WO2016152134A1 - ケーブル接続構造及びその製造方法 - Google Patents
ケーブル接続構造及びその製造方法 Download PDFInfo
- Publication number
- WO2016152134A1 WO2016152134A1 PCT/JP2016/001596 JP2016001596W WO2016152134A1 WO 2016152134 A1 WO2016152134 A1 WO 2016152134A1 JP 2016001596 W JP2016001596 W JP 2016001596W WO 2016152134 A1 WO2016152134 A1 WO 2016152134A1
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- WIPO (PCT)
- Prior art keywords
- bus bar
- connection structure
- cable connection
- cable
- flat cable
- Prior art date
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/592—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connections to contact elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
- H01R35/02—Flexible line connectors without frictional contact members
- H01R35/025—Flexible line connectors without frictional contact members having a flexible conductor wound around a rotation axis
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
- H01R35/04—Turnable line connectors with limited rotation angle with frictional contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/202—Cable lay-outs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/027—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems between relatively movable parts of the vehicle, e.g. between steering wheel and column
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/63—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to another shape cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
- H01R43/0214—Resistance welding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/18—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing bases or cases for contact members
Definitions
- the present invention mainly relates to a connector provided in a rotary connector device.
- a rotary connector device for electrically connecting a rotating side and a fixed side, such as a steering side and a vehicle body side of an automobile.
- a device such as an air bag that requires a reliable operation in an emergency.
- a rotary connector having a configuration in which the steering side and the vehicle body side are connected by a flexible flat cable or the like wound so as to be loosened is used without using a low-reliability sliding electrode or the like.
- the flexible flat cable is obtained by coating a plurality of thin conductors with resin or the like.
- the flexible flat cable and an external electrical component are connected via a connector as shown in Patent Documents 1 to 3.
- the connector includes a plurality of metal bus bars (pin terminals) and a resin insulating portion (support member) disposed so as to cover the bus bars.
- a resin insulating portion support member disposed so as to cover the bus bars.
- an insertion hole is formed in the side surface of the insulating portion, and the bus bar is fixed by inserting (press-fitting) the bus bar into the insertion hole.
- Patent Document 3 first, a bus bar (pin terminal) is caulked and connected to the covered electric wire. And the said bus bar is fixed by inserting this crimped bus bar in the resin-made insulation parts (support member).
- the present invention has been made in view of the above circumstances, and a main object thereof is to provide a cable connection structure capable of connecting a bus bar and an insulating portion with a simple configuration.
- this cable connection structure includes a plurality of bus bars, a flat cable, and an insulating portion.
- the flat cable is connected to the bus bar.
- a bus bar mounting groove that is a groove for individually arranging the bus bars is formed in the insulating portion, and a bus bar fixing portion that fixes the bus bar by covering the bus bar is formed.
- the bus bar is formed with at least one protrusion that protrudes to one side in the depth direction of the bus bar mounting groove and to which the flat cable is mounted.
- the flat cable is connected to the protruding portion of the bus bar.
- a bus bar exposing hole that exposes the bus bar at a portion of the insulating portion corresponding to the protruding portion of the bus bar and on the opposite side of the protruding direction of the protruding portion. Is preferably formed.
- the flat cable and the bus bar can be connected by, for example, resistance welding.
- the bus bar fixing portion is a portion that is deformed so that a part of the insulating portion is crushed, and the crushed portion covers a part of the bus bar.
- the following configuration is preferable. That is, at least one end portion of the bus bar is formed with a bent portion that is bent when viewed in the arrangement direction of the bus bar.
- the insulating part is formed with a bus bar restricting part that restricts the movement of the bus bar by contacting the bent part.
- the bus bar mounting groove also serves as a covered wire mounting groove for mounting a covered wire connected to the flat cable via the bus bar.
- the bus bar fixing portion is disposed between a portion to which the covered electric wire is attached and a portion to which the flat cable is attached.
- a core wire housing portion and a sheath housing portion are formed in the covered wire mounting groove.
- the mounting position of the covered electric wire can be clarified by separating the core wire receiving portion and the covering receiving portion.
