Relay Static Terminal, Terminal Assembly and Relay
US-2024203675-A1 · Jun 20, 2024 · US
Electromagnetic switch
US8937518B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8937518-B2 |
| Application number | US-201113696929-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 14, 2011 |
| Priority date | Aug 31, 2010 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An electromagnetic switch has a contact device having a pair of fixed contacts fixed inside an arc extinguishing chamber housing and a movable contact disposed to contact with and separate from the fixed contacts; and an electromagnetic device having a movable plunger moving between an opened position wherein the movable contact separates from the fixed contacts and a closed position wherein the movable contact contacts with the fixed contacts and pressed down. The arc extinguishing chamber housing is provided with permanent magnets to extinguish an arc generated at an opening time when the movable contact separates from the fixed contacts from a state in the closed position wherein the movable contact is contacting with the fixed contacts. In a state wherein the movable plunger is in the opened position, a magnetic circuit is formed starting from the permanent magnets and returning to the permanent magnets through the movable plunger.
First claim
Opening claim text (preview).
What is claimed is: 1. An electromagnetic switch, comprising: a contact device having a pair of fixed contacts maintaining a predetermined interval therebetween and fixed inside an arc extinguishing chamber housing, and a movable contact disposed to be capable of contacting with and separating from the pair of fixed contacts; and an electromagnetic device having a movable plunger moving between an opened position wherein the movable contact separates from the fixed contacts and…
Assignees
Inventors
Classifications
Electricity · mapped topic
Electricity · mapped topic
- H01H50/546Primary
Electricity · mapped topic
Electricity · mapped topic
- H01H50/22Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8937518B2 cover?
- An electromagnetic switch has a contact device having a pair of fixed contacts fixed inside an arc extinguishing chamber housing and a movable contact disposed to contact with and separate from the fixed contacts; and an electromagnetic device having a movable plunger moving between an opened position wherein the movable contact separates from the fixed contacts and a closed position wherein th…
- Who is the assignee on this patent?
- Suzuki Kenji, Naka Yasuhiro, Takaya Kouetsu, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification H01H50/546. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 20 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).