Crumple type hinge assembly and automobile

Abstract

The invention relates to a crumple type hinge assembly and an automobile, the crumple type hinge assembly comprises a hinge arm and a fixing plate, the fixing plate is provided with a first end and a second end which are located on the two opposite sides, the first end is pivotally connected with the hinge arm, and the second end is used for being connected with an automobile body; a first bending part and a second bending part are arranged on the fixing plate in a spaced mode in the direction from the first end to the second end, the bending direction of the first bending part is opposite to the bending direction of the second bending part, and the rigidity of the second bending part is larger than that of the first bending part; a crumple part is arranged between the first bending part and the second bending part, and the rigidity of the first bending part is larger than that of the crumple part. According to the hinge assembly, the crumple energy-absorbing part is additionally arranged through the crumple part, the crumple part can conduct first-time energy-absorbing deformation before the first bent part, and in the deformation process of the first bent part and the second bent part, the crumple part can conduct second-time energy-absorbing deformation, so that the crumple energy-absorbing effect of the hinge assembly is further improved, and the service life of the hinge assembly is prolonged. And the passive safety performance of the automobile can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to a collapse-type hinge assembly and an automobile. Background Art

[0002] With the rapid development of automobile industry technology, automobiles have become an indispensable means of transportation in people's daily lives. At the same time, automobile safety has also received more and more attention from people. Automobile safety is divided into occupant protection and pedestrian protection. Occupant protection is the protection for drivers and passengers in the car, and pedestrian protection is the protection for people outside the car. Pedestrian protection is divided into active pedestrian protection and passive pedestrian protection. Among them, passive pedestrian protection generally designs the car's front hood system, front protection system, etc. as structures with low damage values. In order to effectively protect pedestrians, the most common and effective way is to increase the collision buffer space of the car's front hood (engine hood) when pedestrians collide with vehicles to absorb the energy generated during the collision, thereby reducing damage to pedestrians.

[0003] In the prior art, the front hood of a car is connected to the main body of the car by a hinge assembly, which includes an articulated arm and a fixed leaf plate. The fixed leaf plate is a simple vertical structure, or various shapes of reinforcing ribs are added to the vertical structure to make the hinge very strong, which provides sufficient strength for supporting the force after the engine hood is opened. However, the position of the hinge is generally within the force area where the pedestrian's head hits from top to bottom. Therefore, the high-strength hinge is not easy to be crushed and deformed under the impact of the collision, and cannot achieve efficient absorption of the collision energy. For this reason, the fixed leaf plate in the related art has a bending portion in the vertical direction to reduce the structural strength of the fixed leaf plate in the vertical direction, so that the fixed leaf plate can quickly collapse and absorb energy when the car collides with the pedestrian. However, the hinge assembly in the above technology only reduces the structural strength of the fixed leaf plate through the bending portion, and its collapse energy absorption performance is limited. Summary of the invention

[0004] One of the purposes of the present invention is to provide a collapse-type hinge assembly to further improve the collapse energy absorption performance of the hinge assembly; the second purpose is to provide a car.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A collapse hinge assembly is used in an automobile, the hinge assembly includes an articulated arm and a fixed plate, the articulated arm is arranged on one side of the fixed plate, the fixed plate has a first end and a second end located on opposite sides, the first end is pivotally connected to the articulated arm, and the second end is used to be connected to the automobile body; the fixed plate has a first bending portion and a second bending portion spaced apart along a first direction, the bending direction of the first bending portion is opposite to the bending direction of the second bending portion, and the stiffness of the second bending portion is greater than the stiffness of the first bending portion; a collapse portion is provided between the first bending portion and the second bending portion, and the stiffness of the first bending portion is greater than the stiffness of the collapse portion; wherein the first direction is the direction from the first end to the second end.

