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US-2015022296-A1 · Jan 22, 2015 · US
Electromagnetic relay
US9299520B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9299520-B2 |
| Application number | US-201414449229-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 1, 2014 |
| Priority date | Aug 26, 2013 |
| Publication date | Mar 29, 2016 |
| Grant date | Mar 29, 2016 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
An electromagnetic relay includes a contact part including a fixed contact and a movable contact, and a drive part including a fixed core and a movable core. The movable core is connected to the movable contact via an axial core. The fixed core includes a plate member, which is positioned between the contact part and the drive part and includes a through hole through which the axial core is inserted. The movable core includes a convex part protruding in a direction opposing the plate member. The plate member includes a concave part opposing the convex part and having a shape corresponding to the convex part.
First claim
Opening claim text (preview).
What is claimed is: 1. An electromagnetic relay comprising: a contact part including a fixed contact and a movable contact; and a drive part including a fixed core and a movable core which is connected to the movable contact via an axial core; wherein the fixed core includes a plate member which is positioned between the contact part and the drive part and includes a through hole through which the axial core is inserted; wherein the movable core includes a convex part protruding in a direction opposing the plate member; wherein the plate member includes a concave part opposing the convex part and having a shape corresponding to the convex part; and wherein the convex part has a truncated cone configuration, a part of the truncated cone including a protrusion formed around a perimeter of the movable core, and wherein the concave part corresponds to the truncated cone including the protrusion. 2. The electromagnetic relay as claimed in claim 1 , wherein the plate member includes a backside convex part at a backside of the concave part. 3. An electromagnetic relay comprising: a contact part including a fixed contact and a movable contact; and a drive part including a fixed core and a movable core which is connected to the movable contact via an axial core; wherein the fixed core includes a plate member which is positioned between the contact part and the drive part and includes a through hole through which the axial core is inserted; wherein the movable core includes a concave part opposing the plate member; wherein the plate member includes a convex part opposing the concave part; and wherein the concave part includes a protrusion formed around a perimeter of the movable core, and wherein the concave part including the protrusion corresponds to the convex part. 4. The electromagnetic relay as claimed in claim 3 , wherein the plate member includes a backside concave part at a backside of the concave part.
Assignees
Inventors
Classifications
Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay · CPC title
movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil · CPC title
for contactors having bridging contacts · CPC title
- H01H50/36Primary
Stationary parts of magnetic circuit, e.g. yoke · CPC title
Movable parts of magnetic circuits, e.g. armature · CPC title
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Frequently asked questions
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- What does patent US9299520B2 cover?
- An electromagnetic relay includes a contact part including a fixed contact and a movable contact, and a drive part including a fixed core and a movable core. The movable core is connected to the movable contact via an axial core. The fixed core includes a plate member, which is positioned between the contact part and the drive part and includes a through hole through which the axial core is ins…
- Who is the assignee on this patent?
- Fujitsu Component Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01H50/36. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 29 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).