Dry-type transformer low-voltage coil winding die

A dry-type transformer and low-voltage coil technology, applied in the manufacture of inductors/transformers/magnets, electrical components, circuits, etc., to achieve the effect of reducing process links, reducing raw material costs, and improving service life

Pending Publication Date: 2020-05-22
BEIHAI YINHE TECH TRANSFORMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dry-type transformer low-voltage coil winding mold to solve the technical defects of the existing dry-type transformer

Method used

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  • Dry-type transformer low-voltage coil winding die
  • Dry-type transformer low-voltage coil winding die
  • Dry-type transformer low-voltage coil winding die

Examples

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Embodiment Construction

[0032] Such as figure 1 , 2 with image 3 As shown, a dry-type transformer low-voltage coil winding mold includes a connecting plate 1, an upper inner mold 2, a lower inner mold 3, and bolts 4; the upper inner mold 2 is composed of an auxiliary connecting plate 5, an upper inner mold end plate 6, an upper The inner mold reinforcement plate 7 and the upper mold steel plate 8 are welded, and its surface is composed of multiple arc surfaces and the adjacent arc surfaces are tangent; the lower inner mold 3 is composed of an auxiliary connecting plate 5, a lower inner mold end plate 9, a lower inner mold The reinforcing plate 10, the lower mold steel plate 11, and the copper bar 12 are welded, and its surface is composed of multiple arc surfaces and the adjacent arc surfaces are tangent; the upper inner mold 2 and the lower inner mold 3 are connected by bolts 4 through the connecting plate 1 Into a columnar whole. There is a square shaft hole in the middle of the mold, which is ...

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PUM

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Abstract

The invention discloses a dry-type transformer low-voltage coil winding die which comprises a connecting plate, an upper inner die, a lower inner die and bolts, an upper die steel plate is bent into 3-10 continuous arc surfaces, and the adjacent arc surfaces are tangent; the arc surfaces on the two sides of the lower inner die are composed of 2-5 sections of arc surfaces, and the adjacent arc surfaces are tangent; and the upper inner die and the lower inner die are connected into a columnar whole by bolts through the connecting plate. The problems that according to a traditional long circulardry-type transformer foil type low-voltage coil winding mold, a coil cannot be wound tightly, abnormal sounds of coil loads are prone to being caused, mold deformation is prone to being caused by long-term shaping of the mold, the thickness of coil foil is limited, large-capacity products are not facilitated, and the cost is reduced are solved.

Description

technical field [0001] The invention relates to a low-voltage coil winding die for a dry-type transformer, which belongs to the technical field of high-voltage electrical equipment manufacturing. Background technique [0002] At present, domestic transformer manufacturers have made great progress in transformer manufacturing. Dry-type transformers have become the main power distribution equipment for medium and low voltage transformers. Domestic enterprises have made many innovative achievements in the winding of oblong structure foil low-voltage coils. For example, the publication number 205428688U discloses a casting mold and a fixing frame. The casting mold includes an inner mold, an outer mold, an upper positioning plate and a lower positioning plate. There are C-shaped clips distributed at the joints of the mold and the outer mold; there is a portal frame between the casting mold and the end of the cross; an upper connecting plate and a lower connecting plate are resp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/061
CPCH01F41/061
Inventor 田富
Owner BEIHAI YINHE TECH TRANSFORMER
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