CN114171833A - Battery system and automobile body integrated configuration and vehicle - Google Patents

Battery system and automobile body integrated configuration and vehicle Download PDF

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Publication number
CN114171833A
CN114171833A CN202111516487.5A CN202111516487A CN114171833A CN 114171833 A CN114171833 A CN 114171833A CN 202111516487 A CN202111516487 A CN 202111516487A CN 114171833 A CN114171833 A CN 114171833A
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CN
China
Prior art keywords
vehicle body
side plate
plate
battery
battery system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111516487.5A
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Chinese (zh)
Inventor
林典
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China Express Jiangsu Technology Co Ltd
Original Assignee
China Express Jiangsu Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Express Jiangsu Technology Co Ltd filed Critical China Express Jiangsu Technology Co Ltd
Priority to CN202111516487.5A priority Critical patent/CN114171833A/en
Publication of CN114171833A publication Critical patent/CN114171833A/en
Pending legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor
    • 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)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The invention relates to the technical field of batteries, and discloses a battery system and vehicle body integrated structure and a vehicle, wherein the battery system and vehicle body integrated structure comprises a vehicle body bottom plate and a battery module, a first cross beam, a second cross beam, a longitudinal beam, a first side plate and a second side plate are arranged at the bottom of the vehicle body bottom plate, the first end of the longitudinal beam is connected with the first cross beam, the second end of the longitudinal beam is connected with the second cross beam, the first side plate, the second cross beam and the second side plate are sequentially connected to form an accommodating space, the battery module is accommodated in the accommodating space, a battery upper cover is not required to be arranged, and the space utilization rate from the vehicle body bottom plate to the bottom of a battery is improved.