- a plurality of wall portions for individually arranging the core wires are formed in the core wire housing portion, and a core wire exposure hole for exposing the core wires is formed between the wall portions. Preferably it is formed.
- the core wire and the bus bar can be connected by resistance welding.
- a covering fixing portion that can be fixed by fitting the covering electric wire is formed in the covering housing portion.
- the bus bar is formed with a plurality of the protruding portions arranged in the longitudinal direction of the bus bar.
- bus bar fitting parts are formed at positions corresponding to the plurality of protruding parts, and the bus bar fitting parts fit into the protruding parts, respectively.
- bus bar and the insulating portion are fitted at a plurality of locations, the displacement of the bus bar can be more suitably prevented.
- the manufacturing method of the cable connection structure includes a bus bar arranging step, a bus bar fixing step, and a flat cable connecting step.
- the bus bar arranging step the bus bar is arranged in a bus bar mounting groove which is a groove for individually arranging the bus bars.
- the bus bar fixing step the bus bar disposed in the bus bar mounting groove is fixed by melting a bus bar fixing portion formed integrally with the insulating portion.
- the flat cable connecting step the flat cable is connected to a protrusion formed on the bus bar and protruding to one side in the depth direction of the bus bar mounting groove and to the side where the flat cable is mounted.
- the external appearance perspective view which shows the whole structure of the rotation connector apparatus containing the cable connection structure which concerns on one Embodiment of this invention.
- the perspective view which shows the mode of the flexible flat cable accommodated in the accommodation space, and a retainer.
- the end view which shows the shape of the bottom face of a bus-bar attachment groove
- the bottom view which shows the bus-bar exposure hole and core wire exposure hole which are formed in an insulation part.
- the disassembled perspective view of the cable connection structure which concerns on a 1st modification.
- the end view which shows the shape of the bottom face of the bus-bar attachment groove
- the perspective view which shows the shape of the bus-bar which concerns on a 4th modification from a 2nd modification.
- a rotary connector device 1 shown in FIGS. 1 and 2 includes a stator 11 and a rotator 12.
- the stator 11 is fixed to an appropriate member on the vehicle body side, for example, a combination switch.
- the stator 11 is attached so as to be rotatable relative to a steering wheel (not shown). Further, an outer cylindrical portion 31 is formed on the stator 11.
- the inner cylinder part 32 is formed in the rotator 12, and a steering wheel is inserted into the inner cylinder part 32.
- the rotator 12 is configured to rotate integrally with the inserted steering wheel and to rotate relative to the stator 11.
- the stator 11 and the rotator 12 are each formed with a recess for attaching the fixing pin 18.
- the fixing pin 18 By attaching the fixing pin 18 to the recesses of the stator 11 and the rotator 12, the rotator 12 can be locked so as not to rotate with respect to the stator 11.
- the fixing pin 18 is temporarily attached so that the position of the rotator 12 does not deviate from the neutral position when the rotary connector device 1 is attached to the vehicle body. After the rotary connector device 1 is properly attached to the vehicle body, the rotator 12 can be rotated with respect to the stator 11 by breaking the fixing pin 18 in the middle.
- the first connector 35 is attached to the stator 11, and the second connector 36 is attached to the rotator 12.
- the second connector 36 rotates integrally with the rotation of the rotator 12.
- the first connector 35 and the second connector 36 are configured to be connectable to unillustrated cables drawn from an external electric circuit (for example, a horn switch, an airbag module, a power supply, an ECU, etc.).
- a cable housing space that is an annular space is formed between the stator 11 and the rotator 12. Specifically, the cable housing space is a space surrounded by the outer wall portion of the inner cylindrical portion 32 and the inner wall portion of the outer cylindrical portion 31.
- a retainer 25 and two flexible flat cables (flat cables) 14 and 15 are housed inside the cable housing space.
- the retainer 25 includes a base ring 26 and a plurality of rotating rollers 27.
- the base ring 26 is a plate-like member formed in an annular shape.
- the base ring 26 is configured to be rotatable about the rotation axis of the rotator 12.
