches target temperature and just carries out converter temperature, and rewinding material enters a holding stage；
Step 3.4：After insulation terminates, rewinding material enters a cooling process.
Described annealing process is also included：In step 3.2, rotation is applied to rewinding material when temperature unshakable in one's determination reaches 200 DEG C
Turn magnetic field.
It is preferred that the binding agent described in the 4th step is epoxy resin, the thickness of described coated with adhesive is less than or equal to
1mm。
It is preferred that the method for the coated with adhesive described in the 4th step is included：
Step 4.1：After annealing shaping terminates, treat that rewinding material is cooled to room temperature, prop up rewinding material, taking for rewinding material is close to by removing
Its excess-three block backing plate outside the backing plate of head is extracted out；
Step 4.2：Be coated with releasing agent on the three pieces of backing plates extracted out in the step 4.1, binding agent is coated uniformly on scribble it is de-
On three pieces of backing plates of mould agent, the three pieces of backing plates that will scribble binding agent are put back on base plate, backing plate is seamlessly fitted with base plate；
Step 4.3：The height of rewinding material is reduced to starting point, the lower surface of rewinding material is fitted with backing plate, binding agent is attached to
On the lower surface of rewinding material, and by non-two turning coated with adhesive for taking head end of the lower surface of rewinding material, the rewinding material
Lower surface coating finish；
Step 4.4：The upper surface of rewinding material is cleaned, it is viscous in the iron yoke coating of the core limb and non-joining seam portion of the upper surface of rewinding material
Knot agent, after to be bonded dose of solidification, the gluing operation of the rewinding material is completed.
The disconnected yoke formula amorphous alloy stereo roll iron core that the present invention is provided, with advantages below：
（1）Amorphous alloy transformer meets the unshakable in one's determination and separately machined requirement of coil, lifting using yoke rewinding material structure is resolved
The quality level of unshakable in one's determination and coil, shortens the production cycle of transformer；
（2）Three-phase magnetic circuit unshakable in one's determination is full symmetric isometric, it can be ensured that the balance of three phase supply, greatly reduces magnetic resistance, excitation
Electric current is significantly reduced, and seam unshakable in one's determination is reduced, product noise improvement；
（3）Amorphous alloy transformer iron core cross section approximate circle shape, the coil on such stem is finally caused non-also close to annular shape
Peritectic alloy transformer is improved well in terms of anti-short circuit capability, reduces the temperature rise of hot spot of product, lifting transformer fortune
Capable security reliability.
Brief description of the drawings
Fig. 1 is the top view of disconnected yoke formula amorphous alloy stereo roll iron core of the invention.
Fig. 2 is the structural representation of single rewinding material of the invention.
Fig. 3 is the structural representation that rewinding material of the invention is molded glue spreading apparatus.
Specific embodiment
Technical scheme is described further below in conjunction with drawings and Examples.
As shown in figure 1, being the top view of a kind of disconnected yoke formula amorphous alloy stereo roll iron core for providing of the invention, the rewinding material
Comprising：Three disconnected yoke formula type amorphous alloy wound cores, each disconnected yoke formula type amorphous alloy wound core is folded by some groups of amorphous alloy cores
Piece is surrounded, if every group of amorphous alloy core lamination includes dried layer（It is preferred that 5 layers）Amorphous alloy strips.
Wherein, as shown in Fig. 2 each disconnected yoke formula type amorphous alloy wound core includes：Two Hes of core limb 10 being oppositely arranged
Two iron yokes 20 being oppositely arranged.One iron yoke is provided with joining seam portion 21, and rewinding material can be opened or close through the joining seam portion 21.Take
Turning of the length of head 21 no more than joining seam portion both sides.
The core limb 10 of three disconnected yoke formula type amorphous alloy wound cores is each perpendicular to horizontal plane placement, and three disconnected yoke formulas are non-
The window that peritectic alloy rewinding material is surrounded is equilateral triangle, and core limb 10 is semicircle or class semicircle cylinder, and each two is close to
Core limb 10 constitute circular cylinder or approximate circle cylinder.Non-crystaline amorphous metal in above-mentioned each group of amorphous alloy core lamination
The width of band successively successively decreases, thus the core limb of each rewinding material for surrounding is the semicircle or semicircular post of class
Body.Conventional unshakable in one's determination stem is rectangle, so coil needs to press-fit rectangular, disconnected yoke formula amorphous of the invention after complete
The core limb of alloy stereo rewinding material is circular cylinder, directly with circular mould around to finishing, without press-fiting.
