Abstract: An object of the present disclosure is to reduce noise caused by a return current. Connector assembly includes first connector and second connector to which first connector is fitted from above. First connector includes first shield and first specific terminal. Second connector includes second specific terminal. First shield has first opposed portion facing first specific terminal on second axis in the fitted state. The first specific terminal includes first terminal proximity portion in which a distance to first opposed portion on second axis is smaller than a distance between the second specific terminal and the first opposed portion on second axis in the fitted state. A projected area obtained by projecting the first wide face onto virtual plane orthogonal to second axis is greater than a projected area obtained by projecting the first narrow face onto the virtual plane.

Abstract: An object of the present disclosure is to improve a shielding property against the electromagnetic waves. Connector assembly includes first connector and second connector to which first connector is fitted from above. First connector includes first shield. Second connector includes second shield that comes into contact with first shield in a fitted state in which first connector and second connector are fitted. First shield includes first curved portion connected to a lower end of first side wall extending along the vertical axis and curved in a direction along the horizontal axis, and protrusion protruding along the horizontal axis. Second shield has second side wall extending in the vertical axis. In the fitted state, the lower end of second side wall is positioned above protrusion, and second side wall is in contact with first side wall above protrusion.

Abstract: A connector includes a housing, an outer shield including a tubular portion, and a terminal surrounded by the tubular portion of the outer shield. The connector is connected to a mating connector by moving toward the mating connector in a predetermined direction relatively with respect to the mating connector. A first end of the tubular portion of the outer shield is located in the predetermined direction in the tubular portion. The tubular portion of the outer shield has an inner circumferential surface facing a hollow space, an outer circumferential surface opposite to the inner circumferential surface, and a distal end surface provided at the first end. At least one of the distal end surface, the outer circumferential surface, and the inner circumferential surface is seamless over an entire circumference of the tubular portion surrounding the hollow space along a circumferential direction of the tubular portion.

Abstract: A connector includes a housing, an outer shield including a tubular portion, and a terminal surrounded by the tubular portion of the outer shield. The connector is connected to a mating connector by moving toward the mating connector in a predetermined direction relatively with respect to the mating connector. A first end of the tubular portion of the outer shield is located in the predetermined direction in the tubular portion. The tubular portion of the outer shield has an inner circumferential surface facing a hollow space, an outer circumferential surface opposite to the inner circumferential surface, and a distal end surface provided at the first end. At least one of the distal end surface, the outer circumferential surface, and the inner circumferential surface is seamless over an entire circumference of the tubular portion surrounding the hollow space along a circumferential direction of the tubular portion.

Abstract: A connector includes an outer shield, a terminal surrounded by the outer shield, a housing fixed to the outer shield and holding the terminal; and an inner shield surrounded by the outer shield. The outer shield, the inner shield, and two virtual paths that connect the two tip regions of the inner shield to the outer shield by shortest distances, respectively, constitute plural electrically-closed loops surrounding the terminal. The electrically-closed loops include one or more particular electrically-closed loops. Each of the one or more particular electrically-closed loops does not surround any electrically-closed loop among the plurality of electrically-closed loops other than the each of the one or more particular electrically-closed loops. A longest loop length of the one or more loop lengths of the one or more particular electrically-closed loops is shorter than a wavelength of a maximum frequency of a transmission signal flowing through the terminal.

Abstract: A connector includes plural terminals, a housing holding the terminals, and an inner shield. The connector is configured to be connected to a mating connector by moving toward the mating connector in a first direction relatively with respect to the mating connector. The terminals include two terminals arranged on both sides of the inner shield in a second direction perpendicular to the first direction. The inner shield includes a base extending in a third direction perpendicular to the first direction and the second direction, and an extension protruding from the base. The housing includes a shield holder holding the extension. This connector reduces noise propagation between the terminals.

Abstract: A connector includes plural terminals, a housing holding the terminals, and an inner shield. The connector is configured to be connected to a mating connector by moving toward the mating connector in a first direction relatively with respect to the mating connector. The terminals include two terminals arranged on both sides of the inner shield in a second direction perpendicular to the first direction. The inner shield includes a base extending in a third direction perpendicular to the first direction and the second direction, and an extension protruding from the base. The housing includes a shield holder holding the extension. This connector reduces noise propagation between the terminals.

Abstract: A connector includes a housing, an outer shield including a tubular portion, and a terminal surrounded by the tubular portion of the outer shield. The connector is connected to a mating connector by moving toward the mating connector in a predetermined direction relatively with respect to the mating connector. A first end of the tubular portion of the outer shield is located in the predetermined direction in the tubular portion. The tubular portion of the outer shield has an inner circumferential surface facing a hollow space, an outer circumferential surface opposite to the inner circumferential surface, and a distal end surface provided at the first end. At least one of the distal end surface, the outer circumferential surface, and the inner circumferential surface is seamless over an entire circumference of the tubular portion surrounding the hollow space along a circumferential direction of the tubular portion.

