LU500023B1 - Liquid-cooled double-cycle heat management box for power lithium battery pack - Google Patents
Liquid-cooled double-cycle heat management box for power lithium battery pack Download PDFInfo
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- LU500023B1 LU500023B1 LU500023A LU500023A LU500023B1 LU 500023 B1 LU500023 B1 LU 500023B1 LU 500023 A LU500023 A LU 500023A LU 500023 A LU500023 A LU 500023A LU 500023 B1 LU500023 B1 LU 500023B1
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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
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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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
- H01M10/656—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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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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- 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 a liquid-cooled double-cycle heat management box for power lithium battery pack, which comprises small circulating water tank, large circulating water tank, water inlet three-way valve, water outlet three-way valve, temperature sensor, right semiconductor TEC component, left semiconductor TEC component, water pump and main control board. When the ambient temperature is too low or too high, the outlet three-way valve and the inlet three-way valve are all opened, and the coolant enters the water pump through the small circulation outlet pipe and the large circulation outlet pipe, and the cooling liquid is circulated in the lithium battery pack by water pump and then enters into small circulating water tank and large circulating water tank through small circulating water inlet pipe and large circulating water inlet pipe respectively, and then the same circulating process is repeated to cool or heat the lithium battery pack.
Description
DESCRIPTION Liguid-cocled double-cycle heat management box for power Hhium battery pack
TECHNICAL FIELD The invention belongs to the field of thermal management of Hthium battery packs of electric vehicles, and particularly relates to a liguid cooling double-loop liquid cooling and heating management box for power lithium batlery packs.
BACKGROUND Lithium batisres are widely used in electric vehicles, asrospace, industry and other fields, due to iis advantages of no memory effect low self-discharge, high specific energy and good cycle performance. Lithium batiery pack is the only power source of pure electric vehicle. The performance of lithium battery pack directly affects the overall performance of pure electric vehicle, Lithium battery is relatively sensitive 10 temperature, its performance will be greatly weakenad by high temperature, low temperature and poor uniformity of temperatura. In order to meet the power demand of siectric vehicles, large capacity lithium batleries must be used, so higher requirements are put forward for the thermal management system of lithium batieries, The best working temperature of lithium battery is 15°C-40°C. in the process of battery charging and discharging, too high temperature not only affects the battery performance, but also has great potential safety hazards. Common cooling methods include structural improvement, forced air cooling, liquid cooling and phase change material cooling. Forced air cooling can be divided into serial ventilation and parallel ventilation, and Hauid cooling can be divided into direct contact cooling and non-contact cooling, Phase change material is a kind of heat absorption or heat storage substance, which needs to be used in combination with other Cooling systems. When the operating environment femperaiure of lithium battery packis toc low, His necessary to heat the lithium battery pack. Common hesting methods include resistance heating and semiconductor healing. Under normal working conditions, in order io reduce the cost, the lithium battery power sysiem can work normally by adopting environmental cooling. The existing thermal management system of lithium battery pack has Some Shortcomings, such as complex structure, high manufacturing and processing cost, high power consumplion, unsatisfactory thermal management effect and so on, invention 200310100206.3 discioses a fuel cell thermal management system with two-way circulation control, which comprises a cooling liquid outflow pipeline connected with the fuel cell, a cooling liquid inflow pipeline, a radiator and a water pump, wherein a thermostat is arranged on the cooling liquid outfiow pipeline, so that ihe thermal management sysiem is a double-cycle thermal management system, The high-temperature outlet of the thermostat is connected with the indel of the radiator through a pipeline, and the low-lemperature outlet of the thermostat is directly connected with the cooling liquid inflow pipeline through a pipeline. The water pump is arranged on the cooling liquid inflow pipeline or the cooling liquid outflow pipeline, According to the invention, the traditional single-channel cooling circulation system of the vehicle fuel cell is improved into a double-channel cooling circulation system by using a thermosial, so that over-Cocting and overheating of the vehicle fuel cell are effectively avoided, the working temperature is kept at 20°C-807C, and the efficient operation of the fuel cell is ensured. However, for the power Ithium battery with high temperature sensitivity, there is no double cycle at the same tims, which can not overcome the above-mentioned defects in the thermal cycle of power lithium battery.
