Title:
REMOVABLE KNOB SWITCH DEVICE AND INDUCTION HEATING COOKER USING KNOB SWITCH
Document Type and Number:
WIPO Patent Application WO/2020/013456
Kind Code:
A1
Abstract:
The present invention provides an induction heating cooker comprising: a heating coil provided in a main body; a knob switch, detachable from and attachable to a knob area formed on one surface of the main body, for adjusting a heating power of the heating coil by rotation when attached to the knob area; a resonance detecting unit for outputting a frequency pulse corresponding to an impedance inflection point that varies according to a degree of rotation of the knob switch; and a control unit for controlling the heating power of the heating coil according to the frequency pulse.
Inventors:
JUNG BYUNGSANG (KR)
YUK GYUNGHWAN (KR)
LEE SEONG HUN (KR)
YUK GYUNGHWAN (KR)
LEE SEONG HUN (KR)
Application Number:
PCT/KR2019/007018
Publication Date:
January 16, 2020
Filing Date:
June 11, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H05B6/06; H05B6/12
Foreign References:
| KR20180025747A | 2018-03-09 | |||
| KR20080055912A | 2008-06-19 | |||
| KR20160028909A | 2016-03-14 | |||
| KR20180044766A | 2018-05-03 | |||
| JP2017162587A | 2017-09-14 | |||
| KR20160028909A | 2016-03-14 |
Other References:
See also references of EP 3823418A4
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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