[0007] According to the above technical means, since the rigidity of the second bending part is greater than that of the first bending part, and the rigidity of the first bending part is greater than that of the collapsing part, the fixed plate can be deformed in sequence, thereby guiding the fixed plate to collapse, and avoiding collision with other parts of the car during the sinking of the front hood of the car. The collapsing part can undergo the first energy absorption deformation before the first bending part, and during the energy absorption deformation process of the first bending part and the second bending part, since the rigidity of the collapsing part is less than that of the first bending part and the second bending part, the collapsing part can undergo the second energy absorption deformation. Therefore, the collapsing energy absorption performance of the fixed plate is further enhanced by the first bending part, the second bending part and the collapsing part, which is beneficial to reducing the damage to pedestrians in collisions.

[0008] Furthermore, the collapsed portion is protruding toward one side in the thickness direction of the fixing plate, and a groove is formed on the other side in the thickness direction of the fixing plate.

[0009] According to the above technical means, a quasi-bending deformation position is formed between the first bending portion and the second bending portion by the collapse portion, and the collapse portion can be subjected to bending deformation and stretching deformation successively, thereby further improving the collapse energy absorption effect of the hinge assembly.

[0010] Furthermore, the groove is located on a side of the fixing plate away from the articulated arm.

[0011] According to the above technical means, it is beneficial for the fixing plate to bend and deform around the collapsed portion toward the side of the hinged arm.

[0012] Furthermore, a collapsed section is formed between the first bent portion and the second bent portion, and in the first direction, a plate length of the collapsed section is at least one half of a plate length of the fixed plate.

[0013] According to the above technical means, by limiting the plate length of the collapse section, the fixed plate has a larger sinking space in the vertical direction, thereby improving the energy absorption performance of the fixed plate, which is beneficial to improving the collapse energy absorption performance of the hinge assembly.

[0014] Furthermore, the board width at the first bending portion is smaller than the board width at the second bending portion.

[0015] According to the above technical means, the rigidity of the first bending portion is smaller than that of the second bending portion, thereby ensuring that the first bending portion is deformed before the second bending portion.

[0016] Furthermore, the fixing plate is provided with a weight-reducing hole extending along a first direction from the first bending portion to the second bending portion.

[0017] According to the above technical means, it is helpful to reduce the weight of the hinge assembly.

[0018] Furthermore, the plate surface at the first end and the plate surface at the second end are parallel to each other.

[0019] According to the above technical means, the fixing plate can be installed vertically on the automobile body, reducing the space occupied by the fixing plate in the lateral direction, thereby providing a larger collapse space for the hinge assembly in the lateral direction.

[0020] Furthermore, the first bending portion and the second bending portion are provided with reinforcing ribs.

[0021] According to the above technical means, it is possible to avoid excessive reduction in the strength of the fixed structure due to the provision of the weight-reducing holes, which is beneficial to ensuring the structural strength of the plate body of the first bending part and the second bending part.

[0022] Furthermore, one end of the articulated arm hinged to the first end has a limiting protrusion, and the first end has a limiting portion, and the limiting protrusion and the limiting portion are limitedly matched to limit the rotation angle of the articulated arm.

[0023] According to the above technical means, it is helpful to limit the rotation angle of the articulated arm.

[0024] A car comprises a front cover and a main body of the car, wherein the front cover is connected with the main body of the car through the hinge assembly.

[0025] According to the above technical means, the hinge assembly can effectively cope with pedestrian collisions, enhance the car's crush energy absorption performance, and thus improve the car's passive safety performance.

[0026] Beneficial effects of the present invention:

[0027] (1) The present invention increases the crushing energy absorption area of ​​the fixed plate by adding a crushing portion between the first bending portion and the second bending portion, which is beneficial to improving the crushing energy absorption effect of the hinge assembly.

[0028] (2) The crushed portion in the present invention can undergo the first energy absorption deformation before the first bending portion, and because the stiffness of the crushed portion is less than that of the first bending portion and the second bending portion, the crushed portion can undergo the second energy absorption deformation, thereby further improving the crushing energy absorption effect of the hinge assembly, which is beneficial to improving the passive safety performance of the automobile and reducing pedestrian collision injuries.

