CN111864127B - Battery box for vehicle, assembling method of battery box and vehicle - Google Patents

Battery box for vehicle, assembling method of battery box and vehicle Download PDF

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Publication number
CN111864127B
CN111864127B CN201910320081.6A CN201910320081A CN111864127B CN 111864127 B CN111864127 B CN 111864127B CN 201910320081 A CN201910320081 A CN 201910320081A CN 111864127 B CN111864127 B CN 111864127B
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CN
China
Prior art keywords
lateral
transverse
assembly
side wall
vertical portion
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.)
Active
Application number
CN201910320081.6A
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Chinese (zh)
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CN111864127A (en
Inventor
韩金娥
樊春梅
吴鸿雯
张范辉
尤留冬
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PSA Automobiles SA
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PSA Automobiles SA
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Publication date
Application filed by PSA Automobiles SA filed Critical PSA Automobiles SA
Priority to CN201910320081.6A priority Critical patent/CN111864127B/en
Priority to FR2003697D priority patent/FR3095168A3/en
Priority to FR2003697A priority patent/FR3095168B3/en
Publication of CN111864127A publication Critical patent/CN111864127A/en
Application granted granted Critical
Publication of CN111864127B publication Critical patent/CN111864127B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • 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
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • 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
    • 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
    • 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
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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
    • H01M50/291—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 characterised by their shape
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention relates to the technical field of vehicle parts, in particular to a battery box for a vehicle, an assembling method of the battery box and the vehicle. The battery case includes: a housing; a first laterally inner component and a first laterally outer component; and a second laterally inner assembly and a second laterally outer assembly disposed laterally inboard and outboard of the second lateral sidewall, respectively, wherein each of the first laterally inner assembly and the second laterally inner assembly comprises: a support having a stepped portion supporting the battery module, an upper vertical portion extending vertically upward from an outer edge of the stepped portion, and a lower vertical portion extending vertically downward from an inner edge of the stepped portion; and a connecting member vertically disposed, and having an inner side connected with an upper vertical portion of the supporting member and an outer side connected with an inner side of a corresponding one of the first and second lateral side walls, wherein a plurality of through holes corresponding to the connecting member are opened on the lower vertical portion to perform connection of the connecting member to the inner side of the corresponding lateral side wall through the plurality of through holes.

Description

Battery box for vehicle, assembling method of battery box and vehicle
Technical Field
The invention relates to the technical field of vehicle parts, in particular to a battery box for a vehicle, an assembling method of the battery box and the vehicle.
Background
An electric vehicle is a vehicle that uses electric power of an in-vehicle rechargeable battery as a power source or as one of the power sources. The electric vehicle has advantages of zero emission, zero pollution and less influence on the environment, and a new energy vehicle is being rapidly developed and developed.
Rechargeable batteries used in electric vehicles are generally mounted on a battery case. The battery case is assembled by welding a plurality of components. In the welding, it is necessary to sequentially weld the respective components in order according to the positions of the respective components, because in the prior art, it is generally necessary to assemble the battery case through three stations. Since each station requires a lot of manpower resources, a battery case and an assembling method thereof capable of reducing the stations required for assembly are required to simplify the assembly process and technique and reduce the manufacturing cost.
Disclosure of Invention
First, the technical problem to be solved
The first object of the invention is: the battery box capable of being assembled through two stations and meeting performance requirements and the assembling method thereof are provided, so that the problems of more battery box assembling stations, complex assembling process and higher cost in the prior art are solved.
The second object of the invention is: the vehicle comprises the battery box which can be assembled through two stations and meets the performance requirement, so that the problems of more battery box assembling stations, complex assembling process and higher cost in the prior art are solved.
(II) technical scheme
In order to solve the above technical problem, in one aspect, the present invention provides a battery case for a vehicle, comprising: a housing formed in a box shape having an opening and having a first lateral side wall at a proximal end, a second lateral side wall at a distal end, and a first longitudinal side wall and a second longitudinal side wall connected between the first lateral side wall and the second lateral side wall; a first transverse inner assembly and a first transverse outer assembly disposed transversely inward and outward of the first transverse sidewall, respectively; and a second laterally inner assembly and a second laterally outer assembly disposed laterally inboard and outboard of the second lateral sidewall, respectively, wherein each of the first and second laterally inner assemblies comprises: a support having a stepped portion supporting the battery module, an upper vertical portion extending vertically upward from an outer edge of the stepped portion, and a lower vertical portion extending vertically downward from an inner edge of the stepped portion; and a connecting member vertically disposed, and having an inner side connected with an upper vertical portion of the supporting member and an outer side connected with an inner side of a corresponding one of the first and second lateral side walls, wherein a plurality of through holes corresponding to the connecting member are opened on the lower vertical portion to perform connection of the connecting member to the inner side of the corresponding lateral side wall through the plurality of through holes.
According to the above aspect, preferably, the plurality of through holes are laterally uniformly arranged on the lower vertical portion.
According to the above aspect, preferably, the first lateral outer member includes a first lateral outer member body and side brackets provided at both ends of the first lateral outer member body and connected to the first longitudinal side wall and the second longitudinal side wall at both ends of the first lateral side wall, respectively.
According to a preferred embodiment of the above, the first lateral outer assembly body is provided at both ends with side-through holes respectively corresponding to the respective side brackets, so as to carry out the connection of the respective side brackets to the first longitudinal side wall and the second longitudinal side wall at both ends of the first lateral side wall through the side-through holes.
According to a preferred embodiment of the above, the method further comprises: a first bottom member horizontally spanning the bottom of the housing proximal end and the bottom of the first laterally outer assembly body to connect the bottom of the housing proximal end and the first laterally outer assembly body simultaneously; and a second bottom member horizontally spanning the bottom of the distal end of the housing and the bottom of the second laterally outer assembly to connect the bottom of the distal end of the housing and the second laterally outer assembly simultaneously.
According to a preferred embodiment of the above, the method further comprises: a first side member longitudinally disposed outside of the first longitudinal side wall; and a second side member disposed longitudinally outboard of the second longitudinal side wall.
