Front structure of vehicle

The vehicle front structure addresses the issue of side frame deformation by enabling the detachment of on-board equipment upon impact, ensuring effective absorption of impact loads.

JP2025173362APending Publication Date: 2025-11-27MAZDA MOTOR CORP
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Patent Information

Application Number
JP2024078917
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-05-14
Publication Date
2025-11-27

AI Technical Summary

Technical Problem

The existing vehicle front structures hinder the deformation of side frames when on-board equipment is located between the left and right side frames, leading to insufficient absorption of impact loads.

Method used

A vehicle front structure with a pair of left and right side frames, a cross member, and an in-vehicle device with a first and second fixing portion, where the second fixing portion can detach upon impact, allowing the device to fall off and prevent side frame deformation.

Benefits of technology

The structure prevents side frame deformation by allowing the in-vehicle device to detach, effectively absorbing impact loads without hindering the side frames.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a front structure of a vehicle which does not hinder the deformation of the side rails even in a case where on-board equipment is mounted to a suspension member when the impact load is applied.SOLUTION: A front structure of a vehicle comprises a pair of right-and-left side frames 33 extending in a longitudinal direction, a cross member 34 provided to extend between the pair of right-and-left side frames 33, and on-board equipment 70 positioned between the pair of right-and-left side frames 33, where the on-board equipment 70 comprises a first fixation portion 76 fixed to the cross member 34 and a second fixation portion 77 positioned in back of the first fixation portion 76 and fixed to the side frame 33 through a fixation structure X detachable from the side frame when receiving an impact load applied from a vehicle forward side.SELECTED DRAWING: Figure 4
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Description

[Technical Field]

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

[0002] Patent document 1 discloses a front structure of a vehicle that includes a suspension member fixed to a body frame via a connecting member, and a power receiving device attached to the underside of the suspension member and fixed to the body frame via the connecting member.

[0003] In the front structure of the vehicle of Patent Document 1, when an external force is applied from the front or rear, the connecting member bends downward, displacing the power receiving device connected to the connecting member downward, thereby preventing the power receiving device from coming into contact with the storage device located behind the power receiving device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2020-82948 Summary of the Invention [Problem to be solved by the invention]

[0005] In the front structure of the vehicle of Patent Document 1, the power receiving device is fixed to a side frame of the suspension member that extends in the fore-and-aft direction of the vehicle body. Therefore, when a collision load is input from the front, the absorption of the impact load due to deformation of the side frame is hindered, and the impact load is not absorbed sufficiently.

[0006] The member that inhibits deformation of the side frame is not limited to the power receiving device. Similar problems can occur with on-board equipment such as auxiliary machinery that is disposed between the left and right side frames.

[0007] The present invention provides a front structure for a vehicle in which the deformation of the side frames is less likely to be hindered even when on-board equipment is located between the left and right side frames that absorb the impact load by deforming when an impact load is input. [Means for solving the problem]

[0008] The present invention provides A pair of left and right side frames extending in the front-rear direction; a cross member installed between the pair of left and right side frames; an in-vehicle device located between the pair of left and right side frames, The in-vehicle device is a first fixing portion fixed to the cross member; a second fixing portion located rearward of the first fixing portion and fixed to the side frame by a fixing structure that can be dropped off by an impact load from the front of the vehicle; The present invention provides a front structure for a vehicle, comprising:

[0009] According to the present invention, when an impact load is input from the front of the vehicle, the on-board equipment falls off from the side frame at the second fixing portion, so that even when the on-board equipment is located between a pair of left and right side frames, the deformation of the side frame is prevented from being hindered by the on-board equipment. [Effects of the Invention]

[0010] According to the present invention, a front structure of a vehicle can be provided in which the deformation of the side frames is less likely to be hindered, even when on-board equipment is located between a pair of left and right side frames that absorb impact loads by deforming when an impact load is input. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a plan view of a front structure of a vehicle according to an embodiment of the present invention; [Figure 2] 1 is a side view of a front structure of a vehicle according to an embodiment of the present invention; [Figure 3]FIG. 4 is a perspective view showing a subframe and a contactless charger. [Figure 4] FIG. 2 is a plan view showing the subframe and the wireless charger. [Figure 5] FIG. [Figure 6] FIG. 6 is a schematic cross-sectional view taken along line VI-VI in FIG. 3. [Figure 7] FIG. 4 is an explanatory diagram illustrating a process in which a front impact load is input to a subframe. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the following description is merely exemplary in nature and is not intended to limit the present invention, its applications, or its uses.

