CN219838609U

CN219838609U - Frame assembly and vehicle

Info

Publication number: CN219838609U
Application number: CN202320965036.8U
Authority: CN
Inventors: 李阳阳; 王宇; 李俊勇; 罗杰; 王磊; 刘勇
Original assignee: Suzhou Shidai Xin'an Energy Technology Co ltd
Current assignee: Suzhou Shidai Xin'an Energy Technology Co ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-10-17
Anticipated expiration: 2033-04-25

Abstract

The utility model relates to a frame assembly and a vehicle. The frame assembly comprises a first frame, a second frame and a third frame which are sequentially arranged along the length direction of the frame assembly, the second frame is connected with the first frame and the third frame, the second frame comprises a frame assembly and a bottom plate assembly, the frame assembly surrounds the bottom plate assembly and is respectively connected with the first frame and the third frame, and a containing cavity is formed by surrounding the frame assembly and the bottom plate assembly and used for containing a battery assembly of the vehicle. From this, the second frame not only can be as the part of the structure of frame subassembly, and its self still is formed with the chamber that holds that is used for holding battery pack simultaneously, has effectively improved the structure integrated level of frame subassembly, has reduced the quantity that is used for the structure of fixed battery pack on the frame subassembly to can increase the frame subassembly to battery pack's accommodation space, when frame subassembly is used for the vehicle, can improve the performance of vehicle.

Description

Frame assembly and vehicle

Technical Field

The utility model relates to the technical field of automobiles, in particular to a frame assembly and a vehicle.

Background

With the development of battery technology, the electromotive operation of automobiles has become a mainstream development trend. In the technical field of automobiles, the electric automobiles can comprise electric home automobiles, electric buses, electric trucks and the like according to application scenes; the electric vehicles can comprise pure electric vehicles, hybrid electric vehicles and the like.

In the related art, an electric automobile generally includes a frame and a battery pack mounted on the frame, but is limited by the structural form of the frame, the mounting space reserved for the battery pack on the frame is limited, and the electric quantity of the battery pack is restricted to be improved, so that the performance of the electric automobile is restricted to be improved.

Disclosure of Invention

The utility model provides a frame assembly and a vehicle, and aims to increase the accommodating space of the frame assembly for a battery assembly, thereby improving the performance of the vehicle.

In a first aspect, the present utility model provides a frame assembly, where the frame assembly includes a first frame, a second frame, and a third frame that are sequentially disposed along a length direction of the frame assembly, the second frame connects the first frame and the third frame, the second frame includes a frame assembly and a bottom plate assembly, the frame assembly is disposed around the bottom plate assembly and is respectively connected to the first frame and the third frame, and the frame assembly and the bottom plate assembly enclose a receiving cavity, where the receiving cavity is used to receive a battery assembly of a vehicle.

In some embodiments, the frame assembly includes two cross members and two longitudinal members, the two cross members being opposite each other in a length direction and being spaced apart, one of the two cross members being connected to the first frame and the other being connected to the third frame; the two longitudinal beams are opposite to each other along the width direction of the frame assembly and are arranged at intervals, the two longitudinal beams are located between the two cross beams and are connected with the two cross beams, and the cross beams, the longitudinal beams and the bottom plate assembly enclose to form a containing cavity.

In some embodiments, the receiving cavity includes a plurality of subchambers, at least one subchamber of the plurality of subchambers for receiving the battery assembly.

In some embodiments, at least some of the plurality of subchambers are spaced apart along the length.

In some embodiments, at least some of the plurality of subchambers are spaced apart along a width of the frame assembly.

In some embodiments, the frame assembly further comprises a first connection assembly and a second connection assembly, the first connection assembly disposed within and connected to the frame assembly; the second connecting component is connected with the first frame and the first connecting component.

In some embodiments, the first connection assembly includes a body portion and a connection portion, the body portion being connected to the bezel assembly; the connecting portion is arranged on the main body portion and protrudes relative to the main body portion, wherein the second connecting assembly penetrates through the main body portion and extends into the connecting portion, and the second connecting assembly is connected with the connecting portion.

