CN116632428A - New energy automobile battery tray and integrated molding casting method - Google Patents

New energy automobile battery tray and integrated molding casting method Download PDF

Info

Publication number
CN116632428A
CN116632428A CN202310714966.0A CN202310714966A CN116632428A CN 116632428 A CN116632428 A CN 116632428A CN 202310714966 A CN202310714966 A CN 202310714966A CN 116632428 A CN116632428 A CN 116632428A
Authority
CN
China
Prior art keywords
mounting frame
air cooling
ventilation groove
cooling channel
new energy
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
Application number
CN202310714966.0A
Other languages
Chinese (zh)
Other versions
CN116632428B (en
Inventor
胡联茂
周于铭
师乐乐
朱冠帷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Die And Mould Manufacturing Co ltd
Original Assignee
Guangzhou Die And Mould Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Die And Mould Manufacturing Co ltd filed Critical Guangzhou Die And Mould Manufacturing Co ltd
Priority to CN202310714966.0A priority Critical patent/CN116632428B/en
Publication of CN116632428A publication Critical patent/CN116632428A/en
Application granted granted Critical
Publication of CN116632428B publication Critical patent/CN116632428B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
    • 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
    • B60L50/66—Arrangements of batteries
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • 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
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • 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
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

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

Abstract

The invention relates to a new energy automobile battery tray and an integrated molding casting method, and belongs to the technical field of die casting. The battery pack cooling device comprises a mounting frame, a plurality of partition boards fixedly arranged along the inner surface of the mounting frame in a preset mode, wherein the mounting frame is divided into a plurality of accommodating areas by the plurality of partition boards, a battery pack is mounted in each accommodating area, a cooling layer is further arranged on the bottom surface of the mounting frame, the cooling layer comprises an air cooling channel and a cooling liquid flow channel, the cooling liquid flow channel is positioned in the air cooling channel, a ventilation groove is formed in the partition boards, and the ventilation groove is respectively communicated with the accommodating areas and the air cooling channel; the air cooling channel and the ventilation groove are respectively provided with a guide vane, and the guide vanes open the air cooling channel and the ventilation groove when the temperature is higher than the preset temperature and close the air cooling channel and the ventilation groove when the temperature is lower than the preset temperature; the flow guide plate is made of the shape memory alloy material, and the invention improves the heat dissipation effect and reduces the electric quantity loss of the battery pack in a low-temperature environment by arranging the flow guide plate in the ventilation groove, and shortens the production period of the battery tray.

