Bumper framework and vehicle
By using lightweight materials and a frame-like structure to design the bumper frame, the problem of balancing lightweight design and strength performance in commercial vehicle bumpers has been solved, achieving a balance between lightweight design and mechanical performance, and improving the vehicle's range and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-27
AI Technical Summary
Existing commercial vehicle bumpers struggle to balance lightweight design and strength performance, leading to increased vehicle weight and impacting range and operating costs.
The frame-like bumper skeleton structure is made of lightweight materials, including hollow upper and lower skeletons, as well as left and right skeletons made of lightweight die-cast materials. The skeletons are connected by bolts to form an integral frame, and reinforced with ribs to improve structural strength.
This design achieves lightweighting of the bumper frame, reducing the overall vehicle weight, improving fuel economy and range, while maintaining good mechanical properties and structural stability.
Smart Images
Figure CN224045147U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of vehicle parts, more particularly, to a bumper framework and a vehicle. BACKGROUND
[0002] In the overall structure of a heavy truck, the bumper is a key assembly system and has great significance in the field of lightweight design of vehicles. In the weight composition of the cab assembly, the bumper accounts for about 7%; in the exterior system, the weight accounts for about 25%. The bumper framework accounts for about 50% of the weight of the bumper assembly, and has a great influence on the overall performance and weight of the bumper.
[0003] In the traditional design of commercial vehicles, the bumper framework is usually made of sheet metal stamping and steel pipe profiles, and the material is mostly steel. Although steel can ensure a certain structural strength and meet the basic mechanical needs of vehicles, its high density leads to a heavy bumper, which in turn increases the overall weight of the vehicle. For new energy commercial vehicles that pursue efficient transportation and reduce operating costs, the additional overall weight seriously weakens the endurance, increases the charging frequency, reduces the operating efficiency, and increases the operating cost due to increased energy consumption, greatly restricting the economic benefit advantage of new energy commercial vehicles and failing to meet the urgent needs of the logistics transportation industry for efficient and low-cost operation. Therefore, the existing bumper of commercial vehicles cannot balance lightweight design and strength performance, and needs to be improved. CONTENT OF THE UTILITY MODEL
[0004] Therefore, the present application provides a bumper framework and a vehicle to improve the problem that the existing bumper of commercial vehicles cannot balance lightweight design and strength performance.
[0005] In a first aspect, the present application provides a bumper framework, which comprises a left framework, a middle framework and a right framework arranged in sequence along the transverse direction of the vehicle.
[0006] The middle framework comprises a middle upper framework, a middle reinforcing framework and a middle lower framework fixedly connected in sequence from top to bottom, and the middle upper framework and the middle lower framework are both hollow lightweight material profile pieces arranged along the transverse direction of the vehicle.
[0007] The middle reinforcing framework, the left framework and the right framework are all lightweight material pressure casting structural pieces and are all in the form of frames.
[0008] Preferably, the middle reinforcing framework comprises two longitudinal side frames and at least two transverse side frames arranged in parallel with each other.
[0009] Each longitudinal side frame is connected to all transverse side frames at the same end in the extension direction and forms a frame structure with at least two openings.
[0010] Preferably, the left frame and the right frame are provided with a first connecting part and a second connecting part on one side close to the middle frame in the transverse direction of the vehicle.
[0011] The projection of the first connecting part overlaps the projection of the end of the upper middle frame, and the projection of the second connecting part overlaps the projection of the end of the lower middle frame in a vertical plane perpendicular to the horizontal plane and parallel to the transverse direction of the vehicle.
[0012] The first connecting part and the end of the upper middle frame are connected by fitting and bolting.
[0013] Preferably, the cross section of the lower middle frame is in the shape of a "sun".
[0014] Preferably, the cross section of the upper middle frame is in the shape of a "eye".
[0015] Preferably, the upper middle frame, the middle reinforcing frame and the lower middle frame are connected by bolting in sequence.
[0016] Preferably, the cross section of the transverse frame and the longitudinal frame is in the shape of a "work".
[0017] Preferably, the left frame, the right frame and the middle reinforcing frame are integrally formed structural members.
