WO2021059803A1 - Faisceau électrique fixé à boîte de dérivation - Google Patents

Faisceau électrique fixé à boîte de dérivation Download PDF

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Publication number
WO2021059803A1
WO2021059803A1 PCT/JP2020/031299 JP2020031299W WO2021059803A1 WO 2021059803 A1 WO2021059803 A1 WO 2021059803A1 JP 2020031299 W JP2020031299 W JP 2020031299W WO 2021059803 A1 WO2021059803 A1 WO 2021059803A1
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WO
WIPO (PCT)
Prior art keywords
bus bar
core wire
junction box
external connection
connection portion
Prior art date
Application number
PCT/JP2020/031299
Other languages
English (en)
Japanese (ja)
Inventor
英昭 伊藤
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2021059803A1 publication Critical patent/WO2021059803A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/02—Soldered or welded connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box

Definitions

  • This disclosure relates to a harness with a junction box.
  • connection boxes such as junction boxes mounted on vehicles have a housing and a bus bar housed in the housing. Then, as described in Patent Document 1, for example, this bus bar is connected to the other electric connection box or the like by fitting a mating side connection terminal provided in another electric connection box or the like. There are times.
  • a connector provided at the end of an electric wire is often used as the connection terminal on the other side.
  • the bus bar and another electric junction box or the like are electrically connected via an electric wire.
  • the bus bar and the electric wire are electrically connected via the connector.
  • the connecting portion between the electric wire and the bus bar becomes large.
  • a larger connector is used.
  • the purpose of the present disclosure is to provide a harness with a junction box that can reduce the size of the connection portion between the bus bar and the electric wire.
  • the harness with a junction box of the present disclosure has an electric junction box having a housing and a bus bar housed in the housing, a conductive core wire, and an insulating coating covering the surface of the core wire, and the core wire is welded to the bus bar. It is a harness with a junction box equipped with a wire.
  • connection portion between the bus bar and the electric wire can be miniaturized.
  • FIG. 1 is a perspective view of a harness with a junction box in one embodiment.
  • FIG. 2 is a partial cross-sectional view of the harness with a junction box according to the embodiment.
  • FIG. 3 is a perspective view of the harness with a junction box in the modified example.
  • FIG. 4 is a perspective view of the harness with a junction box in the modified example.
  • FIG. 5 is a schematic view showing a connection portion between the bus bar and the electric wire in the modified example.
  • FIG. 6 is a perspective view of the harness with a junction box in the modified example.
  • the harness with junction box of the present disclosure is (1) An electric connection box having a housing and a bus bar housed in the housing, and an electric wire having a conductive core wire and an insulating coating covering the surface of the core wire and having the core wire welded to the bus bar. It is a harness with a junction box.
  • the bus bar and the electric wire are connected by welding, they can be connected without using a connector. Therefore, the connection portion between the bus bar and the electric wire can be miniaturized.
  • the bus bar has an external connection portion protruding to the outside of the housing, and the core wire is welded to the external connection portion.
  • the core wire can be welded to the external connection portion of the bus bar while the bus bar is held on the housing side. Therefore, the bus bar and the core wire can be easily welded. Further, since it is not necessary to perform a complicated process such as accommodating the bus bar with the welded core wire in the housing, the harness with the junction box can be easily manufactured.
  • the core wire is a flat flat conductor
  • the external connection portion has a flat plate shape
  • the core wire and the external connection portion are in the thickness direction of the core wire and the thickness of the external connection portion. It is preferable that the welding is performed in a state of being overlapped so as to coincide with the vertical direction.
  • connection portion between the bus bar and the electric wire can be further miniaturized.
  • an insulating insulating member that covers the outer periphery of the external connection portion and the end portion of the core wire on the side to be welded to the external connection portion that is exposed from the insulating coating. ..
  • the insulating member suppresses foreign matter from coming into contact with the external connection portion or the exposed core wire. Therefore, it is possible to prevent the external connection portion or the exposed core wire from being electrically connected to the foreign matter.
  • the housing has a covering portion that protrudes from the outer surface of the housing to the outside of the housing and covers the base end portion of the external connection portion, and the insulating member further covers the outer periphery of the covering portion. It is preferable to cover it.
  • the harness 10 with a junction box of the present embodiment shown in FIG. 1 is mounted on a vehicle such as an automobile.
