CN109802195A - Battery system and temperature control method thereof - Google Patents
Battery system and temperature control method thereof Download PDFInfo
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- CN109802195A CN109802195A CN201910083884.4A CN201910083884A CN109802195A CN 109802195 A CN109802195 A CN 109802195A CN 201910083884 A CN201910083884 A CN 201910083884A CN 109802195 A CN109802195 A CN 109802195A
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- heat exchange
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- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 269
- 239000007788 liquid Substances 0.000 claims abstract description 98
- 238000001816 cooling Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000010992 reflux Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 238000009413 insulation Methods 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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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Abstract
The invention provides a battery system which comprises a plurality of battery cores, a heat exchange device, a water tank assembly and a temperature control system. The heat exchange device comprises a plurality of heat exchange plates, the heat exchange plates are used for exchanging heat for the battery core, a closed heat conduction pipeline is arranged on each heat exchange plate, heat transfer working media are filled in the heat conduction pipeline, and a liquid heat exchange channel is arranged on each heat exchange plate. The water tank assembly is communicated with the liquid heat exchange channel through a liquid inlet pipe and is used for supplying hot water or cold water to the liquid heat exchange channel. The temperature control system is connected with the battery cell and the water tank assembly, is used for monitoring and acquiring the temperature of the battery cell in real time, and calculates and adjusts the water temperature and the flow of the liquid heat exchange channel according to the temperature of the battery cell so as to exchange heat for the battery cell. The invention also provides a temperature control method of the battery system, which is applied to the battery system. The invention can maintain the battery cell in the battery system in the optimal working temperature range, thereby keeping the battery cell in a good working state.
Description
Technical field
The present invention relates to battery technology field, in particular to a kind of battery system and its temprature control method.
Background technique
In battery system, battery core has an optimal operating temperature range at work, exceeds the temperature range, electricity
The working condition of core can be deteriorated, or even there are security risks.But environment temperature is too high or too low or battery core itself is in charge and discharge
It generates heat in electric process, all may result in the operating temperature range of the actual temperature off-target of battery core.
Summary of the invention
The main object of the present invention is to propose a kind of battery system and its temprature control method, it is intended to solve above-mentioned technology and ask
Topic.
To achieve the above object, battery system proposed by the present invention, comprising:
Multiple battery cores；
Heat-exchanger rig, the heat-exchanger rig include multiple heat exchanger plates, and the heat exchanger plates are described to exchange heat to the battery core
There is closed thermal conductivity pipeline on heat exchanger plates, be filled with heat-transfer working medium in the thermal conductivity pipeline, and be provided on the heat exchanger plates
Liquid heat exchange channel；
Cistern assembly, the cistern assembly are connected to by inlet tube with the liquid heat exchange channel, and the cistern assembly is used
To provide hot water or cold water for the liquid heat exchange channel；
Temperature control system connects the battery core and the cistern assembly, and the temperature control system is to monitor and obtain institute in real time
The temperature of battery core is stated, and adjusts the water temperature in the liquid heat exchange channel according to the temperature of the battery core, to exchange heat to the battery core.
Optionally, in being intervally arranged, multiple battery cores arrange to form multiple battery core rows multiple heat exchanger plates, adjacent
At least the row of battery core described in sandwiched one, the liquid heat exchange channel penetrate through the both ends of the heat exchanger plates between two heat exchanger plates,
The liquid heat exchange channel is parallel with the thermal conductivity pipeline.
Optionally, the heat exchanger plates are U-shaped heat exchanger plates, and the heat-exchanger rig is by multiple connected U-shaped heat exchanger plates one
It is body formed, alternatively,
The heat-exchanger rig is integrally formed by multiple end to end heat exchanger plates, multiple battery cores arrange to be formed it is more
A battery core group, the battery core group are located between the heat exchanger plates of adjacent two.
Optionally, the battery system further includes electronic water pump, and the electronic water pump is set on the inlet tube, the temperature
Control system is electrically connected with the electronic water pump, and the temperature control system controls the flow of the inlet tube by the electronic water pump.
Optionally, the battery system further includes heater and water chiller, and the cistern assembly includes boiler and cold
Water tank, the heater are connect with the boiler, and the water chiller is connect with the cold water storage cistern, and the heater is to right
Water in the boiler is heated, and the water chiller is to cool down to the water in the cold water storage cistern.
The present invention also proposes a kind of temprature control method of battery system, applied to the battery system, including it is following
Step:
S1: the actual temperature T of battery core is obtained1；
S2: judge temperature T1Whether the optimal operating temperature range T of battery core is in0, wherein T0∈[Ta,Tb], if so,
Return to step S1；
If it is not, then continuing to execute step S3；
S3: judge temperature T1Whether the optimal operating temperature range T of battery core is exceeded0；
S4: by the lower water temperature of inlet tube to T2, T0、T1And T2Meet following relationship between three:
Wherein, as temperature T1Less than TaWhen, T2>T0>T1, the water in heating devices heat cistern assembly is controlled to temperature T2,
And cistern assembly unlatching is controlled, to be T to the inlet tube delivery temperature2Water flow；
As temperature T1Greater than TbWhen, T2<T0<T1, the water in cooling device cooling water tank component is controlled to temperature T2, and control
Cistern assembly is opened, to be T to the inlet tube delivery temperature2Water flow；
S5: the water flow for controlling the inlet tube is delivered to the liquid heat exchange channel.
