CN101660607B - 变速器驱动电机的密封件 - Google Patents

变速器驱动电机的密封件 Download PDF

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CN101660607B
CN101660607B CN2009101674833A CN200910167483A CN101660607B CN 101660607 B CN101660607 B CN 101660607B CN 2009101674833 A CN2009101674833 A CN 2009101674833A CN 200910167483 A CN200910167483 A CN 200910167483A CN 101660607 B CN101660607 B CN 101660607B
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sealing
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CN101660607A (zh
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T·J·赖因哈特
G·W·肯普夫
W·S·里德
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/12—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering
    • F16J15/121—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing with metal reinforcement or covering with metal reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT 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
    • B60K6/00—Arrangement 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
    • B60K6/20—Arrangement 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
    • B60K6/22—Arrangement 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
    • B60K6/36—Arrangement 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 transmission gearings
    • B60K6/365—Arrangement 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 transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60K6/00—Arrangement 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
    • B60K6/20—Arrangement 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
    • B60K6/22—Arrangement 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
    • B60K6/40—Arrangement 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 assembly or relative disposition of components
    • B60K6/405—Housings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT 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
    • B60K6/00—Arrangement 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
    • B60K6/20—Arrangement 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
    • B60K6/42—Arrangement 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 the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Abstract

本发明涉及一种变速器驱动电机的密封件。本发明提供了一种用于用在自动变速器壳体与变速器驱动电机壳体(罐)之间的改进型密封件。驱动电机壳体的每端都设有一个密封件，所述密封件包括优选为金属的环，所述环具有固定在其上的带肋的内外弹性密封件。所述环在截面限定了非硬化的“S”形状，所述环保持密封件的形状和强度，并且带肋的内密封件给电机壳体提供了流体密封，而带肋的外密封件给变速器壳体提供了流体密封。

