公开(公告)号：US08723089B2

公开(公告)日：2014-05-13

申请号：US11917713

申请日：2006-06-16

申请人： Hideki Sadakata ,  Hiroshi Tominaga ,  Yoshiaki Ishio ,  Izuo Hirota

发明人： Hideki Sadakata ,  Hiroshi Tominaga ,  Yoshiaki Ishio ,  Izuo Hirota

IPC分类号： H05B6/04 ,  H02M7/537

CPC分类号： H05B6/062 ,  H02M1/4225 ,  H02M5/458 ,  H02M2001/007 ,  Y02B70/126

摘要： An induction heating apparatus is capable of stop heating without excessively boosting output voltages of a booster circuit and a power factor correction circuit. The induction heating apparatus includes a boosting function unit, an inverter circuit, and a booster circuit controller. The boosting function unit includes a power factor correction circuit and a booster circuit, and boosts an input direct-current power to a direct-current voltage having a peak value larger than the peak value of the input direct-current power by turning on/off a switching element. The inverter circuit includes a heating coil, and inputs the direct-current voltage output by the boosting function unit to generate a high frequency current in the heating coil by turning on or off a different switching element. The booster circuit controller stops a boosting operation of the boosting function unit without a prescribed delay from the stop of an operation of the inverter circuit.

摘要翻译： 感应加热装置能够在不过分升压升压电路和功率因数校正电路的输出电压的情况下停止加热。 感应加热装置包括升压功能单元，逆变器电路和升压电路控制器。 升压功能单元包括功率因数校正电路和升压电路，并且通过接通/断开将输入直流电力提升到具有大于输入直流电力的峰值的峰值的直流电压 开关元件。 逆变器电路包括加热线圈，并且输入由升压功能单元输出的直流电压，以通过接通或断开不同的开关元件在加热线圈中产生高频电流。 升压电路控制器停止升压功能单元的升压操作，而不会停止逆变器电路的操作的规定延迟。

公开(公告)号：US20110278285A1

公开(公告)日：2011-11-17

申请号：US13145686

申请日：2010-01-21

申请人： Masafumi Sadahira ,  Tomoya Fujinami ,  Naoaki Ishimaru ,  Izuo Hirota ,  Takahiro Miyauchi ,  Fumitaka Ogasawara

发明人： Masafumi Sadahira ,  Tomoya Fujinami ,  Naoaki Ishimaru ,  Izuo Hirota ,  Takahiro Miyauchi ,  Fumitaka Ogasawara

IPC分类号： H05B6/54 ,  H05B1/00

CPC分类号： H05B6/1209 ,  H05B6/062 ,  Y02B40/123

摘要： There is provided a heating/cooking equipment capable of accurately determining boiling over. The heating/cooking equipment includes: a top plate (104) connected to a reference potential; a heating unit (105) configured to heat an object to be heated placed on the top plate; an electrode (106) arranged under the top plate; a capacitance detecting unit (107) configured to detect the electrostatic capacitance of the electrode; a boiling over detecting unit (108) configured to detect whether or not a material to be cooked in the object to be heated has boiled over on the top plate, based on a value of the electrostatic capacitance detected by the capacitance detecting unit; and a control unit (109) configured to control the heating operation of the heating unit based on a boiling over detection result from the boiling over detecting unit. The capacitance detecting unit (107) detects a change in the electrostatic capacitance of the electrode by exploiting capacitive coupling between the electrode and the reference potential which is enhanced by increase in a boiled over amount of the material to be cooked with moisture contained in the material to be cooked functioning as a dielectric when the material to be cooked boils over on the top plate.

摘要翻译： 提供能够准确地确定沸腾的加热/烹饪设备。 加热烹饪设备包括：连接到参考电位的顶板（104）; 加热单元，被配置为加热放置在所述顶板上的待加热物体; 布置在所述顶板下方的电极（106） 电容检测单元，被配置为检测电极的静电电容; 沸腾检测单元（108），被配置为基于由电容检测单元检测到的静电电容的值，检测待加热物体中待烹饪材料是否在顶板上沸腾; 以及控制单元（109），其被配置为基于来自所述沸腾检测单元的沸腾检测结果来控制所述加热单元的加热操作。 电容检测单元（107）通过利用电极和参考电位之间的电容耦合来检测电极的静电电容的变化，该电容耦合通过增加包含在材料中的水分中煮沸的材料的沸腾量而增加 待烹饪的材料在顶板上沸腾时被烹饪起电介质的作用。

