CN114069143A - Magnesium alloy battery box for medium and large-sized vehicles and manufacturing method thereof - Google Patents
Magnesium alloy battery box for medium and large-sized vehicles and manufacturing method thereof Download PDFInfo
- Publication number
- CN114069143A CN114069143A CN202111374502.7A CN202111374502A CN114069143A CN 114069143 A CN114069143 A CN 114069143A CN 202111374502 A CN202111374502 A CN 202111374502A CN 114069143 A CN114069143 A CN 114069143A
- Authority
- CN
- China
- Prior art keywords
- plate
- bottom plate
- water channel
- magnesium alloy
- box
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell 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
- H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
- H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
- H01M50/222—Inorganic material
- H01M50/224—Metals
-
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/236—Hardness
-
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
-
- 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
- H01M50/289—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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Inorganic Chemistry (AREA)
- Aviation & Aerospace Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
A magnesium alloy battery box for a medium-large vehicle and a manufacturing method thereof belong to the technical field of battery boxes of new energy vehicles, and disclose a structure and a method for welding after splitting the box body into a left box body, a right box body, a water channel bottom plate, a front end plate, a rear end plate, a first reinforcing rib partition plate and a second reinforcing rib partition plate; the left box body comprises a left bottom plate, a left side plate and a plurality of battery mounting seats, and the right box body comprises a right bottom plate, a right side plate and a plurality of battery mounting seats which are all formed by magnesium alloy integrated three-level plate extruded profiles; the left bottom plate, the water channel bottom plate and the right bottom plate are welded to form a whole water channel box bottom; the integral waterway box bottom is divided into a left part, a middle part and a right part for manufacturing, so that the structural volume of the integral manufacturing is reduced; the left box body is formed by taking the bottom of the left water channel box as a left bottom plate and combining the left bottom plate with the left side plate and the battery mounting seat, so that the overall connection strength of the left box body can be effectively improved.
Description
Technical Field
The invention belongs to the technical field of new energy automobile battery boxes, and particularly relates to a magnesium alloy battery box for a medium-sized and large-sized automobile and a manufacturing method thereof.
Background
The new energy automobile is the most ideal and most promising green vehicle for replacing the fuel automobile, and the related problems of the new energy automobile are more and more valued by people along with the rise of the new energy automobile. The electric new energy vehicles are mainly classified into five types, namely EV (pure electric), HEV (hybrid electric vehicle), PHEV (plug-in hybrid electric vehicle), EREV (extended range electric vehicle), and FCEV (fuel cell), and the five types of electric new energy vehicles are driven by electric power as a main energy source, so that the safety and endurance of the battery become the most concerned problems. The battery box is a carrier and a protection device of the battery, and an important component of a vehicle-mounted system, and the advantages of the structure of the battery box can directly influence the safety and the service life of the battery. The battery box of the electric automobile not only needs to accommodate all the battery cores and a management system, but also needs to meet the requirements of 12 items relating to a battery pack in the battery safety performance requirements of GB/T31467.3, such as vibration, extrusion, falling, water immersion, fire burning and the like.
At present, a battery box of an electric automobile generally adopts a steel structure box body, is formed by stamping and processing a metal plate, and has the disadvantages of heavy weight, complex processing technology, low corrosion resistance and incapability of shielding electromagnetic interference; the aluminum alloy electromagnetic box is relatively portable, but has high comprehensive cost and weak impact resistance, and cannot shield electromagnetic interference. The battery boxes made of the two materials have certain problems in practical application, and particularly, the battery boxes cannot judge whether the battery direction is reversed or not in time when the battery is placed into the battery boxes due to the fact that the structure of the battery boxes is relatively standard, and faults are often caused.
Therefore, patent document CN 108103334 a discloses a production process of a whole magnesium alloy battery box, and the manufacturing process belongs to a whole die-casting molding process, and mainly aims at a small battery box. In new energy vehicles, particularly high-endurance new energy vehicles, more batteries are needed, and medium-and large-sized battery boxes are needed. When the medium-large battery box is integrally formed by die casting, the defects of insufficient forming, low structural strength and the like can occur due to the large structure.
Disclosure of Invention
The invention aims to solve the technical problem that magnesium alloy materials are adopted to carry out segmentation extrusion or die casting, then integral welding forming is carried out, and a cooling flow channel is integrally formed into a flow channel bottom plate so as to improve the integral strength, thereby providing a battery box which has strong impact resistance and yield resistance, fast heat dissipation and greatly reduced integral weight, and a positioning pin is arranged at a non-centrosymmetric position so as to avoid reversely assembling the battery.