SUMMARY in order to solve the problems desorbed above, this invention provides a Hguid- cooled double-cycle heal management box for power lithium battery pack, which comprises small circulating water tank, large circulating water lank, water inlet three-way valve, water outlet three-way valve, temperature sensor, right semiconductor TEC component, left semiconductor TEC component, water pump and main control board.
The described small croulating water tank is internally provided with a quadrangular heat conduction column, the upper cover is provided with à small circulating water inlet, the lower part of the front side is provided with a small circulating water outlet, and the middle part of the front side is provided with à temperature sensor.
The described right semiconductor TEC component and the left semiconductor TED component are respectively arrange on two sides of the small crculale water tank.
The described upper part of the large ciroulating water tank is provided with large circulating water iniet, and the lower part of the front side is provided with large circulating water outlet.
The described water pump is arranged in the low recess part of large circulation, and the water outlet three-way valve and the water iniet three-way vaive are respectively connected with the water pump, the small circulation water outlet pipe and the large circulation water outlet pipe through three water pipe joints.
The described main control board is installed on the large circulating water tank, and the upper part of the main control board is provided with a communication interface, The described external water pipe and the outlet of the water pump are respectively connected with the liquid cooling pipe of the lithium battery pack.
The upper cover of small ciroulating water tank is arranged on the upper pari of the small circulating water tank.
Freferably, the shape and size of the described liquid cooling tube are determined according to the actual situation of the lithium battery pack.
Freferably, the quadranguiar heat conduction column has three layers and six rows.
Preferably, in every two layers of the quadranquiar heat conduction column are arranged in different surface with parallel and staggered manner, This invention relates to the control of liquid-cooled double-cycle heat management box for power lithium battery pack, which comprises the following steps: {1} Before the thermal management system works, filling the small ciroulating waier tank and the large drculaling water tank with cooling liquid through the small circulating water inlet and the large crculaling water inlet, and use 50% distilled water and 50% alcohol to prepare the cooling liquid, so that the water pump is filled with cooling iquid, and the corresponding cooling liquid flows into the liquid cooling pipe installed in the hihium battery pack.
(2) Connecting the power supply and turning the switch on the main control hoard to make the thermal management system work.
(3) When the ambient temperature is between 15C and 307, the temperature sensor recognizes the ambient temperature and transmits a signal to the main control board. Al this time, the water outlet three-way valve closes the small ciroulation outlet pipe and opens the large ciroulation outlet pipe, while the water inde! three-way valve closes the small circulation inlet pipe and opens the large circulation inlet pipe. At the same time, the main control board controls the right semiconductor TEC component and the left semiconductor TEC component Io stop working, and the cooling liquid enters the water pump through the large circulating water outlet pipe, and the cooling liquid is circulaied in the lithium battery pack by the water pump and then enters the large circulating water tank through the large circulgting water inlet, and then the same circulating process is repeated to achieve the effect of refrigerating the lithium battery pack.
{4} When the temperature is lower than 15°C, the temperature sensor recognizes the ambient temperature and transmits a signal fo the main control board. The right semiconductor TEC component and the left semiconducior TEC component are in heating working state at the same time, and the heat transfer effec is increased through the quadrangular heat conduction column.
(5) When the temperature is higher than 30°C, the temperature sensor recognizes the ambient temperature and transmits a signal to the main control board. The right semiconductor TEC component and the left semiconductor TEC component are in a refrigeration working state at the same time, and the refrigeration effect is increased by the quadrangular heat conduction column.
