Abstract: A wire harness wired to a vehicle has an electrical connection box at a terminal thereof. The electrical connection box includes an electronic component block to which a plurality of electronic components are assembled and a casing to be an assembly destination of the electronic component block. The casing has a structure in which an upper cover rotates and moves to cover an upper opening portion surrounded by an edge of a frame peripheral wall. The casing includes the frame peripheral wall having the upper opening portion, the upper cover covering the opening portion by rotational movement, and a packing to be assembled to the upper cover. The packing is assembled to a packing groove formed in the upper cover. The frame peripheral wall has a position adjusting portion for adjusting the position of the packing groove with respect to the edge of the frame peripheral wall.

Abstract: A locking structure includes: a locking protrusion and a locking arm. The locking arm includes a flexible arm main body and an engaging projection portion protruding from an outer surface of the arm main body. The locking protrusion includes a protrusion main body on which an arm guide surface, a protruding tip surface, and an engaging surface are disposed along the engagement direction, and a jig groove that is formed in the protrusion main body. The engaging projection portion is formed on the outer surface at a position away from an arm tip of the arm main body in the engagement direction. The protruding tip surface is longer than the arm tip in the engagement direction. The jig groove cuts out the protrusion main body in the engagement direction from the arm guide surface to the protruding tip surface.

Abstract: A wire harness wired to a vehicle has an electrical connection box at a terminal thereof. The electrical connection box includes an electronic component block to which a plurality of electronic components are assembled and a casing to be an assembly destination of the electronic component block. The casing has a structure in which an upper cover rotates and moves to cover an upper opening portion surrounded by an edge of a frame peripheral wall. The casing includes the frame peripheral wall having the upper opening portion, the upper cover covering the opening portion by rotational movement, and a packing to be assembled to the upper cover. The packing is assembled to a packing groove formed in the upper cover. The frame peripheral wall has a position adjusting portion for adjusting the position of the packing groove with respect to the edge of the frame peripheral wall.

Abstract: A wire harness arranged in a vehicle has an electrical connection box at the terminal thereof. The electrical connection box includes an electronic component block to which a plurality of electronic components are assembled and a casing to be an assembly destination of the electronic component block. The casing has a structure in which an upper opening portion surrounded by an edge of a frame peripheral wall is rotatably moved and covered by a separate upper cover. In the casing, a protrusion is formed on one of the frame peripheral wall or the upper cover. On the other thereof, a protrusion engaging portion is formed with respect to the protrusion. The protrusion is formed so as to be engaged with the protrusion engaging portion in an inserted state. In such protrusion, a projection is integrally formed so as to at least prevent the upper cover from coming off.

Abstract: An electrical connection box includes a housing including a frame and a lower cover configured to be fitted to the frame in a fitting direction. At least part of the frame and at least part of the lower cover form a tubular lead-out portion. An axial direction of the lead-out portion extends along the fitting direction, and the lead-out portion allows a wire harness to be pulled out through the lead out portion, the wire harness including an end portion that is to be disposed in an inside of the housing. The lead-out portion includes harness contact portions formed on an inner peripheral surface of the lead-out portion and configured to contact the wire harness. The harness contact portions extend along the fitting direction and are spaced from one another in a circumferential direction of the lead-out portion.

Abstract: An electrical connection box includes a housing, and at least one electronic component accommodated in the housing. The housing includes an accommodation chamber that accommodates the electronic component, a wire outlet that draws out a wire electrically connected to the electronic component from the housing, and a wire routing space that guides the wire drawn out from the accommodation chamber to the wire outlet. A wall forming an outer wall of the housing includes a drain hole, or a through hole, which communicates the wire routing space and an outer side of the housing and which discharges liquid entering through the wire outlet to the outer side of the housing. The drain hole is formed in a first contact area of an inner wall surface of the wire routing space, toward which the liquid entering the wire routing space through the wire outlet heads first.