[0013] 1 and 2 show a front structure of a vehicle according to one embodiment of the present invention. In this embodiment, the vehicle equipped with a front structure 1 according to the present invention is an electric automobile.

[0014] As shown in Figures 1 and 2, the front structure 1 of an electric vehicle includes a dash panel 10 that separates a passenger compartment C from an engine room E in which a drive source such as a motor is located, a pair of left and right front side frames 20 that extend forward from the dash panel 10, and a subframe (also called a "suspension cross member") 30 that is arranged below the front side frames 20.

[0015] A main crash can 61, which is made of a cylindrical body or the like and absorbs impact loads from the front of the vehicle body, extends forward from the front end of each front side frame 20. The pair of left and right main crash cans 61 are connected to each other via a bumper reinforcement 62 that extends in the vehicle body width direction.

[0016] As shown in Figures 3 and 4, the subframe 30 has a pair of left and right suspension link support portions (hereinafter also referred to as "link support portions") 31, a main cross member 32 that connects the link support portions 31 in the vehicle width direction, a pair of left and right extension side frames (hereinafter also referred to as "side frames") 33 that extend forward from the front ends of each link support portion 31, and a front cross member (hereinafter also referred to as "front cross") 34 and a rear cross member (hereinafter also referred to as "rear cross") 35 that connect the side frames 33 in the vehicle width direction at the front and rear ends of the side frames 33.

[0017] Sub-crash cans 63 each made of a cylindrical body or the like are attached to the front ends of the side frames 33 via a set plate or the like. The front ends of the pair of left and right sub-crash cans 63 are connected to each other via a beam member 64 extending in the vehicle body width direction.

[0018] The pair of left and right link support portions 31 are cylindrical and extend in the front-to-rear direction. The pair of left and right link support portions 31 extend generally parallel to each other. A front suspension arm 37 is attached via a bracket 36 to the outer side of each link support portion 31 in the vehicle width direction. A vehicle body fixing portion 41 for fixing the subframe 30 to the floor frame is provided at the rear end of each link support portion 31, and a rear column member 42 for connecting the front side frame 20 and the subframe 30 is provided at the middle portion of the link support portion 31 in the front-to-rear direction (front end of the main cross member 32).

[0019] The main cross member 32 extends in the vehicle width direction and is installed to interconnect a pair of left and right link support members 31 from the rear end to the middle of each link support member 31. The main cross member 32 is flat and its thickness in the up-down direction is smaller than its thickness in the front-to-rear and vehicle width directions. The main cross member 32 is joined at both ends in the vehicle width direction to the inner surfaces and upper surfaces of the link support members 31 in the vehicle width direction by welding or the like.

[0020] Each side frame 33 is cylindrical and extends in the front-to-rear direction. The front of each side frame 33 is positioned further outward in the vehicle width direction than the rear. The distance between the pair of left and right side frames 33 increases toward the front. The rear ends of the side frames 33 are joined to the front ends of the link support parts 31 by welding or the like.

[0021] The front cross 34 is a tubular member extending in the vehicle width direction. The cross section of the front cross 34 perpendicular to the vehicle width direction is a closed rectangular shape. The front cross 34 is installed between the pair of left and right side frames 33 at the front ends of each side frame 33. The front cross 34 is fixed to the side frames 33 at portions closer to the outer sides in the vehicle width direction by fastening members such as bolts.

[0022] A pair of left and right front pillar members 43 are provided on both ends of the front cross member 34 in the vehicle width direction, rising like pillars from the upper surface 34d of the front cross member 34. The upper ends of the front pillar members 43 are joined to the lower surfaces of the front ends of the front side frames 20 by fastening members or the like.

