Working cylinder for a drive of an electric circuit breaker
AssigneeABB Schweiz AG
InventorJörg Knospe
Life of this patent
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Abstract
An exemplary working cylinder for a drive of an electric circuit breaker includes a base that includes a cylinder head and a cylinder body that are connected to one another. Additional components are fastened to the cylinder head as a core piece of the drive, and a thrust ring is guided on an outer surface of the cylinder body. The thrust ring compresses mechanical springs in the mechanical resilient energy storage device by way of a storage piston in a storage module.
Claims17
A drive for an electric circuit breaker of a high voltage switching device, comprising:
- a mechanical resilient energy storage device;
- and
- a working cylinder including a base body,
- wherein a piston rod is guided in the working cylinder and a moving contact member of the electric circuit breaker is actuated via the piston rod,
- wherein the base body is formed of two separate components including a cylinder head and a cylinder body, and wherein said two separate components are fastened to one another,
- wherein a thrust ring is guided on an outer surface of the cylinder body to compress mechanical springs in the mechanical resilient energy storage device, and wherein an outer contour of the cylinder head is used as a bearing surface for supporting the thrust ring.
A drive for an electric circuit breaker of a high voltage switching device, comprising:
- a mechanical resilient energy storage device;
- and
- a working cylinder including a base body,
- wherein a piston rod is guided in the working cylinder and a moving contact member of the electric circuit breaker is actuated through the piston rod,
- wherein the base body is formed of separate first and second components, and wherein said first and second components are connected by insertion of the first component into a cutout of the second component and are fastened to one another,
- wherein a thrust ring is guided on an outer surface of the second component to compress mechanical springs in the mechanical resilient energy storage device, and
- wherein an outer contour of the second component is used as a bearing surface for supporting the thrust ring of the mechanical energy storage device.
A drive apparatus for an electrical circuit breaker of a high voltage switching device, the drive apparatus comprising:
- a base including (i) a head including a cut-out defined therein and (ii) a body, the body including a through passage defined by a running surface of the body, and
- a rod extending through the base, the rod including a piston arranged in contact with the running surface to reciprocate the rod through the base by hydraulic pressure to actuate the electrical circuit breaker,
- wherein the body is received within the cut-out to connect to the head with the body by non-positive locking, and
- wherein the rod extends through and contacts the head for guidance.
Dependencies are inferred from the claim text.