JP2018092837A - Wire harness structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness structure which allows for easy addition of an electrical apparatus without performing complex connection work, and allows for easy removal of an added electrical apparatus without repairing or replacing of a harness.SOLUTION: A wire harness structure consists of a standard harness 11 including a standard electrical apparatus 26 and a standard connector 25, an additional connection harness 12 including an additional electrical apparatus 32 and an additional connection connector 33, and a connector device 13 having multiple slots 41. The connector device 13 includes a power supply bus bar 90A for electrically connecting the power source line 21A, the earth wire 31B and the communication wires 21C, 21D of the standard harness 11, with the power source line 31A, the earth wire 31B and the communication wires 31C, 31D of the additional connection harness 12, by bonding the standard connector 25 and the additional connection connector 33 to the slot 41, an earth bus bar 90B and communication bus bars 90C, 90D.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a structure of a wire harness routed in a vehicle.

  As shown in FIG. 4, a standard harness 4 that connects between a standard electrical equipment 1 that is commonly attached to a vehicle to be attached and a junction box 3 that includes a control unit 2 as a vehicle wiring harness, and an extended electrical equipment There is one provided with an extension harness 7 to which an additional connection member 6 is branched and connected when additional 5 is attached (for example, see Patent Document 1).

  According to this wire harness, the additional electrical device 5 can be retrofitted without adding any change to the standard harness 4 by additionally connecting the additional connection member 6 to the expansion harness 7.

Japanese Patent Laying-Open No. 2006-15809

  However, in the above-described vehicle wire harness, when the extension electrical equipment 5 is additionally attached, the harness branch connection mechanism 8 of the additional connection member 6 is retrofitted to the extension harness 7 by pressure welding, adhesion, or welding. Therefore, the branch connection is made, and the connection work is complicated. Further, when the harness branch connection mechanism 8 that is once retrofitted and branch-connected is removed, it is necessary to repair the branch connection portion in the extension harness 7 or to replace the extension harness 7 itself, which increases costs.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to easily add an electrical device without performing complicated connection work, and without repair or replacement of a harness. An object of the present invention is to provide a wire harness structure in which an added electrical device can be easily removed.

In order to achieve the above-described object, the wire harness structure according to the present invention is characterized by the following (1) to (3).
(1) Standard harness with standard electrical equipment and standard connectors;
An additional connection harness provided with additional electrical equipment and an additional connection connector;
A connector device having a plurality of slots to which the standard connector and the additional connector can be joined; and
A wire harness structure for a vehicle comprising:
The standard harness and the additional connection harness each have at least a power line, a ground line, and a communication line,
In the connector device, the standard connector and the additional connection connector are joined to the slot to electrically connect the power supply line, the ground line, and the communication line of the standard harness and the additional connection harness. A wire harness structure comprising a bus bar, a ground bus bar, and a communication bus bar.
(2) The wire harness structure according to (1), wherein a dummy connector is joined to the slot in which the standard connector and the additional connection connector in the connector device are not joined.
(3) Each of the standard harness and the additional connection harness includes a plurality of the communication lines,
The connector device includes a plurality of the communication bus bars that electrically connect the plurality of communication lines.
The wire harness structure according to (1) or (2), wherein the connector device is provided with a noise suppression member that suppresses generation of noise from the communication bus bar.

According to the wire harness structure of the configuration of (1) above, the standard electrical equipment is provided by joining the additional connection connector of the additional connection harness to the other slot of the connector device in which the standard connector of the standard harness is joined to the slot. Additional connection harnesses equipped with additional electrical equipment can be added collectively to the standard harness.
Accordingly, it is possible to easily add optional equipment and equipment after mass production without performing complicated connection work such as pressure welding, adhesion, or welding.
Thereby, the difference of the mounting equipment by the difference in the grade of a vehicle can be absorbed with a connector apparatus, and the common part number of the standard harness provided with the standard electric equipment in various vehicles can be aimed at.
Moreover, the additional electrical equipment once added can be easily removed by removing the additional connection connector from the connector device. Thereby, compared with the case where an additional electrical equipment is connected by the pressure welding, adhesion | attachment, or welding which requires repair and replacement | exchange of a harness, the cost concerning repair and replacement | exchange of a harness can be reduced.
The connector device electrically connects the power wires, ground wires, and communication wires of the standard harness and the additional connection harness with a power bus bar, a ground bus bar, and a communication bus bar. The size can be reduced as compared with a device including a control unit for controlling the device.
According to the wire harness structure having the configuration (2), the empty slot can be protected by joining the dummy connector to the empty slot in the connector device.
According to the wire harness structure having the configuration (3), it is possible to suppress the influence of noise between the plurality of communication bus bars as much as possible by the noise suppressing member.

