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公开(公告)号：US09386635B2
公开(公告)日：2016-07-05
申请号：US13643644
申请日：2011-06-10
CPC分类号： H05B6/062 , H05B6/1272 , Y02B40/126
摘要： The disclosed induction heating cooking device includes a boiling-over detection portion which is adapted to reduce heating output from an inverter to a pre-set value if the amount of change of a capacitance detected by a capacitance detection portion from a reference value (Vo) is equal to or more than an output reduction threshold value (ΔV2), and further is adapted to stop heating, if the amount of change is equal to or more than an output stop threshold value (ΔV3). In this case, the output stop threshold value is provided for each of the plurality of the electrodes, which can absorb impedance variations in the plurality of the electrodes formed through pattern printing using conductive films, thereby uniformizing their sensitivity to boiling over in any directions.
摘要翻译： 所公开的感应加热烹调装置包括一个沸腾检测部分，其适于将由电容检测部分检测的电容的变化量从参考值（Vo）减小到预设值， 如果变化量等于或大于输出停止阈值（＆Dgr; V3），则等于或大于输出降低阈值（＆Dgr; V2），并且还适于停止加热。 在这种情况下，为多个电极中的每个电极提供输出停止阈值，这可以吸收通过使用导电膜的图案印刷形成的多个电极中的阻抗变化，从而使其在任何方向上的沸腾敏感度均匀化。
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公开(公告)号：US09288846B2
公开(公告)日：2016-03-15
申请号：US13642450
申请日：2011-06-10
CPC分类号： H05B6/062
摘要： An induction heating cooker includes a boiling over detecting portion that reduces the heating output of an inverter to a predetermined value when a change amount of an electrostatic capacitance detected by a capacitance detecting portion with respect to a reference value is equal to or greater than a threshold value. The boiling over detecting portion stops a heating action or reduces the heating output to a third set value lower than a second set value when a change rate of the capacitance is equal to or greater than a predetermined change rate, and maintains the heating output at the second set value when the change rate of the capacitance is less than the predetermined change rate, during a boiling over determining period started from the time that the change amount of the capacitance with respect to the reference value is equal to or greater than the output reducing threshold value.
摘要翻译： 感应加热烹调器包括沸腾检测部分，当由电容检测部分检测到的相对于参考值的静电电容的变化量等于或大于阈值时，将逆变器的加热输出减小到预定值 值。 当电容的变化率等于或大于预定的变化率时，沸腾检测部分停止加热动作或将加热输出减小到低于第二设定值的第三设定值，并将加热输出保持在 在从电容变化量相对于基准值变为等于或大于输出降低的时间开始的沸腾过度确定期间内，当电容的变化率小于预定变化率时的第二设定值 阈值。
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公开(公告)号：US09462639B2
公开(公告)日：2016-10-04
申请号：US13636844
申请日：2011-06-10
CPC分类号： H05B6/062 , H05B6/1272 , Y02B40/126
摘要： An induction heating cooker includes an inverter for supplying a current to a heating coil, a control portion for driving the inverter, an electrostatic capacitance detecting portion for measuring electrostatic capacitance of a plurality of electrodes, and a boiling over detecting portion. The boiling over detecting portion reduces an output of the inverter from a first set value to a second set value after a sensed value of the electrostatic capacitance is within a first variation range (ΔV1) or more, and returns the output of the inverter to the first set value when a sensed value during a boiling over establishing period (T2) performed after the sensed value has reached the first variation range or more and falls within a second variation range (ΔV2).
摘要翻译： 感应加热烹调器包括用于向加热线圈提供电流的逆变器，用于驱动逆变器的控制部分，用于测量多个电极的静电电容的静电电容检测部分和沸腾检测部分。 在感测到的静电电容值处于第一变化范围（ΔV1）以上之后，沸腾检测部分将反相器的输出从第一设定值减小到第二设定值，并将反相器的输出返回到 在感测值达到第一变化范围以上并落入第二变化范围（ΔV2）之后，在沸腾建立期间（T2）内的感测值进行第一设定值。
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公开(公告)号：US20130037535A1
公开(公告)日：2013-02-14
申请号：US13642450
申请日：2011-06-10
CPC分类号： H05B6/062
摘要： It is an object of the present invention to provide a highly-reliable induction heating cooker capable of considerably reducing erroneous detection of boiling over of a cooking container generated at the time of cooking. The induction heating cooker includes a boiling over detecting portion to reduce a heating output of an inverter to a predetermined value when a change amount of electrostatic capacitance detected by an electrostatic capacitance detecting portion with respect to a reference value reaches an output reducing threshold value or more, and the boiling over detecting portion stops a heating action or reduces the heating output to a third set value lower than a second set value when a change rate of the detected electrostatic capacitance reaches a predetermined change rate or more, and maintains the heating output at the second set value when the change rate of the detected electrostatic capacitance is less than the predetermined change rate, during a boiling over determining period started from the time when the change amount of the detected electrostatic capacitance with respect to the reference value reaches the output reducing threshold value or more.
