A kind of transformer double-screw type coil
Technical field
Specifically the technical field of the utility model design transformer relates to a kind of transformer double-oil-passage spiral coil.
Background technology
At present for the coil in the transformer; Especially traditional single oil-passage spiral coil of low-voltage, big electric current, its heat dispersion is relatively poor, and most of losses also are not up to state standards; Temperature rise just exceeds standard greatly; If the aging of coil accelerated in coil operation under the environment that temperature rise exceeds standard for a long time undoubtedly, shorten the useful life of coil.For reducing the temperature rise of coil, often when design, reduce the wastage, but this has improved the Transformer Economic cost undoubtedly through the cross section that increases winding wire.
Summary of the invention
The purpose of the utility model is exactly to the existing problem of the single oil-passage spiral coil of above-mentioned tradition, and a kind of transformer double-screw type coil of rational in infrastructure, perfect heat-dissipating is provided.
The utility model is achieved in that a kind of transformer double-screw type coil; Comprise the coil and the insulating end ring at two ends up and down; Its special character is: said coil have along the width of cloth at least three layers; Have between the adjacent two layer line circles plurality of vertical in the coil width of cloth to cushion block, coil between adjacent two cushion blocks and adjacent two cushion blocks constitutes oil duct.
Described a kind of transformer double-screw type coil, its special character is: said coil has three layers.
A kind of transformer double-screw type of the utility model coil; Owing to adopted above-mentioned technical scheme; Promptly a helical winding set inside two heat radiation oil ducts, Duo an oil duct than the single oil-passage spiral coil of tradition, owing to having increased by two radiating surfaces; Improve the heat-sinking capability of coil greatly, reduced the temperature rise of coil.Like this, in country's mark exhaustion range, can carry high electric density, reduce copper consumption.One has effectively strengthened reliability of products, and two come also to have improved economic benefit of enterprises.
Description of drawings
Fig. 1 is the utility model three-dimensional cutaway view.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1; A kind of transformer double-screw type coil; Comprise the coil 1 and the insulating end ring 2 at two ends up and down; Said coil 1 have along the width of cloth to three layers, have between the adjacent two layer line circles 1 plurality of vertical in the coil width of cloth to cushion block 3, the coil 1 between adjacent two cushion blocks 3 and adjacent two cushion blocks 3 constitutes oil duct 4.Said oil duct 4 along the width of cloth to two layers of oil duct 4 are arranged.
Described a kind of transformer double-screw type coil, its special character is: said coil has three layers.
Above-described only is the preferential execution mode of the utility model.Should be pointed out that for the person of ordinary skill of the art under the situation that does not break away from the utility model principle, can also make some improvement and modification, this also is regarded as the protection range of the utility model.