Description

Battery system and automobile body integrated configuration and vehicle
Technical Field
The invention relates to the technical field of batteries, in particular to a battery system and vehicle body integrated structure and a vehicle.
Background
At present, with the popularization of new energy electric vehicles, research on the electric vehicles is increased by various vehicle enterprises, and particularly, the research is performed on optimizing and adjusting the layout and packaging of a chassis battery pack of the electric vehicle. The traditional power battery pack structure is divided into an upper cover, a lower box body, a battery inside the power battery pack and other parts, the upper cover and the lower box body are connected through bolts to form a sealed battery pack, and then the independent battery pack is suspended below a vehicle bottom plate in a screw connection or other connection modes, so that the space utilization rate of the structure is low.
Disclosure of Invention
The invention aims to provide a battery system and vehicle body integrated structure and a vehicle, which can improve the space utilization rate.
In order to solve the technical problem, the invention provides a battery system and vehicle body integrated structure, which comprises a vehicle body bottom plate and a battery module;
be equipped with first crossbeam, second crossbeam, longeron, first curb plate and second curb plate on vehicle body floor's the bottom, the first end of longeron with first crossbeam is connected, the second end of longeron with the second crossbeam is connected, just first crossbeam first curb plate the second crossbeam with the second curb plate connects gradually to enclose into accommodation space, the battery module holds in the accommodation space.
As a preferred scheme, a first mounting bracket is arranged on one side of the battery module, and a second mounting bracket is arranged on the other side of the battery module; the number of the battery modules is 2, a first mounting bracket of one battery module is connected to the first side plate, and a second mounting bracket is connected to the longitudinal beam; and the first mounting bracket of the other battery module is connected to the longitudinal beam, and the second mounting bracket is connected to the second side plate.
Preferably, the battery system and vehicle body integrated structure further comprises a bottom guard plate, and the bottom guard plate is connected to the longitudinal beam, the first side plate and the second side plate.
Preferably, the bottom surfaces of the first side plate and the second side plate protrude from the bottom surface of the bottom protection plate.
Preferably, bottom surfaces of the first cross beam and the second cross beam protrude from a bottom surface of the bottom guard plate.
Preferably, the integrated structure of the battery system and the vehicle body further comprises a heating and cooling plate, and the heating and cooling plate is arranged between the vehicle body bottom plate and the battery module.
Preferably, the integrated structure of the battery system and the vehicle body further comprises a heat insulation pad, and the heat insulation pad is arranged between the vehicle body bottom plate and the heating and cooling plate.
Preferably, the first cross member, the second cross member, the longitudinal member, the first side plate, and the second side plate are fixed to the underbody by welding, or the underbody, the first cross member, the second cross member, the longitudinal member, the first side plate, and the second side plate are integrally formed by casting or punching.
Preferably, the first side plate and the second side plate are stamped and molded by metal or composite materials.
In order to solve the same technical problem, the invention also provides a vehicle which comprises the battery system and a vehicle body integrated structure.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a battery system and vehicle body integrated structure which comprises a vehicle body bottom plate and a battery module, wherein a first cross beam, a second cross beam, a longitudinal beam, a first side plate and a second side plate are arranged at the bottom of the vehicle body bottom plate, the first end of the longitudinal beam is connected with the first cross beam, the second end of the longitudinal beam is connected with the second cross beam, the first side plate, the second cross beam and the second side plate are sequentially connected to form an accommodating space, the battery module is accommodated in the accommodating space, a battery upper cover is not required to be arranged, and the space utilization rate from the vehicle body bottom plate to the bottom of a battery is improved. Meanwhile, the invention also correspondingly provides a vehicle.
Drawings
Fig. 1 is a schematic structural view of an integrated structure of a battery system and a vehicle body in an embodiment of the invention;
fig. 2 is a plan view of a battery system and vehicle body integrated structure in an embodiment of the invention;
FIG. 3 is a cross-sectional view at A-A of FIG. 2;
FIG. 4 is a cross-sectional view of FIG. 2 at B-B;
FIG. 5 is a schematic view of the assembly of the battery module with the underbody;
wherein, 1, a vehicle body bottom plate; 2. a battery module; 3. a first cross member; 4. a second cross member; 5. a stringer; 6. a first side plate; 7. a second side plate; 8. a first mounting bracket; 9. a second mounting bracket; 10. and (7) a bottom guard plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the integrated structure of a battery system and a vehicle body according to the embodiment of the present invention includes a vehicle body floor 1 and a battery module 2;
be equipped with first crossbeam 3, second crossbeam 4, longeron 5, first curb plate 6 and second curb plate 7 on the bottom of underbody 1, the first end of longeron 5 with first crossbeam 3 is connected, the second end of longeron 5 with second crossbeam 4 is connected, just first crossbeam 3 first curb plate 6 second crossbeam 4 with second curb plate 7 connects gradually to enclose into accommodation space, battery module 2 holds in the accommodation space.
In the embodiment of the invention, the integrated structure of the battery system and the vehicle body comprises a vehicle body bottom plate 1 and a battery module 2, wherein a first cross beam 3, a second cross beam 4, a longitudinal beam 5, a first side plate 6 and a second side plate 7 are arranged at the bottom of the vehicle body bottom plate 1, a first end of the longitudinal beam 5 is connected with the first cross beam 3, a second end of the longitudinal beam 5 is connected with the second cross beam 4, the first cross beam 3, the first side plate 6, the second cross beam 4 and the second side plate 7 are sequentially connected to form an accommodating space, and the battery module 2 is accommodated in the accommodating space without arranging a battery upper cover, so that the space utilization rate from the vehicle body bottom plate to the battery bottom is improved, the original battery bottom plate structure is lightened, and the production cost is reduced.