公开(公告)号：US20100230401A1

公开(公告)日：2010-09-16

申请号：US12161430

申请日：2007-02-01

申请人： Takahiro Miyauchi ,  Izuo Hirota

发明人： Takahiro Miyauchi ,  Izuo Hirota

IPC分类号： H05B6/06

CPC分类号： H05B6/062

摘要： An induction heating device includes the following elements: a resonance circuit; a power factor improvement circuit for boosting rectified output, supplying the output to an inverter, and improving the power factor of a commercial alternating current; and a load material detector for detecting the material of the load. The inverter includes switching elements forming a full-bridge circuit. The drive frequency of the switching elements is switched between a frequency substantially equal to an integral multiple of the resonance frequency of the resonance circuit and a frequency substantially 1/n time (n being an integer equal to or larger than two) thereof, according to a detection result of the load material.

摘要翻译： 感应加热装置包括以下元件：谐振电路; 用于提高整流输出的功率因数改善电路，向逆变器提供输出，并提高商用交流电的功率因数; 以及负载材料检测器，用于检测负载的材料。 逆变器包括形成全桥电路的开关元件。 开关元件的驱动频率在基本上等于谐振电路的谐振频率的整数倍的频率和基本上为1 / n时间（n为等于或大于2的整数）的频率之间切换，根据 负载材料的检测结果。

公开(公告)号：US20100102054A1

公开(公告)日：2010-04-29

申请号：US12520263

申请日：2007-03-19

申请人： Tomoya Fujinami ,  Naoaki Ishimaru ,  Izuo Hirota ,  Akira Kataoka

发明人： Tomoya Fujinami ,  Naoaki Ishimaru ,  Izuo Hirota ,  Akira Kataoka

IPC分类号： H05B6/06

CPC分类号： H05B6/062 ,  H05B2213/05 ,  H05B2213/07

摘要： An induction heating device includes a top plate, a thermo-sensitive device, a temperature detector, a coil, a controller, and a light-emitting section. The top plate places thereon a cooking utensil containing material to be cooked. The thermo-sensitive device changes its electrical characteristics with the temperature of the cooking utensil. The temperature detector detects the temperature of the cooking utensil based on the electrical characteristics of the thermo-sensitive device. The coil heats the cooking utensil. The controller controls the coil based on the temperature information of the temperature detector, thereby controlling an amount of the electric heating power to be supplied to the cooking utensil. The light-emitting section emits visible light to the area over the thermo-sensitive device. The light from the light-emitting section illuminates the area over the thermo-sensitive device through the top plate.

摘要翻译： 感应加热装置包括顶板，热敏装置，温度检测器，线圈，控制器和发光部。 顶板放置有包含要烹饪的材料的烹饪器具。 热敏设备改变其电特性与炊具的温度。 温度检测器基于热敏装置的电特性检测炊具的温度。 线圈加热炊具。 控制器基于温度检测器的温度信息来控制线圈，由此控制供给到炊具的电加热功率的量。 发光部分向热敏元件上的区域发射可见光。 来自发光部的光通过顶板照射热敏装置上的区域。

公开(公告)号：US20080049470A1

公开(公告)日：2008-02-28

申请号：US11658889

申请日：2006-06-02

申请人： Yoshiaki Ishio ,  Hiroshi Tominaga ,  Hideki Sadakata ,  Izuo Hirota

发明人： Yoshiaki Ishio ,  Hiroshi Tominaga ,  Hideki Sadakata ,  Izuo Hirota

IPC分类号： H02M1/42

CPC分类号： H05B6/08 ,  H05B6/062

摘要： The present invention provides an induction heating apparatus that can detect that a power factor correction circuit is in operation or in non-operation. The induction heating apparatus includes a power factor correction circuit that corrects a power factor of an inputted direct-current power supply by turning on and off a switching element connected to a choke coil, a booster circuit that boosts an output voltage of the power factor correction circuit by turning on and off a switching element connected to a choke coil, an inverter circuit that inputs the output voltage of the booster circuit to generate a high-frequency current in a heating coil by turning on and off a switching element, and an inverter circuit drive control unit that, in driving the power factor correction circuit, controls output of the inverter circuit such that an input current reaches a target value and detects the voltage in the booster circuit. The inverter circuit drive control unit stops the output of the inverter circuit when it is detected that the power factor correction circuit is in non-operation.