The space spacing g in adjacent joining seam portion 21（See Fig. 2）Less than or equal to 1mm, the lap of splice L in joining seam portion 21（See figure
2）It is 8mm ~ 16mm.Air gap in space can influence magnetic circuit, therefore space spacing g is the smaller the better.
The manufacture method of disconnected yoke formula amorphous alloy stereo roll iron core of the present invention for providing, specifically includes：
The first step：Suitable mark wide strip is selected from support according to core dimensions requirement, by five layers of amorphous alloy strips put to
Band machine is put, wide, the initial bandwidth of setting material, termination bandwidth, length, trapezoidal shape band is gone out with slitting mill slitting in software, is detected
Strip width, it is desirable to which its dimensional discrepancy is no more than -0.5 ~+0mm, every layer of thickness of strip is equal；Slitting band out is necessary
Go through band fracture whether smooth, smooth；If jagged, the circular blade for checking slitting mill is needed to have non-notch；Will be vertical
The band cut, with tape-stripping in case band scatters, is placed it in and put on band machine around upper round paper tube, cutting in setting software
Cut the parameters such as technological document, increment, carry out it is horizontal cut, five for obtaining layer amorphous alloy strips be one group of amorphous alloy core lamination,
Detection band length, thickness and weight, it is ensured that meet technical papers regulation, finally give multigroup amorphous alloy core lamination；
Second step：Since the right, the inside bag one of starting set is enclosed, it is then folded around multigroup amorphous alloy core is covered on starting set
Piece, outermost amorphous alloy core lamination is fixed with adhesive tape, obtains rewinding material, is clamped with C-type clamp and rewinding material is clamped, will be outer
Layer silicon steel sheet bag pulls open rewinding material in rewinding material outer layer with scraper, and rewinding material is pulled open outward from level to level, and rewinding material is positioned over
On spike device, supportted in the horizontal direction with hydraulic pressure（That is iron yoke direction）Rewinding material is strutted, makes the outermost band joining seam of rewinding material
Size be 8mm ~ 16mm, the space in adjacent joining seam portion is smaller than being equal to 1mm；In the inner side in rewinding material joining seam portion, first place
Interior silicon steel sheet, then B inner templates are placed, interior silicon steel sheet is positioned over B inner templates centre, supportted vertically with hydraulic pressure（I.e.
Core limb direction）Strut rewinding material, insert A inner templates, A template center position is tapped with rubber hammer, until with rewinding material
Core limb is equal, and exterior sheathing is placed in the outside of the lower unit iron yoke of rewinding material, and gently push-tight A exterior sheathings, are surveyed with slide measure
The overall folded thickness of amount rewinding material, and the exterior sheathing placed with the tight rewinding material both sides of C-type clamp clamp；Hydraulic pressure support and spike are removed, will
Rewinding material is positioned in ladle band, and placement ladle is buckled to fix rewinding material on ladle band, with wrapping pincers and hand baling press
Clamp；
3rd step：The core limb of rewinding material is positioned in rewinding material shaping glue spreading apparatus parallel to horizontal plane, using certain arc
The shaping tool punching of degree fills bandwidth at different levels, it is ensured that rewinding material lower surface is in same plane, makes the lower surface of rewinding material and volume iron
The backing plate of heart shaping glue spreading apparatus is completely attached to, it is desirable to which band wide end surfaces at different levels are smoothed, with the horizontal 30 °, and according to lehr attendant
Skill is annealed to rewinding material under nitrogen protection；
4th step：After to be annealed, amorphous rewinding material lamination layer surface is cleaned with nylon bruss and dust catcher, be allowed to surface cleaning without broken
Piece free from admixture, prevents epoxy resin from leaking into joining seam position, with the gap of the thicker advance packing lamination interlayer of epoxy resin,
Surface unshakable in one's determination coats one layer of diluter thin epoxy resin, epoxy resin is sufficiently submerged in lamination layer, it is desirable to which coating surface is uniform,
Thickness is no more than 1mm, surface bubble-free, after repairing the epoxy resin that edge unshakable in one's determination oozes out with perching knife again after epoxy resin cure,
The special fixtures on rewinding material joining seam portion folder, untill clamping；
5th step：Three rewinding materials are placed with horizontal plane, three rewinding materials surround a triangle, each two volume iron
The angle of the heart is 60 °, is brought into close contact two core limbs 10 with cord belt colligation core limb very close to each other, obtains the present invention
Disconnected yoke formula amorphous alloy stereo roll iron core.
