Manufacture of toroidal transformers

A technology of toroidal transformers and manufacturing methods, applied in transformers, inductance/transformer/magnet manufacturing, fixed transformers, etc., can solve labor-intensive, unsuitable for large-scale production of small-scale transformer automation, time-consuming problems, etc., to reduce the relative size Effect

Inactive Publication Date: 2006-08-09
PANPOWER AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the individual winding and placement of many wedge bundles results in the arcuate elongated channels described, and the subsequent entry of the tape into the channels is a very cumbersome, relatively labor intensive and time consuming process not suitable for small Automated mass production of transformers

Method used

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  • Manufacture of toroidal transformers
  • Manufacture of toroidal transformers
  • Manufacture of toroidal transformers

Examples

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Embodiment Construction

[0043] The present invention will now be further described, by way of example and for purposes of illustration only, with reference to the accompanying drawings.

[0044] figure 1 is a perspective view showing an embodiment of a bobbin 10 according to the invention for the manufacture of a toroidal transformer.

[0045] The spool 10 consists essentially of an elongated tube of flexible material. Said flexible material can be, for example, plastic material or rubber. Such flexible material, in addition to making the bobbin 10 suitable for being bent, thus causing the ends of the elongated tubes to be opposite to each other, because the bobbin 10 remains Such a flexible material also provides the added advantage of being sufficiently insulated to withstand the voltage stress between the magnetic core and the coil windings in the toroidal transformer as part of the final assembled toroidal transformer manufactured according to the method of the present invention. The flexible m...

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Abstract

The present invention relates to a novel and efficient method for manufacture of toroidal transformers, a bobbin for manufacture of toroidal transformers and a system for performing said method for manufacture of toroidal transformers. Said method for manufacture of toroidal transformers has properties superior for automated mass production and comprises the steps of arranging a coil around the periphery of at least one hollow bobbin of elongated shape and of flexible material; bending said at least one bobbin, together with said coil, so that the bobbin ends are brought towards each other, one of said bobbin ends defining an opening; and feeding a ribbon of magnetic material through said opening, so that said ribbon is being wound a required amount of tightly packed winding turns inside said bobbin until essentially the whole interior cavity of said bobbin is filled, said ribbon thereby forming a core.

Description

technical field [0001] The present invention relates to toroidal transformers, and in particular to a novel and efficient method for the manufacture of toroidal transformers, a bobbin for the manufacture of toroidal transformers and a system for implementing said method of manufacturing toroidal transformers. Background technique [0002] There have been many proposals to provide a toroidal transformer having a wound, toroidal core and windings around the core. A preferred one proposed by the prior art involves winding processing in which a coil is wound on a continuous toroidal core using a conventional winding machine. Most commonly, the coil is repeatedly threaded through an empty central hole in the transformer. There are also methods using driven rollers such as shown in US Patent 4,771,957. [0003] Alternatively, there have been some proposals how to pack continuous or near continuous core material into preformed windings. One of the earliest examples of this effor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/02H01F41/08
CPCH01F41/022H01F41/08Y10T29/53165Y10T29/49073Y10T29/4902H01F30/16H01F3/04
Inventor J·埃克勒夫A·艾里克松
Owner PANPOWER AB
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