  • the harness 10 with a junction box has an electrical junction box 20 and an electric wire 50 connected to the electrical junction box 20.
  • the harness 10 with a junction box is arranged in the vehicle interior, for example, on the cowl side.
  • the electric junction box 20 distributes the electric power supplied from the battery 11 to various devices mounted on the vehicle.
  • the electrical junction box 20 may also be referred to as a junction box, a fuse box, a relay box, or the like, but in the present specification, these are collectively referred to as an electrical junction box.
  • the electrical junction box 20 has a housing 21 and a bus bar 31 housed in the housing 21.
  • the bus bar is housed in the housing means that not only the entire bus bar is arranged inside the housing but also at least a part of the bus bar is arranged inside the housing. That is, the case where a part of the bus bar is located outside the housing is also included.
  • the housing 21 is made of an insulating synthetic resin material.
  • the housing 21 has a box shape having a storage space 22 inside.
  • the housing 21 has an annular side wall portion 23, a bottom portion 24 that closes one end of the side wall portion 23, and a ceiling portion 25 that closes the other end of the side wall portion 23.
  • the inner space surrounded by the side wall portion 23, the bottom portion 24, and the ceiling portion 25 is the accommodation space 22.
  • the housing 21 is formed by assembling a case having a storage recess and a plurality of parts such as a lid for closing the opening of the case.
  • the side wall portion 23 is formed with a protruding hole 26, a first connection hole 27, and a second connection hole 28 that communicate with each other inside and outside the housing 21.
  • the protruding hole 26, the first connecting hole 27, and the second connecting hole 28 are arranged in a direction parallel to the bottom 24.
  • the circuit board 41 is housed inside the housing 21.
  • the circuit board 41 is arranged in the accommodation space 22 so as to be parallel to the bottom portion 24. However, the circuit board 41 does not have to be exactly parallel to the bottom portion 24, and may be inclined with respect to the bottom portion 24.
  • Various electronic components are assembled on the circuit board 41.
  • a first connector 42 exposed from the first connection hole 27 to the outside of the housing 21 and a second connector 43 exposed to the outside of the housing 21 from the second connection hole 28 are electrically formed. It is connected.
  • the first connector 42 and the second connector 43 are fitted with connectors provided in a device mounted on a vehicle, another electric junction box, or the like.
  • the bus bar 31 is arranged in the accommodation space 22.
  • the bus bar 31 is formed by pressing a conductive metal plate material.
  • the bus bar 31 is made of a copper alloy.
  • the bus bar 31 has a substantially flat plate shape.
  • the bus bar 31 is arranged with respect to the circuit board 41 so that the thickness direction of the bus bar 31 coincides with the thickness direction of the circuit board 41.
  • the fact that the thickness direction of the bus bar 31 and the thickness direction of the circuit board 41 match is not limited to the case where the two directions exactly match, and the thickness of the circuit board 41 with respect to the thickness direction of the bus bar 31. Including the case where the direction is slightly inclined.
  • the thickness direction of the bus bar 31 and the thickness direction of the circuit board 41 correspond to the vertical direction of the paper surface in FIG.
  • the bus bar 31 is directly or indirectly held by the housing 21. Further, the bus bar 31 is electrically connected to the circuit board 41.
  • the bus bar 31 is electrically connected to the first connector 42 and the second connector 43 via the circuit board 41.
  • the bus bar 31 has an external connection portion 32 that protrudes from the protruding hole 26 to the outside of the housing 21.
  • the external connection portion 32 is arranged outside the housing 21. That is, in the bus bar 31, the portion arranged outside the housing 21 is the external connection portion 32.
  • the external connection portion 32 has a substantially quadrangular flat plate shape.
  • the external connection portion 32 is arranged so that the thickness direction of the external connection portion 32 coincides with the thickness direction of the bottom portion 24.
  • the fact that the thickness direction of the external connection portion 32 and the thickness direction of the bottom portion 24 match is not limited to the case where the two directions exactly match, and the external connection portion 32 of the external connection portion 32 with respect to the thickness direction of the bottom portion 24. Including the case where the thickness direction is slightly inclined. Further, the thickness direction of the external connection portion 32 and the thickness direction of the bottom portion 24 correspond to the vertical direction of the paper surface in FIG. Then, in the present embodiment, the thickness direction of the bottom portion 24 is the same as the thickness direction of the circuit board 41.
