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    • 1. 发明专利
    • High voltage part potting structure and potting method of high voltage part
    • 高压部分的高压部分花键结构和花纹方法
    • JP2013235983A
    • 2013-11-21
    • JP2012107795
    • 2012-05-09
    • Mitsubishi Electric Corp三菱電機株式会社
    • SATO TAKUYAISHIHARA HIDEYASU
    • H01F27/32H01F30/00H01F41/12
    • PROBLEM TO BE SOLVED: To provide a high voltage part potting structure that inhibits the occurrence and development of cracks in a potting material (a resin), easily prevents the insulation deterioration, and is suitable for a case that potting is conducted not for each terminal but for an entire circuit at one time, and to provide a potting method of the high voltage part.SOLUTION: A high voltage part potting structure includes: a transformer 1; a substrate 2; a chassis 5 supporting the transformer 1 and the substrate 2; and a potting material 6 filling areas around the transformer 1 and the substrate 2 and sealing the transformer 1, the substrate 2, and a nonwoven cloth (one of a first nonwoven cloth 3, a second nonwoven cloth 4, a third nonwoven cloth 7, a nonwoven cloth piece 8).
    • 要解决的问题:为了提供抑制灌封材料(树脂)中的裂纹的发生和发展的高压部分灌封结构,容易防止绝缘劣化,并且适用于不对每个端子进行灌封的情况 但是对于整个电路,同时提供高压部分的灌封方法。解决方案:高压部分灌封结构包括:变压器1; 基板2; 支撑变压器1和基板2的底盘5; 以及灌封材料6,填充变压器1和基板2周围的区域,并密封变压器1,基板2和无纺布(第一无纺布3,第二无纺布4,第三无纺布7, 无纺布8)。
    • 2. 发明专利
    • Induction heating cooker
    • 感应加热烹饪机
    • JP2013222619A
    • 2013-10-28
    • JP2012093959
    • 2012-04-17
    • Mitsubishi Electric Corp三菱電機株式会社Mitsubishi Electric Home Appliance Co Ltd三菱電機ホーム機器株式会社
    • FUMIYA JUNKURIKI YUSUKESATO TAKUYA
    • H05B6/12
    • PROBLEM TO BE SOLVED: To provide an induction heating cooker which can successfully protect a switching element and the like from a current due to a lead phase.SOLUTION: An induction heating cooker including DC generation circuits 1, 2 for converting AC power to DC power, an inverter 3 for converting direct currents of the DC generation circuits 1, 2 to high-frequency currents by driving switching elements 3a, 3b, and a heating coil 4 and a resonance capacitor 5 which are connected to output terminals of the inverter 3 and which form a resonance circuit, comprises: element current detection means 7 for detecting a current flowing through one of the switching elements 3a, 3b; short-circuit current detection means 8 for detecting a short-circuit current flowing when the switching elements 3a, 3b are concurrently short-circuited; and control means 9 for controlling an output of the inverter 3 by outputting a drive signal to the inverter 3 depending on the detection signals from the element current detection means 7 and the short-circuit current detection means 8.
