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公开(公告)号：US12000629B2
公开(公告)日：2024-06-04
申请号：US16723400
申请日：2019-12-20
发明人： Paul William Snell , Matthew Lee Heisey , Tyler Alexander Wolgemuth , Katelynn Louise Crissman , Ian Michael Casper , David Andrew Bradshaw
CPC分类号： F25B31/006 , H02K5/20 , H02K9/04
摘要： A hybrid cooling system for a hermetic motor includes an annular cavity in a motor housing that receives a vapor flow and an annulus in the motor housing that receives a liquid flow. The hybrid cooling system includes a sleeve disposed adjacent to the annular cavity and the annulus, where a radial opening is defined through the sleeve. The hybrid cooling system includes a stator at least partially surrounded by the sleeve, a gap defined between the stator and a rotor, and a vent slot of the stator configured to receive the vapor flow from the annular cavity through the radial opening of the sleeve and direct the vapor flow to the gap. The hybrid cooling system includes an exit path in the motor housing configured to direct an evaporated vapor flow, generated from the liquid flow contacting the stator, and the vapor flow out of the motor housing.
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公开(公告)号：US11906214B2
公开(公告)日：2024-02-20
申请号：US17063248
申请日：2020-10-05
发明人： Xiaogeng Su , Jesus Nohales , Linus Dellweg , Marco Ruiz
CPC分类号： F25B31/006 , F25B31/002 , F25B41/40 , F25B2400/07 , F25B2500/16
摘要： A compressor comprises a suction port configured to receive a refrigerant and means for compressing the refrigerant. The means for compressing forms at least one compression chamber, a discharge port configured for discharging the compressed refrigerant from the compressor, and a motor. The means for compressing comprises at least one opening for extracting a portion of the refrigerant from the at least one compression chamber and supplying the extracted portion of the refrigerant to the motor. A method comprises receiving a refrigerant at a suction port of the compressor, compressing the refrigerant in at least one compression chamber formed by a means for compressing of the compressor, discharging the refrigerant from the compressor at a discharge port of the compressor, and extracting a portion of the refrigerant from the at least one compression chamber and supplying the extracted portion of the refrigerant to a motor of the compressor.
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公开(公告)号：US11811286B2
公开(公告)日：2023-11-07
申请号：US17206662
申请日：2021-03-19
发明人： Kensuke Ikai , Taku Adaniya , Shuji Takimoto , Wataru Sugimoto
CPC分类号： H02K3/522 , F25B1/00 , F25B31/004 , F25B31/006 , H02K5/207 , H02K11/33 , H02K21/16 , H02K2203/06
摘要： An electric compressor includes a housing, an electric motor, and an inverter. The housing includes a motor chamber. The electric motor includes a stator that includes a stator core, a plurality of first coils, a plurality of second coils, and a plurality of third coils. The first coils are connected in series, the second coils are connected in series, and the third coils are connected in series. One of the first coils that is located electrically closest to the first phase is referred to as a first specific coil, one of the second coils that is located electrically closest to the second phase is referred to as a second specific coil, and one of the third coils that is located electrically closest to the third phase is referred to as a third specific coil. The first to third specific coils are disposed above the shaft center of the drive shaft.
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公开(公告)号：US11754321B2
公开(公告)日：2023-09-12
申请号：US17029555
申请日：2020-09-23
发明人： Axel Friedrich , Andreas Becker
CPC分类号： F25B9/008 , F25B1/10 , F25B31/006
摘要： A refrigeration system, in particular a transport refrigeration system, comprising: a refrigerant circuit, which in particular works using CO2 as the refrigerant and in which there is guided a total mass flow of the refrigerant; a high-pressure-side heat exchanger arranged in the refrigerant circuit and cooling refrigerant compressed to a high pressure; at least one cooling stage which expands the principal mass flow from the intermediate-pressure collector to a low pressure in at least one cooling expansion member and in so doing makes refrigeration capacity available at a low-pressure-side heat exchanger; and a refrigerant compressor unit which compresses the principal mass flow from a low pressure to a high pressure, wherein the refrigerant compressor unit has a first compressor stage for compressing, to a medium pressure, the refrigerant of the principal mass flow supplied at low pressure, and a second compressor stage for compressing, to a high pressure, the refrigerant of the principal mass flow that has been compressed to a medium pressure.
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公开(公告)号：US20190006916A1
公开(公告)日：2019-01-03
申请号：US15635658
申请日：2017-06-28
CPC分类号： H02K11/01 , F25B31/006 , H02K1/223 , H02K1/278 , H02K1/28 , H02K9/20 , H02K9/22 , H02K16/02 , H02K21/16
摘要： Disclosed are an electric motor and a simplified variable speed drive system which renders the use of filtering components in a motor drive circuit unnecessary and increases torque transfer from permanent magnets of the rotor to the output shaft. The motor includes a fluid gap between the rotor and the stator configured to receive a cooling fluid, such a refrigerant. A plurality of radially-abutting, bread loaf-shaped magnets having a flat base are respectively fixed to a plurality of longitudinally oriented mounting facets provided on the shaft to provide maximum torque transfer from the magnets to the shaft. An eddy shield disposed between the faceted shaft and the magnets thermally shunts high frequency harmonics from the magnets to the shaft and cooling fluid. The rotor components are mechanically secured by a sleeve disposed around the rotor.
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公开(公告)号：US20180328634A1
公开(公告)日：2018-11-15
申请号：US15971354
申请日：2018-05-04
申请人： LG Electronics Inc.
发明人： Sungyong AHN , Seheon CHOI
CPC分类号： F25B31/006 , F04D25/0606 , F04D29/0513 , F04D29/057 , F04D29/441 , F04D29/5806 , F04D29/584 , H02K5/20 , H02K7/14
摘要： A turbo compressor according to the present invention comprises: a driving unit including a stator and a rotor that generate a rotational force and a rotary shaft that is connected to and rotated by the rotor; an impeller connected to the rotary shaft to pressurize a suction refrigerant in the radial direction of the rotary shaft; and a casing configured to receive the driving unit and the impeller and support the rotary shaft, wherein the casing comprises: a first shell to which the stator is fixed, the first shell rotatably supporting the rotary shaft; and a second shell spaced apart from the first shell to surround the first shell, a shell passage for the refrigerant pressurized by the impeller being defined in a space between the first and second shells. As a result, the discharge refrigerant cools the driving unit, which improves the efficiency of the compressor.
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公开(公告)号：US09982929B2
公开(公告)日：2018-05-29
申请号：US14077849
申请日：2013-11-12
发明人： Hisashi Takeichi
CPC分类号： F25B49/022 , F25B13/00 , F25B31/006 , F25B2313/02741 , F25B2600/2509
摘要： An air conditioner includes a main refrigerant circuit where refrigerant flows in order of a compressor, outdoor heat exchanger, expansion valve, and indoor heat exchanger. An injection circuit is configured such that the refrigerant diverges between the outdoor heat exchanger and indoor heat exchanger in the main refrigerant circuit and returns to the compressor having a pressure between a suction pressure of compressor and a discharge pressure of compressor. The injection circuit includes an injection decompression valve reducing a pressure of the refrigerant, a control unit cooling portion cooling a control unit to control the compressor using the refrigerant, and a sub-cooler evaporation portion provided at a downstream side of the injection decompression valve such that heat exchange of the refrigerant is performed in the sub-cooler evaporation portion, and the control unit cooling portion is provided between the injection decompression valve and the sub-cooler evaporation portion in the injection circuit.
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公开(公告)号：US20180093550A1
公开(公告)日：2018-04-05
申请号：US15283150
申请日：2016-09-30
申请人： Bergstrom, Inc.
CPC分类号： B60H1/00271 , B60H1/00378 , B60H2001/00307 , F25B31/006 , F25B43/006 , F25B2400/051 , F25B2400/23 , H05K7/20936
摘要： The refrigerant liquid-gas separator is thermally coupled to electronics to transfer heat away from the electronics, and assist in vaporizing the liquid refrigerant. The liquid-gas separator device includes a refrigeration section configured to couple to a refrigeration loop, and an electronics board thermally coupled to the refrigeration section. The refrigeration section includes: (a) a refrigerant inlet configured to receive refrigerant from the refrigeration loop; (b) a refrigerant outlet configured to release vapor refrigerant to the refrigeration loop; and (c) a cavity coupled to the refrigerant inlet and the refrigerant outlet, the cavity configured to separate liquid refrigerant from vapor refrigerant. In use, heat from the electronics board is transferred to the refrigerant.
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公开(公告)号：US20180073787A1
公开(公告)日：2018-03-15
申请号：US15705926
申请日：2017-09-15
发明人： Robert J. Roth
CPC分类号： F25B31/006 , F25B1/04 , F25B1/10 , F25B5/00 , F25B41/003 , F25B49/02 , F25B2600/021 , F25B2600/2501 , F25B2600/2519 , F25B2700/21156 , Y02B30/741
摘要： Systems and methods for controlling a cooling circuit for a variable frequency drive (VFD) in an HVACR system are disclosed. The method includes determining, by a controller, an operating condition of a heat sink associated with the VFD. The controller determines whether a temperature of the heat sink is greater than or equal to a heat sink temperature threshold. The method further includes enabling a bypass flow control device in response to the heat sink temperature being greater than or equal to the heat sink temperature threshold.
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公开(公告)号：US09839158B2
公开(公告)日：2017-12-05
申请号：US13418461
申请日：2012-03-13
申请人： Andre Mitchell
发明人： Andre Mitchell
CPC分类号： H05K7/20254 , F25B1/00 , F25B17/06 , F25B25/005 , F25B31/006 , F25B39/04 , H05K7/20318 , H05K7/20354 , H05K7/20509
摘要： A cold plate device and method for cooling electronic systems is provided including a generally flat thermally conductive body having a cooling channel within the thermally conductive body. A first cooling fluid travels through the cooling channel to remove heat from the conductive body. A vapor compression cycle system is coupled to the thermally conductive body such that the first cooling fluid removes heat from a second cooling fluid in a portion of the vapor compression cycle system.
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