摘要翻译： 本发明的目的是提供一种高度可靠的感应加热烹调器，其能够显着地减少在烹饪时产生的烹饪容器的沸腾的错误检测。 感应加热烹调器包括沸腾检测部分，当由静电电容检测部分检测到的相对于参考值检测的静电电容的变化量达到输出降低阈值或更大时，将逆变器的加热输出减小到预定值 并且当检测到的静电电容的变化率达到预定变化率或更大时，沸腾检测部分停止加热动作或将加热输出减小到低于第二设定值的第三设定值，并将加热输出保持在 在从检测到的静电电容相对于基准值的变化量达到输出降低的时间开始的沸腾判定期间，当检测到的静电电容的变化率小于预定变化率时的第二设定值 阈值以上。
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公开(公告)号：US20130037536A1
公开(公告)日：2013-02-14
申请号：US13643644
申请日：2011-06-10
CPC分类号： H05B6/062 , H05B6/1272 , Y02B40/126
摘要： The disclosed induction heating cooking device includes a boiling-over detection portion which is adapted to reduce heating output from an inverter to a pre-set value if the amount of change of a capacitance detected by a capacitance detection portion from a reference value (Vo) is equal to or more than an output reduction threshold value (ΔV2), and further is adapted to stop heating, if the amount of change is equal to or more than an output stop threshold value (ΔV3). In this case, the output stop threshold value is provided for each of the plurality of the electrodes, which can absorb impedance variations in the plurality of the electrodes formed through pattern printing using conductive films, thereby uniformizing their sensitivity to boiling over in any directions.
摘要翻译： 所公开的感应加热烹调装置包括一个沸腾检测部分，其适于将由电容检测部分检测的电容的变化量从参考值（Vo）减小到预设值， 如果变化量等于或大于输出停止阈值（＆Dgr; V3），则等于或大于输出降低阈值（＆Dgr; V2），并且还适于停止加热。 在这种情况下，为多个电极中的每个电极提供输出停止阈值，这可以吸收通过使用导电膜的图案印刷形成的多个电极中的阻抗变化，从而使其在任何方向上的沸腾敏感度均匀化。
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公开(公告)号：US20130008891A1
公开(公告)日：2013-01-10
申请号：US13636844
申请日：2011-06-10
IPC分类号： H05B6/04
CPC分类号： H05B6/062 , H05B6/1272 , Y02B40/126
摘要： In order to provide an induction heating cooker capable of preventing a phenomenon that a drive circuit is stopped or a high-frequency current is reduced because boiling over is erroneously determined due to a fluctuation in electrostatic capacitance during cooking, the induction heating cooker includes an inverter for supplying a current to a heating coil, a control portion for driving the inverter, an electrostatic capacitance detecting portion for measuring electrostatic capacitance of a plurality of electrodes, and a boiling over detecting portion. The boiling over detecting portion reduces an output of the inverter from a first set value to a second set value after a sensed value of the electrostatic capacitance has reached a range of a first variation (ΔV1) or more, and returns the output of the inverter to the first set value when a sensed value during a boiling over establishing period (T2) performed after the sensed value has reached the first variation or more falls within a range of a second variation (ΔV2).
摘要翻译： 为了提供一种能够防止驱动电路停止的现象的感应加热炊具或由于烹调期间的静电电容的波动而由于煮沸而导致的高频电流被错误地确定的情况，所以感应加热炊具包括逆变器 用于向加热线圈提供电流，用于驱动逆变器的控制部分，用于测量多个电极的静电电容的静电电容检测部分和沸腾检测部分。 在感测到的静电电容值达到第一变化（＆Dgr; V1）以上的范围之后，沸腾检测部分将反相器的输出从第一设定值减小到第二设定值，并返回 当在感测值达到第一变化或更大之后执行在沸腾建立周期（T2）期间的感测值处于第二变化（＆Dgr; V2）的范围内时，逆变器达到第一设定值。
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公开(公告)号：US20130068757A1
公开(公告)日：2013-03-21
申请号：US13700676
申请日：2011-06-24
申请人： Hiroshi Fukuda , Takashi Takehira
发明人： Hiroshi Fukuda , Takashi Takehira
IPC分类号： H05B6/12
CPC分类号： H05B6/062
摘要： In an induction cooking device according to the present invention, a boiling-over detection portion is adapted to perform a heating-output suppression operation, on detecting boiling over, when the capacitances of electrodes have been changed by an amount equal to or more than a predetermined value. Further, the boiling-over detection portion is prevented from performing the heating-output suppression operation, if the boiling-over detection portion detects that the capacitances of the electrodes have been changed by an amount equal to or more than the predetermined value, due to the fact that the heating output of another heating coil in a heating area which is not subjected to boiling-over detection has been changed by an amount equal to or more than a predetermined change width.
