CN109411847A - A kind of battery pack heat management device and its heat dissipation and heating means - Google Patents
A kind of battery pack heat management device and its heat dissipation and heating means Download PDFInfo
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- CN109411847A CN109411847A CN201811292242.7A CN201811292242A CN109411847A CN 109411847 A CN109411847 A CN 109411847A CN 201811292242 A CN201811292242 A CN 201811292242A CN 109411847 A CN109411847 A CN 109411847A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—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
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention provides a kind of battery pack heat management device and its heat dissipation and heating means, including multiple single batteries, metal plate, metallic fiber stick, cabinet, cooling plate, reflux unit, electromagnetic heater, spray equipment, cabinet by the groove of through-hole wall on metallic fiber stick and metal plate by liquid adsorption in cabinet in the through-hole of metal plate, the liquid between metal plate and metallic fiber stick is heated while temperature of powered cell increases, liquid phase-change is steam after temperature is increased to certain value, after again steam being condensed by the cooling effect of cooling plate flow back to cabinet through reflux unit, it is recycled with this and achievees the purpose that battery pack radiates, simplify the structure of battery heat dissipation.In cold conditions, liquid in cabinet is quickly heated using electromagnetic heater, promotes heat in single battery surrounding loop.The present apparatus and method have efficient autonomous operation heat-sinking capability and heating efficiency, solve the problems, such as that heat management system is at high cost and a large amount of consumption power battery electricity.
Description
Technical field
The present invention relates to battery pack thermal management technology fields, in particular to a kind of battery pack heat management device and its dissipate
Heat and heating means.
Background technique
As the environmental consciousness of people constantly enhances, the demand of new cleaning fuel is also constantly being expanded.Battery is made
For the clean energy resource for substituting fossil energy, the application effect on electric vehicle is gradually approved by the public, so that electronic
Automobile is also more more and more universal.Multiple battery packs are distributed on the solar panel of electric car, battery pack is usually by multiple battery pack strings
Connection, provides power supply, while also continuous stored energy source for electric car.However, battery pack is enclosed construction, operating current
Greatly, the heat of generation is big.If lack effectively heat dissipation, the temperature that may cause battery is excessively high, influence battery charging and discharging capabilities and
It is service life, serious also to cause battery spontaneous combustion, or even explosion.
Current battery pack radiator structure, is usually taken single radiating mode, and multiple conducting-heat elements and vent passages are arranged,
Then in such a way that electric fan carries out wind-cooling heat dissipating, or even part electric vehicle does not take any cooling measure.However,
The effect of battery pack wind-cooling heat dissipating is undesirable, it is difficult to maintain the suitable temperature of battery.In addition, the efficiency of current liquid-cooling heat radiation is also
Wait improve, and it is complicated integral structure, heavy.Meanwhile the most of areas in China make a clear distinction between the four seasons, the outdoor temperature of summer high temperature weather
Even up to 40 degree or more.Battery temperature steeply rises under such environment, if cannot radiate in time to battery, it will right
Power battery causes irreversible damage.When serious, or even thermal runaway occurs, causes catastrophic loss.The above problem is battery
The popularization of packet and electric car brings obstruction, prevents people from electric car safe to use.
Therefore, the radiating management of battery pack is particularly important, it is desirable to provide a kind of heat management dress of the battery pack of higher efficiency
It sets and its radiates and heating means.
Summary of the invention
The present invention in view of the deficiency of the prior art, proposes the high battery pack of a kind of features simple structure, heat exchange efficiency
Heat management device and its heat dissipation and heating means.The heat management device of the battery pack and its heat dissipation and heating means mainly pass through case
Body, multi-through hole aluminium sheet, metallic fiber stick, cooling plate, reflux unit, spray equipment, electromagnetic heater are used cooperatively, benefit
The heat generated with the transformed band walking power battery last of liquid, realizes the regulation to battery pack temperature, reaches electric car electricity
The purpose of pond packet high efficiency and heat radiation.Also, under low-temperature condition, the quick heating effect of battery pack can be realized.
To achieve the above object, the present invention provides a kind of battery pack heat management devices, including cabinet, multiple power electrics
Pond, metal plate, cooling plate, reflux unit, metallic fiber stick；Wherein, the metal plate is installed between the power battery,
Metallic fiber stick bottom described in cabinet is inserted into cabinet, and the cooling plate is inserted at top；Liquid phase-change in the cabinet
The cooling plate is flowed through by the metallic fiber stick afterwards and the reflux unit flows back to cabinet；The cooling plate
It is tightly connected respectively with the metal plate and the reflux unit.
Optionally, multiple through-holes are distributed on the metal plate, metallic fiber stick middle section is located at the through-hole
It is interior, groove is distributed on the through-hole wall.
Optionally, the cooling plate includes top plate and lower plywood, and the lower plywood is in tabular, the top plate
In ridge, the cooling plate is tightly connected by the lower plywood and the metal plate and the reflux unit.
Optionally, multiple sipes are distributed in the lower plywood, and the sipes position is corresponding with the installation site of metal plate, institute
The inner surface for stating top plate is evenly distributed with groove along gradient direction.
Optionally, the outer surface of the top plate is evenly distributed with radiating fin.
It optionally, further include spray equipment, the spray equipment is mounted on the top of fin.
Optionally, the three face aperture of cabinet, the cabinet upper surface are uniformly distributed multiple rows of Process, two sides difference
Multiple fluid return ports are distributed, return port is located proximate to cabinet upper surface.
Optionally, the bottom of box installs electromagnetic heater.
Preferably, the metal plate is aluminium sheet.
The present invention also provides a kind of heat dissipation and heating means such as above-mentioned battery pack heat management device, radiation processes include:
Metallic fiber stick is by liquid adsorption in cabinet into metal plate inner hole；
When metal plate is heated by power battery, the liquid in inner hole is heated；
Fluid temperature is evaporated to steam after reaching phase transition temperature, then is flowed back to case through reflux unit after the condensation of cooling plate
Body；
Heating process includes:
At low temperatures, the liquid in electromagnetic heater heating compartment is opened, heat is reached metal plate by cabinet, to every
It is heated in three faces of block single battery；
After the liquid in cabinet reaches certain temperature, liquid is by metallic fiber stick in the another of the metallic fiber stick
Head evaporation, is then condensed by cooling plate, flows back through reflux unit, carries out recycle heat.
Compared with prior art, battery pack heat management device provided by the invention and its heat dissipation and heating means are based on liquid
Waste heat is taken away in phase transformation, takes full advantage of the capillary attraction of heat transfer, metallic fiber stick and groove to liquid of aluminium sheet.Using gold
Belong to the groove of through-hole wall on fiber stick and aluminium sheet, by liquid adsorption in the through-hole of aluminium sheet, aluminium sheet is heated by power battery
The liquid in inner hole is heated simultaneously.It is evaporated to steam after fluid temperature raising reaches phase transition temperature, steam is in cooling plate
Cooling box is carried out, groove is also distributed in the double-deck cooling plate, and convenient for guidance liquid flow direction, liquid flows back to case through reflux unit
Body is recycled with this and achievees the purpose that battery pack radiates, simplifies the structure of battery heat dissipation.In addition, cooling plate top plate
Cooling fin is installed on outer surface.It is dissipated in general by air duct as coldplate in vehicle travel process using external natural wind
Heat.When summer ambient temperature is excessively high to be needed to open air-conditioning, coldplate is accessed into the air duct of air-conditioning, cold wind is from two cooling fins
Between flow through the cooling efficiency increased to coldplate.The present invention is by the way of natural wind and spraying cooling technology, greatly
Save the heat that battery thermal management needs to consume.In addition, at low temperatures quickly will be in cabinet using electromagnetic heater
Liquid heating realizes that three faces of single battery are heated using the heat transfer of aluminium sheet, and makes liquid rapid condensation by metallic fiber stick
Reflux, accelerates circulation of the heat around single battery, realizes the high-efficiency heating of battery.
Detailed description of the invention
The following detailed description is read with reference to the accompanying drawings, above-mentioned and other mesh of exemplary embodiment of the invention
, feature and advantage will become prone to understand.In the accompanying drawings, if showing by way of example rather than limitation of the invention
Dry embodiment, in which:
Fig. 1 schematically shows the structural schematic diagram of battery pack heat management device in an embodiment.
Fig. 2 schematically shows the structures that power battery in Fig. 1 and cabinet, metal plate, metallic fiber stick are coupled
Schematic diagram.
Fig. 3 schematically shows the cabinet schematic perspective view of battery pack heat management device in an embodiment.
Fig. 4 schematically shows the metal plate structure schematic diagrames of battery pack heat management device in an embodiment.
Fig. 5 schematically shows the cooling plate structural schematic diagram of battery pack heat management device in an embodiment.
Fig. 6 schematically shows the partial enlargement structural representation in Fig. 5 at A.
The reflux unit structure that Fig. 7 schematically shows battery pack heat management device in an embodiment in an embodiment is shown
It is intended to.
The metallic fiber stick that Fig. 8 schematically shows battery pack heat management device in an embodiment is installed in metal plate
Structural schematic diagram.
Fig. 9 schematically shows power battery and cabinet, metal plate, metallic fiber stick in an embodiment and is coupled
Another structural schematic diagram.
Appended drawing reference:
1: reflux unit；2: metal plate；3: cabinet；4: metallic fiber stick；5: cooling plate；6: power battery；1-1:
Backflash；2-1: through-hole；2-2: groove；3-1: return port；3-2: imbibing hole；5-1: lower plywood；5-2: radiating fin；5-3: wide
Slot.
Specific embodiment
The principle and spirit of the invention are described below with reference to several illustrative embodiments.It should be appreciated that providing this
A little embodiments are used for the purpose of making those skilled in the art can better understand that realizing the present invention in turn, and be not with any
Mode limits the scope of the invention.Part of feature is dispensed in varied situations, or can by other elements,
Material, method are substituted.
It is formed respectively in addition, feature described in this description, operation or feature can combine in any suitable way
Kind embodiment.Meanwhile each step in method description or movement can also can be aobvious and easy according to those skilled in the art institute
The mode carry out sequence exchange or adjustment seen.Therefore, the various sequences in the description and the appended drawings are intended merely to clearly describe a certain
A embodiment is not meant to be necessary sequence, and wherein some sequentially must comply with unless otherwise indicated.
As illustrated in fig. 1 and 2, the embodiment of the invention provides a kind of battery pack heat management devices, including cabinet 3, Duo Gedong
Power battery 6, metal plate 2, cooling plate 5, reflux unit 1, metallic fiber stick 4.The sequence that each component is installed from top to bottom is,
Topmost be cooling plate 5, centre be metal plate, metallic fiber stick 4, multiple power batteries 6 and reflux unit 1, it is most lower
Face is the porose cabinet 3 in three faces.The two sides of cabinet 3 are provided with the return port 3-1 for liquid reflux to cabinet, upper surface point
The bottom of the mounting hole of the multiple rows of uniform metallic fiber stick of cloth, metallic fiber stick 4 is inserted into cabinet 3 by mounting hole.In this reality
It applies in example, metal plate is preferably aluminium sheet.Optionally, multiple through-holes are provided on aluminium sheet, the insertion and suction for metallic fiber stick 4
Draw liquid phase-change.The length of multi-through hole metal plate 2 is equal to the length of two pieces of power batteries, with a thickness of 8mm, is highly higher than power electric
1.5 centimetres or so of pond.Since metal plate 2 is higher by the distance of power battery 6, then in vertical side between metal plate 2 and power battery
It is upwardly formed certain gap, convenient for the electrical connection between power battery 6.Under the upper surface of metal plate 2 and cooling plate 5
Flat face is touched and is sealed, and metallic fiber stick 4 exceeds the partial insertion cooling plate 5 of metal plate 2.The upper end of reflux unit 1
It is tightly connected respectively with the side of cooling plate 5 and cabinet 3 with lower end.Hydraulically full in cabinet 3, liquid is to take the photograph 35
Family name's degree or so is undergone phase transition and the stronger liquid of wetting capacity.Liquid is preferably the mixed solution of ethyl alcohol and water, is added a small amount of
Ethyl alcohol is used to reduce the boiling point of liquid, at the same in winter when avoid liquid from freezing.
As shown in figure 3, three face apertures of cabinet 3, upper surface are uniformly distributed multiple rows of Process i.e. imbibing hole 3-2, two sides
Face is distributed multiple fluid return ports 3-1 respectively, and return port 3-1's is located proximate to cabinet upper surface.Imbibing hole 3-2 is also metal
The mounting hole of fiber stick 4 is inserted into cabinet for metallic fiber stick 4, is attracted in liquid to metal plate 2.
In order to promote heat dissipation and acceleration efficiency, as shown in figure 4, through-hole 2-1 is distributed on metal plate 2, in metallic fiber stick 4
Between be partially located in through-hole 2-1, groove 2-2 is evenly distributed on the inner wall of through-hole 2-1, to increase changing for metal plate 2 and liquid
Heat area, while certain capillary water absorption power is also generated to liquid.The internal diameter of through-hole 2-1 is 6mm, the ditch slot number of inner surface distribution
Preferably 62, it is preferably shaped to inverted trapezoidal minor groove.Wherein, metallic fiber stick 4 possesses stronger capillary water absorption ability, preferably
Material is aluminium.
As shown in figure 8, the bottom of metallic fiber stick 4 is inserted into cabinet 3, top passes through the interior bone 2-1 of metal plate 2
Expose about two centimetres, is then inserted into cooling plate 5.When battery temperature is higher, by heating power influence, metallic fiber stick 4 is logical
It crosses in the interior bone 2-1 of the intracorporal liquid adsorption of case to metal plate 2 to the capillary water absorption power of liquid, while interior bone 2-
It is uniformly distributed groove 2-2 on 1 inner wall, can speed up the reflux cycle of liquid, improves the heat exchange of battery Yu aluminium sheet and liquid
Effect.Therefore, liquid while metal plate 2 is heated by power battery in heating interior bone 2-1.When fluid temperature raising reaches
To after phase transition temperature, liquid evaporation in metallic fiber stick 4 is steam, steam reach after cooling plate 5 is condensed again at
For liquid, cabinet 3 then is flowed back to through reflux unit 1.
As shown in fig. 7, the inside of reflux unit 1 is evenly distributed with the backflash 1-1 of vertical direction, backflash 1-1's is upper
End corresponds to the sipes 5-3 on cooling plate 5, and the lower end of backflash 1-1 corresponds to the return port of cabinet two sides, by liquid
It is guided in cabinet 3 from cooling plate 5.(i.e. reflux unit 1 contacts dissipates reflux unit 1 with the side of cooling plate 5 respectively
The top plate edge and lower plywood edge of hot coldplate 5 are simultaneously sealed, and liquid flows directly into reflux unit 1 in sipes 5-3) and
The side of cabinet 3 contacts and seals, and the liquid of reflux is isolated and is sealed with battery and other arrangements of electric connection.The dress
The heat transfer for taking full advantage of aluminium sheet, metallic fiber stick and groove are set to the capillary attraction of liquid, battery is promoted by liquid circulation
The high efficiency and heat radiation of packet.
As it can be seen in figures 5 and 6, cooling plate 5 includes top plate and lower plywood 5-1, lower plywood 5-1 is in tabular, upper layer
Plate is in ridge.Multiple bar shaped sipes 5-3, the installation of position and metal plate 2 and metallic fiber stick 4 are distributed on lower plywood 5-1
Position is corresponding, and sipes 5-3 is mutually sealed with width and with metal plate 2 with sheetmetal side.Cooling plate 5 passes through on lower plywood 5-1
Sipes 5-3 sealing is contacted with the upper surface of metal plate 2, side contacts sealing with reflux unit 1 again.The inner surface of top plate
On along gradient direction be evenly distributed with groove, for guiding liquid to flow to.It is uniformly installed on the outer surface on cooling plate upper layer
There is radiating fin 5-2, and there are certain intervals in transverse direction for each fin.Preferably, distance about four between every two panels radiating fin
To five centimetres.It is radiated in general by air duct as coldplate in vehicle travel process using external natural wind.
In one embodiment, battery pack heat management device further includes spray equipment, and spray equipment is mounted on the top of fin.
When summer, ambient temperature was excessively high, spray equipment is opened, indirect water spray is carried out to cooling plate 5, along radiating fin
Distribution arrangement, the water that cannot be evaporated in time are flowed through between two radiating fin 5-2, increase the cooling effect to cooling plate 5
Rate.Steam is condensed into after liquid on the cooling plate and flows to reflux unit 1 along groove, then flows back to from the return port 3-1 of 3 two sides of cabinet
Cabinet 3, the device are reached for the purpose of battery pack heat dissipation with this cycle operation.
When ambient temperature is too low to be needed to heat power battery 6, the electromagnetic heating of 3 bottom of cabinet is opened
Device realizes that three faces of every piece of single battery 6 are heated to the heat transfer of metal plate 2 using cabinet 3.When the liquid in cabinet 3 reaches one
After determining temperature, liquid is evaporated by the capillary force of metallic fiber stick 4 in the other end of fiber stick, and then rapid condensation is returned
Stream accelerates circulation of the heat around single battery.
In one embodiment, as shown in figure 9, metallic fiber stick 4 has another length.With metallic fiber stick 4 in Fig. 2
Uniform height it is different, the metallic fiber stick 4 in the embodiment can be contacted directly with the top plate of cooling plate.Along upper layer
The gradient of plate, the height of metallic fiber stick 4 is in intermediate high, the arrangement successively reduced to both sides, to increase the back-flow velocity of liquid.
One embodiment of the invention additionally provides a kind of heat dissipation and heating means such as above-mentioned thermal management device of battery, heat dissipation
When process includes: that such as battery surface temperature is higher than 45 degrees Celsius, using metallic fiber stick 4 to the capillary water absorption power of liquid
By liquid adsorption into 2 interior bone 2-1 of metal plate, interior bone 2-1 is heated while metal plate 2 is heated by power battery 6
In liquid.Fluid temperature is evaporated to steam after reaching phase transition temperature, then becomes liquid after meeting the condensation of cooling plate 5, through returning
Stream device 1 flows back to cabinet 3.It is cooled down at the same time it can also open spray equipment to cooling plate 5, accelerates cooling plate 5
The condensation rate of interior steam.
Heating process include: under low-temperature condition, such as battery surface temperature be lower than ten degrees Celsius, utilize electromagnetic heater
Quickly the liquid in cabinet 3 is heated, the heat transfer realization of metal plate 2 adds three faces of every piece of single battery 6 using cabinet 3
Heat.After the liquid in cabinet 3 reaches certain temperature, liquid is by the capillary force of metallic fiber stick 4 and groove 2-2 in gold
Belong to the other end evaporation of fiber stick 4, then rapid condensation flows back, and realizes circulation of the heat around single battery 6.
In general, battery pack heat management device provided by the invention and its heat dissipation and heating means are based on liquid phase-change
The waste heat for taking away battery pack, will by the groove of through-hole wall on metallic fiber stick and aluminium sheet using the capillary phenomenon of liquid
Liquid adsorption is in the through-hole of aluminium sheet in cabinet, by the liquid between aluminium sheet and metallic fiber stick while temperature of powered cell increases
Body heating, liquid phase-change is steam after temperature is increased to certain value, then is condensed steam by the cooling effect of cooling plate
Cabinet is flowed back to by reflux unit.Groove is also distributed in the double-deck cooling plate, and convenient for guidance liquid flow direction, liquid is filled through reflux
It sets and flows back to cabinet, recycled with this and achieve the purpose that battery pack radiates, simplify the structure of battery heat dissipation.The present invention uses natural wind
With the mode of spraying cooling technology, the heat that battery thermal management needs to consume is dramatically saved, the cooling of battery pack is improved
Efficiency.In addition, at low temperatures, quickly heated the liquid in cabinet using electromagnetic heater, it is real using the heat transfer of aluminium sheet
The three faces heating of existing single battery, and so that liquid rapid condensation is flowed back by metallic fiber stick, heat is accelerated in single battery
The circulation of surrounding, realizes the high-efficiency heating of battery.Electromagnetic heater can be used that the intracorporal liquid of case is quick in cold conditions
Heating promotes heat in single battery surrounding loop.The present apparatus and method have efficient autonomous operation heat-sinking capability and heating
Ability solves the problems, such as that many heat management systems are at high cost at present and a large amount of consumption power battery electricity.
Although above-mentioned, detailed description of the preferred embodimentsthe spirit and principles of the present invention are described, it should be appreciated that, the present invention is not
Be limited to disclosed specific embodiment, divisions of various aspects is not meant that yet the feature in terms of these cannot combine with into
Row is benefited, this to divide the convenience merely to statement.The present invention is directed to cover institute in spirit and scope of the appended claims
Including various modifications and equivalent arrangements.
Claims (10)
1. a kind of battery pack heat management device, which is characterized in that including cabinet, multiple power batteries, metal plate, cooling
Plate, reflux unit, metallic fiber stick；Wherein, the metal plate is between the power battery, metallic fiber stick bottom
It is inserted into cabinet, the cooling plate is inserted at top；Pass through the metallic fiber stick stream in the cabinet after liquid phase-change
Cabinet is flowed back to through the cooling plate and the reflux unit；The cooling plate respectively with the metal plate and described time
Device is flowed to be tightly connected.
2. battery pack heat management device according to claim 1, which is characterized in that be distributed on the metal plate multiple logical
Hole, metallic fiber stick middle section are located in the through-hole, and groove is distributed on the through-hole wall.
3. battery pack heat management device according to claim 1, which is characterized in that the cooling plate includes top plate
And lower plywood, the lower plywood are in tabular, the top plate is in ridge, the lower plywood and the metal plate and described time
Flow device sealing.
4. battery pack heat management device according to claim 3, which is characterized in that the lower plywood is distributed multiple sipes,
The sipes position is corresponding with the installation site of metal plate, and groove is distributed with along gradient direction in the inner surface of the top plate.
5. battery pack heat management device according to claim 4, which is characterized in that the outer surface of the top plate is uniformly divided
It is furnished with radiating fin.
6. battery pack heat management device according to claim 5, which is characterized in that it further include spray equipment, the spray
Device is mounted on the top of the fin.
7. battery pack heat management device according to claim 1, which is characterized in that the three face aperture of cabinet, the case
Body upper surface is uniformly distributed multiple rows of Process, and two sides are distributed multiple fluid return ports respectively, and the position of the return port is leaned on
The nearly cabinet upper surface.
8. battery pack heat management device according to claim 1, which is characterized in that the bottom of box installs electromagnetic heating
Device.
9. battery pack heat management device according to claim 1, which is characterized in that the metal plate is preferably aluminium sheet.
10. a kind of heat dissipation and heating means of such as described in any item battery pack heat management devices of claim 1-9, feature exist
In, radiation processes include: metallic fiber stick by liquid adsorption in cabinet into metal plate interior bone；
When metal plate is heated by power battery, the liquid in interior bone is heated；
Fluid temperature is evaporated to steam after reaching phase transition temperature, then is flowed back to cabinet through reflux unit after the condensation of cooling plate；
The heating process includes:
Under low-temperature condition, the liquid in electromagnetic heater heating compartment is opened, heat is reached metal plate by cabinet, to every piece of list
It is heated in three faces of body battery；
After the liquid in cabinet reaches certain temperature, liquid is steamed by metallic fiber stick in the other end of the metallic fiber stick
Hair, is then condensed by cooling plate, flows back through reflux unit, carries out recycle heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292242.7A CN109411847B (en) | 2018-10-31 | 2018-10-31 | Battery pack heat management device and heat dissipation and heating method thereof |
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