Description

New energy automobile battery tray and integrated molding casting method
Technical Field
The invention belongs to the technical field of die casting, and particularly relates to a new energy automobile battery tray and an integrated molding casting method.
Background
With the development of green in recent years, electric new energy automobiles are rapidly developed. Compared with the traditional automobile, the electric new energy automobile adopts a battery pack and a motor to replace gasoline and an engine, and provides clean power for the automobile. And the electric automobile has larger requirement on the battery quantity. Therefore, a battery tray for providing safety protection and good working environment for the battery pack becomes one of main core components of the electric automobile, and under the same battery technical conditions, the weight of the battery tray also directly influences the endurance of the electric automobile. In the prior art, the large-capacity battery is generally assembled in a stacking manner, so that a large amount of heat generated during running of the automobile cannot be well discharged, heat accumulation is caused to reduce the performance of the battery, and serious heat accumulation even can cause an automobile fire accident.
Currently, battery trays are mainly made of steel and aluminum. The steel pallet adopts a welding and splicing process of plates and pipes, and has the main problems that on one hand, the weight of the pallet is large, so that the power consumption of the automobile is large and the driving mileage is low; on the other hand, because the working condition of the automobile use environment has certain environment corrosion, especially coastal cities, the corrosion resistance is poor, the service life of the steel pallet is short due to corrosion, the safety coefficient is poor, and the surface treatment is needed, so that the production process has larger influence on the environment and higher cost. The aluminum tray adopts the welding process of cast aluminum and extruded profiles, and has the main problems that on one hand, the welding process is more, the product precision is difficult to control, the manufacturing process is complicated, the quality control of the tray is more difficult and the production period is longer; on the other hand, it is difficult to further optimize the weight due to the existing process limitations.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the battery tray for the new energy automobile, and solves the problem that the existing battery tray is poor in heat dissipation effect.
The invention also provides an integrated molding casting method of the battery tray of the new energy automobile, which solves the problem of longer production period caused by complicated manufacturing procedures of the existing battery tray.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a new energy automobile battery tray, includes the installing frame and presets the mode along the installing frame internal surface and fixedly is provided with a plurality of baffles, and is a plurality of the baffle separates the installing frame into a plurality of holding areas, installs the group battery in every holding area, the bottom surface of installing frame still is provided with the heat dissipation layer, the heat dissipation layer includes forced air cooling passageway and coolant liquid runner, coolant liquid runner is located forced air cooling passageway, set up the ventilation groove in the baffle, the ventilation groove communicates with holding area and forced air cooling passageway respectively.
The air cooling channel and the ventilation groove are respectively provided with a guide vane, and the guide vanes open the air cooling channel and the ventilation groove when the preset temperature is higher than the preset temperature and close the air cooling channel and the ventilation groove when the preset temperature is lower than the preset temperature.
The guide vane is made of a shape memory alloy material.
As a preferable technical scheme of the invention, the mounting frame, the partition plate and the heat dissipation layer are integrally cast and formed.
As a preferable technical scheme of the invention, the outer side wall of the mounting frame is provided with a plurality of fixing strips, the fixing strips are symmetrically arranged along the central axis of the mounting frame, and the mounting frame is connected with the vehicle body through the fixing strips.
As a preferable technical scheme of the invention, the heat dissipation layer comprises a plurality of reinforcing ribs, the reinforcing ribs are uniformly arranged on the bottom surface of the mounting frame and are arranged in one-to-one correspondence with the partition plates, and the reinforcing ribs form an air cooling channel.
As a preferable technical scheme of the invention, the partition plate comprises a base and two side plates, wherein the base is positioned on the inner bottom surface of the mounting frame, the two side plates are positioned on the top surface of the base, the top surfaces of the two side plates are connected, and a ventilation groove is formed between the two side plates and the top surface of the base.
As a preferable technical scheme of the invention, the base and the mounting frame are both made of aluminum alloy materials.
As a preferable technical scheme of the invention, the base and the mounting frame can also be prepared from carbon fiber reinforced composite materials.
Based on the new energy automobile battery tray, the invention also provides an integrated molding and casting method of the new energy automobile battery tray, which comprises the following specific steps:
s1: manufacturing a mold, and manufacturing a casting mold according to design requirements;
s2: preparing materials, namely preparing two materials which need to be integrally formed;
s3: carrying out material treatment, namely smelting, element doping, exhausting and deslagging on an aluminum alloy material and a shape memory alloy material to obtain a stable-quality molten metal;
s4: casting for the first time, and injecting aluminum alloy molten metal into a die on a low-pressure casting machine in a low-pressure mode;
s5: casting for the second time, and injecting the shape memory alloy metal liquid after the surface layer of the aluminum alloy metal liquid is hardened in the die;
