Automobile front frame and automobile
By using U-shaped aluminum beams and split vertical beam designs in the front skeleton of the automobile, the problems of heavy quality and complex assembly in the existing technology are solved, and power improvement and maintenance costs are achieved, while improving corrosion resistance and reduction Noise effect.
Patent Information
- Application Number
- CN201910611694.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-07-08
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2039-07-08
AI Technical Summary
The existing front skeleton of the automobile is insufficient power and difficult to assemble due to the use of heavy-weight steel sheet metal parts and complex connecting structures. The overall replacement of vertical beams after collision leads to increased maintenance time and cost.
The U-shaped aluminum beam with light weight and simple structure is used to replace the upper left vertical beam, upper right vertical beam and upper cross beam. The vertical beam design with a split structure is adopted. It is replaced only when the lower beam body is damaged, simplifying the assembly process and reducing maintenance costs.
Effectively reduce the quality of the front skeleton of the car, improve power performance, simplify the assembly process, reduce maintenance costs, and improve corrosion resistance and noise reduction effects.
Smart Images
Figure CN110282025B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of automobiles, and in particular relates to an automobile front frame and an automobile comprising the automobile front frame. Background Art
[0002] The front frame of the car is mainly used to carry the car's power system, cooling system, lighting system, air conditioning system and shell, etc. The front frame of the car includes a left front longitudinal beam, a right front longitudinal beam parallel and spaced apart from the left front longitudinal beam, a left vertical beam connected to the front end of the left front longitudinal beam, a right vertical beam connected to the front end of the right front longitudinal beam, a lower cross beam connected to the lower end of the left vertical beam and the lower end of the right vertical beam, and an upper cross beam connected to the upper end of the left vertical beam and the upper end of the right vertical beam, as well as a left upper longitudinal beam connected to the left end of the upper cross beam and located above the left front longitudinal beam, and a right upper longitudinal beam connected to the right end of the upper cross beam and located above the right front longitudinal beam.
[0003] However, since the upper left longitudinal beam, the upper right longitudinal beam and the upper cross beam in the prior art are all heavy steel sheet metal parts and need to be connected together by welding or bolting, the front frame of the car has the following defects: first, the heavy weight is not conducive to improving the power of the car; second, there are too many connecting structures, which increases the difficulty of assembly.
[0004] In addition, during the implementation of the present invention, the inventors discovered that the previous left and right vertical beams were not optimized based on the historical data of automobile collisions, resulting in the vertical beam still adopting an integrated structure. However, when part of the vertical beam, especially its lower end, was damaged, it was necessary to replace the entire beam, resulting in increased repair time and repair costs for the vertical beam after damage. Summary of the invention
[0005] In order to solve all or part of the above-mentioned problems, the purpose of the present invention is to provide a front frame of an automobile and a automobile comprising the front frame of an automobile. The front frame of the automobile replaces the heavy, complex and structurally composed components of the upper left longitudinal beam, the upper right longitudinal beam and the upper cross beam with a light-weight, simple-structured U-shaped aluminum beam. This can not only reduce the weight of the front frame of the automobile and help the automobile improve its power, but also reduce the difficulty of assembling the front frame of the automobile and improve production efficiency.
[0006] According to a first aspect of the present invention, a front frame of an automobile is provided, which comprises: a left front longitudinal beam and a right front longitudinal beam, wherein the rear ends of the left front longitudinal beam and the rear ends of the right front longitudinal beam are both used to connect to a middle frame of the automobile; a left vertical beam and a right vertical beam, wherein the left vertical beam and the right vertical beam are respectively connected to the front ends of the left front longitudinal beam and the right front longitudinal beam; a lower cross beam, wherein both ends of the lower cross beam are respectively connected to the lower ends of the left vertical beam and the right vertical beam; and a U-shaped aluminum beam arranged above the left front longitudinal beam and the right front longitudinal beam, which is an aluminum alloy extrusion composed of two legs and an arc portion, wherein both of the legs are used to connect to the middle frame of the automobile, and the arc portion is connected to the upper ends of the left vertical beam and the right vertical beam.
[0007] Furthermore, the legs of the U-shaped aluminum beam are embedded in the middle frame of the vehicle and connected to the middle frame of the vehicle via fasteners.
[0008] Furthermore, the fastener is a bolt or a rivet.
[0009] Furthermore, the cross-section of the U-shaped aluminum beam is in the shape of a square, a sun or a mesh.
