CN102930972B - Four-dimensional forming die and method for manufacturing core of transformer by adopting die - Google Patents
Four-dimensional forming die and method for manufacturing core of transformer by adopting die Download PDFInfo
- Publication number
- CN102930972B CN102930972B CN201210326522.1A CN201210326522A CN102930972B CN 102930972 B CN102930972 B CN 102930972B CN 201210326522 A CN201210326522 A CN 201210326522A CN 102930972 B CN102930972 B CN 102930972B
- Authority
- CN
- China
- Prior art keywords
- iron
- core
- sheet stock
- volume
- iron core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention discloses a four-dimensional forming die and a method for manufacturing a core of a transformer by adopting the die. The die comprises a substrate and a plurality of fixing parts. A forming groove and pre-embedding grooves for accommodating pre-embedded fixing parts are formed on the substrate. The pre-embedding grooves are formed around the annular forming groove respectively. Each fixing part is distributed on the forming groove, is arranged in a corresponding pre-embedding groove, does not occupy a space defined by a two-dimensional core column section shape structure in the forming groove and a space defined by a two-dimensional loop section shape structure, and is used for pre-shaping a core sheet stock into a wound core preform. The forming groove is provided with an enclosed annular frame shape structure, the cross section of the forming groove is the two-dimensional core column section shape structure, and the longitudinal section of the forming groove is the two-dimensional loop section shape structure, and the cross section and the longitudinal section are used for restraining the shaping and sectional shaping of a wound core part respectively. According to the four-dimensional forming die and a forming method, industrial special sharing and assembly line production modes can be fully used for manufacturing each wound core element required by a three-dimensional wound core.
Description
Technical field
The present invention relates to and a kind ofly manufacture the four-dimensional mould equipment of transformer core and adopt this four-dimensional mould iron core sheet stock to be manufactured the method for iron core, belong to the iron core manufacturing technology field of power transformer.
Background technology
As everyone knows, iron core forms the indispensable core component of power transformer magnetic circuit, and it is made up of iron core column and iron yoke two parts, and iron core column is set with winding, and iron yoke makes whole magnetic circuit form closed-loop path.Existing coiled iron core (being called for short volume iron core) is made up of a silicon strip continuous reeling, 3 D stereo volume iron core is synthesized by three volume iron-core elements, three iron core column with identical parallel center line of this iron core are triangularly arranged, each stem stem is fastened between two by two adjacent volume iron-core elements and forms, form three post stereochemical structures of the three-phase transformer synthesized by three frame set, be equilateral triangle perpendicular to the line at the center of three core limbs on the cross section of center line, three-phase windings is sleeved on three core limbs, becomes equilateral triangle to arrange.Because the magnetic circuit of three iron core cylinders is symmetrical, make no-load current also be symmetrical, volume iron core particularly three-dimensional winding iron core has significant advantage than traditional laminated type iron core, and overall volume is less, core loss reduces, and therefore has more advantage.The making of current three-dimensional winding iron core element have employed winding shaping method, rolls rolling iron-core element by an iron core sheet stock cut (being also permeability magnetic material, band, iron core embryo material) by winding apparatus.Illustrate winding shaping method below in conjunction with four prior art patents and roll up iron core Problems existing with the method manufacture.
The patent No. is that the utility model of 01215038.X discloses a kind of D type takeup type three-dimensional transformer, its volume iron-core element is the rectangle iron core be made up of 4 straight portions adopting winding shaping method to make, because the permeability magnetic material of this core structure inevitably defines concentrated violent flexural deformation between two straight portions, so stress concentrates on the arc portion at four angles, Stress non-homogeneity causes iron core less stable, and opening/closing yoke structure is not set, but without the volume iron-core element of opening/closing yoke structure, great difficulty is added for follow-up suit winding technique and the operation of replacing winding.The patent No. be 97221225.6 utility model disclose a kind of transformer core coiler device, the special equipment that each operation of winding shaping method employs can be understood further many from it, complex operation, production efficiency is low, manufacturing cost is expensive, need larger winding tensions, the elastic force existed due to the permeability magnetic material of Multi-layer Parallel causes difficulty to iron core setting, larger winding tensions still effectively can not compress iron core, and the internal crystal framework of permeability magnetic material can be made to change need increase follow-up temper technique to be recovered.The patent No. be 02130844.6 patent of invention disclose a kind of winding shaping of space triangular symmetrical R type power transformer iron core control method, it is the householder method of winding shaping method, the method adopts complicated motion control device, to detect in real time the motion of band in winding process and to rectify a deviation, band is made to send into winding apparatus from position accurately, motion control device also can control the speed of stepping motor, to realize the real-time deviation correcting to the feed rate of band, obviously, the control device of the form error of this reduction iron core transverse cross section and entity is very complicated.The volume iron-core element rolled due to winding shaping method should not arrange the closed in itself iron core of opening/closing yoke structure, so the coil assembly turned to cannot be set with on stem stem, for addressing this problem, No. 01248127.0 utility model patent provides a kind of rewinding material coil winding machine, by this rewinding material coil winding machine, can on closed in itself iron core direct coiling wire-wound group, but coiling paper tinsel winding also needs special equipment.As can be seen here, the coiling iron core forming process of prior art is difficult to the volume iron core making suit paper tinsel winding, and there are the problems that workability worsens, these adverse effects make its development and apply be subject to serious restriction.