Optionally, further comprising the steps of after the step S4 and before the step S5:
S41: when the water temperature of the inlet tube is T2When flow with electronic water pump on the inlet tube is maximum value, calculate
Battery core is restored to optimum working temperature range T0Required time t1；
S42: judge t1Whether preset time t is greater than0, if so, improving T2With T0Between temperature difference T.
Optionally, further comprising the steps of after the step S4 and before the step S5:
By T1With TmIt is compared, and by T1With TnIt is compared,
Work as Tn<T1<TmWhen, the flow for being set to electronic water pump on the inlet tube is adjusted to Q0；
As temperature T1≥TmWhen, the flow for being set to electronic water pump on the inlet tube is adjusted to Q1；
As temperature T1≤TnWhen, the flow for being set to electronic water pump on the inlet tube is adjusted to Q2,
Wherein, Tm=T0+ 5 DEG C, Tn=T0- 5 DEG C, Q1>Q0>=0, Q2>Q0≥0。
Optionally, the cistern assembly further includes boiler and cold water storage cistern, and the step S4 is further comprising the steps of:
Obtain the water temperature T of boilerhWith the water temperature T of cold water storage cisternc；
As temperature ThLess than T2When, control heater carries out being heated to T to the water of boilerh=T2Afterwards, control boiler is opened
Inlet tube delivery temperature described in Qi Bingxiang is T2Water flow；
As temperature TcGreater than T2When, control water chiller carries out being cooled to T to the water of cold water storage cisternc=T2Afterwards, cold water storage cistern is controlled
Open and to the inlet tube delivery temperature be T2Water flow.
Optionally, further include step S6 after the step S5:
Obtain the leaving water temperature T in liquid heat exchange channel3；
Judge leaving water temperature T3Whether (T is greater thanh+Tc)/2；
As temperature T3Greater than (Th+TcThe water outlet of)/2, control liquid heat exchange channel enters boiler；
As temperature T3Less than (Th+TcThe water outlet of)/2, control liquid heat exchange channel enters cold water storage cistern；
As temperature T3Equal to (Th+TcThe water outlet of)/2, control liquid heat exchange channel enters in cold water storage cistern and boiler at least
One.
The present invention is monitored and is obtained in real time the actual temperature of battery core by temperature control system, and according to the temperature computation tune of battery core
The water temperature of water-saving box assembly, cistern assembly is opened in control, and the flowing water of preference temperature is made to flow through liquid heat exchange channel and heat pipe
Road exchanges heat, and is then exchanged heat again by thermal conductivity pipeline to battery core, and battery core is heated or cooled down to realize.This hair
It is bright that the battery core in battery system can be made to maintain optimal operating temperature range, so that battery core be made to keep good work shape
State.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of battery system of the present invention；
Fig. 2 is the combination diagram of battery core and heat-exchanger rig in battery system shown in Fig. 1；
Fig. 3 is the combination diagram of battery core and heat-exchanger rig in another embodiment of battery system of the present invention；
Fig. 4 is the structural schematic diagram of heat-exchanger rig shown in Fig. 3；
Fig. 5 is the combination diagram of battery core and heat-exchanger rig in battery system another embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another embodiment of battery system of the present invention；
Fig. 7 is another structural schematic diagram of battery system shown in Fig. 6；
Fig. 8 is the flow diagram of one embodiment of temprature control method of battery system of the present invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1 | Battery system | 11 | Battery core |
| 10 | Heat-exchanger rig | 12 | Heat exchanger plates |
| 122 | Liquid heat exchange channel | 14 | Flexible insulation thermally conductive sheet |
| 20 | Cistern assembly | 21 | Boiler |
| 22 | Cold water storage cistern | 30 | Temperature control system |
| 31 | Control assembly case | 32 | Water tank controls unit |
| 40 | Electronic water pump | 50 | Inlet tube |
| 51 | Outlet valve | 60 | Return pipe |
| 61 | Inlet valve |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It should be noted that be referred to as " being fixed on " another component when component, it can directly on another component or
There may also be components placed in the middle.When a component is considered as " connection " another component, it can be directly to separately
One component may be simultaneously present component placed in the middle.When a component is considered as " being set to " another component, it be can be
It is set up directly on another component or may be simultaneously present component placed in the middle.Term as used herein " vertically ", " level
", "left", "right" and similar statement for illustrative purposes only.
Separately it is to be appreciated that if relating to the description of " first ", " second " etc. in the embodiment of the present invention, " first ", " the
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not the present invention claims protection scope within.
The embodiment of the present invention proposes a kind of battery system 1.
It please refers to shown in Fig. 1 and Fig. 2, Fig. 1 is the structural schematic diagram of one embodiment of battery system of the present invention；Fig. 2 is Fig. 1 institute
Show the combination diagram of battery core and heat-exchanger rig in battery system.
In embodiments of the present invention, which includes multiple battery cores 11, heat-exchanger rig 10, cistern assembly 20 and temperature
Control system 30.
