Fujitsu Component Limited

Ntt Facilities, Inc.

Shizuoka University

Daiei Iwamoto

Takashi Yuba

Koichi Kiryu

SeungSeok Beak

Akio Nakamura

Keiichi Hirose

Masatoshi Noritake

Satoshi Takano

Kazuo Kubono

Yoichi Hasegawa

Hirofumi Saso

Takuji Murakoshi

Junya Sekikawa

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 open contact 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.

Electromagnetic relay

An electromagnetic relayincludes: a base; a pair of fixed contact terminalseach including a fixed contactand a first fulcrumfixed to the base; a movable contact springincluding a pair of movable pieces, each of the movable pieces including a movable contactcontacting and separating from the fixed contact; an armaturethat is coupled with the movable contact spring, and moves the movable contact spring by a rotary motion around a second fulcrum; an electromagnetic devicethat drives the armature; and a permanent magnetthat is arranged between the pair of fixed contact terminals and between the pair of movable pieces, and generates a magnetic field; wherein the first fulcrum and the second fulcrum are arranged mutually in opposite directions with respect to the movable contact or the fixed contact.

Electromagnetic relay and coil terminal

An electromagnetic relay including: an electromagnet; a movable spring having a movable contact; a first terminal to which one end of the movable spring is connected; a second terminal having a fixed contact opposite to the movable contact; an actuator that rotates by excitation of the electromagnet, rotates the movable spring, and causes the movable contact to come in contact with the fixed contact or to separate from the fixed contact; a nonmagnetic card to be attached to the actuator; a plurality of magnetic members that sandwich the movable contact and the fixed contact, and apply a magnetic flux to the movable contact and the fixed contact to extend an arc; and a permanent magnet attached between the magnetic members.

An electromagnetic relay includes a fixed contact part including a fixed terminal and a fixed contact connected to the fixed terminal, a movable contact part including a movable contact spring and a movable contact connected to the movable contact spring, an armature to which the movable contact part is connected, an electromagnet configured to move the armature, a magnet configured to stretch an arc generated between the fixed contact and the movable contact, and a first arc extinguishing plate and a second arc extinguishing plate configured to extinguish the stretched arc. The fixed contact and the movable contact are disposed between the first arc extinguishing plate and the second arc extinguishing plate. The magnet is disposed between a first pair of the fixed contact part and the movable contact part and a second pair of the fixed contact part and the movable contact part.

A switch includes a first switch () including a first fixed contact () and a first movable contact () and a second switch () including a second fixed contact () and a second movable contact (). The first fixed contact () and the first movable contact () come into contact and the second fixed contact () and the second movable contact () come into contact to turn on the switch. A magnet () is installed between the first switch () and the second switch ().

Switch

An electromagnetic relay includes: a base; a pair of fixed contact terminals, each including a fixed contact and a first fulcrum fixed to the base; a movable contact spring including a pair of movable pieces, each of the movable pieces including a movable contact contacting and separating from the fixed contact; an armature that is coupled with the movable contact spring, by a rotary motion around a second fulcrum; an electromagnetic device that drives the armature; and a permanent magnet arranged between the pair of fixed contact terminals and between the pair of movable pieces to generate a magnetic field. The first fulcrum and the second fulcrum are arranged mutually in opposite directions with respect to the movable contact or the fixed contact.

A connector includes a fixed contact, a movable contact that contacts with the fixed contact, a slide, a contact slide operated in association with a movement of the slide, a button that is pushed in accordance with the movement of the slide, the button including a lower portion, an upper portion, and a slant portion connecting the lower portion to an upper stage, and a card that moves the movable contact toward and away from the fixed contact in accordance with the movement of the button, wherein the contact slide contacts with the lower portion when the switch is in a turn-off state, contacts with the slant portion so as to push the button and cause the card to move the movable contact toward the fixed contact when the slide slides in one direction, and contacts with the upper portion when the switch is in a turn-on state.