Summary of the invention
The object of this invention is to provide a kind of four-dimensional mould for the manufacture of new-type transformer three-dimensional winding iron core overcoming the problems that above-mentioned workability worsens, each volume iron-core element formed in three volume iron-core elements of this transformer core is folded volume by multilayer open butt joint formula magnetic conduction sheet stock and is formed.Adopt the volume iron-core element of four-dimensional mould manufacture of the present invention to have two arc runway profile, stress equilibrium, stability is fine.
Another object of the present invention is to provide the method that the four-dimensional shaping dies of a kind of use manufactures described volume iron-core element, by core section (two dimension) and profile (two dimension) are formalized simultaneously, and utilize the elastic force of open butt joint formula iron core sheet stock to help to compress self, solve existing winding method and need larger winding tensions and the problems that cause, and short material can be utilized, magnetic resistance can be reduced, low cost of manufacture.
To achieve these goals, present invention employs following several technical schemes.
A kind of four-dimensional mould, for iron core sheet stock is made volume iron-core element, this four-dimensional mould 2 comprises pedestal 20 and multiple fixture 21, described pedestal 20 is provided with forming tank 201 and the built-in groove 202 for holding fixture 21, described each fixture 21 is distributed in forming tank 201, for iron core sheet stock 1 is fixing and preboarding is the pre-shape 12 of volume iron core.Described forming tank 201 has closed annular frame shape and structure 2013, for retraining the shape molding of volume iron-core element 10; The lateral cross section of described forming tank 201 is two-dimentional stem stem cross sectional shape structure 2011, its longitudinal cross-section is two-dimentional loop cross sectional shape structure 2012, be respectively used to retrain the volume stem stem of iron-core element 10, yoke cross section shaping, with the setting making volume iron-core element 10 realize profile and cross section in described forming tank 201 simultaneously.Described built-in groove 202 is arranged around the forming tank 201 of annular respectively, described fixture 21 is arranged in corresponding built-in groove 202, the space that fixture 21 itself is not is not occupied the space limited by two-dimentional stem stem cross sectional shape structure 2011 in forming tank 201 and limited by two-dimentional loop cross sectional shape structure 2012.
The two-dimentional stem stem cross sectional shape structure 2011 of wherein said forming tank 201 is arranged in the relative straight portion of two of forming tank 201, the two-dimentional loop cross sectional shape structure 2012 of described forming tank 201 is arranged in the relative arc portion of two of forming tank 201, and is alternately mutually connected by described two straight portions and two arc radicals by which characters are arranged in traditional Chinese dictionaries tails and surrounds forming tank 201.
Wherein said fixture 21 comprises rigid anchor 211, flexible attachment 212 and cushion block 213, described rigid anchor 211 comprises embedded fixing component 211a and fastening fastening members 211b, embedded fixing component 211a has the structure consistent with the cross sectional shape of volume iron-core element 10 to be formalized, and fastening fastening members 211b coordinates embedded fixing component 211a fastening setting lamination material 1.
Wherein said flexible attachment 212 is silk, the rope or belt that can be used for bundling.
Dismountable fixed connection structure is provided with between wherein said embedded fixing component 211a and fastening fastening members 211b.
The method of the above-mentioned four-dimensional mould manufacture volume iron-core element of employing of the present invention, comprises following processing step:
A, the thickness determining iron core sheet stock 1, width, length prepare iron core sheet stock 1;
B, the iron core sheet stock size and dimension determined according to step a prepare four-dimensional mould 2;
C, be contained in the fixture 21 of four-dimensional mould 2 in advance on the pedestal 20 of four-dimensional mould 2 built-in groove 202 in, iron core sheet stock 1 is placed in the forming tank 201 of the pedestal 20 of four-dimensional mould 2 by sequence, to utilize in the strain of iron core sheet stock 1 and forming tank 201 for retraining the shaping two-dimentional stem stem cross sectional shape structure 2011 of stem stem, for retraining the shaping two-dimentional loop cross sectional shape structure 2012 of loop and for retraining the shaping two-dimentional front shape structure 2013 of framework, iron core sheet stock 1 being retrained rolling iron core blank 11 in the forming tank 201 of pedestal 20;
D, to be welded and fixed with fixture 21 and/or segmentation, the pre-shape 12 of iron core blank 11 preboarding rolling iron core will be rolled up;
E, pre-for volume iron core shape 12 to be exited from pedestal 20 together with fixture 21, form volume iron core drip molding 13;
F, volume iron core drip molding 13 to be annealed and/or dipping lacquer is fixed, and lay down fixture 21, make volume iron-core element 10.