Abstract: In an electric connection box and a wire harness, a side cover is attached to an outer peripheral surface of a housing, and the housing and the side cover form a side space portion. An electric wire extends from an internal space portion to the side space portion and is routed to the outside of the housing through the side space portion. In the electric wire, an electric wire main body is formed along an inclined direction of an inclined wall of the side cover. A regulating portion is formed along the inclined direction of the inclined wall in the housing in the side space portion. A gap between the electric wire and the housing is filled with the regulating portion. In the side space portion, the electric wire main body is positioned between the inclined wall of the side cover and the regulating portion.

Abstract: In an electric connection box and a wire harness, a side cover is attached to an outer peripheral surface of a housing, and the housing and the side cover form a side space portion. An electric wire extends from an internal space portion to the side space portion and is routed to the outside of the housing through the side space portion. In the electric wire, an electric wire main body is formed along an inclined direction of an inclined wall of the side cover. A regulating portion is formed along the inclined direction of the inclined wall in the housing in the side space portion. A gap between the electric wire and the housing is filled with the regulating portion. In the side space portion, the electric wire main body is positioned between the inclined wall of the side cover and the regulating portion.

Abstract: An electrical connection box includes a housing, and at least one electronic component accommodated in the housing. The housing includes an accommodation chamber that accommodates the electronic component, a wire outlet that draws out a wire electrically connected to the electronic component from the housing, and a wire routing space that guides the wire drawn out from the accommodation chamber to the wire outlet. A wall forming an outer wall of the housing includes a drain hole, or a through hole, which communicates the wire routing space and an outer side of the housing and which discharges liquid entering through the wire outlet to the outer side of the housing. The drain hole is formed in a first contact area of an inner wall surface of the wire routing space, toward which the liquid entering the wire routing space through the wire outlet heads first.

Abstract: an electrical connection box includes an enclosure, and at least one electronic component housed in the enclosure, where the enclosure includes a housing chamber where the electronic component is housed, a wire outlet configured to allow a wire that is electrically connected to the electronic component to be drawn out from inside to outside, a wire routing space configured to guide, to the wire outlet, the wire that is drawn out from the housing chamber, and an infiltration prevention structure configured to catch, inside the wire routing space, liquid entering from the wire outlet, and where the infiltration prevention structure includes a wall that is configured to catch liquid entering from the wire outlet.

Abstract: Disclosed is an electrical junction box including a case, and a block housed in the case. The case includes a frame, and a lower cover attached to a lower end side of the frame a joint part part of an outer wall of the frame and an outer wall of the cover an upper end of the outer wall of the lower cover is positioned more inwardly than a lower end of the outer wall of the frame and nearly the same height as a component insertion plane. At an edge portion of the block is disposed a waterproof barrier located between the component housing of the block and the joint part part and extending below the component insertion plane of a lower end of the component housing.

Abstract: An electrical connection box applied to a wire harness includes a casing that includes an accommodating space that is formed therein and that accommodates an electronic component, and a guiding space that is partitioned horizontally lateral to the accommodating space therein via a partition wall, and that extends in a vertical direction and guides water entered therein to a vertically downside. The casing includes a water-preventing rib that is provided in the guiding space, and that guides water guided to the vertically downside in the guiding space, in a direction of avoiding from an avoidance target portion that is positioned vertically below the guiding space.

Abstract: An electric connection box includes a circuit protection component, a housing, and a metal heat conductive member. The circuit protection component is provided with a metal circuit protection member. The circuit protection member includes a power supply side connector that is electrically connected to power supply side electric wires connected to a power supply side, load side connectors that are electrically connected to load side electric wires connected to a load side, and fuse elements interposed between the power supply side connector and the load side connectors. The housing is formed of an insulating material, and includes a protection component holding unit that holds the circuit protection component. The heat conductive member includes a contacting portion that contacts the power supply side connector in a state where the protection component holding unit holds the circuit protection component, and a heat conducting portion connected to the contacting portion.

