Vehicle front structure and vehicle body structure

Abstract

The present application discloses a vehicle front structure and body structure, relating to the field of vehicle structure installation, comprising: a front fender, wherein an L-shaped fixing plate is provided on the lower surface of the fender tip at the seam between the front fender and the hood, wherein the L-shaped fixing plate has a horizontal mounting plate; a hood hinge, wherein the front fender mounting bracket and the fixed leaf plate are relatively arranged, wherein the horizontal mounting plate of the L-shaped fixing plate is fixed to the top surface of the fender mounting bracket by screws. A side panel front portion, wherein the fender mounting bracket and the fixed leaf plate are both fixed to the side panel front portion. The present application also discloses a body structure comprising the above-mentioned vehicle front structure. The vehicle front structure and body structure of the present application improve the accuracy of the gap and face difference between the rear tip P7 of the hood and the tip P6 of the fender.

Description

Technical Field

[0001] The present application relates to the field of vehicle structure installation, and in particular to a vehicle front structure and a vehicle body structure. Background Art

[0002] Currently, the fenders and hoods of automobiles are crucial exterior features. Due to styling considerations, many models have gaps and surface differences between the rear hood and the fender. The mating surface is primarily located in a highly visible area on the vehicle's upper surface. The hood's rear apex and the fender's apex serve as the starting point for the mating surface, making it easily visible to customers. Due to limitations in the hood stamping and welding processes, there is a certain distance between the hood's rear apex and the hood hinge's attachment point, creating a cantilevered structure. Furthermore, the inherent stiffness of the hood hinge results in poor stiffness in all directions, leading to low positional accuracy. The fender also forms a cusp in this area. Because the fender is constructed from a single sheet of steel and the stamping process limits the minimum distance between the attachment point and the apex, this also results in poor stiffness and positional accuracy.

[0003] If the hood's rear point deviates from the fender's point in different directions, the gap and flushness between the fender's and hood's rear points will be further exacerbated. Large gaps and flushness can lead to customer complaints. Large flushness can also increase wind noise while the vehicle is in motion. Since the hood's thickness is less than 2.4mm and the hemming's fillet radius is less than 1.2mm, if the hood protrudes too far beyond the fender, the hood's point could protrude, potentially causing injury to pedestrians and car washers.

[0004] In related technologies, such as Figure 1 As shown, the main structures near the mating surface are the fender 1, hood 2, and front side panel 3. The hood 2 is in the closed position. P7 is the rear hood point, formed by the intersection of the rear edge of the hood outer panel and the side edge of the hood outer panel. The angle between these two edges near P7 is generally acute. P6 is the fender point, and P6 and P7 are located on either side of the seam between the hood and fender. P6 and P7 are primarily located on the upper surface of the vehicle body and have face difference and clearance requirements. In this technical field, the gap between the hood and fender is generally 3.5±1mm, and the face difference is 0±1mm.

[0005] like Figure 2As shown, the hood outer panel 2 is in the open state, with one end of the hood hinge 5 fixed to the hood 2 and the other end fixed to the corresponding structure of the side panel front portion 3. On the hood outer panel 2, the distance between the hood rear point P7 and the nearest fixed point of the hood hinge 5 is D3. In order to meet the opening and closing movement requirements of the hood 2, and at the same time subject to the stamping and forming limitations of the hood inner panel and the hemming process requirements of the hood inner and outer panels, the length of D3 cannot be too small. However, the lengthening of D3 will cause the distance between the hood rear point P7 and the hood fixing point to become longer. In addition, the hood rear point is an acute-angle structure, which weakens the Z-axis stiffness of P7 and also brings about the problem of low dimensional accuracy of the hood rear point P7.

[0006] Furthermore, Figure 3 The corresponding structure of the fender is shown (excluding the engine cover 2). P6 is the tip of the fender. The fender is fixed to the front part of the side panel 3 by the second bolt 9 on the side of the front windshield. P8 is the front positioning boundary of the fender near the second bolt 9. The fender is fixed to the lower side of the engine cover by the first bolt 8. P9 is the rear positioning boundary of the fender near the first bolt 8. Figure 3 As shown, P6 is between P8 and P9, and no other fixing points are set between P8 and P9 on the fender. Figure 3 The rearward end of the middle hood hinge 5 does not contact P6; the distance between them is at least 10 mm. Since the fender outer panel is a body covering, its steel plate thickness is generally between 0.6 and 1 mm, and the material yield strength is often between 120 and 200 MPa, which is considered low-strength. This results in weak Z-direction stiffness at the fender tip P6 and poor dimensional accuracy.