In some embodiments, the first connection assembly further includes an extension portion disposed intersecting the main body portion and connected to the bezel assembly.

In some embodiments, the first connection assembly further includes a securing portion connecting the extension portion and the body portion.

In some embodiments, the first connecting component is provided in a plurality, and the plurality of first connecting components are arranged on the frame component at intervals.

In a second aspect, the present utility model provides a vehicle, which includes a frame assembly according to any one of the embodiments of the first aspect of the present utility model, and a battery assembly disposed on the frame assembly.

According to the vehicle frame assembly, the vehicle frame assembly comprises a first vehicle frame, a second vehicle frame and a third vehicle frame which are sequentially arranged along the length direction of the vehicle frame assembly, the second vehicle frame is connected with the first vehicle frame and the third vehicle frame, the second vehicle frame comprises a frame assembly and a bottom plate assembly, the frame assembly is arranged around the bottom plate assembly and is respectively connected with the first vehicle frame and the third vehicle frame, and a containing cavity is formed by enclosing the frame assembly and the bottom plate assembly and is used for containing a battery assembly of the vehicle. From this, the second frame not only can be as the part of the structure of frame subassembly, and its self still is formed with the chamber that holds that is used for holding battery pack simultaneously, has effectively improved the structure integrated level of frame subassembly, has reduced the quantity that is used for the structure of fixed battery pack on the frame subassembly to can increase the frame subassembly to battery pack's accommodation space, when frame subassembly is used for the vehicle, can improve the performance of vehicle.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are needed to be used in the embodiments of the present utility model will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.

FIG. 1 is a top view of a frame assembly provided in some embodiments of the present utility model;

FIG. 2 is a side view of a frame assembly provided in accordance with some embodiments of the present utility model;

FIG. 3 is a schematic view of a partial structure of a frame assembly according to some embodiments of the present utility model;

FIG. 4 is a schematic view of another partial structure of a frame assembly according to some embodiments of the present utility model;

fig. 5 is a schematic partial cross-sectional view of a frame assembly according to some embodiments of the present utility model.

The figures are not necessarily to scale.

Reference numerals illustrate:

x, length direction; y, width direction;

100. a frame assembly;

1. a first frame;

2. a second frame; 21. a frame assembly; 211. a cross beam; 212. a longitudinal beam; 22. a receiving chamber; 221. a subchamber;

3. a third frame;

4. a first connection assembly; 41. a main body portion; 42. a connection part; 43. an extension; 44. a fixing part;

5. and a second connection assembly.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, non-detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The term "and/or" in the present utility model is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In the present utility model, the character "/" generally indicates that the front and rear related objects are an or relationship.

In the embodiments of the present utility model, the same reference numerals denote the same components, and detailed descriptions of the same components are omitted in different embodiments for the sake of brevity. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the utility model shown in the drawings, as well as the overall thickness, length, width, etc. dimensions of the integrated device, are merely illustrative and should not be construed as limiting the utility model in any way.

The term "plurality" as used herein refers to two or more (including two).

In the related art, an electric automobile generally includes a frame and a battery pack mounted on the frame, the frame is generally provided with front and rear inclined struts, the front and rear inclined struts can influence the arrangement of the battery pack in the length direction of the frame, and in the width direction and the height direction of the frame, the requirements of the width of the automobile body and the ground clearance of the battery pack are respectively met, so that the mounting space of the battery pack is very limited, and the electric quantity of the battery pack is restricted to be improved, thereby influencing the performance of the automobile.

