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1. 发明公开

EP0067235A4 INDUCTION HEAT COOKING APPARATUS. 失效
标题翻译：与感应加热烹调。
公开(公告)号：EP0067235A4
公开(公告)日：1983-04-18
申请号：EP82900144
申请日：1981-12-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HIRAI YUKIO , AMAGAMI KEIZO , KOBAYASHI TAKAO , MATSUMOTO SHINICHI
IPC分类号： H05B6/06 , H05B6/12 , F24C7/06
CPC分类号： H05B6/062 , H05B6/1263

2. 发明公开

EP0069153A4 INDUCTION HEATING COOKING APPARATUS. 失效
标题翻译： INDUKTIV BEHEIZTER KOCHAPPARAT。
公开(公告)号：EP0069153A4
公开(公告)日：1983-06-08
申请号：EP82900143
申请日：1981-12-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OGINO YOSHIO , KOBAYASHI TAKAO , TSUDA YUJI , NISHIMURA HITOSHI
IPC分类号： A47J27/00 , H05B6/06 , H05B6/12
CPC分类号： H05B6/062
摘要： Induction heat cooking apparatus for heating a pan or the like by induction heating. A touch-control key is used as an input unit (14), and the input unit (14) is additionally equipped with a timer function (21) such that the power source is not turned on unless at least two keys are operated correctly within a predetermined interval. In addition, a timer function (29) is provided whose operation is linked to alarm devices (36) and (37), and an alarm is automatically raised in case the pan is misaligned or there is no load. This provides a high safety induction heat cooking apparatus.
摘要翻译：通过感应加热来加热锅等的感应加热烹调装置。触摸控制键被用作输入单元（14），并且输入单元（14）附加地配备有定时器功能（21），使得电源不被打开，除非至少两个键被正确地操作预定的时间间隔。另外，提供了一个定时器功能（29），其操作链接到报警装置（36）和（37），并且在锅未对准或没有负载的情况下，报警会自动提升。这提供了一种高安全感应加热烹饪设备。

3. 发明专利

DE3174118D1 INDUCTION HEATING COOKING APPARATUS 未知
公开(公告)号：DE3174118D1
公开(公告)日：1986-04-17
申请号：DE3174118
申请日：1981-12-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OGINO YOSHIO , KOBAYASHI TAKAO , TSUDA YUJI , NISHIMURA HITOSHI
IPC分类号： H05B6/12

4. 发明专利

FI56913B 未知
公开(公告)号：FI56913B
公开(公告)日：1979-12-31
申请号：FI276672
申请日：1972-10-06
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AMAGAMI KEIZO , MORI HAZIME , KOBAYASHI TAKAO , KIUCHI MITSUYUKI , OGINO YOSHIO
IPC分类号： H02M7/523 , H05B6/06 , H05B6/12 , H05B5/08
摘要： 1387470 Induction heated cooking apparatus, inverters MATSUSHITA ELECTRIC INDUSTRIAL CO 26 July 1972 [10 April 1972 (3) 11 April 1972 12 April 1972] 35004/72 Heading H2H and H2F [Also in Division H1] Cooking apparatus comprises a utensil 33 heated by means of an induction heating coil 31 carried below an electrically insulated non- metallic plate 57 the coil 31 being energized by way of an inverter fed from a rectified A.C. source 20, the power delivered to the coil 31 being controlled by an adjustable inductor 34 and all the components of the rectifying-inverting circuit being housed in a metallic screening device 58, 59 to eliminate interference with other electrical apparatus such as a radio. The inverter comprises an A.C. source 20, and a full wave rectifier 28 which produces D.C. on lines 24, 25 by means of which a capacitor 29 is charged when a thyristor 53 is gated on. When the thyristor 35 is gated on, the capactior 29 discharges and charges in an oscillatory fashion by way of an inductor 30 thus providing a high frequency supply for the induction coil 31. When a main switch 21 is closed a thyristor 52 is gated on and a capacitor 50 of a zero volts circuit 45 charges up over a resistor 48. When the capacitor voltage reaches a predetermined level a transistor 49 is triggered on to render the thyristor 52 non-conductive when the voltage thereacross falls to zero. On becoming non- conductive, thyristor 52 causes thyristor 54, and hence thyristor 53, are gated on at zero voltage. Capacitors 29, 26 now charge up, the charging of the capacitor 26 causing thransistors 55, 56 to assume such states that a capacitor 40 charges over a variable resistor 41. At a predetermined capacitor voltage, a device 42 breaks down to gate a pulse amplifier 38 whereby a pulse is produced in the primary winding 37a of a transformer 37, the associated pulse in the secondary winding 37b gating on a thyristor 43. A gating on pulse is then produced for the thyristor 35 whereupon the capacitor 29 discharges and charges in an oscillatory manner at a frequency determined by the parameters of the capacitor 29 and the inductor 30 whereby to energize the induction heating coil 31 at a value determined by the adjustable inductor 34. More than one coil 31 connected in series or in parallel may be energized. In order to eliminate interference with other electrical apparatus all the circuit elements with the exception of the induction heating coil 31 are housed in metal housing 58, 59, one inside the other and insulated from one another by members 61, the electrical connections through the inner housing 58 being provided with condenser bushings 60. The induction heating coil 31 is supported by means of a glass plate 57 at a predetermined distance therefrom and the upper surface of the plate 57 may be provided with an earthed metal foil member whereby the cooking utensil standing on the plate is earthed.