  According to the present invention, it is possible to easily add an electrical device without performing complicated connection work, and it is possible to easily remove the added electrical device without repairing or replacing the harness. Can provide.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

Drawing 1 is a mimetic diagram of a wire harness explaining a wire harness structure concerning this embodiment. FIG. 2 is an exploded perspective view of the connector device. FIG. 3 is a perspective view of a connector device in which a standard connector, an additional connection connector, and a dummy connector are joined. FIG. 4 is a schematic diagram of a wire harness provided with an extension harness to which an additional connection member is connected.

Hereinafter, examples of embodiments according to the present invention will be described with reference to the drawings.
Drawing 1 is a mimetic diagram of a wire harness explaining a wire harness structure concerning this embodiment.

  As shown in FIG. 1, the wire harness structure according to this embodiment includes a standard harness 11, an additional connection harness 12, and a connector device 13.

  The standard harness 11 includes a wire bundle 21 having a communication line, a power line, a ground line, and the like. For example, the standard harness 11 is routed in a substantially central portion along the floor of the vehicle body, and has a simple shape like a backbone of the vehicle body 1. The standard harness 11 includes standard electrical equipment 26 that is commonly attached to a vehicle such as an air conditioner unit or a power window unit.

  In the standard harness 11, a multiplex communication distribution connector 22, a power distribution connector 23, and a ground distribution connector 24 are provided on the wire bundle 21. Each of the multiple communication distribution connector 22, the power distribution connector 23, and the ground distribution connector 24 is composed of a joint connector. A connector provided on a communication line extending from an electronic control unit (ECU: Electronic Control Unit) is joined to the multiplex communication distribution connector 22. A connector provided on a power supply line extending from a power source such as a battery is joined to the power distribution connector 23. The ground distribution connector 24 is joined to a connector provided on a ground wire connected to the body of the vehicle body and grounded. Thereby, in the standard harness 11, the power supply to the standard electrical equipment 26 and the communication between the standard electrical equipment 26 and the electronic control unit are enabled, and the standard electrical equipment 26 can be driven and controlled.

  A standard connector 25 is connected to the end portion of the wire bundle 21 in the standard harness 11, and the standard connector 25 is joined to the connector device 13.

  The additional connection harness 12 includes a wire bundle 31 having a communication line, a power line, a ground line, and the like. The additional connection harness 12 has an additional electrical equipment 32 connected to one end thereof. The additional electrical equipment 32 is an electrical equipment that is selectively attached to the vehicle in addition to the standard electrical equipment 26 that is commonly attached to the vehicle. The additional electrical equipment 32 is, for example, electrical equipment such as a head-up display (HUD), an in-vehicle camera, and a millimeter wave radar. The additional connection harness 12 includes various types of additional electrical equipment 32 depending on the grade, and is mounted on the vehicle.

  An additional connection connector 33 is connected to the other end of the additional connection harness 12, and the additional connection connector 33 is joined to the connector device 13.

  FIG. 2 is an exploded perspective view of the connector device. FIG. 3 is a perspective view of a connector device in which a standard connector, an additional connection connector, and a dummy connector are joined.

  As shown in FIGS. 2 and 3, the connector device 13 has a plurality of (eight in this example) slots 41, and the standard connector 25 and the additional connection connector 33 are joined to these slots 41. .

  In this example, the wire bundle 21 of the standard harness 11 connected to the standard connector 25 has one power line 21A, one ground line 21B, and two communication lines 21C and 21D. In addition, the wire bundle 31 of the additional connection harness 12 connected to the additional connection connector 33 includes one power line 31A, one ground line 31B, and two communication lines 31C and 31D in this example. Yes.

