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1. 发明授权

US4396818A Thyristor off-time controlled induction heating apparatus by differentiated thyristor anode potential 失效
标题翻译：晶闸管关断时间控制感应加热装置通过差分晶闸管阳极电位
公开(公告)号：US4396818A
公开(公告)日：1983-08-02
申请号：US273415
申请日：1981-06-15
申请人： Hideyuki Kominami , Yoshio Ogino , Takumi Mizukawa , Takao Kobayashi
发明人： Hideyuki Kominami , Yoshio Ogino , Takumi Mizukawa , Takao Kobayashi
IPC分类号： H05B6/12 , H02M7/523 , H05B6/06 , H05B6/08
CPC分类号： H05B6/062 , H02M7/523
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.
摘要翻译：一种感应加热装置，包括适于从电源接收功率的晶闸管，用于产生选通脉冲以用于施加到晶闸管的选通控制端的选通脉冲的选通控制电路，将晶闸管整流的换向电路，以及跨越晶闸管的微分器晶闸管的阳极和阴极端子，以检测感应加热烹饪器具的功耗。选通控制电路包括门控脉冲发生器和平滑电路，用于将来自微分器的信号滤波成与参考电平进行比较的d-c信号，以检测功耗与参考值的偏差。门控脉冲发生器响应于晶闸管的阳极处的电位以启动定时动作以确定晶闸管的脉冲间期或关断时间，并且还响应功率消耗的偏差来改变脉冲间隔。

2. 发明授权

US4074101A Induction heating apparatus using a pair of inversely parallel connected gate-controlled switching devices 失效
标题翻译：感应加热装置使用一对逆并联的栅极控制开关装置
公开(公告)号：US4074101A
公开(公告)日：1978-02-14
申请号：US657307
申请日：1976-02-11
申请人： Mitsuyuki Kiuchi , Keizo Amagami , Takumi Mizukawa , Hideyuki Kominami
发明人： Mitsuyuki Kiuchi , Keizo Amagami , Takumi Mizukawa , Hideyuki Kominami
IPC分类号： H05B6/12 , H01F30/00 , H02M5/22 , H02M5/27 , H03B9/10 , H05B6/06 , H05B6/10 , H05B6/68 , H05B5/04
CPC分类号： H05B6/1209 , H02M5/22 , H02M5/27 , H03B9/10 , H05B6/062 , H05B6/6488 , Y02B40/123 , Y10S55/36
摘要： An induction heating apparatus comprising a pair of inversely parallel-connected gate-controlled switching devices connected to an alternating current source, a resonant circuit including an induction heating coil and a variable frequency gating circuit for firing the switching devices to generate oscillations through the conducting device and the induction heating coil. The switching devices are gated into conduction in succession in a first order during the positive half cycle of the alternating current and in a reversed order during the negative half cycle. A zero crosspoint detector is provided to inhibit gating when the source voltage is near zero crosspoint level and to control the gating frequency in accordance with the instantaneous value of the source voltage to increase the turn-off time of the switching devices for lower input source voltage.
摘要翻译：一种感应加热装置，包括连接到交流电源的一对逆并联的门控开关装置，包括感应加热线圈的谐振电路和用于点火开关装置以产生通过导电装置的振荡的可变频率选通电路和感应加热线圈。开关器件在交流电的正半周期期间以一级顺序被选通导通，并且在负半周期期间以相反的顺序被选通。提供零交叉点检测器以在源电压接近零交叉点电平时禁止门控，并根据源电压的瞬时值来控制门控频率，以增加用于较低输入电源电压的开关器件的关断时间。

3. 发明授权

US4356371A Small load detection by comparison between input and output parameters of an induction heat cooking apparatus 失效
标题翻译：通过比较感应加热烹饪设备的输入和输出参数来进行小负载检测
公开(公告)号：US4356371A
公开(公告)日：1982-10-26
申请号：US205861
申请日：1980-11-10
申请人： Mitsuyuki Kiuchi , Takumi Mizukawa , Hideyuki Kominami , Kenji Hattori
发明人： Mitsuyuki Kiuchi , Takumi Mizukawa , Hideyuki Kominami , Kenji Hattori
IPC分类号： H05B6/06 , H05B6/08 , H05B6/12
CPC分类号： H05B6/062 , H05B2213/05
摘要： An induction heat cooking apparatus includes an inverter which generates ultrasonic frequency energy for heating a magnetic load by induction, and a small load detection circuit. The detection circuit includes a comparator which compares the input and output parameters of the inverter and latches a bistable device when the input power is smaller than the output parameter. The bistable device shuts down the inverter to prevent inadvertently placed small utensil objects from being excessively heated.
摘要翻译：一种感应加热烹饪设备包括：通过感应产生用于加热磁性负载的超声频率能量的逆变器和小负载检测电路。检测电路包括比较器，当输入功率小于输出参数时，比较反相器的输入和输出参数并锁存双稳态器件。双稳态装置关闭变频器，防止意外放置的小器具物体过热。

4. 发明授权

US4129767A Induction heating apparatus having timing means responsive to temporary removal of cooking implement 失效
标题翻译：感应加热装置具有响应于临时移除烹饪器具的定时装置
公开(公告)号：US4129767A
公开(公告)日：1978-12-12
申请号：US818322
申请日：1977-07-22
申请人： Keizo Amagami , Masatatsu Nakamura , Hideyuki Kominami , Kouji Funakoshi , Mitsuyuki Kiuchi , Takumi Mizukawa
发明人： Keizo Amagami , Masatatsu Nakamura , Hideyuki Kominami , Kouji Funakoshi , Mitsuyuki Kiuchi , Takumi Mizukawa
IPC分类号： H05B6/06 , H05B5/04
CPC分类号： H05B6/062
摘要： A plurality of switches each is provided in the vicinity of each of a plurality of heater coils of an induction heating apparatus, and responsive to removel of a cooking implement from a corresponding heater coil for being rendered open. A plurality of timers each is connected to each of the switches and causes the heater coil to be de-energized when the cooking implement is kept away from the heater coil for more than a predetermined time period.
摘要翻译：在感应加热装置的多个加热器线圈的每一个附近设置多个开关，并且响应于来自相应的加热器线圈的烹饪器具的去除而被打开。多个定时器各自连接到每个开关，并且当烹饪器具远离加热器线圈超过预定时间段时使加热器线圈断电。

5. 发明授权

US4092510A Multiple-load induction heating cooking apparatus with means for eliminating interference between two or more commutation circuits 失效
标题翻译：具有用于消除两个或更多个换向电路之间的干扰的装置的多负载感应加热烹饪设备
公开(公告)号：US4092510A
公开(公告)日：1978-05-30
申请号：US732660
申请日：1976-10-15
申请人： Mitsuyuki Kiuchi , Takumi Mizukawa , Hideyuki Kominami , Keizo Amagami
发明人： Mitsuyuki Kiuchi , Takumi Mizukawa , Hideyuki Kominami , Keizo Amagami
IPC分类号： H02M7/523 , H02M7/525 , H05B6/06 , H05B6/66 , H05B6/68 , H05B5/04
CPC分类号： H05B6/6488 , H02M7/523 , H02M7/525 , H05B6/062
摘要： A multiple-load induction heating cooking apparatus comprises two or more induction heating commutation circuits each having the junction between its commutating inductor and capacitor manually selectively connected by corresponding one of a plurality of interconnecting switches equal in number to the commutation circuits to form a series-connected LC circuit to a high frequency energy source. The potential at the common point of connection is compared with a reference potential to produce an error signal which is used to control the frequency of the energy source so that the potential at the common point is maintained constant regardless of the magnitude of induction heating loads.
摘要翻译：多负载感应加热烹饪设备包括两个或更多个感应加热换向电路，每个感应加热换向电路的换向电感器和电容器之间的接点手动地通过与换向电路相等的多个互连开关中的相应一个相互连接，连接的LC电路到高频能量源。将公共连接点处的电位与参考电位进行比较，以产生用于控制能量源的频率的误差信号，使得无论感应加热负载的大小如何，公共点处的电位都保持恒定。

6. 发明授权

US4065802A Inverter circuit for induction heating cooking ovens with a protection device 失效
标题翻译：用于感应加热烹饪炉的逆变电路与保护装置
公开(公告)号：US4065802A
公开(公告)日：1977-12-27
申请号：US661991
申请日：1976-02-27
申请人： Takumi Mizukawa , Masatatsu Nakamura , Kouzi Funakoshi , Hideyuki Kominami
发明人： Takumi Mizukawa , Masatatsu Nakamura , Kouzi Funakoshi , Hideyuki Kominami
IPC分类号： H02H7/127 , H02M7/515 , H02M7/523 , H02M7/525 , H05B6/06 , H05B6/12 , H02H7/122
CPC分类号： H05B6/062 , H02H7/127 , H02M7/523 , H02M7/525
摘要： A protection device for a thyristor inverter circuit of an induction heating cooking oven wherein commutation failure of a thyristor is detected by determining that the conduction period of the thyristor is outside a predetermined period or that a voltage applied to the thyristor is outside of a predetermined magnitude. The protection device deactuates the inverter to prevent breakdown of the thyristor and reduces the number of operations of the circuit breaker which is a final protection device. Additionally provided are linked switch actuator apparatus for placing a switch for actuating a thyristor control circuit in a state in which it is always actuated in advance of the actuation of a switch for a heating coil in order to prevent occurrance of a transient high voltage due to the switching of an inductive load in the inverter circuit, and an overheating protection circuit for detecting an abnormal temperature rise of the heating coil and an abnormal load condition to deactuate the inverter.
摘要翻译：一种用于感应加热烹饪炉的晶闸管逆变器电路的保护装置，其中通过确定晶闸管的导通周期在预定周期之外或施加到晶闸管的电压超出预定量值来检测晶闸管的换向故障。保护装置使变频器停用，以防止晶闸管故障，并减少作为最终保护装置的断路器的操作次数。另外提供了用于放置用于致动晶闸管控制电路的开关的连接开关致动器装置，其处于在用于加热线圈的开关的致动之前总是被致动的状态，以便防止由于逆变器电路中的感性负载的切换，以及用于检测加热线圈的异常升温的过热保护电路和异常负载状态，以使逆变器停止。

7. 发明授权

US4055740A Induction heating apparatus using a saturable reactor for power control purposes 失效
标题翻译：感应加热装置使用可饱和电抗器进行功率控制
公开(公告)号：US4055740A
公开(公告)日：1977-10-25
申请号：US666973
申请日：1976-03-15
申请人： Masatatsu Nakamura , Hideyuki Kominami , Keizo Amagami , Takao Kobayashi , Tadao Toyooka
发明人： Masatatsu Nakamura , Hideyuki Kominami , Keizo Amagami , Takao Kobayashi , Tadao Toyooka
IPC分类号： H05B6/12 , H02M7/48 , H02M7/523 , H05B6/06 , H05B5/04
CPC分类号： H05B6/06 , H02M7/523 , H01F2038/003
摘要： An induction heating apparatus includes a saturable reactor having a pair of rectangular ferrite cores. An air gap is provided in each ferrite core to provide a gradually increasing saturation characteristic on the magnetization curve of the cores. A pair of series-connected load windings is coiled around each core and a control winding is coiled around a common magnetic path of the cores. A power control circuit produces a DC control current that passes through the control winding. The high frequency energization current is passed through the load windings. Means are provided to control the DC control current at a desired setting. Preferably, the actual power level is detected to control the DC current through a feedback loop.
摘要翻译：感应加热装置包括具有一对矩形铁氧体磁芯的可饱和电抗器。在每个铁氧体磁芯中提供气隙以在磁芯的磁化曲线上提供逐渐增加的饱和特性。一对串联的负载绕组围绕每个磁芯卷绕，并且控制绕组围绕磁芯的公共磁路卷绕。功率控制电路产生通过控制绕组的直流控制电流。高频通电电流通过负载绕组。提供装置以在期望的设置下控制DC控制电流。优选地，检测实际功率电平以控制通过反馈回路的直流电流。

8. 发明授权

US3989916A Induction heating appliance for a cooking utensil 失效
标题翻译：用于炊具的感应加热器具
公开(公告)号：US3989916A
公开(公告)日：1976-11-02
申请号：US502214
申请日：1974-08-30
申请人： Keizo Amagami , Hazime Mori , Hideyuki Kominami , Yukio Hirai
发明人： Keizo Amagami , Hazime Mori , Hideyuki Kominami , Yukio Hirai
IPC分类号： H02M7/523 , H05B3/68 , H05B6/00 , H05B6/06 , H05B6/12 , H05B5/04
CPC分类号： H05B6/065 , H02M7/523 , H05B6/1245 , H05B6/1272 , H05B2206/022 , Y02B40/126
摘要： An electrically conductive material is heated by Joule heat generated by an eddy current loss and a hysteresis loss which are invited by a magnetic field injuced in the material by a current flowing in proximity to the material. The power output of the heating equipment is varied either electrically or mechanically while maintaining the inductance of the induction heating coil substantially constant.
摘要翻译：导电材料通过由涡流损耗产生的焦耳热加热，并且通过在材料附近流动的电流在材料中被磁场引起的磁滞损耗加热。加热设备的功率输出可以电或机械地改变，同时保持感应加热线圈的电感基本恒定。

9. 发明授权

US5319174A Induction heating cooker with constant frequency controlled inverter 失效
标题翻译：感应加热炊具带恒压变频器
公开(公告)号：US5319174A
公开(公告)日：1994-06-07
申请号：US573407
申请日：1990-08-28
申请人： Hideki Omori , Hirofumi Noma , Hideyuki Kominami , Toshiaki Iwai , Kazuhiko Asada
发明人： Hideki Omori , Hirofumi Noma , Hideyuki Kominami , Toshiaki Iwai , Kazuhiko Asada
IPC分类号： H05B6/12 , H05B6/06
CPC分类号： H02M7/53803 , H05B6/065 , Y02B70/1441
摘要： An induction heating cooker has a rectifier (13) for producing pulsating DC current, an inverter (14) which receives the pulsating current given from the rectifier (13) and produces a high frequency output current and a load circuit (15) including an output coil (21) and a resonance capacitor (22) connected in series to each other to receive high frequency output signal from the inverter, and the variation or adjustment of output electromagnetic power is made by changing duty ratio of the high frequency output current of the inverter by giving variable duty ratio setting signals to switching elements (Qa, Qb) in the inverter 14; the frequency of the high frequency output current of the inverter 14 is fixed, and therefore, unpleasant interference sound is not generated at parallel simultaneous operation.
摘要翻译：感应加热烹调器具有用于产生脉动直流电流的整流器（13），接收从整流器（13）给出的脉动电流并产生高频输出电流的逆变器（14）和负载电路（15），其包括输出线圈（21）和谐振电容器（22），它们彼此串联连接以接收来自逆变器的高频输出信号，并且通过改变输出电磁功率的高频输出电流的占空比来进行输出电磁功率的变化或调整通过向逆变器14中的开关元件（Qa，Qb）赋予可变占空比设定信号; 逆变器14的高频输出电流的频率是固定的，因此在并行同时操作时不产生令人不快的干扰声。

10. 发明授权

US3993885A Pan detector for an induction heating apparatus 失效
标题翻译：用于感应加热装置的摇摄探测器
公开(公告)号：US3993885A
公开(公告)日：1976-11-23
申请号：US544844
申请日：1975-01-28
申请人： Hideyuki Kominami , Keizo Amagami , Yukio Hirai , Tadao Toyooka
发明人： Hideyuki Kominami , Keizo Amagami , Yukio Hirai , Tadao Toyooka
IPC分类号： A47J27/00 , H05B6/12 , H05B5/04
CPC分类号： H05B6/062 , H05B2213/05
摘要： A pan detector for an induction heating apparatus of the type having an induction heating coil adapted to electromagnetically couple to a cooking vessel comprises a first, vertically movable magnet and a second, fixed magnet spaced therefrom and a reed switch disposed between the first and second magnets. Upon the placement of a cooking vessel of magnetic metal in overlying relation to the heating coil, the first magnet moves upwardy by attraction between the bottom wall of the cooking vessel and the first magnet to result in a change in magnetic flux level in the neighborhood of the reed switch. The reed switch operates in response to the change in magnetic flux level to permit and prevent, respectively, energization of the heating coil. The first and second magnets have their poles oriented in opposition to each other to provide repulsion therebetwen to increase the attraction.
摘要翻译：一种用于感应加热装置的摇摄检测器，其具有适于电磁耦合到烹饪容器的感应加热线圈，包括第一可垂直运动的磁体和与其间隔开的第二固定磁体和设置在第一和第二磁体之间的舌簧开关。当以与加热线圈重叠的方式放置磁性金属烹饪容器时，第一磁体通过烹饪容器的底壁和第一磁体之间的吸引而向上移动，导致在附近的磁通量水平的变化簧片开关。簧片开关响应于磁通量水平的变化而工作，以允许并防止加热线圈的通电。第一和第二磁体的极点彼此相对定向以提供排斥以增加吸引力。

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