Vehicle body front part structure

Abstract

To improve the convenience of a front trunk.SOLUTION: A vehicle body front part structure includes: a face board FB; a front side frame 100; an upper frame 110; a front cross member 200 connected to an inner side in a vehicle width direction at a connecting portion where the front side frame 100 and the upper frame 110 are connected; an upper cross member 210 to which a vehicle upper rear end part of the face board FB is fixed; a reinforcement 220 joining the front cross member 200 and the upper cross member 210 on both sides in the vehicle width direction; and a front trunk portion FT disposed at a vehicle upper side of the front cross member 200 and at a vehicle rear side of the upper cross member 210. An inclined surface TS1 and an inclined surface TS2 extending from a vehicle lower rear side toward a vehicle upper front side are formed on a vehicle front side surface of the front trunk portion FT, and an operation lever 310 passing through the vehicle upper side of the upper cross member 210 and protruding toward a vehicle front side is provided on the vehicle upper front side of the front trunk portion FT.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vehicle front body structure. [Background technology]

[0002] 2. Description of the Related Art In recent years, electric vehicles have become more popular, and as power units that drive the front wheels have become smaller, a front trunk may be attached below a front hood at the front of the vehicle body.

[0003] The front trunk is located at the front of the vehicle body, behind the bumper, air intake, or cooling device, and is therefore recessed from the front end of the vehicle body. Therefore, when a user puts or takes out luggage in or out of the front trunk, part of the body may come into contact with the front bumper face, making it difficult to put or take out luggage placed at the bottom of the front trunk.

[0004] As a technology to address the above-mentioned issues, a technology has been disclosed for a sliding double floor for a trunk room, which is configured in a vehicle equipped with a trunk lid that opens to the height of the trunk floor in order to ensure the opening dimensions of the trunk room, and which comprises a sliding movable floor that is guided and slid by rollers in guide grooves in the trunk floor and trunk side inner panel, and a wire that links the sliding of the sliding movable floor to the opening and closing of the trunk lid (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Utility Model Application Publication No. 2-113536 Summary of the Invention [Problem to be solved by the invention]

[0006] In the technology described in Patent Document 1, the trunk is moved in the longitudinal direction of the vehicle when the trunk hood is opened. However, the technology described in Patent Document 1 does not take into consideration the movement of the trunk in the vertical direction of the vehicle when the trunk hood is opened, which means there is a problem that it may be difficult to load and unload luggage placed at the bottom of the trunk.

[0007] SUMMARY OF THE PRESENT DISCLOSURE The present invention has been made in consideration of the above-mentioned problems, and has an object to provide a vehicle front body structure that improves the convenience of a front trunk. [Means for solving the problem]

[0008] Mode 1: One or more embodiments of the present invention include a pair of left and right front side frames extending in the front-rear direction of the vehicle on both sides in the vehicle width direction of the vehicle, a pair of left and right upper frames extending in the front-rear direction of the vehicle on the upper side of the front side frames and inclined toward the lower side of the vehicle at the front side of the vehicle and connected to the front side frames, a first cross member connected to the inside in the vehicle width direction at a connection portion where the front side frames and the upper frames are connected and extending in the vehicle width direction, and a second cross member provided on the front side of the upper part of the vehicle of the front side frames and extending in the vehicle width direction. The proposed front body structure comprises a cross member, a pair of left and right reinforcements connecting the first cross member and the second cross member on both sides in the vehicle width direction, and a front trunk section arranged above the first cross member and to the rear of the second cross member so as to be slidable in the fore-and-aft direction of the vehicle, wherein an inclined surface is formed on the front side of the front trunk section extending from the rear side of the lower part of the vehicle to the front side of the upper part of the vehicle, and an operating lever is provided on the front side of the upper part of the front trunk section which protrudes through the upper side of the second cross member toward the front side of the vehicle.

[0009] Form 2: One or more embodiments of the present invention propose a front body structure in which fixing grooves that engage with the first cross member and the second cross member are formed on the rear side of the inclined surface on the underside of the front trunk portion.