s6: and taking down the casting, cooling and solidifying the casting, and then disassembling the die from the casting, and carrying out subsequent cooling and treatment.
The beneficial effects of the invention are as follows:
1. through set up the baffle in the installing frame, the bottom surface sets up the heat dissipation layer, lets the air cooling passageway in the heat dissipation layer and set up the ventilation groove intercommunication in the baffle and improve battery tray's radiating effect to set up the switch that controls the ventilation groove by the guide vane that memory alloy made at the ventilation groove, reduce the electric quantity loss of group battery under the environment of low temperature when playing the improvement radiating effect.
2. The mounting frame, the partition plate and the heat dissipation layer are integrally cast, so that the manufacturing procedures of the battery tray are reduced, and the production period is shortened.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a flow chart of the casting of a battery tray of the present invention;
FIG. 2 is a schematic view of a battery tray according to the present invention;
FIG. 3 is a schematic view of a separator according to the present invention;
FIG. 4 is a schematic diagram of a heat dissipation layer according to the present invention;
description of the main reference signs
In the figure: 1. a mounting frame; 11. a receiving area; 2. a partition plate; 21. a ventilation groove; 22. a base; 23. a side plate; 3. a heat dissipation layer; 31. an air cooling channel; 32. a cooling liquid flow passage; 4. a fixing strip; 5. reinforcing ribs; 6. and a deflector.
Detailed Description
In order to further describe the technical means and effects adopted by the invention for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-4, the embodiment provides a new energy automobile battery tray, which comprises a mounting frame 1 and a plurality of partition boards 2 fixedly arranged along the preset mode of the inner surface of the mounting frame 1, wherein the mounting frame 1 is divided into a plurality of accommodating areas 11 by the plurality of partition boards 2, a battery pack is arranged in each accommodating area 11, a heat dissipation layer 3 is further arranged on the bottom surface of the mounting frame 1, the heat dissipation layer 3 comprises an air cooling channel 31 and a cooling liquid channel 32, the cooling liquid channel 32 is positioned in the air cooling channel 31, a ventilation groove 21 is formed in the partition board 2, the ventilation groove 21 is respectively communicated with the accommodating areas 11 and the air cooling channel 31, in the actual use process, when the battery pack begins to work, heat emitted by the battery pack can be dissipated by the cooling liquid channel 32, meanwhile, the air cooling channel 31 can continuously pass through air in the running process of an automobile, this has just further improved the radiating effect, and air-cooled channel 31 communicates with holding district 11 through ventilation groove 21, this just can let cold wind get into holding district 11 from air-cooled channel 31 in, accomplish further heat dissipation to the group battery in piling up holding district 11, let current electric automobile to the great condition of battery demand, adopt the high-capacity battery to pile up the mode and assemble, lead to the automobile to produce a large amount of heat when driving and can't discharge well, cause heat accumulation and make battery performance decline, serious heat accumulation can even lead to the problem of automobile fire accident to have been solved, the condition emergence of automobile fire accident has been reduced because a large amount of heat that the group battery produced causes.
In order to better utilize heat emitted by the battery pack, the air cooling channel 31 and the ventilation groove 21 are internally provided with the guide vane 6, the guide vane 6 opens the air cooling channel 31 and the ventilation groove 21 when the temperature is higher than the preset temperature, and closes the air cooling channel 31 and the ventilation groove 21 when the temperature is lower than the preset temperature, when the heat generated by the battery pack causes the environment where the guide vane 6 is located to reach the temperature higher than the preset temperature, the guide vane 6 opens the air cooling channel 31 and the ventilation groove 21, so that cold air can enter the accommodating area 11 from the air cooling channel 31 through the ventilation groove 21 to dissipate heat of the battery pack. The mileage of the new energy automobile in a cold place is reduced to a certain extent, because the chemical reaction inside the battery is slow in the low-temperature environment, the flow property of the electrolyte is reduced, the internal resistance of the battery is increased, thereby reducing the current output capacity of the battery, in order to reduce the electric quantity of the battery caused by the air cooling channel 31 in the cold condition, when the temperature is lower than the preset temperature, the air cooling channel 31 and the ventilation groove 21 are closed by the air deflector 6, at the moment, cold air in the air cooling channel 31 cannot enter the accommodating area 11 to dissipate heat, the heat generated by the battery pack can enable the battery pack to be in a more comfortable environment, the electric quantity of the battery pack is not influenced because the cold air in the air cooling channel 31 enters the accommodating area 11, and if the heat generated by the battery pack enables the air deflector 6 to reach more than the preset temperature, and at the moment, the air cooling channel 31 and the ventilation groove 21 are opened to dissipate heat, so that the electric quantity of the battery pack is reduced in the low-temperature environment.
