Vehicle frame structure with built-in integrated battery assembly and commercial vehicle

Abstract

The utility model belongs to the technical field of commercial vehicles, and discloses a vehicle frame structure of a centrally-mounted integrated battery assembly and a commercial vehicle, the vehicle frame structure of the centrally-mounted integrated battery assembly comprises a vehicle frame assembly and a battery assembly, the vehicle frame assembly comprises a left longitudinal beam and a right longitudinal beam which are oppositely arranged at an interval, and sealing upper covers are arranged on the upper end faces of the left longitudinal beam and the right longitudinal beam; a front sealing beam and a rear sealing beam which are spaced are clamped between the left longitudinal beam and the right longitudinal beam to define a groove cavity with an opening in the lower end, and a first notch is formed in the front sealing beam or the rear sealing beam; the battery assembly comprises a chassis, and a plurality of battery cells are arranged on the chassis; the chassis is further provided with an end plate, the end plate can be embedded into the first notch, the end plate is detachably connected with the front sealing beam or the rear sealing beam provided with the first notch, and the chassis is detachably connected with the left longitudinal beam, the right longitudinal beam, the front sealing beam and the rear sealing beam. The commercial vehicle adopts the frame structure of the centrally-mounted integrated battery assembly, so that the purposes of light weight and convenience in disassembly are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of commercial vehicles, in particular to a frame structure with a centrally mounted integrated battery assembly and a commercial vehicle. Background Art

[0002] The frame is the load-bearing matrix of the vehicle. Taking commercial vehicles as an example, compared with traditional fuel commercial vehicles, new energy commercial vehicles need to optimize and adjust the installation of battery packs based on the original frame technology.

[0003] However, the battery packs of new energy commercial vehicles are currently mounted on the rear or on the side. Both of these methods use the vehicle frame as a carrier to carry the power battery. On the one hand, the two methods require the installation of an additional load-bearing frame on the basis of the battery pack, which increases the load of the vehicle frame. At the same time, additional installation space needs to be added outside the frame, which is not conducive to the lightweight of the entire vehicle. On the other hand, when the battery needs to be replaced, disassembly and assembly is more complicated. Utility Model Content

[0004] The purpose of the utility model is to provide a frame structure and a commercial vehicle with a centrally mounted integrated battery assembly, which, on the one hand, does not require additional installation space and omits additional load-bearing frames, thereby achieving the purpose of lightweight frame; on the other hand, it is simple to disassemble and assemble, and convenient for battery replacement.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The frame structure of the centrally mounted integrated battery assembly is applied to commercial vehicles and includes:

[0007] The frame assembly comprises a left longitudinal beam and a right longitudinal beam which are arranged at a relative interval, wherein the upper end surfaces of the left longitudinal beam and the right longitudinal beam are provided with a sealing upper cover, and a front sealing beam and a rear sealing beam which are spaced apart are sandwiched between the left longitudinal beam and the right longitudinal beam, and the sealing upper cover, the left longitudinal beam, the right longitudinal beam, the front sealing beam and the rear sealing beam form a groove cavity with an opening at the lower end, and a first notch is provided on the front sealing beam or the rear sealing beam;

[0008] A battery assembly; comprising a chassis, on which a plurality of battery cells are arranged so as to be placed in the slot cavity; an end plate is also arranged on the chassis, and the end plate can be embedded in the first notch, and the end plate is detachably connected to the front sealing beam or the rear sealing beam where the first notch is arranged, and the end plate is used for installing a control component connected to the battery cells, and the chassis is detachably connected to the left longitudinal beam, the right longitudinal beam, the front sealing beam and the rear sealing beam.

[0009] In some embodiments, the tops of the left longitudinal beam, the right longitudinal beam, the front sealing beam and the rear sealing beam are all provided with a first outer flange, and the sealing upper cover is connected to the first outer flange.

[0010] In some embodiments, the sealing upper cover is fixedly connected to the first outer flange.

[0011] In some embodiments, the first outer flange is arranged perpendicular to the left longitudinal beam, the right longitudinal beam, the front sealing beam and the rear sealing beam.

