CN109489283A - Battery pouring-basket cooling system and battery pack structure - Google Patents
Battery pouring-basket cooling system and battery pack structure Download PDFInfo
- Publication number
- CN109489283A CN109489283A CN201811384943.3A CN201811384943A CN109489283A CN 109489283 A CN109489283 A CN 109489283A CN 201811384943 A CN201811384943 A CN 201811384943A CN 109489283 A CN109489283 A CN 109489283A
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- refrigerant
- battery
- refrigerant pipeline
- pipeline
- liquid
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- 238000001816 cooling Methods 0.000 title claims abstract description 33
- 239000003507 refrigerant Substances 0.000 claims abstract description 177
- 239000007788 liquid Substances 0.000 claims abstract description 75
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 8
- 238000002309 gasification Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000010025 steaming Methods 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000007726 management method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
-
- 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)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
This application provides a kind of battery pouring-basket cooling system and battery pack structures, and the system comprises refrigerant pipeline, electric expansion valve, compressor and condensers；The refrigerant pipeline includes multiple pipe groups, and the multiple pipe group is arranged on battery pack surface, and the refrigerant pipeline includes an input port, a delivery outlet and the pipeline between the input port and delivery outlet；The input port connects the electric expansion valve by interface；The delivery outlet passes through interface connect compressor；The compressor leads to condenser and connect with the electric expansion valve.The refrigerant pipeline, electric expansion valve, compressor and condenser constitute a circulation loop, for circularly cooling agent, the refrigerant is gas-liquid mixture phase when entering refrigerant pipeline and exporting from refrigerant pipeline under the action of electric expansion valve, keep the temperature of entire refrigerant pipeline consistent, there is no the temperature difference, so that entire battery pack is at the same temperature, prevent battery pack from reducing service life due to excessive temperature differentials.
Description
Technical field
This application involves power battery fields, in particular to battery pouring-basket cooling system and battery pack structure.
Background technique
In recent years, due to energy cost and environmental pollution the problem of, is more and more prominent, and pure electric automobile and mixing are dynamic
The advantages of power automobile can substantially eliminate even zero-emission vehicle tail gas with it, the attention by government and each Automobile Enterprises.
However pure electric vehicle and hybrid vehicle still have many technical problems to need to break through, battery and capacity attenuation are them
In a major issue.
The service life and capacity attenuation of battery and the temperature difference of battery system and temperature elevation amplitude have closely
Relationship.Power battery can generate a large amount of heat at work, if the heat can not be discharged in time, will make in power battery
Temperature constantly rise, the temperature difference for causing it internal is gradually increased, and final power battery will be in the building ring of the big temperature difference
In border, the service life of power battery is influenced.Especially in the hot summer, the temperature of natural environment is very high, if cannot and
When power battery is effectively cooled down, final operating temperature will be much larger than power battery reasonable working temperature, into
And the service life and battery capacity of power battery are seriously affected, while also causing to the discharge performance of power battery biggish dry
It disturbs.
Summary of the invention
To solve the above-mentioned problems, the embodiment of the present application provides a kind of battery pouring-basket cooling system and battery pack structure.
In a first aspect, the embodiment of the present application provides a kind of battery pouring-basket cooling system, the system comprises refrigerant pipelines, electronics
Expansion valve, compressor and condenser；
The refrigerant pipeline includes multiple pipe groups, and on battery pack surface, the refrigerant pipeline includes one for the pipe group setting
A input port, a delivery outlet and the pipeline between the input port and delivery outlet；
The input port connects the electric expansion valve by interface；The delivery outlet passes through interface connect compressor；Institute
The logical condenser of compressor is stated to connect with the electric expansion valve；
The refrigerant being set in the refrigerant pipeline is partially vaporized after passing through the refrigerant pipeline as gaseous refrigerant,
Enter compressor after mixing with the liquid refrigerant not being evaporated, the compressor carries out heating to gaseous refrigerant therein and adds
Pressure；
The refrigerant of the gas-liquid mixture phase exported from the compressor is liquefied after through the condenser as liquid system
Cryogen, the liquid refrigerant flow through partial gasification after the electric expansion valve, become gas-liquid mixture phase；
The refrigerant pipeline is evaporated some liquid refrigerant of the refrigerant of gas-liquid mixture phase, so that the system
Cryogen is gas-liquid mixture phase after the output of the delivery outlet of refrigerant pipeline, to complete the circulation of refrigerant.
