Chassis structure and vehicle

Abstract

The utility model discloses a chassis structure and a vehicle, the chassis structure comprises: two longitudinal beams which are arranged at an interval along the left-right direction of the vehicle; the battery pack comprises a box body, the box body comprises a first part and a second part, the first part is located on the upper side of the second part, the width of the first part is smaller than that of the second part, and at least part of the first part is located between the two longitudinal beams; and the mounting piece is connected between the second part and the longitudinal beam so as to fix the battery pack on the longitudinal beam. According to the chassis structure, at least part of the battery pack is placed between the two longitudinal beams, so that the assembly space of a vehicle is saved, the space outside the cross beams is not occupied, vehicle types are convenient to expand, the production cost is low, the compatibility is high, more battery modules can be accommodated, the endurance mileage of the vehicle is increased, the gravity center of the vehicle is low, and the vehicle is convenient to use. And the stability and controllability of the vehicle are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, and in particular to a chassis structure and a vehicle. Background Art

[0002] The commercial vehicle industry is accelerating towards green and low-carbon development, with hydrogen fuel cells, hybrid power, pure electricity, and methanol fuel blooming everywhere.

[0003] Traditional electric light trucks mostly adopt the method of symmetrically arranging battery packs on both sides of the left and right girders. This type of device has the following disadvantages: ① The weight of the battery box and the battery bracket is relatively large, and the degree of integration is low; ② The left and right arrangement of the battery box on the outside occupies a relatively large space of the whole vehicle. This type of vehicle is only suitable for pure electric vehicles, and there is no more space for range-extended or hydrogen fuel cell packs; ③ Communication wiring harnesses, power wiring harnesses, high-voltage boxes and other accessories are required between the left and right power batteries, and the degree of integration is low.

[0004] In traditional electric light trucks, a single battery pack is mostly located outside the girder, and a hydrogen fuel cell or a methanol fuel tank is arranged on the other side. However, the center of gravity of this type of device is outside the girder, which often results in a relatively heavy power battery bracket, a low lightweight index, and a high cost. Content of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, the utility model provides a chassis structure, which has a simple structure, low production cost, and high compatibility.

[0006] The utility model also provides a vehicle with the above-mentioned chassis structure.

[0007] The chassis structure according to the first aspect of the utility model is applied to a vehicle. The chassis structure includes: longitudinal beams, there are two longitudinal beams, and the two longitudinal beams are arranged at intervals in the left-right direction of the vehicle; a battery pack, the battery pack includes a box body, the box body includes a first part and a second part, the first part and the second part are connected in the up-down direction of the vehicle, the first part is located above the second part, the width of the first part is smaller than the width of the second part, and at least part of the first part is located between the two longitudinal beams; a mounting member, the mounting member is connected between the second part and the longitudinal beam to fix the battery pack on the longitudinal beam.

[0008] According to the chassis structure of the utility model, by placing at least part of the battery pack between the two longitudinal beams, the assembly space of the vehicle is saved, the space outside the cross beam is not occupied, and it is convenient to expand the vehicle model. Moreover, the connection method is simple, the production cost is low, the compatibility is high, more battery modules can be accommodated, the cruising range of the vehicle is increased, the center of gravity of the vehicle is lower, and the stability and controllability of the vehicle are improved.

[0009] In some embodiments, the mounting member is formed with a first connecting portion and a second connecting portion. The first connecting portion is formed at one end of the mounting member, and the second connecting portion is formed at the other end of the mounting member. The first connecting portion is connected to the longitudinal beam, and connecting plates extending in the front-rear direction of the vehicle are provided on both sides in the width direction of the second portion. The second connecting portion is connected to the connecting plates.

[0010] In some embodiments, the mounting member includes a first mounting plate and a second mounting plate. The first mounting plate and the second mounting plate are arranged at intervals. One end of the first mounting plate is formed with a first plate body, and one end of the second mounting plate is formed with a second plate body. The first plate body and the second plate body extend in the front-rear direction, and the first plate body and the second plate body are arranged in an overlapping manner. The other end of the first mounting plate is formed with a third plate body, and the other end of the second mounting plate is formed with a fourth plate body. The third plate body and the fourth plate body extend in the front-rear direction, and the third plate body and the fourth plate body are arranged in an overlapping manner.

[0011] In some embodiments, the first connecting portion is formed as a first through hole, and the first through hole penetrates through the first plate body and the second plate body in the thickness direction of the first plate body and the second plate body. The second connecting portion is formed as a second through hole, and the second through hole penetrates through the third plate body and the fourth plate body in the thickness direction of the third plate body and the fourth plate body.

[0012] In some embodiments, a first connecting hole is formed on the longitudinal beam. The mounting member and the longitudinal beam are connected by a fastener passing through the first connecting hole and the first through hole. A second connecting hole is formed on the connecting plate. The mounting member and the connecting plate are connected by a fastener passing through the second connecting hole and the second through hole.

