An electrical relay (2) includes an electromagnetic drive system for providing bi-directional drive. The electrical relay (2) includes a first a coil (212) and a second coil (213). A current is supplied to the coils (212) and (213) in opposite directions. The two coils (212) and (213) can be used to accelerate the armature in either direction in relation to the two contacts. This can be used to drive the armature to either one of the contacts and to accelerate and decelerate the armature during a single transit. In the latter regard, the armature can be accelerated and decelerated to shorten the transit time, reduce bounce, reduce wear on the contacts, and allow for different contact material options.

An electrical relay (2) includes an electromagnetic drive system for providing bi-directional drive. The electrical relay (2) includes a first a coil (212) and a second coil (213). A current is supplied to the coils (212) and (213) in opposite directions. The two coils (212) and (213) can be used to accelerate the armature in either direction in relation to the two contacts. This can be used to drive the armature to either one of the contacts and to accelerate and decelerate the armature during a single transit. In the latter regard, the armature can be accelerated and decelerated to shorten the transit time, reduce bounce, reduce wear on the contacts, and allow for different contact material options.

A contact switching device includes a pair of fixed contact terminals that include fixed contacts at one-side ends and are arranged side by side, a movable contactor that includes a pair of movable contacts at both ends, and are disposed so as to bridge between the pair of fixed contact terminals, and supported so as to be able to reciprocate towards the fixed contact terminals, each of the movable contacts facing each of the fixed contacts so as to be able to come into contact with and separate from each of the fixed contacts, and a pair of leading terminals configured to respectively fix fixed portions, provided at one-side ends, to other-side ends of the fixed contact terminals. An extension portion continuing to each of the fixed portions or at least one of the leading terminals is disposed so as to follow the movable contactor.

A contact switching device includes a pair of fixed contact terminals that include fixed contacts at one-side ends and are arranged side by side, a movable contactor that includes a pair of movable contacts at both ends, and are disposed so as to bridge between the pair of fixed contact terminals, and supported so as to be able to reciprocate towards the fixed contact terminals, each of the movable contacts facing each of the fixed contacts so as to be able to come into contact with and separate from each of the fixed contacts, and a pair of leading terminals configured to respectively fix fixed portions, provided at one-side ends, to other-side ends of the fixed contact terminals. An extension portion continuing to each of the fixed portions or at least one of the leading terminals is disposed so as to follow the movable contactor.

An electromagnetic relay includes a base, an electromagnet block mounted on an upper surface of the base, a movable iron piece configured to be rotatable based on excitation and non-excitation of the electromagnet block, a movable contact piece configured to be rotatable integrally with the movable iron piece, a movable contact fixed to a free end portion of the movable contact piece, and a fixed contact fixed to a fixed contact terminal, and disposed so as to be separable from and contacted with the movable contact along with rotation of the movable contact piece. A permanent magnet configured to induce an arc generated between the movable contact and the fixed contact in a predetermined direction is housed in a recessed portion formed on a lower surface of the base in a direction toward a side opposite to the movable contact as viewed from the fixed contact terminal.

According to one or more embodiments, when a predetermined time has passed after generation of an arc at least either between a movable contact and a fixed contact or between a movable contact and a fixed contact, an arc generated between the movable contact and the fixed contact is extended by a magnetic field generation unit to be longer than an arc generated between the movable contact and the fixed contact.

An electromagnetic relay includes an electromagnet device, an armature and a fixed terminal. By coil current through a coil, the electromagnet device generates first magnetic flux that forces the armature and the electromagnet device together or apart in a first end in a first direction of the armature. The armature is connected with a movable contact at a second end of the first direction and forces the movable contact and a fixed contact together or apart according to coil current. The fixed terminal is electrically connected with the fixed contact, and provided around the armature so as to cross the armature as seen from a second direction perpendicular to the first direction with the armature closing the fixed and movable contacts. Electric current through the fixed terminal generates a second magnetic flux in the armature, a direction of which is opposite to that of the first magnetic flux.

An electromagnetic relay includes an electromagnet device, an armature and a fixed terminal. By coil current through a coil, the electromagnet device generates first magnetic flux that forces the armature and the electromagnet device together or apart in a first end in a first direction of the armature. The armature is connected with a movable contact at a second end of the first direction and forces the movable contact and a fixed contact together or apart according to coil current. The fixed terminal is electrically connected with the fixed contact, and provided around the armature so as to cross the armature as seen from a second direction perpendicular to the first direction with the armature closing the fixed and movable contacts. Electric current through the fixed terminal generates a second magnetic flux in the armature, a direction of which is opposite to that of the first magnetic flux.

An electromagnetic relay includes a pair of fixed contacts, a pair of movable contacts that respectively face the pair of fixed contacts and are structured to respectively come into contact with and be separated from the pair of fixed contacts, a movable touch piece configured to electrically connect the pair of movable contacts, and a pair of permanent magnets that are arranged on a straight line passing through the pair of fixed contacts and the pair of movable contacts in a planar view seen along a contact-separation direction in which each of the movable contacts comes into contact with or is separated from each of the fixed contacts. The pair of permanent magnets face each other. The pair of permanent magnets are arranged so as to sandwich the pair of fixed contacts and the pair of movable contacts.

An electromagnetic relay includes a pair of fixed contacts, a pair of movable contacts that respectively face the pair of fixed contacts and are structured to respectively come into contact with and be separated from the pair of fixed contacts, a movable touch piece configured to electrically connect the pair of movable contacts, and a pair of permanent magnets that are arranged on a straight line passing through the pair of fixed contacts and the pair of movable contacts in a planar view seen along a contact-separation direction in which each of the movable contacts comes into contact with or is separated from each of the fixed contacts. The pair of permanent magnets face each other. The pair of permanent magnets are arranged so as to sandwich the pair of fixed contacts and the pair of movable contacts.