JP5970962B2 - Vehicle harness support structure - Google Patents

Description

  The present invention belongs to a technical field related to a harness support structure for a vehicle including a harness support bracket having a harness support portion for supporting a harness.

  Generally, in an electric vehicle (electric vehicle), a hybrid vehicle, and the like, it is necessary to protect a battery (particularly a high voltage battery) and an electrical component such as an inverter (particularly a part through which a high voltage current flows) in the event of a vehicle collision. For example, in Patent Document 1, in a fuel cell-mounted electric vehicle, a fuel cell system constituent unit mounted under the floor is offset in the vehicle front-rear direction with respect to a vehicle body cross member arranged in the vehicle left-right direction in plan view. Are disclosed. Moreover, an electrical component such as an inverter is covered with a highly rigid exterior member so that the electrical component is not damaged at the time of a vehicle collision.

JP 2007-106361 A

  By the way, in a vehicle, many harnesses are normally routed. In particular, in an electric vehicle, a hybrid vehicle, or the like, a high voltage harness (high voltage cable) through which a high voltage current flows is provided between a battery and an electrical component, or between two electrical components (for example, an inverter and a motor). When such a harness is supported by a harness support bracket on the moving direction side of a rigid body member that receives a collision load at the time of a vehicle collision due to a space or the like, The movement can damage the harness and there is room for improvement.

  The present invention has been made in view of such a point, and an object of the present invention is to connect a harness to a harness support bracket on the moving direction side of a rigid body member that receives a collision load at the time of a vehicle collision. In the case of supporting by the above, there is an attempt to prevent damage to the harness at the time of a vehicle collision with a simple configuration.

In order to achieve the above object, according to the present invention, a harness supporting portion that supports a harness and the harness supporting portion is moved to the moving direction side of a rigid body member that receives a collision load at the time of a vehicle collision. For a harness support structure of a vehicle including a harness support bracket disposed so as to be positioned, the harness support portion of the harness support bracket is bent by the movement of the rigid body member when the vehicle collides, and the harness And the rigid body member is disposed so as to be inclined with respect to the moving direction of the rigid body member, and the harness support bracket includes: a base member fixed to the vehicle body member; A plate-like harness support member extending toward the front of the vehicle and provided with the harness support portion at the extension portion, and the rigid body portion in the harness support portion of the harness support member A plate-shaped reinforcing member that connects the surface opposite to the side bent by the movement of the base material and the base material, and the reinforcing member has a cross section cut along the extending direction of the harness supporting member. The base material and the harness support member are arranged so as to form a closed cross section .

  With the above configuration, when the rigid body member moves upon receiving a collision load at the time of a vehicle collision, the rigid body member eventually comes into contact with the harness support portion of the harness support bracket. Since the harness support portion is disposed so as to be bent by the movement of the rigid body member and interposed between the harness and the rigid body member, the harness support portion is inclined with respect to the moving direction of the rigid body member. When the member further moves, the harness support portion is bent so as to be interposed between the harness and the rigid body member. Therefore, the harness can be protected from the rigid body member by the bent harness support portion. Therefore, damage to the harness at the time of a vehicle collision can be prevented with a simple configuration.

Further, the reinforcing member secures the harness supporting rigidity of the harness supporting part and the rigidity when the worker attaches the harness to the harness supporting part, and the harness supporting part is bent by the movement of the rigid body member at the time of a vehicle collision. Can be easily done.

As described above, according to the vehicle harness support structure of the present invention, the harness support portion of the harness support bracket is bent by the movement of the rigid body member when the vehicle collides, and is interposed between the harness and the rigid body member. The harness support bracket is disposed so as to be inclined with respect to the moving direction of the rigid body member, and the harness support bracket extends to the vehicle front side from the substrate and the extended portion. A plate-like harness support member provided with the harness support part, and a surface of the harness support member opposite to the side bent by the movement of the rigid body member in the harness support part. The reinforcing member is arranged so that a cross section cut along the extending direction of the harness supporting member forms a closed cross section together with the base material and the harness supporting member. By being a simple structure, it is possible to prevent damage to the harness at the time of collision of the vehicle, the reinforcing member, when the harness support rigidity and the operator of the harness support portion mounting the harness on the harness support portion The harness support portion can be easily bent by the movement of the rigid body member at the time of a vehicle collision while ensuring the rigidity of the vehicle .

