A direct current relay is disclosed comprising a pin member and a support member. The support member allows a housing for receiving a movable contactor and an upper yoke for attenuating electromagnetic repulsive power to be coupled to each other. The pin member passes through and is coupled to the support member and the movable contactor to prevent the movable contactor from being unintendedly separated. The support member passes through and is coupled to the housing and the upper yoke, and then extends toward the radial outside by receiving applied pressure which faces the radial outside. The pin member passes through and is coupled to the support member, and then extends toward the radial outside when the pressure is released. Therefore, a separate fastening member for coupling the pin member and the support member to the housing, the upper yoke, the movable contactor, and the like is not required.

A direct current relay is disclosed. A movable contact part provided on a direct current relay, according to an embodiment of the present disclosure, comprises a movable contact and a pin member that is through-coupled to the movable contact. The movable contact can be supported by the pin member and simultaneously move on a straight line along the pin member. Therefore, even when a physical force is applied to the movable contact, the movable contact does not arbitrarily separate therefrom. The pin member is coupled to a support member insertion-coupled to a housing and an upper yoke. The pin member is formed to have a diameter larger than that of a hollow formed in the support member. The pin member can be insertion-coupled to the support member. Therefore, arbitrary separation of the movable contact can be prevented even without a separate fastening member.

Disclosed are a direct current relay and a manufacturing method therefor. A movable contact part provided in a direct current relay comprises a movable contact and a lower yoke positioned below the movable contact configured to attenuate an electromagnetic repulsive force generated by contact between the movable contact and a fixed contact. The movable contact is provided with a coupling protrusion portion that protrudes downward. The lower yoke is provided with a movable contact coupling portion into which the coupling protrusion portion is inserted. The coupling protrusion portion can receive pressure directed radially outward after being inserted into the movable contact coupling portion. The coupling protrusion portion is expanded radially outward by the pressure. Accordingly, the outer circumferential surface of the coupling protrusion portion can be inserted into and coupled to the inner circumferential surface of the lower yoke that forms the movable contact coupling portion.

An electrical switching device includes a connection section for fastening and contacting an electrical conductor. The connection section has a fastening element for fastening the electrical conductor, a current-carrying element spaced apart from the fastening element and including a contact point, and an electrically conductive contacting element extending from the fastening element to the contact point of the current-carrying element and into an inner section of the electrical switching device.

The present disclosure relates to a direct current relay and, more particularly, to a direct current relay including a mover assembly having improved support force with respect to a movable contactor. The direct current relay according to an embodiment of the present disclosure comprises a pair of fixed contactors and a movable contactor which is moved up and down by an actuator to come into contact with or be separated from the pair of fixed contactors, comprises a mover support disposed below the movable contactor and connected to the actuator by a shaft; a mover holder disposed above the movable contactor and fixed to the mover support; a contact pressure spring disposed between the movable contactor and the mover support to provide a contact pressure to the movable contactor; and a supporting pin installed to extend through the movable contactor and the mover holder.

An electromagnetic relay includes a first movable contact piece, a first movable contact, a second movable contact, a moving member, a coil, and a movable iron core. The moving member holds the first movable contact piece. The moving member is made of a resin having electrical insulation. The moving member includes a first member and a second member. The first member is connected to a movable iron core. The second member is a separate body from the first member. The second member is connected to the first member by snap fitting. The first member includes a convex portion. The convex portion projects toward the second member in a moving direction of the moving member. The second member includes an inspection hole. The inspection hole faces the convex portion in the moving direction and extends in the moving direction.

In an embodiment a contact arrangement includes a retaining element with a cylindrical hole having a cylinder axis configured to arrange the retaining element on a shaft and a contact bridge attached to the retaining element, wherein the contact bridge has a top side with at least one contact region and a bottom side opposite the top side, and wherein, via a rotation around the cylinder axis, the contact bridge is transferable to a locked state on the retaining element in a direction along the cylinder axis.

An electromagnetic relay includes a base, a first terminal, a fixing member, and a first adhesive. The base includes a first hole. The base is made of a thermosetting resin. The first terminal extends through the first hole. The fixing member is a separate body from the base. The fixing member has higher elasticity than the thermosetting resin. The fixing member fixes the first terminal to the base. The fixing member includes a first support wall and a first recess. The first support wall is disposed between an inner surface of the first hole and the first terminal. The first support wall extends upward along the first terminal. The first recess is disposed on an upper surface of the first support wall and faces the first terminal. The first adhesive is filled in the first recess. The first adhesive adheres the first terminal and the first support wall.

An electromagnetic relay includes a first movable contact piece, a moving member, a coil, and a movable iron core. The moving member holds the first movable contact piece. The movable iron core is connected to the moving member and is configured to move by a magnetic force generated by the coil. The moving member is made of resin having electrical insulation. The moving member includes a first member and a second member. The second member is connected to the first member by snap fitting. The first member includes a first protrusion. The second member includes a second main body, a first locking portion, and a first arm. The first locking portion locks to the first protrusion. The first arm connects the second main body and the first locking portion. A thickness of the first arm is smaller than a thickness of the first locking portion.

An electromagnetic relay includes a moving member, a yoke, a guide member, and a movable iron core. The yoke includes a plate portion and a yoke hole. The guide member is disposed in the yoke hole. The movable iron core is connected to the moving member.

The movable iron core includes a tubular portion. The tubular portion includes a first end surface and a second end surface. The tubular portion is disposed in the guide member. The plate portion includes a first surface and a second surface. In a case where the moving member is located at the closed position, the first end surface is located within a range from a first position to a second position. The first position is a position corresponding to the first surface. The second position is located at a center of the first surface and the second surface.