Hood hinge structure and vehicle

Abstract

This invention provides a hood hinge structure and a vehicle. The hood hinge structure includes a connecting seat for connecting to the hood, a fixing seat for mounting on the vehicle body, and a first link and a second link. Both the first link and the second link are hinged between the connecting seat and the fixing seat, forming a four-bar linkage with the connecting seat and the fixing seat. When the hood is closed, viewed from the left-right direction of the vehicle, there is a preset distance, no greater than 10mm, between the intersection point K of the extension lines of the first link and the second link and the rear tip P of the hood. The hood hinge structure of this invention sets the preset distance range between the intersection point K of the extension lines of the first link and the second link and the rear tip P of the hood, ensuring that the movement trajectory of the rear tip P of the hood and the rear tip S of the lower edge of the hood tends to move away from the rear of the hood and fender seam. This prevents the rear tip S of the lower edge of the hood from rotating and overlapping with the fender, thereby helping to avoid paint peeling on the fender.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a hood hinge structure; furthermore, this invention also relates to a vehicle equipped with the hood hinge structure. Background Technology

[0002] A hinge connects the hood to the body of a car. With the development of the automotive industry and the continuous increase in vehicle speed, vibrations and aerodynamic factors during vehicle operation have become increasingly important. The design of the hood hinge needs to prevent the hood from opening accidentally during driving, while also ensuring better sealing to meet aerodynamic requirements. The structure of hood hinges is also becoming increasingly complex, such as hinges with locking devices to ensure the hood can close safely under high-speed driving and bumpy road conditions. However, existing hinge technology has a structural flaw that causes the rear sharp corner of the lower edge of the hood to hit the fender upon opening, resulting in paint damage and affecting the vehicle's overall refinement. Summary of the Invention

[0003] In view of this, the present invention aims to provide a hood hinge structure to prevent damage to the fenders during hood opening.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A hood hinge structure includes a connecting seat for connecting to the hood, a fixed seat for mounting on the vehicle body, and a first link and a second link, wherein the first link and the second link are both hinged between the connecting seat and the fixed seat, and together with the connecting seat and the fixed seat, form a four-bar linkage.

[0006] With the hood closed, when viewed from the left-right direction of the vehicle, there is a preset distance between the intersection point K of the extension lines of the first link and the second link and the rear tip P of the hood, and the preset distance is no greater than 10mm.

[0007] Furthermore, in the closed state of the hood, the included angle α between the first link and the second link is between 8° and 11°.

[0008] Furthermore, in the closed state of the hood, the distance L1 between the hinge point N of the second link and the connecting seat and the rear sharp corner S of the lower edge of the hood in the longitudinal direction of the vehicle is not greater than 70mm.

[0009] Furthermore, the length of the first connecting rod is greater than that of the second connecting rod; in the closed state of the cover, the hinge point M between the first connecting rod and the connecting seat is higher than the hinge point N between the second connecting rod and the connecting seat.

[0010] Furthermore, the length of the first connecting rod is greater than that of the second connecting rod; in the closed state of the cover, the hinge point O between the first connecting rod and the fixed seat is higher than the hinge point Q between the second connecting rod and the fixed seat.

[0011] Furthermore, the mounting base is provided with a mounting part, which is used to mount the mounting base on the vehicle body and can adjust the vertical position of the mounting base on the vehicle body.

[0012] Furthermore, the mounting part includes a mounting hole provided on the fixed base, the mounting hole being a rectangular hole extending along the vertical direction of the vehicle.

[0013] Furthermore, the connecting seat includes a top plate and a vertical plate disposed on the side of the top plate near the outside of the vehicle;

[0014] The vertical plate extends downward along the vertical direction of the vehicle, and the first connecting rod and the second connecting rod are both hinged to the vertical plate. The top plate is used to connect with the engine cover.

