CN101944423B

CN101944423B - Method for binding iron core of transformer

Info

Publication number: CN101944423B
Application number: CN2010102809205A
Authority: CN
Inventors: 刘桂兰; 张建成; 苗庆祥; 祝亚静; 蒋博毅; 吴芹
Original assignee: Baoding Tianwei Group Co Ltd
Current assignee: Baoding Tianwei Baobian Electric Co Ltd
Priority date: 2010-09-14
Filing date: 2010-09-14
Publication date: 2011-11-09
Anticipated expiration: 2030-09-14
Also published as: CN101944423A

Abstract

The invention relates to a method for binding an iron core of a transformer, which belongs to the technical field of transformer manufacturing processes. The method adopts a technical scheme that: the iron core is bound by a binding machine; an inner binding band of the iron core is a semiconductor electric band (6), and an outer binding band is a special weftless band (3) for iron core binding; packing wood (4) is arranged on the end part of the an exposed head of a coil, and semiconductor electric vanish (7) is coated on the packing wood for shielding the iron core; the semiconductor electric varnish is reliably connected with the semiconductor electric band; and the binding is carried out in a way of combining the iron core binding and the iron core shielding together. When the method is used, the iron core is bounded by the binding machine, the inner binding band of the iron core is the semiconductor electric band, and the outer binding band is the special weftless band for the iron core binding. In the invention, the iron core is bound by the binding machine, the inner binding band of the iron core is the semiconductor electric band, and the outer binding band the special weftless band for the iron core binding. The technology combines the regular iron core binding and an iron core shielding barrel together, and the binding bands have the double function of iron core binding and iron core shielding, so that binding time is shortened and the manufacturing cost of the transformer can be reduced; and using effects are good, binding requirements are met, the iron core is well shielded, and requirements on product quality are met.

Description

A kind of transformer core binding method

Affiliated technical field:

The present invention relates to a kind of transformer core binding method, belong to the transformer manufacturing process technology field.

Background technology:

At present, in the transformer production, the transformer core colligation generally adopts homogenous material to carry out manual or mechanical colligation operation, only reach the purpose of colligation iron core, iron core is not had shielding action, also will be after colligation unshakable in one's determination at the outside shielding cylinder unshakable in one's determination of installing unshakable in one's determination, time is long, has increased manufacturing cost.

Summary of the invention:

The object of the invention provides a kind of transformer core binding method, and bandage has colligation unshakable in one's determination, shielding double action unshakable in one's determination, has shortened the colligation time, reduces the manufacturing cost of transformer, solves the problems referred to above that exist in the background technology.

Technical scheme of the present invention is: a kind of transformer core binding method, the colligation machine that adopts unshakable in one's determination carries out colligation, internal layer bandage unshakable in one's determination is a semi-conductive tape, outer bandage is the special-purpose no latitude band of colligation unshakable in one's determination, end, winding protruding head position is placed and is filled wood, fills wood and goes up the brush semiconductive varnish, and iron core is shielded, semiconductive varnish reliably is connected with semi-conductive tape, colligation unshakable in one's determination is combined with shielding unshakable in one's determination carry out colligation.

Binding method more specifically:

1. when bottoming, after having put the insulation of arm-tie and arm-tie, respectively place a polyimide film in the both sides of bottoming layback plate then, be also referred to as the Capton paper tinsel, be a kind of known high-temperature insulation material, main effect is effectively arm-tie and anticorona band to be separated when colligation, avoids shielding cylinder after the coiling phenomenon of multipoint earthing to occur;

2. core lamination is finished, and before standing up the polyimide film of non-bottoming side is put, and places and fills wood, before filling wood uses, plays shielding action position brush semiconductive varnish; For improving the electric shape of shielding cylinder end, convenient simultaneously follow-up colligation operation will bond together carbon crimped paper and anticorona band with electric iron; Drop for avoiding iron core to stand up filling wood in the process, cooperate binding strap with itself and firm being fixed together unshakable in one's determination with steel band, but will avoid the colligation position;

3. after iron core stands up, use colligation machine unshakable in one's determination to carry out the colligation of shielding cylinder unshakable in one's determination, wherein the inboard is a shielding cylinder unshakable in one's determination, is formed by the semi-conductive tape coiling; The outside is a unidirectional binding tape; Two kinds of bandages are biscuit, directly are installed on the colligation dish, by the upper and lower straight line of colligation dish and self rotatablely move two kinds of belt half lap rising colligations.

