• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Rotating electric machine (1) comprising: At least one end flange (20) bearing a bearing (21), a carcass (10) on which the end flange (20) is attached, this carcass (10) being cooled by a liquid cooling circuit and having at least two connections (40) communicating with this cooling circuit, the two connections allowing the supply and the return of coolant of the flange when the latter is intended to be cooled by a circulation of cooling liquid
    公开号:FR3018643A1
    申请号:FR1452059
    申请日:2014-03-12
    公开日:2015-09-18
    发明作者:Thierry Pera；Philippe Ciciliani；Bernard Corberand
    申请人:Moteurs Leroy Somer SA；
    IPC主号:
    专利说明:

    [0001] The present invention relates to rotating electric machines with liquid cooling, and more particularly liquid-cooled electric motors, especially water. Depending on the applications or design constraints, some p. A rotating machine may or may not require cooling. In particular, in the case of a carcass having bearings associated with a pivot, it may be necessary to cool the pivot, and thus provide the bearings of a cooling system. Conversely, in other applications or in the context of other design constraints, it may be superfluous to use cooled bearings.
    [0002] This diversity of applications makes it difficult to construct such machines, as well as the supply of spare parts inherent to their maintenance. The invention aims to further improve rotating electrical machines and reduce the diversity of parts constituting them to facilitate their maintenance and industrialization. It achieves this through a rotary electrical machine having at least one end flange carrying a bearing, a carcass on which is attached the end flange, the carcass being cooled by a liquid cooling circuit, and having at least two connectors communicating with this cooling circuit, the two connections for the supply and return coolant of the flange when the latter is intended to be cooled by a circulation of the coolant. The presence of the two connections makes it possible to use the same carcass in combination with bearings cooled by a circulation of liquid, or in combination with uncooled bearings. This allows for greater modularity and greatly facilitates the manufacture, maintenance and management of spare parts of the machines concerned. The invention thus also relates to a range of at least two rotating machines according to the invention, the carcasses of the two machines being identical, at least one of the machines comprising a flange cooled by liquid and at least one other machine having a flange not cooled by liquid.
    [0003] The subject of the invention is also a method for manufacturing a range of rotating electrical machines according to the invention, in which a plurality of identical carcasses is manufactured, and bearings are assembled on each carcass with liquid or non-liquid cooled bearings. needs ; in the case of a liquid cooling of the bearing it is connected to the connections of the carcass, and in the case of non-cooling of the bearing by liquid, the connections of the carcass are not used or connected to each other. The two connections are preferably connected together to allow circulation of the coolant between them when the flange does not have to be cooled by circulation of the coolant. This is to avoid cutting the liquid circulation circuit of the carcass. Preferably, the two connections are located near the corresponding flange. The electric machine according to the invention may comprise two pairs of connectors, each for cooling a corresponding flange of the machine. In this case, each pair of connectors may be located near the corresponding flange. The connection between the connections of the carcass and the corresponding flange preferably takes place using external conduits, preferably rigid. This can advantageously facilitate the removability of the latter, and the change of the bearings, while promoting the cooling of the liquid at the level of the pipes. The connection between the connections in the absence of liquid cooling of the flange is preferably performed by a single piece, attached to the carcass. The use of a single piece makes it possible to limit the number of pieces by limiting the risk of leakage. The rotary electric machine according to the invention is preferably a motor. The engines using liquid circulation cooling are, for example, engines used in naval applications. The machine according to the invention can be such a motor, and the cooling liquid can then be seawater. The invention can be better understood on reading the following detailed description of a nonlimiting example. 1, showing an example of a rotary electric machine according to the invention, comprising bearings cooled by a circulation of coolant, and FIG. FIG. 2 shows an example of a rotating electrical machine comprising the carcass of the machine of FIG. 1 with Li bearings cooled by a circulation of cooling liquid. FIG. 1 shows a rotating electrical machine 1, in this case motor, comprising a carcass 10 constituting a relatively closed and sealed enclosure, preferably having a water protection index 1P55 or greater.
    [0004] The present invention relates to rotating electric machines with liquid cooling, and more particularly liquid-cooled electric motors, especially water. Depending on the applications or design constraints, some parts of a rotating machine may or may not require cooling. In particular, in the case of a carcass having bearings associated with a pivot, it may be necessary to cool the pivot, and thus provide the bearings of a cooling system. Conversely, in other applications or in the context of other design constraints, it may be superfluous to use cooled bearings.
