CN112186311A - Battery module using semiconductor refrigerating sheet to control temperature - Google Patents
Battery module using semiconductor refrigerating sheet to control temperature Download PDFInfo
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- CN112186311A CN112186311A CN202011109020.4A CN202011109020A CN112186311A CN 112186311 A CN112186311 A CN 112186311A CN 202011109020 A CN202011109020 A CN 202011109020A CN 112186311 A CN112186311 A CN 112186311A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 51
- 238000001816 cooling Methods 0.000 claims abstract description 146
- 239000007788 liquid Substances 0.000 claims abstract description 89
- 230000017525 heat dissipation Effects 0.000 claims abstract description 40
- 239000003292 glue Substances 0.000 claims abstract description 11
- 238000005265 energy consumption Methods 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 238000011835 investigation Methods 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims 7
- 229910000906 Bronze Inorganic materials 0.000 claims 1
- 229910052790 beryllium Inorganic materials 0.000 claims 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims 1
- 239000010974 bronze Substances 0.000 claims 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000004146 energy storage Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- 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
- H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
-
- 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
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6572—Peltier elements or thermoelectric devices
-
- 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
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
-
- 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
Abstract
The invention discloses a battery module for controlling temperature by using a semiconductor cooling fin, which comprises a battery body, a heat dissipation honeycomb fin, heat conduction glue, a heat conduction layer, a semiconductor cooling fin, a heat dissipation grid, a battery temperature sensor, a box inner shell, a main circuit channel, a main controller, a box outer shell, a circuit secondary channel, a liquid cooling opening degree adjusting electromagnetic valve, a liquid cooling belt, a liquid cooling outlet interface, a battery fuse and a battery current collecting point. The invention can effectively improve the heat management level of the battery, ensure that the battery works in a proper temperature range, improve the performance of the battery, prolong the service life of the battery and greatly improve the lightweight level of an energy storage system.
Description
Technical Field
The invention relates to the technical field of thermal management of power batteries, in particular to a battery module using a semiconductor refrigerating sheet to control temperature.
Background
In various energy storage technologies, a lithium ion battery module gradually becomes the best choice for industrial and vehicle-mounted energy storage devices due to the high energy density characteristic and high commercialization prospect of the lithium ion battery module, but the performance of a high-capacity and high-power energy storage battery system is sensitive to temperature change, and the service life and the performance of the battery can be influenced due to long-time high and low temperature environment and system temperature difference accumulation, so that a special cooling device is required to be adopted for heat dissipation of the high-power energy storage battery module during working, and meanwhile, the system is ensured to be in a proper temperature range as far as possible.
At present, the mainstream heat management adopts an air cooling (heating) mode, a liquid cooling (heating) mode or an air conditioning refrigerant direct cooling (heating) mode, the air cooling conversion speed is high, but the air heat transfer efficiency is low, and the uniformity is poor; the air conditioning refrigerant has high heat transfer efficiency due to low heat capacity, but has insufficient uniformity; the liquid cooling has high heat transfer efficiency and good uniformity, but because the heat capacity of the system is high, the cooling liquid needs to be heated or cooled firstly, the energy utilization rate is low, and the heating and cooling states can not be switched quickly.
Disclosure of Invention
The present invention is directed to a battery module using a semiconductor cooling sheet to control temperature, so as to solve the problems of the related art.
In order to solve the technical problems, the invention provides the following technical scheme: a battery module using semiconductor cooling fins to control temperature comprises a battery body, heat dissipation honeycomb fins, heat conduction glue, a heat conduction layer, semiconductor cooling fins, heat dissipation grids, a battery temperature sensor, a box inner shell, a circuit main channel, a main controller, a box outer shell, a circuit secondary channel, a liquid cooling opening degree adjusting valve, a liquid cooling belt, a liquid cooling outlet interface, a battery fuse and a battery current collecting point, wherein heat dissipation fins are arranged around the battery body and at the bottom end of the battery body, the heat conduction glue is wrapped around the heat dissipation honeycomb fins and at the bottom end of the heat dissipation honeycomb fins, the heat conduction layer is arranged around the heat conduction glue and at the bottom end of the heat conduction layer, the cooling fins are bonded at the two ends of the heat conduction layer, the heat dissipation grids are bonded at the outer sides of the cooling fins, the battery temperature sensor is arranged between, the utility model discloses a battery box, including box inner shell, box outer shell, liquid cooling opening degree adjusting solenoid valve, liquid cooling area, liquid cooling outlet interface, battery body positive pole electric connection has battery fuse, battery body negative pole electric connection has battery current collection point.
