CN101958609A - 混合级联润滑及冷却系统 - Google Patents

混合级联润滑及冷却系统 Download PDF

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CN101958609A
CN101958609A CN2010102346650A CN201010234665A CN101958609A CN 101958609 A CN101958609 A CN 101958609A CN 2010102346650 A CN2010102346650 A CN 2010102346650A CN 201010234665 A CN201010234665 A CN 201010234665A CN 101958609 A CN101958609 A CN 101958609A
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R·A·希默尔曼
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Hamilton Sundstrand Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00Arrangement in connection with cooling of propulsion units
    • B60K11/02Arrangement in connection with cooling of propulsion units with liquid cooling
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/19Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/10Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K19/00Synchronous motors or generators
    • H02K19/16Synchronous generators
    • H02K19/38Structural association of synchronous generators with exciting machines
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/006Structural association of a motor or generator with the drive train of a motor vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00Arrangement or mounting of electrical propulsion units
    • B60K2001/003Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K16/00Machines with more than one rotor or stator
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49009Dynamoelectric machine
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49009Dynamoelectric machine
    • Y10T29/49012Rotor
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49826Assembling or joining

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

本发明提供一种用于具有嵌套层的电机(102)的混合级联润滑及冷却系统(200、400)。电机(102)包括相对于外部嵌套层(446)嵌套的内部嵌套层(444)。油泵(222)耦联至油泵进油管(226)以从油槽(224)汲取油,并耦联至冷却芯(230)以在电机(102)内分配油。转子构件(212)耦联至内部嵌套层(444)和外部嵌套层(446)。转子构件(212)在围绕电机(102)的中心轴线(216)旋转时,通过转子构件(212)中的内部径向孔(424)和外部径向孔(436)从冷却芯(230)离心地泵送油。

