Automobile body front longitudinal beam and automobile
Through the integrated design of the front longitudinal beam of the body, combined with the soft zone plate, the hard zone plate and the reinforcement plate, the problem of the traditional front longitudinal beam being prone to deform and damage during impact is solved, the body stability and production efficiency are improved, and the production cost is reduced.
Patent Information
- Application Number
- CN202420141979.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-19
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-01-19
AI Technical Summary
The traditional front longitudinal beam of the car body is prone to deformation and damage when the body is hit, which affects the safety of the people in the car, and the production process is complex and occupies a lot of production sites, which affects the production efficiency of the car and reduces costs and increases efficiency.
The front longitudinal beam of the body adopts an integrated design, including soft and hard zone plates connected through welding, combined with reinforcement plates, reduces the welding links of bulk parts, shortens the production line, and reduces production costs.
It improves the stability of the car body, avoids deformation and damage of the front longitudinal beam when the car body hits, ensures the safety of personnel in the car, reduces production costs, and improves production efficiency.
Smart Images
Figure CN222629421U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile components, in particular to a front longitudinal beam of a vehicle body and an automobile having the front longitudinal beam of the vehicle body. Background Art
[0002] Nowadays, cars are used by more and more people as a means of transportation in people's work and life. The front longitudinal beam of the car body is an important component of the car. In actual use, it is used to maintain the overall stability of the car body. The traditional front longitudinal beam of the car body composed of multiple parts is prone to deformation and damage when the car body is hit, affecting the safety of people in the car.
[0003] Traditional front longitudinal beams are usually welded from multiple stamped parts, with a large number of parts and welding points / welds; if a reinforcement structure is added to it, the complexity will increase further. Obviously, the production process of the front longitudinal beams in the existing technology is complicated, with many production links, a large number of molds and fixtures, and a large amount of production space. This will affect the production efficiency of the car and is contrary to the current cost reduction and efficiency improvement of automobile manufacturers. Summary of the invention
[0004] The utility model provides a front longitudinal beam of a vehicle body, whose components adopt an integrated design, which can reduce more welding links of scattered parts, shorten the production line, reduce work stations, tooling investment, reduce production costs, improve production efficiency, and can meet the requirements of both front energy absorption and collapse and rear support without deformation; at the same time, in actual use, it can maintain the overall strength, improve the stability of the vehicle body, avoid deformation and damage of the front longitudinal beam of the vehicle body when the vehicle body is hit, and ensure the safety of people in the vehicle.
[0005] On one hand, the utility model provides a front longitudinal beam of a vehicle body, comprising: a front longitudinal beam body and a reinforcement plate, the front longitudinal beam body comprising a soft area plate and a hard area plate connected to each other by welding, the hardness of the soft area plate is less than the hardness of the hard area plate, soft area connecting plates are respectively arranged on both sides of the soft area plate, hard area connecting plates are respectively arranged on both sides of the hard area plate, the hard area connecting plates are correspondingly connected to the soft area connecting plates; the reinforcement plate is fixed to the hard area plate.
[0006] In one embodiment, the hard area board has a first hard board segment and a second hard board segment, the first hard board segment is connected to the soft area board, the length direction of the second hard board segment is oblique to the length direction of the first hard board segment, and the second hard board segment and the first hard board segment have an arc-shaped transition connection.
[0007] In one embodiment, the second hard plate segment has a protrusion, and the protrusion direction of the protrusion is consistent with the inclination direction of the second hard plate segment relative to the first hard plate segment.
[0008] In one embodiment, the reinforcing plate includes a first reinforcing plate having a first reinforcing region connected to the first hard plate segment and a second reinforcing region connected to the second hard plate segment.
[0009] In one embodiment, the first reinforcing plate is disposed at a portion of the hard area plate located between the protruding portion and the hard area connecting plate.
[0010] In one embodiment, the reinforcing plate further comprises a second reinforcing plate, the second reinforcing plate is connected to the first reinforcing plate by an arc transition, and the second reinforcing plate is connected to the hard area connecting plate. In one embodiment, the thickness of the soft area plate and the soft area connecting plate ranges from 1.0 to 1.6 mm.
[0011] In one embodiment, the thickness of the material of the hard area plate and the hard area connecting plate is in the range of 1.2-1.8 mm.
[0012] In one embodiment, the thickness of the reinforcement plate is in the range of 0.8-2.0 mm.
