Compressor and method for controlling the same

    公开(公告)号:US10436191B2

    公开(公告)日:2019-10-08

    申请号:US15362053

    申请日:2016-11-28

    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.

    Device and method for controlling linear compressor

    公开(公告)号:US09850890B2

    公开(公告)日:2017-12-26

    申请号:US14570550

    申请日:2014-12-15

    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).

    Linear compressor and method for controlling linear compressor

    公开(公告)号:US11313360B2

    公开(公告)日:2022-04-26

    申请号:US16545541

    申请日:2019-08-20

    摘要: A linear compressor according to the present disclosure may include a cylinder provided with at least one groove, a piston reciprocating within the cylinder, a motor configured to provide a driving force to move the piston within the cylinder, an inverter configured to perform a switching operation to transmit electric power to the motor, and a controller configured to receive temperature information from the electronic device and control the inverter to preheat the motor based on the received temperature information.

    Compressor and method for controlling the same

    公开(公告)号:US10408209B2

    公开(公告)日:2019-09-10

    申请号:US15361117

    申请日:2016-11-25

    发明人: Nayi Ryu Min Gu

    摘要: Disclosed are a compressor applied to a refrigerator not having a cycle matching function or a refrigerator not including a controller, and capable of controlling a driving of a linear motor by the compressor itself, and a method for controlling the same. The compressor installed at an apparatus including a refrigeration cycle 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 controls a driving of the linear motor in correspondence to the detected load, such that the calculated phase difference is within a range of a reference phase difference.

    Compressor driving apparatus and refrigerator including the same

    公开(公告)号:US11674728B2

    公开(公告)日:2023-06-13

    申请号:US16603123

    申请日:2018-04-04

    发明人: Nayi Ryu

    摘要: Described are a compressor driving apparatus and a refrigerator including the same. The compressor driving apparatus includes: switching elements; an inverter; an output current detector for detecting an output current flowing through a motor; and an inverter controller for controlling the inverter. The inverter controller controls the piston so that one end of the piston is fixed at a first position spaced apart from the discharge unit at stroke of the piston during a first period, controls the piston to collide with the discharge unit when a change rate in an operation rate or a position error of the compressor is equal to or greater than a predetermined value, and controls the piston so that the one end of the piston is fixed at a second position spaced apart from the discharge unit at stroke of the piston during a second period after the collision of the piston.

    Linear compressor and method for controlling the same

    公开(公告)号:US11434886B2

    公开(公告)日:2022-09-06

    申请号:US16703491

    申请日:2019-12-04

    IPC分类号: F04B35/04 F04B17/04

    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.

    Linear compressor and method for controlling linear compressor

    公开(公告)号:US10982668B2

    公开(公告)日:2021-04-20

    申请号:US15857369

    申请日:2017-12-28

    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.