CN115191073A - 用于制动系统的驱动装置、制动系统 - Google Patents
用于制动系统的驱动装置、制动系统 Download PDFInfo
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Abstract
本发明涉及一种用于机动车的制动系统(1)的驱动装置(2),所述驱动装置具有壳体(14)、电机(13),所述电机具有可转动地支承的驱动轴(12),其中,驱动轴(12)通过布置在壳体(14)中的行星齿轮传动机构(8)与驻车制动器(1)的致动器元件(4)能连接或连接,其中,驱动轴(12)可转动地支承在布置在壳体(14)中的轴承盖(15)中。规定,轴承盖(15)由塑料制成。
Description
技术领域
本发明涉及一种用于机动车的制动系统的驱动装置,所述驱动装置具有壳体、电机,所述电机具有驱动轴,其中,驱动轴通过布置在壳体中的行星齿轮传动机构与驻车制动器的致动器元件可连接或连接,并且其中,驱动轴可转动地支承在布置在壳体中的轴承盖中。
此外,本发明涉及一种用于机动车的制动系统,所述制动系统具有壳体和致动器元件,在所述壳体中布置有电机,所述致动器元件能够通过所述电机驱动,其中,在所述致动器元件与所述电机之间中间连接有行星齿轮传动机构。
背景技术
开头所述类型的驱动装置由现有技术已知。随着机动车电气化程度的提高,制动系统也随之电气化。尤其是驻车制动器已经在系列车辆中电动驱动。为此存在驱动装置,所述驱动装置具有电机、尤其电动机,借助于所述电机例如驱动驻车制动器的驱动主轴以用于移动制动活塞。在此,为了通过制动活塞实现高的转矩或高的压紧力,在电动机和制动活塞之间中间连接有行星齿轮传动机构,所述行星齿轮传动机构作为变速传动机构起作用。电机的驱动轴在此尤其与行星齿轮传动机构的太阳轮抗扭地连接,并且驱动主轴与其行星齿轮架抗扭地连接。为了支承轴,所述轴例如通过滚动体轴承可转动地支承在布置在壳体中的轴承盖中。
发明内容
根据本发明的具有权利要求1的特征的驱动装置具有的优点是,通过轴承盖的有利的设计方案提供驱动装置的高度集成的构造方案,所述构造方案在小的结构空间上以稳健的方式和方法确保所有功能,其中,驱动装置的部件数量减少并且由此装配和制造时间减少,具有相应的成本优势。根据本发明,这通过以下方式实现:轴承盖由塑料制成。这具有的优点是,一方面轴承盖本身成本低廉地并且节省重量地构造,并且能够以很少的额外耗费补充轴承盖用于驱动装置的另外的功能或另外的元件。
根据本发明的一种有利的实施方式,轴承盖构成行星齿轮传动机构的空心轮。因此,行星齿轮传动机构的空心轮直接集成到轴承盖中,轴承盖也支承电机的驱动轴。通过轴承盖由塑料构成,空心轮能够借助简单的手段在制造时成本有利地集成到轴承盖中。因此,空心轮与轴承盖一体式地由塑料制成。
根据本发明的一种优选的改进方案,轴承盖具有至少一个钢环,该钢环由轴承盖的塑料材料至少部分地注塑包封。钢环加强和加固轴承盖,从而产生一种双组分构件,其一方面通过塑料的低重量来表征,并且另一方面至少部分地提供钢轴承盖所熟悉的坚固性。
特别优选地,钢环具有在整个圆周上延伸的增大的边缘区段,该边缘区段由轴承盖的塑料材料注塑包封。通过将增大的边缘区段注塑包封,轴承盖的塑料部分和钢环形状配合地相互连接。在此,塑料材料从后面接合钢环的边缘区段,由此实现特别牢固的连接。
优选地,钢环具有在整个圆周上延伸的、不含塑料材料的压入区段,该压入区段具有用于贴靠在壳体上的圆柱套筒形的周面。由于压入区段不含塑料材料,钢环作为轴承盖的承载件能够以有利的方式压入到壳体的相应的容纳部中,尤其不会由此损坏轴承盖的塑料材料。因此实现了一种功能分离,其中用于将轴承盖定向和保持在壳体中的保持力通过钢环提供,并且空心轮仅通过塑料材料提供。根据本发明的一种替代的实施方式,压入区段通过轴承盖本身形成并且因此由塑料制成。就此而言,根据该实施方式放弃钢环。根据本发明的另一实施方式,钢环优选完全由轴承盖的塑料包围、尤其是注塑包封。