[0029] (3) The present invention limits the stiffness of the first bending portion, the collapsed portion and the second bending portion, thereby guiding the fixing plate to deform along a preset deformation direction, preventing the hinge assembly from driving the front hood of the automobile to buffer and sink and collide with other parts of the automobile, thereby improving the collapse stability of the hinge assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of a collapse hinge assembly according to an embodiment of the present invention;

[0031] Figure 2 An exploded schematic diagram of a collapse hinge assembly according to an embodiment of the present invention;

[0032] Figure 3 is a schematic diagram of the rotation state of the articulated arm according to an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of the structure of a fixing plate according to an embodiment of the present invention;

[0034] Figure 5 is a side view of a fixing plate according to an embodiment of the present invention;

[0035] Figure 6 is a schematic diagram of an articulated arm according to an embodiment of the present invention;

[0036] Figure 7 It is a schematic diagram of the installation of the collapse hinge assembly on the automobile in the embodiment of the present invention.

[0037] Among them, 100-fixing plate, 12-rivet joint, 13-bushing, 101-first bending portion, 102-second bending portion, 103-collapse portion, 104-reinforcement rib, 105-weight reduction hole, 106-first fixing hole, 107-first pivot hole, 110-first end, 111-limiting portion, 120-second end, 200-articulated arm, 210-limiting protrusion, 201-second pivot hole, 202-second fixing hole, 203-strip reinforcement rib, 204-strut mounting ball head, 300-car front cover, 400-car body. DETAILED DESCRIPTION

[0038] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0039] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0040] See also Figures 1 to 3 This embodiment proposes a collapse hinge assembly, which is applied to automobiles. The hinge assembly includes an articulated arm 200 and a fixed plate 100. The articulated arm 200 is arranged on one side of the fixed plate 100. The fixed plate 100 has a first end 110 and a second end 120 located on opposite sides. The first end 110 is pivotally connected to the articulated arm 200, and the second end 120 is connected to the automobile body 400.

[0041] See also Figure 7 The hinge assembly can be arranged between the front cover 300 of the automobile and the main body 400 of the automobile. One end of the articulated arm 200 is fixedly connected to the front cover 300 of the automobile, and the other end is pivotally connected to the fixed plate 100. The articulated arm 200 can pivot relative to the first end 110 of the fixed plate 100 to drive the front cover 300 of the automobile to rotate. The fixed plate 100 is fixedly installed on the main body 400 of the automobile to support and fix the hinge assembly and the front cover 300 of the automobile. In this embodiment, the fixed plate 100 is arranged vertically, the upper end of the fixed plate 100 is pivotally connected to the articulated arm 200 as the first end 110, and the lower end of the fixed plate 100 is connected to the main body 400 of the automobile as the second end 120.

[0042] The fixing plate 100 is provided with a first bending portion 101 and a second bending portion 102 at intervals along a first direction, the bending direction of the first bending portion 101 is opposite to the bending direction of the second bending portion 102, and the rigidity of the second bending portion 102 is greater than the rigidity of the first bending portion 101; a collapsing portion 103 is provided between the first bending portion 101 and the second bending portion 102, and the rigidity of the first bending portion 101 is greater than the rigidity of the collapsing portion 103. The first direction is the direction from the first end 110 to the second end 120, that is, Figure 1 and Figure 2 The X direction shown in .

