Abstract: A relay circuit includes a relay and a current divider. The relay includes a coil and a contact. The contact is configured to switches on and off a supply of power to a load that is configured to operate with power supplied from a direct-current power supply through conduction of the coil. The current divider is connected between the contact and the load and configured to split a current supplied from the power supply to the load. The current divider incudes a resistor and a capacitor connected in series and grounded.

Abstract: A relay driver circuit is connected between an upper stage relay and a lower stage relay and is configured to be driven in response to driving of the upper relay. The relay driver circuit drives the lower stage relay. The relay driver circuit includes a semiconductor component, a control input line, a protective component, and a buffer circuit. The semiconductor component switches on and off the lower relay. The control input line is electrically connected to a control terminal of the semiconductor component. A power supply voltage is applied to the control input line via the upper stage relay. The protective component is connected in the control input line to protect the semiconductor component. The buffer circuit is connected between the protective component in the control input line and the control terminal of the semiconductor component to compensate for a voltage drop due to the protective component.

Abstract: An electrical connection box includes a box body for accommodating an electrical part, and one or a plurality of connection terminals provided on at least one surface of the box body, in which the box body has a lid body provided on one surface different from the one surface on which the connection terminal is provided, the lid body has a shape of a polygonal plate, and a flow path for a liquid is provided along at least one side of the lid body on the inner surface side of the lid body. The flow path may be defined by a first wall erected on the inner surface side of the lid body along an edge of the one side of the lid body, and a second wall separated from the first wall and erected on the inner surface side of the lid body along the first wall.

Abstract: A power supply control device includes a control unit that executes determination processing that, when an operation instruction is received from a switch input detection unit, determines, in a case in which the switch circuit is turned on, whether or not a power source voltage value will decrease to or below an acceptable voltage value on the basis of a power source voltage value obtained from a voltage detection unit and a load current value stored in a storage unit in advance; and in the determination processing, executes switch control processing which allows the switch circuit to be turned on if the power source voltage value is determined to not decrease to or below the acceptable voltage value and does not allow the switch circuit to be turned on if the power source voltage value is determined to decrease to or below the acceptable voltage value.

Abstract: A power supply control device includes a control unit that executes determination processing that, when an operation instruction is received from a switch input detection unit, determines, in a case in which the switch circuit is turned on, whether or not a power source voltage value will decrease to or below an acceptable voltage value on the basis of a power source voltage value obtained from a voltage detection unit and a load current value stored in a storage unit in advance; and in the determination processing, executes switch control processing which allows the switch circuit to be turned on if the power source voltage value is determined to not decrease to or below the acceptable voltage value and does not allow the switch circuit to be turned on if the power source voltage value is determined to decrease to or below the acceptable voltage value.

Abstract: Elongated wire routing materials are bound by a first-side binding member on a first side in the longitudinal direction of the wire routing materials, and are bound by a second-side binding member on a second side opposite to the first side. An engaging member includes an engaging portion for assembly into a vehicle body, and an attachment portion serving as the part to which the wire routing materials are attached such that the attachment portion is slidable relative to the wire routing materials in the longitudinal direction. At least one of the engaging portion and the attachment portion comes into contact with the first-side binding member at the first side, and at least one of the engaging portion and the attachment portion comes into contact with the second-side binding member at the second side.

Abstract: An overcurrent protection device is to be provided between a power supply and a load circuit including an electric load and an electric wire electrically connected with each other, and includes a switching element, a current detector, a characteristic estimation portion, and a controller. The switching element switches flowing and interrupting of a load current that flows from the power supply to the electric load. The current detector detects the load current. The characteristic estimation portion estimates a thermal characteristic of the electric wire based on the load current detected by the current detector. The controller outputs an overcurrent protection signal for interrupting the load current so as to protect the load circuit from an overcurrent to the switching element based on the thermal characteristic estimated by the characteristic estimation portion and the load current detected by the current detector.

Abstract: A power supply trunk line routing structure for a vehicle includes a first power supply trunk line extending in a vehicle front and rear direction along a right-side part of the vehicle in a vehicle width direction, a second power supply trunk line extending in the vehicle front and rear direction at a left-side part of the vehicle in the vehicle width direction, and a third power supply trunk line connected to a predetermined power supply device and connecting the first power supply trunk line and the second power supply trunk line at a front part of the vehicle.

Abstract: A relay driver circuit is connected between an upper stage relay and a lower stage relay and is configured to be driven in response to driving of the upper relay. The relay driver circuit drives the lower stage relay. The relay driver circuit includes a semiconductor component, a control input line, a protective component, and a buffer circuit. The semiconductor component switches on and off the lower relay. The control input line is electrically connected to a control terminal of the semiconductor component. A power supply voltage is applied to the control input line via the upper stage relay. The protective component is connected in the control input line to protect the semiconductor component. The buffer circuit is connected between the protective component in the control input line and the control terminal of the semiconductor component to compensate for a voltage drop due to the protective component.

Abstract: Elongated wire routing materials are bound by a first-side binding member on a first side in the longitudinal direction of the wire routing materials, and are bound by a second-side binding member on a second side opposite to the first side. An engaging member includes an engaging portion for assembly into a vehicle body, and an attachment portion serving as the part to which the wire routing materials are attached such that the attachment portion is slidable relative to the wire routing materials in the longitudinal direction. At least one of the engaging portion and the attachment portion comes into contact with the first-side binding member at the first side, and at least one of the engaging portion and the attachment portion comes into contact with the second-side binding member at the second side.