In order to enable the air cooling channel 31 and the ventilation groove 21 to be better controlled to be opened and closed by the air deflector 6, the air deflector 6 is made of a shape memory alloy material, wherein the shape memory alloy material is a special metal material, and has better shape memory effect, superelasticity and damping performance. Under the conditions of specific stress, temperature and the like, the shape memory alloy material can restore the original shape, and can repeatedly realize shape memory. Such materials are typically composed of alloys of titanium, nickel, copper, aluminum, and the like. Shape memory effect is one of the core properties of shape memory alloys. This effect results from the phase transformation between the martensite and austenite phases in the alloy crystals. Under the low temperature condition, the shape memory alloy presents a martensite phase, and crystal grains under the phase are in a deformed state; under high temperature conditions, the shape memory alloy assumes an austenite phase and the grains return to their original shape. The internal stresses created by these phase changes may cause the shape memory alloy to achieve a shape memory effect. Superelasticity and damping properties are yet another important property of shape memory alloys. When the shape memory alloy is in a superelastic state, it has a very high resilience and can return to its original state under a large strain. According to the scheme, the shape memory alloy material can adopt iron-based shape memory alloy, copper-nickel-based shape memory alloy, copper-aluminum-based shape memory alloy, copper-zinc-based shape memory alloy and the like, through training of the shape memory alloy material, the thickness of the guide plates 6 is in the range of 50-100 ℃, the included angle between the two guide plates 6 is in the range of 50-75 DEG, at the moment, the guide plates 6 are in a separated state, then the air cooling channel 31 and the ventilation groove 21 are opened, when the temperature is reduced, the surface on the inner side of the guide plates 6 is contracted, the outer side is stretched, the guide plates 6 move inwards, the thickness of the guide plates 6 is increased, the included angle is increased, so that when the temperature is in the range of-20-50 ℃, the thickness of the guide plates 6 is increased, the included angle is increased, at the moment, the two guide plates 6 are abutted against each other, the air cooling channel 31 and the ventilation groove 21 are closed, through the shape memory alloy, the control of the air cooling channel 31 and the ventilation groove 21 can be automatically completed under the change of the ambient temperature, the heat dissipation efficiency is improved when the temperature is higher, and the heat dissipation efficiency is reduced when the battery is low, and the heat dissipation effect is reversely increased when the temperature of the battery is increased, and the heat dissipation effect is increased when the temperature of the air cooling channel is increased when the battery is increased, and the heat dissipation effect is reversely is increased when the temperature is 21. The heat dissipation effect of the battery pack can be improved by absorbing heat when the shape memory alloy is converted from the martensite phase to the austenite phase, and the heat release is needed when the shape memory alloy is converted from the austenite phase to the martensite phase, so that the battery pack can be at a proper temperature in a low-temperature environment, and the loss of electric quantity is reduced.
In order to shorten the production cycle of the battery tray, in the embodiment, the mounting frame 1, the partition plate 2 and the heat dissipation layer 3 are integrally cast and formed, in the existing battery tray production, the battery tray which is most commonly used at present is an aluminum tray, and the aluminum tray adopts a cast aluminum and extruded profile welding process. The integrated molding casting process can finish molding and combination of a plurality of parts at one time, compared with an extrusion profile welding process, the production efficiency is higher, the production period can be shortened, the productivity is improved, meanwhile, the integrated molding casting can integrate all the parts together during molding, the dimensional deviation and the shape problem possibly generated in the later welding process are avoided, thereby the product precision is higher, all the parts can be integrated during molding, the joint welding is not needed, the structure is firmer and more reliable, the tightness is better, the required manual operation is less, the production cost can be reduced, and the quality problem caused by improper manual operation is also reduced. The integrated molding casting can form a whole product at one time, and the surface is smooth, so that the production cost is saved, and the aesthetic degree and quality of the product are improved.
For better installing the installing frame 1 on the automobile body, in an embodiment, the lateral wall of installing frame 1 is provided with a plurality of fixed bars 4, a plurality of fixed bars 4 are arranged along the axis symmetry of installing frame 1, installing frame 1 passes through fixed bar 4 and automobile body coupling, when fixed bar 4 is arranged along the axis symmetry of installing frame 1, front end and rear end at installing frame 1 all set up two respectively, both sides at installing frame 1 set up one, just so can guarantee to install on the automobile body through fixed bar 4 can be more firm when installing frame 1, simultaneously, if need to maintain the group battery, only need demolish the connecting piece between fixed bar 4 and the automobile body can, and fixed bar 4 is located the outside of installing frame 1, more convenient maintenance has reduced the difficulty of maintenance, and a plurality of fixed bars 4 are located the outside of installing frame 1, can play certain guard action to installing frame 1 when taking place the side collision, reduce the possibility that installing frame 1 warp if.
