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公开(公告)号：EP3952104A1
公开(公告)日：2022-02-09
申请号：EP19920711.9
申请日：2019-03-28
IPC分类号： H02P27/08
摘要： A motor driving apparatus (2) includes: an inverter (11) including a leg (5A) and a leg (5B) connected in parallel to a battery (10), the leg (5A) including switching elements (51, 52) connected in series to each other, the leg (5B) including switching elements (53, 54) connected in series to each other, and the inverter (11) converting a direct-current power supplied from the battery (10), into an alternating-current power; a shunt resistor (55) disposed on a path between the inverter (11) and the battery (10); and a control unit (25) controlling, in a case of using a two-sided PWM mode, the switching elements (51 to 54) such that current flows in the shunt resistor (55) within a time period between a first timing at which one switching element of a pair of switching elements is turned on and a second timing at which the other switching element of that pair is turned on, the pair of switching elements having a smaller one of a total value of individual on-times of a pair of the switching elements (51, 54) and a total value of individual on-times of a pair of the switching elements (52, 53).
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公开(公告)号：EP3940928A1
公开(公告)日：2022-01-19
申请号：EP19919048.9
申请日：2019-03-11
发明人： ASO, Hiroki , TSUCHIDA, Kazuchika , TAKAYAMA, Yuji , MATSUO, Haruka , HAMAZAKI, Mitsumasa , TERAMOTO, Masaya
IPC分类号： H02K5/16
摘要： A motor includes a shaft, a rotor attached to the shaft, a stator surrounding the rotor, a frame housing the stator, a first bearing and a second bearing attached to the frame via an insulating portion and located on one side of the rotor in an axial direction of the shaft, the first bearing and the second bearing rotatably supporting the shaft, a spacer attached to the frame and located between the first bearing and the second bearing in the axial direction, a washer disposed between the first bearing and the spacer in the axial direction and having insulating property, a preload member disposed between the spacer and the second bearing in the axial direction, and an insulating member disposed between the preload member and the second bearing in the axial direction or between the preload member and the spacer in the axial direction.
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公开(公告)号：EP4068618A1
公开(公告)日：2022-10-05
申请号：EP19954670.6
申请日：2019-11-29
IPC分类号： H02P27/06
摘要： A motor driver (2) includes an inverter (11) including a leg (5A) including switching elements (51, 52) connected in series, and a leg (5B) including switching elements (53, 54) connected in series, in which the leg (5A) and the leg (5B) are connected in parallel with a battery (10), to convert direct-current power supplied from the battery (10) into alternating-current power, and a shunt resistor (55) disposed on a path between the inverter (11) and the battery (10). The motor driver (2) controls conduction of the first to fourth switching elements so that the waveform of detection values of the shunt resistor (55) correspond to a pulsed waveform sequence. As a result of this control, a first pulse, a second pulse having the same polarity as the first pulse, and a pulse train of pulses appear in the pulsed waveform sequence, and the pulse width of at least one of the pulses of the pulse train is controlled to be larger than that of the second pulse.
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公开(公告)号：EP4068617A1
公开(公告)日：2022-10-05
申请号：EP19954027.9
申请日：2019-11-29
IPC分类号： H02P27/06
摘要： A motor driver (2) includes an inverter (11) including a leg (5A) including switching elements (51, 52) connected in series, and a leg (5B) including switching elements (53, 54) connected in series, in which the leg (5A) and the leg (5B) are connected in parallel with a battery (10), to convert direct-current power supplied from the battery (10) into alternating-current power, and a shunt resistor (55) disposed on a path between the inverter (11) and the battery (10). The motor driver (2) controls conduction of the switching elements (51 to 54) so that the waveform of detection values of the shunt resistor (55) corresponds to a pulse train of a plurality of pulses. As a result of the control, a current change rate in a top section of each of the pulses in a period during which the polarity of the motor current flowing to the single-phase motor (12) remains the same changes exhibiting a tendency to decrease once and increase thereafter.
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公开(公告)号：EP3168974A1
公开(公告)日：2017-05-17
申请号：EP14897183.1
申请日：2014-07-08
IPC分类号： H02M7/06
CPC分类号： H02M7/06 , H02M1/12 , H02M1/42 , H02M1/4208 , H02M1/4225 , H02M1/44 , H02M7/217 , H02M2001/0009 , H02M2001/0025 , H02M2001/4283
摘要： A power conversion device (100) includes a rectifier circuit (3) that converts an AC power from an AC power supply (1), into a DC power, a short-circuit unit (30) that short-circuits the AC power supply (1) via a reactor (2) connected between the AC power supply (1) and the rectifier circuit (3), a control unit (20) that generates a plurality of drive signals (Sa) to control the short-circuit unit (30) in a half cycle of the AC power supply (1), and a smoothing capacitor (4). The control unit (20) stepwise varies threshold values that limit a value of a power-supply current of the AC power supply (1), in an on-section or an off-section of the plurality of drive signals (Sa).
