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Patent Searching and Data


Title:
HEATING COOKER
Document Type and Number:
WIPO Patent Application WO/2018/154905
Kind Code:
A1
Abstract:
Disclosed is a heating cooker that is provided with a heating chamber, a heating unit, a brushless motor, a main body control circuit, a direct current power supply circuit, a motor control circuit, and a safety device. The brushless motor is a drive source for a rotation drive mechanism included in the heating unit. The main body control circuit outputs a drive signal for the brushless motor. The direct current power supply circuit supplies the brushless motor with direct current power. The motor control circuit controls drive of the brushless motor corresponding to the drive signal. The safety device comprises a wired logic circuit. The safety device has: a rotation detection element that is configured to detect the rotation state of a rotor of the brushless motor, and output a rotation detection signal; and a switch that cuts off a power supply line connected to the direct current power supply circuit. The safety device controls the switch corresponding to the rotation detection signal and the drive signal. According to this embodiment of the present invention, the highly safe and highly reliable heating cooker using the brushless motor as the drive source for the rotation drive mechanism can be provided.

Inventors:
OTANI RYOSUKE
KATSUBE HIROYUKI
YOTA MASATO
YAMASHITA SEIICHI
Application Number:
PCT/JP2017/043404
Publication Date:
August 30, 2018
Filing Date:
December 04, 2017
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F24C1/00; F24C7/02; F24C7/08
Foreign References:
JPH11304162A1999-11-05
JP2001021146A2001-01-26
JPH05144561A1993-06-11
JP2002089848A2002-03-27
JPH0530642A1993-02-05
JP2002075622A2002-03-15
JP2002014703A2002-01-18
JPH11113274A1999-04-23
JP2017015365A2017-01-19
Other References:
See also references of EP 3587929A4
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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