CN113972423A - Power battery package and automobile body integrated configuration and vehicle of vehicle - Google Patents
Power battery package and automobile body integrated configuration and vehicle of vehicle Download PDFInfo
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- CN113972423A CN113972423A CN202111215472.5A CN202111215472A CN113972423A CN 113972423 A CN113972423 A CN 113972423A CN 202111215472 A CN202111215472 A CN 202111215472A CN 113972423 A CN113972423 A CN 113972423A
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- 229910052751 metal Inorganic materials 0.000 claims description 6
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- 238000010009 beating Methods 0.000 claims description 2
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- 238000007789 sealing Methods 0.000 description 6
- 230000010354 integration Effects 0.000 description 4
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The application relates to a power battery pack and vehicle body integrated structure of a vehicle and the vehicle. The vehicle body integrated structure comprises a floor frame provided with an opening and a power battery pack arranged on the floor frame; the power battery pack comprises a battery box body and a battery cell arranged in the battery box body; the battery box body comprises an upper box body and a lower box body which are arranged along the height direction of the vehicle, the battery cell is contained in a containing space which is defined by the upper box body and the lower box body together, the upper box body and the lower box body are fixed relatively, the upper box body comprises a top plate, the lower box body comprises a bottom plate, the battery cell is arranged between the top plate and the bottom plate and is fixedly installed on the top plate, and the top plate is installed at the opening of the floor frame to form the vehicle body floor of the vehicle. The scheme provided by the embodiment can reduce the structural redundancy between the battery box body and the vehicle body and reduce the weight of the whole vehicle.
Description
Technical Field
The application relates to a vehicle technology, in particular to a power battery pack and vehicle body integrated structure of a vehicle and the vehicle.
Background
With the development of new energy technology, electric vehicles are gradually popularized, and the self weight of the electric vehicle is a main factor influencing the endurance mileage of the electric vehicle, so that the light weight of the electric vehicle is gradually concerned by more and more automobile enterprises and users.
In the related art, the power battery pack of the electric automobile generally comprises an upper shell and a lower shell which are integrated to form a closed battery box structure, and then the battery box structure is used as an independent whole to be installed on the whole automobile as an accessory of the whole automobile, so that structural redundancy exists between the battery box and the automobile body.
Disclosure of Invention
In order to solve or partially solve the problems existing in the related art, the application provides a power battery pack and vehicle body integrated structure and a vehicle, which can reduce the structural redundancy between a battery box body and a vehicle body, thereby reducing the weight and the cost of the whole vehicle.
The present application provides in a first aspect a power battery pack and body integrated structure of a vehicle, including:
the power battery pack comprises a floor frame provided with an opening and a power battery pack arranged on the floor frame;
the power battery pack comprises a battery box body and a battery cell arranged in the battery box body;
the battery box body comprises an upper box body and a lower box body which are arranged along the height direction of the vehicle, the battery cell is contained in a containing space which is defined by the upper box body and the lower box body together, the upper box body and the lower box body are fixed relatively, the upper box body comprises a top plate, the lower box body comprises a bottom plate, the battery cell is arranged between the top plate and the bottom plate and is fixedly installed on the top plate, and the top plate is installed at the opening of the floor frame to form the vehicle body floor of the vehicle.
In one embodiment, the top plate extends at least partially into the opening in the height direction to abut the floor frame.
In one embodiment, a side of the top plate facing away from the battery cell is provided with a mounting projection for mounting a passenger compartment interior component of the vehicle.
In one embodiment, the battery cell is bonded and fixed to the top plate; or
The battery cell is fixedly installed on the top plate through a bolt.
In one embodiment, the lower box body and the upper box body are fixedly mounted on the floor frame together through the same fastener; or
The lower box body is hermetically connected with the upper box body; or
The lower box body and the upper box body are respectively connected with the floor frame.
In one embodiment, the battery cell and the lower box body are not directly installed and connected; or,
the battery cell is not in contact with the lower box body and is not supported by the lower box body; or,
the supporting force of the lower box body to the battery cell is smaller than the pulling force of the upper box body to the battery cell.