In order to solve the technical problem, the technical scheme adopted by the invention is that the magnesium alloy battery box for the medium-large vehicle comprises a box body, and is characterized in that the box body comprises a left box body, a right box body, a water channel bottom plate, a front end plate, a rear end plate, a first reinforcing rib partition plate and a second reinforcing rib partition plate; the left box body comprises a left bottom plate, a left side plate and a plurality of battery mounting bosses, the left bottom plate and the left side plate are generated in a mutually perpendicular mode, one side of each battery mounting boss is fixedly generated on the left bottom plate, and the other adjacent side of each battery mounting boss is fixedly generated on the left side plate, so that the battery mounting bosses not only can play a role of mounting seats, but also can further enhance the supporting strength of the left bottom plate and the connecting strength between the left bottom plate and the left side plate; the magnesium alloy integrated three-level plate extrusion profile is formed by integrally connecting a transverse plate, a vertical plate and a middle step plate which are vertical to each other and formed by extruding magnesium alloy materials, then the middle step plate is divided into a plurality of sections, the middle section between the two adjacent sections is removed, the rest sections are used as battery installation bosses, the transverse plate is used as a left bottom plate, the vertical plate is used as a left side plate, and a left box body is formed together; the right box body comprises a right bottom plate, a right side plate and a plurality of battery mounting bosses, the right bottom plate and the right side plate are generated in a mutually perpendicular mode, one side of each battery mounting boss is fixedly generated on the right bottom plate, and the other adjacent side of each battery mounting boss is fixedly generated on the right side plate, so that the battery mounting bosses not only can play a role of mounting seats, but also can further enhance the supporting strength of the right bottom plate and the connecting strength between the right bottom plate and the right side plate; water channels are arranged in the left bottom plate and the right bottom plate; the water channel bottom plate, the front end plate, the rear end plate, the first reinforcing rib partition plate and the second reinforcing rib partition plate are respectively formed by integrally extruding magnesium alloy sections; the left bottom plate of the left box body is welded with the left side of the water channel bottom plate, the right bottom plate of the right box body is welded with the right side of the water channel bottom plate, and the welding adopts friction stir welding; the die-cast six magnesium alloy water channel baffles are respectively welded on the front side and the rear side edges of the water channels in the left base plate, the water channel base plate and the right base plate, so that the left base plate, the water channel base plate and the right base plate sequentially and jointly form a whole water channel box bottom with an integral flow channel, and the welding adopts laser welding; the left end face and the right end face of the front end plate are respectively welded with the front inner side faces of the left side plate and the right side plate, the lower side face of the front end plate is welded with the front upper side face of the whole water channel box bottom, the left end face and the right end face of the rear end plate are respectively welded with the rear inner side faces of the left side plate and the right side plate, the lower side face of the rear end plate is welded with the rear upper side face of the whole water channel box bottom, the left end face and the right end face of the first reinforcing rib partition plate and the right end face of the second reinforcing rib partition plate are respectively welded on the inner walls of the left side plate and the right side plate in sequence, the lower side faces of the first reinforcing rib partition plate and the second reinforcing rib partition plate are respectively welded on the upper side face of the whole water channel box bottom in sequence, and the welding adopts laser welding to jointly form the integral magnesium alloy battery box for medium and large vehicles; therefore, the box bottom and the heat dissipation water tank are combined into a water channel box bottom, so that the strength of the box bottom can be enhanced, the water channel can be closer to a battery, the heat dissipation effect is improved, and the used materials can be reduced; the integral water channel box bottom is divided into a left part, a middle part and a right part for manufacturing, the left part of the water channel box bottom is used as a left bottom plate and is combined with a battery mounting boss to jointly form a three-level right-angle plate type structure of a left box body, and the three-level right-angle plate type structure is made of magnesium alloy integrated three-level plate section extruded sections, so that the integral connection strength of the left box body can be effectively improved; similarly, the bottom of the right water channel box is used as a right bottom plate and forms a right box body together with the right side plate in combination with the battery mounting boss, and the three-level right-angle plate structure is formed by the magnesium alloy integrated three-level extruded section bar, so that the overall strength of the right box body can be effectively improved; welding the first reinforcing rib partition plate and the second reinforcing rib partition plate on the left side plate, the whole water channel box bottom and the right side plate to serve as partition plates and reinforcing rib plates; the integral strength of the box body can be effectively improved on the whole, and the magnesium alloy battery box for the medium-large vehicle, which has high strength, quick heat dissipation and light weight, can be manufactured according to the structural welding method.
Furthermore, the left bottom plate and the right bottom plate both extend backwards out of the rear end plate, the left bottom plate and the right bottom plate extending out of the rear end plate are respectively provided with a water channel opening communicated with a water channel, one of the water channel opening is a water inlet, the other one of the water channel opening is a water outlet, and the water inlet and the water outlet are respectively welded with a circular opening boss; the water inlet nozzle is arranged on the circular opening boss of the water inlet, and the water outlet nozzle is arranged on the circular opening boss of the water outlet; the welding adopts laser welding, the ring mouth boss is used for connecting water inlet and water injection well choke, guarantees follow-up water injection well choke and goes out the installation stability and the reliability of water injection well choke.
Furthermore, an installation flange is welded on the outer side wall of the rear end plate; the welding is laser welding.
Furthermore, L-shaped buckles are welded on the inner side walls of the left side plate, the rear end plate and the right side plate; the welding is laser welding.
Furthermore, the welding has N type buckle on the inside wall of front end plate, the welding adopts laser welding.
Furthermore, a positioning pin and a steel wire thread insert are assembled on the battery mounting boss, and the steel wire thread inserts are assembled on the left side plate and the right side plate.
Furthermore, the upper end faces of the left side plate, the right side plate, the front end plate and the rear end plate are provided with rivet nuts.
Furthermore, the positioning pins on the battery mounting bosses on the left box body and the right box body are in a non-centrosymmetric position structure, the non-centrosymmetric position structure means that after the magnesium alloy battery box is integrally rotated by 180 degrees in a horizontal plane, the positions of the positioning pins on the left box body are not overlapped with the positions of the positioning pins on the right box body before rotation, so that when the battery is mounted, if the battery is reversely mounted, the battery cannot be mounted, a worker is prompted to change the direction to the correct direction, and the error that the positive electrode and the negative electrode are reversely connected can be avoided.
A manufacturing method of a magnesium alloy battery box for medium and large vehicles is characterized by comprising the following steps:
the magnesium alloy integrated three-level plate extrusion profile is formed by extruding magnesium alloy materials to form a transverse plate, a vertical plate and a middle step plate which are mutually perpendicular and integrally connected, and arranging a water channel in the transverse plate.