Optionally, in the present embodiment, the system also includes counterbalance valve,
The delivery outlet is connect by interface with the counterbalance valve, and the counterbalance valve is connect with the compressor, the back
Pressure valve is used to control the pressure value of the refrigerant pipeline, so that the refrigerant pipeline is in high pressure conditions, to improve the refrigerant
Evaporating temperature, reduce the generation of condensed water.
Optionally, in the present embodiment, the system also includes gas-liquid separators:
The input port of the gas-liquid separator is connect with the counterbalance valve, the gas-liquid divide the delivery outlet of device respectively with it is described
The input port of compressor and refrigerant pipeline connection, wherein the gas-liquid separator is used for the refrigeration of gas-liquid mixture phase
Agent carries out gas-liquid separation, and gaseous refrigerant is delivered to compressor and carries out temperature-pressure operation, and liquid refrigerant is fed directly to institute
It states at the input port of refrigerant pipeline.
Optionally, in the present embodiment, the system also includes electronic pumps: the electronic pump is arranged in the gas-liquid separation
Between device and the refrigerant pipeline, for the liquid refrigerant after gas-liquid separation to be pumped into the inlet of the refrigerant pipeline.
Optionally, in the present embodiment, the refriger-ant section gas in electric expansion valve described in the electronic expansion valve controls
Change, so that the refrigerant will not be vaporized completely in refrigerant pipeline.
Optionally, in the present embodiment, the making material of the refrigerant pipeline is heat-conducting metal.
Optionally, in the present embodiment, the heat-conducting metal is copper.
Optionally, in the present embodiment, the heat-conducting metal is aluminium.
The third aspect, the embodiment of the present application also provide a kind of battery pack structure, and the battery pack structure includes multiple battery cores
Composition battery pack, the battery pack is arranged side by side in the battery pouring-basket cooling system mentioned with above-mentioned first aspect, the multiple battery core
Cooling system is used to carry out heat management to battery pack.
Optionally, in the present embodiment, the refrigerant pipeline is arranged in below the battery core of the battery pack, and connects with battery core
Touching.
Compared with the existing technology, the embodiment of the present application has the advantages that
This application provides a kind of battery pouring-basket cooling system and battery pack structures, and the system comprises refrigerant pipelines, electronics
Expansion valve, compressor and condenser；The refrigerant pipeline includes multiple pipe groups, and the multiple pipe group is arranged on battery pack surface,
The refrigerant pipeline includes an input port, a delivery outlet and the pipeline between the input port and delivery outlet；It is described
Input port connects the electric expansion valve by interface；The delivery outlet passes through interface connect compressor；The compressor leads to cold
Condenser is connect with the electric expansion valve.The refrigerant pipeline, electric expansion valve, compressor and condenser constitute one and are recycled back to
Road, be used for circularly cooling agent, the refrigerant under the action of electric expansion valve enter refrigerant pipeline and from refrigerant pipeline it is defeated
It is gas-liquid mixture phase when out, keeps the temperature of entire refrigerant pipeline consistent, without the temperature difference, so that entire battery pack is in same
At a temperature, prevent battery pack from reducing service life due to excessive temperature differentials.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is one of the system block diagram of battery pouring-basket cooling system provided by the embodiments of the present application；
Fig. 2 is the structural schematic diagram of the refrigerant pipeline；
Fig. 3 is the two of the system block diagram of battery pouring-basket cooling system provided by the embodiments of the present application；
Fig. 4 is the three of the system block diagram of battery pouring-basket cooling system provided by the embodiments of the present application.