Wherein, heat-exchanger rig 10 includes multiple heat exchanger plates 12, and heat exchanger plates 12 to battery core 11 to exchange heat.Have on heat exchanger plates 12
Have closed thermal conductivity pipeline (attached not shown), heat-transfer working medium is filled in thermal conductivity pipeline, and be provided with liquid on heat exchanger plates 12 and change
The passage of heat 122；
Cistern assembly 20 is connected to by inlet tube 50 with liquid heat exchange channel 122, and cistern assembly 20 is to for liquid heat exchange
Channel 122 provides hot water or cold water.It is appreciated that cistern assembly 20 needs for liquid when battery core 11 is lower than optimum temperature range
Body heat exchanger channels 122 provide hot water, to heat to battery core；When battery core 11 is higher than optimum temperature range, cistern assembly 20
It needs to provide cold water for liquid heat exchange channel 122, to cool down battery core.
Temperature control system 30 connects battery core 11 and cistern assembly 20.Temperature control system 30 is to monitor and obtain battery core 11 in real time
Temperature, and the water temperature of the temperature regulating tank component 20 according to battery core 11, so that preference temperature water flow is conveyed by inlet tube 50
To changing liquid channel 122, and then exchange heat to battery core 11.
It should be noted that liquid feed device of the cistern assembly 20 as liquid heat exchange channel 122, other than loading water,
Other heat-transfer fluids can also be loaded.In addition, the heat-transfer working medium filled in thermal conductivity pipeline can be gas or liquid or gas
With the mixture of liquid, such as water, oil and refrigerant etc..Heat exchanger plates 12 filled with heat-transfer working medium have heat absorption, rate of heat transfer fast
The good feature with uniform temperature can quickly absorb the heat generated in 11 charge and discharge process of battery core and transfer heat to liquid and change
Cold water in the passage of heat 122, or quickly absorb the heat of hot water in liquid heat exchanger channels 122 and transfer heat to battery core
11.In addition, the heat-transfer working medium filled in heat exchanger plates 12, which can share heat equally, to come, to make battery core 11 in diabatic process
Thermally equivalent or heat dissipation.
It is understood that the battery core in battery system has optimal operating temperature range, the environment of severe cold can make electricity
The temperature of core is too low, and the fever in the environment of heat and battery core itself charge and discharge process all can make the temperature of battery core excessively high.
In the technical solution of the present invention, temperature control system can obtain the actual temperature of battery core.Specifically, temperature control system can pass through temperature
The temperature of the devices such as sensor and infrared radiation thermometer acquisition battery core.After temperature control system obtains the actual temperature of battery core, according to battery core
The height of temperature, the water temperature of regulating tank component, cistern assembly is opened in control, and the flowing water of preference temperature is made to flow through liquid heat exchange
Channel exchanges heat with thermal conductivity pipeline, is then exchanged heat again by thermal conductivity pipeline to battery core, adds to realize to battery core
Heat or cooling.The present invention can make the battery core in battery system maintain optimal operating temperature range, so that battery core be made to keep
Good working order.
Further, each heat exchanger plates 12 can have a liquid heat exchange channel 122 or multiple liquid heat exchange channels
122.Thermal conductivity pipeline and liquid heat exchange channel 122 can be in single side expansion, double side expanding or two-sided smooth knots on heat exchanger plates 12
Structure.Wherein, thermal conductivity pipeline is enclosed construction, and the shape of the closed thermal conductivity pipeline can be interconnected hexagonal honeycomb
Shape, or interconnected quadrangle, triangle, circle and zigzag, can also be the section being parallel to each other be it is round,
The shapes such as ellipse and polygon, or in which any combination of any two or more figures.Similarly, liquid heat exchange channel 122
Cross section may be the various shapes such as rectangular, round and diamond shape.
In one embodiment of this invention, it please refers to shown in Fig. 2, multiple arrangements of battery core 11 form multiple battery core rows 20, more
A heat exchanger plates 12 are in being intervally arranged, and at least one battery core of sandwiched arranges 20 between two adjacent heat exchanger plates 12.I other words adjacent two change
Only one battery core of sandwiched 20 can be arranged between hot plate 12, it can also be with the multiple battery cores rows 20 of sandwiched.In the present embodiment, battery core 20 is side
Shape battery core.Certainly, in other embodiments, battery core 20 can also be cylindrical electrical core and soft pack cell etc., and the invention is not limited thereto.
Further, liquid heat exchange channel 122 penetrates through the both ends of heat exchanger plates 12, liquid heat exchange channel 122 and heat pipe
Road is parallel.In other embodiments, liquid heat exchange channel 122 can be close to the periphery setting of heat exchanger plates 12, and surrounds in zigzag shape
Thermal conductivity pipeline.
In another embodiment of the invention, it please refers to shown in Fig. 3 and Fig. 4, heat exchanger plates 12 are U-shaped heat exchanger plates, heat exchange dress
10 are set to be integrally formed by multiple connected U-shaped heat exchanger plates.Prolong along the overbending direction of heat-exchanger rig 10 in liquid heat exchange channel 122
It stretches and penetrates through the both ends of heat-exchanger rig 10, liquid heat exchange channel 122 is parallel with thermal conductivity pipeline.Certainly, in other embodiments,
It liquid heat exchange channel 122 can be not parallel with thermal conductivity pipeline.
It in one more embodiment of the present invention, please refers to shown in Fig. 5, heat-exchanger rig 10 is by multiple end to end heat exchanger plates
12 are integrally formed, and multiple arrangements of battery core 11 form multiple battery core groups (attached not shown), and the battery core group is located in adjacent two and changes
Between hot plate 12.Similar with a upper embodiment, liquid heat exchange channel 122 extends along the overbending direction of heat-exchanger rig 10 and will heat exchange
The both ends of device 10 penetrate through, and liquid heat exchange channel 12 is parallel with thermal conductivity pipeline.