The diaphragm in using the three-level board of magnesium alloy integral type extrusion section bar is regarded as left bottom plate, riser as the left side board, cuts apart into a plurality of sections with middle step board to remove the interlude between two adjacent sections, battery installation boss is all regarded as to a plurality of sections of remaining, constitutes left box jointly.
And thirdly, a transverse plate in the magnesium alloy integrated three-level plate extruded profile serves as a right bottom plate, a vertical plate serves as a right side plate, the middle step plate is divided into a plurality of sections, the middle section between the two adjacent sections is removed, and the rest sections serve as battery mounting bosses to jointly form a right box body.
The magnesium alloy integrated extrusion section bars respectively form a water channel bottom plate, a front end plate, a rear end plate, a first reinforcing rib partition plate and a second reinforcing rib partition plate.
Fifthly, adopting a friction stir welding joint seam between the left bottom plate of the left box body and the left side of the water channel bottom plate, adopting a friction welding joint seam between the right bottom plate of the right box body and the right side of the water channel bottom plate, and enabling the rear ends of the left bottom plate and the right bottom plate to extend backwards out of the rear end of the water channel bottom plate.
Sixthly, die-casting six water channel baffles by using magnesium alloy materials, and respectively welding the six water channel baffles on the front side and the rear side edges of a water channel in the left bottom plate, the water channel bottom plate and the right bottom plate by using laser, so that the left bottom plate, the water channel bottom plate and the right bottom plate sequentially and jointly form a whole water channel box bottom with an integral flow channel.
Welding the end faces of the left end and the right end of the front end plate with the inner side faces of the front ends of the left side plate and the right side plate respectively, and welding the lower side face of the front end plate with the upper side face of the front end of the whole waterway box bottom; will the rear end plate about the end terminal surface respectively with the rear end medial surface welding of left side board and right side board, simultaneously will the downside of rear end plate and the rear end of monoblock water course bottom of the case side weld, and make left side bottom plate and right bottom plate all stretch out behind the rear end plate, the welding adopts laser welding.
And the left end face and the right end face of the first reinforcing rib partition plate and the left end face and the right end face of the second reinforcing rib partition plate are respectively and sequentially welded on the inner walls of the left side plate and the right side plate, the lower side faces of the first reinforcing rib partition plate and the second reinforcing rib partition plate are respectively and sequentially welded on the upper side face of the bottom of the whole waterway box, and the welding is laser welding.
Therefore, the left box body, the right box body, the water channel bottom plate, the front end plate, the rear end plate, the first reinforcing rib partition plate and the second reinforcing rib partition plate jointly form the integral magnesium alloy battery box for the medium-large vehicle.
Further, the method also comprises the following steps:
the self-sustaining skin digs a water channel opening communicated with a flow channel on the left bottom plate and the right bottom plate which extend out of the rear end plate respectively, wherein one is a water inlet, and the other is a water outlet; the water inlet and the water outlet are respectively welded with a circular boss; the welding is laser welding.
The mounting flange is welded on the outer side wall of the rear end plate, and the welding is laser welding.
The pull is in welding L type buckle on the inside wall of left side board, back end plate and right side board, the welding adopts laser welding.
The well is in weld N type buckle on the inside wall of front end plate, the welding adopts the laser welding.
The crater generated by welding is processed in the selection mode; and the crater processing adopts a V8 processing center to carry out processing and grinding.
And (4) putting the whole battery box into a micro-arc oxidation line for oxidation treatment.
Assembling a positioning pin with a normal access on the battery installation boss, smearing a thread fastening agent on the positioning pin and screwing tightly; the overall installation position structure of the positioning pins is a non-centrosymmetric position structure, wherein the non-centrosymmetric position structure means that after the magnesium alloy battery box is integrally rotated for 180 degrees in a horizontal plane, each positioning pin on the left box body is not overlapped with each positioning pin on the right box body before rotation.
The steel wire thread sleeves are arranged on the battery mounting bosses in the water-in-water mode to play a role in fixing the battery mounting; the left side wall and the right side wall are provided with steel wire thread sleeves which play a role in fixing the battery box on the frame; and (4) coating a thread fastening agent on the steel wire thread insert and tightening.
⒄ rivet-mounting rivet nuts on the upper end faces of the left side plate, the right side plate, the front end plate and the rear end plate, and reserving a pre-mounting position for mounting the battery box cover.
And in a middle or high level, the whole assembled battery box is put into a spraying assembly line for spraying paint, and the spraying paint treatment adopts spraying surface paint and then maintenance.
⒆ finally, a water inlet nozzle is arranged on the annular opening boss of the water inlet, and a water outlet nozzle is arranged on the annular opening boss of the water outlet, so that the finished product of the integral magnesium alloy battery box for the medium and large vehicles is obtained.
Compared with the prior art, the invention has the following beneficial effects:
the integral water channel box bottom is divided into a left part, a middle part and a right part for manufacturing, so that the structural volume of the whole manufacturing is reduced; the left water channel box bottom is used as a left bottom plate and is combined with a battery mounting boss to form a three-level right-angle plate type structure of which the left box body is made of a magnesium alloy integrated three-level plate profile extruded profile, so that the integral connection strength of the left box body can be effectively improved; similarly, the box bottom of the right water channel is used as a right bottom plate to form a right box body together with the right side plate in combination with the battery installation boss, and the three-level right-angle plate structure is formed by the magnesium alloy integrated three-level extruded section, so that the overall strength of the right box body can be effectively improved.
The water channel box bottom is formed by combining the box bottom and the heat dissipation water tank into a whole, so that the strength of the box bottom can be enhanced, the water channel can be closer to a battery, the heat dissipation effect is improved, and the use materials can be reduced.
