JP2007069732A - Vehicle front structure of automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To largely form auxiliary machine arrangement space for protecting an auxiliary machine from the heat of an engine in an engine room. <P>SOLUTION: Vehicle front structure of an automobile comprises a partition wall 7 extending in a fore-and-aft direction of a vehicle body on an inner side in a vehicle width direction of one of a pair of right and left strut towers 41 and 41 while having space between the strut tower 41 and the partition wall 7, with a lower end part joined to a front side frame 5 on the same side as the strut tower 41, out of the pair of right and left front side frames 5 and 5, for dividing the engine room R into the auxiliary machine arrangement space AS on an outer side in the vehicle width direction, and engine arrangement space ES on the inner side in the vehicle width direction; a duct 84 having a travel air introducing port 84a for introducing travel air into the auxiliary machine arrangement space AS; and an exhaust part 42 having a second exhaust port 43 located on a vehicle body rear side of the travel air introducing port 84a for discharging the travel air introduced into the auxiliary machine arrangement space AS. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle front structure of an automobile, and more particularly to a vehicle front structure in which an engine room is divided into an engine installation space and an accessory installation space.

  Conventionally, a partition wall extending in the longitudinal direction of the vehicle body is provided in the engine room, and the engine room is divided into an engine installation space in which the engine is arranged and an auxiliary machine installation space in which the auxiliary machine is arranged. A front structure is known (Patent Document 1 or 2).

  In the vehicle front part structure of the automobile according to Patent Document 1, a partition wall is provided that extends in the longitudinal direction of the vehicle body in the engine room, the front end part is joined to the shroud panel, and the rear end part is joined to the strut tower. The space on the inner side in the vehicle width direction from the partition wall is used as an engine installation space, and the space on the outer side in the vehicle width direction from the partition wall is used as an auxiliary machine installation space.

  Moreover, in the vehicle front part structure of the automobile according to Patent Document 2, a partition wall is provided that extends in the longitudinal direction of the vehicle body in the engine room and has a front end joined to the strut tower and a rear end joined to the dash panel. Thus, a space on the inner side in the vehicle width direction from the partition wall is used as an engine installation space, and a space on the outer side in the vehicle width direction from the partition wall is used as an auxiliary machine installation space.

In this way, in the engine room, the auxiliary machine arranged in the auxiliary machine installation space is isolated from the engine arranged in the engine installation space by the partition wall, thereby protecting the auxiliary machine from the heat of the engine.
Japanese Utility Model Publication No. 63-181531 Japanese Utility Model Publication No. 1-150179

  However, in many cases, the auxiliary machines disposed in the engine room are preferably not affected by the heat of the engine in order to effectively exhibit the functions of the auxiliary machines. There may be cases where the auxiliary equipment installation space cannot be fully accommodated. In particular, in a small engine room, the accessory installation space is also reduced, and it is important how large this accessory installation space can be secured.

  The present invention has been made in view of such a point, and an object of the present invention is to form a large accessory installation space for protecting the accessory from the heat of the engine in the engine room.

  1st invention is provided in the vehicle width direction both sides in the engine room formed in the vehicle body front part, and is provided in the vehicle width direction both sides in a vehicle width direction in the said engine room, and a pair of left and right front side frames extended in the vehicle body front-back direction. A pair of left and right strut towers for fixing the upper portion of the suspension device, and a vehicle body longitudinal direction with a space between the strut towers on the inner side in the vehicle width direction of at least one of the pair of left and right strut towers And the lower end is joined to the front side frame on the same side as the strut tower of the pair of left and right front side frames, and the engine room is connected to the auxiliary equipment outside the vehicle width direction in which the auxiliary equipment is installed. A partition wall that is divided into an installation space and an engine installation space on the inner side in the vehicle width direction where the engine is installed, and the accessory arrangement A traveling wind introduction portion having an introduction port for introducing traveling wind to the front side of the vehicle body from the strut tower in the space, and the traveling wind introduced into the accessory installation space It is assumed that a discharge portion having a discharge port for discharging from the rear portion of the vehicle body from the strut tower is provided.

  In the case of the above-described configuration, the partition wall is provided on the inner side in the vehicle width direction with respect to the strut tower, so that the partition wall is disposed on the outer side in the vehicle width direction compared to the configuration in which the partition wall is joined to the strut tower. The auxiliary machine installation space formed in the vehicle can be expanded inward in the vehicle width direction. Thus, by expanding the accessory installation space, many accessories can be installed in the accessory installation space and shielded from the heat of the engine.