According to a preferred form of the above, further comprising third and fourth transverse members connected between the first and second longitudinal side walls parallel to the first and second transverse inner members, wherein the third and fourth transverse members are spaced apart and located between the first and second transverse inner members.
According to the above aspect, preferably, fastening holes through which fasteners pass to fasten the battery modules are provided on the stepped portion of the support of each of the first and second lateral inner members and the third and fourth lateral members.
In another aspect, the present invention provides an assembling method of the above battery case, including:
Forming a first and a second inner lateral assemblies by fixing the connection member to the upper vertical portion of the support member, and forming a first outer lateral assembly by fixing the side brackets to both ends of the first outer lateral assembly body, respectively; welding a welding gun to the first lateral side wall and the second lateral side wall simultaneously through a plurality of through holes on the lower vertical portion of the support, and welding the side brackets to the first and second longitudinal side walls at both ends of the first lateral side wall respectively through side-through holes; and installing the first base member, the second base member, the first side member, and the second side member.
A further aspect of the invention provides a vehicle comprising a battery compartment as described above.
(III) beneficial effects
The technical scheme of the invention has the following advantages:
In one aspect, the present invention provides a battery case for a vehicle, comprising: a housing formed in a box shape having an opening and having a first lateral side wall at a proximal end, a second lateral side wall at a distal end, and a first longitudinal side wall and a second longitudinal side wall connected between the first lateral side wall and the second lateral side wall; a first transverse inner assembly and a first transverse outer assembly disposed transversely inward and outward of the first transverse sidewall, respectively; and a second laterally inner assembly and a second laterally outer assembly disposed laterally inboard and outboard of the second lateral sidewall, respectively, wherein each of the first laterally inner assembly and the second laterally inner assembly comprises: a support having a stepped portion supporting the battery module, an upper vertical portion extending vertically upward from an outer edge of the stepped portion, and a lower vertical portion extending vertically downward from an inner edge of the stepped portion; and a connecting member vertically disposed, and having an inner side connected with an upper vertical portion of the supporting member and an outer side connected with an inner side of a corresponding one of the first and second lateral side walls, wherein a plurality of through holes corresponding to the connecting member are opened on the lower vertical portion to perform connection of the connecting member to the inner side of the corresponding lateral side wall through the plurality of through holes. Compared with the assembly process that the connecting piece is welded on the side wall of the shell at one station and then the supporting piece is welded on the connecting piece at the next station in the prior art, the battery box and the assembly method thereof provided by the invention can fix the connecting piece on the supporting piece before the battery box is assembled, and the connecting piece and the supporting piece are connected to form the first transverse inner assembly and the first transverse outer assembly which are welded on the shell through the plurality of through holes, so that the welding gun can weld the connecting piece on the side wall of the shell through the through holes when the connecting piece and the supporting piece are welded on the shell. This can reduce the number of stations required to assemble the battery case. While securing the connector to the support prior to assembly is less costly than adding one station. And the performance of the battery box and the battery mounted on the battery box is not affected due to the through holes. Therefore, the battery box provided by the invention not only can meet the performance requirement, but also reduces the number of assembly stations and simplifies the assembly process and steps, thereby reducing the production cost.
Drawings
Fig. 1 is a schematic view of a battery case according to the prior art;
Fig. 2 is a schematic view of an assembly process of a battery case according to the related art;
FIGS. 3A-3J are schematic views of a battery compartment and its components according to the present invention;
FIG. 4A is a schematic illustration of an installation process of a first laterally inner assembly and a first laterally outer assembly according to the present invention;
FIG. 4B is a schematic illustration of a cross-section along A-A of the installation process of the first and second laterally inner assemblies according to the present invention;
FIG. 5A is a schematic illustration of an installation process of a second inner transverse component and a second outer transverse component according to the present invention;
FIG. 5B is a schematic illustration of a cross-section along B-B of a second laterally inner assembly and a second laterally outer assembly installation process according to the present invention;
FIG. 6A is a schematic view of an installation process of a side bracket according to the present invention;
FIG. 6B is a schematic view of a cross section along C-C of a side bracket installation process according to the present invention;
Fig. 7 is a schematic view of an assembly process of the battery case according to the present invention.
In the figure: 1000: a battery case; 3000: a first intermediate; 5000: a second intermediate;
2000: a battery case; 4000: a first intermediate; 10: a housing; 10-1: a first lateral sidewall; 10-2: a second lateral sidewall; 10-3: a first longitudinal sidewall; 10-4: a second longitudinal sidewall; 20: a first side member; 40: a second side member; 30: a first base member; 50: a second base member; 300: a first laterally inner assembly; 400: a first laterally outer assembly; 500: a second transverse inner assembly; 600: a second laterally outer assembly; 700: a third transverse assembly; 900: a fourth transverse assembly; 310. 510: a support; 320. 520: a connecting piece; 311. 511: a step portion; 312. 512: an upper vertical portion; 313. 513: a lower vertical portion; TH: a through hole; STH: side-via holes; FH: a fastening hole; 410: a first laterally outer assembly body; 420: a side bracket; WG: a welding gun; BOLT: a bolt; 321. 315: a connection hole; 314. 720, 730: flanging; 410-1: an intermediate portion; 410-2: a side end portion; 411: a bonding surface; 421: a first face; 422: a second face; 710: a horizontal plane.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
For convenience of description, a contracted end of the battery case near the reader is defined as a proximal end, and the other end opposite to the proximal end is defined as a distal end in the present application; and "inner" as used herein means pointing toward the center of the battery compartment and "outer" as used herein means pointing from the center of the battery compartment toward the proximal, distal, and both sides of the battery compartment; "longitudinal" as used herein means along the length of the battery compartment, i.e., from the proximal end to the distal end or vice versa, and "transverse" as used herein means both perpendicular and "longitudinal", see in particular fig. 1.
The present invention provides a battery case 2000 for a vehicle, as shown in fig. 3A, the battery case 2000 includes a case 10, and a first lateral inner assembly 300, a first lateral outer assembly 400, a second lateral inner assembly 500, a second lateral outer assembly 600, a third lateral assembly 700, a fourth lateral assembly 900, a first side member 20, a second side member 40, a first bottom member 30, and a second bottom member 50 assembled on the case 10.
