Front hatch cover hinge assembly and vehicle

Abstract

The invention discloses a front hatch cover hinge assembly which comprises a hinge fixed hinge, a rear connecting rod, a front connecting rod, a hinge movable hinge and a limiting block arranged on the hinge fixed hinge, and the limiting block is arranged to be used for making contact with the rear connecting rod so as to limit the downward movement range of the rear connecting rod when a front hatch cover is closed. According to the front hatch cover hinge assembly, the limiting blocks control the closing lower limit positions of the hinges by abutting against the hinge connecting rods, the vertical stability of a front hatch cover can be better guaranteed through the arrangement mode of the limiting blocks, and the modality of the whole front hatch cover can be improved. The invention further discloses a vehicle.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology. Specifically, this invention relates to a front hood hinge assembly and a vehicle. Background Technology

[0002] The hood hinge is a key component connecting the vehicle body and the hood, and it is also the main load-bearing component of the hood. It plays a major supporting role for the hood and provides the axis of rotation for the hood to rotate around the hinge axis to achieve the opening and closing functions. Therefore, the structure and arrangement of the hinge directly affect the comfort, stability, and usability of opening and closing the hood.

[0003] Hood hinges can be classified into two types based on their structure: hinged hinges and four-bar hinges. Hood hinges have a fixed rotation axis, meaning the axis doesn't move forward or backward during opening, resulting in a large downward drop at the rear of the hood and potential interference between the hood and the vehicle body. Four-bar hinges, on the other hand, have a variable rotation axis, moving forward or backward during opening, minimizing the downward drop and reducing interference. Furthermore, four-bar hinges ensure stability when the hood is open at different angles and prevent abnormal movement during high-speed driving.

[0004] Due to the many advantages of four-bar hinges, more and more car models are starting to use four-bar hinges as the connection components between the body and the hood.

[0005] Chinese patent application number 202122161790.X discloses a four-bar hinge structure for an automobile hood, in which a limiting block is positioned between the fixed and movable flaps. When the hood is closed, applying an upward lifting force to the rear corner of the hood by hand results in a noticeable upward lift at the rear corner. This is due to insufficient limiting effect of the hinge, ultimately leading to vertical vibration of the hood when the vehicle is traveling at high speeds.

[0006] The aim is to provide an improved front hood hinge assembly, particularly regarding how to improve the stability of the front hood. Summary of the Invention

[0007] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention provides a front hatch hinge assembly, the purpose of which is to improve the stability of the front hatch.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a front hatch hinge assembly, including a hinge fixed page, a rear link, a front link, a hinge movable page, and a limiting block disposed on the hinge fixed page. The limiting block is configured to contact the rear link to limit the range of downward movement of the rear link when the front hatch is closed.

[0009] The two ends of the front link are rotatably connected to the hinge fixed page and the hinge movable page, respectively, and the two ends of the rear link are rotatably connected to the hinge fixed page and the hinge movable page, respectively. The rear link and the front link are not arranged in parallel.

[0010] The lower edge of the hinge fixing page is provided with a first flange, and the rear edge of the hinge fixing page is provided with a limiting block mounting surface. The limiting block mounting surface and the first flange are on the same transition surface, and the limiting block is mounted on the limiting block mounting surface.

[0011] The upper edge of the rear link is provided with a second flange, which extends along the entire length of the rear link.

[0012] The rear connecting rod is provided with a first reinforcing rib, which extends along the length of the rear connecting rod.

[0013] The rear connecting rod is provided with a limiting block mating surface for contacting the limiting block, and the first reinforcing rib is located between the second flange and the limiting block mating surface.

[0014] The mounting surface of the limiting block is inclined, and the distance between the upper end of the mounting surface of the limiting block and the windshield is less than the distance between the lower end of the mounting surface of the limiting block and the windshield. The limiting block is located between the upper and lower ends of the mounting surface of the limiting block. When the hood is closed, the mating surface of the limiting block is inclined, and the distance between the upper end of the mating surface of the limiting block and the windshield is less than the distance between the lower end of the mating surface of the limiting block and the windshield.

