CN109411845A - A kind of pair of charging dynamics battery carries out cooling method - Google Patents
A kind of pair of charging dynamics battery carries out cooling method Download PDFInfo
- Publication number
- CN109411845A CN109411845A CN201710698810.2A CN201710698810A CN109411845A CN 109411845 A CN109411845 A CN 109411845A CN 201710698810 A CN201710698810 A CN 201710698810A CN 109411845 A CN109411845 A CN 109411845A
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- battery
- charging
- charging dynamics
- cooling gas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- 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
- H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
-
- 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
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of pair of charging dynamics batteries to carry out cooling method, comprising: the cooling gas of the refrigerant storage device and charging dynamics Battery case that are stored with dry ice or low temperature liquid carbon dioxide is filled with interface and is attached；The switch for opening refrigerant storage device, so that dry ice or low temperature liquid carbon dioxide become cooling gas under the action of external environment；The cooling gas cools down charging dynamics battery by the cabinet that cooling gas is filled with interface inflow charging dynamics battery.The present invention cools down charging dynamics battery using easy method, effectively reduces vehicle quick charge cost.
Description
Technical field
The present invention relates to a kind of pair of charging dynamics batteries to carry out cooling method, belongs to new energy resource power battery technology neck
Domain.
Background technique
With the continuous application popularization of new-energy automobile, the charging performance of vehicle mounted dynamic battery system is proposed higher
It is required that.In order to realize energy needed for orthodox car supplements vehicle driving in the short time, it is long to need to solve the power battery charging time,
This excessively high technological deficiency of user time cost.
To solve this problem, propose a variety of solutions in industry successively: one is using quick-change mode, and design is fast
The quasi- power battery cabinet of dehorn, and build large-scale electric charging station；This scheme had at home and abroad carried out multiple projects and had attempted, item
The reasons such as the mesh construction period is long, economic cost is high, take up a large area, personnel's maintenance cost is big, poor universality, customers' approval degree are low
Failure.Secondly for power-type power battery is designed as fast charge mode, electrokinetic cell system uses ternary battery, lithium titanate battery
The energy-accumulating medium of constant power better performances is designed, and meets vehicle quick charge demand.The traditional ferric phosphate of this scheme comparison
Lithium dynamical battery scheme has at high cost, this lower obvious disadvantage of the market competitiveness.In addition, analysis running conditions of vehicle can
Know, vehicle power demand in normal driving process is significantly smaller with respect to charge power, and same calorific value was relative to charging
Journey is also significantly smaller, causes electrokinetic cell system performance to utilize insufficient.Thirdly for using lithium iron phosphate dynamic battery in groups simultaneously
Reinforce cooling system function, generally use aluminium alloy box and liquid cooling cooling system is cooperated to realize.This scheme is limited to improve original
The power-performance of lithium iron phosphate dynamic battery, but increased costs, power battery system are caused using aluminium alloy box or liquid cooling scheme
System design is complicated, and failure mode increases, and reliability reduces.
For above situation, it is thus proposed that during power battery charging, using coolant liquid or cooling gas to charging
Battery cools down, and has reached the effect of quickly charging battery.But the equipment due to providing coolant liquid or cooling gas is more
Complexity significantly increases vehicle quick charge cost.
Summary of the invention
The object of the present invention is to provide a kind of pair of charging dynamics batteries to carry out cooling method, for solving to rechargeable battery
The problem of vehicle quick charge higher cost is led to due to coolant supply arrangement complexity when being cooled down.
In order to solve the above technical problems, the present invention provides a kind of pair of charging dynamics batteries to carry out cooling method, step
It is as follows:
The cold of the refrigerant storage device of dry ice or low temperature liquid carbon dioxide and charging dynamics Battery case will be stored with
But gas is filled with interface and is attached；
The switch for opening refrigerant storage device, so that dry ice or low temperature liquid carbon dioxide are under the action of external environment
Become cooling gas；
The cooling gas by cooling gas be filled with interface flow into charging dynamics battery cabinet to charging dynamics battery into
Row cooling.
Further, the cooling gas flow of charging dynamics Battery case is flowed by control flow switching valve control.
It further, further include the temperature of real-time detection rechargeable battery, the charging dynamics battery arrived according to real-time detection
The aperture of temperature control flow switching valve.
