CN218085722U

CN218085722U - Frame assembly and vehicle

Info

Publication number: CN218085722U
Application number: CN202222748400.3U
Authority: CN
Inventors: 左威威; 董金国; 简奔; 杨晓宁
Original assignee: Zhejiang Remote Smart Core Technology Co ltd; Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd; Zhejiang Remote Commercial Vehicle R&D Co Ltd
Current assignee: Zhejiang Remote Smart Core Technology Co ltd; Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd; Zhejiang Remote Commercial Vehicle R&D Co Ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2022-12-20
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses a frame subassembly and vehicle, wherein, the frame subassembly includes frame and installing support, the frame is including two longerons that set up relatively, the upper end of installing support respectively with two the longeron is fixed mutually, the lower extreme of installing support is equipped with the installation position, the installation position is used for being connected with the side of battery package, and will the battery package is fixed the below of frame, the battery package is located two between the longeron. The utility model discloses technical scheme fixes the battery package in the frame below, solves the battery package and occupies back space or both sides space, and the frame of being not convenient for carries out arranging of other annex, hinders the problem of motorcycle type extension.

Description

Frame assembly and vehicle

Technical Field

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

Background

As the development trend of the current vehicle field, the electrically driven heavy special vehicle also has development requirements. The power battery of the existing electric vehicle is usually arranged in two modes, namely a back type and a side hanging type, wherein the back type is that a bracket is manufactured in the space behind a cab and the battery is stacked on a bracket, so that the defects that the axle load of a front axle is increased, the requirement on the structural strength of the bracket is high due to the influence of gradient and acceleration and deceleration, the safety of the cab is influenced due to the looseness of the bracket, the vision of the back part is shielded, the arrangement space is compressed, the cargo loading amount of a cargo box is reduced, and the total electric quantity of the battery in the pure back is limited; the battery bracket of side-hanging is to do the battery bracket in girder outside both sides, stack the battery on the bracket of both sides, the shortcoming is to lay enough electric quantity and need occupy great space between front and back axle, the battery box arranges the great space of whole car that occupies about in the outside, this motorcycle type only is suitable for pure electric motorcycle type, then there is not more space to increase journey or hydrogen fuel, the number of piles that the battery is range upon range is required to be increased when the big electric quantity is hung to simple side simultaneously, can reduce the ground clearance, be unfavorable for vehicle trafficability characteristic, in addition among the prior art, in order to dodge the space that the battery package was hung to side, adopt to arrange the battery package between the frame, this scheme is not applicable to the vehicle that the axle spacing is less or both sides need arrange special construction equipment, it has more installation space to need to have between the two longerons of frame, and the intensity of frame needs to satisfy the demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a frame subassembly for new forms of energy vehicle, fixes the battery package in the frame below, solves among the above-mentioned vehicle battery package and occupies back space or both sides space, and the frame of not being convenient for carries out arranging of other annex, hinders the problem of motorcycle type extension.

In order to achieve the above object, the utility model provides a frame assembly, include:

the frame comprises two longitudinal beams which are oppositely arranged; and

the upper end of the mounting bracket is respectively fixed with the two longitudinal beams, the lower end of the mounting bracket is provided with a mounting position, the mounting position is used for being connected with the side edge of a battery pack, the battery pack is fixed below the frame, and the battery pack is positioned between the two longitudinal beams.

Optionally, the mounting bracket includes a plurality of bracket units respectively arranged on the two longitudinal beams at intervals, the bracket units include a first connecting section extending along the Z direction of the frame and a second connecting section connected to an end of the first connecting section and extending along the Y direction of the frame, at least a portion of the first connecting section is connected to one of the longitudinal beams, and the second connecting section is used for being connected to a side edge of the battery pack.

Optionally, the bracket unit further includes a first reinforcing plate disposed on a side of the first connecting section facing away from the longitudinal beam, and the first reinforcing plate is connected to the second connecting section.

Optionally, a cavity is provided between the first reinforcing plate and the first connecting section.

Optionally, a plurality of mounting holes are correspondingly arranged on the first connecting section and the first reinforcing plate in a penetrating manner, and the mounting holes are used for fasteners to penetrate through so as to fix the bracket unit and the longitudinal beam.

Optionally, the bracket unit further includes a plurality of column pipes, one of the column pipes correspondingly penetrates through one of the mounting holes, the column pipe is located between the first reinforcing plate and the first connecting section, and a fastener penetrates through the column pipe to fix one of the bracket unit and one of the longitudinal beams.

Optionally, the bracket unit further includes a second reinforcing plate, the second reinforcing plate is disposed on a side of the second connecting section facing away from the first connecting section, and the second reinforcing plate is connected to the second connecting section.

Optionally, the second connecting section and the second reinforcing plate are provided with fixing holes, and the fixing holes are used for a fastener to penetrate through to fix the bracket unit and the battery pack.