(©) Under the wo environmental temperatures mentioned in the above steps (4) and (5), the water outlet three-way valve and the water inlet three-way valve are opened, and the coolant enters the water pump through the small circulating water outlet pipe and the large circulating water outlet pipe, and then the coclant is circulated in the lithium battery pack by the water pump and enters the small circulating water tank and the large circulating water tank respectively through the small circulating water inist pipe, and then the same sample crediation process is repeated Lo cool or heat the lithium batiery pack.
When thermal management is not needed, the power supply is cut off through the main control board. if the thermal management system is not used for a long time, the coolant can be discharged through the small circulation drain and the large circulation drain.
The technical scheme of the invention has at east the following advantages and beneficial effects:
1. According to Hquid-cocled double-cycie heat management box for power lithium battery pack provided by the invention, a double-cycie quid cooling sysiem Is adopted, and when the ambient temperature is between 150 and 30°C, the small ciroulating water tank does not work, only the large circulating water tank works, and when the temperature is lower than 15°C or higher than 30°C, the small circulating water tank stars to work.
2. The right semiconductor TEC component and the left semiconductor TEC component can realize refrigeration and heating al the same time by using Peitier effect, and the designed quadrangular heat conduction column effectively improves the heat transfer and cooling efficiency.
3. The device effeclively reduces unnecessary energy loss, greatly improves the working efficiency of the thermal management box, and has the advaniages of simple structure, convenient operation and the like, 4, Lithium battery is sensitive to high temperature, and IS best working range is 20- ACC. The biggest advantage of heating it with double circulating rings of large and small waier tanks is hat it can save energy to a great extent, and can make the appropriate environmental temperature play a full role, so as to achieve the effect of adiusting the internal temperature of power Hikium battery pack. The quadrangular heat conduction column is installed in the small ciroulation box, which is in direct contact with the semiconductor TEC component. When the water tank is filled with water, the quadrangular heat conduction column is in direct contact with the cooling water, which effectively increases the heat transfer area, and effectively improves the heat transfer effect regardiess of whether the semiconductor TEC component is in a cooling or heating state.
5. The circulation of large and small water tanks makes full use of the adjusiment function of environmental temperature, and using the natural cooling of the environment in addition to the forced cooling of semiconductor TEC components, which effectively reduces the requirement on the input power of semiconductor TED Components and plays a role in saving energy t0 a great extent. At the same time, the simultansous action of large and smail cycles also increases the refrigeration effect
8. The utilization rate of horizontal space is increased, which will not cause space waste, Water is self-absorbed by gravity, The arrangement of each component saves space and effectively reduces the overall surface area.
7, Semiconductor TEC components are arranged on both sides to greatly increase the heat transfer effect, and the structure of the quadrangular heat conduction column is simpler, which effectively increases the contact ares wilh the contact liquid compared with the cylindrical shape, and reduces the processing difficulty compared with the polygonal shape,
8. The ihree-layer staggered arrangement of the quadrangular hest-conducting columns reduces the flow resistance of the cooling liquid, has sironger fluidity, exchanges more with the quadrangular heat-conducting columns, and improves the heat transfer efficiency. The staggered arrangement of the quadrangular heai-conducting columns enables the cooling liquid to be heated and cooled more fully and hested in a gradient manner, thus improving the uniformity of heat transfer.
BRIEF DESCRIPTION OF THE FIGURES in order to explain the technical scheme of the embodiments of the presentinvention more clearly, the following drawings are briefly introduced. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope of the present invention. For those skilled in the art other drawings can be obtained according 10 these drawings Without paying creative labor.