Wherein the first 300, third 700, fourth 900 and second 500 transverse members are sequentially disposed in parallel in the housing 10, the first 300 transverse member is positioned at the proximal end of the battery compartment 2000, then the third 700 and fourth 900 transverse members are sequentially positioned, and the second 500 transverse member is positioned at the distal end of the battery compartment 2000. The battery modules overlap and are fixed between each adjacent two of the first, third, fourth and second lateral assemblies 300, 700, 900, and 500, respectively.
The respective constituent parts of the battery case 2000 are described in detail below with reference to fig. 3B to 3I.
Fig. 3B shows the structure of the case 10 of the battery pack 2000 according to the present invention. Referring to fig. 3B, the case 10 has a box shape with an opening, that is, the case 10 has a bottom 10-5 and first, second, and third lateral side walls 10-1, 10-2, 10-3, and 10-4 disposed at edges of the bottom 10-5 and extending upward. The first lateral side wall 10-1, the first longitudinal side wall 10-2, the second lateral side wall 10-3, and the second longitudinal side wall 10-4 are sequentially connected to be looped into a closed loop. As described above, the first lateral side wall 10-1 is located at the proximal end of the battery case 2000 and is disposed laterally between the first and second longitudinal side walls 10-2 and 10-4, and the second lateral side wall 10-3 is located at the distal end of the battery case 2000 and is disposed laterally between the first and second longitudinal side walls 10-2 and 10-4. The first and second lateral side walls 10-1, 10-3 are substantially parallel, the first and second longitudinal side walls 10-2, 10-4 are substantially parallel, and the first and second longitudinal side walls 10-2, 10-4 are substantially perpendicular to the first and second lateral side walls 10-1, 10-3, respectively.
The proximal end of the battery compartment 2000 is a converging end, i.e., the proximal end of the battery compartment 2000 has a width that gradually decreases from the third transverse assembly 700 to the first transverse sidewall 10-1. Accordingly, the first and second longitudinal side walls 10-2 and 10-4 are connected to the first lateral side wall 10-1 at a proximal end position of the battery case 2000 by a bent portion bent inward.
Fig. 3C shows the structure of the first lateral inner assembly 300 of the battery compartment 2000. Referring to fig. 3A, a first transverse inner assembly 300 is disposed transversely inboard of the first transverse sidewall 10-1. Referring to fig. 3C, the first inner transverse assembly 300 includes a support 310 and a connector 320. Specifically, the support 310 has a stepped portion 311 for supporting the battery module, and an upper vertical portion 312 extending upward from an outer edge of the stepped portion 311 and a lower vertical portion 313 extending downward from an inner edge of the stepped portion 311.
Specifically, the extended free end of the lower upright portion 313 has a flange 314, and the flange 314 may be horizontally disposed to fit the bottom 10-5 of the housing 10, and the lower upright portion 313 may be fixed to the bottom 10-5 of the housing 10 by the flange 314. A plurality of through holes TH are provided on the lower vertical portion 313, and the plurality of through holes TH are preferably arranged laterally and uniformly distributed on the lower vertical portion 313. The through holes TH are for passing a welding gun to perform a welding operation on the connector 320 at the rear of the through holes TH, so that each through hole TH corresponds to one welding point. Such a laterally and uniformly distributed arrangement of the through holes TH may form welding spots uniformly distributed in the lateral direction to the connection member 320 behind the lower vertical portion 313, which may form a uniform fixing force. Thereby, the density of the welding points of the connector 320 can be increased by increasing the number of the through holes TH to increase the fixing strength of the connector 320. The battery case 2000 according to the embodiment of the present invention provides 5 through holes TH which are uniformly distributed in the lateral direction.
The stepped portion 311 has a horizontal step to form a platform surface that can overlap the battery module. Specifically, the stepped portion 311 is provided with a fastening hole FH through which a fastener can pass and be fastened to the battery module overlapped on the stepped portion 311. In particular, the fastener may be a bolt BOLT, which may have a fastening hole or a stud corresponding to the bolt BOLT at a corresponding position of the battery module, pass through the fastening hole FH on the stepped portion and further pass through the corresponding fastening hole on the battery module, and then be fastened and fixed with a nut, or pass through the fastening hole FH on the stepped portion and then be fastened into the corresponding stud on the battery module to be fastened and fixed.
The upper vertical portion 312 is vertical and is connected to the connector 320 at the outside. Specifically, the upper vertical portion 312 is provided with a connection hole 315, and the connection member 320 is provided with a connection hole 321 corresponding to the connection hole 315, and when the connection member 320 is attached to the upper vertical portion 312 and its relative position is adjusted such that the connection hole 321 of the connection member 320 is fastened to the connection hole 315 of the upper vertical portion 312 by means of a standard member.
According to an embodiment, the connection member 320 is formed in a plate-shaped structure and vertically disposed, wherein an upper portion of the connection member 320 is fixed on the upper vertical portion 312 of the support member 310 by fitting an inner side thereof with an outer side of the upper vertical portion 312 of the support member 310, and a lower portion of the connection member 320 is formed to extend downward parallel to the lower vertical portion 313 of the support member 310 and correspond to the lower vertical portion 313 of the support member 310. Specifically, the lower portion of the connection member 320 corresponds to the through hole TH on the lower vertical portion 313 so that a welding gun passing through the through hole TH can perform a welding operation with respect to the lower portion of the connection member 320 corresponding to the through hole TH. As used herein, "upper" refers to the portion of the connector 320 fixedly connected to the upper upright portion 312 of the support 310, and "lower" refers to the portion of the connector 320 opposite to "upper", i.e., the portion of the connector 320 other than "upper". The outer side of the lower portion of the connector 320 is connected to the inner side of the first lateral side wall 10-1 as shown in fig. 3A. Thereby, the inner side of the upper part of the connection member 320 is connected with the upper vertical part 311 of the support member 310, and the outer side of the lower part of the connection member 320 is connected with the inner side of the first lateral sidewall 10-1, so that the support member 310 can be fixed to the inner side of the first lateral sidewall 10-1 by the connection member 320, so that the battery module can be overlapped and fixed on the stepped part 311 of the support member 310. As described above, the connection member 320 is provided with the connection hole 321 for connection with the connection hole 315 of the upper vertical portion 312 and by a fastener. The battery case 2000 according to the embodiment of the present invention provides two connection holes 315 arranged laterally symmetrically.
