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公开(公告)号：US12027997B2
公开(公告)日：2024-07-02
申请号：US17417543
申请日：2019-12-24
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hiroyuki Miyake , Kosaku Adachi
IPC: H02M7/538 , F25B49/02 , H02M7/5387
CPC classification number: H02M7/53873 , F25B49/025 , F25B2600/021
Abstract: Provided is an inverter for reducing electric power consumption and noise. The inverter comprises: a driving unit including three switching elements included in an upper arm and connected in a three-phase bridge configuration and three switching elements included in a lower arm and connected in a three-phase bridge configuration, and converting input direct current power into three-phase alternating current power and then outputting the alternating current power to a three-phase load; and at least one processor for maintaining one of the three switching elements, which are included in the upper arm, in an on-state in a first period, maintaining one of the three switching elements, which are included in the lower arm, in an on-state in a second period, and driving the driving unit in a two-phase modulation method by alternately repeating the first period and the second period, wherein the at least one processor turns on all of the three switching elements at a crest of a carrier wave in the first period, and the at least one processor turns off all of the three switching elements at a crest of a carrier wave in the second period.
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公开(公告)号：US11329594B2
公开(公告)日：2022-05-10
申请号：US17034641
申请日：2020-09-28
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hiroyuki Miyake , Kosaku Adachi , Yoji Imahori
IPC: H02P27/08 , H02M1/12 , H02M7/5395
Abstract: An apparatus that reduces leakage current and noise in various environments. The apparatus includes a motor, an inverter to supply power to the motor and a plurality of switching elements configured to convert input DC power into three-phase AC power, and a processor to control the plurality of switching elements. The processor generates a carrier, obtains a rising and falling edge timing of a PWM control signal of each phase based on superposition of a zero phase voltage, and drives a motor by shifting the PWM control signal of each phase to allow a rising edge timing and a falling edge timing of a PWM control signal of one phase among the PWM control signal of the each phase to be different from a rising edge timing and a falling edge timing of a PWM control signal of other phase among the PWM control signal of the each phase.
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公开(公告)号：US10541539B1
公开(公告)日：2020-01-21
申请号：US15524994
申请日：2015-08-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hiroyuki Miyake , Seisaku Oosako , Masaki Ono , Yasuyuki Yamada , Yuichi Takeda
Abstract: A converter includes a converter circuit including a rectifying section to rectify an alternating current (AC) voltage and a smoothing section to smooth a direct current (DC) voltage rectified by the rectifying section, a diagnostic device configured to diagnose an abnormality of the converter circuit, an inrush current preventing section configured to prevent inrush current from being supplied to the smoothing section, and a switching section configured to supply the AC voltage to the converter circuit through a path different from a voltage supply path of the inrush current preventing section, wherein the diagnostic device determines an abnormal region of the converter circuit by controlling the inrush current preventing section and the switching section.
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公开(公告)号：US10753031B2
公开(公告)日：2020-08-25
申请号：US15746802
申请日：2016-07-08
Applicant: Samsung Electronics Co., Ltd
Inventor： Hiroyuki Miyake , Yukinori Nakagawa , Kenji Kitajima , Toshihiro Kamii , Hidekazu Funakoshi , Nobuharu Nishikoori , Yasumasa Nagasaki , Takehiro Nakanishi , Hiroshi Katsumoto , Minoru Yoshida , Yasuyuki Sonoda , Masaki Oshige , Tomoyuki Okuno , Katsuyuki Shimakage , Hiroshi Wanatabe , Yuji Akita , Yoshinori Takashima
Abstract: Provided is a washing machine motor capable of efficiently generating torque by improving a winding factor of coils with a relatively simple configuration. The washing machine motor (12) has an outer rotor (20), an inner rotor (30), and a stator (60). The outer rotor (20) and the inner rotor (30) share coils (63) of the stator (60), and a composite current is supplied to the coils (63) such that the outer rotor (20) and the inner rotor (30) are independently driven. The outer rotor (20) has forty eight outer magnets (24) arranged such that the N and S poles thereof are continuously and alternately aligned in the circumferential direction thereof. The inner rotor (30) has forty-two inner magnets (34) arranged such that the N and S poles thereof are continuously and alternately aligned in the circumferential direction thereof. The stator (60) has thirty-six I-shaped cores (61) and the coils (63).
