CN113167595A - 包括两个不同类型的旋转角度传感器的传感器布置 - Google Patents
包括两个不同类型的旋转角度传感器的传感器布置 Download PDFInfo
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Abstract
本发明涉及一种传感器组件,所述传感器组件包括两个不同类型的旋转角度传感器,所述传感器组件具有转子(2)和定子(1),所述两个不同类型的旋转角度传感器中的第一旋转角度传感器具有由所述定子(1)构成的天线(12)以及由所述转子(2)构成的调制器(22),并且所述两个不同类型的旋转角度传感器中的第二旋转角度传感器具有由所述转子(2)构成的磁体(23)以及由所述定子(1)构成的磁阻元件(13)或者霍尔传感器。
Description
技术领域
本发明涉及一种传感器组件,所述传感器组件包括两个不同类型的旋转角度传感器,所述传感器组件具有转子和定子,第一旋转角度传感器具有由所述定子构成的天线以及由所述转子构成的调制器,并且第二旋转角度传感器具有磁体以及由所述定子构成的磁阻元件或霍尔传感器。
背景技术
从公开号为EP 2 180 296A1的文件已知这样的传感器布置。该传感器布置的转子经由齿轮联接至第二转子。该第二转子承载第二旋转角度传感器的磁体。所述第二旋转角度传感器的磁阻元件布置于所述定子上,所述定子为用于所述第一旋转角度传感器和所述第二旋转角度传感器的共用的定子。代替所述磁阻元件,可以使用霍尔传感器。
通过经由齿轮机构联接两个转子,第一转子的旋转运动被传递至所述第二转子。所述齿轮被设计成使得所述第二转子具有比所述第一转子高的旋转速度。因此,当所述第一转子旋转第一角度时,所述第二转子旋转不同的角度。这导致传感器信号的评估的高度复杂性。另外,借助于齿轮机构进行的运动传递可能容易出错。例如,灰尘可能阻塞齿轮,从而阻止运动传递,并且在最坏的情况下,甚至损坏或破坏齿轮。
已知的传感器布置的另一个缺点是,需要较大的安装空间来容置两个转子。
发明内容
本发明基于的任务是创建在开始时所提到的类型的新的传感器布置,在所述传感器布置中可避免容易出错的运动传递并且可以以紧凑的方式容置两个旋转角度传感器。
根据本发明,通过转子包围磁体来解决该任务。代替两个转子,在本发明中设置仅仅一个转子。这消除通过齿轮机构进行的运动传递(具有上面所描述的所有缺点)。
根据本发明的传感器布置的转子可以具有轴,在所述轴的一个端处布置有磁体。所述磁体优选地附接至所述轴的一个端。
调制器也可以附接至所述轴。所述调制器可以设置于具有圆形表面的印刷电路板上,在所述圆形表面上设置有一个或多个导电轨道以形成所述调制器。所述印刷电路板中的孔可以具有对应于所述轴的外径的内径。所述调制器也可以为金属部件,例如通过冲压由金属板制成。所述调制器也可以为将对来自所述天线的信号进行调制的部件。
所述定子可以包括用于向第一和/或第二旋转角度传感器的元件供电的至少一个电气构件、特别地集成电路。还可以设置用于评估来自所述天线和所述磁阻元件或霍尔传感器的信号的至少一个电气构件、特别地集成电路。所述构件可以包含过滤器元件。
所述定子可以具有印刷电路板,在所述印刷电路板上设置有所述天线、所述磁阻元件或霍尔传感器以及至少一个电气构件。所述天线可以由一个或多个导电轨道形成。
所述磁阻元件或霍尔传感器可以在沿旋转轴线的方向的投影中位于与所述旋转轴线同心的圆盘内。
所述调制器可以在沿所述旋转轴线的方向的投影中位于与所述旋转轴线同心的圆环内。所述圆盘可以位于所述圆环内并且具有小于所述圆环的内径的外径。可以在所述圆盘与所述圆环之间设置区域,以防止所述第一旋转角度传感器与所述第二旋转角度传感器之间的相互干扰、特别地相互干涉。该区域在所述圆盘与所述圆环之间产生距离,所述距离一方面很大,大到能够可靠地避免干扰,另一方面很小,小到使得所述传感器布置的尺寸可以很小。在该区域中,优选地不存在导磁和/或导电材料,所述导磁和/或导电材料可能引起一个旋转角度传感器受到另一个旋转角度传感器的电磁干涉。然而,在所述区域中,可以设置引起这两个旋转角度传感器的电磁解耦的材料和/或结构。