In view of the foregoing, an embodiment of the present utility model provides a frame assembly, which includes a first frame, a second frame, and a third frame that are sequentially disposed along a length direction of the frame assembly, the second frame connects the first frame and the third frame, the second frame includes a frame assembly and a bottom plate assembly, the frame assembly is disposed around the bottom plate assembly and is respectively connected with the first frame and the third frame, and a receiving cavity is formed by enclosing the frame assembly and the bottom plate assembly, and the receiving cavity is used for receiving a battery assembly of a vehicle. From this, the second frame not only can be as the structure part of frame subassembly, and its self still is formed with the chamber that holds that is used for holding battery pack simultaneously, has effectively improved the structure integrated level of frame subassembly, has reduced the quantity that is used for the structure of fixed battery pack on the frame subassembly to can increase the frame subassembly to battery pack's accommodation space, when frame subassembly is used for the vehicle, can improve the performance of vehicle.

Some embodiments of the utility model are described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 to 3, the frame assembly 100 includes a first frame 1, a second frame 2, and a third frame 3 sequentially disposed along a length direction X thereof, the second frame 2 connects the first frame 1 and the third frame 3, the second frame 2 includes a frame assembly 21 and a floor assembly (not shown), the frame assembly 21 is disposed around the floor assembly and is connected with the first frame 1 and the third frame 3, respectively, the frame assembly 21 and the floor assembly enclose a receiving chamber 22, and the receiving chamber 22 is used for receiving a battery assembly of a vehicle.

The first frame 1, the second frame 2 and the third frame 3 are disposed sequentially along the length direction X of the frame assembly 100, and it is understood that the first frame 1, the second frame 2 and the third frame 3 may be disposed in contact, may be disposed at intervals, or may have a partially overlapped structure, which is not limited in the present utility model.

The second frame 2 connects the first frame 1 and the third frame 3 in various manners, and may be a non-detachable connection, such as welding, or a detachable connection, such as a threaded connection. The second frame 2 may be connected to the first frame 1 and the third frame 3 in the same manner, or may be connected to each other in different manners, which is not limited by the present utility model.

The second frame 2 includes a rim assembly 21. The rim assembly 21 may have a variety of configurations, such as a square ring configuration or other contoured ring configuration. The frame assembly 21 may be a frame-type structure or a coaming-type structure, and in an exemplary embodiment of the present utility model, the frame assembly 21 may be a frame-type structure.

The second frame 2 further includes a floor assembly, and a rim assembly 21 is disposed around the floor assembly and cooperates with the floor assembly to define a receiving cavity 22. The frame member 21 may be disposed around the outer circumference of the base plate member or around the surface of the base plate member on the thickness side thereof, and the present utility model is not limited thereto.

In some examples, the second frame 2 may further include a roof assembly disposed opposite the floor assembly, and the roof assembly may be coupled to the bezel assembly 21 to enclose the receiving cavity 22.

According to the frame assembly 100 provided by the embodiment of the utility model, the first frame 1, the second frame 2 and the third frame 3 are included, the second frame 2 can be used as a part of the structure of the frame assembly 100, and meanwhile, the accommodating cavity 22 for accommodating the battery assembly is formed, so that the structural integration level of the frame assembly 100 is effectively improved, the number of structural members for fixing the battery assembly on the frame assembly 100 is reduced, the accommodating space of the frame assembly 100 for the battery assembly can be increased, and when the frame assembly 100 is used for a vehicle, the performance of the vehicle can be improved.

As shown in fig. 1 to 3, in some embodiments, the frame assembly 21 includes two cross members 211 and two longitudinal beams 212, the two cross members 211 being disposed opposite to each other in the length direction X and spaced apart, one of the two cross members 211 being connected to the first frame 1 and the other being connected to the third frame 3; the two longitudinal beams 212 are arranged opposite to each other and spaced apart along the width direction Y of the frame assembly 100, the two longitudinal beams 212 are located between the two cross beams 211 and connect the two cross beams 211, wherein the cross beams 211, the longitudinal beams 212 and the floor assembly enclose to form the receiving chamber 22.

