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公开(公告)号：EP3388674A1
公开(公告)日：2018-10-17
申请号：EP18166913.6
申请日：2018-04-12
Applicant: LG Electronics Inc.
Inventor： LEE, Kangwook , KIM, Taekyoung , LEE, Byeongchul , KIM, Cheolhwan
CPC classification number: F04C18/0215 , F04C23/008 , F04C29/0057 , F04C29/0078 , F04C29/0085 , F04C29/026 , F04C29/12 , F04C2240/40
Abstract: Scroll compressor including: a casing (10); a drive motor (20) which is held in place within the casing (10) and has an internal flow passage and an external flow passage to pass through; a rotation shaft (50) which is combined with the drive motor (20) for rotation; a frame (31) that is provided under the drive motor (20) and through which the rotation shaft (50) passes for support; a first scroll (32) which is provided under the frame (31) and on whose one flank surface a first wrap (323) is formed; a second scroll (33) which is provided between the frame (31) and the first scroll (32), on which a second wrap (332) that is engaged with the first wrap (323) is formed, with which the rotation shaft (50) is eccentrically combined and which forms a compression chamber; and a flow passage separation unit (40) which separates a space between the drive motor (20) and the frame (31) into an internal space (A1) and an external space (A2).
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公开(公告)号：EP4283126A1
公开(公告)日：2023-11-29
申请号：EP21921439.2
申请日：2021-10-06
Applicant: LG Electronics Inc.
Inventor： LEE, Seungmock , KIM, Cheolhwan
Abstract: A scroll compressor is disclosed. A scroll compressor according to an embodiment of the present invention comprises: a compression part for discharging, to the inner space of a casing, a refrigerant compressed in a compression chamber; a discharge port for forming a flow path through which the refrigerant compressed in the compression chamber is discharged to the outside of the compression chamber; and a valve member, which has, at one end portion thereof, a root part fixed to a valve seat part of the compression part, forms a free end on the other end portion thereof, and has a head part to open/close the discharge port. A spacing part is provided between the head part of the valve member and the valve seat part to space the head part from the valve seat part in a state in which the compression part stops. Therefore, during operation of the valve member, the moving speed of the head part is reduced by means of the stiffness of the valve member so that impact force generated when the head part of the valve member collides with one surface of the compression part is reduced and impact noise generated thereby can be decreased.
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公开(公告)号：EP4279743A1
公开(公告)日：2023-11-22
申请号：EP22217268.6
申请日：2022-12-30
Applicant: LG Electronics, Inc.
Inventor： PARK, Sangbaek , JEON, Nayoung , KIM, Cheolhwan
IPC: F04C29/02 , F04C29/12 , F04C18/02 , F04C18/356 , F04C23/00
Abstract: The present disclosure relates to is a compressor. The compressor may be provided with a communication hole (1161) between an inlet (116a) and an outlet (116b) of a refrigerant discharge pipe (116) coupled through an upper surface of a casing (110), the communication hole penetrating between an outer circumferential surface and an inner circumferential surface of the refrigerant discharge pipe. Thus, during oil sealing through the refrigerant discharge pipe, a flux path area of a driving motor (120) may be ensured, and a number of winding wires and/or a coil diameter of a stator coil may be ensured. Thus, efficiency of the driving motor may be maintained and backflow or overflow of oil through the refrigerant discharge pipe may be suppressed. In addition, during operation of the compressor, oil may be suppressed from being excessively leaked through the refrigerant discharge pipe without having to include a separate oil separator inside or inside the casing.
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公开(公告)号：EP4043694A1
公开(公告)日：2022-08-17
申请号：EP21217247.2
申请日：2021-12-23
Applicant: LG Electronics Inc.
Inventor： JEON, Nayoung , PARK, Sangbaek , KIM, Cheolhwan
Abstract: The present disclosure relates to a scroll compressor and an air conditioner having the same, and the scroll compressor includes a flow path guide disposed between a motor unit and a compression unit to separate a refrigerant flow path and an oil flow path. A guide discharge hole communicating with a discharge passage of the compression unit is formed axially through the flow path guide and a guide passage communicating with the guide discharge hole is annularly defined, such that a discharge guide protrusion surrounding the guide discharge hole extends toward the motor unit. Accordingly, inner and outer spaces of the flow path guide can communicate with each other while the refrigerant flow path and the oil flow path are separated, which results in securing a space of an oil recovery passage to allow quick oil recovery and simplifying a structure of the flow path guide to reduce manufacturing costs.
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公开(公告)号：EP3719319A3
公开(公告)日：2020-10-21
申请号：EP20167640.0
申请日：2020-04-02
Applicant: LG Electronics Inc.
Inventor： LEE, Howon , KIM, Taekyoung , KIM, Cheolhwan
Abstract: A scroll compressor is disclosed, which may provide an oil supply path opened only in case of driving of a low pressure ratio to improve a differential pressure oil supply structure which may have a defect in oil supply in case of driving of the low pressure ratio.
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Patent Agency Ranking
公开(公告)号：EP3705723A1
公开(公告)日：2020-09-09
申请号：EP20161371.8
申请日：2020-03-06
Applicant: LG Electronics Inc.