[0012] In some embodiments, the bottoms of the left longitudinal beam, the right longitudinal beam, the front sealing beam and the rear sealing beam are all provided with a second outer flange, and the chassis and the end plate are both detachably connected to the second outer flange.

[0013] In some embodiments, the second outer flange is provided with a plurality of first through holes spaced apart along its length direction, the chassis is provided with second through holes corresponding to the first through holes, and a connecting member connects the chassis and the second outer flange through the first through holes and the second through holes.

[0014] In some embodiments, the end plate is provided with a third outer flange that is docked with the second outer flange, and the third outer flange is provided with a third through hole corresponding to the first through hole, and the connecting member connects the third outer flange with the second outer flange through the first through hole and the third through hole.

[0015] In some embodiments, a heat dissipation channel is disposed in the chassis, and a liquid inlet pipe and a liquid outlet pipe are disposed on the chassis, and the liquid inlet pipe and the liquid outlet pipe are connected to two ends of the heat dissipation channel.

[0016] In some embodiments, the second outer flange at the bottom of the front sealing beam or the rear sealing beam is provided with two spaced second notches, and the liquid inlet pipe and the liquid outlet pipe are respectively embedded in the two second notches.

[0017] A commercial vehicle is also provided, comprising a frame structure with a centrally mounted integrated battery assembly as described above and wheels, wherein the left longitudinal beam and the right longitudinal beam are arranged on the wheels.

[0018] Beneficial effects of the utility model:

[0019] The battery cell is arranged in the groove cavity between the left longitudinal beam and the right longitudinal beam, and is closed by the chassis and end plates below, so as to avoid the load-bearing frame used in the rear-mounted and side-mounted types, reduce the overall mass of the frame and the overall occupied space, and achieve the purpose of lightweight; in addition, when replacing the battery assembly, there is no need to remove the sealing upper cover on the upper part, and the chassis and end plates only need to be removed from the bottom to replace the entire body, saving the time of disassembly; in addition, the battery cell is placed between the left longitudinal beam and the right longitudinal beam, and is closed by the sealing upper cover, chassis, end plate, front sealing beam and rear sealing beam, which also increases the overall rigidity and strength of the frame and makes the structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an exploded view of the frame structure of the utility model with a centrally mounted integrated battery assembly;

[0021] Figure 2 It is a schematic diagram of the frame assembly in the utility model;

[0022] Figure 3 It is a schematic diagram of the right longitudinal beam in the utility model;

[0023] Figure 4 It is a schematic diagram of the front sealing beam in the utility model;

[0024] Figure 5 It is a schematic diagram of the rear sealing beam in the utility model;

[0025] Figure 6 It is a schematic diagram of a battery assembly in the utility model;

[0026] Figure 7 It is a schematic diagram of the connection between the chassis and the end plate in the utility model;

[0027] Figure 8 It is a schematic diagram showing the heat dissipation flow channel of the chassis in the utility model.

[0028] In the figure:

[0029] 10. Frame assembly; 11. Left longitudinal beam; 12. Right longitudinal beam; 13. Sealed upper cover; 14. Front sealing beam; 15. Rear sealing beam; 16. First notch; 17. First outer flange; 18. Second outer flange; 181. First through hole; 182. Second notch; 19. Inner flange;

[0030] 20. Battery assembly; 21. Chassis; 211. Second through hole; 212. Heat dissipation channel; 22. Battery core; 23. End plate; 24. Third outer flange; 241. Third through hole; 25. Liquid inlet pipe; 26. Liquid outlet pipe;