  The standard connector 25 and the additional connection connector 33 each have a housing 51 and a plurality of female terminals 52. The housing 51 is a resin molded product and has a plurality of terminal accommodating portions 53. Female terminals 52 are inserted into and accommodated in the terminal accommodating portions 53 from the rear end side of the housing 51. A tab insertion hole (not shown) that communicates with the terminal accommodating portion 53 is formed at the front end of the housing 51. The female terminal 52 is made of a conductive metal material such as copper or a copper alloy. The female terminal 52 has a crimping portion 55 and an electrical connection portion 56. The electrical connection portion 56 is formed in a cylindrical shape, and a tab portion 92 of a bus bar 90 described later is inserted therein.

  In the standard connector 25, the female terminals 52 are electrically connected by crimping the crimping portions 55 to the ends of the power supply line 21A, the ground wire 21B, and the communication lines 21C and 21D, respectively. 51 is housed by being inserted into the terminal housing portion 53.

  In the additional connection connector 33, the female terminals 52 are electrically connected by crimping the crimping portions 55 to the end portions of the power supply line 31A, the ground wire 31B, and the communication lines 31C and 31D, respectively. The terminal 51 is inserted into and accommodated in the terminal accommodating portion 53 of the housing 51.

  In the connector device 13, a dummy connector 40 is joined to an empty slot 41 other than the slot 41 to which the standard connector 25 and the additional connection connector 33 are joined. The dummy connector 40 includes the same housing 51 as the standard connector 25 and the additional connection connector 33. The housing 51 of the dummy connector 40 may include a female terminal 52 or may not include the female terminal 52. The dummy connector 40 may be formed of a dedicated housing for closing the empty slot 41, for example, without the terminal accommodating portion 53.

  The connector device 13 includes a housing body 60, an inner housing 70, a noise suppressing member 80, and a bus bar 90.

  The housing body 60 is a resin molded product and is formed in a box shape. The housing body 60 has a plurality of slots 41 formed in parallel in the vertical direction on the front side thereof. The housing main body 60 has a fitting recess (not shown) formed on the rear surface side thereof. A lock portion 61 having a claw portion (not shown) is formed at the top and bottom of the rear portion of the housing body 60.

  Further, the housing body 60 is formed with a mounting portion 62 on one side. The mounting portion 62 has a groove portion 63 formed in the front-rear direction of the housing body 60. Further, the attachment portion 62 has a locking piece portion 64. The locking piece 64 is formed so as to straddle the groove 63 with a gap between the locking piece 64 and the side surface of the housing body 60. In the mounting portion 62, a plate-like bracket (not shown) provided on the vehicle body side is inserted into the groove portion 63 and inserted between the side surface of the housing body 60 and the locking piece portion 64. Thereby, the housing main body 60 is attached to the predetermined position of the vehicle body.

  The inner housing 70 is a resin molded product like the housing body 60. The inner housing 70 is fitted into the housing main body 60 by being fitted into a fitting recess formed on the rear surface side of the housing main body 60. The inner housing 70 has a lock locking portion 71 at the top and bottom, and the lock locking portion 71 is locked by the lock portion 61 of the housing main body 60 when the inner housing 70 is fitted in the fitting recess of the housing main body 60. The Thereby, the inner housing 70 is maintained in a state of being mounted on the housing body 60.

  The inner housing 70 has a plurality of connector joints 72 partitioned by a plurality of partition walls 75 on the mounting side to the housing body 60. These connector joints 72 are provided at positions corresponding to the slots 41 of the housing body 60. The connector joint portion 72 is formed with four tab insertion holes 73 (two are shown in FIG. 2) penetrating the front and back surfaces at intervals. The connector joint 72 has an accommodation recess 74 formed at the center in the width direction. Two tab insertion holes 73 closer to the center of the tab insertion holes 73 are formed in the housing recess 74.

  The noise suppression member 80 is formed from ferrite, for example, and is provided in the same number (eight) as the slots 41 of the housing body 60. The noise suppression member 80 is received by being fitted into the receiving recess 74 of each connector joint 72 of the inner housing 70. Two through holes 81 are formed in the noise suppression member 80. In the state where the noise suppressing member 80 is housed in the housing recess 74, the through hole 81 communicates with the tab insertion hole 73 of the inner housing 70.

  The bus bar 90 is made of a conductive metal material such as copper or a copper alloy. In this example, four bus bars 90 are provided. The bus bar 90 includes a bus bar main body 91 formed in a long plate shape and a plurality of bar-shaped tab portions 92 formed on one side of the bus bar main body 91. These tab portions 92 are formed in the same number (eight) as the slots 41 of the housing main body 60 and extend in parallel with a space therebetween. Further, locking protrusions 93 are formed at both ends of the bus bar main body 91.

