Electromagnetic relay

US2017221663A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2017221663-A1
Application numberUS-201715414692-A
CountryUS
Kind codeA1
Filing dateJan 25, 2017
Priority dateJan 29, 2016
Publication dateAug 3, 2017
Grant date

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  1. Title

    What the patent document calls the invention.

  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An electromagnetic relay includes an electromagnet unit, a contact unit including a movable contact spring with a movable contact provided thereon and a fixed contact spring with a fixed contact provided thereon, and a base block configured to support the electromagnet unit and the contact unit, wherein the electromagnet unit is supported at a first face of the base block, and the contact unit is supported at a second face of the base block facing in an opposite direction from the first face, and wherein the base block includes a first insulating wall extending from the first face alongside the electromagnet unit and a second insulating wall extending from the second face alongside the contact unit, the second insulating wall being situated on an opposite side from the first insulating wall across the second face.

First claim

Opening claim text (preview).

What is claimed is 1 . An electromagnetic relay, comprising: a base block; an electromagnet unit supported on a first face of the base block, the electromagnetic unit including an iron core, a coil winded around the iron core, and an armature configured to be pivotably supported on the iron core; a contact unit supported on the base block, the contact unit including a movable contact spring with a movable contact provided thereon and a fixed contact spring with a fixed contact provided thereon; and a first insulating wall extending from the first face alongside the electromagnetic unit. 2 . The electromagnetic relay as claimed in claim 1 , wherein the iron core includes a wider portion at the one end thereof, the wider portion being wider than a central portion of the iron core and serving as a magnetic pole face, and wherein at least part of the coil and the wider portion is covered with the first insulating wall. 3 . The electromagnetic relay as claimed in claim 1 , wherein the first insulating wall has a recess formed in a side face thereof.

Assignees

Inventors

Classifications

  • intermediate part being generally a slide plate, e.g. a card · CPC title

  • Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature · CPC title

  • H01H50/36Primary

    Stationary parts of magnetic circuit, e.g. yoke · CPC title

  • Means to improve the overall withstanding voltage, e.g. creepage distances · CPC title

  • H01H50/026Primary

    Details concerning isolation between driving and switching circuit · CPC title

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What does patent US2017221663A1 cover?
An electromagnetic relay includes an electromagnet unit, a contact unit including a movable contact spring with a movable contact provided thereon and a fixed contact spring with a fixed contact provided thereon, and a base block configured to support the electromagnet unit and the contact unit, wherein the electromagnet unit is supported at a first face of the base block, and the contact unit …
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 Thu Aug 03 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).