CN104885254A - 尤其用于胎压传感器的钮扣电池 - Google Patents
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Abstract
本发明涉及一种尤其用于胎压传感器的钮扣电池,具有通过第一端侧形成的第一电极和通过与第一端侧相对的第二端侧形成的第二电极,具有安装在第一端侧上的第一接触点片,其在第一端侧的平面的内部具有基本上平坦的延伸部,或者具有通过第一端侧形成的第一接触点片,具有安装在第二端侧上的第二接触点片,其从第二端侧的平面开始弯折地延伸基本上直至第一端侧的平面,具有在钮扣电池上、至少在第一和第二接触点片的区域中安装的或者在钮扣电池的外圆周上安装的绝缘层。本发明的特征在于,绝缘层具有多个开口,这些开口完全地穿透绝缘层并且这些开口在绝缘层的表面上分布地设置。
Description
技术领域
本发明涉及一种尤其用于胎压传感器的钮扣电池,以及具有这种纽扣电池的胎压传感器。
背景技术
当仅仅能够提供用于电池的较小的容纳空间时,总是使用钮扣电池来进行供电。钮扣电池具有两个扁平的端侧,二者中每个都形成一个电极,即通过第一端侧形成正极以及第二端侧形成负极。
通常,钮扣电池的接触通过接触第一端侧的第一电触点和接触第二端侧的第二电触点实现。通过这种方式,通过简单地将多个钮扣电池彼此堆放在一起,多个钮扣电池可以彼此串联连接。
在胎压传感器中使用钮扣电池时,如其在本发明中所特别涉及到的那样,需要纽扣电池与通常是在电路板上的单一共同平面中的两个电极电连接。因此,在实践中,趋势是在两个端侧的每个上安装接触点片,特别是焊接或者粘接,其中在面对电路板的一侧上的接触点片可以具有基本上平坦的形状,在远离电路板的一侧上的接触点片必须具有弯折的形状,因为其从其远离的端侧延伸,在某种程度上可以说围绕钮扣电池的外边沿延伸直至到电路板上的平面中,第一接触点片也在该平面中。第二接触点片在第一接触点片的平面中的延伸当然会产生风险,即在钮扣电池的外圆周处产生电短路,因为通过第一、在此为下端侧形成的电极通常延伸直至钮扣电池的外圆周上并且从那里有一部分在另外的电极的方向上延伸。为了避免这样的短路,并未考虑在钮扣电池的外圆周上简单地套上不导电的收缩软管并且因此确保在第二接触点片和外周面之间的绝缘。
尽管所述的实施例目前能够无问题地工作,但是在实践中在胎压传感器中使用钮扣电池时,钮扣电池具有特别短的寿命,也就是说,钮扣电池过早并且意外地放电。其起因目前还不明。
发明内容
本发明的目的在于给出一种尤其用于胎压传感器的钮扣电池,在该电池中,其寿命相对于已知的设计方案被延长。
根据本发明的目的通过具有权利要求1的特征的钮扣传感器实现。在从属权利要求中给出了优选的设计方案和根据本发明的胎压传感器。
根据本发明的尤其用于胎压传感器的钮扣电池具有通过第一端侧形成的第一电极和通过与第一端侧相对的第二端侧形成的第二电极。在第一端侧上安装有第一接触点片并且在第二端侧上安装有第二接触点片。在第一端侧上的接触点片具有基本上平坦的延伸部,第一端侧也在该延伸部的平面中延伸。这并不强制性地意味着第一接触点片完全是平坦的。连接平面也可以稍微处于第一端侧的外部,其中为了与钮扣电池进行接触的第一接触点片连接到该连接平面中。
第二接触点片从其安装在其上的第二端侧的平面延伸直至第一接触点片的接触平面中,也就是说基本上延伸直至到第一端侧的平面中。因此,用于电接触钮扣电池的两个接触点片可以在共同的平面中或者在两个彼此靠近的平面中。
对于将第一接触点片安装到钮扣电池的第一端侧的方案来说附加的或者可选的是,该端侧本身形成接触点片。在该种情况中,钮扣电池的接触通过端侧本身实现,例如在电路板的相应的接口上实现。
至少在第一和第二接触点片的区域(周围部段)中并且尤其是在钮扣电池的整个外圆周上设置有在钮扣电池上的绝缘层,从而阻止在外圆周和第二接触点片之间的电短路。
根据本发明,绝缘层具有多个开口,这些开口完全地穿透绝缘层并且这些开口在绝缘层的表面上分布地设置。例如,绝缘层被设计成网,尤其设计成拉紧的网状软管,例如收缩网状软管。
本发明基于这样的认识,在已知的封闭的绝缘层,尤其由于温度波动的原因,在绝缘层和钮扣电池的外圆周之间的缝隙中可能会侵入湿气并由此产生短路,这会导致钮扣电池的不希望的放电。由于绝缘层的封闭的表面,该湿气可能不能挥散。相反,当湿气出现时,通过根据本发明的设计方案能够确保对在绝缘层和钮扣电池之间的空隙的通风,这或者完全地阻止了导电的湿气膜的形成或者至少通过去除湿气能够快速地进行干燥。
第一接触点片和/或第二接触点片也可以穿透所述绝缘层,例如穿过在绝缘层中设置的开口之一,尤其是穿过网眼。当接触点片由此部分地由绝缘层覆盖时,实现了相对于周围环境的附加的绝缘,而不会使接触变得困难。
根据本发明的胎压传感器具有壳体、压力传感器、发射电子元件和/或电源。压力传感器、发射电子元件和/或电源优选地部分或者全部地容纳在壳体的内部。然而,本发明并不由此受到限制。另外的实施例提出一个或者另外的部件在壳体上或者在壳体外部的布置。