In one embodiment, the upper box body is provided with a flange extending from the peripheral wall along the horizontal direction, and the flange is provided with a plurality of connecting parts arranged at intervals;
the floor frame is including being located the installation roof beam of the width direction both sides of vehicle, form between the installation roof beam of both sides the opening, the bottom of installation roof beam is formed with the connection face, it is in to go up the box connecting portion department through fastener fixed mounting in floor frame, connecting portion paste tightly in connect the face.
In one embodiment, the floor frame is a sheet metal tailor-welded molded part, a profile molded part, a composite molded part or a cast aluminum molded part; and/or the presence of a gas in the gas,
the lower box body is a sheet metal forming part or a composite material forming part; and/or the presence of a gas in the gas,
go up the box and be section bar formed part, cast aluminium formed part, panel beating formed part, or combined material formed part.
In one embodiment, the upper case and the lower case are made of different materials, and the material strength of the upper case is higher than that of the lower case; and/or the presence of a gas in the gas,
the structural strength of going up the box is higher than the structural strength of box down includes: the thickness of the top plate is larger than that of the bottom plate, and/or the top plate is provided with a reinforcing structure.
The second aspect of the application provides a vehicle, which comprises the power battery pack and vehicle body integrated structure.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
in some embodiments, the battery box is disposed at the opening of the floor frame, and the top plate of the battery box forms a floor of the vehicle body. By the arrangement, a vehicle body floor does not need to be arranged outside the top plate of the battery box body, so that structural redundancy between the top plate of the battery box body and the vehicle body floor is avoided. In addition, the battery box body is directly fixed with the floor frame of the vehicle body, a longitudinal beam or a transverse beam used for installing the battery box body is not required to be additionally arranged outside the floor frame, and the structural redundancy between the battery box body and the longitudinal and transverse beams of the vehicle body is avoided while the connection strength between the battery box body and the vehicle body is ensured. Therefore, the embodiment of the application can reduce the structural redundancy between the battery box body and the vehicle body, thereby reducing the weight and the cost of the whole vehicle.
In addition, the roof of the battery box body forms the floor of the vehicle body, so that the power battery pack is used as a part of a whole vehicle structural component, and the integration level of the power battery pack and the whole vehicle structure can be improved. And, through reducing the structure redundancy between battery box and the automobile body, can practice thrift the ascending space of vehicle direction of height, under the unchangeable condition of whole car size, can increase the inside accommodation space of power battery package, arrange the electric core of bigger capacity to increase vehicle continuation of the journey mileage.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
Fig. 1 is an exploded view of a power battery pack shown in an embodiment of the present application;
FIG. 2 is a schematic diagram of a power battery pack shown in an embodiment of the present application before being assembled with a vehicle body;
fig. 3 is a schematic diagram of the power battery pack shown in the embodiment of the present application after being assembled with a vehicle body.
Reference numerals: a power battery pack 100; an upper case 110; a lower case 120; a flange 113; a connecting portion 114; a battery cell 130; a top plate 111; a bottom plate 121; a mounting boss 112; a vehicle body 200; a floor frame 210; a mounting beam 221; an opening 222.
Detailed Description
Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While embodiments of the present application are illustrated in the accompanying drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections as well as removable connections or combinations; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 3 together, an embodiment of the present application provides an integrated structure of a power battery pack and a vehicle body of a vehicle, which includes a floor frame 210 having an opening 222, and a power battery pack 100 mounted on the floor frame 210; the power battery pack 100 includes a battery box and a battery cell 130 disposed in the battery box; the battery box body comprises an upper box body 110 and a lower box body 120 which are arranged along the height direction of the vehicle, a battery cell 130 is accommodated in an accommodating space which is defined by the upper box body 110 and the lower box body 120 together, the upper box body 110 and the lower box body 120 are fixed relative to each other, the upper box body 110 comprises a top plate 111, the lower box body 120 comprises a bottom plate 121, the battery cell 130 is arranged between the top plate 111 and the bottom plate 121 and is fixedly installed on the top plate 111, and the top plate 111 is installed at an opening 222 of a floor frame 210 so as to form a vehicle body floor of the vehicle.