In the prior art, the bottom of an original vehicle body is not transversely and longitudinally reinforced, and the periphery of the original vehicle body is not provided with a bottom protection plate sealing installation surface. According to the integration scheme provided by the embodiment of the invention, the transverse and longitudinal reinforcing beams are additionally arranged at the bottom of the vehicle body, and the sealing installation surface of the guard plate is additionally arranged on the periphery of the vehicle body. Therefore, the structural beam in the X/Y direction of the original battery is integrated on the vehicle body, and the vehicle body structure is reinforced, so that the assembly clearance and parts are reduced on the basis of not reducing the height of the battery, the distance from the bottom of the battery to the ground is increased, and the trafficability of the whole vehicle is improved; meanwhile, the battery is protected by the aid of the cross beam and the longitudinal beam with higher rigidity of the whole vehicle. In addition, based on the battery and the whole vehicle integration angle, when the battery pack is fixed and sealed reliably, the space utilization rate of the battery to the whole vehicle is improved, the vehicle body is strengthened, the battery protection is improved, parts are reduced, and the cost is reduced.
Referring to fig. 3, a first mounting bracket 8 is disposed on one side of the battery module 2, and a second mounting bracket 9 is disposed on the other side of the battery module 2; the number of the battery modules 2 is 2, wherein a first mounting bracket 8 of one battery module 2 is connected to the first side plate 6, and a second mounting bracket 9 is connected to the longitudinal beam 5; the first mounting bracket 8 of the other battery module 2 is connected to the longitudinal beam 5, and the second mounting bracket 9 is connected to the second side plate 7. In the middle of concrete implementation, can first installing support 8 with set up the mounting hole on the second installing support 9, will through fasteners such as screws first installing support 8 with second installing support 9 is installed first curb plate 6 longeron 5 with on the longeron 5 for the battery is dismantled from whole car bottom mountable, needs the large tracts of land when avoiding unable maintenance or maintenance to tear open the car, like this, makes battery system's maintainability not reduce.
Referring to fig. 1, 3 and 4, the integrated structure of the battery system and the vehicle body further includes a bottom guard plate 10, and the bottom guard plate 10 is connected to the longitudinal beam 5, the first side plate 6 and the second side plate 7. In a specific implementation, the bottom protection plate 10 can be mounted on the longitudinal beam 5, the first side plate 6 and the second side plate 7 through fasteners such as screws, so as to facilitate mounting and dismounting.
Referring to fig. 3, the bottom surfaces of the first side plate 6 and the second side plate 7 protrude from the bottom surface of the bottom protection plate 10. The bottom of bottom backplate 10 is higher than first curb plate 6 with second curb plate 7 position plays the effect of protection battery module 2, and when the bottom collision takes place, first curb plate 6 with second curb plate 7 intensity is high, can avoid the extrusion battery to arouse the incident.
Referring to fig. 4, bottom surfaces of the first beam 3 and the second beam 4 protrude from a bottom surface of the bottom protection plate 10. The bottom of backplate is higher than automobile body bottom crossbeam position, plays the effect of protection battery module 2, and when the bottom collision takes place, crossbeam intensity is high, can avoid the extrusion battery to arouse the incident.
In an alternative embodiment, the battery system and vehicle body integrated structure further comprises a heating and cooling plate, and the heating and cooling plate is arranged between the vehicle body bottom plate 1 and the battery module 2. By providing the heating and cooling plate, the operation of heating and cooling the battery module 2 is facilitated.
Further, the integrated structure of the battery system and the vehicle body further comprises a heat insulation pad, and the heat insulation pad is arranged between the vehicle body bottom plate 1 and the heating and cooling plate. In the embodiment of the invention, the vehicle body bottom plate 1 is separated from the heating and cooling plates by the heat insulating layer, so that heat is prevented from being transferred to the vehicle body, and the heating and cooling performance of the heating and cooling plates is prevented from being reduced.
In an alternative embodiment, the first cross member 3, the second cross member 4, the longitudinal member 5, the first side plate 6, and the second side plate 7 are fixed to the underbody 1 by welding, or the underbody 1, the first cross member 3, the second cross member 4, the longitudinal member 5, the first side plate 6, and the second side plate 7 are integrally formed by casting or punching. In the specific implementation, the vehicle body sealing performance of the vehicle body is guaranteed by the vehicle body bottom plate 1 through welding, casting, stamping and other forms with the first cross beam 3, the second cross beam 4, the longitudinal beam 5, the first side plate 6 and the second side plate 7, and the problem that the sealing performance is difficult to realize due to the multi-block splicing form of the original vehicle body is solved.
In an alternative embodiment, the first side plate 6 and the second side plate 7 are stamped and molded from metal or composite materials. In the middle of concrete implementation, first curb plate 6 with second curb plate 7 adopts metal, combined material punching press, compression molding as the backplate, can be convenient for control the great profile tolerance of automobile body shaping, realizes following the type and seals, realizes sealing of battery system backplate and automobile body to avoid the internal system to intake.
Correspondingly, the invention further provides a vehicle which comprises the battery system and a vehicle body integrated structure.
In the specific implementation, the integration technology of the lower vehicle body and the battery of the whole vehicle reduces the integration clearance inside the battery and the integration clearance with the vehicle body in the X/Y/Z direction through an integrated structure, improves the space utilization rate from the vehicle body bottom plate 1 to the bottom of the battery, increases the ground clearance from the battery to the vehicle body on the basis of not reducing the height and the electric quantity of the battery, and improves the trafficability of the whole vehicle; the longitudinal beam is added on the original vehicle body structure, so that the vehicle body structure is favorably reinforced, and the vehicle body strength is improved; meanwhile, under two measures, the protection of the vehicle body to the battery is improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (10)