[0043] Since the fixing plate 100 has the first bending portion 101 and the second bending portion 102 with opposite bending directions, it can be understood that in the transverse direction, the first bending portion 101 and the second bending portion 102 are staggered with each other, the first end 110 and the second end 120 of the fixing plate 100 are staggered with each other, and a collapse space for the first end 110 to sink is formed below the first end 110. In this way, the structural strength of the fixing plate 100 in the vertical direction is reduced, and the first end 110 of the fixing plate 100 can drive the hinged arm 200 hinged thereto to sink vertically, thereby driving the front cover 300 of the automobile to buffer downward, so as to timely respond to the situation where pedestrians collide with the front cover 300 of the automobile, which is conducive to reducing the collision damage caused by the automobile to the pedestrian. Among them, in the vertical direction, the first bending portion 101, the collapse portion 103 and the second bending portion 102 are arranged in sequence from top to bottom, the second bending portion 102 has the strongest rigidity, the first bending portion 101 is second, and the collapse portion 103 has the smallest rigidity. When the front cover 300 of the automobile is hit by a pedestrian, the collision force is transmitted to the first end 110 of the fixing plate 100 through the front cover 300 of the automobile, and the fixing plate 100 is deformed under the action of the collision force, first at the collapsed portion 103, then at the first bending portion 101, and finally at the second bending portion 102. The collapsed portion 103 can undergo the first energy absorption deformation before the first bending portion 101, and because the stiffness of the collapsed portion 103 is less than that of the first bending portion 101 and the second bending portion 102, during the deformation process of the first bending portion 101 and the second bending portion 102, the collapsed portion 103 can undergo the second energy absorption deformation, thereby further improving the collapse energy absorption effect of the hinge assembly. Therefore, the fixing plate 100 in the embodiment of the present application can be deformed at the first bending portion 101 , the collapsed portion 103 and the second bending portion 102 , which is beneficial for the fixing plate 100 to absorb the collision impact energy transmitted by the automobile front cover 300 .

[0044] For ease of understanding, the plate body portion between the first bending portion 101 and the second bending portion 102 is defined as a collapse section, and the collapse section 103 is located in the collapse section. During the collapse and energy absorption process of the fixed plate 100, due to the existence of the collapse section, the fixed plate 100 has better collapse and energy absorption performance. Specifically, on the one hand, during the collapse of the fixed plate 100, the collapse section itself can adapt to the sinking of the first end 110 of the fixed plate 100, and the collapse section deforms downward with the sinking of the first end 110, that is, the collapse section can provide a larger sinking buffer space for the front cover 300 of the automobile in the vertical direction, so as to improve the absorption effect of the fixed plate 100 on the impact energy. On the other hand, since the collapse section is located between the first bending portion 101 and the second bending portion 102, during the downward deformation process of the collapse section, the collapse section produces a certain tensile deformation between the first bending portion 101 and the second bending portion 102, which is conducive to the collapse section absorbing the impact energy, thereby improving the collapse and energy absorption effect of the fixed plate 100. Therefore, compared with the related art, the embodiments of the present application further improve the crushing energy absorption performance of the hinge assembly through the crushing portion of the crushing section, thereby improving the passive safety performance of the automobile.

[0045] In addition, in this embodiment, the bending directions of the first bending portion 101 and the second bending portion 102 are opposite, and the two are spaced apart. When the first bending portion 101 is deformed before the second bending portion 102, during the collapse and energy absorption process, the plate above the first bending portion 101 is close to the plate below the second bending portion 102. In this way, the fixed plate 100 is similar to a "folding" deformation, which is conducive to guiding the deformation direction of the fixed plate 100 and preventing the front cover 300 of the automobile from causing additional damage to other parts of the automobile.

[0046] Optionally, the first bending portion 101 and the second bending portion 102 are arranged parallel to each other, and the first bending portion 101 and the second bending portion 102 cover the entire width direction of the plate. The rigidity of the collapsed portion 103 is smaller than that of the first bending portion 101 and the second bending portion 102, so the structural strength of the collapsed portion 103 is also relatively low. The rigidity of the collapsed portion 103 can be made smaller than that of the first bending portion 101 and the second bending portion 102 by limiting the materials at different positions.

