A retractable front bumper beam assembly and an automobile

Abstract

The present invention provides a telescopic front bumper beam assembly and an automobile. The anti-collision beam includes a fixed anti-collision beam and a movable anti-collision beam. The fixed anti-collision beam is connected to the movable anti-collision beam through a resilient device. The rear side surface of the movable anti-collision beam is parallel to and in surface contact with the front side surface of the fixed anti-collision beam. The angle between the rear side surface of the movable anti-collision beam and the horizontal plane is an acute angle, a right angle or an obtuse angle. The electronic components are located directly above or obliquely above the movable anti-collision beam. The present invention can simultaneously meet the requirements of styling, high-speed collision and low-speed collision performance, and improve the quality of the vehicle.

Description

Technical Field

[0001] The invention belongs to the technical field of automotive bumper assemblies, and particularly relates to a retractable front bumper crossbeam assembly, and also relates to an automobile applying the retractable front bumper crossbeam. Background Art

[0002] The front bumper crossbeam assembly of an automobile bears the collision load by means of deformation and energy absorption to protect the safety of the front-end body and passengers. As users' requirements for vehicle body safety, especially the safety during a collision, are getting higher and higher, the stiffness and strength of the vehicle body structure are continuously optimized. In particular, the ability of the entire front end, such as the anti-collision beam position, to resist collisions is getting higher and higher, which greatly improves the safety of the vehicle during a high-speed collision.

[0003] However, as some styling elements have been upgraded to brand genes, in order to ensure the styling effect, it often occurs that low-beam lights or fog lights with lighting functions, sensors, etc. are arranged in areas that intersect with the anti-collision beam. During a low-speed collision, the above-mentioned electronic components 1 are prone to be squeezed by the anti-collision beam, resulting in irreversible damage, which not only leads to high maintenance costs, but also does not meet the low-speed collision regulations. In the market background where users pay increasing attention to the vehicle appearance, vehicle R & D takes protecting the styling as the primary constraint condition. Facing the performance requirements of high-speed collision on the one hand and low-speed collision on the other hand, there is a certain contradiction between the two performance requirements. Analyzing the reasons from the structure, it is that the anti-collision beam, lights and other electronic components 1 jointly occupy the same vehicle position space, and cannot meet the high-speed collision performance and low-speed collision performance requirements at the same time; it is necessary to conduct exploratory innovation on the vehicle body structure to meet the high-speed collision and low-speed collision performance requirements at the same time.

[0004] In order to meet the requirements of low-speed collision, low-beam lights or fog lights with lighting functions are generally arranged at both ends of the anti-collision beam and cannot be located at the front end of the anti-collision beam. However, in view of the requirements of offset collision, the anti-collision beam needs to be arranged as far as possible outward in the Y direction, which leads to the low-beam lights or fog lights with lighting functions being arranged infinitely outward of the vehicle. To solve the above problems, existing technologies all sacrifice a certain performance. For example, sacrificing styling elements, moving the low-beam lights or fog lights with lighting functions to a position far from the anti-collision beam, so that the two no longer occupy the same vehicle position space; or by adding other safety configurations, reducing the requirements for the anti-collision beam & energy absorption box in offset collision, and reducing the Y-direction size of the anti-collision beam & energy absorption box; or by adjusting the headlight structure and specially designing the lens form to ensure that it can still be lit during a low-speed collision, but this will result in a huge cost increase. Summary of the Invention

[0005] The purpose of the invention is to provide a retractable front bumper crossbeam assembly that protects high-value components against low-speed collision on the premise of meeting high-speed collision.

[0006] The object of the present invention is achieved by the following technical solutions:

[0007] A telescopic front bumper beam assembly includes a crash beam, electronic components, and an energy absorption mechanism. Both ends of the energy absorption mechanism are connected to the vehicle frame and the crash beam. The crash beam includes a fixed crash beam 6, a movable crash beam 2, and electronic components 1. The fixed crash beam 6 is connected to the movable crash beam 2 through a rebounding device. The rear side of the movable crash beam 2 is parallel to and in surface contact with the front side of the fixed crash beam 6. The angle between the rear side of the movable crash beam 2 and the horizontal plane is an acute angle, a right angle, or an obtuse angle. The electronic components 1 are located directly above or obliquely above the movable crash beam 2.

[0008] As a more preferable technical solution of the present invention, the rebounding device includes a restraint arm 4 and a rebounding structure. The restraint arm 4 is an extended structure at the top end of the fixed crash beam 6. The rebounding structure is installed between the restraint arm 4 and the movable crash beam 2 and is connected to the restraint arm 4 and the movable crash beam 2.

[0009] As a more preferable technical solution of the present invention, the rebounding structure is a restraint spring 5. Both ends of the restraint spring 5 are connected to the restraint arm 4 and the movable crash beam 2.

[0010] As a more preferable technical solution of the present invention, the bumper beam assembly further includes a locking structure. The locking structure is installed inside the fixed crash beam 6 and is used to lock the fixed crash beam 6 and the movable crash beam 2.

[0011] As a more preferable technical solution of the present invention, the locking structure includes a locking rod 3 and a power source. One end of the locking rod 3 is connected to the power source. The power source is installed inside the fixed crash beam 6. The other end of the locking rod 3 sequentially passes through the locking holes on the fixed crash beam 6 and the movable crash beam 2.

[0012] As a more preferable technical solution of the present invention, the power source is an electric power source or a natural power source.

[0013] As a more preferable technical solution of the present invention, the electric power source is a motor.

[0014] As a more preferable technical solution of the present invention, the natural power source includes a windward mechanism 8. The windward structure is connected to the locking rod 3 through a hinge 7.

[0015] As a more preferable technical solution of the present invention, the Y-direction cross-sections of the fixed crash beam 6 and the movable crash beam 2 are both trapezoids. The Y-direction cross-section of the fixed crash beam 6 is a regular trapezoid, and the Y-direction cross-section of the movable crash beam 2 is an inverted trapezoid.

[0016] As a more preferable technical solution of the present invention, the Y-direction cross-sections of the fixed anti-collision beam 6 and the movable anti-collision beam 2 are both trapezoidal, the Y-direction cross-section of the movable anti-collision beam 2 is a regular trapezoid, and the Y-direction cross-section of the fixed anti-collision beam 6 is an inverted trapezoid.

[0017] As a more preferable technical solution of the present invention, the cross-sections of the fixed anti-collision beam 6 and the movable anti-collision beam 2 are both rectangular.

[0018] As a more preferable technical solution of the present invention, there is one movable anti-collision beam 2 and it is of the same length as the fixed anti-collision beam 6.

[0019] As a more preferable technical solution of the present invention, multiple movable anti-collision beams 2 are installed on the fixed anti-collision beam 6.

[0020] As a more preferable technical solution of the present invention, several support ribs are provided at the centers of the Y-direction cross-sections of the movable anti-collision beam 2 and the fixed anti-collision beam 6, and the support ribs are arranged horizontally or vertically or crosswise.

[0021] As a more preferable technical solution of the present invention, the electronic components are fog lights or sensors, etc.

[0022] Another object of the present invention is to provide an automobile, and the automobile includes the above-mentioned retractable front bumper crossbeam assembly.

[0023] The beneficial effects are as follows:

[0024] The retractable front bumper crossbeam assembly provided by the present invention can simultaneously meet the requirements of styling, high-speed collision, and low-speed collision performance, and improve the quality of the vehicle. Description of the Drawings

[0025] Figure 1 It is a schematic cross-sectional structure view of the retractable front bumper crossbeam assembly of the present invention. Detailed Embodiments

[0026] To make the technical problems solved by the present invention, the technical solutions adopted, and the achieved technical effects clearer, the technical solutions of the present invention will be further described below with reference to the drawings and through specific embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings, rather than all of them.

[0027] The present embodiment provides an anti-collision beam, electronic components and an energy absorbing mechanism, wherein both ends of the energy absorbing mechanism are connected to the vehicle frame and the anti-collision beam, the anti-collision beam comprises a fixed anti-collision beam 6, a movable anti-collision beam 2 and an electronic component 1, the fixed anti-collision beam 6 is connected to the movable anti-collision beam 2 through a rebound device, the rear side surface of the movable anti-collision beam 2 is parallel to the front side surface of the fixed anti-collision beam 6 and is in surface contact with the surface, the angle between the rear side surface of the movable anti-collision beam 2 and the horizontal plane is an acute angle, a right angle or an obtuse angle, and the electronic component 1 is located directly above or obliquely above the movable anti-collision beam 2.

[0028] In some embodiments, the rebound device includes a restraint arm 4 and a rebound structure, the restraint arm 4 is an extension structure of the top end of the fixed anti-collision beam 6, and the rebound structure is installed between the restraint arm 4 and the movable anti-collision beam 2, and is connected to the restraint arm 4 and the movable anti-collision beam 2.

[0029] In some embodiments, the rebound structure is a restraint spring 5 , and both ends of the restraint spring 5 are connected to the restraint arm 4 and the movable anti-collision beam 2 .

[0030] In some embodiments, the bumper beam assembly further includes a locking structure, which is installed inside the fixed anti-collision beam 6 and is used to lock the fixed anti-collision beam 6 and the movable anti-collision beam 2 .

[0031] In some embodiments, the locking structure includes a locking rod 3 and a power source, one end of the locking rod 3 is connected to the power source, the power source is installed inside the fixed anti-collision beam 6, and the other end of the locking rod 3 passes through the locking holes on the fixed anti-collision beam 6 and the movable anti-collision beam 2 in turn.

[0032] In some embodiments, the power source is an electric power source or a natural power source.

[0033] In some embodiments, the electric power source is a motor.

[0034] In some embodiments, the natural power source includes a windward mechanism 8 , and the windward structure is hinged to the locking rod 3 .

[0035] In some embodiments, the Y-direction cross-sections of the fixed anti-collision beam 6 and the movable anti-collision beam 2 are both trapezoidal, the Y-direction cross-section of the fixed anti-collision beam 6 is a regular trapezoid, and the Y-direction cross-section of the movable anti-collision beam 2 is an inverted trapezoid.

[0036] In some embodiments, the Y-direction cross-section of the movable anti-collision beam 2 is a regular trapezoid and the Y-direction cross-section of the fixed anti-collision beam 6 is an inverted trapezoid.

[0037] In some embodiments, the cross-sections of the fixed anti-collision beam 6 and the movable anti-collision beam 2 are both rectangular.

[0038] In some embodiments, the movable anti-collision beam 2 is one piece and has the same length as the fixed anti-collision beam 6.

[0039] In some embodiments, multiple movable anti-collision beams 2 are installed on the fixed anti-collision beam 6.

[0040] In some embodiments, several support ribs are provided at the center of the Y-direction cross-section of the movable anti-collision beam 2 and the fixed anti-collision beam 6, and the support ribs are arranged horizontally, vertically or crosswise.

[0041] In the present invention, the length direction of the anti-collision beam is perpendicular to the advancing direction of the vehicle.

[0042] In the present invention, the cross-section is parallel to the advancing direction of the vehicle.

[0043] In the present invention, "rear" refers to the direction of the vehicle tail, opposite to the direction of the front vehicle head. The rear side refers to the surface close to the vehicle tail direction, and the front side refers to the surface close to the vehicle head direction.

[0044] Another embodiment of the present invention provides an automobile, which is equipped with the above-mentioned retractable front bumper beam assembly, including its fixed anti-collision beam and movable anti-collision beam. There are restraint arms on the fixed anti-collision beam. The restraint arms can penetrate the anti-collision beam along the Y direction and can be two or more protruding parts, which are connected to the movable anti-collision beam through restraint springs to achieve the purpose of restraining the movable anti-collision beam. In the low-speed driving or stationary state, the upper surface of the movable anti-collision beam is in contact with the bottom surface of the restraint arm. When a low-speed collision occurs, the inclined surface guiding part on the lamp housing will contact the movable anti-collision beam and push it downward. After the collision ends, the movable anti-collision beam will be reset under the action of the spring force.

