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71. 发明专利

JP2002270359A SWITCHING POWER SUPPLY FOR HIGH FREQUENCY HEATING EQUIPMENT 失效
公开(公告)号：JP2002270359A
公开(公告)日：2002-09-20
申请号：JP2001069966
申请日：2001-03-13
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORIKAWA HISASHI
IPC分类号： H05B6/04 , H05B6/64 , H05B6/66 , H05K7/20
摘要： PROBLEM TO BE SOLVED: To make the junction temperature of a semiconductor switching- element below the tolerable temperature for reliability, cheaply, in a switching power supply for high frequency heating equipment. SOLUTION: By constituting an attachment position to a heat radiating fin 9 of a rectifier 2 so that the outside of a rectifier 2 package may project outside from the heat radiating fin 9, a contacting face area of the rectifier 2 and the heat radiating fin 9 decreases, and the quantity of heat conducted from the rectifier 2 to semiconductor switching elements 3 and 4 decreases. Therefore, by using the expensive semiconductor switching element of small loss, or without using many heat radiating fins, the junction temperature of the semiconductor switching elements 3 and 4 can be made below the tolerable temperature for reliability, and can constitute it at a low cost using the one heat radiating fin 9.

72. 发明专利

JPH11351584A HEATING COOKER 失效
公开(公告)号：JPH11351584A
公开(公告)日：1999-12-24
申请号：JP15554298
申请日：1998-06-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORIKAWA HISASHI , ORITA MASATOMO , YAMAGUCHI MASAAKI , NAKAJIMA AKIHIKO
IPC分类号： F24C7/04 , F24C7/06
摘要： PROBLEM TO BE SOLVED: To shorten the cooking time of a heating cooker by increasing the effect of radiant heat by controlling the temperature in a heating chamber by means of a blower by maintaining a heater in a turned-on state by discharging the overheated air in a heating chamber to the outside by means of the blower and controlling the discharge of the overheated air by means of a temperature regulator. SOLUTION: Air vent holes 7 are made through one side wall of a heating chamber 1 and the air in the chamber 1 is discharged to the outside of a heating cooking chamber through air vent holes 10 made through an outer plate 9. Therefore, the temperature in the heating chamber 1 can be controlled by controlling a blow 8 by means of a temperature regulator 6 during heating cooking, because the temperature in the chamber 1 drops even when an upper heater 2 and a lower heater 3 are continuously energized. Consequently, when the hot air in the cooking chamber is not discharged to the outside by means of the blower 8, the energizing rates of the heaters 2 and 3 become 100% and a high radiant heat state can be maintained. Therefore, the cooking time of a heating cooker can be shortened.

73. 发明专利

JPH11101441A HEATING COOKER 失效
公开(公告)号：JPH11101441A
公开(公告)日：1999-04-13
申请号：JP26577697
申请日：1997-09-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJISHITA KAZUO , KANEKO YASUNORI , MORIKAWA HISASHI
IPC分类号： H05B3/00 , F24C7/04 , H05B3/68
摘要： PROBLEM TO BE SOLVED: To protect a baby and a child from getting a burn upon touching a heat resistant glass when the temperature thereof is very, high immediately after heating is completed. SOLUTION: In case heating is stopped after heating an object to be heated and the object removed, a heating cooker comprises a sound 30 or a lamp for alerting a state wherein a heat resistant glass 2 exceeds a specified temperature, and a temperature detecting means 5 as a means for judging the presence of the object to be heated. According to this arrangement, it is possible to prevent an accidental burn while the user of the heating cooker leaves the same and to caution a baby and the like from approaching the heating cooker. In addition, the temperature measuring means 5 offers a high accuracy because it directly measures a temperature of the heat resistant glass 2. The temperature measuring means 5 can also be used as a means for controlling the temperature of the interior of the object to be heated.