In order to better protect the battery pack in the installation frame 1, in an embodiment, the heat dissipation layer 3 comprises a plurality of reinforcing ribs 5, the reinforcing ribs 5 are uniformly arranged on the bottom surface of the installation frame 1 and are in one-to-one correspondence with the partition plates 2, the reinforcing ribs 5 form an air cooling channel 31, the positions of the reinforcing ribs 5 are located below the partition plates 2, the reinforcing ribs 5 are mutually connected and surround the air cooling channel 31, the air cooling channel 31 is a trapezoid channel formed by the mutually connected reinforcing ribs 5, and the channel is divided into three triangular channels by the guide plates, so that external wind can dissipate heat through the channel, meanwhile, the three triangular channels of the channel provide protection for the installation frame 1, so that the reinforcing ribs 5 can provide protection for the installation frame 1 through the self structure, meanwhile, the air cooling channel 31 is formed inside to improve the heat dissipation of the battery pack, in the automobile driving process, the installation frame 1 can be impacted and deformed in an extrusion manner when the automobile is collided, the battery pack is impacted and deformed, and the use of the battery pack is further influenced, and the impact force to the installation frame 1 can be reduced when the reinforcing ribs 3 are damaged, and the impact force to the installation frame 1 can be damaged when the installation frame 1 is damaged. The air cooling channel 31 formed by the reinforcing ribs 5 can play a role in heat dissipation in running of the automobile, so that the heat dissipation effect of the battery pack is effectively improved, the problem of damage of the battery pack caused by excessive heating is avoided, and the quantity of materials used is reduced due to the fact that the air cooling channel 31 is formed by the reinforcing ribs 5, and the purpose of reducing the weight of the automobile is achieved.
In order to better dissipate heat of the battery pack located in the accommodating area 11, in an embodiment, the partition board 2 comprises a base 22 and two side plates 23, the base 22 is located on the inner bottom surface of the mounting frame 1, the two side plates 23 are located on the top surface of the base 22, a ventilation groove 21 is formed between the two side plates 23 and the top surface of the base 22, the partition board 2 is divided into the base 22 and the two side plates 23, the ventilation groove 21 is formed between the base 22 and the two side plates 23, the ventilation groove 21 is communicated with the accommodating area 11 and the air cooling channel 31, cold air in the air cooling channel 31 can be enabled to dissipate heat of the battery pack stacked together in the accommodating area 11 through the ventilation groove 21, heat dissipation efficiency is improved, and the ventilation groove 21 in the partition board 2 can use the quantity of materials to achieve the purpose of reducing the weight of the mounting frame 1, and the battery tray can reduce weight on the basis of improving heat dissipation, so that the purpose of improving the continuous mileage of an automobile is achieved.
In order to reduce the weight of the battery tray, in an embodiment, the base 22 and the mounting frame 1 are both made of an aluminum alloy material, and the aluminum alloy material has the characteristics of light weight and high strength, so that compared with a traditional steel tray, the aluminum alloy tray has lighter weight, can reduce the burden of logistics and transportation, is beneficial to reducing the transportation cost, has higher strength and rigidity, can provide good support and safety guarantee under the conditions of bearing heavy objects and being impacted and vibrated, ensures longer service life of the tray, reduces the maintenance cost, has better corrosion resistance, can reduce oxidation reaction between the battery and the tray, and ensures the quality and performance of the battery.
Also, to further reduce the weight of the battery tray, in one embodiment, the base 22 and the mounting frame 1 may be made of a carbon fiber reinforced composite material, which may further reduce the weight of the tray and enhance the strength and rigidity of the tray as compared to an aluminum alloy material, and the carbon fiber is a high-strength, light-weight material, lighter and stronger than an aluminum alloy, which may provide greater load-bearing capacity and greater safety. The weight of the tray can be reduced by adopting the carbon fiber material, and the transportation cost and the manual carrying cost can be greatly reduced. And the carbon fiber reinforced composite material can inhibit the contact between the battery and other corrosive substances, is favorable for protecting the quality and the service life of the battery, and the tray prepared from the carbon fiber material has the characteristics of easy operation, disassembly and maintenance, and meanwhile, the carbon fiber material has better durability and fatigue resistance and relatively longer service life.
Based on the new energy automobile battery tray, the invention also provides an integrated molding casting method of the new energy automobile battery tray, which comprises the following specific steps:
s1: manufacturing a mold, and manufacturing a casting mold according to design requirements;
s2: preparing materials, namely preparing two materials which need to be integrally formed;
s3: carrying out material treatment, namely smelting, element doping, exhausting and deslagging on an aluminum alloy material and a shape memory alloy material to obtain a stable-quality molten metal;
s4: casting for the first time, and injecting aluminum alloy molten metal into a die on a low-pressure casting machine in a low-pressure mode;
s5: casting for the second time, and injecting the shape memory alloy metal liquid after the surface layer of the aluminum alloy metal liquid is hardened in the die;
s6: and taking down the casting, cooling and solidifying the casting, and then disassembling the die from the casting, and carrying out subsequent cooling and treatment.
The integrated forming of the battery tray of the new energy automobile is divided into two casting of different materials, so that the problems of complicated manufacturing procedures of the battery tray and production cycle shortening are solved, and the parameters such as cooling speed and heat distribution of the materials can be effectively controlled by adopting the casting for multiple times, so that the variation and difference in the manufacturing process are avoided, and the performances and advantages of the different materials can be simultaneously exerted, so that the material with higher quality and efficiency is obtained, and the application range is wider.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.

