JP2007276648A - Heavy loaded article supporting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heavy loaded article supporting structure capable of miniaturizing a mount member, and realizing the efficient storage in a driving source mounting compartment. <P>SOLUTION: In the heavy loaded article supporting structure, an inverter 2 connected to a motor is arranged above a trans-axle TA mounted on a driving source mounting compartment ER, and supported by a mount bracket 4 coupled with a vehicle body 1 on the side of the driving source mounting compartment ER. The mount bracket 4 is formed to support the inverter 2 in a forwardly inclined condition, and a reinforcing member 6 extending from a lower side of a supporting part 43 and coupling the supporting part 43 with a vehicle body coupling part 41 in a bracing manner is provided on the mount bracket 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a heavy load support structure for a drive source mounting room.

  Conventionally, an automobile having a motor as a drive source, that is, an automobile generally called an electric vehicle or a hybrid vehicle is known.

  An automobile having such a motor is equipped with, for example, a heavy load such as an inverter used for controlling driving of the motor, and this inverter is mounted in a drive source mounting room together with a drive source. (For example, refer to Patent Document 1).

  The inverter is housed in a box-like case so that it can be protected mechanically and thermally, and is provided with a cooling function. Therefore, the inverter has a relatively large volume and is important.

In the technique described in Patent Document 1, this inverter is cantilevered by a mount bracket coupled to a side member that is a skeleton member of a vehicle body, and is supported in a space close to the motor in a space above the motor. .
JP 2000-255282 A

  However, in the above-described prior art, the mount member cantilever-supports a heavy load such as an inverter that is heavier, so that the mount member becomes large and the drive source mounting room has a limited volume. It was a hindrance to efficient accommodation with the load.

  The present invention has been made paying attention to the above-described conventional problems, and provides a heavy load support structure capable of reducing the size of a mount member and efficiently accommodating it in a drive source mounting room. It is intended to do.

  In order to achieve the above object, according to the present invention, a heavy load is supported in a drive source mounting room by a mount bracket coupled to a vehicle body in a state of being disposed above the front part of the mounted component, and the mount bracket is attached to the vehicle body. A heavy load support structure comprising a combined vehicle body connection portion and a support portion for supporting a heavy load, wherein the mount bracket supports the heavy load in a forward inclined state where the heavy load is lowered to the front of the vehicle. The weight load is characterized in that the mount bracket is provided with a reinforcing member extending from the lower surface of the support portion and connecting the support portion and the vehicle body coupling portion or the vehicle body in a brace form. A support structure was adopted.

  In the heavy load support structure of the present invention, since the reinforcing member is provided in a bracing state across the support portion of the mount bracket and the coupling portion or the vehicle body, compared to the case where the reinforcing member is not provided, The support portion and the coupling portion can be reduced in size.

  In addition, since the heavy load is supported in a forwardly inclined state, the space with the mounted component disposed below the heavy load can be reduced.

  In this way, efficient mounting can be achieved by downsizing the mounting bracket and narrowing the distance between the mounting bracket and the mounted component.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the heavy load support structure of this embodiment, the heavy load (2) is placed in the drive source mounting room (ER) above the front part of the mounted component (TA) mounted in the drive source mounting room (ER). The mounting bracket (4) is supported by a mounting bracket (4) coupled to the vehicle body (1) forming the drive source mounting room (ER) in the disposed state, and the mounting bracket (4) is coupled to the vehicle body (1). A vehicle body coupling portion (41), and a support portion (43) extending from the vehicle body coupling portion (41) toward the inside of the drive source mounting room (ER) and supporting the heavy load (2); The mount bracket (4) is formed so as to support the heavy load (2) in a forward-tilting state in which the load load is lowered to the front of the vehicle, and the mount bracket (4) Extending from the lower surface (43) of the support part The support portion (43), the body coupling portion (41) or the body (1) reinforcing member (6) that binds to the brace-shaped and are provided.