Optionally, a preset height H1 is provided between the bottom of the first reinforcing plate and the second connecting section, and the preset height H1 is greater than the length of the fastener penetrating through the second connecting section.

Optionally, the bracket unit further includes a third reinforcing plate, and the third reinforcing plate is connected to the first connecting section, the second connecting section, and the first reinforcing plate.

The utility model discloses still provide a vehicle, include:

the frame assembly as described above; and

the battery pack comprises a battery frame, wherein a fixing position is arranged on the outer side of the battery frame and connected with the mounting position, and the battery pack is fixed below the frame.

The utility model discloses technical scheme is through adopting frame and installing support, the frame is including two longerons that set up relatively, the upper end of installing support respectively with two the longeron is fixed mutually, the lower extreme of installing support is equipped with the installation position, the installation position is used for being connected with the side of battery package, and will the battery package is fixed the below of frame, the battery package is located two between the longeron. The battery pack is installed in the scheme, so that redundant spaces on two sides of the vehicle are not occupied, and the vehicle type is convenient to expand. The battery pack can be freely disassembled, and is convenient to disassemble and maintain. The mounting bracket has the advantages of simple structure, low manufacturing cost and high compatibility. Compare in the collet through battery holder and lift the battery package and fix, this scheme cancellation battery holder's collet for battery holder is higher, with low costs than original scheme lightweight degree. The scheme does not occupy redundant spaces on two sides of the frame, and facilitates vehicle type expansion. Meanwhile, the limit of a bottom support is avoided, and the matching surfaces of the finished automobile and the power battery pack are arranged on the side wall instead of the Z direction of the finished automobile. The structure can greatly provide more Z-direction spaces for the power battery pack so as to facilitate the free expansion of the electric quantity of the subsequent power battery pack.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of the present invention for mounting a vehicle frame and a battery pack;

FIG. 2 is a schematic view of the exploded structure of FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a schematic structural view of the holder unit of FIG. 1;

FIG. 6 is a schematic structural view of an embodiment of the fixing bracket of FIG. 1;

FIG. 7 is a cross-sectional view of the fixing bracket of FIG. 6;

FIG. 8 is a schematic structural view of another embodiment of the fixing bracket of FIG. 1;

FIG. 9 is a cross-sectional view of the fixing bracket of FIG. 8;

FIG. 10 is a schematic view of another embodiment of the mounting bracket of FIG. 1;

fig. 11 is a sectional view schematically showing the fixing bracket of fig. 10.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As the development trend of the current vehicle field, the electrically driven heavy special vehicle also has development requirements. The power batteries of the conventional electric vehicle are usually arranged in two ways, namely a back type and a side hanging type, wherein the back type is that a bracket is manufactured in the space behind a cab, and the batteries are stacked on a bracket, so that the defects that the axle load of a front axle is increased, the requirement on the structural strength of the bracket is high due to the influence of gradient and acceleration and deceleration, the safety of the cab is influenced due to the looseness of the bracket, the view of the rear part is shielded, the arrangement space is compressed, the cargo loading capacity of a cargo box is reduced, and the total electric quantity of the batteries in the back is limited; the battery bracket is done in the outside both sides of girder to the side-hung battery bracket, stack the battery on the bracket of both sides, the shortcoming is to lay enough electric quantity and need occupy great space between front and rear axle, the battery box arranges the great space of whole car that occupies about in the outside, this motorcycle type only is suitable for pure electric motorcycle type, then do not have more spaces to increase journey or hydrogen fuel cell package, and be not suitable for the less or both sides of interaxial distance and need arrange the vehicle of special construction equipment, the number of piles that need increase the battery range upon range of when the big electric quantity of pure side-hung simultaneously, can reduce the ground clearance, be unfavorable for vehicle trafficability characteristic.

To this end, the present invention provides a vehicle 100.

Referring to fig. 1 to 3, a vehicle 100 includes a frame assembly and a battery pack 30, the frame assembly includes a frame 10 and a mounting bracket 20, an upper end of the mounting bracket 20 is fixed to the frame 10, a mounting position located below the frame 10 is formed at a lower end of the mounting bracket 20, the upper end of the mounting bracket 20 is one end of the mounting bracket 20 extending in a Z direction of the frame 10, the lower end of the mounting bracket 20 is the other end opposite to the upper end, the battery pack 30 includes a battery frame 50, a fixing position is provided on an outer side of the battery frame 50, the fixing position is connected to the mounting position, and the battery pack 30 is fixed below the frame 10.

