Abstract:
A circuit-constituting unit forming a distribution circuit or the like in a vehicle. The circuit-constituting unit includes a plurality of bus bars for constituting a power circuit; a semiconductor switching device provided in the power circuit; and a control circuit board. The bus bars are bonded to a surface of the control circuit board such that the bus bars are arranged to be generally coplanar with each other. The semiconductor switching device is mounted on both of the corresponding bus bars and the control circuit board. An opening may be formed through the control circuit board. In this case, one of terminals of the semiconductor switching device may be connected to a surface of the control circuit board facing away from the surface to which the bus bars are bonded. The other terminals may be connected respectively to the bus bar through the opening.
Abstract:
Unit-forming bus bars including input terminal bus bars and output terminal bus bars are secured through an insulation layer to a rear surface of a heat radiation member that is exposed outside an electric connection box case, and switching devices are mounted on the bus bars. Relay switches that are different from the switching devices are mounted on a relay board. The relay board and a control circuit board for controlling driving of the switching devices are disposed on a surface facing away from the rear surface of the heat radiation member, and are parallel to each other.
Abstract:
In a heat radiator plate, a mounting bracket extending from a peripheral edge portion of the heat radiator plate, an auxiliary heat radiator plate portion extending along the mounting bracket and positioned between the mounting bracket 39 and a body through a gap and a radiant heat radiator portion formed on a top end of the auxiliary heat radiator plate portion and opposing to the body through the gap are provided. Heat generated by a circuit construction body is conducted from the heat radiator plate, the auxiliary heat radiator plate portion and the radiant heat radiator portion to the gap and radiated to the body through the gap. The heat radiation characteristics of the connector box are improved.
Abstract:
In printed boards arranged in a vertical relationship, outer peripheral portions of an upper printed board are projected outward from outer peripheral portions of a lower printed board. Conductive bodies with terminal holes are arranged side by side on the upper and the lower printed boards along peripheral edges of the boards. Press-fit terminals are arranged in row arrangement along the outer peripheral portions of the printed boards. Each of the press-fit terminals is pressed from below into terminal holes of the two upper and lower printed boards with a long first vertical portion outside and a short second vertical portion inside. This results that a press-fit portion of the second vertical portion is pressed and brought into contact with a terminal hole in a conductive body on a peripheral edge of the lower printed board, a press-fit portion of the first vertical portion is pressed and brought into contact with a terminal hole in a conductive body on a peripheral edge of the upper printed board, and a horizontal portion is supported from below by a step-like portion projected from a printed board retaining case.
Abstract:
A vehicle junction box for rapidly and easily assembling a connector using a quick connector and a method for assembling the same is disclosed. The junction box includes a case having an accommodating section receiving the lower side of a connector, a power distribution center having a fixing section receiving the upper side of the connector, guides formed at the sides of the connector, recesses receiving the guides, guide grooves having openings formed in a movable bar moved forward and rearward, and a manipulation part moving the movable bar forward and rearward so as to open and close the openings.
Abstract:
A power circuit section including a plurality of bus bars is disposed through an insulation layer on a circuit arrangement surface of a heat radiation member. An end of each of the bus bars is folded up from the circuit arrangement surface to form an external connection terminal. An enclosure wall member that surrounds the power circuit section including the external connection terminal is disposed on the heat radiation member. A connector housing contains an external connection connector that comprises a bottom portion provided with terminal, a through-hole into which the external connection terminal is inserted, and a hood that surrounds the external connection terminal. The external connection connector can be coupled to another connector together with the external connection terminal. A waterproof layer is formed within the enclosure wall member so that at least a part of the power circuit section is sealed and the terminal through-hole is sealed.
Abstract:
A terminal portion of non-implementation branch path branched from a input terminal is disposed within a fuse box. A switching member separated from the input terminal is implemented in an implementation branch path. The terminal portion of the non-implementation branch path is connected to one end terminal portion of the implementation branch path via fuse. The other end terminal portion of the implementation branch path is connected to tan output terminal fitting.
Abstract:
A tab protection member in a male connector housing on an outer surface of an electric junction box is moveable from a temporary engagement position to a final engagement position. The tab protection member is provided with tab through-holes and a closing plate section for closing an opening in the male connector housing. When the female connector housing is coupled to the male connector housing, the tab protection member is forcibly moved from the temporary engagement position to the final engagement position by the female connector housing and the tabs penetrate the tab through-holes, thereby coupling the tabs to terminals in the female connector housing.
Abstract:
The electrical connector housing contains a power distributor panel including a printed circuit board, one face of which carries conductors and semiconductor switching elements and the other face of which is adhered with a busbar. The electrical connector housing further contains a laminated-busbar unit connected to a power source circuit. A first tab is formed from one end of the busbar fixed to the power distributor panel, or by welding with the conductors, and is protruded beyond a first sidewall of the power distributor panel, while a second tab is formed from a busbar extending from the laminated-busbar unit. These tabs are connected by a relay system. The electrical connector housing thus manufactured can be assembled efficiently, its maintenance is easy, and the semiconductor switching elements used therein can be replaced easily.
Abstract:
A busbar is arranged along a clearance, which is a dead space between a plurality of relay mounting portions and a fuse mounting portion in a block main body. The busbar is provided with narrow fusible links and tabs for connection with relays and fuses. The tabs are formed by bending portions of the busbar at positions downstream of the fusible links and are inserted through terminal holes in the relay mounting portions and the fuse mounting portion. The fusible links are set to be fusible at 30 amperes or higher, and a power supply is connected with the relays via the fusible link portions.