JP6520190B2 - Wiring structure of vehicle harness - Google Patents

Description

  The present invention relates to a wiring structure of a vehicle harness, and more particularly to a wiring structure of a vehicle harness in which a harness for electrically connecting a power pack and an on-vehicle component is mounted.

A power pack serving as a power source is mounted on an electric vehicle such as a hybrid vehicle.
The power pack includes a battery module and high-voltage electrical components such as an inverter and / or a DCDC converter, or both, in a case.
Around the power pack, a harness for electrically connecting the power pack and the on-vehicle component is installed.
As such wiring arrangement structure of a harness, there exist the following prior art documents, for example.

JP, 2005-104387, A

  The drive device for a hybrid vehicle according to Patent Document 1 includes a generator and a gear case at the rear of the generator, fixes the case-side terminal block to the gear case, fixes the vehicle-side terminal block to the floor panel, and cases the vehicle-side terminal block An energizing cable disposed below and to the rear of the side terminal block, forming a reinforcement rib for forming a cable accommodation groove in the gear case, and connecting the case side terminal block and the vehicle body side terminal block to the cable accommodation groove Is housed to avoid breakage or damage of the current-carrying cable.

  However, conventionally, in a hybrid vehicle or the like on which a power pack is mounted, since the harness is exposed and disposed on the side surface of the power pack, strong impact energy (external force) acts from the side of the vehicle (vehicle lateral direction) In this case, the harness is pinched between the side surface of the power pack and the vehicle component, resulting in the disadvantage that the harness is damaged.

  Then, this invention is providing the wiring structure of the harness for vehicles which can prevent damage to a harness even when strong impact energy acts from the vehicle side.

  The present invention relates to a wiring structure for a vehicle harness including a power pack configured by stacking a plurality of units in the vertical direction and a harness for supplying power of the power pack to an on-vehicle component, the units adjacent in the vertical direction The groove portion is formed in the groove, and the harness is wound around the groove portion for wiring.

  The present invention can prevent the harness from being damaged even when strong impact energy acts from the side of the vehicle.

FIG. 1 is a plan view of a vehicle. (Example) FIG. 2 is a left side view of the vehicle. (Example) FIG. 3 is a left side view of the power pack. (Example) FIG. 4 is a cross-sectional view of the power pack taken along line IV-IV of FIG. (Example) FIG. 5 is a perspective view of a cross section of the power pack taken along line IV-IV of FIG. (Example) FIG. 6 is a schematic configuration view of a harness wiring structure. (Example)

  The present invention achieves the purpose of preventing damage to the harness even when strong impact energy is applied from the side of the vehicle by winding the harness in the groove formed in the unit adjacent in the vertical direction.

1 to 6 show an embodiment of the present invention.
As shown in FIGS. 1 and 2, an electric powered vehicle such as a hybrid vehicle (hereinafter referred to as “vehicle”) 1 includes a vehicle body 2, a vehicle body floor 3 and an instrument panel 4.
A traveling motor 5 and an inverter 6 connected to the traveling motor 5 are provided at the front of the vehicle body 2.
The left seat 7 and the right seat 8 are installed side by side in the vehicle lateral direction Y at the front of the cabin of the vehicle body floor 3 and the power pack 9 is installed between the left seat 7 and the right seat 8 . The power pack 9 is covered with a console box.

As shown in FIG. 3 and FIG. 4, the power pack 9 is formed in an elongated rectangular shape extending in the vehicle longitudinal direction X, and is formed in the same width W in the vehicle lateral direction Y sequentially from the front side To third portions 10A to 10C.
The first portion 10A is formed to have a first height HI and a first length L1. The second portion 10B is formed to have a second height H2 larger than the first height H1 and a second length L2 smaller than the first length L1. The third portion 10C is formed to have a third height H3 larger than the second height H2 and a third length L3 larger than the second length L2.
The rear end portion of the first portion 10A and the front end portion of the second portion 10B are adjacently overlapped in the vertical direction.