The invention has the beneficial effects as follows: adopt the present invention, the colligation machine that adopts unshakable in one's determination carries out colligation, internal layer bandage unshakable in one's determination is a semi-conductive tape, outer bandage is the special-purpose no latitude band of colligation unshakable in one's determination, this technology combines routine colligation unshakable in one's determination and shielding cylinder unshakable in one's determination, this bandage has colligation unshakable in one's determination, shielding double action unshakable in one's determination, has not only shortened the colligation time, and can reduce the manufacturing cost of transformer; Result of use is fine, has both reached the colligation requirement, again iron core has been played excellent shielding effect simultaneously, has satisfied the product quality requirement.

Description of drawings:

Accompanying drawing 1 is an embodiment of the invention schematic diagram;

Accompanying drawing 2 is that inventive embodiments K rotates schematic diagram to the part;

Among the figure: go up yoke 1, go up yoke center line 2, no latitude band 3, fill that wood 4, arm-tie insulate 5, semi-conductive tape 6, semiconductive varnish 7, polyimide film 8, carbon crimped paper 9.

Embodiment:

Below in conjunction with accompanying drawing, the invention will be further described by embodiment.

In an embodiment, the core limb binding structure is: core limb bandage internal layer is a semi-conductive tape 6, and skin is the special-purpose no latitude band 3 of colligation unshakable in one's determination, end, winding protruding head position is placed and is filled wood 4, fill wood and go up brush semiconductive varnish 7, iron core is shielded, semiconductive varnish reliably is connected with semi-conductive tape.

The equipment and the material that use.

Equipment: special-purpose colligation machine unshakable in one's determination;

Material: have the end to fill wood 4, polyimide film 8, semiconductive varnish 7, semi-conductive tape 6, carbon crimped paper 9 and the half-dried netted no latitude glass fiber tape of impregnate with tallow (no latitude band) etc.

Concrete binding method:

1. when bottoming, after having put the insulation of arm-tie and arm-tie, respectively place a polyimide film in the both sides of bottoming layback plate then, be a kind of known high-temperature insulation material, main effect is effectively arm-tie and anticorona band to be separated when colligation, avoids shielding cylinder after the coiling phenomenon of multipoint earthing to occur;

Claims

1. transformer core binding method, it is characterized in that the colligation machine that adopts unshakable in one's determination carries out colligation, internal layer bandage unshakable in one's determination is semi-conductive tape (6), outer bandage is the special-purpose no latitude band (3) of colligation unshakable in one's determination, end, winding protruding head position is placed and is filled wood (4), fills wood and goes up the brush semiconductive varnish, and iron core is shielded, semiconductive varnish (7) reliably is connected with semi-conductive tape, colligation unshakable in one's determination is combined with shielding unshakable in one's determination carry out colligation; Concrete binding method:

1. when bottoming, after having put the insulation of arm-tie and arm-tie, respectively place a polyimide film (8) in the both sides of bottoming layback plate then, be a kind of known high-temperature insulation material, main effect is effectively arm-tie and anticorona band to be separated when colligation, avoids shielding cylinder after the coiling phenomenon of multipoint earthing to occur;

2. core lamination is finished, and before standing up the polyimide film of non-bottoming side is put, and places and fills wood, before filling wood uses, plays shielding action position brush semiconductive varnish; For improving the electric shape of shielding cylinder end, convenient simultaneously follow-up colligation operation bonds together carbon crimped paper (9) and anticorona band with electric iron; Drop for avoiding iron core to stand up filling wood in the process, cooperate binding strap with itself and firm being fixed together unshakable in one's determination with steel band, but will avoid the colligation position;