Abstract: The electromagnetic relay includes a fixed terminal, a fixed contact connected to the fixed terminal, a movable contact piece moving in an opening direction and a closing direction with respect to the fixed terminal, a movable contact connected to the movable contact piece and being arranged to face the fixed contact, a coil generating an electromagnetic force to move the movable contact piece, and a drive circuit controlling a current to the coil. The drive circuit increases the current at a first increase rate in a first period that includes a period from a start time when the current starts to flow in the coil to before a contact time point at which the movable contact contacts the fixed contact. The drive circuit increases the current at a second increase rate larger than the first increase rate in the second period that includes a period after the contact time point.

Abstract: An electromagnetic relay includes a base, a first fixed terminal including a first fixed contact, a second fixed terminal including a second fixed contact, a movable contact piece, a movable member, and a return spring. The movable contact piece includes a pair of movable contacts configured to contact the first fixed contact and the second fixed contact. The movable member is movable with the movable contact piece in a contact direction and in a separation direction. The return spring is disposed between the base and the movable member and urges the movable member in the separation direction. The base includes a guide portion to guide movement of the movable member. The movable member includes a sliding portion slidable with respect to the guide portion. The return spring is disposed inside the guide portion. The guide portion is disposed in the contact direction with respect to the first fixed contact.

Abstract: A power relay having terminal tabs includes an on-off contact element having at least one movable contact and at least one stationary contact, an on-off drive element, at least two pairs of input/output terminal tabs, and at least one pair of control terminal tabs. The on-off drive element makes the movable contact come into contact with or separated from the stationary contact. The two pairs of input/output terminal tabs are electrically connected to at least one pair of input/output portions of the on-off contact element. The one pair of control terminal tabs is electrically connected to control terminal portions of the on/off drive element. Each of the input/output portions is electrically connected to two of the input/output terminal tabs, which are arranged side-by-side in their thickness direction and in vicinity with each other. The input/output terminal tabs and the control terminal tabs have a same thickness and width.

Abstract: A relay includes a housing, a fixed terminal, a screw receiving member, and at least one female screw member. The fixed terminal has a plate shape. The fixed terminal includes a fastening portion having at least one screw insertion hole. The fastening portion is exposed from the housing to an outside and is screwed to an external terminal. The screw receiving member overlaps with the fastening portion in a penetrating direction of the at least one screw insertion hole and is provided in proximity to the fastening portion. The at least one female screw member is provided integrally with or separately from the screw receiving member and is prevented from rotating by the screw receiving member.

Abstract: The electromagnetic relay includes a fixed terminal, a movable contact piece, a drive device, a contact case, at least one magnet, and at least one yoke. The fixed terminal includes a fixed contact. The movable contact piece includes a movable contact disposed to face the fixed contact. The drive device moves the movable contact piece in a direction in which the movable contact comes into contact with the fixed contact and in a direction in which the movable contact is separated from the fixed contact. The contact case is made of resin. The contact case houses the fixed contact and the movable contact piece. The at least one magnet is disposed around the contact case for generating a magnetic field inside the contact case. The at least one yoke is fixed to the contact case.

Abstract: An electromagnetic relay includes a fixed contact, a movable contact piece, a movable contact, a contact case, a drive device, and an elastic member. The movable contact is disposed to face the fixed contact. The movable contact piece is connected to the movable contact. The movable contact piece is configured to move in an opening direction and a closing direction. The contact case houses the fixed contact, the movable contact, and the movable contact piece. The drive device includes a coil. The coil generates an electromagnetic force that moves the movable contact piece. The elastic member is disposed between the drive device and the contact case. The elastic member seals between the drive device and the contact case.

Abstract: A relay includes a fixed terminal, a movable contact piece, a holder, a drive shaft, a contact case, a magnetic field generation member, and an inner member. The drive shaft is connected to the holder on a side close to the first end of the drive shaft. The magnetic field generation member is arranged around the contact case and is configured to generate a magnetic field in which an arc generated between the fixed contact and the movable contact extends in a lateral direction of the movable contact piece. The inner member includes a rotation preventing portion for restricting rotation of the holder around the drive shaft. The rotation preventing portion is arranged so as to contact the holder at a position closer to a second end of the drive shaft than the movable contact piece and closer to the drive shaft than the movable contact.

Abstract: A power relay having terminal tabs includes an on-off contact element having at least one movable contact and at least one stationary contact, an on-off drive element, at least two pairs of input/output terminal tabs, and at least one pair of control terminal tabs. The on-off drive element makes the movable contact come into contact with or separated from the stationary contact. The two pairs of input/output terminal tabs are electrically connected to at least one pair of input/output portions of the on-off contact element. The one pair of control terminal tabs is electrically connected to control terminal portions of the on/off drive element. Each of the input/output portions is electrically connected to two of the input/output terminal tabs, which are arranged side-by-side in their thickness direction and in vicinity with each other. The input/output terminal tabs and the control terminal tabs have a same thickness and width.

Abstract: A movable contact piece is movable in an open direction and a closed direction with respect to a first fixed terminal and a second fixed terminal. A first movable contact is connected to the movable contact piece. The first movable contact is disposed facing a first fixed contact. A second movable contact is connected to the movable contact piece. The second movable contact is disposed facing a second fixed contact. At least one of the first fixed contact or the first movable contact has a material property different from that of at least one of the second fixed contact or the second movable contact.

Abstract: 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.

Abstract: A first fixed terminal includes a first support portion and a first extending portion. The first support portion is located in a closing direction with respect to a movable contact piece. The first support portion supports a first fixed contact. The first support portion extends from the first fixed contact in a first lateral direction. The first lateral direction is one direction in a longitudinal direction of the movable contact piece. The first extending portion is connected to the first support portion. The first extending portion extends in the closing direction from the first support portion. The first extending portion is disposed apart from the movable contact piece in the first lateral direction.

Abstract: A housing includes a first mounting portion having a first through hole penetrating in a first direction and a second mounting portion having a second through hole penetrating in the first direction. The second mounting portion is disposed separately from the first mounting portion to one side in a second direction and is disposed closer to one side in a third direction than the first mounting portion. The first fixed terminal includes a first fastening portion that is exposed outside the housing closer to one side in the third direction than the first mounting portion. The second fixed terminal includes a second fastening portion that is exposed outside the housing closer to an opposite side in the third direction than the second mounting portion and that is disposed closer to the opposite side in the third direction than the first fastening portion.

Abstract: A pair of fixed terminals each include an internal terminal, an external terminal, and fixed contact. The internal terminal is located inside the housing. The external terminal includes an external connection portion and protrudes outward from a housing. The housing includes a side portion extending in a moving direction of a movable contact piece. The external terminal is arranged without protruding outwardly in a width direction of the pair of fixed terminals beyond both ends of the side portion in the width direction of the pair of fixed terminals at a height position of the external terminal in the moving direction. The external connection portion is formed to be larger than the internal terminal in at least one of the width direction or a thickness direction of the pair of fixed terminals.

Abstract: A relay includes a housing, a fixed terminal, a screw receiving member, and at least one female screw member. The fixed terminal has a plate shape. The fixed terminal includes a fastening portion having at least one screw insertion hole. The fastening portion is exposed from the housing to an outside and is screwed to an external terminal. The screw receiving member overlaps with the fastening portion in a penetrating direction of the at least one screw insertion hole and is provided in proximity to the fastening portion. The at least one female screw member is provided integrally with or separately from the screw receiving member and is prevented from rotating by the screw receiving member.

Abstract: A relay includes a fixed terminal, a movable contact piece, a holder, a drive shaft, a contact case, a magnetic field generation member, and an inner member. The drive shaft is connected to the holder on a side close to the first end of the drive shaft. The magnetic field generation member is arranged around the contact case and is configured to generate a magnetic field in which an arc generated between the fixed contact and the movable contact extends in a lateral direction of the movable contact piece. The inner member includes a rotation preventing portion for restricting rotation of the holder around the drive shaft. The rotation preventing portion is arranged so as to contact the holder at a position closer to a second end of the drive shaft than the movable contact piece and closer to the drive shaft than the movable contact.

Abstract: A movable contact piece is movable in an open direction and a closed direction with respect to a first fixed terminal and a second fixed terminal. A first movable contact is connected to the movable contact piece. The first movable contact is disposed facing a first fixed contact. A second movable contact is connected to the movable contact piece. The second movable contact is disposed facing a second fixed contact. At least one of the first fixed contact or the first movable contact has a material property different from that of at least one of the second fixed contact or the second movable contact.

Abstract: A housing includes a first mounting portion having a first through hole penetrating in a first direction and a second mounting portion having a second through hole penetrating in the first direction. The second mounting portion is disposed separately from the first mounting portion to one side in a second direction and is disposed closer to one side in a third direction than the first mounting portion. The first fixed terminal includes a first fastening portion that is exposed outside the housing closer to one side in the third direction than the first mounting portion. The second fixed terminal includes a second fastening portion that is exposed outside the housing closer to an opposite side in the third direction than the second mounting portion and that is disposed closer to the opposite side in the third direction than the first fastening portion.

Abstract: The electromagnetic relay includes a fixed terminal, a fixed contact connected to the fixed terminal, a movable contact piece moving in an opening direction and a closing direction with respect to the fixed terminal, a movable contact connected to the movable contact piece and being arranged to face the fixed contact, a coil generating an electromagnetic force to move the movable contact piece, and a drive circuit controlling a current to the coil. The drive circuit increases the current at a first increase rate in a first period that includes a period from a start time when the current starts to flow in the coil to before a contact time point at which the movable contact contacts the fixed contact. The drive circuit increases the current at a second increase rate larger than the first increase rate in the second period that includes a period after the contact time point.

Abstract: A pair of fixed terminals each include a first plate portion and a fixed contact arranged on the first plate portion. A movable contact piece includes a pair of movable contacts arranged to face the fixed contact. An accommodating portion includes a plurality of wall portions extending in a moving direction of the movable contact piece and an accommodating space that is surrounded by the plurality of wall portions and accommodates the fixed contact and the movable contact piece. The first plate portion protrudes from one of the plurality of wall portions to an outside of the accommodating space. At least one magnet is arranged to face a wall portion different from the wall portion from which the first plate portion protrudes among the plurality of wall portions.

Abstract: A first fixed terminal includes a first support portion and a first extending portion. The first support portion is located in a closing direction with respect to a movable contact piece. The first support portion supports a first fixed contact. The first support portion extends from the first fixed contact in a first lateral direction. The first lateral direction is one direction in a longitudinal direction of the movable contact piece. The first extending portion is connected to the first support portion. The first extending portion extends in the closing direction from the first support portion. The first extending portion is disposed apart from the movable contact piece in the first lateral direction.