  Based on FIGS. 1-8, the heavy load support structure of Example 1 of the best embodiment of this invention is demonstrated.

As shown in FIG. 1, the heavy load support structure of the first embodiment has an inverter (in the drive source mounting room ER provided in the front portion of the vehicle body 1 (the arrow FR indicates the front of the vehicle in each drawing)) ( It is applied to support of heavy load) 2.

  The drive source mounting room ER includes a hood ridge panel 11 (the hood ridge panel on the right side of the vehicle is not shown) provided at both left and right ends in the vehicle width direction, a dash panel 12 at the rear of the vehicle, It is surrounded by a radiator core support panel 13 in front of the vehicle. And drive unit PU (refer FIG. 2) is accommodated in the drive source mounting room ER.

  The drive unit PU includes an engine, a motor, and a transaxle TA (see FIG. 2) that are not shown in the figure that are continuously arranged in the vehicle width direction, and switches the power from the engine and the motor according to the driving conditions of the vehicle. It can be taken out.

  Furthermore, the drive source mounting room ER accommodates an inverter 2 that electrically controls driving of a motor (not shown). As shown in FIG. 1, the inverter 2 is housed in a casing 21 formed in a substantially rectangular parallelepiped box shape so as to be protected mechanically and thermally, and is provided at the rear portion of the vehicle body 1 via a harness 3. It is connected to a battery not shown.

  Further, as shown in FIGS. 2 and 4, the inverter 2 is disposed above the front vehicle on the left side of the transaxle TA of the drive unit PU, and has a front end on the left side in the vehicle width direction of the transaxle TA. It arrange | positions so that it may overlap with a vehicle up-down direction.

  The inverter 2 is supported on the vehicle body 1 by a mount bracket 4 and a connection bracket 5.

  The connection bracket 5 is connected to the front upper part of the inverter 2 and the upper part of the radiator core support panel 13.

  As shown in FIG. 3, the mount bracket 4 is coupled to the side member 14. The side member 14 is a strength skeleton member of the vehicle body formed in a cylindrical shape as shown in the figure, and is coupled to the lower portion of the hood ridge panel 11 and extends in the vehicle front-rear direction (FIG. 1). reference).

  The mount bracket 4 has a corner between the vehicle body coupling portion 41 coupled to the side member 14 and the vehicle body coupling portion 41 extending from the vehicle body coupling portion 41 inward of the drive source mounting room ER. A support portion 43 that is formed integrally with the vehicle body coupling portion 41 is formed.

  The support part 43 supports the lower part of the inverter 2 and is formed in a substantially rectangular outer shape when viewed from above, and as shown in FIG. It is formed to do.

  That is, as shown in FIG. 3, the support portion 43 is formed with three frame portions 43a, 43b, 43c extending in the vehicle width direction in the vehicle front-rear direction. Each of the skeleton parts 43a, 43b, and 43c is formed with high rigidity by performing bending processing and raising the flanges 43d and 43e so as to have a corner part. The support surfaces 43f, 43g, and 43h of the inverter 2 in the skeleton portions 43a, 43b, and 43c are arranged so as to be positioned lower on the vehicle front side, so that the inverter 2 is supported in a forward inclined state. ing.

  As shown in FIG. 4, the vehicle body coupling portion 41 includes a front coupling portion 45 located at an end portion on the vehicle front side and a rear coupling portion 46 located at an end portion on the vehicle rear side. 45 and 46 are connected to each other by fastening them to side members using fastening means 48 such as bolts and nuts.

  That is, as shown in FIG. 3, the front coupling portion 45 is an upper flange portion 45 a disposed along the upper surface 14 a of the side member 14 and extends downward from the end portion of the upper flange portion 45 a toward the vehicle. And a horizontal flange portion 45 b disposed along the side surface 14 b of the side member 14. The flange portions 45 a and 45 b are fastened to the side member 14.

