Abstract: Provided are a relay device and a power supply device that can switch on/off a current path between power storage units, and can suppress, if an earth fault has occurred on either power storage unit side, a voltage reduction on the other power storage unit side. A relay device includes: a serial structural portion in which a resistance unit and a switch unit are connected in series to each other; a relay unit that serves as a path for a current to flow between a first power storage unit and a second power storage unit when the switch unit is in the ON state; and a control unit configured to perform control of switching the switch unit of the relay unit.

Abstract: A control circuit controls power supplied via an electrical wire, by turning a FET provided on the electrical wire on/off. A control unit calculates the temperature difference between the ambient temperature of the electrical wire and the electrical wire temperature in time series, based on a previous temperature difference between the ambient temperature of the electrical wire 5 and the electrical wire temperature that was calculated previously, and the value of current flowing through the electrical wire. The control unit is configured to suspend this time-series calculation of the temperature difference, and clocks the elapsed time from suspension to resumption of calculation of the temperature difference. The control unit, in the case where calculation of the temperature difference is resumed, sets an initial temperature difference to be used as the previous temperature difference, based on the clocked elapsed time, in an initial calculation of the temperature difference after resumption.

Abstract: A terminal fitting (10) includes an electrical contact (20) with a facing surface (21) facing a contact surface (81) of a mating terminal (80). A canted coil spring (50) that is made of a conductive wire material (51) has a wound surface inclined with respect to the coil axis (L) of the canted coil spring (60). The coil axis (L) is parallel with the facing surface (21) of the electrical contact member (20). The canted coil spring (50) is sandwiched between the mating terminal (80) and the electrical contact member (20) when the mating terminal (80) and the electrical contact member (20) approach each other. A holder shaft (40) is inserted in the canted coil spring (50) to hold the canted coil spring (50) in a posture where the coil axis L is parallel with the facing surface (21) of the electrical contact member (20).

Abstract: A reactor includes a coil having a pair of wound portions arranged side-by-side, a magnetic core having inner core portions and outer core portions, and a case that houses an assembly of the coil and the magnetic core. The case includes a bottom plate portion and a side wall portion that opposes outer peripheral surfaces of the outer core portions. The magnetic core is composed of a composite material and is joined to the bottom plate portion and the side wall portion. When a direction in which the wound portions are arranged in a side-by-side arrangement direction, the side wall portion includes a cut-out portion that exposes at least one of an external side surface of one of the wound portions and an external side surface of the other of the wound portions in the side-by-side arrangement direction to the outside of the case.

Abstract: In a power supply control apparatus, when a semiconductor switch is switched ON, a charging circuit increases a base voltage. A first switch is ON if a differential voltage obtained by subtracting a gate voltage from a base voltage is at least a first reference voltage, and is OFF if the differential voltage is smaller than the first reference voltage. If the first switch is ON, a battery or a capacitor charges parasitic capacitors of the semiconductor switch.

Abstract: A circuit structure that includes: an insulating heat transfer member that transfers heat from a bus bar to a heat dissipating member, is insulating, and is provided between the bus bar and the heat dissipating member; and a restricting member that restricts movement of the insulating heat transfer member that is caused by an increase in the temperature of the insulating heat transfer member, and is provided between the bus bar and the heat dissipating member. The restricting member is provided with heat transfer openings for bringing the insulating heat transfer member into contact with the bus bar, and, the insulating heat transfer member 80 has a smaller area than an opening area of the heat transfer openings, in a state of being in contact with the bus bar.

Abstract: A power supply control apparatus includes: a semiconductor switching element switched with PWM control; a PWM signal output unit outputting a PWM signal; a current circuit outputting a current related to a current flowing through the semiconductor switching element; a filter circuit converting the current that is output from the current circuit to a voltage; an overcurrent protection circuit turning off the semiconductor switching element based on a voltage value of the voltage filtered by the filter circuit; a voltage detection unit detecting the voltage value of the voltage at a timing near an end of a pulse of a PWM signal; a temperature estimation unit estimating, a temperature of an electric wire through which a current flows that also flows through the semiconductor switching element; and an electric wire protection unit turning off the semiconductor switching element based on the temperature estimated by the temperature estimation unit.