摘要翻译： 本发明提供一种感应加热装置，其能够检测功率因数校正电路正在运行或不工作。 感应加热装置包括功率因数校正电路，其通过接通和断开连接到扼流线圈的开关元件来校正输入的直流电源的功率因数，升压电路，其升高功率因数校正的输出电压 通过接通和断开连接到扼流线圈的开关元件的电路，反相器电路，其输入升压电路的输出电压以通过接通和断开开关元件而在加热线圈中产生高频电流，以及逆变器 电路驱动控制单元，其在驱动所述功率因数校正电路时，控制所述逆变器电路的输出，使得输入电流达到目标值并检测所述升压电路中的电压。 当检测到功率因数校正电路不工作时，逆变器电路驱动控制单元停止逆变器电路的输出。

公开(公告)号：US20070108192A1

公开(公告)日：2007-05-17

申请号：US11622219

申请日：2007-01-11

申请人： Akira KATAOKA ,  Izuo HIROTA ,  Katsuyuki AIHARA ,  Nobuyoshi MAKIO

发明人： Akira KATAOKA ,  Izuo HIROTA ,  Katsuyuki AIHARA ,  Nobuyoshi MAKIO

IPC分类号： H05B6/12

CPC分类号： H05B6/1209 ,  H05B2206/022

摘要： An induction heating apparatus wherein an electrostatic shield and the low-potential portion of an inverter circuit are electrically connected securely is provided. The induction heating apparatus in accordance with the present invention comprises a top plate 11 on which a matter 14 to be heated is placed, an induction heating coil 12 for induction heating the matter 14 to be heated, driving means 19 for driving the induction heating coil 12, and a stationary plate 15 and a cover for stationary plate 18 provided between the matter 14 to be heated and the induction heating coil 12, wherein connection portions 17a each integrated with a connection terminal 17 are electrically connected to the electrostatic shield 16 provided on the stationary plate 15 using a conductive adhesive, and the connection parts are held between the stationary plate 15 and the cover for stationary plate 18. With this configuration, the connection parts can be held securely and stably.

摘要翻译： 提供了一种感应加热装置，其中静电屏蔽和逆变器电路的低电位部分被牢固地电连接。 根据本发明的感应加热装置包括顶板11，待加热物14放置在其上，用于感应加热被加热物14的感应加热线圈12，用于驱动感应加热线圈的驱动装置19 设置在要加热的物质14和感应加热线圈12之间的固定板15和固定板18的盖子，其中与连接端子17一体化的连接部分17a电连接到所提供的静电屏蔽件16 在固定板15上使用导电粘合剂，并且连接部分保持在固定板15和固定板18的盖之间。 通过这种结构，可以牢固且稳定地保持连接部。

公开(公告)号：US07009159B2

公开(公告)日：2006-03-07

申请号：US10507990

申请日：2003-03-19

申请人： Akira Kataoka ,  Izuo Hirota ,  Katsuyuki Aihara ,  Nobuyoshi Makio

发明人： Akira Kataoka ,  Izuo Hirota ,  Katsuyuki Aihara ,  Nobuyoshi Makio

IPC分类号： H05B6/12

CPC分类号： H05B6/062 ,  H05B6/1263 ,  H05B2206/022

摘要： An induction heating apparatus with high safety is provided in which leakage current is prevented from flowing to the human body and there is no possibility of an electric shock even when an electrostatic shielding member does not sufficiently perform its function. The driving apparatus of the present invention is an induction heating apparatus in which the electrostatic shielding member is provided between an object to be heated and an induction heating coil where sensing portion for sensing the conduction condition of the electrostatic shielding member is provided, and driving portion for driving the induction heating coil is controlled through sensing by the sensing portion.

摘要翻译： 提供了一种具有高安全性的感应加热装置，其中防止了泄漏电流流向人体，即使静电屏蔽构件不能充分发挥功能也不会发生电击。 本发明的驱动装置是一种感应加热装置，其中静电屏蔽构件设置在待加热物体和感应加热线圈之间，其中设有用于感测静电屏蔽构件的导电状态的感测部分，以及驱动部分 用于驱动感应加热线圈通过感测部分的感测来控制。

公开(公告)号：US20050205561A1

公开(公告)日：2005-09-22

申请号：US10515570

申请日：2004-05-24

申请人： Toshihiro Keishima ,  Akira Kataoka ,  Izuo Hirota

发明人： Toshihiro Keishima ,  Akira Kataoka ,  Izuo Hirota

IPC分类号： H05B6/12

CPC分类号： H05B6/1209

摘要： An electric conductor provided for decreasing a lifting force exerted on an object being heated has an aperture of a small diameter in the center thereof, which leaves a large surface area to enhance reduction of the lifting force. The electric conductor is also provided with a comb section around the aperture for preventing a circling current induced in the electric conductor from flowing into an area around the aperture. This structure can thus alleviate excessive heating around the aperture, and allow the heating coil to produce a high output power for a long duration of time even when an inwardly concaved pan is used.