The first reinforcing rib partition plate and the second reinforcing rib partition plate are welded on the left side plate, the whole water channel box bottom and the right side plate, and can be used as partition plates and reinforcing rib plates; the integral strength of the box body can be effectively improved on the whole, and the magnesium alloy battery box for the medium-large vehicle, which has high strength, quick heat dissipation and light weight, can be manufactured according to the structural welding method.
The overall installation position structure of the positioning pin is made into a non-centrosymmetric position structure, so that the battery can be prevented from being reversely installed, and the anode and the cathode of the battery can be prevented from being reversely connected.
The magnesium alloy battery box is made of the magnesium alloy material, and the specific gravity of the magnesium alloy battery box is only 23% of steel and 64% of aluminum. The composite material has the advantages of small specific gravity, high specific strength, high specific rigidity, good cutting processing and die-casting process performance and the like; under the power-on state of the battery, the current can change when the electric automobile is started, the current change can interfere with the magnetic field, and the battery box made of the existing metal material except the magnesium alloy material has the battery shielding effect, and other practical metals do not have the electromagnetic shielding effect; the magnesium alloy battery box for the medium and large-sized vehicles is applied to new energy vehicles, has the advantages of shock absorption, noise reduction, electromagnetic shielding, impact resistance, high-speed heat dissipation, improvement of the driving comfort of the vehicles, energy conservation, consumption reduction, low emission, low cost, recyclability and the like.
Drawings
Fig. 1 is a schematic overall oblique view structure diagram of a magnesium alloy battery box for a large vehicle according to the present invention.
Fig. 2 is a schematic structural view of the left box body, the right box body and the water channel bottom plate in fig. 1 after being disassembled.
Fig. 3 is a schematic structural view of the front end plate, the rear end plate, and the first and second rib separators of fig. 1 after being disassembled.
Fig. 4 is a schematic cross-sectional structure view of a hollow position of a whole bottom of the waterway box formed by sequentially friction-welding the left bottom plate, the waterway bottom plate and the right bottom plate in fig. 1, and an arrow in the drawing indicates a water flow direction after water is injected.
FIG. 5 is a schematic structural view of a right box made of an extruded magnesium alloy integrated three-level plate.
In the figure: 1. the novel water-saving tank comprises a left tank body, a right tank body, a water channel bottom plate, a front end plate, a rear end plate, a first reinforcing rib partition plate, a second reinforcing rib partition plate, a left bottom plate, a left side plate, a battery mounting boss, a right bottom plate, a right side plate, a battery mounting boss, a water inlet nozzle, a water outlet nozzle, a mounting flange, an L-shaped fastener, an N-shaped fastener, a positioning pin, a steel wire screw sleeve, a pull rivet nut, a transverse plate, a vertical plate, a middle step plate and a magnesium alloy integrated three-level plate extrusion section bar, wherein the left tank body, the right tank body, the water channel bottom plate, the front end plate, the rear end plate, the water-saving tank body and the magnesium alloy integrated three-level plate extrusion section bar.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to illustrate the invention but not to limit it further, and should not be construed as limiting the scope of the invention.
Example 1.
As shown in the figure, the magnesium alloy battery box for the medium-large vehicle is manufactured, and due to the large structure of the medium-large battery box, the defects of insufficient forming, low structural strength and the like can occur when the medium-large battery box is formed by integral die casting, and the box body of the battery box is divided into seven structural components including a left box body 1, a right box body 2, a water channel bottom plate 3, a front end plate 4, a rear end plate 5, a first reinforcing rib partition plate 6 and a second reinforcing rib partition plate 7; the left box body 1 comprises a left bottom plate 8, a left side plate 9 and a plurality of battery mounting bosses 10, wherein the left bottom plate 8 and the left side plate 9 are perpendicular to each other and are directly formed, one side of each battery mounting boss 10 is fixedly formed on the left bottom plate 8, and the other adjacent side of each battery mounting boss 10 is fixedly formed on the left side plate 9; the left bottom plate 8, the left side plate 9 and the battery mounting bosses 10 are made of magnesium alloy integrated three-level plate extruded profiles 26, the magnesium alloy integrated three-level plate extruded profiles 26 are formed by integrally connecting mutually perpendicular transverse plates 23, vertical plates 24 and middle step plates 25 which are formed by extruding magnesium alloy materials, then the middle step plates 25 are divided into a plurality of sections, the middle sections between the two adjacent sections are removed, the rest sections are used as the battery mounting bosses 10, and the transverse plates 23 are used as the left bottom plate 8 and the vertical plates 24 are used as the left side plate 9 to jointly form a left box body 1; the right box body 2 comprises a right bottom plate 11, a right side plate 12 and a plurality of battery mounting bosses 10, the right bottom plate 11 and the right side plate 12 are perpendicular to each other and are directly generated, one side of each battery mounting boss 10 is fixedly generated on the right bottom plate 11, and the other adjacent side of each battery mounting boss is fixedly generated on the right side plate 12; the right bottom plate 11, the right side plate 12 and the plurality of battery mounting bosses 10 are also made of magnesium alloy integrated three-level plate extruded profiles 26; water channels are arranged in the left bottom plate 8 and the right bottom plate 11; the water channel bottom plate 3, the front end plate 4, the rear end plate 5, the first reinforcing rib partition plate 6 and the second reinforcing rib partition plate 7 are respectively made of magnesium alloy integrated extruded sections; a left bottom plate 8 of the left box body 1 and the left side of the water channel bottom plate 3 are welded together, a right bottom plate 11 of the right box body 2 and the right side of the water channel bottom plate 3 are welded together by friction stir welding; the six magnesium alloy water channel baffles 13 are respectively welded on the front side and the rear side of the water channel in the left base plate 8, the water channel base plate 3 and the right base plate 11 in a die-casting manner, so that the left base plate 8, the water channel base plate 3 and the right base plate 11 sequentially and jointly form a whole water channel box bottom with an integral flow channel, and the welding adopts laser welding; both ends terminal surface welds with the front end medial surface of left side board 9 and right side board 12 respectively about front end plate 4, the downside of front end plate 4 and the front end of the monoblock water course bottom of the case side weld on, the end terminal surface welds with the rear end medial surface of left side board 9 and right side board 12 respectively about back end plate 5, the downside of back end plate 5 and the rear end of the monoblock water course bottom of the case side weld on, the both ends terminal surface welds on the inner wall of left side board 9 and right side board 12 respectively in proper order about first stiffening rib baffle 6 and second stiffening rib baffle 7, the downside of first stiffening rib baffle 6 and second stiffening rib baffle 7 welds on the last side of the monoblock water course bottom of the case respectively in proper order, and this welding adopts laser welding, constitutes integral automobile-used magnesium alloy battery box in medium and large-scale like this jointly.