74. 发明专利

JPH1183029A HALOGEN COOKING APPLILANCE 失效
公开(公告)号：JPH1183029A
公开(公告)日：1999-03-26
申请号：JP24640097
申请日：1997-09-11
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KANEKO YASUNORI , FUJISHITA KAZUO , MORIKAWA HISASHI
IPC分类号： F24C7/04
摘要： PROBLEM TO BE SOLVED: To eliminate limits in a cooking range and a menu due to adherence of dirt or stuck by heat by constituting to sense temperature of a heat resisting glass surface by a temperature sensor contained in a cooking appliance, and to control it at available temperature of a coating layer. SOLUTION: When a halogen lamp 10 of the halogen cooking appliance is energized, heat of high temperature is generated via a quartz tube. Thus, temperature of heat resisting glass is gradually raised, and hence temperature of fluorine coating layer 16 on a surface of the glass is raised as well. A temperature sensor 14 senses temperature of a heating zone part of the glass and controls so as not to become predetermined temperature or higher. Thus, there is no fear of deteriorating a fluorine film by the heat, and adherence of dirt or stuck to the glass surface is stably prevented. Hence, long clean heating surface can be ensured. As a result, a problem due to the dirt of the glass does not occur. A cooking range and a menu of the halogen cooking appliance can be enlarged to a great extent.

75. 发明专利

JPH10153321A HALOGEN COOKING STOVE 失效
公开(公告)号：JPH10153321A
公开(公告)日：1998-06-09
申请号：JP25451197
申请日：1997-09-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KANEKO YASUNORI , FUJISHITA KAZUO , MORIKAWA HISASHI
IPC分类号： H05B3/74 , F24C7/04
摘要： PROBLEM TO BE SOLVED: To provide a halogen cooking stove having a halogen lamp of a flat heating face as a heating source in which stain is prevented from adhering to a glass surface, a temperature of the glass surface can be confirmed visually, a human hand is kept off from touching a high temperature section and further a certain object is not placed on the high temperature section. SOLUTION: A fluorine coating layer 14 is formed in a non-heating zone 9b of a top glass surface so as to prevent stain from adhering to the surface, the stain may easily be wiped off and a label-like temperature indicating material of which color is changed in response to an increased temperature is adhered to a non-heating zone 9b coated with fluorine and then temperature rise is indicated by change of color.

76. 发明专利

JPH1047692A HEATING COOKER 失效
公开(公告)号：JPH1047692A
公开(公告)日：1998-02-20
申请号：JP20815296
申请日：1996-08-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJISHITA KAZUO , KANEKO YASUNORI , MORIKAWA HISASHI , ISHIGURO TOSHIYUKI
IPC分类号： H05B3/00 , F24C7/04
摘要： PROBLEM TO BE SOLVED: To detect and control a temperature of a material to be heated via heat-resisting glass by forming a cooking stove of a member having high infrared ray reflectivity without using a heat insulator, incorporating a temperature sensor therein and bringing the sensor into direct contact with a lower surface of the glass. SOLUTION: A cooking stove 3 is formed of an aluminum material. A temperature sensor 5 is incorporated, and brought into direct contact with a lower surface of heat-resisting glass 2 to detect and control a temperature of oil of a material to be heated via the glass 2. The stove 3 can be manufactured with high accuracy due to the aluminum material and with a simple constitution of a low cost. At the time of heating oil, when it arrives at a temperature previously input to and stored in a controller, a heating means is automatically stopped to prevent firing of the oil at the time of heating the oil.

77. 发明专利

JPH1047691A HEATING COOKER 失效
公开(公告)号：JPH1047691A
公开(公告)日：1998-02-20
申请号：JP20565396
申请日：1996-08-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJISHITA KAZUO , KANEKO YASUNORI , MORIKAWA HISASHI
IPC分类号： H05B3/68 , F24C7/04 , F24C7/08
摘要： PROBLEM TO BE SOLVED: To eliminate contact of an infant' or child's hand with heat-resisting glass when a material to be heated on the glass is removed after heating. SOLUTION: This cooker comprises heat-resisting glass 5 for placing a material 18 to be heated, and a heating means for heating the material 18 via the glass 5 provided at a lower part of the glass 5. In this case, in the case that a heating stopping operation of an operating unit 13 is conducted after heating and the material 18 is removed and when the glass 5 exceeds a predetermined temperature, it is warned by a sound to inform a high temperature of the glass 5. Carelessness at the time of separating from the heating cooker can be prevented, and it is noted that a child may not approach the cooker.