  Furthermore, it is preferable that these auxiliary machines not only shield from the heat of the engine but also cool actively. Therefore, in the first invention, the traveling wind is introduced into the front side of the vehicle body from the strut tower in the accessory arrangement space by the traveling wind introduction part, and the strut tower in the accessory arrangement space by the discharge part. Further, since the traveling wind is discharged from the rear portion of the vehicle body, it is possible to effectively cool the auxiliary equipment in the auxiliary equipment installation space with the traveling wind. At this time, since a gap is formed between the partition wall and the strut tower, the auxiliary equipment disposition space between the front side portion of the vehicle body from the strut tower and the rear side portion of the vehicle body from the strut tower, The traveling wind can be circulated through the space between the partition wall and the strut tower, and as a result, the traveling wind can be circulated throughout the auxiliary equipment installation space to cool the auxiliary equipment. That is, the partition wall and the strut tower only need to have a distance that allows the traveling wind to flow. For example, the lower part of the partition wall and the strut tower are joined, but the upper part has a distance. For example, at least a part of the partition wall and the strut tower may be configured to have an interval in the vehicle width direction.

  According to a second aspect of the present invention, in the first aspect, the partition wall is joined to a shroud panel that partitions the front side of the engine room, and a rear end portion is a dash panel that partitions the rear side of the engine room. It shall be joined and it shall be constituted so that an upper end part may contact via a bonnet which covers the upper part of the above-mentioned engine room, and a seal member.

  In the case of the above configuration, since the front end portion and the rear end portion of the partition wall are respectively joined to the shroud panel and the dash panel, the heat of the engine wraps around the front end and rear end of the partition wall and enters the auxiliary equipment installation space. Can be prevented from flowing into. Further, since the upper end portion of the partition wall is in contact with the bonnet via the seal member, the heat of the engine can be prevented from flowing around the upper end of the partition wall and flowing into the accessory installation space. . That is, it is possible to improve the heat shielding property of the auxiliary equipment installation space and more reliably protect the auxiliary equipment from the heat of the engine. In addition, by providing the partition wall extending from the shroud panel at the front end of the engine room to the dash panel at the rear end of the engine room, the partition wall is provided only between the strut tower and the dash panel. Compared to the conventional configuration provided only between the shroud panel and the strut tower, the accessory installation space can be expanded in the longitudinal direction of the vehicle body.

  According to a third aspect of the present invention, there is provided a shroud panel that divides a front side of an engine room formed at a front portion of the vehicle body, a dash panel that divides a rear side of the engine room, and extends in the vehicle body longitudinal direction in the engine room. The rear part is joined to the dash panel while the weak part is weaker than the dash panel in the longitudinal direction of the vehicle body, and the engine room is connected to the shroud panel. It is assumed that a partition wall is provided that is divided into an auxiliary machine installation space on one side in the vehicle width direction where the auxiliary machine is installed and an engine installation space on the other side in the vehicle width direction where the engine is installed.

  In the case of the above configuration, the partition is provided only between the strut tower and the dash panel by providing the partition extending from the shroud panel at the front end of the engine room to the dash panel at the rear end of the engine room. Or, compared with the conventional configuration in which the partition wall is provided only between the shroud panel and the strut tower, the auxiliary equipment installation space can be formed larger in the longitudinal direction of the vehicle body.

  Here, if the rear end portion of the partition wall is joined to the dash panel, when an impact force is applied to the partition wall from the front side of the vehicle body, the partition wall may be displaced rearward and the dash panel may be deformed to the passenger compartment side. . Therefore, in the third invention, by forming the fragile portion in the partition wall, even if an impact force is applied to the partition wall from the front during a vehicle collision, the fragile portion is deformed to absorb the impact force, Although the rear end of the partition wall is joined to the dash panel, it is possible to prevent the partition wall from being displaced rearward of the vehicle body and causing the dash panel to be deformed to the vehicle interior side when the vehicle collides. In addition, the structure in which the said weak part is formed in the whole partition is also contained in this invention.