In the prior art, in order to dodge the space that battery package 30 was hung to the side, adopt and arrange battery package 30 between frame 10, it has more installation space to need to have between two longerons 11 of frame 10, and the intensity of frame 10 needs to satisfy the demand, and traditional frame 10 generally constitutes for longeron 11 and crossbeam, and the space arrangement is not enough, frame 10 that traditional longeron 11 and each crossbeam constitute in addition, the crossbeam cross-section is great leads to the inner space narrow and small relatively, is unfavorable for installing battery package 30 between the crossbeam about frame 10. The battery pack 30 has a limited capacity, and the battery pack 30 is disposed under the vehicle body frame 10 through a battery bracket to release the space on both sides of the vehicle body frame 10, but the bottom-mounted battery pack 30 of the battery bracket is often used, and the battery bracket needs to form a frame, so that the battery bracket has a large weight, a low weight, and a high cost. The reason for the battery bracket is that on one hand, the rigidity and torsion of the battery frame 50 are insufficient, and on the other hand, the whole vehicle matching is not considered for the battery capacity and cost consideration of the battery factory. Therefore, under the requirement that the frame strength and torsion of the battery pack 30 meet the requirement, the battery pack 30 is arranged below the frame 10 through the mounting bracket 20 according to the scheme, the mounting bracket 20 is connected with the battery frame 50, and the battery pack 30 is fixed below the frame 10, so that the space of the whole vehicle occupied by the battery pack 30 in the left and right sides is saved, the vehicle 100 not only can be suitable for pure electric vehicle types, but also can be used for extended range or hydrogen fuel cell vehicle types through the space avoided in the left and right sides, and the arrangement of other accessories of the whole vehicle can be facilitated, such as a generator, an oil tank, a communication wire harness, a power wire harness, a high-pressure tank and the like. The bottom support of the battery bracket is eliminated, so that the battery bracket is higher in light weight degree and low in cost compared with the original scheme. The scheme does not occupy redundant space on two sides of the vehicle 100, and facilitates vehicle type expansion.

In order to secure battery pack 30 under frame 10, this solution provides an improvement to the frame assembly and frame of battery pack 30.

Referring to fig. 1 to 5, a description will be first given of a vehicle frame assembly, which includes a vehicle frame 10 and a mounting bracket 20, where the vehicle frame 10 includes two longitudinal beams 11 disposed oppositely, the upper end of the mounting bracket 20 is fixed to the two longitudinal beams 11, respectively, the lower end of the mounting bracket 20 is provided with a mounting location, the mounting location is used to connect with a side edge of a battery pack 30, so as to fix the battery pack 30 below the vehicle frame 10, and the battery pack 30 is located between the two longitudinal beams 11.

In an embodiment, the mounting brackets 20 may be disposed on two cross beams of the frame 10 disposed along the X direction, the mounting brackets 20 are a frame with an upper opening and a lower opening, or two mounting brackets 20 disposed separately in the front and the rear, the upper ends of the mounting brackets 20 are respectively connected to the two cross beams, such as welded, bolted, riveted, or the like, the lower ends of the mounting brackets 20 in the front and the rear of the X direction cooperate to define a mounting position, and cooperate with the side edges of the battery frame 50 to fix the battery pack 30.

In another embodiment, the mounting bracket 20 may be disposed on the longitudinal beam 11 disposed along the X direction of the vehicle frame 10, the mounting bracket 20 is a frame whole with an upper opening and a lower opening or two mounting brackets 20 disposed separately from each other on the left and right, the upper end of the mounting bracket 20 is connected to the two longitudinal beams 11, such as welded, bolted, riveted, or the like, respectively, and the lower end of the mounting bracket 20 on the left and right longitudinal beams 11 defines a mounting position, which cooperates with the battery frame 50 to fix the battery.

The mounting bracket 20 may be an integrally formed one, such as a frame structure with upper and lower openings; or two symmetrically arranged integers, such as a three-fork structure, or a plurality of monomers which are symmetrically distributed at intervals.

The utility model discloses technical scheme is through adopting frame 10 and installing support 20, installing support 20's upper end with frame 10 is fixed mutually, installing support 20's lower extreme is formed with and is located the installation position of frame 10 below, the installation position is used for being connected with battery package 30's side, and will battery package 30 is fixed the below of frame 10. The scheme is adopted, the battery pack 30 does not occupy redundant space on two sides of the vehicle 100, and the vehicle type expansion is facilitated. The battery pack 30 is easy to maintain and can be freely detached. The mounting bracket 20 has simple structure, low manufacturing cost and high compatibility. Compare in the collet through battery holder and lift battery package 30 and fix, this scheme cancellation battery holder's collet for battery holder is higher, with low costs than original scheme lightweight degree. The scheme does not occupy redundant space on two sides of the frame 10, and facilitates vehicle type expansion. Meanwhile, the bottom support is not limited, and the matching surfaces of the finished automobile and the power battery pack 30 are arranged on the side wall, but not in the Z direction of the finished automobile. The structure can greatly provide more Z-direction space for the power battery pack 30, so that the electric quantity of the subsequent power battery pack 30 can be freely expanded.