[0031] 30. Connectors. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] like Figures 1 to 8As shown, the utility model provides a frame structure with a centrally mounted integrated battery assembly, which is applied to commercial vehicles. The frame structure with a centrally mounted integrated battery assembly includes a frame assembly 10 and a battery assembly 20. The frame assembly 10 includes a left longitudinal beam 11 and a right longitudinal beam 12 that are relatively spaced apart. A sealed upper cover 13 is provided on the upper end surface of the left longitudinal beam 11 and the right longitudinal beam 12. A front sealed beam 14 and a rear sealed beam 15 are sandwiched between the left longitudinal beam 11 and the right longitudinal beam 12. The sealed upper cover 13, the left longitudinal beam 11, the right longitudinal beam 12, the front sealed beam 14 and the rear sealed beam 15 form a lower end opening. A first notch 16 is provided on the front sealing beam 14 or the rear sealing beam 15; the battery assembly 20 includes a chassis 21, and a plurality of battery cells 22 are provided on the chassis 21, and the battery cells 22 can be placed in the slot cavity; an end plate 23 is also provided on the chassis 21, and the end plate 23 can be embedded in the first notch 16, and the end plate 23 is detachably connected to the front sealing beam 14 or the rear sealing beam 15 where the first notch 16 is provided, and the end plate 23 is used for installing a control component connected to the battery cell 22, and the chassis 21 is detachably connected to the left longitudinal beam 11, the right longitudinal beam 12, the front sealing beam 14 and the rear sealing beam 15.

[0037] Through the above structure, the battery cell 22 is arranged in the groove cavity between the left longitudinal beam 11 and the right longitudinal beam 12, and is closed by the chassis 21 and the end plate 23 below, thereby avoiding the load-bearing frame used in the rear-mounted and side-mounted types, reducing the overall mass of the frame and reducing the overall occupied space, thereby achieving the purpose of lightweight; in addition, when replacing the battery assembly 20, there is no need to remove the sealing upper cover 13 located on the upper part, and the chassis 21 and the end plate 23 only need to be removed from the bottom to replace the entire body, thus saving the time of disassembly; in addition, the battery cell 22 is placed between the left longitudinal beam 11 and the right longitudinal beam 12, and is closed by the sealing upper cover 13, the chassis 21, the end plate 23, the front sealing beam 14 and the rear sealing beam 15, which also increases the overall rigidity and strength of the frame and makes the structure more stable.

[0038] It is understandable that the front sealing beam 14 and the rear sealing beam 15 disposed between the left longitudinal beam 11 and the right longitudinal beam 12 can be provided in multiple groups, that is, multiple slots are formed between the left longitudinal beam 11 and the right longitudinal beam 12 to maximize the number of battery assemblies 20 and improve the battery life. In addition, the control assembly on the end plate 23 is a prior art, which is a component that connects the battery cell 22 with an external device.

[0039] In some embodiments, the top and bottom of the left longitudinal beam 11 and the right longitudinal beam 12 are both provided with inner flanges 19, and the inner flanges 19 are located on the opposite side of the left longitudinal beam 11 and the right longitudinal beam 12. The front sealing beam 14 and the rear sealing beam 15 are fixedly connected to the inner flanges 19, the left longitudinal beam 11 and the right longitudinal beam 12, so that the connection structure of the front sealing beam 14 and the rear sealing beam 15 is more stable. Furthermore, the inner flanges 19 are integrally formed with the front sealing beam 14 and the rear sealing beam 15.

[0040] like Figure 2 and Figure 3 As shown, in some embodiments, the tops of the left longitudinal beam 11, the right longitudinal beam 12, the front sealing beam 14 and the rear sealing beam 15 are all provided with a first outer flange 17, and the sealing upper cover 13 is fixedly connected to the first outer flange 17; the first outer flange 17 increases the bearing capacity of the left longitudinal beam 11 and the right longitudinal beam 12 on the sealing upper cover 13, making the structure more stable. Furthermore, the first outer flange 17 is integrally provided with the left longitudinal beam 11, the right longitudinal beam 12, the front sealing beam 14 and the rear sealing beam 15, further ensuring the strength of the connection. Exemplarily, the first outer flange 17 and the sealing upper cover 13 include but are not limited to being connected by welding.

[0041] In some embodiments, the first outer flange 17 extends away from the groove cavity, and the first outer flange 17 is vertically arranged with the left longitudinal beam 11, the right longitudinal beam 12, the front sealing beam 14 and the rear sealing beam 15 to enhance stability. It should be noted here that when the sealing upper cover 13 is fixed, the inner flange 19 located on the left longitudinal beam 11 and the right longitudinal beam 12 can also play an auxiliary supporting role. Based on this, the upper end surfaces of the front sealing beam 14 and the rear sealing beam 15 can also be provided with an inner flange 19 to increase the supporting force for the sealing upper cover 13. The inner flange 19 is integrally formed with the front sealing beam 14 and the rear sealing beam 15.

