High voltage electrical disconnect device with magnetic arc deflection assembly
US-2017330720-A1 · Nov 16, 2017 · US
Electromagnetic contactor
US8994482B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8994482-B2 |
| Application number | US-201213878366-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 9, 2012 |
| Priority date | May 19, 2011 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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An electromagnetic contactor has an arc extinguishing chamber housing a contact mechanism having a pair of fixed contacts and a movable contact that contacts with the pair of fixed contacts. The arc extinguishing chamber has a plate-shaped fixed contact support insulating substrate including through holes to fix at least the pair of fixed contacts and formed with a metal foil on an outer peripheral circumferential edge of one surface by a metalizing process. The pair of fixed contacts and a metal cylindrical body are brazed and joined to the metal foils of the fixed contact support insulating substrate, and an insulating cylindrical body is disposed on an inner peripheral surface of the metal cylindrical body.
First claim
Opening claim text (preview).
What is claimed is: 1. An electromagnetic contactor, comprising: a contact mechanism having a pair of fixed contacts and a movable contact that contacts with the pair of fixed contacts, an arc extinguishing chamber housing the contact mechanism, and including a plate-shaped fixed contact support insulating substrate having through holes to fix the pair of fixed contacts, a metal cylindrical body fixed under the fixed contact support insulating substrate, and an insulating cylind…
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Frequently asked questions
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- What does patent US8994482B2 cover?
- An electromagnetic contactor has an arc extinguishing chamber housing a contact mechanism having a pair of fixed contacts and a movable contact that contacts with the pair of fixed contacts. The arc extinguishing chamber has a plate-shaped fixed contact support insulating substrate including through holes to fix at least the pair of fixed contacts and formed with a metal foil on an outer periph…
- Who is the assignee on this patent?
- Yokoyama Shoji, Yamamoto Yuichi, Fuji Electric Co Ltd, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H01H9/346. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 2015 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).