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1. 发明专利

JP2005030714A HEATER 审中-公开
公开(公告)号：JP2005030714A
公开(公告)日：2005-02-03
申请号：JP2003272336
申请日：2003-07-09
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SAKAMOTO KAZUHO , TAKIZAKI TAKESHI , NOBUE TOMOTAKA , MATSUDA MASATO
IPC分类号： F24C7/02 , F24C7/06
摘要： PROBLEM TO BE SOLVED: To provide a heater that can perform uniform and efficient heating. SOLUTION: The heater is provided with a heating chamber 3, a table 4 disposed in the heating chamber 3 to carry an object to be heated, and a heating unit 5 having a planar heater 50 disposed in the heating chamber 3. The planar heater 50 is designed to be adjustable in distance to the object to be heated as maintaining a parallel relation to the table 4. COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP2004335304A High frequency heating device 审中-公开
标题翻译：高频加热装置
公开(公告)号：JP2004335304A
公开(公告)日：2004-11-25
申请号：JP2003130370
申请日：2003-05-08
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： MIHARA MAKOTO , SAKAMOTO KAZUHO , NOBUE TOMOTAKA , TAKIZAKI TAKESHI
IPC分类号： H05B6/66 , H05B6/64 , H05B6/70 , H05B6/72
摘要： PROBLEM TO BE SOLVED: To provide a space saving high frequency heating device capable of uniformly heating without a difference of electric field strength between the center and the corner of a heating chamber.
SOLUTION: The high frequency heating device comprises a high frequency generating part, a heating chamber composed of a ceiling, side walls, and the bottom, heating an object to be heated by supplying the high frequency from the high frequency generating part. Almost the whole part of a back side is formed into a wave guide structure guiding the high frequency generated at the high frequency generating part, and a number of power supply ports, through each of which the high frequency passes and is led into the heating chamber, are formed on almost the whole surface of the bottom. The frequency supplied from the high frequency generating part is 5.8 GHz.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够均匀加热而节省空间的高频加热装置，而不会在加热室的中心和拐角之间产生电场强度的差异。解决方案：高频加热装置包括高频产生部分，由天花板，侧壁和底部组成的加热室，通过从高频产生部分提供高频来加热被加热物体。几乎整个背面的整个部分形成为引导在高频产生部分产生的高频的波导结构，以及多个电源端口，每个高频通过，并被引入加热室形成在底部的几乎整个表面上。从高频发生部提供的频率为5.8GHz。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2003115371A MICROWAVE GENERATING EQUIPMENT 审中-公开
公开(公告)号：JP2003115371A
公开(公告)日：2003-04-18
申请号：JP2001309610
申请日：2001-10-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SAKAMOTO KAZUHO
IPC分类号： H05B6/68
摘要： PROBLEM TO BE SOLVED: To drive two or more magnetrons simultaneously with one high-voltage power supply. SOLUTION: By providing an operating characteristic variable type magnetron 2, which can change the operating characteristic by a standard magnetron 1 and an operating characteristic variable means 2-1, the anode current detection means 5 and 6 of each magnetrons, and the operating characteristic variable control means to compare the output signal of each the anode current detection means 5 and 6, and to control the operating characteristic variable means (coil for magnetic field adjustment) 2-1 based on this result, two or more magnetrons can be driven steady with sufficient balance.

