公开(公告)号：US4016392A

公开(公告)日：1977-04-05

申请号：US544845

申请日：1975-01-28

Applicant: Takao Kobayashi ,  Keizo Amagami ,  Takumi Mizukawa ,  Tadao Toyooka

Inventor： Takao Kobayashi ,  Keizo Amagami ,  Takumi Mizukawa ,  Tadao Toyooka

IPC: H05B6/12 ,  H02M7/515 ,  H05B3/68 ,  H05B6/06 ,  H05B5/04

CPC classification number: H05B6/062 ,  H05B3/683 ,  H05B2213/05

Abstract: Electromagnetic coupling between a pan or utensil load to be heated by magnetic induction and a source of high frequency magnetic flux is sensed by detecting a current which is indicative of the electromagnetic coupling by means of a current transformer. The detected current is compared with a reference level. Intermittent generation of the magnetic flux is commenced when, for example, a small magnetic metal object is inadvertently placed as a load with the result that the detected current becomes lower than the reference level. This allows intermittent check for the presence and absence of the inadvertently placed load for subsequent cooking operations and minimization of the heat generated therein.

Abstract translation: 通过检测通过电流互感器指示电磁耦合的电流来感测通过磁感应加热的锅或器具负载与高频磁通源之间的电磁耦合。 将检测到的电流与参考电平进行比较。 当例如小的磁性金属物体被无意地放置为负载时，开始磁通的间歇产生，结果检测到的电流变得低于参考电平。 这允许对随后的烹饪操作的无意放置的负载的存在和不存在进行间歇检查并且最小化其中产生的热量。

公开(公告)号：US3993885A

公开(公告)日：1976-11-23

申请号：US544844

申请日：1975-01-28

Applicant: Hideyuki Kominami ,  Keizo Amagami ,  Yukio Hirai ,  Tadao Toyooka

Inventor： Hideyuki Kominami ,  Keizo Amagami ,  Yukio Hirai ,  Tadao Toyooka

IPC: A47J27/00 ,  H05B6/12 ,  H05B5/04

CPC classification number: H05B6/062 ,  H05B2213/05

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4055740A

公开(公告)日：1977-10-25

申请号：US666973

申请日：1976-03-15

Applicant: Masatatsu Nakamura ,  Hideyuki Kominami ,  Keizo Amagami ,  Takao Kobayashi ,  Tadao Toyooka

Inventor： Masatatsu Nakamura ,  Hideyuki Kominami ,  Keizo Amagami ,  Takao Kobayashi ,  Tadao Toyooka

IPC: H05B6/12 ,  H02M7/48 ,  H02M7/523 ,  H05B6/06 ,  H05B5/04

CPC classification number: H05B6/06 ,  H02M7/523 ,  H01F2038/003

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4002875A

公开(公告)日：1977-01-11

申请号：US621620

申请日：1975-10-10

Applicant: Mitsuyuki Kiuchi ,  Shigeru Kusunoki ,  Hiroshi Fujieda ,  Keizo Amagami ,  Tadao Toyooka

Inventor： Mitsuyuki Kiuchi ,  Shigeru Kusunoki ,  Hiroshi Fujieda ,  Keizo Amagami ,  Tadao Toyooka

IPC: F24C7/02 ,  H02M7/523 ,  H03B9/10 ,  H05B6/06 ,  H05B6/12 ,  H05B6/68 ,  H05B11/00 ,  H05B9/06

CPC classification number: H05B6/6488 ,  F24C7/02 ,  H02M7/523 ,  H03B9/10 ,  H05B6/681

Abstract: A high frequency heating apparatus in which a combination of a microwave oven for heating food through dielectric heating and a cooking device for heating metallic vessel through electrical induction is incorporated to effect efficient cooking and simultaneous formation of brown scorching on the surface of food. In the heating apparatus, power required for the magnetron of the microwave oven and also for the heating coil of the cooking device is supplied through one inverter unit, by which arrangement, an efficient cooking apparatus of compact size is presented.

Abstract translation: 一种高频加热装置，其中结合了通过介电加热加热食物的微波炉和通过电感应加热金属容器的烹饪装置的组合，以实现食品表面上的高效烹饪和同时形成棕色焦烧。 在加热装置中，通过一个逆变器单元供给微波炉的磁控管和烹调装置的加热线圈所需的功率，通过该逆变器单元提供了紧凑尺寸的有效的烹饪设备。