[0007] In summary, the stiffness of the fender tip P6 and the hood rear tip P7 are both relatively weak, which results in the gap and surface difference between the hood rear tip P7 and the fender tip P6 being difficult to meet high precision requirements. Summary of the Invention

[0008] In response to the defects in the prior art, the purpose of this application is to provide a vehicle front structure and body structure to improve the accuracy of the gap and surface difference between the rear tip point P7 of the engine hood and the tip point P6 of the fender.

[0009] To achieve the above objectives, the technical solution adopted is: a vehicle front structure, comprising:

[0010] The front fender has an L-shaped fixing plate provided on the lower surface of the fender tip where it is separated from the engine cover, and the L-shaped fixing plate has a horizontal mounting plate;

[0011] The engine hood hinge comprises a fender mounting bracket and a fixed leaf plate which are arranged opposite to each other. The horizontal mounting plate of the L-shaped fixed plate is fixed to the top surface of the fender mounting bracket by screws.

[0012] The front part of the side panel, the fender mounting bracket and the fixed page plate are both fixed to the front part of the side panel.

[0013] Based on the above technical solution, the front fender is provided with a door triangle area mounting flange close to the door, and the front fender is provided with an engine side mounting flap close to the engine; the mounting plates of the door triangle area mounting flange and the engine side mounting flap are in the same horizontal plane, and the horizontal mounting plate of the L-shaped fixed plate is in another horizontal plane.

[0014] Based on the above technical solution, the front part of the side panel includes a front side panel reinforcement plate and a side panel outer panel, the side panel outer panel is provided with a rear upper bracket of the fender, and the front side panel reinforcement plate is provided with an upper bracket of the fender; the door triangle area mounting flange is detachably mounted on the rear upper bracket of the fender, and the engine side mounting flap is detachably mounted on the bracket of the fender.

[0015] On the basis of the above technical solution, the front fender is also provided with a vertical mounting plate in the door triangle area and a front windshield side flange inclined downward; a fender fixing hole is also provided at the top of the side outer panel, and the fender fixing hole is used to match the vertical mounting plate in the door triangle area through screws; the front part of the side panel also includes a fender side panel bracket, and the fender side panel bracket is installed on the top of the side outer panel, and the fender side panel bracket is tightly fixed to the front windshield side flange.

[0016] On the basis of the above technical solution, the side panel front reinforcement plate is provided with two steps at the corners of the top plate and the side plate, the fender upper bracket is installed on the forward step, and the hood hinge inner bracket and hood hinge outer bracket are provided on the rearward step;

[0017] The engine hood hinge also includes a fixed page plate, a movable page plate and a fender mounting bracket. The inner bracket of the engine hood hinge is installed with the fixed page plate, and the outer bracket of the engine hood hinge is installed with the fender mounting bracket; the horizontal mounting plate of the L-shaped fixed plate is installed on the top surface of the fender mounting bracket.

[0018] On the basis of the above technical solution, the fixed page plate and the movable page plate are hinged through a rotating shaft and a bushing, and the fender mounting bracket is welded to the fixed page plate.

[0019] Based on the above technical solution, the fixed page plate includes a rear flange and a vertical plate, and the vertical plate is provided with a hinge installation hole at the bottom and a hinge shaft hole at the top; the hinge installation hole is used to dock with the front structure of the side panel, and the hinge shaft hole is used to install the shaft end.

[0020] The present application also discloses a vehicle body structure, comprising:

[0021] The front structure of the above-mentioned vehicle;

[0022] The engine hood has a gap and a face difference between a rear tip of the engine hood and a fender tip of a front fender of the vehicle front structure adjusted by an L-shaped fixing plate.

[0023] Based on the above technical solution, the front fender is provided with a door triangle area mounting flange close to the door, and the front fender is provided with an engine side mounting flap close to the engine; the mounting plates of the door triangle area mounting flange and the engine side mounting flap are located in the same plane, and the plane is parallel to the plane where the horizontal mounting plate of the L-shaped fixing plate is located.

