CN111076591A - Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack - Google Patents

Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack Download PDF

Info

Publication number
CN111076591A
CN111076591A CN201911357855.9A CN201911357855A CN111076591A CN 111076591 A CN111076591 A CN 111076591A CN 201911357855 A CN201911357855 A CN 201911357855A CN 111076591 A CN111076591 A CN 111076591A
Authority
CN
China
Prior art keywords
shell
cooling
heat pipe
super
battery
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
Application number
CN201911357855.9A
Other languages
Chinese (zh)
Inventor
李洋
李羽白
白敏丽
吕继组
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian University of Technology
Original Assignee
Dalian University of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dalian University of Technology filed Critical Dalian University of Technology
Priority to CN201911357855.9A priority Critical patent/CN111076591A/en
Publication of CN111076591A publication Critical patent/CN111076591A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
    • F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
    • 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
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of 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
    • H01M10/62—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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00—Coatings; Surface treatments
    • F28F2245/02—Coatings; Surface treatments hydrophilic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00—Coatings; Surface treatments
    • F28F2245/04—Coatings; Surface treatments hydrophobic
    • 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 belongs to the technical field of power batteries, and provides a flat heat pipe with multiple evaporation surfaces sharing a condensation cavity for cooling a battery stack. The heat generated by the battery in the working process is taken away by vaporization of the working medium on the evaporation surface, the vaporized working medium is condensed in the condensation cavity, and the heat emitted by condensation is directly taken away by the cooling working medium in the serpentine pipeline, so that the highest temperature of the battery pack and the temperature difference between the battery monomers are effectively controlled. Compare in cooling methods such as traditional forced air cooling, liquid cooling, have following advantage: the phase change of the working medium is utilized to take away the heat generated in the working process of the battery pack, and the heat dissipation efficiency is high; cooling is carried out inside the heat pipe through a serpentine pipeline, so that a heat sink structure is omitted; the phase change points of the working medium in each communicated evaporation cavity are the same, so that the temperature consistency among each battery monomer can be effectively controlled; and multiple evaporation surfaces share one condensation cavity, so that the structure is more compact, and the total volume of the battery pack cooling device is reduced.