Fig. 1 is a schematic diagram of the right isometric structure with a cover of the present invention, Fig, 2 is a schematic diggram of the uncovered left isometric structure of the present invention, Wherein, 1 small circulating water inlet, 2 upper cover of small circulating water tank, 3 right semiconductor TEC component, 4 temperature sensor, & small circulation drain, 8 small circulating water Outlet pipe, / water pump, 8 water inlet three-way Valve, 9 large circulation outlet pipe, 10 large circulation drain, 11 main control board, 12 quadrangular heat conduction column, 13 small droulaling water tank, 14 communication interface, 15 water inlet thres-way valve, 16 large circulation inlet pipe, 17 large circulation water tank, 18 large circulation inlet, 19 external water pipe, 20 small ciroulation water inlet pipe, 21 left semiconductor TEC component
DESCRIPTION OF THE INVENTION The present invention will be explained with reference to the drawings and specific embodiments. in order io make the objectives, technical solutions and advantages of the embodiments of the present invention dearer, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the altached drawings.
Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Therefore, the following detailed description of embodiments of the present invention is not intended to limit the scope of the claimed invention, but only represents some embodiments of the present invention, Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative labor belong to the scope of protection of the present invention, it should be noted that similar reference numerals and letlers indicate similar tems in the following figures, so once an item is defined in ons figure, it is not necessary 10 further define and explain it in the following figures.
in the description of the present invention, i should be noted that the ornentations or positional relationships indicated by the terms "canter, “upper”, ower”, afl”, right”, “vertical”, horizontal”, "inner", "outer" and "back" are based on the orientations or positional relationships shown in the drawings, or are the orientations commonly placed when the product of the present invention is used Such terms are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation,
be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention.
It should also be noted that in the description of the present invention, unless otherwise specified and limited, the terms "setting", "installing", "connecting" and "connecting" should be understood in a broad sense, for example, it can be fixed connection, detachable connection or integrated connection; It can be connected mechanically or electrically. It can be directly connected, indirectly connected through an intermediate medium, or communicated inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
Referring to Figure 1 to 2, this invention provides liquid-cooled double-cycle heat management box for power lithium battery pack comprises of 13 small circulating water tank, 17 large circulation water tank, 15 water inlet thres-way valve, 8 water inlet three- way valve, 3 right semiconductor TEC component, 4 temperature sensor, 21 left semiconductor TEC component, 7 water pump, 11 main control board.
The described 13 small circulating water lank comprised of 12 quadrangular heat conduction column and 1 small arculating waler inet installed on the upper cover, 5 small ciroulation drain is installed on the bottom of the front side, 4 temperalure sensor is installed in the middie of front side.
The described 3 right semiconductor TEC component and 21 left semiconductor TEC component are respectively installed on the both sides of 13 small circulating water tank.
The described 17 large circulation water tank has 18 large circulation inlet pipe installed on top, and 10 large circulation drain is installed at the bottom of the front side.
The 7 water pump is placed in the big Circulation recess, the 5 outlel three-way valve and 15 the inlet three-way valve, wherein 8 water inlet three-way valve is respectively connected with 7 the water pump, 6 small circulating water outlet pipe and 9 the big circulation outlet pipe through three water pipe joints, and the 15 inlet three-way valve is respectively connected with 19 external water pipe, 20 small circulation water inlet pipe and 17 large circulation water tank through three water pipe joints.
The main control board 11 is installed on a large circulating water tank 17, and the upper part of the main control board 11 is provided with à communication interface 14.
The external water pipe 19 and the water cutie! of the water pump 7 are respectively connected with the liquid cooling pipe of the lithium battery pack The upper cover 2 of the small circulating water tank is placed on the upper part of the small circulating water lank 13.
Preferably, the shape and size of the liquid cooling tube are determined according to the actual situation of the lithium battery pack.
Preferably, the quadrangular heat conduction columns 12 have three layers and six POS.
Preferably, every two layers of the quadrangular heat-conducting columns 12 are arranged in an out-of-plare parallel staggersd manner.