The cross member 211 may have various structural forms, which may be a hollow structure or a solid structure, and illustratively, in the embodiment of the present utility model, the cross member 211 may be a hollow structure, so that the weight of the second frame 2 may be reduced, which is beneficial for achieving the light weight of the frame assembly 100. Likewise, stringers 212 may also be hollow structures.

The cross beam 211 may be connected to the longitudinal beam 212 in various manners, such as direct connection, e.g. welding, indirect connection, e.g. screw connection, or both may be connected by a transfer member, which is not limited in the present utility model. The cross member 211 may or may not be aligned with the side member 212, and as illustrated in fig. 1-3, the cross member 211 may extend beyond the side member 212.

According to the embodiment of the utility model, the frame assembly 21 comprises the two cross beams 211 and the two longitudinal beams 212, so that the structural form of the frame assembly 21 can be effectively simplified, the manufacturing difficulty of the frame assembly 21 is reduced, and the structural strength of the frame assembly 21 is ensured to a certain extent.

As shown in fig. 1 to 3, in some embodiments, the receiving chamber 22 includes a plurality of sub-chambers 221, at least one sub-chamber 221 of the plurality of sub-chambers 221 being for receiving a battery assembly.

A partition member partitioning the sub-chamber 221 may be provided in the accommodating chamber 22. For example, an intermediate beam may be provided in the accommodation chamber 22, and the intermediate beam may extend in the longitudinal direction X or in the width direction Y, and the accommodation chamber 22 may be partitioned into a plurality of sub-chambers 221 by the intermediate beam; alternatively, a partition may be provided in the accommodation chamber 22, and the partition may be arranged in the longitudinal direction X or in the width direction Y, and the accommodation chamber 22 may be partitioned into a plurality of subchambers 221 by the partition; alternatively, as shown in fig. 1 and 3, an intermediate beam and a partition plate may be simultaneously provided in the accommodating chamber 22, and the intermediate beam and the partition plate jointly partition the accommodating chamber 22 into a plurality of sub-chambers 221. The present utility model is not limited thereto.

At least one sub-chamber 221 of the plurality of sub-chambers 221 is used to accommodate the battery pack, that is, it may be that all of the plurality of sub-chambers 221 are used to accommodate the battery pack, or only a part of the sub-chambers 221 are used to accommodate the battery pack. When only a part of the sub-chamber 221 is used to house a battery pack, the rest of the sub-chamber 221 other than the battery pack may be used to house other functional members, such as electrical accessories or the like that control the battery pack.

The accommodating cavity 22 comprises a plurality of sub-cavities 221, so that the accommodating cavity 22 can be arranged in a modularized manner, and when the frame assembly 100 is used for a vehicle, the modularized management of the battery assembly in the accommodating cavity 22 is facilitated, so that the safety and reliability of the vehicle are improved. In addition, when the accommodating chamber 22 is partitioned into the plurality of subchambers 221, the partition member provided in the accommodating chamber 22 can also enhance the structural strength of the second frame 2, which is advantageous for improving the structural stability of the frame assembly 100.

Further, the plurality of subchambers 221 may have various arrangements.

In some examples, the plurality of subchambers 221 may be spaced apart along the length direction X.

In other examples, the plurality of subchambers 221 may be spaced apart along the width direction Y of the frame assembly 100.

In other examples, some of the plurality of subchambers 221 are spaced apart along the length direction X and some of the subchambers 221 are spaced apart along the width direction Y.

As shown in fig. 1-5, in some embodiments, the frame assembly 100 further includes a first connection assembly 4 and a second connection assembly 5, the first connection assembly 4 being disposed within the frame assembly 21 and connected to the frame assembly 21; the second connection assembly 5 connects the first frame 1 and the first connection assembly 4.

The first connecting component 4 is disposed in the frame component 21 and is connected with the frame component 21, and the first connecting component 4 and the frame component 21 can adopt various connecting modes, such as riveting, threaded connection or welding.