In the present embodiment, the battery case is provided in the opening 222 of the floor frame 210, and the top plate 111 of the battery case 110 constitutes the floor of the vehicle body 200. By the arrangement, a vehicle body floor does not need to be arranged outside the top plate of the battery box body, so that structural redundancy between the top plate of the battery box body and the vehicle body floor is avoided. In addition, the battery box body is directly fixed with the floor frame 210 of the vehicle body, and a longitudinal beam or a cross beam used for installing the battery box body is not required to be additionally arranged outside the floor frame, so that the structural redundancy between the battery box body and the longitudinal and cross beams of the vehicle body is avoided while the connection strength between the battery box body and the vehicle body is ensured. Therefore, the embodiment of the application can reduce the structural redundancy between the battery box body and the vehicle body, thereby reducing the weight and the cost of the whole vehicle.
In addition, the top plate 111 of the battery box body forms the floor of the vehicle body, so that the power battery pack is used as a part of a whole vehicle structural component, and the integration level of the power battery pack and the whole vehicle structure can be improved. And, through reducing the structure redundancy between battery box and the automobile body, can practice thrift the ascending space of vehicle direction of height, under the unchangeable condition of whole car size, can increase the inside accommodation space of power battery package, arrange the electric core of bigger capacity to increase vehicle continuation of the journey mileage.
In some embodiments, the battery cell 130 is fixed to the top plate 111 in an adhesive manner, so that not only is the stability better, but also the use of connecting parts is reduced, and further the weight of the whole vehicle is reduced.
In some implementations, the cell may be fixedly mounted to the top plate 111 by a bolt. It can be understood that the battery cells are fixedly mounted on the top plate 111 by bolts, including the case where the battery cells 130 are fixedly mounted on the top plate 111 by bolts after being assembled into a battery module. Due to the arrangement, the battery cell and the top plate 111 are detachably connected, so that the battery cell 130 is convenient to overhaul and maintain after being detached from the battery cell 130.
In some embodiments, there is no direct mounting connection between the battery cell 130 and the lower case 120. In this way, the positioning relation of the battery cell 130 relative to the vehicle body is not affected after the lower box body 120 is detached, and the battery cell 130 is convenient to quickly overhaul and replace the lower box body 120.
In some embodiments, there is no contact between the battery cell 130 and the lower case 120 without being supported by the lower case 120. After setting up like this, electric core 130 and upper box 110 have promoted the holistic structural stability of automobile body as a part of automobile body major structure, in addition, when lower box 120 receives external force and assaults, there is the buffering between lower box 120 and the electric core 130, and the impact force does not directly transmit to electric core 130, and the deformation that lower box 120 produced can not influence electric core 130 and upper box 110's being connected, consequently can not influence electric core 130's electrical connection yet, and then has promoted the security of vehicle.
In some embodiments, the supporting force of the lower box 120 on the battery cell 130 is smaller than the pulling force of the upper box 110 on the battery cell 130, so that the gravity of the battery cell 130 is mainly borne by the upper box 110, and the lower box 120 assists in supporting the battery cell 130, thereby preventing the top plate 11 from being deformed when being subjected to a large load.
The upper case 110 may be provided therein with an electrical device and a cooling device, the electrical device may include, for example, a conductive member for connecting the plurality of battery cells 130, a battery monitoring circuit, and the like, and the cooling device may include, for example, a liquid cooling pipeline and a liquid cooling plate. The electric device, the cooling device and the battery cell can be fixedly arranged on the floor frame through the upper box body after being preassembled on the upper box body. In this way, the upper case 110, the battery core 130, the electrical device, and the cooling device inside constitute a main structure of the power battery pack 100. The lower case 120 can be used as a sealing cover to cover the upper case 110 from bottom to top, which facilitates the integrated installation of the power battery pack assembly on the vehicle body, and moreover, when the lower case 120 is impacted by external force at the bottom of the vehicle body, the influence on the performance of the power battery pack 100 can be reduced, and the stability of the overall performance of the power battery pack 100 is ensured.