  According to a fourth invention, in the third invention, provided on both sides in the vehicle width direction in the engine room and extending in the longitudinal direction of the vehicle body, the front end is joined to the shroud panel, while the rear end is the dash. A pair of left and right front side frames joined to the panel, a traveling wind introduction portion having an introduction port for introducing traveling wind into the accessory installation space, and located on the rear side of the vehicle body from the traveling wind introduction port; A discharge portion having a discharge port for discharging the traveling wind introduced into the installation space, and the partition wall has a lower end portion joined to one of the pair of left and right front side frames; To do.

  In the case of the above configuration, the traveling wind is introduced into the auxiliary equipment installation space by the traveling wind introduction section, and the traveling wind is discharged by the discharge portion located at the rear of the vehicle body from the traveling wind introduction section. The auxiliary machine in the auxiliary machine installation space can be effectively cooled by the traveling wind.

  According to a fifth aspect, in the fourth aspect, the upper end of the partition wall is configured to come into contact with a bonnet that covers an upper portion of the engine room via a seal member.

  In the case of the above configuration, since the front end portion and the rear end portion of the partition wall are joined to the shroud panel and the dash panel, respectively, the front end and the rear end of the partition wall wrap around the auxiliary equipment installation space. Although heat is prevented from entering, the heat of the engine can be prevented from entering the auxiliary equipment installation space from the upper end of the partition wall by bringing the upper end portion of the partition wall into contact with the bonnet. As a result, it is possible to improve the heat shielding property of the accessory installation space and more reliably protect the accessory from the heat of the engine.

  According to a sixth aspect of the present invention, in the fourth or fifth aspect, each front side frame is formed with a frame weakened portion having a weaker strength in the longitudinal direction of the vehicle body than the other portion of the front side frame at the front end portion. The weak part of the partition wall is formed at least at the same position as the weak part of the frame in the longitudinal direction of the vehicle body.

  In the case of the above configuration, when an impact force is applied from the front of the vehicle body in the event of a vehicle collision, the front side frame is deformed by the weak frame portion to absorb the impact force so that the impact force is not transmitted to the rear side of the vehicle body. be able to. The partition wall joined to the front side frame also has a fragile portion formed at the same position in the longitudinal direction of the vehicle body as the frame fragile portion, so that the fragile portion of the partition wall is smoothly deformed in accordance with the deformation of the frame fragile portion. And the impact force which acts on a partition can be more reliably absorbed by this weak part.

  In a seventh aspect based on the first or fourth aspect, the traveling wind introduction portion has a front end portion that opens to a front grill portion located in front of the engine room, and a rear end portion that is provided with the auxiliary device. It is assumed that the duct is opened in a space and forms the introduction port.

  In the case of the above configuration, the traveling wind can be surely introduced into the auxiliary equipment installation space by the duct.

  According to an eighth aspect of the invention, in any one of the first to seventh aspects, the partition wall has an upper end portion positioned inward in the vehicle width direction from the lower end portion over the entire region in the longitudinal direction of the vehicle body. Shall.

  In the case of the above configuration, the auxiliary machine installation space is relatively expanded inward in the vehicle width direction at the upper part of the partition wall, and the engine installation space is relatively extended outward in the vehicle width direction at the lower part of the partition wall. Will be expanded. Usually, the engine is installed in the engine installation space from below the vehicle body. That is, as described above, the workability when installing the engine can be improved by relatively expanding the engine installation space at the lower part of the partition wall outward in the vehicle width direction. In addition, since the auxiliary equipment installation space is enlarged above the partition wall, many auxiliary equipments can be protected from the heat of the engine. In the configuration in which the lower end portion of the partition wall is joined to the front side frame, the vehicle width direction position of the lower end portion of the partition wall is determined by the front side frame. Therefore, by positioning the upper end portion of the partition wall inward in the vehicle width direction relative to the lower end portion, the auxiliary equipment installation space can be expanded inward in the vehicle width direction only by the upper portion thereof.

  According to a ninth invention, in any one of the first to eighth inventions, the partition wall has a bent portion bent in the vehicle width direction between the upper end portion and the lower end portion.

  In the case of the above configuration, the rigidity of the partition can be improved by forming the bent portion in the partition.

