公开(公告)号：US06894255B2

公开(公告)日：2005-05-17

申请号：US10382809

申请日：2003-03-05

申请人： Yuji Fujii ,  Kouji Niiyama ,  Izuo Hirota ,  Takahiro Miyauchi ,  Atsushi Fujita ,  Hirofumi Inui

发明人： Yuji Fujii ,  Kouji Niiyama ,  Izuo Hirota ,  Takahiro Miyauchi ,  Atsushi Fujita ,  Hirofumi Inui

IPC分类号： H05B6/06 ,  H05B6/12 ,  F24H1/00

CPC分类号： H05B6/062 ,  H05B2213/07

摘要： When a pan made of a non-magnetic material, such as aluminum, is used for cooking while the temperature is being controlled, a notice is made to the user to the effect that the temperature control function has been stopped and that the temperature should be manually adjusted, when the material detection section detects that the pan is made of a non-magnetic material or a pan floating phenomenon has occurred, in order to prevent abnormal increase in the temperature of the pan due to incorrect temperature detection caused by the pan floating phenomenon, a set temperature is lowered.

摘要翻译： 当由诸如铝之类的非磁性材料制成的盘子在温度被控制时被用于烹饪时，向使用者通知温度控制功能已经停止并且温度应该是 手动调整，当材料检测部检测到锅由非磁性材料制成或浮起现象发生时，为了防止由于浮盘不正确的温度检测而导致的锅的温度异常升高 现象，设定温度降低。

公开(公告)号：US06770857B2

公开(公告)日：2004-08-03

申请号：US10373745

申请日：2003-02-27

申请人： Izuo Hirota ,  Atsushi Fujita ,  Takahiro Miyauchi ,  Takeshi Kitaizumi ,  Yuji Fujii ,  Kouji Niiyama ,  Hideki Omori

发明人： Izuo Hirota ,  Atsushi Fujita ,  Takahiro Miyauchi ,  Takeshi Kitaizumi ,  Yuji Fujii ,  Kouji Niiyama ,  Hideki Omori

IPC分类号： H05B606

CPC分类号： H05B6/062 ,  H05B6/04

摘要： An induction heating apparatus can heat aluminum pot etc. with pot vibration noise being suppressed. During a turn-on time of second switching device 57, an energy is accumulated at choke coil 54, and at the same time a resonant current with a shorter period than the turn-on time of second switching device 57 or a driving time of first switching device 55 is generated at heating coil 59, so that during turn-off of second switching device 57, i.e., during on-time of first switching device 55, the energy accumulated at choke coil 54 is transferred to second smoothing capacitor 62. And then the output power is supplied from smoothing capacitor 62 to heating coil 59, thereby reducing the pot vibration noise, which is caused by pulsating current of input voltage.

摘要翻译： 感应加热装置可以加热铝锅等，同时抑制锅振动噪声。 在第二开关装置57的接通时间期间，在扼流线圈54处累积能量，并且同时具有比第二开关装置57的导通时间短的周期的谐振电流或第一开关装置57的驱动时间 开关装置55在加热线圈59处产生，使得在第二开关装置57的关断期间，即在第一开关装置55的接通时间期间，积聚在扼流圈54处的能量被传递到第二平滑电容器62.并且 那么输出功率从平滑电容器62提供给加热线圈59，从而减小由输入电压的脉动电流引起的振荡噪音。

公开(公告)号：US07015438B2

公开(公告)日：2006-03-21

申请号：US10502139

申请日：2003-01-24

申请人： Izuo Hirota ,  Yuji Fujii ,  Koji Niiyama ,  Takahiro Miyauchi ,  Atsushi Fujita ,  Manabu Takahashi

发明人： Izuo Hirota ,  Yuji Fujii ,  Koji Niiyama ,  Takahiro Miyauchi ,  Atsushi Fujita ,  Manabu Takahashi

IPC分类号： H05B6/06

CPC分类号： H05B6/062

摘要： An induction heater having a safety function of lowering or stopping the heating power when an object to be heated moves, the safety function hardly interfering with the cooking activities of a user is provided. The induction heater includes an inverter circuit, an output detection section for detecting the magnitude of the inverter circuit, a first movement detection section, and a storage section for storing a control value before the first movement detection section detects a movement of the object. In a reach control mode, the output of the inverter circuit is gradually increased to a target. In a stable control mode, the output of the inverter circuit is maintained at the target. When the first movement detection section detects a movement of the object, a control section shifts to a first output mode in which a control value derived from the stored control value is output.