Abstract: A relay circuit includes a relay and a current divider. The relay includes a coil and a contact. The contact is configured to switches on and off a supply of power to a load that is configured to operate with power supplied from a direct-current power supply through conduction of the coil. The current divider is connected between the contact and the load and configured to split a current supplied from the power supply to the load. The current divider incudes a resistor and a capacitor connected in series and grounded.

Abstract: A wire includes a metal wire which has a flat shape, and which is formed of a rigid body. The metal wire has a bending portion that is bendable at any position in a longitudinal direction of the metal wire. A vehicle includes the wire, the wire is disposed along a rocker panel inside the vehicle in a state of being extended in a straight line without being bent at the bending portion, and the bending portion is disposed at a connecting portion at which the rocker panel and a center pillar are connected to each other.

Abstract: An overcurrent protection apparatus that protects, from overcurrent, a load circuit including an electric load and wiring electrically connected with each other is provided. The overcurrent protection apparatus includes: a semiconductor switching element that is configured to control energization to the load circuit; and a breaker that stops the semiconductor switching element upon detection of abnormality of overheat or overcurrent at the semiconductor switching element, the breaker having a latch operation mode of continuously stopping the semiconductor switching element even upon cancellation of abnormality detection, and a retry operation mode of canceling stoppage of the semiconductor switching element upon the cancellation of the abnormality detection. The breaker is configured to initially operate in the latch operation mode upon the abnormality detection, and then be switched to the retry operation mode after satisfaction of a predetermined condition.

Abstract: An engaging member includes an engaging portion configured to be inserted and assembled into a fixing hole of a vehicle body, an attachment portion configured to attach elongated wire routing materials, and linking portions configured to connect the engaging portion and the attachment portion to each other. The linking portions are extendable and contractable in a longitudinal direction of the wire routing materials, and can oscillate the engaging portion side in an orthogonal direction, thereby allowing the engaging portion to be movable in the longitudinal direction and the orthogonal direction. A protrusion and a through portion are provided as a movement restricting portion for restricting the movement of the engaging portion to movement within a predetermined range.

Abstract: A flat wiring structure is including a plurality of layers, and includes a power supply layer, and a first ground layer and a second ground layer laminated with the power supply layer sandwiched therebetween. In a plan view of the flat wiring structure when viewed from a direction along a lamination direction of the first ground layer, the power supply layer, and the second ground layer, the power supply layer has a width in a short direction smaller than those of the first ground layer and the second ground layer, and the power supply layer is provided at a position covered with the first ground layer and the second ground layer.

Abstract: There is provided a routing structure of a circuit body in a rocker formed on a vehicle body. The circuit body routing structure has a recessed housing groove formed along an extending direction of the rocker on a side surface of the rocker at a vehicle interior side, a circuit body that is formed of a long flat conductor having a conductor portion of a flat cross-sectional shape and that is housed in the housing groove and routed on the rocker, and an interior material that is mounted on the rocker so as to cover an upper surface and the side surface of the rocker, and that holds the circuit body in the housing groove.

Abstract: Provided is a binding structure of a wire routing material which can allow reduction of cost and also provides excellent workability for assembly into a vehicle body when wiring for wire routing materials having different shapes, such as a wire harness and a flat wire routing material, is performed in the vehicle body. A binding structure 1 is formed in which a flexible wire routing material 2 and a plate-shaped flat wire routing material 3 having higher rigidity than the flexible wire routing material 2 overlap each other, and the flexible wire routing material 2 and the flat wire routing material 3 are enclosed in an annular form, bound, and held by a binding portion 45 of an engaging member 4 including an engaging portion 40 for assembly into the vehicle body.

Abstract: A power supply trunk line routing structure for a vehicle includes a first power supply trunk line extending in a vehicle front and rear direction along a right-side part of the vehicle in a vehicle width direction, a second power supply trunk line extending in the vehicle front and rear direction at a left-side part of the vehicle in the vehicle width direction, and a third power supply trunk line connected to a predetermined power supply device and connecting the first power supply trunk line and the second power supply trunk line at a front part of the vehicle.

Abstract: An engaging member includes an engaging portion configured to be inserted and assembled into a fixing hole of a vehicle body, an attachment portion configured to attach elongated wire routing materials, and linking portions configured to connect the engaging portion and the attachment portion to each other. The linking portions are extendable and contractable in a longitudinal direction of the wire routing materials, and can oscillate the engaging portion side in an orthogonal direction, thereby allowing the engaging portion to be movable in the longitudinal direction and the orthogonal direction. A protrusion and a through portion are provided as a movement restricting portion for restricting the movement of the engaging portion to movement within a predetermined range.

Abstract: Provided is a binding structure of a wire routing material which can allow reduction of cost and also provides excellent workability for assembly into a vehicle body when wiring for wire routing materials having different shapes, such as a wire harness and a flat wire routing material, is performed in the vehicle body. A binding structure 1 is formed in which a flexible wire routing material 2 and a plate-shaped flat wire routing material 3 having higher rigidity than the flexible wire routing material 2 overlap each other, and the flexible wire routing material 2 and the flat wire routing material 3 are enclosed in an annular form, bound, and held by a binding portion 45 of an engaging member 4 including an engaging portion 40 for assembly into the vehicle body.