As shown in figure 3, the rewinding material shaping glue spreading apparatus in above-mentioned 3rd step are included：Base 10 ', is arranged on base 10 '
Above and perpendicular to the baffle plate 21 ' of base, it is arranged on base 10 ' angled with base 10 ' and adjacent with the end of baffle plate 21 '
Base plate 22 ', parallel to base plate 22 ' and is movably arranged on the backing plate 23 ' on base plate 22 ', and the support of mobile four hydraulic pressure
30’.Wherein, baffle plate 21 ' and the angle of base plate 22 ' are 60 °, and the fastener of hydraulic pressure support 30 ' is 30 ° with the angle of base 10 '.
Rewinding material shaping glue spreading apparatus also include slide assemblies, and it is arranged on base 10 ' and baffle plate 21 ' and base plate 22 '
Between, can cause that baffle plate 21 ' and base plate 22 ' are moved as needed.
A inner templates in above-mentioned second step are the silicon steel sheets placed along the window A high of single rewinding material, and B inner templates are along list
The silicon steel sheet that the window width B of individual rewinding material is placed.
Annealing process in above-mentioned 3rd step is specifically included：
Step 3.1：The baffle plate 21 ' of rewinding material shaping glue spreading apparatus is enclosed the shapes and sizes put in rewinding material window is agreed with, so
Afterwards, the window of rewinding material is nested with makes rewinding material be positioned on described rewinding material shaping glue spreading apparatus outside baffle plate, will roll up iron
The heart is placed in annealing furnace together with rewinding material shaping glue spreading apparatus；
Step 3.2：The furnace temperature of annealing furnace is set to 340 ~ 380 DEG C, into a stage for intensification；How much it is root that furnace temperature if being set
The trade mark according to amorphous band used determines；
Step 3.3：Rewinding material reaches target temperature and just carries out converter temperature, and rewinding material enters a holding stage；
Step 3.4：Insulation terminates rear rewinding material an into cooling process.
Wherein, in step 3.1, rotating excitation field, the rotating excitation field are applied to rewinding material when temperature unshakable in one's determination reaches 200 DEG C
Magnetic field intensity in more than 2000A/m, processed with certain rotation speed, rotary speed takes 30 according to size unshakable in one's determination~
300rpm.Magnetic-field annealing can be obviously improved the magnetic property of non-crystaline amorphous metal, the remanent magnetism unshakable in one's determination and magnetic conductance annealed using longitudinal magnetic field
Rate increases, and loss becomes big；The characteristics of iron core of transverse magnetic field annealing has low residual magnetic flux density and permanent magnetic conductivity, loss subtracts
It is small；And rotating excitation field has the Comprehensive Characteristics of horizontal and vertical magnetic field treatment, loss reduces while magnetic conductivity is increased.
Wherein, in step 3.2, depending on the time of holding stage is according to rewinding material sectional area, in general soaking time
Control was at 100~300 minutes.
Wherein, in step 3.3, the mode of cooling uses cold wind, that is, open cooling blower and hot-air is taken out from body of heater
Go out, cooldown rate is more than 6 DEG C/min, rewinding material temperature is down to 200 DEG C of closing rotating excitation fields, iron after temperature unshakable in one's determination is down to room temperature
The heart is come out of the stove.
The method of the coated with adhesive in above-mentioned 4th step is specifically included：
Step 4.1：After annealing shaping terminates, treat that rewinding material is cooled to room temperature, four hydraulic pressure supports 30 ' is placed exactly in rewinding material
The lower section at turning, starts four hydraulic pressure supports 30 ', makes jack-up highly more than the thickness of backing plate 23 ', stops rising four hydraulic pressure supports
30’；
Step 4.2：Rewinding material is supportted in addition to the backing plate 23 ' in joining seam portion for being close to rewinding material after 30 ' jack-up by four hydraulic pressure
Its excess-three block backing plate 23 ' is extracted out；
Step 4.3：Releasing agent is coated with the three pieces of backing plates 23 ' extracted out in step 4.2, by binding agent（Preferred epoxy）
It is coated uniformly on three pieces of backing plates 23 ' for scribbling releasing agent, the three pieces of backing plates that will scribble binding agent are put back on base plate 22 ', make pad
Plate 23 ' is gapless with base plate 22 ' to fit；
Step 4.4：Four hydraulic pressure are supportted 30 ' and drops to starting point, the lower surface of rewinding material is fitted with backing plate 23 ', binding agent
It is attached on the lower surface of rewinding material, and by non-two turning coated with adhesive for taking head end of the lower surface of rewinding material, should
The lower surface coating of rewinding material is finished；
Step 4.5：The upper surface of rewinding material is cleaned, it is viscous in the iron yoke coating of the core limb and non-joining seam portion of the upper surface of rewinding material
Knot agent, after to be bonded dose of solidification, the gluing operation of the rewinding material is completed.
