CN106300216A - 绝缘终端组件 - Google Patents

绝缘终端组件 Download PDF

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CN106300216A
CN106300216A CN201510324087.2A CN201510324087A CN106300216A CN 106300216 A CN106300216 A CN 106300216A CN 201510324087 A CN201510324087 A CN 201510324087A CN 106300216 A CN106300216 A CN 106300216A
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insulation
connecting tube
terminal assembly
insulated sleeve
insulating
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CN106300216B (zh
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谈跃中
杨立章
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Tyco Electronics Shanghai Co Ltd
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Tyco Electronics Shanghai Co Ltd
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Priority to JP2017559710A priority Critical patent/JP6513828B2/ja
Priority to PCT/IB2016/052942 priority patent/WO2016185419A1/en
Priority to KR1020177036454A priority patent/KR102060504B1/ko
Priority to EP16728106.2A priority patent/EP3298613B1/en
Publication of CN106300216A publication Critical patent/CN106300216A/zh
Priority to US15/816,633 priority patent/US10410770B2/en
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Abstract

本发明公开一种绝缘终端组件，包括：绝缘套管、绝缘伞群和出口端盖。在所述绝缘套管的内部空间中填充有绝缘气体或绝缘液体，并且从电器设备引出的载流导体从所述绝缘套管的入口引入所述绝缘套管中并与所述出口端盖电连接。所述绝缘终端组件还包括一体式的绝缘基座，所述绝缘基座包括一体形成的绝缘法兰和绝缘连接管；所述绝缘法兰形成在所述绝缘连接管的基部上，并适于安装到所述电器设备的壳体上；并且所述绝缘连接管与所述绝缘套管的入口端相连。在本发明中，用一体式的绝缘基座代替了传统的金属法兰，因此，降低了绝缘终端组件的制造成本。此外，绝缘基座与绝缘套筒之间结合强度好，两者之间不容易出现缝隙，提高了绝缘终端组件的密封性。

Description

绝缘终端组件
技术领域
本发明涉及一种绝缘终端组件，尤其涉及一种用于从断路器或变压器引出的载流导体的绝缘终端组件。
背景技术
在现有技术中，需要对从断路器或变压器引出的载流导体进行绝缘处理。通常，从断路器或变压器引出的载流导体被容纳在一个绝缘终端组件中。在电力工业中，这个绝缘终端组件通常简称为GIS(GasInsulated Switchgear)。