[0010] Form 3: One or more embodiments of the present invention propose a vehicle body front structure in which the upper rear side of the vehicle of the first cross member and the second cross member are provided with an inclined surface extending from the rear side of the vehicle toward the upper front side of the vehicle. Effect of the Invention

[0011] SUMMARY OF THE DISCLOSURE One or more embodiments of the present invention can improve the utility of a front trunk. [Brief description of the drawings]

[0012] [Figure 1] 1 is a perspective view of a vehicle body front structure according to an embodiment of the present invention, seen from above. [Diagram 2] This is a cross-sectional view taken along line A-A in FIG. [Diagram 3] 1A to 1D are schematic diagrams showing a front trunk section in a vehicle front body structure according to an embodiment of the present invention, where (a) is a plan view, (b) is a front view, (c) is a side view, and (d) is a bottom view. [Figure 4] 2A to 2C are cross-sectional views taken along line A-A as viewed from the direction of the arrows in FIG. 1 , showing the movement of the front trunk section in a time series when the front trunk section is pulled out towards the front of the vehicle in a vehicle front body structure according to an embodiment of the present invention, where (a) shows the state before the front trunk section is pulled out, (b) shows the state during the pull-out, and (c) shows the state after the front trunk section has been pulled out. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, a vehicle body front structure S according to this embodiment will be described with reference to Figures 1 to 4. Note that an arrow FR shown as appropriate in the drawings indicates the vehicle travel direction of the vehicle V shown in Figure 1, an arrow UP indicates the upper side of the vehicle V, and an arrow LH indicates the left side of the vehicle as viewed from the vehicle travel direction side. In addition, in the following description, when the up / down, front / rear, and left / right directions are used, they refer to the up / down direction as viewed from the vehicle travel direction side, the front / rear direction with the vehicle travel direction side being the front, and the left / right direction as viewed from the vehicle travel direction side, unless otherwise specified.

[0014] <Embodiment> The configuration of a vehicle body front structure S according to this embodiment will be described with reference to Figs.

[0015] <Vehicle V Configuration> The vehicle V is, for example, an electric vehicle (EV) using a vehicle driving motor in a drive unit DA as a driving source. Note that the vehicle V may be, for example, a hybrid electric vehicle (HEV) having multiple driving sources such as an engine and a power unit.

[0016] (Regarding the front body structure S) 1, a vehicle V has a vehicle body front structure S disposed in front of a cabin CA as a vehicle interior in which passengers board. The vehicle body front structure S is provided in front of a toe board 20. The vehicle body front structure S includes a toe board section 20, a strut tower section 30, a drive section DA, a frame section FL, a front hood section FF, and a front trunk section FT.

[0017] The toe board portion 20 is a partition wall that is raised in the vehicle up-down direction on the vehicle front side of the cabin CA and separates the cabin CA from the vehicle body front structure S. The toe board portion 20 is formed of metal or the like.

[0018] The strut towers 30 are supports on the vehicle body side to which the suspension is attached, and are provided on both sides in the vehicle width direction at the front side of the toe board 20. The strut towers 30 are connected to an upper frame 110 (described later) on the outer side of the upper part of the vehicle, and are connected to a front side frame 100 on the inner side of the lower part of the vehicle.

[0019] (About the drive unit DA) The drive section DA includes a power unit section 40 and an inverter section 50. The power unit 40 is a drive device provided with a vehicle drive motor, a transmission, a clutch, a drive shaft, etc. (not shown) that drives the front wheels 10. The inverter 50 generates a voltage required to drive the power unit 40.

[0020] (Regarding the frame part FL) The frame portion FL forms the skeleton of the vehicle V in the vehicle body front structure S. The frame portion FL includes a front side frame 100, an upper frame 110, a center cross member 120, a front cross member 200, an upper cross member 210, and a reinforcement 220. The frame portion FL is joined to a toe board portion 20 and a strut tower portion 30 at the rear side of the vehicle by welding or the like.

[0021] The front side frame 100 extends in the front-rear direction of the vehicle on both sides of the front of the vehicle in the vehicle width direction. The front side frame 100 is connected to the toe board portion 20 at the rear end of the vehicle. The front side frame 100 is also connected to the strut tower portion 30 by welding or the like at the outer side of the rear of the vehicle. The front side frame 100 is formed of metal or the like and has a substantially rectangular closed cross-sectional shape.

[0022] The upper frame 110 extends in the front-to-rear direction of the vehicle above the front side frame 100, inclines toward the lower side of the vehicle at the front of the vehicle, and is joined to the front end of the front side frame 100. The upper frame 110 is also joined to the toe board portion 20 and the strut tower portion 30 at the rear of the vehicle. The upper frame 110 is made of metal or the like, and has a substantially rectangular closed cross-sectional shape.