[0010] Furthermore, the front frame of the automobile also includes a lower cross beam, two ends of which are respectively connected to the lower end of the left vertical beam and the lower end of the right vertical beam, the left vertical beam and the right vertical beam both include an upper beam body and a lower beam body, the lower end of the upper beam body is detachably connected to the upper end of the lower beam body, the upper end of the upper beam body is connected to the U-shaped aluminum beam, the lower end of the lower beam body is connected to the lower cross beam, the left front longitudinal beam is connected to the middle part of the upper beam body of the left vertical beam, and the right front longitudinal beam is connected to the middle part of the upper beam body of the right vertical beam.
[0011] Furthermore, the detachable connection between the upper beam body and the lower beam body is a bolt connection.
[0012] Furthermore, reinforcing ribs and / or material-reducing holes are provided on the upper beam body and the lower beam body.
[0013] Furthermore, the lower cross beam is a plastic part, the upper beam body and the lower beam body are both aluminum alloy die-casting parts, and the left front longitudinal beam and the right front longitudinal beam are both aluminum alloy extrusion parts.
[0014] Furthermore, the front frame of the automobile also includes an anti-collision beam connected to the left vertical beam, the right vertical beam, the left front longitudinal beam and the right front longitudinal beam.
[0015] According to a second aspect of the present invention, there is provided an automobile, comprising the automobile front frame according to the first aspect of the present invention.
[0016] According to the first and second aspects of the present invention, the front frame of the automobile involved is equivalent to canceling the upper left longitudinal beam (steel sheet metal), the upper right longitudinal beam (steel sheet metal) and the upper cross beam (steel sheet metal) in the prior art, and using a light-weight and simple-structured U-shaped aluminum beam to replace the components composed of the upper left longitudinal beam, the upper right longitudinal beam and the upper cross beam, thereby not only effectively reducing the overall weight of the front frame of the automobile and helping the automobile to improve power, but also reducing the difficulty of assembling the front frame of the automobile and improving the production efficiency of the front frame of the automobile. In addition, the corrosion resistance, crash resistance and noise reduction effect of the U-shaped aluminum beam are also better than those of the aforementioned components, so it is more suitable for use in automobiles, especially electric vehicles.
[0017] In addition, according to the analysis of historical automobile collision data, accidents in which automobiles collide with objects below the anti-collision beam (such as shoulders raised relative to the road surface) account for a relatively high proportion, making the parts of the left and right vertical beams below the front longitudinal beam (usually roughly flush with the anti-collision beam) more easily damaged than the remaining parts. Therefore, the left and right vertical beams used in the front frame of the automobile are selected to be a split structure mainly composed of an upper beam body and a lower beam body. When the lower beam body below the front longitudinal beam is damaged, only the lower beam body needs to be replaced, and there is no need to replace the upper beam body used to connect heavy-load components such as the anti-collision beam and the front longitudinal beam. This can effectively reduce the repair time and repair costs of the left and right vertical beams after damage.
[0018] In addition, the front frame of the automobile has a simple structure, is easy to manufacture, is safe and reliable to use, and is easy to implement, promote and apply. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.
[0020] Figure 1 A schematic diagram of the installation of the front frame of an automobile according to an embodiment of the present invention;
[0021] Figure 2 The U-shaped aluminum beam of the front frame of the vehicle according to an embodiment of the present invention is shown;
[0022] Figure 3 The left vertical beam of the front frame of the vehicle according to the embodiment of the present invention is shown. DETAILED DESCRIPTION
[0023] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.
[0024] Figure 1 FIG. 1 is a schematic diagram of the installation of the front frame of a car according to an embodiment of the present invention. Figure 1 As shown, the front frame 100 of the automobile is the front structure of the automobile body, and the automobile body also includes a middle frame 200 (only part of it is shown) and a rear frame (not shown), wherein the middle frame 200 of the automobile is roughly a frame structure located between the front axle and the rear axle in the automobile body. The front frame 100 of the automobile includes a left front longitudinal beam 2 and a right front longitudinal beam 3. The rear ends of the left front longitudinal beam 2 and the right front longitudinal beam 3 are both used to connect the middle frame 200 of the automobile, so that they extend toward the front of the middle frame 200 of the automobile together. The left front longitudinal beam 2 and the right front longitudinal beam 3 are usually used to carry the front axle, the power system, the air conditioning system, etc.
[0025] The front frame 100 of the automobile further includes a left vertical beam 11, a right vertical beam 12 and a lower cross beam 13. The left vertical beam 11 and the right vertical beam 12 are respectively connected to the front end of the left front longitudinal beam 2 and the front end of the right front longitudinal beam 3, while the left end and the right end of the lower cross beam 13 are respectively connected to the lower end of the left vertical beam 11 and the lower end of the right vertical beam 12. The left vertical beam 11 and the right vertical beam 12 can carry the left and right headlights.