[0013] In some embodiments, the mounting member further includes a third mounting plate. The third mounting plate is disposed between the first mounting plate and the second mounting plate, and the third mounting plate, the first mounting plate and the second mounting plate define a bearing cavity.

[0014] In some embodiments, the mounting member further includes a reinforcing plate. The reinforcing plate is disposed below the third mounting plate. There are two reinforcing plates, and the two reinforcing plates are respectively connected to the first mounting plate and the second mounting plate.

[0015] In some embodiments, weight-reducing holes are formed on the first mounting plate, the second mounting plate and the third mounting plate.

[0016] In some embodiments, the box body includes an upper cover and a base. The upper cover is disposed on the base. The upper cover includes a convex cover and a cover plate. The first part is formed on the convex cover, and the second part is jointly defined by the base and the cover plate.

[0017] A vehicle according to the second aspect of the present invention includes a chassis structure according to the first aspect of the present invention as described above.

[0018] By providing the chassis structure according to the first aspect, the vehicle according to the present invention improves the lightweight index and structural strength of the vehicle, reduces the production cost, improves the compatibility of the chassis structure, and ensures the stability and controllability of the vehicle.

[0019] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0020] Figure 1 is a schematic diagram of a chassis structure according to an embodiment of the present invention;

[0021] Figure 2 is Figure 1 a schematic diagram of another angle of the chassis structure shown in ;

[0022] Figure 3 is Figure 1 a schematic diagram of yet another angle of the chassis structure shown in ;

[0023] Figure 4 is Figure 1 a schematic diagram of still another angle of the chassis structure shown in ;

[0024] Figure 5 is Figure 1 a schematic diagram of the mounting member shown in ;

[0025] Figure 6 is Figure 5 a schematic diagram of another angle of the mounting member shown in ;

[0026] Figure 7 is Figure 5 a schematic diagram of yet another angle of the mounting member shown in ;

[0027] Figure 8 is Figure 5 a schematic diagram of still another angle of the mounting member shown in ;

[0028] Figure 9 is Figure 8 a cross-sectional schematic diagram of the mounting member shown in.

[0029] Reference Signs:

[0030] 100. Chassis structure; 1. Longitudinal beam; 2. Battery pack; 21. First part; 22. Second part; 23. Connecting plate; 3. Mounting member; 31. First mounting plate; 311. First plate body; 312. Third plate body; 32. Second mounting plate; 321. Second plate body; 322. Fourth plate body; 33. Third mounting plate; 34. Reinforcing plate; 35. First through hole; 36. Second through hole; 37. Weight reduction hole; 38. Bearing cavity. Detailed implementation mode

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0032] Refer to the following Figures 1-9 to describe the chassis structure 100 according to the embodiment of the first aspect of the present invention.

[0033] As Figures 1-9 shown, the chassis structure 100 according to the embodiment of the first aspect of the present invention includes: a longitudinal beam 1, a battery pack 2, and a mounting member 3.

[0034] Specifically, there are two longitudinal beams 1, and the two longitudinal beams 1 are arranged at intervals in the left - right direction of the vehicle. The battery pack 2 includes a box body, and the box body includes a first part 21 and a second part 22. The first part 21 and the second part 22 are connected in the up - down direction of the vehicle. The first part 21 is located above the second part 22. The width of the first part 21 is smaller than the width of the second part 22, and at least part of the first part 21 is located between the two longitudinal beams 1. The mounting member 3 is connected between the second part 22 and the longitudinal beam 1 to fix the battery pack 2 on the longitudinal beam 1.

[0035] It can be understood that the longitudinal beam 1 is an important component in the vehicle structure, which is used to support the weight of the vehicle and absorb the energy during collision. In an electric vehicle, the longitudinal beam 1 not only provides structural support but also serves as a mounting platform for the battery pack 2. As shown in the figure, both longitudinal beams extend along the front - rear direction of the vehicle and are arranged separately in the left - right direction of the vehicle. The box body of the battery pack 2 includes a first part 21 and a second part 22. The first part 21 is located above, and the second part is located below. The width of the first part 21 is smaller than the width of the second part 22. Battery modules are placed in both the first part 21 and the second part 22. The mounting member 3 is connected between the battery pack 2 and the longitudinal beam 1 to ensure that the battery pack 2 can be stably mounted at the bottom of the vehicle.

[0036] According to the chassis structure 100 of the embodiments of the present utility model, by placing at least a part of the battery pack 2 between the two longitudinal beams 1, the assembly space of the vehicle is saved, the space outside the cross beam is not occupied, the vehicle model expansion is convenient, and moreover, the connection method is simple, the chassis structure 100 has high strength, high lightweight index, low production cost, and high compatibility, can accommodate more battery modules, increases the cruising range of the vehicle, and the center of gravity of the vehicle is relatively low, improving the stability and controllability of the vehicle.

