公开(公告)号：US20210241981A1

公开(公告)日：2021-08-05

申请号：US17048699

申请日：2018-04-19

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Antonello Antoniazzi ,  Alessandro Adami ,  Daniele Torresin ,  Francesco Agostini

IPC: H01H9/34 ,  H01H73/18

Abstract: An arc chamber 10, 20, 30, 40, 50 for a low voltage switching device comprising an insulating casing 1, having a first and a second lateral walls 2,3, a rear and a front wall 4,5, that defines an internal space housing a number of arc-breaking plates, a top wall 6 of said casing having a discharge opening 101 for venting off the gases from said internal space, said discharge opening 101 being covered by a top cover 7, 37, 47, 57. The arc chamber for a low voltage switching device comprises a filter 11, 21, 31, 41, 51 made of an open cell metal foam is positioned at said discharge opening 101.

公开(公告)号：US11837427B2

公开(公告)日：2023-12-05

申请号：US17048699

申请日：2018-04-19

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Antonello Antoniazzi ,  Alessandro Adami ,  Daniele Torresin ,  Francesco Agostini

IPC: H01H9/34 ,  H01H73/18

CPC classification number: H01H9/342 ,  H01H73/18 ,  H01H2009/347

Abstract: An arc chamber for a low voltage switching device including an insulating casing, having a first and a second lateral walls, a rear and a front wall, that defines an internal space housing a number or arc-breaking plates, a top wall of the casing having a discharge opening for venting off the gases from the internal space, the discharge opening being covered by a top cover. The arc chamber for a low voltage switching device includes a filter made of an open cell metal foam that is positioned at the discharge opening.

公开(公告)号：US20190326072A1

公开(公告)日：2019-10-24

申请号：US16385416

申请日：2019-04-16

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Michele Ferrari

IPC: H01H9/36 ,  H01H9/34

Abstract: A low-voltage circuit breaker comprising one or more electrical poles, each of said poles having an internal space with a contact area and an arc extinguishing area, a fixed contact assembly and a movable contact assembly being positioned in said contact area, said movable contact assembly being movable between a closed position in which it is into contact with said fixed contact assembly and an open position in which it is spaced apart from said fixed contact assembly, an arc chamber comprising a plurality of substantially parallel arc-breaking plates made of a ferromagnetic material being positioned in said arc extinguishing area. The low-voltage circuit breaker is characterized in that said arc chamber further comprises at least one arc-breaking plate which is at least partially made of a ceramic material.

公开(公告)号：US12087525B2

公开(公告)日：2024-09-10

申请号：US17982640

申请日：2022-11-08

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Michele Ceroni

IPC: H01H33/662 ,  H01H3/46

CPC classification number: H01H33/66207 ,  H01H3/46

Abstract: Described herein is a switch pole for a low voltage switching device including an insulating casing defining an internal space with a contact area and an arc-extinguishing area of the switch pole, a fixed contact assembly and a movable contact assembly positioned in the contact area and including, respectively, one or more fixed contacts and one or more movable contacts, which can be mutually coupled or uncoupled, and an arc chamber positioned in the arc-extinguishing area that includes a plurality of parallel arc-breaking plates. The insulating casing includes an insulating wall partially separating the contact area from the arc-extinguishing area and a channel connects the contact area to the arc-extinguishing area. The switch pole further includes an additional arc-breaking element anchored to the insulating wall, passing through the channel of the insulating wall and arranged in electrical connection with a terminal arc-breaking plate of the arc chamber.

公开(公告)号：US11355290B2

公开(公告)日：2022-06-07

申请号：US16985282

申请日：2020-08-05

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Marco Bonfanti

IPC: H01H9/30 ,  H01H9/34

Abstract: A low voltage switch pole including an insulating casing defining an internal space with a contact area and an arc extinguishing area, a fixed contact assembly and a movable contact assembly being position in the contact area, the movable contact assembly being movable between a closed position in which it is into contact with the fixed contact assembly and an open position in which it is spaced apart from the fixed contact assembly, an arc chamber including a plurality of substantially parallel metallic plates being position in the arc extinguishing area, wherein fixed contact assembly is provided with a contact support, a contact surface contacting the movable contact assembly in the closed position and positioned on the contact support, and a conductive expansion plate positioned on the contact support and extending toward the arc chamber, and wherein the fixed contact assembly is provided with a gasifying plate which is directly mounted on the conductive expansion plate.

公开(公告)号：US20210043396A1

公开(公告)日：2021-02-11

申请号：US16985282

申请日：2020-08-05

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Marco Bonfanti

IPC: H01H9/30 ,  H01H9/34

Abstract: A low voltage switch pole including an insulating casing defining an internal space with a contact area and an arc extinguishing area, a fixed contact assembly and a movable contact assembly being position in the contact area, the movable contact assembly being movable between a closed position in which it is into contact with the fixed contact assembly and an open position in which it is spaced apart from the fixed contact assembly, an arc chamber including a plurality of substantially parallel metallic plates being position in the arc extinguishing area, wherein fixed contact assembly is provided with a contact support, a contact surface contacting the movable contact assembly in the closed position and positioned on the contact support, and a conductive expansion plate positioned on the contact support and extending toward the arc chamber, and wherein the fixed contact assembly is provided with a gasifying plate which is directly mounted on the conductive expansion plate.

公开(公告)号：US20240266127A1

公开(公告)日：2024-08-08

申请号：US18426655

申请日：2024-01-30

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Pierre Corfdir

IPC: H01H33/10 ,  H01H33/53

CPC classification number: H01H33/10 ,  H01H33/53

Abstract: A switch pole for a low-voltage switching device is provided. The switch pole includes an insulating casing defining an internal space with a contact region and an arc extinguishing region of the switch pole, a first pole terminal and a second pole terminal couplable with corresponding line conductors of an electric line, a fixed contact assembly and a movable contact assembly positioned in the contact region and including one or more fixed contacts and one or more movable contacts, respectively, which can be mutually coupled or uncoupled, an arc chamber positioned in the arc extinguishing region and including a plurality of parallel arc-breaking plates, and a magnetic field generation arrangement configured to generate a magnetic field during an opening maneuver of the switch pole.

公开(公告)号：US20230145656A1

公开(公告)日：2023-05-11

申请号：US17982640

申请日：2022-11-08

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Michele Ceroni

IPC: H01H33/662 ,  H01H3/46

CPC classification number: H01H33/66207 ,  H01H3/46

Abstract: Described herein is a switch pole for a low voltage switching device including an insulating casing defining an internal space with a contact area and an arc-extinguishing area of the switch pole, a fixed contact assembly and a movable contact assembly positioned in the contact area and including, respectively, one or more fixed contacts and one or more movable contacts, which can be mutually coupled or uncoupled, and an arc chamber positioned in the arc-extinguishing area that includes a plurality of parallel arc-breaking plates. The insulating casing includes an insulating wall partially separating the contact area from the arc-extinguishing area and a channel connects the contact area to the arc-extinguishing area. The switch pole further includes an additional arc-breaking element anchored to the insulating wall, passing through the channel of the insulating wall and arranged in electrical connection with a terminal arc-breaking plate of the arc chamber.

公开(公告)号：US20210249208A1

公开(公告)日：2021-08-12

申请号：US17049071

申请日：2019-04-19

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Marco Bonfanti

IPC: H01H33/42 ,  H01H33/08 ,  H01H33/53 ,  H01H71/10

Abstract: A low-voltage circuit breaker, including: at least one fixed contact, for each pole, which is electrically connected to a terminal for connection to an electric circuit and a corresponding moving contact which is associable/separable with respect to the fixed contact by means of a rotation of the moving contact; an arc chamber positioned in correspondence of the fixed contact; a rotating contact supporting shaft common to all poles, which is functionally connected to an actuation mechanism of the circuit breaker, the actuation mechanism including a kinematic system operatively connected to an actuation lever for opening/closing operations and provided with opening springs and a tripping shaft for releasing the kinematic system and allowing its movement from a closed to an open position. The low-voltage circuit breaker includes for each pole a quick acting trip device including a plunger inserted in a first channel connected to an arc chamber of the corresponding pole, the first channel being positioned proximate to the at least one fixed contact with its longitudinal axis perpendicular to the axis of the rotating contact supporting shaft, the plunger having a first operative surface subjected to the pressure of the arc chamber and a second operative surface, the quick acting trip device further includes a trip lever having a first portion cooperating with the tripping shaft and a second portion cooperating with the second operative surface of the plunger.

公开(公告)号：US09715979B2

公开(公告)日：2017-07-25

申请号：US15003131

申请日：2016-01-21

Applicant: Abb S.p.A.

Inventor： Nicola Bresciani ,  Pierantonio Arrighetti

IPC: H01H33/10 ,  H01H33/42 ,  H01H33/74 ,  H01H1/22 ,  H01H9/34

CPC classification number: H01H33/10 ,  H01H1/226 ,  H01H9/342 ,  H01H9/346 ,  H01H33/42 ,  H01H33/74 ,  H01H2009/348 ,  H01H2205/002

Abstract: A low voltage switch pole which comprises an insulating casing having lateral walls and a front and a rear wall and defining an internal space with a contact area and an arc extinguishing area, a fixed contact assembly and a movable contact assembly being positioned in said contact area, said movable contact assembly being movable between a closed position in which it is into contact with said fixed contact assembly and an open position in which it is spaced apart from said fixed contact assembly, an arc chamber comprising a plurality of substantially parallel metallic plates inserted into an enclosure made of insulating material being positioned in said arc extinguishing area; the switch pole further comprises an insulating wall which is positioned in said internal space between said contact area and said arc extinguishing area and partially separates said contact area from said arc extinguishing area, a channel connecting said contact area to said arc extinguishing area being provided in said insulating wall.