Fig. 3D shows the structure of a second transverse inner member of the battery 2000 of the present invention. Referring to fig. 3A, a second transverse inner assembly 500 is disposed transversely inboard of the second transverse sidewall 10-3. Referring to fig. 3C, the second inner transverse assembly 500 includes a support 510 and a connector 520. Specifically, the support 510 has a stepped portion 511 for supporting the battery module, and an upper vertical portion 512 extending upward from an outer edge of the stepped portion 511 and a lower vertical portion 513 extending downward from an inner edge of the stepped portion 511.
Specifically, the extended free end of the lower vertical portion 513 has a flange 514, and the flange 514 may be horizontally disposed to fit the bottom 10-5 of the housing 10, and the lower vertical portion 513 may be fixed to the bottom 10-5 of the housing 10 by the flange 314. A plurality of through holes TH are provided on the lower vertical portion 513, and the plurality of through holes TH are preferably arranged laterally and uniformly distributed on the lower vertical portion 313. The through holes TH are for passing a welding gun to perform a welding operation on the connection 520 at the rear of the through holes TH, so that each through hole TH corresponds to one welding point. Such a laterally and uniformly distributed arrangement of the through holes TH can form welding spots uniformly distributed in the lateral direction to the connection member 520 behind the lower vertical part 513, so that a uniform fixing force can be formed. Thereby, the density of the welding points of the connector 520 can be increased by increasing the number of the through holes TH to increase the fixing strength of the connector 520. The battery case 2000 according to the embodiment of the present invention provides 10 through holes TH uniformly distributed in the lateral direction. According to an embodiment of the present invention, the spacing between the through holes TH on the support 510 of the first lateral inner member 300 may be equal to the spacing between the through holes TH on the support 520 of the second lateral inner member 500. The same pitch may provide the same pitch of welds, and thus may provide the same strength of weld. The number of through holes TH may be adjusted accordingly according to the length of the supports 310, 510.
The stepped part 511 has a horizontal step to form a flat surface that can overlap the battery module. Specifically, the stepped portion 511 is provided with a fastening hole FH through which a fastener can pass and be fastened to the battery module overlapped on the stepped portion 511. In particular, the fastener may be a bolt BOLT, which may have a fastening hole or a stud corresponding to the bolt BOLT at a corresponding position of the battery module, pass through the fastening hole FH on the stepped portion and further pass through the corresponding fastening hole on the battery module, and then be fastened and fixed with a nut, or pass through the fastening hole FH on the stepped portion and then be fastened into the corresponding stud on the battery module to be fastened and fixed.
The upper vertical portion 512 is vertical and is connected to the connector 520 at the outside. Specifically, the upper vertical portion 512 is provided with a connection hole 515, and the connection member 520 is provided with a connection hole 521 corresponding to the connection hole 515, and when the connection member 520 is attached to the upper vertical portion 512 and its relative position is adjusted such that the connection hole 521 on the connection member 520 is aligned with the connection hole 515 on the upper vertical portion 512, fastening connection can be performed by a standard member.
According to an embodiment, the connection member 520 is formed in a plate-shaped structure and vertically disposed, wherein an upper portion of the connection member 520 is fixed on the upper vertical portion 512 of the support member 510 by fitting an inner side thereof with an outer side of the upper vertical portion 512 of the support member 510, and a lower portion of the connection member 520 is formed to extend downward parallel to the lower vertical portion 513 of the support member 510 and correspond to the lower vertical portion 513 of the support member 510. Specifically, the lower portion of the connection member 520 corresponds to the through hole TH on the lower vertical portion 513, so that the welding gun passing through the through hole TH can perform a welding operation for the lower portion of the connection member 520 corresponding to the through hole TH. As used herein, "upper" refers to the portion of the connector 520 fixedly connected to the upper vertical portion 512 of the support 510, and "lower" refers to the portion of the connector 520 opposite to "upper", i.e., the portion of the connector 520 other than "upper". The outer side of the lower portion of the connection member 520 is connected to the inner side of the second lateral side wall 10-3 as shown in fig. 3A. Thereby, the inner side of the upper part of the connection member 520 is connected with the upper vertical part 511 of the support member 510, and the outer side of the lower part of the connection member 520 is connected with the inner side of the second lateral side wall 10-3, so that the support member 510 can be fixed to the inner side of the second lateral side wall 10-3 by the connection member 520, so that the battery module can be overlapped and fixed on the stepped part 511 of the support member 510. As described above, the connection member 520 is provided with the connection hole 521 for connection with the connection hole 515 of the upper vertical part 512 and by a fastener. The battery case 2000 according to the embodiment of the present invention provides two connection holes 515 arranged laterally symmetrically.
Fig. 3E shows the structure of the first lateral outer assembly 400 of the battery compartment 2000. Referring to fig. 3A, a first lateral outer assembly 400 is disposed laterally outboard of the first lateral sidewall 10-1. Referring to fig. 3E, the first lateral outer member 400 includes a first lateral outer member body 410 and two side brackets 420 respectively provided at both ends of the first lateral outer member body 410.