Further, heat-exchanger rig 10 further includes multiple flexible insulation thermally conductive sheets (attached not shown), flexible insulation thermally conductive sheet
It is located between heat exchanger plates 12 and battery core 11, flexible insulation thermally conductive sheet is to by the heat transfer of battery core 11 to heat exchanger plates 12.It is soft
The thermal conductivity of property insulating heat-conductive piece is conducive to conduct heat between heat exchanger plates 12 and battery core 11, while flexible insulation thermally conductive sheet is soft
Property and insulating properties battery core 11 can be protected from the collision and conductive interference of heat exchanger plates 12.Since heat conductive silica gel has good lead
Therefore hot property and insulation performance generally use material of main part of the heat conductive silica gel as flexible insulation thermally conductive sheet.Certainly, flexible
Other flexible insulation Heat Conduction Materials or the flexible phase-change material with insulating properties can also be used in insulating heat-conductive piece.It is understood that
It is, if not having flexible insulation thermally conductive sheet between heat exchanger plates 12 and battery core 11, then may be empty between heat exchanger plates 12 and battery core 11
Gas heat transfer, since the thermal resistance of air heat transfer is larger, in this way, the heat transfer efficiency of heat exchanger plates 12 may be reduced.
In the present embodiment, battery system 1 further includes heating device (attached not shown) and cooling device (attached not shown), heating
Device and cooling device are connect with cistern assembly 20, and heating device is used to the water in heating water tank component 20, cooling device
With the water in cooling water tank component 20.The heating device can be resistance heater or condenser etc., which can be
Water chiller or evaporator etc..It is appreciated that temperature control system 30 can control heating dress when battery core 11 is lower than optimum temperature range
It sets and the water in cistern assembly 20 is heated, to provide hot water for liquid heat exchange channel 122, to add to battery core 11
Heat；When battery core 11 is higher than optimum temperature range, temperature control system 30 can control cooling device and carry out to the water in cistern assembly 20
It is cooling, to provide cold water for liquid heat exchange channel 122, to be cooled down to battery core 11.
Further, refering to Figure 1, battery system 1 further includes electronic water pump 40, electronic water pump 40 is set to inlet tube
On 50.Temperature control system 30 is electrically connected with electronic water pump 40, and temperature control system 30 controls the flow of inlet tube 50 by electronic water pump 40.
The pressure of liquid heat exchange channel 122 and cistern assembly 20 can be made excessive it is understood that the water flow of inlet tube 50 is excessively high, into
The water flow of liquid pipe 50 is too small and is unfavorable for exchanging heat to battery core 11, therefore, passes through the accurate regulation and control of electronic water pump 40
The water flow of inlet tube 50 is conducive to the even running of battery system 1.In addition, the temperature when battery core 11 excessively deviates its best work
When making temperature, by electronic water pump 40 can appropriate increased water flow amount, battery core 11 is heated or be cooled down rapidly.
In another embodiment of the invention, it please refers to shown in Fig. 6, cistern assembly 20 includes boiler 21 and cold water storage cistern
22.Heating device is specially heater, and cooling device is specially water chiller.Heater is connect with boiler 21, water chiller
It is connect with cold water storage cistern 22.Heater is to heat the water in boiler 21, and water chiller is to in cold water storage cistern 22
Water cools down.It is understood that temperature control system 30 can control heating when the water temperature in boiler 21 is lower than required temperature
Device heats the water in boiler 21；When the water temperature in cold water storage cistern 22 is higher than required temperature, temperature control system 30 can be controlled
Water chiller cools down to the water in cold water storage cistern 22.
Further, inlet tube 50 includes the water inlet supervisor being connected to the liquid inlet in liquid heat exchange channel 122 and hot water
The first exit branch that case 21 is connected to and the second exit branch being connected to cold water storage cistern 22.Boiler 21 and the first exit branch are logical
Cross an outlet valve 51 connection.Cold water storage cistern 22 is connected to the second exit branch by another outlet valve 51.Two outlet valves 51 with temperature
Control system 30 is electrically connected, and temperature control system 30 controls the opening and closing of boiler 21 and cold water storage cistern 22 by outlet valve 51.Specifically
, when the actual temperature of battery core 11 is lower than the minimum value of its optimum working temperature range, the control of temperature control system 30 is opened and heat
The outlet valve 51 that water tank 21 is connected to passes through liquid and changes so that the water of boiler 21 be made to flow into inlet tube through the first exit branch
The passage of heat 122 heats battery core 11 finally by heat exchanger plates 12, the temperature of battery core 11 is made to rise to optimum working temperature model
It encloses.On the contrary, the control of temperature control system 30 is beaten when the actual temperature of battery core 11 is higher than the maximum value of its optimum working temperature range
The outlet valve 51 being connected to cold water storage cistern 21 is opened, so that the water of cold water storage cistern 21 be made to flow into inlet tube through the second exit branch, is passed through
Liquid heat exchange channel 122 cools down to battery core 11 finally by heat exchanger plates 12, the temperature of battery core 11 is made to drop to best effort
Temperature range.It is understood that in the above case said, wherein when an outlet valve 51 is in the open state, another outlet valve 51
Then it is in close state.