[0015] Furthermore, the top plate is provided with a connecting hole for connecting the connecting seat to the hood, and the connecting hole is a rectangular hole extending along the left-right direction of the vehicle.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The hood hinge structure of the present invention forms a four-bar linkage through a first link 5, a second link 6, a connecting seat 3, and a fixing seat 4. This facilitates the stability of the hood 1 during opening and closing. By setting a preset distance between the intersection point K of the extension lines of the first link 5 and the second link 6 and the rear tip P of the hood, the movement trajectory of the rear tip P of the hood and the rear tip S of the lower edge of the hood 1 tends to move away from the rear part of the seam between the hood 1 and the fender 2. This helps to prevent the rear tip S of the lower edge of the hood 1 from rotating inward toward the body and overlapping with the fender 2, thereby maintaining a normal gap between the rear tip S of the lower edge of the hood 1 and the fender 2. This effectively prevents the rear tip S of the lower edge of the hood 1 from hitting the fender 2, thus preventing paint chipping on the fender 2.

[0018] Furthermore, the included angle α between the first and second links is limited to between 8° and 11°. This not only ensures the movement trajectory of the rear tip P of the hood and the rear tip S of the lower edge of the hood, preventing the rear tip S of the lower edge of the hood from damaging the fender, but also provides stable support, allowing the hood to fit tightly against the vehicle body and preventing it from swaying up and down or shifting left and right. It also makes opening the hood easier and reduces space occupancy. By limiting the distance L1 between the hinge point N of the second link and the connecting seat and the rear tip S of the lower edge of the hood, the movement trajectory of the rear tip P of the hood and the rear tip S of the lower edge of the hood is ensured, preventing the rear tip S of the lower edge of the hood from damaging the fender.

[0019] Secondly, the length of the first link is greater than that of the second link, which allows the first link to guide the movement of the hood within a larger range during the opening process, thereby improving the opening effect of the hood. The second link, in conjunction with the first link, provides support for the hood at different height positions.

[0020] Furthermore, making the length of the first link greater than the second link improves the support effect on the hood, and making the hinge point O higher than the hinge point Q ensures that a suitable gap is maintained between the hood and surrounding components when closed, preventing interference problems. This allows the mounting section to adjust the position of the fixing seat on the vehicle body, improving the flexibility of the fixing seat's arrangement and thus meeting the layout requirements of the hood hinge structure. The rectangular mounting holes in the mounting section provide operating space for adjusting the vertical position of the fixing seat on the vehicle body, and the simple structure of the rectangular holes facilitates implementation. The top plate in the connecting seat facilitates the connection between the connecting seat and the hood, while the vertical plate facilitates the installation of the first and second links. The simple structure of the connecting seat also facilitates manufacturing. The connecting holes are rectangular holes extending along the left-right direction of the vehicle, facilitating the adjustment of the position of the connecting seat and the hood in the left-right direction, further satisfying the flexibility of the connecting seat's layout.

[0021] Another object of the present invention is to provide a vehicle having the hood hinge structure described above.

[0022] The vehicle described in this invention, by setting the hood hinge structure as described above, helps to prevent damage to the fenders during the opening of the hood, thereby helping to ensure the refinement of the vehicle. Attached Figure Description

[0023] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the hood hinge structure described in Embodiment 1 of the present invention;

[0025] Figure 2 This is a partial structural diagram of the hood hinge structure described in Embodiment 1 of the present invention;

[0026] Figure 3 This is a schematic diagram of the four-bar linkage described in Embodiment 1 of the present invention from one perspective.

[0027] Figure 4 This is a schematic diagram of the four-bar linkage described in Embodiment 1 of the present invention from another perspective;

[0028] Figure 5 This is a schematic diagram of the structure of the first connecting rod according to Embodiment 1 of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the second connecting rod according to Embodiment 1 of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the fixing base according to Embodiment 1 of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of the movable seat according to Embodiment 1 of the present invention;

[0032] Figure 9 The movement trajectory of the rear tip P of the hood as described in Embodiment 1 of the present invention before and after improvement;

[0033] Figure 10 The movement trajectory of the rear sharp corner S of the lower edge of the hood as described in Embodiment 1 of the present invention before and after improvement.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Hood; 2. Fender; 3. Connecting seat; 4. Mounting seat; 5. First connecting rod; 6. Second connecting rod;

[0036] 101. Reinforcing plate;

[0037] 300. Connecting hole; 301. Top plate; 302. Vertical plate; 3021. Extension part;

[0038] 400. Mounting hole; 401. First corner; 402. Second corner; 403. Third corner; 404. Second reinforcing flange; 405. Protrusion;

[0039] 501. Front section; 502. Rear section; 5021. First section; 5022. Second section; 503. First reinforced flange;