1. The integrated structure of the battery system and the vehicle body is characterized by comprising a vehicle body bottom plate and a battery module;
be equipped with first crossbeam, second crossbeam, longeron, first curb plate and second curb plate on vehicle body floor's the bottom, the first end of longeron with first crossbeam is connected, the second end of longeron with the second crossbeam is connected, just first crossbeam first curb plate the second crossbeam with the second curb plate connects gradually to enclose into accommodation space, the battery module holds in the accommodation space.
2. The battery system and vehicle body integrated structure according to claim 1, wherein a first mounting bracket is provided at one side of the battery module, and a second mounting bracket is provided at the other side of the battery module; the number of the battery modules is 2, a first mounting bracket of one battery module is connected to the first side plate, and a second mounting bracket is connected to the longitudinal beam; and the first mounting bracket of the other battery module is connected to the longitudinal beam, and the second mounting bracket is connected to the second side plate.
3. The integrated battery system and vehicle body structure of claim 1, further comprising a floor fender, wherein the floor fender is connected to the side member, the first side plate, and the second side plate.
4. The battery system and vehicle body integrated structure according to claim 3, wherein bottom surfaces of the first side plate and the second side plate protrude from a bottom surface of the floor panel.
5. The battery system and vehicle body integrated structure of claim 3, wherein bottom surfaces of the first cross member and the second cross member protrude from a bottom surface of the floor panel.
6. The battery system and vehicle body integrated structure of any one of claims 1-5, wherein the battery system and vehicle body integrated structure further comprises a heating and cooling plate, and the heating and cooling plate is arranged between the vehicle body bottom plate and the battery module.
7. The battery system and vehicle body integrated structure of claim 6, further comprising a thermal insulation pad disposed between the underbody panel and the heated cooling panel.
8. The battery system and vehicle body integrated structure according to any one of claims 1 to 5, wherein the first cross member, the second cross member, the longitudinal member, the first side plate, and the second side plate are fixed to the underbody panel by welding, or the underbody panel, the first cross member, the second cross member, the longitudinal member, the first side plate, and the second side plate are integrally formed by casting or punching.
9. The battery system and vehicle body integrated structure of any one of claims 1-5, wherein the first side plate and the second side plate are stamped and molded from metal or composite materials.
10. A vehicle characterized by comprising the battery system according to any one of claims 1 to 9 integrated with a vehicle body.
CN202111516487.5A 2021-12-13 2021-12-13 Battery system and automobile body integrated configuration and vehicle Pending CN114171833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111516487.5A CN114171833A (en) 2021-12-13 2021-12-13 Battery system and automobile body integrated configuration and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111516487.5A CN114171833A (en) 2021-12-13 2021-12-13 Battery system and automobile body integrated configuration and vehicle

Publications (1)

Publication Number Publication Date
CN114171833A true CN114171833A (en) 2022-03-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111516487.5A Pending CN114171833A (en) 2021-12-13 2021-12-13 Battery system and automobile body integrated configuration and vehicle

Country Status (1)

Country Link
CN (1) CN114171833A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117922689A (en) * 2024-03-22 2024-04-26 吉林省威创机电工程有限公司 Integral chassis frame structure for new energy truck chassis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117922689A (en) * 2024-03-22 2024-04-26 吉林省威创机电工程有限公司 Integral chassis frame structure for new energy truck chassis

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