CN112421148A - Intelligent power battery thermal management system - Google Patents
Intelligent power battery thermal management system Download PDFInfo
- Publication number
- CN112421148A CN112421148A CN202011419826.3A CN202011419826A CN112421148A CN 112421148 A CN112421148 A CN 112421148A CN 202011419826 A CN202011419826 A CN 202011419826A CN 112421148 A CN112421148 A CN 112421148A
- Authority
- CN
- China
- Prior art keywords
- battery
- pump
- liquid
- gear
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- H01M10/63—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
- H01M10/6556—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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides an intelligent power battery thermal management system, wherein a power battery comprises a battery module; the battery module comprises a liquid cooling system; the liquid cooling system comprises a liquid pump, a liquid storage tank, a spray nozzle and a heat dissipation channel, wherein the liquid storage tank is positioned below the battery module and stores cooling liquid, and the spray nozzle is positioned above the battery module; a cooling liquid output pipeline is arranged at the output end of the liquid storage tank, and the input end of the liquid storage tank is communicated with the heat dissipation channel; the cooling liquid output pipeline is communicated with the spray nozzle through a liquid pump; the part of the cooling liquid output pipeline, which is contacted with the power battery shell, forms a heat insulation cooling layer at the outer wall of the battery module; the fog-spraying port is positioned at the starting end of a heat dissipation channel at the upper part of the battery module, and fog-shaped cooling liquid sprayed into the heat dissipation channel is attached to the surface of the heat dissipation channel so as to absorb the heat of the battery module and flow back to the liquid storage tank; the invention can strengthen the internal heat dissipation of the power battery by atomized cooling liquid, and can form a cooling layer on the surface of the power battery shell by a cooling liquid pipe network.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to an intelligent power battery thermal management system.
Background
In the field of thermal management of power batteries, part of scholars apply a spraying technology to thermal management of batteries, the spraying technology is to atomize liquid, so that the contact area of cooling liquid and the batteries is enlarged, the cooling liquid is easier to absorb heat and evaporate, compared with single-phase forced convection, evaporation relates to a phase change process from liquid to gas, and the heat transfer performance higher than that of the single-phase forced convection process is provided.
According to the simulation in 2017, Saw L H and the like, when water mist with the speed of 2 m/s and the flow rate of 0.37 g/s is added into cooling air, the temperature of the surface of the battery is sufficiently reduced to be below 40 ℃; experiments and numerical simulations in 2018 indicated that a mass flow rate of 5 g/s for fog cooling and a fog load fraction of 3% were sufficient to ensure that the surface temperature of the battery module remained below 40 ℃. In the field of thermal runaway, Liu T and the like are used in 2019, and experimental research shows that the thermal runaway critical temperature with fine water mist is at least 20 ℃ lower than that without the fine water mist; through experimental research in 2020, the water mist has good cooling capacity, and can well prevent thermal runaway from spreading in the battery module when the water consumption is 1.95 ⨯ 10-4 kg/W.h.
Disclosure of Invention
The invention provides an intelligent power battery heat management system which can strengthen internal heat dissipation of a power battery by atomized cooling liquid and can form a cooling layer on the surface of a power battery shell by a cooling liquid pipe network.
The invention adopts the following technical scheme.
An intelligent power battery thermal management system, the power battery comprising a battery module; the battery module comprises a liquid cooling system; the liquid cooling system comprises a liquid pump, a liquid storage tank, a spray nozzle and a heat dissipation channel, wherein the liquid storage tank is positioned below the battery module and stores cooling liquid, and the spray nozzle is positioned above the battery module; a cooling liquid output pipeline is arranged at the output end of the liquid storage tank, and the input end of the liquid storage tank is communicated with the heat dissipation channel; the cooling liquid output pipeline is communicated with the spray nozzle through a liquid pump; the part of the cooling liquid output pipeline, which is contacted with the power battery shell, forms a heat insulation cooling layer at the outer wall of the battery module; the fog-spraying opening is positioned at the starting end of the heat dissipation channel at the upper part of the battery module, and the fog-like cooling liquid sprayed into the heat dissipation channel is attached to the surface of the heat dissipation channel so as to absorb the heat of the battery module and flow back to the liquid storage tank.