[0024] On the basis of the above technical solution, the side panel front portion includes a side panel front reinforcement plate and a side panel outer panel, the side panel outer panel is provided with a fender rear upper bracket, and the side panel front reinforcement plate is provided with a fender upper bracket; the door triangular area mounting flange is detachably mounted on the fender rear upper bracket, and the engine side mounting flap is detachably mounted on the fender upper bracket;

[0025] The front fender is also provided with a vertical mounting plate in the door triangle area and a front windshield side flange inclined downward; the top of the side panel outer panel is also provided with a fender fixing hole, which is used to match the vertical mounting plate in the door triangle area through screws; the front part of the side panel also includes a fender side panel bracket, which is installed on the top of the side panel outer panel, and the fender side panel bracket is tightly fixed to the front windshield side flange.

[0026] The beneficial effects of the technical solution provided by this application include:

[0027] 1. The vehicle front structure and body structure of the present application have a new specific fender mounting bracket for the hood hinge to match the horizontal mounting plate of the L-shaped fixing plate. The L-shaped fixing plate extends from the lower surface of the fender tip P6. The L-shaped fixing plate is supported between the fender mounting bracket and the fender tip P6 to provide Z-direction stiffness for the suspended fender tip P6, further improving the accuracy of the gap and face difference between the hood and the fender, and providing a structural basis for the gap and face difference between the rear tip P7 of the hood and the fender tip P6 to meet high precision requirements.

[0028] 2. In the vehicle front structure and body structure of the present application, the mounting plates for the door triangle area mounting flange and the engine side mounting flap are located on the same horizontal plane. At the same time, the horizontal mounting plate of the L-shaped fixing plate is on another horizontal plane. This arrangement greatly improves the installation performance of the front fender. During installation, the front fender can be hung on the vehicle body from front to back. At the same time, after hanging, it is convenient to tighten and fix it at three points through screws or bolts.

[0029] In the complex three-dimensional flange of the front fender, the three mounting points (the flange in the door triangle area, the mounting plate for the engine side flap, and the horizontal mounting plate for the L-shaped fixing plate) are all located on the horizontal plane, making it easy to adjust the front fender individually in the horizontal or vertical direction without affecting the position in other directions during the adjustment.

[0030] 3. The front structure and body structure of the vehicle of the present application are provided with a rear upper bracket of the fender on the side outer panel, an upper bracket of the fender on the side front reinforcement panel, and a flap installed on the engine side matches the bracket on the fender, and a flange installed in the door triangle area matches the rear upper bracket of the fender. The two matching positions are distributed on the front and rear sides of the horizontal mounting plate of the L-shaped fixing plate, providing a good foundation for the Z-direction stiffness of the fender tip P6. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] Figure 1 Schematic diagram of the fender tip P6 and the engine hood rear tip P7 in the prior art;

[0033] Figure 2 Schematic diagram of an engine hood and an engine hood hinge in the prior art (the engine hood is in an open state);

[0034] Figure 3 Schematic diagram of the fixing points of the front fender in the prior art;

[0035] Figure 4 A schematic structural diagram of a front fender provided in an embodiment of the present application;

[0036] Figure 5 A schematic structural diagram of the front portion of the side panel provided in an embodiment of the present application;

[0037] Figure 6 for Figure 5 Exploded diagram;

[0038] Figure 7 A schematic structural diagram of an engine hood hinge provided in an embodiment of the present application;

[0039] Figure 8 for Figure 7 Exploded diagram;

[0040] Figure 9 for Figure 7 A schematic diagram of the structure of the fixed leaf plate and fender mounting bracket;

[0041] Figure 10 A schematic diagram of the front structure of a vehicle provided in an embodiment of the present application;

[0042] Reference numerals:

[0043] 1. Front fender; 101. L-shaped fixing plate; 102. Engine side mounting flap; 103. Front windshield side flange; 104. Door triangle vertical mounting plate; 105. Door triangle mounting flange; 106. U-shaped notch; 2. Engine hood; 3. Side panel front; 301. Fender rear upper bracket; 302. Fender side panel bracket; 303. Engine hood hinge inner bracket;