  • the protruding hole 26 has a shape corresponding to the outer shape of the base end of the external connecting portion 32. Specifically, the protruding hole 26 has a rectangular shape in which the shape seen from the penetrating direction of the protruding hole 26 is substantially equal to the outer shape of the base end of the external connecting portion 32. The base end portion of the external connection portion 32 is supported by the inner peripheral surface of the protruding hole 26.
  • the electric wire 50 has a core wire 51 and an insulating coating 52 that covers the surface of the core wire 51.
  • the electric wire 50 is a single wire in which the core wire 51 is composed of one conductor.
  • the core wire 51 is a flat conductor having a flat rectangular shape with a cross section orthogonal to the longitudinal direction.
  • the core wire 51 is made of aluminum.
  • the insulating coating 52 is removed from the first end 50a, which is one end of the electric wire 50 on the side connected to the bus bar 31, and the core wire 51 is exposed.
  • the portion of the first end portion 50a where the core wire 51 is exposed is referred to as an exposed portion 53.
  • a connector 54 for connecting to the battery 11 is provided at the other end of the electric wire 50 and at the second end 50b opposite to the first end 50a.
  • the electric wire 50 is electrically connected to a battery terminal (not shown) which is electrically connected to a battery post (not shown) provided in the battery 11 via a connector 54.
  • the electric wire 50 may not be provided with the connector 54 and may be electrically connected to the battery post via the battery terminal by directly connecting the second end portion 50b to the battery terminal.
  • connection part between bus bar and electric wire The bus bar 31 and the electric wire 50 are connected by welding.
  • the core wire 51 is welded to the external connection portion 32 at the first end portion 50a.
  • the exposed portion 53 is externally connected by, for example, ultrasonic welding. It is welded to the portion 32.
  • the thickness direction of the core wire 51 and the thickness direction of the external connection portion 32 correspond to the vertical direction of the paper surface.
  • the electric wire 50 is electrically and mechanically connected to the bus bar 31.
  • the exposed portion 53 and the external connection portion 32 may be plated with nickel or the like.
  • the outer circumference of the connecting portion between the core wire 51 and the external connecting portion 32 is covered with an insulating insulating member 61.
  • the insulating member 61 is illustrated by a two-dot chain line.
  • the insulating member 61 of the present embodiment is a heat-shrinkable tube made of an insulating resin material.
  • the insulating member 61 covers the outer circumference of the exposed portion 53 and the external connecting portion 32 of the core wire 51. Specifically, the insulating member 61 covers the range from the end of the insulating coating 52 on the first end 50a side to the base end of the external connecting portion 32. Therefore, the entire external connection portion 32 from the tip end to the base end is located inside the insulating member 61. Further, the entire exposed portion 53 is located inside the insulating member 61.
  • the heat-shrinkable insulating member 61 is externally inserted into the electric wire 50 before the core wire 51 is welded to the external connection portion 32. Then, after the core wire 51 is welded to the external connection portion 32, the insulating member 61 is moved to a position that covers the connection portion between the core wire 51 and the external connection portion 32. After that, the insulating member 61 shrinks due to the heat treatment and comes into close contact with the external connecting portion 32 and the exposed portion 53.
  • the harness 10 with a junction box has an electric junction box 20 having a housing 21 and a bus bar 31 housed in the housing 21, and a conductive core wire 51 and an insulating coating 52 covering the surfaces of the core wire 51.
  • 51 includes an electric wire 50 welded to the bus bar 31.
  • the bus bar 31 and the electric wire 50 are connected by welding, they can be connected without using a connector. Therefore, the connection portion between the bus bar 31 and the electric wire 50 can be miniaturized. As a result, the harness 10 with a junction box can be miniaturized, and the space occupied by the harness 10 with a junction box in the vehicle interior can be reduced. Therefore, it is possible to increase the degree of freedom in arranging the harness 10 with the junction box in the vehicle interior.
  • the bus bar 31 has an external connection portion 32 protruding to the outside of the housing 21.
  • the core wire 51 is welded to the external connection portion 32.
  • the core wire 51 can be welded to the external connection portion 32 of the bus bar 31 while the bus bar 31 is held on the housing 21 side. Therefore, the bus bar 31 and the core wire 51 can be easily welded. Further, the electric wire 50 can be connected to the bus bar 31 provided in the electric junction box 20 of the finished product. Therefore, since it is not necessary to perform a complicated process such as accommodating the bus bar 31 to which the core wire 51 is welded in the housing 21, the harness 10 with a junction box can be easily manufactured.
  • the core wire 51 is a flat flat conductor. Further, the external connection portion 32 has a flat plate shape. The core wire 51 and the external connection portion 32 are welded in a state of being overlapped so that the thickness direction of the core wire 51 and the thickness direction of the external connection portion 32 coincide with each other.
  • connection portion between the bus bar 31 and the electric wire 50 can be further miniaturized.
  • the harness 10 with a junction box is an insulating insulation that covers the outer periphery of the external connection portion 32 and the end portion of the core wire 51 that is welded to the external connection portion 32 and is exposed from the insulating coating 52. It includes a member 61.
  • the insulating member 61 suppresses the contact of foreign matter with the exposed core wire 51, that is, the exposed portion 53 and the external connection portion 32. Therefore, it is possible to prevent the external connection portion 32 or the exposed portion 53 from being electrically connected to the foreign matter.
  • This embodiment can be implemented by changing as follows.
  • the present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
  • the same components as those in the above embodiment or the components corresponding to the above embodiment may be designated by the same reference numerals and a part or all of the description thereof may be omitted.
  • the housing 21A may have a covering portion 29 that protrudes from the outer surface of the housing 21A to the outside of the housing 21A and covers the base end portion of the external connecting portion 32.
  • the insulating member 61 may be configured to further cover the outer periphery of the covering portion 29.
  • the covering portion 29 projects from the outer peripheral surface of the side wall portion 23 to the outside of the housing 21.
  • the covering portion 29 has a tubular shape extending from the outer peripheral edge portion of the outer opening of the protruding hole 26 (not shown) on the side wall portion 23.
  • the covering portion 29 covers the outer circumference of the base end portion of the external connecting portion 32 over the entire circumference.
  • the insulating member 61 further covers the outer circumference of the covering portion 29 in addition to the outer circumference of the exposed portion 53 and the external connecting portion 32. Specifically, the insulating member 61 covers the range from the end portion of the insulating coating 52 on the first end portion 50a side to the base end of the covering portion 29.
  • the insulating member 61 does not necessarily have to cover the covering portion 29 to the base end of the covering portion 29 as long as it covers at least the outer circumference of the tip portion of the covering portion 29 over the entire circumference. By doing so, it is possible to prevent the base end portion of the external connecting portion 32 from being exposed from the insulating member 61.
  • the insulating member 61 is a heat shrink tube.
  • the insulating member 61 is not limited to the heat-shrinkable tube, and may be any insulating member capable of covering the outer periphery of the external connecting portion 32 and the exposed portion 53.
  • the insulating member 61 may be a cover made of an insulating resin that is retrofitted to the connecting portion between the bus bar 31 and the electric wire 50.
  • the insulating member 61 may be made of an insulating synthetic resin material in which the external connecting portion 32 and the exposed portion 53 are embedded.
  • the insulating member 61 may be an insulating adhesive tape wound around the external connecting portion 32 and the exposed portion 53.
  • the shape of the core wire 51 is not limited to the shape of the above embodiment.
  • the core wire 51 may have various shapes such as a polygonal shape, an elliptical shape, and a circular shape in a cross section orthogonal to the longitudinal direction.
  • the core wire 51 may be a stranded wire composed of a plurality of conductive metal wires.
  • the core wire 51B of the electric wire 50B shown in FIGS. 4 and 5 has a circular cross-sectional shape orthogonal to the longitudinal direction.
  • the electric junction box 20 is shown by omitting the first connector 42 and the second connector 43.
  • the core wire 51B is divided into two in a direction perpendicular to the longitudinal direction of the core wire 51B.
  • the external connection portion 32 is sandwiched between the core wires 51B divided into two. In this state, the core wire 51B is welded to the external connection portion 32. Therefore, the core wire 51B is mechanically and electrically connected on both end faces in the thickness direction of the external connection portion 32. Therefore, in this way, the strength of the connection between the bus bar 31 and the electric wire 50B is increased.
  • the core wire 51 is made of aluminum.
  • the core wire 51 may be made of a material that is conductive and can be welded to the bus bar 31.
  • the core wire 51 may be made of an alloy containing aluminum, copper, an alloy containing copper, or the like.
  • the bus bar 31 is made of a copper alloy.
  • the bus bar 31 may be made of a material that is conductive and can be welded to the core wire 51.
  • the bus bar 31 may be made of aluminum, an alloy containing aluminum, copper, or the like.
  • the shape of the bus bar 31 is not limited to the shape of the above embodiment.
  • the external connection portion 32C provided in the bus bar 31C shown in FIG. 6 has a bent portion at the base end portion.
  • the portion of the external connection portion 32C on the distal end side of the bent portion is perpendicular to the portion of the external connection portion 32C on the proximal end side of the bent portion. It is bent.
  • the core wire 51 is welded to a portion of the external connection portion 32C on the tip side of the bent portion.
  • the bus bar 31 may have an external connection portion 32 having a trapezoidal flat plate shape. Further, the bus bar 31 may be configured not to include the external connection portion 32. In this case, the welded connection portion between the core wire 51 and the bus bar 31 is arranged inside the housing 21. In this case, the insulating member 61 can be omitted.
  • the core wire 51 is welded to the bus bar 31 by ultrasonic welding.
  • the method of welding the core wire 51 to the bus bar 31 is not limited to this, and a known welding method can be used.
  • the core wire 51 may be connected to the bus bar 31 by resistance welding.
  • the electrical junction box 20 has two connectors, a first connector 42 and a second connector 43.
  • the number of connectors provided in the electrical junction box 20 may be one, or three or more.
  • the housing 21 may be provided with connection holes for exposing the connectors to the outside of the housing 21.
  • the bus bar 31 is electrically connected to the first connector 42 and the second connector 43 via the circuit board 41.
  • the bus bar 31 may be directly connected to the first connector 42 and the second connector 43 without going through the circuit board 41.
  • the electrical junction box 20 may not include the first connector 42 and the second connector 43.
  • the bus bar 31 has a connection terminal extending so as to be exposed from the housing 21. Then, a connector provided in a device mounted on the vehicle, another electric connection box, or the like is fitted into the connection terminal.
  • the shape of the housing 21 is not limited to the shape of the above embodiment as long as it can accommodate the bus bar 31 inside.
  • the connector 54 is connected to the battery 11.
  • the connector 54 does not necessarily have to be connected to the battery 11.
  • the connector 54 provided in the harness 10 with a junction box and the connector 54 provided in the harness 10 with a junction box are fitted together. It may be configured to connect.
  • the connector 54 does not necessarily have to be provided at the second end 50b of the electric wire 50.
  • the harness with a junction box includes two electric junction boxes 20
  • the first end portion 50a of the electric wire 50 is welded to the bus bar 31 provided in one of the electric junction boxes 20, and the other electric junction box 20.
  • the second end portion 50b of the electric wire 50 may be welded to the bus bar 31 provided in the 20.
  • the harness 10 with a junction box may be arranged in a place other than the cowl side in the vehicle interior. Further, the harness 10 with a junction box can be arranged not only in the vehicle interior of the vehicle but also in the engine room. In this case, it is preferable to provide a waterproof structure for preventing liquids such as water from adhering to the external connection portion 32 and the exposed portion 53. Further, it is preferable to provide a water blocking structure for preventing liquid such as water from entering the inside of the housing 21 from the protruding hole 26, the first connection hole 27 and the second connection hole 28.
  • the harness 10 with a junction box of the present disclosure may be referred to as an assembly including an electrical junction box 20 and an electric wire 50.
  • Some implementation examples of the present disclosure are directed to an assembly (10) comprising an electrical junction box (20) and an electric wire (50).
  • the electrical junction box (20) may have a housing (21) and a bus bar (31) that is at least partially housed in the housing (21).
  • the electric wire (50) may have a conductive core wire (51; 51B) and an insulating coating (52) covering the core wire (51; 51B).
  • the core wire (51; 51B) of the electric wire (50) and the bus bar (31) may be fixedly and electrically connected in advance by welding.
  • the electric wire (50) and the bus bar (31) are fixedly and electrically connected by welding in advance, so that the user of the assembly (10) (for example, the vehicle manufacturer) Can eliminate the work of connecting the electric wire (50) and the bus bar (31) on-site, for example, on-site welding at a vehicle manufacturer's manufacturing plant.
  • the conductive core wire (51) may have a tip metal plate portion (53) that is not covered by the insulating coating (52).
  • the tip metal plate portion (53) of the conductive core wire (51) and the bus bar (31) may be overlapped with a predetermined overlapping length and a predetermined overlapping width.
  • the tip metal plate portion (53) and the bus bar (31) may form a welding interface.
  • the conductive core wire (51B) may have a tip metal rod portion (53B) that is not covered by the insulating coating (52).
  • the tip metal rod portion (53B) of the conductive core wire (51B) may be separated from each other by a notch slit extending in the length direction from the tip end of the conductive core wire (51B) over a predetermined cutting depth.
  • the bus bar (31) is made of the tip metal so that the tip metal rod portion (53B) of the conductive core wire (51) and the bus bar (31) overlap with each other with a predetermined overlap length and a predetermined overlap width. It may be inserted into the notch slit of the rod portion (53B).
  • the conductive core wire (51) and the bus bar (31) may form a welding interface in the notch slit of the tip metal rod portion (53B).
  • the bus bar (31) forms a welding interface with the conductive core wire (51) in the notch slit of the tip metal rod portion (53B), so that the conductive core wire (51)
  • the electric conduction area between the conductive core wire (51) and the bus bar (31) can be secured without excessively increasing the height of the connecting portion between the bus bar (31) and the bus bar (31), and heat is generated in a large current application. It is advantageous to suppress.
  • the innermost portion of the notch slit of the tip metal rod portion (53B) is the insulating coating (52). It may match or align with the end face.
  • the conductor cross-sectional area of the tip metal rod portion (53B) with the notch slit closed is equal to the conductor cross-sectional area of the conductive core wire (51). ..
  • the predetermined depth of cut of the tip metal rod portion (53B) may be shorter than the total length of the conductive core wire (51B).
  • the predetermined depth of cut of the tip metal rod portion (53B) is the length of the tip metal rod portion (53B) of the conductive core wire (51B). May match or substantially match.
  • the welding interface may have a welding length smaller than the predetermined overlap length and / or a welding width shorter than the predetermined overlap width. ..
  • the welding interface has a welding length and a welding width that match or substantially match the predetermined overlap length and the predetermined overlap width, respectively. Good.
  • the electric wire (50) may be a power supply line configured to supply electric power from the power source (11) to the bus bar (31).
  • the electrical junction box (20) is A bus bar through hole (26) for projecting an external connection portion (32), which may be a tip portion of the bus bar (31), outward from the electrical connection box (20).
  • the busbar through hole (26) and the one or more connector through holes (27, 28) may be opened side by side to one common surface of the electrical connection box (20).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Connection Or Junction Boxes (AREA)
  • Insulated Conductors (AREA)

Abstract

La présente divulgation concerne un faisceau électrique fixé à une boîte de dérivation, permettant de réduire les dimensions d'une partie de connexion entre une barre omnibus et un fil électrique. Le faisceau électrique (10) fixé à une boîte de dérivation comprend : une boîte de dérivation électrique (20) comportant un châssis (21) et une barre omnibus (31) logée dans le châssis (21) ; et un fil électrique (50) comportant un fil central conducteur (51) et un revêtement isolant (52) recouvrant la surface du fil central (51), le fil central (51) étant soudé à la barre omnibus (31).
PCT/JP2020/031299 2019-09-27 2020-08-19 Faisceau électrique fixé à boîte de dérivation WO2021059803A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019177574A JP2021057955A (ja) 2019-09-27 2019-09-27 接続箱付きハーネス
JP2019-177574 2019-09-27

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WO2021059803A1 true WO2021059803A1 (fr) 2021-04-01

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567499A (en) * 1979-06-29 1981-01-26 Sumitomo Electric Industries Method of waterproofing wire lead port
JP2002359020A (ja) * 2001-05-30 2002-12-13 Sumitomo Wiring Syst Ltd フラットケーブルとバスバーとの接続方法および接続構造
JP2002374075A (ja) * 2001-06-13 2002-12-26 Fujitsu Ten Ltd 配線接続方法及び配線接続構造

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567499A (en) * 1979-06-29 1981-01-26 Sumitomo Electric Industries Method of waterproofing wire lead port
JP2002359020A (ja) * 2001-05-30 2002-12-13 Sumitomo Wiring Syst Ltd フラットケーブルとバスバーとの接続方法および接続構造
JP2002374075A (ja) * 2001-06-13 2002-12-26 Fujitsu Ten Ltd 配線接続方法及び配線接続構造

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