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公开(公告)号：US11972914B2
公开(公告)日：2024-04-30
申请号：US17753728
申请日：2020-02-07
Applicant: ABB Schweiz AG
Inventor： Congming Yan , Liqun Huang , Xin Liu , Andre Bieri
CPC classification number: H01H33/022 , H01H3/40 , H01H9/0072 , H01H9/02 , H01H31/28 , H02B3/00
Abstract: Embodiments of a disconnector and a switchgear, wherein the disconnector comprises a contact assembly operable to change a status of a circuit, the disconnector arranged in the circuit; shafts adapted to be driven to rotate to operate the contact assembly; and a transmission unit arranged between the shafts and comprising: a plurality of gears coupled to the shafts to enable the shafts to rotate with a mutual engagement of the plurality of gears; and a holding assembly adapted to hold radial positions of the plurality of gears to ensure the mutual engagement of the plurality of gears. By arranging the holding assembly to hold the radial positions of the gears to ensure the mutual engagement of the plurality of gears, only one input shaft and one transmission unit are enough to transmit large torques sufficient to operate the contact assembly.
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公开(公告)号：US11488790B2
公开(公告)日：2022-11-01
申请号：US17172157
申请日：2021-02-10
Applicant: ABB Schweiz AG
Inventor： Congming Yan , Xingjie Chen , Liqun Huang , Huihuang Yang , Ziying Xiao
IPC: H01H9/26 , H01H71/02 , H01H71/10 , H02B11/133 , H02H7/22
Abstract: Embodiments of the present disclosure relate to a switch device, comprising: a first three-position switch; a second three-position switch disposed below the first three-position switch; a circuit breaker disposed between the first three-position switch and the second three-position switch. A first interlock unit is disposed above the circuit breaker and connected to the circuit breaker and the first three-position switch, and configured to block a manual operation of the first three-position switch in a closed state of the circuit breaker, and configured to block a manual closing operation of the circuit breaker while the first three-position switch is manually operated in an open state of the circuit breaker. A second interlock unit is disposed below the circuit breaker and connected to the circuit breaker and the second three-position switch, and is configured to block a manual operation of the second three-position switch in the closed state of the circuit breaker, and configured to block a manual closing operation of the circuit breaker while the second three-position switch is manually operated in the open state of the circuit breaker.
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公开(公告)号：US11776775B2
公开(公告)日：2023-10-03
申请号：US17154082
申请日：2021-01-21
Applicant: ABB Schweiz AG
Inventor： Changzhou Yang , Liming Xu , Liqun Huang
CPC classification number: H01H31/003 , H01H1/42 , H02B11/02 , H02B13/02 , H02H7/22
Abstract: Embodiments of the present disclosure provide a switch assembly for a detection unit of a switchgear or controlgear. The switch assembly includes a shaft rotatably arranged between opposite side walls of a compartment for accommodating an electrical component, the electrical component coupled to at least one connecting busbar of the switchgear; at least one conductive unit, each conductive unit being rotatable about the shaft between an open position and a close position; and at least one coupling mechanism arranged in the compartment and configured to electrically couple the conductive unit to the detection unit, wherein each coupling mechanism is electrically coupled to the respective connecting busbar when the conductive unit is in the close position, and is electrically decoupled from the respective connecting busbar when the conductive unit is in the open position and is grounded, and wherein each coupling mechanism includes a connecting unit for receiving a terminal of the detection unit positioned outside the compartment. In this way, maintenance or replacement of the detection unit will not affect the airtightness of the compartment. Furthermore, the connecting unit can also be used to receive the terminal of other kind of detection unit, such as terminals of test assemblies.
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公开(公告)号：US20210142968A1
公开(公告)日：2021-05-13
申请号：US17154082
申请日：2021-01-21
Applicant: ABB Schweiz AG
Inventor： Changzhou Yang , Liming Xu , Liqun Huang
Abstract: Embodiments of the present disclosure provide a switch assembly for a detection unit of a switchgear or controlgear. The switch assembly comprises a shaft rotatably arranged between opposite side walls of a compartment for accommodating an electrical component, the electrical component coupled to at least one connecting busbar of the switchgear; at least one conductive unit, each conductive unit being rotatable about the shaft between an open position and a close position; and at least one coupling mechanism arranged in the compartment and configured to electrically couple the conductive unit to the detection unit, wherein each coupling mechanism is electrically coupled to the respective connecting busbar when the conductive unit is in the close position, and is electrically decoupled from the respective connecting busbar when the conductive unit is in the open position and is grounded, and wherein each coupling mechanism comprises a connecting unit for receiving a terminal of the detection unit positioned outside the compartment. In this way, maintenance or replacement of the detection unit will not affect the airtightness of the compartment. Furthermore, the connecting unit can also be used to receive the terminal of other kind of detection unit, such as terminals of test assemblies.
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Patent Agency Ranking
公开(公告)号：US20240429689A1
公开(公告)日：2024-12-26
申请号：US18557440
申请日：2021-05-18
Applicant: ABB Schweiz AG
Inventor： Liming Xu , Shailendra Singh , Siyuan Huang , Xingjie Chen , Liqun Huang , Dukkaiappan Subbiah Thevar
IPC: H02B13/035 , H02B13/025
Abstract: A switchgear which includes a cable compartment enclosed by walls and a cover, and a cable connector arranged in the cable compartment. The cable connector is configured to electrically connect a cable to a cable bushing located in the cable compartment. cable connector includes a first portion to which the cable is connected and a metal plate arranged inside the cable compartment. The shortest distance between a main body and an outer surface of the first portion is in the range of 0 to 10 mm.
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公开(公告)号：US20240356321A1
公开(公告)日：2024-10-24
申请号：US18586869
申请日：2024-02-26
Applicant: ABB SCHWEIZ AG
Inventor： Zicheng Liang , Congming Yan , XingJie Chen , Liqun Huang
Abstract: A bus bar system and an apparatus for bus bar connection. The bus bar system includes a plurality of members, and a component configured to couple the plurality of members to form a connection portion having a cavity. Further, the component is arranged in the cavity such that it is possible to achieve a significant reduction in the number of parts for bus bar connection without requiring a large number of screws or electric field shieldings.
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公开(公告)号：US20240356315A1
公开(公告)日：2024-10-24
申请号：US18583052
申请日：2024-02-21
Applicant: ABB SCHWEIZ AG
Inventor： Congming Yan , Zicheng Liang , Liqun Huang , Xingjie Chen
IPC: H02B13/035
CPC classification number: H02B13/0352
Abstract: A switchgear which includes at least one three-position disconnector arranged in a gas-tight space of a frame. Each phase of the disconnector includes first, second, and third fixed contacts and a moving contact. The first fixed contact is directly connected to a main busbar, so that the conductive main circuit has shorter wiring, saving floor space, and conductor materials. An outer surface of the moving contact is provided with a slot extending in an axial direction to accommodate rolling elements, which guide the moving contact to move through the second fixed contact and prevent it from rotating. The moving contact is provided with grooves, which accommodate contact pieces to realize connection with the corresponding fixed contact. The moving contact of each disconnector is coupled to the same drive shaft so that it is connected to an external operating mechanism via only one sealing point on the frame.
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公开(公告)号：US20220384127A1
公开(公告)日：2022-12-01
申请号：US17753728
申请日：2020-02-07
Applicant: ABB Schweiz AG
Inventor： Congming Yan , Liqun Huang , Xin Liu , Andre Bieri
Abstract: Embodiments of a disconnector and a switchgear, wherein the disconnector comprises a contact assembly operable to change a status of a circuit, the disconnector arranged in the circuit; shafts adapted to be driven to rotate to operate the contact assembly; and a transmission unit arranged between the shafts and comprising: a plurality of gears coupled to the shafts to enable the shafts to rotate with a mutual engagement of the plurality of gears; and a holding assembly adapted to hold radial positions of the plurality of gears to ensure the mutual engagement of the plurality of gears. By arranging the holding assembly to hold the radial positions of the gears to ensure the mutual engagement of the plurality of gears, only one input shaft and one transmission unit are enough to transmit large torques sufficient to operate the contact assembly.
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公开(公告)号：US20220172908A1
公开(公告)日：2022-06-02
申请号：US17172157
申请日：2021-02-10
Applicant: ABB Schweiz AG
Inventor： Congming Yan , Xingjie Chen , Liqun Huang , Huihuang Yang , Ziying Xiao
IPC: H01H9/26 , H02H7/22 , H01H71/10 , H02B11/133 , H01H71/02
Abstract: Embodiments of the present disclosure relate to a switch device, comprising: a first three-position switch; a second three-position switch disposed below the first three-position switch; a circuit breaker disposed between the first three-position switch and the second three-position switch. A first interlock unit is disposed above the circuit breaker and connected to the circuit breaker and the first three-position switch, and configured to block a manual operation of the first three-position switch in a closed state of the circuit breaker, and configured to block a manual closing operation of the circuit breaker while the first three-position switch is manually operated in an open state of the circuit breaker. A second interlock unit is disposed below the circuit breaker and connected to the circuit breaker and the second three-position switch, and is configured to block a manual operation of the second three-position switch in the closed state of the circuit breaker, and configured to block a manual closing operation of the circuit breaker while the second three-position switch is manually operated in the open state of the circuit breaker.
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