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公开(公告)号：US20210353032A1
公开(公告)日：2021-11-18
申请号：US17078311
申请日：2020-10-23
Applicant: LG Electronics Inc.
Inventor： Kyungseok Min , Hyunjoo Oh , Kwangwoon Ahn , Jounyoung Kim
Abstract: A hair dryer is provided that may include a main body, a handle, a flow path, and a fan. The handle may include a handle case having an inner space for forming the flow path and configured to form an exterior of the handle, and a handle frame that extends from the main body in a downward direction so as to be disposed in the inner space of the handle case. The fan may be coupled to the handle frame and spaced apart from an inner circumferential surface of the handle case.
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公开(公告)号：US10968907B2
公开(公告)日：2021-04-06
申请号：US15865966
申请日：2018-01-09
Inventor： Kwangwoon Ahn , Sungyong Ahn , Yoonchul Rhim
Abstract: A linear compressor includes a cylinder that defines a compression chamber configured to accommodate refrigerant and that includes a cylinder nozzle configured to receive refrigerant, and a piston provided in the cylinder and configured to be pressed by refrigerant in the cylinder. The piston includes a piston body configured to move forward and backward within the cylinder, a piston front part located on a front surface of the piston body, the piston front part comprising a suction port through which refrigerant is supplied into the compression chamber, and a refrigerant collection part that is recessed from an outer circumferential surface of the piston front part, that extends to a front surface of the piston front part, and that is configured to receive at least a portion of refrigerant compressed in the compression chamber.
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公开(公告)号：US10125754B2
公开(公告)日：2018-11-13
申请号：US14747110
申请日：2015-06-23
Applicant: LG ELECTRONICS INC.
Inventor： Kwangwoon Ahn , Kichul Choi , Donghan Kim , Sunghyun Ki , Kyeongbae Park
Abstract: A reciprocating compressor is provided. Bearing holes of a fluid bearing of the compressor may be positioned to 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.
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公开(公告)号：US11261856B2
公开(公告)日：2022-03-01
申请号：US16414114
申请日：2019-05-16
Applicant: LG Electronics Inc.
Inventor： Kwangwoon Ahn , Donghan Kim , Kiwon Noh , Joonsung Park
Abstract: Provided is a linear compressor including a linear motor having a mover reciprocating with respect to a stator; a piston coupled to the mover to reciprocate; a cylinder into which the piston is slidingly inserted, the cylinder having an inner circumferential surface forming a bearing surface together with an external circumferential surface of the piston, the cylinder forming a compression space together with the piston, and the cylinder having at least one first hole formed through the inner circumferential surface of the cylinder and an outer circumferential surface of the cylinder to guide refrigerant discharged from the compression space to the bearing surface; and a porous member inserted into the outer circumferential surface of the cylinder and configured to cover the first hole, the porous member having multiple micropores smaller than the first hole.
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公开(公告)号：US11193700B2
公开(公告)日：2021-12-07
申请号：US16157825
申请日：2018-10-11
Applicant: LG Electronics Inc.
Inventor： Kiwon Noh , Kwangwoon Ahn
IPC: F25B31/02 , F04B17/03 , F04B19/22 , F04B19/04 , F04B53/16 , F16C32/06 , F16C33/72 , H02K33/12 , F04B53/18 , F04B35/04 , F04B39/12 , F04B53/08 , F04B39/02 , F04B39/00 , F04B39/06
Abstract: A linear compressor includes a linear motor including a mover that reciprocates with respect to a stator; a compression unit configured to define a compression space in a cylinder while a piston connected to the mover reciprocates in the cylinder; a frame disposed outside of the cylinder; a plurality of discharge covers that define discharge spaces sequentially receiving refrigerant discharged from the compression space; and a gas bearing configured to guide part of refrigerant accommodated in a discharge any one of the plurality of discharge covers to lubricate between the cylinder and the piston with the refrigerant. The discharge cover structure is configured to restrict heat transfer between the discharge covers and the frame.
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Patent Agency Ranking
公开(公告)号：US10280914B2
公开(公告)日：2019-05-07
申请号：US15585394
申请日：2017-05-03
Applicant: LG ELECTRONICS INC.