Abstract: An electrical connection box applied to a wire harness includes a casing that includes an accommodating space that is formed therein and that accommodates an electronic component, and a guiding space that is partitioned horizontally lateral to the accommodating space therein via a partition wall, and that extends in a vertical direction and guides water entered therein to a vertically downside. The casing includes a water-preventing rib that is provided in the guiding space, and that guides water guided to the vertically downside in the guiding space, in a direction of avoiding from an avoidance target portion that is positioned vertically below the guiding space.

Abstract: A round terminal fixation structure is a structure for fixing a round terminal connected to an end of an electric wire to a bus bar in an overlapping manner with a bolt. The round terminal includes: a bolt insertion portion with a first through-hole into which the bolt is inserted; a core wire crimp portion for crimping a core wire of the electric wire; and an insulating cover crimp portion. The bus bar includes: a flat plate portion with a second through-hole; a pair of standing pieces vertically extended from the flat plate portion for positioning the core wire crimp portion in between the pair of standing pieces while the first and second through-holes are overlapped with each other; and connection portions electrically connected to the relay or the fuse. A gap between the pair of standing pieces is formed smaller than a width of the bolt insertion portion.

Abstract: An electric connection box includes a circuit protection component, a housing, and a metal heat conductive member. The circuit protection component is provided with a metal circuit protection member. The circuit protection member includes a power supply side connector that is electrically connected to power supply side electric wires connected to a power supply side, load side connectors that are electrically connected to load side electric wires connected to a load side, and fuse elements interposed between the power supply side connector and the load side connectors. The housing is formed of an insulating material, and includes a protection component holding unit that holds the circuit protection component. The heat conductive member includes a contacting portion that contacts the power supply side connector in a state where the protection component holding unit holds the circuit protection component, and a heat conducting portion connected to the contacting portion.

Abstract: Provided is a round terminal fixation structure which can easily install a round terminal at a fixation position and prevent assembling failure. The round terminal fixation structure fixes the round terminal connected to an end of an electric wire to a bus bar in an overlapping fashion by a bolt. The round terminal includes a bolt insertion portion having a first through-hole for passing the bolt and a core wire crimp portion crimping a core wire of the electric wire. The bus bar includes a flat plate portion having a second through-hole for passing the bolt and a standing piece extending perpendicularly from the flat plate portion and configured to abut on the core wire crimp portion when bolting the round terminal to prevent rotation of the round terminal. A distal end of the standing piece is slanted towards the flat plate portion with distance from the second through-hole.

Abstract: An electrical junction box includes a body case of the electrical junction box that has an opening part facing electrical components and has a case side locking part, and a cover that covers the opening part, is engaged to the body case of the electrical junction box, and has a cover side locking part. The cover is engaged to or disengaged from the body case of the electrical junction box with the case side locking part and the cover side locking part. The cover has a cover side abutting part to match a position of the cover side locking part. The body case of the electrical junction box has a case side abutting part to match a position of the case side locking part and a position of the cover side abutting part.

Abstract: An electrical junction box provides a frame and a cover that covers an opening portion of the frame. There is a difference of elevation in an edge of the frame, and the edge includes a lower portion, a higher portion, and an inclination portion. A double wall formed of an exterior wall and an interior wall and positioning the edge of a peripheral wall between the exterior wall and the interior wall is provided to the cover. There is a difference of elevation in the edge of the interior wall similarly the frame, and the edge includes the lower portion, the higher portion, and the inclination portion. Also, a lapping amount between the peripheral wall and the interior wall at the inclination portion is formed larger than a lapping amount at the lower portion.

Abstract: A harness outlet through which a wiring harness is passed is provided on a sidewall of a case of an electrical junction box. A harness guide is extended form a circumference of the harness outlet to protect the wiring harness and to regulate a path (outlet direction) of the wiring harness. At a side near the harness outlet, the harness guide covers a whole circumference of the wiring harness. At a side away from the harness outlet, the harness guide covers both sides and an upper portion of the wiring harness, and a portion for covering the lower portion of the wiring harness is not provided on the harness guide.