EP0171170A3 - Microwave oven - Google Patents

Microwave oven Download PDF

Info

Publication number
EP0171170A3
EP0171170A3 EP85304692A EP85304692A EP0171170A3 EP 0171170 A3 EP0171170 A3 EP 0171170A3 EP 85304692 A EP85304692 A EP 85304692A EP 85304692 A EP85304692 A EP 85304692A EP 0171170 A3 EP0171170 A3 EP 0171170A3
Authority
EP
European Patent Office
Prior art keywords
magnetron
oven
power supply
battery
inverter
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Withdrawn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
EP85304692A
Other languages
German (de)
French (fr)
Other versions
EP0171170A2 (en
Inventor
Bernard Frederick Fellerman
Stephen John Newton
David Wellcome
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.)
Kenwood Ltd
Original Assignee
Thorn EMI Appliances Ltd
Kenwood 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 Thorn EMI Appliances Ltd, Kenwood Ltd filed Critical Thorn EMI Appliances Ltd
Publication of EP0171170A2 publication Critical patent/EP0171170A2/en
Publication of EP0171170A3 publication Critical patent/EP0171170A3/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Withdrawn legal-status Critical Current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
    • H05B6/6432—Aspects relating to testing or detecting leakage in a microwave heating apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)

Abstract

A microwave oven has a standard control circuit (1) and magnetron (2). To enable the oven to operate from a 24V d.c. battery power supply (9), such as that of a lorry, car, etc., the oven includes a 50 Hz inverter (11) and a transformer (12) for generating an a.c. power supply of mains frequency and volt­ age to drive a fan motor (5) and a timer motor (7) in the circuit (1), and a 150 Hz inverter (13) and another transformer (20) for generating an a.c. power supply of higher frequency and differ­ ent voltages to drive the magnetron (2) and its associated heat­ er (10). The oven also includes a battery sensing circuit (17), which senses fluctuations in the battery voltage level and a control (18) adjusts current to the magnetron (2) accordingly. The control (18) also de-energises the magnetron (2) if the bat­ tery voltage level goes low.
EP85304692A 1984-08-02 1985-07-01 Microwave oven Withdrawn EP0171170A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848419730A GB8419730D0 (en) 1984-08-02 1984-08-02 Microwave ovens
GB8419730 1984-08-02

Publications (2)

Publication Number Publication Date
EP0171170A2 EP0171170A2 (en) 1986-02-12
EP0171170A3 true EP0171170A3 (en) 1987-08-05

Family

ID=10564843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85304692A Withdrawn EP0171170A3 (en) 1984-08-02 1985-07-01 Microwave oven

Country Status (4)

Country Link
EP (1) EP0171170A3 (en)
AU (1) AU4468385A (en)
CA (1) CA1236173A (en)
GB (1) GB8419730D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD759419S1 (en) 2015-02-05 2016-06-21 Diane C. Ruscito Portable microwave

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199998A (en) * 1986-12-30 1988-07-20 Christopher James Wheeler Drive circuitry for a microwave source of a microwave oven
AU592262B2 (en) * 1987-04-30 1990-01-04 Matsushita Electric Industrial Co., Ltd. Magnetron feeding apparatus and method of controlling the same
KR910001986B1 (en) * 1987-04-30 1991-03-30 마쯔시다덴기산교 가부시기가이샤 Magnetron feeding apparatus
GB2206750A (en) * 1987-06-12 1989-01-11 Powamate Limited Battery powered microwave cooking apparatus
US5347109A (en) * 1990-07-25 1994-09-13 Matsushita Electric Industrial Co., Ltd. High-frequency heating apparatus mounted on a motor vehicle
GB2296415A (en) * 1994-12-23 1996-06-26 Stephen Marks Microwave oven
KR20010028449A (en) * 1999-09-21 2001-04-06 윤종용 AC/DC microwave oven capable of supplying an electric power
CN104075353A (en) * 2014-06-30 2014-10-01 沈阳德邦仪器有限公司 Portable microwave oven taking fuel cell as power supply
WO2021145836A1 (en) * 2020-01-15 2021-07-22 Gali Enerji Bakim Onarim İmalat Limited Şirketi Ignition system working with 24 volt energy used in stone oven which operated by natural gas, cng, lpg type gas fuel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2091465A (en) * 1981-01-19 1982-07-28 Baxter Travenol Lab Microwave Heating Apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2091465A (en) * 1981-01-19 1982-07-28 Baxter Travenol Lab Microwave Heating Apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD759419S1 (en) 2015-02-05 2016-06-21 Diane C. Ruscito Portable microwave

Also Published As

Publication number Publication date
GB8419730D0 (en) 1984-09-05
AU4468385A (en) 1986-02-06
EP0171170A2 (en) 1986-02-12
CA1236173A (en) 1988-05-03

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Inventor name: WELLCOME, DAVID

Inventor name: NEWTON, STEPHEN JOHN

Inventor name: FELLERMAN, BERNARD FREDERICK