Claims (8)

1. The utility model provides a new energy automobile battery tray which characterized in that: the battery pack cooling device comprises a mounting frame, a plurality of partition boards fixedly arranged along the inner surface of the mounting frame in a preset mode, wherein the partition boards divide the mounting frame into a plurality of accommodating areas, a battery pack is mounted in each accommodating area, a heat dissipation layer is further arranged on the bottom surface of the mounting frame and comprises an air cooling channel and a cooling liquid flow channel, the cooling liquid flow channel is positioned in the air cooling channel, a ventilation groove is formed in the partition boards, and the ventilation groove is respectively communicated with the accommodating areas and the air cooling channel;
the air cooling channel and the ventilation groove are respectively provided with a guide vane, and the guide vanes open the air cooling channel and the ventilation groove when the preset temperature is higher than the preset temperature and close the air cooling channel and the ventilation groove when the preset temperature is lower than the preset temperature;
the guide vane is made of a shape memory alloy material.
2. The new energy automobile battery tray of claim 1, wherein: the mounting frame, the partition plate and the heat dissipation layer are integrally cast and formed.
3. The new energy automobile battery tray of claim 1, wherein: the outer side wall of the mounting frame is provided with a plurality of fixing strips, the fixing strips are symmetrically arranged along the central axis of the mounting frame, and the mounting frame is connected with a vehicle body through the fixing strips.
4. The new energy automobile battery tray of claim 1, wherein: the heat dissipation layer comprises a plurality of reinforcing ribs, the reinforcing ribs are uniformly arranged on the bottom surface of the mounting frame and are in one-to-one correspondence with the partition plates, and the reinforcing ribs form an air cooling channel.
5. The new energy automobile battery tray of claim 1, wherein: the baffle includes base and both sides board, the base is located the interior bottom surface of installing frame, two the curb plate all is located the top surface of base, two the top surface of curb plate links to each other, two form the ventilation groove between curb plate and the base top surface.
6. The new energy automobile battery tray of claim 5, wherein: the base and the mounting frame are both made of aluminum alloy materials.
7. The new energy automobile battery tray of claim 6, wherein: the base and the mounting frame can also be prepared from carbon fiber reinforced composite materials.
8. A method for integrally molding and casting a new energy automobile battery tray, which is used for the new energy automobile battery tray as claimed in any one of the claims 6 to 7, and is characterized by comprising the following steps:
s1: manufacturing a mold, and manufacturing a casting mold according to design requirements;
s2: preparing materials, namely preparing two materials which need to be integrally formed;
s3: carrying out material treatment, namely smelting, element doping, exhausting and deslagging on an aluminum alloy material and a shape memory alloy material to obtain a stable-quality molten metal;
s4: casting for the first time, and injecting aluminum alloy molten metal into a die on a low-pressure casting machine in a low-pressure mode;
s5: casting for the second time, and injecting the shape memory alloy metal liquid after the surface layer of the aluminum alloy metal liquid is hardened in the die;
s6: and taking down the casting, cooling and solidifying the casting, and then disassembling the die from the casting, and carrying out subsequent cooling and treatment.
CN202310714966.0A 2023-06-16 2023-06-16 New energy automobile battery tray and integrated molding casting method Active CN116632428B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310714966.0A CN116632428B (en) 2023-06-16 2023-06-16 New energy automobile battery tray and integrated molding casting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310714966.0A CN116632428B (en) 2023-06-16 2023-06-16 New energy automobile battery tray and integrated molding casting method