As above the preparation iron core sheet stock 1 described in step a comprises following processing step:
G, according to the volume overall dimension of iron-core element 10, the thickness in monolayer of iron core sheet stock 1, the sequence of iron core sheet stock 1 and the length parameter opening yoke position gained, magnetic conducting band material 101 section cutting is become multilayer iron prop blank 102a and iron yoke blank 102b;
H, width parameter according to the cross sectional shape size gained of the volume overall dimension of iron-core element 10, the thickness in monolayer of iron core sheet stock 1, the sequence data of iron core sheet stock 1 and volume iron-core element 10, cut out each layer iron prop blank 102a, the left margin profile of iron yoke blank 102b and right margin profile respectively, obtain iron prop blank 103a, iron yoke blank 103b;
I, iron prop blank 103a and iron yoke blank 103b is carried out contour edge process and surface treatment, obtain the iron core sheet stock 1 comprising iron prop sheet stock 1a and iron yoke sheet stock 1b.
Contour edge process wherein described in step I comprises the process of proper circle type contour edge.
According to the volume iron-core element 10 manufactured by the method manufacturing volume iron-core element as above of the present invention, this volume iron-core element 10 comprises the first end to end successively straight portion, the first arc portion, the second straight portion and the second arc portion, the vertical section of volume iron-core element 10 is run-track shaped up and down with two arc, six straight portions of three volume iron-core elements 10 combine three the iron prop 100a forming three-phase three-column solid transformer core structure respectively between two, and its cross section is proper circle or approximate proper circle shape.Six arc portions of three volume iron-core elements 10 form six iron yoke 100b up and down of connection three iron props, and yoke post is than fixing.
The four-dimensional forming process that the present invention adopts is without the need to the necessary up-coiler of winding shaping method, the special equipments such as motion control device, occupy place and power is little, based on mould constraint principle, adopt simple die apparatus just can complete the formed machining expecting volume iron-core element from lamination, and forming technology can be realized and open yoke technique completing simultaneously, cutting out a piece of cloth in a way with the minimum material to make two or more articles of clothing of iron core sheet stock can also be realized utilize with short material, thick owing to easily determining the length and width of every layer of iron core development, greatly can reduce the difficulty of the iron core producing complex appearance structure and complicated cross-sectional structure, breach the forbidden zone that existing transformer manufacturing cannot make complicated shape structure needed for user.With opening/closing yoke structure on the volume iron-core element adopting the four-dimensional shaping dies of the present invention and method to manufacture, yoke cutting need not be opened, be convenient to installation and the replacing of winding, its vertical surface is for having the track type of two arc feature, each point stress equilibrium, not only good stability, and technique is simple, is easy to roll tightly control.
Accompanying drawing explanation
Fig. 1 is the process chart adopting four-dimensional mould manufacture volume iron-core element of the present invention.
Fig. 2 is the process chart to iron core sheet stock procedure for preparation in flow chart shown in Fig. 1.
Fig. 3 to Fig. 5 is the structural representation of four-dimensional mould 2 of the present invention, there is shown the pedestal 20 of four-dimensional mould 2 and the shape and structure of fixture 21, wherein: Fig. 3 is the front view of four-dimensional mould 2, Fig. 4 is the A-A cutaway view of Fig. 3, and Fig. 5 is the B-B cutaway view of Fig. 4.
Fig. 6 to Fig. 8 is the shape and structure schematic diagram of the pedestal 20 of the four-dimensional mould 2 shown in further exploded view 3, and wherein: Fig. 6 is the front view of pedestal 20, Fig. 7 is the C-C cutaway view of Fig. 6, and Fig. 8 is the D-D cutaway view of Fig. 7.
Fig. 9 to Figure 11 is the view that the iron core sheet stock 1 after the processing step C of flow chart shown in Fig. 1 forms volume iron core blank 11 in four-dimensional mould 2, wherein: Fig. 9 is front view; Figure 10 is the G-G cutaway view of Fig. 9; Figure 11 is the H-H cutaway view of Figure 10.
Figure 12 to Figure 14 is the schematic diagram that iron core sheet stock 1 forms the pre-shape 12 of volume iron core in four-dimensional mould 2 after the processing step d of flow chart shown in Fig. 1, wherein: Figure 12 is front view; Figure 13 is the I-I cutaway view of Figure 12; Figure 14 is the J-J cutaway view of Figure 13.
Figure 15 to Figure 17 rolls up the shape and structure schematic diagram forming volume iron core drip molding 13 after the pre-shape of iron core 12 exits four-dimensional mould 2 after the processing step e of flow chart shown in Fig. 1, wherein: Figure 15 is front view; Figure 16 is the K-K cutaway view of Figure 15; Figure 17 is the L-L cutaway view of Figure 16.
Figure 18 to Figure 20 is the shape and structure schematic diagram forming volume iron-core element 10 after the processing step f of flow chart shown in Fig. 1, and wherein: Figure 18 is front view, Figure 19 is the M-M cutaway view of Figure 18, and Figure 20 is the N-N cutaway view of Figure 18.
Embodiment
Fig. 1-2 0 shows four-dimensional mould of the present invention and adopts this Making mold transformer to roll up the figure of each execution mode of iron-core element method.Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, but does not form any limitation of the invention.