  According to the present invention, the auxiliary machine installation space formed on the outer side in the vehicle width direction of the partition wall by providing the partition wall with a space between the strut tower on the inner side in the vehicle width direction of the strut tower. Can be expanded inward in the vehicle width direction, and as a result, many auxiliary machines can be installed in this auxiliary machine installation space and can be protected from the heat of the engine. In addition, the driving wind is introduced into the auxiliary equipment installation space by the running wind introduction section and the running wind is discharged by the discharge section, and there is a space between the partition wall and the strut tower in the vehicle width direction. Thus, the traveling wind can flow in the accessory installation space through this interval, and the accessory in the accessory installation space can be effectively cooled.

  Further, according to the present invention, by providing the partition wall extending from the shroud panel at the front end portion of the engine room to the dash panel at the rear end portion of the engine room, the auxiliary equipment installation space can be expanded in the longitudinal direction of the vehicle body, As a result, many auxiliary machines can be installed in this auxiliary machine installation space, and can be protected from engine heat. In addition, the rear end of the partition wall is joined to the dash panel. By providing the fragile portion on the partition wall, the fragile portion absorbs the impact force acting on the partition wall when the vehicle collides. Thus, it is possible to prevent the partition wall from being displaced toward the rear side of the vehicle body and deforming the dash panel toward the passenger compartment.

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

  1 and 2 schematically show a vehicle front structure according to an embodiment of the present invention. Reference numeral R denotes an engine room formed in the front portion of the vehicle and provided with the engine E and auxiliary machinery. The engine room R is formed by being surrounded by a shroud panel 1 provided at the front end, a dash panel 2 provided at the rear end, and front fender aprons 31 and 31 provided at both side ends. Yes.

  A shroud door member 11 extending in the vehicle width direction is provided on the upper portion of the shroud panel 1, and both ends of the shroud door member 11 are joined to front upper ends of a fender 3 described later. A radiator (not shown) is attached to the shroud panel 1.

  The dash panel 2 is provided at the front end of the vehicle compartment, and partitions the vehicle compartment and the engine room R. The dash panel 2 is provided with a cowl portion 21 at an upper portion thereof, and both end portions thereof are joined to the front fender apron 31.

  The front fender apron 31 and the fender panel 32 positioned on the outer side in the vehicle width direction of the front fender apron 31 form a fender 3 that covers the front wheel W. The front fender apron 31 is provided with a wheel house 4 that bulges inward in the vehicle width direction and accommodates the front wheel W. Further, the wheel house 4 is provided with a strut tower 41 that bulges into the engine room R for fixing an upper portion of a suspension device (not shown) of the front wheel W. One end of a tower bar 47 (shown only in FIG. 1) is attached to the upper portion of each strut tower 41, and the other end of the tower bar 47 is joined to the dash panel 2. The tower bar 47 improves the rigidity of the strut tower 41.

  A pair of front side frames 5, 5 extending in the longitudinal direction of the vehicle body are provided on both left and right sides in the vehicle width direction in the engine room R formed by the shroud panel 1, the dash panel 2 and the front fender aprons 31, 31. . The front side frames 5 and 5 are located inside the wheel houses 4 and 4 in the vehicle width direction. Each front side frame 5 has a substantially rectangular cross section, and a front end portion is joined to the shroud panel 1 and extends from there to the dash panel 2 toward the rear side of the vehicle body. The rear end portion of the front side frame 5 is joined to the front end portion of the side frame 59 that extends to the rear portion of the vehicle body along the dash panel 2 and a floor panel (not shown) at the bottom of the passenger compartment. In addition, a frame weakened portion 51 that is weaker than other portions of the front side frame 5 is formed at the front portion of the front side frame 5. In the frame weakened portion 51, the front side frame 5 extends on the upper wall, the lower wall, the inner wall, and the outer wall of the front side frame 5 in a direction perpendicular to the longitudinal direction of the front side frame 5 and the front side frame 5. Are formed on the inner side of the vehicle body, and when a large impact force is applied from the front of the vehicle body, the frame fragile portion 51 is deformed so as to be crushed in the longitudinal direction of the vehicle body. It is configured to absorb.