[0023] The rear cross member 35 is a tubular member extending in the vehicle width direction. The cross section of the rear cross member 35 perpendicular to the vehicle width direction is a closed rectangular shape. The rear cross member 35 is installed between the pair of left and right side frames 33 at the rear end of each side frame 33. The rear cross member 35 is joined at both ends in the vehicle width direction to the inner side surfaces of the side frames 33 in the vehicle width direction by welding or the like.

[0024] As shown in Fig. 1, the vehicle includes a battery B for driving an electric drive mechanism (not shown), and a wireless charger 70 that receives electric power from an external source and supplies the received electric power to the battery B. In this embodiment, the battery B is disposed on the passenger compartment C side, and the wireless charger 70 is disposed in the engine compartment E. The battery B and the wireless charger 70 are electrically connected to enable transmission and reception of electric power.

[0025] The contactless charger 70 and its fixing structure X will be described with reference to Figures 1 to 6. As shown in Figures 1 and 2, the contactless charger 70 is disposed between the front cross member 34 and the rear cross member 35.

[0026] As shown in Figure 4, the contactless charger 70 includes a receiving coil 71 that receives magnetic flux generated by passing a current through a transmitting coil embedded in the road surface of a parking lot or the like, generates a current by electromagnetic induction, and stores power in battery B, a rectifier 72 that rectifies the current in the receiving coil 71, and a casing 73 that houses the receiving coil 71 and the rectifier 72.

[0027] As shown in Figures 5 and 6, the casing 73 has a main body 74 in which the receiving coil 71 is stored, a protruding portion 75 in which the rectifier 72 is stored and which protrudes upward from the main body 74, fixing portions 76 and 77 which protrude flange-like from the peripheral portion of the main body 74 in the vehicle width direction for fixing the contactless charger 70 to the subframe 30, and an inclined portion 78 which connects the upper surface of the main body 74 and the rear surface of the protruding portion 75 in a diagonal brace-like manner.

[0028] As shown in FIG. 5, the main body 74 is generally rectangular and flat in the vertical direction. The main body 74 has a generally rectangular bottom surface 74a extending generally horizontally, a front surface 74b extending upward from the front edge of the bottom surface 74a, a rear surface 74c extending upward from the rear edge of the bottom surface 74a, side surfaces 74d extending upward from both left and right side edges of the bottom surface 74a, a front upper surface 74e extending rearward from the upper edge of the front surface 74b, and a rear upper surface 74f extending forward from the upper edge of the rear surface 74c. The front upper surface 74e has a smaller width in the front-to-rear direction than the rear upper surface 74f. A protrusion 75 is disposed between the front upper surface 74e and the rear upper surface 74f.

[0029] 5 and 6, protrusion 75 has a generally rectangular parallelepiped shape that is longer in the vehicle body width direction than in the front-to-rear direction. Protrusion 75 is disposed at a position shifted forward from the center of main body 74 in the front-to-rear direction. Protrusion 75 has a front surface portion 75a extending upward from the rear edge of front upper surface portion 74e, an upper surface portion 75b extending rearward from the upper edge of front surface portion 75a, a rear surface portion 75c extending downward from the rear edge of upper surface portion 75b, and side surface portions 75d extending downward from both side edges of upper surface portion 75b to connect front surface portion 75a and rear surface portion 75c.

[0030] The fixing portions 76, 77 protrude outward in the vehicle width direction from the side surface portions 74d of the main body portion 74. The fixing portions 76, 77 include front fixing portions (first fixing portions) 76 provided on the front right and left sides of the main body portion 74, and rear fixing portions (second fixing portions) 77 provided on the rear right and left sides of the main body portion 74.

[0031] The inclined portion 78 is formed of a plurality of plate members that are triangular in side view. The inclined portion 78 is disposed between the rear surface 75c of the protruding portion 75 and the rear upper surface 74f of the main body 74. The inclined portion 78 is formed so as to slope upward toward the front. The plurality of plate members 78 are arranged side by side at equal intervals in the vehicle width direction from the center of the main body 74 in the vehicle width direction. In this embodiment, the inclined portion 78 is formed of heat dissipation fins for cooling the contactless charger 70.