The second connection assembly 5 connects the first frame 1 and the first connection assembly 4, thereby indirectly connecting the first frame 1 and the frame assembly 21. The second connection assembly 5 and the first connection assembly 4 may be connected in various manners, such as screw connection or riveting, etc. Illustratively, in an embodiment of the present utility model, the second coupling assembly 5 and the first coupling assembly 4 may be threaded.

Of course, the second connecting member 5 may connect the third frame 3 and the frame member 21 in addition to the first frame 1 and the frame member 21.

According to the embodiment of the utility model, the second connecting component 5 is arranged to connect the first frame 1 and the first connecting component 4, so that the first frame 1 and the frame component 21 are indirectly connected, the structural forms of the frame component 21 and the first frame 1 can be simplified, and the processing and manufacturing difficulties of the frame component and the first frame 1 are reduced.

As shown in fig. 1-5, in some embodiments, the first connection assembly 4 includes a main body portion 41 and a connection portion 42, the main body portion 41 being connected to the bezel assembly 21; the connection part 42 is disposed on the main body 41 and protrudes relative to the main body 41, wherein the second connection component 5 penetrates the main body 41 and extends into the connection part 42, and the second connection component 5 is connected with the connection part 42.

The main body 41 is a main body structure of the first connecting member 4, and may have a plate-like structure. The main body 41 is connected to the frame assembly 21 in a variety of ways, such as welding or riveting.

The connection portion 42 is disposed on the main body portion 41 and protrudes with respect to the main body portion 41, and the connection portion 42 and the main body portion 41 may be integrally connected, that is, the first connection assembly 4 may be an integrally formed structure. The connection portion 42 may be provided in a tubular structure, and an inner wall thereof may be provided with threads so as to facilitate the threaded connection of the second connection assembly 5 with the connection portion 42. The connection part 42 may have one end opening or may have both end openings, and for example, in fig. 5, the connection part 42 may be provided as both end openings, and the second connection assembly 5 penetrates through the openings at both ends of the connection part 42.

In some examples, the second connection assembly 5 may include a plurality of bolts or screws, or the like.

As shown in fig. 1-5, in some embodiments, the first connecting assembly 4 further includes an extension 43, where the extension 43 intersects the main body 41 and is connected to the bezel assembly 21.

It will be appreciated that the intersecting arrangement may include a variety of situations, such as an oblique intersection or a perpendicular intersection, and that, illustratively, in embodiments of the present utility model, the extension 43 and the body 41 may intersect perpendicularly. For example, in fig. 4 and 5, the main body portion 41 and the extension portion 43 may each have a plate-like structure, and vertically intersect to form an L-shaped structure.

According to the embodiment of the utility model, the first connecting component 4 further comprises the extension part 43, and the extension part 43 is connected with the frame component 21, so that the contact area between the first connecting component 4 and the frame component 21 can be increased, and the connection strength between the first connecting component 4 and the frame component 21 is improved, thereby being beneficial to improving the structural strength and the structural stability of the frame component 100.

Further, the first connecting assembly 4 further includes a fixing portion 44, and the fixing portion 44 connects the extension portion 43 and the main body portion 41.

The fixing portion 44 may take various structural forms, such as a plate-like structure or a bar-like structure. The fixing portions 44 may be provided in one or more, and for example, in the embodiment of the present utility model, the fixing portions 44 may be provided in pairs.

The fixing portion 44 connects the extension portion 43 and the main body portion 41, which corresponds to the formation of a reinforcement rib structure on the first connection assembly 4, and is advantageous for enhancing the structural strength of the first connection assembly 4, thereby improving the structural stability of the frame assembly 100.

In some embodiments, the first connecting assemblies 4 are provided in a plurality, and the plurality of first connecting assemblies 4 are disposed at intervals on the frame assembly 21.

The plurality of first connecting members 4 may have the same or different structural forms. Illustratively, in the embodiment of the present utility model, the structural forms of the plurality of first connection assemblies 4 may be different, for example, a part of the first connection assemblies 4 may include the main body portion 41, and the remaining part of the first connection assemblies 4 may include the extension portion 43 and the fixing portion 44 in addition to the main body portion 41.