Description

混合级联润滑及冷却系统
相关申请的交叉引用
本申请包含与以下的共同未决的申请的主题相关的主题,这些共同未决的申请转让给与本申请相同的受让人,即Connecticut州Windsor Locks市的Hamilton Sundstrand Corporation。以下列出的申请在此以参考的方式全文并入:
美国专利申请代理人档案号为No.PA-0011111-US,名称为NESTEDTORSIONAL DAMPER FOR AN ELECTRIC MACHINE的申请;以及美国专利申请代理人档案号为No.PA-0011112-US,名称为NESTEDEXCITER AND MAIN GENERATOR STAGES FOR AWOUND FIELDGENERATOR的申请。
技术领域
在此公开的主题概括地说涉及电机的润滑和冷却,更具体而言涉及用于具有嵌套层(nested stages)的电机的混合级联润滑及冷却。
背景技术
电机可包括作为转子组件沿轴顺序布置的一个或多个层。为了冷却电机,可将油泵送到轴的内径中。冷却油流过转子组件以散热。可加压并从轴直接喷射冷却油,以冷却紧密地物理接近轴的部件。然而,如果不能将冷却油泵送通过轴或者来自轴的喷射不可直接达到待冷却的部件,则这样的冷却和润滑方案可能效率低。
发明内容
根据本发明的一个方面,提供一种用于具有嵌套层的电机的混合级联润滑及冷却系统。电机包括内部嵌套层和外部嵌套层,其中相对于外部嵌套层围绕电机的中心轴线径向地嵌套的内部嵌套层。混合级联润滑及冷却系统包括:油泵,其耦联至油泵进油管,以从油槽汲取油;和冷却芯,以在电机内分配泵送的油。转子构件耦联至电机的内部嵌套层和外部嵌套层。转子构件在围绕电机的中心轴线旋转时,通过转子构件中的内部径向孔和外部径向孔从冷却芯离心地泵送油。
根据本发明的另一方面,提供一种为具有嵌套层的电机产生混合级联润滑及冷却系统的方法。电机包括内部嵌套层和外部嵌套层,其中相对于外部嵌套层围绕电机的中心轴线径向地嵌套的内部嵌套层。该方法包括将油泵耦联至油泵进油管以从油槽汲取油,并构成冷却芯以在电机内分配泵送的油。该方法另外包括将转子构件耦联至电机的内部嵌套层和外部嵌套层。转子构件构造成在围绕电机的中心轴线旋转时,通过转子构件中的内部径向孔和外部径向孔从冷却芯离心地泵送油。
上述及其它的优点和特征将通过以下结合附图的描述而变得更加明显。
附图说明
尤其地在说明书完结时的权利要求书中指出并明确要求保护被认为是本发明的主题。本发明的上述及其它的特征、和优点将通过以下结合附图的详细说明而显现,其中:
图1图解传动系统的示例性实施方式,该传动系统包括安装在该传动系统中的电机;
图2描绘用于具有嵌套层的电机的混合级联润滑及冷却系统的示例性实施方式的剖视图;
图3图解电机中结合的管道的示例性实施方式的侧视图;
图4图解用于具有嵌套层的电机的混合级联润滑及冷却系统的示例性实施方式的剖视图;以及
图5描绘为具有嵌套层的电机产生混合级联润滑及冷却系统的过程。
通过参考附图的示例,具体实施方式部分对本发明的实施方式、连同优点和特征一起进行说明。
具体实施方式
图1图解了传动系统100的示例性实施方式。在示例性实施方式中,传动系统100是诸如卡车或坦克等陆上车辆传动系统的一部分。传动系统100包括插在发动机104与传动装置(transmission)106之间的电机102。在示例性实施方式中,电机102具有与发动机104和传动装置106上现有耦联点对齐的耦联点108。因此,当将电机102插入传动系统100时,能使对诸如发动机104和传动装置106等现有部件的冲击最小化。尽管电机102描绘为位于发动机104与传动装置106之间,但应理解的是,传动系统100上的部件的布置不受这样的限制。例如,可存在诸如插在传动系统100中的离合器等附加的部件,或者如果对于电机102而言需要较小的直径,则电机102可耦联至传动装置106相对的端部。电机102可以是响应机械旋转用于产生电流或电压的发电机或交流发电机。
在示例性实施方式中,电机102耦联至外管道110,以将油输送至热交换器/安全阀/过滤器组件(ERFA)112或从它们输送离开。循环通过电机102的油汲取由电机102产生的热,并且还润滑电机102的部件。电机102中的油还可俘获来自电机102内部的颗粒物质和其它碎屑。一个或多个泵使油通过外管道110循环至ERFA 112,油在该ERFA 112的位置于返回至电机102之前被冷却和过滤。