[0032] The inclined portion 78 has a vertical side portion 78a extending up and down along the rear surface portion 75c, a bottom side portion 78b extending rearward from the lower end of the vertical side portion 78a along the rear upper surface portion 74f, and a hypotenuse side portion 78c connecting the upper end of the vertical side portion 78a and the rear end of the bottom side portion 78b.

[0033] The vertical side 78a is approximately the same height as the rear surface 75c of the protruding portion 75. The bottom side 78b extends from the rear surface 75c to the center of the rear upper surface 74f in the front-to-rear direction. The oblique side 78c rises forward from the center of the rear upper surface 74f in the front-to-rear direction and terminates at the rear upper edge 75e of the protruding portion 75. In this embodiment, the angle α between the oblique side 78c and the bottom side 78b is set to be equal to or greater than 20 degrees and equal to or less than 45 degrees.

[0034] As shown in FIGS. 4 and 6, the main body 74 is located between the side frames 33 in the vehicle width direction, and is disposed across the front cross member 34 and the rear cross member 35 in the front-rear direction.

[0035] The front upper surface portion 74e of the main body portion 74 overlaps with the front cross 34 in the front-to-rear direction and is located below the front cross 34. The front surface portion 74b of the main body portion 74 generally coincides with the front surface 34a of the front cross 34. The front-to-rear dimension of the front upper surface portion 74e generally coincides with that of the front cross 34. In this embodiment, the main body portion 74 is fixed to the front cross 34 at the front fixing portion 76 with the front upper surface portion 74e abutting against the lower surface 34b of the front cross 34.

[0036] At least a portion of the rear upper surface portion 74f of the main body portion 74 overlaps with the rear cross member 35 in the front-to-rear direction and is located below the rear cross member 35. The front-to-rear position of the rear surface portion 74c of the main body portion 74 roughly coincides with the rear surface 35c of the rear cross member 35. The front-to-rear dimension of the rear upper surface portion 74f is larger than that of the rear cross member 35, and an inclined surface 78 is disposed near the front surface 35a of the rear cross member 35. In this embodiment, the main body portion 74 is fixed to the side frame 33 at the rear fixing portion 77 with the rear upper surface portion 74f abutting against the lower surface 35b of the rear cross member 35.

[0037] 6, the protruding portion 75 is disposed between the front cross member 34 and the rear cross member 35 in the front-to-rear direction. The protruding portion 75 overlaps in the up-down direction with the front cross member 34 and the rear cross member 35. The up-down position of the upper surface portion 75b of the protruding portion 75 generally coincides with the up-down position of the upper surfaces 34d, 35d of the front cross member 34 and the rear cross member 35.

[0038] The front surface 75a of the protruding portion 75 is disposed to face the rear surface 34c of the front cross member 34 from behind. The front surface 75a of the protruding portion 75 is a surface facing the front cross member 34. The rear surface 75c of the protruding portion 75 is disposed forward of the rear cross member 35.

[0039] The inclined portion 78 is disposed forward of the rear cross member 35. More specifically, the rear end 78d of the inclined portion 78 extends to the vicinity of the rear cross member 35. In other words, the rear cross member 35 is disposed near the rear end 78d of the inclined portion 78.

[0040] In this embodiment, the vicinity of the rear end 78d of the inclined portion 78 may be a position where the rear cross 35 abuts the inclined portion 78 when a predetermined impact load (for example, a load input to the vehicle body in a full-overlap frontal collision test or an offset frontal collision test such as JNCAP) is input from the front of the vehicle body, and the rear cross 35 may be spaced apart vertically from the inclined portion 78, while its longitudinal position overlaps with the rear end 78d of the inclined portion 78, or the rear cross 35 may be spaced apart from the inclined portion 78.

[0041] 4, the front fixing portion 76 is provided to protrude outward in the vehicle width direction from the front side surface portion 74d of the main body portion 74. The front fixing portion 76 is located below the front cross 34 and is fixed to the front cross 34 via a front fastening member 76a such as a bolt. The front fixing portion 76 and the front cross 34 are fastened together by inserting the front fastening member 76a from below while they are stacked in the vertical direction and screwing it into a weld nut or the like provided on the front cross 34.