It is the perspective view seen from the vehicle front side and the upper side which shows the structure of the power unit in the motor room of the front part of the electric vehicle to which the harness support structure which concerns on embodiment of this invention was applied. It is a top view which shows the vehicle right side of the said motor room. It is the perspective view seen from the vehicle rear side and the left side which shows the positional relationship of the harness support member and bending auxiliary member of a harness support bracket. It is a top view which shows a harness support bracket. It is the side view which looked at the harness support bracket from the vehicle width direction inner side (vehicle left side). It is the front view which looked at the vehicle width direction inner side part of the harness support bracket from the vehicle front side. It is the side view seen from the vehicle width direction inner side (vehicle left side) which shows the state by which the harness support part is bent by the bending auxiliary member at the time of front collision of a vehicle. FIG. 8 is a plan view corresponding to FIG. 7.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a configuration of a power unit 71 in a motor room in a front portion of an electric vehicle (in this embodiment, an electric vehicle, hereinafter simply referred to as a vehicle) to which a harness support structure according to an embodiment of the present invention is applied. Show. Front, rear, left, right, up and down for the vehicle are simply referred to as front, back, left, right, up and down, respectively. 1 to 5, 7 and 8, the vehicle front side is indicated by an arrow Fr.

  A pair of left and right front side frames 8 are disposed at both ends of the motor room in the vehicle width direction so as to extend in the front-rear direction. A power unit 71 for driving the vehicle is disposed between the left and right front side frames 8. The suspension tower 5 is attached and fixed to the rear side portion of the front side frame 8 relative to the power unit 71.

  The rear portion of each front side frame 8 is a kick portion whose height position gradually decreases toward the rear side. A dash panel 6 that partitions the motor room and the passenger compartment is provided at the front and rear positions corresponding to the kick portion. A reinforcement 6a extending in the vehicle width direction is provided at the center in the vertical direction of the dash panel 6, and both ends of the reinforcement 6a are connected to the left and right front side frames 8, respectively.

  The power unit 71 includes a motor unit 72 including a motor, and a transaxle 73 including a power transmission mechanism (a reduction mechanism and a differential mechanism) for transmitting the driving force of the motor of the motor unit 72 to the front wheels. Are joined together so as to line up. The shaft center of the power unit 71 as a whole extends in the vehicle width direction. In the present embodiment, the transaxle 73 is located on the left side of the motor unit 72.

  The motor unit 72 includes a substantially cylindrical motor housing 72a whose axis extends in the vehicle width direction, and the motor is disposed in the motor housing 72a. The motor is a three-phase AC motor, and three coils of U phase, V phase and W phase are commonly connected to the neutral point. The coils of each phase are configured such that a plurality of windings are connected in series, and the number of windings through which current flows in the coils of each phase can be changed. That is, the motor is capable of switching windings, and the optimal number of windings through which current flows is determined according to the running state of the vehicle. This winding switching is performed by a motor winding switching unit 77 described later.

  A bearing unit 74 is integrally coupled to an end portion of the motor unit 72 on the right side (the side opposite to the transaxle 73). The bearing unit 74 includes a substantially cylindrical bearing housing 74a coupled to the motor housing 72a, and a bearing (illustrated) disposed in the bearing housing 74a and rotatably supporting the right end portion of the rotation shaft of the motor. (Omitted). On the other hand, the left end portion (right side in FIG. 1) of the rotation shaft of the motor is rotatably supported by a bearing provided at the left end portion of the motor housing 72a. The rotation shaft of this motor is connected to the input shaft of transaxle 73 (deceleration mechanism).

  The transaxle 73 has an axle housing 73a, and a right end portion of the axle housing 73a and a left end portion of the motor housing 72a are coupled by a plurality of bolts 75 to form a coupling portion 76. The coupling portion 76 has a larger diameter than the left and right portions.

