Title:
CORE STRUCTURE FOR TRANSFORMER WITH GAP
Document Type and Number:
Japanese Patent JP3022196
Kind Code:
B2
Abstract:
PURPOSE: To enhance the reliability of a core structure while simplifying the core stopper metal by composing the leg core and the yoke core of a non- oriented silicon steel plate and setting the abutting part between the leg core and the yoke core normal to the longitudinal direction of the leg core or in parallel therewith.
CONSTITUTION: A leg core 1 and yoke cores 2, 3 are composed of non-oriented silicon steel plate and each leg core 1 is abutted, on the upper and lower end faces thereof, against the longitudinal side faces of the yoke cores 2, 3 so that the abutting part 5 intersects the longitudinal direction of the leg core 1 perpendicularly. A gap 4 intersects the longitudinal direction of the leg core 1 perpendicularly and an external force (p) prevailing over the magnetic attraction in the gap is imparted by an appropriate tightening metal along the longitudinal direction of the leg core 1. However, the external force (p) is applied perpendicularly to the abutting part 5 and a component of force is not generated toward the side face of the core 1. Since a stopper metal for preventing the shift on the side face is simplified, the external force (p) can be increased sufficiently and thereby the reliability is enhanced.
Inventors:
Minoru Kuwata
Application Number:
JP21517194A
Publication Date:
March 15, 2000
Filing Date:
August 05, 1994
Export Citation:
Assignee:
Nissin Electric Co., Ltd.
International Classes:
C22C38/02; H01F27/24; H01F27/245; (IPC1-7): H01F27/245; C22C38/02; H01F27/24
Domestic Patent References:
| JP4303904A | ||||
| JP338610U |
Attorney, Agent or Firm:
Kinnosuke Nakazawa
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