[0026] like Figure 1 and Figure 2 As shown, the front frame 100 of the automobile further includes a U-shaped aluminum beam 5 disposed above the left front longitudinal beam 2 and the right front longitudinal beam 3. The U-shaped aluminum beam 5 is an aluminum alloy extrusion composed of two legs 51 and an arc portion 52, wherein the two legs 51 are used to connect the middle frame 200 of the automobile, and the arc portion 52 is connected to the upper end of the left vertical beam 11 and the upper end of the right vertical beam 12. The arc portion 52 of the U-shaped aluminum beam 5 can carry the hood and the hood support rod, and can also carry the radiator together with the left vertical beam 11, the right vertical beam 12 and the lower cross beam 13.
[0027] According to an embodiment of the present invention, the front frame 100 of the automobile is equivalent to canceling the upper left longitudinal beam (steel sheet metal), the upper right longitudinal beam (steel sheet metal) and the upper cross beam (steel sheet metal) in the prior art, and replacing the heavy, complex and component composed of the upper left longitudinal beam, the upper right longitudinal beam and the upper cross beam with the light and simple U-shaped aluminum beam 5, thereby not only effectively reducing the overall weight of the front frame 100 of the automobile, helping the automobile to improve power, but also reducing the assembly difficulty of the front frame 100 of the automobile, and improving the production efficiency of the front frame 100 of the automobile. In addition, the corrosion resistance, crash resistance and noise reduction effect of the U-shaped aluminum beam 5 are better than those of the aforementioned components, so it is more suitable for use in automobiles, especially electric vehicles. In addition, the U-shaped aluminum beam 5 and the middle frame 200 of the automobile can form a ring structure together, which helps to improve the deformation resistance and noise reduction effect of the U-shaped aluminum beam 5.
[0028] In this embodiment, the leg 51 of the U-shaped aluminum beam 5 is embedded in the middle frame 200 of the automobile and connected to the middle frame 200 of the automobile through fasteners, thereby improving the torsional rigidity and bending rigidity of the U-shaped aluminum beam 5. The fasteners are selected from bolts, rivets, etc., but bolts are preferably used so that maintenance personnel can replace damaged U-shaped aluminum beams 5. In addition, the leg 51 of the U-shaped aluminum beam 5 can also be connected to the middle frame 200 of the automobile by other means, such as welding.
[0029] The cross section of the U-shaped aluminum beam 5 (the cross section perpendicular to the extension direction of the U-shaped aluminum beam 5) is in the shape of a square, a sun or a mesh, which can facilitate the extruder to process the U-shaped aluminum beam 5 and ensure that it has better mechanical properties, such as higher bending, tensile and compressive strength.
[0030] The left vertical beam 11 and the right vertical beam 12 can be selected as an integrated structure or a split structure. Figure 1 and Figure 3 In the preferred embodiment shown, the left vertical beam 11 and the right vertical beam 12 are both selected as split structures, and include an upper beam body 11a and a lower beam body 11b. The lower end of the upper beam body 11a is detachably connected to the upper end of the lower beam body 11b, and the detachable connection is preferably a bolt connection. The upper end of the upper beam body 11a of the left vertical beam 11 is connected to the arc portion 52 of the U-shaped aluminum beam 5; the upper end of the upper beam body 11a of the right vertical beam 12 is also connected to the arc portion 52 of the U-shaped aluminum beam 5. The lower end of the lower beam body 11b of the left vertical beam 11 is connected to the left end of the lower cross beam 13, and the lower end of the lower beam body 11b of the right vertical beam 12 is connected to the right end of the lower cross beam 13. The left front longitudinal beam 5 is connected to the middle part of the upper beam body 11a of the left vertical beam 11 (located between the upper end and the lower end of the beam body), and the right front longitudinal beam 3 is connected to the middle part of the upper beam body 11a of the right vertical beam 12 (located between the upper end and the lower end of the beam body). According to the analysis of historical data of automobile collisions, the number of accidents in which automobiles collide with objects (such as curbs) below the anti-collision beam accounts for a relatively large proportion, making the parts of the left vertical beam 11 and the right vertical beam 12 below the corresponding front longitudinal beam more easily damaged than the rest of the parts. Therefore, in this embodiment, the left vertical beam 11 and the right vertical beam 12 are both constructed as a split structure mainly composed of an upper beam body 11a and a lower beam body 11b. When the lower beam body 11b below the front longitudinal beam is damaged, there is no need to replace the upper beam body 11a used to connect the anti-collision beam, the corresponding front longitudinal beam and other heavy-duty parts, thereby effectively reducing the maintenance time and maintenance costs of the left vertical beam 11 and the right vertical beam 12.