  The axle housing 73a includes a speed reduction mechanism accommodation portion 73b that accommodates a speed reduction mechanism, and a differential mechanism accommodation portion 73c that accommodates a differential mechanism to which the driving force of the motor is transmitted from the speed reduction mechanism. The differential mechanism accommodation portion 73c is located on the rear side of the speed reduction mechanism accommodation portion 73b. Then, two joint shafts (not shown) are provided to the left and right sides as the output shaft of the transaxle 73 (differential mechanism) from the left and right side surfaces of the differential mechanism housing portion 73c. It extends. Although illustration is omitted, the left joint shaft is connected to the left drive shaft connected to the left front wheel, and the right joint shaft is connected to the right drive shaft connected to the right front wheel.

  A motor winding switching unit 77 is integrally coupled to the right end (opposite side of the motor unit 72) of the bearing unit 74. In this embodiment, in addition to the motor unit 72 and the transaxle 73, the power unit 71 is integrally coupled so that the bearing unit 74 and the motor winding switching unit 77 are aligned in the vehicle width direction. Note that the entire motor unit 72, bearing unit 74, and motor winding switching unit 77 can be regarded as a motor unit in a broad sense.

  The motor winding switching unit 77 includes a substantially cylindrical winding switching case 77a having an axial center extending in the vehicle width direction (left and right direction) and opening on both sides in the axial direction, and a right opening in the winding switching case 77a. And a circuit for switching the winding of the motor, which is disposed in the winding switching case 77a. The closing member 77b is fixed to the peripheral edge of the opening on the right end surface of the winding switching case 77a by a bolt. The left end of the winding switching case 77a is coupled to the right end of the bearing housing 74a, and the left opening of the winding switching case 77a is closed by the bearing housing 74a.

  A reinforcing portion 77c that protrudes upward is provided on the upper portion of the winding switching case 77a. The upward protrusion amount of the reinforcing portion 77c is increased toward the right side, and the upper surface of the reinforcing portion 77c is inclined upward toward the right side.

  An upper portion of the bearing housing 74a is provided with a protruding portion 74b that protrudes upward, and a reinforcing portion 74c that extends so as to protrude rightward from the right end surface of the protruding portion 74b. The protruding portion 74b is fastened and fixed to the upper portion of the motor housing 72a, whereby the left end portion of the reinforcing portion 74c is fastened and fixed to the motor housing 72a via the protruding portion 74b. The right end portion of the reinforcing portion 74c is coupled to the left end portion of the reinforcing portion 77c in the upper part of the winding switching case 77a. The right end portion of the reinforcing portion 77c is coupled to an upper portion of a support structure portion 78 described later, whereby the reinforcing portion 77c, the reinforcing portion 74c, and the protruding portion 74b serve to reinforce the upper portion of the support structure portion 78. Have. That is, the reinforcement part 77c, the reinforcement part 74c, and the protrusion part 74b comprise the integrated highly rigid part, and the upper part of the support structure part 78 is reinforced by this highly rigid part.

  A support structure portion 78 that protrudes upward on the right front side frame 8 side is integrally provided on the upper portion of the closing member 77b. The support structure 78 includes a front side wall portion 78a and a rear side wall portion 78b (see FIG. 3) that protrude from the base end portion connected to the upper portion of the right side surface of the closing member 77b to the right side, and the front side wall portion. It has the upper wall part 78c which connects the upper end parts of the part 78a and the rear side wall part 78b. The front side wall part 78a and the rear side wall part 78b are spaced apart from each other in the front-rear direction, and the front-rear direction distance between the front side wall part 78a and the rear side wall part 78b increases toward the lower side. Has been made.

  The upper surface of the support structure portion 78 (the upper surface of the upper wall portion 78c) is positioned above the upper end of the closing member 77b, and the upper end portion of the mount main body of the right mount device 89 described later (the power unit side bracket 93 described later). Is located at substantially the same height position as the portion connected to. Further, the right end surface of the support structure portion 78 (the right end surface of the upper wall portion 78c) is positioned close to the mount body of the right mount device 89 described later (the first vehicle body side provided so as to cover the periphery of the mount body). (Position close to the bracket 98).