- the rotating rollers 27 are arranged at equal intervals in the circumferential direction on one surface side of the base ring 26.
- the flexible flat cables 14 and 15 are accommodated in the cable accommodating space so as to be wound on the base ring 26.
- the first end portions 14 a and 15 a of the two flexible flat cables 14 and 15 are connected to the first connector 35.
- the flexible flat cables 14 and 15 drawn out from the first connector 35 to the cable housing space are wound so that a part of the flexible flat cables 14 and 15 extends along the inner peripheral surface of the outer cylindrical portion 31 of the stator 11 outside the retainer 25. Then, the flexible flat cables 14 and 15 are reversed in direction so as to be wound around one of the plurality of rotating rollers 27 (reversing unit 16 and reversing unit 17). Thereafter, the flexible flat cables 14 and 15 are wound inside the retainer 25 so as to follow the outer peripheral surface of the inner cylindrical portion 32 of the rotator 12 and are finally drawn out from the cable housing space. The second ends 14 b and 15 b of the two flexible flat cables 14 and 15 drawn out from the cable housing space are connected to the second connector 36.
- the flexible flat cables 14 and 15 are wound inside the cable housing space so as to have an appropriate length of slack, and the length of the slack is determined by the rotation of the rotator 12 relative to the stator 11. It changes by doing.
- the flexible flat cables 14 and 15 can be held in an always aligned state in the cable housing space.
- the airbag module on the steering wheel side (rotation side) and the power source on the vehicle body side (fixed side) can be electrically connected via the flexible flat cables 14 and 15.
- the cable connection structure 100 arranged inside the first connector 35 or the second connector 36 will be described with reference to FIGS.
- the cable connection structure 100 includes an insulating portion 40, a bus bar 60, a covered electric wire 70, and the flexible flat cable 14. Note that the configuration of this embodiment may be applied to the flexible flat cable 15 instead of the flexible flat cable 14.
- the bus bar 60 is an elongated member made of a conductive material such as metal.
- the cable connection structure 100 includes a plurality of (six in this embodiment) bus bars 60. In this embodiment, four of the six bus bars 60 are connected to the covered electric wire 70, and the remaining two are connected to terminals not shown. As shown in FIG. 4, a covered wire connecting portion 61, a triangular projecting portion (projecting portion) 62, and a bent portion 63 are formed on the bus bar 60.
- the covered electric wire connecting portion 61 is a portion on one side (the covered electric wire 70 side) from the approximate center in the longitudinal direction of the bus bar 60.
- the covered wire connecting portion 61 is flat without any irregularities.
- the bus bar 60 is electrically and mechanically connected to the covered electric wire 70 by the covered electric wire connecting portion 61.
- the triangular protrusion 62 is formed on each bus bar 60.
- the triangular protrusion 62 has two triangular vertices located on the bus bar 60, and the remaining one vertex is above the bus bar 60 (one side perpendicular to the longitudinal direction of the bus bar 60, It is formed so as to be located on one side in the direction perpendicular to the arrangement direction and one side in the depth direction of the bus bar mounting groove 41.
- the bus bar 60 is electrically and mechanically connected to the flexible flat cable 14 by a triangular protrusion 62.
- the bent portion 63 is formed at an end portion on the other side in the longitudinal direction of the bus bar 60 (opposite side of the covered electric wire 70).
- the bent portion 63 is a portion that is bent perpendicularly to the longitudinal direction of the bus bar 60 (specifically, on the opposite side of the flexible flat cable 14).
- the insulating portion 40 is made of resin and is integrally molded using a mold. As shown in FIG. 4, a bus bar mounting groove 41 and a bus bar exposure hole 42 are formed in the insulating portion 40.
- FIG. 5 is an end view of the bus bars 60 viewed in the arrangement direction.