在现有技术中，绝缘终端组件通常包括绝缘套管、绝缘伞群和金属法兰。在绝缘套管中填充有绝缘的SF6气体，从电器设备引出的载流导体被容纳在绝缘套管。绝缘伞群形成在绝缘套管的外壁上。金属法兰附接到绝缘套管的基部。该金属法兰可以安装在电器设备的壳体上，从而将整个绝缘终端组件安装在电器设备的壳体上。
在现有技术中，金属法兰的成本较高，增加了绝缘终端组件的制造成本。此外，由于金属法兰与绝缘套管的材料不同，两者的热膨胀系数不同，导致两者之间容易出现缝隙，填充在绝缘套管中的SF6气体容易从金属法兰与绝缘套管之间的缝隙泄漏出来。
此外，在现有技术中，由于需要将直径较大的金属法兰直接附接到绝缘套管的基部端上，因此，绝缘套管的外径必须与金属法兰的直径相匹配，这导致绝缘套管的外径较大，使得用于制造绝缘套管的材料量增加，这也导致成本上升。
发明内容
本发明的目的旨在解决现有技术中存在的上述问题和缺陷的至少一个方面。
本发明的一个目的在于提供一种绝缘终端组件，其能够降低成本。
本发明的另一个目的在于提供一种绝缘终端组件，其能够提高密封性能，防止内部的绝缘气体或绝缘液体外泄。
根据本发明的一个方面，提供一种绝缘终端组件，包括：绝缘套管，具有入口端和与所述入口端相对的出口端；绝缘伞群，形成在所述绝缘套管的外壁上；和出口端盖，密封地安装在所述绝缘套管的出口上。在所述绝缘套管的内部空间中填充有绝缘气体或绝缘液体，并且从电器设备引出的载流导体从所述绝缘套管的入口引入所述绝缘套管中并与所述出口端盖电连接。所述绝缘终端组件还包括一体式的绝缘基座，所述绝缘基座包括一体形成的绝缘法兰和绝缘连接管；所述绝缘法兰形成在所述绝缘连接管的基部上，并适于安装到所述电器设备的壳体上；并且所述绝缘连接管与所述绝缘套管的入口端相连。
根据本发明的一个实例性的实施例，所述绝缘基座还包括与所述绝缘法兰和所述绝缘连接管一体形成的多个绝缘加强筋；并且每个所述绝缘加强筋分别连接到所述绝缘法兰的外壁和所述绝缘连接管的外壁上，以便提高所述绝缘法兰和所述绝缘连接管之间的接合强度。
根据本发明的另一个实例性的实施例，所述多个绝缘加强筋围绕所述绝缘连接管的基部均匀间隔分布。
根据本发明的另一个实例性的实施例，所述绝缘连接管包括：第一管部，位于所述绝缘连接管的靠近所述绝缘法兰的一端；第二管部，位于所述绝缘连接管的远离所述绝缘法兰的另一端；和第三管部，位于所述第一管部和所述第二管部之间，其中，所述第一管部具有第一外径，所述第二管部具有小于所述第一外径的第二外径，并且所述第三管部具有从所述第一外径渐变到所述第二外径的渐变外径。
根据本发明的另一个实例性的实施例，所述绝缘套管的内径稍大于所述绝缘连接管的第二管部的外径且小于所述第一管部的外径；并且所述绝缘套管的入口端密封地套接在所述绝缘连接管的第二管部外部。
根据本发明的另一个实例性的实施例，所述绝缘套管的外径稍小于所述绝缘连接管的第二管部的内径；并且所述绝缘连接管的第二管部密封地套接在所述绝缘套管的入口端外部。
根据本发明的另一个实例性的实施例，所述绝缘终端组件还包括外部接线排，所述外部接线排以可拆卸的方式安装在所述出口端盖的外壁上。
根据本发明的另一个实例性的实施例，所述绝缘终端组件还包括高压屏蔽环，所述高压屏蔽环以可拆卸的方式安装在所述出口端盖的外壁上，并且环绕所述外部接线排。
根据本发明的另一个实例性的实施例，所述绝缘终端组件还包括筒状基部屏蔽，所述筒状基部屏蔽容纳在所述绝缘连接管中，并环绕所述载流导体。
根据本发明的另一个实例性的实施例，在所述绝缘法兰的底面上形成有凹槽，所述筒状基部屏蔽的边缘部装配在所述绝缘法兰的底面上的凹槽中。
根据本发明的另一个实例性的实施例，在所述绝缘套管的内部空间中填充有SF6气体。
根据本发明的另一个实例性的实施例，所述绝缘套管为通过缠绕浸渍了环氧树脂的玻璃纤维制成的缠绕管。
根据本发明的另一个实例性的实施例，所述绝缘基座为通过压制浸渍了环氧树脂的玻璃纤维制成的压制件。
根据本发明的另一个实例性的实施例，所述绝缘基座和所述绝缘套管由相同的材料制成。