摘要翻译： 在根据本发明的感应加热烹调装置中，沸腾检测部分适于进行加热输出抑制操作，当检测到沸腾时，当电极的电容已改变等于或大于 预定值。 此外，如果沸腾检测部分检测到电极的电容已经改变了等于或大于预定值的量，则防止煮沸检测部分执行加热输出抑制操作，这是由于 在不进行煮沸检测的加热区域中的另一个加热线圈的加热输出已经改变了等于或大于预定变化宽度的量的事实。
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公开(公告)号：US09265094B2
公开(公告)日：2016-02-16
申请号：US13700676
申请日：2011-06-24
申请人： Hiroshi Fukuda , Takashi Takehira
发明人： Hiroshi Fukuda , Takashi Takehira
CPC分类号： H05B6/062
摘要： In an induction cooking device according to the present invention, a boiling-over detection portion is adapted to perform a heating-output suppression operation, on detecting boiling over, when the capacitances of electrodes have been changed by an amount equal to or more than a predetermined value. Further, the boiling-over detection portion is prevented from performing the heating-output suppression operation, if the boiling-over detection portion detects that the capacitances of the electrodes have been changed by an amount equal to or more than the predetermined value, due to the fact that the heating output of another heating coil in a heating area which is not subjected to boiling-over detection has been changed by an amount equal to or more than a predetermined change width.
摘要翻译： 在根据本发明的感应加热烹调装置中，沸腾检测部分适于进行加热输出抑制操作，当检测到沸腾时，当电极的电容已改变等于或大于 预定值。 此外，如果沸腾检测部分检测到电极的电容已经改变了等于或大于预定值的量，则防止煮沸检测部分执行加热输出抑制操作，这是由于 在不进行煮沸检测的加热区域中的另一个加热线圈的加热输出已经改变了等于或大于预定变化宽度的量的事实。
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公开(公告)号：US20130334210A1
公开(公告)日：2013-12-19
申请号：US14002224
申请日：2012-09-07
申请人： Takashi Takehira , Yuji Fujii , Daisuke Sawada
发明人： Takashi Takehira , Yuji Fujii , Daisuke Sawada
IPC分类号： H05B6/06
CPC分类号： H05B6/065
摘要： An induction cooker comprises: first and second inverters [[(11a, 11b)]] each of which is connected in parallel to the smoothing capacitor and has a DC power supply converted to AC by first and second switching elements to supply high-frequency power to first and second heating coils [[(4a, 4b)]]; first and second oscillation circuits [[(7a, 7b)]] which supply a driving signal to the respective first and second switching elements; and a control unit [[(10)]] which controls driving of the first and second oscillation circuits. The control unit [[(10)]] controls the first and second oscillation circuits by alternately driving the first and second oscillation circuits and causes a switched-off side heating coil of the first and second heating coils to maintain low-power heating without causing the switched-off side heating coil of the first and second heating coils to stop heating each time the control unit switches the first and second oscillation circuits to drive.
摘要翻译： 一种电磁炉包括：第一和第二反相器[[（11a，11b）]]，其平行于平滑电容器并联，并且具有由第一和第二开关元件转换为AC的直流电源，以提供高频功率 第一和第二加热线圈[[（（4a，4b）]]; 第一和第二振荡电路[[（7a，7b）]]，其向相应的第一和第二开关元件提供驱动信号; 以及控制第一和第二振荡电路的驱动的控制单元[[（10）]]。 控制单元[[（10）]]通过交替驱动第一和第二振荡电路来控制第一和第二振荡电路，并使第一和第二加热线圈的关闭侧加热线圈保持低功率加热而不引起 第一和第二加热线圈的断开侧加热线圈，每当控制单元将第一和第二振荡电路切换到驱动时停止加热。
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