Further, in order to achieve a better fixing effect with the battery pack 30, the frame 10 includes two longitudinal beams 11, the upper ends of the mounting brackets 20 are respectively fixed to the two longitudinal beams 11, and the lower ends of the mounting brackets 20 are respectively formed with a mounting position below one of the longitudinal beams 11, the mounting position is used for being connected to a side edge of the battery pack 30 extending along the X direction of the frame 10, so as to fix the battery pack 30 below the frame 10.

As shown in fig. 1 and 2, in order to increase the connection strength of the bracket and reduce the weight of the bracket, the mounting bracket 20 includes a plurality of bracket units 21 respectively arranged on the two longitudinal beams 11 at intervals, the bracket units 21 include first connecting sections 211 extending along the Z direction of the vehicle frame 10 and second connecting sections 212 connected to the ends of the first connecting sections 211 and extending along the Y direction of the vehicle frame, at least a portion of one first connecting section 211 is connected to one longitudinal beam 11, and one second connecting section 212 is used to connect to the side edge of the battery pack 30. Wherein a plurality of the bracket units 21 are arranged at intervals along the X direction of the vehicle frame 10 on one of the side members 11. The number of the bracket units 21 may be two or more, for example, the number of the mounting brackets 20 is 2, 3, 4, 6 or 8, according to the weight requirement of the large power battery to be carried. The spacing between the mounting brackets 20 can be adjusted according to the attachment mounting, i.e. the attachment is arranged on the longitudinal beam 11 and between at least two mounting brackets 20. Of course, the plurality of rack units 21 may be provided as an integral mounting rack 20, such as a bifurcated type, i.e. a three-way bifurcated type, a four-way bifurcated type, etc.

Referring to fig. 3 to 5, in order to further improve the strength of the rack unit 21, ensure stable connection of the rack unit 21, and reduce the cost of the rack unit 21, the rack unit 21 further includes a first reinforcing plate 22, and the first reinforcing plate 22 is connected to the first connecting section 211.

In an embodiment, the first reinforcing plate 22 is disposed between the longitudinal beam 11 and the first connecting section 211, and the first reinforcing plate 22 is attached to the first connecting section 211.

In another embodiment, the first reinforcing plate 22 is disposed on a side away from the side member 11 and is attached to the first connecting section 211.

In the present embodiment, in order to enhance the strength and reduce the weight, the first reinforcing plate 22 is disposed on the side of the first connecting section 211 facing away from the side member 11. The first reinforcing plate 22 and the first connection section 211 have a cavity therebetween.

Specifically, in order to facilitate the connection and the detachment of the bracket unit 21 and the side member 11, a plurality of mounting holes 221 are correspondingly formed through the first connecting section 211 and the first reinforcing plate 22, and a fastener is connected with the side member 11 of the frame 10 through the plurality of mounting holes 221.

The fasteners may be bolts, rivets, or the like.

Referring to fig. 3 to 5, in order to ensure the strength and the torsion of the first reinforcing plate 22 and the first connecting section 211, the bracket unit 21 further includes a plurality of column tubes 23, one column tube 23 correspondingly penetrates through one mounting hole 221, the column tube 23 is located between the first reinforcing plate 22 and the first connecting section 211, and the fastener penetrates through the column tube 23. The support unit 21 has high torsional strength due to the arrangement of the column tube 23, and during installation, the fastener penetrates through the column tube 23, so that the fastener can be prevented from being clamped between the front mounting hole 221 and the rear mounting hole 221, and the efficiency in the assembling process is improved.

Further, in order to ensure the strength of the connection portion of the holder unit 21 and the battery pack 30, the holder unit 21 further includes a second reinforcing plate 24 connected to the second connection section 212.

In order to facilitate the installation and connection of the second reinforcing plate 24, the second reinforcing plate 24 is disposed on a side of the second connecting section 212 facing away from the first connecting section 211. The second reinforcing plate 24 is disposed on the same side of the first reinforcing plate 22, which may cause interference, and the second reinforcing plate 24 is disposed on the other side, on one hand, the second reinforcing plate 24 may protect the second connecting section 212; and on the other hand, to facilitate adjustment of the second reinforcement plate 24.

In one embodiment, the second stiffener 24 is stacked with the second connecting section 212.

In another embodiment, the second reinforcing plate 24 and the second connecting section 212 are disposed in a cavity.

In order to facilitate the connection and the disconnection of the bracket unit 21 and the battery pack 30, the second connecting section 212 and the second reinforcing plate 24 are provided with fixing holes 213, and the fixing holes 213 are used for fasteners to connect with the battery pack 30. Specifically, the second connecting section 212 and the second reinforcing plate 24 are respectively provided with at least two fixing holes 213 penetrating along the X direction of the frame 10, so that the fasteners can be connected with the battery pack 30.

The vehicle 100 is equipped with a heavy-weight power battery pack 30, and when the vehicle is turning, the vehicle is likely to twist, and the strength of the second connection section 212 is improved in order to avoid deformation between the fixing holes 213, and the bracket unit 21 further includes a third reinforcing plate 25, and the third reinforcing plate 25 is connected to all of the first connection section 211, the second connection section 212, and the first reinforcing plate 22.

