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公开(公告)号：US11808262B2
公开(公告)日：2023-11-07
申请号：US17324219
申请日：2021-05-19
Applicant: LG ELECTRONICS INC.
Inventor： Sangik Son , Wooju Jeon , Jaehyeok Lee , Donghan Kim
CPC classification number: F04B53/18 , F04B39/0276 , F04B39/0292 , F16C29/025 , F04B35/045
Abstract: A linear compressor includes a cylinder that defines a compression space of a refrigerant and has a cylindrical shape, and a piston disposed in the cylinder and reciprocating along an axis of the cylinder. The cylinder includes a supply port radially passing through the cylinder, and a recess formed on an inner circumferential surface of the cylinder and communicating with the supply port. The supply port includes a first supply port and a second supply port disposed in a rear of the first supply port, and the recess includes a first recess and a second recess disposed in a rear of the first recess. The first recess and the second recess are formed in different shapes.
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公开(公告)号：US11384836B2
公开(公告)日：2022-07-12
申请号：US17117823
申请日：2020-12-10
Applicant: LG Electronics Inc.
Inventor： Youngkyun Lim , Jeongwoo Kim , Donghan Kim
Abstract: A piston for a compressor includes a bearing portion having a cylindrical shape to define a suction space into which refrigerant is accommodated therein, the bearing portion being provided with a bearing surface facing an inner circumferential surface of the cylinder, a head portion coupled to a front opening of the bearing portion and provided with a plurality of suction ports which communicate with the suction space, the head portion having a compression surface configured to face a compression space to compress the refrigerant in the compression space, and a flange portion coupled to a rear opening of the bearing portion and provided with a through-passage through which the refrigerant is introduced from a muffler unit to the suction space, the flange portion being coupled to a driving portion to transmit driving force to the piston. The bearing surface is subjected to a surface treatment to improve abrasion resistance.
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公开(公告)号：US11002265B2
公开(公告)日：2021-05-11
申请号：US16502868
申请日：2019-07-03
Applicant: LG Electronics Inc.
Inventor： Wooju Jeon , Donghan Kim , Kichul Choi
Abstract: Provided is a linear compressor. The linear compressor includes a piston, a cylinder, and a bearing inflow passage. The bearing inflow passage includes a first bearing inflow passage extending inward from an outer circumferential surface of the cylinder in the radial direction and a second bearing inflow passage extending from the first bearing inflow passage to an inner circumferential surface of the cylinder. The second bearing inflow passage extends from the inner circumferential surface of the cylinder in a circumferential direction.
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公开(公告)号：US10801547B2
公开(公告)日：2020-10-13
申请号：US16274793
申请日：2019-02-13
Applicant: LG ELECTRONICS INC.
Inventor： Eunji Hwang , Sunggi Kim , Hangjin Ban , Donghan Kim , Byungjik Kim
Abstract: A rolling bearing includes an inner rim fixed to a rotating shaft, an outer rim spaced apart from the inner rim, a rolling member disposed between the inner rim and the outer rim, and an elastic mesh defining a plurality of through-holes and surrounding an outer circumferential surface of the outer rim.
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公开(公告)号：US10247237B2
公开(公告)日：2019-04-02
申请号：US15698960
申请日：2017-09-08
Applicant: LG ELECTRONICS INC.
Inventor： Eunji Hwang , Sunggi Kim , Hangjin Ban , Donghan Kim , Byungjik Kim
Abstract: A rolling bearing includes an inner rim fixed to a rotating shaft, an outer rim spaced apart from the inner rim, a rolling member disposed between the inner rim and the outer rim, and an elastic mesh defining a plurality of through-holes and surrounding an outer circumferential surface of the outer rim.
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Patent Agency Ranking
公开(公告)号：US20180184191A1
公开(公告)日：2018-06-28
申请号：US15655499
申请日：2017-07-20
Applicant: LG Electronics Inc.
Inventor： Donghan Kim , Jihye Choe , Jihye Kim , Kyoungsu Nam
IPC: H04R1/10
CPC classification number: H04R1/1041 , H04R1/1016 , H04R1/1025 , H04R1/105 , H04R1/1091 , H04R2201/107 , H04R2201/109 , H04R2420/07
Abstract: A wireless sound equipment includes a cradle including a pair of earbuds and a pair of holders having the earbuds coupled thereto. Each earbud includes an ear housing; a sound passage extended from a first surface of the ear housing; a sound output unit outputting sound via the sound passage; a wireless communication unit located in the ear housing; an earbud controller driving the sound output unit based on a signal transmitted by using the wireless communication unit; a main battery supplying an electric power; a plurality of earbud terminals exposed to the first surface of the ear housing and connected with the earbud controller; and a control button located in a second surface of the ear housing. The cradle also includes a cradle case in which the holders are formed; a plurality of cradle terminals provided in the holder and configured to contact with the earbud terminals; a sub battery located in the cradle case; and a cradle controller.