The Invention relaiss to a control method of a liquid-cooled double-cycie heat management box of a power lithium battery pack. Before the thermal management system is operated, a small circulating water tank 13 and a large circulating water tank 17 are filed wilh cooling liquid through a small circulating water iniet 1 and a large circulating water inlet 18, and the cooling liquid is configured by 50% distilled water and 50% alcohol, so that a water pump 7 is filled with Cooling liquid, and a liquid cooling pipe installed in the lithium battery pack also flows with corresponding cooling Higuid, Connect the power supply and start the switch on the main control board 11 to make the thermal management system work; This is divided into the following situations: (1) when the ambient temperature is between 15°C and 30°C, the temperature sensor 4 recognizes the ambient temperature and transmits a signal to the main control board 11. At this ime, the water inlet three-way valve 8 closes the small circulation outiet pipe © and opens the large circulation outlet pipe ©, and the water inlet three-way valve closes the small circulation water inlet pipe 20 and opens the large circulation inlet pipe 18. At the same time, the main control board 11 controls the right semiconductor TEC assembly 3 and the left semiconductor TEC assembly 21 to stop working. The coolant enter that water pump 7 through the large circulation water outlet pipe 9, and the coolant is circulated in the lithium battery pack by the water pump 7 and then enters the large ciroulation wat tank 17 through the large arculation water inlet 15, and then the same circulation process is repealed io achieve the effect of refrigerating the lithium battery pack.
{2} When the temperature is lower than 15°C, the temperature sensor 4 recognizes the ambient temperaiure and transmits a signal to the main control board 11. The right semiconductor TEC assembly 3 and the left semiconductor TEC assembly 21 are in a heating working state at the same time, and the heat transfer effect is increased by the guadrangular heat conduction column 12.
{3} When the temperature is higher than 30°C, the temperature sensor 4 recognizes the ambient temperature and transmits a signal to the main control board 11. The right semi-conductor TEC assembly 3 and the left semi-conductor TEC assembly 21 are in a refrigeration working state af the same ime, and the refrigeration effect is increased by the guadrangular heat conduction column 12.
Under two environmental temperatures (2) and (2), the outlet three-way valve 8 and the water inlet three-way valve 15 are all opened, and the coolant enters the water pump 7 through the small arculating water Outlet pipe 8 and the large carculating water outlet pipe 9. The coolant is circulated in the lithium battery pack by the water pump 7 and then enters the small croulating water tank 13 and the large circulating water tank 17 respectively through the small circulating water iniel pipe 20 and the large circulating water iniet pipe 16, and then the same circulation process is repeated to achieve the effect of cooling or heating the lithium battery pack.
When thermal management is not neaded, the power supply is cut off through the main control board 11. if the thermal management system is not used for a long time, the coolant can be discharged through the small circulation drain 5 and the large circulation drain 10.
The above embodiments are only used to dlustrate, but not limit, the technical scheme of the present invention, and any modification or partial replacement without departing from the spirit of the present invention shall be covered in the scope of claims of the present invention
Claims (5)
1. Liguid-cocled double-cycis heal management box for power lithium batiery pack is characterized in comprising small circulating water tank, large circulating water tartk, water inlet three-way valve, water outlet three-way valve, temperature sensor, right semiconductor TEC component, left semiconductor TEC component, water pump and main control board: the described small circulating water tank is internally provided with a quadrangular heat conduction column, the upper cover is provided with small circulating water inlet, the lower part of the front side is provided with a small circulating water outlet, and the riddle part of the front side is provided with a temperature sensor, the described right semiconductor TEC component and the left semiconductor TEC component are respectively arrange on two sides of the small circulale water tank; the upper part of the large ciroulating water tank is provided with large circulating waier iniet, and the lower part of the front side is provided with large ciroulaiing water Outlet; the water pump is arranged in the low recess of the large circulation, the water outlet three-way valve and the water inlel thres-way valve, wherein the water outiet three-way valve is respectively connected wilh the water pump, the small circulation water outlet pipe and the large circulation water ouliet pipe through three water pipe joints, The water inlet three-way valve is respeclively connected with an external water pipe, a small circulation water inlet pipe and a large circulation water ined pipe through tres waler pipe joints, the main control board is installed on the large circulating water tank, and the upper part of the mam controi board is provided with a communication interface: the external water pipe and the outlet of the water pump are respectively connected with the liquid cooling pipe of the lithium battery pack the upper cover of small circulating water tank is arranged on the upper part of the small circulating water tarte
2. According to claim 1, liquid-cooled double-cycle heat management box for power ithium battery pack is characterized in thal the shape and size of the described liquid cooling tube are determined according to the actual situation of the lithium battery pack.