  Further, crush pipes 81 and 81 are provided at the front ends of the front side frames 5 and 5 with the shroud panel 1 interposed therebetween. Each crush tube 81 extends coaxially with the longitudinal direction of each front side frame 5 and has a rear end joined to the shroud panel 1. The crush tube 81 has a substantially rectangular cross section, and the upper and lower surfaces thereof have recesses 81a, 81a extending in a direction perpendicular to the longitudinal direction of the crush tube 81 and recessed inward of the crush tube 81, When a large impact force is applied from the front of the vehicle body, it is deformed so as to be crushed in the longitudinal direction of the vehicle body and absorbs the impact force. A bumper rain 82 extending in the vehicle width direction and having a substantially C-shaped cross section is joined to the front end portions of the crash pipes 81, 81. Further, a front bumper fascia 80 is attached to the shroud upper member 11 and the fender panel 32 of the shroud panel 1 from the front of the vehicle body so as to cover the crash pipes 81 and 81 and the bumper rain 82. An opening grill (front grill portion) 83 is formed at the front center of the front bumper fascia 80. An under cover (not shown) is attached to the front bumper fascia 80 and the front flange 46 of the wheel house from below.

  Further, as shown in FIG. 3, a bonnet 6 that covers the engine room R is provided in the upper part of the engine room R. The bonnet 6 is configured such that a rear end edge thereof is rotatably attached to the cowl portion 21 and a side end edge and a front end edge are in contact with the fenders 3 and 3 and the shroud upper member 11, respectively. A bonnet panel 61 and a lower bonnet reinforcement 62 are joined.

  As shown in FIGS. 1 to 3, a partition wall 7 extending in the front-rear direction of the vehicle body is provided at the top of each front side frame 5. The partition wall 7 is joined to the upper surface of the front side frame 5 by a flange 71 provided at the lower end. Further, the front end of the partition wall 7 is joined to the shroud upper member 11 by a bracket 72, while the rear end is joined to the dash panel 2 by flanges 73 and 73. The partition wall 7 extends in the longitudinal direction of the vehicle body in a state of being separated from the strut tower 41 on the inner side in the vehicle width direction of the strut tower 41. The partition wall 7 extends upward from the lower end joined to the front side frame 5, then bends inward in the vehicle width direction at the first bent portion 74, and further bent upward at the second bent portion 75. Extending upward. Thus, the bulkhead 7 is positioned in the vehicle width direction inward of the lower end portion over the entire region in the longitudinal direction of the vehicle body. Further, the upper end portion of the partition wall 7 is formed so as to decrease in height from the rear to the front of the vehicle body along the bonnet 6 covering the upper portion of the engine room R. 7 is provided with a seal member 76 extending in the longitudinal direction of the vehicle body. On the other hand, reinforcing ribs 63 extending in the longitudinal direction of the vehicle body are formed at positions corresponding to the partition walls 7 and 7 of the bonnet reinforcement 62 on the lower surface of the bonnet 6. The partition wall 7 is in contact with the reinforcing rib 63 of the bonnet 6 via the seal member 76. In addition, a weakened portion 77 that is more fragile than the dash panel 2 in the longitudinal direction of the vehicle body is formed at the front portion of the partition wall 7. The fragile portion 77 is formed with a plurality of concave portions 78, 78,... Extending in the vertical direction and recessed inward in the vehicle width direction. When the large impact force acts on the partition wall 7 from the front of the vehicle body, the fragile portion 77 77 is configured to be crushed in the longitudinal direction of the vehicle body to absorb the impact force. As a result, even if a large impact force acts on the partition wall 7 from the front of the vehicle body, the fragile portion 77 is deformed and absorbs the impact force, so that the partition wall 7 is displaced rearward and the dash panel 2 is moved to the vehicle interior side. It is possible to prevent deformation. Further, the fragile portion 77 is formed at the same position in the longitudinal direction of the vehicle body as the frame fragile portion 51 of the front side frame 5. By doing so, when a large impact force is applied from the front of the vehicle body, the fragile portion 77 of the partition wall 7 is also deformed in accordance with the deformation of the frame fragile portion 51 of the front side frame 5. Thus, the impact force can be reliably absorbed.

  The engine room R is divided into three spaces in the vehicle width direction by the left and right partition walls 7 formed in this way. In other words, the engine room R is located at the center of the vehicle installation direction ES sandwiched between the left and right partition walls 7, 7 and on both sides of the engine installation space ES, and each partition wall 7 and each front fender apron 31. Are divided into two auxiliary machine installation spaces AS and AS.