- the bus bar mounting groove 41 is a groove for mounting a plurality of bus bars 60. Since six bus bars 60 are arranged in the present embodiment, the bus bar mounting grooves 41 are also formed at six locations. The upper side of the bus bar mounting groove 41 (a direction perpendicular to the longitudinal direction of the bus bars 60 and a direction perpendicular to the arrangement direction of the bus bars 60) is opened. Conventionally, the bus bar is attached by inserting the bus bar into the through hole formed in the insulating portion (that is, moving the bus bar along the longitudinal direction). In this regard, in the present embodiment, as shown in FIG. 4, the bus bar 60 is moved perpendicularly to the longitudinal direction (parallel to the depth direction of the bus bar mounting groove 41), so that the bus bar 60 is insulated from the insulating portion 40 (in detail). Is placed in the bus bar mounting groove 41).
- the depth direction of the bus bar mounting groove 41 is a concept including a direction from the surface of the insulating portion 40 toward the bottom surface of the bus bar mounting groove 41 and the opposite direction.
- the depth direction of the bus bar mounting groove 41 coincides with the insertion direction of the bus bar 60.
- a bus bar exposure hole 42 and a bus bar restricting portion 43 are formed in the bus bar mounting groove 41. Specifically, one bus bar exposure hole 42 is formed in each bus bar mounting groove 41, and a bus bar restricting portion 43 is formed at the end of the bus bar mounting groove 41.
- the bus bar exposure hole 42 is a penetrating round hole.
- the diameter of the bus bar exposure hole 42 is larger than the width of the bus bar mounting groove 41.
- the bus bar exposure hole 42 exposes the bus bar 60, the flexible flat cable 14 and the bus bar 60 can be welded by resistance welding (details will be described later).
- the bus bar 60 and the flexible flat cable 14 are welded in the state arrange
- the bus bar exposure hole 42 is formed at a position corresponding to the position where the triangular protrusion 62 (and a window 83 described later) is formed.
- the bus bar restricting portion 43 is a recess formed in the vicinity of the end of the bus bar mounting groove 41.
- the bus bar restricting portion 43 is configured such that the bent portion 63 of the bus bar 60 enters.
- the bus bar restricting portion 43 restricts the bus bar 60 from moving along the longitudinal direction by contacting the bent portion 63.
- the bus bar restricting portion 43 has a function of positioning the bus bar 60.
- a bus bar fixing portion 45 is formed in the vicinity of the center of the insulating portion 40.
- the bus bar fixing portion 45 is a portion that protrudes vertically from the surface of the insulating portion 40, and is formed beside the bus bar mounting groove 41.
- the operator brings the high-temperature processing tool into contact with the bus bar fixing portion 45 and presses it further downward.
- fixed part 45 can be deform
- the open portion of the bus bar mounting groove 41 and the bus bar 60 are covered by the bus bar fixing portion 45, so that the bus bar 60 can be fixed to the insulating portion 40 (see FIG. 3).
- the bus bar mounting groove 41 also serves as (includes) a covered wire mounting groove 41a for mounting the covered wire 70.
- a covered housing portion 51 for housing the covered wire 71 of the covered wire 70 and a core wire housing portion 55 for housing the core wire 72 of the covered wire 70 are formed.
- a covering fixing portion 53 is formed on the wall portion 52 of the covering accommodating portion 51.
- the covering fixing portion 53 has a concavo-convex shape that protrudes inward from the wall portion 52 (so as to approach the facing core wire exposure hole 57). Since the coating 71 is made of resin, the operator can fix the coating 71 to the insulating portion 40 by pressing the coating 71 against the coating fixing portion 53.
- the core wire exposure hole 57 is formed between the wall parts 56 of the core wire accommodating part 55, as shown in FIG.4 and FIG.6, the core wire exposure hole 57 is formed.
- the core wire exposure hole 57 is formed so as to penetrate in the vertical direction (the insertion direction of the bus bar 60). Thereby, after setting the bus bar 60 and the covered electric wire 70 in the insulating part 40, the bus bar 60 and the core wire 72 can be welded by resistance welding.
- the operator After attaching the bus bar 60 and the covered electric wire 70 to the insulating portion 40 and performing welding, the operator sets the flexible flat cable 14 on the insulating portion 40.
- the flexible flat cable 14 includes a covering portion 81 and a conductor portion 82 arranged side by side.
