Title:
【発明の名称】低周波電磁誘導加熱器
Document Type and Number:
Japanese Patent JPH0679502
Kind Code:
B2
Abstract:
PURPOSE:To prevent electromagnetic vibration and magnetism leakage and ensure safety and improved thermal efficiency by installing at least 6 induction coils, causing 3-phase alternating current to flow via a prescribed wiring, and making additional required provisions. CONSTITUTION:Six or more electromagnetic induction coils 2 are arranged, for example, equally spaced on the circumference of a single circle, so that the practical center of the magnetic flux generated by them roughly coincides with the practical center of a body 1 to be heated. Two adjacent induction coils, for example, A1 and A2 are connected to either ones of the phases of a three-phase AC power supply, and those located symmetrically to each other, for example, A1 and A4 are connected to each other. With this arrangement, the body 1 to be heated is always attracted by the induction coils 2, and no vibration is produced even when a low frequency power supply is used. A good magnetic flux conductor 7 is also provided to prevent magnetic flux leakage. The induction coils 2 are resin-molded to ensure safety and good appearance. Heating temperature is readily controlled by using current value.
Inventors:
IGUCHI ATSUSHI
Application Number:
JP33796089A
Publication Date:
October 05, 1994
Filing Date:
December 25, 1989
Export Citation:
Assignee:
HAIDETSUKU KK
International Classes:
H05B6/12; H05B6/36; (IPC1-7): H05B6/12; H05B6/36
Attorney, Agent or Firm:
Hiroyuki Ikeuchi
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