  The engine E is arranged vertically in the engine installation space ES. It should be noted that the engine is not limited to being placed vertically, but may be placed horizontally.

  Auxiliary equipment such as a battery 91, a PCM 92, an ABS unit 93, a brake master back 94, and a washer fluid tank 95 is provided in the auxiliary equipment installation spaces AS and AS. Although not shown in the drawings, a radiator reserve tank, a headlamp ballast, a cooler receiver tank, a fuse box, a power steering reserve tank, a relay box, and the like may be provided as other auxiliary machines.

  Further, in the auxiliary machine installation space AS, the front end, that is, between the partition wall 7 and the front fender apron 31, below the shroud door member 11 and above the wheel house 4, is downstream of the duct 84. The traveling wind inlet 84a which is an end is located (see FIG. 2). The upstream end of the duct 84 opens to the opening grill 83 of the front bumper fascia 80 (see FIG. 1), and extends from there to the accessory installation space while bypassing the crash pipe 81 and the like. A traveling wind introduction portion for introducing traveling wind into the installation space AS is configured. Further, as shown in FIG. 4, a discharge portion 42 that discharges the traveling wind introduced from the duct 84 into the accessory installation space AS is provided on the rear side of the vehicle body of the wheel house 4. The discharge portion 42 is formed in the wheel house 4 so as to cover the second discharge port 43 as a discharge port for discharging the traveling wind to the outside of the accessory installation space AS, and the second discharge port 43. And a cover 44 attached to the wheel house 4. The cover 44 extends forward of the vehicle body along the wheel house 4, and has a substantially wedge-shaped cross section whose height from the wheel house 4 increases toward the front side of the vehicle body. A first discharge port 45 that opens to the auxiliary machine installation space AS is formed at a position shifted from the second discharge port 43. In the discharge part 42 formed in this way, the traveling wind introduced into the auxiliary machine installation space AS flows into the cover 44 from the first discharge port 45 of the cover 44, and is formed in the wheel house 4. 2 It is discharged out of the auxiliary machine installation space AS from the discharge port 43. By providing the cover 44 and shifting the first discharge port 45 of the cover 44 from the second discharge port 43, foreign matters such as mud and pebbles that the front wheel W jumps up in the auxiliary machine installation space AS. Intrusion can be prevented.

  Since the auxiliary machine installation space AS configured as described above is blocked by the engine installation space ES and the partition wall 7, the auxiliary machines 91, 92,. Can be protected from. Further, the front end portion of the partition wall 7 is joined to the shroud panel 1, the rear end portion is joined to the dash panel 2, and the upper end portion is brought into contact with the bonnet 6 via the seal member 76, thereby Can be prevented from flowing around the front end, the rear end and the upper end of the partition wall and flowing into the auxiliary equipment installation space, so that the heat shielding performance can be improved. It can be surely protected.

  The front end portion of the partition wall 7 is joined to the shroud panel 1, and the rear end portion is joined to the dash panel 2, so that the accessory installation space AS is expanded in the vehicle body front-rear direction, and the front end of the engine room R To the rear end. Further, by providing the partition wall 7 inward of the strut tower 41 in the vehicle width direction so as to be separated from the strut tower 41, the accessory arrangement space AS can be expanded inward in the vehicle width direction. Thus, by expanding the accessory arrangement space AS, more accessories can be arranged in the accessory arrangement space AS and protected from the heat of the engine E. Further, since the partition wall 7 is attached to the front side frame 5, the position in the vehicle width direction of the lower end portion thereof is determined by the position in the vehicle width direction of the front side frame 5, but the first bent portion 74 and the second bent portion 75 are By providing and positioning the upper end portion inward in the vehicle width direction from the lower end portion, the auxiliary machine installation space AS can be further expanded inward in the vehicle width direction only by the upper portion. Further, the partition wall 7 is formed not only with the upper end portion positioned inward in the vehicle width direction with respect to the lower end portion by forming the first bent portion 74 and the second bent portion 75 but also with the rigidity of the partition wall 7, particularly in the vertical direction. The bending rigidity around the extending axis can also be improved. Since the first bent portion 74 and the second bent portion 75 extend in the longitudinal direction of the vehicle body, when an impact force acts on the partition wall 7 from above, the first bent portion 74 and the second bent portion 75 are further bent. The partition wall 7 is easily deformed in the vertical direction, and when a pedestrian or the like collides with the bonnet 6, the partition wall 7 is deformed in the vertical direction together with the bonnet 6 to absorb the impact and improve the collision safety. it can.

