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81. 发明专利

AU753821B2 High frequency heating apparatus 未知
公开(公告)号：AU753821B2
公开(公告)日：2002-10-31
申请号：AU4933699
申请日：1999-08-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： BESSYO DAISUKE , YASUI KENJI , SAKAMOTO KAZUHO , MIHARA MAKOTO , SAKAI SHINICHI , SUENAGA HARUO , ISHIO YOSHIAKI , MORIYA HIDEAKI , NAGATA HIDETOMO , OMORI HIDEKI
IPC分类号： H05B6/66 , H05K1/02 , H05K1/18
摘要： A high frequency heating apparatus including a circuit for driving a magnetron. A circuit comprises a leakage transformer, a second capacitor connected in series to primary coil of said leakage transformer, a second switching device connected in parallel with a series circuit of said primary coil and second capacitor, a first capacitor connected in parallel with said second switching device, and a first switching device connected in series to said second switching device. Under a structure of the present invention, the switching device and the leakage transformer, both being the key components of the circuit, may respectively be used in common either on a circuit of 200V-240V commercial power supply or on a circuit of 100V-120V commercial power supply. This enables volume production of the key components, which leads to a benefit of reduced cost of the components as well as the cost of heating apparatus.

82. 发明专利

HK1025461A1 High frequency heating equipment. 未知
公开(公告)号：HK1025461A1
公开(公告)日：2000-11-10
申请号：HK00104636
申请日：2000-07-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： BESSYO DAISUKE , YASUI KENJI , ISHIO YOSHIAKI , SUENAGA HARUO , OMORI HIDEKI , MIHARA MAKOTO , SAKAMOTO KAZUHO
IPC分类号： H02M3/335 , H02M7/537 , H05B6/66 , H02M , H05B
摘要： A switching device is employed in a power supply for driving a magnetron with lower withstand voltage and better controllability. A high frequency heating apparatus comprises a power supply, a leakage transformer connected to the power supply, a first switching device connected in series to a primary coil side of the leakage transformer, a first capacitor, a series circuit of a second capacitor and a second switching device, a driving circuit having an oscillator for driving the first switching device and the second switching device, a rectifier connected to a secondary coil side of the leakage transformer, and a magnetron connected to the rectifier. With this configuration, voltage applied to the first switching device can be clamped, and at the same time, the OFF time can be freely adjustable by the effect of the second capacitor and the second semiconductor switching device.

83. 发明专利

AU4933699A High frequency heating apparatus 未知
公开(公告)号：AU4933699A
公开(公告)日：2000-02-28
申请号：AU4933699
申请日：1999-08-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： BESSHO DAISUKE , YASUI KENJI , SAKAMOTO KAZUHO , MIHARA MAKOTO , SAKAI SHINICHI , SUENAGA HARUO , ISHIO YOSHIAKI , MORIYA HIDEAKI , NAGATA HIDETOMO , OMORI HIDEKI
IPC分类号： H05B6/66 , H05K1/02 , H05K1/18
摘要： A high frequency heating apparatus including a circuit for driving a magnetron. A circuit comprises a leakage transformer, a second capacitor connected in series to primary coil of said leakage transformer, a second switching device connected in parallel with a series circuit of said primary coil and second capacitor, a first capacitor connected in parallel with said second switching device, and a first switching device connected in series to said second switching device. Under a structure of the present invention, the switching device and the leakage transformer, both being the key components of the circuit, may respectively be used in common either on a circuit of 200V-240V commercial power supply or on a circuit of 100V-120V commercial power supply. This enables volume production of the key components, which leads to a benefit of reduced cost of the components as well as the cost of heating apparatus.

84. 发明专利

DE68915662D1 未知
公开(公告)号：DE68915662D1
公开(公告)日：1994-07-07
申请号：DE68915662
申请日：1989-08-09
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： UEDA SHIGEKI , MIHARA MAKOTO , INOUE MASANOBU , OHJI KENZO
IPC分类号： H05B6/68 , F24C7/08 , G01G19/52
摘要： There is disclosed herein an automatic heating appliance for controlling heating of an object in response to operation of instruction keys and on the basis of the weight of an object to be heated. The appliance includes therein a heating chamber (7) for housing the object, a heater (10) provided on or in the heating chamber (7) for heating the object (9) placed therein, and a turntable (8) provided in the heating chamber (7) for keeping thereon the object (9) during heating. Also included in the appliance are a weight detector (15) for obtaining first weight data in response to the object (9) being placed on the turntable (8) and a temperature compensator (16) for obtaining a second weight data in response to the object (9) being placed thereon, the temperature compensator (16) substantially having the same temperature characteristic as the weight detector (15). A control unit (6) of the appliance is responsive to the first and second weight data in order to remove an error component due to variation of the characteristic of the weight detector (15) by variation of temperature in accordance with the result of comparison between the first and second weight data so as to determine a weight resulting from only the object (9). The control unit (6) controls the heating of the object (9) in accordance with variation of the determined object weight.

85. 发明专利

GB2267804A Cooling arrangement for a microwave heating device 未知
公开(公告)号：GB2267804A
公开(公告)日：1993-12-15
申请号：GB9311244
申请日：1993-06-01
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： UMEKAGE YASUHIRO , SAKAI SHINICHI , WATANABE YOSHIAKI , MORIKAWA HISASHI , MIHARA MAKOTO
IPC分类号： H05B6/80 , F24C7/02
摘要： A propeller fan (13) and parts of a high frequency power supply unit (12) (e.g. a power control semiconductor device (23), a high voltage transformer (25)) are arranged along the direction of flow of air from the propeller fan. The motor support member (35) which shield the motor from moisture is formed by a motor cover (34) attached to the fan casing (17). First and second mounting frames (43, 44) are connected at portion (45) for bending into an L shape, the airflow path-being defined by first and second guide walls (16, 46). A communicating hole (49) is provided to permit cooling of electronic components 47. The propeller fan is so arranged as to continue to revolve slowly after stopping the microwave heating.