[0013] Another aspect of the utility model provides a car, comprising the above-mentioned front longitudinal beam of the car body.
[0014] In the front longitudinal beam of the vehicle body provided in the present application, the components adopt an integrated design, which can reduce more welding links of separate parts, shorten the production line, reduce workstations, tooling investment, reduce production costs, and improve production efficiency. The coordination of the soft area and the hard area on the front longitudinal beam of the present application can meet the requirements of both front energy absorption and non-deformation of the rear support.
[0015] The front longitudinal beam of the vehicle body provided in the present application has strong integrity, can maintain overall strength in actual use, improve the stability of the vehicle body, avoid deformation and damage of the front longitudinal beam of the vehicle body when the vehicle body is hit, and ensure the safety of people in the vehicle.
[0016] In particular, the raised portion of the front longitudinal beam of the vehicle body enables the second hard plate section to form a wave-like structure with staggered raised and recessed parts, thereby increasing the anti-collision performance of the front longitudinal beam, and the arc-shaped connection structure can effectively absorb energy and ensure the stability of the front longitudinal beam. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1A three-dimensional schematic diagram of a front longitudinal beam of a vehicle body provided in accordance with an embodiment of the present application;
[0019] Figure 2 for Figure 1 A three-dimensional schematic diagram of a front longitudinal beam body of a vehicle body;
[0020] Figure 3 for Figure 1 A three-dimensional schematic diagram of a reinforcement plate of a front longitudinal beam of a vehicle body;
[0021] Figure 4 A flow chart of a method for manufacturing a front longitudinal beam of a vehicle body provided by the present application;
[0022] Figure 5 The present invention is a flow chart of another method for manufacturing the front longitudinal beam of the vehicle body provided by the present application.
[0023] In the figure: 1. front longitudinal beam body; 11. soft area plate; 111. soft area connecting plate; 12. hard area plate; 121. hard area connecting plate; 122. first hard plate section; 123. second hard plate section; 124. raised portion; 13. front longitudinal beam weld; 2. reinforcement plate; 21. first reinforcement plate; 22. second reinforcement plate; 221. first reinforcement area; 222. second reinforcement area. DETAILED DESCRIPTION
[0024] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0026] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.
[0027] The terms "first", "second", "third", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.
[0028] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.
[0029] See also Figure 1 As shown, a preferred embodiment of the present application provides a front longitudinal beam of a vehicle body, comprising: a front longitudinal beam body 1 and a reinforcement plate 2, the front longitudinal beam body 1 comprises a soft area plate 11 and a hard area plate 12 connected to each other by welding, the hardness of the soft area plate 11 is less than the hardness of the hard area plate 12, soft area connecting plates 111 are respectively arranged on both sides of the soft area plate 111, and hard area connecting plates 121 are respectively arranged on both sides of the hard area plate 12, and the hard area connecting plates 121 are correspondingly connected to the soft area connecting plates 111; the reinforcement plate 2 is fixed on the hard area plate 12. The components of the front longitudinal beam of the present application adopt an integrated design, which can reduce more welding links of scattered parts, shorten the production line, reduce workstations, tooling investment, reduce production costs, and improve production efficiency. The coordination of the soft area and the hard area on the front longitudinal beam of the present application can meet the requirements of both front energy absorption and collapse and rear support without deformation.
[0030] Please also read Figure 2 As shown, the hard area board 12 has a first hard board segment 122 and a second hard board segment 123, the first hard board segment 122 is connected to the soft area board 11, the length direction of the second hard board segment 123 is oblique to the length direction of the first hard board segment 122, and there is an arc transition connection between the second hard board segment 123 and the first hard board segment 122. The above provides a specific structural example of the hard area board 12, and the arc transition connection between the second hard board segment 123 and the first hard board segment 122 can ensure the connection strength between the first hard board segment 122 and the second hard board segment 123. It is worth mentioning that the inclination angle between the first hard board segment 122 and the second hard board segment 123 is set according to actual use and is not specifically limited here.
[0031] Please also see Figure 1 and Figure 2 As shown, the second hard plate segment 123 has a protrusion 124, and the protrusion direction of the protrusion 124 is consistent with the inclination direction of the second hard plate segment 123 relative to the first hard plate segment 122. The protrusion 124 makes the second hard plate segment 123 form a wave-like structure with staggered protrusions and depressions, which increases the anti-collision performance of the front longitudinal beam, and the arc-shaped connection structure can effectively absorb energy. Ensure the stability of the front longitudinal beam. It should be noted that in other embodiments, the number of protrusions is two or three, and the present application does not limit the size and number of the protrusions.