Transformer core of the present invention comprises the iron prop of suit winding, the iron yoke connecting each iron prop formation closed magnetic circuit and clamping device, three described iron props have parallel identical symmetrical center line, arrange in equilateral triangle, three described iron props and upper and lower six iron yokes form the three-dimensional core structure of three-phase three-column jointly, this three-dimensional winding iron core structure is formed by the iron prop combination of two of three identical volume iron-core elements 10, the periphery of the cross section of iron prop is proper circle or sub-circular, and advantage is electric fields uniform.Each volume iron-core element 10 comprises the first end to end successively straight portion, the first arc portion, the second straight portion and the second arc portion, wherein the height in two straight portions is identical, the radius of curvature in two arc portions is identical, and six straight portions of three volume iron-core elements 10 combine three iron props of the three-dimensional core structure of the three-phase three-column described in being formed respectively between two, six arc portions of three volume iron-core elements 10 form six iron yokes up and down of connection three iron props, under upper yoke, yoke is all semicircle, and yoke post is than being fixing.The vertical section of each volume iron-core element 10 is run-track shaped up and down with two arc, to make stress equilibrium.
Fig. 3 to Fig. 5 is the structural representation of the four-dimensional mould 2 for the manufacture of volume iron-core element 10 of the present invention, four-dimensional mould 2 in embodiment comprises with forming tank 201 and the pedestal 20 of built-in groove 202 and the fixture 21 with cushion block 213, each fixture 21 is distributed in forming tank 201, the forming tank 201 be formed on pedestal 20 has closed annular frame shape, for volume iron-core element 10 is formalized shaping therein, multiple built-in groove 202 distribution is arranged on the annular frame of forming tank 201 in shape, for embedded fixing component 21.The pedestal 20 of four-dimensional mould 2 and the shape and structure of fixture 21 have been shown in Fig. 3-5, Fig. 4,5 shows fixture 21 and comprises rigid anchor 211 and flexible attachment 212, rigid anchor 211 comprises embedded fixing component 211a and fastening fastening members 211b, embedded fixing component 211a has the structure consistent with the cross sectional shape of volume iron-core element 10 to be formalized, not only there is the function that binding is fastening, but also there is effect iron core sheet stock 1 being retrained setting, fastening fastening members 211b plays the effect coordinating embedded fixing component 211a fastening setting lamination material 1.Flexible attachment 212 can be rope, band, silk etc., for bundling volume iron-core element 10.
Fig. 3 is the front view of four-dimensional mould 2 of the present invention, now illustrates how core section (two dimension) and profile (two dimension) to be formalized by the forming tank 201 on the pedestal 20 of four-dimensional mould 2 using the perspective plane shown in Fig. 3 as front simultaneously.It is a two-dimensional framework front shape structure 2013 that Fig. 3 shows the front shape structure that the forming tank 201 on pedestal 20 has, and is the annular frame shape closed, for the profile (two dimension) of the volume iron-core element 10 that formalizes.Fig. 4 is the A-A cutaway view of Fig. 3, Fig. 5 is the B-B cutaway view of Fig. 4, respectively illustrate the relative region, arc portion of two of forming tank 201 in Fig. 4,5 there is two-dimentional loop cross sectional shape structure 2012, two of forming tank 201 relative regions, straight portion have two-dimentional stem stem cross sectional shape structure 2011, they are respectively used to formalize simultaneously and roll up the core section (two dimension) of iron-core element 10, comprise the core section (two dimension) of iron prop and iron yoke.Fig. 4 also show and forms rigid anchor 211 and the embedded fixing component 211a cooperatively interacted and fastening fastening members 211b, also show the rigid anchor 211 in the fixture 21 on pedestal 20, flexible attachment 212 and cushion block 213 in Fig. 5.
Illustrate the execution mode of the pedestal 20 of four-dimensional mould 2 of the present invention below.Fig. 6 to Fig. 8 is the shape and structure schematic diagram of the pedestal 20 of the four-dimensional mould 2 shown in further exploded view 3, illustrated in Fig. 6-8 pedestal 20 and on forming tank 201 structure and be distributed in the structure of the built-in groove 202 in forming tank 201.Wherein: Fig. 6 is the front view of pedestal 20, the two-dimensional framework front shape structure 2013 of the forming tank 201 on pedestal 20 has been shown in Fig. 6 and has been distributed in the structure of the built-in groove 202 in forming tank 201; Fig. 7 is the C-C cutaway view of Fig. 6, and the shape and structure of the two-dimentional loop cross sectional shape structure 2012 of the forming tank 201 on pedestal 20 and the longitudinal cross-section of forming tank 201 and built-in groove 202 has been shown in Fig. 7; Fig. 8 is the D-D cutaway view of Fig. 7, there is shown the shape and structure of the lateral cross section of the two-dimentional stem stem cross sectional shape structure 2011 of the forming tank 201 on pedestal 20, forming tank 201 and built-in groove 202.Each fixture 21 is arranged in corresponding the built-in groove 202 and space limited by two-dimentional stem stem cross sectional shape structure 2011 do not occupied in described forming tank 201 and the space limited by two-dimentional loop cross sectional shape structure 2012.