In the light-medium vehicle 100, the third reinforcing plate 25 may be eliminated because the battery pack 30 is relatively light in weight.

Referring to fig. 5, the first reinforcing plate 22 has a predetermined height H from the bottom of the second connecting section 212 to the second connecting section 212 for easy operation when the second connecting section 212 is connected to the battery pack 30 ₁ The preset height H ₁ Greater than the length of the fastener to be assembled. Therefore, the fastener can be installed in both an upper penetrating mode and a lower penetrating mode, and the fastener can be conveniently twisted by the workpiece due to the preset height.

The bracket unit 21 of the mounting bracket 20 provided by the utility model comprises a first connecting section 211 and a second connecting section 212 which form an L shape, and the section is U-shaped; the section is the U type is inlayed to first reinforcing plate 22, establishes at the support originally internally, and the two vacuole formation to offer and the cooperation mounting hole 221 of longeron 11, wear to be equipped with column pipe 23 and connect, improve anti torsional strength, the cladding of second reinforcing plate 24 is at second linkage segment 212, strengthens the intensity of second linkage segment 212, and the material of support unit 21 can adopt well high strength structural steel. The third reinforcing plate 25 shown may be eliminated or retained depending on the size of the battery pack 30. The bracket unit 21 has few design structural components and few welding areas, reduces processing deformation and can ensure higher precision. In order to improve and facilitate the installation with the longitudinal beam 11, the installation hole 221 includes a main positioning hole 622 and a plurality of auxiliary positioning holes 622, the main positioning hole 622 and the auxiliary positioning holes 622 are different in size and/or shape, and the installation of the rack unit 21 can be facilitated by the main positioning hole 622 and the plurality of auxiliary positioning holes 622 during the installation.

Under the whole vehicle arrangement, a plurality of bracket units 21 are fixed on the outer sides of two longitudinal beams 11 of the vehicle frame 10 through a plurality of fasteners. Is positioned in the X direction (front-back direction) of the whole vehicle and is positioned between the two plate spring lifting lugs 80. The space outside the longitudinal beam 11 of the whole vehicle frame 10 is not occupied, so that the arrangement of other accessories of the whole vehicle is convenient, and the vehicle type expansion is convenient; the electric quantity of the battery pack 30 arranged below the frame 10 can be expanded in the Z direction (height direction) of the whole vehicle because the battery pack is not limited by a battery bracket; compared with the scheme that the existing mounting frame carries the battery pack 30, the bracket unit 21 has fewer accessory structures and light weight, and is convenient for lightening the whole vehicle; the battery pack 30 is arranged below the frame 10, so that the condition of loading the whole vehicle is not influenced, the battery pack can be freely disassembled and assembled in the Z direction, and the automatic battery replacement can be conveniently realized by subsequent expansion.

The above describes the structure and the arrangement position of the bracket unit 21 and the function of the bracket unit 21, and the present application also improves the battery frame 50 of the battery pack 30 so as to improve the torsional rigidity of the battery frame 50 itself and enable the battery frame 50 to have the bearing capacity, so that the battery frame can be connected with the bracket unit 21 and arranged below the frame 10, and the space on both sides of the frame 10 is saved. Of course, the battery pack 30 does not need to adopt the solution of the present application, as described above, as long as the overall strength and torsion of the battery frame 50 are enhanced to meet the requirements of the vehicle 100, and the implementation manner is various, such as changing the material, increasing the strength of the accessory reinforcing frame, and the like.

Referring to fig. 1 to 3 and 6, a battery frame 50 is described below, the battery frame 50 including:

the battery module fixing structure comprises a fixing support 60, a surrounding frame 51 and a bottom frame 52, wherein the surrounding frame 51 and the bottom frame 52 are surrounded to form an accommodating cavity 53 for accommodating a battery module, one end of the fixing support 60 is connected with the surrounding frame, the other end of the fixing support 60 is provided with a fixing position on the outer side of the surrounding frame 51, and the fixing position is used for being connected with an installation position, so that the battery frame 50 is fixed below a vehicle 100.

One end of the fixed support 60 is connected with the surrounding frame 51, the other end of the fixed support 60 is arranged at a fixed position outside the surrounding frame 51, a bottom support does not need to be arranged to bear and lift the bottom frame 52, and compared with the original scheme, the light weight degree is higher and the cost is low. The scheme does not occupy redundant spaces on two sides of the frame, and facilitates vehicle type expansion. And meanwhile, the limit of a bottom support bracket is avoided, and the matching surfaces of the finished automobile and the power battery pack are on the side wall instead of the Z direction of the finished automobile. The structure can greatly provide more Z-direction spaces for the power battery pack, so that the electric quantity of the subsequent power battery pack can be freely expanded.