[0044] 304. Outer bracket of hood hinge; 305. Upper bracket on fender; 306. Front reinforcement plate of side panel; 3060. Step; 307. Side panel outer panel; 3071. First punching hole; 3072. Fender fixing hole; 3073. Side panel fitting surface; 5. Hood hinge; 501. Fixed leaf plate; 5011. Rear flange; 5012. Vertical plate; 5013. Hinge installation through hole; 5014. Hinge shaft hole; 502. Movable leaf plate; 503. Fender mounting bracket; 5031. Mounting docking surface; 504. Bushing; 505. Rotating shaft; 8. First bolt; 9. Second bolt; P6. Fender tip; P7. Rear tip of hood; P8. Front positioning boundary of fender; P9. Rear positioning boundary of fender. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0046] like Figures 4 to 10As shown, the present application discloses an embodiment of a vehicle front structure, which includes a front fender 1, a hood hinge 5 and a side panel front 3. An L-shaped fixing plate 101 is provided on the lower surface of the fender tip P6 at the seam between the front fender 1 and the hood 2, and the L-shaped fixing plate 101 has a horizontal mounting plate.

[0047] The hood hinge 5 comprises a fender mounting bracket 503 and a fixed flap 501, which are positioned opposite each other. The horizontal mounting plate of the L-shaped fixing plate 101 is fixed to the top surface of the fender mounting bracket 503 via screws. Specifically, the horizontal mounting plate of the L-shaped fixing plate 101 is attached to the mounting interface 5031 of the fender mounting bracket 503. The fender mounting bracket 503 and fixed flap 501 are all fixed to the front side panel 3.

[0048] In the front structure of the vehicle of the present application, the hood hinge 5 is newly provided with a specific fender mounting bracket 503, which is used to match the horizontal mounting plate of the L-shaped fixing plate 101. The L-shaped fixing plate 101 extends from the lower surface of the fender tip P6. The L-shaped fixing plate 101 is supported between the fender mounting bracket 503 and the fender tip P6, providing Z-direction stiffness for the suspended fender tip P6, further improving the accuracy of the gap and face difference between the hood and the fender, and providing a structural basis for the gap and face difference between the rear tip P7 of the hood and the fender tip P6 to meet high precision requirements.

[0049] In one embodiment, the front fender 1 is provided with a door triangle mounting flange 105 close to the door. The door triangle mounting flange 105 is provided at the lower edge of the door triangle and is perpendicular to the front fender side panel and is provided toward the interior of the vehicle.

[0050] The front fender 1 is equipped with an engine-side mounting flap 102 near the engine. This flap 102 is shaped like an elongated L. The door triangular mounting flange 105 and the mounting plate of the engine-side mounting flap 102 are located on the same horizontal plane, as are the horizontal mounting plates of the L-shaped fixing plate 101. The horizontal plane of the door triangular mounting flange 105 and the engine-side mounting flap 102 is parallel to the horizontal plane of the horizontal mounting plate of the L-shaped fixing plate 101, and this horizontal plane is also parallel to the horizontal plane of the horizontal mounting plate of the L-shaped fixing plate 101.

[0051] Specifically, the front fender 1 is a detachable part, which is fixed to the side panel front portion 3 or the engine hood hinge 5 by a number of bolts or nuts.

[0052] In the front structure of the vehicle of the present application, the mounting plates of the door triangle area mounting flange 105 and the engine side mounting flap 102 are located on the same horizontal plane. At the same time, the horizontal mounting plate of the L-shaped fixing plate 101 is on another horizontal plane. This arrangement greatly improves the installation performance of the front fender 1. During installation, the front fender 1 can be hung on the vehicle body from front to back. At the same time, after hanging, it is convenient to tighten and fix it at three points by screws or bolts.

[0053] In the complex three-dimensional flange of the front fender, the three installation points (the door triangle area installation flange 105, the engine side installation flap 102 installation plate and the horizontal installation plate of the L-shaped fixing plate 101) are all located in the horizontal plane, so that the front fender can be adjusted separately in the horizontal direction or vertical direction without affecting the position in other directions during the adjustment.

[0054] Furthermore, the side panel front portion 3 includes a side panel front reinforcement plate 306 and a side panel outer plate 307 . The side panel front reinforcement plate 306 faces forward, and the side panel outer plate 307 faces backward. The side panel front reinforcement plate 306 and the side panel outer plate 307 are welded and fixed via a long fitting surface.

[0055] The side outer panel 307 is provided with a fender rear upper bracket 301 , and the side front reinforcement panel 306 is provided with a fender upper bracket 305 .