[0040] 601. Part One; 602. Part Two. Detailed Implementation

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0042] In the description of this invention, it should be noted that the directional terms used in this embodiment, such as "up," "down," "left," "right," "front," and "rear," are defined based on the vertical, horizontal, and longitudinal directions of the vehicle. Specifically, the vertical direction of the vehicle is the height direction (Z-direction), the longitudinal direction is the length direction (X-direction), and the horizontal direction is the width direction (Y-direction). Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," "linking," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0044] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] Example 1

[0046] This embodiment relates to a hood hinge structure to solve the problem in the prior art where, at the moment the hood 1 is opened, the rear sharp corner S of the lower edge of the hood rotates inward toward the body and overlaps with the fender 2, causing the rear sharp corner S to hit the fender 2 and causing the fender 2 to lose paint.

[0047] In terms of overall structure, the hood hinge structure described in this embodiment includes a connecting seat 3 for connecting to the hood 1, a fixing seat 4 for mounting on the vehicle body, and a first link 5 and a second link 6. The first link 5 and the second link 6 are both hinged between the connecting seat 3 and the fixing seat 4, and together with the connecting seat 3 and the fixing seat 4, they form a four-bar linkage mechanism.

[0048] With the hood 1 closed, when viewed from the left and right direction of the vehicle, there is a preset distance between the intersection point K of the extension lines of the first link 5 and the second link 6 and the rear tip P of the hood, and the preset distance is no more than 10mm.

[0049] The hood hinge structure described in this embodiment forms a four-bar linkage through the first link 5, the second link 6, the connecting seat 3, and the fixing seat 4, which helps ensure the stability of the hood 1 during opening and closing. By setting a preset distance range between the intersection point K of the extension lines of the first link 5 and the second link 6 and the rear tip P of the hood, the movement trajectory of the rear tip P of the hood and the rear tip S of the lower edge of the hood 1 tends to move away from the rear part of the seam between the hood 1 and the fender 2. This helps to prevent the rear tip S of the lower edge of the hood 1 from rotating inward toward the body and overlapping with the fender 2, thereby maintaining a normal gap between the rear tip S of the lower edge of the hood 1 and the fender 2. This effectively prevents the rear tip S of the lower edge of the hood 1 from hitting the fender 2 and causing paint damage to the fender 2.

[0050] Based on the above general introduction, an exemplary structure of the hood hinge structure described in this embodiment is shown in Figures 1 to 5. Considering that the hood hinge structure is symmetrically arranged on the left and right sides of the hood 1 and between the hood and the vehicle body, only the hood hinge structure located on one side is shown in the figure, and the hood hinge structure in the figure is in the closed state of the hood 1.

[0051] Regarding the rear tip P of the hood, it should be noted that, in the longitudinal direction of the vehicle, the rear edge of the hood 1 is an arc shape with the center protruding forward. Therefore, the left and right ends of the rear edge of the hood 1 each have a rear tip P, with the tip of the rear tip P facing the rear of the vehicle. In this embodiment, a circular area with a radius of 10mm and centered on the rear tip P is the selectable location area for the intersection point K. Preferably, the intersection point K is located behind the rear tip P. Of course, as long as the intersection point K is located within this circular area (excluding the outer contour of the circular area), it can be ensured that the rear tip P of the hood will not damage the fender 2 and cause paint chipping on the fender 2.

[0052] As a preferred embodiment, the preset distance between the intersection point K of the extension lines of the first link 5 and the second link 6 and the rear tip P of the hood is preferably 0, that is, the intersection point K overlaps with the rear tip P of the hood. This allows the four-bar linkage to rotate around the rear tip P of the hood as the axis. At the moment the hood 1 is opened, the rear tip S of the lower edge of the hood 1 will not rotate or overlap with the fender 2, thereby helping to prevent paint peeling from the fender 2.

[0053] In other embodiments, the preset distance between the intersection point K and the rear tip P of the hood in this embodiment may be, for example, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 8mm, 9mm, or 9.9mm. When the preset distance between the intersection point K and the rear tip P of the hood is greater than or equal to 10mm, at the moment the hood 1 is opened, the rear tip S of the lower edge of the hood 1 will still have the problem of rotation and overlap with the fender 2, thus causing the fender 2 to still have the problem of paint peeling.