尤其,压入区段的外径略大于用于轴承盖的壳体的容纳区段的内径,以便实现轴承盖或轴承盖的钢环与壳体之间的压配合。由此也确保了轴承盖在壳体中的简单装配。
此外优选规定,轴承盖具有至少一个容纳凹部和/或至少一个容纳凸起,用于将传感器、尤其是转子位置传感器布置在轴承盖上。通过容纳凹部和/或容纳凸起能够实现转子位置传感器在轴承盖上的有利的形状配合的布置,由此确保转子位置传感器在轴承盖上的简单的装配和稳健的布置。
特别优选地,容纳凹部和/或容纳凸起构造用于容纳传感器的圆环形的电路板。由此,传感器或其电路板尤其形状配合地能够布置和保持在容纳凹部中和/或容纳凸起上。因此可以省去附加的固定器件或布置器件。
特别优选地,轴承盖构成用于驱动装置的连接触点的插接接头、例如用于传感器的电接触。由此,在将轴承盖装配在驱动装置中时能够自动地建立与电机的电连接。特别地,插接接头具有从轴承盖轴向突出的套筒,该套筒与轴承盖一体式地构造,优选地具有插入倒角并且电机的连接触头能够引入到该插入倒角中。有利地,一个或多个电导线引导到套筒中,所述电导线在制造轴承盖时已经被轴承盖的塑料材料注塑包封。
根据本发明的一种优选的改进方案,在轴承盖的区段上布置有电路板,所述电路板承载或具有前述转子位置传感器。由此得到有利地紧凑的布置。尤其,电路板是转子位置传感器的组成部分,其中,在电路板上优选布置一个或多个线圈、尤其接收线圈和发送器线圈,其以分解器的形式连接,以便确定电机的转子的转子角位置。
根据本发明的具有权利要求10的特征的制动系统的特征在于根据本发明的驱动装置。由此得到已经提到的优点。
附图说明
在下文中,本发明将借助于附图更详细地阐述。
图1以简化的纵截面图示出了有利的驻车制动器,
图2以简化的截面图示出了驻车制动器的轴承盖。
具体实施方式
图1以简化的纵截面图示出了用于在此未详细示出的机动车的有利的制动系统1。制动系统1具有驱动装置2,该驱动装置与驻车制动器的致动器3作用连接。致动器3尤其具有致动器元件4,所述致动器元件当前呈制动活塞或液压活塞的形式,所述致动器元件能够通过主轴驱动器5轴向移动。主轴驱动器5的构造为空心主轴的驱动主轴6与行星齿轮传动机构8的行星齿轮架7连接。可转动地支承在行星齿轮架7上的行星齿轮9与行星齿轮传动机构8的太阳轮10和空心轮11共同作用。在此,太阳轮10抗扭地与驱动装置2的电机13的驱动轴12连接。
驱动装置2还具有壳体14,电机13以及行星齿轮传动机构8布置在壳体中。此外,在壳体14中布置有轴承盖15,该轴承盖具有第一轴承区段16,在该第一轴承区段中当前布置有滚动体轴承17,该滚动体轴承与驱动轴12作用连接。特别地,滚动体轴承的内环抗扭地与驱动轴12连接,而滚动体轴承17的外环抗扭地保持在轴承盖15的区段16上。
在跟随第一区段的第二区段18中,轴承盖15构成行星齿轮传动机构8的空心轮11,所述第二区段的内径大于第一区段16的内径。空心轮11因此集成地构造在轴承盖15中。
图2示出了轴承盖15的透视截面图。轴承盖15基本上由塑料制成,由此在制造轴承盖时尤其能够成本有利地实现空心轮11与轴承盖15的一体式构造。在轴承盖15的区段18和区段16之间,轴承盖15通过直径变化构成阶梯,该阶梯构成为环形盘区段19。在区段18的背离区段16的一侧上同样构造有轴承盖的环形盘区段20,该环形盘区段从空心轮11径向向外延伸。
在环形盘区段的外周上,给环形盘区段20配属有钢环21。该钢环具有L形横截面,其中,支腿22伸入到环形盘区段20中并且被轴承盖15的塑料材料注塑包封或包围。L形钢环21的另一支腿23从环形盘区段20沿轴向向前延伸,更确切地说沿轴承盖15的背离区段18和16的一侧的方向延伸。在支腿22被塑料材料包围期间,钢环21的支腿23是无塑料的并且在其外侧24上构成轴承盖15的压入区段25。在此,压入区段25的外径略大于驱动装置2的壳体14的容纳区段26的内径,从而轴承盖与钢环21可压入到壳体14中并且如图1中示出的那样优选被压入。