78. 发明专利

JPH08136327A WEIGHT CONVERSION METHOD AND HEATING COOKING UTENSIL USING THE METHOD 失效
公开(公告)号：JPH08136327A
公开(公告)日：1996-05-31
申请号：JP27364594
申请日：1994-11-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OCHI KENZO , FUJII YUKO , MORIKAWA HISASHI , YAMASHITA SEIICHI
IPC分类号： G01G3/00 , F24C7/02 , G01D3/00 , G01D3/02 , G01G19/52 , G01G23/01
摘要： PURPOSE: To accurately convert a wide load range with a single conversion expression by compensating the difference between a conversion load value which is calculated by a weight conversion expression consisting of a cubic expression and a reference load by the translation of the weight conversion expression consisting of the cubic expression. CONSTITUTION: Abscissa and ordinate indicate a characteristic value (electrostatic capacity ratio, R) and a load W, respectively. A square (square) mark indicates an actually measured value and a solid line 15 and a broken line 16 indicate the weight conversion expression of a cubic expression and that by a secondary expression, respectively. The solid line 15 indicating the weight conversion expression consisting of a cubic expression covers a wire load range from 0 to 5kg. In the case of the broken line 16 indicating the weight conversion expression consisting of a secondary expression, an error increases when a high load region of 3g or more when being matched to a low load region. Therefore, in this case, a weight conversion expression consisting of a secondary expression which is matched to a high load region is required. Therefore, by translating a preset reference load, for example, zero point so that it matches an actually measured value, a wide load range can be converted by one weight conversion expression.

79. 发明专利

JPH07190383A HIGH-FREQUENCY HEATING DEVICE 失效
公开(公告)号：JPH07190383A
公开(公告)日：1995-07-28
申请号：JP33289393
申请日：1993-12-27
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMASHITA SEIICHI , MORIKAWA HISASHI , OCHI KENZO , FUJII YUKO , SUGIMORI TORU
IPC分类号： H05B6/78 , F24C7/02 , H05B6/64
摘要： PURPOSE:To cover a weight measuring unit for a heated article of a high frequency heating device and simplify the construction of the weight measuring unit, thereby facilitating an automatic assembling operation. CONSTITUTION:A power point 15, which is the center between a lever board 6 and a contact shaft 5 and a working point 14 of a pressure button 10 which is the center of a gravity sensor device 13 are deviated where a claw of the lever board 6 is inserted into a hole bored in a gravity sensor frame 4, thereby forming a weight sensor unit in simple structure where a turning fulcrum is installed.

80. 发明专利

JPH05335069A 失效
公开(公告)号：JPH05335069A
公开(公告)日：1993-12-17
申请号：JP13956392
申请日：1992-06-01
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： UMEKAGE YASUHIRO , SAKAI SHINICHI , WATANABE YOSHIAKI , MORIKAWA HISASHI
IPC分类号： F24C7/02 , H05B6/64 , H05B6/68
摘要： PURPOSE:To make compatible both the cooling capability and the noise reducing capability in a high-frequency oscillation device of a high-frequency heating device for cooking a food by heating. CONSTITUTION:A blower 17 for cooling a high-frequency oscillation device 15, and a control device 18 for controlling the device 15 and blower 17 are provided, and the blower 17 is so constituted as to be capable of rotation at the predetermined speed, independent of a difference in power frequency. As a result, the blower 17 capable of rotation at the predetermined speed independent of a difference in power frequency is operated at such a minimum speed as capable of cooling the components of the device 15, thereby realizing compatibility between component cooling capability and noise reducing capability, regardless of a power frequency.

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