In the present embodiment, return pipe 60 is additionally provided between battery core 11 and cistern assembly 20.The liquid in liquid heat exchange channel 122
Outlet is connected to by return pipe 60 with cold water storage cistern 22 and/or boiler 21.It is understood that so set, can will flow through
The water in liquid heat exchange channel 122 is recycled and is recycled again, avoids the waste of water resource.Certainly, in other embodiments, electric
Cell system 1 can be not provided with return pipe 60, and the water for flowing through liquid heat exchange channel 122 can be exhausted directly, not be back to cistern assembly 20
In.
Further, return pipe 60 includes the return main and hot water being connected to the liquid outlet in liquid heat exchange channel 122
The the first reflux branch pipe being connected to of case 21 and the second reflux branch pipe being connected to cold water storage cistern 22.Boiler 21 and the first reflux branch pipe are logical
An inlet valve 61 connection is crossed, cold water storage cistern 22 is connected to the second reflux branch pipe by another inlet valve 61.Two inlet valves 61 are and institute
State the electrical connection of temperature control system 30.Temperature control system 30 controls the connection of boiler 21 and liquid heat exchange channel 122 by inlet valve 61
And disconnection, and the connection and disconnection of control cold water storage cistern 22 and liquid heat exchange channel 122.Specifically, temperature control system 30 can lead to
Cross the leaving water temperature that the modes such as infrared radiation thermometer obtain liquid heat exchange channel 122.When the leaving water temperature in liquid heat exchange channel 122 is high
Inlet valve 61 when the water temperature average value of 22 the two of boiler 21 and cold water storage cistern, on the control of temperature control system 30 first reflux branch pipe
It opens, flows into the water in return pipe 60 in boiler 21.On the contrary, when the leaving water temperature in liquid heat exchange channel 122 is lower than warm
When the water temperature average value of 22 the two of water tank 21 and cold water storage cistern, the inlet valve 61 on the control of temperature control system 30 second reflux branch pipe is opened
It opens, flows into the water in return pipe 60 in cold water storage cistern 22.It is understood that in the above case said, wherein at an inlet valve 61
When open state, another inlet valve 61 is then in close state.But when the leaving water temperature in liquid heat exchange channel 122 is equal to hot water
When the water temperature average value of 22 the two of case 21 and cold water storage cistern, two inlet valves 61 can be opened simultaneously, or are only opened wherein any
One inlet valve 61, so that the water in return pipe 60 flows at least one of boiler 21 and cold water storage cistern 22.
In the present invention, temperature control system 30 can monitor the temperature of battery core 11 in real time, be changed by the temperature control fluids of monitoring
Fluid temperature in the passage of heat 122, and the flow of control liquid, or even transmit messages when the temperature of battery core 11 is uncontrollable to BMS
Alert instruction, request power-off etc..Further, it please refers to shown in Fig. 7, temperature control system 30 includes that water tank control unit 32 and control are total
At case 31.Control assembly case 31 is electrically connected with battery core 11, and water tank controls unit 32 and is electrically connected with control assembly case 31.Control assembly
Case 31 can monitor the temperature of battery core 11 in real time, and can control unit 32 by water tank and remove control boiler 21 and cold water storage cistern
22 opening and closing, and the flow etc. of control electronic water pump 40.
A kind of temprature control method of battery system, the temprature control method of the battery system is also disclosed in the embodiment of the present invention
Applied to the battery system 1.It please refers to shown in Fig. 8, Fig. 8 is one embodiment of temprature control method of battery system of the present invention
Flow diagram.The temprature control method of the battery system the following steps are included:
S1: the actual temperature T of battery core 11 is obtained1；
Temperature control system 30 is firstly the need of the actual temperature T for obtaining battery core 111.Specifically, temperature control system 30 has and battery core
The temperature sensor of 11 connections, temperature sensor can measure the actual temperature of multiple battery cores 11.Certainly, in other embodiments
In, temperature control system 30 can obtain the actual temperature T of battery core 11 by other ways such as infrared measurement of temperature1。
S2: judge temperature T1Whether the optimal operating temperature range T of battery core 11 is in0, wherein T0∈[Ta,Tb]；
If so, returning to step S1；
If it is not, then continuing to execute step S3；
The actual temperature T of the acquisition battery core 11 of temperature control system 301Afterwards, temperature T is then judged1It is whether best in battery core 11
Operating temperature range T0, wherein T0∈[Ta,Tb].In the present embodiment, TaIt is T0Minimum value, Ta20 DEG C are taken, TbIt is T0's
Maximum value, TbTake 30 DEG C.It is understood that the optimum working temperature range of battery core also can be due to battery system difference
Difference, therefore, in other embodiments, T0Other temperature ranges can be taken.As the actual temperature T of battery core 111In optimal work
Make temperature range T0, illustrate that, it is not necessary that battery core 11 is heated or cooled down, temperature control system 30 can return to step S1: obtaining electricity
The actual temperature T of core 111.As the actual temperature T of battery core 111It is not at optimal operating temperature range T0, illustrate to need to battery core
11 are heated or are cooled down, and temperature control system 30 will continue to execute the step of battery core 11 is heated or cooled down.
