Abstract: A grid interconnection system for a power grid includes: a storage battery; a power conversion device that converts power from the storage battery into AC; and an interconnection control device that supplies power from a commercial power supply to a load and supplies power from the power conversion device to the load when the commercial power supply fails. When the commercial power supply is restored, the interconnection control device starts supply of power from the commercial power supply to the load, and stops supply of power from the power conversion device to the load after the supply of power from the commercial power supply to the load is started.

Abstract: A connector includes a base member and a contact connected to a connection object, a first surface of the base member making contact with a bottom surface of a sheet-like conductive member, the contact being fixed to the base member by a deformed portion of the projection in a state where a root portion of the projection is accommodated in a projection accommodating portion with the sheet-like conductive member being sandwiched therebetween, an inner peripheral surface of the projection accommodating portion making contact with a flexible conductor of the sheet-like conductive member, whereby the connection object is electrically connected to the flexible conductor via the contact.

Abstract: Provided is a connector including a surrounding wall with an improved strength against an outward force. The connector of the invention includes a contact that contacts a counter contact of a counter connector, a housing to which the contact is fitted and attached, and a surrounding wall disposed to surround the housing. A gap is provided between the housing and the surrounding wall, and in a connector fitting state, the surrounding wall is in contact with a counter surrounding wall of the counter connector that has entered the gap. The surrounding wall is provided with a protrusion portion protruding outward in a second direction intersecting a first direction, and an end portion on a board side of the protrusion portion in the first direction is in contact with a board.

Abstract: A connector is mounted on an input-output board. The connector is interposed between the input-output board and a CPU board, and thereby a plurality of pads of the input-output board and a plurality of pads of the CPU board are respectively electrically connected. The connector includes a rectangular flat-plate housing having a first positioning hole and a second positioning hole, and at least one contact row held on the housing. The first positioning hole is formed at a first housing corner part of the housing. The second positioning hole is formed at a fourth housing corner part, which is at a diagonal position with respect to the first housing corner part, of the housing.

Abstract: A cantilever spring is positioned in a slit in a shell, and has a free end and a fixed end fixed to the shell. The cantilever spring extends in a height direction of the shell. The fixed end of the cantilever spring is positioned near a part that is attachable to a board, and the free end of the cantilever spring is apart from that part.

Abstract: A composite connector that contributes to an improvement of workability for mating connectors with each other while preventing or reducing an increase in manufacturing cost is provided. A composite connector includes a first module including a first housing in which a first connector is exposed, and a second housing rotatable about the first housing, the second housing including a second connector, and a second module including a third connector, and a third housing including a fourth connector, the third connector being configured to be mated with and connected to the first connector. The composite connector is configured so that the second and fourth connectors are mated with each other in a state in which one of a projection and a recess that is formed in the second housing is mated with the other of the projection and the recess that is formed in the third housing.

Abstract: A connector includes a rectangular flat-plate housing including a first positioning hole and a second positioning hole, and a contact row and a contact row held on the housing. The housing includes a first pitch side surface and a second pitch side surface on an opposite side of the first pitch side surface. The contact row and the contact row extend from the first pitch side surface to the second pitch side surface. The first positioning hole is disposed between the first pitch side surface and the contact row, and the second positioning hole is disposed between the first pitch side surface and the contact row.

Abstract: A connector includes a flat-plate housing made of insulating resin and including a first positioning hole and a second positioning hole, a plurality of contacts held on the housing, and a first hold-down and a second hold-down made of metal and disposed to correspond to a first positioning hole and a second positioning hole, respectively. The housing includes a CPU board opposed surface to be opposed to a CPU board. The first hold-down includes a reinforcing plate part to cover the CPU board opposed surface around the corresponding first positioning hole. The second hold-down includes a reinforcing plate part to cover the CPU board opposed surface around the corresponding second positioning hole.

Abstract: There is provided a circuit board assembly constructed by stacking a first circuit board having a first contact portion and a second circuit board having a second contact portion to allow the first and second contact portions to contact each other, which is bendable along a first direction. The first circuit board has a first hole that is formed within a range in which a pair of first projection pieces are present in a second direction perpendicular to the first direction, at least part of the first hole being situated between the pair of first projection pieces in the first direction, and the second circuit board has a second hole that is formed within a range in which the pair of second projection pieces are present in the second direction, at least part of the second hole being situated between the pair of second projection pieces in the first direction.

Abstract: A connector includes a rectangular flat-plate housing including a first positioning hole and a second positioning hole, and a contact row and a contact row held on the housing. The housing includes a first pitch side surface and a second pitch side surface on an opposite side of the first pitch side surface. The contact row and the contact row extend from the first pitch side surface to the second pitch side surface. The first positioning hole is disposed between the first pitch side surface and the contact row, and the second positioning hole is disposed between the first pitch side surface and the contact row.

Abstract: A connector includes a flat-plate housing made of insulating resin and a contact held on a housing by press-fitting. The housing includes a press-fitting space and a solder connection checking hole. The contact includes a press-fit part to be press-fit into the press-fitting space, and a soldering part that extends from the press-fit part and is connected by soldering to a pad of an input-output board. The solder connection checking hole is formed to penetrate the housing in the vertical direction and allow a solder fillet, which is formed when the soldering part is soldered to the pad of the input-output board, to be checked through the solder connection checking hole. The housing includes a separating wall that separates the press-fitting space from the solder connection checking hole.