[0015] The upper edge of the front link is provided with a third flange, which extends along the entire length of the front link.

[0016] The front connecting rod is provided with a second reinforcing rib, which extends along the length of the front connecting rod.

[0017] The hinge active page includes a lower connecting part and an upper connecting part connected to the lower connecting part. Two upper connecting parts are provided. The lower connecting part is rotatably connected to the front link and the rear link. The two upper connecting parts are connected to the front hatch. A ball pin is provided on the lower connecting part.

[0018] The hinge movable page also includes a reinforcing platform connected to the lower connecting part of the movable page. The reinforcing platform is located between and connected to the upper connecting parts of the two movable pages, and a gap is formed between the reinforcing platform and the front hatch.

[0019] The reinforcing platform is provided with weight reduction holes.

[0020] The hinge flap also includes a fourth flange, which is connected to the upper connecting part of the flap. The rear connecting rod and the fourth flange are connected to the same end of the lower connecting part of the flap. The fourth flange and the upper connecting part of the flap extend to the same side of the lower connecting part of the flap. The flange corner at the end of the fourth flange is configured to contact the rear connecting rod and to play a limiting role when the front hatch is opened.

[0021] The present invention also provides a vehicle including the aforementioned hood hinge assembly.

[0022] In the front hatch hinge assembly of the present invention, the limiting block controls the lower closing position of the hinge by abutting against the hinge link. This arrangement of the limiting block can better ensure the vertical stability of the front hatch and improve the modal stability of the entire front hatch. Attached Figure Description

[0023] Figure 1 This is an assembly drawing of the front hatch hinge assembly and the front hatch of the present invention;

[0024] Figure 2 It is an oblique axonometric drawing of a four-bar linkage;

[0025] Figure 3 It is an oblique axonometric drawing of the hinge-fixed page;

[0026] Figure 4 It is an isometric view of the rear connecting rod of the hinge;

[0027] Figure 5 It is an oblique axonometric drawing of the front connecting rod of the hinge;

[0028] Figure 6 It is an oblique axonometric drawing of the hinge movement page;

[0029] The markings in the above figures are as follows: 1. Hinge fixing plate; 2. Rear link; 3. Front link; 4. Hinge moving plate; 5. Limiting block; 6. Support rod ball pin; 1-1. Fixing plate mounting hole; 1-2. Fixing plate side rear link front mounting hole; 1-3. Fixing plate side front link front mounting hole; 1-4. First flange; 1-5. Limiting block mounting surface; 1-6. Limiting block mounting hole; 2-1. Rear link front mounting hole; 2-2. Rear link rear mounting hole; 2-3. Second flange; 2-4. First reinforcing rib. ; 2-5, Limiting block mating surface; 3-1, Front mounting hole of front connecting rod; 3-2, Rear mounting hole of front connecting rod; 3-3, Third flange; 3-4, Second reinforcing rib; 4-1, Mounting hole of movable leaf; 4-2, Reinforcing platform; 4-3, Weight reduction hole; 4-4, Rear mounting hole of front connecting rod on the side of movable leaf; 4-5, Rear mounting hole of rear connecting rod on the side of movable leaf; 4-6, Fourth flange; 4-7, Flanged corner; 4-8, Ball pin mounting hole; 4-9, Upper connecting part of movable leaf; 4-10, Lower connecting part of movable leaf. Detailed Implementation

[0030] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," and similar expressions used in this document are for illustrative purposes only.

[0032] It should be noted that in the following embodiments, the terms "first", "second", "third" and "fourth" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution, but are merely for the convenience of description.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figures 1 to 6As shown, the present invention provides a front hatch hinge assembly, including a hinge fixed page 1, a rear link 2, a front link 3, a hinge movable page 4, and a limiting block 5 disposed on the hinge fixed page 1. The limiting block 5 is configured to contact the rear link 2 to limit the range of downward movement of the rear link 2 when the front hatch is closed.