S3: judge temperature T1Whether the optimal operating temperature range T of battery core 11 is exceeded0；
S4: by the lower water temperature of inlet tube 50 to T2, T0、T1And T2Meet following relationship between three:
Wherein, as temperature T1Less than TaWhen, T2>T0>T1, the water in heating devices heat cistern assembly 20 is controlled to temperature
T2, and cistern assembly unlatching is controlled, to be T to the inlet tube delivery temperature2Water flow；
As temperature T1Greater than TbWhen, T2<T0<T1, the water in cooling device cooling water tank component 20 is controlled to temperature T2, and control
Cistern assembly processed is opened, to be T to the inlet tube delivery temperature2Water flow；
S5: the water flow for controlling the inlet tube 50 is delivered to the liquid heat exchange channel 122.
It is understood that the environment of severe cold can make the temperature of battery core 11 be lower, and the environment of heat and battery core 11
Fever in body charge and discharge process all can be such that the temperature of battery core 11 gets higher, and the temperature of battery core 11, which is lower or gets higher, may all make electricity
The actual temperature T of core 111Beyond the optimal operating temperature range T of battery core 110.As temperature T1Less than TaWhen, illustrate battery core 11 at this time
Actual temperature it is relatively low, temperature control system 30 needs for the water temperature in liquid heat exchange channel 122 to be turned up, with by heat exchanger plates 12 to battery core
11 are heated, and therefore, control the water in heating devices heat cistern assembly 20 to temperature T2, and control cistern assembly 20 and open
It opens, to be T to 50 delivery temperature of inlet tube2Water flow, at this point, T2>T0>T1；As temperature T1Greater than TbWhen, illustrate battery core 11 at this time
Actual temperature it is higher, temperature control system 30 needs the water temperature by liquid heat exchange channel 122 to turn down, with by heat exchanger plates 12 to battery core
11 cool down, and therefore, control the water in cooling device cooling water tank component 20 to temperature T2, and control cistern assembly 20 and open
It opens, to be T to 50 delivery temperature of inlet tube2Water flow, at this point, T2<T0<T1。
In the technical solution of the present invention, the actual temperature T of temperature control system real time monitoring and acquisition battery core1, and judge temperature T1
Whether the optimal operating temperature range T of battery core is in0.As the actual temperature T of battery core1In the optimal operating temperature range of battery core
T0When, temperature control system does not control inlet tube and conveys liquid to liquid heat exchange channel, and continues to monitor the actual temperature T of battery core1.When
The actual temperature T of battery core1Beyond the optimal operating temperature range T of battery core0When, temperature control system calculates and the water of regulating tank component
Temperature, and so that the flowing water of preference temperature is flowed through liquid heat exchange channel and exchange heat with thermal conductivity pipeline, then pass through thermal conductivity pipeline pair again
Battery core exchanges heat, so that real heated or cooled down to battery core.The present invention can make the temperature of battery core maintain optimal work
Make temperature range, so that battery core be made to keep good working order.
Further, further comprising the steps of after the step S4 and before the step S5:
S41: when the water temperature of inlet tube 50 is T2When flow with electronic water pump 40 on inlet tube 50 is maximum value, electricity is calculated
Core 11 is restored to optimum working temperature range T0Required time t1；
S42: judge t1Whether preset time t is greater than0, if so, improving T2With T0Between temperature difference T.
It is understood that be restored to battery core 11 as early as possible in optimal operating temperature range, it can be by electronic water pump 40
Flow adjust to maximum value, pressure threshold value of certain maximum value no more than liquid heat exchange channel 122 and cistern assembly 20.
When the flow of electronic water pump 40 is maximum value, temperature control system 30 calculates battery core 11 and is restored to optimum working temperature range T0It is required
Want time t1.Work as t1Greater than preset time t0, illustrate that maximum stream flow can not be in short time t1Battery core 11 is inside set to restore best effort
Temperature range T0, at this point, the control of temperature control system 30 improves T2With T0Between temperature difference T.That is the control of temperature control system 30 improves hot water
Temperature or reduce cold water temperature, with make as early as possible battery core 11 heat up or cooling.
Alternatively, further comprising the steps of after the step S4 and before the step S5:
By T1With TmIt is compared, and by T1With TnIt is compared,
Work as Tn≤T1≤TmWhen, the flow for being set to electronic water pump 40 on the inlet tube 50 is adjusted to Q0；
As temperature T1≥TmWhen, the flow for being set to electronic water pump 40 on the inlet tube 50 is adjusted to Q1；
As temperature T1≤TnWhen, the flow for being set to electronic water pump 40 on the inlet tube 50 is adjusted to Q2。
Wherein, Tm=T0+ 5 DEG C, Tn=T0- 5 DEG C, Q1>Q0>=0, Q2>Q0≥0。
Battery core 11 and the pressure of cistern assembly 20 can be made excessive it is understood that the water flow of inlet tube 50 is excessively high, into
The water flow of liquid pipe 50 is too small and is unfavorable for exchanging heat to battery core 11, therefore, generally passes through electronic water pump 40 for inlet tube 50
Water flow control in stable range.But work as the temperature T of battery core 111When excessively deviateing its optimum working temperature, temperature control system
System 30 can properly increase the water flow of inlet tube 50 by electronic water pump 40, to accelerate that battery core 11 is heated or cooled down.Tool
Body, set preset temperature TmAnd Tn, wherein Tm=T0+ 5 DEG C, Tn=T0-5℃.Work as Tn<T1<TmWhen, inlet tube 50 will be set to
The flow of upper electronic water pump 40 is adjusted to Q0；As temperature T1≥TmWhen, the stream of electronic water pump 40 on the inlet tube 50 will be set to
Amount is adjusted to Q1, and Q1>Q0；As temperature T1≤TnWhen, the flow for being set to electronic water pump 40 on the inlet tube 50 is adjusted
To Q2, and Q2>Q0.Certainly, flow Q1And Q2No more than the pressure threshold value of battery core 11 and cistern assembly 20.It is understood that
Being can be multiple class by the flow set of electronic water pump 40, temperature control system 30 can be according to the temperature T of battery core 111Deviate
Its optimum working temperature T0Degree, control electronic water pump 40 be adjusted to corresponding class, to adjust inlet tube 50 to liquid
The flow of 122 feed flow of heat exchanger channels.