[0056] Specifically, a first punched hole 3071 is defined below the triangular area of ​​the side outer panel 307. The fender rear upper bracket 301 is secured to the first punched hole 3071 via screws. The door triangular area mounting flange 105 is removably mounted to the fender rear upper bracket 301. Specifically, the door triangular area mounting flange 105 is secured to the fender rear upper bracket 301 via screws. The engine-side mounting flap 102 is removably mounted to the fender upper bracket 305.

[0057] Specifically, the top end surface of the fender upper bracket 305 and the top end surface of the fender rear upper bracket 301 are in the same horizontal plane.

[0058] In the front structure of the vehicle of the present application, the side outer panel 307 is provided with a fender rear upper bracket 301, the side front reinforcement plate 306 is provided with a fender upper bracket 305, and the engine side mounting flap 102 is matched with the fender upper bracket 305, and the door triangle area mounting flange 105 is matched with the fender rear upper bracket 301. The two matching positions are distributed on the front and rear sides of the horizontal mounting plate of the L-shaped fixing plate 101, providing a good foundation for the Z-direction stiffness of the fender tip P6.

[0059] Based on the above technical solution, the front fender 1 is further provided with a front windshield side flange 103 that is tilted downward. The front windshield side flange 103 first turns inward and then downward at the front edge of the triangular area to form a three-dimensional flange structure. The front fender 1 is also provided with a vertical mounting plate 104 for the door triangular area, which extends downward from the upper edge of the triangular area.

[0060] A fender fixing hole 3072 is also provided on the top of the side outer panel 307 . The fender fixing hole 3072 is opened on the front side of the triangular area of ​​the side outer panel 307 . The fender fixing hole 3072 is used to match the vertical mounting plate 104 of the door triangular area through screws.

[0061] The front side panel 3 also includes a fender side panel bracket 302, which is mounted on the top of the side panel outer panel 307. The front windshield side flange 103 is closely fixed to the fender side panel bracket 302. Specifically, the fender side panel bracket 302 is mounted on the side panel mating surface 3073 at the top of the side panel outer panel 307. The fender side panel bracket 302 has a mounting plate, the bottom of which is fastened to the main structure of the front side panel. The mounting plate provides a mounting surface for the front windshield side flange 103.

[0062] Preferably, a U-shaped notch 106 is provided on the side flange 103 of the front windshield, and nuts are embedded in the mounting uprights of the fender side bracket 302 , and the U-shaped notches 106 are aligned with the U-shaped notches 106 , so as to facilitate detachable installation and fixation.

[0063] Furthermore, the engine-side mounting flap 102 of the front fender 1, located below the side edge of the hood 2, is located in a horizontal plane. The fender boundary on the side of the engine-side mounting flap 102 near the front fender tip P6 is P9. Because the exterior surface of the front fender 1 from trimming P8 to P9 is curved, and the seam separating the front fender 1 and the hood 2 is a 3D curve, the flange of the front fender 1 is three-dimensional. To avoid wrinkling and lamination defects in the front fender 1 during three-dimensional flanging, the flange width of the front fender 1 from trimming P8 to P9 should not be too wide, typically 3 to 5 mm.

[0064] The flange of the front fender 1 on the side of the front windshield is the front windshield side flange 103. The front windshield side flange 103 starts from the rounded corner of the vehicle's exterior shape, tilts obliquely downward, and points to the front windshield. There is a U-shaped notch 106 on the front windshield side flange 103. The front windshield side flange 103 is close to the fender trimming edge of the fender tip P6, and the boundary is P8. P6 is located between P8 and P9. The present application sets an L-shaped fixing plate 101 on the lower surface of the fender tip P6. The L-shaped fixing plate 101 is designed to provide fixed support between P8 and P9. The L-shaped fixing plate 101 is first flanged downward in a relatively straight section of the front fender 1, and then returns horizontally in the direction toward the front of the vehicle to form a horizontal mounting plate, that is, the horizontal mounting plate is on a horizontal plane.

[0065] In one embodiment, the side front reinforcement plate 306 is provided with two steps 3060 at the corners of the top and side panels. The fender upper bracket 305 is provided on the front step 3060, and the hood hinge inner bracket 303 and hood hinge outer bracket 304 are provided on the rear step 3060. Specifically, the hood hinge inner bracket 303 and the hood hinge outer bracket 304 each have a vertical mounting plate.