[0054] As a preferred implementation method, such as Figure 2 As shown, when the hood 1 is closed, the included angle α between the first link 5 and the second link 6 is between 8° and 11°. This not only ensures that the movement trajectories of the rear tip P of the hood and the rear tip S of the lower edge of the hood 1 tend to move away from the rear end of the seam between the hood 1 and the fender 2, preventing the rear tip S of the lower edge of the hood 1 from damaging the fender 2, but also provides stable support, allowing the hood 1 to fit tightly against the vehicle body, preventing the hood 1 from wobbling up and down or shifting left and right, and making the opening of the hood 1 more convenient. If the included angle α is greater than 11°, the height difference between the same ends of the first link 5 and the second link 6 will increase, thereby increasing the installation space of the hood hinge structure. In specific implementations, the included angle α can be, for example, 8°, 8.5°, 9°, 9.5°, 10°, 10.5°, or 11°.

[0055] As a structural example, in this embodiment, when the hood 1 is closed, the distance L1 between the hinge point N of the second link 6 and the connecting seat 3 and the rear tip S of the lower edge of the hood 1 in the longitudinal direction of the vehicle is no greater than 70mm. This arrangement also helps to ensure the movement trajectory of the rear tip P of the hood and the rear tip S of the lower edge of the hood 1, so that the rear tip S of the lower edge of the hood 1 will not damage the fender 2. At the same time, it also helps to ensure that when the hood 1 is closed, the rear tip S of the lower edge of the hood 1 will not protrude excessively forward or backward, avoiding interference with components in the front of the vehicle or the engine compartment, and also helps to maintain the stability of the hood 1 when closed. In specific implementations, the distance L1 can be, for example, 10mm, 20mm, 30mm, 40mm, 50mm, 60mm, 65mm, 68mm, 69mm, or 70mm, etc.

[0056] In a preferred embodiment, the length of the first link 5 is greater than that of the second link 6, and it is located above the second link 6. The front ends of both the first link 5 and the second link 6 are hinged to the fixed base 4, and the rear ends of both the first link 5 and the second link 6 are hinged to the connecting base 3.

[0057] like Figure 2 and Figure 3As shown, when the hood 1 is closed, the hinge point M between the first link 5 and the connecting seat 3 is higher than the hinge point N between the second link 6 and the connecting seat 3. This makes the length of the first link 5 greater than that of the second link 6, so that the hood 1 can be guided to move within a wider range through the first link 5 at different opening angles, thus improving the opening effect of the hood 1.

[0058] With the hood 1 closed, the hinge point M between the first link 5 and the connecting seat 3 is higher than the hinge point N between the second link 6 and the connecting seat 3. This height difference helps determine the accurate posture of the hood 1 when closed. The higher hinge point M allows the first link 5 to provide support to the hood 1 at a specific angle and position in the vertical direction, cooperating with the second link 6 at the lower hinge point N to provide support force to the hood 1 from different height positions. In specific implementation, the distance L2 between the hinge points M and N in the overall vehicle height direction is 4mm-6mm, for example, the distance L2 is 4mm, 4.9mm, 5mm, or 6mm, etc.

[0059] An exemplary structure of the first link 5 in this embodiment is as follows: Figure 5 As shown, the first connecting rod 5 has a front portion 501 at the front and a rear portion 502 at the rear. The width of the front portion 501 is greater than the width of the rear portion 502. First reinforcing flanges 503 are provided on the edges of the front portion 501 to enhance the strength of the first connecting rod 5. The rear portion 502 has a first segment 5021 and a second segment 5022 connected sequentially from front to back. The front end of the first segment 5021 is connected to the front portion 501, and the rear end of the rear portion 502 is hinged to the connecting seat 3. Preferably, the connection between the first segment 5021 and the second segment 5022 is bent, so that the two segments are staggered in the thickness direction of the first connecting rod 5, meaning that the first segment 5021 and the second segment 5022 are not coplanar.

[0060] An exemplary structure of the second link 6 in this embodiment is as follows: Figure 6 As shown, the second link 6 has a first part 601 and a second part 602 connected sequentially from front to back, and the connection between the two is also bent, so that the first part 601 and the second part 602 are not coplanar. The front end of the first part 601 is hinged to the fixed seat 4, and the rear end of the second part 602 is hinged to the connecting seat 3. The first link 5 and the second link 6 in this embodiment have a simple structure, are easy to arrange and implement, and perform well as a four-bar linkage.

[0061] In some implementations, such as Figure 2 and Figure 3As shown, when the hood 1 is closed, the hinge point O between the first link 5 and the fixed seat 4 is higher than the hinge point Q between the second link 6 and the fixed seat 4. This design, with hinge point O higher than hinge point Q, helps ensure that the hood 1 maintains a suitable clearance with surrounding components when closed, preventing interference. In specific implementations, the distance L3 between hinge point O and hinge point Q in the vertical direction of the vehicle is between 9mm and 11mm, for example, L3 can be 9mm, 10mm, 10.5mm, or 11mm, etc.

[0062] In addition, the higher hinge point O allows the first link 5 to exert a specific angle and direction on the hood 1 from the fixed seat 4 side, which, together with the support force provided by the second link 6 at the lower hinge point Q, forms a more reasonable, multi-angle support system. This allows the hood 1 to be in a precise and stable closed state, effectively preventing the hood 1 from shifting up and down or swaying left and right, thus ensuring that the fit between the hood 1 and the body reaches an ideal state.

[0063] As a possible implementation method, such as Figure 4 As shown, the mounting base 4 is located on the side of the first link 5 and the second link 6 away from the fender 2. The mounting base 4 is preferably a plate extending in the vertical direction of the vehicle, and its simple structure facilitates its implementation. In this embodiment, the mounting base 4 is approximately triangular, thus utilizing the high stability of a triangle to reduce its weight while meeting usage requirements, thereby facilitating a lightweight design for the hood hinge structure.

[0064] The term "roughly triangular" for fixing base 4 refers to the fact that while all three sides of fixing base 4 are non-linear, the overall structure of the three non-linear sides forms a triangle. For example... Figure 3 and Figure 7 As shown, the mounting base 4 has a first corner portion 401 located at the top and facing the front of the vehicle, a second corner portion 402 located at the top and facing the rear of the vehicle, and a third corner portion 403 located at the bottom of the mounting base 4. In the longitudinal direction of the vehicle, the third corner portion 403 is located between the first corner portion 401 and the second corner portion 402. Hinge point O can be located at the first corner portion 401, and hinge point Q can be located between the first corner portion 401 and the second corner portion 402. To improve the structural strength of the mounting base 4, a second reinforcing flange 404 is provided on a portion of the edge of the mounting base 4. This flange has a simple structure and is easy to implement.

[0065] In this embodiment, the mounting base 4 is provided with a mounting part, which is used to mount the mounting base 4 on the vehicle body and can adjust the vertical position of the mounting base 4 on the vehicle body. Here, the mounting part can adjust the position of the mounting base 4 on the vehicle body, which helps to improve the flexibility of the mounting base 4 in the vehicle body, thereby meeting the arrangement requirements of the hood hinge structure.

[0066] In a preferred embodiment, the mounting part includes a mounting hole 400 provided on the fixed base 4. The mounting hole 400 is a rectangular hole extending along the vertical direction of the vehicle. Here, the rectangular mounting hole 400 provides operating space for adjusting the vertical position of the fixed base 4 on the vehicle body, and the rectangular hole has a simple structure, which is convenient for layout and implementation.

[0067] In specific implementation, such as Figure 7 As shown, the mounting holes 400 are arranged in a triangular pattern on the mounting base 4. This utilizes the high stability of a triangle to improve the connection stability between the mounting base 4 and the vehicle body. For example, one mounting hole 400 is located at the first corner 401, one at the third corner 403, and one in the middle of the mounting base 4, below the first connecting rod 5 in the closed state. This helps prevent interference between the connection between the mounting base 4 and the vehicle body and the first connecting rod 5 and the second connecting rod 6.

[0068] To further enhance the connection strength at the joint, the mounting base 4 is provided with protrusions 405 corresponding one-to-one with the mounting holes 400, and the mounting holes 400 are located on the protrusions 405. During installation, the mounting base 4 is installed on the vehicle body by bolts and nuts passing through the mounting holes 400 and the vehicle body. When it is necessary to adjust the position of the mounting base 4 in the vertical direction of the vehicle, the position of the bolts in the mounting holes is changed.

