CN202205546U

CN202205546U - Six-layer stair staggered cyclic arrangement type transformer iron core

Info

Publication number: CN202205546U
Application number: CN201120184431XU
Authority: CN
Inventors: 赵祺; 师尚疆; 冯民权; 罗剑锋
Original assignee: Yunnan Tongbian Electric Apparatus Co Ltd
Current assignee: Yunnan Tongbian Electric Apparatus Co Ltd
Priority date: 2011-05-19
Filing date: 2011-05-19
Publication date: 2012-04-25
Anticipated expiration: 2021-05-19

Abstract

The utility model discloses a six-layer stair staggered cyclic arrangement type transformer iron core, which is formed by stacking transformer iron core sheets, wherein each layer of iron core sheet consists of an iron core sheet group which consists of a middle pole sheet, an upper yoke, a lower yoke, a left pole sheet and a right pole sheet; the transformer iron core is formed by cyclically stacking the iron core sheets in a unit of six layers; in each unit, positions of bevel edge joints of the first iron core sheet layer, the second iron sheet layer and the third iron core sheet layer are uniformly and longitudinally staggered in a fixed direction, and positions of bevel edge joints of the fourth iron core sheet layer, the fifth iron sheet layer and the sixth iron core sheet layer are uniformly staggered in the same manner; in a planar projection, the bevel edge joints of the iron core sheets are arranged according to a sequence of the first layer, the fourth layer, the second layer, the fifth layer, the third layer and the sixth layer, and the staggered distances are uniform; when the iron core works, a magnetic path passing through the iron core sheets is regular and smooth when passing through the bevel edge joints, so that magnetic loss is reduced, magnetic flux density is enhanced, the no-load loss and the no-load current of a transformer are reduced, and the noise level is reduced.

Description

Six layers of staggered cycle arrangement formula transformer core of ladder

Technical field

The utility model belongs to the transformer technology field, relates to a kind of core structure of transformer.

Background technology

The iron core of transformer is piled up by the stack of multilayer lamination and is formed; Every layer of lamination formed by center pillar sheet, upper yoke member, lower yoke member, left side post sheet and the right post sheet, at the two ends of last lower yoke member hypotenuse arranged, and there is drift slot at the middle part; The V-arrangement head is arranged two ends up and down at center pillar, hypotenuse is arranged two ends up and down at side column; The V-arrangement head of center pillar is placed in the drift slot at lower yoke member middle part, and last lower yoke member and left and right sides side column sheet paste to hold together to put together along the hypotenuse at its two ends, forms a hypotenuse seam on the contact-making surface; The last lower yoke member of adjacent two layers lamination is concordant with the dual-side of left and right sides side column sheet, the hypotenuse seam arranged in dislocation at two ends; Be installed in the center pillar sheet at lower yoke member middle part on the adjacent two layers lamination, its V-arrangement capitiform becomes arranged in dislocation; After multi-layer transformer lamination stack is piled up, the compacting of hypotenuse seam mutual dislocation, form transformer core center pillar, go up yoke, yoke, left side post and the right post down; Center pillar, last yoke, following yoke, left side post and the right post can be dismantled and fix along the hypotenuse seam crossing.

Iron core is the magnetic conductor and the structural support of transformer, and the local magnetic of the joint form decision iron core of its hypotenuse and V-arrangement head is close, influences the track of magnetic circuit, influences the no-load loss and the noise level of transformer.In the prior art and since lamination on seam irregular, make that the gap length between the seam differs, magnetic circuit has multidirectional turning round, and causes the magnetic loss of transformer big, the no-load loss and the no-load current of transformer are big, noise is big.