The method of above-mentioned coated with adhesive passes through the technique of first progressive die after annealing, and volume iron need not be overturn in coating procedure
The heart, and existing glue spreading method will be annealed after the rewinding material that finishes is put into and is molded in female mold, carries out the first face painting
Glue, coated on two surfaces is carried out after iron core is overturn after the first face epoxy resin cure.
Additionally, the method for above-mentioned coated with adhesive is molded glue spreading apparatus using rewinding material, it is unshakable in one's determination by hydraulic means jack-up,
The epoxy resin on backing plate is attached to lower surface unshakable in one's determination after gluing is carried out to backing plate, eliminate iron core stand up, secondary asphalt mixtures modified by epoxy resin
The time of fat coating solidification, the production efficiency of amorphous three dimensional wound core is improve, reduce progressive die and stand up to amorphous three-dimensional winding iron
The influence of disposition energy.
In sum, the present invention is for providing a kind of disconnected yoke formula amorphous alloy stereo roll iron core and its manufacture method, the volume
Iron core overcomes the difficult shortcoming of continuous yoke three dimensional wound core coiling, using disconnected yoke type amorphous alloy wound core and three rewinding materials
Surround equilateral triangle, it is ensured that three-phase magnetic circuit is full symmetric isometric, it can be ensured that the balance of three phase supply, magnetic resistance is subtracted significantly
It is few, and disconnected yoke rewinding material reduces special spooler installation investment, and the coiling of coil can be completed using existing coil winding machine, and
Can effective control coil each size, need not press-fit so as to ensure that the electric property of transformer, after the completion of coil winding whole
Shape, reduces process for making, improves insulating properties, improve production efficiency.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for of the invention
Various modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (9)
1. a kind of disconnected yoke formula amorphous alloy stereo roll iron core, it is characterised in that the rewinding material is included：Three disconnected yoke formula non-crystaline amorphous metals
Rewinding material；
Each disconnected yoke formula type amorphous alloy wound core is surrounded by some groups of amorphous alloy core laminations, every group of amorphous alloy core lamination
If including dried layer amorphous alloy strips；
The disconnected yoke formula type amorphous alloy wound core of each described includes：Two core limbs being oppositely arranged（10）With two for being oppositely arranged
Individual iron yoke（20）；Wherein, an iron yoke is provided with joining seam portion（21）, through the joining seam portion（21）Can open or closure rewinding material；
Three described core limbs of disconnected yoke formula type amorphous alloy wound core（10）It is each perpendicular to horizontal plane placement, and three disconnected yokes
The window that formula type amorphous alloy wound core is surrounded is equilateral triangle, described core limb（10）It is semicircle or class semicircular pillar
Body, the core limb that each two is close to（10）Constitute the cylinder of circular cylinder or similar round.
2. disconnected yoke formula amorphous alloy stereo roll iron core according to claim 1, it is characterised in that described adjacent joining seam
Portion（21）Space spacing g be less than or equal to 1mm.
3. disconnected yoke formula amorphous alloy stereo roll iron core according to claim 1, it is characterised in that described joining seam portion（21）
Lap of splice L be 8mm ~ 16mm.
4. the manufacture method of the disconnected yoke formula amorphous alloy stereo roll iron core in a kind of 1-3 according to claim described in any one,
Characterized in that, the method is specifically included：
The first step：Select the band of suitable normal width, according to technological requirement slitting go out trapezoidal shape band and carry out it is horizontal cut, obtain
To multigroup amorphous alloy core lamination；
Second step：By starting set, inwardly bag one is enclosed, and around multigroup amorphous alloy core lamination is covered on starting set, fixation is outermost
Amorphous alloy core lamination, obtains rewinding material and clamps it, by outer layer silicon steel sheet bag in rewinding material outer layer, and by rewinding material one
Organize and pull open outward, supportted along rewinding material is both horizontally and vertically strutted with hydraulic pressure, make the outermost band joining seam portion of rewinding material
Lap of splice L be 8mm ~ 16mm, the space spacing g in adjacent joining seam portion is less than or equal to 1mm；
3rd step：The core limb of rewinding material is positioned in rewinding material shaping glue spreading apparatus parallel to horizontal plane, and using annealing
Technique is annealed to rewinding material under nitrogen protection；
4th step：After to be annealed, glue spreading apparatus are molded to rewinding material coated with adhesive using rewinding material；
5th step：To be bonded dose of solidification, three core limbs of rewinding material and horizontal plane are placed, what three rewinding materials were surrounded
Window is equilateral triangle, three rewinding materials is fixed and obtains disconnected yoke formula amorphous alloy stereo roll iron core.