The liquid cooling system also comprises a control module, and a battery current monitoring module and a battery temperature monitoring module which are connected with the control module; the battery current monitoring module monitors the battery current; the battery temperature monitoring module monitors the battery temperature; and the control module controls the working condition of the liquid pump according to the current of the battery and the temperature of the battery so as to control the spray nozzle to spray cooling liquid to the heat dissipation channel.
The wall surface of the cooling liquid output pipeline is in a circular arc shape which can be tightly attached to the power battery shell to enlarge the heat dissipation area at the part of the cooling liquid output pipeline contacted with the power battery shell.
The top of the cooling liquid output channel is positioned at the upper part of the battery module and is provided with a plurality of wall surfaces, the spray outlets are respectively arranged at the top surface of the cooling liquid output channel or each side wall surface of the top of the cooling liquid output channel, and the spray outlets enable the cooling liquid to be sprayed to the heat dissipation channel in a micro-droplet form.
The input end of the liquid storage tank is communicated with the heat dissipation channel through a battery support plate at the lower part of the battery module; the battery supporting plate forms a funnel-shaped confluence structure at the tail end of the heat dissipation channel, and the cooling liquid flowing out through the heat dissipation channel under the action of gravity converges at the funnel-shaped confluence structure and flows back to the liquid storage tank.
The bottom plate of the liquid storage tank is of a funnel-shaped structure; the output end of the liquid storage tank is arranged at the bottom plate of the funnel-shaped structure and is connected with the filter.
The cooling liquid is non-conductive liquid with insulativity; the cooling liquid comprises silicone oil or transformer oil.
And the liquid storage tank is provided with a heat dissipation structure for air cooling, liquid cooling or phase change cooling.
In the working condition of the liquid pump, the power output gears of the liquid pump comprise a pump 1 st gear, a pump 2 nd gear and a pump 3 rd gear, and the control module controls the working condition of the liquid pump by taking a threshold T1 of the environmental temperature as a reference, and the method comprises the following steps;
in the first method, when the temperature of the battery is lower than 35 ℃, the liquid pump is in a standby state;
when the battery temperature is higher than 35 ℃ and the environmental temperature is higher than T1, starting the 3 rd gear of the pump, judging whether the battery temperature is higher than 35 ℃ again, if so, continuing to start the 3 rd gear of the pump, otherwise, starting the 2 nd gear of the pump, judging whether the battery temperature is higher than 30 ℃, if so, continuing to start the 2 nd gear of the pump, otherwise, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, otherwise, closing the pump;
when the battery temperature is higher than 35 ℃ and the environmental temperature is lower than T1, judging whether the battery current is higher than or equal to 3C, if so, starting the 3 rd gear of the pump, judging whether the battery temperature is higher than 35 ℃ again, if so, continuing to start the 3 rd gear of the pump, otherwise, starting the 2 nd gear of the pump, judging whether the battery temperature is higher than 30 ℃, if not, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, otherwise, closing the pump;
when the battery temperature is higher than 35 ℃, the environmental temperature is lower than T1 and the battery current is lower than 3C, judging whether the environmental temperature is higher than T2, if so, starting the 2 nd gear of the pump, judging whether the battery temperature is higher than 30 ℃, if so, continuing to start the 2 nd gear of the pump, otherwise, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, otherwise, closing the pump;
and when the battery temperature is higher than 35 ℃, the ambient temperature is lower than T1, the battery current is lower than 3C and the ambient temperature is lower than T2, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, and if not, closing the pump.
The power battery is used for vehicles and can discharge at a large rate.