图2描绘了用于图1的电机102的混合级联润滑及冷却系统200的示例性实施方式的剖视图。在图2所描绘的电机102的示例性实施方式中,电机102是嵌套绕场发电机(nested wound field generator),其具有外层定子202、外层转子204、旋转整流器组件206、内层定子208、和内层转子210。外层转子204和内层转子210耦联至由驱动轴214的旋转驱动的转子构件212。在示例性实施方式中,驱动轴214绕电机102的中心轴线216旋转,使得转子构件212旋转。当转子构件212旋转时,外层定子202和内层定子208保持固定。旋转整流器组件206可紧靠外层转子204或内层转子210设置在转子构件212上,并电耦联至外层转子204和内层转子210二者。导线盖218可用于保持导线支持旋转整流器组件206。
当驱动轴214旋转时,转子构件212使紧靠内层定子208的内层转子210旋转,而外层转子204紧靠外层定子202旋转。将诸如来自电池或交流发动机(未示出)的电流的DC电源施加于内层定子208产生DC场,以建立当转子构件212旋转时在内层转子210中感生交变电流的场通信。内层转子210中的交变电流流过旋转整流器组件206,以在外层转子204中产生直流电流。外层转子204中的直流电流产生DC场,以建立当转子构件212旋转时在外层定子202中感生交变电流的场通信。能经由外部输出整流器组件将外层定子202中的AC转变成DC。因此,电机102能将驱动轴214的机械旋转转变成高压DC电源。
如在图2中所能见到的,外层定子202、外层转子204、内层定子208、和内层转子210围绕中心轴线216共心布置,使得内层定子208与内层转子210相对于外层定子202和外层转子204围绕电机102的中心轴线216径向嵌套。当将电机102插在发动机104与传动装置106之间并附连在耦联点108时,该构造对图1的传动系统的总长度产生最小限度的影响。
在本发明的范围内,嵌套层隔开时嵌套转子和定子延伸离开驱动轴214的顺序能够改变。例如,如图2中所描绘的,内层转子210与中心轴线216之间的径向距离可小于内层定子208与中心轴线216之间的径向距离。作为替代构造,例如,对换如图2所描绘的内层定子208与内层转子210的相对位置,内层转子210与中心轴线216之间的径向距离可大于内层定子208与中心轴线216之间的径向距离。以相似的方式,如图2中所描绘的,外层转子204与中心轴线216之间的径向距离可小于外层定子202与中心轴线216之间的径向距离。相反地,外层转子204与中心轴线216之间的径向距离可大于外层定子202与中心轴线216之间的径向距离。
为了冷却并润滑电机102的部件,将混合级联润滑及冷却系统200结合到电机102中。取油管220响应油泵222从油槽224汲取油。油沿油泵进油管226被汲取至油泵222,并继续至油泵出油管228。油可从油泵出油管228经由外管道110流向图1的ERFA 112,在该ERFA 112的位置从油吸取热并过滤油。冷却并滤过的油返回至电机102,以便在冷却芯230中用于分配。转子构件212旋转的离心泵送作用驱使油遍及电机102。尽管在图2中仅描绘了单个油泵222,但能将多个油泵222的实例用于冗余并保持各油泵222的尺寸紧凑。可将各种类型的泵、诸如叶片泵、活塞泵、或离心式正排量泵用于实现油泵222。此外,可将内部或外部结合的主泵或单独的泵用于使油从油槽224运动至图1的ERFA 112。
电机102的替代实施方式包括永磁发电机和/或永磁马达、感应发电机和/或感应马达、以及开关磁阻发电机和/或开关磁阻马达。在这些替代实施方式中,尽管仍维持电机102的嵌套层,但可排除或替换外层定子202、外层转子204、旋转整流器组件206、内层定子208、和/或内层转子210中的一个或多个。例如,转子构件212可使两个单独的永磁发电机在驱动轴214上的嵌套成为可能,其中混合级联润滑及冷却系统200提供润滑和冷却。
图3图解电机102中结合的管道的示例性实施方式的侧视图。如图3中所能见到的,两个油泵222可利用分支成两根油泵进油管226的取油管220从油槽224汲取油。油泵222是正排量油泵,所述油泵222可经由齿轮传动由图2的驱动轴214驱动,以从油槽224提升油,并将油泵取至图1的ERFA 112。油从各油泵222流向相应的油泵出油管228,并流向将油流合并以用于图1的ERFA 112的端口302。在图2的冷却芯230处接收从图1的ERFA 112返回的油,在该冷却芯230的位置,将油分配在电机102内,并最终返回至油槽224。
