US 10,622,166 B2Granted

Disconnecting switch having anti-icing device

AssigneeABB Schweiz AG

InventorsJian Zhang, Han Wang, Xuan Liu

Life of this patent

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Abstract

A disconnector with an anti-icing arrangement includes a main blade moving contact, a main blade arm, a main blade static contact, a main blade transmission arrangement and a main blade anti-icing arrangement. The main blade transmission arrangement is adapted for driving the main blade arm to move. The main blade anti-icing arrangement includes a main blade anti-icing shield and a main blade anti-icing shield transmission arrangement. The main blade anti-icing shield transmission arrangement is adapted for drive the main blade anti-icing shield such that the main blade anti-icing shield shields the main blade moving contact in an opened position to keep ice and snow and rainwater from covering a surface of the main blade moving contact, and moves away from the main blade moving contact in a closed position, to enable the main blade moving contact to be contacted with the main blade static contact.

Claims18

Dependent claims

A disconnector with an anti-icing arrangement, comprising:

a main blade moving contact, a main blade arm, a main blade static contact and a main blade transmission arrangement that drives the main blade arm to move,
a main blade anti-icing arrangement that includes a main blade anti-icing shield and a main blade anti-icing shield transmission arrangement, wherein the main blade anti-icing shield transmission arrangement is adapted for driving the main blade anti-icing shield, such that the main blade anti-icing shield shields the main blade moving contact in an opening operation to keep ice and snow and rainwater from covering a surface of the main blade moving contact, and moves away from the main blade moving contact in a closing operation to enable the main blade moving contact to be contacted with the main blade static contact;
wherein the main blade anti-icing shield transmission arrangement comprises a main blade slide rail secured on the main blade moving contact for enabling the main blade anti-icing shield to move along the main blade slide rail.

Dependencies are inferred from the claim text.

Facts

Application: 15/998,469Filed 15 Aug 2018 · continuation
Priority: 26 Feb 2016
Published: US 2019/0006128 A13 Jan 2019
Granted: 14 Apr 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H01H 1/64
Contacts: protective enclosures, baffle plates, or screens for contacts
H01H 3/46
Driving mechanisms, i.e. for transmitting driving force to the contacts: using rod or lever linkage, e.g. toggle
H01H 9/26
Interlocking, locking, or latching mechanisms: for interlocking two or more switches
H01H 31/003
Air-break switches for high tension without arc-extinguishing or arc-preventing means: earthing switches