As shown in FIG. 3, the power pack 9 includes, for example, a case 12 including an upper case 11A, a lower case 11B, and a rear case 11C.
In the case 12, a first battery module 13 as a unit is installed at the first portion 10A. In the first battery module 13, a plurality of cells are integrally formed in a rectangular shape, and the longitudinal direction extends in the vehicle longitudinal direction X and is disposed.
Further, in the case 12, a junction box (high voltage connection portion) 14 as a unit and a service plug (high voltage circuit breaker) 15 are installed sequentially from the bottom to the top in the second portion 10 </ b> B. The junction box 14 consists of a box. The service plug 15 is disposed so as to protrude upward from the upper case 11C on the third portion 10C side.
Further, in the case 12, at the third portion 10C, the second battery module 16, the third battery module 17, and the DCDC converter 18 as a plurality of units are vertically adjacent to be overlapped in the vertical direction at the third region 10C. And the battery controller 19 is installed above the DC-DC converter 18.
Each of the second battery module 16 and the third battery module 17 has a plurality of cells integrally formed in a rectangular shape, and the longitudinal direction extends in the vehicle longitudinal direction X and is adjacently stacked in the vertical direction. Power pack 9 is configured. The DCDC converter 18 constitutes a high voltage component.
As shown in FIG. 6, the width W1 of the DCDC converter 18 is set to be smaller than the widths W2 of the second battery module 16 and the third battery module 17 in a rear view.

The power pack 9 is provided with a harness 20 electrically connected to the in-vehicle component so as to supply the electric power of the power pack 9 to the in-vehicle component (for example, the inverter 6) as shown in FIGS. .
The harness 20 in the power pack 9 includes, for example, first to sixth harnesses 21 to 26.
The first harness 21 is for high voltage and one end is connected to the upper front end of the first battery module 13 and the other end is connected to the junction box 14 and disposed along the upper portion of the first battery module 13 Be done.
The second harness 22 is for high voltage, and one end is connected to the upper rear end of the second battery module 16 and the other end is connected to the junction box 14 on the left side surface of the power pack 9, and the second It is arranged in the vehicle longitudinal direction X along the second battery module 16 and the third battery module 17 at the height position of the junction between the battery module 16 and the third battery module 17.
The third harness 23 is for high voltage, and one end of the left side surface of the power pack 9 is connected to the upper rear end of the third battery module 17 and the other end is connected to the junction box 14, and It is arranged in the vehicle longitudinal direction X along the third battery module 17 and the DCDC converter 18 at the height position of the junction between the battery module 17 and the DCDC converter 18.
The fourth harness 24 is for high voltage, and one end of the left side surface of the power pack 9 is connected to the rear end of the battery controller 19 and the other end is connected to the junction box 14 and the middle of the DCDC converter 18 It is arranged in the vehicle longitudinal direction X along the DCDC converter 18 at the height position.
The fifth harness 25 is for low voltage (for signal), and one end of the right side surface of the power pack 9 is connected to the rear end of the DCDC converter 18 and the other end is connected to the junction box 14. It is arranged in the vehicle longitudinal direction X along the second battery module 16 and the third battery module 17 at the height position of the junction between the second battery module 16 and the third battery module 17.
The sixth harness 26 is for low voltage (for signal), and one end of the right side surface of the power pack 9 is connected to the rear end of the DCDC converter 18 and the other end is connected to the junction box 14 and DCDC It is disposed in the vehicle longitudinal direction X along the DCDC converter 18 at an intermediate high position of the converter 18.
In addition, the inverter 6 is connected to the junction box 14 via another harness.

As shown in FIG. 6, the fourth harness 24 is disposed in the left gap 27 formed to be recessed in the left side surface of the DCDC converter 18. The width A1 of the left gap 27 is set larger than the diameter D1 of the fourth harness 24.
In addition, the sixth harness 26 is disposed in the right gap 28 formed to be recessed in the right side surface of the DCDC converter 18. The width A2 of the right side gap 28 is set larger than the diameter D2 of the sixth harness 26.
The fourth harness 24 and the sixth harness 26 are not exposed from both side surfaces of the power pack 9 in the vehicle left-right direction Y by being accommodated and disposed in the left side gap 27 and the right side gap 28.