在本发明的前述各个实施例中，用一体式的绝缘基座代替了传统的金属法兰，因此，降低了绝缘终端组件的制造成本。
此外，在本发明的一些实施例中，绝缘基座与绝缘套筒采用相同的材料制成，因此，绝缘基座与绝缘套筒之间结合强度好，两者之间不容易出现缝隙，提高绝缘终端组件的密封性。
通过下文中参照附图对本发明所作的描述，本发明的其它目的和优点将显而易见，并可帮助对本发明有全面的理解。
附图说明
图1显示根据本发明的一个实例性的实施例的绝缘终端组件的纵向剖视图；
图2显示图1中的绝缘终端组件的绝缘基座的立体示意图；和
图3显示根据本发明的另一个实例性的实施例的绝缘终端组件的纵向剖视图。
具体实施方式
下面通过实施例，并结合附图，对本发明的技术方案作进一步具体的说明。在说明书中，相同或相似的附图标号指示相同或相似的部件。下述参照附图对本发明实施方式的说明旨在对本发明的总体发明构思进行解释，而不应当理解为对本发明的一种限制。
根据本发明的一个总体技术构思，提供一种绝缘终端组件，包括：绝缘套管，具有入口端和与所述入口端相对的出口端；绝缘伞群，形成在所述绝缘套管的外壁上；和出口端盖，密封地安装在所述绝缘套管的出口上。在所述绝缘套管的内部空间中填充有绝缘气体或绝缘液体，并且从电器设备引出的载流导体从所述绝缘套管的入口引入所述绝缘套管中并与所述出口端盖电连接。所述绝缘终端组件还包括一体式的绝缘基座，所述绝缘基座包括一体形成的绝缘法兰和绝缘连接管；所述绝缘法兰形成在所述绝缘连接管的基部上，并适于安装到所述电器设备的壳体上；并且所述绝缘连接管与所述绝缘套管的入口端相连。
图1显示根据本发明的一个实例性的实施例的绝缘终端组件的纵向剖视图；和图2显示图1中的绝缘终端组件的绝缘基座140的立体示意图。
在本发明的一个实例性的实施例中，公开了一种绝缘终端组件。如图1和图2所示，该绝缘终端组件主要包括绝缘套管120、绝缘伞群130、出口端盖160和绝缘基座140。
如图1所示，在图示的实施例中，绝缘套管120具有入口端120a(图1中的下端)和与入口端120a相对的出口端120b(图1中的上端)。绝缘伞群130形成在绝缘套管120的外壁上。金属制的出口端盖160密封地安装在绝缘套管120的出口上。
请继续参见图1，在本发明的一个实施例中，在绝缘套管120的内部空间101中填充有绝缘气体或绝缘液体，例如，SF6气体。从电器设备(未图示)，例如，变压器或断路器，引出的载流导体110从绝缘套管120的入口引入绝缘套管120中并与安装在绝缘套管120的出口上的出口端盖160电连接。
在图示的实施例中，如图1和图2所示，绝缘基座140是通过压制工艺一次性地形成的一体式部件。在图示的实施例中，绝缘基座140包括一体形成的绝缘法兰141和绝缘连接管142。绝缘法兰141形成在绝缘连接管142的基部上，并适于安装到电器设备的壳体上。绝缘连接管142与绝缘套管120的入口端120a相连。
如图2清楚地显示，在绝缘法兰141上形成有多个安装孔141a，绝缘法兰141可以通过穿过安装孔141a的多个螺栓(未图示)连接到电器设备的壳体上。
请继续参见图2，在图示的实施例中，绝缘基座140还包括与绝缘法兰141和绝缘连接管142一体形成的多个绝缘加强筋143。每个绝缘加强筋143分别连接到绝缘法兰141的外壁和绝缘连接管142的外壁上，以便提高绝缘法兰141和绝缘连接管142之间的接合强度。
在图示的实施例中，如图2所示，多个绝缘加强筋143围绕绝缘连接管142的基部均匀间隔分布。
如图1和图2所示，在本发明的一个实例性的实施例中，绝缘连接管142包括第一管部142a、第二管部142c和第三管部142b。第一管部142a位于绝缘连接管142的靠近绝缘法兰141的一端；第二管部142c位于绝缘连接管142的远离绝缘法兰141的另一端；第三管部142b位于第一管部142a和第二管部142c之间。如图1和图2所示，第一管部142a具有第一外径，第二管部142c具有小于第一外径的第二外径，并且第三管部142b具有从第一外径渐变到第二外径的渐变外径。