用于为所述第二旋转角度传感器供电和/或用于评估来自所述磁阻元件或霍尔传感器的信号的至少一个电气构件优选地位于所述圆盘内。这使得所述磁阻元件或霍尔传感器与要评估的构件之间的电缆能够保持较短。因此,可以使可以经由线路耦合的干涉最小化。
用于为所述第一旋转角度传感器和/或所述第二旋转角度传感器供电和/或用于评估来自所述天线和/或所述磁阻元件或霍尔传感器的信号的至少一个电气构件可以位于所述圆环外部。
附图说明
下面基于附图更详细地解释说明本发明。图显示:
图1为根据本发明的传感器布置的立体侧视图,
图2为本发明的传感器布置的定子的鸟瞰图,
图3为根据本发明的转子传感器布置的立体图,以及
图4为定子的区域的表示。
具体实施方式
所示的本发明的传感器布置的定子1具有印刷电路板11,在所述印刷电路板上布置有天线12,所述天线由导体轨道形成。该天线12具有圆形轮廓,所述圆形轮廓设置于定子1的区域C中。
定子1在区域C的中心具有圆盘形区域A,在所述圆盘形区域中设置有磁阻元件13。磁阻元件连接至集成构件15,所述集成构件可以为磁阻元件供应能量并且评估磁阻元件的信号。这些构件经由未示出的线路连接至彼此。
在区域C与中心的区域A之间设置有呈圆环的形式的区域B。该区域具有圆环的形状。该区域B用于干涉抑制,这将在下面解释说明。
区域C被区域D包围,所述区域D可以延伸至印刷电路板11的边缘。在区域D中,设置另外的构件、即构件14,其可以被用来生成被发送至天线的信号。另外,构件14使得可以从天线接收信号并且评估该信号。
根据本发明的传感器布置的转子2具有轴21。该轴可转动地安装,这未被示出。轴承被设计成使得轴21以及转子2的附接至所述轴的所有部件可围绕轴21的纵向轴线旋转。
转子2的附接至轴21的部件可以包含印刷电路板22,所述印刷电路板22承载由导电轨道的结构形成的调制器或承载将对来自PCB天线的信号进行调制的金属部件。印刷电路板22在不存在轨道的区域中具有凹槽221,所述凹槽可以减小印刷电路板的质量。
转子2的附接至轴21的部件还包含附接至轴21的一个端的磁体23。磁体23具有扁平圆柱体的形状,所述扁平圆柱体可以在它的中心中具有用于将它固定于轴上的孔,所述孔与所述纵向轴线同轴地布置。
转子2被布置成使得它可以相对于定子1旋转,以使得区域A、B以及C与转子2的旋转轴线同轴。
天线12和调制器22形成传感器布置的第一旋转角度传感器,并且磁阻元件13和磁体23形成传感器布置的第二旋转角度传感器。布置有传感器的区域在空间上彼此分开。
由构件14中的一个生成并且耦合至天线12的信号生成电磁场,所述电磁场通过调制器的旋转而改变。这种改变影响天线并且根据转子相对于定子的旋转角度而改变信号。信号可以由构件14中的一个接收,以通过天线进行评估。
第二旋转角度传感器可以基于各向异性磁阻效应、巨磁阻效应、隧道磁阻效应或任何其它磁阻效应或霍尔效应。通过磁体23和磁阻元件13的相对运动,磁阻元件13生成对应于旋转角度的信号,可以利用构件15中的一个评估所述对应于旋转角度的信号。因此,第一旋转角度传感器和第二旋转角度传感器提供转子2相对于定子1的旋转角度,该旋转角度可以被进一步评估。
区域B用来防止第一旋转角度传感器与第二旋转角度传感器之间的干涉。该区域B尽可能大,以使得可以安全地避免干扰,但是同时尽可能小,以使得转子和定子占用尽可能小的空间。
定义围绕区域C的区域D,以使得没有其它构件会对第一旋转角度传感器产生干涉。
因为传感器布置的集成方面非常重要,所以这些区域B和D必须被设置得尽可能小,以使得冗余传感器布置占用尽可能小的空间。
附图标记
1 定子
11 印刷电路板
12 天线
13 磁阻元件
14 用于生成传输信号和评估天线的信号的构件
15 用于评估磁阻传感器的信号的构件
2 转子
21 轴
22 调制器
221 凹槽
23 磁体
A 定子的印刷电路板的用于磁阻传感器和构件的区域
B 用于第一角度传感器和第二角度传感器解耦的区域
C 定子的印刷电路板的用于天线的区域
D 由与定子1粘结的任何表面所定义的在区域C外部的区域
Claims (11)
1.一种传感器布置,所述传感器布置包括两个不同类型的旋转角度传感器,所述传感器布置具有转子(2)和定子(1),两个不同类型的旋转角度传感器中的第一旋转角度传感器具有由所述定子(1)构成的天线(12)以及由所述转子(2)构成的调制器(22),并且两个不同类型的旋转角度传感器中的第二旋转角度传感器具有磁体(23)以及由所述定子(1)构成的磁阻元件(13)或者霍尔传感器,
