CN101447282B

CN101447282B - Butt three-phase five-limb amorphous core device with approximate-circle cross-section

Info

Publication number: CN101447282B
Application number: CN2008101140615A
Authority: CN
Inventors: 徐继斌; 何力; 张卫国; 徐磊
Original assignee: BEIJING ZHONGJI LIANGONG AMORPHOUS TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: BEIJING ZHONGJI LIANGONG AMORPHOUS TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2008-05-30
Filing date: 2008-05-30
Publication date: 2012-05-23
Anticipated expiration: 2028-05-30
Also published as: CN101447282A

Abstract

The invention relates to a butt three-phase five-limb amorphous core device with an approximate-circle cross-section, comprising two outer amorphous cores, two inner amorphous cores and three coils. The amorphous cores are arranged in sequence, wherein, the two inner amorphous cores are positioned between the two outer amorphous cores side by side; the core plates of any amorphous core are divided into a plurality of butt groups with different lengths, and the two ends of one butt group are butted at bonding land of cores to form a micro seam; the core plates of one amorphous core also have different widths, wherein, the core plates arranged outside are wider than the core plates arranged inside; the two ends of the cross-section of core limbs take the shape which is similar to arc with the middle part raised; and the two ends of each coil respectively take the shape of arc which is similar to the two ends of the core limbs. The butt three-phase five-limb amorphous core device of the invention has compact structure, is not only beneficial to the saving of the usage of copper in the coils and the conduction of magnetic flux, but also beneficial to preventing the insulating materials of the coils from being damaged by extrusive corner angles and is mainly used in corresponding amorphous transformers.

Description

The dock three-phase five-limb amorphous core device of cross section approximate circle

Technical field

The present invention relates to a kind of dock three-phase five-limb amorphous core device of cross section approximate circle, belong to technical field of electricity, mainly can be used for various many iron-core transformers.

Technical background

The amorphous core that is used for many iron-core transformers forms the electromagnetic field loop of a closure by the several layers lamination is folded built in together, is used to transmit magnetic flux; On the core limb of both sides unshakable in one's determination, put coil; Produce alternating magnetic field behind the coil electricity, the magnetic flux in this magnetic field is passed to another coil to form induced current, realize the effect of NE BY ENERGY TRANSFER and transformation thus through iron core; The width of each layer lamination in the present same amorphous core all is identical; The cross section of the side arm unshakable in one's determination that forms thus is rectangular, and the loop coil that is enclosed within on the core limb also should be rectangular, could adapt with the shape of core limb.Adopt this core construction, the copper consumption of coil is bigger, and the corner angle of corner unshakable in one's determination damage the insulating material on the coil easily.

Summary of the invention

For overcoming the above-mentioned defective of prior art; The invention provides a kind of dock three-phase five-limb amorphous core device of cross section approximate circle; Adopt this combination unshakable in one's determination to help reducing the copper consumption of coil, and be difficult for giving the insulating material of coil and cause damage because of corner angle unshakable in one's determination.

The present invention realizes that the technical scheme of above-mentioned purpose is: a kind of dock three-phase five-limb amorphous core device of cross section approximate circle; Comprise two outer amorphous cores, two interior amorphous cores and three coils, said each amorphous core is arranged in order, and amorphous cores are side by side outside said two between the amorphous core in said two; The side arm of said adjacent amorphous core joins; The side arm that joins constitutes core limb, and the lamination in said arbitrary amorphous core is divided into some butt joint groups that are uneven in length, the lamination equal in length of same butt joint group; Dock in this iron core bonding land each other at the two ends of same butt joint group; Form a small seam, the small seam of the adjacent butt joint group gap that on the tangential direction of iron core, is separated by, the lamination of same amorphous core also has different widths; The width of the lamination outside wherein being positioned at is greater than the width that is positioned at inboard lamination; The two ends of the cross section of said each core limb all are the shape that is similar to arc of intermediate projections, and said each coil is enclosed within respectively on each self-corresponding core limb, and the two ends of each coil are respectively and the similar arc in said core limb two ends.

The invention has the beneficial effects as follows: because the small seam of adjacent difference butt joint group is not together; Any small seam is all covered by the lamination of adjacent set; Realized the connection of this small seam through the lamination of adjacent set; Reduced the influence of seam thus effectively, improved the performance of body unshakable in one's determination the magnetic flux transmission capacity; Because same group lamination equal in length has made things convenient for the shearing of lamination, helps to provide production efficiency, reduces cost; Because the width of the lamination outside being positioned on the same iron core is greater than the width that is positioned at inboard lamination, when the adjacent side arm of two iron cores constituted a core limb, the lamination that is positioned at the core limb mid portion was wideer than the lamination that is positioned at the core limb side; Formed the shape that is similar to circular arc or other arcs of intermediate projections thus at the two ends of core limb cross section; Correspondingly, the two ends that are enclosed within the coil on the core limb also are the shape of approximate circular arc or other arcs, therefore under identical area of section; The girth of the coil of this shape is little; Help saving the copper consumption of coil, simultaneously, because edge unshakable in one's determination, existing relatively square-section, the edge of core limb wants much level and smooth; Do not have the sort of very outstanding rectangle corner angle, therefore effectively avoided the phenomenon of rectangle corner angle infringement coil insulation material.