4. 发明专利

JP2002051559A INVERTER POWER SOURCE UNIT 审中-公开
公开(公告)号：JP2002051559A
公开(公告)日：2002-02-15
申请号：JP2001233247
申请日：2001-08-01
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SAKAMOTO KAZUHO , TAKESHITA SHIRO , SUENAGA HARUO , BETSUSOU DAISUKE , NAKABAYASHI YUJI , SHIBUYA MAKOTO , ISHIO YOSHIAKI
IPC分类号： H05K7/20 , H02M3/28
摘要： PROBLEM TO BE SOLVED: To reduce noise by improving cooling efficiency of a main heat generating component like a semiconductor switching element and reducing the amount of cooling wind. SOLUTION: A magnetron 4, an inverter power source 3 wherein electric element components such as a semiconductor switching element 12 and a step-up transformer 21 are arranged on a main printed board 2, a cooling fan 5 having an impeller 9 of a centrifugal type, and a diaphragm 18 which isolates fluidly an intake vent 16 of the cooling fan 5 from a discharge vent in the outside of the cooling fan 5, are installed in a case having a plurality of sucking holes and exhausting holes. One end surface of the cooling fan 5 is made the main printed board 2, the impeller 9 is positioned above the main printed board 2, and a scroll-shaped cooling plate 14 whose section has a discontinuous part 13 partially is constituted on the periphery of the impeller 9. The semiconductor switching element 12 is arranged at least on one side out of the outer surface and the inner surface of a side surface of the cooling plate 14, and a fin part 15 is arranged in order to obtain an area of heat-transfer surface.

5. 发明专利

JP2001304564A HIGH FREQUENCY HEATING DEVICE 失效
公开(公告)号：JP2001304564A
公开(公告)日：2001-10-31
申请号：JP2000114786
申请日：2000-04-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： WATANABE KENJI , SAKAMOTO KAZUHO , FUJISHITA KAZUO , YAMAZAKI TAKAHIKO
IPC分类号： H05B6/68 , F24C7/02 , H05B6/64
摘要： PROBLEM TO BE SOLVED: To provide a high frequency heating device for use in heating a heated item such as a food in which a finished temperature of the food can be made uniform by its simple constitution. SOLUTION: A distribution of temperature of a heated item 1 placed on a food mounting table 28 which can be driven to rotate is detected through a plurality of openings of a heating chamber 8 under an application of an infrared ray sensor 13 having a plurality of infrared ray sensor elements and a lens 19 having a plurality of lens functions and then a high temperature position and a low temperature position can be acknowledged.

6. 发明专利

JP2000058252A HIGH FREQUENCY HEATING DEVICE 失效
公开(公告)号：JP2000058252A
公开(公告)日：2000-02-25
申请号：JP22297798
申请日：1998-08-06
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： BETSUSOU 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 , H05B6/68
摘要： PROBLEM TO BE SOLVED: To reduce the breakdown voltage and enhance control capability of a semiconductor switching device in a power conversion device for magnetron driving of a high frequency heating device. SOLUTION: This high frequency heating device is constituted with a DC power source 1, a leakage transformer 2 connected to the DC power source 1, a second capacitor 5 connected in series to the primary winding 3 of the leakage transformer 2, a first capacitor 4, a second semiconductor switching device 7 connected to the DC power source 1, a first semiconductor switching device 6 connected in series to the second semiconductor switching device 7, a drive means for driving the first semiconductor switching device 6 and the second semiconductor switching device 7, a rectifying means 10 connected to the secondary winding of the leakage transformer 2, and a magnetron 11 connected to the rectifier means 10.

7. 发明专利

JP2000057957A NOISE FILTER 失效
公开(公告)号：JP2000057957A
公开(公告)日：2000-02-25
申请号：JP22136798
申请日：1998-08-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SAKAMOTO KAZUHO , TAKIZAKI TAKESHI , KODAMA SATOSHI , YONEZAWA KENJI , SASAKI HIROSHI
IPC分类号： H01J23/15
摘要： PROBLEM TO BE SOLVED: To effectively shield the radiation noise from a magnetron of a microwave oven by providing two stages of noise filter circuits, and shielding the noise filter with a metal shield case. SOLUTION: A magnetron main body 11 is provided with a shield case 1 at an input side thereof, and a through capacitor 3 is fixed to one side wall of the shield case 1, and connected to an input terminal 6 through a connecting lead wire 7 so as to form a noise filter circuit with a choke coil 2. A high voltage capacitor 5 and a connecting lead wire 7 forming a second noise filter are shielded by a second shield case 4, and the shield cases 1, 4 are tightly bonded to each other without generating a clearance. With this structure where two stages of the noise filter circuits are continuously connected to each other, the noise lowering effect is improved, and the filter member of each stage is shielded, and furthermore, noise radiation shielding effect in relation to the outside can be remarkably improved.