图4图解用于电机102的混合级联润滑及冷却系统400。混合级联润滑及冷却系统400代表图2的混合级联润滑及冷却系统200的实施方式的详细视图。如图4中所图解的,油在端口402处进入电机102并进入到冷却芯230中,以便分配。可在端口402处从图1的ERFA 112接收油。冷却芯230中的油的一部分流向端口404以冷却电机102的热交换器406,然后,油回到图2和3的油槽224。油还沿冷却芯230向下流向端口408和410。在端口408处,油离开冷却芯230,并被喷射到轴承412、齿轮414上,并被喷射到为轴承418供应油的离心储存器416中。齿轮414可用于驱动图2和3的一个或多个油泵222。
轴承412和418使得电机102能够自我支撑。在替代实施方式中,图1的发动机104的曲轴直接耦联至转子构件212,其中转子构件212用作用于发动机104的飞轮。在该实施方式中,由于发动机104中的曲轴轴承可足以支撑转子构件212的旋转,所以可省略轴承412和418。外层定子202和内层定子208可直接耦联至发动机104。因此,如果省略轴承412和418,则油不喷射在轴承412和418上。这样的实施方式还可省去离心储存器416。
在端口408处,冷却油离开冷却芯230,并被喷射到内层离心储存器420中。在该内层离心储存器420中,通过转子构件212旋转的离心泵送作用加压油,并将引导油经内层转子210的绕组422流过,以向内层转子210提供冷却油流。油在沿转子构件212的转子绕组保持带426的周边通过内部径向孔424之前聚集在内层离心储存器420中。油还聚集在内层离心储存器428中,以冷却内层转子210。
油从内层离心储存器428喷射至经过内层定子208的绕组430,以向内层定子208提供冷却油流。当油离开内层定子208时,其由外层离心储存器432和外层离心储存器434收集。外层离心储存器432还在端口410处从冷却芯230接收补充的冷却油。外层离心储存器432处的油在流过转子构件212中的外部径向孔436之前,通过转子构件212旋转的离心泵送作用被重新加压。当油流过外部径向孔436时,引导油以沿外层转子204的绕组438流过,以便向外层转子204提供冷却油。
油在离开外层转子204并喷射在外层定子202的绕组440上之前,被收集在外层离心储存器434中。如图2和3中所描绘的,在将油喷射在绕组440上之后,通过重力迫使油回到电机102的油槽224。
使油能够从油槽224流向图1的ERFA 112并在电机102内分配油的部件的组合形成混合级联润滑及冷却系统400。然而,在混合级联润滑及冷却系统400中不需要包括ERFA 112。电机102内的油分配利用转子构件212旋转的离心泵送作用,以提供使油遍及电机102流动的原动力。输送至电机芯442的油通过内部径向孔424被收集并转到电机102的内部嵌套层444。朝外部嵌套层446离心泵送内部嵌套层444中的油,其中在油通过外部径向孔436转到外部嵌套层446之前,从端口410添加补充的油。内部嵌套层444可包括内层定子208和内层转子210,而外部嵌套层446可包括外层定子202和外层转子204。相对于外部嵌套层446围绕电机102的中心轴线216径向地嵌套内部嵌套层444。在替代实施方式中,内部嵌套层444和外部嵌套层446可包括诸如磁体而非利用绕组的其它的场生成部件。另外,内部嵌套层444和外部嵌套层446可以是电独立的,以便从电机102产生单独的电压输出。
当油在离心储存器之间运动时,油在内层离心储存器420和428与外层离心储存器432和434之间的流动用作级联冷却架。在电机102内的转子构件212的几何形状形成内层离心储存器420和外层离心储存器432,它们供应内部径向孔424和外部径向孔436,以径向向外离心地传输油。内部径向孔424和外部径向孔436将油从内层离心储存器420和外层离心储存器432引导至相应的热源,以便冷却和润滑。
图5描绘了用于在具有嵌套层的电机中、诸如图1-4的电机102中产生混合级联润滑及冷却系统400的过程500。如上所述,相对于外部嵌套层446围绕电机102的中心轴线216径向地嵌套内部嵌套层444。内部嵌套层444可包括内层定子208和内层转子210。外部嵌套层446可包括外层定子202和外层转子204。