The left bottom plate 8 and the right bottom plate 11 both extend backwards out of the rear end plate 5, the left bottom plate 8 and the right bottom plate 11 extending out of the rear end plate 5 are respectively provided with a water channel opening communicated with a water channel, one of the water channel openings is a water inlet, the other water channel opening is a water outlet, and the water inlet and the water outlet are respectively welded with a circular opening boss 14; the water inlet nozzle 15 is arranged on the circular opening boss 14 of the water inlet, and the water outlet nozzle 16 is arranged on the circular opening boss 14 of the water outlet.
Then, welding a mounting flange 17 on the outer side wall of the rear end plate 5; l-shaped buckles 18 are welded on the inner side walls of the left side plate 9, the rear end plate 5 and the right side plate 12; and an N-shaped buckle 19 is welded on the inner side wall of the front end plate 4, and the welding adopts laser welding.
Then, assembling a positioning pin 20 and a steel wire thread insert 21 on the battery mounting boss 10; the left side plate 9 and the right side plate 12 are provided with wire thread inserts 21; the upper end faces of the left side plate 9, the right side plate 12, the front end plate 4 and the rear end plate 5 are provided with blind rivet nuts 22; the positioning pins 20 mounted on the battery mounting bosses 10 on the left case 1 and the right case 2 are integrally mounted in a non-centrosymmetric position structure, wherein the non-centrosymmetric position structure means that after the magnesium alloy battery case is integrally rotated by 180 degrees in a horizontal plane, the position of the left case 1 coincides with the position of the right case 2 before rotation, but the position of each positioning pin 20 on the left case 1 does not coincide with the position of each positioning pin 20 on the right case 2 before rotation.
Example 2.
A manufacturing method of a magnesium alloy battery box for medium and large vehicles comprises the following steps:
as shown in fig. 5, a magnesium alloy integrated three-stage plate extruded profile 26 is formed by extruding a transverse plate 23, a vertical plate 24, and an intermediate step plate 25, which are integrally connected to each other, from a magnesium alloy material, and providing water channels in the transverse plate 23, wherein the vertical plate 24 and the intermediate step plate 25 may be formed as hollow ribbed laths.
Secondly, regard as left bottom plate 8, riser 24 as left side board 9 with diaphragm 23 among the tertiary board extruded section bar 26 of magnesium alloy integral type, cut apart into a plurality of sections with middle step board 25 to the interlude between two adjacent sections is removed, and remaining some sections all regard as battery installation boss 10, make left box 1.
Thirdly, the transverse plate 23 in the magnesium alloy integrated three-level plate extruded section bar 26 is used as the right bottom plate 11, the vertical plate 24 is used as the right side plate 12, the middle step plate 25 is divided into a plurality of sections, the middle section between every two adjacent sections is removed, and the rest sections are all used as the battery mounting bosses 10 to form the right box body 2.
The water channel bottom plate 3, the front end plate 4, the rear end plate 5, the first reinforcing rib partition plate 6 and the second reinforcing rib partition plate 7 are respectively formed by a magnesium alloy integrated plane plate extrusion profile.
Fifthly, adopting a friction stir welding joint seam between the left bottom plate 8 of the left box body 1 and the left side of the water channel bottom plate 3, adopting a friction welding joint seam between the right bottom plate 11 of the right box body 2 and the right side of the water channel bottom plate 3, and enabling the rear ends of the left bottom plate 8 and the right bottom plate 11 to extend backwards out of the rear end of the water channel bottom plate 3.
Sixthly, die-casting six water channel baffles 13 by using magnesium alloy materials, and respectively welding the six water channel baffles 13 on the front side and the rear side edges of a water channel in the left baseplate 8, the water channel baseplate 3 and the right baseplate 11 by using laser, so that the left baseplate 8, the water channel baseplate 3 and the right baseplate 11 sequentially and jointly form a whole water channel box bottom with an integral flow channel.
Welding the end surfaces of the left end and the right end of the front end plate 4 with the inner side surfaces of the front ends of a left side plate 9 and a right side plate 12 respectively, and welding the lower side surface of the front end plate 4 with the upper side surface of the front end of the whole waterway box bottom; will the rear end plate 5 about the end terminal surface respectively with the rear end medial surface welding of left side board 9 and right side board 12, simultaneously will the downside of rear end plate 5 and the rear end of monoblock water course bottom of the case side weld on, and make left bottom plate 8 and right bottom plate 11 all stretch out backward outside rear end plate 5, the welding adopts laser welding.