Specifically, the shape of the first lateral outer assembly body 410 matches the shape of the outer surface of the proximal end of the battery compartment 2000. Specifically, as described above, the first and second longitudinal side walls 10-2 and 10-4 are connected to the first lateral side wall 10-1 at the proximal end position of the battery case 2000 by the bent portion that is bent inward. Accordingly, the first lateral outer assembly body 410 includes a middle portion 410-1 and side end portions 410-2 bent inward from both ends of the middle portion 410-1. Wherein the middle portion 410-1 corresponds to the outer side of the first lateral sidewall 10-1 and is attached to the outer side of the first lateral sidewall 10-1, and the side end portions 410-2 correspond to the bent portions of the first and second longitudinal sidewalls 10-2 and 10-4 connected to both ends of the first lateral sidewall 10-1 and are attached to the bent portions of the first and second longitudinal sidewalls 10-2 and 10-4. As such, the first lateral outer assembly body 410 may enclose the proximal end of the battery compartment 2000. At the end of the side end portion 410-2, an abutment surface 411 abutting against the side bracket 420 is provided, wherein the abutment surface 411 is substantially perpendicular to the extending direction of the side end portion 410, i.e. perpendicular to the tangential direction of the outer surface of the side end portion 410-2. Accordingly, a second face 422 corresponding to the fitting face 411 of the side end portion 410-2 is provided on the side bracket 420. When the side bracket 420 is connected to the first lateral outer member body 410, the second face 422 of the side bracket 420 is bonded to the bonding face 411 of the lateral end portion 410-2 of the first lateral outer member body 410.
The side bracket 420 further includes a first surface 421, and the first surface 421 is perpendicularly connected to the second surface 422. And the second face 422 is located inside the first face 421. When the second face 422 of the side bracket 420 is attached to the attaching face 411 of the side end portion 410-2 of the first laterally outer member body 410, the first face is located in an inner area formed by the side end portion 410-2 and the intermediate portion 410-1 of the first laterally outer member body 410 and is in contact with the bent portions of the first longitudinal side wall 10-2 and the second longitudinal side wall 10-4 connected to both ends of the first lateral side wall 10-1.
The side end portion 410-2 is provided with a side-through hole STH, and when the second face 422 of the side bracket 420 is attached to the attaching face 411 of the side end portion 410-2 of the first lateral outer member body 410, such that the first face 421 is located in an inner region formed by the side end portion 410-2 and the middle portion 410-1 of the first lateral outer member body 410, the first face 421 can correspond to the side-through hole STH, such that the welding gun can weld the first face 421 through the side-through hole STH, thereby welding the first face 421 in contact with the bent portions of the first and second longitudinal side walls 10-2 and 10-4 to the bent portions of the first and second longitudinal side walls 10-2 and 10-4.
Fig. 3F shows the structure of the third transverse assembly 700 of the battery pack 2000. Referring to fig. 3A, a third transverse assembly 700 is disposed transversely within the housing 10, wherein the third transverse assembly 700 is parallel to the first 300 and second 500 transverse inner assemblies and is located between the first 300 and second 500 transverse inner assemblies. The third transverse assembly 700 is connected at both ends to the first and second longitudinal side walls 10-2 and 10-4, and the third transverse assembly 700 is perpendicular to the first and second longitudinal side walls 10-2 and 10-4.
Specifically, referring to fig. 3B, the third transverse assembly 700 includes a horizontal plane 710 for supporting the battery module, a fastening hole FH is provided on the horizontal plane 710, a fastener such as a bolt BOLT may be provided through the fastening hole FH, and the battery module may be fixed to the horizontal plane 710 in the same manner as described above. The third transverse assembly 700 includes cuffs 720 and 730. The flanges 720 are provided at both ends in the length direction of the third transverse member 700, and the third transverse member 700 can be connected to the first longitudinal side wall 10-2 and the second longitudinal side wall 10-4 through the flanges 720. The flange 730 extends along the length of the third transverse assembly 700 and has a level conforming to the bottom 10-5 of the housing 10, by means of which flange 730 the third transverse assembly 700 can be coupled to the bottom 10-5 of the housing 10.
The structure of the fourth transverse assembly 900 is the same as that of the third transverse assembly 700, and illustration of the fourth transverse assembly 900 and a detailed description thereof are omitted herein. Mounting position of the fourth transverse assembly 900 referring to fig. 3A, the fourth transverse assembly 900 is disposed transversely within the housing 10, wherein the fourth transverse assembly 900 is parallel to the first 300, second 500, and third 500 transverse inner assemblies and is located between the first 300 and second 500 transverse inner assemblies. The fourth transverse assembly 900 is connected at both ends to the first and second longitudinal side walls 10-2 and 10-4, and the fourth transverse assembly 900 is perpendicular to the first and second longitudinal side walls 10-2 and 10-4.
Wherein the third transverse assembly 700 is spaced apart from the fourth transverse assembly 900 and the third transverse assembly 700 is located between the first and fourth transverse assemblies 300, 900 and the fourth transverse assembly 900 is located between the third and second transverse assemblies 700, 500.
Fig. 3G shows the structure of the first side member 20 of the battery case 2000. Referring to fig. 3A, the first side member 20 is disposed longitudinally outboard of the first longitudinal side wall 10-2, and the first side member 20 completely conforms to the outboard side of the first longitudinal side wall 10-2. The second side member 40 has the same structure as the first side member 20 and is disposed longitudinally outboard of the second longitudinal side wall 10-4, the second side member 40 being fully conformed to the outboard of the second longitudinal side wall 10-4. The second side member 40 is not illustrated here.
Fig. 3H shows the structure of the second lateral outer assembly 600 of the battery compartment 2000. Referring to fig. 3A, the second lateral outer member 600 is disposed laterally outside the second lateral side wall 10-3, and the second lateral outer member 600 may be fastened to the distal end of the battery case 2000 and can be fitted to the outside of the second lateral side wall 10-3.
Fig. 3I shows the first bottom member 30 of the battery compartment 2000; fig. 3J shows the second bottom member 50 of the battery compartment 2000. The first bottom member 30 and the second bottom member 50 of the battery case 2000 are described in detail during the assembly process of the battery case 2000.
The assembly process of the battery case 2000 according to the embodiment of the present invention is described below with reference to fig. 4A to 7. In order to highlight the advantages of the present invention in the description, the prior art assembly process is described herein in connection with fig. 1 and 2.
Referring to fig. 1 and 2, the assembled battery case 1000 needs to pass through three stations. At a first station, first transverse assembly 700, second transverse assembly 900, connector 520, second transverse outer assembly 600, and two side brackets 420 are assembled to housing 10 to form first intermediate 3000; then, in a second station, the connector 320 and the first laterally outer assembly body 410 are assembled to the first intermediate body 3000 to form a second intermediate body 5000; and in the third station, the first bottom member 30, the second bottom member 50, the supports 310 and 510, the first side member 20, and the second side member 40 are assembled on the second intermediate body 5000 to form the battery case 1000. It can be seen that since the respective components of the battery case are positioned in the order of the inside and the outside, the sequential installation from the outside to the inside is required. Therefore, the prior art needs to use three stations to assemble the battery box, which causes complicated assembly process and consumes a large amount of resources, thereby causing higher cost. The assembly process of the battery case according to the present invention is described below.
FIG. 4A is a schematic illustration of an installation process of a first laterally inner assembly and a first laterally outer assembly according to the present invention; fig. 4B is a schematic view of a cross section along A-A of the installation process of the first and second laterally inner assemblies according to the present invention. Referring to fig. 4A and 4B, the first lateral inner assembly 300 and the first lateral outer assembly 400 are assembled prior to installing the first lateral inner assembly 300 and the first lateral outer assembly 400. The assembly process of the first laterally inner assembly 300 and the first laterally outer assembly 400 may be as described above. The assembly process of the first lateral inner assembly 300 includes fitting the inner side of the upper portion of the connector 320 with the outer side of the upper vertical portion 312 of the supporter 310 and aligning the connection hole 321 of the connector 320 with the connection hole 315 of the upper vertical portion 312, and fixing the connector 320 to the upper vertical portion 312 using a standard, thereby completing the assembly of the first lateral inner assembly 300; the assembly process of the first laterally outer assembly 400 includes attaching the second face 422 of the side bracket 420 to the attachment face 411 of the side end portion 410-2 of the first laterally outer assembly body 410 and securing the side bracket 420 to the first laterally outer assembly body 410 using fasteners or other conventional techniques to complete the assembly of the first laterally outer assembly 400. The assembly process of the first lateral outer member 400 and the first lateral inner member 300 may be completed before the battery case is assembled, that is, the assembly process of the first lateral outer member 400 and the first lateral inner member 300 does not require a separate welding station for assembling the battery case.
The first laterally inner assembly 300 and the first laterally outer assembly 400 are disposed inboard and outboard of the first lateral side wall 10-1, respectively. The outer surface of the lower portion of the connector 320 is bonded to the inner surface of the first lateral side wall 10-1, the inner surface of the first lateral outer assembly body 410 of the first lateral outer assembly 400 is bonded to the outer surface of the first lateral side wall 10-1, the stepped portion 311 of the support 310 is in a horizontal shape, and the flange 314 of the support 310 is bonded to the bottom 10-5 of the housing 10. The welding gun WG sequentially passes through the through-hole TH while welding the lower portion of the connector 320 attached to the inside of the first lateral side wall 10-1 and the first lateral outer assembly body 410 attached to the outside of the first lateral side wall 10-1 to the first lateral side wall 10-1. Each time a weld is completed through one of the through holes, a solder joint is formed at a location corresponding to the through hole. After the welding is completed by the through holes uniformly arranged in the lateral direction, the connector 320 and the first lateral outer assembly body 410 are welded to the first lateral side wall 10-1 by a series of welding. Since the support member and the connection member have been assembled as the first lateral inner member and the first lateral outer member body and the side bracket have been assembled as the first lateral outer member before the battery case is assembled, the support member, the connection member, the first lateral outer member body and the side bracket can be simultaneously assembled to the case after the above-described welding process.
Referring also to fig. 4A and 4B, it can be seen that the first bottom member 30 horizontally spans the proximal bottom portion 10-5 of the housing 10 and the first laterally outer assembly body 410 to connect the proximal bottom portion 10-5 of the housing 10 and the first laterally outer assembly body 410 at the same time. The assembly process of the first bottom member 30 may be performed at a different station than the assembly process of the first laterally inner assembly and the first laterally outer assembly described above.
FIG. 5A is a schematic illustration of an installation process of a second inner transverse component and a second outer transverse component according to the present invention; fig. 5B is a schematic view of a cross section along B-B of a second laterally inner assembly and a second laterally outer assembly installation procedure according to the present invention. Referring to fig. 5A and 5B, the second inner transverse assembly 500 is assembled prior to the installation of the second inner transverse assembly 500 and the second outer transverse assembly 600. The assembly process of the second inner transverse assembly 500 may be as described above. The assembly process of the second lateral inner assembly 500 includes fitting the inner side of the upper portion of the connection member 520 with the outer side of the upper vertical portion 512 of the support member 510 and aligning the connection hole 521 of the connection member 520 with the connection hole 515 of the upper vertical portion 512, and fixing the connection member 520 to the upper vertical portion 512 using a standard member, thereby completing the assembly of the second lateral inner assembly 500; the second laterally outer assembly 600 is a unitary body and does not require prior assembly. The assembly process of the second lateral outer member 600 and the second lateral inner member 500 may be completed before the battery case is assembled, that is, the assembly process of the second lateral outer member 600 and the second lateral inner member 500 does not require a separate welding station for assembling the battery case.
The second inner and outer transverse components 500 and 600 are placed inside and outside the second transverse sidewall 10-3, respectively. The outer surface of the lower portion of the connection member 520 is bonded to the inner surface of the second lateral side wall 10-3, the inner surface of the second lateral outer assembly 600 is bonded to the outer surface of the second lateral side wall 10-3, the stepped portion 511 of the support member 510 is in a horizontal shape, and the flange 514 of the support member 510 is bonded to the bottom 10-5 of the housing 10. The welding gun WG sequentially passes through the through-hole TH while welding the lower portion of the connection 520 attached to the inside of the second lateral side wall 10-3 and the second lateral outer assembly 600 attached to the outside of the second lateral side wall 10-3 to the second lateral side wall 10-3. Each time a weld is completed through one of the through holes, a solder joint is formed at a location corresponding to the through hole. After the welding is completed by the through holes uniformly arranged in the lateral direction, the connector 520 and the second lateral outer member 600 are welded to the second lateral side wall 10-3 by a series of welding. Since the support member and the connection member are already assembled into the second lateral inner member before the battery case is assembled, the support member, the connection member, and the second lateral outer member can be simultaneously assembled to the case after passing through the above-described welding process. The assembly process may be performed at the same station as the welding process of the first laterally outer and first laterally inner components to the housing described above with reference to fig. 4A and 4B.
Referring also to fig. 5A and 5B, it can be seen that the second bottom member 50 horizontally spans the proximal bottom portion 10-5 of the housing 10 and the second lateral outer assembly 600 to connect the proximal bottom portion 10-5 of the housing 10 and the first lateral outer assembly 600 at the same time. The assembly process of the second bottom member 50 may be performed at a different station than the assembly process of the second inner and outer transverse assemblies described above and may be performed at the same station as the assembly process of the first bottom member 30 described above.
FIG. 6A is a schematic view of an installation process of a side bracket according to the present invention; fig. 6B is a schematic view of a cross section along C-C of a side bracket installation process according to the present invention. Referring to fig. 6A and 6B, after the first lateral inner member 300 and the first lateral outer member 400 are assembled to the housing 10 by the method described with reference to fig. 4A and 4B, since the first lateral outer member 400 at this time already includes the first lateral outer member body 410 welded to the first lateral side wall 10-1 of the housing 10 and the side end portion 410-2 previously fixed to the first lateral outer member body 410, it is necessary to fix the side bracket 420 to the housing 10 at this time. As described above, the side-through hole STH is provided on the side end portion 410-2 of the first lateral outer assembly body 410, and corresponds to the first face 421 of the side bracket 420, so that the welding gun can weld the first face 421 to the corresponding side wall of the case 10, specifically, to the surface of the outside of the bent portion of the first and second longitudinal side walls 10-2 and 10-4 of the case 10 through the side-through hole STH. The assembly process may be performed at the same station as the assembly process of the first inner and outer transverse components described above with reference to fig. 4A and 4B and the first and second outer transverse components described above with reference to fig. 5A and 5B.
Fig. 7 is an assembly process of the battery case according to the present invention. Referring to fig. 7, the first, second and third lateral inner assemblies 300, 400 and 500 have been previously assembled before the battery case is assembled, and thus, the first, second and third lateral inner assemblies 300, 400, 500, 600 and 700 and the fourth lateral assemblies 900 are mounted to the case to form the first intermediate body 4000 at the first station. The method of installing the first laterally inner assembly 300, the first laterally outer assembly 400, the second laterally inner assembly 500, and the second laterally outer assembly 600 may be performed as described above with reference to fig. 4A-6B. The first bottom member 30, the second bottom member 50, and the first and second side members 20 and 40 are then mounted on the first intermediate body 4000 to form the battery case 2000.
Thus, the battery box according to the invention can be assembled through only two stations, and the battery box formed by the assembling method is installed without affecting the service performance. Therefore, the battery box and the assembling method thereof can simplify the assembling process, reduce the cost and have better economy.
Another aspect of the present invention is to provide a vehicle including the above battery case, which has a reduced manufacturing cost and superior economy due to a reduced supporting cost of the battery case and simplified assembly process.
In summary, an aspect of the present invention provides a battery case for a vehicle, including: a housing formed in a box shape having an opening and having a first lateral side wall at a proximal end, a second lateral side wall at a distal end, and a first longitudinal side wall and a second longitudinal side wall connected between the first lateral side wall and the second lateral side wall; a first transverse inner assembly and a first transverse outer assembly disposed transversely inward and outward of the first transverse sidewall, respectively; and a second laterally inner assembly and a second laterally outer assembly disposed laterally inboard and outboard of the second lateral sidewall, respectively, wherein each of the first laterally inner assembly and the second laterally inner assembly comprises: a support having a stepped portion supporting the battery module, an upper vertical portion extending vertically upward from an outer edge of the stepped portion, and a lower vertical portion extending vertically downward from an inner edge of the stepped portion; and a connecting member vertically disposed, and having an inner side connected with an upper vertical portion of the supporting member and an outer side connected with an inner side of a corresponding one of the first and second lateral side walls, wherein a plurality of through holes corresponding to the connecting member are opened on the lower vertical portion to perform connection of the connecting member to the inner side of the corresponding lateral side wall through the plurality of through holes. Compared with the assembly process that the connecting piece is welded on the side wall of the shell at one station and then the supporting piece is welded on the connecting piece at the next station in the prior art, the battery box and the assembly method thereof provided by the invention can fix the connecting piece on the supporting piece before the battery box is assembled, and the connecting piece and the supporting piece are connected to form the first transverse inner assembly and the first transverse outer assembly which are welded on the shell through the plurality of through holes, so that the welding gun can weld the connecting piece on the side wall of the shell through the through holes when the connecting piece and the supporting piece are welded on the shell. This can reduce the number of stations required to assemble the battery case. While securing the connector to the support prior to assembly is less costly than adding one station. And the performance of the battery box and the battery mounted on the battery box is not affected due to the through holes. Therefore, the battery box provided by the invention not only can meet the performance requirement, but also reduces the number of assembly stations and simplifies the assembly process and steps, thereby reducing the production cost
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A battery compartment for a vehicle, comprising:
a housing formed in a box shape having an opening and having a first lateral side wall at a proximal end, a second lateral side wall at a distal end, and a first longitudinal side wall and a second longitudinal side wall connected between the first lateral side wall and the second lateral side wall;
A first transverse inner assembly and a first transverse outer assembly disposed transversely inward and outward of the first transverse sidewall, respectively; and
A second transverse inner member and a second transverse outer member disposed transversely inward and outward of the second transverse sidewall, respectively, characterized in that,
Each of the first and second inner transverse components comprises:
A support having a stepped portion supporting the battery module, an upper vertical portion extending vertically upward from an outer edge of the stepped portion, and a lower vertical portion extending vertically downward from an inner edge of the stepped portion; and
A connecting member vertically disposed and having an inner side connected with the upper vertical portion of the supporting member and an outer side connected with an inner side of the corresponding one of the first and second lateral side walls,
Wherein a plurality of through holes corresponding to the connecting pieces are opened on the lower vertical portion to perform connection of the connecting pieces to the inner sides of the corresponding lateral side walls through the plurality of through holes,
Wherein the first inner and outer transverse components are assembled prior to the first inner and outer transverse components being installed, and the second inner transverse component is assembled prior to the second inner and outer transverse components being installed, the second outer transverse component being a unitary body that does not require prior assembly; forming the first and second inner transverse components by fixing the connector to the upper vertical portion of the support, and forming the first outer transverse component by fixing side brackets to both ends of the first outer transverse component body, respectively; the connector of the first inner transverse component, the first outer transverse component body of the first outer transverse component are welded to a first transverse sidewall and the connector of the second inner transverse component, the second outer transverse component are welded to a second transverse sidewall simultaneously with a welding gun through a plurality of through holes on the lower vertical portion of the support, and the side brackets are welded to a first longitudinal sidewall and a second longitudinal sidewall at both ends of the first transverse sidewall, respectively, through side-through holes.
2. The battery compartment of claim 1, wherein the plurality of through-holes are laterally uniformly disposed on the lower vertical portion.
3. The battery compartment of claim 2, wherein the first lateral outer assembly includes a first lateral outer assembly body and side brackets provided at both ends of the first lateral outer assembly body and connected to the first and second longitudinal side walls at both ends of the first lateral side wall, respectively.
4. A battery compartment as claimed in claim 3, wherein the first lateral outer assembly body is provided at both ends with side-through holes respectively corresponding to the respective side brackets, so that the connection of the respective side brackets to the first and second longitudinal side walls at both ends of the first lateral side wall is performed through the side-through holes.
5. The battery compartment of claim 4, further comprising:
a first bottom member horizontally spanning the bottom of the housing proximal end and the bottom of the first laterally outer assembly body to connect the bottom of the housing proximal end and the first laterally outer assembly body simultaneously; and
A second bottom member horizontally spans the bottom of the distal housing end and the bottom of the second laterally outer assembly to connect the bottom of the distal housing end and the second laterally outer assembly simultaneously.
6. The battery compartment of claim 5, further comprising:
A first side member longitudinally disposed outboard of the first longitudinal side wall; and
And a second side member longitudinally disposed outboard of the second longitudinal side wall.
7. The battery compartment of claim 6, further comprising third and fourth transverse members connected between the first and second longitudinal side walls parallel to the first and second transverse inner members, wherein the third and fourth transverse members are spaced apart and located between the first and second transverse inner members.
8. The battery case according to claim 7, wherein fastening holes through which fasteners pass to fasten the battery modules are provided on the stepped portion of the support of each of the first and second lateral inner assemblies and the third and fourth lateral assemblies.
9. A method of assembling a battery cartridge according to any one of claims 1 to 8, comprising:
Forming a first and a second inner lateral assemblies by fixing the connection member to the upper vertical portion of the support member, and forming a first outer lateral assembly by fixing the side brackets to both ends of the first outer lateral assembly body, respectively;
Welding a welding gun to the first lateral side wall and the second lateral side wall simultaneously through a plurality of through holes on the lower vertical portion of the support, and welding the side brackets to the first and second longitudinal side walls at both ends of the first lateral side wall respectively through side-through holes; and
The first base member, the second base member, the first side member, and the second side member are mounted.
10. A vehicle comprising a battery compartment according to any one of claims 1-8.
CN201910320081.6A 2019-04-19 2019-04-19 Battery box for vehicle, assembling method of battery box and vehicle Active CN111864127B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201910320081.6A CN111864127B (en) 2019-04-19 2019-04-19 Battery box for vehicle, assembling method of battery box and vehicle
FR2003697D FR3095168A3 (en) 2019-04-19 2020-04-14 AUTOMOTIVE BATTERY PACK, AND METHOD OF ASSEMBLY OF SUCH BATTERY PACK.
FR2003697A FR3095168B3 (en) 2019-04-19 2020-04-14 AUTOMOTIVE BATTERY PACK, AND METHOD OF ASSEMBLING SUCH BATTERY PACK.

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CN111864127B true CN111864127B (en) 2024-06-18

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FR3140310A1 (en) 2022-10-04 2024-04-05 Psa Automobiles Sa ELECTRIC OR HYBRID VEHICLE BATTERY BOX COVER DEVICE WITH INTERMEDIATE SHIMS
FR3140583A1 (en) 2022-10-05 2024-04-12 Psa Automobiles Sa ELECTRIC OR HYBRID VEHICLE WITH BATTERY BOX FIXED UNDER THE BODY BY REINFORCEMENTS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101497305A (en) * 2007-12-14 2009-08-05 三菱自动车工业株式会社 Battery unit mounting structure for electric vehicle
CN204488460U (en) * 2014-12-31 2015-07-22 比亚迪股份有限公司 For vehicle power brick bracket assembly and there is its vehicle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100257007B1 (en) * 1996-11-13 2000-06-01 정몽규 Battery tray connection structure of electric automobile
US6339204B1 (en) * 1999-11-18 2002-01-15 Honda Giken Kogyo Kabushiki Kaisha Apparatus for assembling floor of vehicle
JP5880086B2 (en) * 2012-01-31 2016-03-08 三菱自動車工業株式会社 Battery container
DE102012105140B4 (en) * 2012-06-14 2021-09-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Motor vehicle with a body shell, a battery module and a device for fastening the battery module to the body shell of the motor vehicle
CN106163848A (en) * 2014-01-21 2016-11-23 互动的全电动汽车有限责任公司 Electric power promotes vehicle
JP6304587B2 (en) * 2014-03-06 2018-04-04 三菱自動車工業株式会社 Battery pack for electric vehicles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101497305A (en) * 2007-12-14 2009-08-05 三菱自动车工业株式会社 Battery unit mounting structure for electric vehicle
CN204488460U (en) * 2014-12-31 2015-07-22 比亚迪股份有限公司 For vehicle power brick bracket assembly and there is its vehicle

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FR3095168A1 (en) 2020-10-23
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