Moreover, according to the technical solution of the present embodiment, the integration level of the power battery pack 100 and the vehicle body 200 can be improved under the condition that the structure of the power battery pack 100 and the structure of the vehicle body 200 in the related art are slightly modified, and the existing structure of the vehicle body and the structure of the power battery pack 100 can be fully utilized, so that the embodiment of the present application can be implemented under the condition that the existing process and the production line are slightly changed.
In some embodiments, the upper case 110 and the lower case 120 are fixedly mounted to the floor frame 210 together by the same fastener (e.g., bolt, screw, pin, etc.). Due to the arrangement, the upper box body 110 and the lower box body 120 can be disassembled and assembled at the same time through disassembling and assembling the same fastening piece, so that the disassembly and the assembly are easier, and the maintenance is more convenient.
It is understood that in other embodiments, the lower case 120 is hermetically connected to the upper case 110; alternatively, the lower case 120 and the upper case 110 are connected to the floor frame, respectively.
In some embodiments, the top plate 111 of the upper box 110 at least partially extends into the opening 222 and abuts against the floor frame 210 along the height direction of the vehicle body 200, so that the height space of the vehicle can be fully utilized, the structure is more compact, the space utilization rate of the whole vehicle is improved, and the floor frame 210 has a position limiting effect on the top plate 111 in the horizontal direction due to the fact that the top plate 111 abuts against the floor frame 210 in the opening 22, and the stability of connection and matching between the top plate and the floor frame is improved.
In one embodiment, the upper case 110 has a flange 113 extending horizontally from the outer peripheral wall, and the flange 113 is provided with a plurality of connecting portions 114 (e.g., connecting holes or slots) arranged at intervals; the floor frame 210 includes mounting beams 221 disposed on both sides in the width direction of the vehicle, an opening 222 is formed between the mounting beams 221 on both sides, a connection surface (not shown) is formed at the bottom of the mounting beams 221, the upper case 110 is fixedly mounted on the floor frame 210 at the connection portion by a fastener, and the connection portion 114 of the flange is attached to the connection surface, so that the sealing effect of the battery case 11 on the passenger compartment can be ensured. It will be appreciated that in some embodiments, the connection portion 114 and the connection surface may be sealed by a sealing member or sealant, which may improve the sealing of the passenger compartment.
In some embodiments, the connection manner between the connection portion 114 and the connection surface may be a screw joint or a rivet joint, and the embodiment is not particularly limited.
In one of the embodiments, the roof panel 111 is provided with a reinforcement beam 13 extending between both sides in the width direction of the vehicle; the reinforcing beam 13 may be disposed on a side of the top plate 111 facing away from the cell 130. By providing the reinforcement beam 13, the roof panel 111 has better load bearing performance as a structural member of the vehicle body. In addition, the provision of the reinforcing beam 13 improves the structural strength of the roof panel 111 on both sides in the vehicle width direction, and when the vehicle is subjected to side impact, the reinforcing beam 13 can provide the vehicle with resistance in the width direction, thereby reducing the risk of damage to the battery box and the vehicle body 200.
In some embodiments, the side of the top plate 12 facing away from the cell is provided with at least one mounting projection 14 for mounting components in the passenger compartment. By providing the mounting protrusions 112 on the top plate 111, components (such as seats, carpets, or wire harnesses) in the passenger compartment can be directly fixed to the top plate 111, the structure of the vehicle body 200 is simplified, the number of vehicle body structural components is reduced, and the weight of the entire vehicle is reduced.
In some embodiments, the passenger compartment interior components include at least seat components, and the mounting projections 112 include at least seat mounting beams 221. In some embodiments, the mounting protrusion 112 may be integrally formed with the top plate 111, or may be fixed to the top plate 111 by welding or assembling.
In some embodiments, the top plate 111 may further be provided with a mounting protrusion 112 for fixing a carpet component and/or a wiring harness component in the passenger compartment, and it is understood that the present embodiment is not limited to the structure and type of the mounting protrusion 112 provided on the top plate 111.
In some embodiments, the mounting protrusion 112 may be disposed on the reinforcing beam 13 of the top plate 111, and due to the reinforcing effect of the reinforcing beam 13, the stability of the mounting protrusion 112 is better, so that the mounting stability of the cabin interior component may be improved, and the deformation caused by the stress concentration of the top plate 111 when the component (e.g., a seat) is subjected to a large external force may also be avoided, so that the stability of the power battery pack 100 is improved while the stable mounting of the component is realized.