And the end surfaces of the left end and the right end of the first reinforcing rib partition plate 6 and the second reinforcing rib partition plate 7 are respectively and sequentially welded on the inner walls of the left side plate 8 and the right side plate 11, the lower side surfaces of the first reinforcing rib partition plate 6 and the second reinforcing rib partition plate 7 are respectively and sequentially welded on the upper side surface of the bottom of the whole waterway box, and the welding is laser welding.
The self-sustaining skin digs a water channel opening communicated with a flow channel on the left bottom plate 8 and the right bottom plate 11 which extend out of the rear end plate 5 respectively, wherein one is a water inlet, and the other is a water outlet; a circular opening boss 14 is welded on each of the water inlet and the water outlet; the welding is laser welding.
A mounting flange 17 is welded to the outer side wall of the rear end plate 5 by laser welding.
The inner side walls of the left side plate 9, the rear end plate 5 and the right side plate 12 are welded with L-shaped buckles 18, and the welding adopts laser welding.
The N-type buckle 19 is welded on the inner side wall of the front end plate 4 in a good-quality mode, and the welding is laser welding.
The crater generated by welding is processed in the selection mode; and the crater processing adopts a V8 processing center to carry out processing and grinding.
Putting the battery box into a micro-arc oxidation line for oxidation treatment, proportioning an oxidation solution, cleaning, degreasing, oxidizing, cleaning and drying to obtain the integral magnesium alloy battery box covered with the micro-arc oxidation film.
Assembling a positioning pin 20 on the battery mounting boss 10, and smearing a thread fastening agent on the positioning pin 20 to be screwed tightly; the overall installation position structure of the positioning pins 20 is a non-centrosymmetric position structure, and the non-centrosymmetric position structure means that after the magnesium alloy battery box is rotated by 180 degrees in a horizontal plane, each positioning pin 20 on the left box body 1 is not overlapped with each positioning pin 20 on the right box body 2 before rotation.
The steel wire thread inserts 21 are arranged on the battery mounting bosses 10 in the forward and backward directions, the steel wire thread inserts 21 are arranged on the left side plate 9 and the right side plate 12 in the forward and backward directions, and the steel wire thread inserts 21 are coated with a thread fastening agent and are screwed tightly.
⒄ A blind rivet nut 22 is caulked to the upper end faces of the left and right side plates 9, 12, the front end plate 4 and the rear end plate 5.
And in a middle or high level, the whole assembled battery box is put into a spraying assembly line for spraying paint, and the spraying paint treatment adopts spraying surface paint and then maintenance.
⒆, a water inlet nozzle 15 is arranged on the annular opening boss 14 of the water inlet, and a water outlet nozzle 16 is arranged on the annular opening boss 14 of the water outlet, so that the finished product of the integral magnesium alloy battery box for the medium and large vehicles is obtained.
Therefore, the left box body 1, the right box body 2, the water channel bottom plate 3, the front end plate 4, the rear end plate 5, the first reinforcing rib partition plate 6 and the second reinforcing rib partition plate 7 jointly form the integral magnesium alloy battery box for the medium and large vehicles, which has high strength, quick heat dissipation and light weight.
Claims (10)
1. A magnesium alloy battery box for a medium-large vehicle comprises a box body, and is characterized in that the box body comprises a left box body, a right box body, a water channel bottom plate, a front end plate, a rear end plate, a first reinforcing rib partition plate and a second reinforcing rib partition plate; the left box body comprises a left bottom plate, a left side plate and a plurality of battery mounting seats, the left bottom plate and the left side plate are generated in a mutually perpendicular mode, one side of each battery mounting seat is fixedly generated on the left bottom plate, and the other adjacent side of each battery mounting seat is fixedly generated on the left side plate; the right box body comprises a right bottom plate, a right side plate and a plurality of battery mounting seats, the right bottom plate and the right side plate are generated in a mutually perpendicular mode, one side of each battery mounting seat is fixedly generated on the right bottom plate, and the other adjacent side of each battery mounting seat is fixedly generated on the right side plate; water channels are arranged in the left bottom plate and the right bottom plate; the water channel bottom plate, the front end plate, the rear end plate, the first reinforcing rib partition plate and the second reinforcing rib partition plate are respectively formed by integrally extruding magnesium alloy sections; the left bottom plate of the left box body is welded with the left side of the water channel bottom plate, and the right bottom plate of the right box body is welded with the right side of the water channel bottom plate; the other six magnesium alloy water channel baffles are respectively welded on the front side and the rear side edges of the water channels in the left bottom plate, the water channel bottom plate and the right bottom plate in a die-casting manner, so that the left bottom plate, the water channel bottom plate and the right bottom plate sequentially and jointly form a water channel box bottom with an integral flow channel; both ends terminal surface welds with the front end medial surface of left side board and right side board respectively about the front end plate, the downside of front end plate and the front end of the bottom of the water course bottom of the case side weld, the end terminal surface welds with the rear end medial surface of left side board and right side board respectively about the back end plate, the downside of back end plate and the rear end of the bottom of the water course bottom of the case side weld, both ends terminal surface welds on the inner wall of left side board and right side board respectively in proper order about first stiffening rib baffle and second stiffening rib baffle, the downside of first stiffening rib baffle and second stiffening rib baffle welds on the last side of the bottom of the case of the water course respectively in proper order, constitutes integral automobile-used magnesium alloy battery box of medium and large-scale jointly.
