Cabin front frame structure and automobile

Abstract

The utility model relates to an engine room front frame structure and an automobile. The engine room front frame structure comprises three sets of force transmission assemblies distributed at intervals in the Z-axis direction, an A column assembly and a vehicle body, the three sets of force transmission assemblies are a shotgun force transmission assembly, a front longitudinal beam force transmission assembly and a front auxiliary frame force transmission assembly in sequence from top to bottom, and energy absorption boxes are arranged at the front ends, in the X-axis direction, of all the sets of force transmission assemblies. The rear ends in the X-axis direction are fixed to the A-column assembly to form three force transmission channels, the A-column assembly is arranged in the Z-axis direction, and the upper end and the lower end of the A-column assembly are fixed to a vehicle body; the shotgun force transmission assembly is fixedly connected with the A column assembly and matched with an original front longitudinal beam force transmission assembly and an original front auxiliary frame force transmission assembly to form three force transmission channels, collision energy which is not absorbed by the energy absorption box can be effectively decomposed, it is guaranteed that the collision energy can be transmitted to the rear portion of a vehicle body more smoothly, the number and weight of vehicle body parts are reduced on the whole, and the cost is reduced. Lightweight level of the vehicle body is improved and cost of the vehicle body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to vehicle frame structures, in particular to a cabin front vehicle frame structure and a vehicle. Background Art

[0002] When a conventional vehicle body experiences a head-on collision, the collision energy is mainly absorbed by the crushing of the anti-collision beam energy absorption box and the anti-collision beam auxiliary energy absorption box. The remaining collision energy is transmitted along the two force transmission paths of the front longitudinal beam and the front subframe to the A-pillar assembly, and then transmitted to the rear of the vehicle body through the upper and lower ends of the A-pillar assembly.

[0003] When the energy cannot be fully absorbed, the front panel will invade the cab and hit the battery, causing injury to the driver. It will also damage the functions of electrical components such as the battery. To solve this problem, the commonly used method is to increase the length of the anti-collision beam energy absorption box and the anti-collision beam auxiliary energy absorption box, or to increase the material thickness and cross-section of the parts on the force transmission path (front longitudinal beam, front subframe and A-pillar assembly, etc.) to meet the collision performance requirements. However, the above methods will inevitably increase the weight of the vehicle body and material costs. Utility Model Content

[0004] Based on this, it is necessary to provide a cabin front frame structure and automobile that will not significantly increase the weight and cost of the vehicle body in order to address the problems of heavy vehicle body weight and high cost in the current method of improving the collision performance of the vehicle body.

[0005] The present application first provides a cabin front frame structure, including three groups of force transmission components, an A-pillar assembly and a vehicle body spaced apart along the Z-axis direction. The three groups of force transmission components are, from top to bottom, a shotgun force transmission component, a front longitudinal beam force transmission component and a front subframe force transmission component. The front end of each group of force transmission components along the X-axis direction is provided with an energy absorption box, and the rear end along the X-axis direction is fixed to the A-pillar assembly to form three force transmission paths. The A-pillar assembly is arranged along the Z-axis direction and the upper and lower ends are respectively fixed to the vehicle body.

[0006] In one embodiment, the front frame structure of the cabin includes two A-pillar assemblies symmetrically arranged along the Y-axis direction, and each group of the force transmission components includes two force transmission beams symmetrically arranged along the Y-axis direction. The force transmission beams are divided into shotguns, front longitudinal beams and front subframes according to the force transmission components in which they are located. The front end of each force transmission beam along the X-axis direction is provided with an energy absorption box, and the rear end is fixed to the A-pillar assembly on the corresponding side.

[0007] In one embodiment, each shotgun forms two bifurcated sections on the rear side along the X-axis direction, wherein the lower bifurcated section is fixed to the A-pillar assembly, and the upper bifurcated section is fixed to the vehicle body.

[0008] In one embodiment, the front subframe is fixed to the bottom end of the A-pillar assembly, and the lower bifurcated section of the shotgun is fixed to the top end of the A-pillar assembly.

[0009] In one embodiment, an energy-absorbing box is fixed to the front end of each load-transfer beam. The energy-absorbing boxes are divided into shotgun energy-absorbing boxes, front longitudinal beam energy-absorbing boxes, and front subframe energy-absorbing boxes according to the fixed load-transfer components.

[0010] In one embodiment, the cross-sectional area of the front longitudinal beam energy-absorbing box along the YOZ plane and the length along the X-axis direction are both larger than those of the other energy-absorbing boxes.

[0011] In one embodiment, the cross-section of the front longitudinal beam energy-absorbing box along the YOZ plane is in a shape of a Chinese character 'tian' (田), and the cross-sections of the shotgun energy-absorbing box and the front subframe energy-absorbing box along the YOZ plane are in a shape of a Chinese character 'kou' (口).

[0012] In one embodiment, crush ribs are provided on the side surfaces of each energy-absorbing box, and the crush ribs on the same side surface are spaced apart along the X-axis direction.

[0013] In one embodiment, crush ribs are provided on the four edges of the shotgun energy-absorbing box and the front longitudinal beam energy-absorbing box, and crush ribs are provided on the two side surfaces of the front subframe energy-absorbing box along the Y-axis direction.

[0014] The second aspect of the present application provides an automobile, including the above-mentioned front engine compartment frame structure.

[0015] In the above-mentioned front engine compartment frame structure, energy-absorbing boxes are provided at the front ends of the three load-transfer channels to increase the collision energy that the energy-absorbing boxes can absorb and improve the collision performance of the whole vehicle. In addition, by connecting and fixing the shotgun load-transfer component to the A-pillar assembly, cooperating with the original front longitudinal beam load-transfer component and the front subframe load-transfer component to form three load-transfer channels, the collision energy that is not absorbed by the energy-absorbing boxes can be effectively decomposed, ensuring that the collision energy can be transmitted to the rear part of the vehicle more smoothly, better protecting the driver, protecting electrical components such as the battery, improving the collision performance of the whole vehicle, reducing the number and weight of body parts as a whole, improving the lightweight level of the body, and reducing the body cost. BRIEF DESCRIPTION OF THE DRAWINGS <8000034>

[0016] Figure 1 is a schematic diagram of the front engine compartment frame of the present application along the Y-axis direction;

[0017] Figure 2 is Figure 1 an enlarged view of the energy-absorbing box in

[0018] Figure 3 is Figure 2Schematic diagram after sectioning along the YOZ plane.

[0019] Figure numerals: 10, shotgun force transmission assembly; 11, shotgun; 12, shotgun energy absorption box; 20, front longitudinal beam force transmission assembly; 21, front longitudinal beam; 22, front longitudinal beam energy absorption box; 30, front subframe force transmission assembly; 31, front subframe; 32, front subframe energy absorption box; 40, A-pillar assembly. DETAILED DESCRIPTION

[0020] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0023] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0026] For ease of description, in this application, the length direction of the vehicle body is defined as the X-axis direction, the width direction of the vehicle body is defined as the Y-axis direction, and the height direction of the vehicle body is defined as the Z-axis direction. Among them, the side of the X-axis direction close to the front of the vehicle is defined as the front side, and the opposite side is defined as the rear side.

[0027] Please refer to Figure 1 As shown, the present application first provides a cabin front frame structure, including three groups of force transmission components spaced apart along the Z-axis direction, an A-pillar assembly 40 and a vehicle body. The three groups of force transmission components are, from top to bottom, a shotgun force transmission component 10, a front longitudinal beam force transmission component 20 and a front subframe force transmission component 30. The front end of each group of force transmission components along the X-axis direction is provided with an energy absorption box, and the rear end along the X-axis direction is fixed to the A-pillar assembly 40 to form three force transmission paths. The A-pillar assembly 40 is arranged along the Z-axis direction and the upper and lower ends are respectively fixed to the vehicle body.

[0028] In the present application, energy absorption boxes are provided at the front ends of the three force transmission channels to increase the collision energy that can be absorbed by the energy absorption boxes and improve the collision performance of the entire vehicle. In addition, by connecting and fixing the shotgun force transmission component 10 to the A-pillar assembly 40, and cooperating with the original front longitudinal beam force transmission component 20 and the front subframe force transmission component 30, three force transmission channels are formed, which can effectively decompose the collision energy not absorbed by the energy absorption box, ensure that the collision energy can be transmitted more smoothly to the rear of the vehicle body, better protect the driver, protect the battery and other electrical components, improve the collision performance of the entire vehicle, reduce the number and weight of body parts as a whole, improve the lightweight level of the body, and reduce the body cost.

[0029] Specifically, when the collision energy absorbed by the energy absorption box reaches a certain level, the energy absorption box at the front end of the three force transmission channels will completely collapse, and the remaining collision energy will be smoothly transmitted to the A-pillar assembly 40 along the shotgun force transmission component 10, the front longitudinal beam force transmission component 20 and the front subframe force transmission component 30 force transmission path, and then transmitted to the rear of the vehicle body along the upper and lower ends of the A-pillar assembly 40.

[0030] More specifically, in some embodiments, the front frame structure of the cabin includes two A-pillar assemblies 40 symmetrically arranged along the Y-axis direction, and each group of force transmission components includes two force transmission beams symmetrically arranged along the Y-axis direction. The force transmission beams are divided into shotgun 11, front longitudinal beams 21 and front subframes 31 according to the force transmission components in which they are located. An energy absorption box is provided at the front end of each force transmission beam along the X-axis direction, and the rear end is fixed to the A-pillar assembly 40 on the corresponding side.

[0031] Please refer to Figure 1 As shown, in some embodiments, each shotgun 11 forms two forked sections on the rear side along the X-axis direction, wherein the lower forked section is fixed to the A-pillar assembly 40, and the upper forked section is fixed to the vehicle body; so that the rear section of the shotgun 11 can further decompose the collision force it withstands and transfer the collision force to the A-pillar assembly and the vehicle body along the two forked sections.

[0032] Please refer to Figure 1 As shown, in some embodiments, the front subframe 31 is fixed to the bottom end of the A-pillar assembly 40, and the lower forked section of the shotgun 11 is fixed to the top end of the A-pillar assembly 40; a triangle is formed between the two forked sections and the A-pillar assembly 40, which can effectively improve the structural strength of the location.

[0033] Please combine Figure 1 as well as Figure 2 As shown, in some embodiments, an energy absorption box is fixed to the front end of each force transmission beam. The energy absorption box is divided into a shotgun energy absorption box 12, a front longitudinal beam energy absorption box 22 and a front subframe energy absorption box 32 according to the force transmission component fixed thereto.

[0034] Specifically, the shotgun energy absorption box 12 is screwed together with the shotgun 11 by four bolts to form a first smooth force transmission path; the front longitudinal beam energy absorption box 22 is screwed together with the front longitudinal beam 21 by four bolts to form a second smooth force transmission path; the front subframe energy absorption box 32 is screwed together with the front subframe 31 by three bolts to form a third smooth force transmission path.

[0035] Of course, in some other embodiments, other commonly used fixing methods may also be used between each energy absorption box and the corresponding force transmission component, and this application does not make further limitations here.

[0036] Please refer to Figure 2 and Figure 3 As shown, in some embodiments, the cross-sectional area of the front longitudinal beam energy absorber 22 along the YOZ plane and its length along the X-axis direction are both greater than those of other energy absorbers.

[0037] Since the position where the front longitudinal beam energy absorber 22 is located is the main part subjected to impact in most cases, therefore, designing the length of the front longitudinal beam energy absorber 22 located in the middle position to be greater than that of other energy absorbers can use it as the main energy absorption component to further enhance the absorption effect of the collision energy.

[0038] Preferably, in some embodiments, the cross-section of the front longitudinal beam energy absorber 22 along the YOZ plane is in a "field" shape, and the cross-sections of the shotgun energy absorber 12 and the front subframe energy absorber 32 along the YOZ plane are in a "square" shape.

[0039] Of course, in some other embodiments, the lengths, thicknesses, cross-sections, etc. of each energy absorber can also adopt other designs, as long as the collision energy can be stably transmitted to the rear part of the vehicle body when a collision occurs. Examples are not given one by one in this application.