[0035] The two ends of the front link 3 are rotatably connected to the hinge fixed page 1 and the hinge movable page 4, respectively. The two ends of the rear link 2 are rotatably connected to the hinge fixed page 1 and the hinge movable page 4, respectively. The rear link 2 and the front link 3 are arranged in a non-parallel manner.

[0036] The lower edge of the hinge fixing page 1 is provided with a first flange 1-4, and the rear edge of the hinge fixing page 1 is provided with a limiting block mounting surface 1-5. The limiting block mounting surface 1-5 and the first flange 1-4 are on the same transition surface, and the limiting block 5 is mounted on the limiting block mounting surface 1-5.

[0037] The upper edge of the rear link 2 is provided with a second flange 2-3, which extends along the entire length of the rear link 2.

[0038] The rear connecting rod 2 is provided with a first reinforcing rib 2-4, which extends along the length of the rear connecting rod 2.

[0039] The rear connecting rod 2 is provided with a limiting block mating surface 2-5 for contacting the limiting block 5, and the first reinforcing rib 2-4 is located between the second flange 2-3 and the limiting block mating surface 2-5.

[0040] The mounting surfaces 1-5 of the limiting block are inclined, and the distance between the upper end of the mounting surface 1-5 and the windshield is less than the distance between the lower end of the mounting surface 1-5 and the windshield. The limiting block 5 is located between the upper and lower ends of the mounting surface 1-5. When the hood is closed, the mating surface 2-5 of the limiting block is inclined, and the distance between the upper end of the mating surface 2-5 and the windshield is less than the distance between the lower end of the mating surface 2-5 and the windshield.

[0041] The upper edge of the front link 3 is provided with a third flange 3-3, which extends along the entire length of the front link 3.

[0042] The front connecting rod 3 is provided with a second reinforcing rib 3-4, which extends along the length of the front connecting rod 3.

[0043] The hinge movable page 4 includes a lower movable page connecting part 4-10 and an upper movable page connecting part 4-9 connected to the lower movable page connecting part 4-10. Two upper movable page connecting parts 4-9 are provided. The lower movable page connecting part 4-10 is rotatably connected to the front connecting rod 3 and the rear connecting rod 2. The two upper movable page connecting parts 4-9 are connected to the front hatch. A ball pin 6 is provided on the lower movable page connecting part 4-10.

[0044] The hinge movable page 4 also includes a reinforcing platform connected to the lower connecting part 4-10 of the movable page. The reinforcing platform is located between the upper connecting parts 4-9 of the two movable pages and is connected to the upper connecting parts 4-9 of the two movable pages. A gap is formed between the reinforcing platform and the front hatch.

[0045] The reinforcing platform 4-2 is provided with weight reduction holes 4-3.

[0046] The hinge movable page 4 also includes a fourth flange 4-6, which is connected to the upper connecting part 4-9 of the movable page. The rear connecting rod 2 and the fourth flange 4-6 are connected to the same end of the lower connecting part 4-10 of the movable page. The fourth flange 4-6 and the upper connecting part 4-9 of the movable page extend toward the same side of the lower connecting part 4-10 of the movable page. The flange corner 4-7 at the end of the fourth flange 4-6 is configured to contact the rear connecting rod 2 and to play a limiting role when the front hatch is opened.

[0047] The present invention also provides a vehicle including the aforementioned hood hinge assembly.

[0048] Example

[0049] Firstly, such as Figures 1 to 6 As shown, this embodiment of the invention provides a hood hinge assembly, including a hinge fixed leaf 1, a rear link 2, a front link 3, a hinge movable leaf 4, and a limiting block 5 disposed on the hinge fixed leaf 1. The limiting block 5 is configured to contact the rear link 2 to limit the downward movement range of the rear link 2 when the hood is closed. The hinge fixed leaf 1 is connected to the vehicle body, and the hinge movable leaf 4 is connected to the hood, which is used to close the front compartment of the vehicle. Both ends of the front link 3 are rotatably connected to the hinge fixed leaf 1 and the hinge movable leaf 4, respectively, and both ends of the rear link 2 are rotatably connected to the hinge fixed leaf 1 and the hinge movable leaf 4, respectively. The rear link 2 and the front link 3 are not arranged parallel to each other.