Inventor： Youngcheol Han , Donghan Kang , Joonsung Park , Kwangwoon Ahn , Sanghyun Lim
Abstract: A linear compressor is provided. The linear compressor may include a cylinder; a frame coupled to an outer side of the cylinder; a cylinder groove defined on an outer circumferential surface of the cylinder; and a sealing member provided in the cylinder groove. The sealing member may be provided between the outer circumferential surface of the cylinder and an inner circumferential surface of the frame.
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公开(公告)号：US20150078925A1
公开(公告)日：2015-03-19
申请号：US14487346
申请日：2014-09-16
Applicant: LG Electronics Inc.
Inventor： Kichul Choi , Kwangwoon Ahn , Donghan Kim
CPC classification number: F04B39/0292 , F04B35/045 , F04B39/126 , F04B39/16 , F04B53/008
Abstract: A reciprocating compressor is provided. The reciprocating compressor may include a cylinder having a compression space, a piston inserted into the cylinder to define the compression space while being reciprocated, the piston having a suction passage to communicate with the compression space, a gas bearing having at least one bearing hole that passes through the cylinder, so that a refrigerant gas may be injected between the cylinder and the piston to support the piston with respect to the cylinder, and a flow resister disposed at an outer circumferential surface of the cylinder or at one side of the cylinder to restrict a flow of the refrigerant gas flowing through or toward the at least one bearing hole.
Abstract translation: 提供往复式压缩机。 往复式压缩机可以包括具有压缩空间的气缸，插入气缸中的活塞以在往复运动的同时限定压缩空间，活塞具有与压缩空间连通的吸入通道，气体轴承具有至少一个轴承孔， 通过气缸，使得可以在气缸和活塞之间注入制冷剂气体以相对于气缸支撑活塞，以及设置在气缸的外圆周表面或气缸的一侧的流动阻塞器， 限制流过或朝向至少一个轴承孔的制冷剂气体的流动。
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公开(公告)号：US20210353026A1
公开(公告)日：2021-11-18
申请号：US17084668
申请日：2020-10-30
Applicant: LG Electronics Inc.
Inventor： Kyungseok Min , Goondong Park , Jounyoung Kim , Kwangwoon Ahn , Hyunjoo Oh
IPC: A45D20/00
Abstract: A hair dryer is provided that may include a main body, a handle, a flow path, and a fan. The handle may include a handle case and a handle frame. The handle frame may include a flow stabilizer located upstream of the fan. A fluid flowing in through an inlet may pass through the flow stabilizer to flow to the fan. A sound absorbing space to reduce noise may be formed between an inner circumferential surface of the handle case and the flow stabilizer.
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公开(公告)号：US10533546B2
公开(公告)日：2020-01-14
申请号：US15585331
申请日：2017-05-03
Applicant: LG ELECTRONICS INC.
Inventor： Hyunsoo Kim , Donghan Kang , Junghae Kim , Kwangwoon Ahn , Eonpyo Hong
Abstract: A linear compressor is provided. The linear compressor may include a cylinder including a cylinder body that defines a compression space for a refrigerant and a cylinder flange that extends from the cylinder body in a radial direction; a piston that reciprocates within the cylinder in an axial direction; and a frame coupled to the cylinder. The frame may include a frame body into which the cylinder body may be inserted and a first press-fitting portion press-fitted into the cylinder flange.
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公开(公告)号：US10352313B2
公开(公告)日：2019-07-16
申请号：US14644254
申请日：2015-03-11
Applicant: LG ELECTRONICS INC.
Inventor： Seongho Ha , Donghan Kim , Kwangwoon Ahn
Abstract: A linear compressor is provided that 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 a first side of the cylinder to selectively discharge the refrigerant compressed in the compression space, at least one nozzle, through which at least a portion of the refrigerant discharged through the discharge valve flows, the at least one nozzle being disposed in the cylinder, and at least one expansion portion that extends from the at least one nozzle to an inner circumferential surface of the cylinder, the at least one expansion portion having a flow cross-section area greater than a flow cross-section area of the at least one nozzle.
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