  An upper extending wall portion (not shown) extending upward from the upper end of the closing member 77b is provided between the front side wall portion 78a and the rear side wall portion 78b, and the front side end of the upper extending wall portion is provided. The rear end portion and the upper end portion are connected to the front side wall portion 78a, the rear side wall portion 78b, and the upper wall portion 78c, respectively. The upper extending wall portion is fixed to the right end portion of the reinforcing portion 77c. As a result, the upper extending wall portion is coupled to the motor housing 72a via the reinforcing portion 77c, the reinforcing portion 74c, and the protruding portion 74b.

  The motor housing 72a, the axle housing 73a, the bearing housing 74a, the winding switching case 77a, the closing member 77b, and the support structure 78 of the power unit 71 can be regarded as rigid body members.

  The left and right ends of the power unit 71 are mounted and supported (elastically supported) on the left and right front side frames 8 via left and right mounting devices 88 and 89, respectively. The left mount device 88 is disposed between the power unit side bracket 90 fixed to the upper portion of the axle housing 73a of the transaxle 73, the vehicle body side bracket 91 fixed to the left front side frame 8, and the brackets 90, 91. And a mount body (not shown) including a rubber bush.

  The right mounting device 89 is disposed between the power unit side bracket 93, the vehicle body side bracket 94, and both the brackets 93, 94 (specifically, between the power unit side bracket 93 and a first vehicle body side bracket 98 described later). And a mount body (not shown) including a rubber bush.

  The power unit side bracket 93 extends substantially horizontally in the vehicle width direction, the right end is connected to the upper end of the mount body via a fastening member 96 (bolts and nuts), and the left end is a fastening member 97. It is fastened and fixed to the upper surface of the upper wall portion 78c of the support structure portion 78 via (bolts and nuts). As a result, the right mounting device 89 mounts and supports the upper portion of the closing member 77 b on the right front side frame 8 via the support structure 78.

  The vehicle body side bracket 94 is coupled to the first vehicle body side bracket 98 connected to the mount body, the first vehicle body side bracket 98 and the fastening member 100 (bolts and nuts), and is connected to the right front side frame 8. The second vehicle body side bracket 99 is fixed.

  The first vehicle body side bracket 98 is provided so as to cover the periphery of the mount body. An upper connecting portion 98 a that is fastened and fixed to an upper portion of the second vehicle body side bracket 99 is provided on the upper portion of the first vehicle body side bracket 98, and a second vehicle body side bracket 99 is provided on the lower portion of the first vehicle body side bracket 98. Two lower connecting portions 98b are provided to be fastened and fixed to the lower portion.

  At the time of a frontal collision of the vehicle, the entire power unit 71 is moved backward by receiving a collision load. That is, the power unit side bracket 90 of the left mounting device 88 and the power unit side bracket 93 of the right mounting device 89 are broken at the middle portion in the vehicle width direction due to a collision load of a predetermined value or more. However, the left and right mounting devices 88 and 89 move backward more backward with respect to the mount main body and the vehicle body side brackets 91 and 94 (see FIGS. 7 and 8).

  As shown by a two-dot chain line in FIG. 1, an inverter 31 (see also FIG. 2) and an in-vehicle charger 32 are disposed above the power unit 71 in the motor room. A high-voltage main battery (not shown) for driving the motor of the motor unit 72 is disposed below the passenger compartment floor.

  The inverter 31 converts DC power from the main battery into AC power and supplies power to the motor. This inverter 31 has a substantially rectangular box-shaped inverter case 31a and an inverter circuit accommodated in the inverter case 31a, and a portion of the power unit 71 extending from the motor unit 72 to the motor winding switching unit 77. Located on the upper side.

  The on-vehicle charger 32 is used to charge the main battery by inputting power from a power source external to the vehicle (in this embodiment, a household power source of 100 V or 200 V). This in-vehicle charger 32 has a substantially rectangular box-like charger case 32 a similar to the inverter 31 and a charging circuit accommodated in the charger case 32 a and is located above the transaxle 73. ing.