The invention can prevent the potential safety hazard of over-fast heating and rapid heat accumulation of the power battery during high-rate discharge such as climbing, overtaking, rapid acceleration and the like, can quickly and effectively control the temperature of the battery within a reasonable range, and simultaneously improves the performance and cycle life of the battery.
The invention uses less cooling liquid, so that the quality is low and the cost is low; the contact area of the cooling liquid and the battery is large, and the heat transfer efficiency is high.
The present invention is also advantageous in that 1, the battery temperature can be maintained within a proper range using only a small amount of coolant by spraying and contacting the coolant with the battery; 2. the contact between the pipeline and the battery can be combined, so that the temperature uniformity of the battery is better.
Compared with the traditional cold pipe type and cold plate type heat management, the scheme of the invention has the advantages of large contact area between the cooling liquid and the battery and high heat transfer efficiency; compared with contact type heat management in which the battery is partially or completely immersed, the technical scheme of the invention has the advantages of light weight and cooling liquid saving; compared with heat pipe type heat management, the technology has lower cost.
The invention can form a separation layer with cooling capacity at the battery shell by the cooling pipe network and the external environment, thereby not only strengthening the cooling capacity, but also ensuring that the internal temperature of the battery is not easily influenced by the environmental temperature.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic of the present invention;
FIG. 2 is a perspective view of the upper portion of the present invention;
FIG. 3 is a schematic diagram of the principles of the present invention;
FIG. 4 is a schematic flow diagram of a method for controlling the operating conditions of a liquid pump;
FIG. 5 is a schematic top view of the present invention;
in the figure: 1-a spray nozzle; 2-a power battery housing; 3-a battery support plate; 4-a liquid storage tank; 5-a filter; 6-liquid pump; 7-a power battery; 8-a battery temperature monitoring module; 9-a battery module; 10-a battery box; 11-coolant outlet line; 12 heat dissipation channels.
Detailed Description
As shown in the figure, the intelligent power battery thermal management system is characterized in that the power battery 7 comprises a battery module 9; the battery module comprises a liquid cooling system; the liquid cooling system comprises a liquid pump 6, a liquid storage tank 4 which is positioned below the battery module and stores cooling liquid, a spray nozzle 1 positioned above the battery module and a heat dissipation channel inside the battery module; a cooling liquid output pipeline 11 is arranged at the output end of the liquid storage tank, and the input end of the liquid storage tank is communicated with the heat dissipation channel; the cooling liquid output pipeline is communicated with the spray nozzle through a liquid pump; the part of the cooling liquid output pipeline, which is in contact with the power battery shell 2, forms a heat insulation cooling layer at the outer wall of the battery module; the spray opening is positioned at the starting end of a heat dissipation channel 12 at the upper part of the battery module, and the atomized cooling liquid sprayed into the heat dissipation channel is attached to the surface of the heat dissipation channel so as to absorb the heat of the battery module and flow back to the liquid storage tank.
The liquid cooling system also comprises a control module, and a battery current monitoring module and a battery temperature monitoring module 8 which are connected with the control module; the battery current monitoring module monitors the battery current; the battery temperature monitoring module monitors the battery temperature; and the control module controls the working condition of the liquid pump according to the current of the battery and the temperature of the battery so as to control the spray nozzle to spray cooling liquid to the heat dissipation channel.
The wall surface of the cooling liquid output pipeline is in a circular arc shape which can be tightly attached to the power battery shell to enlarge the heat dissipation area at the part of the cooling liquid output pipeline contacted with the power battery shell.
The top of the cooling liquid output channel is positioned at the upper part of the battery module and is provided with a plurality of wall surfaces, the spray outlets are respectively arranged at the top surface of the cooling liquid output channel or each side wall surface of the top of the cooling liquid output channel, and the spray outlets enable the cooling liquid to be sprayed to the heat dissipation channel in a micro-droplet form.