这样，绝缘套管120就不要与直径较大的绝缘法兰141相匹配，而仅需与直径较小的第二管部142c相匹配，因此，减小了绝缘套管120的直径，减少了制造绝缘套管120的材料量，降低了制造成本。
此外，在本发明的前述实施例中，绝缘连接管142的下面部分管内径较上部管内径大，而绝缘连接管142的下面部分正好是电场相对集中的地方，从而更有效地提高了绝缘使用效率，而无需将整个绝缘连接管142以及绝缘套管120制成一样大，节约了材料。
在图示的实施例中，如图1和图2所示，绝缘套管120的内径稍大于绝缘连接管142的第二管部142c的外径且小于第一管部142a的外径。绝缘套管120的入口端120a密封地套接在绝缘连接管142的第二管部142c外部。
但是，请注意，本发明不局限于图示的实施例，在本发明的另一个实施例中，例如，如图3所示，绝缘套管120的外径可以稍小于绝缘连接管142的第二管部142’的内径。这样，绝缘连接管142的第二管部142’可以密封地套接在绝缘套管120的入口端120a外部。
在本发明的一个实例性的实施例中，绝缘基座140和绝缘套管120可以由相同的绝缘材料制成，这样两者之间的热膨胀系数就会相同，因此，两者之间就不容易出现缝隙。
在本发明的一个实例性的实施例中，绝缘套管120为通过缠绕浸渍了环氧树脂的玻璃纤维制成的缠绕管。绝缘基座140为通过压制浸渍了环氧树脂的玻璃纤维制成的压制件。在图示的实施例中，绝缘套管120的出口端120b密封地缠绕在绝缘连接管142的第二管部142c上，从而形成了一个整体的密封结构，提高了绝缘终端组件气密性。
如图1和图2所示，在图示的实施例中，绝缘终端组件还包括外部接线排170，该外部接线排170以可拆卸的方式安装在出口端盖160的外壁上。例如，以螺纹连接的方式安装在出口端盖160上。
在本发明的一个实例性的实施例中，如图1和图2所示，绝缘终端组件还包括高压屏蔽环180，该高压屏蔽环180以可拆卸的方式安装在出口端盖160的外壁上，并且环绕外部接线排170。高压屏蔽环180用于使外部接线排170产生的电场均匀化，防止出现集中放电。
在本发明的一个实例性的实施例中，如图1和图2所示，绝缘终端组件还包括筒状基部屏蔽150，该筒状基部屏蔽150容纳在绝缘连接管142中，并环绕载流导体110。筒状基部屏蔽150用于使载流导体110在绝缘基座140处产生的电场均匀化，防止出现集中放电。
在本发明的一个实施例中，如图1和图2所示，在所述绝缘法兰141的底面上形成有凹槽，所述筒状基部屏蔽150的边缘部装配在所述绝缘法兰141的底面上的凹槽中。
请注意，本发明的绝缘终端组件不仅可以用于变压器或断路器的引出导线的绝缘，还可以用于高压电缆的绝缘终端。
在本发明中，由于用于将绝缘终端组件安装到电器设备的壳体上的绝缘基座是用价格低廉的绝缘材料制成的，而不是价格昂贵的金属，因此，降低了制造成本。此外，绝缘基座与绝缘套筒之间容易相互结合，并且两者之间的热膨胀系数相近或相同，因此，两者之间不容易出现缝隙，提高了密封性能。
虽然结合附图对本发明进行了说明，但是附图中公开的实施例旨在对本发明优选实施方式进行示例性说明，而不能理解为对本发明的一种限制。
虽然本总体发明构思的一些实施例已被显示和说明，本领域普通技术人员将理解，在不背离本总体发明构思的原则和精神的情况下，可对这些实施例做出改变，并且各种实施例中所描述的结构在不发生结构或者原理方面的冲突的情况下可以进行自由组合，本发明的范围以权利要求和它们的等同物限定。
应注意，措词“包括”不排除其它元件或步骤，措词“一”或“一个”不排除多个。另外，权利要求的任何元件标号不应理解为限制本发明的范围。

Claims (14)

1.一种绝缘终端组件，包括：
绝缘套管(120)，具有入口端(120a)和与所述入口端(120a)相对的出口端(120b)；
绝缘伞群(130)，形成在所述绝缘套管(120)的外壁上；和
出口端盖(160)，密封地安装在所述绝缘套管(120)的出口上，
