-
公开(公告)号：US12126291B2
公开(公告)日：2024-10-22
申请号：US17767826
申请日：2020-10-20
IPC分类号： H02P1/02 , B60H1/32 , H02P29/024
CPC分类号： H02P29/024 , B60H1/3205
摘要： Provided is a method for determining the generation source of ripple voltage when abnormal ripple voltage is detected. The control device is for an electric compressor, the control device comprising: a detection unit that detects ripple voltage; a judgment unit that judges whether the ripple voltage is abnormal based on the value of the ripple voltage; and a cause determination unit that determines whether the cause of the abnormality is the electric compressor or some other external device, based on the control result of the electric compressor.
-
公开(公告)号：US20240347285A1
公开(公告)日：2024-10-17
申请号：US18294855
申请日：2022-06-08
发明人： Yasuo KATAYAMA , Koichi KAWABATA , Yuya NAGAI
CPC分类号： H01H3/04 , H01H9/02 , H01H2215/03
摘要： Provided is a switch which achieves cost reduction and reduction in man-hours required for assembly. This switch comprises: a casing having a wall portion; two rubber domes that are provided to face each other with the wall portion sandwiched therebetween and give a click feeling; a lever main body having a retaining portion that is provided to be rotatable about an axis X with respect to the casing and retains the rubber domes and a contact portion that is in contact with a detector switch. The inside surface of the retaining portion is formed into an arch shape with the wall portion put therein, the two rubber domes are provided integrally with an elastic sheet member, and the sheet member is bent along the arch shape of the inside surface and retained by the retaining portion.
-
公开(公告)号：US12110910B2
公开(公告)日：2024-10-08
申请号：US17442397
申请日：2020-02-28
IPC分类号： F04D29/66 , F04D17/10 , G10K11/162 , G10K11/172
CPC分类号： F04D29/664 , F04D17/10 , G10K11/162 , G10K11/172
摘要： A compressor (100) comprises a compressor body (10), a pipe (20) connected to the compressor body (10), and an acoustic cover disposed so as to surround the compressor body (10). The acoustic cover (30) has an insertion hole (31) through which the pipe (20) is inserted while being in close contact with the pipe (20), and an inner surface (30A) of the acoustic cover has a shape that traces an outer surface (10A) of the compressor body (10). Due to this configuration, it is possible to reduce the size and the weight of the acoustic cover (30), and by using the acoustic cover (30) with a simpler structure, it is possible to reduce the noise of the compressor (100) of this automobile air conditioning device.
-
公开(公告)号：US11994325B2
公开(公告)日：2024-05-28
申请号：US17266012
申请日：2019-06-18
CPC分类号： F25B49/02 , F04D27/001 , F25B41/20 , F25B41/31 , F25B2400/0403 , F25B2400/06 , F25B2500/06 , F25B2600/2501 , F25B2600/2513 , F25B2700/151
摘要： The present invention provides a control device for detecting an abnormal operation state of a compressor in a parallel refrigerator. The control device is a control device for a refrigerator that includes a plurality of compressors connected in parallel, and detects occurrence of surging and occurrence of droplet suction on the basis of a deviation between values of currents flowing through electric motors that is configured to drive each of the plurality of compressors, and an operation point indicated by the air volume and the compression ratio of the plurality of compressors.
-
公开(公告)号：US20240151232A1
公开(公告)日：2024-05-09
申请号：US18281725
申请日：2022-02-09
摘要： This compressor comprises a compressor body, an electric motor that has a rotating shaft extending along an axis and drives the compressor body via the rotating shaft, and a housing that houses the compressor body and the electric motor. The electric motor has a rotor capable of rotating about the axis and an annular stator centered about the axis. The housing has a housing body and a pair of highly rigid parts that are provided on the outer side of the housing body in positions opposite in the radial direction and that have higher rigidity than other portions. The stator is fixed to the inner peripheral surface of the housing at a plurality of fixing points provided at positions different from points where the housing intersects with a first straight line connecting the pair of highly rigid parts and a second straight line orthogonal to the first straight line.
-
公开(公告)号：US20240102465A1
公开(公告)日：2024-03-28
申请号：US17768169
申请日：2020-10-19
摘要： Provided is a method for continuing the operation of an electric compressor even if the magnitude of ripple voltage exceeds a predetermined threshold value. A control device of an electric compressor is provided with: a detection unit for detecting the ripple voltage of the electric compressor which is driven by a battery; a determination unit for determining whether or not the value of the ripple voltage is greater than or equal to a predetermined threshold value; and a control unit for reducing the rotation speed of a motor of the electric compressor down to a predetermined first target rotation speed greater than 0 when the value is greater than or equal to the threshold value.
