CN201117405Y - Transformer - Google Patents

Abstract

The utility model discloses a transformer with smaller size and lower manufacturing cost, which includes an iron core winded with at least a winding; each winding consists of a single-layer multi-turn coil; all windings form a multi-layer circular structure with the iron core as the center; ventilation air ducts are arranged between adjacent windings and between the innermost windings and the iron core; each winding is designed into at least three segments; each segment at least consists of two turns of coil; ventilation void is arranged between the segments. The transformer is mainly applicable to power supply which supplies power to charge and discharge circuits of an accumulated battery.

Description

Transformer

Technical field

The utility model relates to transformer.

Background technology

In the production technology of storage battery, need carry out alternately charging and discharge to storage battery, this process is called and changes into.At present, the power supply as the storage battery into charge and discharge circuit mainly is made of transformer and controllable silicon.Transformer plays the channeling of isolation, rectification, inversion as the main power component of power supply; The ratio that its cost accounts in whole power supply is quite big.Current transformer, its winding usually adopt traditional continuation mode coiling, adjacent coil together adjacent.In the course of the work, below winding, be provided with ventilation unit, it is carried out wind cooling temperature lowering.Generally, coil in the winding is high more from air inlet temperature rise far away more, coil in winding is wrapped in surperficial insulating barrier because of overheated burning out, just need add the thick line footpath, to reduce caloric value, like this, will cause the size of corresponding transformer framework and auxiliary member all to need to strengthen, thereby increased the volume of transformer, increased the manufacturing cost of transformer.

The utility model content

Technical problem to be solved in the utility model is: a kind of transformer that reduces volume and reduce manufacturing cost is provided.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: transformer, comprise: iron core, be wound with at least one winding on the iron core, each winding constitutes by the individual layer multiturn coil, and it is the multilayer circulus at center that all windings form with the iron core, between the adjacent winding, be provided with the ventilation air channel between the winding of innermost layer and the iron core, each winding is configured at least three sections again, and every section is made of two circle coils at least, is provided with ventilation voids between section and the section.

Be provided with ventilation gap between circle at least one section coil of each above-mentioned winding and the circle.

Above-mentioned transformer is provided with two windings, between the adjacent winding, be set together, form the ventilation air channel by equally distributed many support bars between innermost layer winding and the iron core.

The beneficial effects of the utility model are: between innermost layer of the present utility model winding and the iron core, be provided with the ventilation air channel between winding and the winding, and by with the coil grading in the winding, section with section between form ventilation voids, make that the heat radiation of winding is unobstructed; In addition, also can between circle in the multistage coil on the top of winding (away from air inlet) and circle, ventilation gap be set, make that the heat radiation of winding is more unobstructed, so just can reduce winding line footpath and with the size of corresponding transformer core of winding and auxiliary member, thereby can reduce the volume of transformer, reduce the cost of manufacture of transformer.

Description of drawings

Fig. 1 is the structural representation of internal layer winding of the present utility model and iron core;

Fig. 2 is a plan structure schematic diagram of the present utility model;

Among Fig. 1, Fig. 2: 1, iron core, 2, support bar, 3, interior winding, 31, first sections coils, 32, second sections coils, 33, the 3rd section coil, 34, the 4th sections coils, 4, outer winding, 5, ventilation voids, 6, ventilation gap, 7, go up terminals, 8, terminals down, 9, the ventilation air channel.

Embodiment

Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.

As Fig. 1, shown in Figure 2, transformer described in the utility model, comprise: iron core 1, be wound with outer two windings 3 and 4 on the iron core 1, in, outer winding 3 and 4 constitutes by the individual layer multiturn coil, in, between the outer winding 3 and 4, be set together by equally distributed eight support bars 2 between interior winding 3 and the iron core 1, form ventilation air channel 9, in, outer winding 3 and 4 all is configured to first section coil 31, second section coil 32, the 3rd section coil 33 and 34 4 sections coils of the 4th section coil, these four sections coils are end to end successively, the free end of first section coil 31 and the 4th section coil 34 be respectively winding 3 on, following terminals 7 and 8, the structure of outer winding 4 is identical with the structure of interior winding 3, does not repeat them here; Every section coil is made of two circle coils at least, is provided with the ventilation voids 5 of about 20～30 mm wides between section and the section.In the present embodiment, in the 3rd section coil 33 on the top of transformer (away from air inlet),,, be provided with the ventilation gap 6 of about 2～3 mm wides between circle in this coil and the circle in order to increase its radiating effect because the turn ratio of coil is more.

The utility model is provided with ventilation air channel 9 between the winding 4 between interior winding 3 (innermost layer winding) and iron core 1 and outside interior winding 3 and 1, and pass through respectively with the coil grading in inside and outside winding 3 and 4, between section and section, ventilation voids 5 is set, makes that the heat radiation of inside and outside winding 3 and 4 is unobstructed; In addition, also can between circle in the coil on the top of inside and outside winding 3 and 4 (away from air inlet) and circle, ventilation gap 6 be set, make that the heat radiation of inside and outside winding 3 and 4 is more unobstructed, so just can reduce inside and outside winding 3 and 4 line footpath and with the size of inside and outside winding 3 and 4 corresponding transformer cores and auxiliary member, thereby can reduce the volume of transformer, reduce the cost of manufacture of transformer.

Claims (3)

1. transformer, comprise: iron core, be wound with at least one winding on the iron core, each winding constitutes by the individual layer multiturn coil, it is the multilayer circulus at center that all windings form with the iron core, and between the adjacent winding, be provided with the ventilation air channel between the winding of innermost layer and the iron core, it is characterized in that: each winding is configured at least three sections again, every section is made of two circle coils at least, is provided with ventilation voids between section and the section.

2. transformer as claimed in claim 1 is characterized in that: be provided with ventilation gap between circle at least one section coil of described each winding and the circle.

3. transformer as claimed in claim 1 or 2 is characterized in that: described transformer is provided with two windings, between the adjacent winding, be set together, form the ventilation air channel by equally distributed many support bars between innermost layer winding and the iron core.

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