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公开(公告)号：US10309392B2
公开(公告)日：2019-06-04
申请号：US15335800
申请日：2016-10-27
申请人： LG ELECTRONICS INC.
发明人： Jongyoon Choi , Sungjin Lim , Nayi Ryu , Chaehong Lim , Seunggeun Baek , Hyeongseok Kim
IPC分类号： F04B49/12 , F04B35/04 , F04B49/06 , F04B53/12 , F04B53/16 , F04B39/00 , F04B39/12 , F04B49/14
摘要： A linear compressor and a method for controlling a compressor are provided. The compressor may include a piston that reciprocates within a cylinder, a linear motor that supplies a driving force to the piston, a discharge device through which a refrigerant compressed in the cylinder by the reciprocating motion of the piston is discharged, a pressure changing device that changes a variation rate of pressure applied to the piston before the piston reaches a virtual discharge surface (VDS) during the reciprocating motion, to prevent collision between the piston and the discharge device. The virtual discharge surface may be formed on at least a portion of the discharge device facing a compression space within the cylinder.
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公开(公告)号：US10436191B2
公开(公告)日：2019-10-08
申请号：US15362053
申请日：2016-11-28
申请人： LG Electronics Inc.
发明人： Nayi Ryu , Sungjin Lim , Kyoungseok Kang
摘要： Disclosed is a compressor for use with an apparatus having a refrigeration cycle where the compressor includes a piston which reciprocates in a cylinder; a linear motor configured to provide a driving force to move the piston; a sensor configured to sense a motor current of the linear motor; and a compressor controller configured to detect information related to a load of the apparatus, in a separated manner from a controller which controls a body of the apparatus, wherein the compressor controller calculates a phase difference between a stroke of the piston and the sensed motor current, and wherein the compressor controller compares the calculated phase difference with a reference phase difference, and controls a driving of the linear motor in correspondence to the detected load, according to a result of the comparison.
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3.发明授权公开(公告)号：US09509645B2
公开(公告)日：2016-11-29
申请号：US14142031
申请日：2013-12-27
申请人： LG ELECTRONICS INC.
发明人： Sungjin Lim
IPC分类号： H04L12/58 , G06F3/0488
CPC分类号： H04L51/066 , G06F3/0488 , H04L51/18
摘要： A mobile terminal can include a wireless communication unit for transceiving messages with another terminal, and a touchscreen for displaying the messages in an order in which the messages were transceived. Also, the mobile terminal can include a controller for receiving a selection of a first message displayed at a first position among the transceived messages, moving the selected first message to a different position on the touchscreen of mobile terminal such that the transceived messages are displayed in an order different from the order in which they were transceived, and transmitting a message rearrangement command to the other terminal for rearranging messages displayed on a touchscreen of the other terminal in an order different from the order in which they were transceived.
摘要翻译： 移动终端可以包括用于与另一终端收发消息的无线通信单元，以及用于以消息被收发的顺序显示消息的触摸屏。 此外，移动终端可以包括控制器，用于接收在收发消息中的第一位置处显示的第一消息的选择，将所选择的第一消息移动到移动终端的触摸屏上的不同位置，使得收发消息被显示在 与其收发的顺序不同的顺序，以及向另一终端发送消息重排命令，用于以与发送的顺序不同的顺序重新排列显示在另一终端的触摸屏上的消息。
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公开(公告)号：US11434886B2
公开(公告)日：2022-09-06
申请号：US16703491
申请日：2019-12-04
申请人： LG Electronics Inc.
发明人： Daegeun Park , Nayi Ryu , Sungjin Lim
摘要： A linear compressor includes, a cylinder, a piston configured to reciprocate inside the cylinder, a motor configured to supply driving force to the piston, a detector configured to detect a motor current and a motor voltage that are applied to the motor, and a controller configured to estimate a stroke of the piston based on the motor current and the motor voltage and to determine a phase difference between the stroke and the motor current. The controller is configured to detect operation information of the linear compressor, determine whether to perform a resonance operation based on the operation information, and control operation of the motor to allow the phase difference to be within a preset phase range.