The beneficial effects of the present invention are:
During power battery charging, the switch of refrigerant storage device, the dry ice in refrigerant storage device are opened
Or low temperature liquid carbon dioxide by external environment influenced since temperature raises, pressure reduce, rapidly go to cooling gas, should
Cooling gas is filled with interface by the cooling gas of charging dynamics Battery case and enters in charging dynamics Battery case, realizes to filling
The High-temperature cooling of electric power battery.The present invention cools down charging dynamics battery by the way of directly docking, to product knot
Structure requires simply, to effectively reduce vehicle quick charge cost.
Further, by the temperature of real-time detection rechargeable battery, and flow switch is adjusted according to the temperature detected
The aperture of valve, to control the flow for flowing into cooling gas in charging dynamics Battery case, when the temperature of charging dynamics battery is higher
When, control increases the aperture of flow switching valve, so that more cooling gas flow into charging dynamics Battery case, enhancing cooling
Effect；And when the temperature of charging dynamics battery is too low, control reduces the aperture of flow switching valve, so that less cooling gas
It flows into charging dynamics Battery case；It is relatively steady that aperture by controlling flow switching valve can be such that charging dynamics battery maintains
Within the scope of fixed temperature, charging rate is further improved.
Detailed description of the invention
Fig. 1 is the interface diagram of direct current charging connector of the present invention；
Fig. 2 is the interface diagram of AC charging connector of the present invention；
Fig. 3 is the spherical surface-taper pipe joint cooperation schematic diagram being used cooperatively on charge connector of the present invention；
The structural schematic diagram of the electrokinetic cell system of cross gas circuit is constituted when Fig. 4 is DC charging of the present invention；
The structural schematic diagram of the electrokinetic cell system of series connection gas circuit is constituted when Fig. 5 is DC charging of the present invention；
The structural schematic diagram of the electrokinetic cell system of cross gas circuit is constituted when Fig. 6 is AC charging of the present invention；
The structural schematic diagram of the electrokinetic cell system of series connection gas circuit is constituted when Fig. 7 is AC charging of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing and specific implementation
The present invention will be described in further detail for example.
Battery system is made of several Battery cases, and each cabinet contains battery modules and corresponding management system, and passes through phase
Circuit is answered to constitute electrokinetic cell system, for storing electric energy.
Under vehicle accidental conditions, the practical equivalent power of each battery modules is lower in Battery case, and temperature can be tieed up
It holds in the normal temperature range.And under quick charge operating condition of stopping, actual power is apparently higher than the function under running conditions of vehicle
Rate demand, calorific value obviously increase, if will exceed normal range (NR) without effective cooling scheme battery the temperature inside the box, cause to charge
Journey stops.The cooling that charging process is carried out using cryogenic gas or cryogenic liquid, can be substantially reduced battery system running temperature,
Guarantee to complete quick charge.
Low-temperature carbon dioxide is used to cool down to realize quick charge the power battery to charge in order to realize,
Each Battery case in the present invention contains three classes I/O interface, and one is electrokinetic cell system energy input/output interface, is used for
Storage and output electric energy, commonly referred to as active force circuit；Secondly being auxiliary power supply and communication structure, for box house monitoring member
The auxiliary power supply of part is communicated with information, other control elements is cooperated to complete the monitoring to Battery case internal cell mould group and lead to
Letter；Thirdly being gas cooling input/output interface, for the transporting low temperature cooling gas reduction battery system temperature into Battery case
Degree promotes the power-performance of power battery, realizes quick charge.
For each Battery case in the present invention, it is provided at least one intake interface and outlet interface, is used for low temperature
Entrance and the outflow of cooling gas are completed cryogenic gas and are exchanged with the heat of high temperature power battery.Intake interface and outlet interface
Place is designed with solenoid valve, and the on-off for controlling gas circuit controls.Each Battery case is designed as airtight construction, realizes Battery case
Internal cell mould group is isolated with external environment, realizes the water proof and dust proof to internal component.Meanwhile each Battery case can be real
Now to the effective closed of internal Cryogenic air, to improve cooling effect.
Based on above-mentioned Battery case structure, the present invention to charging dynamics battery carry out cooling method specifically include it is following
Step:
(1) the refrigerant storage device and charging dynamics Battery case of dry ice or low temperature liquid carbon dioxide will be stored with
Cooling gas is filled with interface and is attached.
Specifically, the charging plug of vehicle is connected with the charging socket of charging station when needing to charge to vehicle.
