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公开(公告)号：EP3929953A1
公开(公告)日：2021-12-29
申请号：EP21305847.2
申请日：2021-06-21
发明人： PAN, Yanming , LIU, Zhenzhong
摘要： The present invention relates to a moving contact pressure maintaining mechanism and a dual-power transfer switch. The moving contact pressure maintaining mechanism includes a frame; a first elastic piece, arranged in a first elastic piece accommodating region, one end of the first elastic piece is connected to a first end wall of the frame, and the other end of the first elastic piece is connected to a first baffle plate; a second elastic piece, arranged in a second elastic piece accommodating region, one end of the second elastic piece is connected to a second end wall of the frame, and the other end of the second elastic piece is connected to a second baffle plate, and the first baffle plate and the second baffle plate are slidably arranged in the frame; a stopper, mounted on a moving contact bracket and extending into the frame, at a double-off position of the dual-power transfer switch, the moving contact respectively abuts against the first baffle plate and the second baffle plate, and the first baffle plate and the second baffle plate abut against two ends of the stopper, if the dual-power transfer switch is switched to a first power-on position or a second power-on position, a moving amount of the moving contact in the frame is equal to a sum of a compression amount of the first elastic piece and a compression amount of the second elastic piece.
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公开(公告)号：EP4258311A1
公开(公告)日：2023-10-11
申请号：EP23305438.6
申请日：2023-03-29
发明人： WANG, Han , LIU, Zhenzhong , XIE, Haoyu , GENG, Xiangyu , PAN, Yanming
摘要： The invention relates to an arc extinguishing structure and a dual power changeover switch with the arc extinguishing structure. The arc extinguishing structure includes an arc extinguishing chamber (10) and an arc extinguishing shell (20). The arc extinguishing chamber (10) comprises a plurality of arc extinguishing grids (11) separated from each other and arranged as a first arc extinguishing grid group (A) and a second arc extinguishing grid group (B) that is separated from the first arc extinguishing grid group (A) by an arc extinguishing chamber gap (17). The arc extinguishing shell (20) is used for accommodate the arc extinguishing chamber (10) and provided with an arc jetting opening (26) that is aligned with the arc extinguishing chamber gap (17). The arc extinguishing structure is provided with an arc travelling channel (L) communicated with the arc jetting opening (26) and having a bent structure.
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公开(公告)号：EP4258306A1
公开(公告)日：2023-10-11
申请号：EP23305507.8
申请日：2023-04-06
发明人： LIU, Zhenzhong , PAN, Yanming , ZHOU, Bin
摘要： A switching system comprises two stationary contacts and a movable contact; the movable contact switches between the two stationary contacts; the movable contact is provided with a contact zone which can contact with the stationary contacts; an oil reservoir is provided in the contact zone.
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公开(公告)号：EP4415015A1
公开(公告)日：2024-08-14
申请号：EP24305188.5
申请日：2024-02-02
发明人： PAN, Yanming , LIU, Zhenzhong , LI, Yile
CPC分类号： H01H2009/34820130101 , H01H9/34 , H01H9/0066 , H01H1/5833 , H01H1/42
摘要： An automatic transfer switch, including: a stationary contact, including a stationary arc contact point and a stationary main contact point, and configured to receive current from a power supply; a movable contact, including a movable arc contact point and a movable main contact point, being pivotally connected to a load and capable of pivoting between a closing position contacting with the stationary contact and a opening position not contacting with the stationary contact; an electric arc extinguishing chamber, including a plurality of grid pieces, and configured to eliminate an electric arc generated when the movable contact and the stationary contact are switched off, the stationary contact includes a first part and a second part which are connected at an angle, the first part is configured to receive current from a power supply, the second part is configured to be in contact with the movable contact, and an end of the second part extends to be flush with an upper edge of the grid pieces of the electric arc extinguishing chamber, and a flow direction of current in the second part of the stationary contact is approximately opposite to a flow direction of current in the movable contact, so as to provide a Lorentz force to an electric arc generated during disconnecting towards the electric arc extinguishing chamber.
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公开(公告)号：EP4270431A1
公开(公告)日：2023-11-01
申请号：EP23305535.9
申请日：2023-04-11
发明人： PAN, Yanming , LIU, Zhenzhong , ZHOU, Bin
摘要： The present disclosure relates to an electrical switch, comprising: a first static contact, an outlet terminal, and movable contact assembly, the movable contact assembly connected to the outlet terminal and configured to rotate between a first close position and a disconnect position about a rotation axis, the movable contact assembly comprising at least one pair of movable contacts disposed opposite each other and extending along a longitudinal axis, wherein the at least one pair of movable contacts comprise first portion and second portion opposite each other along the longitudinal axis respectively, the first portion contacting the first static contact in the first close position and disconnected from the first static contact in the disconnect position, the second portion remaining connected to the outlet terminal, and wherein the rotation axis passes through the second portion.
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6.发明公开
公开(公告)号：EP3993002A1
公开(公告)日：2022-05-04
申请号：EP21306463.7
申请日：2021-10-20
发明人： PAN, Yanming , LIU, Zhenzhong
IPC分类号： H01H1/22
摘要： A movable contact pressure maintaining structure, acting on a movable contact of a dual-power transfer switch, wherein the movable contact pressure maintaining structure includes at least a pair of spring holders and at least a pair of springs; two corresponding spring holders in the at least a pair of spring holders are staggered and installed together relative to each other; the two spring holders are arranged such that two springs of the at least a pair of springs are respectively installed between the two spring holders in parallel; the movable contact is held between the two spring holders and between the two springs. A movable contact assembly including the movable contact pressure maintaining structure as described above. A dual-power transfer switch including the movable contact pressure maintaining structure as described above.
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公开(公告)号：EP3929952A1
公开(公告)日：2021-12-29
申请号：EP21305848.0
申请日：2021-06-21
发明人： LIU, Zhenzhong , PAN, Yanming , YU, Gang
摘要： A breaking unit with an auxiliary shunt component, including a first power supply static contact, a second power supply static contact, a first electromotive force compensator, a second electromotive force compensator, a moving contact component which are accommodated in a shell of the breaking unit, and a soft pigtail wire connected between the moving contact component and the first electromotive force compensator and the second electromotive force compensator; the auxiliary shunt component includes a first shunt member and a second shunt member; the first shunt member is connected with the first electromotive force compensator; the second shunt member is connected with the second electromotive force compensator; when the moving contact component is in contact with the first power supply static contact, the moving contact component is in contact with the first shunt member, and the current flowing through the first shunt member is greater than the current flowing through the soft pigtail wire; when the moving contact component is in contact with the second power supply static contact, the moving contact component is in contact with the second shunt member, and the current flowing through the second shunt member is greater than the current flowing through the soft pigtail wire. A dual-power transfer switch, including the breaking unit as described above.
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8.发明公开
公开(公告)号：EP3872823A1
公开(公告)日：2021-09-01
申请号：EP21305233.5
申请日：2021-02-26
发明人： ZHOU, Bin , PAN, Yanming , LIU, Zhenzhong
IPC分类号： H01H3/38 , H01H19/24 , H01H19/46 , H01H21/42 , H01H21/46 , H01H3/58 , H01H9/24 , H01H9/26 , H01H3/30
摘要： This disclosure relates to a neutral line overlapping mechanism for a dual power automatic transfer switch, which comprises a first tie rod assembly and a second tie rod assembly; a first neutral pole moving contact assembly and a first neutral pole static contact assembly and a second neutral pole moving contact assembly and a second neutral pole static contact assembly and is configured to: when the dual-power automatic transfer switch is in the dual-split position, one of neutral poles is in the on state; the first and the second neutral pole moving contact assembly do not operate when the double power automatic transfer switch is switched off; the first neutral pole moving contact assembly and the first moving contact assembly are interlocked or the second neutral pole moving contact assembly and the second moving contact assembly are interlocked when a first power supply of the dual-power automatic transfer switch is switched on.
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