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：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：US11569052B2

公开(公告)日：2023-01-31

申请号：US16944275

申请日：2020-07-31

Applicant: ABB S.p.A.

Inventor： Nicola Bresciani ,  Marco Bonfanti

IPC: H01H71/10 ,  H01H1/20

Abstract: A pole actuation booster mechanism for a four-poles low voltage circuit breaker, which includes: a first operating member adapted to be operatively connected to the operating shaft of the circuit breaker and moving together with said shaft during its rotation from an open position to a closed position, and vice-versa, of said circuit breaker over a range of movement having a first, a second and a third portion of movement, the first operating member having a first operating end; an operating assembly including at least an elastic element operatively connected to a lever, the first operating member being disengaged from said operating assembly during the first portion of its movement and engaged with the lever during the second and third portions of its movement. During a closing operation of the circuit breaker the first operating member moves first along the first portion of movement driven by the operating shaft and disengaged from the operating assembly, then moves along the second portion of movement driven by the operating shaft and engaged with the lever and transmitting energy to the operating assembly; and finally moves along the third portion of movement driven by the lever and transmitting energy to the operating shaft.

公开(公告)号：USD1040115S1

公开(公告)日：2024-08-27

申请号：US29813286

申请日：2021-10-27

Applicant: ABB S.p.A.

Designer： Antonio Fidigatti ,  Luigi-Arturo Degli Innocenti ,  Marco Bonfanti

Abstract: FIG. 1 is a perspective view of a component for circuit breakers showing the new design.
FIG. 2 is right side view of the component of FIG. 1.
FIG. 3 is a left side view of the component of FIG. 1.
FIG. 4 is a front view of the component of FIG. 1.
FIG. 5 is a rear view of the component of FIG. 1.
FIG. 6 is a top view of the component of FIG. 1; and,
FIG. 7 is a bottom view of the component of FIG. 1.
In these drawings, the solid lines illustrate the claimed ornamental design, whereas any broken lines illustrate unclaimed subject matter and form no part of the claimed design.

公开(公告)号：USD1032548S1

公开(公告)日：2024-06-25

申请号：US29813291

申请日：2021-10-27

Applicant: ABB S.p.A.

Designer： Antonio Fidigatti ,  Luigi-Arturo Degli Innocenti ,  Marco Bonfanti

Abstract: FIG. 1 is a perspective view of a component for circuit breakers showing the new design.
FIG. 2 is right side view of the component of FIG. 1.
FIG. 3 is a left side view of the component of FIG. 1.
FIG. 4 is a front view of the component of FIG. 1.
FIG. 5 is a rear view of the component of FIG. 1.
FIG. 6 is a top view of the component of FIG. 1; and,
FIG. 7 is a bottom view of the component of FIG. 1.
In these drawings, the solid lines illustrate the claimed ornamental design, whereas any broken lines illustrate unclaimed subject matter and form no part of the claimed design.

公开(公告)号：US20200381188A1

公开(公告)日：2020-12-03

申请号：US16887378

申请日：2020-05-29

Applicant: ABB S.p.A.

Inventor： Marco Bonfanti ,  Mauro Ghislotti ,  Michele Ceroni

IPC: H01H1/20 ,  H01H1/22 ,  H01H73/04

Abstract: A low voltage contact assembly including a rotating support having a body adapted to rotate around a rotation axis and supporting at least a first couple of movable contacts that can be coupled to/uncoupled from corresponding first fixed contacts by rotation around said rotation axis, the first couple of movable contacts including a first and a second movable contacts housed in the rotating support and each having a corresponding first and second elongated contact body with a contact end protruding from the rotating support, the first and second elongated contact bodies lying parallel to each other in a rotation plane substantially perpendicular to the rotation axis. The low voltage assembly further includes a pressure exerting device having a pressing bar operatively coupled to the first and second elongated contact body and transversally placed with respect to the rotation plane of the first and second elongated contact bodies, and a first and a second elastic elements positioned at opposite ends of the pressing bar, the pressing bar further including a first and a second operating surface each including a corresponding first and second pressing surface protruding from the pressing bar and respectively acting on the first and second elongated contact body.

公开(公告)号：USD1023979S1

公开(公告)日：2024-04-23

申请号：US29813290

申请日：2021-10-27

Applicant: ABB S.p.A.

Designer： Antonio Fidigatti ,  Luigi-Arturo Degli Innocenti ,  Marco Bonfanti

Abstract: FIG. 1 is a perspective view of a component for circuit breakers showing the new design.
FIG. 2 is right side view of the component of FIG. 1.
FIG. 3 is a left side view of the component of FIG. 1.
FIG. 4 is a front view of the component of FIG. 1.
FIG. 5 is a rear view of the component of FIG. 1.
FIG. 6 is a top view of the component of FIG. 1; and,
FIG. 7 is a bottom view of the component of FIG. 1.
In these drawings, the solid lines illustrate the claimed ornamental design, whereas any broken lines illustrate unclaimed subject matter and form no part of the claimed design.

公开(公告)号：US11804345B2

公开(公告)日：2023-10-31

申请号：US17049071

申请日：2019-04-19

Applicant: ABB S.p.A.

Inventor： Pierantonio Arrighetti ,  Marco Bonfanti

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

CPC classification number: H01H33/42 ,  H01H33/08 ,  H01H33/53 ,  H01H71/10

Abstract: A low-voltage circuit breaker includes 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 a rotation of the moving contact. The low-voltage circuit breaker further includes an arc chamber positioned in correspondence of the fixed contact, and a rotating contact supporting shaft common to all poles, which is functionally connected to an actuation mechanism of the circuit breaker, where the actuation mechanism includes 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 further includes, for each pole, a quick acting trip device.

公开(公告)号：US11437200B2

公开(公告)日：2022-09-06

申请号：US16887378

申请日：2020-05-29

Applicant: ABB S.p.A.

Inventor： Marco Bonfanti ,  Mauro Ghislotti ,  Michele Ceroni

IPC: H01H1/20 ,  H01H1/22 ,  H01H73/04

Abstract: A low voltage contact assembly including a rotating support having a body adapted to rotate around a rotation axis and supporting at least a first couple of movable contacts that can be coupled to/uncoupled from corresponding first fixed contacts by rotation around said rotation axis. The first couple of movable contacts include a first and a second movable contacts housed in the rotating support. The low voltage assembly further includes a pressure exerting device having a pressing bar operatively coupled to the first and second elongated contact body and transversally placed with respect to the rotation plane of the first and second elongated contact bodies.