[0069] An exemplary structure of the connector 3 in this embodiment is as follows: Figure 3 and Figure 8 As shown in the diagram, the connecting seat 3 includes a top plate 301 and a vertical plate 302 disposed on the side of the top plate 301 near the outside of the vehicle. The vertical plate 302 extends downward along the vertical direction of the entire vehicle. The first connecting rod 5 and the second connecting rod 6 are both hinged to the vertical plate 302. The top plate 301 is used to connect with the hood 1. Here, the top plate 301 in the connecting seat 3 facilitates the connection between the connecting seat 3 and the hood 1, the vertical plate 302 facilitates the installation of the first connecting rod 5 and the second connecting rod 6, and the connecting seat 3 has a simple structure and is easy to process and form.

[0070] In terms of specific structure, in this embodiment, the vertical plate 302 and the top plate 301 are connected, so that the connecting seat 3 supports an inverted "L" shape. To facilitate the hinge connection between the vertical plate 302 and the first connecting rod 5 and the second connecting rod 6, an extension portion 3021 is provided at the rear end of the vertical plate 302, which is inclined downward in the direction pointing to the rear of the vehicle. The rear end of the top plate 301 is shaped to conform to the extension portion 3021. All hinge points N are located at the rear end of the extension portion 3021, and hinge points M are located on the vertical plate 302 relative to the front end of the extension portion 3021.

[0071] To facilitate the installation of the connecting seat 3 on the hood 1, the top plate 301 is provided with a connecting hole 300. The connecting hole 300 is used to connect the connecting seat 3 to the hood 1, and the connecting hole 300 is a rectangular hole extending along the left-right direction of the vehicle. Here, the connecting hole 300 is a rectangular hole extending along the left-right direction of the vehicle, which facilitates the adjustment of the position of the connecting seat 3 and the hood 1 in the left-right direction of the vehicle, thereby further satisfying the flexibility of the arrangement of the connecting seat 3.

[0072] In practical implementation, the connection hole 300 can be... Figure 8 The diagram shows two connectors spaced apart along the front-rear direction of the vehicle. Connectors, such as bolts, pass through the connecting holes 300 and the hood 1 along the vertical direction of the vehicle and are then connected to the bolts, thereby fixing the connecting seat 3 to the hood 1. When it is necessary to adjust the position of the connecting seat 3 on the hood 1, only the position of the bolts in the connecting holes 300 needs to be changed. Of course, the number of connecting holes 300 in this embodiment can be adjusted adaptively according to usage requirements.

[0073] To enhance the structural strength of the connecting seat 3, a downward-folding third reinforcing flange can be provided on the side of the top plate 301 opposite to the vertical plate 302. Additionally, to improve the connection strength of the connecting seat 3 to the cover 1, such as... Figure 1 and Figure 2 As shown, a reinforcing plate 101 extending along the front-rear direction of the vehicle is provided in the space formed by the inner and outer panels of the hood 1. The length of the reinforcing plate 101 is greater than that of the connecting seat 3, and it is disposed on the upper and lower sides of the inner panel opposite to the top plate 301. The aforementioned bolts pass through the reinforcing plate 101, the inner panel, and the top plate 301 and are connected to the nuts, thus connecting the three together, thereby improving the connection strength and reliability between the connecting seat 3 and the hood 1.

[0074] To verify the technical effectiveness of the hood hinge structure, the preset distance between the intersection point K of the extension lines of the first link 5 and the second link 6 in the hood hinge structure described in this embodiment and the rear tip P of the hood was selected as 0, the included angle α was selected as 8°, the distance L1 was selected as 70mm, the spacing L2 was selected as 4.9mm, and the spacing L3 was selected as 10mm, and then compared with the hood hinge structure before the improvement.

[0075] In this embodiment, the movement trajectory of the rear apex P of the hood before and after improvement is as follows: Figure 9 As shown in the figure. The trajectory of the improved front hood rear tip P is shown as the dotted line, while the trajectory of the improved rear hood rear tip P is shown as the dashed line. Clearly, the trajectory of the improved front hood rear tip P involves a rotation, while the trajectory of the improved rear hood rear tip P does not and consistently moves away from the rear of the seam between the hood 1 and the fender 2. Therefore, the trajectory of the improved rear hood rear tip P is more reasonable.

