Provided is a relay having a structure for preventing deformation of a movable spring when it is caulked. A yoke of the relay has a protrusion for caulking inserted in the movable spring, and a bulge portion adjacent to the protrusion and having a height lower than a height of the protrusion. By providing the bulge portion to the yoke, the dimensional change in the caulking direction of the movable spring when the movable contact is caulked can be reduced.

A relay is described that comprises, for example, an electromagnet having a coil wounded on a winding frame and an iron core positioned in the winding frame, a movable terminal having an armature actuated by activation of the electromagnet, a movable spring attached to the armature and a movable contact attached to the movable spring, and a fixed contact opposed to the movable contact. The armature has a shape in which both ends of the armature in a direction perpendicular to an axial direction of the iron core are recessed relative to a center of the armature, and the armature does not exist in a thickness direction of a site which is cut to form the movable spring.

A relay is described that comprises, for example, an electromagnet having a coil wounded on a winding frame and an iron core positioned in the winding frame, a movable terminal having an armature actuated by activation of the electromagnet, a movable spring attached to the armature and a movable contact attached to the movable spring, and a fixed contact opposed to the movable contact. The armature has a shape in which both ends of the armature in a direction perpendicular to an axial direction of the iron core are recessed relative to a center of the armature, and the armature does not exist in a thickness direction of a site which is cut to form the movable spring.

Provided is a relay comprising an electromagnet having a coil wounded on a winding frame, a movable contact moved by activation of the electromagnet, a fixed contact opposed to the movable contact, and a flange formed on an axial end of the winding frame. The flange has an inswept tapered shape, and at least a part of an outer peripheral portion of the flange has a chamfered shape or a rounded shape.

A relay is described that comprises, for example, an electromagnet having a coil wounded on a winding frame and an iron core positioned in the winding frame, a movable terminal having an armature actuated by activation of the electromagnet, a movable spring attached to the armature and a movable contact attached to the movable spring, and a fixed contact opposed to the movable contact. The armature has a shape in which both ends of the armature in a direction perpendicular to an axial direction of the iron core are recessed relative to a center of the armature, and the armature does not exist in a thickness direction of a site which is cut to form the movable spring.

A relay is described that comprises, for example, an electromagnet having a coil wounded on a winding frame and an iron core positioned in the winding frame, a movable terminal having an armature actuated by activation of the electromagnet, a movable spring attached to the armature and a movable contact attached to the movable spring, and a fixed contact opposed to the movable contact. The armature has a shape in which both ends of the armature in a direction perpendicular to an axial direction of the iron core are recessed relative to a center of the armature, and the armature does not exist in a thickness direction of a site which is cut to form the movable spring.

An electromagnetic relay includes a fixed contact module including a fixed contact, a movable contact module including a movable contact disposed to face the fixed contact, an armature formed of a magnetic material and configured to move the movable contact module to bring the movable contact into and out of contact with the fixed contact, and an electromagnet configured to generate a magnetic field to move the armature. At least one of the fixed contact module and the movable contact module includes a joint at which different components are joined by riveting, and a film with a thermal conductivity higher than, the thermal conductivity of the fixed contact module and the movable contact module is formed on at least one of the fixed contact module and the movable contact module including the joint.

An electromagnetic relay includes a fixed contact module including a fixed contact, a movable contact module including a movable contact disposed to face the fixed contact, an armature formed of a magnetic material and configured to move the movable contact module to bring the movable contact into and out of contact with the fixed contact, and an electromagnet configured to generate a magnetic field to move the armature. At least one of the fixed contact module and the movable contact module includes a joint at which different components are joined by riveting, and a film with a thermal conductivity higher than, the thermal conductivity of the fixed contact module and the movable contact module is formed on at least one of the fixed contact module and the movable contact module including the joint.

An electromagnetic relay includes a magnetic attractive member magnetically attractable by an electromagnet unit, and a conductive resilient plate connected to the magnetic attractive member and having a movable portion fixed to the magnetic attractive member, and a movable contact being urged to contact with a first stationary contact. A flexible conductive member is connected to the conductive resilient plate. When the electromagnetic unit is energized and attracts the magnetically attractive member to move the conductive resilient plate therealong, the movable contact contacts with a second stationary contact. When the electromagnetic unit is de-energized, the movable contact contacts with the first stationary contact.

An electromagnetic relay includes a movable terminal including a movable contact, a fixed terminal including a fixed contact that faces the movable contact, first irons disposed on one of the fixed terminal and the movable terminal, and a second iron disposed on another one of the fixed terminal and the movable terminal such that the second iron at least partially overlaps both of the first irons.