  In addition, by introducing the traveling wind to the front side of the vehicle body from the strut tower 41 in the auxiliary equipment installation space AS by the duct 84, the auxiliary equipment 91, 92,. Can be cooled. Since this traveling wind is discharged from the discharge portion 42 provided in the rear part of the vehicle body from the strut tower 41 in the auxiliary machine installation space AS, the running wind is generated from the front side of the vehicle body in the auxiliary machine installation space AS. Although it flows to the rear side, since a space is formed between the partition wall 7 and the strut tower 41 in the vehicle width direction, the space from the front of the vehicle body to the space behind the vehicle body of the strut tower 41 from the strut tower 41 The traveling wind can flow smoothly through the interval, and the entire auxiliary machine installation space AS can be cooled.

<< Other Embodiments >>
The present invention may be configured as follows with respect to the above embodiment.

  In the above-described embodiment, the two partition walls 7 are provided on the left and right sides in the engine room R. However, the present invention is not limited to this, and only one of them may be provided. When the partition wall 7 is provided on either the left or right side, the space on the side where the center in the vehicle width direction of the engine room R is located is the engine installation space, and the other side is the auxiliary machine installation space. . The partition wall 7 has a front end joined to the shroud panel 1 and a rear end joined to the dash panel 2, but does not necessarily extend to the shroud panel 1 or the dash panel 2. . That is, it is only necessary to extend to the vicinity of the strut tower 41 at least inward in the vehicle width direction of the strut tower 41, and in this way, in the auxiliary equipment installation space AS in a space ahead of the strut tower 41. The introduced traveling wind can be circulated to the space behind the strut tower 41 via the space between the partition wall 7 and the strut tower 41, and the traveling wind can be circulated throughout the auxiliary equipment installation space AS. Auxiliary equipment can be cooled.

  In addition, the partition wall 7 is spaced apart from the strut tower 41 over the entire region in the vertical direction inside the strut tower 41 in the vehicle width direction. The portion below the portion 74 may be coupled to the strut tower 41, and the upper portion may be configured to be spaced from the strut tower 41 in the vehicle width direction. Even in such a configuration, since the upper portion of the partition wall 7 is positioned inward in the vehicle width direction relative to the strut tower 41, the auxiliary machine installation space AS can be expanded inward in the vehicle width direction. The running wind can be circulated from the vehicle body front side portion of the auxiliary equipment installation space AS to the vehicle body rear side portion through the space between the upper portion and the strut tower 41.

  Further, the fragile portion 77 only needs to be formed at least at the same position as the frame fragile portion 51 of the front side frame 5 in the longitudinal direction of the vehicle body, and is formed throughout the longitudinal direction of the partition wall 7. Also good.

  Moreover, although the said weak part 77 and the frame weak part 51 are each formed weakly by providing the recessed part 78,78, ... and the recessed part 52,52, ..., only the part is formed as a structure formed weakly. It is possible to adopt various configurations that reduce the rigidity, such as forming a thin member with a low rigidity, forming a thin wall, or providing an opening.

  In addition, although the said partition 7 is weakly formed in the vehicle body front-back direction by the weak part 77, you may form not only in this but in a vertical direction. By doing so, when a pedestrian collides with the bonnet 6, the partition 7 is easily deformed downward together with the bonnet 6, which is preferable in terms of collision safety. Various configurations can be adopted as the fragile configuration, similarly to the fragile portion 77 described above.

It is a perspective view showing the outline of the vehicle front part structure of the car concerning the embodiment of the present invention. It is a top view which shows the outline of the vehicle front part structure of a motor vehicle. It is sectional drawing in the III-III line of FIG. It is the perspective view which looked at the wheel house from the vehicle body diagonally rear.