5. 发明专利

AU7773275A PAN DETECTOR FOR INDUCTION HEATING APPARATUS 未知
公开(公告)号：AU7773275A
公开(公告)日：1976-08-05
申请号：AU7773275
申请日：1975-01-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOBAYASHI TAKAO , AMAGAMI KEIZO , MIZUKAWA TAKUMI , TOYOOKA TADAO
IPC分类号： H05B6/12 , H02M7/515 , H05B3/68 , H05B6/06 , H05B1/02 , F24C7/00 , F24C7/08 , H05B5/02 , H05B5/08

6. 发明专利

DE2504827A1 未知
公开(公告)号：DE2504827A1
公开(公告)日：1975-08-14
申请号：DE2504827
申请日：1975-02-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOBAYASHI TAKAO , AMAGAMI KEIZO , MIZUKAWA TAKUMI , TOYOOKA TADAO
IPC分类号： H05B6/12 , H02M7/515 , H05B3/68 , H05B6/06 , H05B5/04

7. 发明专利

CA1149883A CIRCUIT FOR DETECTING A UTENSIL LOAD PLACED ASYMMETRICALLY RELATIVE TO AN INDUCTION HEATING COIL 未知
公开(公告)号：CA1149883A
公开(公告)日：1983-07-12
申请号：CA357287
申请日：1980-07-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MIZUKAWA TAKUMI , AMAGAMI KEIZO , KOBAYASHI TAKAO
IPC分类号： H05B6/06 , H05B6/12 , G01S15/00
摘要： A plurality of magnetic field sensors are mounted adjacent the periphery of an induction heating coil of flat, spiral configuration which is energized by ultrasonic frequency energy to generate a time-varying magnetic field. The magnetic field sensors are connected in a circuit to produce an output signal when a magnetic utensil load is placed asymmetrically with respect to the center of the induction heating coil. In response to sensor output signal exceeding a predetermined value, a warning indication is provided. The ultrasonic energy level is reduced in response to the warning indication to minimize radio interference which would otherwise occur due to leakage magnetic flux.

8. 发明专利

CA1128140A THYRISTOR OFF-TIME CONTROLLED INDUCTION HEATING APPARATUS BY DIFFERENTIATED THYRISTOR ANODE POTENTIAL 未知
公开(公告)号：CA1128140A
公开(公告)日：1982-07-20
申请号：CA336052
申请日：1979-09-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOMINAMI HIDEYUKI , OGINO YOSHIO , MIZUKAWA TAKUMI , KOBAYASHI TAKAO
IPC分类号： H05B6/12 , H02M7/523 , H05B6/06
摘要： An induction heating apparatus including a thyristor adapted to receive power from a power source, a gating control circuit for generating gating pulses for application to the gating control terminal of the thyristor, a commutating circuit which commutates off the thyristor, and a differentiator connected across the anode and cathode terminals of the thyristor to detect the power consumption of an inductively heated cooking ware. The gating control circuit comprises a gating pulse generator and a smoothing circuit for filtering the signal from the differentiator into a d-c signal which is compared with a reference level to detect the deviation of the power consumption from the reference value. The gating pulse generator is responsive to a potential at the anode of the thyristor to initiate timing action to determine the interpulse period or turn-off time of the thyristor and also responsive to the deviation of power consumption to vary the interpulse period.

9. 发明专利

AU521875B2 INDUCTION HEATING 未知
公开(公告)号：AU521875B2
公开(公告)日：1982-05-06
申请号：AU6074480
申请日：1980-07-24
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MIZUKAWA TAKUMI , AMAGAMI KEIZO , KOBAYASHI TAKAO
IPC分类号： H05B6/06 , H05B6/12 , G08B21/00

10. 发明专利

DE2937941A1 未知
公开(公告)号：DE2937941A1
公开(公告)日：1980-03-27
申请号：DE2937941
申请日：1979-09-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOMINAMI HIDEYUKI , OGINO YOSHIO , MIZUKAWA TAKUMI , KOBAYASHI TAKAO
IPC分类号： H05B6/12 , H02M7/523 , H05B6/06 , H05B5/04
摘要： An induction heating apparatus including a thyristor adapted to receive power from a power source, a gating control circuit for generating gating pulses for application to the gating control terminal of the thyristor, a commutating circuit which commutates off the thyristor, and a differentiator connected across the anode and cathode terminals of the thyristor to detect the power consumption of an inductively heated cooking ware. The gating control circuit comprises a gating pulse generator and a smoothing circuit for filtering the signal from the differentiator into a d-c signal which is compared with a reference level to detect the deviation of the power consumption from the reference value. The gating pulse generator is responsive to a potential at the anode of the thyristor to initiate timing action to determine the interpulse period or turn-off time of the thyristor and also responsive to the deviation of power consumption to vary the interpulse period.

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