In some embodiments, to further improve the structural strength and load bearing capacity of the top plate 111, the upper box body and the lower box body may be made of different materials, and the material strength of the upper box body is higher than that of the lower box body; alternatively, the structural strength of the upper case 111 is higher than that of the lower case 121. In one implementation, the thickness of the top plate 111 can be set to be larger than that of the bottom plate 121, and a reinforcing structure can be formed on the top plate 111, so that a larger load can be borne, deformation caused by external force is avoided, and meanwhile, the cost can be controlled because the bottom plate has lower material strength or structural strength.
In some embodiments, the floor frame 210 includes a front mounting portion disposed corresponding to a front passenger compartment of the vehicle body and a rear mounting portion disposed corresponding to a rear passenger compartment of the vehicle body, and front and rear sides of the top plate 111 are disposed corresponding to the front mounting portion and the rear mounting portion, respectively, to form a floor corresponding to the front passenger compartment of the vehicle body and a floor corresponding to the rear passenger compartment of the vehicle body. By the structure, floors in different areas in the vehicle body are all formed by the top plate 111 of the upper box body 110, and the structural consistency and reliability of the whole vehicle are improved.
In some embodiments, the floor frame 210 is a sheet metal tailor welded, profile, composite, or cast aluminum profile. Thus, because the floor frame 210 is an integrally formed structure, the joint part of the floor frame and the battery box body 11 can form a flat plane structure, and the plane structure can be in sealing connection with the flange 113 of the battery box body 11 in a surface contact mode, so that the connection stability is good, and the sealing performance is good.
In some embodiments, the lower case 120 is a profile molding or an aluminum casting molding; or, the upper case 110 is a sheet metal tailor-welded molded part, a composite molded part, or a cast aluminum molded part. Thus, when the lower case 120 and the upper case 110 are coupled to the floor frame 210, not only are the stresses (e.g., the weight of the power battery pack) applied to various portions of the vehicle body more uniform, but also the structural strength of the floor formed by the top plate 111 is better.
The power battery provided by the embodiment of the application is introduced into the vehicle body integrated structure, and correspondingly, the embodiment of the application also provides a vehicle, which comprises the power battery pack and the vehicle body integrated structure provided by the embodiment. It is understood that the vehicle of the embodiment of the present application may be an electric vehicle or a hybrid vehicle.
This power battery package and automobile body integrated configuration includes: a floor frame 210 provided with an opening, and a power battery pack 100 mounted on the floor frame 210; the power battery pack 100 includes a battery box and a battery cell 130 disposed in the battery box; the battery box body comprises an upper box body 110 and a lower box body 120 which are arranged along the height direction of the vehicle, the battery cell 130 is accommodated in an accommodating space which is defined by a bottom plate 121 and the lower box body 120 together, the upper box body 110 and the lower box body 120 are fixed relative to each other, the upper box body 110 comprises a top plate, the lower box body 120 comprises a bottom plate 121, the battery cell 130 is arranged between the top plate 111 and the bottom plate 121 and is fixedly installed on the top plate 111, and the top plate 111 is installed at an opening 222 of a floor frame 210 so as to form a vehicle body floor of the vehicle.
The vehicle provided by the embodiment can reduce the structural redundancy between the battery box body and the vehicle body, thereby reducing the weight and the cost of the whole vehicle and saving the space in the height direction of the vehicle; the power battery pack is used as a part of the whole vehicle structural part, so that the integration level of the power battery pack and the whole vehicle structure can be improved.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required for the application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A power battery pack and vehicle body integrated structure of a vehicle, characterized by comprising:
the power battery pack comprises a floor frame provided with an opening and a power battery pack arranged on the floor frame;
the power battery pack comprises a battery box body and a battery cell arranged in the battery box body;
the battery box body comprises an upper box body and a lower box body which are arranged along the height direction of the vehicle, the battery cell is contained in a containing space which is defined by the upper box body and the lower box body together, the upper box body and the lower box body are fixed relatively, the upper box body comprises a top plate, the lower box body comprises a bottom plate, the battery cell is arranged between the top plate and the bottom plate and is fixedly installed on the top plate, and the top plate is installed at the opening of the floor frame to form the vehicle body floor of the vehicle.
