A relay includes a first fixed terminal, a first fixed contact, a second fixed terminal, a second fixed contact, a first movable contact piece, a first movable contact, a second movable contact, an insulating member, and a drive device. The first fixed contact is connected to the first fixed terminal. The second fixed contact is connected to the second fixed terminal. The first movable contact and the second movable contact are connected to the first movable contact piece. The insulating member is connected to the first movable contact piece. The drive device includes a coil and a movable iron core. The movable iron core is connected to the insulating member. The drive device moves the movable iron core by a magnetic force generated from the coil to move the movable contact piece. The first movable contact piece and the movable iron core are electrically insulated by the insulating member.

A relay includes a first fixed terminal, a first fixed contact, a second fixed terminal, a second fixed contact, a first movable contact piece, a first movable contact, a second movable contact, an insulating member, and a drive device. The first fixed contact is connected to the first fixed terminal. The second fixed contact is connected to the second fixed terminal. The first movable contact and the second movable contact are connected to the first movable contact piece. The insulating member is connected to the first movable contact piece. The drive device includes a coil and a movable iron core. The movable iron core is connected to the insulating member. The drive device moves the movable iron core by a magnetic force generated from the coil to move the movable contact piece. The first movable contact piece and the movable iron core are electrically insulated by the insulating member.

A relay includes first and second fixed contacts, first and second fixed terminals, first and second movable contacts, a movable contact piece, a drive shaft, a stopper, and a housing. The drive shaft supports the movable contact piece to be movable relative to the drive shaft. The stopper is connected to the drive shaft above the movable contact piece. The stopper restricts an upward movement of the movable contact piece with respect to the drive shaft. The drive shaft is configured to move to an open position and a closed position. The closed position is located above the open position. The first fixed terminal includes a first uppermost portion in the housing. The second fixed terminal includes a second uppermost portion in the housing. In a state where the drive shaft is at the closed position, the stopper is located below the first uppermost portion and the second uppermost portion.

A first yoke is arranged in a contact direction with respect to a movable contact piece. A second yoke is arranged in an opening direction with respect to the movable contact piece. The first yoke and the second yoke are configured to generate a magnetic force that attracts the first yoke and the second yoke to each other when the movable contact contacts the fixed contact and is energized. The first yoke and the second yoke are arranged not to contact each other so that the movable contact piece can contact the fixed terminal in a state where the movable contact and the fixed contact are lost.

A high voltage relay resistant to instantaneous high-current impact is disclosed. The high voltage relay includes an electromagnet system, a control system, a contact system, and a base support. In various embodiments, an electromagnetic force generated by the contact system is used to resolve a problem of contact separation caused by an electric repulsion force generated by an instantaneous high-current.

A high voltage relay resistant to instantaneous high-current impact is disclosed. The high voltage relay includes an electromagnet system, a control system, a contact system, and a base support. In various embodiments, an electromagnetic force generated by the contact system is used to resolve a problem of contact separation caused by an electric repulsion force generated by an instantaneous high-current.

A DC high-voltage relay including at least one contact pair including a movable contact and a fixed contact, having a contact force and/or opening force of 100 gf or more, the DC high-voltage relay of 48 V or more. The movable contact and/or the fixed contact includes Ag oxide-based contact material. Metal components in the contact material includes at least one metal M essentially containing Sn, and a balance including Ag and inevitable impurity metals. The content of the metal M is 0.2% by mass or more and 8% by mass or less based on the total mass of all metal components in the contact material. The contact material has a material structure in which one or more oxides of the metal M are dispersed in a matrix including Ag or a Ag alloy. As metal M, In, Bi, Ni and Te can be added.

A DC high-voltage relay including at least one contact pair including a movable contact and a fixed contact, having a contact force and/or opening force of 100 gf or more, the DC high-voltage relay of 48 V or more. The movable contact and/or the fixed contact includes Ag oxide-based contact material. Metal components in the contact material includes at least one metal M essentially containing Sn, and a balance including Ag and inevitable impurity metals. The content of the metal M is 0.2% by mass or more and 8% by mass or less based on the total mass of all metal components in the contact material. The contact material has a material structure in which one or more oxides of the metal M are dispersed in a matrix including Ag or a Ag alloy. As metal M, In, Bi, Ni and Te can be added.

The contact switching device includes a first terminal, a first contact, a second terminal, and a base. The first contact is attached to the first terminal. The base includes a first attachment portion, a second attachment portion, and a groove portion. The first terminal is attached to the first attachment portion. The second terminal is attached to the second attachment portion. The groove portion is arranged between the first attachment portion and the second attachment portion. The groove portion has a shape in which the inside is larger than the entrance.

The contact switching device includes a first terminal, a first contact, a second terminal, and a base. The first contact is attached to the first terminal. The base includes a first attachment portion, a second attachment portion, and a groove portion. The first terminal is attached to the first attachment portion. The second terminal is attached to the second attachment portion. The groove portion is arranged between the first attachment portion and the second attachment portion. The groove portion has a shape in which the inside is larger than the entrance.