[0042] like Figure 4 and Figure 5 As shown, in some embodiments, the bottom of the left longitudinal beam 11, the right longitudinal beam 12, the front sealing beam 14 and the rear sealing beam 15 are all provided with a second outer flange 18, and the chassis 21 and the end plate 23 are both detachably connected to the second outer flange 18. In the current embodiment, the second outer flange 18 is integrally provided with the left longitudinal beam 11, the right longitudinal beam 12, the front sealing beam 14 and the rear sealing beam 15, and the second outer flange 18 is perpendicular to the left longitudinal beam 11, the right longitudinal beam 12, the front sealing beam 14 and the rear sealing beam 15. Taking the first notch 16 provided on the front sealing beam 14 as an example, due to the existence of the end plate 23, the second outer flange 18 on the front sealing beam 14 is provided along the edge of the first notch 16, so that the end plate 23 can be connected to the second outer flange 18. It can be understood that when the first notch 16 is provided on the rear sealing beam 15, the second outer flange 18 on the rear sealing beam 15 is provided along the edge of the first notch 16. Similarly, in some embodiments, the lower end surfaces of the front sealing beam 14 and the rear sealing beam 15 may also be provided with inner flanges 19 to increase the contact area with the chassis 21 .

[0043] Further, the second outer flange 18 is provided with a plurality of first through holes 181 at intervals along its length direction, the chassis 21 is provided with a second through hole 211 corresponding to the first through hole 181, and the connecting member 30 connects the chassis 21 and the second outer flange 18 through the second through hole 211 and the first through hole 181; and the end plate 23 is provided with a third outer flange 24 that is docked with the second outer flange 18, and the third outer flange 24 is provided with a third through hole 241 corresponding to the first through hole 181, and the connecting member 30 connects the third outer flange 24 and the second outer flange 18 through the first through hole 181 and the third through hole 241; illustratively, the connecting member 30 is a combination of a bolt and a nut or a stud and a nut. In other embodiments, the second outer flange 18 and the chassis 21 or the second outer flange 18 and the third outer flange 24 can also be connected by other detachable forms such as bonding or clamping. In some embodiments, in order to better disperse the pressure, the end plate 23 is trapezoidal or rectangular, and the corresponding first notch 16 is also trapezoidal or rectangular.

[0044] like Figure 7 and Figure 8 As shown, in some embodiments, in order to facilitate the heat dissipation of the battery cell 22, a heat dissipation channel 212 is provided in the chassis 21, and a liquid inlet pipe 25 and a liquid outlet pipe 26 are also provided on the chassis 21. The liquid inlet pipe 25 and the liquid outlet pipe 26 are respectively connected to the two ends of the heat dissipation channel 212, so that the coolant can be circulated into the chassis 21 to cool the battery cell 22. Based on the above-mentioned arrangement of the liquid inlet pipe 25 and the liquid outlet pipe 26, the second outer flange 18 located at the bottom of the front sealing beam 14 or the rear sealing beam 15 is provided with two spaced second notches 182, so that when the chassis 21 is fixed on the second outer flange 18, the liquid inlet pipe 25 and the liquid outlet pipe 26 are embedded in the above-mentioned second notches 182 to avoid interference; in addition, embedding the liquid inlet pipe 25 and the liquid outlet pipe 26 in the above-mentioned second notches 182 can also form an auxiliary limiting effect.

[0045] The utility model also provides a commercial vehicle, which includes the frame structure with the centrally mounted integrated battery assembly and wheels, and the left longitudinal beam 11 and the right longitudinal beam 12 are arranged on the wheels. Thus, an additional load-bearing frame is omitted, so that the frame is lightweight, and on the other hand, it is easy to disassemble and assemble, and convenient for replacing the battery.