[0018] Preferably, the left frame and the right frame are provided with an outer frame structure and a reinforcing rib group arranged in the outer frame structure, the reinforcing rib group comprising a first reinforcing rib and a second reinforcing rib, the first reinforcing rib and the second reinforcing rib intersecting, and the ends of the first reinforcing rib and the second reinforcing rib being fixedly connected with the outer frame structure.
[0019] In a second aspect, the application provides a vehicle comprising the bumper frame provided in the first aspect of the application.
[0020] Compared with the prior art, the bumper frame and the vehicle provided in the application at least achieve the following beneficial effects:
[0021] In this embodiment, the bumper frame features several advantages. First, the left, middle, and right frames are all made of lightweight materials. Second, because the frame structure is a spatial structure composed of rods or beams, it avoids the use of large areas of material, thereby reducing the amount of material used in the reinforcing frames, left frame, and right frame. Furthermore, the upper and lower middle frames of the middle frame are hollow structures, further reducing the amount of beams used in these frames and further lowering the weight of the middle frame. This achieves the goal of lightweighting the bumper frame. Simultaneously, the frame structure possesses excellent mechanical properties, enabling more effective load transfer and distribution. Therefore, the bumper frame provided in this embodiment achieves lightweight design while meeting mechanical performance requirements, reducing the overall weight of the vehicle and improving fuel economy or driving range.
[0022] Of course, any product implementing this application need not specifically need to achieve all of the technical effects described above at the same time.
[0023] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description
[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.
[0025] Figure 1 The diagram shown is a schematic representation of the bumper frame provided in an embodiment of this application.
[0026] Figure 2 The diagram shown is an exploded view of the bumper frame provided in an embodiment of this application.
[0027] Figure 3 The diagram shown is a schematic representation of the reinforced skeleton in an embodiment of this application.
[0028] Figure 4 The diagram shown is a schematic representation of the right skeleton in an embodiment of this application.
[0029] Figure 5 As shown Figure 1 A cross-sectional schematic diagram of AA in the middle;
[0030] Figure 6 As shown Figure 1 Cross-sectional schematic diagram of BB;
[0031] Figure 7 As shown Figure 1 A cross-sectional view of CC.
[0032] Figure 8 As shown Figure 1 A cross-sectional view of DD.
[0033] Explanation of reference numerals:
[0034] 100-1 - left skeleton, 100-2 - right skeleton, 110 - outer frame structure, 120 - first reinforcing rib, 130 - second reinforcing rib, 101 - first connecting portion, 102 - second connecting portion, 200 - middle skeleton, 210 - upper middle skeleton, 220 - middle reinforcing skeleton, 221 - longitudinal frame, 222 - transverse frame, 230 - lower middle skeleton. DETAILED DESCRIPTION
[0035] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of the components and steps set forth in the examples, as well as the numerical expressions and values, are not limitations on the scope of the present application, unless otherwise specifically stated.
[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the application or its applications or uses.
[0037] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as if the techniques, methods, and apparatus were discussed in detail herein, where appropriate.
[0038] In all of the examples shown and discussed herein, any specific values should be interpreted as merely illustrative of the examples, and not as a limitation thereon. Thus, other examples of the exemplary embodiments can have different values.
[0039] Various modifications and changes can be made to the application as described herein without departing from the spirit and scope of the application. Accordingly, it is intended that all such modifications and changes be considered as within the scope of the application as set forth in the following claims (the technical solutions claimed for protection). It should be noted that the embodiments provided by the present application can be combined with each other as long as there is no conflict.
[0040] It should be noted that like numerals and letters refer to like items throughout the drawings, and as a result, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.
[0041] Figure 1 A structure diagram of a bumper skeleton provided by an embodiment of the present application is shown, Figure 2 A structure explosion diagram of a bumper skeleton provided by an embodiment of the present application is shown.
[0042] Reference should be made to Figure 1 and Figure 2The bumper framework provided in the embodiment of the present application comprises a left framework 100-1, a middle framework 200 and a right framework 100-2 arranged in sequence along the transverse direction of the vehicle; the middle framework 200 comprises a middle upper framework 210, a middle reinforcing framework 220 and a middle lower framework 230 fixedly connected in sequence from top to bottom, the middle upper framework 210 and the middle lower framework 230 are both lightweight material profile pieces arranged along the transverse direction of the vehicle and are hollow structures; the middle reinforcing framework 220, the left framework 100-1 and the right framework 100-2 are all lightweight material cast structure pieces and are all in the shape of a frame.