    • 要解决的问题:提供一种能够成功地保护开关元件等由于引线电流而导致的电流的感应加热烹调器。解决方案:一种感应加热烹调器,包括用于将交流电力转换为直流电力的直流发电电路1,2 ,用于通过驱动与逆变器3的输出端子连接的开关元件3a,3b,加热线圈4和谐振电容器5将直流发电电路1,2的直流电流转换为高频电流的逆变器3,以及 其形成谐振电路,包括:元件电流检测装置7,用于检测流过开关元件3a,3b中的一个的电流; 用于检测当开关元件3a,3b同时短路时流动的短路电流的短路电流检测装置8; 以及控制装置9,用于根据来自元件电流检测装置7和短路电流检测装置8的检测信号向逆变器3输出驱动信号来控制反相器3的输出。
    • 3. 发明专利
    • Induction heating cooker
    • 感应加热烹饪机
    • JP2012049003A
    • 2012-03-08
    • JP2010190446
    • 2010-08-27
    • Mitsubishi Electric CorpMitsubishi Electric Home Appliance Co Ltd三菱電機ホーム機器株式会社三菱電機株式会社
    • NAKAJIMA KOJIITO MASASHIGESATO TAKUYA
    • H05B6/12
    • PROBLEM TO BE SOLVED: To provide an induction heating cooker which substantially inhibit or eliminate a beat noise due to not only a direct flux interference but also an indirect flux interference even when a plurality of heating coils are driven by high frequency currents having different frequencies from one another.SOLUTION: An induction heating cooker comprises first and second heating coils, first and second drive circuit boards respectively mounted with first and second drive circuits supplying high frequency currents to the first and second heating coils, and a power source circuit board 30 provided between and in parallel with the first and second drive circuit boards and vertical to the first and second heating coils. The power source circuit board 30 includes first and second conductive layers provided on at least a partial region facing the first and second drive circuits.
    • 要解决的问题:提供一种感应加热烹调器,即使当多个加热线圈由具有高频电流的高频电流驱动时,即使不仅由于直接的磁通干扰而导致的节拍噪声,也产生间接的磁通干扰,因此, 不同的频率彼此。 解决方案:感应加热烹调器包括第一和第二加热线圈,第一和第二驱动电路板分别安装有向第一和第二加热线圈提供高频电流的第一和第二驱动电路,以及提供的电源电路板30 在第一和第二驱动电路板之间并与第一和第二驱动电路板并联并且垂直于第一和第二加热线圈。 电源电路板30包括设置在面向第一和第二驱动电路的至少部分区域上的第一和第二导电层。 版权所有(C)2012,JPO&INPIT
    • 4. 发明专利
    • Induction heating cooker
    • 感应加热烹饪机
    • JP2014053116A
    • 2014-03-20
    • JP2012195730
    • 2012-09-06
    • Mitsubishi Electric Corp三菱電機株式会社Mitsubishi Electric Home Appliance Co Ltd三菱電機ホーム機器株式会社
    • SATO TAKUYA
    • H05B6/12
    • PROBLEM TO BE SOLVED: To provide an induction heating cooker which can simplify a cooling structure of a switching element and which has improved safety while achieving downsizing of a substrate.SOLUTION: An induction heating cooker comprises: a top plate on which a cooking container as a heated object is placed; induction heating means for heating the heated object by flowing of a high-frequency current; an inverter substrate 16a on which an inverter circuit for supplying the high-frequency current to the induction heating means is provided; a body 1 for including the induction heating means and the inverter substrate; and blowing means 19 provided in the body for cooling the induction heating means and the inverter substrate. The blowing means includes a fan case and a blower fan 20 for coercively blowing cooling air to an internal space of the fan case. Switching elements 17a, 17b connected to the inverter substrate to constitute the inverter circuit are attached so as to be thermally coupled to the fan case.