Preferably, the structural shape of the heat dissipation honeycomb piece is a honeycomb shape, the heat dissipation honeycomb piece is composed of a plurality of regular hexagon metal flakes, and the bottom of each regular hexagon metal flake is provided with a heat dissipation plate which is tightly connected.
Preferably, the top end and the bottom end of the heat dissipation grid are provided with bulges, the two ends of the heat dissipation grid are provided with bulges, and the height of the bulges is the same as the width of the semiconductor chilling plate.
Preferably, the surface of the inner shell of the box body is provided with a threaded hole for fixing the heat dissipation grid.
Preferably, the liquid cooling opening adjusting valve internally mounted has a flowmeter, the liquid cooling opening adjusting valve internally mounted has a temperature sensor.
Preferably, the main controller is in communication connection with the battery temperature sensor, the main controller is in communication connection with the semiconductor refrigerating sheet, the main controller is in communication connection with the liquid cooling opening regulating valve, the main controller is in communication connection with the flow meter inside the liquid cooling opening regulating valve, the main controller is in communication connection with the temperature sensor inside the liquid cooling opening regulating valve, the main controller is electrically connected with the battery fuse, and the main controller is electrically connected with the battery current collecting point.
Preferably, the main controller measures the battery temperature T through the battery temperature sensor, and the main controller records the optimal temperature T of the batteryPThe main controller measures flow opening K through the liquid cooling opening adjusting valve, measures flow L through a flowmeter inside the liquid cooling opening adjusting valve, and measures flow temperature T through a temperature sensor inside the liquid cooling opening adjusting valveLWhat is, what isThe main controller measures the current I and the voltage U of the refrigerating sheet through the refrigerating sheet, obtains an on-off digital signal R through the battery fuse, and obtains the current I of the main body of the battery through a current acquisition point of the batteryDMain voltage of battery UD,
According to equation 1:
△T＝T-TP
wherein Δ T represents a numerical difference between an actual measured temperature of the battery and an optimal temperature of the battery;
according to equation 2:
△TL＝T-TL
wherein Δ TLThe numerical difference between the actual measured temperature of the battery and the liquid cooling temperature is represented;
according to equation 3:
S＝(U1*I1+U2*I2+U3*I3+U4*I4+...+UN*IN)*a+L*(TL0-TL)*K*b
wherein S represents the value of energy consumption per unit time, U1To UNTo the value of the voltage of the cooling plate I1To INIs the current value of the refrigerating sheet, a is the unit actual energy consumption coefficient of the refrigerating sheet, L is the liquid cooling flow, TL0For liquid-cooled starting temperature, TLAnd K is the opening degree of the liquid cooling regulating valve, and b is the actual energy consumption coefficient of the liquid cooling unit.
According to equation 4:
△T*V*c＝[(M*UN*IN)/(M0*U0*I0)]*△TL*K*d
wherein V represents the battery volume, c represents the battery energy consumption coefficient per unit volume temperature, M represents the actual cooling fin contact area, and U represents the temperature of the batteryNVoltage of the cooling fin indicating that the battery reaches the optimum temperature, INCurrent, Δ T, of the cooling fin indicating that the battery has reached the optimum temperatureLThe numerical difference between the actual measured temperature of the battery and the liquid cooling temperature is represented, K represents the opening degree of the liquid cooling regulating valve, and d represents the conduction energy consumption coefficient from the refrigerating plate to the liquid cooling;
the master controller is composed of1. Calculating to obtain the optimal current value I of the semiconductor refrigerating sheet at two sides of the single battery according to the formula 2, the formula 3 and the formula 4NAnd the optimal opening K of the liquid cooling opening-adjusting electromagnetic valve.