Connector and switch

A switch device includes a first contacting portion including a first fixed contact, a first movable contact contactable to the first fixed contact, and a first break contact, the first movable contact being configured to selectively contact one of the first fixed contact and the first break contact; a second contacting portion including a second fixed contact, a second movable contact contactable to the second fixed contact, and a second break contact, the second movable contact being configured to selectively contact one of the second fixed contact and the second break contact; and a mechanical switch that mechanically moves the first movable contact and the second movable contact toward the first fixed contact and the second fixed contact, and toward the first break contact and the second break contact, respectively.

Switch device

An electromagnetic relay, includes: a first movable contact that comes in contact with a first fixed contact; a second movable contact that comes in contact with a second fixed contact; a first elastic body that biases the first movable contact; a second elastic body that biases the second movable contact; a pressing member that presses the first elastic body and contacts the first movable contact to the first fixed contact, presses the second elastic body and contacts the second movable contact to the second fixed contact; wherein the pressing member contacts the second movable contact to the second fixed contact before contacting the first movable contact to the first fixed contact.

A connector includes a connecting terminal, a fixed contact, a movable plate, a movable contact provided at an end of the movable plate, a card that includes an insulator and contacts the movable plate, a button that contacts the card, an opening spring connected to the button, and a sliding operation part that controls a contact between the fixed contact and the movable contact. When the sliding operation part is moved in a first direction, the movable contact is brought into contact with the fixed contact and the connector is turned on. When the sliding operation part is moved in a second direction opposite to the first direction, the movable contact is caused to move away from the fixed contact and the connector is turned off. The sliding operation part is provided on a surface that is different from a surface on which the connecting terminal is provided.

Connector and connector bar

A connector includes a terminal to be connected to a terminal of another connector, a fixed contact, a movable contact provided on one end of a movable plate, a card being in contact with the movable plate, a slide portion, a button that contacts with the card and is pushed down according to a movement of the slide portion, and a spring connected to the button and generates force in a direction of separating a contact between the fixed contact and the movable contact. One of the fixed contact and the movable contact is connected to the terminal. The button is pushed down and the card moves to move the movable plate to cause the movable contact to contact with the fixed contact when the slide portion moves in one direction, and the movable contact is separated from the fixed contact when the slide portion moves in another direction.

A connector includes a connecting terminal to be connected to another connecting terminal of another connector, a fixed contact, a movable contact provided at one end of a movable plate, a movable spring connected to the movable plate, and an operation part that moves according to an operation performed by an operator. The connecting terminal is connected to one of the fixed contact and the movable contact. The operation part applies a force to a part of the movable spring in a direction that is substantially parallel to a direction of a force applied to operate the operation part, and causes the movable contact to contact the fixed contact. The direction of the force applied to operate the operation part is substantially parallel to a direction in which the movable contact moves.

Connector

An electromagnetic relay includes: a yoke capable of changing a magnetic pole thereof by an electromagnet; an armature that is magnetized by a permanent magnet and contacts with or separates from the yoke in accordance with the magnetic pole of the yoke; a movable contact that contacts with a fixing contact; an elastic body that biases the movable contact; and a pressing member that presses the elastic body in accordance with a movement of the armature to cause the movable contact to at least contact with or separate from the fixing contact, wherein a cover fixing the permanent magnet and the armature, and the pressing member are integrally formed.

A switch device includes first and second contacting portions including first and fixed contacting portions and first and second movable contacting portions, respectively, the first fixed contacting portion and the second fixed contacting portion being configured to be electrically connected to one of a power source and an electronic device while the first movable contacting portion and the second movable contacting portion are configured to be electrically connected to the other of the power source and the electronic device; and first and second electric arc voltage suppression units configured to be electrically connected to the first and second fixed contacting portions and the first and second movable contacting portions for suppressing generation of electric arcs there between, respectively.

Switch device and connector

A switch device includes first and second contacting portions including first and second fixed contacting portions and first and second movable contacting portions configured to contact the first and second fixed contacting portions, respectively and provided to be adjacent from each other; and a magnet unit provided such that a first pole is positioned to face the first contacting portion and a second pole is positioned to face the second contacting portion to generate magnetic fields between the first fixed contacting portion and the first movable contacting portion and between the second fixed contacting portion and the second movable contacting portion, respectively.

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Tokyo, Japan

Daiei Iwamoto