摘要翻译： 设置用于减小施加在被加热物体上的提升力的电导体在其中心具有小直径的孔，留下较大的表面积以增强提升力的降低。 电导体还设置有围绕孔的梳状部分，用于防止在电导体中感应的环绕电流流入孔周围的区域。 因此，这种结构可以减轻围绕孔径的过度加热，并且即使当使用向内凹的锅时，允许加热线圈长时间地产生高输出功率。

公开(公告)号：US09131539B2

公开(公告)日：2015-09-08

申请号：US13143882

申请日：2009-12-28

申请人： Tomoya Fujinami ,  Masafumi Sadahira ,  Naoaki Ishimaru ,  Izuo Hirota ,  Takahiro Miyauchi ,  Fumitaka Ogasawara

发明人： Tomoya Fujinami ,  Masafumi Sadahira ,  Naoaki Ishimaru ,  Izuo Hirota ,  Takahiro Miyauchi ,  Fumitaka Ogasawara

IPC分类号： H05B6/12 ,  H05B6/06

CPC分类号： H05B6/1209 ,  H05B6/062

摘要： Disclosed is an induction cooking device that is not likely to be affected by induction heating and wherein boiling-over can be detected. An induction cooking device has: a top plate on which a cooking container is placed; a heating coil that generates an induction magnetic field for heating the cooking container; a heating control unit that controls the heating power of the cooking container by controlling the high-frequency current supplied to the heating coil; electrodes disposed in a lower surface of the top plate; and an electrostatic capacity detector that detects changes in electrostatic capacity occurring in the electrodes when articles to be cooked contact with the top plate. When the electrostatic capacity detector senses changes in the electrostatic capacity of the electrodes, the heating control unit decreases or stops the heating power of the cooking container, and the electrodes are disposed outside of the outer circumference the heating coil.

摘要翻译： 公开了一种感应加热装置，其不太可能受到感应加热的影响，并且可以检测出沸腾。 一种感应加热烹调器具有：放置烹饪容器的顶板; 加热线圈，其产生用于加热烹饪容器的感应磁场; 加热控制单元，其通过控制供给到加热线圈的高频电流来控制烹饪容器的加热功率; 设置在顶板下表面的电极; 以及静电容量检测器，其检测待烹饪物品与顶板接触时在电极中发生的静电容量的变化。 当静电电容检测器感测电极的静电电容的变化时，加热控制单元减小或停止烹饪容器的加热功率，并且电极设置在加热线圈的外周的外侧。

公开(公告)号：US08796602B2

公开(公告)日：2014-08-05

申请号：US12161430

申请日：2007-02-01

申请人： Takahiro Miyauchi ,  Izuo Hirota

发明人： Takahiro Miyauchi ,  Izuo Hirota

IPC分类号： H05B6/08 ,  G03G15/20 ,  H02M5/45

CPC分类号： H05B6/062

摘要： An induction heating device includes the following elements: a resonance circuit; a power factor improvement circuit for boosting rectified output, supplying the output to an inverter, and improving the power factor of a commercial alternating current; and a load material detector for detecting the material of the load. The inverter includes switching elements forming a full-bridge circuit. The drive frequency of the switching elements is switched between a frequency substantially equal to a resonance frequency of the resonance circuit and a frequency substantially 1/n time (n being an integer equal to or larger than two) thereof, according to a detection result of the load material.

摘要翻译： 感应加热装置包括以下元件：谐振电路; 用于提高整流输出的功率因数改善电路，向逆变器提供输出，并提高商用交流电的功率因数; 以及负载材料检测器，用于检测负载的材料。 逆变器包括形成全桥电路的开关元件。 根据检测结果，开关元件的驱动频率在基本上等于谐振电路的谐振频率的频率和基本上为1 / n时间（n为等于或大于2的整数）的频率之间切换 负载材料。