其特征在于,
所述转子(2)包括所述调制器(22)和所述磁体(23)。
2.根据权利要求1所述的传感器布置,其特征在于,所述转子(2)具有轴(21),在所述轴的一个端处布置有所述磁体(23)。
3.根据权利要求1或2所述的传感器布置,其特征在于,在所述第一旋转角度传感器的所述天线(12)与所述调制器(22)之间,并且在所述第二旋转角度传感器的所述磁阻元件或霍尔传感器与所述磁体之间,存在区域(B)以防止所述第一旋转角度传感器与所述第二旋转角度传感器之间的相互干扰。
4.根据权利要求2或3所述的传感器布置,其特征在于,所述调制器(22)和所述轴(21)为相互依赖的。
5.根据权利要求1至4中的一项所述的传感器布置,其特征在于,所述定子(1)具有至少一个电气构件(14,15)、特别地为集成电路,用于向所述第一旋转角度传感器和/或第二旋转角度传感器的元件供电和/或用于评估来自所述天线和所述磁阻元件或霍尔传感器的信号。
6.根据权利要求1至5中的一项所述的传感器布置,其特征在于,所述定子(1)具有印刷电路板(11),在所述印刷电路板上布置有所述天线(12)、所述磁阻元件(13)或霍尔传感器以及所述至少一个电气构件(14,15)。
7.根据权利要求1至6中的一项所述的传感器布置,其特征在于,所述磁阻元件(13)或霍尔传感器在沿旋转轴线的方向的投影中位于与所述旋转轴线同心的圆盘内。
8.根据权利要求1至7中的一项所述的传感器布置,其特征在于,所述调制器在沿所述旋转轴线的方向的投影中位于与所述旋转轴线同心的圆环内。
9.根据权利要求7和8所述的传感器布置,其特征在于,所述圆盘位于所述圆环内并且具有小于或等于所述圆环的内径的外径。
10.根据权利要求7至9中的一项所述的传感器布置,其特征在于,用于向第二旋转角度传感器供电和/或用于评估来自所述磁阻元件(13)或霍尔传感器的信号的至少一个电气构件位于所述圆盘内。
11.根据权利要求7至10中的一项所述的传感器布置,其特征在于,用于向所述第一旋转角度传感器和/或所述第二旋转角度传感器供电和/或用于评估来自所述天线(12)和/或所述磁阻元件(13)或霍尔传感器的信号的至少一个电气构件位于所述圆环外部。
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2018
- 2018-12-13 EP EP18826242.2A patent/EP3894791A1/en active Pending
- 2018-12-13 JP JP2021533498A patent/JP7157255B2/ja active Active
- 2018-12-13 CN CN201880100144.0A patent/CN113167595A/zh active Pending
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DE19520299A1 (de) * | 1995-06-02 | 1996-12-05 | Bosch Gmbh Robert | Einrichtung zur Lageerkennung |
JP2003247863A (ja) * | 2002-02-27 | 2003-09-05 | Yaskawa Electric Corp | 複合形検出器 |
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US11949296B2 (en) | 2024-04-02 |
JP2022512249A (ja) | 2022-02-02 |
WO2020119905A1 (en) | 2020-06-18 |
EP3894791A1 (en) | 2021-10-20 |
JP7157255B2 (ja) | 2022-10-19 |
US20210336514A1 (en) | 2021-10-28 |
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