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1. 发明授权

US11719758B2 Load abnormality detecting circuit for inverter 有权
公开(公告)号：US11719758B2
公开(公告)日：2023-08-08
申请号：US16758147
申请日：2018-08-23
申请人： NETUREN CO., LTD.
发明人： Takahiko Kanai , Yue Yang
IPC分类号： G01R31/42 , H02M1/32 , H02M5/458
CPC分类号： G01R31/42 , H02M1/32 , H02M5/458
摘要： A load abnormality detecting circuit for an inverter to detect abnormality of a load during an operation of the inverter which has a self-arc-extinguishing element as a switching element and a phase synchronizing loop controlling an output frequency to be a resonance frequency of the load, the load abnormality detecting circuit includes a phase shift detection part that detects a phase shift between a gate voltage signal controlling ON/OFF of the self-arc-extinguishing element and an output current of the inverter which is applied to the load, and that sends a first abnormal load signal based on the phase shift.

2. 发明授权

US10138531B2 Induction hardening control system 有权
公开(公告)号：US10138531B2
公开(公告)日：2018-11-27
申请号：US14491353
申请日：2014-09-19
申请人： NETUREN CO., LTD.
发明人： Keisuke Ito , Yue Yang , Fumiaki Ikuta , Taichi Kitamura , Tetsuya Ono , Ken-ichi Hoshiba
IPC分类号： H05B6/10 , C21D11/00 , C21D1/10 , H05B6/06 , C21D1/42
摘要： An induction apparatus including a hardening control unit for controlling an induction hardening apparatus based on setup conditions data; a hardening monitoring unit that measures, as measurement data, the electric quantity in an electric circuit and that monitors an induction hardening status; and a data collecting unit that collects the data from various sensors in the induction hardening apparatus obtained when the induction hardening apparatus subjects the work to an induction hardening based on the setup conditions data outputted from the hardening control unit and that collects the measurement data from the hardening monitoring unit to store the collected data from the various sensors and the measurement data so that the collected data are associated to each other.

3. 发明申请

US20150034628A1 INDUCTION HARDENING CONTROL SYSTEM 审中-公开
标题翻译：感应硬化控制系统
公开(公告)号：US20150034628A1
公开(公告)日：2015-02-05
申请号：US14491353
申请日：2014-09-19
申请人： NETUREN CO., LTD.
发明人： Keisuke Ito , Yue Yang , Fumiaki Ikuta , Taichi Kitamura , Tetsuya Ono , Ken-ichi Hoshiba
IPC分类号： C21D11/00 , H05B6/06 , C21D1/10
CPC分类号： C21D11/00 , C21D1/10 , C21D1/42 , H05B6/06 , Y02P10/253
摘要： The present invention includes: a hardening control unit (70) for controlling an induction hardening apparatus (10, 10A) based on setup conditions data regarding the induction hardening apparatus (10, 10A); a hardening monitoring unit (20) that measures, as measurement data, the electric quantity in an electric circuit configured to include a high-frequency inverter (11), a capacitor (12), and a heating coil (14, 14A, 14B) and that monitors an induction hardening status; and a data collecting unit (80) that collects the data from various sensors in the induction hardening apparatus (10, 10A, 10B) obtained when the induction hardening apparatus (10) subjects the work (15, 15A, 15B) to an induction hardening based on the setup conditions data outputted from the hardening control unit (70) and that collects the measurement data from the hardening monitoring unit (20) to store the collected data from the various sensors and the measurement data so that the collected data from the various sensors and the measurement data are associated to each other.
摘要翻译：本发明包括：硬化控制单元，用于根据关于高频淬火设备（10,10A）的设置条件数据控制感应淬火设备（10,10A）; 测量包括高频逆变器（11），电容器（12）和加热线圈（14,14A，14B）的电路中的电量作为测量数据的硬化监测单元（20）并监测感应淬火状态; 以及数据收集单元（80），其收集来自所述感应淬火装置（10）使所述工件（15,15A，15B）进行感应淬火的高频淬火装置（10,10A，10B）中得到的各种传感器的数据基于从硬化控制单元（70）输出的设定条件数据，并且从硬化监视单元（20）收集测量数据，以存储来自各种传感器和测量数据的收集的数据，使得来自各种传感器和测量数据彼此相关联。

4. 发明授权

US11031881B2 Output current synthesizer and power supply apparatus 有权
公开(公告)号：US11031881B2
公开(公告)日：2021-06-08
申请号：US16645097
申请日：2018-08-23
申请人： NETUREN CO., LTD.
发明人： Takahiko Kanai , Yue Yang
IPC分类号： H02M7/493 , H02M7/537 , H01F27/28
摘要： An output current synthesizer that synthesizes output currents output from a plurality of power inverter circuits converting direct current power to alternating current power and outputs the synthesized output currents as synthesized current having a predetermined frequency, the output current synthesizer includes a pair of conductors which is provided with each of the power inverter circuits and to which the output currents of the power inverter circuits flow, a reactor which is provided on each of the pairs of conductors and generates magnetic flux corresponding to a difference between values of currents flowing to the pairs of conductors to reduce the difference between the values of currents, a pair of conductive members to which the pairs of conductors are connected in parallel, and a pair of output terminals which is provided on the pair of conductive members and output the synthesized currents.

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