-
公开(公告)号：US11940164B2
公开(公告)日：2024-03-26
申请号：US17438638
申请日：2020-02-12
发明人： Takayuki Hagita , Nobuya Nakagawa , Hideto Noyama
CPC分类号： F24F11/36 , B60H1/24 , F24F11/50 , F24F11/89 , F25B49/02 , F25B2500/222 , F25B2700/19 , F25B2700/2106
摘要： The purpose of the present invention is to provide a vehicle air conditioning system and a control method of the vehicle air conditioning system which enable detecting leaks of flammable refrigerant without requiring a separate sensor. This vehicle air conditioning system is provided with: a refrigeration cycle for cooling (23); a heat pump cycle for heating (33); a refrigerant that is very flammable, has an explosive range near room temperature, and circulates in the refrigeration cycle for cooling (23) and the heat pump cycle for heating (33); an outside temperature sensor (44) which detects the outside temperature; a pressure sensor (49) which detects the refrigerant pressure; and a control device which calculates the refrigerant density, which is the density of refrigerant, on the basis of the outside temperature and the pressure, and determines whether or not the refrigerant density has fallen below a prescribed threshold value which is based on the amount of sealed refrigerant, the total volume in the refrigeration cycle for cooling (23) and in the heat pump cycle for heating (33), the volume of the vehicle cabin, the standard density of the atmosphere, and the explosive limit of the refrigerant.
-
公开(公告)号：US11939977B2
公开(公告)日：2024-03-26
申请号：US17159741
申请日：2021-01-27
发明人： Hajime Sato , Makoto Takeuchi , Genta Yoshikawa , Kazuhide Watanabe , Katsuhiro Fujita , Takayuki Hagita , Takayuki Kuwahara
CPC分类号： F04C18/0246 , F04C18/0276 , F04C18/0215 , F04C29/12 , F04C2230/41 , F04C2230/92 , F04C2270/16
摘要： A scroll compressor comprising a fixed scroll (15); an orbiting scroll (16) supported in a manner allowing for orbiting motion; a discharge port through which a fluid compressed by the two scrolls (15, 16) is discharged; an end plate step portion (16E) provided on an end plate of the orbiting scroll (16) formed so that a height of the end plate is higher on a center portion side in the direction of a spiral wrap and lower on an outer end side; and a wrap step portion (15E) provided on a wall portion of the fixed scroll (15) that corresponds to the end plate step portion (16E) so that a height of the wall portion is lower on the center portion side of the spiral and higher on the outer end side; wherein the orbiting scroll (16) is treated for surface hardening and the fixed scroll (15) is not treated for surface hardening.
-
公开(公告)号：US20240068472A1
公开(公告)日：2024-02-29
申请号：US18272454
申请日：2022-01-17
摘要： The purpose of the present invention is to suppress noise caused by contact between a depression and a ring. Provided is an electric compressor comprising: a housing that forms an outer shell; a fixed scroll that is housed in the housing and fixed on the housing side; a turning scroll that meshes with the fixed scroll and turns with respect to the fixed scroll; an autorotation inhibiting mechanism (30) that inhibits autorotation of the turning scroll; and a lubricant supply unit that supplies a lubricant to the autorotation inhibiting mechanism (30). The autorotation inhibiting mechanism (30) has: a ring hole (32) which is formed in the turning scroll; a ring (33) which is disposed in the ring hole (32), and the outer circumferential surface (33b) of which faces the inner circumferential surface 32a of the ring hole (32); and a pin (34) which is provided to the housing and which engages with the inner circumferential surface (33a) of the ring (33). A gap (G) formed between the inner circumferential surface (32a) of the ring hole (32) and the outer circumferential surface (33b) of the ring (33) is 0.1-0.6 mm.
-
公开(公告)号：US20230358234A1
公开(公告)日：2023-11-09
申请号：US18028409
申请日：2021-10-15
发明人： Masayuki SAKAI , Tatsuo ISHIGURO , Hitoshi TAMAKI , Hajime SATO , Hirofumi HIRATA , Makoto TAKEUCHI , Takuma KONDO
CPC分类号： F04C29/04 , F04C18/0207 , F04C2240/30
摘要： This scroll compressor comprises: a shaft that is capable of rotating about an axis; a motor that rotatably drives the shaft; a compressor body that is driven by the rotation of the shaft; a housing that covers the motor and the compressor body and that has a bottom surface facing the motor from the axial direction; an intake port that guides a refrigerant into the housing; and heat-dissipating fins that are formed on the bottom surface, that extend in the direction in which the refrigerant flows, and that are divided in the flow direction.
-
-
-
-
-
-
-
-
-
搜索结果
281 条记录 (耗时 0.034 秒)