The plurality of first connecting assemblies 4 are arranged in the embodiment of the utility model, so that the connecting strength and the connecting stability of the frame assembly 21 and the first frame 1 can be improved, and the structural stability of the frame assembly 100 can be improved.

The utility model also provides a vehicle, which comprises the frame assembly 100 of any embodiment and a battery assembly, wherein the battery assembly is arranged on the frame assembly 100.

The battery assembly may include a plurality of electrical cells disposed on the frame assembly 100.

In some examples, the plurality of battery cells may be integrated into a plurality of battery modules, and the plurality of battery modules are disposed on the frame assembly 100.

In other examples, multiple cells may also be provided directly on the frame assembly 100. The utility model is not limited in this regard.

The vehicle can adopt electric drive, and the power form of the vehicle can be pure electric form or hybrid form. The vehicle may have a variety of application scenarios, which may be, for example, a home vehicle, a public vehicle, or a cargo vehicle, among others. The present utility model is not limited thereto.

In accordance with the above embodiments of the utility model, these embodiments are not exhaustive of all details, nor are they intended to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model and various modifications as are suited to the particular use contemplated. It should be understood that the scope of the present utility model is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present utility model, and they should be included in the scope of the present utility model.

Claims

1. A frame assembly for a vehicle, characterized in that the frame assembly comprises a first frame, a second frame and a third frame which are arranged in sequence along the length direction of the frame assembly, the second frame is connected with the first frame and the third frame,

the second frame includes frame subassembly and bottom plate subassembly, the frame subassembly encircles the bottom plate subassembly sets up, and respectively with first frame with third frame connection, the frame subassembly with the bottom plate subassembly encloses to close and is formed with and holds the chamber, hold the chamber and be used for holding the battery pack of vehicle.

2. The frame assembly of a vehicle of claim 1, wherein the bezel assembly comprises:

the two cross beams are opposite to each other along the length direction and are arranged at intervals, one of the two cross beams is connected with the first frame, and the other cross beam is connected with the third frame;

two longitudinal beams which are opposite to each other along the width direction of the frame assembly and are arranged at intervals, the two longitudinal beams are positioned between the two cross beams and are connected with the two cross beams,

the cross beam, the longitudinal beam and the bottom plate assembly enclose to form the accommodating cavity.

3. The vehicle frame assembly according to claim 1, wherein the receiving cavity includes a plurality of subchambers, at least one of the subchambers of the plurality of subchambers being configured to receive the battery assembly.

4. A frame assembly of a vehicle according to claim 3, wherein,

at least part of the subchambers in the plurality of subchambers are arranged at intervals along the length direction; and/or

At least part of the subchambers in the plurality of subchambers are arranged at intervals along the width direction of the frame assembly.

5. The frame assembly of a vehicle of claim 1, further comprising:

the first connecting component is arranged in the frame component and is connected with the frame component;

and the second connecting assembly is connected with the first frame and the first connecting assembly.

6. The frame assembly of a vehicle of claim 5, wherein the first connection assembly comprises:

the main body part is connected with the frame component;

a connecting part arranged on the main body part and protruding relative to the main body part,

the second connecting component penetrates through the main body part and extends into the connecting part, and the second connecting component is connected with the connecting part.

7. The vehicle frame assembly according to claim 6, wherein the first connection assembly further comprises an extension portion disposed intersecting the main body portion and connected to the frame assembly.

8. The vehicle frame assembly according to claim 7, wherein the first connection assembly further includes a fixing portion that connects the extension portion and the main body portion.

9. The frame assembly according to any one of claims 5 to 8, wherein a plurality of the first connection assemblies are provided, and a plurality of the first connection assemblies are provided at intervals to the frame assembly.

10. A vehicle, characterized by comprising:

a frame assembly according to any one of claims 1 to 9; and

the battery assembly is arranged on the frame assembly.