The input end of the liquid storage tank is communicated with the heat dissipation channel through a battery support plate 3 at the lower part of the battery module; the battery supporting plate forms a funnel-shaped confluence structure at the tail end of the heat dissipation channel, and the cooling liquid flowing out through the heat dissipation channel under the action of gravity converges at the funnel-shaped confluence structure and flows back to the liquid storage tank.
The bottom plate of the liquid storage tank is of a funnel-shaped structure; the output end of the liquid storage tank is arranged at the bottom plate of the funnel-shaped structure and is connected with the filter 5.
The cooling liquid is non-conductive liquid with insulativity; the cooling liquid comprises silicone oil or transformer oil.
And the liquid storage tank is provided with a heat dissipation structure for air cooling, liquid cooling or phase change cooling.
In the working condition of the liquid pump, the power output gears of the liquid pump comprise a pump 1 st gear, a pump 2 nd gear and a pump 3 rd gear, and the control module controls the working condition of the liquid pump by taking a threshold T1 of the environmental temperature as a reference, and the method comprises the following steps;
in the first method, when the temperature of the battery is lower than 35 ℃, the liquid pump is in a standby state;
when the battery temperature is higher than 35 ℃ and the environmental temperature is higher than T1, starting the 3 rd gear of the pump, judging whether the battery temperature is higher than 35 ℃ again, if so, continuing to start the 3 rd gear of the pump, otherwise, starting the 2 nd gear of the pump, judging whether the battery temperature is higher than 30 ℃, if so, continuing to start the 2 nd gear of the pump, otherwise, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, otherwise, closing the pump;
when the battery temperature is higher than 35 ℃ and the environmental temperature is lower than T1, judging whether the battery current is higher than or equal to 3C, if so, starting the 3 rd gear of the pump, judging whether the battery temperature is higher than 35 ℃ again, if so, continuing to start the 3 rd gear of the pump, otherwise, starting the 2 nd gear of the pump, judging whether the battery temperature is higher than 30 ℃, if not, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, otherwise, closing the pump;
when the battery temperature is higher than 35 ℃, the environmental temperature is lower than T1 and the battery current is lower than 3C, judging whether the environmental temperature is higher than T2, if so, starting the 2 nd gear of the pump, judging whether the battery temperature is higher than 30 ℃, if so, continuing to start the 2 nd gear of the pump, otherwise, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, otherwise, closing the pump;
and when the battery temperature is higher than 35 ℃, the ambient temperature is lower than T1, the battery current is lower than 3C and the ambient temperature is lower than T2, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, and if not, closing the pump.
The power battery is used for vehicles and can discharge at a large rate.
In this case, the coolant output duct may be arranged at the battery module in a ring-wound manner.
In this example, the power battery case 10 is a power battery case, and a plurality of cylindrical battery modules are disposed in the battery case, and a heat dissipation channel is formed by gaps between the battery modules.
Claims (10)
1. The utility model provides an intelligence power battery thermal management system which characterized in that: the power battery comprises a battery module; the battery module comprises a liquid cooling system; the liquid cooling system comprises a liquid pump, a liquid storage tank, a spray nozzle and a heat dissipation channel, wherein the liquid storage tank is positioned below the battery module and stores cooling liquid, and the spray nozzle is positioned above the battery module; a cooling liquid output pipeline is arranged at the output end of the liquid storage tank, and the input end of the liquid storage tank is communicated with the heat dissipation channel; the cooling liquid output pipeline is communicated with the spray nozzle through a liquid pump; the part of the cooling liquid output pipeline, which is contacted with the power battery shell, forms a heat insulation cooling layer at the outer wall of the battery module; the fog-spraying opening is positioned at the starting end of the heat dissipation channel at the upper part of the battery module, and the fog-like cooling liquid sprayed into the heat dissipation channel is attached to the surface of the heat dissipation channel so as to absorb the heat of the battery module and flow back to the liquid storage tank.