    • 要解决的问题:提供一种能够简化开关元件的冷却结构并且在实现基板的小型化的同时提高安全性的感应加热烹调器。解决方案:感应加热烹调器包括:顶板,烹饪容器 放置加热物体; 感应加热装置,用于通过高频电流的流动来加热受热物体; 设置有用于向感应加热装置供给高频电流的逆变器电路的反相器基板16a; 用于包括感应加热装置和逆变器基板的主体1; 以及设置在本体中用于冷却感应加热装置和逆变器基板的吹风装置19。 吹风装置包括风扇壳体和用于将冷却空气强制地吹送到风扇壳体的内部空间的鼓风机风扇20。 连接到逆变器基板以构成逆变器电路的开关元件17a,17b被安装成与风扇壳体热耦合。
    • 5. 发明专利
    • Induction heating cooker
    • 感应加热烹饪机
    • JP2012079581A
    • 2012-04-19
    • JP2010224832
    • 2010-10-04
    • Mitsubishi Electric CorpMitsubishi Electric Home Appliance Co Ltd三菱電機ホーム機器株式会社三菱電機株式会社
    • KITAKOMI TAKESHIKAWADA YUKIONAKAMURA HIROSHIGOTO HARUYOSATO TAKUYA
    • H05B6/12
    • H05B6/062H05B6/065H05B6/1272
    • PROBLEM TO BE SOLVED: To provide an induction heating cooker having a boiling over detection function and an operation mode selection function which enables even inexperienced users to use the induction heating cooker without anxiety.SOLUTION: An induction heating cooker comprises: a ring-shaped main heating coil MC provided on the lower side of a top plate 21; a plurality of flat-shaped secondary heating coils SC1 and SC2 arranged adjacent to both sides of the main heating coil; an inverter circuit which supplies induction heating power to these heating coils; an energization control circuit which controls output of the inverter circuit; a boiling over detection unit having electrodes 40 and 41 for boiling over detection; a switch for emergency stop of induction heating; and a plurality of light emitting units which indicates heating area by light. The presence of the switch for emergency stop is emphasized by light when heating has reached a stage where occurrence of boiling over is feared, and if boiling over occurs, it is notified by changing lighting state of the light emitting unit which is close to the area where the boiling over occurred.
    • 要解决的问题:提供一种具有沸腾检测功能和操作模式选择功能的感应加热烹调器,其使得即使没有经验的用户也能够不用担心地使用感应加热烹调器。 感应加热烹调器包括:设置在顶板21的下侧的环状主加热线圈MC; 与主加热线圈的两侧相邻配置的多个平面状的二次加热线圈SC1,SC2; 向这些加热线圈提供感应加热电力的逆变器电路; 控制逆变器电路的输出的通电控制电路; 沸腾检测单元,具有用于沸腾检测的电极40和41; 感应加热紧急停机开关; 以及多个指示加热区域的发光单元。 当加热已经到达发生沸腾的阶段时,光的紧急停止的存在被强调,并且如果发生沸腾,则通过改变靠近该区域的发光单元的点亮状态来通知 沸腾的地方发生了。 版权所有(C)2012,JPO&INPIT
    • 6. 发明专利
    • Induction heating cooker
    • 感应加热烹饪机
    • JP2014032791A
    • 2014-02-20
    • JP2012171622
    • 2012-08-02
    • Mitsubishi Electric Corp三菱電機株式会社Mitsubishi Electric Home Appliance Co Ltd三菱電機ホーム機器株式会社
    • SATO TAKUYA
    • H05B6/12
    • H05B6/062
    • PROBLEM TO BE SOLVED: To provide an induction heating cooker capable of suppressing costs and a component mounting area of a wiring board by driving an inverter circuit at a voltage of the same potential as a DC voltage for driving a control circuit.SOLUTION: An induction heating cooker comprises: a top plate that can mount a heated object; heating means arranged below the top plate, and performing induction heating of the heated object by being applied with a high-frequency current; an inverter circuit 35 supplying the high-frequency current to the heating means, and using a semiconductor element composed of a wide band gap semiconductor; a control circuit controlling the inverter circuit 35; and a transformation circuit 41 supplying a DC voltage to the inverter circuit and the control circuit. The DC voltage of the same potential generated by the transformation circuit 41 is supplied for driving the inverter circuit 35 and the control circuit 37, and a control signal path of the inverter circuit 35 and the control circuit 37 is directly connected.