Preferably, the main controller calculates to obtain the optimal current value of a single semiconductor refrigerating sheet and controls the current and the optimal current value to be the same, the main controller calculates to obtain the optimal opening degree of the liquid cooling opening degree adjusting electromagnetic valve and controls the opening degree and the optimal opening degree to be the same, the main controller obtains an on-off digital signal R through the battery fuse and sends out an alarm according to the on-off signal R, and the main controller obtains the current I of the battery main body through the battery current collecting pointDAnd a main cell voltage UDAnd passing a current IDSum voltage UDThe health degree of the battery main body is obtained through calculation for data acquisition, the main controller measures the battery temperature T through the battery temperature sensor and obtains the health degree of the semiconductor cooling sheet for reference investigation by combining the current value of a single semiconductor cooling sheet, and the main controller measures the flow temperature T through the temperature sensor in the liquid cooling opening regulating valveLAnd the health degree of the radiating grid is obtained by combining the temperature T of the battery for reference and examination.
Compared with the prior art, the invention has the following beneficial effects: the invention can rapidly heat and radiate a single battery by using the semiconductor chilling plate, can remarkably improve the heating and radiating effect of the semiconductor chilling plate by combining the liquid cooling system and the radiating grid, can obtain the attribute information of a plurality of elements of the battery module by the main controller, and can calculate and obtain the optimal current of the single semiconductor chilling plate and the optimal opening of the liquid cooling opening regulating solenoid valve so as to achieve the remarkable energy-saving effect, and the main controller can simultaneously combine the battery fuse, a battery current acquisition point, a battery temperature sensor and a temperature sensor in the liquid cooling opening regulating solenoid valve so as to obtain the health degree of the battery body, the semiconductor chilling plate and the radiating grid and the fusing condition of the fuse, and has certain reference and investigation performance.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the hardware architecture of the present invention;
FIG. 2 is a schematic diagram of the physical structure of the semiconductor chilling plate of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic side view of the present invention;
FIG. 5 is a schematic diagram of the acquisition control structure of the master controller of the present invention;
FIG. 6 is a schematic view of a heat dissipating honeycomb panel of the present invention;
FIG. 7 is a schematic view of a heat-dissipating grid structure according to the present invention;
FIG. 8 is a schematic diagram of the structure of the main controller and the main and sub-channels of the circuit of the present invention;
FIG. 9 is a schematic view of the structure of the inner casing and the heat dissipation grid of the present invention;
in the figure: 1. a tank body; 2. a heat dissipating honeycomb sheet; 3. heat conducting glue; 4. a heat conductive layer; 5. a semiconductor cooling sheet; 6. a heat dissipation grid; 7. a battery temperature sensor; 8. an inner shell of the box body; 9. a line main channel; 10. a master controller; 11. a case body shell; 12. a line sub-channel; 13. a liquid cooling opening degree regulating valve; 14. a liquid cooling zone; 15. a liquid cooling outlet interface; 16. a battery fuse; 17. battery current collection point.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, the present invention provides the following technical solutions:
a battery module using semiconductor cooling fins to control temperature comprises a battery body 1, heat dissipation honeycomb fins 2, heat conduction glue 3, a heat conduction layer 4, semiconductor cooling fins 5, heat dissipation grids 6, a battery temperature sensor 7, a box inner shell 8, a circuit main channel 9, a main controller 10, a box outer shell 11, a circuit secondary channel 12, a liquid cooling opening adjusting valve 13, a liquid cooling belt 14, a liquid cooling outlet interface 15, a battery fuse 16 and a battery current collecting point 17, wherein heat dissipation fins 2 are arranged around and at the bottom end of the battery body 1, the heat conduction glue 3 is wrapped around and at the bottom end of the heat dissipation honeycomb fins 2, the heat conduction layer 4 is arranged around and at the bottom end of the heat conduction glue 3, the cooling fins 5 are bonded at two ends of the heat conduction layer 4, the heat dissipation grids 6 are bonded at the outer side of the cooling fins 5, and the battery temperature sensor 7 is arranged between the bottom end of, the utility model discloses a battery, including heat-conducting layer 4, heat-conducting layer, circuit, main channel 9, liquid cooling aperture adjusting solenoid valve 13, liquid cooling area 14, liquid cooling outlet port 15, heat-conducting layer 6, heat-conducting layer 4, and bottom welding has box inner shell 8, box inner shell 8 with be provided with circuit main entrance 9 between the box outer shell 11, main controller 10 is installed to circuit main entrance one end, main controller 10 installs in 8 one side of box inner shell, circuit secondary channel 12 installs in 9 both sides of circuit main entrance, install in 8 surfaces of box inner shell in the 12 vertical parts of circuit, liquid cooling aperture adjusting solenoid valve 13 installs in first heat-conducting layer 6 one end, liquid cooling area 14 installs in adjacent heat-conducting layer 6, liquid cooling.