[0037] In some embodiments of the present utility model, the mounting member 3 is formed with a first connection portion and a second connection portion. The first connection portion is formed at one end of the mounting member 3, and the second connection portion is formed at the other end of the mounting member 3. The first connection portion is connected to the longitudinal beam 1, and on both sides in the width direction of the second part 22, there are connecting plates 23 extending in the front-rear direction of the vehicle, and the second connection portion is connected to the connecting plates 23. That is to say, the main functions of the first connection portion and the second connection portion are to transfer the load of the battery pack 2 to the longitudinal beam 1, ensure the stability of the battery pack 2 during vehicle driving, contribute to the space utilization of the vehicle, and moreover, ensure that the battery pack 2 has sufficient protection when encountering external impacts, realizing the effective fixation of the battery pack 2, and being convenient for maintenance, replacement, and expansion.

[0038] In some embodiments of the present utility model, the mounting member 3 includes: a first mounting plate 31 and a second mounting plate 32, as Figure 5 shown, the first mounting plate 31 and the second mounting plate 32 are arranged at intervals. One end of the first mounting plate 31 is formed with a first plate body 311, and one end of the second mounting plate 32 is formed with a second plate body 321. The first plate body 311 and the second plate body 321 extend in the front-rear direction, and the first plate body 311 and the second plate body 321 are arranged in an overlapping manner. The other end of the first mounting plate 31 is formed with a third plate body 312, and the other end of the second mounting plate 32 is formed with a fourth plate body 322. The third plate body 312 and the fourth plate body 322 extend in the front-rear direction, and the third plate body 312 and the fourth plate body 322 are arranged in an overlapping manner. It can be understood that the first plate body 311 and the second plate body 321 are arranged in an overlapping manner, and the third plate body 312 and the fourth plate body 322 are arranged in an overlapping manner, enhancing the connection strength of the mounting member 3, improving the fixing effect, and to a certain extent, can disperse stress, reduce the load of a single component, ensure the safe fixation of the battery pack 2, optimize the structural strength and stability of the entire chassis system, and contribute to improving the overall performance and safety of the electric vehicle.

[0039] In some embodiments of the present utility model, the first connection portion is formed as a first through hole 35, and the first through hole 35 penetrates the first plate body 311 and the second plate body 321 in the thickness direction of the first plate body 311 and the second plate body 321. The second connection portion is formed as a second through hole 36, and the second through hole 36 penetrates the third plate body 312 and the fourth plate body 322 in the thickness direction of the third plate body 312 and the fourth plate body 322. AsFigure 5 As shown, through holes are provided in the overlapping part, which ensures the structural stability and strength of the mounting member 3, can disperse stress, reduce the local load of the mounting member 3, and ensures that the battery pack 2 can be stably connected to the longitudinal beam 1.

[0040] Furthermore, a first connection hole is formed on the longitudinal beam 1. The mounting member 3 and the longitudinal beam 1 are connected by a fastener passing through the first connection hole and the first through hole 35. A second connection hole is formed on the connecting plate 23. The mounting member 3 and the connecting plate 23 are connected by a fastener passing through the second connection hole and the second through hole 36. Specifically, when the first plate body 311 and the second plate body 321 of the mounting member 3 overlap with the longitudinal beam 1, the first through hole 35 is aligned with the first connection hole on the longitudinal beam 1. When the third plate body 312 and the fourth plate body 322 of the mounting member 3 overlap with the connecting plate 23, the second through hole 36 is aligned with the second connection hole on the connecting plate 23. Thereby, the overall stability and reliability of the chassis structure 100 are improved, it is easy to assemble and disassemble, the durability and safety of the entire chassis structure 100 are improved, and moreover, it allows for flexible adjustment under different vehicle models and configurations to adapt to different installation requirements.

[0041] In some embodiments of the present invention, as Figure 5 shown, the mounting member 3 further includes a third mounting plate 33. The third mounting plate 33 is disposed between the first mounting plate 31 and the second mounting plate 32. The third mounting plate 33 and the first mounting plate 31 and the second mounting plate 32 define a bearing cavity 38. Thereby, the bearing cavity 38 has greater torsional strength and tensile strength and can bear sufficient torsional force and tensile force.

[0042] In some embodiments of the present invention, as Figure 7 shown, the mounting member 3 further includes a reinforcing plate 34. The reinforcing plate 34 is disposed below the third mounting plate 33. There are two reinforcing plates 34, and the two reinforcing plates 34 are respectively connected to the first mounting plate 31 and the second mounting plate 32. Thereby, by providing the reinforcing plate 34, the overall structural strength of the mounting member 3 is further enhanced, so that the battery pack 2 can remain stable under various driving conditions.