[0043] In specific implementation, the left framework 100-1, the middle framework 200 and the right framework 100-2 can all be manufactured by using a high-pressure die casting process. The middle upper framework 210 and the middle lower framework 230 can be selected to be aluminum alloy profile pieces, and the middle reinforcing framework 220, the left framework 100-1 and the right framework 100-2 are all aluminum alloy die casting structure pieces.
[0044] In addition, in actual application, as a part of the bumper assembly of the vehicle, the bumper framework is used to support the outer plate of the bumper, wherein when the middle grille or the outer plate of the two side headlamp regions is redesigned, the left framework 100-1, the middle upper framework 210, the middle lower framework 230 and the right framework 100-2 remain unchanged, and the middle reinforcing framework 220 is adaptively redesigned; when the two side headlamp regions are redesigned, the middle upper framework 210, the middle reinforcing framework 220 and the middle lower framework 230 remain unchanged, and the left framework 100-1 and the right framework 100-2 are adaptively redesigned. In addition, the left framework 100-1 and the right framework 100-2 can also be redesigned by applying other lightweight materials such as magnesium alloy, low-density SMC, carbon fiber, long-glass-fiber-reinforced nylon material and the like to the existing structure.
[0045] In the bumper framework provided in the embodiment, first, the left framework 100-1, the middle framework 200 and the right framework 100-2 are all made of lightweight materials; second, because the frame-shaped structure is a space structure composed of bars or beams, the use of large-area materials is avoided, thereby reducing the material usage of the reinforcing framework, the left framework 100-1 and the right framework 100-2; in addition, the middle upper framework 210 and the middle lower framework 230 of the middle framework 200 are hollow structures, thereby reducing the material usage of the middle upper framework 210 and the middle lower framework 230 and further reducing the weight of the middle framework 200; the purpose of lightweight design of the bumper framework is achieved. At the same time, the frame-shaped structure has good mechanical properties and can more effectively transfer and disperse loads, so that the bumper framework provided in the embodiment realizes lightweight design under the premise of meeting the mechanical properties, reduces the overall weight of the vehicle, improves fuel economy or endurance.
[0046] Figure 3 Fig. 2 shows a structural diagram of the reinforcing framework in the embodiment of the present application.
[0047] In some embodiments, the middle reinforcing framework 220 comprises two longitudinal frames 221 and at least two transverse frames 222 arranged in parallel with each other; each longitudinal frame 221 is connected to all the transverse frames 222 at the same end in the extension direction, and forms a frame structure with at least two openings.
[0048] In the embodiment, the middle reinforcing framework 220 comprises two longitudinal frames 221 and at least two transverse frames 222, and the frame structure formed by the two longitudinal frames 221 and the at least two transverse frames 222 can disperse the impact force along the transverse frames 222 and the longitudinal frames 221 when the vehicle is subjected to a collision, avoiding the concentration of impact force in a certain point or area, thereby reducing the degree of local deformation and damage, enabling the bumper framework to better withstand the impact force and protecting the key components of the vehicle and the safety of the passengers. Moreover, the frame structure has high bending and torsional stiffness, which can effectively resist the bending and torsional forces generated by the collision, maintain the shape of the bumper framework, prevent it from deforming excessively and losing its supporting effect on the bumper, and ensure that the bumper can still play a certain buffering and protection function after the collision. In addition, by arranging the longitudinal and transverse frames 222 connected to each other to form the frame structure, the material can be accurately distributed according to the stress conditions of different parts of the bumper, unnecessary material waste is reduced, the simple and regular structure form makes the use of materials more efficient, and under the premise of meeting the performance requirements of the bumper framework, the material cost and production energy consumption are reduced.
[0049] Figure 4 Fig. 4 shows a structural diagram of the right framework in the embodiment of the present application.
