EP0505082A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electric cooking apparatus
Assignee: Panasonic Holdings Corp
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Filing: 1992-03-11
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Granted: —
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Expires: 2012-03-11
Abstract
Abstract An electric cooking apparatus comprises a power converter (33) which power-converts the amounts of power supplied from an external power source (31) and an incorporated battery (37) to be supplied to a heating energy radiating device (34). The cooking apparatus, which can generate high heating energy output exceeding the current capacity, can realize high speed cooking.
Inventors
- 👤 Naoyoshi Maehara
- 👤 Daisuke Bessyo
- 👤 Yuji Nakabayashi
- 👤 Makoto Shibuya
- 👤 Takahiro Matsumoto
- 👤 Shigeru Kusunoko
- 👤 Susumu Kiritoshi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 10:55
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/02; H; H05; H05B; H05B6/00; H05B6/64; H05B6/66; H05B6/68; H05B6/681; H05B6/682; H05B6/685; H02; H02J; H02J3/00; H02J3/28; H02J3/32; H02M; H02M1/00; H02M1/42; H02M1/4208; H02M1/425; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; Y; Y02; Y02B; Y02B40/00; Y02B70/00; Y02B70/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
96 words
An electric cooking apparatus comprising: a single power converter section (33) for converting power supplied from an AC or DC external power source (31); a heating-energy radiator section (34) for receiving the converted power from the power converter section and radiating heating energy such as micro wave or radiation heat to a heating chamber; and a battery (37) for supplying power to the power converter section; wherein the sum of amounts of power from the external power source and the battery is power-converted by the power converter section to be supplied to the heating-energy radiator section.
Claim 2
Dependent Claim
76 words
An electric cooking apparatus according to claim 1, wherein the heating-energy radiator section is constructed by radio wave radiating means, the power converter section is constructed by a single inverter circuit (35) having one or more semiconductor devices, and also the sum of amounts of power from the external power source and the direct or modified output power from the battery is power-converted by the inverter circuit to be supplied to said heating energy radiator section.
Claim 3
Dependent Claim
63 words
An electric cooking apparatus according to claim 1, wherein said power converter section comprises rectifier means (42) for rectifying the power from the external AC power source into a uni-directional power, and the direct or modified output power from the battery is supplied to the rectifier means to take the sum of amounts of power from the external power source and the battery.
Claim 4
Dependent Claim
39 words
An electric cooking apparatus according to claim 1, wherein said external power source (31) and said battery (37) are connected to constitute a parallel circuit, and the output from the circuit is supplied to said power converter section (33).
Claim 5
Dependent Claim
60 words
An electric cooking apparatus according to claim 1, wherein when the instantaneous voltage of said external power source (31) is a predetermined voltage which is smaller than its maximum voltage, the power from said battery (37) is supplied to said converter section (33) whereby the sum of amounts of power from said external power source and said battery is power-converted.
Claim 6
Dependent Claim
59 words
An electric cooking apparatus according to claim 1, wherein said battery is a battery providing an output of 45 V or less, comprising voltage boosting means (38) for boosting the output from the battery, and wherein the sum of amounts of power from the voltage boosting means and the external power source is supplied to said power converter section.
Claim 7
Dependent Claim
49 words
An electric cooking apparatus according to claim 1, further comprising a smoothing capacitor (69 in Fig. 6) for smoothing the output from said voltage boosting section (38), said capacitor having an electrostatic capacitance providing a sufficiently longer discharging time constant than the period of said external AC power source.
Claim 8
Dependent Claim
56 words
An electric cooking apparatus according to claim 1, further comprising current back-flow preventing means (44 in Figs. 2, 7, 9) for preventing a current from flowing from said external power source into said battery, wherein the direct or modified output from said battery is connected with said external power source through said current back-flow preventing means.
Claim 9
Dependent Claim
26 words
An electric cooking apparatus according to claim 1, further comprising charging means (39) for charging the battery using the power supplied from said external power source.
Claim 10
Dependent Claim
28 words
An electric cooking apparatus according to claim 9, wherein said battery is charged using the power supplied from said external power source while said apparatus does not operate.
Claim 11
Dependent Claim
142 words
An electric cooking apparatus comprising: a single power converter section (33) for converting power supplied from an AC or DC external power source (31); a heating-energy radiator section (34) for receiving the converted power from the power converter section and radiating heating energy such as radio wave or radiation heat to a heating chamber; and a battery (37) for supplying power to said power converting section; a short-time high-output control section (42 in Fig. 10) for controlling the converted power in said power converting section so that it is larger than the stationary maximum value of a continuously operable power for a predetermined time, wherein the sum of amounts of power from the external power source and the battery is supplied to said power converter section so that heating energy is larger than the stationary maximum value of a continuously operable energy.
Claim 12
Dependent Claim
79 words
An electric cooking apparatus according to claim 11, wherein said short-time high-output control section (42 in Fig. 10) controls the converted power in said power converter section so that for a predetermined time after the apparatus starts to operate, it is larger than the stationary maximum value of a continuously operable power for a predetermined time, and so the heating energy when the apparatus starts to operate is larger than the stationary maximum value of a continuously operable energy.
References Cited (Backward Citations)
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