CN204390878U - Dry type phase-shifting rectifier transformer - Google Patents

Abstract

Utility model discloses a kind of dry type phase-shifting rectifier transformer, and described transformer comprises: insulating cylinder, combed stay, turn insulation, some line cakes be arranged in parallel, and combed stay is arranged at outside insulating cylinder; Described line cake is Copper Foil or aluminium foil, and each line cake is wound on combed stay.The width 20mm more than line cake width of described turn insulation, is wound on line cake in the middle of turn insulation.The dry type phase-shifting rectifier transformer that the utility model proposes, solves the situation that in existing transformer running, current unevenness is even.The utility model transformer adopts copper (aluminium) paper tinsel to make coil, eliminates the insulation between electromagnetic wire, electric current can be uniformly distributed on winding.Thinner paper tinsel can reduce the advantage of stray loss simultaneously, reduces the wastage further and temperature rise.

Description

Dry type phase-shifting rectifier transformer

Technical field

The utility model belongs to technical field of transformation equipment, relates to a kind of transformer, particularly relates to a kind of dry type phase-shifting rectifier transformer.

Background technology

The supporting high voltage converter of dry type phase-shifting rectifier transformer uses, the coiling of current domestic products with larger capacity many employings secondary many electromagnetic wire parallel waies.With the increase of transformer capacity, parallel conducting wire radical also increases, and meets the demand of transformer temperature rise and loss with this.

When the capacity of transformer increases, wire in parallel is needed also can constantly to increase, owing to there is the difference of inductance and heat transfer aspect between parallel conducting wire, cause the electric current of parallel conducting wire phase can have increasing difference with radical increase in parallel, thus cause the imbalance of the temperature rise of transformer.There is overheated region in transformer, affects the fan-out capability of transformer useful life and transformer.

In view of this, nowadays in the urgent need to designing a kind of new transformer device structure, to overcome the above-mentioned defect of existing transformer device structure.

Utility model content

Technical problem to be solved in the utility model is: provide a kind of dry type phase-shifting rectifier transformer, solves the situation that in existing transformer running, current unevenness is even.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of dry type phase-shifting rectifier transformer, described transformer comprises: iron core column, insulating cylinder, primary winding winding, combed stay, and secondary coil winding comprises some line cakes be arranged in parallel, and combed stay is arranged at outside insulating cylinder, supports each line cake; Described line cake is Copper Foil or aluminium foil, and each line cake is wound on combed stay.

As a kind of preferred version of the present utility model, described insulating cylinder is enclosed within the iron core column of transformer, and insulating cylinder comprises insulating cylinder main body, is provided with screen in the interlayer of insulating cylinder main body, and insulating cylinder main body and screen are cured as one;

Described screen one is whole or multistage Copper Foil or aluminium foil, multistage Copper Foil or aluminium foil adjacent position at regular intervals;

There is setting spacing distance insulating cylinder end, screen end; Insulating cylinder also comprises ground strip, and ground strip welding is drawn; The contact position of ground strip and insulating cylinder bottom part body is provided with boss.

As a kind of preferred version of the present utility model, be provided with turn insulation between described line cake paper tinsel and paper tinsel, the width 20mm more than line cake width of turn insulation, is wound on line cake in the middle of turn insulation.

The beneficial effects of the utility model are: the dry type phase-shifting rectifier transformer that the utility model proposes, and solve the situation that in existing transformer running, current unevenness is even.The utility model transformer adopts copper (aluminium) paper tinsel to make coil, eliminates the insulation between electromagnetic wire, electric current can be uniformly distributed on winding.Thinner paper tinsel can reduce the advantage of stray loss simultaneously, reduces the wastage further and temperature rise.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model transformer.

Accompanying drawing mark is as follows:

1: insulating cylinder 2: combed stay

3: copper (aluminium) paper tinsel 4: turn insulation

5: primary winding winding

Embodiment

Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.