Description

Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack
Technical Field
The invention belongs to the technical field of power batteries, and particularly relates to a flat heat pipe with multiple evaporation surfaces sharing a condensation cavity for cooling a battery stack
Background
Nowadays, new energy automobiles are increasingly the focus of attention, but the development of the new energy automobiles is restricted by the technical level of power batteries. The power battery includes many types, and among them, the lithium ion battery has been widely accepted by society due to its advantages of high energy density, long cycle life, no memory effect, high cell voltage, etc. However, the service life and the working performance of the lithium ion battery are closely related to the temperature, the optimal working temperature range is 15-40 ℃, and when the working temperature of the lithium ion battery exceeds 40 ℃, the cycle life of the lithium ion battery is shortened by two months when the temperature rises by 1 ℃. Meanwhile, in order to fully exert the working performance of each battery unit in the system, the temperature difference of each battery unit is less than 5 ℃. In addition, when the temperature exceeds the upper limit that the lithium ion battery can bear, the internal materials of the lithium ion battery can generate complex chemical reaction due to the overhigh temperature, and generate a large amount of heat, so that the lithium ion battery is promoted to enter a thermal runaway state, dangerous accidents such as fire and explosion are caused, and the life safety of passengers is seriously threatened.
The heat dissipation methods of the power battery are mainly three, namely air cooling type, liquid cooling type and heat dissipation by using phase change materials. In the patent of lithium ion battery thermal management system (patent number: CN201610114215.5) of overseas people and the like, air cooling is utilized to dissipate heat of a battery pack, but for low-temperature-difference heat dissipation of a power battery pack, the convection heat transfer coefficient of air is limited, so that the air-cooled heat dissipation effect is not obvious; in a patent of 'a novel heat management system for vehicle-mounted lithium ion batteries' (patent number: CN201810584328.0), Li wen et al adopt a liquid cooling mode to dissipate heat of a battery pack, and because the heat conductivity coefficient of liquid is greater than that of air, the temperature of a vehicle-mounted power battery can be effectively reduced, but the problem of temperature difference between battery cells is difficult to solve; in the patent of 'a high-power lithium ion battery thermal management system' (patent number: CN201820855714.4), Dynees uses a phase-change material as a cooling working medium, and absorbs heat generated during the operation of a power battery by utilizing the phase-change of latent heat of the phase-change material when the latent heat reaches a phase-change temperature point. At present, paraffin is a main phase-change material, but the thermal conductivity of paraffin is too low, so that the paraffin cannot absorb heat in time when the power battery is discharged at a high rate and generates a large amount of heat.
The flat heat pipe has the advantages of extremely high heat conductivity, excellent isothermal property, larger heat transfer area and the like, so that the requirements of power battery equipment on compactness, high heat dissipation efficiency and the like of a heat dissipation device can be met. Therefore, the invention combines the heat exchange concept of the flat heat pipe with the actual structure of the power battery pack, and provides the flat heat pipe with multiple evaporation surfaces sharing a condensation cavity for cooling a battery stack
Disclosure of Invention
The invention aims to provide a flat heat pipe with multiple evaporation surfaces sharing a condensation cavity for cooling a battery stack, which realizes the control of the highest temperature of a battery pack and the temperature difference between single batteries and simultaneously makes the whole structure more compact.
The technical scheme of the invention is as follows:
a flat heat pipe with multiple evaporation surfaces sharing a condensation chamber for cooling a battery stack comprises a shell 1, a serpentine pipeline 2, a liquid charging pipe 5 and a liquid absorption core 6, wherein:
the shell 1 mainly comprises a horizontal shell and a plurality of vertical shells to form a communicated shell structure; the shell 1 is provided with a hole communicated with the interior of the shell, and the liquid charging pipe 5 is fixedly connected to the shell 1 through the hole; the shell 1 is made of an aluminum-based material, the inner surface of the shell is coated with a nano-thickness super-hydrophilic coating, the main components of the super-hydrophilic coating are nano silicon oxide and nano titanium oxide, and the contact angle is less than 10 degrees;
the serpentine pipeline 2 is arranged in the horizontal shell, and the two ends of the serpentine pipeline are respectively provided with a serpentine pipeline inlet 3 and a serpentine pipeline outlet 4 which are both led out of the shell 1; the snakelike pipeline 2 is made of an aluminum-based material, the outer surface of the snakelike pipeline is provided with a super-hydrophobic coating, and the super-hydrophobic coating is a Teflon coating with a contact angle larger than 150 degrees;
the liquid absorption core 6 is arranged in the vertical shell, is of a single foamed aluminum structure and has super-hydrophilic characteristics, and the main components of the material for carrying out super-hydrophilic modification on the liquid absorption core 6 are nano silicon oxide and nano titanium oxide.