[0046] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A vehicle frame structure with a centrally mounted integrated battery assembly, applied to commercial vehicles, characterized in that: include: A vehicle frame assembly (10) comprises a left longitudinal beam (11) and a right longitudinal beam (12) which are arranged at a relative interval, wherein the upper end surfaces of the left longitudinal beam (11) and the right longitudinal beam (12) are provided with a sealing upper cover (13), and a front sealing beam (14) and a rear sealing beam (15) which are spaced apart are sandwiched between the left longitudinal beam (11) and the right longitudinal beam (12), wherein the sealing upper cover (13), the left longitudinal beam (11), the right longitudinal beam (12), the front sealing beam (14) and the rear sealing beam (15) enclose a groove cavity with an opening at the lower end, and a first notch (16) is provided on the front sealing beam (14) or the rear sealing beam (15); A battery assembly (20) comprises a chassis (21), wherein a plurality of battery cells (22) are arranged on the chassis (21) so as to be placed in the slot cavity; an end plate (23) is also arranged on the chassis (21), wherein the end plate (23) can be embedded in the first notch (16), wherein the end plate (23) is detachably connected to the front sealing beam (14) or the rear sealing beam (15) on which the first notch (16) is arranged, wherein the end plate (23) is used for installing a control assembly connected to the battery cells (22), and wherein the chassis (21) is detachably connected to the left longitudinal beam (11), the right longitudinal beam (12), the front sealing beam (14) and the rear sealing beam (15).

2. The frame structure of the centrally mounted integrated battery assembly according to claim 1, characterized in that: The tops of the left longitudinal beam (11), the right longitudinal beam (12), the front sealing beam (14) and the rear sealing beam (15) are all provided with a first outer flange (17), and the sealing upper cover (13) is connected to the first outer flange (17).

3. The frame structure of the centrally mounted integrated battery assembly according to claim 2, characterized in that: The sealing upper cover (13) is fixedly connected to the first outer flange (17).

4. The frame structure of the centrally mounted integrated battery assembly according to claim 2, characterized in that: The first outer flange (17) is arranged perpendicularly to the left longitudinal beam (11), the right longitudinal beam (12), the front sealing beam (14) and the rear sealing beam (15).

5. The frame structure of the centrally mounted integrated battery assembly according to claim 1, characterized in that: The bottoms of the left longitudinal beam (11), the right longitudinal beam (12), the front sealing beam (14) and the rear sealing beam (15) are all provided with a second outer flange (18), and the chassis (21) and the end plate (23) are both detachably connected to the second outer flange (18).

6. The vehicle frame structure with a centrally mounted integrated battery assembly according to claim 5, characterized in that: The second outer flange (18) is provided with a plurality of first through holes (181) at intervals along its length direction, the chassis (21) is provided with second through holes (211) corresponding to the first through holes (181), and the connecting member (30) connects the chassis (21) and the second outer flange (18) via the first through holes (181) and the second through holes (211).

7. The vehicle frame structure with a centrally mounted integrated battery assembly according to claim 6, characterized in that: The end plate (23) is provided with a third outer flange (24) that is docked with the second outer flange (18); the third outer flange (24) is provided with a third through hole (241) corresponding to the first through hole (181); the connecting member (30) connects the third outer flange (24) and the second outer flange (18) via the first through hole (181) and the third through hole (241).

8. The vehicle frame structure with a centrally mounted integrated battery assembly according to claim 5, characterized in that: A heat dissipation channel (212) is provided in the chassis (21), and a liquid inlet pipe (25) and a liquid outlet pipe (26) are provided on the chassis (21); the liquid inlet pipe (25) and the liquid outlet pipe (26) are in communication with both ends of the heat dissipation channel (212).

9. The vehicle frame structure with a centrally mounted integrated battery assembly according to claim 8, characterized in that: The second outer flange (18) at the bottom of the front sealing beam (14) or the rear sealing beam (15) is provided with two spaced second notches (182), and the liquid inlet pipe (25) and the liquid outlet pipe (26) are respectively embedded in the two second notches (182).

10. A commercial vehicle, comprising a frame structure and wheels of a centrally mounted integrated battery assembly as claimed in any one of claims 1 to 9, characterized in that: The left longitudinal beam (11) and the right longitudinal beam (12) are arranged on the wheel.

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