2. The intelligent power battery thermal management system of claim 1, wherein: the liquid cooling system also comprises a control module, and a battery current monitoring module and a battery temperature monitoring module which are connected with the control module; the battery current monitoring module monitors the battery current; the battery temperature monitoring module monitors the battery temperature; and the control module controls the working condition of the liquid pump according to the current of the battery and the temperature of the battery so as to control the spray nozzle to spray cooling liquid to the heat dissipation channel.
3. The intelligent power battery thermal management system of claim 1, wherein: the wall surface of the cooling liquid output pipeline is in a circular arc shape which can be tightly attached to the power battery shell to enlarge the heat dissipation area at the part of the cooling liquid output pipeline contacted with the power battery shell.
4. The intelligent power battery thermal management system of claim 1, wherein: the top of the cooling liquid output channel is positioned at the upper part of the battery module and is provided with a plurality of wall surfaces, the spray outlets are respectively arranged at the top surface of the cooling liquid output channel or each side wall surface of the top of the cooling liquid output channel, and the spray outlets enable the cooling liquid to be sprayed to the heat dissipation channel in a micro-droplet form.
5. The intelligent power battery thermal management system of claim 1, wherein: the input end of the liquid storage tank is communicated with the heat dissipation channel through a battery support plate at the lower part of the battery module; the battery supporting plate forms a funnel-shaped confluence structure at the tail end of the heat dissipation channel, and the cooling liquid flowing out through the heat dissipation channel under the action of gravity converges at the funnel-shaped confluence structure and flows back to the liquid storage tank.
6. The intelligent power battery thermal management system of claim 1, wherein: the bottom plate of the liquid storage tank is of a funnel-shaped structure; the output end of the liquid storage tank is arranged at the bottom plate of the funnel-shaped structure and is connected with the filter.
7. The intelligent power battery thermal management system of claim 1, wherein: the cooling liquid is non-conductive liquid with insulativity; the cooling liquid comprises silicone oil or transformer oil.
8. The intelligent power battery thermal management system of claim 2, wherein: and the liquid storage tank is provided with a heat dissipation structure for air cooling, liquid cooling or phase change cooling.
9. The intelligent power battery thermal management system of claim 8, wherein: in the working condition of the liquid pump, the power output gears of the liquid pump comprise a pump 1 st gear, a pump 2 nd gear and a pump 3 rd gear, and the control module controls the working condition of the liquid pump by taking a threshold T1 of the environmental temperature as a reference, and the method comprises the following steps;
in the first method, when the temperature of the battery is lower than 35 ℃, the liquid pump is in a standby state;
when the battery temperature is higher than 35 ℃ and the environmental temperature is higher than T1, starting the 3 rd gear of the pump, judging whether the battery temperature is higher than 35 ℃ again, if so, continuing to start the 3 rd gear of the pump, otherwise, starting the 2 nd gear of the pump, judging whether the battery temperature is higher than 30 ℃, if so, continuing to start the 2 nd gear of the pump, otherwise, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, otherwise, closing the pump;
when the battery temperature is higher than 35 ℃ and the environmental temperature is lower than T1, judging whether the battery current is higher than or equal to 3C, if so, starting the 3 rd gear of the pump, judging whether the battery temperature is higher than 35 ℃ again, if so, continuing to start the 3 rd gear of the pump, otherwise, starting the 2 nd gear of the pump, judging whether the battery temperature is higher than 30 ℃, if not, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, otherwise, closing the pump;
when the battery temperature is higher than 35 ℃, the environmental temperature is lower than T1 and the battery current is lower than 3C, judging whether the environmental temperature is higher than T2, if so, starting the 2 nd gear of the pump, judging whether the battery temperature is higher than 30 ℃, if so, continuing to start the 2 nd gear of the pump, otherwise, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, otherwise, closing the pump;
and when the battery temperature is higher than 35 ℃, the ambient temperature is lower than T1, the battery current is lower than 3C and the ambient temperature is lower than T2, starting the 1 st gear of the pump, judging whether the battery temperature is higher than 25 ℃, if so, continuing to start the 1 st gear of the pump, and if not, closing the pump.