  The bus bar 90 is attached to the inner housing 70 from the rear surface side opposite to the attachment side to the housing body 60. The bus bars 90 are arranged in the vertical direction with respect to the inner housing 70, and are arranged in parallel at intervals in the width direction of the inner housing 70. The tab portions 92 of these bus bars 90 are inserted into the tab insertion holes 73 of the inner housing 70 and attached to the inner housing 70.

  Each bus bar 90 is attached to the inner housing 70, so that the locking protrusion 93 is locked to the inner housing 70, thereby maintaining the state of being attached to the inner housing 70. Further, the bus bar 90 is attached to the inner housing 70 so that the tab portion 92 protrudes from the connector joint portion 72 of the inner housing 70. At this time, the tab portions 92 of the two bus bars 90 mounted closer to the center of the inner housing 70 are passed through the through-holes 81 of the noise suppressing member 80 housed in the housing recess 74 and protruded.

  Here, one of the bus bars 90 mounted on both sides of the inner housing 70 is a power bus bar 90A, and the other is an earth bus bar 90B. The two bus bars 90 mounted near the center of the inner housing 70 are communication bus bars 90C and 90D.

  In the connector device 13, when the inner housing 70 to which the noise suppressing member 80 and the bus bar 90 are attached is fitted into the fitting recess from the rear side with respect to the housing main body 60, the tab portion 92 of the bus bar 90 is attached to the housing main body 60. Is accommodated in the slot 41.

  In the wire harness structure provided with the connector device 13 described above, the standard harness 11 is routed to the vehicle body of the vehicle. And the standard connector 25 of this standard harness 11 is joined to the slot 41 of the connector apparatus 13 attached to the predetermined position of the vehicle body. Furthermore, when the additional electrical equipment 32 is retrofitted to the vehicle, the additional connection harness 12 to which the additional electrical equipment 32 is connected is routed to the vehicle body. Then, the additional connection connector 33 of the additional connection harness 12 is joined to the slot 41 of the connector device 13.

  As described above, when the additional connection connector 33 of the additional connection harness 12 is joined to the connector device 13 to which the standard connector 25 of the standard harness 11 is joined, the electrical connection portion 56 of the standard connector 25 and the female terminal 52 of the additional connection connector 33 is connected. The tab portion 92 of the bus bar 90 is inserted, and the female terminal 52 and the bus bar 90 are electrically connected. As a result, the power supply line 21A, the ground wire 21B, and the communication lines 21C, 21D of the wire bundle 21 of the standard harness 11, and the power supply line 31A, the ground wire 31B, and the communication lines 31C, 31D of the wire bundle 31 of the additional connection harness 12 are provided. The power bus bar 90A, the ground bus bar 90B, and the communication bus bars 90C and 90D are electrically connected to each other.

  As a result, the power source, the electronic control unit, and the ground connected to the standard harness 11 are connected to the additional connection harness 12, and the power supply to the additional electrical equipment 32 and the communication between the additional electrical equipment 32 and the electronic control unit become possible. The additional electrical equipment 32 can be driven and controlled.

  As described above, according to the wire harness structure according to the present embodiment, the additional connection connector of the additional connection harness 12 is connected to the other slot 41 of the connector device 13 in which the standard connector 25 of the standard harness 11 is joined to the slot 41. By joining 33, the additional connection harness 12 provided with the additional electrical equipment 32 can be additionally connected collectively to the standard harness 11 provided with the standard electrical equipment 26.

  Accordingly, it is possible to easily add optional equipment and equipment after mass production without performing complicated connection work such as pressure welding, adhesion, or welding.

  Thereby, the difference of the mounting equipment by the difference in the grade of a vehicle can be absorbed with the connector apparatus 13, and the common part number of the standard harness 11 provided with the standard electrical equipment 26 in various vehicles can be aimed at.

  Moreover, the additional electrical equipment 32 once added can be easily removed by removing the additional connection connector 33 from the connector device 13. Thereby, compared with the case where the additional electrical equipment 32 is connected by pressure welding, adhesion | attachment, or welding which requires repair and replacement | exchange of a harness, the cost concerning repair and replacement | exchange of a harness can be reduced.