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Patent Agency Ranking
公开(公告)号：US20200044457A1
公开(公告)日：2020-02-06
申请号：US15524994
申请日：2015-08-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hiroyuki Miyake , Seisaku Oosako , Masaki Ono , Yasuyuki Yamada , Yuichi Takeda
IPC: H02J5/00
Abstract: A converter includes a converter circuit including a rectifying section to rectify an alternating current (AC) voltage and a smoothing section to smooth a direct current (DC) voltage rectified by the rectifying section, a diagnostic device configured to diagnose an abnormality of the converter circuit, an inrush current preventing section configured to prevent inrush current from being supplied to the smoothing section, and a switching section configured to supply the AC voltage to the converter circuit through a path different from a voltage supply path of the inrush current preventing section, wherein the diagnostic device determines an abnormal region of the converter circuit by controlling the inrush current preventing section and the switching section.
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公开(公告)号：US20190032266A1
公开(公告)日：2019-01-31
申请号：US15881584
申请日：2018-01-26
Applicant: Samsung Electronics Co., Ltd
Inventor： Hiroyuki Miyake , Hidekazu Funakoshi , Hiroshi Katsumoto , Kenji Kitajima , Masaki Oshige , Nakagawa Yukinori , Tomonori Ueno , Yasumasa Nagasaki , Yasuyuki Sonoda
Abstract: A motor has a two rotors which are independently operated using a single inverter and without being supplied with a complex current. Further the motor is capable of shifting a rotation direction of each of two rotors by performing a magnetizing operation one time and reversing polarities of the shifting magnets when a mode of the motor is shifted from a synchronous mode in which the first rotor and the second rotor rotate in the same direction to a counter mode in which the first rotor and the second rotor rotate in opposite directions, and shifting the mode of the motor to the counter mode while the magnetizing operation is performed one time times and relative positions of the first rotor and the second rotor are changed when the first rotor and the second rotor inertially rotate in the synchronous mode.
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公开(公告)号：US12006615B2
公开(公告)日：2024-06-11
申请号：US17340577
申请日：2021-06-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kosaku Adachi , Hiroyuki Miyake
CPC classification number: D06F34/08 , D06F34/04 , D06F34/06 , H02P27/085 , H02P2209/13
Abstract: A washing machine is provided. The washing machine includes an inner tub, a motor connected to the inner tub through a rotating shaft, an inverter circuit operatively connected to the motor and comprising three pairs of bridged switching elements, and at least one processor configured to provide a modulation signal to the inverter circuit to turn on or off the three pairs of bridged switching elements so as to convert DC power into AC power. The at least one processor is further configured to provide the modulation signal to two pairs of switching elements among the three pairs of bridged switching elements for a first time period in a first mode, provide the modulation signal to the three pairs of bridged switching elements for a second time period in a second mode, ad alternately perform the first mode and the second mode.
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公开(公告)号：US10927491B2
公开(公告)日：2021-02-23
申请号：US15881584
申请日：2018-01-26
Applicant: Samsung Electronics Co., Ltd
Inventor： Hiroyuki Miyake , Hidekazu Funakoshi , Hiroshi Katsumoto , Kenji Kitajima , Masaki Oshige , Nakagawa Yukinori , Tomonori Ueno , Yasumasa Nagasaki , Yasuyuki Sonoda
IPC: B65H77/00 , H02P1/54 , D06F37/30 , H02K21/12 , H02K7/14 , H02P6/08 , H02K11/215 , H02P6/30 , H02K1/16 , H02K1/27 , H02K16/02 , H02K21/16 , H02K21/22 , D06F37/40 , D06F33/00
Abstract: A motor has a two rotors which are independently operated using a single inverter and without being supplied with a complex current. Further the motor is capable of shifting a rotation direction of each of two rotors by performing a magnetizing operation one time and reversing polarities of the shifting magnets when a mode of the motor is shifted from a synchronous mode in which the first rotor and the second rotor rotate in the same direction to a counter mode in which the first rotor and the second rotor rotate in opposite directions, and shifting the mode of the motor to the counter mode while the magnetizing operation is performed one time times and relative positions of the first rotor and the second rotor are changed when the first rotor and the second rotor inertially rotate in the synchronous mode.
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公开(公告)号：US11299843B2
公开(公告)日：2022-04-12
申请号：US16591563
申请日：2019-10-02
Applicant: Samsung Electronics Co., Ltd
Inventor： Tomoyuki Kanagawa , Hiroyuki Miyake , Shin Kagami
Abstract: In any type of washing machine, an amount of laundry introduced into the washing machine may be measured in a short time with high accuracy. A washing machine includes a rotational spin tub into which laundry is introduced; a driving unit including a motor for rotating the spin tub; and at least one processor configured to control the driving unit to rotate the spin tub at first rotational speed, control the driving unit to rotate the spin tub at second rotational speed, and identify weight of the laundry based on acceleration at the time of changing of rotational speed of the spin tub from the first rotational speed to the second rotational speed and the second rotational speed.
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