Below in conjunction with Fig. 1,2 and Figure 12-20 illustrate the method adopting four-dimensional mould 2 of the present invention to manufacture volume iron-core element 10.Wherein, Fig. 1 adopts four-dimensional mould 2 of the present invention to manufacture the process chart of volume iron-core element 10.Fig. 2 is the process chart to the procedure for preparation a of iron core sheet stock 1 in flow chart shown in Fig. 1.Fig. 9 to Figure 11 is the view that the iron core sheet stock 1 after the processing step C of flow chart shown in Fig. 1 forms volume iron core blank 11 in four-dimensional mould 2, wherein: Fig. 9 is front view; Figure 10 is the G-G cutaway view of Fig. 9; Figure 11 is the H-H cutaway view of Figure 10.Installation relation between the embedded fixing component 211a of the rigid anchor 211 in the fixture 21 of the distribution of the iron prop sheet stock 1a of iron core sheet stock 1 and iron yoke sheet stock 1b in the forming tank 201 of four-dimensional mould 2 and iron core sheet stock 1 and four-dimensional mould 2, flexible attachment 212 has been shown in Fig. 9-11.Figure 12 to Figure 14 is the schematic diagram that iron core sheet stock 1 forms the pre-shape 12 of volume iron core in four-dimensional mould 2 after the processing step d of flow chart shown in Fig. 1, wherein: Figure 12 is front view; Figure 13 is the I-I cutaway view of Figure 12; Figure 14 is the J-J cutaway view of Figure 13.The iron prop sheet stock 1a of iron core sheet stock 1 and iron yoke sheet stock 1b is shown in Figure 12-14 in the forming tank 201 of four-dimensional mould 2 by state that the fixture 21 of four-dimensional mould 2 is fixing.Figure 15 to Figure 17 rolls up the shape and structure schematic diagram forming volume iron core drip molding 13 after the pre-shape of iron core 12 exits four-dimensional mould 2 after the processing step e of flow chart shown in Fig. 1, wherein: Figure 15 is front view; Figure 16 is the K-K cutaway view of Figure 15; Figure 17 is the L-L cutaway view of Figure 16.Volume iron core drip molding 13 in Figure 15-17 still formalizes by fixture 21.Figure 18 to Figure 20 is the shape and structure schematic diagram forming volume iron-core element 10 after the processing step f of flow chart shown in Fig. 1, and wherein: Figure 18 is front view, Figure 19 is the M-M cutaway view of Figure 18, and Figure 20 is the N-N cutaway view of Figure 18.Now, volume iron core drip molding 13 formalizes, after laying down fixture 21, volume iron-core element 10 in Figure 18-20 no longer relies on fixture 21 to formalize, illustrate in Figure 18 that volume iron-core element 10 is surrounded jointly by iron prop 100a, iron yoke 100b, there is annular frame structure 100a, with opening yoke structure 100d on volume iron-core element 10.Illustrate in Figure 19 that volume iron-core element 10 has the loop cross sectional shape structure 100c of two circular arc portions, corresponding iron yoke part; The stem stem cross sectional shape structure 100b of volume iron-core element 10 is shown, the iron prop part of corresponding suit coil in Figure 20.The method that four-dimensional mould 2 of the present invention manufactures volume iron-core element 10 comprises the following steps:
A, the thickness determining iron core sheet stock 1, width, length prepare iron core sheet stock 1;
B, the iron core sheet stock size and dimension determined according to step a prepare four-dimensional mould 2;
C, the fixture 21 of four-dimensional mould 2 is contained in advance in the built-in groove 202 on the pedestal 20 of four-dimensional mould 2, iron core sheet stock 1 is placed in the forming tank 201 of the pedestal 20 of four-dimensional mould 2 by sequence, utilize in the strain of iron core sheet stock 1 and forming tank 201 for retraining the shaping two-dimentional stem stem cross sectional shape structure 2011 of stem stem, for retraining the shaping two-dimentional loop cross sectional shape structure 2012 of loop and for retraining the shaping two-dimentional front shape structure 2013 of framework, iron core sheet stock 1 is retrained rolling iron core blank 11 in the forming tank 201 of pedestal 20 simultaneously,
D, to be welded and fixed with fixture 21 and/or segmentation, the pre-shape 12 of iron core blank 11 preboarding rolling iron core will be rolled up;
E, pre-for volume iron core shape 12 to be exited from pedestal 20 together with fixture 21, form volume iron core drip molding 13;
F, volume iron core drip molding 13 to be annealed and/or dipping lacquer is fixed, and lay down fixture 21, make volume iron-core element 10.