8. 发明专利

JPH10233282A HIGH-FREQUENCY INDUCTION HEATING DEVICE FITTED WITH ELECTRIC HEATING 失效
公开(公告)号：JPH10233282A
公开(公告)日：1998-09-02
申请号：JP3457497
申请日：1997-02-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SUGIMORI TORU , MORI YASUHISA , SAKAMOTO KAZUHO , EBISAWA MITSUO
IPC分类号： H05B3/20 , H05B11/00
摘要： PROBLEM TO BE SOLVED: To secure a heat insulating property while to improve work environment. SOLUTION: As heating bodies of a high-frequency induction heating device fitted with electric heating, a substrate 3 having an insulating property is used which has a calcium silicate material disposed on an upper surface part thereof and further has a plurality of lengthwise and crosswise slit-like grooves provided on a lower surface thereof, and a heater 2 is covered with an insulating material 1 whereby insulation performance of the heater 2 is secured while a heat insulating property thereof is secured. With this, if it attaches to human skin during work, no itch is produced whereby work environment and assembling facility are improved.

9. 发明专利

JPH10233281A HIGH FREQUENCY HEATING DEVICE WITH ELECTRIC HEATER 失效
公开(公告)号：JPH10233281A
公开(公告)日：1998-09-02
申请号：JP3457397
申请日：1997-02-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SUGIMORI TORU , MORI YASUHISA , SAKAMOTO KAZUHO , EBISAWA MITSUO
IPC分类号： H05B3/20 , H05B11/00
摘要： PROBLEM TO BE SOLVED: To facilitate assembly for cost reduction, and prevent itching caused by glass fiber from adhering to a human skin because it is not included in a substrate, by forming a heater for heating food stored in a heat chamber so that a metallic cover is formed on its lower surface side, and a heater formed at the upper surfaces of respective insulated substrates divided into a plurality of pieces may be covered with an insulating body. SOLUTION: An upper heater and a lower heater which are disposed at the wall surface of the upper part and lower part of a heat chamber are formed by a heater 2 at the upper surface of an insulated substrate 3 which is retained by a metal cover 4 and are divided into a plurality of pieces, being covered with an insulating material 1. The insulated substrate 3 consisting of calcium silicate of a material which is not flexible so as to be capable of being split easily with bending stress from the outside, is formed by dividing previously a part which is presumed to be split at the time of thermal deformation due to heating, and the heater 2 is disposed at a position with no concern is required about insulation. It is thus possible to secure insulating performance and heat insulating performance of the heater 2, simplify its assembly, and improve working environment.

10. 发明专利

JPH10215135A TERMINAL NOISE FILTER FOR INVERTER POWER USING UNIT 失效
公开(公告)号：JPH10215135A
公开(公告)日：1998-08-11
申请号：JP1494897
申请日：1997-01-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SAKAMOTO KAZUHO , ISHIO YOSHIAKI
IPC分类号： H03H7/09
摘要： PROBLEM TO BE SOLVED: To reduce terminal noise without enlarging dimension by connecting resonance capacitors to a common file filter coil in parallel. SOLUTION: Commercial power is inputted from input terminals 8 and 9 and power passing through a terminal noise filter is supplied from output terminals 10 and 11. The coils of respective lines are wound to the same circular core and the common mode filter coil 1 operates as dielectric reactance on common mode noise generated between the lines and ground and it inhibits the leakage of noise to an outer part. The resonance capacitors 2 and 3 are connected to both ends of the lines of the common mode filter coil 11 in parallel. The correlation of inductance L and resonance capacitor capacity C in the common mode filter 1 is set to be that as shown in an expression and a frequency (f) is set to be one to five times as much as the operation frequency of an inverter. When L and C are decided for the frequency to be inhibited, noise can efficiently be removed without the need of large L.

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