[0043] Preferably, the first mounting plate 31, the second mounting plate 32, the third mounting plate 33 and the reinforcing plate 34 are all connected by welding.

[0044] In some embodiments of the present invention, weight reduction holes 37 are formed on the first mounting plate 31, the second mounting plate 32 and the third mounting plate 33 for reducing weight, achieving the goal of structural lightweight, reducing production costs, and improving the overall performance and economy of the vehicle.

[0045] In some embodiments of the present utility model, it is characterized in that the box body includes an upper cover and a base. The upper cover is covered on the base to form a closed box body structure. The upper cover includes a convex cover and a cover plate. The first part 21 is formed on the convex cover, and the second part 22 is jointly defined by the base and the cover plate. Thereby, the space utilization of the chassis structure 100 is optimized, and the platformization and modular expansion space are realized.

[0046] The vehicle according to the second aspect embodiment of the present utility model includes the chassis structure 100 according to the first aspect embodiment of the present utility model above.

[0047] The vehicle according to the embodiment of the present utility model, by providing the chassis structure 100 of the first aspect embodiment above, thereby improves the lightweight index and structural strength of the vehicle, reduces the production cost, improves the compatibility of the chassis structure 100, and ensures the stability and controllability of the vehicle.

[0048] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0049] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "plural" is two or more, unless otherwise specifically defined.

[0050] In the present utility model, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

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

[0052] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A chassis structure, applied to a vehicle, characterized in that, Comprising: Longitudinal beams, there are two longitudinal beams, and the two longitudinal beams are arranged at intervals in the left-right direction of the vehicle; A battery pack, the battery pack includes a box body, the box body includes a first part and a second part, the first part and the second part are connected in the up-down direction of the vehicle, the first part is located above the second part, the width of the first part is smaller than the width of the second part, and at least part of the first part is located between the two longitudinal beams; Mounting members, the mounting members are connected between the second part and the longitudinal beams to fix the battery pack to the longitudinal beams.

2. The chassis structure according to claim 1, characterized in that, The mounting member is formed with a first connecting portion and a second connecting portion, the first connecting portion is formed at one end of the mounting member, the second connecting portion is formed at the other end of the mounting member, the first connecting portion is connected to the longitudinal beam, and connecting plates extending in the front-rear direction of the vehicle are provided on both sides in the width direction of the second part, and the second connecting portion is connected to the connecting plates.

3. The chassis structure according to claim 2, characterized in that, The mounting member includes: a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are arranged at intervals, a first plate body is formed at one end of the first mounting plate, a second plate body is formed at one end of the second mounting plate, the first plate body and the second plate body extend in the front-rear direction, the first plate body and the second plate body are arranged in an overlapping manner, a third plate body is formed at the other end of the first mounting plate, a fourth plate body is formed at the other end of the second mounting plate, the third plate body and the fourth plate body extend in the front-rear direction, and the third plate body and the fourth plate body are arranged in an overlapping manner.

4. The chassis structure according to claim 3, characterized in that, The first connecting portion is formed as a first through hole, the first through hole penetrates the first plate body and the second plate body in the thickness direction of the first plate body and the second plate body, the second connecting portion is formed as a second through hole, and the second through hole penetrates the third plate body and the fourth plate body in the thickness direction of the third plate body and the fourth plate body.

5. The chassis structure according to claim 4, characterized in that, A first connecting hole is formed on the longitudinal beam, and the mounting member and the longitudinal beam are connected by a fastener passing through the first connecting hole and the first through hole. A second connecting hole is formed on the connecting plate, and the mounting member and the connecting plate are connected by a fastener passing through the second connecting hole and the second through hole.

6. The chassis structure according to claim 5, characterized in that The mounting member further includes a third mounting plate, the third mounting plate is arranged between the first mounting plate and the second mounting plate, and the third mounting plate and the first mounting plate and the second mounting plate define a bearing cavity.

7. The chassis structure according to claim 6, characterized in that, The mounting member further includes reinforcing plates, the reinforcing plates are arranged below the third mounting plate, there are two reinforcing plates, and the two reinforcing plates are respectively connected to the first mounting plate and the second mounting plate.

8. The chassis structure according to claim 7, wherein, Weight-reducing holes are formed on the first mounting plate, the second mounting plate and the third mounting plate.

9. The chassis structure according to any one of claims 1-8, characterized in that, The box body includes an upper cover and a base, the upper cover covers the base, the upper cover includes a convex cover and a cover plate, the first part is formed on the convex cover, and the second part is jointly defined by the base and the cover plate.

10. A vehicle, characterized in that, Including the chassis structure according to any one of claims 1-9.

Images