In the present embodiment, the battery frame 50 meets the torsional rigidity requirement of the vehicle by forming a plurality of reinforcement cavities 54 in each of the surrounding frame 51 and the bottom frame 52, and specifically, the surrounding frame 51 and the bottom frame 52 are integrally formed by extrusion.

The utility model discloses technical scheme is through adopting fixed bolster 60 and enclosing frame 51 and underframe 52, enclose frame 51 with underframe 52 encloses to close and is formed with the chamber 53 that holds that is used for the battery module to settle, enclose frame 51 with all be formed with a plurality of enhancement chambeies 54 in the underframe 52, fixed bolster 60 one end with it is connected to enclose frame 51, fixed bolster 60 the other end in it is formed with fixed position to enclose the frame 51 outside, fixed position be used for with the installation phase is connected, and will battery frame 50 fixes the below at vehicle 100. The surrounding frame 51 and the bottom frame 52 of the battery frame 50 are designed in a bearing type, wherein the surrounding frame 51 and the bottom frame 52 are made of aluminum alloy sections with extrusion molding structures, so that the strength is met, and the light weight is facilitated; in other embodiments, the reinforcement cavity 54 may be formed by stamping, or other materials may be used, as long as the torsional rigidity of the battery frame 50 itself is improved to meet the requirement. The enclosure frame 51 and the bottom frame 52 are internally provided with a plurality of reinforcing cavities 54 of grid type, so as to improve the torsional rigidity of the battery pack 30, enable the battery frame 50 to have bearing capacity, enable the enclosure frame 51 and the bottom frame 52 to be of a multi-cavity type extrusion-molded aluminum alloy tailor-welded framework structure, and enable the enclosure frame 51 and the bottom frame 52 to be integrally molded. The fixing bracket 60 is arranged according to the installation position on the frame 10, and the fixing bracket 60 can be arranged on the two enclosure frames 51 of the battery, namely front and back or left and right or front and back and left and right; the battery frame 50 is arranged below the frame 10, that is, two cross beams in the front-back direction of the frame 10 are connected with the battery frame 50, or two longitudinal beams 11 of the frame 10 are connected with the battery frame 50 left and right, and the fixing bracket 60 can be integrally arranged with the battery frame 50 or arranged in a split manner, so that the power battery pack 30 combined with the battery frame 50 is arranged below the frame 10, and a bottom bracket support is not required to be arranged for carrying and lifting, thereby being convenient for light weight.

Specifically, the enclosure frame 51 includes two side frames 55 extending along the longitudinal direction thereof, the fixing bracket 60 is disposed on the outer sides of the side frames 55, the two side frames 55 extending along the longitudinal direction thereof of the enclosure frame 51, i.e., along the X direction of the vehicle frame 10, and the fixing bracket 60 is disposed on the outer sides of the side frames 55. The battery pack 30 composed of the battery frames 50 according to the above scheme can be installed below the vehicle frame 10 through the battery frames 50, so that redundant spaces on two sides of the vehicle 100 are not occupied, and the vehicle type expansion is facilitated. The battery pack 30 is easy to maintain and can be freely detached. The matching surfaces of the whole vehicle and the power battery pack 30 are on the side wall, but not in the Z direction of the whole vehicle. The structure can greatly provide more Z-direction space for the power battery pack 30, so that the electric quantity of the subsequent power battery pack 30 can be freely expanded.

Referring to fig. 3 to 6, in order to facilitate connection with the mounting location on vehicle frame 10, fixing bracket 60 includes fixing bracket 60 extending along the X direction of vehicle frame 10, that is, fixing bracket 60 extends along the same direction as side frame 55, fixing bracket 60 includes fixing section 62 extending along the height direction of enclosure frame 51, that is, along the Z direction of vehicle frame 10, and mounting section 63 extending along the width direction of enclosure frame, that is, along the Y direction of vehicle frame 10, fixing section 62 is connected with enclosure frame 51, and the mounting section 63 is formed with the fixing location.

In the present embodiment, the mounting position is defined for the rack unit 21, and the fixing rack 60 has an "L" shape, so as to facilitate the connection between the rack unit 21 and the fixing rack 60. In the case that there are a plurality of rack units 21, the lower ends of the plurality of rack units 21 are connected to a plurality of fixing positions on the fixing bracket 60, such as bolts, rivets, etc.

In other embodiments, the mounting location may be defined by the frame 10 itself or other auxiliary components.

On the premise of satisfying the connection, in order to reduce the weight of the fixing bracket 60, the plurality of mounting sections 63 are arranged on the fixing section 62 along the extending direction of the fixing bracket 60, and one of the mounting sections 63 is formed with one of the fixing positions. Namely, the fixing section 62 extends along the X direction, and the mounting sections 63 are spaced from each other corresponding to the mounting positions, so as to be conveniently matched with the bracket unit 21.

In other embodiments, the mounting section 63 may extend integrally along the extending direction of the fixing bracket 60.