[0066] Specifically, the fender upper bracket 305 is used to dock with and mount the engine-side mounting flap 102. The top surface of the fender upper bracket 305 serves as a horizontal mounting plate. The hood hinge 5 also includes a fixed flap 501, a movable flap 502, and a fender mounting bracket 503. The fixed flap 501 is mounted to the inner hood hinge bracket 303, while the fender mounting bracket 503 is mounted to the outer hood hinge bracket 304. The fender mounting surface 101 is mounted to the top surface of the fender mounting bracket 503.

[0067] Specifically, the inner hood hinge bracket 303 is secured to the fixed leaf plate 501 through the allowance mounting holes, while the outer hood hinge bracket 304 is secured to the fender mounting bracket 503 through the allowance mounting holes. For example, a 10mm mounting hole is provided and secured with a 6mm bolt, leaving allowance for fine-tuning in height and fore-aft directions, further improving the flushness accuracy between the rear hood point P7 and the fender point P6.

[0068] The front structure of the vehicle of the present application, the two steps 3060 of the side front reinforcement plate 306 can be used to install the fender upper bracket 305, the engine hood hinge inner bracket 303 and the engine hood hinge outer bracket 304, and provide a mounting position for the engine side mounting flap 102, and indirectly provide a mounting position for the horizontal mounting plate of the L-shaped fixing plate 101, providing Z-direction stiffness for the fender tip P6.

[0069] Furthermore, the fixed leaf plate 501 and the movable leaf plate 502 are hingedly connected via a rotating shaft 505 and a bushing 504. The fender mounting bracket 503 is welded to the fixed leaf plate 501. Specifically, the movable leaf plate 502 is sandwiched between the fixed leaf plate 501 and the fender mounting bracket 503. The bushing 504 is sleeved onto the end of the rotating shaft 505, and the rotating shaft 505 rotates within the bushing 504.

[0070] In the vehicle front structure of the present application, the hood hinge 5 also includes a fixed leaf plate 501 and a fender mounting bracket 503. It does not adopt an integral structure, but is connected by two different stamping parts, which improves material utilization, reduces stamping complexity, and reduces manufacturing costs.

[0071] Furthermore, the fixed leaf plate 501 includes a rear flange 5011 and a vertical plate 5012. The vertical plate 5012 is provided with a hinge installation hole 5013 at the bottom and a hinge shaft hole 5014 at the top. The hinge installation hole 5013 is used to connect to the structure of the side panel front portion 3, and the hinge shaft hole 5014 is used to install the end of the shaft 505.

[0072] The present application also discloses an embodiment of a body structure, which includes the above-mentioned vehicle front structure and the engine hood 2. The gap and surface difference between the engine hood rear point P7 of the engine hood 2 and the fender tip point P6 of the front fender 1 of the vehicle front structure can be adjusted by an L-shaped fixing plate 101.

[0073] Regarding the vehicle body structure, in one embodiment, the front fender 1 is provided with a door triangle mounting flange 105 close to the door. The door triangle mounting flange 105 is provided at the lower edge of the door triangle and is perpendicular to the front fender side panel and is provided toward the interior of the vehicle.

[0074] The front fender 1 is provided with an engine-side mounting flap 102 in the direction close to the engine. The engine-side mounting flap 102 is in the shape of an elongated L. The mounting plate of the door triangle mounting flange 105 and the engine-side mounting flap 102 are located on the same horizontal plane, and the horizontal mounting plate of the L-shaped fixing plate 101 is also located on the same horizontal plane. The horizontal plane where the door triangle mounting flange 105 and the engine-side mounting flap 102 are located is parallel to the horizontal plane where the horizontal mounting plate of the L-shaped fixing plate 101 is located, and this horizontal plane is parallel to the horizontal plane where the horizontal mounting plate of the L-shaped fixing plate 101 is located. Specifically, the front fender 1 is a detachable part and is fixed to the front part of the side panel 3 or the engine hood hinge 5 by a number of bolts or nuts.

[0075] In the body structure of the present application, the mounting plates of the door triangle area mounting flange 105 and the engine side mounting flap 102 are located on the same horizontal plane. At the same time, the horizontal mounting plate of the L-shaped fixing plate 101 is on another horizontal plane. This arrangement greatly improves the installation performance of the front fender 1. During installation, the front fender 1 can be hung on the body from front to back. At the same time, after hanging, it is convenient to tighten and fix it at three points by screws or bolts.