10. The intelligent power battery thermal management system of claim 9, wherein: the power battery is used for vehicles and can discharge at a large rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419826.3A CN112421148A (en) | 2020-12-08 | 2020-12-08 | Intelligent power battery thermal management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419826.3A CN112421148A (en) | 2020-12-08 | 2020-12-08 | Intelligent power battery thermal management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112421148A true CN112421148A (en) | 2021-02-26 |
Family
ID=74775257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011419826.3A Pending CN112421148A (en) | 2020-12-08 | 2020-12-08 | Intelligent power battery thermal management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112421148A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241488A (en) * | 2021-05-06 | 2021-08-10 | 汉宇集团股份有限公司 | Cooling liquid pump assembly for power battery thermal management system and control method thereof |
| CN113422125A (en) * | 2021-06-22 | 2021-09-21 | 广州小鹏汽车科技有限公司 | Battery protection system and vehicle |
| CN113488717A (en) * | 2021-06-08 | 2021-10-08 | 同济大学 | Atomization cooling method and device for vehicle soft package lithium ion power battery |
-
2020
- 2020-12-08 CN CN202011419826.3A patent/CN112421148A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241488A (en) * | 2021-05-06 | 2021-08-10 | 汉宇集团股份有限公司 | Cooling liquid pump assembly for power battery thermal management system and control method thereof |
| CN113488717A (en) * | 2021-06-08 | 2021-10-08 | 同济大学 | Atomization cooling method and device for vehicle soft package lithium ion power battery |
| CN113422125A (en) * | 2021-06-22 | 2021-09-21 | 广州小鹏汽车科技有限公司 | Battery protection system and vehicle |
| CN113422125B (en) * | 2021-06-22 | 2022-10-14 | 广州小鹏汽车科技有限公司 | Battery protection system and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112421148A (en) | Intelligent power battery thermal management system | |
| CN107768773B (en) | Efficient thermal management system and control method for large power battery | |
| CN105977572B (en) | The working medium cooling system by contact and its working method of capacity cell | |
| CN203503756U (en) | Thermal management system of power battery based on flat plate loop heat pipes | |
| CN204424404U (en) | A kind of electric automobile water-cooled cells module and water-cooled cells case | |
| CN203351712U (en) | Power battery thermal management system based on sintering heat pipes | |
| CN110660944B (en) | Power battery pack heat dissipation device with heat pipe device and heat dissipation method thereof | |
| CN213878200U (en) | Intelligent power battery thermal management system | |
| CN203351711U (en) | Power battery thermal management system based on panel heat pipes | |
| CN104538699A (en) | Electric car water-cooling battery module and water-cooling battery box | |
| CN103367837A (en) | Power battery thermal management system based on flat loop heat pipes | |
| CN103367835A (en) | Power battery thermal management system based on loop heat pipes | |
| CN113594584A (en) | New energy automobile power battery package structure | |
| CN217334203U (en) | Liquid dripping contact type battery thermal management structure | |
| CN207217629U (en) | A kind of standard energy bag battery case | |
| CN109273794A (en) | A kind of automobile power cell Temperature-controlled appliance | |
| CN202141355U (en) | Circulating cooling device for industrial discharge water | |
| CN103367836A (en) | Power battery thermal management system based on sintered heat pipes | |
| CN113471576A (en) | Oil-cooled battery thermal management system and control method | |
| CN203339278U (en) | Power battery thermal management system based on loop heat pipes | |
| CN208352484U (en) | Intelligent lithium battery group | |
| CN217239576U (en) | Soaking type liquid stabilizing device for energy storage battery cooling system | |
| CN207196772U (en) | A kind of cold accumulation system with water distribution module | |
| CN207948001U (en) | A kind of mining area low temperature water radiator | |
| CN214672846U (en) | Device for delaying and controlling thermal runaway of power battery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |