公开(公告)号：US20190334326A1

公开(公告)日：2019-10-31

申请号：US16376398

申请日：2019-04-05

Applicant: ABB S.p.A.

Inventor： Qi Zhou ,  Yanfang Ye ,  Jiancheng Ren

IPC: H02B11/10

Abstract: The present disclosure relates to a withdrawable base module for a switch. The withdrawable base module comprises a base coupled to a busbar for electrically connected to the switch; a conversion assembly coupled to the base and comprising a drive mechanism, a first female contact and a carrying mechanism adapted to carry the switch; and an auxiliary assembly being slidable relative to the conversion assembly and comprising a first male contact electrically connected to the switch; wherein the drive mechanism is operable to drive the auxiliary assembly to cause the first male contact to move towards and contact the first female contact. The withdrawable base module according to embodiments of the present disclosure can provide a test circuit for the switch, and can achieve the rocking-in or rocking-out of the switch without additional human intervention after completion of the test.

公开(公告)号：US10892128B2

公开(公告)日：2021-01-12

申请号：US16366181

申请日：2019-03-27

Applicant: ABB S.p.A.

Inventor： Wensheng Liu ,  Jiancheng Ren ,  Baiqin Liang

IPC: H01H71/12 ,  H01H71/58 ,  H01H71/10 ,  H01H83/14

Abstract: The present application provides a residual-current protection device and a tripper. The residual-current protection device comprises: a flux transformer receiving a residual-current signal; a tripping output element outputting ON/OFF signals; an energy storage mechanism adapted to switch between an energy storage state and an energy release state, the energy storage mechanism having a locking unit that locks the energy storage mechanism in the energy storage state; and a transmission mechanism braked by the flux transformer, which drives the tripping output element to move and drives state of the energy storage mechanism to switch; the transmission mechanism comprising: a first rack cooperating with the locking unit, a second rack driving the tripping output element, and a reduction gear with a big gear engaged with the first rack and a small gear engaged with the second rack. By means of the gear rack transmission mechanism of the residual-current protection device, reduction transmission can be effected, driving force needed by energy storage may be reduced, and thus design requirements as high transmission efficiency, easy processing and assembly as well as low costs can be satisfied.

公开(公告)号：US10855061B2

公开(公告)日：2020-12-01

申请号：US16376398

申请日：2019-04-05

Applicant: ABB S.p.A.

Inventor： Qi Zhou ,  Yanfang Ye ,  Jiancheng Ren

IPC: H02B11/167 ,  H02B11/10 ,  H02B11/173 ,  H02B11/127 ,  H01H9/00

Abstract: The present disclosure relates to a withdrawable base module for a switch. The withdrawable base module comprises a base coupled to a busbar for electrically connected to the switch; a conversion assembly coupled to the base and comprising a drive mechanism, a first female contact and a carrying mechanism adapted to carry the switch; and an auxiliary assembly being slidable relative to the conversion assembly and comprising a first male contact electrically connected to the switch; wherein the drive mechanism is operable to drive the auxiliary assembly to cause the first male contact to move towards and contact the first female contact. The withdrawable base module according to embodiments of the present disclosure can provide a test circuit for the switch, and can achieve the rocking-in or rocking-out of the switch without additional human intervention after completion of the test.

公开(公告)号：US20190304730A1

公开(公告)日：2019-10-03

申请号：US16366181

申请日：2019-03-27

Applicant: ABB S.p.A.

Inventor： Wensheng Liu ,  Jiancheng Ren ,  Baiqin Liang

IPC: H01H71/12 ,  H01H71/58

Abstract: The present application provides a residual-current protection device and a tripper. The residual-current protection device comprises: a flux transformer receiving a residual-current signal; a tripping output element outputting ON/OFF signals; an energy storage mechanism adapted to switch between an energy storage state and an energy release state, the energy storage mechanism having a locking unit that locks the energy storage mechanism in the energy storage state; and a transmission mechanism braked by the flux transformer, which drives the tripping output element to move and drives state of the energy storage mechanism to switch; the transmission mechanism comprising: a first rack cooperating with the locking unit, a second rack driving the tripping output element, and a reduction gear with a big gear engaged with the first rack and a small gear engaged with the second rack. By means of the gear rack transmission mechanism of the residual-current protection device, reduction transmission can be effected, driving force needed by energy storage may be reduced, and thus design requirements as high transmission efficiency, easy processing and assembly as well as low costs can be satisfied.

公开(公告)号：US20240029986A1

公开(公告)日：2024-01-25

申请号：US18254791

申请日：2020-12-14

Applicant: ABB S.P.A.

Inventor： Wensheng Liu ,  Jiancheng Ren ,  Qi Zhou ,  Yanfang Ye

IPC: H01H71/10

CPC classification number: H01H71/10

Abstract: An adjustment mechanism for a circuit breaker and the corresponding circuit breaker. The adjustment mechanism includes a pin adapted to move with respect to a base part of the circuit breaker along a predefined path; a first linkage coupled to the base part and adapted to drive a first terminal of the circuit breaker to move towards or away from the base part; and a second linkage coupled to a second terminal of the circuit breaker and adapted to be actuated by the pin to drive the second terminal to move towards or away from the base part. The groove has a first segment; and the second linkage is actuated by the pin and the first linkage is not actuated by the pin when the pin moves within the first segment in a first direction along the predefined path.