  Further, the horizontal flange portion 45 b is formed with a column portion 45 c having a box cross-sectional shape protruding in a direction away from the side surface 14 b of the side member 14. As shown in FIG. 5, the column portion 45c has a rear wall 45d disposed on the rear side of the vehicle, and a curved surface portion 45e that is recessed in a substantially arc shape forward of the vehicle is formed on the rear wall 45d. Has been.

  Although detailed illustration is omitted, the rear coupling portion 46 includes a substantially L-shaped flange portion as viewed from the front of the vehicle, like the front coupling portion 45, and these are coupled to the side member 14 by the fastening means 48. Yes. FIG. 4 shows a coupling flange 46 a that is coupled to the side surface of the side member 14.

  Further, in the mount bracket 4, among the corner portions 42 formed between the vehicle body coupling portion 41 and the support portion 43, the front coupling portion 45 and the skeleton portion 43 c are arranged at the portion between the front coupling portion 45 and the skeleton portion 43 a. In between, the substantially triangular space 47 is formed as viewed from the front of the vehicle, and the reinforcing member 6 is provided in a brace shape. That is, as shown in FIG. 6, the lower end portion of the reinforcing member 6 is coupled to the lower end portion of the column portion 45 c of the front coupling portion 45 by the fastening means 61, while the upper end portion of the reinforcing member 6 is coupled to the support portion 43. The fastening means 62 is connected to the vicinity of the tip of the skeleton 43a.

  The position where the reinforcing member 6 is provided is a position overlapping the transaxle TA in the vehicle width direction.

  Further, as shown in FIGS. 7 and 8, the reinforcing member 6 is formed in a substantially U-shaped cross section in which the flanges 6 a and 6 a are raised in the direction opposite to the space portion 47. The flanges 43d and 43e formed on the skeleton part 43a are also raised upward in the direction opposite to the space part 47.

  Furthermore, a harness 3 as a cord-like member for connecting the inverter 2 and a battery outside the figure is connected to the side surface of the inverter 2 as shown in FIG. The harness 3 is routed between the transaxle TA and the hood ridge panel 11 and rearward of the vehicle, and is routed along the dash panel 12 in the vehicle width direction.

  In wiring the harness 3 in this way, between the transaxle TA and the hood ridge panel 11, the harness 3 is once guided toward the front of the vehicle and formed between the mount bracket 4 and the reinforcing member 6. The space 47 is led to the lower end of the side member 14, and is then routed along the side member 14 to the rear of the vehicle.

  The harness 3 is fixed to the vehicle body 1 using the clip 30 and is also fixed to the mount bracket 4 using the clips 30a, 30b, 30c, and 30d. That is, as shown in FIG. 8, the clip 30a is fixed to the distal end portion of the support portion 43, the clip 30b is fixed to the flange 43d of the skeleton portion 43a, and the clip 30c is fixed to the lower surface of the skeleton portion 43a ( 7), the clip 30d is fixed to the lower end of the front coupling portion 45.

Next, the operation of the first embodiment will be described.
In mounting the inverter 2, first, the vehicle body coupling portion 41 of the mount bracket 4 is fastened to the side member 14 by the fastening means 48.

  Next, the inverter 2 is mounted on the support portion 43 of the mount bracket 4, and appropriate portions are fixed by fastening means or the like.

  Next, the harness 3 connected to the inverter 2 is guided downward to the vicinity of the lower end of the side member 14 through the vicinity of the corner portion 42 of the mount bracket 4, and is routed rearward along the lower end portion of the side member 14. . At this time, the reinforcing member 6 is not yet fastened to the mount bracket 4, and the reinforcing member 6 does not hinder the wiring work of the harness 3.

  Further, along with the wiring work of the harness 3, an appropriate portion of the harness 3 is fixed to the vehicle body 1 by the clip 30, and is fixed to the mount bracket 4 by the clips 30a, 30b, 30c, and 30d.

  Thereafter, the reinforcing member 6 is coupled to the mount bracket 4 by fastening means 61 and 62. At this time, since the harness 3 is fixed to the mount bracket 4 by the clips 30a, 30b, 30c, and 30d, the reinforcing member 6 can be fastened smoothly.

