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1. 发明申请

WO2021174545A1 SWITCH, CONTACT PROTECTION ASSEMBLY AND MANUFACTURING METHOD THEREOF 审中-公开
公开(公告)号：WO2021174545A1
公开(公告)日：2021-09-10
申请号：PCT/CN2020/078263
申请日：2020-03-06
申请人： ABB POWER GRIDS SWITZERLAND AG , ZHANG, Jian , LV, Zhangang , ZHANG, Weidong
发明人： ZHANG, Jian , LV, Zhangang , ZHANG, Weidong
IPC分类号： H01H31/02 , H01H31/28 , H01H1/64
摘要： Provided are a switch (200), a contact protection assembly (100) for a switch (200) and a manufacturing method thereof. The contact protection assembly (100) comprises a protection cover assembly (101) rotatably coupled to a moveable blade (201) of the switch (200), the moveable blade (201) being rotatable about a first shaft (203) of the switch (200) to change an engagement status of contact fingers (2011) of the moveable blade (201) with a fixed contact (202); a second shaft (103) arranged at a distance from the first shaft (203); and an actuation rod (102) coupled between the protection cover assembly (101) and the second shaft (103) and configured to be rotatable about the second shaft (103) with a rotation of the moveable blade (201), wherein the second shaft (103) is arranged parallel to the first shaft (203) to enable the actuation rod (102) to push or pull the protection cover assembly (101) to rotate between a covering position and an exposing position, wherein the protection cover assembly (101) covers the contact fingers (2011) at the covering position and exposes the contact fingers (2011) at the exposing position. With the contact protection assembly (100), foreign objects like ice covering the contact fingers (2011) can be easily removed with the rotation of the protection cover assembly (101). This arrangement makes the switch (200) such as an earthing switch meet requirements of relevant standards, which require that the engagement of contact fingers (2011) with the fixed contact (202) cannot be affected in a case where the contact fingers (2011) are covered by a 20mm ice layer. In this way, the stability of the switch (200) is improved.

2. 发明申请

WO2021159334A1 BALANCE SPRING ASSEMBLY FOR DISCONNECTOR 审中-公开
公开(公告)号：WO2021159334A1
公开(公告)日：2021-08-19
申请号：PCT/CN2020/074930
申请日：2020-02-12
申请人： ABB POWER GRIDS SWITZERLAND AG , YAN, Jiaquan , LI, Shengqiang , LV, Zhangang , ZHANG, Weidong
发明人： YAN, Jiaquan , LI, Shengqiang , LV, Zhangang , ZHANG, Weidong
IPC分类号： H01H71/10 , H01H3/30
摘要： A balance spring assembly for a disconnector(200). The balance spring assembly comprises a push rod (101)partially and coaxially arranged in a blade (201)of the disconnector(200) which is rotatable about a first shaft(103) to change an operation status of the disconnector(200), a first end of the push rod(101) fixed to a second shaft(202) so that the push rod (101)is rotatable about the second shaft(202); and a spring(102) arranged in the blade (201)and around the push rod(101), the spring(102) held between a second end of the push rod(101)and an end of the blade (201)adjacent to the first shaft(103), wherein the second shaft(202) is arranged parallel to the first shaft (103)to enable the push rod(101)to axially move in the blade(201) with a rotation of the blade(201) to thereby compress or decompress the spring(102). By arranging the balance spring assembly at least in part in the blade(201) of the disconnector(200), only one set of the spring(102) is needed. Furthermore, extra components such as the protective tube, the auxiliary spring and some connection elements are no longer needed. In this way, the manufacturing and assembling costs are significantly reduced. Furthermore, with this arrangement, the spring(102) can fully work during the whole process when the blade(201) is rotated from the open position to the close position.

3. 发明申请

WO2018023723A1 DISCONNECTOR AND MANUFACTURING METHOD 审中-公开
标题翻译：断路器和制造方法
公开(公告)号：WO2018023723A1
公开(公告)日：2018-02-08
申请号：PCT/CN2016/093575
申请日：2016-08-05
申请人： ABB SCHWEIZ AG , LIU, Xuan , CHEN, Rui , YAN, Jiaquan , LV, Zhangang
发明人： LIU, Xuan , CHEN, Rui , YAN, Jiaquan , LV, Zhangang
IPC分类号： H01H31/36
摘要： A disconnector(100) and a method for manufacturing the disconnector (100) are disclosed. The disconnector (100) includes conductive arms (110) pivotally coupled with each other, and finger contacts (111). The finger contacts (111) have two opposite ends (115, 116) and an elastic portion (113) between the two opposite ends (115, 116), each of the finger contacts (111) being fixed to the respective conductive arm (110) by fasteners (112) at the two opposite ends (115, 116) such that the elastic portion (113) presses against the conductive arm (110). In response to the conductive arms (110) being pivoted toward each other and clamping an electrical contact (200) hanged at a bus-bar above the disconnector (100), the conductive arms (110) are electrically coupled with the electrical contact (200) via the respective finger contacts (111). The disconnector (100) according to the present disclosure provides outstanding contact performances while the material costs as well as manufacturing and assembly costs are relatively low.
摘要翻译：公开了一种隔离开关（100）和用于制造隔离开关（100）的方法。断路器（100）包括彼此枢转地联接的导电臂（110）以及手指触点（111）。手指触点（111）具有两个相对的端部（115,116）和位于两个相对端部（115,116）之间的弹性部分（113），每个手指触点（111）固定到相应的导电臂（110 ）通过在两个相对端（115,116）处的紧固件（112）使得弹性部分（113）压靠导电臂（110）。响应于导电臂（110）朝向彼此枢转并夹紧悬挂在隔离开关（100）上方的母线处的电触头（200），导电臂（110）与电触头（200）电耦合）通过相应的手指触点（111）。根据本公开的隔离开关（100）提供了出色的接触性能，同时材料成本以及制造和组装成本相对较低。

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