Embodiment one

Refer to Fig. 1, the utility model discloses a kind of dry type phase-shifting rectifier transformer, described transformer comprises: iron core column, insulating cylinder 1, primary winding winding 5, combed stay 2, and secondary coil winding comprises some line cakes be arranged in parallel, and combed stay 2 is arranged at outside insulating cylinder 1; Described line cake is copper (aluminium) paper tinsel 3, and each line cake is wound on combed stay 2; The effect of combed stay supports winding (each line cake), plays skeleton.

Described insulating cylinder is enclosed within the iron core column of transformer, and insulating cylinder comprises insulating cylinder main body, is provided with screen in the interlayer of insulating cylinder main body, and insulating cylinder main body and screen are cured as one.Described screen one is whole or multistage Copper Foil or aluminium foil, multistage Copper Foil or aluminium foil adjacent position at regular intervals.There is setting spacing distance insulating cylinder end, screen end; Insulating cylinder also comprises ground strip, and ground strip welding is drawn; The contact position of ground strip and insulating cylinder bottom part body is provided with boss.

In the present embodiment, between described line cake paper tinsel and paper tinsel, be provided with turn insulation 4, the width 20mm more than line cake width of described turn insulation 4, line cake be wound in the middle of turn insulation 4.

Calculate according to transformer electromagnetism and determine suitable copper (aluminium) paper tinsel width, thickness check transformer eddy current loss; Turn insulation is chosen and is added 20mm according to copper (aluminium) paper tinsel width, is wound on by paper tinsel in the middle of turn insulation; Overall dipping lacquer solidification after coil winding completes.

The utility model solves the situation that in existing transformer running, current unevenness is even.Adopt copper (aluminium) paper tinsel to make coil, eliminate the insulation between electromagnetic wire, electric current can be uniformly distributed on winding.Thinner paper tinsel can reduce the advantage of stray loss simultaneously, reduces the wastage further and temperature rise.

Utility model solves the concrete scheme that its technical problem adopts: the computing formula of transformer eddy current loss is:

$P_B=P_{\mathrm{Bx}}W{L}_P{n}_1/l=\frac{{\mathrm{\ω}}^2{B}_m{a}^{3}b{L}_P{\mathrm{Wn}}_1}{24{\mathrm{\ρ}}_r}$

PB is eddy current loss, and ω is angular speed, and Bm is leakage-flux density, and a is conductor thickness, and b is conductor width, and Lp is that circle is long, and W is the number of turn, and n1 is radical in parallel, and ρ r is resistivity.

In sum, the dry type phase-shifting rectifier transformer that the utility model proposes, solves the situation that in existing transformer running, current unevenness is even.The utility model transformer adopts copper (aluminium) paper tinsel to make coil, eliminates the insulation between electromagnetic wire, electric current can be uniformly distributed on winding.Thinner paper tinsel can reduce the advantage of stray loss simultaneously, reduces the wastage further and temperature rise.

Here description of the present utility model and application is illustrative, not wants by scope restriction of the present utility model in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present utility model or substantive characteristics, the utility model can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the utility model scope and spirit, can other distortion be carried out here to disclosed embodiment and change.

Claims (2)

1. a dry type phase-shifting rectifier transformer, it is characterized in that, described transformer comprises: iron core column, insulating cylinder, primary winding winding, secondary coil winding, combed stay, and secondary coil winding comprises some line cakes be arranged in parallel, combed stay is arranged at outside insulating cylinder, supports each line cake; Described line cake is Copper Foil or aluminium foil, and each line cake is wound on combed stay.

2. dry type phase-shifting rectifier transformer according to claim 1, is characterized in that:

Described insulating cylinder is enclosed within the iron core column of transformer, and insulating cylinder comprises insulating cylinder main body, is provided with screen in the interlayer of insulating cylinder main body, and insulating cylinder main body and screen are cured as one;

Described screen one is whole or multistage Copper Foil or aluminium foil, multistage Copper Foil or aluminium foil adjacent position at regular intervals;

There is setting spacing distance insulating cylinder end, screen end; Insulating cylinder also comprises ground strip, and ground strip welding is drawn; The contact position of ground strip and insulating cylinder bottom part body is provided with boss.