3, According to claim 1, liquid-cooled double-cycle heat management box for power ithium battery pack is characterized in the quadranguiar heat conduction column has three layers and six rows.
4. According to claim 3, liquid-cocled double-cycle haat management box for power ith battery pack is characterized in every two layers of the quadrangular heat conduction column are arranged in different surface with parallel and siaggered manner.
5, According to any claim from claim 1-4, liquid-cooled double-cycle heat management box for power lithium battery pack is characterized in comprising the siens described below: (1) before the thermal management system works, filling the small croulating water tank and the large circulating water tank wilh cooling liquid through the small circulating water inlet and ihe large dreulating water intet, and use 50% distilied water and 50% alcohol to prepare the cooling liquid, so that the water pump is filled with cooling iquid, and the corresponding cooling liquid flows into the liquid cooling pipe installed in the lithium battery pack; (2) connecting the power supply and turning the switch on the main control board to make the thermal management system work (33 when the ambient temperature is between 18°C and 30°C, the temperature sensor recognizes the ambient temperature and transmits a signal to the main control board; at this time, the water outlet three-way valve closes the small circulation outlet pipe and opens the large crouigtion outlet pipe, while the water inlet three-way valve closes the small circulation inlet pipe and opens the large circulation inlet pipe, at the same time, the main control board controls the right semiconductor TEC component and the left semiconductor TEC component to stop working, and the cooling liguid enters the water pump through the large circulating water outlet pipe, and the cocling liquid is circulated in the Ithium battery pack by the water pump and then enters the large circulating water tank through the large circulating water inlet, and then the same circulating process is repeated © achieve the effect of refrigerating the lithium battery nack; (4) when the temperature is lower than 15°C, the temperature Sensor recognizes the ambient temperature and transmits a signal to the main controi board, the right semiconductor TEC component and the left semiconductor TEC component are in heating working state ai the same time, and the heat transfer effect is increased through the quadrangular heat conduction column,
(5) when he temperature is higher than 30°C, the temperature sensor recognizes the ambient temperature and transmits a signal to the main control board, the right semiconductor TEC component and the left semiconductor TEC component are in a refrigeration working state at the same time, and the refrigeration effect is increased by the quadrangular heat conduction column,
(6) under the two environmental temperatures mentioned in the above steps (4) and {5), the water outlet three-way valve and the water inlet three-way valve ars opened, and the coolant enters the water pump through the small circulating water outlet pips and the large circulating water outlet pipe, and then the coolant is circulated in the lithium battery pack by the water pump and enters the small circulating water tank and the large circulating water tank respectively through the small circulating water inlet pipe and the large circulating water outlet pipe, and then the same sample circulation process is repeated to cool or heat the lithium battery pack
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU500023A LU500023B1 (en) | 2021-04-09 | 2021-04-09 | Liquid-cooled double-cycle heat management box for power lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU500023A LU500023B1 (en) | 2021-04-09 | 2021-04-09 | Liquid-cooled double-cycle heat management box for power lithium battery pack |
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| Publication Number | Publication Date |
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| LU500023B1 true LU500023B1 (en) | 2021-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU500023A LU500023B1 (en) | 2021-04-09 | 2021-04-09 | Liquid-cooled double-cycle heat management box for power lithium battery pack |
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| Country | Link |
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| LU (1) | LU500023B1 (en) |
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2021
- 2021-04-09 LU LU500023A patent/LU500023B1/en active IP Right Grant
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| FG | Patent granted |
Effective date: 20211011 |