[0045] A locking mechanism is arranged inside the fixed anti-collision beam of the present invention. When the vehicle speed or vehicle acceleration exceeds a certain value, the locking mechanism acts to prevent the movable anti-collision beam from sinking and ensure the function of the anti-collision beam during a high-speed collision. It includes a power source and an actuator locking rod. The actuator locking rod can be inserted into the movable anti-collision beam under the control of the power source. The power source can be a motor, which receives the speed or acceleration signal of the whole vehicle. It can also be a natural power source, which realizes the locking of the movable part of the anti-collision beam under the action of wind resistance. There is a windward mechanism, and the size of the windward mechanism depends on the vehicle speed and the execution efficiency of the two mechanisms. Through calibration, the locking rod is inserted into or withdrawn from the movable anti-collision beam at a specific speed;

[0046] The fixed anti-collision beam of the present invention is a regular trapezoid, and the movable anti-collision beam is an inverted trapezoid that cooperates with the fixed anti-collision beam. It can also be that the fixed anti-collision beam is an inverted trapezoid and the movable anti-collision beam is a regular trapezoid that cooperates with the fixed anti-collision beam. It can also be that both are rectangles. A number of support ribs are provided at the central positions of the cross-sections of the fixed anti-collision beam and the movable anti-collision beam. The support ribs can preferably be arranged horizontally, vertically, or crosswise, etc.

[0047] The present invention explores and innovates in terms of the requirements for the vehicle body structure, and at the same time meets the needs of styling, high-speed collision, and low-speed collision performance.

[0048] If the same design concept is adopted, but only the dimensions and appearance of the auxiliary installation structure or the fixing method used are different, it is also within the protection scope of the present invention.

[0049] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0050] In the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0052] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A telescopic front bumper beam assembly, comprising a bumper beam, electronic components and an energy absorption mechanism, wherein both ends of the energy absorption mechanism are connected to the vehicle frame and the bumper beam, and it is characterized in that: The anti-collision beam described above includes a fixed anti-collision beam and a movable anti-collision beam. The fixed anti-collision beam is connected to the movable anti-collision beam through a resilient device. The rear side surface of the movable anti-collision beam is parallel to and in surface-to-surface contact with the front side surface of the fixed anti-collision beam. The angle between the rear side surface of the movable anti-collision beam and the horizontal plane is an acute angle, a right angle, or an obtuse angle. The electronic components are located directly above or obliquely above the movable anti-collision beam; The resilient device described above includes a restraint arm and a resilient structure. The restraint arm is an extended structure at the top end of the fixed anti-collision beam. The resilient structure is installed between the restraint arm and the movable anti-collision beam and is connected to the restraint arm and the movable anti-collision beam; The resilient structure is a restraint spring. The two ends of the restraint spring are connected to the restraint arm and the movable anti-collision beam; The bumper crossbeam assembly further includes a locking structure. The locking structure is installed inside the fixed anti-collision beam and is used to lock the fixed anti-collision beam and the movable anti-collision beam; The locking structure includes a locking rod and a power source. One end of the locking rod is connected to the power source. The power source is installed inside the fixed anti-collision beam. The other end of the locking rod sequentially passes through the locking holes on the fixed anti-collision beam and the movable anti-collision beam; The power source is a mechanical power source; The mechanical power source includes a windward mechanism. The windward mechanism is connected to the locking rod through a hinge.

2. The retractable front bumper crossbeam assembly according to claim 1, wherein: The Y-direction cross-sections of the fixed anti-collision beam and the movable anti-collision beam are both trapezoidal. The Y-direction cross-section of the fixed anti-collision beam is a regular trapezoid and the Y-direction cross-section of the movable anti-collision beam is an inverted trapezoid; The Y-direction cross-sections of the fixed anti-collision beam and the movable anti-collision beam are both trapezoidal. The Y-direction cross-section of the movable anti-collision beam is a regular trapezoid and the Y-direction cross-section of the fixed anti-collision beam is an inverted trapezoid.

3. The retractable front bumper cross member assembly according to claim 1, characterized in that: The movable anti-collision beam is one or more. When it is one, it is the same length as the fixed anti-collision beam.

4. A vehicle, characterized in that: The vehicle includes the retractable front bumper crossbeam assembly according to any one of claims 1 to 3.

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