摘要翻译： 电力转换装置（100）具备：将来自交流电源（1）的交流电力转换为直流电力的整流电路（3）;使交流电源（3）短路的短路部（30） （1）与所述整流电路（3）之间连接的电抗器（2）;控制单元（20），其生成多个驱动信号（Sa）以控制所述短路单元 ）在交流电源（1）的半周期中，以及平滑电容器（4）。 控制单元（20）逐步地改变在多个驱动信号（Sa）的接通部分或截止部分中限制AC电源（1）的电源电流的值的阈值。
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公开(公告)号：EP3954903A1
公开(公告)日：2022-02-16
申请号：EP19924345.2
申请日：2019-04-11
摘要： Included are: a blower motor unit (240) that includes a blade (230) and a single-phase motor (220) having the blade (230) attached to its rotor (221); a substrate (210) mounted with a motor controller that controls driving of the single-phase motor (220) and includes an inverter that outputs alternating-current power to the single-phase motor (220); and a housing where the blower motor unit (240) and the substrate (210) are disposed. The substrate (210) is disposed in a position where the substrate (210) is cooled down directly or indirectly by wind that the blower motor unit (240) generates.
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公开(公告)号：EP3203626B1
公开(公告)日：2020-11-25
申请号：EP14903091.8
申请日：2014-09-30
发明人： YAMAKAWA, Takashi , ARISAWA, Koichi , TAKAYAMA, Yuji , UMEHARA, Shigeo , HIGASHIKAWA, Tomomi , TANIKAWA, Makoto
IPC分类号： H02M1/42
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公开(公告)号：EP3203626A1
公开(公告)日：2017-08-09
申请号：EP14903091.8
申请日：2014-09-30
发明人： YAMAKAWA, Takashi , ARISAWA, Koichi , TAKAYAMA, Yuji , UMEHARA, Shigeo , HIGASHIKAWA, Tomomi , TANIKAWA, Makoto
IPC分类号： H02M7/12
CPC分类号： H02M7/06 , H02M1/08 , H02M1/12 , H02M1/42 , H02M1/4225 , H02M2001/0009 , H02M2001/0048
摘要： A power converting apparatus (100) includes a rectifier (300) that converts alternating-current power from an alternating-current power supply (1) into direct-current power, a short-circuit unit (30) that short-circuits the alternating-current power supply (1) via a reactor (2), and a control unit (20) that controls a short-circuit operation of the short-circuit unit (30). The control unit (20) changes the number of times of the short-circuit operation during a half cycle of the alternating-current power supply (1) on the basis of a load condition and sets a period from a start to an end of the short-circuit operation during the half cycle of the alternating-current power supply (1) after the change of the number of times of the short-circuit operation to be different from a period from a start to an end of the short-circuit operation during the half cycle of the alternating-current power supply (1) before the change of the number of times of the short-circuit operation.
摘要翻译： 本发明的电力变换装置（100）具备：将来自交流电源（1）的交流电力变换为直流电力的整流器（300）;短路部（30） 经由电抗器（2）向直流电源（1）供电，以及控制单元（20），其控制短路单元（30）的短路操作。 控制部（20）基于负载条件来变更交流电源（1）的半周期中的短路动作的次数，并设定从开始到结束的期间 在短路动作的次数变更后的交流电源（1）的半周期中的短路动作与短路动作的开始至结束的期间不同 在短路动作次数变更前的交流电源（1）的半周期期间。
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公开(公告)号：EP4329178A1
公开(公告)日：2024-02-28
申请号：EP21937799.1
申请日：2021-04-19
IPC分类号： H02M7/12
摘要： A power converting apparatus includes: a rectifier (20) that rectifies alternating-current power output from an alternating-current power supply (10); a capacitor (33) provided at an output end of the rectifier (20); a reactor (30) provided on a path from the alternating-current power supply (10) to the capacitor (33); a load (40) connected across the capacitor (33); and a control unit (45) that reduces a charging and discharging current of the capacitor (33) by controlling an operation state of the load (40) such that power pulsation occurs in power to be consumed by the load (40), wherein a range of an inductance value of the reactor (30) is defined by use of a maximum value of an output voltage of the rectifier (20), a minimum value of the output voltage of the rectifier (20), a direct-current component of output power of the load (40), a number of phases of the alternating-current power supply (10), and an angular frequency of the alternating-current power supply (10) .
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公开(公告)号：EP3952103A1
公开(公告)日：2022-02-09
申请号：EP19920791.1
申请日：2019-03-28
IPC分类号： H02P27/06
摘要： A motor driving apparatus (2) includes: an inverter (11) including switching elements (51 to 54), converting a direct-current power supplied from a battery (10) into an alternating-current power, and supplying the alternating-current power to a single-phase motor (12); a first current detection unit (55a, 22) detecting current flowing through a leg (5A) including a switching element (51) and a switching element (52) connected in series to each other; a second current detection unit (55b, 22) detecting current flowing through a leg (5B) including a switching element (53) and a switching element (54) connected in series to each other; and a control unit (25) controlling the switching elements (51 to 54) such that a first time period and a second time period are continuous, a non-pulse current flowing through a detector (55a) of the first current detection unit during the first time period, a non-pulse current flowing through a detector (55b) of the second current detection unit during the second time period.
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