In this embodiment, a groove 29 is formed in the second battery module 16, the third battery module 17, and the DCDC converter 18 as units vertically adjacent to each other.
The groove part 29 consists of the 1st-3rd groove part 30-32, as shown, for example to FIG. 5, FIG. The first groove portion 30 is formed on the left side surface of the power pack 9 at the height position of the bonding portion between the second battery module 16 and the third battery module 17. The first groove portion 30 has a first notch groove 33 formed in the upper left portion of the second battery module 16 so as to have an L-shaped cross section, and a second groove 30 formed in the lower left portion of the third battery module 17 so as to have an inverted L shape in cross section. It is formed by the notch groove 34 so as to open to the left of the vehicle. Further, the first groove portion 30 is formed in a shape that can accommodate the second harness 22.
The second harness 22 is accommodated in the first groove portion 30 and arranged so as to be covered.
The second groove portion 31 is formed on the left side surface of the power pack 9 at a height position of a portion where the third battery module 17 and the DCDC converter 18 are joined. The second groove 31 is formed to open to the left of the vehicle by a third notch groove 35 formed in an L-shaped cross section at the lower left portion of the second battery module 16 and a lower wall of the DCDC converter 18. Further, the second groove 31 is formed in a shape that can accommodate the third harness 23.
The third harness 23 is accommodated in the second groove portion 31 and arranged so as to be covered.
The third groove 32 is formed on the right side surface of the power pack 9 at a height position of a portion where the second battery module 16 and the third battery module 17 are joined. The third groove portion 32 is a fourth notch groove 36 formed in the upper right portion of the second battery module 16 so as to have an L-shaped cross section, and a fifth groove formed in the lower right portion of the third battery module 17 so as to have an inverted L shape in cross section. The notch groove 37 is formed to open to the right of the vehicle. Also, the third groove 32 is formed in a shape that can accommodate the fifth harness 25.
In the third groove portion 32, the fifth harness 25 is accommodated and routed.

In such a harness wiring structure, the second harness 22 is accommodated in the first groove 30, the third harness 23 is accommodated in the second groove 31, and the fifth harness 25 is accommodated in the third groove 32, The harnesses 22, 23, 25 are not exposed and arranged from the left and right side surfaces of the power pack 9, thereby enabling optimization of the harness wiring around the power pack 9, and Even if strong impact energy (external force) is applied from the direction), the harnesses 22, 23, 25 will not be pinched by vehicle parts (eg, seat hinges), and the impact energy to the harnesses 22, 23, 25 at that time It can be relieved to prevent damage to the harnesses 22, 23, 25.
Further, as shown in FIGS. 5 and 6, the high voltage harnesses 22, 23, 24 are collectively arranged on the left side surface of the power pack 9, and the right side surface of the power pack 9 for low voltage (for signal) By arranging the harnesses 25 and 26 collectively, the high voltage harnesses 22, 23 and 24 and the low voltage (signaling) harnesses 25 and 26 can be separated, eliminating the influence of noise (electricity). It is possible to prevent the influence of noise (electricity) from the low voltage (signal) harnesses 25 and 26 from being transmitted to the high voltage harnesses 22, 23 and 24.
Furthermore, since the harnesses 22, 23, 25 are not exposed around the power pack 9, the width of the power pack 9 can be reduced.
Further, by providing the DCDC converter 18 which easily generates heat above the third battery module 17, the heating of the third battery module 17 can be reduced and the life of the third battery module 17 can be extended.
Furthermore, the fixing structure of the second battery module 16 and the third battery module 17 and the fixing structure of the DCDC converter 18 can be made common, and the number of parts can be reduced.

  The harness wiring structure according to the present invention is applicable to various vehicles.

Reference Signs List 1 vehicle 2 vehicle body 3 vehicle floor 4 instrument panel 5 drive motor 9 power pack 10A to 10C first to third parts of battery pack 12 case 13 first battery module 14 junction box 15 service plug 16 second battery module 17 first 3 battery module 18 DCDC converter 19 battery controller 20 harnesses 21 to 26 first to sixth harnesses 27 left clearance 28 right clearance 29 grooves 30 to 32 first to third grooves

Claims (1)

A power pack installed between a first seat and a second seat aligned in the lateral direction of the vehicle in the front of the passenger compartment ;
And the harness for supplying electric power before the SL power pack to the in-vehicle parts
A wiring structure of a vehicle harness comprising,
The power pack includes a first portion, a second portion, and a third portion sequentially from the front,
A first battery module is installed at the first portion,
A junction box and a service plug are installed at the second portion,
At the third portion, the second battery module, the third battery module, and the DCDC converter are sequentially stacked from the bottom to the top,
The height of the first part is configured to be lower than the second part and the third part,
The rear end portion of the first battery module and the front end portion of the junction box are vertically adjacent to and overlapped with each other,
And between the front Symbol the second battery module and the third battery module adjacent in the vertical direction, and between the third battery module adjacent in the vertical direction and the DCDC converter, a groove portion extending in the longitudinal direction of the vehicle And a wiring structure of a vehicle harness characterized in that the harness is wound around the groove and wired.

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