[0076] In the complex three-dimensional flange of the front fender, the three installation points (the door triangle area installation flange 105, the engine side installation flap 102 installation plate and the horizontal installation plate of the L-shaped fixing plate 101) are all located in the horizontal plane, so that the front fender can be adjusted separately in the horizontal direction or vertical direction without affecting the position in other directions during the adjustment.

[0077] Regarding the vehicle body structure, the side front portion 3 further comprises a side front reinforcement plate 306 and a side outer panel 307. The side front reinforcement plate 306 faces forward, while the side outer panel 307 faces rearward. The side front reinforcement plate 306 and the side outer panel 307 are welded together via a long mating surface. The side outer panel 307 is provided with a fender rear upper bracket 301, while the side front reinforcement plate 306 is provided with a fender upper bracket 305.

[0078] Specifically, a first punched hole 3071 is defined below the triangular area of ​​the side outer panel 307. The fender rear upper bracket 301 is secured to the first punched hole 3071 via screws. The door triangular area mounting flange 105 is removably mounted to the fender rear upper bracket 301. Specifically, the door triangular area mounting flange 105 is secured to the fender rear upper bracket 301 via screws. The engine-side mounting flap 102 is removably mounted to the fender upper bracket 305.

[0079] Specifically, the top end surface of the fender upper bracket 305 and the top end surface of the fender rear upper bracket 301 are in the same plane.

[0080] In the vehicle body structure of the present application, the side outer panel 307 is provided with a fender rear upper bracket 301, the side front reinforcement plate 306 is provided with a fender upper bracket 305, and the engine side mounting flap 102 is matched with the fender upper bracket 305, and the door triangle area mounting flange 105 is matched with the fender rear upper bracket 301. The two matching positions are distributed on the front and rear sides of the horizontal mounting plate of the L-shaped fixing plate 101, providing a good foundation for the Z-direction stiffness of the fender tip P6.

[0081] Regarding the vehicle body structure, based on the above technical solution, the front fender 1 is further provided with a front windshield side flange 103 that tilts diagonally downward. The front windshield side flange 103 first turns inward and then downward at the front edge of the triangular area, forming a three-dimensional flange structure. The front fender 1 is also provided with a vertical mounting plate 104 for the door triangular area, extending downward from the upper edge of the triangular area.

[0082] A fender fixing hole 3072 is also provided on the top of the side outer panel 307 . The fender fixing hole 3072 is opened on the front side of the triangular area of ​​the side outer panel 307 . The fender fixing hole 3072 is used to match the vertical mounting plate 104 of the door triangular area through screws.

[0083] The front side panel 3 also includes a fender side panel bracket 302, which is mounted on top of the side panel outer panel 307. The front windshield side flange 103 is closely fixed to the fender side panel bracket 302. Specifically, the fender side panel bracket 302 has a mounting plate, the bottom of which is fastened to the main structure of the front side panel, and the mounting plate provides a mounting surface for the front windshield side flange 103.

[0084] Preferably, a U-shaped notch 106 is provided on the side flange 103 of the front windshield, and nuts are embedded in the mounting uprights of the fender side bracket 302 , and the U-shaped notches 106 are aligned with the U-shaped notches 106 , so as to facilitate detachable installation and fixation.

[0085] Regarding the vehicle body structure, in one embodiment, the side front reinforcement plate 306 is provided with two steps 3060 at the corners of the top plate and the side plate, the fender upper bracket 305 is provided toward the front step 3060, and the engine hood hinge inner bracket 303 and the engine hood hinge outer bracket 304 are provided toward the rear step 3060.

[0086] Specifically, the fender upper bracket 305 is used to dock and mount the engine-side mounting flap 102. The hood hinge 5 also includes a fixed flap 501, a movable flap 502, and a fender mounting bracket 503. The fixed flap 501 is mounted on the inner hood hinge bracket 303, while the fender mounting bracket 503 is mounted on the outer hood hinge bracket 304. The horizontal mounting plate of the L-shaped fixing plate 101 is mounted on the top surface of the fender mounting bracket 503.

