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Title:
SWITCHING TRANSFORMER
Document Type and Number:
Japanese Patent JP2007157956
Kind Code:
A
Abstract:

To provide a switching transformer suitable for mass production capable of cost reduction, miniaturization by reducing a material cost and improvement in assembly properties while improving performance.

A coil bobbin having a conventional hoisting drum is not used, and a terminal is planted on a lower surface and a substantially reverse-T shaped core 3 equipped with middle leg is integrally provided on a terminal bench 1 with a substantially flattened upper surface. A coil 6 is wound by winding an electric wire 6a on a periphery of the middle leg core 3b protruded from the upper surface 1a of the terminal bench 1. A C-type core 4 is assembled into the resulting assembly.


Inventors:
WATANABE OSAMU
Application Number:
JP2005350159A
Publication Date:
June 21, 2007
Filing Date:
December 05, 2005
Export Citation:
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Assignee:
TAMURA SEISAKUSHO KK
International Classes:
H01F30/00; H01F27/24; H01F27/28; H01F27/30
Domestic Patent References:
JPH1050542A1998-02-20
JP2005303034A2005-10-27
JP2003163125A2003-06-06
JP2003163123A2003-06-06
JPH08167531A1996-06-25
JPH06163266A1994-06-10
JPH05291062A1993-11-05
Attorney, Agent or Firm:
高山 道夫