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公开(公告)号：US09890779B2
公开(公告)日：2018-02-13
申请号：US14644988
申请日：2015-03-11
Applicant: LG ELECTRONICS INC.
Inventor： Kwangwoon Ahn , Donghan Kim , Seongho Ha
CPC classification number: F04B53/1077 , F04B35/045 , F04B39/0292 , F04B39/041 , F04B39/122 , F04B53/008 , F04B53/20
Abstract: A linear compressor is provided. The linear compressor may include a shell including a suction inlet, a cylinder provided in the shell to define a compression space for a refrigerant, a piston reciprocated in an axial direction within the cylinder, a discharge valve provided at one side of the cylinder to selectively discharge the refrigerant compressed in the compression space, and at least one nozzle, through which at least a portion of the refrigerant discharged through the discharge valve may flow, the at least one nozzle being disposed in the cylinder. The at least one nozzle may include an inlet, through which the refrigerant may be introduced, and an outlet having a diameter less than a diameter of the inlet.
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公开(公告)号：US09494148B2
公开(公告)日：2016-11-15
申请号：US13973043
申请日：2013-08-22
Applicant: LG ELECTRONICS INC.
Inventor： Kwangwoon Ahn , Kichul Choi , Donghan Kim , Sunghyun Ki , Kyeongbae Park
CPC classification number: F04B35/04 , F01B1/00 , F04B35/045 , F04B39/0005 , F04B39/0276 , F04B39/12 , F04B39/121 , F04B39/122 , F04B39/123
Abstract: A reciprocating compressor is provided. Bearing holes of a fluid bearing of the compressor may be positioned correspond to a full reciprocating region of a piston, to reduce/eliminate frictional loss and/or abrasion between a cylinder and the piston. The bearing holes may be concentrated at certain regions of the cylinder to stably support the piston through a full reciprocating range. Compression coil springs may maintain concentric alignment of the cylinder and the piston. Gas through holes may be radially formed at the piston to lower a pressure of a bearing space and allow refrigerant to be smoothly introduced into the bearing space through a gas pocket. A casing of the compressor may include an outer shell and an inner shell to attenuate vibration generated due to friction generated by operation of the reciprocating compressor.
Abstract translation: 提供往复式压缩机。 压缩机的流体轴承的轴承孔可以被定位成对应于活塞的完全往复运动区域，以减少/消除气缸和活塞之间的摩擦损失和/或磨损。 轴承孔可以集中在气缸的某些区域，以便在整个往复运动范围内稳定地支撑活塞。 压缩螺旋弹簧可以保持气缸和活塞的同心对准。 气体通孔可以在活塞处径向地形成，以降低轴承空间的压力，并允许制冷剂通过气囊平滑地引入轴承空间。 压缩机的壳体可以包括外壳和内壳，以减弱由于往复式压缩机的操作产生的摩擦而产生的振动。
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公开(公告)号：US11746767B2
公开(公告)日：2023-09-05
申请号：US17381654
申请日：2021-07-21
Applicant: LG ELECTRONICS INC.
Inventor： Sangik Son , Wooju Jeon , Youngkyun Lim , Donghan Kim
CPC classification number: F04B35/045 , F04B39/0005 , F04B39/0292 , F04B39/122 , F04B53/18 , F04B53/162
Abstract: A linear compressor includes a cylinder that defines a compression space of a refrigerant and has a cylindrical shape, and a piston disposed in the cylinder and reciprocating along an axis of the cylinder. The cylinder includes a gas inlet formed on an outer circumferential surface of the cylinder, a supply port radially passing through the cylinder and communicating with the gas inlet, and a recess communicating with the supply port and formed on an inner circumferential surface of the cylinder. An angle formed by an axial cross section of the recess and a straight line extending the supply port and an angle formed by the axial cross section of the recess and a straight line extending the inner circumferential surface of the cylinder each are an acute angle.
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公开(公告)号：US11549498B2
公开(公告)日：2023-01-10
申请号：US16983431
申请日：2020-08-03
Applicant: LG Electronics Inc.
Inventor： Donghan Kim , Youngkyun Lim , Kiil Hwang
Abstract: A linear compressor includes a discharge valve detachably attached to a front end surface of a cylinder to open and close a compression space of the cylinder; and a valve spring elastically supporting a rear surface of the discharge valve to press the discharge valve toward the front end surface of the cylinder. The discharge valve includes reinforced fiber, and the reinforced fiber is arranged parallel to the front end surface of the cylinder. Accordingly, while a rigidity of the discharge valve is improved, a weight of the valve is reduced to enhance responsiveness of the valve, suppress abrasion of the cylinder, and reduce striking sound.
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