  As described above, in the heavy load support structure according to the first embodiment, since the reinforcing member 6 is provided in the corner portion 42 of the mount bracket 4 so as to straddle, the mount bracket 4 is reinforced and the reinforcing member 6 is provided. The mount bracket 4 can be reduced in size compared with the case where it is not provided.

  In addition, the mount bracket 4 tilts the inverter 2 forward and follows the outer shape of the transaxle TA disposed below the inverter 2, thereby reducing a useless space with the transaxle TA and driving source mounting room. The efficiency of accommodation in the ER can be improved.

  Further, by tilting the inverter 2 forward, the center of gravity of the inverter 2 is arranged in front of the vehicle rather than the horizontal support state, and the reinforcing member 6 is provided at the front coupling portion 45 where the weight of the inverter 2 is heavy. The strength of 4 can be efficiently reinforced. In addition, the front coupling portion 45 is less likely to interfere with the transaxle TA than the rear coupling portion 46, and more effectively uses space than the reinforcing the rear coupling portion 46, thereby further increasing the efficiency of accommodation. Can be achieved.

  In addition, since the reinforcing member 6 is separated from the mount bracket 4, the work procedure for fixing the reinforcing member 6 to the mount bracket 4 after the wiring and fixing work of the harness 3 can be adopted. The work can be facilitated.

  In order to route the harness 3 between the transaxle TA and the hood ridge panel 11, the space 47 formed between the mount bracket 4 and the reinforcing member 6 is passed. For this reason, the reinforcing member 6 can prevent the harness 3 from being directly sandwiched between the transaxle TA and the side member 14 at the time of a vehicle collision, and the harness 3 can be protected.

  As described above, in the first embodiment, the reinforcing member 6 for reinforcing the mounting bracket 4 is used for protecting the harness 3, so that the number of parts can be increased as compared with the case where a protector for protecting the harness 3 is separately provided. Reduction and cost reduction can be achieved.

  In addition, when the harness 3 is fixed to the mount bracket 4, the harness 3 is fixed to the skeleton portion 43 a and the front coupling portion 45. Since these portions are corners of the mount bracket 4 and are formed with high rigidity and are not easily deformed at the time of collision, the harness 3 can be prevented from jumping out at the time of the collision, The protection performance of the harness 3 can be further enhanced.

  In addition, since the curved portion 45e is formed on the rear wall 45d of the column portion 45c of the front coupling portion 45 of the mount bracket 4, a clearance space for the harness 3 at the time of collision can be secured, and the protection performance of the harness 3 can be further improved. it can.

  Further, in the mount bracket 4 and the reinforcing member 6 surrounding the space portion 47, the flange 43 e of the mount bracket 4 and the flanges 6 a and 6 a of the reinforcing member 6 are raised in the opposite direction of the space portion 47. For this reason, these flanges 43e, 6a, and 6a are hard to contact the harness 3, and can improve the protection performance of the harness 3 further.

  Next, a heavy load support structure of Example 2 of the embodiment of the present invention will be described with reference to FIG.

  Parts that are the same as or equivalent to those of the first embodiment are given the same reference numerals, and different parts will be mainly described.

  The heavy load support structure according to the second embodiment is an example in which a reinforcing member 206 is integrally provided at a corner portion 242 between the support portion 243 of the mount bracket 204 and the vehicle body coupling portion 241.

  In such a configuration, the reinforcing member 206 can be integrally provided in a brace shape by forming a hole for the space portion 247 later in the integral member. Alternatively, the separate reinforcing member 206 can be integrally formed using means such as welding.

  The embodiment of the present invention and Example 1 and Example 2 have been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, Example 1 and Example 2. Design changes that do not depart from the gist of the present invention are included in the present invention.

  That is, in the first and second embodiments, the example in which the support portion 43 and the vehicle body coupling portion 41 are formed in an approximately L shape is shown. You may form in different shapes, such as.