Icon: 1- battery pouring-basket cooling system；10- refrigerant pipeline；20- electric expansion valve；30- compressor；40- condenser；
50- counterbalance valve；60- gas-liquid separator；70- electronic pump；101- pipe group；The input port 102-；103- delivery outlet；104- pipeline.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Ground description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Usually exist
The component of the embodiment of the present application described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed the application's to the detailed description of the embodiments herein provided in the accompanying drawings below
Range, but it is merely representative of the selected embodiment of the application.Based on embodiments herein, those skilled in the art are not being done
Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, it should be noted that term " first ", " second " " third " etc. are only used for distinguishing and retouch
It states, is not understood to indicate or imply relative importance.
The orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right", "inner", "outside" is based on shown in attached drawing
Orientation or positional relationship or this application product using when the orientation or positional relationship usually put, be merely for convenience of
It describes the application and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore should not be understood as the limitation to the application.
In addition, the terms such as " vertical " are not offered as requiring absolute upright between component, but can be slightly tilted.As " hung down
Directly " only refer to that its direction is in contrast more vertical, be not indicate the structure have to it is completely vertical, but can be slightly
Inclination.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " etc. shall be understood in a broad sense.For example, it may be being fixedly connected, may be a detachable connection, or
It is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition
The concrete meaning of above-mentioned term in this application.
It is most of in the prior art that heat management is carried out to battery pack using liquid cooling system in the system of power battery, and
In this application, battery pack is cooled down using refrigerant, cooling efficiency is significantly larger than liquid cooling system.If desired quickly to dynamic
When power battery is charged, heat also can be generated quickly accordingly, and directly carrying out cooling to battery pack using refrigerant can be fast
Speed belt walks the heat of battery pack, meets the fast charge demand of power battery.
Fig. 1 is please referred to, Fig. 1 is one of the system block diagram of battery pouring-basket cooling system provided by the embodiments of the present application, the system
System 1 includes refrigerant pipeline 10, electric expansion valve 20, compressor 30 and condenser 40.
Referring to figure 2., Fig. 2 is the structural schematic diagram of the refrigerant pipeline 10, and the refrigerant pipeline 10 includes multiple pipe groups
101, on battery pack surface, the refrigerant pipeline 10 includes a delivery outlet 103 of input port 102, one for the setting of pipe group 101
And the pipeline 104 between the input port and delivery outlet.In the cyclic process of entire refrigerant, the refrigerant is from defeated
After entrance 102 enters refrigerant pipeline 10, entire refrigerant is flowed through by the pipeline 104 between input port 102 and delivery outlet 103
Pipeline 10, and gaseous refrigerant is evaporated to by refrigerant pipeline 10, and deliver refrigerant to compressor 30.
Please continue to refer to Fig. 1 and Fig. 2, the input port 102 connects the electric expansion valve 20 by interface；The output
Mouth 103 passes through interface connect compressor 30；The compressor 30 leads to condenser 40 and connect with the electric expansion valve 20.
The refrigerant being set in the refrigerant pipeline 10 is by being partially vaporized after the refrigerant pipeline 10 as gaseous state system
Cryogen enters compressor 30 after mixing with the liquid refrigerant not being evaporated, the compressor 30 is to gaseous refrigerant therein
Temperature-pressure is carried out, the refrigerant of gas-liquid mixture phase is obtained.
The refrigerant of the gas-liquid mixture phase exported from the compressor is liquefied after through the condenser 40 as liquid
Refrigerant, the liquid refrigerant partial gasification, refrigerant after the electric expansion valve 20 become gas-liquid mixed shape again
State.
The refrigerant pipeline 10 is evaporated some liquid refrigerant of the refrigerant of gas-liquid mixture phase, so that described
Refrigerant is gas-liquid mixture phase after the output of the delivery outlet 103 of refrigerant pipeline 10, to complete the circulation of refrigerant.
