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Electromagnetic relay

A technology of electromagnetic relays and electromagnets, applied in the direction of electromagnetic relays, relays, detailed information of electromagnetic relays, etc., can solve the problems of large current consumption, difficult contact fault state judgment, large volume, etc., and achieve the effect of increased power consumption

Pending Publication Date: 2019-12-10
FUJITSU COMPONENENT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When it is required to improve the output performance and charging performance (higher voltage / higher capacitance) of the relay, a plunger-type relay in the shape of connecting two contacts in series can cut off the load current circuit through two points, and Although the plunger type relay has a solid structure, it is bulky and consumes a lot of current
In addition, self-holding relays can reduce power consumption, but since the on-off state of the relay does not depend on the on-off of the drive current, it is difficult to judge the contact fault state

Method used

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  • Electromagnetic relay
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Embodiment Construction

[0026] Next, embodiments of the present invention will be described with reference to the drawings. In the referred drawings, the same reference numerals are assigned to the same components or functional parts. In order to facilitate understanding, the scales of these drawings are appropriately changed. In addition, the form shown in drawing is an example for carrying out this invention, and this invention is not limited to the form shown.

[0027] A hinge-type relay generally includes an electromagnet unit; a movable unit that moves by the operation of the electromagnet unit; and a contact mechanism unit that switches the contact / non-contact state as the movable unit moves. A hinge type relay having such a configuration has a simpler structure and fewer parts than a plunger type relay or a self-holding type relay, and thus is mainly used for a small device mounted on a board. Here, in view of the need to increase the cross-sectional area of ​​the movable terminal in conside...

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Abstract

An electromagnetic relay includes an electromagnet unit, an armature supported so as to be pivotable relative to a yoke by a hinge spring, a contact including a first contact and a second contact, which can switch, in accordance with pivoting of the armature, between a closed contact state and an open contact state, an elastic member which elastically deforms in accordance with pivoting of the armature, and applies a contact force between the first contact and the second contact in the closed contact state, and a magnet which generates an attractive force for retaining the armature in an opencontact position corresponding to the open contact state, wherein the armature is retained in the open contact position by a resultant force of a restoring force applied to the armature by the hinge springe, and the attractive force of the magnet.

Description

technical field [0001] The invention relates to an electromagnetic relay. Background technique [0002] In recent years, electromagnetic relays (hereinafter also referred to as relays) used in vehicles such as automobiles have been required to prevent malfunctions caused by vibrations and shocks applied to the relays during operation. In particular, in current holding relays that close the contacts by the operation of the electromagnet and maintain the closed state, compared with the contact closed state where the electromagnet operates, the resistance to vibration / shock in the case of the contact open state Poor performance. [0003] There is known a plunger-type electromagnetic relay which is provided to improve vibration / shock resistance in a contact-off state by using a permanent magnet (see Japanese Patent No. 5307779). In addition, a self-holding type (self-latching type) electromagnetic relay using a rotating armature and a permanent magnet is also known (see JP-A-2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H51/06H01H50/24H01H50/34H01H50/64
CPCH01H51/065H01H50/24H01H50/34H01H50/643H01H50/26H01H50/30H01H50/42H01H50/645H01H51/10H01H51/01
Inventor 岩本大荣
Owner FUJITSU COMPONENENT LTD