[0023] The center cross member 120 extends in the vehicle width direction at the vehicle front side of the drive unit DA and is joined to the inside in the vehicle width direction of the front side frames 100 on both the left and right sides. The center cross member 120 is made of metal or the like and has a substantially rectangular closed cross-sectional shape.

[0024] A front cross member 200 as a first cross member is joined to the inner side in the vehicle width direction at a joint where the front side frame 100 and the upper frame 110 are joined, and extends in the vehicle width direction. 2, an inclined surface SL1 extending in the vehicle width direction from the rear side to the front side of the upper part of the vehicle is provided on the rear side of the upper part of the vehicle of the front cross member 200. The inclined surface SL1 is provided as an inclined surface that can come into surface contact with an inclined surface TS1 and an inclined surface TS2 provided on the front trunk portion FT described later.

[0025] The upper cross member 210 as a second cross member is provided on the front side of the front cross member 200 at the upper part of the vehicle and extends in the vehicle width direction, with the upper part of the vehicle being fixed to the rear end of the face board FB. An inclined surface SL2 extending in the vehicle width direction from the rear side of the vehicle to the front side of the vehicle upper portion is provided on the rear side of the upper cross member 210. The inclined surface SL2 is provided as an inclined surface capable of surface contact with an inclined surface TS1 and an inclined surface TS2 provided on the front trunk portion FT described later. The inclined surface SL2 is formed on the same plane as the inclined surface SL1.

[0026] The reinforcement 220 connects, on both sides in the vehicle width direction, a vehicle width end of the front cross member 200 and a vehicle width end of the upper cross member 210. The reinforcement 220 is formed from metal or the like, and has a substantially rectangular closed cross-sectional shape. The upper surface of the reinforcement 220 has an inclination along the inclined surfaces SL1 and SL2 provided on the front cross member 200 and the upper cross member 210, and is disposed extending in the front-rear direction of the vehicle.

[0027] A bumper panel BP, a face board FB, and a crash box CB are provided at the front end of the frame portion FL to absorb impact in the event of a collision. The face board FB is fixed to the upper cross member 210 by snaps or the like. The bumper panel BP and the face board FB may be integrated together.

[0028] A radiator panel RP is provided below the front cross member 200 and serves as a cooling device having air guide members AI1 and AI2 that guide outside air into the interior of the vehicle. The air guide member AI1 and the air guide member AI2 are provided on the vehicle underside of the front cross member 200 and are arranged so that the taken-in outside air passes through the vehicle underside of a front trunk portion FT, which will be described later. The air guide member AI1 and the air guide member AI2 are made of materials such as resin or metal.

[0029] (Front hood FF) A front hood portion FF is provided on the upper side of the vehicle of the front body structure S. The front hood section FF is provided with an opening / closing shaft (not shown) having a rotation axis facing in the vehicle width direction on the vehicle front side of the cabin CA of the vehicle V. The front hood section FF is disposed so as to cover the upper side of the vehicle body front structure S, and is configured to open and close the front hood section FF, for example, by raising and lowering the vehicle front side of the front hood section FF with the opening / closing shaft as a fulcrum.

[0030] (Regarding the front trunk FT) The trunk unit 300 is a storage box made of resin or other material for storing luggage, etc., and is arranged above the front cross member 200 and to the rear of the upper cross member 210 so as to be able to slide in the fore-and-aft direction of the vehicle. As shown in FIG. 3, the front trunk section FT includes a trunk unit 300 and an operating lever 310.

[0031] Trunk unit 300 is formed in a substantially quadrangular pyramid shape. The side surface of trunk unit 300 in the vehicle width direction is formed in a substantially trapezoidal shape as shown in Fig. 3(c). The upper and lower vehicle sides of trunk unit 300 are formed in a substantially rectangular shape as shown in Fig. 3(a) and Fig. 3(d). The front side of the vehicle is provided with inclined surfaces TS1 and TS2 extending from the rear side of the lower part of the vehicle toward the front side of the upper part of the vehicle as shown in Fig. 3(b) and Fig. 3(c). In addition, a recess NT is provided on the rear side of the lower part of the vehicle of trunk unit 300, extending in the vehicle width direction as shown in Fig. 3(c). Fixing grooves FG1 and FG2 for fitting with front cross member 200 and upper cross member 210 are formed on the vehicle rear side of inclined surfaces TS1 and TS2 of trunk unit 300, extending in the vehicle width direction.