如在图2中进一步示出的那样,区段19优选还配属有转子位置传感器27,所述转子位置传感器具有圆环形的电路板28,所述电路板在区段19的与圆环形的轴承盖15同轴地构造的容纳凹部29中在背离空心轮11的一侧上插入并且由此形状配合地保持在轴承盖15上。电路板28尤其承载发射器线圈和接收器线圈,所述发射器线圈和接收器线圈通过计算单元运行,以便通过感应确定或监控电机13的转子的转子角位置。
可选地,轴承盖15还具有连接装置30,转子位置传感器27可通过该连接装置电接触。为此,连接装置30构造为从区段20突出的插接接头31,其中,电导线32从插接接头31引导穿过轴承盖的塑料材料直至用于电接触传感器27的区段19。电导线32尤其在制造轴承盖时已经被塑料材料包围或注塑包封。插接接头31尤其具有轴向地从环形盘区段20突出的套筒,该套筒与轴承盖15一体式地构造,并且电机的配合触头或连接触头尤其在轴承盖15装配在壳体14中时能够引入到该套筒中,以便电接触传感器27。
根据在此未示出的另一实施例,钢环21完全由轴承盖15的塑料材料包围。也可以考虑的是,在没有钢环21的情况下构造轴承盖15,使得压入区段25仅通过轴承盖15的塑料材料制成。也可以考虑,空心轮11作为单独的元件布置在轴承盖15中,从而空心轮也可以由与轴承盖15不同的材料制成。
Claims (11)
1.一种用于机动车的制动系统(1)的驱动装置(2),所述驱动装置具有壳体(14)、电机(13),所述电机具有能转动地支承的驱动轴(12),其中,所述驱动轴(12)通过布置在所述壳体(14)中的行星齿轮传动机构(8)与所述驻车制动器(1)的致动器元件(4)能连接或连接,其中,所述驱动轴(12)能转动地支承在布置在所述壳体(14)中的轴承盖(15)中,其特征在于,所述轴承盖(15)由塑料制成。
2.根据权利要求1所述的驱动装置,其特征在于,所述轴承盖(15)构成所述行星齿轮传动机构(8)的空心轮(11)。
3.根据前述权利要求中任一项所述的驱动装置,其特征在于,所述轴承盖(15)具有至少一个钢环(21),所述钢环由所述轴承盖(15)的塑料材料至少部分地注塑包封。
4.根据前述权利要求中任一项所述的驱动装置,其特征在于,所述钢环(21)具有在整个圆周上延伸的增大的边缘区段,所述边缘区段由所述轴承盖(15)的塑料材料注塑包封。
5.根据前述权利要求中任一项所述的驱动装置,其特征在于,所述钢环(21)具有在整个圆周上延伸的、不含塑料材料的压入区段(25),所述压入区段具有圆柱套筒形的周面,用于贴靠在所述壳体(14)上。
6.根据前述权利要求中任一项所述的驱动装置,其特征在于,所述压入区段(25)的外径构造成略大于用于所述轴承盖(15)的壳体(14)的容纳区段(26)的内径,以便实现压配合。
7.根据前述权利要求中任一项所述的驱动装置,其特征在于,所述轴承盖(15)具有至少一个容纳凹部(29)和/或至少一个容纳凸起,用于将传感器、尤其是转子位置传感器(27)布置在所述轴承盖(15)上。
8.根据前述权利要求中任一项所述的驱动装置,其特征在于,用于容纳所述传感器的圆环形的电路板(28)的容纳凹部(29)和/或所述容纳凸起圆环形地构造。
9.根据前述权利要求中任一项所述的驱动装置,其特征在于,所述轴承盖(15)具有与所述轴承盖(15)一体式地构造的并且轴向地从所述轴承盖(15)突出的、尤其用于电接触所述电机(13)的插接接头(31)。
10.根据前述权利要求中任一项所述的驱动装置,其特征在于,在所述容纳凹部(25)中布置有圆环形的电路板(28),所述电路板具有转子位置传感器(27)。
11.一种用于机动车的制动系统(1),所述制动系统具有壳体(14)和致动器元件(4),在所述壳体中布置有电机(13),所述致动器元件能够通过所述电机(13)驱动,其中,在所述致动器元件(4)和所述电机(13)之间中间连接有行星齿轮传动机构(8),其特征在于构造根据权利要求1至10中任一项所述的驱动装置。
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