The structural shape of heat dissipation honeycomb piece 2 is the honeycomb shape, heat dissipation honeycomb piece 2 comprises several regular hexagon metal scale, zonulae occludens's heating panel is installed to regular hexagon metal scale bottom, and the metal scale of honeycomb shape is favorable to expanding exothermic heat absorption area to for the fin provides certain mechanical strength, be favorable to coping with special situations such as battery swell explosion.
6 tops of cooling grid and bottom have the arch, 6 both ends of cooling grid have the arch, and its protruding height is the same with semiconductor refrigeration piece width, and 6 tops of cooling grid and bottom have the arch can combine the sheetmetal with cooling grid fixed mounting inside the box inner shell, and the semiconductor refrigeration piece can be fixed to 6 both ends of cooling grid arch, convenient dismantlement and maintenance.
The surface of the inner shell 8 of the box body is provided with a threaded hole for fixing the heat dissipation grid 6, and the threaded hole is used for fixing the heat dissipation grid better.
Liquid cooling aperture governing valve 13 internally mounted has the flowmeter, liquid cooling aperture governing valve 13 internally mounted has temperature sensor, and more relevant information is provided for the master controller in the installation of flowmeter and temperature sensor, is favorable to the master controller to the accuse of holistic information to can reduce unnecessary energy loss, and provide the reference data in the aspect of the liquid cooling aperture governing valve.
The main controller 10 is in communication connection with the battery temperature sensor 7, the main controller 10 is in communication connection with the semiconductor refrigerating sheet 5, the main controller 10 is in communication connection with the liquid cooling opening adjusting valve 13, the main controller 10 is in communication connection with the flowmeter inside the liquid cooling opening adjusting valve 13, the main controller 10 is in communication connection with the temperature sensor inside the liquid cooling opening adjusting valve (13), the main controller 10 is in electric connection with the battery fuse 16, the main controller 10 is in electric connection with a battery current collection point 17, and the main controller is in communication connection with each element through a main circuit channel and a secondary circuit channel, so that unified management is facilitated.
The main controller 10 measures the battery temperature T through the battery temperature sensor 7, and the main controller 10 records the optimal temperature T of the batteryPThe main controller 10 measures a flow opening K through the liquid cooling opening adjusting valve, the main controller 10 measures a flow L through a flow meter inside the liquid cooling opening adjusting valve, and the main controller 10 measures a flow temperature T through a temperature sensor inside the liquid cooling opening adjusting valveLThe main controller 10 measures the current I and the voltage U of the refrigerating sheet 5 through the refrigerating sheet (5), the main controller 10 obtains an on-off digital signal R through a battery fuse 16, the main controller 10 obtains the current ID of the battery main body 1 through a battery current collecting point 17, and the voltage U of the battery main body 1D,
According to equation 1:
△T＝T-TP
wherein Δ T represents a numerical difference between an actual measured temperature of the battery and an optimal temperature of the battery;
according to equation 2:
△TL＝T-TL
wherein Δ TLRepresenting actual measurements of the batteryThe difference between the temperature and the liquid cooling temperature;
according to equation 3:
S＝(U1*I1+U2*I2+U3*I3+U4*I4+...+UN*IN)*a+L*(TL0-TL)*K*b
wherein S represents the value of energy consumption per unit time, U1To UNTo the value of the voltage of the cooling plate I1To INIs the current value of the refrigerating sheet, a is the unit actual energy consumption coefficient of the refrigerating sheet, L is the liquid cooling flow, TL0For liquid-cooled starting temperature, TLAnd K is the opening degree of the liquid cooling regulating valve, and b is the actual energy consumption coefficient of the liquid cooling unit.