Publications (2)

Publication Number Publication Date
CN116632428A true CN116632428A (en) 2023-08-22
CN116632428B CN116632428B (en) 2023-11-07

Family

ID=87609942

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310714966.0A Active CN116632428B (en) 2023-06-16 2023-06-16 New energy automobile battery tray and integrated molding casting method

Country Status (1)

Country Link
CN (1) CN116632428B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010103691A1 (en) * 2009-03-12 2010-09-16 株式会社吉見製作所 Method of producing member composed of shape memory alloy and actuator utilizing member composed of shape memory alloy
CN206441785U (en) * 2016-12-26 2017-08-25 浙江吉利控股集团有限公司 A kind of battery tray radiator structure
US20180337377A1 (en) * 2017-05-16 2018-11-22 Shape Corp. Vehicle battery tray having tub-based integration
CN109149005A (en) * 2018-08-13 2019-01-04 安徽力高新能源技术有限公司 A kind of new energy car battery cooling device
JP2021051883A (en) * 2019-09-24 2021-04-01 株式会社デンソー Battery unit
CN213184418U (en) * 2020-11-05 2021-05-11 成都工贸职业技术学院 Heat dissipation mechanism for new energy automobile battery management
CN114006078A (en) * 2021-10-25 2022-02-01 湖北亿纬动力有限公司 Air-cooled battery system
CN114361649A (en) * 2022-01-06 2022-04-15 中国电力科学研究院有限公司 Passive self-adaptive battery cooling system based on memory metal

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010103691A1 (en) * 2009-03-12 2010-09-16 株式会社吉見製作所 Method of producing member composed of shape memory alloy and actuator utilizing member composed of shape memory alloy
CN206441785U (en) * 2016-12-26 2017-08-25 浙江吉利控股集团有限公司 A kind of battery tray radiator structure
US20180337377A1 (en) * 2017-05-16 2018-11-22 Shape Corp. Vehicle battery tray having tub-based integration
CN109149005A (en) * 2018-08-13 2019-01-04 安徽力高新能源技术有限公司 A kind of new energy car battery cooling device
JP2021051883A (en) * 2019-09-24 2021-04-01 株式会社デンソー Battery unit
CN213184418U (en) * 2020-11-05 2021-05-11 成都工贸职业技术学院 Heat dissipation mechanism for new energy automobile battery management
CN114006078A (en) * 2021-10-25 2022-02-01 湖北亿纬动力有限公司 Air-cooled battery system
CN114361649A (en) * 2022-01-06 2022-04-15 中国电力科学研究院有限公司 Passive self-adaptive battery cooling system based on memory metal

Also Published As

Publication number Publication date
CN116632428B (en) 2023-11-07

Similar Documents

Publication Publication Date Title
CN105470426A (en) Battery frame tray with water cooling plate and processing method of battery frame tray
CN206148496U (en) Electric automobile aluminum product battery box
CN209691808U (en) Lightweight water-cooled cells lodge body, battery pack and automobile
CN116632428B (en) New energy automobile battery tray and integrated molding casting method
US9865850B2 (en) Supporting element for a housing of a vehicle traction battery
CN115472966A (en) Coupling type battery thermal management system and optimization design method thereof
CN112599904B (en) Anti-collision tray frame beam structure of power battery energy storage system and production method thereof
CN113525272B (en) Storage battery fixing and damping structure of three-point support of commercial vehicle
CN114421074A (en) Lightweight automobile battery tray and short-process manufacturing method thereof
CN109728214B (en) Multi-material light-weight composite-structure battery box and preparation method thereof
CN205376596U (en) Battery frame tray with water -cooling board
CN114669583A (en) Disassembling system applied to power battery and medium temperature control method thereof
CN112803093A (en) Power battery tray and manufacturing method thereof
CN219154572U (en) Vehicle bracket assembly
CN221057528U (en) Stamping type large-size liquid cooling plate
CN215237636U (en) Quick cooling die device of new energy automobile battery box
CN219821365U (en) Radiator grille and vehicle
CN209912931U (en) Novel lower box body of battery pack
CN208655723U (en) A kind of aluminum alloy battery cabinet structure
CN110010806A (en) Lightweight water-cooled cells lodge body and its manufacturing process and application
CN221068220U (en) Frame cross beam and new energy vehicle
CN220155581U (en) Hexagonal prism battery cell, battery module and automobile
CN216881665U (en) Multi-unit combined chassis auxiliary frame low-pressure pouring system
CN214720458U (en) Aluminum alloy motor casing casting water cooling mold
CN221327930U (en) New forms of energy battery package box structure

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