86. 发明专利

DE3877640T2 未知
公开(公告)号：DE3877640T2
公开(公告)日：1993-08-19
申请号：DE3877640
申请日：1988-07-09
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MIHARA MAKOTO , INOUE MASANOBU , OHJI KENZO , ITOU SHUJI
IPC分类号： G01G19/52 , G01G3/08 , G01G7/06 , G01G19/56 , G01G21/23 , G01G21/30 , G01G23/02 , H05B6/80
摘要： An automatic weight detecting device provided with a platform on which an object to be measured is placed, a supporting shaft for supporting the platform and which is rotatable and smoothly movable in the supporting direction, a driving means for rotating the supporting shaft, an elastic member for supporting the supporting shaft, a load detecting means which converts the load of the object to be transmitted in the supporting direction of the rotatable supporting shaft through the elastic member into a given electrically physical amount, and a weight detecting circuit which integrates to obtain the average of the electrically physical amount while rotating, so that the weight of the object is detected.

87. 发明专利

DE3673063D1 未知
公开(公告)号：DE3673063D1
公开(公告)日：1990-09-06
申请号：DE3673063
申请日：1986-05-13
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MAEHARA NAOYOSHI , MATSUMOTO TAKAHIRO , KUSUNOKI SHIGERU , SAKAMOTO KAZUHO , MIHARA MAKOTO
IPC分类号： H02M3/335 , H02M7/48 , H05B6/66 , H02M7/02 , H01J23/34 , H05G1/10
摘要： A power feed apparatus in which a means for by-passing the current reversely biasing the load is used for the normally used rectification means when the power converted by the transformer is fed to the reversely blocking characteristics like magnetron, whereby the price is lower and the shape is more compact without the use of the rectifier, because of the combination construction of the reverse bias current by-pass means and the inductance element provided in the load current path with respect to the non-linear load like the magnetron.

88. 发明专利

AU4084789A AUTOMATIC HEATING APPLIANCE WITH WEIGHT SENSOR 未知
公开(公告)号：AU4084789A
公开(公告)日：1990-03-08
申请号：AU4084789
申请日：1989-08-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： UEDA SHIGEKI , MIHARA MAKOTO , INOUE MASANOBU , OHJI KENZO
IPC分类号： H05B6/68 , G01G3/00 , F24C7/08
摘要： There is disclosed herein an automatic heating appliance for controlling heating of an object in response to operation of instruction keys and on the basis of the weight of an object to be heated. The appliance includes therein a heating chamber (7) for housing the object, a heater (10) provided on or in the heating chamber (7) for heating the object (9) placed therein, and a turntable (8) provided in the heating chamber (7) for keeping thereon the object (9) during heating. Also included in the appliance are a weight detector (15) for obtaining first weight data in response to the object (9) being placed on the turntable (8) and a temperature compensator (16) for obtaining a second weight data in response to the object (9) being placed thereon, the temperature compensator (16) substantially having the same temperature characteristic as the weight detector (15). A control unit (6) of the appliance is responsive to the first and second weight data in order to remove an error component due to variation of the characteristic of the weight detector (15) by variation of temperature in accordance with the result of comparison between the first and second weight data so as to determine a weight resulting from only the object (9). The control unit (6) controls the heating of the object (9) in accordance with variation of the determined object weight.

89. 发明专利

AU589056B2 COOKING APPARATUS WITH SENSOR TO DETECT WEIGHT VARIATION 未知
公开(公告)号：AU589056B2
公开(公告)日：1989-09-28
申请号：AU1031388
申请日：1988-01-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OHJI KENZO , ITOU SHUJI , SAKAMOTO KAZUHO , MIHARA MAKOTO
IPC分类号： F24C7/08 , H05B6/68 , F24C7/02 , G01G19/413 , G01G19/52
摘要： A heat cooking apparatus which is arranged to accurately detect minor weight variation of a food article by detecting the weight of the food article placed on a turntable in synchronization with the position of the turntable or its rotational cycle, so as to control the heat cooking by such weight variation.

90. 发明专利

AU2994489A WEIGHT DETECTING APPARATUS 未知
公开(公告)号：AU2994489A
公开(公告)日：1989-05-25
申请号：AU2994489
申请日：1989-02-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SAKAMOTO KAZUHO , MIHARA MAKOTO , OHJI KENZO , ITOU SHUJI
IPC分类号： G01G3/02 , G01G3/00 , G01G3/12 , G01G7/06 , G01G19/56 , G01G21/24 , G01G21/30 , G01L1/14 , H05B6/68 , H05B6/80 , G01G23/02
摘要： A device comprises a shaft (22), a stopper (23), a protective spring plate (24), a pressuring member (16), a sensor bed (17), a pressure sensor (15), a sensor cover (25) and a base (26). The pressure sensor (15) consists of a pair of flat elastic plates (18a,18b) of an electrically insulating material with printed electrodes (19), which are stuck together with a spacer of 40-60 microns (20). When a load is applied via the shaft (22), the upper plate (18a) of the sensor is deformed whilst the lower plate (18b) keeps its former shape. The resultant change in the gap between the plates is detected in terms of a capacitance variation between the electrodes.

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