电源包括根据本发明的钮扣电池。
尤其是当除了电源还有压力传感器和发射电子元件定位在壳体内部中时并且由壳体部分或者完全地包围时,当壳体中填充有封装化合物,从而除了用于将环境压力传递到压力传感器的开口之外都进行密封时是有利的。封装化合物可以例如被应用到壳体的整个表面上。
通过根据本发明的钮扣电池的设计方案,仅仅第二绝缘体可以相对于钮扣电池的外圆周特别紧密地弯折并由此使得钮扣电池至尤其是壳体内部的电路板上的电接触点的必要的延伸部保持最短,该电路板还容纳压力接收器和发射电子元件。这导致壳体能够在整体上设计得较小并因此需要较少的封装材料。作为经验法则,当壳体例如被设计长出两毫米时,就需要多出五克的封装材料,这在常规的较大数量的作为流水线部件生产的胎压传感器的情况中会明显地节省成本。
钮扣电池可以例如通过两个接触点片焊接在壳体内部的电路板上,压力传感器和发射电子元件也接触至该电路板。
当壳体铰接地连接在轮胎阀或者另外铰接地连接在机动车轮胎的边框上,以用于固定地容纳,由此在不同边框类型时总是确保壳体紧贴在侧面上时是特别有利的。
附图说明
接下来根据实施例和附图对本发明进行示意性的说明。
图中示出:
图1是根据本发明的钮扣电池的截面图的示意图;
图2是图1中的钮扣电池的俯视图的示意图;
图3是具有根据本发明的钮扣电池的胎压传感器。
具体实施方式
在图1中示出了钮扣电池的内部构造。示出了第一导电的基板,其形成了钮扣电池的第一端侧1以及第二电极2。与第一基板相对地设置有第二导电的基板,其形成第二端侧3和第二电极4。
两个导电的基板以及电极2、4通过绝缘材料5彼此绝缘,该绝缘材料装入在钮扣电池的外圆周的区域中。
在第一端侧1上,第一接触点片6与第一电极2电连接。第一接触点片6基本上延伸到第一端侧1的平面的内部。
在第二端侧3上设置有第二接触点片7,其与第二电极4导电地连接。该第二接触点片7基本上在第二端侧3的内部延伸直至超过钮扣电池的外圆周,然后弯折,从而使其进入到基本上第一端侧1的平面中并从那里进一步延伸。这样的原因是,即钮扣电池设置在将接触的电路板(未示出)上,其中用于钮扣电池的两个电极2、4的电路板的两个接触点基本上处于共同的平面内。
如图中可见,第一电极2从第一端侧1开始在第二端侧4的方向上在钮扣电池的外部周围延伸。这意味着,在钮扣电池的外部周围在确定的高度上,例如直至高度的一半或者超出该高度能够实现与第一电极2的接触。现在为了防止第二接触点片7在钮扣电池的外部周围接触第一电极1而产生的电短路,在钮扣电池的外部周围施加绝缘层8。该绝缘层8延伸超过钮扣电池的整个高度并且从外部直至超过端侧1、3的外部边缘和两个电极2、4。
根据本发明,绝缘层具有多个开口,例如在示出的实施例中设计成拉伸网。
在图2中能够更清晰地看到绝缘层8的网状结构并且可以看到,其从钮扣电池的外部周围超过绝缘材料5延伸直至第二电极4。
此外,在图2中可见,第一接触点片6和第二接触点片7在钮扣电池的周向方向上彼此错开地布置。此外,两个接触点片6、7穿透绝缘层8。
在图3中示意性地示出了具有壳体10的胎压传感器,其铰接地连接在轮胎阀16上。
在壳体10的内部设置有电路板15,其承载钮扣电池(电源13)、发射电子元件12和压力传感器11并彼此电接触。钮扣电池通过两个电接触点片6、7连接至电路板15。在此示出的实施例中,第一接触点片6通过钮扣电池本身的下端侧形成。
壳体10利用封装化合物14封装,从而使其除了用于压力传感器11的空气导通连接之外,相对于外界密封,在该连接部中可以设置薄膜。
尽管其没有详细地示出,但是钮扣电池配备有根据本发明的绝缘层。
Claims (8)
1.一种尤其用于胎压传感器的钮扣电池,具有通过第一端侧(1)形成的第一电极(2)和通过与所述第一端侧(1)相对的第二端侧(3)形成的第二电极(4);
1.1具有安装在所述第一端侧(1)上的第一接触点片(6),所述第一接触点片在所述第一端侧(1)的平面的内部具有基本上平坦的延伸部,或者具有通过所述第一端侧(1)形成的第一接触点片(6);
1.2具有安装在所述第二端侧(3)上的第二接触点片(7),所述第二接触点片从所述第二端侧(3)的平面开始弯折地延伸基本上直至所述第一端侧(1)的平面;
1.3具有在所述钮扣电池上、至少在所述第一接触点片和所述第二接触点片(6,7)的区域中安装的或者在所述钮扣电池的外圆周上安装的绝缘层(8);
其特征在于,
1.4所述绝缘层(8)具有多个开口,这些所述开口完全地穿透所述绝缘层(8)并且这些所述开口在所述绝缘层(8)的表面上分布地设置。
2.根据权利要求1所述的钮扣电池,其特征在于,所述绝缘层(8)设计成网。
3.根据权利要求1或2中任一项所述的钮扣电池,其特征在于,所述绝缘层(8)设计成在所述钮扣电池上拉紧的网状软管,尤其是收缩网状软管。