[0050] Specifically, the hood hinge assembly in this embodiment of the invention is a four-bar hinge design. Compared with the prior art, the limiting block 5 is positioned between the rear link 2 and the fixed plate. The mounting surfaces 1-5 of the limiting block on the fixed plate and the mating surfaces 2-5 of the limiting block on the rear link 2 are both inclined upwards. This is a very important and effective modification, as this inclined angle setting provides limiting for both the front-to-back and vertical directions of the hood. The adjustment of the position of the limiting block 5 in the four-bar hinge of this embodiment is a highly effective improvement. Real-vehicle verification shows that the arrangement of the limiting block 5 in the four-bar hinge of this embodiment is more reasonable and effective. When an upward lifting force is applied to the rear corner of the hood by hand, the rear corner of the hood lifts almost nothing, ensuring the stability of the entire hood. The improved four-bar hinge has a simple and reasonable structure, is lightweight, and has excellent mechanical properties, greatly solving the stability problem of the hood.

[0051] In embodiments of the present invention, such as Figure 2 and Figure 3 As shown, a first flange 1-4 is provided at the lower edge of the hinge fixing page 1, and a limiting block mounting surface 1-5 is provided at the rear edge of the hinge fixing page 1. The limiting block mounting surface 1-5 and the first flange 1-4 are on the same transition surface, and the limiting block 5 is installed on the limiting block mounting surface 1-5. The first flange 1-4 extends towards one side of the hinge fixing page 1 and is fixedly connected to the hinge fixing page 1. The first flange 1-4 can improve the bending resistance of the fixing page and improve the lateral and vertical stability of the hood system. The first flange 1-4 is parallel to the Y direction, which is parallel to the width direction of the vehicle body, the X direction is parallel to the length direction of the vehicle body, and the Z direction is perpendicular to the X and Y directions.

[0052] In embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the hinge fixing page 1 is connected to the vehicle body by two bolts. The hinge fixing page 1 is provided with fixing page mounting holes 1-1 through which the two bolts pass. The axis of the fixing page mounting holes 1-1 is parallel to the Y direction. The two fixing page mounting holes 1-1 are located at both ends of the length direction of the hinge fixing page 1. This connection method fixes the hinge fixing page 1 to the side surface of the vehicle body, resulting in better stability. The rear edge of the hinge fixing page 1 (the rear edge of the hinge fixing page 1 refers to the end of the hinge fixing page 1 closest to the windshield along its length, and the other end of the hinge fixing page 1 away from the windshield along its length, the length direction of the hinge fixing page 1 being parallel to or forming an angle with the X direction, and the length direction of the hinge fixing page 1 being perpendicular to the Y direction) is provided with a limiting block mounting surface 1-5 on the same transition surface as the first flange 1-4. The end of the limiting block mounting surface 1-5 is connected to the end of the first flange 1-4. The limiting block mounting surface 1-5 is parallel to the Y direction. The limiting block mounting surface 1-5 can be used to install the limiting block 5 and can also serve as a reinforcement for the flange.

[0053] like Figure 2 and Figure 3 As shown, the front link 3 and the rear link 2 are rotatably connected to the hinge fixing page 1 via two rotating shafts. The hinge fixing page 1 is provided with a fixing page side rear link front mounting hole 1-2 and a fixing page side front link front mounting hole 1-3, which allow the two rotating shafts to be inserted respectively. The fixing page side rear link front mounting hole 1-2 and the fixing page side front link front mounting hole 1-3 are located between two fixing page mounting holes 1-1. The fixing page side rear link front mounting hole 1-2 is located between the fixing page side front link front mounting hole 1-3 and one of the fixing page mounting holes 1-1. The axes of the fixing page mounting holes 1-1, the fixing page side rear link front mounting hole 1-2, and the fixing page side front link front mounting hole 1-3 are parallel to the Y direction.