Preparation iron core sheet stock 1 described in above-mentioned steps a also comprises following processing step:
G, according to the volume overall dimension of iron-core element 10, the thickness in monolayer of iron core sheet stock 1, the sequence of iron core sheet stock 1 and the length parameter opening yoke position gained, magnetic conducting band material 101 section cutting is become multilayer iron prop blank 102a and iron yoke blank 102b;
H, width parameter according to the cross sectional shape size gained of the volume overall dimension of iron-core element 10, the thickness in monolayer of iron core sheet stock 1, the sequence data of iron core sheet stock 1 and volume iron-core element 10, cut out each layer iron prop blank 102a, the left margin profile of iron yoke blank 102b and right margin profile respectively, obtain iron prop blank 103a, iron yoke blank 103b;
I, iron prop blank 103a and iron yoke blank 103b is carried out contour edge process and surface treatment, obtain the iron core sheet stock 1 comprising iron prop sheet stock 1a and iron yoke sheet stock 1b.Contour edge process described in step I comprises the process of proper circle type contour edge.
Each volume iron-core element 10 is had flexible open butt joint formula iron core sheet stock 1 by multilayer is folded in four-dimensional mould 2 to be rolled into, and the interleaved openings of each iron core sheet stock 1 is arranged, and opening/closing yoke structure is arranged on the docking opening part of each sheet stock 1.Each iron core sheet stock 1 is open butt joint formula, and its elastic force contributes to suit coil, also contributes to iron core self and compresses.The shaping volume iron-core element exited from four-dimensional mould 2 is mounted to 3 D stereo in transformer base and opens yoke core, suit coil and close yoke by opening/closing yoke structure after installing stay, then with resinoid bond integrally.Volume iron-core element 10 on each iron prop is two synthesis, and iron prop expoxy glass adhesion belt binding, is heating and curing afterwards.The folder that iron yoke shaped steel or steel plate are made is clamped by the nut up and down of screw rod, or adopts pyrocondensation belt, nonwoven fabric belts, immersion oil strap, steel band to tighten as clamping band.Because power transformer adopts known mounting part part, these parts are not in the scope of the technical scheme of the technical problem to be solved in the present invention, so the technical scheme of claim of the present invention to these parts does not do concrete restriction, specification of the present invention also omit the description to these parts.
The invention provides the mode making full use of industrialization professional division, production line balance, iron core sheet stock can be formed by the size of technical papers requirement by existing iron core sawing sheet factory, these iron core sheet stocks send iron core factory to carry out edge surface process by four-dimensional mould of the present invention and forming method limit multitool vertical trimming and make volume iron-core element 10, to keep high permeability and to reduce iron core vortex.
The various embodiments described above are available to those of ordinary skill in the art to realize or use of the present invention; those of ordinary skill in the art can be without departing from the present invention in the case of the inventive idea; various modifications or change are made to above-described embodiment; thus protection scope of the present invention not limit by above-described embodiment, and should be the maximum magnitude meeting the inventive features that claim is mentioned.
Claims (10)
1. a four-dimensional mould, for iron core sheet stock (1) being made the volume iron-core element (10) with opening/closing yoke structure, is characterized in that:
Described four-dimensional mould (2) comprises pedestal (20) and multiple fixture (21), described pedestal (20) is provided with forming tank (201) and the built-in groove (202) for holding fixture (21), described each fixture (21) is distributed in forming tank (201), for iron core sheet stock (1) is fixing and preboarding is the volume pre-shape of iron core (12);
Described forming tank (201) has closed annular frame shape and structure (2013), for retraining the shape molding of volume iron-core element (10); The lateral cross section of described forming tank (201) is two-dimentional stem stem cross sectional shape structure (2011), its longitudinal cross-section is two-dimentional loop cross sectional shape structure (2012), the iron core column, the yoke cross section that are respectively used to constraint volume iron-core element (10) are shaping, with the setting making volume iron-core element (10) realize profile and cross section in described forming tank (201) simultaneously;
Described built-in groove (202) is arranged around the forming tank (201) of annular respectively, and described fixture (21) is arranged in corresponding built-in groove (202) and the space limited by two-dimentional stem stem cross sectional shape structure (2011) do not occupied in described forming tank (201) and the space limited by two-dimentional loop cross sectional shape structure (2012);
Described fixture (21) comprises rigid anchor (211), described rigid anchor (211) comprises embedded fixing component (211a) and fastening fastening members (211b), embedded fixing component (211a) has the structure consistent with the cross sectional shape of volume iron-core element (10) to be formalized, and fastening fastening members (211b) coordinates embedded fixing component (211a) fastening setting lamination material (1).
2. four-dimensional mould according to claim 1, it is characterized in that: the two-dimentional stem stem cross sectional shape structure (2011) of described forming tank (201) is arranged in the relative straight portion of two of forming tank (201), the two-dimentional loop cross sectional shape structure (2012) of described forming tank (201) is arranged in the relative arc portion of two of forming tank (201), and is alternately mutually connected by described two straight portions and two arc radicals by which characters are arranged in traditional Chinese dictionaries tails and surrounds described forming tank (201).
3. four-dimensional mould according to claim 2, is characterized in that: described fixture (21) also comprises flexible attachment (212) and cushion block (213).