在图框502处,将油泵222耦联至油泵进油管226,以从油槽224汲取油。还可取决于期望的流率和尺寸约束使用附加的油泵222。例如,如图3中所描绘的,可将第二油泵222耦联至第二油泵进油管226,以从油槽224汲取油。可将第二油泵出油管228耦联至第二油泵222。可将图3的端口302耦联至油泵出油管228和第二油泵出油管228,以在将油流输送至图1的ERFA 112之前将来自油泵222和第二油泵222的油流合并。冷却芯230可接收从ERFA 112返回的油。
在图框504处,冷却芯230构造成在电机102内分配泵送的油。可通过耦联至冷却芯230的端口404引导油,以冷却电机102的热交换器406。还可通过耦联至冷却芯230的端口408引导油,以冷却和润滑电机102的轴承412和齿轮414。端口408可将油供应至离心储存器416,该离心储存器416继而向轴承418供应油。端口408还能将油供应至内部嵌套层444的内层离心储存器420。还可将端口410耦联至冷却芯230,其中端口410提供流动路径,以在外部嵌套层446的外层离心储存器432处将补充的油与来自内部嵌套层444的油合并。
在图框506处,将转子构件212耦联至内部嵌套层444和外部嵌套层446。例如,可将转子构件212耦联至内层转子210和外层转子204。转子构件212构造成在围绕电机102的中心轴线216的旋转时,通过转子构件212中的内部径向孔424和外部径向孔436从冷却芯230离心地泵送油。内部径向孔424为油提供从内层离心储存器420通过内部嵌套层444的流动路径,所述油能冷却和润滑内层定子208和内层转子210。外部径向孔436为油提供从外层离心储存器432通过外部嵌套层446的流动路径,所述油能冷却和润滑外层定子202和外层转子204。转子构件212的旋转提供离心泵送力,以级联从电机芯442到内部嵌套层444并到外部嵌套层446的油。
如在此所描述的,将经由图5的过程500生产的混合级联润滑及冷却系统400结合到电机102中。电机102可经由耦联点108一列式(inline)连接在传动系统100上,例如,以便将电机102耦联至图1的发动机104和传动装置106。发动机104、电机102、和传动装置106可由图2的驱动轴214驱动。可将内层转子210、内层定子208、外层转子204、以及外层定子202的各种布置用于将部件设置成更靠近或更远离中心轴线216。保持具有较高的质量的部件靠近中心轴线216可影响电机102的转动惯量及其它设计/性能参数。
技术效果包括为具有嵌套层的传动系统可安装型电机提供冷却和润滑。电机的内层和外层的嵌套设计在与图2和4所图解的离心储存器的几何形状一起使用时,使得能够以较短的轴向长度包装高能量密度的电机。通过组合使用若干个正排量泵以提供具有嵌套层的离心泵送作用的吸力形成了具有高可靠性的混合级联润滑及冷却系统,以润滑和冷却电机。
尽管仅结合有限数量的实施方式详细描述了本发明,但应容易理解的是,本发明不局限于这些公开的实施方式。相反地,能修改本发明,以结合此前未描述、但与本发明的精神和范围等同的许多变体、变更、替换或等同的布置。另外,尽管已描述了本发明的各种实施方式,但应理解的是,本发明的方面可仅包括所描述的实施方式中的某些实施方式。因此,本发明不被看作由以上的说明限制,而是仅由所附权利要求的范围限制。

Claims (20)

1.一种用于电机(102)的混合级联润滑及冷却系统(200、400),所述电机(102)包括内部嵌套层(444)和外部嵌套层(446),其中相对于所述外部嵌套层(446)围绕所述电机(102)的中心轴线(216)径向地嵌套所述内部嵌套层(444),所述混合级联润滑及冷却系统(200、400)包括:
油泵(222),其耦联至油泵进油管(226),以从油槽(224)汲取油;
冷却芯(230),其构造成在所述电机(102)内分配泵送的油;以及
转子构件(212),其耦联至所述电机(102)的所述内部嵌套层(444)和所述外部嵌套层(446),所述转子构件(212)构造成在围绕所述电机(102)的所述中心轴线(216)的旋转时,通过所述转子构件(212)中的内部径向孔(424)和外部径向孔(436)从所述冷却芯(230)离心地泵送油。
2.根据权利要求1所述的混合级联润滑及冷却系统(200、400),还包括耦联至所述冷却芯(230)以向所述电机(102)的热交换器(406)引导油的端口(404)。
3.根据权利要求1所述的混合级联润滑及冷却系统(200、400),还包括耦联至所述冷却芯(230)以向所述电机(102)的第一轴承(412)和齿轮(414)引导油的端口(408)。
4.根据权利要求3所述的混合级联润滑及冷却系统(200、400),其中,所述端口(408)向离心储存器(416)供应油,而所述离心储存器(416)向所述第二轴承(418)供应油。