2. The magnesium alloy battery box for the medium and large vehicles according to claim 1, wherein the left bottom plate and the right bottom plate both extend backwards outside the rear end plate, and the left bottom plate and the right bottom plate extending outside the rear end plate are respectively provided with a water channel opening communicated with a water channel, one of the water channel opening is a water inlet, the other one of the water channel opening is a water outlet, and a ring opening boss is welded on each of the water inlet and the water outlet; the water inlet water nozzle is mounted on the circular opening boss of the water inlet, and the water outlet water nozzle is mounted on the circular opening boss of the water outlet.
3. The magnesium alloy battery box for medium and large vehicles according to claim 1, wherein a mounting flange is welded to an outer side wall of the rear end plate.
4. The magnesium alloy battery box for medium and large vehicles according to claim 1, wherein the left side plate, the rear end plate and the right side plate have L-shaped buckles welded to inner side walls thereof.
5. The magnesium alloy battery box for medium and large vehicles according to claim 1, wherein an N-shaped buckle is welded on the inner side wall of the front end plate.
6. The magnesium alloy battery box for medium and large vehicles according to claim 1, wherein the battery mounting seat is provided with a positioning pin and a wire thread insert.
7. The magnesium alloy battery box for medium and large vehicles according to claim 1, wherein the upper end surfaces of the left side plate, the right side plate, the front end plate and the rear end plate are provided with rivet nuts.
8. The magnesium alloy battery box for medium and large vehicles according to claim 1, wherein the positioning pins on the battery mounting seats on the left and right box bodies are in a non-centrosymmetric structure.
9. A manufacturing method of a magnesium alloy battery box for medium and large vehicles is characterized by comprising the following steps:
the magnesium alloy integrated three-level plate extrusion profile comprises a transverse plate, a vertical plate and a middle step plate which are integrally connected and perpendicular to each other, wherein a magnesium alloy material is extruded to form the transverse plate, the vertical plate and the middle step plate, and a water channel is arranged in the transverse plate;
the transverse plate in the magnesium alloy integrated three-level plate extruded section serves as a left bottom plate and a vertical plate and serves as a left side plate, the middle bedplate is divided into a plurality of sections, the middle sections between the two adjacent sections are removed, and the rest sections serve as battery mounting seats to jointly form a left box body.
Thirdly, a transverse plate in the magnesium alloy integrated three-level plate extruded profile is used as a right bottom plate, a vertical plate in the magnesium alloy integrated three-level plate extruded profile is used as a right side plate, the middle bedplate is divided into a plurality of sections, a middle section between every two adjacent sections is removed, and the rest sections are used as battery mounting seats to jointly form a right box body;
the magnesium alloy integrated extrusion profile is used for respectively forming a water channel bottom plate, a front end plate, a rear end plate, a first reinforcing rib partition plate and a second reinforcing rib partition plate;
fifthly, adopting a friction stir welding joint seam between the left bottom plate of the left box body and the left side of the water channel bottom plate, adopting a friction welding joint seam between the right bottom plate of the right box body and the right side of the water channel bottom plate, and enabling the rear ends of the left bottom plate and the right bottom plate to extend backwards out of the rear end of the water channel bottom plate;
sixthly, die-casting six water channel baffles by using magnesium alloy materials, and respectively welding the six water channel baffles on the front side and the rear side edges of a water channel in a left bottom plate, a water channel bottom plate and a right bottom plate by using laser, so that the left bottom plate, the water channel bottom plate and the right bottom plate sequentially and jointly form a water channel box bottom with an integral flow channel;
welding the end faces of the left end and the right end of the front end plate with the inner side faces of the front ends of the left side plate and the right side plate respectively, and welding the lower side face of the front end plate with the upper side face of the front end of the water channel box bottom; welding the end surfaces of the left end and the right end of the rear end plate with the inner side surfaces of the rear ends of the left side plate and the right side plate respectively, welding the lower side surface of the rear end plate with the upper side surface of the rear end of the bottom of the water channel box, and enabling the left bottom plate and the right bottom plate to extend out of the rear end plate backwards, wherein the welding is laser welding;
the left end face and the right end face of the first reinforcing rib partition plate and the left end face and the right end face of the second reinforcing rib partition plate are respectively and sequentially welded on the inner walls of the left side plate and the right side plate, the lower side faces of the first reinforcing rib partition plate and the second reinforcing rib partition plate are respectively and sequentially welded on the upper side face of the bottom of the water channel box, and the welding is laser welding;
therefore, the left box body, the right box body, the water channel bottom plate, the front end plate, the rear end plate, the first reinforcing rib partition plate and the second reinforcing rib partition plate jointly form the integral magnesium alloy battery box for the medium-large vehicle.
10. The method for manufacturing a magnesium alloy battery box for medium and large vehicles according to claim 1, characterized by further comprising the steps of:
the self-sustaining skin digs a water channel opening communicated with a flow channel on the left bottom plate and the right bottom plate which extend out of the rear end plate respectively, wherein one is a water inlet, and the other is a water outlet; the water inlet and the water outlet are respectively welded with a circular boss; the welding adopts laser welding;
the mounting flange is welded on the outer side wall of the rear end plate, and the welding adopts laser welding;
l-shaped buckles are welded on the inner side walls of the left side plate, the rear end plate and the right side plate, and laser welding is adopted for welding;
welding an N-shaped buckle on the inner side wall of the front end plate, wherein the welding is laser welding;
the crater generated by welding is processed in the selection mode;
putting the battery box into a micro-arc oxidation line as a whole to perform oxidation treatment;
assembling a positioning pin and a steel wire thread insert on the battery mounting seat; the integral installation position structure of the positioning pin is a non-centrosymmetric position structure;
riveting and assembling rivet nuts on the upper end surfaces of the left side plate, the right side plate, the front end plate and the rear end plate in a manner of being in a horizontal position;
⒄ the water inlet nozzle is mounted on the ring-opening boss of the water inlet, and the water outlet nozzle is mounted on the ring-opening boss of the water outlet.