    [0005] This diversity of applications makes it difficult to construct such machines, as well as the supply of spare parts inherent to their maintenance. The invention aims to further improve rotating electrical machines and reduce the diversity of parts constituting them to facilitate their maintenance and industrialization. It achieves this through a rotating electrical machine comprising: At least one end flange bearing a bearing, A carcass on which is attached the end flange, the carcass being cooled by a liquid cooling circuit, and having at least two connectors communicating with this cooling circuit, the two connections allowing the supply and return coolant of the flange when the latter is intended to be cooled by a circulation of the coolant. The presence of the two connections makes it possible to use the same carcass in combination with bearings cooled by a circulation of liquid, or in combination with uncooled bearings. This allows for greater modularity and greatly facilitates the manufacture, maintenance and management of the spare parts of the machines concerned. The invention thus also relates to a range of at least two rotating machines according to the invention, the carcasses of the two machines being identical, at least one of the machines comprising a flange cooled by liquid and at least one other machine having a flange not cooled by liquid. The invention also relates to a method for manufacturing a range of rotating electrical machines according to the invention, in which a plurality of identical carcasses is manufactured, and on each carcass are assembled bearings cooled by liquid or not as required ; in the case of a liquid cooling of the bearing it is connected to the connections of the carcass, and in the case of non-cooling of the bearing by liquid, the connections of the carcass are not used or connected to each other. The two couplings are preferably connected together to allow circulation of the coolant therebetween when the flange does not have to be cooled by circulation of the coolant. This makes it possible not to cut the liquid circulation circuit of the carcass. Preferably, the two connections are located near the corresponding flange. The electric machine according to the invention may comprise two pairs of connectors, each for cooling a corresponding flange of the machine. In this case, each pair of connectors may be located near the corresponding flange. The connection between the connections of the carcass and the corresponding flange preferably takes place using external conduits, preferably rigid. This can advantageously facilitate the removability of the latter, and the change of the bearings, while promoting the cooling of the liquid at the level of the pipes. The connection between the connections in the absence of liquid cooling of the flange is preferably performed by a single piece, attached to the carcass. The use of a single piece limits the number of parts while limiting the risk of leakage. The rotary electric machine according to the invention is preferably a motor. The engines using liquid circulation cooling are for example the engines used in naval applications. The machine according to the invention can be such a motor, and the cooling liquid can then be seawater. The invention can be better understood on reading the following detailed description of a nonlimiting example. implementation thereof, and on examining the appended drawing, in which: - Figure 1 shows an example of a rotary electric machine according to the invention, comprising bearings cooled by a circulation of coolant, and FIG. 2 shows an example of a rotating electrical machine comprising the carcass of the machine of FIG. 1 with bearings uncooled by a circulation of coolant. FIG. 1 shows a rotary electric machine 1, in this case a motor, comprising a carcass 10 constituting a relatively closed and sealed enclosure, preferably having a protection index with water IP55 or higher.
    [0006] The carcass 10 is elongate in shape. X axis, being closed at both ends by flanges 20 which define a front side and a rear side. Each flange 20 carries a bearing 21, associated with a shaft 23 by means of bearings not shown.
    [0007] The engine is cooled by a circulation of liquid F, for example water, which comes from an external source and enters the carcass 10 at an inlet 31, circulates in channels inside the carcass 10, passes at the level of connections 40, and goes outward again at an outlet 33. In the case where the bearings are liquid-cooled, as illustrated in FIG. 1, the 10 bearings comprise connectors 41 which are connected to the connections 40 of the carcass 10 via external lines 50. The flow of liquid then passes successively: - through the inlet 31, - through the channels of the carcass, - into bearing channels through the couplings 40 of the carcass, external conduits 50, and fittings 41 of the bearings, - in the channels of the carcass through the connections 41 of the bearings, external conduits 50 and fittings 40 of the carcass, and -by the 33. If the bearings are not cooled by As shown in FIG. 2, the couplings 40 of the carcass are connected to each other by means of a single piece 60 attached to the carcass 10, preferably sealingly. In this way, the flow of liquid passes through the same parts of the carcass 10 as in the case illustrated in Figure 1. The pressure drop is not the same depending on whether the liquid flows both in the carcass and in the Bearings or only in the casing, care should be taken to adjust the inlet pressure, if necessary. In the case of engines used in marine applications, the coolant is for example seawater. The circulation of liquid makes it possible to cool the stator. The invention is not limited to the example which has just been described and may in particular be applied to electric motors in applications other than marine ones. The coolant can circulate in a closed loop between the engine and a cooling system for this liquid or alternatively in an open circuit, the water injected into the engine being released into the environment, which may be the case, for example, with cooling with sea water.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Rotating electric machine (1) comprising: - At least one end flange (20) bearing a bearing (21), a carcass (10) on which the end flange (20) is attached, this carcass (10) being cooled by a liquid cooling circuit and having at least two connections (40) communicating with this cooling circuit, the two connections allowing the supply and the cooling liquid return of the flange when the latter is intended to be cooled by a circulation of coolant.
    [0002]
    2. Machine according to claim 1, the two connections (40) being connected together to allow circulation of the coolant between them when the flange does not have to be cooled by a circulation of the coolant.
    [0003]
    3. Machine according to one of the preceding claims, the two connectors (40) being located near the corresponding flange.
    [0004]
    4. Machine according to any one of the preceding claims, comprising two pairs of connectors (40), each for cooling a corresponding flange of the machine.