4. four-dimensional mould according to claim 3, is characterized in that: described flexible attachment (212) is silk, the rope or belt that can be used for bundling.
5. four-dimensional mould according to claim 1, is characterized in that: be provided with dismountable fixed connection structure between described embedded fixing component (211a) and fastening fastening members (211b).
6. adopt as the method for iron-core element is rolled up in the four-dimensional mould manufacture one of in claim 1-5, comprise following processing step:
A, the thickness determining iron core sheet stock (1), width, length prepare iron core sheet stock (1);
B, the iron core sheet stock size and dimension determined according to step a prepare four-dimensional mould (2);
C, the fixture (21) of four-dimensional mould (2) is contained in advance in the built-in groove (202) on the pedestal (20) of four-dimensional mould (2), iron core sheet stock (1) is placed in the forming tank (201) of the pedestal (20) of four-dimensional mould (2) by sequence, utilize in the strain of iron core sheet stock (1) and forming tank (201) for retraining the shaping two-dimentional stem stem cross sectional shape structure (2011) of stem stem, for retraining the shaping two-dimentional loop cross sectional shape structure (2012) of loop and for retraining the shaping two-dimentional front shape structure (2013) of framework, iron core sheet stock (1) is retrained rolling iron core blank (11) in the forming tank (201) of pedestal (20),
D, to be welded and fixed with fixture (21) and/or segmentation, the pre-shape of iron core blank (11) preboarding rolling iron core (12) will be rolled up;
E, the pre-shape of iron core (12) will be rolled up exit from pedestal (20) together with fixture (21), form volume iron core drip molding (13);
F, iron core drip molding (13) annealing will be rolled up and/or dipping lacquer is fixed, and and lay down fixture (21), make volume iron-core element (10).
7. the method manufacturing volume iron-core element according to claim 6, it is characterized in that, the preparation iron core sheet stock (1) described in step a comprises following processing step:
The sequence of g, overall dimension according to volume iron-core element (10), the thickness in monolayer of iron core sheet stock (1), iron core sheet stock (1) and open the length parameter of yoke position gained, becomes multilayer iron prop blank (102a) and iron yoke blank (102b) by magnetic conducting band material (101) section cutting;
The width parameter of h, overall dimension, the thickness in monolayer of iron core sheet stock (1), the sequence data of iron core sheet stock (1) and the cross sectional shape size gained of volume iron-core element (10) according to volume iron-core element (10), cut out each layer iron prop blank (102a), the left margin profile of iron yoke blank (102b) and right margin profile respectively, obtain iron prop blank (103a), iron yoke blank (103b);
I, iron prop blank (103a) and iron yoke blank (103b) are carried out contour edge process and surface treatment, obtain the iron core sheet stock (1) comprising iron prop sheet stock (1a) and iron yoke sheet stock (1b).
8. the method manufacturing volume iron-core element according to claim 7, is characterized in that: the contour edge process described in step I comprises the process of proper circle type contour edge.
9. the volume iron-core element manufactured by method of the manufacture volume iron-core element one of to adopt in claim 6-8, it is characterized in that: described volume iron-core element (10) comprises the first end to end successively straight portion, the first arc portion, the second straight portion and the second arc portion, the vertical section of volume iron-core element (10) is run-track shaped up and down with two arc.
10. volume iron-core element according to claim 9, it is characterized in that: six straight portions of the volume iron-core element (10) described in three combine three iron props (100a) forming three-phase three-column solid transformer core structure respectively between two, its cross section is proper circle or approximate proper circle shape, six arc portions of three volumes iron-core element (10) form six iron yokes (100b) up and down of connection three iron props, and yoke post is than fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326522.1A CN102930972B (en) | 2012-09-05 | 2012-09-05 | Four-dimensional forming die and method for manufacturing core of transformer by adopting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326522.1A CN102930972B (en) | 2012-09-05 | 2012-09-05 | Four-dimensional forming die and method for manufacturing core of transformer by adopting die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102930972A CN102930972A (en) | 2013-02-13 |
| CN102930972B true CN102930972B (en) | 2015-05-20 |
Family
ID=47645749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210326522.1A Active CN102930972B (en) | 2012-09-05 | 2012-09-05 | Four-dimensional forming die and method for manufacturing core of transformer by adopting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102930972B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6336838B2 (en) * | 2014-07-10 | 2018-06-06 | 日特エンジニアリング株式会社 | Antenna coil forming winding device and antenna coil forming method using the same |
| CN105761923B (en) * | 2016-03-01 | 2018-02-09 | 金三角电力科技股份有限公司 | The former and technique of the standard rectangular single frame of non-crystaline amorphous metal triangle rewinding material |