In another embodiment of the invention, cistern assembly 20 further includes boiler 21 and cold water storage cistern 22, the step S4
It is further comprising the steps of:
Obtain the water temperature T of boiler 21hWith the water temperature T of cold water storage cistern 22c；
As temperature ThLess than T2When, control heater carries out being heated to T to the water of boiler 21h=T2Afterwards, boiler is controlled
21 open and to 50 delivery temperature of inlet tube be T2Water flow；
As temperature TcGreater than T2When, control water chiller carries out being cooled to T to the water of cold water storage cistern 22c=T2Afterwards, cold water is controlled
Case 22 open and to 50 delivery temperature of inlet tube be T2Water flow.
It is understood that when the water temperature T in boiler 21hLower than required temperature T2When, temperature control system 30 is to boiler 21
In water carry out being heated to Th=T2, specifically, the water in boiler 21 is heated by controlling heater；Work as cold water storage cistern
Water temperature T in 22cHigher than required temperature T2When, temperature control system 30, which can control, to carry out the water in cold water storage cistern 22 to be cooled to Tc=T2,
Specifically, the water in cold water storage cistern 21 is heated by controlling water chiller.When the water temperature of boiler 21 or cold water storage cistern 22 arrives
Up to required temperature T2When, temperature control system 30 is just corresponding to open corresponding boiler 21 or cold water storage cistern 22, to prevent from not reaching institute
The liquid of temperature is needed to enter in liquid heat exchange pipe 122.
Further, further include step S6 after the step S5:
Obtain the leaving water temperature T in liquid heat exchange channel 1223；
Judge leaving water temperature T3Whether (T is greater thana+Tb)/2；
As temperature T3Greater than (Ta+TbThe water outlet of)/2, control liquid heat exchange channel 122 enters boiler 21；
As temperature T3Less than (Ta+TbThe water outlet of)/2, control liquid heat exchange channel 122 enters cold water storage cistern 22；
As temperature T3Equal to (Ta+TbThe water outlet of)/2, control liquid heat exchange channel 122 enters cold water storage cistern 22 and boiler 21
At least one of.
Specifically, temperature control system 30 can obtain the leaving water temperature in liquid heat exchange channel 122 by modes such as infrared measurement of temperature
T3.The water outlet in liquid heat exchange channel 122 can be back to boiler 21 and/or cold water storage cistern 22 by return pipe 60.Return pipe 60
Including be connected to the liquid outlet in liquid heat exchange channel 122 return main, be connected to boiler 21 first reflux branch pipe and
The second reflux branch pipe being connected to cold water storage cistern 22.Boiler 21 is connected to the first reflux branch pipe by an inlet valve 61, cold water storage cistern
22 are connected to the second reflux branch pipe by another inlet valve 61.Two inlet valves 61 are electrically connected with temperature control system 30.When liquid changes
The leaving water temperature T of the passage of heat 1223Higher than the water temperature average value (T of both cold water storage cistern 22 and boiler 21a+TbWhen)/2, temperature control system
Inlet valve 61 on 30 control the first reflux branch pipe of system is opened, and the water outlet in control liquid heat exchange channel 122 enters boiler 21.Phase
Instead, as the leaving water temperature T in liquid heat exchange channel 1223Lower than the water temperature average value (T of both cold water storage cistern 22 and boiler 21a+
TbWhen)/2, the inlet valve 61 on the control of temperature control system 30 second reflux branch pipe is opened, and the water in return pipe 60 is made to flow into cold water storage cistern
In 22.As the leaving water temperature T in liquid heat exchange channel 1223Equal to the water temperature average value (T of both cold water storage cistern 22 and boiler 21a+
TbWhen)/2, temperature control system 30 controls two inlet valves 61 and all opens, or only opens wherein any one inlet valve 61, so that
Water in return pipe 60 flows at least one of cold water storage cistern 22 and boiler 21.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of battery system characterized by comprising
Multiple battery cores；
Heat-exchanger rig, the heat-exchanger rig include multiple heat exchanger plates, and the heat exchanger plates to the battery core to exchange heat, the heat exchange
There is closed thermal conductivity pipeline on plate, be filled with heat-transfer working medium in the thermal conductivity pipeline, and be provided with liquid on the heat exchanger plates
Heat exchanger channels；
Cistern assembly, the cistern assembly are connected to by inlet tube with the liquid heat exchange channel, the cistern assembly to for
The liquid heat exchange channel provides hot water or cold water；
Temperature control system connects the battery core and the cistern assembly, and the temperature control system is to monitor and obtain the electricity in real time
The temperature of core, and the water temperature in the liquid heat exchange channel is adjusted according to the temperature of the battery core, to exchange heat to the battery core.