4.根据权利要求1至3中任一项所述的钮扣电池,其特征在于,所述第一接触点片和/或所述第二接触点片(6,7)穿透所述绝缘层(8)并且部分地由所述绝缘层(8)覆盖。
5.一种胎压传感器,
5.1具有壳体(10);
5.2具有在所述壳体(10)的外部、所述壳体上的或者所述壳体内部的压力传感器(11);
5.3具有在所述壳体(10)上的或者内部的发射电子元件(12);
5.4具有电源(13);
其特征在于,
5.5所述电源(13)包括根据权利要求1至4中任一项所述钮扣电池。
6.根据权利要求5所述的胎压传感器,其特征在于,所述压力传感器(11),所述发射电子元件(12)和所述钮扣电池定位在所述壳体(10)的内部并且所述壳体(10)至少部分地尤其在其整个基面上封装有封装材料(14)。
7.根据权利要求5或6所述的胎压传感器,其特征在于,在所述壳体(10)中设置有电路板(15),所述钮扣电池利用两个所述接触点片(6,7)焊接、夹紧或者其他手段紧固在所述电路板上,以进行电接触。
8.根据权利要求5至7中任一项所述的胎压传感器,其特征在于,所述壳体(10)铰接地连接至轮胎阀(16)上。
Applications Claiming Priority (3)
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DE102013001371.2A DE102013001371B4 (de) | 2013-01-28 | 2013-01-28 | Knopfzelle, insbesondere für einen Reifendrucksensor, sowie Reifendrucksensor |
DE102013001371.2 | 2013-01-28 | ||
PCT/EP2014/051662 WO2014114815A1 (de) | 2013-01-28 | 2014-01-28 | Knopfzelle, insbesondere für einen reifendrucksensor |
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CN104885254A true CN104885254A (zh) | 2015-09-02 |
CN104885254B CN104885254B (zh) | 2017-07-14 |
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US (1) | US20150364728A1 (zh) |
EP (1) | EP2909876B1 (zh) |
JP (1) | JP2016510484A (zh) |
KR (1) | KR20150112959A (zh) |
CN (1) | CN104885254B (zh) |
DE (1) | DE102013001371B4 (zh) |
WO (1) | WO2014114815A1 (zh) |
Cited By (2)
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CN109037526A (zh) * | 2018-07-25 | 2018-12-18 | 长兴鑫泓新能源科技有限公司 | 一种高适配纽扣锂电池 |
CN111326702A (zh) * | 2018-12-13 | 2020-06-23 | 瓦尔达微电池有限责任公司 | 具有接点片的柱形电池 |
Families Citing this family (1)
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EP3972025B1 (de) | 2020-09-16 | 2023-05-31 | VARTA Microbattery GmbH | Elektrochemische zelle mit kontaktfahne |
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CN104885254B (zh) | 2017-07-14 |
DE102013001371A1 (de) | 2014-07-31 |
DE102013001371B4 (de) | 2015-10-22 |
US20150364728A1 (en) | 2015-12-17 |
JP2016510484A (ja) | 2016-04-07 |
EP2909876B1 (de) | 2016-10-19 |
EP2909876A1 (de) | 2015-08-26 |
WO2014114815A1 (de) | 2014-07-31 |
KR20150112959A (ko) | 2015-10-07 |
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