Shi Douwei gas-liquid mixture phase is exported in input refrigerant pipeline 10 and from refrigerant pipeline 10 due to refrigerant, so that whole
The temperature difference of a refrigerant pipeline 10 is little, and the temperature difference so as to cause the battery pack contacted with refrigerant pipeline 10 is also relatively small,
It is able to ascend the service life of battery pack.Wherein, the gaseous refrigerant is higher than defeated in the content accounting of output refrigerant pipeline 10
The content accounting of gaseous refrigerant when entering refrigerant pipeline 10.
Referring to figure 3., Fig. 3 is the two of the system block diagram of battery pouring-basket cooling system provided by the embodiments of the present application, in this reality
It applies in example, the system 1 further includes counterbalance valve 50, wherein the delivery outlet is connect by interface with the counterbalance valve 50, described
Counterbalance valve 50 is connect with the compressor 30, and the counterbalance valve 50 is used to control the pressure value of the refrigerant pipeline 10, is made described
Refrigerant pipeline 10 is in high pressure conditions, to improve the evaporating temperature of the refrigerant, reduces the generation of condensed water.
In the present embodiment, the evaporating temperature of refrigerant depends on the atmospheric pressure value in refrigerant pipeline 10, the bigger refrigeration of air pressure
The evaporating temperature of agent is higher.The counterbalance valve 50 is arranged between the refrigerant pipeline 10 and compressor 30, and counterbalance valve 50 controls
The evaporating temperature of refrigerant can be promoted 20 degrees Celsius of left sides under the action of counterbalance valve 50 by the atmospheric pressure value in refrigerant pipeline 10
The right side, to reduce the generation of condensed water.
Referring to figure 4., Fig. 4 is the three of the system block diagram of battery pouring-basket cooling system provided by the embodiments of the present application, in this reality
It applies in example, the system 1 further include: gas-liquid separator 60.
The input port of the gas-liquid separator 60 is connect with the counterbalance valve 50, the delivery outlet difference of the gas-liquid separator
It is connect with the input port 102 of the compressor 30 and the refrigerant pipeline 10.Wherein, the gas-liquid separator 60 is for will be from back
The refrigerant for the gas-liquid mixture phase that pressure valve 50 exports carries out gas-liquid separation, and gaseous refrigerant is delivered to compressor 30 and is added
Liquid refrigerant is fed directly at the input port of the refrigerant pipeline 10 by warm pressurized operation.
In the present embodiment, in order to which the refrigerant for making the refrigerant pipeline 10 input and export is gas-liquid mixture phase,
Therefore it is required that the liquid refrigerant into refrigerant pipeline 10 is more, it is unlikely to be evaporated completely, therefore by gaseous refrigerant
And liquid refrigerant separation, liquid refrigerant is fed directly at the input port 102 of refrigerant pipeline 10, and gaseous refrigerant is defeated
It send to compressor 30 and carries out temperature-pressure operation.
Please continue to refer to Fig. 4, in the present embodiment, the system 1 further includes electronic pump 70: the setting of electronic pump 70 exists
It is described cold for the liquid refrigerant after gas-liquid separation to be pumped between the gas-liquid separator 60 and the refrigerant pipeline 10
At the input port of matchmaker's pipeline 10.
The electronic pump 70 is connect with gas-liquid separator 60, and the liquid refrigerant after gas-liquid separator 60 is acted on is delivered to
The input port 102 of the refrigerant pipeline 10.
In the present embodiment, the electric expansion valve 20 can control the gasification journey for flowing into the refrigerant of electric expansion valve 20
Degree, to guarantee to have the liquid refrigerant of sufficient amount to flow into refrigerant pipeline 10.The electric expansion valve 20 gasify after refrigerant with
The input port 102 of refrigerant pipeline 10 is co-flowed into after not vaporized refrigerant mixing.Due to flowing into the gas-liquid of refrigerant pipeline 10
More liquid refrigerant is mixed in the refrigerant of admixture, so that the refrigerant pipeline 10 can not be complete by liquid refrigerant
Evaporation, therefore, when exporting the refrigerant pipeline 10, the refrigerant also maintains gas-liquid mixture phase, solves due to cold
The larger problem of the temperature difference caused by 10 volume of matchmaker's pipeline is excessive, so that the temperature of entire refrigerant pipeline 10 is consistent, therefore, with
The temperature for the battery pack that refrigerant pipeline 10 contacts also is consistent, and is greatly improved the service life of battery pack.