[0054] In embodiments of the present invention, such as Figure 2 and Figure 4 As shown, the upper edge of the rear link 2 is provided with a second flange 2-3, which extends along the entire length of the rear link 2. The second flange 2-3 extends towards one side of the rear link 2 and is fixedly connected to the rear link 2. A first reinforcing rib 2-4 is provided on the rear link 2, which extends along the length of the rear link 2. The second flange 2-3 and the first reinforcing rib 2-4 greatly improve the bending and torsional resistance of the rear link 2, ensuring the lateral stability of the front hatch system.

[0055] In embodiments of the present invention, such as Figure 2 and Figure 4 As shown, the rear connecting rod 2 is provided with a limiting block mating surface 2-5 for contacting the limiting block 5. The first reinforcing rib 2-4 is located between the second flange 2-3 and the limiting block mating surface 2-5. The limiting block mating surface 2-5 is parallel to the Y direction and is located above the limiting block mounting surface 1-5.

[0056] like Figures 2 to 4As shown, the mounting surface 1-5 of the limiting block is inclined. The distance between the upper end of the mounting surface 1-5 of the limiting block and the windshield of the vehicle (the windshield is located behind the hood) is less than the distance between the lower end of the mounting surface 1-5 of the limiting block and the windshield. The limiting block 5 is located between the upper and lower ends of the mounting surface 1-5 of the limiting block. The upper and lower ends of the mounting surface 1-5 of the limiting block are opposite ends in the length direction of the mounting surface 1-5 of the limiting block. The height of the upper end is greater than the height of the lower end. The mounting surface 1-5 of the limiting block has an angle with the Z direction and the angle is acute. When the hood is closed, the limiting block mating surface 2-5 is inclined. The upper end of the limiting block 5 is in contact with the limiting block mating surface 2-5. The distance between the upper end of the limiting block mating surface 2-5 and the windshield is less than the distance between the lower end of the limiting block mating surface 2-5 and the windshield. The upper and lower ends of the limiting block mating surface 2-5 are opposite ends in the length direction of the limiting block mating surface 2-5. The height of the upper end is greater than the height of the lower end. The limiting block mating surface 2-5 has an angle with the Z direction, and this angle is acute.

[0057] The mounting surfaces 1-5 of the limiting block are provided with limiting block mounting holes for mounting the limiting block 5. The function of the limiting block 5 is to limit the downward movement range of the front and rear connecting rods 2 of the hinge, ensuring that the fit between the hood and surrounding body parts meets the clearance requirements when the hood is closed. The mounting position of the limiting block 5 on the hinge fixing page 1 was determined after multiple verifications on actual vehicles. Tests show that placing the limiting block 5 near the rear of the hinge fixing page 1 helps improve the vertical stability of the hood system, which is crucial during use. Simultaneously, the rear connecting rod 2 has a limiting block mating surface 2-5, corresponding to the position of the limiting block mounting surface 1-5 on the hinge fixing page 1. The upper surface of the limiting block 5 abuts against the limiting block mating surface 2-5 of the rear connecting rod 2, thereby limiting the lower limit position of the hinge closure. This ensures the matching of the entire hood with surrounding body parts and also plays a significant role in improving the modal performance of the entire hood. Meanwhile, both the mounting surfaces 1-5 and the mating surfaces 2-5 of the limiting block are inclined upwards. This is a very important and effective modification. This inclined angle setting can limit the forward and backward movement of the hood as well as its vertical movement. In the prior art, the four-bar hinge places the limiting block between the fixed and movable pages. When the hood is closed, applying an upward lifting force to the rear corner of the hood results in a significant upward lift of the rear corner. This is due to insufficient limiting effect of the hinge, which ultimately leads to the hood easily vibrating vertically (Z-axis) when the vehicle is traveling at high speeds. The adjustment of the position of the limiting block 5 by the four-bar hinge in this embodiment of the invention is very effective. Real vehicle verification shows that the arrangement of the limiting block 5 in this embodiment of the invention is more reasonable and effective. When an upward lifting force is applied to the rear corner of the hood, the rear corner of the hood lifts almost without any upward movement, ensuring the stability of the entire hood.

