公开(公告)号：US20180195520A1

公开(公告)日：2018-07-12

申请号：US15864082

申请日：2018-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Junchul OH ,  Byeongchul LEE ,  Seheon CHOI

IPC: F04D27/00 ,  F04D17/12

CPC classification number: F04D27/002 ,  F04D17/122 ,  F04D25/06 ,  F04D29/0513 ,  F04D29/0516 ,  F04D29/053 ,  F04D29/286 ,  F04D29/4206 ,  F04D29/5806

Abstract: A turbo compressor is provided that may include an impeller housing having an impeller accommodation space, an inlet formed at a first side of the impeller accommodation space, and an outlet formed at a second side of the impeller accommodation space that communicates with the inlet; an impeller accommodated in the impeller accommodation space of the impeller housing, rotated together with a rotary shaft by being coupled to the rotary shaft, and configured to centrifugally-compress a fluid suctioned through the inlet of the impeller housing and discharge the compressed fluid outside of the impeller housing through the outlet; a back pressure space formed between a rear surface of the impeller and the impeller housing; a back pressure passage connected between the outlet of the impeller housing and the back pressure space; and a back pressure control valve installed between the back pressure passage and the back pressure space, and configured to selectively open and close a region therebetween.

公开(公告)号：US20170067467A1

公开(公告)日：2017-03-09

申请号：US15244543

申请日：2016-08-23

Applicant: LG ELECTRONICS INC.

Inventor： Jaeha LEE ,  Junchul OH ,  Seheon CHOI ,  Byeongchul LEE

IPC: F04C29/02 ,  F04C29/00 ,  F04C29/12 ,  F04C23/00 ,  F04C18/02

CPC classification number: F04C29/026 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/005 ,  F04C29/0085 ,  F04C29/12 ,  F04C2210/206 ,  F04C2210/26 ,  F04C2240/10 ,  F04C2240/20 ,  F04C2240/30 ,  F05C2201/021

Abstract: A scroll compressor is provided that may include a casing; a drive motor; a fixed scroll that forms a compression space by being coupled to the orbiting scroll; and a discharge cover provided at an inner space of the casing, the discharge cover having a space that communicates with the compression space and separated from the inner space of the casing, and having one or more discharge hole on a side surface thereof, the one or more discharge hole providing communication between an inside and an outside of the space. With such a configuration, vibration noise of the scroll compressor may be more reduced in comparison with a case in which an oil separator is provided outside of the casing. Further, as an area of the one or more discharge hole and a volume of the space are optimized, efficiency of the scroll compressor may be enhanced.

Abstract translation: 提供一种可包括壳体的涡旋压缩机; 驱动电机; 固定涡卷，其通过联接到所述绕动涡旋件而形成压缩空间; 以及设置在所述壳体的内部空间处的排出盖，所述排出盖具有与所述压缩空间连通并与所述壳体的内部空间分离的空间，并且在其侧面具有一个或多个排出孔， 或更多的排出孔，其提供空间的内部和外部之间的连通。 通过这样的结构，与在壳体外部设置油分离器的情况相比，涡旋式压缩机的振动噪声可能会更多。 此外，随着一个或多个排放孔的区域和空间的体积被优化，可以提高涡旋压缩机的效率。

公开(公告)号：US20230304706A1

公开(公告)日：2023-09-28

申请号：US18013230

申请日：2021-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Changgook MOON ,  Junchul OH ,  Hyojo BAE ,  Seheon CHOI ,  Kyungmin KIM ,  Jinhyeok MUN ,  Byeongchul LEE

IPC: F25B31/00 ,  F04D29/42 ,  F04D25/06 ,  F04D29/056 ,  F04D29/053 ,  F04D17/10 ,  F25B31/02

CPC classification number: F25B31/006 ,  F04D17/10 ,  F04D25/06 ,  F04D29/053 ,  F04D29/056 ,  F04D29/4206 ,  F25B31/026

Abstract: A turbo compressor and a refrigeration cycle device having a turbo compressor are provided. The turbo compressor includes a housing having a motor chamber; a drive motor having a stator and a rotor in the motor chamber of the housing; a first compression portion and a second compression portion, respectively, provided on opposite ends of a rotary shaft; a connecting passage that connects an exit of the first compression portion and an entrance of the second compression portion; an inlet passage that penetrates a first side of the housing to communicate with an inside of the motor chamber and guide a refrigeration fluid to the motor chamber; and an outlet passage that penetrates a second side of the housing to communicate with the inside of the motor chamber and guide the refrigeration fluid in the motor chamber out of the housing. Thus, a gas foil bearing provided in the motor chamber may be quickly actuated by supplying the refrigeration fluid to the motor chamber, and at a same time, heat generated from the motor chamber may be quickly dissipated even in a highspeed operation, thereby improving efficiency of the turbo compressor and a refrigeration cycle device having a turbo compressor.

公开(公告)号：US20230193917A1

公开(公告)日：2023-06-22

申请号：US17893508

申请日：2022-08-23

Applicant: LG ELECTRONICS INC.

Inventor： Changgook MOON ,  Junchul OH ,  Byeongchul LEE ,  Taeyang KIM

IPC: F04D29/20 ,  F04D17/12 ,  F04D29/053 ,  F04D29/62 ,  F04D29/58 ,  F04D25/16

CPC classification number: F04D29/20 ,  F04D17/12 ,  F04D29/053 ,  F04D29/624 ,  F04D29/5806 ,  F04D25/16

Abstract: A turbo compressor is disclosed. The turbo compressor may have an assembly-type rotational shaft where a permanent magnet is inserted into a connecting sleeve, at least one first locking projection formed on either an inner periphery of the connecting sleeve or an outer periphery of the permanent magnet facing the inner periphery of the connecting sleeve, and at least one first locking groove formed on the other. Thus, the permanent magnet constituting a rotor may be easily coupled into the rotational shaft, and the permanent may be effectively prevented from slipping. Moreover, a magnet embedded in the rotational shaft may be securely fixed so that it is held in a position where it is assembled, thus providing an advantage in concentrically aligning the magnet.

公开(公告)号：US20190390675A1

公开(公告)日：2019-12-26

申请号：US16330855

申请日：2017-09-06

Applicant: LG ELECTRONICS INC.

Inventor： Sungyong AHN ,  Jinho KIM ,  Junghoon PARK ,  Junchul OH ,  Byeongchul LEE ,  Jaeha LEE ,  Seheon CHOI

IPC: F04C29/02 ,  F04C18/02

Abstract: The present invention relates to a scroll compressor. A scroll compressor according to the present embodiment comprises a rotational shaft, wherein the rotational shaft comprises: a first frame support part having an inner circumferential surface portion, into which a boss part of a first scroll is inserted, and an outer circumferential surface portion for forming an outer surface thereof; and a guide hole penetrating from the inner circumferential surface portion toward the outer circumferential surface portion.

公开(公告)号：US20170067466A1

公开(公告)日：2017-03-09

申请号：US15246650

申请日：2016-08-25

Applicant: LG ELECTRONICS INC.

Inventor： Junchul OH ,  Jaeha Lee ,  Seheon Choi ,  Byeongchul Lee

IPC: F04C29/00 ,  F04C18/02

CPC classification number: F04C29/0057 ,  F01C17/066 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/0085 ,  F04C2210/26 ,  F04C2230/41 ,  F04C2230/91 ,  F04C2240/10 ,  F04C2240/20 ,  F04C2240/30 ,  F04C2270/16 ,  F05C2201/021 ,  F05C2201/0454 ,  F05C2201/0466 ,  F05C2203/04 ,  F05C2251/10 ,  F05C2253/12

Abstract: A scroll compressor is provided that may include a casing having a sealed inner space; a drive motor provided in the inner space of the casing to generate a rotational force; a rotational shaft rotatably coupled to the drive motor; an orbiting scroll formed of an aluminum material, and coupled to the rotational shaft to perform an orbiting movement; a fixed scroll coupled to the orbiting scroll to form a compression space; and an Oldham ring coupled to the orbiting scroll, and formed of a sintered metal. With this structure, it may be possible to prevent the Oldham ring from being worn out due to contact with the orbiting scroll. Further, a weight loss portion or wear-resistant coating layer may be formed on a portion of the Oldham ring, thereby suppressing or preventing vibration noise of the scroll compressor from being increased due to a weight increase of the Oldham ring.

Abstract translation: 提供一种涡旋压缩机，其可以包括具有密封的内部空间的壳体; 设置在所述壳体的内部空间中以产生旋转力的驱动马达; 可旋转地联接到所述驱动电动机的旋转轴; 由铝材料形成的旋转涡卷，并且联接到所述旋转轴以执行轨道运动; 固定涡旋盘，其联接到所述绕动涡旋件以形成压缩空间; 以及联接到绕动涡旋件的十字环，并且由烧结金属形成。 利用这种结构，可以防止由于与绕动涡盘接触而造成奥德姆环磨损。 此外，可以在奥德姆环的一部分上形成减重部分或耐磨涂层，从而抑制或防止由于奥德姆环的重量增加涡旋压缩机的振动噪声增加。

公开(公告)号：US20150285302A1

公开(公告)日：2015-10-08

申请号：US14679077

申请日：2015-04-06

Applicant: LG ELECTRONICS INC.

Inventor： Junchul OH ,  Sungyong AHN ,  Eunju HWANG ,  Byeongchul LEE ,  Secheon CHOI

IPC: F16C33/20 ,  F04C29/02 ,  F04C29/06 ,  F04C18/02 ,  F04C29/00

CPC classification number: F16C33/201 ,  F01C21/02 ,  F04C18/0215 ,  F04C29/0057 ,  F04C29/0071 ,  F04C29/02 ,  F04C29/06 ,  F04C2230/60 ,  F04C2240/56 ,  F05C2225/12 ,  F05C2251/00 ,  F05C2251/14 ,  F16C2360/42

Abstract: A bush bearing and a scroll compressor including a bush bearing are provided. A boss of an orbiting scroll may be inserted into and coupled to a boss coupling groove of a rotational shaft, and thus, an outer circumferential surface of a bush bearing may wholly contact an inner circumferential surface of the boss coupling groove, thereby decreasing wear of the bush bearing. Further, friction loss in the bush bearing may be reduced, and thus, compression efficiency and reliability may be enhanced, noise may be reduced, and material costs may be reduced. Furthermore, despite that the bush bearing is formed in a ring shape and press-fitted to the boss, as the bush bearing may be formed of a plastic material having an ether ketone bonding in consideration of a thermal expansion rate, an elongation, and a press-fit range, the bush bearing may be effectively prevented from being detached from the boss, thereby enhancing a reliability of a compressor.

Abstract translation: 提供了一种衬套轴承和包括衬套轴承的涡旋压缩机。 绕动涡旋件的凸台可以插入并联接到旋转轴的凸台连接凹槽，因此衬套轴承的外圆周表面可以完全接触凸起联接槽的内圆周表面，从而减小 衬套轴承。 此外，可以减小衬套轴承中的摩擦损失，从而可以提高压缩效率和可靠性，可以降低噪声，并且可以降低材料成本。 此外，尽管衬套轴承形成为环形并且压配合到凸台，但是考虑到热膨胀率，伸长率和延伸率，衬套轴承可以由具有醚酮键合的塑料材料形成 压配合范围，可以有效地防止衬套轴承与凸台分离，从而提高压缩机的可靠性。