5. the manufacture method of disconnected yoke formula amorphous alloy stereo roll iron core according to claim 4, it is characterised in that the 3rd step
It is middle to be molded glue spreading apparatus using described rewinding material and make the angle of described rewinding material its lower surface and horizontal plane after annealing
Into 30 °.
6. the manufacture method of disconnected yoke formula amorphous alloy stereo roll iron core according to claim 4, it is characterised in that the 3rd step
Described in rewinding material shaping glue spreading apparatus include：Base（10’）, it is arranged on base（10’）Above and perpendicular to the baffle plate of base
（21’）, it is arranged on base（10’）Upper and base（10’）Angled setting and and baffle plate（21’）The adjacent base plate in end
（22’）, parallel to base plate（22’）And it is movably arranged on base plate（22’）On backing plate（23’）；
Described annealing process is specifically included：
Step 3.1：Rewinding material is molded the baffle plate of glue spreading apparatus（21’）The shapes and sizes put in rewinding material window is agreed with are enclosed,
The window of rewinding material is nested with baffle plate（21’）It is outer rewinding material is positioned on described rewinding material shaping glue spreading apparatus, will roll up
It is unshakable in one's determination to be placed in annealing furnace together with rewinding material shaping glue spreading apparatus；
Step 3.2：Furnace temperature is set to 340 ~ 380 DEG C, into a stage for intensification；
Step 3.3：After rewinding material reaches target temperature, it is incubated；
Step 3.4：After insulation terminates, rewinding material enters a cooling process.
7. the manufacture method of disconnected yoke formula amorphous alloy stereo roll iron core according to claim 6, it is characterised in that described
Annealing process is also included：In step 3.2, rotating excitation field is applied to rewinding material when temperature unshakable in one's determination reaches 200 DEG C.
8. the manufacture method of disconnected yoke formula amorphous alloy stereo roll iron core according to claim 6, it is characterised in that the 4th step
Described in the method for coated with adhesive include：
Step 4.1：After annealing shaping terminates, treat that rewinding material is cooled to room temperature, prop up rewinding material, taking for rewinding material is close to by removing
Its excess-three block backing plate outside the backing plate of head（23’）Extract out；
Step 4.2：The three pieces of backing plates extracted out in step 4.1（23’）On be coated with releasing agent, binding agent is coated uniformly on painting
There are three pieces of backing plates of releasing agent（23’）On, three pieces of backing plates of binding agent will be scribbled（23’）Put back to base plate（22’）On, make backing plate
（23’）With base plate（22’）Seamlessly fit；
Step 4.3：The height of rewinding material is reduced to starting point, makes the lower surface of rewinding material and backing plate（23’）Laminating, binding agent is attached
On the lower surface of rewinding material, then by non-two turning coated with adhesive for taking head end of the lower surface of rewinding material, the volume
Lower surface coating unshakable in one's determination is finished；
Step 4.4：The upper surface of rewinding material is cleaned, it is viscous in the iron yoke coating of the core limb and non-joining seam portion of the upper surface of rewinding material
Knot agent, after to be bonded dose of solidification, the gluing operation of the rewinding material is completed.
9. the manufacture method of disconnected yoke formula amorphous alloy stereo roll iron core according to claim 4, it is characterised in that the 4th step
Described in binding agent be epoxy resin, the thickness of described coated with adhesive is less than or equal to 1mm.
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| CN107331495A (en) * | 2017-07-14 | 2017-11-07 | 合肥天威众元电气有限公司 | A kind of three-dimensional grade laminated transformer core of the post of three frame three |
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| JP2001006957A (en) * | 1999-06-23 | 2001-01-12 | Mitsubishi Electric Corp | Iron core and its manufacture |
| CN202102839U (en) * | 2011-05-16 | 2012-01-04 | 河南三三变压器股份有限公司 | Iron core structure of amorphous alloy transformer |
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Address after: Building 1888 Tianchen Road, Qingpu District, Shanghai, 201712 Patentee after: Shanghai Confidence Rigang Electric Co., Ltd. Address before: Building 1888 Tianchen Road, Qingpu District, Shanghai, 201712 Patentee before: Shanghai Metglas Zhixin Amorphous Metals Co., Ltd. |