The utility model content

For solve existing in seam on the transformer iron-core piece irregular, cause that the transformer magnetic loss is big, no-load loss and the big problem of no-load current, the utility model provides a kind of six layers of ladder cycle arrangement formula transformer core that interlocks, its embodiment is following:

Six layers of staggered cycle arrangement formula transformer core of ladder; Form by transformer iron-core piece stack accumulation; Every layer of lamination is by the center pillar sheet; Upper yoke member; Lower yoke member; Left side post sheet and the right post sheet are formed; There is hypotenuse at two ends at last lower yoke member; There is drift slot at the middle part; The center pillar sheet has the V-arrangement head in two ends up and down; Left and right sides side column sheet has hypotenuse in two ends up and down; The V-arrangement head of center pillar sheet is installed in the drift slot at lower yoke member middle part; Last lower yoke member and left and right sides side column sheet are drawn close along the hypotenuse at its two ends and are assembled together; The contact edge at the V-arrangement head of center pillar sheet and the contact-making surface of last lower yoke member and last lower yoke member and side column sheet two ends, the left and right sides all forms a hypotenuse seam; Pile up the iron core that constitutes transformer by the stack of multilayer lamination; Its center pillar sheet; Last lower yoke member is concordant with the dual-side of left and right sides side column sheet, the hypotenuse seam mutual dislocation at two ends; Lamination is the iron core that transformer is formed in a unit circulation stack with six layers; In each cycling element; The last lower yoke member of first, second and third layer lamination and left and right sides side column sheet hypotenuse seam evenly misplace along fixed-direction in the vertical; Fourth, fifth, the hypotenuse seam of six layers of lamination evenly misplaces along fixed-direction in the horizontal; The hypotenuse seam at the center pillar sheet two ends of first, second and third layer lamination is in horizontal evenly misplacing along fixed-direction, and the hypotenuse seam at the center pillar sheet two ends of fourth, fifth, six layer of lamination is laterally evenly misplacing along fixed-direction;

The locus of hypotenuse seam that lamination fourth, fifth in each cycling element, six layers are gone up locus and first, second and third layer of hypotenuse seam evenly misplaces; In the hypotenuse seam of plane projection upper core sheet sequence arrangement by first, fourth, two, five, three, six layer, its dislocation distance evenly;

Each iron core lamella all can be piled up by the identical multilayer lamination stack of shape and constitute, and the lamination quantity of each layer lamination stack is identical.

Adopting the present technique scheme, is in the lamination of a unit, in first, second and third layer at six layers; The distance that every layer hypotenuse seam staggers is identical, and in fourth, fifth, six layer, the distance that every layer hypotenuse seam staggers is identical; And the space length that staggers between ground floor and the 4th layer, the second layer and layer 5, the 3rd layer and the layer 6 is also identical, and when iron core was worked, the magnetic circuit that passes through from lamination was through the hypotenuse seam time; Magnetic circuit standard and smooth and easy, thus the loss of magnetic reduced, strengthened magnetic flux density; Reduce the no-load loss and the no-load current of transformer, reduced noise level.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:

Fig. 1 is the structural representation of the transformer iron-core piece of a unit;

Fig. 2 is that A-A is to cutaway view.

Embodiment

Embodiment: as depicted in figs. 1 and 2; A kind of six layers of ladder cycle arrangement formula transformer core that interlocks is piled up by the transformer iron-core piece stack and to be formed, and every layer of lamination formed by center pillar sheet 11, upper yoke member 9, lower yoke member 12, left side post sheet 13 and the right post sheet 10; There is hypotenuse at two ends at last

lower yoke member

9,12; There is drift slot at the middle part, and the center pillar sheet has the V-arrangement head in two ends about in the of 11, and left and right sides side column sheet has hypotenuse in two ends about in the of 13,10; The V-arrangement head of center pillar sheet 11 is installed in the drift slot at

lower yoke member

9,12 middle parts; Last

lower yoke member

9,12 and left and right sides

side column sheet

13,10 are drawn close along the hypotenuse at its two ends and are assembled together, and the contact-making surface of the V-arrangement head of center pillar sheet 10 and last

lower yoke member

9,12 and the contact edge of going up

lower yoke member

9,12 and

side column sheet

13,10 two ends, the left and right sides all form a hypotenuse seam 7, are made up of the iron core of transformer multilayer lamination stack accumulation; The dual-side 8 of its center pillar sheet, last lower yoke member and left and right sides side column sheet is concordant, hypotenuse seam 7 mutual dislocation at two ends; Lamination is the iron core that transformer is formed in a unit circulation stack with six layers; In each cycling element; The last lower yoke member of first, second and