    • 要解决的问题:提供一种能够通过以与用于驱动控制电路的DC电压相同的电位的电压驱动逆变器电路来抑制成本和成本安装面积的感应加热烹调器。解决方案:感应 加热烹调器包括:顶板,其可以安装加热物体; 设置在顶板下方的加热装置,通过施加高频电流来对被加热物进行感应加热; 向加热装置提供高频电流的逆变器电路35,以及使用由宽带隙半导体构成的半导体元件; 控制逆变器电路35的控制电路; 以及向逆变器电路和控制电路提供直流电压的变换电路41。 提供由变换电路41产生的相同电位的直流电压用于驱动逆变器电路35和控制电路37,逆变器电路35和控制电路37的控制信号路径直接连接。
    • 7. 发明专利
    • Voltage variable power supply circuit
    • 电压可变电源电路
    • JP2011182572A
    • 2011-09-15
    • JP2010045269
    • 2010-03-02
    • Mitsubishi Electric Corp三菱電機株式会社
    • NISHIMURA TAKUNORIISHIHARA HIDEYASUSATO TAKUYA
    • H02M3/28
    • PROBLEM TO BE SOLVED: To obtain a voltage variable power supply circuit, capable of lowering a voltage supplied to a load in a short time, without causing an increase of calorific power, and capable of enhancing the efficiency of power.
      SOLUTION: When changing the voltage V
      L supplied to the load 7 by installing a load voltage monitor circuit 8 which monitors the voltage V
      L supplied to the load 7 from a voltage-variable power supply 2, a voltage control circuit 9 indicates a set voltage V
      E indicating a voltage after the change to the voltage-variable power supply 2, discharges electric charges accumulated in a capacitor 6 until the voltage V
      L monitored by the load voltage monitor circuit 8 reaches the set voltage V
      E , and regenerates the electric charges to the primary side of the voltage-variable power supply 2.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了获得能够在短时间内降低供给到负载的电压的电压可变电源电路,而不引起发热量的增加,并且能够提高电力的效率。

      解决方案:通过安装负载电压监视电路8来改变提供给负载7的电压V SB> L ,负载电压监视电路8监视从负载7提供给负载7的电压V SB = 电压可变电源2,电压控制电路9表示指示电压变化电源2变化后的电压的设定电压V SB> E ,放电蓄积在电容器6中的电荷直到 由负载电压监视电路8监视的电压V SB> L 达到设定电压V SB> E ,并且将电荷重新生成到电压可变电源2的初级侧 版权所有(C)2011,JPO&INPIT

    • 9. 发明专利
    • 電源装置
    • 电源设备
    • JP2014212687A
    • 2014-11-13
    • JP2014075408
    • 2014-04-01
    • 三菱電機株式会社Mitsubishi Electric Corp
    • NISHIMURA TAKUNORISATO TAKUYA
    • H02M3/155
    • H02M3/15
    • 【課題】電源装置のリップル電圧を決められた上限値以下に制限した上で、スイッチング損失を従来よりも小さくする。【解決手段】可変のスイッチング周波数で入り切りされるスイッチング素子105と、スイッチング素子105の他端に接続されたインダクタンス107と、インダクタンス107の他端と入力端子のもう一方の端子の間に接続されたコンデンサ108と、コンデンサ108の両端の間の出力電圧に重畳されるリップル電圧を検出するリップル電圧検出部112と、コンデンサの温度を推測できる箇所で計測された計測温度に基づきスイッチング周波数の上限である上限周波数を決める上限周波数決定部111と、リップル電圧が決められた上限値であるリップル電圧上限値以下になるように上限周波数以下の範囲でスイッチング周波数を決めるスイッチング周波数制御部113とを備えた。【選択図】図1
    • 要解决的问题:减少比以前更低的开关损耗,同时限制电源装置的纹波电压低于或等于预定的上限值。解决方案:电源装置包括:开关元件105,其具有一个 端连接到输入端子的一个端子,并通过可变开关频率导通和截止; 连接到开关元件105的另一端的电感107; 连接在电感107的另一端和输入端的另一端之间的电容器108; 纹波电压检测单元112,检测叠加在电容器108的两端之间的输出电压上的纹波电压; 上限频率确定单元111基于在可以假设电容器的温度的地方测量的测量温度来确定作为开关频率的上限的上限频率; 以及切换频率控制部113,其确定在上限频率以下的范围内的切换频率,使得纹波电压低于或等于作为上限频率的纹波电压上限值, 极限值。