[0058] In embodiments of the present invention, such as Figure 2 and Figure 5 As shown, the upper edge of the front connecting rod 3 is provided with a third flange 3-3, which extends along the entire length of the front connecting rod 3. The third flange 3-3 extends towards one side of the front connecting rod 3 and is fixedly connected to the front connecting rod 3. A second reinforcing rib 3-4 is provided on the front connecting rod 3, which extends along the length of the front connecting rod 3. The third flange 3-3 and the second reinforcing rib 3-4 greatly improve the bending and torsional resistance of the front connecting rod 3, ensuring the lateral stability of the front hatch system.

[0059] like Figure 2 and Figure 6 As shown, the front link 3 and the rear link 2 are rotatably connected to the hinge 4 via two pivots. The hinge 4 has a front link rear mounting hole 4-4 and a rear link rear mounting hole 4-5 on the hinge side, allowing the two pivots to be inserted into them respectively. The front link rear mounting hole 4-4 is located between the rear link rear mounting hole 4-5 and the ball pin mounting hole 4-8. The axes of the front link rear mounting hole 4-4, the rear link rear mounting hole 4-5, and the ball pin mounting hole 4-8 are parallel to the Y-direction. The upper surface of the hinge 4 is fixedly connected to the front hatch with two bolts. The upper surface of the hinge 4 has bolt holes 4-1 through which the two bolts pass.

[0060] like Figure 2 and Figure 6 As shown, the hinge movable leaf 4 includes a lower movable leaf connecting part 4-10 and an upper movable leaf connecting part 4-9 fixedly connected to the lower movable leaf connecting part 4-10. Two upper movable leaf connecting parts 4-9 are provided. The lower movable leaf connecting part 4-10 is rotatably connected to the front connecting rod 3 and the rear connecting rod 2. The two upper movable leaf connecting parts 4-9 are connected to the front hatch. A ball pin 6 is installed on the lower movable leaf connecting part 4-10, and the ball pin 6 is installed in a ball pin mounting hole 4-8. The ball pin 6 is used to connect with a strut, which provides support for the front hatch after it is opened, keeping the front hatch in the open position. The front connecting rod rear mounting hole 4-4, the rear connecting rod rear mounting hole 4-5, and the ball pin mounting hole 4-8 on the movable leaf side are through holes provided on the lower movable leaf connecting part 4-10. The length direction of the lower movable leaf connecting part 4-10 is perpendicular to the Y-direction. The upper connecting part 4-9 of the active page is perpendicular to the lower connecting part 4-10 of the active page, and bolt holes 4-1 are provided on the upper connecting parts 4-9 of the two active pages.

[0061] like Figure 2 and Figure 6As shown, the hinge movable page 4 also includes a reinforcing platform 4-2 fixedly connected to the lower connecting part 4-10 of the movable page. The reinforcing platform 4-2 is located between the upper connecting parts 4-9 of the two movable pages, and both ends of the reinforcing platform 4-2 are fixedly connected to the upper connecting parts 4-9 of the two movable pages respectively. A gap is formed between the reinforcing platform 4-2 and the front hatch. The upper connecting parts 4-9 of the two movable pages are in contact with the surface of the front hatch, and the reinforcing platform 4-2 does not contact the front hatch. By providing the reinforcing platform 4-2 at the middle position of the upper surface of the hinge movable page 4, the reinforcing platform 4-2 can improve the bending resistance between the two bolt holes 4-1.

[0062] like Figure 2 and Figure 6 As shown, a weight-reducing hole 4-3 is provided on the reinforcing platform 4-2. The weight-reducing hole 4-3 is a through hole that runs through the reinforcing platform 4-2. Under the premise of ensuring the bending resistance of the reinforcing platform 4-2, the setting of the weight-reducing hole 4-3 can improve the lightweight level of the hinge system.