Abstract: A connector includes an outer shield, a terminal surrounded by the outer shield, a housing fixed to the outer shield and holding the terminal; and an inner shield surrounded by the outer shield. The outer shield, the inner shield, and two virtual paths that connect the two tip regions of the inner shield to the outer shield by shortest distances, respectively, constitute plural electrically-closed loops surrounding the terminal. The electrically-closed loops include one or more particular electrically-closed loops. Each of the one or more particular electrically-closed loops does not surround any electrically-closed loop among the plurality of electrically-closed loops other than the each of the one or more particular electrically-closed loops. A longest loop length of the one or more loop lengths of the one or more particular electrically-closed loops is shorter than a wavelength of a maximum frequency of a transmission signal flowing through the terminal.

Abstract: A connector includes a housing, an outer shield fixed to the housing and including a tubular portion, and a terminal held by the housing and surrounded by the tubular portion of the outer shield. The tubular portion has a first end and a second end opposite to each other. The first end and the second end of the tubular portion open. The tubular portion surrounds a hollow space. The connector is configured to be connected to a mating connector by moving toward the mating connector in a predetermined direction relatively with respect to the mating connector. The first end of the tubular portion of the outer shield is located in the predetermined direction in the tubular portion. The tubular portion of the outer shield has an inner circumferential surface facing the hollow space, an outer circumferential surface opposite to the inner circumferential surface, and a distal end surface provided at the first end.

Abstract: A connector includes an outer shield, a terminal surrounded by the outer shield, a housing fixed to the outer shield and holding the terminal; and an inner shield surrounded by the outer shield. The outer shield, the inner shield, and two virtual paths that connect the two tip regions of the inner shield to the outer shield by shortest distances, respectively, constitute plural electrically-closed loops surrounding the terminal. The electrically-closed loops include one or more particular electrically-closed loops. Each of the one or more particular electrically-closed loops does not surround any electrically-closed loop among the plurality of electrically-closed loops other than the each of the one or more particular electrically-closed loops. A longest loop length of the one or more loop lengths of the one or more particular electrically-closed loops is shorter than a wavelength of a maximum frequency of a transmission signal flowing through the terminal.

Abstract: A connector includes plural terminals, a housing holding the terminals, and an inner shield. The connector is configured to be connected to a mating connector by moving toward the mating connector in a first direction relatively with respect to the mating connector. The terminals include two terminals arranged on both sides of the inner shield in a second direction perpendicular to the first direction. The inner shield includes a base extending in a third direction perpendicular to the first direction and the second direction, and an extension protruding from the base. The housing includes a shield holder holding the extension. This connector reduces noise propagation between the terminals.

Abstract: A connector includes an outer shield, a terminal surrounded by the outer shield, a housing fixed to the outer shield and holding the terminal; and an inner shield surrounded by the outer shield. The outer shield, the inner shield, and two virtual paths that connect the two tip regions of the inner shield to the outer shield by shortest distances, respectively, constitute plural electrically-closed loops surrounding the terminal. The electrically-closed loops include one or more particular electrically-closed loops. Each of the one or more particular electrically-closed loops does not surround any electrically-closed loop among the plurality of electrically-closed loops other than the each of the one or more particular electrically-closed loops. A longest loop length of the one or more loop lengths of the one or more particular electrically-closed loops is shorter than a wavelength of a maximum frequency of a transmission signal flowing through the terminal.

Abstract: A connector includes a housing, an outer shield fixed to the housing and including a tubular portion, and a terminal held by the housing and surrounded by the tubular portion of the outer shield. The tubular portion has a first end and a second end opposite to each other. The first end and the second end of the tubular portion open. The tubular portion surrounds a hollow space. The connector is configured to be connected to a mating connector by moving toward the mating connector in a predetermined direction relatively with respect to the mating connector. The first end of the tubular portion of the outer shield is located in the predetermined direction in the tubular portion. The tubular portion of the outer shield has an inner circumferential surface facing the hollow space, an outer circumferential surface opposite to the inner circumferential surface, and a distal end surface provided at the first end.

Abstract: An engine speed control device performing: a first PID gain calculation step of calculating a target engine speed to thereby calculate a first PID gain based on an engine speed deviation between the target engine speed and an engine speed; a target rack position calculation step of correcting the first PID gain based on a cooling water temperature to thereby calculate a target rack position of a fuel injection pump; a second PID gain calculation step of calculating a second PID gain based on a rack position deviation between the target rack position and a rack position; and a rack control signal producing step of correcting the second PID gain based on a lubricating oil temperature to thereby produce a rack control signal. The engine speed control device thus controls an engine speed by controlling the rack position based on the rack control signal.

Abstract: An engine speed control device performing: a first PID gain calculation step of calculating a target engine speed to thereby calculate a first PID gain based on an engine speed deviation between the target engine speed and an engine speed; a target rack position calculation step of correcting the first PID gain based on a cooling water temperature to thereby calculate a target rack position of a fuel injection pump; a second PID gain calculation step of calculating a second PID gain based on a rack position deviation between the target rack position and a rack position; and a rack control signal producing step of correcting the second PID gain based on a lubricating oil temperature to thereby produce a rack control signal. The engine speed control device thus controls an engine speed by controlling the rack position based on the rack control signal.