[0050] Referring to Figure 1 , Figure 2 and Figure 4 In some embodiments, along the transverse direction of the vehicle, the left framework 100-1 and the right framework 100-2 are each provided with a first connecting part 101 and a second connecting part 102 near one side of the middle framework 200; on a vertical plane perpendicular to the horizontal plane and parallel to the transverse direction of the vehicle, the projection of the first connecting part 101 overlaps the projection of the end of the middle upper framework 210, and the projection of the second connecting part 102 overlaps the projection of the end of the middle lower framework 230; the first connecting part 101 and the end of the middle upper framework 210 are embeddedly connected and connected by bolts, and the second connecting part 102 and the end of the middle upper framework 210 are embeddedly connected and connected by bolts.
[0051] In this embodiment, a fitting connection is provided between the first connecting portion 101 and the end of the upper-middle framework 210, and also between the second connecting portion 102 and the end of the upper-middle framework 210. The fitting connection is a common detachable connection. Taking the left framework 100-1 as an example, when the left framework 100-1 is assembled and connected to the middle framework 200, the left framework 100-1 and the middle framework 200 are fitted and connected to achieve preliminary positioning and assembly between the two, and then the left framework 100-1 and the middle framework 200 are fixedly connected by bolts, which facilitates the assembly of the left framework 100-1, the right framework 100-2 and the middle framework 200.
[0052] The bumper framework provided in this embodiment can improve the assembly efficiency of the bumper framework. Moreover, the connection strength between the left framework 100-1, the right framework 100-2 and the middle framework 200 is high, which is beneficial to improving the structural stability of the bumper framework.
[0053] Figure 5 As shown in Figure 1 the cross-sectional view of A-A in
[0054] In some embodiments, the cross-section of the middle-lower framework 230 is in a "day" shape. The middle-lower framework 230 has a simple structure, is lightweight, easy to obtain and has a low cost, which is beneficial to reducing the weight and cost of the bumper framework.
[0055] Figure 6 As shown in Figure 1 the cross-sectional view of B-B in
[0056] In some embodiments, the cross-section of the upper-middle framework 210 is in a "mu" shape. The upper-middle framework 210 has a simple structure, is lightweight, easy to obtain and has a low cost. Moreover, the multi-chamber structure of the "mu" shape increases the anti-buckling ability of the structure of the upper-middle framework 210. Especially when under compression or torsion, it can effectively prevent the occurrence of local buckling and overall instability of the upper-middle framework 210.
[0057] Refer to Figure 2 and Figure 3 , in some embodiments, the upper-middle framework 210, the middle reinforcement framework 220 and the middle-lower framework 230 are sequentially connected by bolts, that is, the middle framework 200 is a split structure, which is convenient for the installation and repair of the middle framework 200.
[0058] Figure 7 As shown in Figure 1 the cross-sectional view of C-C in
[0059] In some embodiments, the cross-sections of the horizontal frame 222 and the vertical frame 221 are both I-shaped. Thus, the horizontal frame 222 and the vertical frame 221 have good bending and torsional resistance in all directions. When a vehicle collision occurs, the collision force can be evenly distributed to the medium-strength frame 220. While bearing the main stress, the amount of material used can be reduced, and the weight of the medium-strength frame 220 can be reduced. Furthermore, when subjected to collision force, it can absorb energy through its own deformation, so that the bumper frame can play a good energy absorption role in collisions of different degrees.
[0060] See Figure 3 In some embodiments, the left frame 100-1, right frame 100-2, and middle reinforcing frame 220 are integrally formed structural components. This reduces the number of parts in the left frame 100-1, right frame 100-2, and middle reinforcing frame 220, thereby reducing assembly tolerances, reducing assembly steps for the bumper frame, shortening the production cycle, and lowering production costs. This is beneficial for improving the overall structural stability of the bumper frame, reducing failure points, optimizing product precision, and improving appearance. In specific implementations, the left frame 100-1, right frame 100-2, and middle reinforcing frame 220 can be formed in one piece using an aluminum alloy die-casting process. That is, liquid aluminum is rapidly filled into the mold under high pressure and solidified within the mold, resulting in a one-time completion of the overall structure and higher dimensional consistency.
[0061] Figure 8 As shown Figure 1 A cross-sectional view of DD.
