EP1367860A3 - Microwave oven with fire prevention - Google Patents

Microwave oven with fire prevention Download PDF

Info

Publication number
EP1367860A3
EP1367860A3 EP02254898A EP02254898A EP1367860A3 EP 1367860 A3 EP1367860 A3 EP 1367860A3 EP 02254898 A EP02254898 A EP 02254898A EP 02254898 A EP02254898 A EP 02254898A EP 1367860 A3 EP1367860 A3 EP 1367860A3
Authority
EP
European Patent Office
Prior art keywords
relay
limiting means
current limiting
microwave oven
alternating power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02254898A
Other languages
German (de)
French (fr)
Other versions
EP1367860A2 (en
Inventor
Gyu-Sik Lim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1367860A2 publication Critical patent/EP1367860A2/en
Publication of EP1367860A3 publication Critical patent/EP1367860A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/6414—Aspects relating to the door of the microwave heating apparatus
    • H05B6/6417—Door interlocks of the microwave heating apparatus and related circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The microwave oven includes an alternating power source, a cooking timer (8) for setting cooking time, a relay (6a) for supplying the alternating power to a primary coil (7a) of a high voltage transformer (HVT), and a current limiting means (PTC) for attenuating a surge current produced when the alternating power is applied through the relay. The relay includes a relay coil (6a) and a relay switch (SWIR) responding to the operation of the cooking timer (8). The current limiting means is characterized in that its resistance increases in proportion to internal temperature of the current limiting means. Suitably, the current limiting means is a positive temperature coefficient (PTC) thermistor.
EP02254898A 2002-05-31 2002-07-11 Microwave oven with fire prevention Withdrawn EP1367860A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2002030762 2002-05-31
KR1020020030762A KR20030092915A (en) 2002-05-31 2002-05-31 Microwave oven

Publications (2)

Publication Number Publication Date
EP1367860A2 EP1367860A2 (en) 2003-12-03
EP1367860A3 true EP1367860A3 (en) 2005-07-06

Family

ID=29417462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02254898A Withdrawn EP1367860A3 (en) 2002-05-31 2002-07-11 Microwave oven with fire prevention

Country Status (3)

Country Link
EP (1) EP1367860A3 (en)
KR (1) KR20030092915A (en)
CN (1) CN1463171A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050076210A (en) * 2004-01-20 2005-07-26 삼성전자주식회사 Microwave oven
CN102607077B (en) * 2012-03-29 2014-07-30 合肥荣事达三洋电器股份有限公司 Microwave oven start control method
JP6459113B2 (en) * 2014-07-18 2019-01-30 パナソニックＩｐマネジメント株式会社 Switch device and load control system using the same
CN105591373B (en) * 2014-10-23 2019-04-09 中国石油天然气股份有限公司 Protection circuit of controller
CN111092545B (en) * 2019-12-24 2020-11-17 广东美的白色家电技术创新中心有限公司 Impulse current suppression device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1058482A2 (en) * 1999-05-29 2000-12-06 Samsung Electronics Co., Ltd. Microwave oven

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970032287A (en) * 1995-11-10 1997-06-26 배순훈 Inrush Current Control Device and Method of Microwave Oven
KR19980085394A (en) * 1997-05-29 1998-12-05 배순훈 Inrush current prevention and fire protection device of mechanical microwave oven
KR19990002105A (en) * 1997-06-19 1999-01-15 배순훈 Inrush Current Prevention Circuit of Mechanical Microwave
KR20000075154A (en) * 1999-05-29 2000-12-15 윤종용 Timmer apparatus for a preventing inrush current of a microwave oven

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1058482A2 (en) * 1999-05-29 2000-12-06 Samsung Electronics Co., Ltd. Microwave oven

Also Published As

Publication number Publication date
CN1463171A (en) 2003-12-24
KR20030092915A (en) 2003-12-06
EP1367860A2 (en) 2003-12-03

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