[0032] An operating lever 310 is disposed on the vehicle front side of the trunk unit 300, which passes above the vehicle of the upper cross member 210 serving as a second cross member and protrudes toward the front of the vehicle. The operating lever 310 is a handle that a user grasps when pulling the front trunk section FT out toward the front of the vehicle. As shown in Figure 3 (c), the operating lever 310 is fixed to the front side of the upper part of the vehicle of the front trunk section FT, extends toward the upper side of the vehicle along the inclined surface TS2 provided on the front trunk section FT, and is bent toward the front of the vehicle at the upper end part of the front trunk section FT. The operating lever 310 protrudes from the front end of the front trunk portion FT toward the front side of the vehicle, and as shown in FIG. 3(a), is formed in a substantially U-shape when viewed from above the vehicle.

[0033] <Actions and Effects> In the vehicle body front structure S according to this embodiment configured as described above, the operation when a user opens the front hood portion FF and uses the front trunk portion FT will be described with reference to FIG.

[0034] As shown in FIG. 4(a), when a user uses a front trunk portion FT of a vehicle V, the user opens the front hood portion FF in the direction indicated by an arrow AR1. In the front trunk section FT, a fixing groove FG2 formed on the vehicle underside of the trunk unit 300 is fitted into the front cross member 200. The vehicle front side of the trunk unit 300 and the vehicle underside of the operating lever 310 abut against the upper cross member 210. A recess NT provided on the vehicle lower rear side of the trunk unit 300 is placed on the center cross member 120. Therefore, the front trunk section FT is stably placed by being sandwiched between the frame sections FL in the vehicle fore-and-aft direction. Then, the user pulls out the operation lever 310 protruding from the face board FB toward the upper side of the vehicle in the direction indicated by the arrow AR2.

[0035] As shown in FIG. 4(b), trunk unit 300 is provided at its vehicle front side with inclined surfaces TS1 and TS2 that abut against front cross member 200 and extend from the rear side of the vehicle toward the upper front side of the vehicle. When operating lever 310 is pulled in the direction indicated by arrow AR2, inclined surfaces TS1 and TS2 in front trunk section FT slide on inclined surfaces SL1 and SL2 provided on front cross member 200 and upper cross member 210.

[0036] As shown in FIG. 4(c), the trunk unit 300 is pulled out to a position on the vehicle front side relative to the face board FB or the bumper panel BP. By fitting fixing grooves FG1 and FG2 of trunk unit 300 to front cross member 200 and upper cross member 210, trunk unit 300 is stably fixed.

[0037] As described above, the vehicle body front structure S according to this embodiment comprises a face board FB attached to the front end of the upper part of the vehicle at the front side of the vehicle V, extending in the vehicle width direction, a pair of left and right front side frames 100 extending in the vehicle front-rear direction on both sides in the vehicle width direction of the vehicle V, a pair of left and right upper frames 110 extending in the vehicle front-rear direction on the upper side of the front side frames 100 and inclining towards the lower side of the vehicle at the front side of the vehicle and connected to the front side frames 100, a front cross member 200 as a first cross member connected to the inside in the vehicle width direction at a connection portion where the front side frames 100 and the upper frames 110 are connected and extending in the vehicle width direction, and a vehicle upper rear portion of the face board FB. The vehicle comprises an upper cross member 210 as a second cross member having a fixed end and extending in the vehicle width direction, a pair of left and right reinforcements 220 connecting the front cross member 200 and the upper cross member 210 on both sides in the vehicle width direction, and a front trunk section FT arranged on the upper side of the vehicle of the front cross member 200 and the rear side of the upper cross member 210 so as to be slidable in the fore-and-aft direction of the vehicle, with inclined surfaces TS1 and TS2 formed on the front side of the vehicle, extending from the rear side of the lower part of the vehicle to the front side of the upper part of the vehicle, and an operating lever 310 being provided on the front side of the upper part of the vehicle of the front trunk section FT, which protrudes toward the front side of the vehicle, passing through the upper side of the vehicle of the upper cross member 210. That is, the user grasps the operating lever 310 provided on the front side of the front trunk section FT and pulls the front trunk section FT up toward the front upper part of the vehicle. The inclined surfaces TS1 and TS2 provided on the underside of the front trunk section FT allow the front trunk section FT to easily slide along the upper side of the vehicle of the front cross member 200 and the upper cross member 210. The trunk unit 300 is easily pulled out to a position further forward than the face board FB or the bumper panel BP. Therefore, the user can easily lift the front trunk section FT toward the upper side of the vehicle and pull it toward the front side of the vehicle beyond the face board FB and the bumper panel BP. The user can easily put in and take out luggage stored in the bottom part of the trunk unit 300 without any part of the user's body coming into contact with the face board FB or the bumper panel BP. This improves the convenience of the front trunk.

[0038] In the vehicle front structure S of this embodiment, fixing grooves FG1 and FG2 are formed on the vehicle rear side of the inclined surfaces TS1 and TS2 on the vehicle underside of the front trunk section FT, which engage with the front cross member 200 as a first cross member and the upper cross member 210 as a second cross member. That is, the user easily pulls out the front trunk section FT to a position further forward of the face board FB or bumper panel BP. Then, the front cross member 200 and the upper cross member 210 fit into the fixing grooves FG1 and FG2 formed in the front trunk section FT, so that the front trunk section FT is stably fixed to the front cross member 200 and the upper cross member 210 while being pulled up toward the top of the vehicle and toward the user. Therefore, the user can easily put in and take out luggage stored in the bottom part of trunk unit 300 without any part of the user's body coming into contact with face board FB or bumper panel BP. This makes it easier to use the front trunk.

[0039] In the vehicle body front structure S of this embodiment, the front cross member 200 as the first cross member and the upper cross member 210 as the second cross member have inclined surfaces SL1 and SL2 on the rear side of the upper part of the vehicle, which extend from the rear side of the vehicle toward the front side of the upper part of the vehicle. In other words, when a user pulls up front trunk section FT toward the upper front side of the vehicle, inclined surfaces TS1 and TS2 provided on front trunk section FT easily slide over inclined surfaces SL1 and SL2 provided on front cross member 200 and upper cross member 210. Then, front trunk section FT is easily pulled out to a position further forward of the vehicle than face board FB or bumper panel BP. Therefore, the user can more easily put in and take out luggage stored in the bottom part of trunk unit 300 without any part of the user's body abutting against face board FB or bumper panel BP. This improves the convenience of the front trunk.

[0040] Incidentally, the inclined surfaces TS1 and TS2 of the front trunk portion FT, or the inclined surfaces SL1 of the front cross member 200 and the inclined surfaces SL2 of the upper cross member 210 may be provided with slide rails for sliding the trunk unit 300 in the fore-and-aft direction of the vehicle.

[0041] Although an embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and designs that do not deviate from the gist of the present invention are also included. [Explanation of symbols]

[0042] 100;Front side frame 110;Upper frame 120;Center cross member 200;front cross member 210;Upper cross member 220; Reinforcement 300; Trunk unit 310;Operating lever DA; Drive unit FB; Face board FF; Front hood section FL: Frame section FG1; Fixed groove FG2; Fixed groove FT: Front trunk S; Front body structure SL1; Slope SL2; Inclined surface TS1; Inclined surface TS2; Inclined surface V; Vehicle

Claims

1. A pair of left and right front side frames extending in a front-rear direction of the vehicle on both sides in a vehicle width direction of the vehicle; a pair of left and right upper frames extending in a front-rear direction of the vehicle on an upper side of the front side frames, inclining toward a lower side of the vehicle at a front side of the vehicle and coupled to the front side frames; a first cross member that is connected to the front side frame and the upper frame at a joint portion where the front side frame and the upper frame are joined, on an inner side in a vehicle width direction, and that extends in a vehicle width direction; A second cross member is provided on a front side of an upper portion of the front side frame and extends in a vehicle width direction; A pair of left and right reinforcements connecting the first cross member and the second cross member on both sides in the vehicle width direction; a front trunk section disposed on an upper side of the first cross member and on a rear side of the second cross member so as to be slidable in a front-rear direction of the vehicle; Equipped with A vehicle body front structure characterized in that a sloped surface is formed on the front side of the front trunk section from the rear side of the lower part of the vehicle toward the front side of the upper part of the vehicle, and an operating lever is provided on the front side of the upper part of the vehicle of the front trunk section, which protrudes toward the front side of the vehicle through the upper side of the second cross member.

2. The vehicle front structure as described in claim 1, characterized in that a fixing groove that fits with the first cross member and the second cross member is formed on the rear side of the inclined surface on the vehicle underside of the front trunk portion.

3. A vehicle front structure as described in claim 1 or claim 2, characterized in that the first cross member and the second cross member have an inclined surface on the rear side of the upper part of the vehicle, the inclined surface extending from the rear side of the vehicle toward the front side of the upper part of the vehicle.

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