In the present embodiment, the making material of the refrigerant pipeline 10 is heat-conducting metal.The battery pouring-basket cooling system benefit
With the principle of refrigerant evaporation latent heat, i.e., refrigerant be converted by liquid it is gaseous during can absorb heat, therefore, to
Heat management is carried out to battery pack, then needs the heat between battery pack and refrigerant pipeline 10 that can smoothly transmit, so refrigerant pipe
The making material on road 10 is heat-conducting metal, and what the heat-conducting metal can either carry out heat transfer, while have metal itself supports
The ability of resistance to deformation and fracture.
In an embodiment of the present embodiment, the heat-conducting metal is copper.
In the another embodiment of the present embodiment, the heat-conducting metal is aluminium.
It is worth noting that copper and aluminium mentioned above is only two kinds of embodiments in the present embodiment, in the present embodiment
Other embodiments in, the heat-conducting metal can also be the metal with heating conduction, at this to the type of heat-conducting metal
It is not construed as limiting.
The embodiment of the present application also provides a kind of battery pack structure, the battery pack structure includes multiple battery cores and battery pack
Composition battery pack is arranged side by side in cooling system 1, the multiple battery core, and the battery pouring-basket cooling system is used to carry out heat to battery pack
Management, prevents battery pack in use due to the excessively high influence to service life of heat, while can also promote new energy vapour
The service performance of vehicle.
In the present embodiment, the refrigerant pipeline 10 is arranged in below the battery core of the battery pack, and contacts with battery core.Institute
State battery core and contacted with refrigerant pipeline 10 and be able to carry out heat transfer, enable refrigerant evaporation in the refrigerant pipeline 10 when
The heat generated in battery pack use process is absorbed, heat management is carried out to battery pack, promotes the service life of battery pack.
In conclusion the system comprises refrigerants this application provides a kind of battery pouring-basket cooling system and battery pack structure
Pipeline, electric expansion valve, compressor and condenser；The refrigerant pipeline includes multiple pipe groups, and the multiple pipe group is arranged in electricity
The surface Chi Bao, the refrigerant pipeline include an input port, a delivery outlet and between the input port and delivery outlet
Pipeline；The input port connects the electric expansion valve by interface；The delivery outlet passes through interface connect compressor；The pressure
Contracting machine leads to condenser and connect with the electric expansion valve.The refrigerant pipeline, electric expansion valve, compressor and condenser constitute one
A circulation loop, is used for circularly cooling agent, and the refrigerant is entering refrigerant pipeline and from cold under the action of electric expansion valve
Matchmaker's pipeline is gas-liquid mixture phase when exporting, and keeps the temperature of entire refrigerant pipeline consistent, the temperature difference is smaller, so that entire battery pack
It at the same temperature, prevents battery pack due to excessive temperature differentials and reduces service life, simultaneously because counterbalance valve improves system
The evaporating temperature of cryogen reduces the generation of condensed water, can also promote the service life of battery pack.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of battery pouring-basket cooling system, which is characterized in that the system comprises refrigerant pipeline, electric expansion valve, compressor and
Condenser；
The refrigerant pipeline includes multiple pipe groups, and on battery pack surface, the refrigerant pipeline includes one defeated for the pipe group setting
Entrance, a delivery outlet and the pipeline between the input port and delivery outlet；
The input port connects the electric expansion valve by interface；
The delivery outlet passes through interface connect compressor；
The compressor leads to condenser and connect with the electric expansion valve；
The refrigerant being set in the refrigerant pipeline, which passes through, not to be partially vaporized after the refrigerant pipeline as gaseous refrigerant, and not
Enter compressor after the liquid refrigerant mixing being evaporated, the compressor carries out temperature-pressure to gaseous refrigerant therein；
The liquefaction after through the condenser of the refrigerant of the gas-liquid mixture phase exported from the compressor is liquid refrigerant,
Liquid refrigerant partial gasification after the electric expansion valve, becomes gas-liquid mixture phase；
The refrigerant pipeline is evaporated some liquid refrigerant of the refrigerant of gas-liquid mixture phase, so that the refrigerant
It is gas-liquid mixture phase after the output of the delivery outlet of refrigerant pipeline, to complete the circulation of refrigerant.