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公开(公告)号：US10982668B2
公开(公告)日：2021-04-20
申请号：US15857369
申请日：2017-12-28
申请人： LG Electronics Inc.
发明人： Sungjin Lim , Gyunam Kim , Nayi Ryu
摘要： Provided is a linear compressor capable of reducing noise and manufacturing cost. The linear compressor includes a piston reciprocating within a cylinder, a motor providing a driving force for movement of the piston, a sensing unit sensing a motor voltage and a motor current related to the motor, a discharge part installed at one end of the cylinder and adjusting discharge of a refrigerant compressed within the cylinder, and a controller detecting a load variation of the motor using at least one of the motor voltage and the motor current, calculating a compensation value related to a position of the piston each time a load variation of the motor is detected, and detecting an absolute position of the piston using the calculated compensation value.
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公开(公告)号：US20170152846A1
公开(公告)日：2017-06-01
申请号：US15362053
申请日：2016-11-28
申请人： LG Electronics Inc.
发明人： Nayi Ryu , Sungjin Lim , Kyoungseok Kang
CPC分类号： F04B49/06 , F04B35/04 , F04B35/045 , F04B49/065 , F04B2201/0201 , F04B2203/0401 , F25B1/02 , F25B49/022 , F25B2400/073 , F25B2700/06 , F25B2700/151
摘要： Disclosed is a compressor for use with an apparatus having a refrigeration cycle where the compressor includes a piston which reciprocates in a cylinder; a linear motor configured to provide a driving force to move the piston; a sensor configured to sense a motor current of the linear motor; and a compressor controller configured to detect information related to a load of the apparatus, in a separated manner from a controller which controls a body of the apparatus, wherein the compressor controller calculates a phase difference between a stroke of the piston and the sensed motor current, and wherein the compressor controller compares the calculated phase difference with a reference phase difference, and controls a driving of the linear motor in correspondence to the detected load, according to a result of the comparison.
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公开(公告)号：US09995298B2
公开(公告)日：2018-06-12
申请号：US14948600
申请日：2015-11-23
申请人： LG ELECTRONICS INC.
发明人： Sungjin Lim , Daegeun Park , Youngwoong Song
IPC分类号： F04B49/06 , F04B49/20 , F04B35/04 , F04B53/14 , F04B51/00 , F04B49/12 , H02K33/06 , H02K7/14
CPC分类号： F04B49/20 , F04B35/04 , F04B35/045 , F04B49/06 , F04B49/12 , F04B51/00 , F04B53/14 , F04B2201/02 , F04B2203/0401 , F04B2203/0402 , H02K7/14 , H02K33/06
摘要： An apparatus and method for controlling a linear compressor and a linear compressor and a refrigerator having the same are provided. The apparatus may include a drive configured to drive the linear compressor based on a control signal, a detector configured to detect a motor current of the linear compressor, an asymmetric current generator configured to generate an asymmetric motor current by applying a current offset to the detected motor current, and a controller configured to generate the control signal based on the asymmetric motor current. The current offset may be changed based on a change in a position of a piston of the linear compressor.
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公开(公告)号：US09850890B2
公开(公告)日：2017-12-26
申请号：US14570550
申请日：2014-12-15
申请人： LG ELECTRONICS INC.
发明人： Sungjin Lim , Nayi Ryu , Sungho Park
CPC分类号： F04B49/06 , F04B35/04 , F04B35/045 , F04B49/065 , F04B2203/0401 , F04B2203/0402 , F25B31/023 , F25B49/022
摘要： The control module includes a drive circuitry that drives the linear compressor based on a control signal, a detector that detects a motor current and a motor voltage corresponding to a motor of the linear compressor, an asymmetric current generator that generates an asymmetric motor current by applying a current offset to the detected motor current, and a controller that generates the control signal based on the asymmetric motor current and the detected motor voltage. Such a control module may increase a maximum freezing capacity by appropriately (or optimally) designing (setting) an initial value of a piston in a driving area or an operation area (or a high-efficiency driving area) of a compressor by considering the efficiency aspect, and executing an asymmetric operation in a high-load driving area (or a high freezing capacity driving area).
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