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Patent Searching and Data


Title:
TRANSFORMER AND COIL MANUFACTURING APPARATUS
Document Type and Number:
Japanese Patent JP2002175923
Kind Code:
A
Abstract:

To provide a transformer, which is improved in productivity and made to have a higher heat dissipating effect by forming a heat dissipating space inside a coil, without having to use a heat-dissipating space-forming member.

A transformer is equipped with a transformer body 1, composed of an iron core and a coil 2 wound on the iron core, and rugged parts 4 and 6 are provided to the coil 2, so as to provide heat dissipating spaces 3 inside the wound coil 2. The heat-dissipating spaces 3 can be formed easily inside the coil 2 of the transformer body 1, dispensing with excess materials and operations, when a heat-dissipating space is provided. A heat-dissipating space forming member is not required, so that the coil can be reduced in cross-sectional area, and the transformer is set lower in material cost than usual, with a simpler constitution, is improved in productivity, for short delivery.


Inventors:
FURUICHI SHUNICHI
KOZU MAMORU
KATSUTA TAKASHI
Application Number:
JP2000373779A
Publication Date:
June 21, 2002
Filing Date:
December 08, 2000
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H01F27/28; H01F27/12; H01F41/04; (IPC1-7): H01F27/28; H01F27/12; H01F41/04
Attorney, Agent or Firm:
Miyai Akio