  The connector device 13 connects the power line 21A, the ground line 21B, and the communication lines 21C, 21D of the standard harness 11, and the power line 31A, the ground line 31B, and the communication lines 31C, 31D of the additional connection harness 12 to the power bus bar 90A. These are electrically connected by the ground bus bar 90B and the communication bus bars 90C and 90D, and are reduced in size as compared with the one having the control unit for controlling the standard electrical equipment 26 and the additional electrical equipment 32. be able to.

  In the connector device 13, the empty slot 41 can be protected by joining the dummy connector 40 to the empty slot 41 to which the standard connector 25 and the additional connector 33 are not joined. Specifically, it is possible to protect the tab portion 92 of the bus bar 90 protruding into the empty slot 41 and to ensure insulation between the tab portions 92.

  Further, since the connector device 13 is provided with a noise suppression member 80 made of ferrite that suppresses the generation of noise from the tab portions 92 of the communication bus bars 90C and 90D, the noise suppression member 80 allows a plurality of communication. The influence of noise between the bus bars 90C and 90D for use can be suppressed as much as possible.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, a connector of another wire harness that is normally routed in a vehicle is joined to the slot 41 of the connector device 13 to connect a power line, a ground line, and a communication line, and a power source, a ground, and a communication circuit between the harnesses Can be shared.

Here, the features of the embodiment of the wire harness structure according to the present invention described above are briefly summarized and listed in the following [1] to [3], respectively.
[1] A standard harness (11) provided with a standard electrical equipment (26) and a standard connector (25);
An additional connection harness (12) provided with an additional electrical equipment (32) and an additional connection connector (33);
A connector device (13) having a plurality of slots (41) to which the standard connector (25) and the additional connection connector (33) can be joined;
A wire harness structure for a vehicle comprising:
The standard harness (11) and the additional connection harness (12) have at least a power line (21A, 31A), a ground line (21B, 31B), and a communication line (21C, 21D, 31C, 31D), respectively.
In the connector device (13), the standard connector (25) and the additional connection connector (33) are joined to the slot (41), whereby the standard harness (11) and the additional connection harness (12). The power bus bar (90A), the ground bus bar (90B), and the communication bus bar that electrically connect the (21A, 31A), the ground wire (21B, 31B) and the communication wire (21C, 21D, 31C, 31D). (90C, 90D) The wire harness structure characterized by the above-mentioned.
[2] A dummy connector (40) is joined to the slot (41) in which the standard connector (25) and the additional connection connector (33) are not joined in the connector device (13). The wire harness structure according to [1].
[3] The standard harness (11) and the additional connection harness (12) each have a plurality of the communication lines (21C, 21D, 31C, 31D),
The connector device (13) includes a plurality of communication bus bars (90C, 90D) for electrically connecting the plurality of communication lines (21C, 21D, 31C, 31D) to each other,
[1] or [2], wherein the connector device (13) is provided with a noise suppression member (80) that suppresses generation of noise from the communication bus bar (90C, 90D). The described wire harness structure.

11: Standard harness 12: Additional connection harness 13: Connector device 21A, 31A: Power supply line 21B, 31B: Ground wire 21C, 21D, 31C, 31D: Communication line 25: Standard connector 26: Standard electrical equipment 32: Additional electrical equipment 33 : Additional connector 40: dummy connector 41: slot 80: noise suppression member 90A: power supply bus bar 90B: ground bus bar 90C, 90D: communication bus bar

Claims (3)

Standard harness with standard electrical equipment and standard connectors,
An additional connection harness provided with additional electrical equipment and an additional connection connector;
A connector device having a plurality of slots to which the standard connector and the additional connector can be joined; and
A wire harness structure for a vehicle comprising:
The standard harness and the additional connection harness each have at least a power line, a ground line, and a communication line,
In the connector device, the standard connector and the additional connection connector are joined to the slot, so that the ground wire and the communication line of the standard harness and the additional connection harness are electrically connected to each other. A wire harness structure comprising a bus bar for communication and a bus bar for communication. The wire harness structure according to claim 1, wherein a dummy connector is joined to the slot in which the standard connector and the additional connection connector in the connector device are not joined. Each of the standard harness and the additional connection harness includes a plurality of the communication lines,
The connector device includes a plurality of the communication bus bars that electrically connect the plurality of communication lines.
The wire harness structure according to claim 1, wherein the connector device is provided with a noise suppression member that suppresses generation of noise from the communication bus bar.

Images