Description

变速器驱动电机的密封件
技术领域
本发明涉及流体密封结构，尤其涉及用于驱动电机壳体与自动变速器壳体之间的安装的流体密封件。
背景技术
这一部分的内容仅仅是提供与本公开相关的背景技术，并不构成现有技术。
现代客车和卡车的混合动力自动变速器常常利用高扭矩电机在某些操作模式上作为唯一能源，在其它操作模式下连同汽油机、柴油机或可变燃料发动机一起操作。因为这些电动机长期产生大量的机械能，同时消耗相应量的电能，所以它们产生大量的热。为了保持适当的低操作温度，必须散去这种热，通常通过绕着电机壳体的热交换介质的循环散热。给定变速器流体的可用性、它的循环和排热系统及其公知的热交换功能，这对该需求是显然的通用解决方案。
因为自动变速器中几乎到处都有增压的或未增压的移动流体，所以第一方案可能出现将电机简单地暴露于在变速器中循环的流体。实际上，这种在变速器内任意给定位置的流体循环可能依据变速器的当前操作状态极大地变化，并且这种流体循环在特定条件下包括电机冷却。因此，显然期望受控制的专用变速器流体流来冷却电机。
但是，由于在占用大部分或全部变速器截面的大型电机的所有操作情形下保持较低电机温度的重要性，以及确定地提供流体流和控制流体流量的需要，利用专用变速器流体流来冷却的选择产生了一系列新的工程难题。第一个难题涉及电机可能占据变速器的全部或大部分截面的事实。这产生了流体分配到电机和在电机中分布的困难。该难题的一种解决方案是向电机壳体与变速器壳体内部之间布置的环形通道提供增压流体。电机壳体中的径向孔将流体引导到电机部件，例如绕组，以吸收和带走热量。相关的难题包括在变速器壳体和电机壳体之间提供安全的流体密封，使得可获得通过电机及其绕组的一致的、受控制的变速器流体流动。
一种获得变速器壳体与驱动电机壳体之间的密封的现有技术是利用布置在绕着电机壳体的圆周延伸的通道中的O形圈，其接合变速器壳体中配套定位并构造成圆形的肩部或表面。尽管这种布置提供了可接受的密封，但是它会经历组装的变化。例如，由于O形圈是安装在电机壳体的外侧，所以它们在安装电机之前或期间可能会被意外地碰动。另外，如果在安装电机期间O形圈与(例如)变速器壳体的锐边接触，那么会对O形圈产生微小的可能无法检测到的破坏，导致初始或过早的密封故障。另外，由于O形圈相对于电机总成的体积小，所以组装O形圈的校验非常困难。这使得无法在将O形圈安装进主壳体之前使用可视系统确保O形圈处在适当的位置。
从前面现有驱动电机/变速器密封技术的回顾来看，显然该领域期望改进。
发明内容
本发明提供了一种自动变速器壳体与变速器驱动电机的壳体(罐)之间的改进密封件。驱动电机壳体的每端都设有一个密封件，所述密封件包括金属环，所述金属环具有粘结在其上的带肋的内外弹性密封件。金属环在截面限定了非硬化的“S”形状，所述环保持密封件的形状和强度，并且带肋的内密封件给电机壳体提供了流体密封，而带肋的外密封件给变速器壳体提供了流体密封。在预装配构造中，根据本发明的电机密封件不是被安装在电机壳体的外侧，而是被安装到变速器壳体内，电机密封件在该变速器壳体中受到保护以避免损坏，然后驱动电机才被安装到变速器中。根据本发明的电机壳体密封件提供了提高的正确安装的便易性和可靠性，以及降低了安装过程中对密封件的损坏的可能性，因而减少了以后的故障和维修。
因此，本发明的目的是提供一种用于布置在电机壳体与自动变速器壳体之间的密封件。
本发明的另一目的是提供一种用于布置在电机壳体外侧与自动变速器壳体内侧之间的密封件。
本发明的另一目的是提供一种用于布置在电机壳体与自动变速器壳体之间的环形密封件，其具有金属环和粘结在该环上的弹性密封部分。
本发明的另一目的是提供一种用于布置在电机壳体与自动变速器壳体之间的密封件，其具有金属环和粘结在该环上的带肋的弹性部分。
本发明的再一目的是提供一种用于布置在电机壳体的外侧与自动变速器壳体的内侧之间的环形密封件，其具有金属环和粘结在该环上的带肋的弹性部分。
从本文提供的描述可清楚其适用性的其它目的、优点和方面。应当理解，其详细描述和具体实例仅仅是示意性目的，而不是限制本公开的范围。
附图说明
本文所示的附图仅仅是示意性目的，而不是以任何方式限制本公开的范围。
图1为包括本发明的自动变速器的局部侧视图；
图2为具有根据本发明的前后密封件的电机壳体的透视图；
图3为具有根据本发明的前后密封件的自动变速器的电动电机壳体的放大侧视图；以及
图4为根据本发明的控制电机壳体和密封件的放大透视图。
具体实施方式
实质上，下面的描述仅仅是示意性的，而不是限制本发明及其应用或使用。
参考图1，示出了自动车辆变速器的一部分，由附图标记10表示。自动变速器10包括通常为铸铁的壳体12，该壳体12支撑、定位和保护各种内部元件，例如输入轴(未示出)、主输出轴14、一个或多个行星齿轮组件16(示出了其中一个)、多个电引线或连接器18(示出了其中一个)、电机组件20以及液力叶轮泵或盖劳特泵(未示出)。应当理解，虽然自动变速器10中只示出了一个电机组件20，但是其中可含有不只一个，本发明同样适于使用更多的电机组件。
现在参考图1和2，电机组件20包括通常为管状或圆柱状的壳体22，该壳体22围绕具有电场绕组26的定子24。支撑在一对耐摩擦支撑装置(例如滚珠轴承组件30)上的转子28可旋转地布置在壳体22和定子24内。滚珠轴承组件又支撑在管状元件或轴承支撑32上，该管状元件或轴承支撑32用焊接连接到圆柱形电机壳体22。转子28通过内外花键毂34或类似的元件联接到主轴14上。
圆柱形电机壳体22包括在壳体22的上部以前后周向排列布置的多个径向定向的润滑油通道或孔36。圆柱形电机壳体22还包括两个或更多的定位片或突起38，该定位片或突起38接合自动变速器10中配套布置的槽或凹槽(未示出)。所述槽和突起38在尺寸上确保圆柱形电机壳体22被恰当地定向，即，当电机壳体安装在自动变速器10内时，润滑油通道或孔36在自动变速器10的顶部。
现在参考图2和3，电机壳体22的外表面附近布置有一对根据本发明的密封件40。前密封件或第一密封件40A沿着圆柱形电机壳体22的前边缘或第一边缘在润滑油通道36外侧定位，第二密封件或后密封件40B沿着圆柱形电机壳体22的第二边缘或后边缘同样在润滑油通道36外侧定位。换句话说，润滑油通道或孔36位于前密封件40A与后密封件40B之间的(轴向)区域中。
现在参考图3和4，应当理解，要不是它们不同的直径，前密封件40A和后密封件40B就会具有相同的截面。因此，由于其描述具有与后密封件40B相同的精度，所以在图4中，仅示出了前密封件40A。前密封件40A包括中心金属带或环42，该中心金属带或环42形成为具有第一端44的非硬化“S”形，所述第一端44弯曲或向内形成直角(90°)，使得环42的第一端面46平行于圆柱形壳体22的轴线，并从环42的内表面48向内延伸。环的另一端或第二端50弯曲或向外形成，使得第二端面52也平行于圆柱形壳体22的轴线，但是与环42的外表面54基本上平齐或共面。密封件40A中金属带或环42的形状给密封件40A提供了刚度和尺寸稳定性。
为例如弹性材料的第一弹性内密封件62通过任何适当的粘结或紧固技术在应有位置上模制或粘结到环42的内表面48上，所述第一弹性内密封件62具有两个或多个肋64，所述肋64接触和密封圆柱形电机壳体22的外侧。同样为例如弹性材料的第二弹性内密封件66通过任何适当的粘结或紧固技术在应有位置上模制或粘结到环42的外表面54上，所述第二弹性内密封件66具有三个或更多的肋68，所述肋68接触和密封变速器壳体12的内表面。
图3的观察显示了密封件40A和40B通过第一端面46来定向，并且金属带42的第一端面46远离圆柱形电机壳体22的敞开端，金属带42的第二端面52更加靠近圆柱形电机壳体22的敞开端。图4的观察显示了，因为在装配期间，粘结过程金属带42的非密封部分需要浇口工艺，所以环42的第一端面46优选是暴露的，这有助于恰当地定位电机壳体22，而环42的第二端面52优选被一薄层弹性材料覆盖或包围，以确保弹性材料恰当地粘结到金属带42上。
参考图1，应当理解，前密封件40A和后密封件40B限定了绕着电机壳体22而在电机壳体22与变速器壳体12的内表面之间周向延伸的环形腔或区域70。该圆周区域70通过自动变速器10的液压泵来增压，液压流体以低压注入圆周区域70，通过润滑油通道或孔36，并通过孔36来引导并接触电机绕组26。电机绕组26中产生的热量被液压流体带走，通过变速器流体冷却器(未示出)散到大气中。
本发明的描述实质上仅仅是示意性的，不脱离本发明要旨的变形也落在本发明的范围内。这种变形并不被认为脱离本发明或所附权利要求的实质和范围。