  The inverter 31 and the main battery are connected to each other via two first harnesses (cables) 35 (a part of which is shown in FIG. 2), and the inverter 31 and the bearing unit 74 include three second Are connected via a harness (cable) 36. That is, the inverter 31 receives DC power from the main battery via the first harness 35, converts the DC power into AC power, and then converts the AC power to the second harness 36 and the unit (motor winding). The electric power is supplied to the motor of the motor unit 72 through wires (not shown) arranged in the line switching unit 77, the bearing unit 74, and the motor unit 72). The first and second harnesses 35 and 36 correspond to a high voltage harness through which a high voltage current flows. In the present embodiment, the “high voltage” is a voltage exceeding 60 V and 1500 V or less for direct current, and a voltage exceeding 30 V (effective value) and 1000 V (effective value) or less for alternating current.

  The first harness 35 extends from the connection terminal (located at the center in the vehicle width direction of the vehicle) provided on the main battery to the front side through the approximate center in the vehicle width direction of the vehicle and into the motor room. And extends upward in the space between the dash panel 6 and the power unit 71 (motor unit 72), then bends to the right, extends to the right, and extends rightward while extending forward at the upper position of the right front side frame 8. It makes a U-turn leftward and is connected to the front portion of the right side surface of the inverter case 31a.

  As shown in FIG. 2, immediately after the second harness 36 extends rightward from the rear side portion of the right side surface of the inverter case 31a, the second harness 36 U-turns from right to left while extending rearward and downward. After being bent into a U-shape and extending to the left side of the harness connecting portion (not shown) provided on the rear surface of the bearing housing 74 at the rear side position of the upper part of the winding switching case 77a and the bearing housing 74, While descending to the side, a loop is formed on the rear side toward the harness connecting portion. The second harness 36 enters the motor housing 72 a of the motor unit 72 and the winding switching case 77 a of the motor winding switching unit 77 from the harness connecting portion.

  2 and 3, the second harness 36 is supported by the right front side frame 8 via the harness support bracket 21 (in FIG. 1, the description of the harness support bracket 21 is omitted). ing). As shown in FIGS. 4 to 6, the harness support bracket 21 includes a base member 22 fixed to the rear side of a portion where the second vehicle body side bracket 99 is fixed in the right front side frame 8 which is a vehicle body member. A harness that extends from the base material 22 (specifically, a front end portion of a longitudinally extending portion described later) to the front side and the left side in a cantilevered manner and supports the three second harnesses 36 in the extended portion. It has a plate-like harness support member 23 provided with a support portion 23 a and a plate-like reinforcement member 24 that reinforces the harness support member 23.

  The base material 22 includes a front-rear extension portion 22a extending in the front-rear direction on the left side (in the vehicle width direction) of the right front side frame 8, and right and left ends extending from the front and rear ends of the front-rear extension portion 22a. The front side frame 8 includes front and rear side fixing portions 22b and 22c that are fixed to the front side frame 8 via fastening members 51 (bolts and nuts). Both ends in the width direction of the front-rear extending portion 22a and the front and rear fixing portions 22b, 22c are bent upward so that the rigidity of the base material 22 is increased.

  The base end portion of the harness support member 23 is welded and fixed to the front end portion of the upper surface of the front and rear extension portion 22a of the base material 22 so that the distal end side can be bent and deformed in the vertical direction with respect to the base end portion. It has become. However, the reinforcing member 24 secures the harness support rigidity of the harness support portion 23a and the rigidity when the operator attaches the second harness 36 to the harness support portion 23a, and a large load such as at the time of a vehicle collision acts. In the normal state of not performing, the distal end side of the harness support portion 23a is not deformed.