[0031] In one embodiment, the minimum cross-sectional area of the upper beam 11a perpendicular to the vertical direction is larger than the minimum cross-sectional area of the lower beam 11b perpendicular to the vertical direction, so that the bending strength of the lower beam 11b in the front-to-rear direction is not as good as the bending strength of the upper beam 11a in the front-to-rear direction, so that when the car collides with the shoulder, the lower beam 11b is more easily deformed and damaged than the upper beam 11a, thereby protecting the structure and construction of the lower beam 11b.
[0032] In this embodiment, the upper beam 11a and the lower beam 11b are provided with reinforcing ribs 11c and / or material-reducing holes 11d, wherein the reinforcing ribs 11c are used to enhance the structural strength of the beam where they are located, and the material-reducing holes 11d are used to reduce the material used in the beam where they are located.
[0033] In order to further reduce the weight of the front frame 100 of the automobile and ensure that it has ideal mechanical properties, the lower cross beam 13 is a plastic part, the upper beam body 11a and the lower beam body 11b are both aluminum alloy die-castings, and the left front longitudinal beam 2 and the right front longitudinal beam 3 are both aluminum alloy extrusions.
[0034] In this embodiment, the front frame 100 of the automobile further includes an anti-collision beam (not shown) connected to the left vertical beam 11, the right vertical beam 12, the left front longitudinal beam 2 and the right front longitudinal beam 3. Specifically, the anti-collision beam has an anti-collision cross beam and two energy absorption boxes, the left end of the anti-collision cross beam connects the left vertical beam 11 and the left front longitudinal beam 2 through the energy absorption box on the left, and the right end of the anti-collision cross beam connects the right vertical beam 12 and the right front longitudinal beam 3 through the energy absorption box on the right. The anti-collision beam can absorb collision energy when the automobile collides, reducing the damage caused by the collision to people and the automobile.
[0035] In an embodiment not shown, a vehicle is provided. The vehicle comprises the vehicle front frame 100 described in any one of the above embodiments.
[0036] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "rear", "left", "right", etc., indicating orientations or positional relationships, are 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 on the present invention.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
Claims
1. A front frame of an automobile, characterized in that: include: A left front longitudinal beam and a right front longitudinal beam, wherein the rear ends of the left front longitudinal beam and the rear ends of the right front longitudinal beam are both used to connect to the middle frame of the automobile; A left vertical beam and a right vertical beam, wherein the left vertical beam and the right vertical beam are respectively connected to the front end of the left front longitudinal beam and the front end of the right front longitudinal beam; A U-shaped aluminum beam disposed above the left front longitudinal beam and the right front longitudinal beam, which is an aluminum alloy extrusion composed of two legs and an arc portion, wherein the two legs are used to connect the middle frame of the car, and the arc portion is connected to the upper end of the left vertical beam and the upper end of the right vertical beam; A lower cross beam, two ends of which are respectively connected to the lower end of the left vertical beam and the lower end of the right vertical beam, the left vertical beam and the right vertical beam each comprising an upper beam body and a lower beam body, the lower end of the upper beam body being detachably connected to the upper end of the lower beam body, the upper end of the upper beam body being connected to the U-shaped aluminum beam, the lower end of the lower beam body being connected to the lower cross beam, the left front longitudinal beam being connected to the middle portion of the upper beam body of the left vertical beam, and the right front longitudinal beam being connected to the middle portion of the upper beam body of the right vertical beam; The detachable connection between the upper beam body and the lower beam body is a bolt connection; The upper beam body and the lower beam body are both provided with reinforcing ribs and / or material-reducing holes; The lower cross beam is a plastic part, the upper beam body and the lower beam body are both aluminum alloy die-casting parts, and the left front longitudinal beam and the right front longitudinal beam are both aluminum alloy extrusion parts; The minimum cross-sectional area of the upper beam body perpendicular to the vertical direction is greater than the minimum cross-sectional area of the lower beam body perpendicular to the vertical direction.
2. The front frame of the automobile according to claim 1, characterized in that: The legs of the U-shaped aluminum beam are embedded in the middle frame of the vehicle and connected to the middle frame of the vehicle through fasteners.
3. The front frame of the automobile according to claim 2, characterized in that: The fasteners are bolts or rivets.
4. The front frame of the automobile according to claim 1, wherein the cross section of the U-shaped aluminum beam is in the shape of a square, a square or a square.
5. The front frame of an automobile according to any one of claims 1 to 4, characterized in that: It also includes an anti-collision beam connected to the left vertical beam, the right vertical beam, the left front longitudinal beam and the right front longitudinal beam.
6. A car, characterized in that: The invention comprises a front frame of an automobile according to any one of claims 1 to 5.