2. The power battery pack and vehicle body integrated structure of claim 1, wherein:
along the height direction, the top plate at least partially extends into the opening to abut against the floor frame.
3. The power battery pack and vehicle body integrated structure of claim 1, wherein:
and one side of the top plate, which is far away from the battery core, is provided with a mounting bulge for mounting a passenger compartment internal component of the vehicle.
4. The power battery pack and vehicle body integrated structure of claim 1, wherein:
the battery cell is fixedly bonded to the top plate; or
The battery cell is fixedly installed on the top plate through a bolt.
5. The power battery pack and vehicle body integrated structure of claim 1, wherein:
the lower box body and the upper box body are fixedly arranged on the floor frame together through the same fastener; or
The lower box body is hermetically connected with the upper box body; or
The lower box body and the upper box body are respectively connected with the floor frame.
6. The power battery pack and vehicle body integrated structure of claim 5, wherein:
the battery cell and the lower box body are not directly installed and connected; or,
the battery cell is not in contact with the lower box body and is not supported by the lower box body; or,
the supporting force of the lower box body to the battery cell is smaller than the pulling force of the upper box body to the battery cell.
7. The power battery pack and vehicle body integrated structure according to any one of claims 1 to 6, characterized in that:
the upper box body is provided with a flange extending from the outer peripheral wall along the horizontal direction, and the flange is provided with a plurality of connecting parts arranged at intervals;
the floor frame is including being located the installation roof beam of the width direction both sides of vehicle, form between the installation roof beam of both sides the opening, the bottom of installation roof beam is formed with the connection face, it is in to go up the box connecting portion department through fastener fixed mounting in floor frame, connecting portion paste tightly in connect the face.
8. The power battery pack and vehicle body integrated structure according to any one of claims 1 to 6, characterized in that:
the floor frame is a sheet metal tailor-welded formed part, a profile formed part, a composite material formed part or a cast aluminum formed part; and/or the presence of a gas in the gas,
the lower box body is a sheet metal forming part or a composite material forming part; and/or the presence of a gas in the gas,
go up the box and be section bar formed part, cast aluminium formed part, panel beating formed part, or combined material formed part.
9. The power battery pack and vehicle body integrated structure according to any one of claims 1 to 6, characterized in that:
the upper box body and the lower box body are made of different materials, and the material strength of the upper box body is higher than that of the lower box body; and/or the presence of a gas in the gas,
the structural strength of going up the box is higher than the structural strength of box down includes: the thickness of the top plate is larger than that of the bottom plate, and/or the top plate is provided with a reinforcing structure.
10. A vehicle, characterized in that: the power battery pack and vehicle body integrated structure comprises the power battery pack as claimed in any one of claims 1 to 9.
Priority Applications (1)
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CN202111215472.5A CN113972423A (en) | 2021-10-19 | 2021-10-19 | Power battery package and automobile body integrated configuration and vehicle of vehicle |
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CN202111215472.5A CN113972423A (en) | 2021-10-19 | 2021-10-19 | Power battery package and automobile body integrated configuration and vehicle of vehicle |
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CN202111215472.5A Pending CN113972423A (en) | 2021-10-19 | 2021-10-19 | Power battery package and automobile body integrated configuration and vehicle of vehicle |
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CN114464939A (en) * | 2022-02-10 | 2022-05-10 | 东风商用车有限公司 | Side-hanging power battery pack and electric truck |
CN114851823A (en) * | 2022-05-24 | 2022-08-05 | 中国第一汽车股份有限公司 | Power battery assembly integrated with vehicle body floor, electric vehicle and design method |
CN116235356A (en) * | 2022-06-29 | 2023-06-06 | 宁德时代新能源科技股份有限公司 | Box, battery and electrical device |
CN116250138A (en) * | 2022-06-29 | 2023-06-09 | 宁德时代新能源科技股份有限公司 | Box, battery and electrical device |
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