  The harness support member 23 further includes a rising portion 23b (see FIG. 6) that rises upward in the vicinity of the base end portion, and a bent portion 23c that is bent so as to extend forward and leftward from the upper end of the rising portion 23b. The distal end side from the bent portion 23c is a harness support portion 23a. The rising portion 23b and the bent portion 23c are inclined rearward toward the left side in a plan view. The harness support part 23a extends from the bent part 23c to the front side and the left side, and the front end of the harness support part 23a is a rear side wall part 78b of the support structure part 78 (specifically, a bending described later provided on the rear side wall part 78b). It is located in the vicinity of the rear side of the auxiliary member 27). The harness support portion 23a is formed in such a shape that its left end extends in the front-rear direction, and is inclined upward toward the front side. For this reason, the rising amount of the rising portion 23b increases toward the front side. In addition, the front-back extension part 22a of the base material 22 may be provided on the left side, and the harness support member 23 may extend straight from the front end part of the front-rear extension part 22a to the front side. In this case, the rising portion 23b and the bent portion 23c extend in the vehicle width direction in plan view, and the harness support portion 23a extends straight from the rising portion 23c to the front side.

  The harness support portion 23a has engagement protrusions (not shown) provided on the clips 26 (see FIG. 3) for fixing the three second harnesses 36 to the upper surface of the harness support portion 23a. The mating clip holes 23d are formed side by side in the front-rear direction. Although the detailed illustration of the clip 26 is omitted, the upper and lower halves sandwich the second harness 36, and the upper and lower halves are configured to be detachable. On the lower surface of the lower half-divided body, the above-described engaging protrusion is formed to engage with the clip hole 23d. By supporting and fixing the second harness 36 on the upper surface of the harness support portion 23a, a portion (bent in the above U shape) from the portion sandwiched between the clips 26 in the second harness 36 to the end portion on the inverter case 31a side. The shape of the part is stabilized.

  The harness support portion 23 a is located on the rear side of the rear side wall portion 78 b of the support structure portion 78. That is, the harness support bracket 21 is positioned such that the harness support portion 23a is located on the rear side of the rear side wall portion 78b (that is, on the moving direction side of the rigid body member that receives a collision load during a frontal collision of the vehicle). It is arranged.

  The reinforcing member 24 is located on the lower side of the harness support member 23, and the lower surface of the harness support portion 23 a (the surface opposite to the side bent by the backward movement of the power unit 71 as will be described later) and the base material 22. The lower surface of the front-rear extension part 22a is connected. That is, the reinforcing member 24 extends from the one end portion welded and fixed to the front end portion of the bottom surface of the front and rear extension portion 22a of the base material 22 to the same front side and the left side as the harness support member 23 in plan view, and the other end portion is It is fixed to the lower surface of the harness support portion 23a by welding. The intermediate portion in the length direction of the reinforcing member 24 is gradually moved closer to the lower surface of the harness support portion 23a by inclining upward toward the other end side. A gap is formed between the longitudinal direction intermediate portion of the reinforcing member 24 and the rising portion 23b and the harness supporting portion 23a of the harness supporting member 23. Thus, the reinforcing member 24 extends in the extending direction of the harness supporting member 23. The cross section cut along (in a plan view, a direction substantially perpendicular to the bent portion 23 c) is disposed so as to form a closed cross section together with the base material 22 and the harness support member 23. With this configuration, the reinforcing member 24 secures the harness support rigidity of the harness support portion 23a and the rigidity when the operator attaches the second harness 36 to the harness support portion 23a, and at the time of a frontal collision of the vehicle. As will be described later, the harness support portion 23a can be easily bent by the backward movement of the power unit 71.

As described above, when the harness support member 23 extends straight from the front end portion of the front-rear extension portion 22a of the base member 22 to the front side, the reinforcing member 24 also extends from the front end portion of the front-rear extension portion 22a. It is preferable to extend straight forward. Again, the reinforcing member 24, the extending direction (i.e. longitudinal direction) cross section taken along the harness support member 23, Ru is arranged so as to form a closed cross section together with the base member 22 and the harness supporter 23.

  The power support unit 23a is bent by the backward movement of the power unit 71 at the time of a frontal collision of the vehicle and is interposed between the second harness 36 and the power unit 71 (the rear side wall part 78b of the support structure 78). 71 (support structure portion 78) is disposed to be inclined with respect to the moving direction. That is, when the rear side wall portion 78b (specifically, the bending auxiliary member 27 described later) of the support structure portion 78 of the power unit 71 that moves backward to the rear side comes into contact with the front end of the harness support portion 23a, the harness support portion 23a is Inclined so that the front side is on the upper side with respect to the horizontal so that it is bent upward and interposed between the second harness 36 and the rear side wall 78b (bending assisting member 27) of the support structure 78. ing. That is, the harness support portion 23a is inclined upward (inclined downward toward the rear) toward the front side.