[0063] like Figure 2 and Figure 6 As shown, the hinge flap 4 also includes a fourth flange 4-6, which is fixedly connected to an upper connecting part 4-9 of the flap. This upper connecting part 4-9 is located between the reinforcing platform 4-2 and the fourth flange 4-6. The rear connecting rod 2 and the fourth flange 4-6 are connected to the same end of the lower connecting part 4-10 of the flap. The fourth flange 4-6 and the upper connecting part 4-9 extend towards the same side of the lower connecting part 4-10. The flange corner 4-7 at the end of the fourth flange 4-6 is configured to contact the rear connecting rod 2, serving as a limiting element when the front hatch is opened. The flange corner 4-7 is located at one end of the fourth flange 4-6, and the other end of the fourth flange 4-6 is fixedly connected to the upper connecting part 4-9 of the flap.

[0064] The lower connecting part 4-10 of the hinge movable page 4 is perpendicular to the upper connecting part 4-9 of the movable page. The front end of the lower connecting part 4-10 of the movable page is provided with a ball pin mounting hole 4-8. In the prior art, many models install the strut ball pin on the hood. In this embodiment of the invention, the ball pin 6 is installed on the hinge movable page 4, which improves the integration of the hinge. At the same time, since the thickness of the lower connecting part 4-10 and the upper connecting part 4-9 of the movable page (the thickness of the lower connecting part 4-10 and the upper connecting part 4-9 of the movable page is the same) is much greater than the thickness of the sheet metal parts used to make the hood, integrating the ball pin 6 into the hinge movable page 4 can greatly improve the rigidity and strength of the ball pin mounting hole 4-8, reduce the deformation error of the strut during use, and ensure the stability and usability of the hood.

[0065] The upper surface of the hinge movable leaf 4 smoothly transitions to the area of ​​the rear mounting hole 4-5 of the rear connecting rod on the movable leaf side to form the fourth flange 4-6. The fourth flange 4-6 has an arc-shaped structure, and its axis is parallel to the Y direction. The fourth flange 4-6 can increase the bending and torsional resistance of the area of ​​the rear mounting hole 4-5 of the rear connecting rod on the movable leaf side, which plays a significant role in improving the modality of the front hatch system. The flange corner 4-7 at the end of the fourth flange 4-6 also serves as a limit. When the front hatch is opened to a certain angle, the flange corner 4-7 will abut against the rear connecting rod 2, preventing the front hatch from opening further upward.

[0066] The aforementioned front hood hinge assembly has the following advantages:

[0067] 1. This invention relates to a hinge structure for an automobile hood. The limiting block on the hinge controls the lower closing position of the hinge by abutting against the hinge link. In contrast, the limiting block on the existing four-bar hinge restricts the lower closing position of the hinge by abutting against the hinge hinge leaf. Actual verification shows that the limiting block arrangement in this invention can better ensure the vertical stability of the hood and improve the modal stability of the entire hood.

[0068] 2. The present invention relates to a hinge structure for a car hood, wherein the hinge fixing page 1 is fixed to the side surface of the car body. Compared with the previous four-link hinge fixing page 1 fixed to the vertical surface of the car body, the hinge fixing page 1 in the present invention saves more material and has a better fixing effect, which is more conducive to improving the modal and stiffness performance of the entire hinge system.

[0069] 3. This invention relates to a hinge structure for an automobile hood, wherein the connecting rods of the hinge are provided with reinforcing ribs and reinforcing flanges, which greatly improves the bending stiffness of the connecting rods and ensures the stability of the hinge system and the hood.

[0070] 4. This invention relates to a hinge structure for an automobile hood. In addition to the hood connection hole, the hinge movable page 4 is also provided with a strut ball pin mounting hole, which improves the integration performance and utilization rate of the hinge and saves the design and manufacturing costs of the hood.