[0087] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0088] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0089] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand and implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A vehicle front structure, characterized in that: include: The front fender (1) has an L-shaped fixing plate (101) provided on the lower surface of the fender tip (P6) at the parting point between the front fender (1) and the engine cover (2), wherein the L-shaped fixing plate (101) has a horizontal mounting plate; An engine cover hinge (5) comprises a fender mounting bracket (503) and a fixed leaf plate (501) arranged opposite to each other, wherein the horizontal mounting plate of the L-shaped fixed plate (101) is fixed to the top surface of the fender mounting bracket (503) by screws; A side panel front portion (3), wherein the fender mounting bracket (503) and the fixed leaf plate (501) are both fixed to the side panel front portion (3); The front fender (1) is provided with a door triangular area mounting flange (105) in a direction close to the vehicle door, and the front fender (1) is provided with an engine side mounting flap (102) in a direction close to the engine; the mounting plates of the door triangular area mounting flange (105) and the engine side mounting flap (102) are located in one horizontal plane, and the horizontal mounting plate of the L-shaped fixing plate (101) is located in another horizontal plane; The side panel front portion (3) comprises a side panel front reinforcement plate (306) and a side panel outer plate (307); the side panel outer plate (307) is provided with a fender rear upper bracket (301); the side panel front reinforcement plate (306) is provided with a fender upper bracket (305); the door triangular area mounting flange (105) is detachably mounted on the fender rear upper bracket (301); the engine side mounting flap (102) is detachably mounted on the fender upper bracket (305); The side front reinforcement plate (306) is provided with two steps (3060) at the corners of the top plate and the side plate, the fender upper bracket (305) is mounted on the front step (3060), and the engine hood hinge inner bracket (303) and the engine hood hinge outer bracket (304) are provided on the rear step (3060); The hood hinge (5) further comprises a fixed page plate (501), a movable page plate (502) and a fender mounting bracket (503); the hood hinge inner bracket (303) is mounted on the fixed page plate (501), and the hood hinge outer bracket (304) is mounted on the fender mounting bracket (503); and the horizontal mounting plate of the L-shaped fixing plate (101) is mounted on the top surface of the fender mounting bracket (503).

2. The vehicle front structure according to claim 1, wherein: The front fender (1) is further provided with a vertical mounting plate (104) in the vehicle door triangle area and a front windshield side flange (103) tilted obliquely downward; the top of the side outer panel (307) is further provided with a fender fixing hole (3072), and the fender fixing hole (3072) is used to match the vertical mounting plate (104) in the vehicle door triangle area through screws; the side front portion (3) further includes a fender side bracket (302), and the fender side bracket (302) is installed on the top of the side outer panel (307), and the fender side bracket (302) is tightly fixed to the front windshield side flange (103).

3. The vehicle front structure according to claim 1, wherein: The fixed page plate (501) and the movable page plate (502) are hinged via a rotating shaft (505) and a bushing (504), and the fender mounting bracket (503) is welded to the fixed page plate (501).

4. The vehicle front structure according to claim 3, wherein: The fixed leaf plate (501) comprises a rear flange (5011) and a vertical plate (5012), wherein the vertical plate (5012) is provided with a hinge installation hole (5013) at the bottom and a hinge shaft hole (5014) at the top; the hinge installation hole (5013) is used for docking with the side panel front portion (3) structure, and the hinge shaft hole (5014) is used for installing the end of the shaft (505).

5. A vehicle body structure, characterized in that: Include: The vehicle front structure according to claim 1; The engine hood (2) has a rear tip point (P7) thereof and a fender tip point (P6) of a front fender (1) of the vehicle front structure, wherein the gap and the surface difference between the engine hood (2) are adjusted by an L-shaped fixing plate (101).

6. The vehicle body structure according to claim 5, wherein: The side panel front portion (3) comprises a side panel front reinforcement plate (306) and a side panel outer plate (307); the side panel outer plate (307) is provided with a fender rear upper bracket (301); the side panel front reinforcement plate (306) is provided with a fender upper bracket (305); the door triangular area mounting flange (105) is detachably mounted on the fender rear upper bracket (301); the engine side mounting flap (102) is detachably mounted on the fender upper bracket (305); The front fender (1) is further provided with a vertical mounting plate (104) in the vehicle door triangle area and a front windshield side flange (103) tilted obliquely downward; the top of the side outer panel (307) is further provided with a fender fixing hole (3072), and the fender fixing hole (3072) is used to match the vertical mounting plate (104) in the vehicle door triangle area through screws; the side front portion (3) further includes a fender side bracket (302), and the fender side bracket (302) is installed on the top of the side outer panel (307), and the fender side bracket (302) is tightly fixed to the front windshield side flange (103).

Images