[0047] See also Figure 2The first end 110 of the fixing plate 100 is provided with a first pivot hole 107, and one end of the hinge arm 200 is provided with a second pivot hole 201. The first end 110 and the hinge arm 200 are pivotally connected through a rotating shaft or a rivet head 12. For example, the rivet head 12 is inserted into the first pivot hole 107 and the second pivot hole 201, and a bushing 13 is added to reinforce the pivoting part. The second end 120 is provided with a first fixing hole 106, and the second end 120 is bolted to the automobile body 400 through the first fixing hole 106. The articulated arm 200 is provided with a second fixing hole 202 on a side away from the first end 110 of the fixing plate 100, and the articulated arm 200 is bolted to the front cover 300 of the automobile through the second fixing hole 202. In addition, a support rod mounting ball head 204 is installed at one end of the articulated arm 200 away from the first end 110, and the support rod mounting ball head 204 is used to connect the support rod, and the support rod pushes the support rod mounting ball head 204 to push the front cover 300 of the automobile to open and close. The articulated arm 200 is also provided with a strip reinforcement rib 203 on its periphery along its extension direction to improve the structural strength.

[0048] Furthermore, in the first direction, the length of the plate surface of the collapsed section is at least one-half of the length of the plate surface of the fixed plate 100. By limiting the length of the plate surface of the collapsed section, the fixed plate 100 has a larger sinking space in the vertical direction, thereby improving the energy absorption performance of the fixed plate 100, which is beneficial to improving the collapse energy absorption performance of the hinge assembly.

[0049] In the embodiments of this application, please refer to Figure 2 and Figure 5 , the collapse portion 103 is convexly arranged to one side of the fixing plate 100 in the thickness direction, and the collapse portion 103 is formed with a groove on the other side of the fixing plate 100 in the thickness direction. In other words, the fixing plate 100 forms a bending part at the collapse portion 103, and a pseudo-bending deformation position is formed between the first bending portion 101 and the second bending portion 102 through the collapse portion 103, so that the rigidity of the collapse portion 103 is smaller than the rigidity of the first bending portion 101 and the second bending portion 102, thereby facilitating the collapse of the fixing plate 100 and absorbing the impact energy, and the collapse portion 103 with a groove structure is conducive to guiding the fixing plate 100 to bend and deform in a preset direction.

[0050] Specifically, when the collapse portion 103 deforms before the first bending portion 101, the collapse portion 103 absorbs the impact energy of the collision and generates deformations such as bending and stretching, which is beneficial to improving the collapse energy absorption effect of the hinge assembly. When the collapse section between the first bending portion 101 and the second bending portion 102 is in a stretched state, the collapse portion 103 gradually tends to be straight under the action of the stretching force, so that the collapse portion 103 can continue to absorb the impact energy of the collision, further improving the collapse energy absorption effect of the hinge assembly. In addition, after the collapse portion 103 is stretched, the plate length of the collapse section increases, so that the depth of the first end 110 driving the hinge arm 200 to sink increases, which is beneficial to enhancing the collapse energy absorption effect of the hinge assembly.

[0051] Optionally, the cross-sectional shape of the collapsed portion 103 at the middle position between the first bending portion 101 and the second bending portion 102 in the side view direction is an arc shape, which is formed by a stamping process, wherein the groove formed by the collapsed portion 103 is parallel to the first bending portion 101 and the second bending portion 102.

[0052] Preferably, the groove is located on the side of the fixed plate 100 away from the articulated arm 200. The collapsed portion 103 protrudes toward one side of the articulated arm 200, and a groove is formed on the side facing away from the articulated arm 200. In this way, during the initial deformation, the groove opening gradually becomes larger, the groove edges on both sides of the groove move away from each other, and the collapsed section is bent and deformed at the collapsed portion 103. The collapsed portion 103 plays a guiding role in the deformation process of the fixed plate 100, which is conducive to ensuring the deformation direction of the fixed plate 100 and reducing the impact of external impact on other components in the vehicle. Compared with locating the groove on the side of the fixed plate 100 close to the articulated arm 200, it avoids the groove edges on both sides of the groove preventing deformation during the bending deformation of the fixed plate toward the articulated arm 200, which is conducive to the bending deformation of the fixed plate 100 toward the articulated arm around the collapsed portion. When the collapsed section between the first bending portion 101 and the second bending portion 102 is in a stretched state, the arc-shaped collapsed section 103 gradually tends to be straight under the action of the stretching force, that is, the arc-shaped collapsed section 103 can further absorb impact energy, which is beneficial to improving the collapse energy absorption effect of the hinge assembly. At the same time, after the collapsed section 103 is stretched straight, the length of the collapsed section is increased, thereby increasing the buffer sinking depth of the first end 110 of the fixing plate 100.

[0053] Optionally, a plurality of collapse parts 103 are provided on the collapse section, and the collapse parts 103 are in a groove structure and are arranged parallel to each other. In this way, when the collapse section is in a stretched state, the plurality of collapse parts 103 absorb impact energy and are gradually stretched straight, which is beneficial to increasing the collapse energy absorption performance of the hinge assembly.

[0054] In the embodiments of this application, please refer to Figure 3 and Figure 4, the plate width of the first bending portion 101 is smaller than the plate width of the second bending portion 102. By limiting the plate width of the first bending portion 101 and the plate width of the second bending portion 102, the rigidity of the first bending portion 101 is smaller than the rigidity of the second bending portion 102, ensuring that the first bending portion 101 deforms before the second bending portion 102. Figure 1 and Figure 2 The Y direction shown is the width direction, and the board width is the length of the fixing plate 100 in the Y direction.

[0055] In the embodiments of this application, please refer to Figures 1 to 4 The fixing plate 100 is provided with a weight-reducing hole 105 extending along the first direction from the first bending portion 101 to the second bending portion 102. The weight-reducing hole 105 is provided to reduce the weight of the hinge assembly, thereby reducing the weight of the entire automobile; on the other hand, the weight-reducing hole 105 can limit the actual width of the fixing plate 100 at the collapsed portion 103, thereby facilitating the design of the rigidity of the collapsed portion 103, that is, the groove length of the collapsed portion 103 is designed to be smaller than that of the first bending portion 101 and the second bending portion 102, for example, a diamond or elliptical weight-reducing hole 105 is used.

[0056] Exemplarily, the lightening hole 105 is rectangular and extends from the first bending portion 101 to the second bending portion 102 along the length direction of the crush section, so that the fixing plate 100 can be deformed in the crush section to ensure the crushing energy absorption effect.

[0057] In the present application, please refer to Figure 5 , the plate surface of the first end 110 and the plate surface of the second end 120 are parallel to each other. The mounting end surface of the first end 110 and the mounting end surface of the second end 120 are both located in the vertical direction, so that the fixing plate 100 is vertically mounted on the automobile body 400. In the related art, the second end 120 of the fixing plate 100 is horizontally arranged. Compared with the prior art, the present application effectively reduces the space occupied by the fixing plate 100 in the horizontal direction, thereby providing a larger collapse space for the hinge assembly in the horizontal direction, and at the same time helps to reduce the scratch damage to the horizontal side of the hinge assembly.

[0058] In the present application, please refer to Figures 4 to 5 , the first bending portion 101 and the second bending portion 102 are provided with reinforcing ribs 104. The first bending portion 101 and the second bending portion 102 are structurally reinforced by the reinforcing ribs 104, so as to avoid excessive reduction of the structural strength of the fixing plate 100 due to the provision of the lightening holes 105, which is conducive to ensuring the structural strength of the plate bodies of the first bending portion 101 and the second bending portion 102, thereby satisfying the most basic supporting function of the fixing plate 100. Preferably, the reinforcing ribs 104 are triangular reinforcing ribs 104, square ribs, etc.

[0059] In the present application, please refer to Figure 4 and Figure 6 The end of the articulated arm 200 hinged to the first end 110 has a limiting protrusion 210, and the first end 110 has a limiting portion 111. The limiting protrusion 210 and the limiting portion 111 are limited to limit the rotation angle of the articulated arm 200. Due to the limiting cooperation between the limiting protrusion 210 and the limiting portion 111, the rotation angle of the articulated arm 200 is limited.

[0060] Optionally, the outer circumference of the first end 110 is in an arc shape, and the arc-shaped area corresponds to the rotation range of the automobile front cover 300 in daily use. The limiting portion 111 is provided on the rotation path of the limiting protrusion 210 corresponding to the first end 110 to limit the limiting protrusion 210. The end of the articulated arm 200 is bent to form the limiting protrusion 210, and rotates along the outer circumferential arc-shaped contour of the first fixing member, so that the limiting protrusion 210 and the limiting portion 111 are limitedly matched to achieve limited matching.

[0061] See also Figure 7 The present application also proposes a car, including a car front hood 300 and a car body 400, wherein the car front hood 300 is openably connected to the car body 400 through the above-mentioned hinge assembly. Therefore, the car of the embodiment of the present application has the beneficial effects of the collapse hinge assembly of any of the above-mentioned schemes, which will not be repeated here. Through the above analysis, it can be seen that the car of the embodiment of the present application can effectively deal with pedestrian collisions through the hinge assembly, enhance the collapse energy absorption effect of the car, and thus improve the passive safety performance of the car.

[0062] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or change made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A collapse hinge assembly, applied to an automobile, characterized in that: The collapse hinge assembly comprises an articulated arm (200) and a fixed plate (100), wherein the articulated arm (200) is arranged on one side of the fixed plate (100), wherein: The fixing plate (100) has a first end (110) and a second end (120) located at opposite sides, the first end (110) being pivotally connected to the hinge arm (200), and the second end (120) being used to be connected to a vehicle body; The fixing plate (100) is provided with a first bending portion (101) and a second bending portion (102) spaced apart along a first direction, the bending direction of the first bending portion (101) is opposite to the bending direction of the second bending portion (102), and the stiffness of the second bending portion (102) is greater than the stiffness of the first bending portion (101); a shrinkage portion (103) is provided between the first bending portion (101) and the second bending portion (102), and the stiffness of the first bending portion (101) is greater than the stiffness of the shrinkage portion (103); wherein the first direction is the direction from the first end (110) to the second end (120).

2. The collapse hinge assembly according to claim 1, characterized in that: The collapsed portion (103) is protruding toward one side of the fixing plate (100) in the thickness direction, and a groove is formed on the other side of the fixing plate (100) in the thickness direction.

3. The collapse hinge assembly according to claim 2, characterized in that: The groove is located on a side of the fixing plate (100) away from the hinged arm (200).

4. The collapse hinge assembly according to claim 1, characterized in that: A collapsed section is formed between the first bent portion (101) and the second bent portion (102); in the first direction, the length of the collapsed section is at least half of the length of the fixed plate (100).

5. The collapse hinge assembly according to claim 1, characterized in that: The board width at the first bending portion (101) is smaller than the board width at the second bending portion (102).

6. The collapse hinge assembly according to claim 1, characterized in that: The fixing plate (100) is provided with a weight-reducing hole (105) extending along a first direction from the first bending portion (101) to the second bending portion (102).

7. The collapse hinge assembly according to claim 1, characterized in that: The plate surface of the first end (110) and the plate surface of the second end (120) are parallel to each other.

8. The collapse hinge assembly according to claim 1, characterized in that: The first bending portion (101) and the second bending portion (102) are provided with reinforcing ribs (104).

9. The collapse hinge assembly according to any one of claims 1 to 8, characterized in that: One end of the articulated arm (200) hinged to the first end (110) has a limiting protrusion (210), and the first end (110) has a limiting portion (111), and the limiting protrusion (210) and the limiting portion (111) are limitedly matched to limit the rotation angle of the articulated arm (200).

10. An automobile, comprising an automobile front cover (300) and an automobile body (400), characterized in that: The automobile front cover (300) is connected to the automobile body (400) via a collapse hinge assembly as claimed in any one of claims 1 to 9.

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