[0076] In this embodiment, the movement trajectory of the rear sharp corner S of the lower edge of the cover 1 before and after improvement is as follows: Figure 10 As shown in the figure. The trajectory of the rear sharp corner S of the lower edge of the improved front hood 1 is shown by the dotted line, while the trajectory of the rear sharp corner S of the lower edge of the improved rear hood 1 is shown by the dashed line. Clearly, the trajectory of the rear sharp corner S of the improved front hood 1 dips towards the front, while the trajectory of the rear sharp corner S of the improved rear hood 1 does not dip and consistently moves away from the rear of the seam between the hood 1 and the fender 2. Therefore, the trajectory of the rear sharp corner S of the improved rear hood 1 is more reasonable and does not collide with the fender 2.

[0077] The hood hinge structure described in this embodiment optimizes the positions of the first link 5, the second link 6, and the rear tip P of the hood in the four-bar linkage mechanism. This ensures that when the hood 1 is opened, the movement trajectories of the rear tip P of the hood and the rear tip S of the lower edge of the hood 1 are set away from the rear part of the seam between the hood 1 and the fender 2. This prevents the rear tip S of the lower edge of the hood 1 from hitting the fender 2 during the opening of the hood 1, thus preventing paint chipping on the fender 2 and improving the vehicle's refined appearance.

[0078] Example 2

[0079] Another object of the present invention is to provide a vehicle having the hood hinge structure described above.

[0080] The vehicle described in this invention, by setting the hood hinge structure as described above, helps to prevent damage to the fender 2 during the opening of the hood 1, thereby helping to ensure the refinement of the vehicle.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hood hinge structure, characterized in that: It includes a connecting seat (3) for connecting to the hood (1), a fixing seat (4) for mounting on the vehicle body, and a first link (5) and a second link (6). The first link (5) and the second link (6) are both hinged between the connecting seat (3) and the fixing seat (4), and together with the connecting seat (3) and the fixing seat (4), they form a four-bar linkage. When the hood (1) is closed, from the left-right direction of the whole vehicle, there is a preset distance between the intersection point K of the extension lines of the first link (5) and the second link (6) and the rear tip P of the hood, and the preset distance is not greater than 10mm.

2. The hood hinge structure according to claim 1, characterized in that: When the cover (1) is closed, the included angle α between the first link (5) and the second link (6) is between 8° and 11°.

3. The hood hinge structure according to claim 1, characterized in that: When the hood (1) is closed, the distance L1 between the hinge point N of the second link (6) and the connecting seat (3) and the rear sharp corner S of the lower edge of the hood (1) in the front-rear direction of the vehicle is not greater than 70mm.

4. The hood hinge structure according to claim 1, characterized in that: The length of the first link (5) is greater than that of the second link (6); When the cover (1) is closed, the hinge point M between the first connecting rod (5) and the connecting seat (3) is higher than the hinge point N between the second connecting rod (6) and the connecting seat (3).

5. The hood hinge structure according to claim 1, characterized in that: The length of the first link (5) is greater than that of the second link (6); When the cover (1) is closed, the hinge point O between the first connecting rod (5) and the fixed seat (4) is higher than the hinge point Q between the second connecting rod (6) and the fixed seat (4).

6. The hood hinge structure according to any one of claims 1 to 5, characterized in that: The mounting base (4) is provided with an installation part, which is used to install the mounting base (4) on the vehicle body and can adjust the vertical position of the mounting base (4) on the vehicle body.

7. The hood hinge structure according to claim 6, characterized in that: The mounting part includes a mounting hole (400) provided on the fixed base (4), and the mounting hole (400) is a rectangular hole extending along the vertical direction of the vehicle.

8. The hood hinge structure according to claim 6, characterized in that: The connecting seat (3) includes a top plate (301) and a vertical plate (302) disposed on the side of the top plate (301) near the outside of the vehicle; The vertical plate (302) extends downward along the vertical direction of the whole vehicle. The first connecting rod (5) and the second connecting rod (6) are both hinged to the vertical plate (302). The top plate (301) is used to connect with the engine cover (1).

9. The hood hinge structure according to claim 8, characterized in that: The top plate (301) is provided with a connecting hole (300), which is used to connect the connecting seat (3) to the engine cover (1), and the connecting hole (300) is a rectangular hole extending along the left and right direction of the whole vehicle.

10. A vehicle, characterized in that: The vehicle is provided with a hood hinge structure as described in any one of claims 1 to 9.

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