Inventor： PARK, Sangbaek , CHOI, Jungsun , KIM, Cheolhwan
Abstract: Disclosed herein is a scroll compressor including a casing, a drive motor arranged in an inner space of the casing, a rotary shaft coupled to the drive motor to rotate, a main frame arranged under the drive motor, a fixed scroll arranged under the main frame, an orbiting scroll engaging with the orbiting scroll to make an orbiting motion, the rotary shaft being inserted into and eccentrically coupled to the orbiting scroll, a first bearing positioned between the main frame and the rotary shaft, and a second bearing positioned between the fixed scroll and the rotary shaft, wherein a gap between the first and second bearings and the rotary shaft varies with a vertical position. The scroll compressor may prevent the eccentric effect occurring during rotation from deteriorating performance of the bearings, thereby preventing compression performance from being lowered.
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公开(公告)号：EP3696419A1
公开(公告)日：2020-08-19
申请号：EP20160652.2
申请日：2017-04-10
Applicant: LG Electronics Inc.
Inventor： CHOI, Jungsun , LEE, Howon , KIM, Cheolhwan
Abstract: A scroll compressor includes: a casing; a driving motor provided at an inner space of the casing; a rotation shaft coupled to a rotor of the driving motor, and rotated together with the rotor; a frame provided below the driving motor; a fixed scroll provided below the frame, and having a fixed wrap; and an orbiting scroll provided between the frame and the fixed scroll, having an orbiting wrap so as to form a compression chamber of a suction chamber, an intermediate pressure chamber and a discharge chamber, by being engaged with the fixed wrap, and having a rotation shaft coupling portion for coupling the rotation shaft thereto in a penetrating manner, wherein in a state where a center of the fixed scroll and a center of the orbiting scroll are consistent with each other, an interval between the fixed wrap and the orbiting wrap is gradually increased towards the suction chamber from the discharge chamber.
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公开(公告)号：EP3569863A1
公开(公告)日：2019-11-20
申请号：EP19175017.3
申请日：2019-05-17
Applicant: LG ELECTRONICS INC.
Inventor： JEON, Nayoung , KIM, Taekyoung , KIM, Cheolhwan
Abstract: Disclosed is a scroll compressor with a refrigerant discharge flow passage and an oil recovery flow passage separated from each other to improve efficiency and reliability of the compressor. The scroll compressor includes a flow passage separation unit configured to separate an intermediate space between a drive unit and a compression unit into an inner space communicating with the refrigerant flow passage and an outer space communicating with the oil flow passage to separate the refrigerant discharge path from the oil recovery path. Accordingly, the present invention may prevent the oil from being mixed with the discharged refrigerant, thereby reducing an oil discharge amount.
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公开(公告)号：EP2689137B1
公开(公告)日：2019-06-05
申请号：EP12760784.4
申请日：2012-03-14
Applicant: LG Electronics Inc.
Inventor： KIM, Byoungchan , CHOI, Seheon , LEE, Byeongchul , KIM, Cheolhwan
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公开(公告)号：EP3239527A1
公开(公告)日：2017-11-01
申请号：EP17165727.3
申请日：2017-04-10
Applicant: LG Electronics Inc.
Inventor： CHOI, Jungsun , LEE, Howon , KIM, Cheolhwan
Abstract: A scroll compressor includes: a casing (1); a driving motor (2) provided at an inner space of the casing; a rotation shaft (5) coupled to a rotor (22) of the driving motor, and rotated together with the rotor; a frame provided below the driving motor; a fixed scroll (32) provided below the frame, and having a fixed wrap (323); and an orbiting scroll (33) provided between the frame and the fixed scroll, having an orbiting wrap (332) so as to form a compression chamber (V) of a suction chamber, an intermediate pressure chamber and a discharge chamber, by being engaged with the fixed wrap, and having a rotation shaft coupling portion (333) for coupling the rotation shaft thereto in a penetrating manner, wherein in a state where a center of the fixed scroll and a center of the orbiting scroll are consistent with each other, an interval (t1, t2, t3) between the fixed wrap (323) and the orbiting wrap (332) is gradually increased towards the suction chamber (Vs) from the discharge chamber (Vd).
Abstract translation: 涡旋式压缩机包括：壳体（1）; 设置在壳体内部空间的驱动马达（2） 与驱动电动机的转子（22）连接并与转子一起旋转的旋转轴（5） 设置在驱动马达下方的框架; 固定涡卷（32），其设置在所述框架的下方，具有固定卷（323）。 和设置在框架和固定涡旋件之间的绕动涡旋件（33），该绕动涡旋件具有绕动涡卷（332），以便通过啮合而形成吸入室，中间压力室和排放室的压缩室（V） 并且具有用于以贯通的方式将旋转轴联接到其上的旋转轴联接部分（333），其中，在固定涡盘的中心和旋转涡盘的中心彼此一致的状态下， 固定涡卷（323）和绕动涡卷（332）之间的间隔（t1，t2，t3）从排放室（Vd）朝向吸入室（Vs）逐渐增大。
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