In order to facilitate the stable connection with the bracket unit 21, a connection hole 631 is formed in the fixing position, and a fastening member is connected to the mounting position through the connection hole 631.

Specifically, at least two connection holes 631 on the fixing positions are arranged along the X direction, the connection holes 631 on the fixing positions are movably matched with the fixing holes 213 of the bracket unit 21 to form a circular hole and an elongated circular hole, and the mounting bracket 20 is connected with the fixing bracket 60 and has a movement amount in the Y direction of the vehicle frame 10 to absorb tolerance in the Y direction (width direction) of the vehicle frame 10.

Referring to fig. 4, further, in order to better absorb the tolerance along the Y direction when the battery frame 50 is fixed under the vehicle frame 10, a reserved gap is provided between the fixing bracket 60 and the bracket unit 21 along the Y direction of the vehicle frame 10, and the distance of the reserved gap H2 is 5mm to 10mm. On one hand, the battery frame 50 is convenient to be connected with the bracket unit 21, and on the other hand, the battery frame 50 can have a certain movement amount, so that the risk of torsional fracture is reduced.

In order to reduce the weight of the fixing bracket 60, the fixing segment 62 is provided with a lightening hole 621.

In this embodiment, a plurality of weight-reducing holes 621 are arranged at intervals along the X direction of the frame 10, and the weight-reducing holes 621 are in an oval shape, so as to reduce the weight while ensuring the strength of the fixing bracket 60.

In other embodiments, the lightening holes 621 may be one piece, and may be frame, circular, etc.

In order to facilitate the assembly and disassembly of the fixing bracket 60, a plurality of positioning holes 622 are disposed on the fixing section 62, the positioning holes 622 and the lightening holes 621 are disposed at intervals, and the positioning holes 622 are used for fasteners to pass through and connect with the surrounding frame 51.

In other embodiments, riveting or welding may also be used for the connection.

Specifically, for convenience of connecting the fixing bracket 60 with the battery frame 50, the positioning hole 622 includes at least one main hole and a plurality of auxiliary holes, and the main hole and the auxiliary holes are spaced apart from each other. A main positioning hole 622 and an auxiliary positioning hole 622 are provided on the fixing bracket 60 of the fixing bracket 60 so that the assembly of the fixing bracket 60 on the battery frame 50 can be accurately positioned.

Referring to fig. 6 to 11, in order to reinforce the strength of the fixing bracket 60 and to make the fixing bracket 60 have high torsion strength. Referring to fig. 6 and 7, the mounting bracket 20 further includes a reinforcing structure 70, and the reinforcing structure 70 is disposed on the fixing bracket 60. In one embodiment, the reinforcing structure 70 includes a first side reinforcing plate 71, the first reinforcing plate 22 is disposed at a fixing position and connected to the fixing bracket 60, the first reinforcing plate 22 faces the mounting position to form a mounting groove 711, a bottom wall of the mounting groove 711 corresponds to the connecting hole 631 and is provided with an avoiding hole, and two side walls of the mounting groove 711 are disposed at two opposite sides of the connecting hole 631. The reinforcing structure 70 is arranged on the fixing support 60, the section of the fixing support 60 is in a U shape, the fixing support 60 is an integral piece, the fixing support 60 comprises a fixing section 62 and an installation section 63 which are in an L shape, the section of the first side reinforcing plate 71 is similar to the shape of the fixing support 60, the first side reinforcing plate 71 is embedded into the fixing support 60, and an installation position is provided with a plurality of the first side reinforcing plate 71, and the installation groove 711 of the first side reinforcing plate 71 can also play a role in positioning when the support unit 21 is connected, so that the connection is facilitated.

Referring to fig. 8 and 9, in another embodiment, the reinforcing structure 70 includes two second side reinforcing plates 72 and a first vertical reinforcing plate 74, the two second side reinforcing plates 72 are both disposed at the fixing position and respectively located at two sides of the connecting hole 631, one side of the second side reinforcing plate 72 penetrates to the back side of the fixing section 62, the other side of the second side reinforcing plate 72 is connected to the mounting section 63, the first vertical reinforcing plate 74 is disposed at the back side of the mounting bracket 20, and the first vertical reinforcing plate 74 wraps the fixing section 62 and a part of the mounting section 63. The structure of the fixing bracket 60 of the scheme keeps consistent and becomes a combination mode of a stronger part. The second side reinforcing plate 72 penetrates to the back side through the opening part of the fixing support 60, the cross section of the first vertical reinforcing plate 74 is in a U shape and is positioned on one side, close to the longitudinal beam 11, of the fixing support 60 and wraps the bearing area of the fixing support 60, the second side reinforcing plate 72 is positioned on two sides of the connecting hole 631, and the positioning effect and the connection convenience can be achieved when the support units 21 are connected.