Claims (20)

1.一种用于自动变速器中驱动电机的密封件，该驱动电机包括圆柱形壳体，所述密封件布置在电机的圆柱形壳体外侧与自动变速器壳体内侧之间，包括：
环，该环具有内表面、外表面、第一端和与所述第一端轴向间隔开的第二端，所述第一端具有向内弯曲部分和布置在该向内弯曲部分末端的第一端面，该第一端面平行于圆柱形壳体的轴线，所述第二端具有向外弯曲部分；固定到所述外表面的外密封件；和固定到所述内表面的内密封件；
其中所述第一端面是暴露的以便有助于定位电机的圆柱形壳体。
2.如权利要求1所述的驱动电机密封件，其中所述外密封件包括多个肋。
3.如权利要求2所述的驱动电机密封件，其中所述外密封件包括四个肋。
4.如权利要求1所述的驱动电机密封件，其中所述内密封件包括多个肋。
5.如权利要求4所述的驱动电机密封件，其中所述内密封件包括两个肋。
6.如权利要求1所述的驱动电机密封件，其中所述第一端向所述内密封件的径向内侧延伸。
7.如权利要求1所述的驱动电机密封件，其中所述第二端被所述外密封件覆盖。
8.一种用于自动变速器中驱动电机的密封件，该驱动电机包括圆柱形壳体，所述密封件布置在电机的圆柱形壳体外侧与自动变速器壳体内侧之间，包括：
金属环，该金属环具有外表面、内表面、第一端和与所述第一端轴向间隔开的第二端，所述第一端具有向内弯曲部分和布置在该向内弯曲部分末端的第一端面，其中该第一端面布置成平行于圆柱形壳体的轴线，所述第二端具有向外弯曲部分；固定到所述外表面的外密封件；和固定到所述内表面的内密封件，
其中所述第一端的所述向内弯曲部分径向向内延伸超过所述内密封件以便所述第一端面是暴露的以便有助于定位电机的圆柱形壳体。
9.如权利要求8所述的驱动电机密封件，其中所述向外弯曲部分被包围在所述外密封件内。
10.如权利要求8所述的驱动电机密封件，其中所述第一端面布置为平行于所述环的轴线。
11.如权利要求8所述的驱动电机密封件，其中所述第二端包括平行于所述环的轴线的第二端面。
12.如权利要求8所述的驱动电机密封件，其中所述外密封件包括至少两个肋。
13.如权利要求8所述的驱动电机密封件，其中所述内密封件包括至少两个肋。
14.一种用于自动变速器的密封组件，包括：
具有多个润滑油孔的驱动电机壳体；
布置在电机壳体外侧与自动变速器壳体内侧之间的一对环形密封件，该密封件绕着所述电机壳体布置以限定与所述孔连通的周向流动通道，所述密封件每个都包括：环，所述环具有外表面、内表面、第一端和与所述第一端轴向间隔开的第二端；固定到所述外表面的外密封件；和固定到所述内表面的内密封件，其中所述第一端具有向内弯曲部分和布置在该向内弯曲部分末端的第一端面，所述第二端具有向外弯曲部分；
其中所述第一端面径向向内延伸超过所述内密封件，从而所述第一端面是暴露的以便定位电机壳体。
15.如权利要求14所述的密封组件，其中所述第一端向所述内密封件的径向内侧延伸。
16.如权利要求14所述的密封组件，其中所述第二端被包围在所述外密封件内。
17.如权利要求14所述的密封组件，其中所述外密封件包括至少两个肋。
18.如权利要求14所述的密封组件，其中所述内密封件包括至少两个肋。
19.如权利要求14所述的密封组件，其中，该变速器壳体具有与所述一对密封件接合的内表面。
20.如权利要求14所述的密封组件，其中所述环是金属的。
CN2009101674833A 2008-08-25 2009-08-25 变速器驱动电机的密封件 Expired - Fee Related CN101660607B (zh)

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