[0042] The rear fixing portion 77 is provided to protrude outward in the vehicle width direction from a rear side surface portion 74d of the main body portion 74. The rear fixing portion 77 is located below the rear end of the side frame 33 and is fixed to the side frame 33 via a rear fastening member 77a such as a bolt. With the rear fixing portion 77 and the side frame 33 overlapping in the vertical direction, the rear fastening member 77a is inserted from below and screwed into, for example, a weld nut or the like provided on the rear cross member 35, thereby fixing the contactless charger 70 to the subframe 30.

[0043] The rear fastening portion 77 includes a fastening structure X that can be detached by an impact load from the front of the vehicle. The fastening structure X is configured to break when an impact load is input from the front of the vehicle. In this embodiment, the size (strength) of the rear fastening member (bolt) 77a is set so that when an impact load is input from the front of the vehicle, the rear fastening member 77a breaks, for example, by tension and / or shear, allowing the rear fastening portion 77 to detach from the side frame 33. The strength of the rear fastening member 77a is smaller than that of the front fastening member 76a. The rear fastening member 77a may be configured, for example, by a bolt whose base can be broken when an impact load is input from the front of the vehicle.

[0044] In the vehicle front structure 1 configured in this manner, when an impact load is input from the front of the vehicle, as shown in FIG. 7( a), the beam members 64 and the sub-crash cans 63 move backward while being crushed and deformed, and the side frames 33 also move backward while being crushed and deformed. As the side frames 33 move backward, the front cross members 34 fixed to the front ends of the side frames 33 also move backward. The rear surfaces 34c of the moved forward front cross members 34 come into contact with the front surfaces 75a of the protrusions 75, transmitting part of the impact load to the non-contact charger 70, and a load in the shear direction acts on the rear fastening members 77a of the rear fixing parts 77. As a result, the rear fastening members 77a serving as the fixing structures X between the rear fixing parts 77 and the side frames 33 break, and the connection between the rear fastening members 77a and the side frames 33 is released.

[0045] 7(b), when the contactless charger 70 moves backward, the oblique side portion 78c of the inclined portion 78 comes into contact with the rear cross member 35, and the contactless charger 70 moves along the oblique side portion 78c below and behind the rear cross member 35. At this time, the movement of the rear cross member 35 acts to press the contactless charger 70 downward, so that the fastening member 77a, which is fastened in the vertical direction, is pulled downward from the side frame 33, and the contactless charger 70 detaches from the subframe 30.

[0046] 7(c), as the crushing deformation of the side frame 33 progresses further, the contactless charger 70 is guided by the inclined portion 78 and moves rearward so that the rear cross 35 is positioned on the upper surface 75b of the protruding portion 75. As a result, the protruding portion 75 moves lower than the rear cross 35, which prevents the crushing deformation of the side frame 33 from being hindered, as would be the case if the protruding portion 75 were sandwiched between the front cross 34 and the rear cross 35.

[0047] The vehicle front structure 1 according to the above embodiment provides the following advantages.

[0048] The vehicle front structure 1 includes a pair of left and right side frames 33 extending in the front-rear direction, a front cross member 34 installed between a pair of left and right side frames 33; a non-contact charger 70 as an in-vehicle device located between the pair of left and right side frames 33; The contactless charger 70 a front fixing portion 76 fixed to the front cross member 34; a rear fixing portion 77 that is located rearward of the front fixing portion 76 and is fixed to the side frame 33 in a fixing structure that allows it to fall off when subjected to an impact load from the front of the vehicle; It has.

[0049] According to the present invention, when an impact load is input from the front of the vehicle, the contactless charger 70 falls off from the side frame 33 at the rear fixing portion 77, so that even when the contactless charger 70 is positioned between a pair of left and right side frames 33, the deformation of the side frame 33 is prevented from being hindered by the contactless charger 70.

[0050] The suspension further includes a rear cross member 35 (suspension cross member 30) as a rear member disposed rearward of the front cross member 34. The non-contact charger 70 includes a guide portion 78 that moves the non-contact charger 70 downward when the non-contact charger 70 comes into contact with the front cross 34 due to an impact load from the front of the vehicle.

[0051] According to this configuration, when an impact load is input from the front of the vehicle, the contactless charger 70 can be more reliably moved downward and easily removed.