  Here, the relationship between the harness support portion 23a and the vertical space of the second harness 36 supported by the harness support portion 23a, and the workability when the operator attaches the second harness 36 to the harness support portion 23a. In consideration, it is preferable that the angle of inclination of the harness support portion 23a with respect to the horizontal is small. On the other hand, from the viewpoint of reliably bending the harness support portion 23a upward by the backward movement of the power unit 71, it is preferable that the inclination angle is large. Therefore, in order to ensure that the harness support portion 23a bends upward even if the inclination angle of the harness support portion 23a is small, the rear surface of the rear side wall portion 78b of the support structure portion 78 is rearward toward the lower side. It is preferable to incline. In the present embodiment, a bending auxiliary member 27 is provided on the rear surface of the rear side wall portion 78b of the support structure portion 78, and the harness support portion 23a is bent upward by a first contact portion 27b described later of the bending auxiliary member 27. Therefore, it is not necessary to incline the rear surface of the rear side wall portion 78b, but in order to prevent deformation of the bending assisting member 27 (specifically, the first contact portion 27b), the rear surface of the rear side wall portion 78b is It is made to incline so that the bending auxiliary member 27 (1st contact part 27b) may be met. The bending auxiliary member 27 is not always necessary.

  The bending auxiliary member 27 is connected to the rear surface of the rear side wall portion 78b of the support structure portion 78 via a fastening member 52 (bolts and nuts), and is connected to the right side of the fixing portion 27a and is connected to the harness. A first abutting portion 27b located on the front side of the support portion 23a, and a rear side of the power unit side bracket 93 (which breaks at the time of a frontal collision of the vehicle as will be described later) connected to the upper side of the first abutting portion 27b. And a second contact portion 27c. As will be described later, when the power unit 71 moves backward in the frontal collision of the vehicle, the first contact portion 27b contacts the front end of the harness support portion 23a and bends the front end portion of the harness support portion 23a upward (see FIG. 7 and FIG. 8). When the harness support portion 23a is greatly bent, the second contact portion 27c comes into contact with the bent harness support portion 23a.

  The first abutment portion 27b is inclined rearward toward the lower side in order to ensure that the harness support portion 23a bends upward even if the inclination angle of the harness support portion 23a is small. The second abutting portion serves to protect the second harness 36 from the broken power unit side bracket 93 by interposing the harness support portion 23a between the second harness 36 and the broken power unit side bracket 93. It has and extends in the vertical direction. The second abutting portion 27c does not need to be inclined like the first abutting portion 27b because the harness support portion 23a that has already been largely bent contacts.

  When the power unit 71 moves backward in response to a collision load at the time of a frontal collision of the vehicle, the first contact portion 27b of the bending auxiliary member 27 provided on the rear side wall portion 78b of the support structure portion 78 of the power unit 71 eventually supports the harness. It abuts against the front end of the harness support portion 23a of the bracket 21. When the power unit 71 (bending auxiliary member 27) further moves backward, the harness support portion 23a is interposed between the second harness 36 and the power unit 71 (first contact portion 27b of the bending auxiliary member 27). (See FIGS. 7 and 8). When the power unit 71 (the bending assisting member 27) further moves backward, the harness support portion 23a is further bent upward by the first contact portion 27b and the second contact portion 27c, and the harness support portion 23a becomes the second harness. 36 and between the broken power unit side bracket 93. As a result, the second harness 36 is protected from the power unit 71 by the harness support portion 23a bent upward. In particular, in the present embodiment, the power unit side bracket 93 is broken at the intermediate portion in the vehicle width direction at the time of a frontal collision. Therefore, when the fracture surface of the power unit side bracket 93 contacts the second harness 36, the second harness 36 is used. May be damaged, but the broken support surface does not come into contact with the second harness 36 by the harness support portion 23a.