Abstract: A reactor including: a coil that includes a winding portion; a magnetic core that includes a plurality of core pieces that are located inside and outside the winding portion; an interposed member that is interposed between the coil and the magnetic core; and a resin mold portion that includes an outer covering portion that covers at least a portion of an outer core piece of the magnetic core, the outer core piece being located outside the winding portion. The interposed member includes an outer interposed portion that is interposed between an end surface of the winding portion and an inner end surface of the outer core piece, and the outer interposed portion has a hole on the outer core piece side, through which a portion of the inner end surface of the outer core piece is exposed from the resin mold portion.

Abstract: A connector includes barrels (19) formed in rear end parts of terminal fittings (15) and crimped to surround front end parts of coated wires (11). First to third molds (23A, 23B, 23C) each covering the front end part of the coated wire (11) including a crimped part to the barrel (19) in a liquid-tight manner. A housing (30) is formed with terminal accommodation chambers (31) each for accommodating the entire terminal fitting (15) and a front end area of the mold (23A, 23B, 23C), and first to third contacts (26A, 26B, 26C) each formed on a projection (25) of the mold (23A, 23B, 23C) projecting out from the housing (30) and configured to suppress deformation of the projection (25) of the mold (23A, 23B, 23C) by coming into contact with the housing (30).

Abstract: A connection module configured to connect a plurality of battery packs having positive and negative electrode terminals, the connection module including an insulating member having a holding portion that holds a bus bar configured to connect electrode terminals of adjacent battery packs, and a temperature detection portion that detects the temperature of the bus bar, the insulating member having a temporary locking portion that detachably locks the temperature detection portion.

Abstract: Provided are a communication device and a communication restriction program capable of suppressing invalid message transmission to a network by injecting an invalid program. The ECU includes a CAN controller having a register group storing a value concerning communication with a different ECU and a processing unit processing a value for the register group. The ECU switches the mode between the full control mode in which writing and reading are allowed for the register group in the CAN controller and the restriction mode wherein writing and reading are restricted for a part of the registers in the register group. The ECU sets a predetermined period from activation corresponding to the full control mode, and switches the full control mode to the restriction mode after the predetermined period elapses. After switching to the restriction mode, the ECU will not switch the mode to the full control mode.

Abstract: An electric wire with a connector in which high adhesiveness can be ensured at both the interface between an insulator and a sealing layer and the interface between a connector housing and the sealing layer, and a wire harness using this electric wire with a connector are provided. The electric wire with a connector includes an insulated electric wire including a conductor and an insulator containing silicone with which the outer circumference of the conductor is coated, a connector terminal connected to a portion of the conductor exposed by stripping a portion of the insulator, a connector housing made of a resin in which an end of the insulated electric wire and a portion of the connector terminal are embedded, and a sealing layer provided between the surface of the insulator and the connector housing covering the outer circumference of the surface of the insulator at the end of the insulated electric wire. The sealing layer is constituted by a sticky adhesive.

Abstract: A shield connector includes an inner housing that hold terminals connected to wires, and a shield shell accommodates an inner housing and an end of the shielded cable. The shield shell includes a cable inserting portion to receive the shielded cable. A convex portion projects from a side of the inner housing. The shield shell includes a base on which the inner housing is arranged, and a cover fit to the base. The base includes a bottom plate to cover a bottom of the inner housing, two base-side plates to cover side surfaces of the inner housing, and an engaging hole in the base-side plate. The convex portion of the inner housing engages the engaging hole. The cover includes an upper plate to cover a top of the inner housing, and cover-side plates rising from sides of the upper plate to overlap the base-side plates and cover the engaging hole.