After a liquid filling pipe 5 is used for filling cooling working media into the flat shell, a certain area of the flat shell is heated, the temperature of the heated area is increased, liquid in the area near the internal evaporation surface corresponding to the area is boiled, the generated gas working media flows upwards due to the pressure difference, the bead condensation is carried out on the outer surface of the serpentine pipeline 2, part of the working media at the evaporation end is converted into a gas state from a liquid state, and the condensed liquid working media continuously flow and supplement to the evaporation end under the driving of the capillary force and the gravity of a liquid absorption core 6. The heat of the heated area is continuously transferred to the cooling working medium in the serpentine pipeline 2 through the gas-liquid phase change and the circular flow of the working medium.
Snakelike pipeline 2 communicates with each other with the external world, and cooling medium gets into snakelike pipeline 2 through snakelike pipeline import 3, flows out snakelike pipeline 2 through snakelike pipeline export 4. The flowing liquid cooling working medium continuously takes away the heat emitted when the steam is condensed, and the reciprocating circulation realizes the effective control of the highest temperature of the battery pack and the temperature difference between the single batteries.
The invention has the beneficial effects that:
1) the phase change of the working medium is utilized to take away the heat generated in the working process of the battery pack, and the heat dissipation efficiency is high;
2) cooling is carried out inside the heat pipe through a serpentine pipeline, so that a heat sink structure is omitted;
3) the serpentine pipeline has the function of supporting the interior of the flat heat pipe while condensing the steam, so that the mechanical strength is improved;
4) multiple evaporation surfaces share one condensation cavity, so that the structure is more compact, and the total volume of the battery pack cooling device is reduced;
5) the phase change points of the working medium in each evaporation cavity are the same, so that the temperature consistency among the single batteries can be effectively controlled;
drawings
FIG. 1 is an oblique view of a housing;
FIG. 2 is a serpentine circuit;
FIG. 3 is an oblique view of a flat heat pipe with multiple evaporation surfaces sharing a condensation chamber (high housing transparency);
FIG. 4 is a top view of a flat heat pipe with multiple evaporation surfaces sharing a condensation chamber (high housing transparency);
FIG. 5 is an oblique view of a flat heat pipe with multiple evaporation surfaces sharing a condensation chamber (housing opaque);
figure 6 is a front view of a shell and wick assembly (high shell transparency);
FIG. 7 is a power cell module model;
fig. 8 is an assembly of a flat heat pipe where the power cell stack and multiple evaporation surfaces share a condensation chamber.
In the figure: 1, a shell; 2, a snake-shaped pipeline; 3, a snakelike pipeline inlet; 4, a serpentine pipeline outlet; 5, filling a liquid pipe; 6 a liquid absorption core; 7 lowest liquid level line.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. It is to be understood that such description is merely illustrative of the features and advantages of the present invention, and is not intended to limit the scope of the claims.
The invention discloses a power battery heat pipe cooling device which comprises a shell, a liquid absorption core, a serpentine pipeline and a liquid charging pipe.
The shell is made of an aluminum-based material, the inner surface of the shell is coated with a layer of nano-thickness super-hydrophilic coating, the main components of the super-hydrophilic coating are nano silicon oxide and nano titanium oxide, and the contact angle is less than 10 degrees.
The liquid absorption core is of a single foamed aluminum powder structure and has super-hydrophilic characteristics; the main components of the material for super-hydrophilic modification of the imbibing core are nano silicon oxide and nano titanium oxide.
The snakelike pipeline be aluminium base material, its pipeline surface has super hydrophobic coating, super hydrophobic coating is the teflon coating that the contact angle is greater than 150 degrees.
The shell is provided with a hole communicated with the interior of the shell, and the liquid filling pipe is fixedly connected to the shell through the hole;
the space formed by the outer surface of the serpentine pipeline and the inner surface of the shell is sealed, and the shell is sealed in a welding mode.
As shown in fig. 1, which is an oblique view of the housing, the inner surface of the housing has super-hydrophilic characteristics, and since the super-hydrophilic modification technology has been fully developed and applied, there are many ways to modify super-hydrophilic characteristics, and this example selects the coating method. Namely, a layer of super-hydrophilic coating is coated on the inner surface of a flat plate shell, and the main components of the coating are nano silicon oxide and nano titanium oxide. And after the coating is finished, the coating is placed in a vacuum drying oven to be dried for two hours, and the finally obtained surface contact angle is less than 10 degrees. The case is welded from an aluminum plate, and the welding method is not particularly limited, but it is necessary to ensure good sealing. Illustratively, the welding method adopted by the invention is brazing.
As shown in fig. 2, the serpentine pipeline is coated with a teflon coating on its surface, so that the external surface of the pipeline has super-hydrophobic characteristics, and after the surface is dried, the contact angle of the surface is measured to be greater than 150 degrees.
Fig. 3 is an oblique view (high transparency of the casing) of a flat heat pipe with multiple evaporation surfaces sharing a condensation chamber, wherein a wick 6 is contained, and the capillary structure of the wick 6 can be sintered aluminum powder, foamed aluminum, a wire mesh and a micro-channel structure. The foam aluminum with larger pore diameter is adopted as the liquid absorption core 2 in the example, and the structure is more stable due to the single capillary structure, so that the mechanical strength of the flat heat pipe is effectively increased. And soaking the sintered liquid absorption core 6 in a prepared super-hydrophilic solution (the main components of the solution are nano silicon oxide and nano titanium oxide), taking out the liquid absorption core 2 after about 1 hour of soaking, and drying in a vacuum drying oven for 2 hours to finally obtain the liquid absorption core 2 with the super-hydrophilic characteristic.
It can be seen that the outer surface of the wick 6 lies against the inner surface of the housing and can be held in compression. The outer surface of the snake-shaped pipeline is tightly attached to the inner wall of the shell, so that the shell is supported, and the mechanical strength of the device is effectively improved.
Fig. 4 is a top view (high transparency of the shell) of a flat heat pipe with multiple evaporation surfaces sharing a condensation chamber, wherein a serpentine inlet 3 and a serpentine outlet 4 are included. The snakelike pipeline is communicated with the outside, and the cooling working medium enters the snakelike pipeline through the working medium inlet and flows out of the snakelike pipeline through the snakelike pipeline outlet. The flowing liquid cooling working medium continuously takes away the heat emitted when the steam is condensed, and the reciprocating circulation realizes the effective control of the highest temperature of the battery pack and the temperature difference between the single batteries.
Fig. 6 shows a front view of the shell and wick assembly (high transparency of the shell) including the lowest liquid level line 7, i.e., the liquid fill height required to be greater than or equal to the lowest liquid level line 7 during liquid filling, so that the temperature is uniform across the evaporation surface. In this example, taking the lithium ion battery as an example, when the operating temperature of the lithium ion battery exceeds 40 ℃, the cycle life of the lithium ion battery is reduced by two months for every 1 ℃ rise, so that a working medium with a low boiling point is required. Ammonia (25% solution) with a boiling point of 38 ℃ was used in this example.
Fig. 7 shows a battery model used in this example, which is a 1-pack 6-block battery. After the flat heat pipe is assembled, as shown in fig. 8, ammonia water is filled into the flat heat pipe through the liquid filling pipe, a certain area of the flat heat pipe is heated, the temperature of the heated area is increased, liquid in an area near an internal evaporation surface corresponding to the area is boiled, generated gas working medium flows upwards due to air pressure difference, bead-shaped condensation is carried out on the outer surface of the serpentine pipeline, part of working medium at an evaporation end is converted into gas from liquid, and the condensed liquid working medium continuously flows and is supplemented to the evaporation end under the driving of capillary force and gravity of the liquid absorption core. The heat of the heated area is continuously transferred to the cooling working medium in the serpentine pipeline through the gas-liquid phase change and the circular flow of the working medium.
The snakelike pipeline is communicated with the outside, and the cooling working medium enters the snakelike pipeline through the working medium inlet and flows out of the snakelike pipeline through the snakelike pipeline outlet. The flowing liquid cooling working medium continuously takes away the heat emitted when the steam is condensed, and the reciprocating circulation realizes the effective control of the highest temperature of the battery pack and the temperature difference between the single batteries. It is emphasized that the inside of the serpentine circuit is not evacuated,
but the enclosed space between the outer surface of the serpentine and the inner surface of the housing is evacuated.
In summary, the invention discloses a flat heat pipe with multiple evaporation surfaces sharing a condensation cavity for cooling a cell stack, and combines the heat exchange concept of the flat heat pipe with the actual structure of a power battery pack. The improved flat heat pipe has the advantages that the improved flat heat pipe is improved theoretically, a heat sink structure is omitted, steam generated by an evaporation surface can be directly condensed on the outer surface of the serpentine pipeline, and heat emitted by condensation is directly taken away by a cooling working medium in the serpentine pipeline, so that the highest temperature of a battery pack and the temperature difference between battery monomers are effectively controlled.
The technical solutions and advantages of the present disclosure have been described in detail with reference to the specific examples, and it should be understood that the above description is only exemplary of the present disclosure, and is not intended to limit the present disclosure. The sizes and shapes of the various elements in the drawings are not to be considered as reflecting actual sizes and proportions, but are merely representative of the contents of the present example. Any modification, improvement or equivalent replacement made on the principle and spirit of the present disclosure is within the protection scope of the present disclosure.

Claims (5)

1. A flat heat pipe with a multi-evaporation surface shared condensation chamber for cooling a battery stack is characterized by comprising a shell (1), a serpentine pipeline (2), a liquid charging pipe (5) and a liquid absorption core (6), wherein:
the shell (1) mainly comprises a communicating shell structure consisting of a horizontal shell and a plurality of vertical shells; the shell (1) is provided with a hole communicated with the interior of the shell, and the liquid filling pipe (5) is fixedly connected to the shell (1) through the hole;
the snake-shaped pipeline (2) is arranged in the horizontal shell, and the two ends of the snake-shaped pipeline are respectively provided with a snake-shaped pipeline inlet (3) and a snake-shaped pipeline outlet (4) which are both led out of the shell (1);
the liquid absorbing core (6) is arranged in the vertical shell.
2. The flat heat pipe with the multiple evaporation surfaces sharing the condensation cavity for cooling the cell stack as claimed in claim 1, wherein the shell (1) is made of an aluminum-based material, the inner surface of the shell is coated with a layer of nano-thickness super-hydrophilic coating, the super-hydrophilic coating mainly comprises nano-silicon oxide and nano-titanium oxide, and the contact angle is less than 10 degrees.
3. The flat heat pipe with the condensation chamber shared by multiple evaporation surfaces for cooling the cell stack as claimed in claim 1 or 2, wherein the serpentine pipeline (2) is made of an aluminum-based material, and the outer surface of the serpentine pipeline is provided with a super-hydrophobic coating which is a teflon coating with a contact angle of more than 150 degrees.
4. The flat-plate heat pipe with multiple evaporation surfaces sharing a condensation chamber for cooling a battery stack as claimed in claim 1 or 2, wherein the liquid absorption core (6) is a single foamed aluminum structure with super-hydrophilic characteristics, and the main components of the material for super-hydrophilic modification of the liquid absorption core (6) are nano silicon oxide and nano titanium oxide.
5. The flat plate heat pipe with multiple evaporation surfaces sharing a condensation chamber for cooling a battery stack as claimed in claim 3, wherein the liquid absorption core (6) is a single foamed aluminum structure with super-hydrophilic characteristics, and the main components of the material for super-hydrophilic modification of the liquid absorption core (6) are nano silicon oxide and nano titanium oxide.
CN201911357855.9A 2019-12-25 2019-12-25 Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack Pending CN111076591A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911357855.9A CN111076591A (en) 2019-12-25 2019-12-25 Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911357855.9A CN111076591A (en) 2019-12-25 2019-12-25 Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack

Publications (1)

Publication Number Publication Date
CN111076591A true CN111076591A (en) 2020-04-28

Family

ID=70317667

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911357855.9A Pending CN111076591A (en) 2019-12-25 2019-12-25 Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack

Country Status (1)

Country Link
CN (1) CN111076591A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111786049A (en) * 2020-07-09 2020-10-16 大连理工大学 Two-phase immersed cooling system with multi-module sharing one condensation cavity for battery cooling
CN111864305A (en) * 2020-08-11 2020-10-30 大连理工大学 Two-phase immersed battery liquid cooling box for filling phase change capsules
CN111883878A (en) * 2020-08-13 2020-11-03 大连理工大学 Two-phase immersed battery liquid cooling system with multi-module sharing one constant voltage device
CN111883878B (en) * 2020-08-13 2024-05-10 大连理工大学 Two-phase immersed battery liquid cooling system with multiple modules sharing one constant-pressure device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102664292A (en) * 2012-05-22 2012-09-12 上海电力学院 Radiating and cooling device for power battery
US20140318746A1 (en) * 2013-04-26 2014-10-30 Hyundai Motor Company Device for indirectly cooling battery module of eco-friendly vehicle
CN104930891A (en) * 2015-06-08 2015-09-23 济南大学 Self-cleaning heat pipe with super-hydrophilic liquid absorption core
CN106091765A (en) * 2016-06-15 2016-11-09 广东工业大学 A kind of flat-plate heat pipe and preparation method thereof
CN106793685A (en) * 2016-12-09 2017-05-31 淳铭散热科技股份有限公司 A kind of composite heat dissipation device
CN108511850A (en) * 2018-05-30 2018-09-07 华南理工大学 A kind of power battery compound thermal management system and method based on Natural Circulation
CN211451991U (en) * 2019-12-25 2020-09-08 大连理工大学 Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102664292A (en) * 2012-05-22 2012-09-12 上海电力学院 Radiating and cooling device for power battery
US20140318746A1 (en) * 2013-04-26 2014-10-30 Hyundai Motor Company Device for indirectly cooling battery module of eco-friendly vehicle
CN104930891A (en) * 2015-06-08 2015-09-23 济南大学 Self-cleaning heat pipe with super-hydrophilic liquid absorption core
CN106091765A (en) * 2016-06-15 2016-11-09 广东工业大学 A kind of flat-plate heat pipe and preparation method thereof
CN106793685A (en) * 2016-12-09 2017-05-31 淳铭散热科技股份有限公司 A kind of composite heat dissipation device
CN108511850A (en) * 2018-05-30 2018-09-07 华南理工大学 A kind of power battery compound thermal management system and method based on Natural Circulation
CN211451991U (en) * 2019-12-25 2020-09-08 大连理工大学 Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111786049A (en) * 2020-07-09 2020-10-16 大连理工大学 Two-phase immersed cooling system with multi-module sharing one condensation cavity for battery cooling
CN111786049B (en) * 2020-07-09 2024-05-07 大连理工大学 Two-phase immersed cooling system with multiple modules sharing one condensing cavity for battery cooling
CN111864305A (en) * 2020-08-11 2020-10-30 大连理工大学 Two-phase immersed battery liquid cooling box for filling phase change capsules
CN111864305B (en) * 2020-08-11 2024-04-16 大连理工大学 Two-phase immersion type battery liquid cooling box filled with phase-change capsules
CN111883878A (en) * 2020-08-13 2020-11-03 大连理工大学 Two-phase immersed battery liquid cooling system with multi-module sharing one constant voltage device
CN111883878B (en) * 2020-08-13 2024-05-10 大连理工大学 Two-phase immersed battery liquid cooling system with multiple modules sharing one constant-pressure device

Similar Documents

Publication Publication Date Title
CN208986137U (en) A kind of batteries of electric automobile packet radiator based on hot pipe technique
CN111883876B (en) Mutually-communicated modularized battery module immersed liquid cooling system
CN102157761A (en) Thermal management system for power battery based on pulsating heat pipe
CN111864305B (en) Two-phase immersion type battery liquid cooling box filled with phase-change capsules
CN203503756U (en) Thermal management system of power battery based on flat plate loop heat pipes
CN111786049A (en) Two-phase immersed cooling system with multi-module sharing one condensation cavity for battery cooling
CN203481341U (en) Battery pack cooling structure
CN104538700A (en) Flat micro heat pipe cooling device inserted in power battery for vehicle and cooling method of device
CN111076591A (en) Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack
Lin et al. Research progress of phase change storage material on power battery thermal management
CN108511850B (en) Power battery composite thermal management system and method based on natural circulation
CN212257625U (en) Two-phase immersed battery liquid cooling box for filling phase change capsules
ElBahloul et al. Recent advances in multistage sorption thermal energy storage systems
CN113241485A (en) Increase battery package of phase transition heat transfer
CN211451991U (en) Flat heat pipe with multiple evaporation surfaces sharing condensation cavity for cooling cell stack
CN214589014U (en) Temperature-balanced thermal management equipment and battery thermal management system
CN103367837A (en) Power battery thermal management system based on flat loop heat pipes
Khan et al. Hybrid PCM-based thermal management for lithium-ion batteries: Trends and challenges
CN210430029U (en) Plate-type heating and cooling heat conduction device and temperature-controllable lithium battery pack adopting same
CN115458832A (en) Power battery cooling system with synergistic effect of multi-element composite phase change material and water cooling
CN216058098U (en) Cooling device
CN208478472U (en) A kind of simple battery heat control system based on phase-change material
CN105978405A (en) Thermoelectric generation power system of delivery vehicle
CN112582703B (en) Novel battery cooling structure based on coupling of heat pipe and liquid cooling plate
CN219534649U (en) Battery and transport means

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