摘要翻译： 提供一种当被加热物体移动时具有降低或停止加热功率的安全功能的感应加热器，其安全功能几乎不干扰用户的烹饪活动。 感应加热器包括逆变器电路，用于检测逆变器电路的大小的输出检测部分，第一运动检测部分和用于存储第一运动检测部分检测到物体运动之前的控制值的存储部分。 在到达控制模式中，逆变器电路的输出逐渐增加到目标。 在稳定的控制模式下，逆变器电路的输出保持在目标。 当第一移动检测部分检测到物体的移动时，控制部分转换到从存储的控制值导出的控制值被输出的第一输出模式。

公开(公告)号：US07157674B2

公开(公告)日：2007-01-02

申请号：US10531893

申请日：2003-11-18

申请人： Takahiro Miyauchi ,  Koji Niiyama ,  Yuji Fujii ,  Atsushi Fujita ,  Izuo Hirota

发明人： Takahiro Miyauchi ,  Koji Niiyama ,  Yuji Fujii ,  Atsushi Fujita ,  Izuo Hirota

IPC分类号： H05B6/08 ,  H05B6/12 ,  A47J27/00

CPC分类号： H05B6/062

摘要： A detector is operable to detect a displacement of a load by an ascending force based on a period of time from a time a heating output of an inverter drops from a predetermined level to a first level, to a time the heating output returns back to a second level larger than first level. Thereby, the detector distinguishes an intentional removal of the load from the displacement of the load by the ascending force. An induction heater including the detector reduces the displacement of the load by the ascending force and stops the heating of the load when the load is removed intentionally.

摘要翻译： 检测器可操作以基于从逆变器的加热输出从预定水平下降到第一水平的时间段的上升力来检测负载的位移，直到加热输出返回到 第二级大于一级。 因此，检测器通过上升力来区分负载的有意移除与负载的位移。 包括检测器的感应加热器通过上升力减小负载的位移，并且在有意地移除负载时停止负载的加热。

公开(公告)号：US20060157478A1

公开(公告)日：2006-07-20

申请号：US10531893

申请日：2003-11-18

申请人： Takahiro Miyauchi ,  Koji Niiyama ,  Yuji Fujii ,  Atsushi Fujita ,  Izuo Hirota

发明人： Takahiro Miyauchi ,  Koji Niiyama ,  Yuji Fujii ,  Atsushi Fujita ,  Izuo Hirota

IPC分类号： H05B6/06

CPC分类号： H05B6/062

摘要： A detector is operable to detect a displacement of a load by an ascending force based on a period of time from a time a heating output of an inverter drops from a predetermined level to a first level, to a time the heating output returns back to a second level larger than first level. Thereby, the detector distinguishes an intentional removal of the load from the displacement of the load by the ascending force. An induction heater including the detector reduces the displacement of the load by the ascending force and stops the heating of the load when the load is removed intentionally.

摘要翻译： 检测器可操作以基于从逆变器的加热输出从预定水平下降到第一水平的时间段的上升力来检测负载的位移，直到加热输出返回到 第二级大于一级。 因此，检测器通过上升力来区分负载的有意移除与负载的位移。 包括检测器的感应加热器通过上升力减小负载的位移，并且在有意地移除负载时停止负载的加热。

公开(公告)号：US07057144B2

公开(公告)日：2006-06-06

申请号：US10491833

申请日：2003-02-21

申请人： Izuo Hirota ,  Atsushi Fujita ,  Takahiro Miyauchi ,  Yuji Fujii ,  Akira Kataoka ,  Katsuyuki Aihara ,  Nobuyoshi Makio

发明人： Izuo Hirota ,  Atsushi Fujita ,  Takahiro Miyauchi ,  Yuji Fujii ,  Akira Kataoka ,  Katsuyuki Aihara ,  Nobuyoshi Makio

IPC分类号： H05B6/12 ,  H05B6/32

CPC分类号： H05B6/1254 ,  H05B2206/022 ,  Y02B40/126

摘要： In an induction heating apparatus, in order to decrease the buoyancy exerted on an object to be heated which is made of a material having high electrical conductivity and low magnetic permeability, such as aluminum, an electrical conductor is provided between a heating coil and the object to be heated, thereby increasing the equivalent series resistance of the heating coil. Hence, the current of the heating coil, which is required for obtaining a desired heating output, is decreased, whereby the buoyancy of the object to be heated can be decreased. In addition, the electrical conductor is divided into two halves, and they are arranged in a circular arc form with a clearance provided therebetween and made close contact with the bottom face of a plate, whereby the temperature rise of the electrical conductor can be restricted. Furthermore, the heat of the electrical conductor is transferred and dissipated to the object to be heated, whereby the heating coil and the like are not damaged even if the electrical conductor is heated. An electrical conductor temperature sensor for detecting the temperature of the electrical conductor is provided; when the detection temperature becomes a predetermined temperature, the heating output of a drive circuit is decreased, whereby the heat generation of the electrical conductor is decreased and the heating coil and the like are not damaged by heat.