Referring to fig. 10 and 11, in another embodiment, the reinforcing structure 70 includes two third side reinforcing plates 73 and a second vertical reinforcing plate 75, the second vertical reinforcing plate 75 is disposed at the fixed position, the second vertical reinforcing plate 75 includes a vertical section 751 and a bent section 752, the vertical section 751 is connected to the fixed section 62, a portion of an end of the vertical section 751 is bent to penetrate through a back side of the fixed section 62, the bent section 752 is connected to the mounting section 63, the bent section 752 is provided with an avoiding hole corresponding to the connecting hole 631, and the two third side reinforcing plates 73 are disposed at the fixed position and are respectively located at two opposite sides of the second vertical reinforcing plate 75. In this embodiment, the structure of the fixing bracket 60 is kept consistent, and the combination mode is changed into a stronger one. The second vertical reinforcing plate 75 includes a vertical section 751 and a bending section 752, the vertical section 751 is bent and penetrated to the back side through the opening of the fixing bracket 60, the vertical section 751 and the bending section 752 are in a "Z" shape, and the bending section 752 is located in the main bearing area of the fixing bracket 60. Two of the third side reinforcing plates 73 are welded between the fixing bracket 60 and the second vertical reinforcing plate 75 as reinforcing ribs, and the two third side reinforcing plates 73 can also play a role in positioning when the bracket unit 21 is connected, thereby facilitating the connection.

Referring to fig. 1 to 3, the above describes the improvement of the battery frame 50 and the fixing bracket 60, so that the battery frame 50 can be arranged below the vehicle frame 10, and the conventional solution of hanging the battery pack 30 on the side requires accessories such as a communication harness, a power harness and a high-voltage box between the left and right power battery packs 30, and has a low integration degree. The present embodiment further provides an integrated battery pack 30, wherein the wiring harness is integrated in the battery pack 30, specifically, the battery pack 30 includes a cover plate 40, a battery module, and the above-mentioned battery frame 50, and the specific structure of the battery frame 50 refers to the above-mentioned embodiments, because the battery pack 30 adopts all the technical solutions of all the above-mentioned embodiments, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are achieved, and no further description is given here. The battery module is mounted in the receiving cavity 53 of the battery frame 50, and the cover plate 40 is connected to the battery frame 50 and covers the battery module. The battery module comprises a battery cell group and a battery system, such as a thermal management system (HTS), a Battery Management System (BMS), an electrical system, a structural member and the like.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A frame assembly, comprising:

the frame comprises two longitudinal beams which are oppositely arranged; and

the upper end of the mounting bracket is respectively fixed with the two longitudinal beams, the lower end of the mounting bracket is provided with a mounting position, the mounting position is used for being connected with the side edge of a battery pack, the battery pack is fixed below the frame, and the battery pack is located between the two longitudinal beams.

2. A frame assembly according to claim 1, wherein said mounting bracket includes a plurality of bracket units spaced apart on each of said side rails, said bracket units including first connecting sections extending in a Z-direction of the vehicle frame and second connecting sections connected to ends of said first connecting sections and extending in a Y-direction of the vehicle frame, at least a portion of one of said first connecting sections being connected to one of said side rails and one of said second connecting sections being connected to a side edge of said battery pack.

3. The frame assembly of claim 2, wherein the bracket unit further comprises a first reinforcement plate disposed on a side of the first connector segment facing away from the side rail, the first reinforcement plate being connected to the second connector segment.

4. A frame assembly according to claim 3, wherein a cavity is provided between said first reinforcement plate and said first connector section.

5. A frame assembly according to claim 3, wherein a plurality of mounting holes are correspondingly formed through each of said first connecting section and said first reinforcement plate, and fasteners are inserted through said mounting holes to secure a bracket unit to a side member.

6. The frame assembly of claim 5, wherein said bracket unit further includes a plurality of posts, one of said posts correspondingly extending through one of said mounting holes, said posts being positioned between said first reinforcement plate and said first connector, fasteners extending through said posts for securing one of said bracket unit to one of said side members.

7. A frame assembly according to claim 3, wherein said bracket unit further comprises a second reinforcement plate arranged on a side of said second connection section facing away from said first connection section, said second reinforcement plate being connected to said second connection section.

8. The frame assembly of claim 7, wherein the second connecting section and the second reinforcing plate each have a fastening hole therethrough, the fastening hole being adapted for a fastener to be inserted therethrough to fasten the bracket unit to the battery pack.

9. The frame assembly of claim 8, wherein the first reinforcement plate has a predetermined height H from the bottom of the first reinforcement plate to the second connector section ₁ The preset height H ₁ Is longer than the length of the fastener penetrating through the second connecting section.

10. A frame assembly according to claim 7, wherein said bracket unit further comprises a third reinforcement plate, said third reinforcement plate being connected to each of said first connection section, said second connection section, and said first reinforcement plate.

11. A vehicle, characterized by comprising:

a frame assembly according to any one of claims 1 to 10; and