Meanwhile the cooling gas of power cell of vehicle cabinet is filled with interface and is stored with the cooling of dry ice or low temperature liquid carbon dioxide
The connecting interface of agent storage device is connected, and connects to realize that the cooling gas of refrigerant storage device and power battery cabinet is filled with
Mouth is connected.
Traditional alternating current and direct current charge connector include energy transmission interface, auxiliary power supply interface, communication connection confirmation connect
The functions such as mouth, ground protection interface, stand-by circuit interface, this programme design increase air-path interface, store for external coolant
Device is to electrokinetic cell system transporting low temperature cooling gas.It is, being realized using the charge connector of a kind of gas, electricity one
Power cell of vehicle and charging equipment be electrically connected and the cooling gas of refrigerant storage device and power cell of vehicle cabinet
It is filled with the gas connection of interface.Wherein, which includes plug and socket two parts, and connector and outside caisson fill
The connection of the equipment such as electric stake；Socket is connect with vehicle electrokinetic cell system, transmits energy to electrokinetic cell system by circuit and gas circuit
Amount, information and cryogenic gas.According to the difference of alternating current-direct current, it is respectively designed with direct current charging connector and is connect with AC charging
Device, interface diagram are as depicted in figs. 1 and 2.
As shown in figure 3, the air-path interface on the charge connector uses spherical surface-cone-shaped seal structure, it can guarantee tracheae
The fast insert-pull of charge connector is realized while sealing joint.Tracheae spherical joint 1 is integrated in charge connector plug 4
On, tracheae conic connector 3 is integrated on the socket 5 of charge connector.When the plug 4 of charge connector is locked with socket 5
Afterwards, tracheae spherical joint 1 is pressed together with tracheae conic connector 3 by compressing pretightning force.It is equipped on tracheae conic connector 3
Sealing rubber ring 2 realizes the sealing of air delivering pipeline by the sealing rubber ring 2 on tracheae conic connector 3.When plug on charge connector
4 with socket 5 when separating, and tracheae spherical joint 1 and tracheae conic connector 3 can realize quick separating.Spherical surface-the cone-shaped seal structure
Air-path interface there is Fast Installation, it is fast that charge connector may be implemented while guaranteeing air-tightness in simple dexterous feature
Speed plug, is effectively simplified the operational sequence of staff.
Above-mentioned charge connector may be implemented the fusion of multiple functions, realize external system to the electric energy of vehicle, information,
The input of cryogenic gas, and have the function of corresponding measurement and protection, Vehicular charging, the time of inflation and correlation can be effectively improved
The operational sequence of personnel.The integrated design scheme can effectively reduce the type and quantity of vehicle and aerial lug, promote
Generalization, hommization.
(2) switch of refrigerant storage device is opened, so that the work of dry ice or low temperature liquid carbon dioxide in external environment
Become cooling gas under.
When using charge connector realize power cell of vehicle and charging equipment be electrically connected and refrigerant storage device
After connecting with the gas that the cooling gas of power cell of vehicle cabinet is filled with interface, the switch of refrigerant storage device is opened in control
Valve, the dry ice in refrigerant storage device or low temperature liquid carbon dioxide are done by the pressure and temperature effect of external environment at this time
Ice can distil as cooling carbon dioxide gas, and liquid carbon dioxide can gasify as cooling carbon dioxide gas.
(3) cooling gas is filled with interface by cooling gas and flows into the cabinet of charging dynamics battery to charging dynamics battery
It is cooled down.
It is filled in battery case by the cooled carbon dioxide gas that step (2) obtain by charge connector, the cryogenic gas
Temperature be 0 DEG C or so, spread, the power battery that is charging carried out cold to each Battery case after air delivering pipeline
But.