  Moreover, in Example 1, although the inverter 2 was arrange | positioned in the position which overlaps with the front part of the transaxle TA as a mounting component in a vehicle up-down direction, and the inverter 2 was supported in the forward-tilting state, the inclination direction was shown. Is not limited to forward leaning. That is, when the inverter 2 is arranged so as to overlap with the vehicle rear side portion of the mounted component in the vehicle vertical direction, the inverter 2 may be supported in a rearward inclined state with the vehicle rear side facing down.

  In the first embodiment, the reinforcing member 6 is coupled to the support portion 43 and the vehicle body coupling portion 41. However, in the configuration in which the reinforcing member 6 is retrofitted as in the first embodiment, the reinforcing member is used. 6 may be coupled to the support 43 and the vehicle body 1 such as the side member 14.

It is a perspective view which shows the heavy load support structure of Example 1 of embodiment of this invention. It is a schematic explanatory drawing seen from the vehicle information which shows the outline of the heavy load support structure of Example 1 of embodiment of this invention. It is a perspective view which shows the principal part of the heavy load support structure of Example 1 of embodiment of this invention. It is a side view of the state which omitted the harness which shows the principal part of the heavy load support structure of Example 1 of an embodiment of the invention. It is sectional drawing which shows the principal part of the heavy load support structure of Example 1 of embodiment of this invention. It is the front view seen from the vehicles front which omitted the harness which shows the principal part of the heavy load support structure of Example 1 of an embodiment of the invention. It is sectional drawing which shows the principal part of the heavy load support structure of Example 1 of embodiment of this invention. It is an expansion perspective view which shows the principal part of the heavy load support structure of Example 1 of embodiment of this invention. It is the schematic seen from the vehicle front which abbreviate | omitted the harness which shows the outline of the heavy load support structure of Example 2 of embodiment of this invention.

Explanation of symbols

1 Car body 2 Inverter (heavy load)
3 Harness (cord-like parts)
4 Mount bracket 6 Reinforcement member 6a Flange 14 Side member 41 Car body coupling portion 42 Corner portion 43 Support portion 43d Flange 43e Flange 47 Space portion ER Drive source mounting room TA Transaxle (mounted component)

Claims (7)

A heavy load is supported in a drive source mounting room by a mounting bracket coupled to a vehicle body forming the drive source mounting room in a state of being placed above the front part of the mounting component mounted in the driving source mounting room. ,
The mount bracket includes a vehicle body coupling portion coupled to a vehicle body, and a weight loading unit including a support portion that extends from the vehicle body coupling portion toward the inside of the drive source mounting room and supports the heavy load object. An object support structure,
The mount bracket is formed to support the heavy load in a forwardly inclined state in which the load is lowered to the front of the vehicle,
A heavy load support structure, wherein the mount bracket is provided with a reinforcing member extending from the lower surface of the support portion and connecting the support portion and the vehicle body coupling portion or the vehicle body in a brace form.   2. The heavy load support structure according to claim 1, wherein the reinforcing member is disposed in front of the vehicle with respect to a center of gravity of the heavy load. The reinforcing member is disposed at a position overlapping the mounted component in the vehicle width direction,
2. The cable-like component connected to the heavy load is routed through a space formed by the support portion, a vehicle body coupling portion or a vehicle body, and a reinforcing member. Or the heavy load support structure of Claim 2. The mounting bracket and the reinforcing member are provided with flanges forming corners for improving rigidity,
The heavy load according to any one of claims 1 to 3, wherein the flanges are raised in a direction opposite to the space portion at least at a position facing the space portion. Support structure.   5. The heavy load support structure according to claim 1, wherein the reinforcing member is formed separately from the mount bracket and is coupled to the mount bracket by fastening means. .   The heavy load support structure according to any one of claims 3 to 5, wherein the cord-like component is fixed to a support portion of the mount bracket.   The heavy load support structure according to claim 1, wherein the heavy load is an inverter connected to a motor that drives an automobile.

Images