[0071] Secondly, embodiments of the present invention also provide a vehicle including a front hood hinge assembly with the above-described structure. The front hood hinge assembly can be referred to... Figures 1 to 6 The details will not be elaborated further here. Since the vehicle of the present invention includes the hood hinge assembly described above, it has all the advantages of the hood hinge assembly described above.

[0072] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A front hood hinge assembly, comprising a fixed hinge leaf, a rear linkage, a front linkage, and a movable hinge leaf, characterized in that: It also includes a limiting block disposed on the hinge fixing page, the limiting block being configured to contact the rear linkage to limit the range of downward movement of the rear linkage when the front hatch is closed.

2. The front hood hinge assembly according to claim 1, characterized in that: The two ends of the front link are rotatably connected to the hinge fixed page and the hinge movable page, respectively, and the two ends of the rear link are rotatably connected to the hinge fixed page and the hinge movable page, respectively. The rear link and the front link are not arranged in parallel.

3. The front hood hinge assembly according to claim 1, characterized in that: The lower edge of the hinge fixing page is provided with a first flange, and the rear edge of the hinge fixing page is provided with a limiting block mounting surface. The limiting block mounting surface and the first flange are on the same transition surface, and the limiting block is mounted on the limiting block mounting surface.

4. The front hatch hinge assembly according to any one of claims 1 to 3, characterized in that: The upper edge of the rear link is provided with a second flange, which extends along the entire length of the rear link.

5. The front hood hinge assembly according to claim 4, characterized in that: The rear connecting rod is provided with a first reinforcing rib, which extends along the length of the rear connecting rod.

6. The front hood hinge assembly according to claim 5, characterized in that: The rear connecting rod is provided with a limiting block mating surface for contacting the limiting block, and the first reinforcing rib is located between the second flange and the limiting block mating surface.

7. The front hood hinge assembly according to claim 6, characterized in that: The mounting surface of the limiting block is inclined, and the distance between the upper end of the mounting surface of the limiting block and the windshield is less than the distance between the lower end of the mounting surface of the limiting block and the windshield. The limiting block is located between the upper and lower ends of the mounting surface of the limiting block. When the hood is closed, the mating surface of the limiting block is inclined, and the distance between the upper end of the mating surface of the limiting block and the windshield is less than the distance between the lower end of the mating surface of the limiting block and the windshield.

8. The front hood hinge assembly according to any one of claims 1 to 7, characterized in that: The upper edge of the front link is provided with a third flange, which extends along the entire length of the front link.

9. The front hood hinge assembly according to claim 8, characterized in that: The front connecting rod is provided with a second reinforcing rib, which extends along the length of the front connecting rod.

10. The front hatch hinge assembly according to any one of claims 1 to 9, characterized in that: The hinge active page includes a lower connecting part and an upper connecting part connected to the lower connecting part. Two upper connecting parts are provided. The lower connecting part is rotatably connected to the front link and the rear link. The two upper connecting parts are connected to the front hatch. A ball pin is provided on the lower connecting part.

11. The front hatch hinge assembly according to claim 10, characterized in that: The hinge movable page also includes a reinforcing platform connected to the lower connecting part of the movable page. The reinforcing platform is located between and connected to the upper connecting parts of the two movable pages, and a gap is formed between the reinforcing platform and the front hatch.

12. The front hatch hinge assembly according to claim 11, characterized in that: The reinforcing platform is provided with weight reduction holes.

13. The front hood hinge assembly according to claim 11, characterized in that: The hinge flap also includes a fourth flange, which is connected to the upper connecting part of the flap. The rear connecting rod and the fourth flange are connected to the same end of the lower connecting part of the flap. The fourth flange and the upper connecting part of the flap extend to the same side of the lower connecting part of the flap. The flange corner at the end of the fourth flange is configured to contact the rear connecting rod and to play a limiting role when the front hatch is opened.

14. A vehicle, characterized in that: Includes the front hatch hinge assembly as described in any one of claims 1 to 13.

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