  In the present embodiment, the second harness 36 is lifted upward by the harness support part 23a bent upward. Accordingly, the second harness 36 does not come into contact with the first vehicle body side bracket 98 of the right mounting device 89 that moves backward due to the deformation of the right front side frame 8 due to the collision load. As a result, even if the second harness 36 is cracked by the collision load, the second harness 36 is not damaged at the cracked portion. Therefore, it is possible to prevent the second harness 36 from being damaged during a frontal collision of the vehicle with a simple configuration.

  The present invention is not limited to the embodiment described above, and can be substituted without departing from the spirit of the claims.

For example, in the above embodiment, the second harness 36 is supported and fixed to the upper surface of the harness support portion 23a of the harness support member 23 of the harness support bracket 21, and the harness support portion 23a is moved upward (that is, the harness is supported). The second harness 36 can be supported and fixed to the lower surface of the harness support portion 23a. In this case, the harness supporting portion 23a may be inclined downward (to the side where the harness is supported) toward the front side. When the bending auxiliary member 27 is provided, the first contact of the bending auxiliary member 27 is performed. The portion may be inclined rearward toward the upper side. Alternatively, the harness support portion 23a is configured such that the distal end side thereof can be bent and deformed in the vehicle width direction with respect to the base end portion, and the second harness 36 is formed on the surface of the harness support portion 23a on one side or the other side. It is also possible to support and fix. In this case, the harness support part 23a may be inclined toward the front side where the harness is supported. In short, the harness support portion 23a is inclined with respect to the backward movement direction of the power unit 71 so that it is bent by the backward movement of the power unit 71 and interposed between the second harness 36 and the power unit 71 at the time of a frontal collision of the vehicle. Just do it .

  Furthermore, in the said embodiment, although the example which applied this invention to the harness support bracket 21 which has the harness support part 23a which supports the 2nd harness 36 which is a high voltage harness was shown, the 1st harness 35, The present invention can also be applied to a harness support bracket having a harness support portion that supports a harness other than the high voltage harness.

  Furthermore, in the said embodiment, the example which applied this invention to the harness support bracket 21 in which the harness support part 23a is located in this back movement direction side (rear side) of the power unit 71 which moves back at the time of front collision of a vehicle is shown. However, the harness support bracket in which the harness support portion is located on the backward movement direction side of the other rigid body member, or the harness on the movement direction side of the rigid body member that receives the collision load at the time of a side collision or rear collision of the vehicle. The present invention can also be applied to a harness support bracket where the support portion is located.

  The above-described embodiments are merely examples, and the scope of the present invention should not be interpreted in a limited manner. The scope of the present invention is defined by the scope of the claims, and all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

  The present invention has a harness supporting portion that supports a harness, and the harness supporting portion is disposed so as to be positioned on the moving direction side of a rigid body member that receives a collision load when the vehicle collides. This is useful for a vehicle harness support structure including a support bracket.

DESCRIPTION OF SYMBOLS 21 Harness support bracket 22 Base material 23 Harness support member 23a Harness support part 24 Reinforcement member 36 2nd harness (harness supported by a harness support part)
78 Support structure (rigid body member)

Claims (1)

A harness support bracket having a harness support portion for supporting a harness and disposed so that the harness support portion is positioned on the moving direction side of a rigid body member that receives a collision load at the time of a vehicle collision and moves. Vehicle harness support structure,
The harness support portion of the harness support bracket is bent with respect to the movement direction of the rigid body member so as to be bent by the movement of the rigid body member and to be interposed between the harness and the rigid body member when the vehicle collides. Inclined and arranged,
The harness support bracket includes a base material fixed to a vehicle body member, a plate-like harness support member extending from the base material to the vehicle front side and provided with the harness support portion at the extended portion, and the harness support It is composed of a plate-like reinforcing member that connects the base and the surface opposite to the side bent by the movement of the rigid body member in the harness support portion of the member,
The vehicle harness support structure according to claim 1, wherein the reinforcing member is disposed such that a cross section cut along the extending direction of the harness support member forms a closed cross section together with the base material and the harness support member.

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