According to equation 4:
△T*V*c＝[(M*UN*IN)/(M0*U0*I0)]*△TL*K*d
wherein V represents the battery volume, c represents the battery energy consumption coefficient per unit volume temperature, M represents the actual cooling fin contact area, and U represents the temperature of the batteryNVoltage of the cooling fin indicating that the battery reaches the optimum temperature, INCurrent, Δ T, of the cooling fin indicating that the battery has reached the optimum temperatureLThe numerical difference between the actual measured temperature of the battery and the liquid cooling temperature is represented, K represents the opening degree of the liquid cooling regulating valve, and d represents the conduction energy consumption coefficient from the refrigerating plate to the liquid cooling;
the main controller 10 obtains the optimal current value I of the semiconductor refrigerating sheet 5 at two sides of the single battery through calculation of formula 1, formula 2, formula 3 and formula 4NThe optimal opening K of the liquid cooling opening adjusting solenoid valve is determined by formula 3, the linear relation between the total energy consumption of the module and the current of the refrigerating sheet and the opening of the liquid cooling opening adjusting solenoid valve is determined by formula 4, the linear relation between the current of the refrigerating sheet and the opening heat conduction efficiency of the liquid cooling opening adjusting valve is determined by formula 4, S in formula 3 is taken as the minimum value meeting all formulas by combining formula 1 and formula 2, S represents the energy consumption value degree in unit time, and therefore the optimal current value I is obtainedNAnd the optimal opening K is in consideration of environmental protection and energy conservation, so that the energy utilization rate is improved, and the energy consumption of the whole module is reduced to the minimum.
The main controller 10 calculates to obtain the optimal current value of a single semiconductor refrigerating sheet 5 and controls the current and the optimal current value to be the same, the main controller 10 calculates to obtain the optimal opening degree of the liquid cooling opening degree adjusting electromagnetic valve 13 and controls the opening degree and the optimal opening degree to be the same, the main controller 10 obtains an on-off digital signal R through the battery fuse 16 and sends out an alarm according to the on-off signal R, and the main controller 10 obtains the current I of the battery main body 1 through the battery current collecting point 17DAnd the voltage U of the battery body 1DAnd passing a current IDSum voltage UDThe health degree of the battery body 1 is obtained through calculation for data acquisition, the main controller 10 measures the battery temperature T through the battery temperature sensor 7 and obtains the health degree of the semiconductor refrigerating sheet for reference investigation by combining the current value of the single semiconductor refrigerating sheet 5, and the main controller 10 measures the flow temperature T through the temperature sensor in the liquid cooling opening regulating valveLAnd the heat dissipation grid 6 is obtained by combining the battery temperature T for reference and examination, so that the heat management level of the battery is effectively improved, the battery is ensured to work in a proper temperature range, the performance of the battery is improved, the service life of the battery is prolonged, and meanwhile, the lightweight level of an energy storage system can be greatly improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides an use battery module of semiconductor cooling piece controlled temperature, including battery body (1), heat dissipation honeycomb piece (2), heat-conducting glue (3), heat-conducting layer (4), semiconductor cooling piece (5), radiator grid (6), battery temperature sensor (7), box inner shell (8), circuit main channel (9), master controller (10), box outer shell (11), circuit secondary channel (12), liquid cooling aperture governing valve (13), liquid cooling area (14), liquid cooling outlet interface (15), battery fuse (16), battery current collection point (17), its characterized in that: the battery comprises a battery body (1), heat dissipation fins (2) are arranged at the periphery and the bottom of the battery body (1), heat conduction glue (3) is wrapped at the periphery and the bottom of each heat dissipation honeycomb piece (2), heat conduction layers (4) are arranged at the periphery and the bottom of each heat conduction glue (3), refrigerating sheets (5) are bonded at two ends of each heat conduction layer (4), heat dissipation grids (6) are bonded at the outer sides of the refrigerating sheets (5), a battery temperature sensor (7) is installed between the bottom ends of the heat dissipation fins (2) and the bottom end of each heat conduction layer (4), a box inner shell (8) is welded at the top end and the bottom end of each heat dissipation grid (6) and the top end and the bottom end of each heat conduction layer (4), a circuit main channel (9) is arranged between each box inner shell (8) and each box outer shell (11), the utility model discloses an electricity generation device, including circuit main entrance (9), circuit secondary entrance (12), install in box inner shell (8) surface in circuit main entrance (9) both sides, install in first radiator-grid (6) one end in circuit secondary entrance (12) vertical part, liquid cooling aperture adjusting solenoid valve (13), install in adjacent radiator-grid (6) liquid cooling area (14), install in last radiator-grid (6) one end liquid cooling export interface (15), battery body (1) anodal electric connection has battery fuse (16), battery body (1) negative pole electric connection has battery current to gather some (17).