- a window part 83 for exposing the conductor part 82 is formed on the surface of the covering part 81.
- the window part 83 and the bus-bar exposure hole 42 are formed so that a position may correspond.
- the operator sandwiches the flexible flat cable 14 side of the window 83 and the bus bar exposed hole 42 side of the insulating part 40 with a resistance welding tool, thereby flexibly connecting the bus bar 60.
- the flat cable 14 can be electrically and mechanically connected.
- the attachment of the bus bar 60, the connection of the covered electric wire 70, and the connection of the flexible flat cable 14 can be performed in a series of flows.
- the cable connection structure 100 of this embodiment includes the plurality of bus bars 60, the flexible flat cable 14, and the insulating portion 40.
- the flexible flat cable 14 is connected to the bus bar 60.
- a bus bar mounting groove 41 that is a groove for individually arranging the bus bars 60 is formed in the insulating part 40, and a bus bar fixing part 45 that fixes the bus bar 60 by covering the bus bar 60 is formed.
- the bus bar 60 is formed with a triangular protrusion 62 that protrudes to one side in the depth direction of the bus bar mounting groove 41 and to which the flexible flat cable 14 is mounted.
- the flexible flat cable 14 is connected to the triangular protrusion 62 of the bus bar 60.
- a position corresponding to the triangular protrusion 62 of the bus bar 60 and on a side opposite to the protruding direction of the triangular protrusion 62 is provided in the insulating portion 40.
- a bus bar exposure hole 42 for exposing the bus bar 60 is formed in the insulating portion 40.
- the bus bar 60 can be exposed from the insulating portion 40 at the connection point with the flexible flat cable 14. Therefore, the flexible flat cable 14 and the bus bar 60 can be connected by resistance welding.
- the bus bar fixing portion 45 is a portion that is deformed so that a part of the insulating portion 40 is crushed, and a portion of the bus bar 60 is covered by the crushed portion.
- At least one end portion of the bus bar 60 is formed with a bent portion 63 that is bent when viewed in the arrangement direction of the bus bar 60.
- the insulating portion 40 is formed with a bus bar restricting portion 43 that restricts the movement of the bus bar 60 by contacting the bent portion 63.
- the bus bar mounting groove 41 also serves as a covered wire mounting groove 41a for mounting the covered wire 70 connected to the flexible flat cable 14 via the bus bar 60.
- a bus bar fixing portion 45 is disposed between a portion to which the covered electric wire 70 is attached and a portion to which the flexible flat cable 14 is attached.
- the bus bar 60 can be fixed at a position that does not interfere with both the connection between the bus bar 60 and the flexible flat cable 14 and the connection between the bus bar 60 and the covered electric wire 70.
- the core wire housing portion 55 and the sheath housing portion 51 are formed in the coated wire mounting groove 41a.
- the attachment position of the covered electric wire 70 can be clarified by separating the core wire receiving portion 55 and the covering receiving portion 51.
- the core wire accommodating portion 55 is formed with a plurality of wall portions 56 for individually arranging the core wires 72, and between the wall portions 56, the insulating portion.
- a core wire exposure hole 57 for exposing the core wire 72 is formed on the bottom surface of 40.
- the core wire and the bus bar 60 can be exposed on one surface and the other surface of the insulating portion 40. Therefore, the core wire 72 and the bus bar 60 can be connected by resistance welding.
- a covering fixing portion 53 that can be fixed by fitting a covering electric wire 70 (specifically, a covering 71) is formed in the covering housing portion 51.
- the shapes of the bus bar mounting groove 41 and the bus bar 60 are different from those of the above embodiment. Specifically, as shown in FIG. 8, at the bottom of the bus bar mounting groove 41, bus bar exposure holes 42 or bus bar fitting portions 44 are formed at regular intervals in the longitudinal direction of the bus bar mounting groove 41. Yes.
- the bus bar fitting portion 44 is a portion formed so as to protrude from the bottom of the bus bar mounting groove 41 to the bus bar 60 side. Further, the bus bar exposure hole 42 is formed at only one place for each bus bar mounting groove 41.
- the bus bar 60 of the first modified example is formed with a plurality of vertical protrusions 64 arranged at regular intervals in the longitudinal direction of the bus bar 60.
- the vertical protrusion 64 is a portion formed by bending the bus bar 60 perpendicularly to one side (one side perpendicular to the longitudinal direction and arrangement direction of the bus bars 60) and the other side.
- the vertical protrusions 64 are formed at equal intervals to the bus bar exposure holes 42 or the bus bar fitting portions 44 described above. More specifically, the position of the recess on the bus bar mounting groove 41 side (bottom surface side) formed by the vertical protrusion 64 corresponds to the position of the bus bar fitting part 44 (position of the protruding part). It is comprised so that a mutual fitting is possible.
- the concave portion on the bottom surface side of the vertical projecting portion 64 is fitted into the bus bar fitting portion 44, and the bent portion 63 enters the bus bar regulating portion 43.
- the bus bar 60 is mounted in the bus bar mounting groove 41. Thereby, while being able to attach bus bar 60 to a suitable position, position shift can be prevented.
- the bus bar 60 can be shared by forming a plurality of vertical protrusions 64 on the bus bar 60 and determining the shape of the insulating portion 40 so as to match it. Therefore, as shown in FIG. 8, the same type of bus bar 60 can be used also in the present embodiment in which the welding position of the flexible flat cable 14 differs depending on the bus bar 60. In addition, since the bus bar 60 and the insulating portion 40 are fitted at a plurality of locations, the displacement of the bus bar 60 can be more suitably prevented.
- FIG. 9A shows a bus bar 60 according to a second modification.
- the bus bar 60 according to the second modification has a rectangular parallelepiped protrusion (protrusion) 65 that protrudes in a rectangular parallelepiped shape on the upper surface.
- corrugation is not formed in the lower surface of the bus-bar 60 which concerns on a 2nd modification.
- FIG. 9B shows a bus bar 60 according to a third modification.
- the bus bar 60 according to the third modification is formed with a columnar protruding portion (protruding portion) 66 protruding in a columnar shape on the upper surface.
- corrugation is not formed in the lower surface of the bus-bar 60 which concerns on a 3rd modification.
- FIG. 9C shows a bus bar 60 according to a fourth modification.
- a rectangular parallelepiped protrusion 65 is formed on the upper surface, and a rectangular parallelepiped protrusion 65 is also formed on the lower surface.
- channel 41 corresponding to the rectangular parallelepiped protrusion part 65 formed in the lower surface is formed with the recessed part which can be fitted with the said rectangular parallelepiped protrusion part 65.
- the triangular protrusion 62 of the above embodiment, the vertical protrusion 64 of the first modification, the rectangular parallelepiped protrusion 65 of the second and fourth modifications, and the columnar protrusion 66 of the third modification are formed.
- the number is arbitrary and may be one or two or more (for example, the same number as the bus bar exposure holes 42).
- the shape of the lower surface of the bus bar 60 is also arbitrary.
- resistance welding is cited as a method of welding the covered electric wire 70 and the flexible flat cable 14 to the bus bar 60, but other connection methods such as ultrasonic welding or laser welding may be used.
- the width of the bus bar 60 is constant, but for example, a bus bar having a large middle portion may be used.
- the bus bar 60 is fixed by melting the protruding resin (bus bar fixing portion 45), but the bus bar 60 may be fixed using other members.
- the covered electric wire 70 and the terminal are connected to the bus bar 60, but a configuration in which only the covered electric wire or only the terminal is connected may be employed.