Spray paint in the middle or high level at last, the maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111374502.7A CN114069143B (en) | 2021-11-19 | 2021-11-19 | Magnesium alloy battery box for medium and large-sized vehicles and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111374502.7A CN114069143B (en) | 2021-11-19 | 2021-11-19 | Magnesium alloy battery box for medium and large-sized vehicles and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114069143A true CN114069143A (en) | 2022-02-18 |
| CN114069143B CN114069143B (en) | 2024-02-09 |
Family
ID=80278360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111374502.7A Active CN114069143B (en) | 2021-11-19 | 2021-11-19 | Magnesium alloy battery box for medium and large-sized vehicles and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114069143B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359292A (en) * | 2017-06-26 | 2017-11-17 | 合肥国轩高科动力能源有限公司 | Liquid cooling type fixing structure of battery system |
| WO2019034097A1 (en) * | 2017-08-18 | 2019-02-21 | 上海蔚来汽车有限公司 | Battery pack housing having heat exchange function, and battery pack |
| CN208873795U (en) * | 2018-09-26 | 2019-05-17 | 东软睿驰汽车技术（沈阳）有限公司 | A kind of battery modules link block, automobile batteries and electric car |
| WO2019148630A1 (en) * | 2018-01-31 | 2019-08-08 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN209282267U (en) * | 2018-12-27 | 2019-08-20 | 观致汽车有限公司 | Battery pack lower box |
| CN209786006U (en) * | 2019-03-28 | 2019-12-13 | 纽维科精密制造江苏有限公司 | Commercial bus battery box adds water-cooling body structure |
| CN210516779U (en) * | 2019-09-19 | 2020-05-12 | 厦门金龙汽车新能源科技有限公司 | Water-cooling power battery box structure |
-
2021
- 2021-11-19 CN CN202111374502.7A patent/CN114069143B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359292A (en) * | 2017-06-26 | 2017-11-17 | 合肥国轩高科动力能源有限公司 | Liquid cooling type fixing structure of battery system |
| WO2019034097A1 (en) * | 2017-08-18 | 2019-02-21 | 上海蔚来汽车有限公司 | Battery pack housing having heat exchange function, and battery pack |
| WO2019148630A1 (en) * | 2018-01-31 | 2019-08-08 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN208873795U (en) * | 2018-09-26 | 2019-05-17 | 东软睿驰汽车技术（沈阳）有限公司 | A kind of battery modules link block, automobile batteries and electric car |
| CN209282267U (en) * | 2018-12-27 | 2019-08-20 | 观致汽车有限公司 | Battery pack lower box |
| CN209786006U (en) * | 2019-03-28 | 2019-12-13 | 纽维科精密制造江苏有限公司 | Commercial bus battery box adds water-cooling body structure |
| CN210516779U (en) * | 2019-09-19 | 2020-05-12 | 厦门金龙汽车新能源科技有限公司 | Water-cooling power battery box structure |
Non-Patent Citations (2)
| Title |
|---|
| 李仲奎: "电动汽车动力电池箱体的设计研究", 上海汽车, no. 03, pages 3 - 6 * |
| 王天波;陈茜;张兰春;贝绍轶: "电动汽车锂离子电池风冷散热结构优化设计", 电源技术, vol. 44, no. 03, pages 371 - 376 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114069143B (en) | 2024-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114954662B (en) | Split type new energy automobile body structure and assembling method thereof | |
| CN209786006U (en) | Commercial bus battery box adds water-cooling body structure | |
| CN217444536U (en) | Battery pack lower box body, battery pack and electric automobile | |
| CN105470426A (en) | Battery frame tray with water cooling plate and processing method of battery frame tray | |
| CN112117410A (en) | Power battery lower box | |
| CN211480145U (en) | Lightweight power battery box structure | |
| CN109037500A (en) | A kind of aluminium alloy power battery cabinet lower case and processing method | |
| EP4308398A1 (en) | Vehicle battery tray and method of manufacturing the same | |
| CN105291800B (en) | Hybrid vehicle IPU fixed structures | |
| CN114069143A (en) | Magnesium alloy battery box for medium and large-sized vehicles and manufacturing method thereof | |
| CN114759307B (en) | Battery pack and box assembly thereof | |
| CN110723220A (en) | Aluminum alloy lower vehicle body structure of electric vehicle | |
| CN213861832U (en) | Battery pack installation frame capable of changing batteries and automobile with battery pack installation frame | |
| CN114940217A (en) | Integrated lower vehicle body platform framework of CTB electric vehicle and vehicle | |
| CN219303839U (en) | Battery pack box, battery pack and vehicle | |
| US11465690B2 (en) | Vehicle body structure | |
| CN209401673U (en) | A kind of unitary tray for new energy car battery cabinet | |
| CN217598323U (en) | Vehicle body integrated power battery connecting structure | |
| CN111341963A (en) | Battery box body for passenger car and manufacturing method thereof | |
| CN217598708U (en) | Lower vehicle body structure and vehicle | |
| CN210576109U (en) | Lightweight aluminum box structure | |
| CN210882349U (en) | A kind of aluminum alloy lower body structure of electric vehicle | |
| CN211507725U (en) | High-strength battery box for passenger vehicle | |
| CN208344344U (en) | Pure electric vehicle central post assembly | |
| CN208655705U (en) | A kind of aluminium alloy power battery cabinet lower case |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |