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    • 6. 发明授权
    • Pan detector for an induction heating apparatus
    • 用于感应加热装置的摇摄探测器
    • US3993885A
    • 1976-11-23
    • US544844
    • 1975-01-28
    • Hideyuki KominamiKeizo AmagamiYukio HiraiTadao Toyooka
    • Hideyuki KominamiKeizo AmagamiYukio HiraiTadao Toyooka
    • A47J27/00H05B6/12H05B5/04
    • H05B6/062H05B2213/05
    • 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.
    • 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。
    • 7. 发明授权
    • Multi-unit induction heat cooking apparatus having a common noise
rejection filter
    • 具有公共噪声抑制滤波器的多单元感应加热烹饪设备
    • US4578553A
    • 1986-03-25
    • US488523
    • 1983-04-27
    • Hidekazu YamashitaHideyuki Kominami
    • Hidekazu YamashitaHideyuki Kominami
    • H05B6/12H05B6/06H05B1/02H05B6/64
    • H05B6/06
    • A multi-unit induction heating apparatus for cooking applications comprises a plurality of inverter units for generating high frequency energy, each of the inverters having first and second input terminals, the first input terminals being coupled respectively through first circuits to a first terminal of a low frequency power source, the second input terminals being coupled together to a common circuit node which is connected through a second circuit to a second terminal of the power source. The apparatus further includes a like plurality of manually operated switches respectively connected in the first circuits and a like plurality of first high frequency noise rejection filters connected respectively in the first circuits. The second circuit includes a common, high frequency noise rejection filter.
    • 用于烹饪应用的多单元感应加热装置包括用于产生高频能量的多个逆变器单元,每个逆变器具有第一和第二输入端子,第一输入端子分别通过第一电路耦合到低电平的第一端子 频率电源,第二输入端子耦合到公共电路节点,该公共电路节点通过第二电路连接到电源的第二端子。 该装置还包括分别连接在第一电路中的多个手动操作开关和分别连接在第一电路中的相同多个第一高频噪声抑制滤波器。 第二电路包括一个通用的高频噪声抑制滤波器。
    • 10. 发明授权
    • Inverter circuit for induction heating cooking ovens with a protection
device
    • 用于感应加热烹饪炉的逆变电路与保护装置
    • US4065802A
    • 1977-12-27
    • US661991
    • 1976-02-27
    • Takumi MizukawaMasatatsu NakamuraKouzi FunakoshiHideyuki Kominami
    • Takumi MizukawaMasatatsu NakamuraKouzi FunakoshiHideyuki Kominami
    • H02H7/127H02M7/515H02M7/523H02M7/525H05B6/06H05B6/12H02H7/122
    • H05B6/062H02H7/127H02M7/523H02M7/525
    • 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.
    • 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。