5.根据权利要求3所述的混合级联润滑及冷却系统(200、400),其中,所述端口(408)向所述内部嵌套层(444)的内层离心储存器(420)供应油。
6.根据权利要求5所述的混合级联润滑及冷却系统(200、400),其中,所述内部径向孔(424)为油提供从所述内层离心储存器(420)通过所述内部嵌套层(444)的流动路径。
7.根据权利要求1所述的混合级联润滑及冷却系统(200、400),还包括耦联至所述冷却芯(230)的端口(410),其中,所述端口(410)提供在所述外部嵌套层(446)的外层离心储存器(432)处将补充的油与来自所述内部嵌套层(444)的油合并的流动路径。
8.根据权利要求7所述的混合级联润滑及冷却系统(200、400),其中,所述外部径向孔(436)为油提供从所述外层离心储存器(432)通过所述外部嵌套层(446)的流动路径。
9.根据权利要求1所述的混合级联润滑及冷却系统(200、400),还包括将油流从所述油泵(222)输送至热交换器/安全阀/过滤器组件(ERFA)(112)的油泵出油管(228),其中,所述冷却芯(230)接收从所述ERFA(112)返回的油。
10.根据权利要求9所述的混合级联润滑及冷却系统(200、400),还包括:
第二油泵(222),其耦联至第二油泵进油管(226),以从所述油槽(224)汲取油;
第二油泵出油管(228),其耦联至所述第二油泵(222);以及
端口(302),其在所述ERFA(112)之前将来自所述油泵出油管(228)和所述第二油泵出油管(228)的油流合并。
11.一种为电机(102)产生混合级联润滑及冷却系统(200、400)的方法,所述电机(102)包括内部嵌套层(444)和外部嵌套层(446),其中相对于所述外部嵌套层(446)围绕所述电机(102)的中心轴线(216)径向地嵌套所述内部嵌套层(444),所述方法包括:
将油泵(222)耦联至油泵进油管(226),以从油槽(224)汲取油;
构成冷却芯(230),以在所述电机(102)内分配泵送的油;以及
将转子构件(212)耦联至所述电机(102)的所述内部嵌套层(444)和所述外部嵌套层(446),所述转子构件(212)构造成在围绕所述电机(102)的所述中心轴线(216)的旋转时,通过所述转子构件(212)中的内部径向孔(424)和外部径向孔(436)从所述冷却芯(230)离心地泵送油。
12.根据权利要求11所述的方法,还包括通过耦联至所述冷却芯(230)的端口(404)向所述电机(102)的热交换器(406)引导油。
13.根据权利要求11所述的方法,还包括通过耦联至所述冷却芯(230)的端口(408)向所述电机(102)的第一轴承(412)和齿轮(414)引导油。
14.根据权利要求13所述的方法,其中,所述端口(408)向离心储存器(416)供应油,而所述离心储存器(416)向所述第二轴承(418)供应油。
15.根据权利要求13所述的方法,其中,所述端口(408)向所述内部嵌套层(444)的内层离心储存器(420)供应油。
16.根据权利要求15所述的方法,其中,所述内部径向孔(424)为油提供从所述内层离心储存器(420)通过所述内部嵌套层(444)的流动路径。
17.根据权利要求11所述的方法,还包括将端口(410)耦联至所述冷却芯(230),其中,所述端口(410)提供在所述外部嵌套层(446)的外层离心储存器(432)处将补充的油与来自所述内部嵌套层(444)的油合并的流动路径。
18.根据权利要求17所述的方法,其中,所述外部径向孔(436)为油提供从所述外层离心储存器(432)通过所述外部嵌套层(446)的流动路径。
19.根据权利要求11所述的方法,还包括将油泵出油管(228)耦联至所述油泵(222),以将油输送至热交换器/安全阀/过滤器组件(ERFA)(112),其中,所述冷却芯(230)接收从所述ERFA(112)返回的油。
20.根据权利要求19所述的方法,还包括:
将第二油泵(222)耦联至第二油泵进油管(226),以从所述油槽(224)汲取油;
将第二油泵出油管(228)耦联至所述第二油泵(222);以及
将端口(302)耦联至所述油泵出油管(228)和所述第二油泵出油管(228),以在将所述油流输送至所述ERFA(112)之前,将来自所述油泵(222)和所述第二油泵(222)的油流合并。
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