| CN106601441B (en) * | 2017-01-11 | 2019-09-13 | 常州市美格耐特非晶材料有限公司 | A kind of stem is approximate circle amorphous ribbon core, tooling and preparation method thereof |
| CN107731504B (en) * | 2017-09-28 | 2023-11-07 | 深圳市长盈精密技术股份有限公司 | Preparation method of magnet armature belt and magnet armature belt |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6249204B1 (en) * | 2000-02-03 | 2001-06-19 | General Electric Company | Apparatus and method for continuous magnetic core winding of electrical transformers and inductors |
| CN2462523Y (en) * | 2001-01-21 | 2001-11-28 | 谢伟民 | D-shape winding-form 3D transformer |
| CN2494025Y (en) * | 2001-06-08 | 2002-05-29 | 周文举 | Iron core wire winder |
| CN202871559U (en) * | 2012-09-05 | 2013-04-10 | 广东岭先技术投资企业（有限合伙） | Four-dimensional forming die for manufacturing rolling iron core element of transformer and rolling iron core element |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02130903A (en) * | 1988-11-11 | 1990-05-18 | Mitsubishi Electric Corp | Device for forming wound core of transformer |
-
2012
- 2012-09-05 CN CN201210326522.1A patent/CN102930972B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6249204B1 (en) * | 2000-02-03 | 2001-06-19 | General Electric Company | Apparatus and method for continuous magnetic core winding of electrical transformers and inductors |
| CN2462523Y (en) * | 2001-01-21 | 2001-11-28 | 谢伟民 | D-shape winding-form 3D transformer |
| CN2494025Y (en) * | 2001-06-08 | 2002-05-29 | 周文举 | Iron core wire winder |
| CN202871559U (en) * | 2012-09-05 | 2013-04-10 | 广东岭先技术投资企业（有限合伙） | Four-dimensional forming die for manufacturing rolling iron core element of transformer and rolling iron core element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102930972A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102930972B (en) | Four-dimensional forming die and method for manufacturing core of transformer by adopting die | |
| CN205356096U (en) | Coil coiling machine winding former | |
| CN102938298B (en) | Transformer core and manufacture method thereof | |
| CN202871559U (en) | Four-dimensional forming die for manufacturing rolling iron core element of transformer and rolling iron core element | |
| CN106298177A (en) | A kind of three-dimensional open coil iron core, coil and power transformer | |
| KR20110134316A (en) | Method for manufacture of triangular transformer cores made of amorphous metal | |
| JPH04168704A (en) | Molding method for ground coil for magnetically levitated transportation system and the ground coil | |
| CN103081043A (en) | Multi-winding magnetic structures | |
| CN201805327U (en) | Dimension-adjustable coil winding mold | |
| EP2814045A1 (en) | Compact low-loss triangular transformer and method for producing the same | |
| CN103326524A (en) | Inner layer and outer layer tower-shaped coil winding die and coil winding method | |
| CN102983642A (en) | Motor stator with deformable iron core and manufacturing method thereof | |
| CN103247424B (en) | Three-phase stereo fracture type rewinding material | |
| CN210535505U (en) | Winding tool for rectangular spiral parallel copper flat wire winding | |
| CN102930973B (en) | The method of manufacture transformer iron-core piece mould, sheet stock and sheet mould, sheet stock | |
| CN202840866U (en) | Motor armature coil wire tensioning device | |
| CN114496557A (en) | Transformer core three-phase winding preparation equipment | |
| CN110021480B (en) | Wireless charging coil winding tool with high-degree-of-freedom parameter adjusting function and using method thereof | |
| CN202736737U (en) | Apparatus for winding 8-shaped coil | |
| CN210927397U (en) | Novel special winding former for stator coil | |
| CN203733619U (en) | Wire clamping mechanism of winding machine | |
| US9251939B1 (en) | Stationary induction electric apparatus | |
| CN205178673U (en) | Stator core for magnetor | |
| CN215644115U (en) | Frameless hollow coil winding jig | |
| CN106298187B (en) | The single-phase large-scale iron core and its manufacture method continuously wound |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160420 Address after: 510180 Yuexiu District, Guangzhou, Zhongshan, No. four road, room 199, No. 106, room Patentee after: Guangzhou Tong Kai Technology Co.,Ltd. Address before: 100071 Beijing Fengtai District Fengtai Town Street 1 telegraph office building 6 No. 301 Patentee before: Ma Zhigang Effective date of registration: 20160420 Address after: 100071, 301, 6, 1, telegraph tower, Fengtai Town, Fengtai District, Beijing Patentee after: Ma Zhigang Address before: 511457 Guangdong city of Guangzhou province Nansha District Port Road No. 62, room 506 Patentee before: Guangdong Lingxian Technology Investment Enterprise (Limited Partnership) |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160601 Address after: 513000 Guangdong province city of Gold Hill Avenue City administrative center of science and technology museum building 523 room five Patentee after: Yingde first power technology Co.,Ltd. Address before: 510180 Yuexiu District, Guangzhou, Zhongshan, No. four road, room 199, No. 106, room Patentee before: Guangzhou Tong Kai Technology Co.,Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161101 Address after: 100071 Beijing Fengtai District Fengtai Town Street 1 telegraph office building 6 No. 301 Patentee after: Ma Zhigang Address before: 513000 Guangdong province city of Gold Hill Avenue City administrative center of science and technology museum building 523 room five Patentee before: Yingde first power technology Co.,Ltd. |