Explanation of symbols

E Engine R Engine room ES Engine installation space AS Auxiliary machine installation space 1 Shroud panel 2 Dash panel 41 Strut tower 42 Discharge portion 43 Second discharge port (discharge port)
5 Front side frame 51 Frame weakened part 6 Bonnet 7 Bulkhead 74 First bent part (bent part)
75 Second bent part (bent part)
76 Seal member 77 Weak part 83 Opening grill (front grill part)
84 Duct (running wind introduction part)
84a Running wind inlet (inlet)
91 Battery (auxiliary machine)
92 PCM (auxiliary machine)
93 ABS unit (auxiliary machine)
94 Brake master back (auxiliary machine)
95 Washer liquid tank (auxiliary machine)

Claims (9)

A pair of left and right front side frames provided on both sides in the vehicle width direction in the engine room formed at the front of the vehicle body and extending in the vehicle longitudinal direction;
A pair of left and right strut towers which are provided on both sides in the vehicle width direction in the engine room and fix the upper part of the suspension device;
The pair of left and right front side frames that extend in the vehicle front-rear direction with a space between the strut tower and at the inner side in the vehicle width direction of at least one strut tower of the pair of left and right strut towers. Among these, the engine compartment is joined to the front side frame on the same side as the strut tower, and the engine room is arranged in the vehicle width direction outside where the auxiliary machine is arranged and the engine in the vehicle width direction where the engine is arranged. A partition wall that is divided into an installation space;
A traveling wind introduction part having an introduction port for introducing a traveling wind to the front side of the vehicle body from the strut tower in the auxiliary equipment arrangement space;
And a discharge portion having a discharge port for discharging the traveling wind introduced into the accessory installation space from the rear side of the vehicle body from the strut tower in the accessory installation space. Vehicle front structure of automobile. The vehicle front structure of an automobile according to claim 1,
The partition is
The front end is joined to a shroud panel that defines the front side of the engine room,
The rear end is joined to a dash panel that defines the rear side of the engine room,
A vehicle front structure of an automobile, wherein an upper end portion is configured to contact with a bonnet covering an upper portion of the engine room via a seal member. A shroud panel that partitions the front side of the engine room formed in the front of the vehicle body;
A dash panel that partitions the rear side of the engine room;
In the engine room, it extends in the longitudinal direction of the vehicle body, the front end portion is joined to the shroud panel, the rear end portion is joined to the dash panel, and at least part of the strength in the longitudinal direction of the vehicle body is higher than that of the dash panel. A weak fragile part is formed, and the engine room is divided into an auxiliary machine installation space on one side in the vehicle width direction where the auxiliary machine is installed and an engine installation space on the other side in the vehicle width direction where the engine is installed. A vehicle front structure of an automobile, comprising a partition wall to be divided. In the vehicle front structure of the automobile according to claim 3,
A pair of left and right front side frames provided on both sides in the vehicle width direction in the engine room, extending in the longitudinal direction of the vehicle body and having a front end joined to the shroud panel and a rear end joined to the dash panel; ,
A traveling wind introduction portion having an inlet for introducing traveling wind into the auxiliary equipment installation space;
A discharge portion which is located on the rear side of the vehicle body from the traveling wind introduction port and has a discharge port for discharging the traveling wind introduced into the arrangement space;
A vehicle front structure of an automobile, wherein a lower end portion of the partition wall is joined to one of the pair of left and right front side frames. The vehicle front structure of an automobile according to claim 4,
The vehicle partition structure according to claim 1, wherein the partition wall is configured such that an upper end portion is in contact with a bonnet that covers an upper portion of the engine room via a seal member. In the vehicle front structure of the automobile according to claim 4 or 5,
Each of the front side frames is formed with a weakened frame portion having a weaker strength in the front-rear direction of the vehicle body than the other part of the front side frame at the front end portion.
The vehicle front part structure of an automobile, wherein the weak part of the partition wall is formed at least at the same position as the frame weak part in the longitudinal direction of the vehicle body. In the vehicle front part structure of the automobile according to claim 1 or 4,
The traveling wind introduction portion is a duct whose front end portion opens to a front grill portion located in front of the engine room, and whose rear end portion opens to the accessory installation space to form the introduction port. A vehicle front structure of an automobile characterized by the above. In the vehicle front part structure of the automobile according to any one of claims 1 to 7,
The above-mentioned partition has a vehicle front part structure of a car in which an upper end part is located inward in a vehicle width direction rather than a lower end part over the whole field of the body longitudinal direction. In the vehicle front part structure of the automobile according to any one of claims 1 to 8,
The vehicle partition structure according to claim 1, wherein the partition wall has a bent portion that is bent in the vehicle width direction between the upper end portion and the lower end portion.

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