CN2201715Y

CN2201715Y - Transformer coil

Info

Publication number: CN2201715Y
Application number: CN 94241219
Authority: CN
Inventors: 梁日普
Original assignee: Weihai fengyuan welding equipment factory
Current assignee: Weihai fengyuan welding equipment factory
Priority date: 1994-08-19
Filing date: 1994-08-19
Publication date: 1995-06-21
Anticipated expiration: 2004-08-19

Abstract

The utility model provides a transformer coil, relating to the transformer class. The utility model adopts a flat metal plate which is vertically wound, a definite included angle is formed between the wide surface of the metal plate and the direction of a main magnetic flux, and the main magnetic flux passes through the coil. When the utility model is used, the adverse influence of the skin effect is solved, the quick heat dissipation speed is realized, and the low cost is achieved.

Description

Transformer coil

The utility model belongs to transformer ' s type, specifically a kind of transformer coil.

As everyone knows, for solving the strong current transformer problem of temperature rise, generally adopt and strengthen the coil-conductor cross section, be about to the stranded conductor boundling and around, cause transformer weight to increase like this, and in operating frequency when higher (as: being used for inverter and converter plant), because the existence of kelvin effect, the net sectional area of conductor is reduced, can not solve temperature rise effectively.

The utility model purpose is, provides a kind of cost low, the transformer coil of good heat dissipation effect.

To achieve the above object of the invention, the utility model can realize by following measure, and coil adopts the vertical coiling of pancake metallic plate, and wide of metallic plate constitutes certain angle with the main flux direction of passing coil.

The utility model can realize that also metallic plate is " C " shape substrate by following measure, and " C " shape substrate head and the tail are serial connection mutually, constitutes multiturn coil.

The utility model has solved kelvin effect, has been beneficial to heat radiation, and cost is lower because coil adopts the vertical coiling of metallic plate.

The utility model is described in detail by embodiment below in conjunction with accompanying drawing, wherein

Fig. 1 is structural representation of the present utility model, also is the schematic diagram of a kind of embodiment.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the schematic diagram of the another kind of embodiment of the utility model.

Fig. 4 is the B-B cutaway view of Fig. 3.

Fig. 1, shown in Figure 2, metallic plate 1 adopts flat copper coin to strike out " C " shape substrate, primary coil 3 is wound on the iron core 4, primary coil 3 is wrapped with insulating barrier 2, a plurality of metallic plates 1 are fastened on the insulating barrier 2 successively at interval by the opening of " C " shape substrate, the head and the tail of adjacent metal sheets 1 " C " shape substrate link to each other through metal connecting plate 5, thereby constitute secondary coil with multiturn number, wide main flux direction of promptly passing coil of the utility model metallic plate 1) vertical with iron core 4(, perhaps wide of metallic plate 1 not parallel with the main flux direction of passing coil.

The coil that the utility model metallic plate 1 constitutes also can be primary coil.

Embodiment two: Fig. 3, shown in Figure 4, metallic plate 1 also can strike out " E " shape substrate, promptly two mutually the polyphone " C " shape substrates, the a plurality of metallic plates 1 of the utility model are fastened on the insulating barrier 2 successively at interval by two openings of " E " shape substrate, the head and the tail of two openings of adjacent metal sheets 1 " E " shape substrate connect through a metal connecting plate 5 respectively, thereby constitute two multiturn coils that are in parallel, other frame mode of the utility model is identical with previous embodiment, repeats no more.

Claims

1, a kind of transformer coil is characterized in that coil adopts the vertical coiling of pancake metallic plate, and wide of metallic plate constitutes certain angle with the main flux direction of passing coil.

2, according to the described transformer coil of claim 1, it is characterized in that said metallic plate is " C " shape substrate, adjacent " C " shape substrate head and the tail are serial connection mutually, constitutes multiturn coil.