摘要翻译： 在感应加热装置中，为了降低由诸如铝的导电性高导磁率低的材料制成的被加热物体的浮力，在加热线圈和物体之间设置电导体 被加热，从而增加加热线圈的等效串联电阻。 因此，为了获得期望的加热输出而需要的加热线圈的电流减小，从而能够降低待加热物体的浮力。 此外，电导体被分成两半，并且它们被布置成圆弧形，间隙设置在它们之间并且与板的底面紧密接触，由此可以限制电导体的温度升高。 此外，电导体的热量被传递并散发到被加热物体，由此即使加热电导体，加热线圈等也不会损坏。 提供用于检测电导体的温度的电导体温度传感器; 当检测温度变为预定温度时，驱动电路的加热输出减小，导电体的发热量减少，加热线圈等不会受到热损伤。

公开(公告)号：US20050121438A1

公开(公告)日：2005-06-09

申请号：US10502139

申请日：2003-01-24

申请人： Izuo Hirota ,  Yuji Fujii ,  Koji Niiyama ,  Takahiro Miyauchi ,  Atsushi Fujita ,  Manabu Takahashi

发明人： Izuo Hirota ,  Yuji Fujii ,  Koji Niiyama ,  Takahiro Miyauchi ,  Atsushi Fujita ,  Manabu Takahashi

IPC分类号： H05B6/06

CPC分类号： H05B6/062

摘要： An induction heater having a safety function of lowering or stopping the heating power when an object to be heated moves, the safety function hardly interfering with the cooking activities of a user is provided. The induction heater of the present invention comprises an induction heating coil, an inverter circuit, an output detection section for detecting the magnitude of the inverter circuit, a control section, a setting input section for setting a target output, a first movement detection section, and a storage section for storing a control value before the first movement detection section detects a movement of an object to be heated. The control section has a reach control mode where the output of the inverter circuit is gradually increased from a low output to a target output, a stable control mode where control is exercised so that the output of the inverter circuit agrees with the target output, and a first output mode where a control value derived from the control value stored in the storage section is output, and when the first movement detection section detects a movement of the object, the control section shifts to the first output mode.

摘要翻译： 提供一种当被加热物体移动时具有降低或停止加热功率的安全功能的感应加热器，其安全功能几乎不干扰用户的烹饪活动。 本发明的感应加热器包括感应加热线圈，逆变器电路，检测逆变器电路的大小的输出检测部，控制部，用于设定目标输出的设定输入部，第一移动检测部， 以及存储部，用于在第一移动检测部检测到待加热物体的移动之前存储控制值。 控制部具有到低速控制模式，其中逆变器电路的输出从低输出逐渐增加到目标输出，执行控制的稳定控制模式，使得逆变器电路的输出与目标输出一致，以及 输出从存储在存储部中的控制值导出的控制值的第一输出模式，并且当第一移动检测部检测到物体的移动时，控制部转移到第一输出模式。

公开(公告)号：US06812440B2

公开(公告)日：2004-11-02

申请号：US10483791

申请日：2004-05-17

申请人： Izuo Hirota ,  Atsushi Fujita ,  Takahiro Miyauchi ,  Yuji Fujii ,  Akira Kataoka ,  Koji Niiyama

发明人： Izuo Hirota ,  Atsushi Fujita ,  Takahiro Miyauchi ,  Yuji Fujii ,  Akira Kataoka ,  Koji Niiyama

IPC分类号： H05B606

CPC分类号： H05B6/062 ,  H05B6/04

摘要： An induction heating device prevents an object to be heated from being displaced and buoyed from a mounting surface due to an mutual action of repulsive forces between the object to be heated and an induction heating coil. The induction heating device includes a source-current detector for detecting a source current input to a high-frequency inverter including the induction heating coil and an inverter circuit, a source-current change detector for measuring a change against time of a magnitude of the source current to detect a displacement and buoying of the object to be heated, such as a cooking pot, and a change examining unit. The controller controls an output of the high-frequency inverter in response to a detection result of the change examining unit. The induction heating device prevents the cooking pot from being displaced and buoyed even if the pot is not touched by a user at startup of heating or during the heating operation, and is inexpensive and safe.

摘要翻译： 感应加热装置由于被加热物和感应加热线圈之间的排斥力的相互作用，防止被加热物从安装面移位和浮起。 感应加热装置包括：源电流检测器，用于检测输入到包括感应加热线圈和反相器电路的高频逆变器的源电流;源电流变化检测器，用于测量源的幅度随时间的变化; 用于检测待烹饪物体的位移和浮动的电流，例如烹饪锅和变化检查单元。 控制器响应于变化检查单元的检测结果控制高频逆变器的输出。 感应加热装置即使在启动加热或加热操作期间用户没有接触到锅并且便宜且安全的情况下，烹饪锅也不会移动和浮起。

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。