2. The battery module as set forth in claim 1, wherein the semiconductor cooling fin is used for controlling temperature, and the semiconductor cooling fin is used for cooling the battery module: the structural shape of heat dissipation honeycomb piece (2) is the honeycomb shape, heat dissipation honeycomb piece (2) comprises several regular hexagon metal scale, zonulae occludens's heating panel is installed to regular hexagon metal scale bottom.
3. The battery module as set forth in claim 1, wherein the semiconductor cooling fin is used for controlling temperature, and the semiconductor cooling fin is used for cooling the battery module: the heat dissipation grid (6) is made of beryllium bronze, protrusions are arranged at the top end and the bottom end of the heat dissipation grid (6), protrusions are arranged at two ends of the heat dissipation grid (6), and the protrusion height of the protrusions is the same as the width of the semiconductor refrigerating sheet.
4. The battery module as set forth in claim 1, wherein the semiconductor cooling fin is used for controlling temperature, and the semiconductor cooling fin is used for cooling the battery module: the surface of the inner shell (8) of the box body is provided with a threaded hole for fixing the heat dissipation grid (6).
5. The battery module as set forth in claim 1, wherein the semiconductor cooling fin is used for controlling temperature, and the semiconductor cooling fin is used for cooling the battery module: the liquid cooling opening regulating valve (13) internally mounted has a flowmeter, the liquid cooling opening regulating valve (13) internally mounted has a temperature sensor.
6. The battery module as set forth in claim 1, wherein the semiconductor cooling fin is used for controlling temperature, and the semiconductor cooling fin is used for cooling the battery module: master controller (10) and battery temperature sensor (7) communication connection, master controller (10) and semiconductor refrigeration piece (5) communication connection, master controller (10) and liquid cooling aperture governing valve (13) communication connection, master controller (10) and the inside flowmeter communication connection of liquid cooling aperture governing valve (13), master controller (10) and the inside temperature sensor communication connection of liquid cooling aperture governing valve (13), master controller (10) and battery fuse (16) electric connection, master controller (10) and battery electric current collection point (17) electric connection.
7. The battery module as set forth in claim 6, wherein the semiconductor cooling fin is used for controlling the temperature of the battery module, and the semiconductor cooling fin is used for: the main controller (10) measures the battery temperature T through the battery temperature sensor (7), and the main controller (10) records the optimal temperature T of the batteryPThe main controller (10) measures flow opening K through the liquid cooling opening adjusting valve, the main controller (10) measures flow L through a flowmeter inside the liquid cooling opening adjusting valve, and the main controller (10) measures flow temperature T through a temperature sensor inside the liquid cooling opening adjusting valveLThe main controller (10) measures the current I and the voltage U of the refrigerating sheet (5) through the refrigerating sheet (5), the main controller (10) obtains an on-off digital signal R through a battery fuse (16), the main controller (10) obtains the current ID of the battery main body (1) through a battery current acquisition point (17), and the battery main bodyBulk (1) voltage UD,
According to equation 1:
△T＝T-TP
wherein Δ T represents a numerical difference between an actual measured temperature of the battery and an optimal temperature of the battery;
according to equation 2:
△TL＝T-TL
wherein Δ TLThe numerical difference between the actual measured temperature of the battery and the liquid cooling temperature is represented;
according to equation 3:
S＝(U1*I1+U2*I2+U3*I3+U4*I4+...+UN*IN)*a+L*(TL0-TL)*K*b
wherein S represents the value of energy consumption per unit time, U1To UNTo the value of the voltage of the cooling plate I1To INIs the current value of the refrigerating sheet, a is the unit actual energy consumption coefficient of the refrigerating sheet, L is the liquid cooling flow, TL0For liquid-cooled starting temperature, TLAnd K is the opening degree of the liquid cooling regulating valve, and b is the actual energy consumption coefficient of the liquid cooling unit.