[0040] Please refer to Figure 1 and Figure 2 As shown, in some embodiments, crush ribs are provided on the side surfaces of each energy absorber, and the crush ribs on the same side surface are spaced along the X-axis direction; when a relatively large collision occurs, each energy absorber first induces crushing at the position where the crush ribs are located, and then the entire energy absorber is completely crushed to absorb most of the collision energy, thereby minimizing the collision energy transmitted to each force transmission component as much as possible.

[0041] Specifically, in some embodiments, crush ribs are provided on the four edges of the shotgun energy absorber 12 and the front longitudinal beam energy absorber 22, and crush ribs are provided on the two side surfaces of the front subframe energy absorber 32 along the Y-axis direction.

[0042] The second aspect of this application provides an automobile, including the front engine compartment frame structure described above.

[0043] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity in description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0044] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A cabin front frame structure, characterized in that: It includes three groups of force transmission components distributed at intervals along the Z-axis direction, an A-pillar assembly (40), and a vehicle body. The three groups of force transmission components are, from top to bottom, a shotgun force transmission component (10), a front longitudinal beam force transmission component (20), and a front subframe force transmission component (30). An energy absorption box is provided at the front end of each group of force transmission components along the X-axis direction, and the rear end of each group along the X-axis direction is fixed to the A-pillar assembly (40) to form three force transmission paths. The A-pillar assembly (40) is arranged along the Z-axis direction and is fixed to the vehicle body at its upper and lower ends respectively.

2. The cabin front frame structure according to claim 1, characterized in that: The front engine compartment frame structure includes two A-pillar assemblies (40) symmetrically arranged along the Y-axis direction. Each group of force transmission components includes two force transmission beams symmetrically arranged along the Y-axis direction. The force transmission beams are divided into shotguns (11), front longitudinal beams (21), and front subframes (31) according to the force transmission components they belong to. An energy absorption box is provided at the front end of each force transmission beam along the X-axis direction, and the rear end of each force transmission beam is fixed to the A-pillar assembly (40) on the corresponding side.

3. The cabin front frame structure according to claim 2, characterized in that: Each shotgun (11) forms two bifurcated segments at the rear side along the X-axis direction. Among them, the lower bifurcated segment is fixed to the A-pillar assembly (40), and the upper bifurcated segment is fixed to the vehicle body.

4. The cabin front frame structure according to claim 3, characterized in that: The front subframe (31) is fixed to the bottom end of the A-pillar assembly (40), and the lower bifurcated segment of the shotgun (11) is fixed to the top end of the A-pillar assembly (40).

5. The cabin front frame structure according to claim 2, characterized in that: An energy absorption box is fixed to the front end of each force transmission beam. The energy absorption boxes are divided into shotgun energy absorption boxes (12), front longitudinal beam energy absorption boxes (22), and front subframe energy absorption boxes (32) according to the force transmission components they are fixed to.

6. The cabin front frame structure according to claim 5, characterized in that: The cross-sectional area of the front longitudinal beam energy absorption box (22) along the YOZ plane and its length along the X-axis direction are both larger than those of the other energy absorption boxes.

7. The cabin front frame structure according to claim 6, characterized in that: The cross-section of the front longitudinal beam energy absorption box (22) along the YOZ plane is in the shape of a Chinese character 'Tian' (square inside a square), and the cross-sections of the shotgun energy absorption box (12) and the front subframe energy absorption box (32) along the YOZ plane are in the shape of a Chinese character 'Kou' (square).

8. The cabin front frame structure according to claim 6, characterized in that: Crash ribs are provided on the side surfaces of each energy absorption box, and the crash ribs on the same side surface are distributed at intervals along the X-axis direction.

9. The cabin front frame structure according to claim 8, characterized in that: Crash ribs are provided on the four edges of the shotgun energy absorption box (12) and the front longitudinal beam energy absorption box (22), and crash ribs are provided on the two side surfaces of the front subframe energy absorption box (32) along the Y-axis direction.

10. An automobile, characterized in that: It includes the front engine compartment frame structure according to any one of claims 1 to 9.

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