Description of drawings

Fig. 1 the present invention relates to join partial cross section's structural representation of side arm unshakable in one's determination of two of core limb cross sectional shape;

Fig. 2 is a main TV structure sketch map of the present invention;

Fig. 3 is the sketch map that shows docking structure unshakable in one's determination.

Embodiment

Referring to Fig. 1-3, the invention provides a kind of dock three-phase five-limb amorphous core device of cross section approximate circle, comprise two outer amorphous cores 110, two interior amorphous cores 120 and three coils 400; Said each amorphous core is arranged in order; Said two outside between the amorphous core, the side arm of said adjacent amorphous core joins amorphous cores, the side arm that joins formation core limb side by side in said two; Lamination in said arbitrary amorphous core is divided into some butt joint groups that are uneven in length; The lamination equal in length of same butt joint group, dock in this iron core bonding land each other at the two ends of same butt joint group, forms a small seam; The small seam of the adjacent butt joint group gap that on the tangential direction of iron core, is separated by; The lamination of same amorphous core also has different widths, and the width of the lamination outside wherein being positioned at is greater than the width that is positioned at inboard lamination, and the two ends of the cross section of said each core limb all are the shape that is similar to arc of intermediate projections; Said each coil is enclosed within respectively on each self-corresponding core limb, and the two ends of each coil are respectively and the similar arc in said core limb two ends.

Constitute because said core limb is two side arms unshakable in one's determination, so the cross sectional shape left-right symmetric of said core limb, two ends are the stairstepping of symmetry.

The said lamination of same iron core can be divided into some groups, and the width of same group lamination equates thus under the situation that guarantees actual effect, to reduce difficulty of processing as much as possible.

For example, the lamination of said same amorphous core can be divided into three groups, and it is the wideest to be positioned at one group of lamination of outermost, and it is the narrowest to be positioned at the most inboard one group of lamination.Among the embodiment for example shown in the drawings; Lamination on the same amorphous core is divided into three groups exactly; Lamination group on one of them amorphous core indicates with 111,112,113 respectively, and the lamination group on another amorphous core indicates with 121,122,126 respectively.

The lamination of same amorphous core also can adopt other packet modes, for example is divided into four groups or two groups.When being divided into four groups, some laminations of said same amorphous core are divided into four groups, and the lamination width of each group reduces from outside to inside successively; When being divided into two groups, the lamination width that is positioned at one group in the outside is greater than being positioned at inboard one group lamination width.

When number of packet is got over for a long time; The core limb cross-sectional shape is level and smooth more; But processing is trouble more; Therefore can take all factors into consideration the packet mode of lamination according to the performance requirement of iron core combination, size and process equipment and the many-sided factor of processing quantity unshakable in one's determination, on cost and performance, obtain the balance point an of the best.

Each stand out of organizing between the lamination should make that the shape at two ends, core limb cross section is a circular arc or other level and smooth arcs generally.

According to applicant's experiment, this amorphous core structure also helps improves performance unshakable in one's determination, helps reducing sectional area unshakable in one's determination, and then reduces consumption of materials unshakable in one's determination.

The main TV structure of said each amorphous core is generally the straight-flanked ring of four angular distortions.

This amorphous core can adopt existing mode to make, and the amorphous steel band of employing different in width is sheared out the lamination of different in width, can adopt existing various packaged type and joint design.

Claims

1. the dock three-phase five-limb amorphous core device of a cross section approximate circle comprises two outer amorphous cores, two interior amorphous cores and three coils, and said each amorphous core is arranged in order; Amorphous cores are side by side outside said two between the amorphous core in said two; The side arm of said adjacent amorphous core joins, and the side arm that joins constitutes core limb, it is characterized in that the lamination in arbitrary amorphous core is divided into some butt joint groups that are uneven in length; The lamination equal in length of same butt joint group; Dock in this iron core bonding land each other at the two ends of same butt joint group, forms a small seam, the small seam of the adjacent butt joint group gap that on the tangential direction of iron core, is separated by; The lamination of same amorphous core also has different widths; The width of the lamination outside wherein being positioned at is greater than the width that is positioned at inboard lamination, and the two ends of the cross section of said each core limb all are the shape that is similar to arc of intermediate projections, and said each coil is enclosed within respectively on each self-corresponding core limb; The two ends of each coil are respectively and the similar arc in said core limb two ends; The said lamination of same iron core is divided into some groups, and the width of same group lamination equates that the amorphous steel band of employing different in width is sheared out the lamination of different in width.

2. the dock three-phase five-limb amorphous core device of cross section approximate circle as claimed in claim 2 is characterized in that the cross sectional shape left-right symmetric of said each core limb, and two ends are the stairstepping of symmetry.

3. the dock three-phase five-limb amorphous core device of cross section approximate circle as claimed in claim 3 is characterized in that some laminations of said same amorphous core are divided into three groups, and it is the wideest to be positioned at one group of lamination of outermost, and it is the narrowest to be positioned at the most inboard one group of lamination.

4. the dock three-phase five-limb amorphous core device of cross section approximate circle as claimed in claim 3 is characterized in that some laminations of said same amorphous core are divided into four groups, and the lamination width of each group reduces from outside to inside successively.

5. the dock three-phase five-limb amorphous core device of cross section approximate circle as claimed in claim 3; The some laminations that it is characterized in that said same amorphous core are divided into two groups, and the lamination width that is positioned at one group in the outside is greater than being positioned at inboard one group lamination width.