[0032] Please also see Figure 3 As shown, the reinforcing plate 2 includes a first reinforcing plate 21 and a second reinforcing plate 22, and there is an arc transition connection between the first reinforcing plate 21 and the second reinforcing plate 22. The first reinforcing plate 21 has a first reinforcing area 211 connected to the first hard plate segment 122 and a second reinforcing area 212 connected to the second hard plate segment 123, and the second reinforcing plate 22 is connected to the hard area connecting plate 121. Specifically, the first reinforcing plate 21 is arranged at a portion of the hard area plate 12 located between the protruding portion 124 and the hard area connecting plate 121. In this embodiment, the first reinforcing plate and the second reinforcing plate are an integrated structure, the first reinforcing area 211 connected to the first hard plate segment 122 and the second reinforcing area 212 connected to the second hard plate segment 123 increase the hardness of the hard area plate 12, and improve the deformation resistance of the front longitudinal beam, and the second reinforcing plate 22 is connected to the hard area connecting plate 121, so that the hard area connecting plate 121 can disperse the force of the front longitudinal beam, and further improve the strength of the front longitudinal beam. It should be noted that in his embodiment, there are two reinforcing plates, which are respectively arranged on the hard area connecting plates 121 on both sides of the hard area plate 12. The present application does not limit the shape and number of the reinforcing plates, which can be arranged according to actual needs.
[0033] In this embodiment, the soft area plate 11 and the soft area connecting plate 111 are made of CR370 / 550HS-AS, and the thickness range is 1.0-1.6mm. The hard area plate 12 and the hard area connecting plate 121 are made of CR950 / 1300HS-AS, and the thickness range is 1.2-1.8mm. The reinforcing plate 2 is made of one of CR370 / 550HS-AS, CR780 / 980HS-AS, CR950 / 1300HS, CR950 / 1300HS-AS and CR950 / 1300HS-AS, and the thickness range is 0.8-2.0mm. The above examples are selected examples and do not represent all the examples of this application. When selecting and matching manufacturing materials, it is sufficient to meet the hardness of the soft area plate 11 and the soft area connecting plate 111 is less than that of the hard area plate 12 and the hard area connecting plate 121. It is worth mentioning that in other embodiments, the soft area board 11, the soft area connecting board 111, the hard area board 12 and the hard area connecting board are selected from coated boards or uncoated boards, among which the coated boards (coating thickness 75 / 75, 25 / 25) are: CR950 / 1300HS-AS, CR370 / 550HS-AS, CR780 / 980HS-AS, CR1200 / 1800HS-AS, and the uncoated boards are: CR950 / 1300HS, CR1200 / 1800HS.
[0034] In this embodiment, a front longitudinal beam weld 13 is formed between the soft area plate 11 and the hard area plate 12, and the front longitudinal beam weld 13 is a straight structure. The straight structure of the front longitudinal beam weld 13 in this embodiment reduces the switching of the equipment travel trajectory during the welding process, which can improve the welding production efficiency and reduce the cost. It should be noted that the position of the front longitudinal beam weld 13 in this application is not fixed, but is determined according to actual needs and is not limited here.
[0035] See also Figure 4 As shown, a method for manufacturing the front longitudinal beam of the vehicle body provided in the above embodiment comprises the following steps:
[0036] Step S100 : selecting a steel coil of required material, and stamping out a soft area plate 11 having a soft area connecting plate 111 , a hard area plate 12 having a hard area connecting plate 121 , and a reinforcing plate 2 .
[0037] Step S200: welding the soft area plate 11 and the hard area plate 12 together, and welding the reinforcing plate 2 to the hard area plate 12 to form a front longitudinal beam base plate.
[0038] Step S300: stamping and shearing the front longitudinal beam substrate into a single front longitudinal beam.
[0039] See also Figure 5 As shown, another method for manufacturing the front longitudinal beam of the vehicle body provided in the above embodiment comprises the following steps:
[0040] Step M100: Select the required steel coils, and stamp out the semi-finished front longitudinal beam and the reinforcing plate 2 , wherein the integrally formed semi-finished front longitudinal beam includes the soft area connecting plate 111 , the soft area plate 11 , the hard area connecting plate 121 and the hard area plate 12 .