Abstract: A connector includes a flat-plate housing made of insulating resin and including a first positioning hole and a second positioning hole, a plurality of contacts held on the housing, and a first hold-down and a second hold-down made of metal and disposed to correspond to a first positioning hole and a second positioning hole, respectively. The housing includes a CPU board opposed surface to be opposed to a CPU board. The first hold-down includes a reinforcing plate part to cover the CPU board opposed surface around the corresponding first positioning hole. The second hold-down includes a reinforcing plate part to cover the CPU board opposed surface around the corresponding second positioning hole.

Abstract: A connector includes a pushing member having a projection, a support member disposed to contact a lateral surface of the projection, and a contact made of a conductive material and having a support member facing portion facing the support member, a part of the flexible conductor being disposed between the support member and the support member facing portion of the contact, the lateral surface of the projection pressing the part of the flexible conductor against the support member facing portion of the contact via the support member, whereby the contact is electrically connected to the flexible conductor.

Abstract: A connector includes a flat-plate housing made of insulating resin and a contact held on a housing by press-fitting. The housing includes a press-fitting space and a solder connection checking hole. The contact includes a press-fit part to be press-fit into the press-fitting space, and a soldering part that extends from the press-fit part and is connected by soldering to a pad of an input-output board. The solder connection checking hole is formed to penetrate the housing in the vertical direction and allow a solder fillet, which is formed when the soldering part is soldered to the pad of the input-output board, to be checked through the solder connection checking hole. The housing includes a separating wall that separates the press-fitting space from the solder connection checking hole.

Abstract: A composite connector that contributes to an improvement of workability for mating connectors with each other while preventing or reducing an increase in manufacturing cost is provided. A composite connector includes a first module including a first housing in which a first connector is exposed, and a second housing rotatable about the first housing, the second housing including a second connector, and a second module including a third connector, and a third housing including a fourth connector, the third connector being configured to be mated with and connected to the first connector. The composite connector is configured so that the second and fourth connectors are mated with each other in a state in which one of a projection and a recess that is formed in the second housing is mated with the other of the projection and the recess that is formed in the third housing.

Abstract: A connector includes a rectangular flat-plate housing including a first positioning hole and a second positioning hole, and a contact row and a contact row held on the housing. The housing includes a first pitch side surface and a second pitch side surface on an opposite side of the first pitch side surface. The contact row and the contact row extend from the first pitch side surface to the second pitch side surface. The first positioning hole is disposed between the first pitch side surface and the contact row, and the second positioning hole is disposed between the first pitch side surface and the contact row.

Abstract: A connector includes a flat-plate housing made of insulating resin and a contact held on a housing by press-fitting. The housing includes a press-fitting space and a solder connection checking hole. The contact includes a press-fit part to be press-fit into the press-fitting space, and a soldering part that extends from the press-fit part and is connected by soldering to a pad of an input-output board. The solder connection checking hole is formed to penetrate the housing in the vertical direction and allow a solder fillet, which is formed when the soldering part is soldered to the pad of the input-output board, to be checked through the solder connection checking hole. The housing includes a separating wall that separates the press-fitting space from the solder connection checking hole.

Abstract: A connector includes a pushing member having a projection, and a contact having a projection accommodating portion of a recess shape, the projection includes a holding portion extending across the projection in a direction orthogonal to a projecting direction of the projection and holding a flexible conductor, when the projection is inserted into the projection accommodating portion of the contact together with the flexible conductor with a middle part of the flexible conductor being held by the holding portion of the projection, parts of the flexible conductor that are situated on opposite sides of and are adjoining the middle part of the flexible conductor are sandwiched between a lateral surface of the projection and an inner surface of the projection accommodating portion to contact the inner surface of the projection accommodating portion, whereby the contact is electrically connected to the flexible conductor.

Abstract: A connector includes a first insulator, a second insulator and a contact connected to the flexible conductor, the flexible conductor having an internal conductive portion and an external conductive portion, a sheet-like member being sandwiched between the circumferential edges of the first insulator and the second insulator while overlapping the flexible conductor to attach the connector to the sheet-like member, the first insulator positioned on a side of the flexible conductor in a position where the sheet-like member and the flexible conductor overlap each other having a cutout formed to correspond to the flexible conductor, a part of the external conductive portion adjacent to the internal conductive portion of the flexible conductor entering the cutout when the sheet-like member is bent at an edge of the first insulator together with the flexible conductor.

Abstract: A connector includes a flat-plate housing made of insulating resin and including a first positioning hole and a second positioning hole, a plurality of contacts held on the housing, and a first hold-down and a second hold-down made of metal and disposed to correspond to a first positioning hole and a second positioning hole, respectively. The housing includes a CPU board opposed surface to be opposed to a CPU board. The first hold-down includes a reinforcing plate part to cover the CPU board opposed surface around the corresponding first positioning hole. The second hold-down includes a reinforcing plate part to cover the CPU board opposed surface around the corresponding second positioning hole.