third layer

1,2,3 lamination and left and right sides side column sheet hypotenuse seam 7 evenly misplace along fixed-direction in the vertical; Fourth, fifth, six layer 4,5, the hypotenuse seam 7 of 6 laminations evenly misplace along fixed-direction in the horizontal; The hypotenuse seam 7 at the center pillar sheet two ends of first, second and

third layer

1,2,3 lamination is in horizontal evenly misplacing along fixed-direction, and fourth, fifth, six layer 4,5, the hypotenuse seam 7 at the center pillar sheet two ends of 6 laminations are laterally evenly misplacing along fixed-direction;

The locus of the hypotenuse seam 7 of the locus of hypotenuse seam 7 and first, second and

third layer

1,2,3 evenly misplaces on the lamination fourth, fifth in each cycling element, six

layer

4,5,6; In the hypotenuse seam of plane projection upper core sheet 7 by first, fourth, two, five, three, six

layer

1,4,2,5,3,6 sequence arrangement, its dislocation distance evenly;

Each iron core lamella all can be piled up by the identical two-layer lamination stack of shape and constitute.

Claims

1. staggered cycle arrangement formula transformer cores of six layers of ladder; Form by transformer iron-core piece stack accumulation; Every layer of lamination formed by center pillar sheet (11), upper yoke member (9), lower yoke member (12), left side post sheet (13) and the right post sheet (10), at the two ends of last lower yoke member (9,12) hypotenuse arranged, and there is drift slot at the middle part; Center pillar sheet (11) two ends up and down has the V-arrangement head; Left and right sides side column sheet (13,10) has hypotenuse in two ends up and down, and the V-arrangement head of center pillar sheet (11) is installed in the drift slot at lower yoke member (9,12) middle part, and last lower yoke member (9,12) is drawn close along the hypotenuse at its two ends with left and right sides side column sheet (13,10) and is assembled together; The contact-making surface of the V-arrangement head of center pillar sheet (10) and last lower yoke member (9,12) and last lower yoke member (9,12) all form a hypotenuse seam (7) with the contact edge at left and right sides side column sheet (13,10) two ends; Pile up the iron core that constitutes transformer by the stack of multilayer lamination, the dual-side (8) of its center pillar sheet, last lower yoke member and left and right sides side column sheet is concordant, hypotenuse seam (7) mutual dislocation at two ends; It is characterized in that: lamination is the iron core that transformer is formed in a unit circulation stack with six layers; In each cycling element; The last lower yoke member and the left and right sides side column sheet hypotenuse seam (7) of first, second and third layer (1,2,3) lamination evenly misplace along fixed-direction in the vertical; The hypotenuse seam (7) of fourth, fifth, six layers (4,5,6) lamination evenly misplaces along fixed-direction in the horizontal; The hypotenuse seam (7) at the center pillar sheet two ends of first, second and third layer (1,2,3) lamination is in horizontal evenly misplacing along fixed-direction, and the hypotenuse seam (7) at the center pillar sheet two ends of fourth, fifth, six layer of (4,5,6) lamination is laterally evenly misplacing along fixed-direction.

2. six layers of ladder as claimed in claim 1 cycle arrangement formula transformer core that interlocks; It is characterized in that: the locus of hypotenuse seam (7) that locus and first, second and third layer (1,2,3) of hypotenuse seam (7) are gone up in lamination in each cycling element fourth, fifth, six layers (4,5,6) evenly misplaces; In the hypotenuse seam (7) of plane projection upper core sheet sequence arrangement by first, fourth, two, five, three, six layer (1,4,2,5,3,6), its dislocation distance evenly.

3. six layers of ladder as claimed in claim 2 cycle arrangement formula transformer core that interlocks is characterized in that: each iron core lamella all can be made up of the identical lamination stack of shape, and the lamination quantity of each layer lamination stack is identical.