Extinguishing unit of molded case circuit breaker
US-10163598-B2 · Dec 25, 2018 · US
Switching device
US9324519B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9324519-B2 |
| Application number | US-201214401469-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 30, 2012 |
| Priority date | May 30, 2012 |
| Publication date | Apr 26, 2016 |
| Grant date | Apr 26, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A low-voltage switching device including a plurality of arc-extinguishing chambers, wherein each of the arc-extinguishing chambers encloses a contacting unit including a stationary contact and a movable contact and arcs are formed when the movable contact is disconnected to the stationary contact, each of the arc-extinguishing chamber including a plurality of U-shaped arc extinguishing plates arranged for splitting, guiding and cooling the arc formed between the contacts and sidewalls provided with guiding means for guiding the arms of the arc extinguishing plates. The guiding means includes a plurality of supporting plates and the supporting plates are arranged protruding towards interior of the arc-extinguishing chamber for receiving the arms of the arc-extinguishing plates and for providing electrical isolation between arms of two adjacent arc extinguishing plates.
First claim
Opening claim text (preview).
The invention claimed is: 1. A low-voltage switching device comprising a plurality of arc-extinguishing chambers, wherein each of the arc-extinguishing chambers encloses a contacting unit including a stationary contact and a movable contact and arcs are formed when the movable contact is disconnected to the stationary contact, each of the arc-extinguishing chamber comprising a plurality of U-shaped arc-extinguishing plates arranged for splitting, guiding and cooling the arc formed between the contacts and sidewalls provided with guiding means for guiding the arms of the arc-extinguishing plates, wherein the guiding means comprises a plurality of supporting plates, characterized in that the supporting plates are arranged protruding towards interior of the arc-extinguishing chamber for receiving the arms of the arc-extinguishing plates and for providing electrical isolation between arms of two adjacent arc-extinguishing plates and, each of the supporting plates is longer and wider than each of the arms of an arc-distinguishing plate. 2. The low-voltage switching device according to claim 1 , wherein the low-voltage switching device further comprises a base part and at least one of the arc-extinguishing chambers is detachably mounted to the base part. 3. The low-voltage switching device according to claim 1 , wherein the low-voltage switching device further comprises a base part and at least one of the arc-extinguishing chambers is moulded on the base part.
Assignees
Inventors
Classifications
- H01H9/362Primary
Mounting of plates in arc chamber · CPC title
- H01H9/0038Primary
making use of vacuum switches · CPC title
using U-shaped plates · CPC title
- H01H33/10Primary
Metal parts · CPC title
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- What does patent US9324519B2 cover?
- A low-voltage switching device including a plurality of arc-extinguishing chambers, wherein each of the arc-extinguishing chambers encloses a contacting unit including a stationary contact and a movable contact and arcs are formed when the movable contact is disconnected to the stationary contact, each of the arc-extinguishing chamber including a plurality of U-shaped arc extinguishing plates a…
- Who is the assignee on this patent?
- Karlen David, Abb Technology Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01H9/362. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 26 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).