According to equation 4:
△T*V*c＝[(M*UN*IN)/(M0*U0*I0)]*△TL*K*d
wherein V represents the battery volume, c represents the battery energy consumption coefficient per unit volume temperature, M represents the actual cooling fin contact area, and U represents the temperature of the batteryNVoltage of the cooling fin indicating that the battery reaches the optimum temperature, INCurrent, Δ T, of the cooling fin indicating that the battery has reached the optimum temperatureLThe numerical difference between the actual measured temperature of the battery and the liquid cooling temperature is represented, K represents the opening degree of the liquid cooling regulating valve, and d represents the conduction energy consumption coefficient from the refrigerating plate to the liquid cooling;
the main controller (10) obtains the optimal current value I of the semiconductor refrigerating sheet (5) at two sides of the single battery through calculation of the formula 1, the formula 2, the formula 3 and the formula 4NAnd the optimal opening K of the liquid cooling opening-adjusting electromagnetic valve.
8. The battery module as set forth in claim 7, wherein the semiconductor cooling fin is used for controlling the temperature of the battery module, and the semiconductor cooling fin is used for: the main controller (10) calculates to obtain the optimal current value of a single semiconductor refrigerating sheet (5) and controls the current and the optimal current value to be the same, the main controller (10) calculates to obtain the optimal opening of the liquid cooling regulating opening electromagnetic valve (13) and controls the opening to be the same as the optimal opening value, the main controller (10) obtains an on-off digital signal R through a battery fuse (16) and sends out an alarm according to the on-off signal R, and the main controller (10) obtains the current I of the battery main body (1) through a battery current collecting point (17)DAnd the voltage U of the battery body (1)DAnd passing a current IDSum voltage UDThe health degree of the battery main body (1) is obtained through calculation for data acquisition, the main controller (10) measures the battery temperature T through the battery temperature sensor (7) and obtains the health degree of the semiconductor refrigerating sheet for reference investigation by combining the current value of the single semiconductor refrigerating sheet (5), and the main controller (10) measures the flow temperature T through the temperature sensor inside the liquid cooling opening regulating valveLAnd the health degree of the heat dissipation grid (6) is obtained by combining the battery temperature T for reference and examination.
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Citations (3)
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|---|---|---|---|---|
| US20170256830A1 (en) * | 2016-03-07 | 2017-09-07 | Contemporary Amperex Technology Co., Limited | Thermal management system of battery pack |
| CN108470959A (en) * | 2018-03-28 | 2018-08-31 | 精进电动科技股份有限公司 | A kind of power battery pack heat management assembly |
| CN110085936A (en) * | 2019-06-05 | 2019-08-02 | 安普瑞斯（无锡）有限公司 | A kind of fast charge method |
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2020
- 2020-10-16 CN CN202011109020.4A patent/CN112186311A/en active Pending
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|---|---|---|---|---|
| US20170256830A1 (en) * | 2016-03-07 | 2017-09-07 | Contemporary Amperex Technology Co., Limited | Thermal management system of battery pack |
| CN108470959A (en) * | 2018-03-28 | 2018-08-31 | 精进电动科技股份有限公司 | A kind of power battery pack heat management assembly |
| CN110085936A (en) * | 2019-06-05 | 2019-08-02 | 安普瑞斯（无锡）有限公司 | A kind of fast charge method |
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