[0062] See Figure 4 and Figure 8 In some embodiments, both the left frame 100-1 and the right frame 100-2 are provided with an outer frame structure 110 and a reinforcing rib group provided in the outer frame structure 110. The reinforcing rib group includes a first reinforcing rib 120 and a second reinforcing rib 130. The first reinforcing rib 120 extends laterally along the vehicle and the second reinforcing rib 130 extends vertically. The ends of the first reinforcing rib 120 and the second reinforcing rib 130 are fixedly connected to the outer frame structure 110.
[0063] In this embodiment, the first reinforcing rib 120 and the second reinforcing rib 130 can improve the structural strength of the left frame 100-1 and the right frame 100-2. In specific implementation, the intersection of the first reinforcing rib 120 and the second reinforcing rib 130 should correspond to the position of the left frame and the right frame that may be subjected to greater force during vehicle operation.
[0064] For specific implementation, see Figure 8The cross sections of the outer frame structure 110, the first reinforcing rib 120 and the second reinforcing rib 130 can all be in a "U" shape. The cross section shape in a "U" shape can more effectively resist bending force and reduce the deformation degree when force is applied. Thus, the left and right frames 100-1 and 100-2 can have better bending resistance.
[0065] Based on the same inventive concept, the application further provides a vehicle. The vehicle provided by the embodiments comprises the bumper frame of any of the above embodiments.
[0066] It can be understood that the vehicle provided by the embodiments of the application can be a van, a truck, a car or the like, and the application does not specifically limit this. The vehicle provided by the embodiments of the application has the beneficial effects of the bumper frame provided by the embodiments of the application, and specific descriptions can be referred to the specific descriptions of the bumper frame in the above embodiments, which will not be described herein again.
[0067] Although some specific embodiments of the application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the application. The scope of the application is defined by the appended claims.
Claims
1. A bumper skeleton, characterized in that, The left frame, the middle frame and the right frame are arranged in sequence along the vehicle transverse direction; The middle frame comprises a middle upper frame, a middle reinforcing frame and a middle lower frame which are fixedly connected in sequence from top to bottom, the middle upper frame and the middle lower frame are hollow lightweight material profile pieces extending along the vehicle transverse direction; The middle reinforcing frame, the left frame and the right frame are all lightweight material pressure casting structural pieces and are all in frame shape.
2. The bumper skeleton of claim 1, wherein, The middle reinforcing frame comprises two longitudinal side frames and at least two transverse side frames which are arranged in parallel to each other; Each longitudinal side frame is connected to all the transverse side frames at the same end in the extending direction and forms a frame structure with at least two openings.
3. The bumper skeleton of claim 1, wherein, Along the vehicle transverse direction, the left frame and the right frame are both provided with a first connecting part and a second connecting part on the side close to the middle frame; On a vertical plane perpendicular to the horizontal plane and parallel to the vehicle transverse direction, the projection of the first connecting part overlaps the projection of the end of the middle upper frame, and the projection of the second connecting part overlaps the projection of the end of the middle lower frame; The first connecting part and the end of the middle upper frame, and the second connecting part and the end of the middle upper frame are all connected by fitting and bolt connection.
4. The bumper skeleton of claim 1, wherein, The cross section of the middle lower frame is in the shape of "sun".
5. The bumper skeleton of claim 1, wherein, The cross section of the middle upper frame is in the shape of "eye".
6. The bumper skeleton of claim 4, wherein, The middle upper frame, the middle reinforcing frame and the middle lower frame are connected by bolt connection in sequence.
7. The bumper skeleton of claim 2, wherein, The cross section of the transverse side frame and the longitudinal side frame are both in the shape of "work".
8. The bumper skeleton of claim 1, wherein, The left frame, the right frame and the middle reinforcing frame are all integrally formed structural pieces.
9. The bumper skeleton of claim 1, wherein, The left frame and the right frame are both provided with an outer frame structure and a reinforcing rib group arranged in the outer frame structure, the reinforcing rib group comprises a first reinforcing rib and a second reinforcing rib, the first reinforcing rib and the second reinforcing rib cross each other, and the ends of the first reinforcing rib and the second reinforcing rib are fixedly connected to the outer frame structure.
10. A vehicle characterized by comprising: The bumper frame comprises the bumper frame as claimed in any one of claims 1 to 9.