[0041] Step M200: Weld the reinforcing plate 2 to the corresponding area on the hard area plate 12 of the semi-finished front longitudinal beam to form a front longitudinal beam base plate.
[0042] Step M300: stamping and shearing the front longitudinal beam substrate into a single front longitudinal beam.
[0043] Another preferred embodiment of the present application provides a car, including the front longitudinal beam of the vehicle body of the aforementioned embodiment. In this embodiment, the front longitudinal beam has a simple structure, high integration, reduces production links, streamlines production lines and workstations, and reduces production costs. At the same time, due to the raised portion 124, the second hard plate section 123 forms a wave-like structure of staggered arrangement of raised and depressed parts, which increases the anti-collision performance of the front longitudinal beam, and the arc-shaped connection structure can effectively absorb energy. Ensure the stability of the front longitudinal beam; and the first reinforcement area 211 connecting the first hard plate section 122 and the second reinforcement area 212 connecting the second hard plate section 123 increase the hardness of the hard area plate 12, improve the anti-deformation ability of the front longitudinal beam, and the second reinforcement plate 22 is connected to the hard area connecting plate 121, so that the hard area connecting plate 121 can disperse the force of the front longitudinal beam, further improve the strength of the front longitudinal beam; so that the anti-collision and anti-deformation ability of the car is enhanced, and the safety performance of the car is improved. In actual use, it can meet the requirements of both front energy absorption and collapse and rear support without deformation, and can effectively protect the safety of the front passengers.
[0044] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.
Claims
1. A front longitudinal beam of a vehicle body, characterized in that: include: A front longitudinal beam body (1) and a reinforcing plate (2), wherein the front longitudinal beam body (1) comprises a soft area plate (11) and a hard area plate (12) connected to each other by welding, the hardness of the soft area plate (11) being less than the hardness of the hard area plate (12), soft area connecting plates (111) being respectively arranged on both sides of the soft area plate (11), hard area connecting plates (121) being respectively arranged on both sides of the hard area plate (12), and the hard area connecting plates (121) being connected to the soft area connecting plates (111) in a corresponding manner; and the reinforcing plate (2) being fixed to the hard area plate (12).
2. The front longitudinal beam of the vehicle body according to claim 1, characterized in that: The hard area plate (12) comprises a first hard plate segment (122) and a second hard plate segment (123); the first hard plate segment (122) is connected to the soft area plate (11); the length direction of the second hard plate segment (123) is oblique to the length direction of the first hard plate segment (122); and an arc-shaped transition connection is formed between the second hard plate segment (123) and the first hard plate segment (122).
3. The front longitudinal beam of the vehicle body according to claim 2, characterized in that: The second hard plate segment (123) has a protruding portion (124), and the protruding direction of the protruding portion (124) is consistent with the inclination direction of the second hard plate segment (123) relative to the first hard plate segment (122).
4. The front longitudinal beam of the vehicle body according to claim 3, characterized in that: The reinforcing plate (2) comprises a first reinforcing plate (21), wherein the first reinforcing plate has a first reinforcing region (211) connected to the first hard plate segment (122) and a second reinforcing region (212) connected to the second hard plate segment (123).
5. The front longitudinal beam of the vehicle body according to claim 4, characterized in that: The first reinforcing plate (21) is arranged at a portion of the hard area plate (12) located between the raised portion (124) and the hard area connecting plate (121).
6. The front longitudinal beam of the vehicle body according to claim 4, characterized in that: The reinforcing plate (2) further comprises a second reinforcing plate (22), the second reinforcing plate (22) and the first reinforcing plate (21) having an arc-shaped transition connection, the second reinforcing plate (22) being connected to the hard zone connecting plate (121).
7. The front longitudinal beam of the vehicle body according to claim 1, characterized in that: The thickness of the soft area plate (11) and the soft area connecting plate (111) is in the range of 1.0-1.6 mm.
8. The front longitudinal beam of the vehicle body according to claim 1, characterized in that: The thickness of the material used to make the hard area plate (12) and the hard area connecting plate (121) is in the range of 1.2-1.8 mm.
9. The front longitudinal beam of the vehicle body according to claim 1, characterized in that: The thickness of the reinforcing plate (2) is in the range of 0.8-2.0 mm.
10. An automobile, characterized in that: The invention comprises a front longitudinal beam of a vehicle body as claimed in any one of claims 1 to 9.