[0052] The guide unit is provided in the non-contact charger 70, The guide portion is an inclined portion 78 that faces the front surface 35a of the rear cross member 35 and is inclined upward toward the front.

[0053] According to this configuration, when an impact load is input from the front of the vehicle, the inclined portion 78 makes it easier to move the non-contact charger 70 below the rear cross 35, thereby facilitating the non-contact charger 70 to separate from the side frame 33.

[0054] The rear cross member 35 is disposed near the rear end of the inclined portion 78 .

[0055] According to this configuration, when the contactless charger 70 moves rearward, the rear cross member 35 can be more reliably brought into contact with the inclined portion 78.

[0056] The rear fastening member 77a (fixing structure X) of the rear fixing portion 77 breaks when an impact load is input from the front of the vehicle.

[0057] According to this configuration, the rear fastening member 77a is broken by the input of an impact load from the front of the vehicle, and the contactless charger 70 can be easily detached from the side frame 33.

[0058] The contactless charger 70 includes a protrusion 75 having a surface facing the rear surface 34c of the front cross member 34.

[0059] According to this configuration, when an impact load is input from the front of the vehicle, the cross member presses the front bottom surface and protrusion of the contactless charger rearward, making it easy to detach the contactless charger from the side frame.

[0060] The non-contact charger 70 includes a rear upper surface portion 74f extending rearward from the protrusion 75, The inclined portion 78 extends from the rear upper surface portion 74f toward the rear upper edge portion 75e of the protruding portion 75.

[0061] With this configuration, when an impact load is input from the front of the vehicle, the rear cross member 35 can be easily moved to the upper surface 75b of the protruding portion 75 of the contactless charger 70. As in the case where the inclined portion 78 is positioned below the rear upper edge 75e of the protruding portion 75, a step that can occur between the rear surface 75c of the protruding portion 75 and the inclined portion 78 is suppressed, and the movement of the rear cross member 35 can be prevented from being hindered.

[0062] The rear cross member 35 is a part of a suspension cross member (subframe) 30 for supporting the suspension.

[0063] According to this configuration, the contactless charger 70 can be detached from the side frame 33 by utilizing the suspension cross member (subframe) 30 without providing any other member.

[0064] The guide portion 78 is a heat dissipation fin for cooling the non-contact charger 70.

[0065] According to this configuration, the guide portion 78 can be configured using the heat dissipation fins.

[0066] The present invention is not limited to the configurations described in the above embodiments, and various modifications are possible.

[0067] In the present embodiment, the rear fixing portion 77 has been described as being configured such that the rear fastening member 77a breaks when an impact load is applied from the front of the vehicle, but the present invention is not limited to this, and for example, as shown by the two-dot chain line in Fig. 5, the rear fixing portion 77 may be provided with a slit portion 77c extending forward from a hole 77b through which the rear fastening member 77a of the rear fixing portion 77 is inserted. As a result, when an impact load is applied from the front of the vehicle and the contactless charger 70 moves backward, the rear fastening member 77a passes through the slit portion 77c and disengages from the rear fixing portion 77, and the fastening between the rear fixing portion 77 and the side frame 33 is released.

[0068] In this embodiment, a configuration has been described in which the guide portion 78 is provided on the non-contact charger 70 (casing 73), but this is not limited to this. The guide portion 78 may be configured by inclining the rear cross 35 so that it slopes upward toward the front, as shown by the two-dot chain line in Figure 6, or an inclined portion may be attached in front of the rear cross 35.

[0069] In this embodiment, the upper end of the oblique side portion 78c is described as being located at the upper rear edge of the protrusion 75, but this is not limited to this. The upper end of the oblique side portion 78c may be located at a position where the rear cross 35 abuts against a step that may occur between the rear surface 75c of the protrusion 75 and the upper end of the oblique side portion 78c, and does not hinder downward and rearward movement of the contactless charger 70 when an impact load is input, and may be located, for example, below the upper rear edge.

[0070] [Note] The present disclosure includes the following aspects.