Abstract: A conductive path with noise filter that enables an efficient reduction in a surge noise in a specific frequency band is provided. A conductive path with noise filter includes a conductive path main body, V-phase wire, W-phase wire, a coil-shaped inductor, V-phase inductor, W-phase inductor surrounding the conductive path main body, V-phase wire, W-phase wire, and a capacitor, V-phase capacitor, W-phase capacitor arranged between the conductive path main body, V-phase wire, W-phase wire and the inductor, V-phase inductor, W-phase inductor.

Abstract: There is provided a composite material containing magnetic powder and a polymeric material including the powder in a dispersion state, wherein a content of the magnetic powder with respect to the whole composite material is more than 50% by volume and 75% by volume or less, a saturation magnetic flux density of the composite material is 0.6 T or more, and a relative magnetic permeability of the composite material is more than 20 and is 35 or less. It is preferable that a density ratio of the magnetic powder should be 0.38 or more and 0.65 or less. The density ratio is set to be an apparent density/a true density. Moreover, it is preferable that the magnetic powder should include a plurality of particles constituted of the same material.

Abstract: A wire W1 is a wire W1 in which a plurality of strand conductors 11 are twisted at a predetermined twist pitch P1 and which includes a bent portion 20 having a bent shape with a curvature K. A section length L1 of the bent portion 20 is an integer multiple of the twist pitch P1.

Abstract: A communication connector (30) includes a plurality of terminals (31) to be connected to a plurality of wires (12 to 18) exposed by removing a coating (20) of a cable (11) in which the plurality of wires (12 to 18) for transmitting communication signals are collectively surrounded by the coating (20), a housing (35) for holding the plurality of terminals (31) arranged side by side in a plurality of stages, and alignment members (40A, 40B) including partition walls (44 to 46) made of metal and to be disposed between adjacent ones of the exposed plurality of wires (12 to 18).

Abstract: An aluminum alloy wire, an aluminum alloy twisted wire, a covered wire, and a wiring harness, which are excellent in impact strength when a terminal fitting is connected. An aluminum alloy wire contains 0.03% or more and 1.5% or less by mass of Mg, 0.02% or more and 2.0% or less by mass of Si, and 0.1% or more and 0.6% or less by mass of Fe, with the balance consisting of Al and impurities; the wire containing acicular-shaped Mg2Si precipitates of 2.0 to 6.0 in aspect ratio. Further, provided are an aluminum alloy twisted wire containing a plurality of the aluminum alloy wires; a covered wire containing a conductor containing the aluminum alloy wire, and an insulation coating covering the outer circumference of the conductor; and a wiring harness containing a terminal fitting attached to the conductor of the covered wire.

Abstract: It is an object of the present invention to provide a technique with which it is possible to improve the production yield of a shield member that includes a drain wire with a free end portion by cutting a long drain wire-attached shield member to a desired length. The shield member includes a shield portion and a drain wire. The shield portion can shield an electric wire. The drain wire includes: a holding portion provided between a first end and a second end of the shield portion and held in the shield portion; and an extension portion that is continuous with the holding portion and extends outward from the shield portion. At least a portion of the holding portion extends between the first end and the second end of the shield portion while having excess length.

Abstract: It is aimed to build a trunk line of an in-vehicle network having low connection resistance. The in-vehicle network is composed of a trunk line (1) and branch lines (2) branched from branch points (3) arranged at a plurality of intermediate positions of the trunk line (19 via connectors (CO) and to be connected to electronic control units (U). A bypass bypassed toward the connector (CO) from the trunk line (1) is formed at each branch point (3) of the branch line (1), and an exposed part of a core (7) is formed in this bypass and connected to a trunk line terminal (6). A branch line terminal (8) connected to an end of the branch line (2) and the trunk line terminal (6) are connected inside the connector (CO).