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US 2018/0247782 A1Published application
Electromagnetic relay
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsAtsushi NAKAHATA, Yoshimasa KATO, Machiko NISHIYAMA, Hironori HOUNOKI, Izumi FUJITA
Life of this patent
Estimating the term…
Abstract
An electromagnetic relay includes an armature, and a movable body configured to move in association with a swing of the armature. The armature includes a support portion opposed to a leg portion of an iron core, a magnetic pole opposed to another leg portion of the iron core, and an arm portion extending to connect the support portion and the magnetic pole. A movable body is attached to the arm portion and provided with a pressure projection for moving movable contacts. The pressure projection is located on a segment connecting the center of gravity of the support portion and the center of gravity of the magnetic pole.
Claims23
An electromagnetic relay comprising:
- a contact block including a fixed contact portion provided with a fixed contact, and a movable contact portion provided with a movable contact brought into contact with and separated from the fixed contact;
- and
- a drive block configured to bring the movable contact into contact with the fixed contact and separate the movable contact from the fixed contact,
- the drive block including:
- an iron core including a body portion extending in one direction, and leg portions extending downward from both ends in an extending direction of the body portion in a state in which the extending direction of the body portion conforms to a horizontal direction;
- a coil frame to which the iron core is fixed;
- a coil wound on the body portion of the iron core with the coil frame interposed therebetween;
- an armature arranged across the iron core from one leg portion to another leg portion and configured to swing on one end serving as an axis;
- and
- a movable body configured to move in association with a swing of the armature,
- the armature including:
- a support portion opposed to the one leg portion of the iron core to serve as the axis;
- a magnetic pole opposed to the other leg portion of the iron core;
- and
- an arm portion extending to connect the support portion and the magnetic pole and configured to cause the magnetic pole to swing on the support portion so as to come close to and separate from the other leg portion of the iron core,
- the movable body being attached to the arm portion and provided with a pressure projection for moving the movable contact, the pressure projection being located on a segment connecting a center of gravity of the support portion and a center of gravity of the magnetic pole.
13 more elements
An electromagnetic relay comprising:
- a contact block including a fixed contact portion provided with a fixed contact, and a movable contact portion provided with a movable contact brought into contact with and separated from the fixed contact;
- and
- a drive block configured to bring the movable contact into contact with the fixed contact and separate the movable contact from the fixed contact,
- the drive block including:
- an iron core including a body portion extending in one direction, and leg portions extending downward from both ends in an extending direction of the body portion in a state in which the extending direction of the body portion conforms to a horizontal direction;
- a coil frame to which the iron core is fixed;
- a coil wound on the body portion of the iron core with the coil frame interposed therebetween;
- an armature arranged across the iron core from one leg portion to another leg portion and configured to swing on one end serving as an axis;
- and
- a movable body configured to move in association with a swing of the armature,
- the armature including:
- a support portion opposed to the one leg portion of the iron core to serve as the axis;
- a magnetic pole opposed to the other leg portion of the iron core;
- and
- an arm portion extending to connect the support portion and the magnetic pole and configured to cause the magnetic pole to swing on the support portion so as to come close to and separate from the other leg portion of the iron core,
- the movable body being attached to the arm portion and provided with a pressure projection for moving the movable contact, the pressure projection being located on a segment connecting a center of magnetic force of the support portion and a center of magnetic force of the magnetic pole.
13 more elements
An electromagnetic relay comprising:
- a contact block including a fixed contact portion provided with a fixed contact, and a movable contact portion provided with a movable contact brought into contact with and separated from the fixed contact;
- and
- a drive block configured to bring the movable contact into contact with the fixed contact and separate the movable contact from the fixed contact,
- the drive block including:
- an iron core including a body portion extending in one direction, and leg portions extending downward from both ends in an extending direction of the body portion in a state in which the extending direction of the body portion conforms to a horizontal direction;
- a coil frame to which the iron core is fixed;
- a coil wound on the body portion of the iron core with the coil frame interposed therebetween;
- an armature arranged across the iron core from one leg portion to another leg portion and configured to swing on one end serving as an axis;
- and
- a movable body configured to move in association with a swing of the armature,
- the armature including:
- a support portion opposed to the one leg portion of the iron core to serve as the axis;
- a magnetic pole opposed to the other leg portion of the iron core;
- and
- an arm portion extending to connect the support portion and the magnetic pole and configured to cause the magnetic pole to swing on the support portion so as to come close to and separate from the other leg portion of the iron core,
- the movable body being attached to the arm portion and provided with a pressure projection for moving the movable contact, the pressure projection being located at a position shifted from a center of the armature in the horizontal direction toward the magnetic pole in a side view in a state in which an extending direction of the arm portion conforms to the horizontal direction and a width direction of the arm portion conforms to a vertical direction.
13 more elements
An electromagnetic relay comprising:
- a contact block including a fixed contact and a movable contact brought into contact with and separated from the fixed contact;
- a drive block configured to bring the movable contact into contact with the fixed contact and separate the movable contact from the fixed contact;
- and
- a base to which the contact block and the drive block are fixed,
- the drive block including:
- an iron core including a body portion extending in one direction, and leg portions extending downward from both ends in an extending direction of the body portion in a state in which the extending direction of the body portion conforms to a horizontal direction;
- a coil frame to which the iron core is fixed;
- a coil wound on the body portion of the iron core with the coil frame interposed therebetween;
- and
- an armature arranged across the iron core from one leg portion to another leg portion and configured to swing on one end serving as an axis,
- the armature including:
- a support portion opposed to the one leg portion of the iron core to serve as the axis;
- a magnetic pole opposed to the other leg portion of the iron core;
- and
- an arm portion extending to connect the support portion and the magnetic pole and configured to cause the magnetic pole to swing on the support portion so as to come close to and separate from the other leg portion of the iron core,
- the support portion being positioned by the one leg portion of the iron core and a positioning portion provided in at least one of the coil frame and the base.
13 more elements
Dependencies are inferred from the claim text.