其中，在所述绝缘套管(120)的内部空间(101)中填充有绝缘气体或绝缘液体，并且从电器设备引出的载流导体(110)从所述绝缘套管(120)的入口引入所述绝缘套管(120)中并与所述出口端盖(160)电连接，
其特征在于：
所述绝缘终端组件还包括一体式的绝缘基座(140)，所述绝缘基座(140)包括一体形成的绝缘法兰(141)和绝缘连接管(142)；
所述绝缘法兰(141)形成在所述绝缘连接管(142)的基部上，并适于安装到所述电器设备的壳体上；并且
所述绝缘连接管(142)与所述绝缘套管(120)的入口端(120a)相连。
2.根据权利要求1所述的绝缘终端组件，其特征在于：
所述绝缘基座(140)还包括与所述绝缘法兰(141)和所述绝缘连接管(142)一体形成的多个绝缘加强筋(143)；并且
每个所述绝缘加强筋(143)分别连接到所述绝缘法兰(141)的外壁和所述绝缘连接管(142)的外壁上，以便提高所述绝缘法兰(141)和所述绝缘连接管(142)之间的接合强度。
3.根据权利要求2所述的绝缘终端组件，其特征在于：
所述多个绝缘加强筋(143)围绕所述绝缘连接管(142)的基部均匀间隔分布。
4.根据权利要求1-3中任一项所述的绝缘终端组件，其特征在于，所述绝缘连接管(142)包括：
第一管部(142a)，位于所述绝缘连接管(142)的靠近所述绝缘法兰(141)的一端；
第二管部(142c)，位于所述绝缘连接管(142)的远离所述绝缘法兰(141)的另一端；和
第三管部(142b)，位于所述第一管部(142a)和所述第二管部(142c)之间，
其中，所述第一管部(142a)具有第一外径，所述第二管部(142c)具有小于所述第一外径的第二外径，并且所述第三管部(142b)具有从所述第一外径渐变到所述第二外径的渐变外径。
5.根据权利要求4所述的绝缘终端组件，其特征在于：
所述绝缘套管(120)的内径稍大于所述绝缘连接管(142)的第二管部(142c)的外径且小于所述第一管部(142a)的外径；并且
所述绝缘套管(120)的入口端(120a)密封地套接在所述绝缘连接管(142)的第二管部(142c)外部。
6.根据权利要求4所述的绝缘终端组件，其特征在于：
所述绝缘套管(120)的外径稍小于所述绝缘连接管(142)的第二管部(142c’)的内径；并且
所述绝缘连接管(142)的第二管部(142c’)密封地套接在所述绝缘套管(120)的入口端(120a)外部。
7.根据权利要求5所述的绝缘终端组件，其特征在于：
所述绝缘终端组件还包括外部接线排(170)，所述外部接线排(170)以可拆卸的方式安装在所述出口端盖(160)的外壁上。
8.根据权利要求7所述的绝缘终端组件，其特征在于：
所述绝缘终端组件还包括高压屏蔽环(180)，所述高压屏蔽环(180)以可拆卸的方式安装在所述出口端盖(160)的外壁上，并且环绕所述外部接线排(170)。
9.根据权利要求8所述的绝缘终端组件，其特征在于：
所述绝缘终端组件还包括筒状基部屏蔽(150)，所述筒状基部屏蔽(150)容纳在所述绝缘连接管(142)中，并环绕所述载流导体(110)。
10.根据权利要求9所述的绝缘终端组件，其特征在于：
在所述绝缘法兰(141)的底面上形成有凹槽，所述筒状基部屏蔽(150)的边缘部装配在所述绝缘法兰(141)的底面上的凹槽中。
11.根据权利要求1或2所述的绝缘终端组件，其特征在于：在所述绝缘套管(120)的内部空间(101)中填充有SF6气体。
12.根据权利要求1或2所述的绝缘终端组件，其特征在于：所述绝缘套管(120)为通过缠绕浸渍了环氧树脂的玻璃纤维制成的缠绕管。
13.根据权利要求1或2所述的绝缘终端组件，其特征在于：所述绝缘基座(140)为通过压制浸渍了环氧树脂的玻璃纤维制成的压制件。
14.根据权利要求1或2所述的绝缘终端组件，其特征在于：所述绝缘基座(140)和所述绝缘套管(120)由相同的材料制成。
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