2. battery system as described in claim 1, which is characterized in that multiple heat exchanger plates are in be intervally arranged, multiple described
Battery core arranges to form multiple battery cores row, and at least battery core row described in sandwiched one, the liquid change between the heat exchanger plates of adjacent two
The passage of heat penetrates through the both ends of the heat exchanger plates, and the liquid heat exchange channel is parallel with the thermal conductivity pipeline.
3. battery system as described in claim 1, which is characterized in that the heat exchanger plates are U-shaped heat exchanger plates, the heat-exchanger rig
It is integrally formed by multiple connected U-shaped heat exchanger plates, alternatively,
The heat-exchanger rig is integrally formed by multiple end to end heat exchanger plates, and multiple battery cores arrange to form multiple electricity
Core group, the battery core group are located between the heat exchanger plates of adjacent two.
4. battery system as claimed in claim 4, which is characterized in that the battery system further includes electronic water pump, the electricity
Sub- water pump is set on the inlet tube, and the temperature control system is electrically connected with the electronic water pump, and the temperature control system passes through described
Electronic water pump controls the flow of the inlet tube.
5. the battery system as described in any one of Claims 1-4, which is characterized in that the battery system further includes adding
Hot device and water chiller, the cistern assembly include boiler and cold water storage cistern, and the heater is connect with the boiler, described
Water chiller is connect with the cold water storage cistern, and the heater is to heat the water in the boiler, the water cooling unit
Group is to cool down to the water in the cold water storage cistern.
6. a kind of temprature control method of battery system is applied to battery system as described in claim 1, which is characterized in that
The following steps are included:
S1: the actual temperature T of battery core is obtained1；
S2: judge temperature T1Whether the optimal operating temperature range T of battery core is in0, wherein T0∈[Ta,Tb],
If so, returning to step S1；
If it is not, then continuing to execute step S3；
S3: judge temperature T1Whether the optimal operating temperature range T of battery core is exceeded0；
S4: by the lower water temperature of inlet tube to T2, T0、T1And T2Meet following relationship between three:
Wherein, as temperature T1Less than TaWhen, T2>T0>T1, the water in heating devices heat cistern assembly is controlled to temperature T2, and control
Cistern assembly processed is opened, to be T to the inlet tube delivery temperature2Water flow；
As temperature T1Greater than TbWhen, T2<T0<T1, the water in cooling device cooling water tank component is controlled to temperature T2, and control water tank
Component is opened, to be T to the inlet tube delivery temperature2Water flow；
S5: the water flow for controlling the inlet tube is delivered to the liquid heat exchange channel.
7. the temprature control method of battery system as claimed in claim 6, which is characterized in that after the step S4 and institute
It is further comprising the steps of before stating step S5:
S41: when the water temperature of the inlet tube is T2When flow with electronic water pump on the inlet tube is maximum value, battery core is calculated
It is restored to optimum working temperature range T0Required time t1；
S42: judge t1Whether preset time t is greater than0, if so, improving T2With T0Between temperature difference T.
8. the temprature control method of battery system as claimed in claim 6, which is characterized in that after the step S4 and institute
It is further comprising the steps of before stating step S5:
By T1With TmIt is compared, and by T1With TnIt is compared,
Work as Tn<T1<TmWhen, the flow for being set to electronic water pump on the inlet tube is adjusted to Q0；
As temperature T1≥TmWhen, the flow for being set to electronic water pump on the inlet tube is adjusted to Q1；
As temperature T1≤TnWhen, the flow for being set to electronic water pump on the inlet tube is adjusted to Q2,
Wherein, Tm=T0+ 5 DEG C, Tn=T0- 5 DEG C, Q1>Q0>=0, Q2>Q0≥0。
9. the temprature control method of the battery system as described in any one of claim 6 to 8, which is characterized in that the water
Box assembly further includes boiler and cold water storage cistern, and the step S4 is further comprising the steps of:
Obtain the water temperature T of boilerhWith the water temperature T of cold water storage cisternc；
As temperature ThLess than T2When, control heater carries out being heated to T to the water of boilerh=T2Afterwards, control boiler is opened simultaneously
It is T to the inlet tube delivery temperature2Water flow；
As temperature TcGreater than T2When, control water chiller carries out being cooled to T to the water of cold water storage cisternc=T2Afterwards, control cold water storage cistern is opened
And to the inlet tube delivery temperature be T2Water flow.
10. the temprature control method of battery system as claimed in claim 9, which is characterized in that after the step S5 also
Including step S6:
Obtain the leaving water temperature T in liquid heat exchange channel3；
Judge leaving water temperature T3Whether (T is greater thanh+Tc)/2；
As temperature T3Greater than (Th+TcThe water outlet of)/2, control liquid heat exchange channel enters boiler；
As temperature T3Less than (Th+TcThe water outlet of)/2, control liquid heat exchange channel enters cold water storage cistern；
As temperature T3Equal to (Th+Tc)/2, the water outlet in control liquid heat exchange channel enter at least one in cold water storage cistern and boiler
Person.
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| CN201910083884.4A CN109802195A (en) | 2019-01-28 | 2019-01-28 | Battery system and temperature control method thereof |
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| CN201910083884.4A CN109802195A (en) | 2019-01-28 | 2019-01-28 | Battery system and temperature control method thereof |
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| CN117249506A (en) * | 2023-11-15 | 2023-12-19 | 珠海格力电器股份有限公司 | Photovoltaic air conditioning system and control method thereof |
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