For needing the power battery of DC charging, Fig. 4 gives each air delivering pipeline and Battery case constitutes cross gas circuit
When electrokinetic cell system structure chart, Fig. 5 gives each air delivering pipeline and Battery case and constitutes power electric when connecting gas circuit
The structure chart of cell system.In cross gas circuit, from charge connector flow out cooled carbon dioxide and be advanced into each battery case
Then the intake interface of body is flowed out from the outlet interface of the Battery case respectively flowed into.In each Battery case intake interface
In the air delivering pipeline of outlet interface, it is additionally provided with corresponding switch valve.In series connection gas circuit, flowed out from charge connector cold
But carbon dioxide sequentially enters each Battery case, i.e., the cooled carbon dioxide flowed out from the outlet interface of previous Battery case
It is flowed into the intake interface of next Battery case, is finally excluded from the outlet interface of the last one Battery case.Also, it is filling
In air delivering pipeline between electric connector and first Battery case, in the air delivering pipeline between each Battery case and most
Corresponding switch valve is provided in the air delivering pipeline of the outlet interface of the latter Battery case.By controlling above-mentioned air delivering pipeline
In switch valve opening and closing, can control cooled carbon dioxide gas and flow into or from Battery case, it is more preferable to realize
Cooling effect.
For needing the power battery of AC charging, Fig. 6 gives each air delivering pipeline and Battery case constitutes cross gas circuit
When electrokinetic cell system structure chart, Fig. 7 gives each air delivering pipeline and Battery case and constitutes power electric when connecting gas circuit
The structure chart of cell system, due to the connection structure and Fig. 4 and Fig. 5 class in Fig. 6 and Fig. 7 between each air delivering pipeline and Battery case
Seemingly, details are not described herein again.
In addition, in order to control the flow for being filled with the intracorporal cooled carbon dioxide gas of power battery box, it can be in cooling air
One flow switching valve is set in the intake line of body.By the temperature of real-time detection rechargeable battery, arrived according to real-time detection
The aperture of the temperature control flow switching valve of charging dynamics battery.When the temperature of charging dynamics battery is higher, control increases stream
The aperture of switch valve is measured, so that more cooling gas flow into charging dynamics Battery case, enhances cooling effect；And when charging
When the temperature of power battery is too low, control reduces the aperture of flow switching valve, so that less cooling gas flows into charging dynamics
In Battery case.Aperture by controlling flow switching valve can make charging dynamics battery maintain metastable temperature range
It is interior, to realize quick charge.
Further, since Battery case is designed as airtight construction, can be realized with the carbon dioxide gas of closed interior to cabinet
The inerting disposal of internal environment forms a natural flame-proof explosion-proof environment, realizes the flame-proof explosion-proof of battery system, improves system
Security performance.
Claims (3)
1. a kind of pair of charging dynamics battery carries out cooling method, which is characterized in that steps are as follows:
The cooling air of the refrigerant storage device and charging dynamics Battery case of dry ice or low temperature liquid carbon dioxide will be stored with
Body is filled with interface and is attached；
The switch for opening refrigerant storage device, so that dry ice or low temperature liquid carbon dioxide become under the action of external environment
Cooling gas；
The cooling gas carries out charging dynamics battery by the cabinet that cooling gas is filled with interface inflow charging dynamics battery cold
But.
2. according to claim 1 carry out cooling method to charging dynamics battery, which is characterized in that by controlling flow
Switch valve control flows into the cooling gas flow of charging dynamics Battery case.
3. according to claim 2 carry out cooling method to charging dynamics battery, which is characterized in that further include examining in real time
The temperature of the temperature for surveying rechargeable battery, the charging dynamics battery arrived according to real-time detection controls the aperture of flow switching valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710698810.2A CN109411845A (en) | 2017-08-15 | 2017-08-15 | A kind of pair of charging dynamics battery carries out cooling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710698810.2A CN109411845A (en) | 2017-08-15 | 2017-08-15 | A kind of pair of charging dynamics battery carries out cooling method |
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| CN109411845A true CN109411845A (en) | 2019-03-01 |
Family
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| CN201710698810.2A Pending CN109411845A (en) | 2017-08-15 | 2017-08-15 | A kind of pair of charging dynamics battery carries out cooling method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110299577A (en) * | 2019-06-05 | 2019-10-01 | 北京长城华冠汽车技术开发有限公司 | Temperature of powered cell regulating device and adjusting method |
| CN112124139A (en) * | 2020-09-04 | 2020-12-25 | 东风汽车集团有限公司 | Battery replacement and charging control method and device for electric vehicle |
| WO2022042916A1 (en) * | 2020-08-28 | 2022-03-03 | Volkswagen Aktiengesellschaft | Plug assembly, socket assembly, and charging system |
| CN114156561A (en) * | 2021-11-30 | 2022-03-08 | 重庆长安新能源汽车科技有限公司 | Rapid cooling and temperature maintaining system during rapid charging of power battery |
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Application publication date: 20190301 |