2. battery pouring-basket cooling system according to claim 1, which is characterized in that the system also includes counterbalance valve,
The delivery outlet is connect by interface with the counterbalance valve, and the counterbalance valve is connect with the compressor, the counterbalance valve
For controlling the pressure value of the refrigerant pipeline, the refrigerant pipeline is set to be in high pressure conditions, to improve the steaming of the refrigerant
Temperature is sent out, the generation of condensed water is reduced.
3. battery pouring-basket cooling system according to claim 2, which is characterized in that the system also includes gas-liquid separators:
The input port of the gas-liquid separator is connect with the counterbalance valve, the gas-liquid divide the delivery outlet of device respectively with the compression
The input port of machine and the refrigerant pipeline connection, wherein the gas-liquid separator be used for by the refrigerant of gas-liquid mixture phase into
Row gas-liquid separation, gaseous refrigerant are delivered to compressor and carry out temperature-pressure operation, and liquid refrigerant is fed directly to described cold
At the input port of matchmaker's pipeline.
4. battery pouring-basket cooling system according to claim 3, which is characterized in that the system also includes electronic pumps: described
Electronic pump is arranged between the gas-liquid separator and the refrigerant pipeline, for taking out the liquid refrigerant after gas-liquid separation
Enter the inlet of the refrigerant pipeline.
5. battery pouring-basket cooling system according to claim 4, which is characterized in that electronics described in the electronic expansion valve controls
Refriger-ant section gasification in expansion valve, so that the refrigerant will not be vaporized completely in refrigerant pipeline.
6. battery pouring-basket cooling system according to claim 5, which is characterized in that the making material of the refrigerant pipeline is to lead
Thermometal.
7. battery pouring-basket cooling system according to claim 6, which is characterized in that the heat-conducting metal is copper.
8. battery pouring-basket cooling system according to claim 6, which is characterized in that the heat-conducting metal is aluminium.
9. a kind of battery pack structure, which is characterized in that cold including battery pack described in multiple battery cores and claim 1-8 any one
But composition battery pack is arranged side by side in system, the multiple battery core, and the battery pouring-basket cooling system is used to carry out heat pipe to battery pack
Reason.
10. battery pack structure according to claim 9, which is characterized in that the refrigerant pipeline is arranged in the battery pack
Battery core below, and contacted with battery core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384943.3A CN109489283B (en) | 2018-11-20 | 2018-11-20 | Battery pack cooling system and battery pack structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811384943.3A CN109489283B (en) | 2018-11-20 | 2018-11-20 | Battery pack cooling system and battery pack structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109489283A true CN109489283A (en) | 2019-03-19 |
| CN109489283B CN109489283B (en) | 2021-07-06 |
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ID=65696408
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811384943.3A Active CN109489283B (en) | 2018-11-20 | 2018-11-20 | Battery pack cooling system and battery pack structure |
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| CN109489283B (en) | 2021-07-06 |
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Denomination of invention: Battery pack cooling system and battery pack structure Effective date of registration: 20220325 Granted publication date: 20210706 Pledgee: Merchants Bank Hefei branch Xiyou Rd. Pledgor: Huating (Hefei) Power Technology Co.,Ltd. Registration number: Y2022980003122 |
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