- Rotating connector device 14 15 Flexible flat cable (flat cable) DESCRIPTION OF SYMBOLS 40 Insulation part 41 Bus-bar attachment groove 42 Bus-bar exposure hole 43 Bus-bar restriction part 44 Bus-bar fitting part 45 Bus-bar fixing part 60 Bus-bar 61 Covered electric wire connection part 62 Triangular protrusion part 63 Bending part 70 Covered electric wire 100 Cable connection structure
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Multi-Conductor Connections (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Electric Cable Arrangement Between Relatively Moving Parts (AREA)
Abstract
Description
14,15 フレキシブルフラットケーブル(フラットケーブル)
40 絶縁部
41 バスバー取付溝
42 バスバー露出孔
43 バスバー規制部
44 バスバー嵌合部
45 バスバー固定部
60 バスバー
61 被覆電線接続部
62 三角状突出部
63 屈曲部
70 被覆電線
100 ケーブル接続構造
Claims (10)
- 複数本のバスバーと、
前記バスバーに接続されるフラットケーブルと、
前記バスバーを個別に配置するための溝であるバスバー取付溝が形成されるとともに、前記バスバーを覆うことで前記バスバーを固定するバスバー固定部が形成された絶縁部と、
を備え、
前記バスバーには、前記バスバー取付溝の深さ方向の一側であって前記フラットケーブルが取り付けられる側に突出する突出部が少なくとも1つ形成されており、
前記フラットケーブルは、前記バスバーの前記突出部に接続されることを特徴とするケーブル接続構造。 - 請求項1に記載のケーブル接続構造であって、
前記絶縁部において、前記バスバーの前記突出部に対応する位置であって、前記突出部の突出方向の反対側に位置する部分には、バスバーを露出させるバスバー露出孔が形成されていることを特徴とするケーブル接続構造。 - 請求項1に記載のケーブル接続構造であって、
前記バスバー固定部は、前記絶縁部の一部が潰れるように変形した部分であり、当該潰れた部分で前記バスバーの一部を覆うことを特徴とするケーブル接続構造。 - 請求項1に記載のケーブル接続構造であって、
前記バスバーの少なくとも一端部には、当該バスバーの配列方向で見たときに屈曲している屈曲部が形成されており、
前記絶縁部には、前記屈曲部に接触することで前記バスバーの移動を規制するバスバー規制部が形成されていることを特徴とするケーブル接続構造。 - 請求項1に記載のケーブル接続構造であって、
前記バスバー取付溝は、前記バスバーを介して前記フラットケーブルに接続される被覆電線を取り付けるための被覆電線取付溝を兼ねており、
前記被覆電線が取り付けられる部分と、前記フラットケーブルが取り付けられる部分との間に、前記バスバー固定部が配置されていることを特徴とするケーブル接続構造。 - 請求項5に記載のケーブル接続構造であって、
前記被覆電線取付溝には、芯線収容部と被覆収容部とが形成されていることを特徴とするケーブル接続構造。 - 請求項6に記載のケーブル接続構造であって、
前記芯線収容部には、芯線を個別に配置するための複数の壁部が形成されており、当該壁部の間には、前記芯線を露出させる芯線露出孔が形成されていることを特徴とするケーブル接続構造。 - 請求項6に記載のケーブル接続構造であって、
前記被覆収容部には、前記被覆電線を嵌め込むことで固定可能な被覆固定部が形成されていることを特徴とするケーブル接続構造。 - 請求項5に記載のケーブル接続構造であって、
前記バスバーには、当該バスバーの長手方向に並べて複数の前記突出部が形成されており、
前記絶縁部には、複数の前記突出部に対応する位置にバスバー嵌合部が形成されており、当該バスバー嵌合部は、前記突出部にそれぞれ嵌まることを特徴とするケーブル接続構造。 - 少なくともバスバー及びフラットケーブルを絶縁部に取り付ける工程を含むケーブル接続構造の製造方法において、
前記バスバーを個別に配置するための溝であるバスバー取付溝に、前記バスバーを配置するバスバー配置工程と、
前記絶縁部と一体的に形成されたバスバー固定部を溶かすことで前記バスバー取付溝に配置された前記バスバーを固定するバスバー固定工程と、
前記バスバーに形成されるとともに、前記バスバー取付溝の深さ方向の一側であって前記フラットケーブルが取り付けられる側に突出する突出部に対して前記フラットケーブルを接続するフラットケーブル接続工程と、
を含むことを特徴とするケーブル接続構造の製造方法。
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CN201680006295.0A CN107210548B (zh) | 2015-03-23 | 2016-03-18 | 电缆连接结构及其制造方法 |
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