    [0005]
    5. Machine according to the preceding claim, each pair of connectors (40) being located near the corresponding flange.
    [0006]
    6. Machine according to any one of the preceding claims, the connection 20 between the connections (40) of the carcass and the flange being effected with the aid of external ducts (50).
    [0007]
    7. Machine according to any one of the preceding claims, the connection between the connectors (40) in the absence of liquid cooling of the flange being effected by a single piece (60) attached to the carcass. 25
    [0008]
    8. Machine according to any one of the preceding claims, constituting a motor.
    [0009]
    9. Range of at least two rotating electrical machines (1), each as defined in any one of the preceding claims, the carcasses of the two machines being identical, at least one of the machines comprising a liquid-cooled flange and at least one other machine having a non-liquid cooled flange.
    [0010]
    10. A method of manufacturing a range of rotating electrical machines (1) as defined in claim 9, wherein a plurality of identical carcasses is manufactured, and assembling on each carcass bearings cooled by liquid or not according toles needs, in the case of a liquid cooling of the bearing it is connected to the connections of the carcass, and in the case of non-cooling of the bearing by liquid, the connections of the carcass are not used or connected to each other .
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3117507A1|2017-01-18|
    WO2015136422A1|2015-09-17|
    CN204794570U|2015-11-18|
    US10298086B2|2019-05-21|
    FR3018643B1|2019-05-17|
    US20170033641A1|2017-02-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE10145339A1|2000-09-19|2002-03-28|Visteon Global Tech Inc|Liquid cooled electric machine e.g. generator for motor vehicle, comprises double cooling tube arrangement and housing equipped with rotor mounted on shaft and co-axial stator|
    US20050151431A1|2004-01-14|2005-07-14|Caterpillar Inc.|Cooling system for an electric motor|
    US20090015081A1|2007-07-13|2009-01-15|Aisin Aw Co., Ltd.|Cooling structureand cooling method of rotating electrical machine|
    US6633097B2|2001-09-10|2003-10-14|General Electric Company|Mechanical joining for water-cooled motor frame|
    DE10244428A1|2002-09-24|2004-06-17|Siemens Ag|Electrical machine with a cooling device|
    DE102005044832A1|2005-09-20|2007-03-22|Siemens Ag|Electric machine|
    ES2302621B1|2006-07-18|2009-05-21|GAMESA INNOVATION & TECHNOLOGY, S.L.|COOLED ELECTRIC GENERATOR WITH TUBES EMBEDDED IN ITS COVER.|
    US8803381B2|2011-07-11|2014-08-12|Remy Technologies, Llc|Electric machine with cooling pipe coiled around stator assembly|
    DE102012205404A1|2012-04-03|2013-10-10|Bayerische Motoren Werke Aktiengesellschaft|Electric machine|US20100068718A1|2008-08-22|2010-03-18|Hooper Dennis G|Methods and Compositions for Identifying Yeast|
    FR3062253B1|2017-01-25|2020-06-12|IFP Energies Nouvelles|CLOSED ROTATING ELECTRIC MACHINE WITH AN AIR COOLING SYSTEM OF THE MAGNETS IN THE ROTOR|
    FR3064424A1|2017-03-21|2018-09-28|IFP Energies Nouvelles|CLOSED ROTARY ELECTRIC MACHINE COMPRISING A COOLING DEVICE FOR THE STATOR COIL HEAD.|
    US10941706B2|2018-02-13|2021-03-09|General Electric Company|Closed cycle heat engine for a gas turbine engine|
    US11143104B2|2018-02-20|2021-10-12|General Electric Company|Thermal management system|
    US11015534B2|2018-11-28|2021-05-25|General Electric Company|Thermal management system|
    FR3098361B1|2019-07-04|2021-06-25|Leroy Somer Moteurs|Electric rotating machine comprising an internal circuit for cooling the rotor|
    法律状态:
    2016-02-29| PLFP| Fee payment|Year of fee payment: 3 |
    2017-02-27| PLFP| Fee payment|Year of fee payment: 4 |
    2018-02-16| PLFP| Fee payment|Year of fee payment: 5 |
    2020-02-27| PLFP| Fee payment|Year of fee payment: 7 |
    2021-03-31| PLFP| Fee payment|Year of fee payment: 8 |
    2022-01-26| PLFP| Fee payment|Year of fee payment: 9 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1452059A|FR3018643B1|2014-03-12|2014-03-12|ROTATING ELECTRIC MACHINE|
    FR1452059|2014-03-12|FR1452059A| FR3018643B1|2014-03-12|2014-03-12|ROTATING ELECTRIC MACHINE|
    PCT/IB2015/051646| WO2015136422A1|2014-03-12|2015-03-06|Rotating electric machine|
    EP15711305.1A| EP3117507A1|2014-03-12|2015-03-06|Rotating electric machine|
    US15/124,825| US10298086B2|2014-03-12|2015-03-06|Rotating electric machine|
    CN201520141102.5U| CN204794570U|2014-03-12|2015-03-12|Combination of rotating electrical machines and two at least rotating electrical machiness|
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