[0071] [Aspect 1] A pair of left and right side frames extending in the front-rear direction; a cross member installed between the pair of left and right side frames; an in-vehicle device located between the pair of left and right side frames, The in-vehicle device is a first fixing portion fixed to the cross member; a second fixing portion located rearward of the first fixing portion and fixed to the side frame by a fixing structure that can be dropped off by an impact load from the front of the vehicle; A front structure of a vehicle having:

[0072] [Aspect 2] Further, a rear member is provided which is disposed rearward of the cross member. The in-vehicle device and / or the rear member includes a guide portion that moves the in-vehicle device downward when the in-vehicle device and the rear member come into contact with each other due to an impact load from the front of the vehicle. A front structure of a vehicle according to embodiment 1.

[0073] [Aspect 3] the guidance unit is provided in the in-vehicle device, The guide portion is an inclined portion that faces the front surface of the rear member and is inclined upward toward the front. A front structure of a vehicle according to aspect 2.

[0074] [Aspect 4] The rear member is disposed near the rear end of the inclined portion. A front structure of a vehicle according to embodiment 3.

[0075] [Aspect 5] The fixing structure breaks when an impact load is input from the front of the vehicle. A front structure for a vehicle according to any one of aspects 1 to 4.

[0076] [Aspect 6] The on-vehicle device includes a protrusion having a surface facing the rear surface of the cross member. A front structure for a vehicle according to any one of aspects 1 to 5.

[0077] [Aspect 7] the in-vehicle device includes a rear upper surface portion extending rearward of the protrusion, The inclined portion extends from the rear upper surface portion toward the rear upper edge portion of the protrusion. A front structure of a vehicle according to embodiment 6.

[0078] [Aspect 8] The rear member is a part of a suspension cross member for supporting the suspension. A front structure of a vehicle according to embodiment 2.

[0079] [Aspect 9] the in-vehicle device is a contactless charger, The guide portion is a heat dissipation fin for cooling the non-contact charger. A front structure of a vehicle according to embodiment 2. [Explanation of symbols]

[0080] 1 Front structure 30 Subframe (suspension cross member) 33 Side frame 34 Front cross (cross member) 35 Rear cross (rear member) 70 Non-contact charger (vehicle equipment) 74e Front upper part 74f Rear upper part 75 Protrusion 76 Front fixing part (first fixing part) 77 Rear fixed part (second fixed part) 78 Inclined part (guide part) X fixed structure

Claims

1. A pair of left and right side frames extending in the front-rear direction; a cross member installed between the pair of left and right side frames; an in-vehicle device located between the pair of left and right side frames, The in-vehicle device is a first fixing portion fixed to the cross member; a second fixing portion located rearward of the first fixing portion and fixed to the side frame by a fixing structure that can be dropped off by an impact load from the front of the vehicle; A front structure of a vehicle having:

2. Further, a rear member is provided which is disposed rearward of the cross member. The in-vehicle device and / or the rear member includes a guide portion that moves the in-vehicle device downward when the in-vehicle device and the rear member come into contact with each other due to an impact load from the front of the vehicle. The front structure of a vehicle according to claim 1.

3. the guidance unit is provided in the in-vehicle device, The guide portion is an inclined portion that faces the front surface of the rear member and is inclined upward toward the front. The front structure of a vehicle according to claim 2.

4. The rear member is disposed near the rear end of the inclined portion. The front structure of a vehicle according to claim 3.

5. The fixing structure breaks when an impact load is input from the front of the vehicle. The front structure of a vehicle according to any one of claims 1 to 4.

6. The on-vehicle device includes a front upper surface portion fixed to the underside of the cross member and a protrusion portion having a surface facing the rear surface of the cross member. The front structure of a vehicle according to claim 3.

7. the in-vehicle device includes a rear upper surface portion extending rearward of the protrusion, The inclined portion extends from the rear upper surface portion toward the rear upper edge portion of the protrusion.

7. The front structure of a vehicle according to claim 6.

8. The rear member is a suspension cross member for supporting the suspension. The vehicle front structure according to any one of claims 2 to 4.

9. the in-vehicle device is a contactless charger, The guide portion is a heat dissipation fin for cooling the non-contact charger. The vehicle front structure according to any one of claims 2 to 4.

Citation Information

Patent Citations

  • Vehicle

    JP2020082948A