CN206134883U - Battery module heat pipe reason device based on pyroelectric effect - Google Patents
Battery module heat pipe reason device based on pyroelectric effect Download PDFInfo
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- CN206134883U CN206134883U CN201621169792.6U CN201621169792U CN206134883U CN 206134883 U CN206134883 U CN 206134883U CN 201621169792 U CN201621169792 U CN 201621169792U CN 206134883 U CN206134883 U CN 206134883U
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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
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Abstract
The utility model provides a battery module heat pipe reason device based on pyroelectric effect inside battery package box, hugs closely configuration battery module from top to bottom in order, heat conduction backup pad, thermoelectric subassembly of semiconductor and liquid heat conducting passageway to an even boudle heat conductor in the battery module, the heat conduction backup pad is hugged closely to the heat conductor lower part, wherein: the heat conduction backup pad is horizontal, and battery package box inner wall is hugged closely at its four weeks edges, the thermoelectric subassembly of semiconductor includes horizontal first heat exchanger plate and second heat exchanger plate to reaching the in the vertical position and hugging closely at the thermoelectric unit of a plurality of between the two, the the direction of current flow of the thermoelectric subassembly of semiconductor can switch, the liquid heat conducting passageway is located battery package bottom half, and hot fluid is led to the splendid attire in the liquid heat conducting passageway, and the liquid heat conducting passageway passes through the pump machine and outside heat exchanger intercommunication of the outside configuration of battery package box. This device collects the refrigeration, heats in an organic whole, and the battery can be guaranteed and work all the time to have good application prospect to compact structure, heat transfer high efficiency in best temperature environment.
Description
Technical field
This utility model is related to automobile-used energy-storage battery field of radiating, more particularly to a kind of battery modules based on pyroelectric effect
Heat management device.
Background technology
Energy-storage battery such as lithium ion battery energy density is high, and small volume, cycle life is longer, in electric passenger vehicle, commercial affairs
Application potential is very big on car.Yet with lithium ion battery, temperature raises impact self performance with the circulation longevity in charge and discharge process
Life, too high temperature even causes thermal runaway, causes the accidents such as spontaneous combustion, blast, conventional lithium cobaltate cathode material battery temperature
Control is needed within 50 degrees Celsius, to avoid thermal runaway and blast on fire, improve safety.With battery material and technique
It is progressive, although the battery operating temperature with LiFePO4 as positive electrode can be lifted to 60 degrees Celsius or higher, with temperature
Degree is further up, and battery capacity decay is obvious, and thermal runaway and Ignition Phenomena still can occur at high temperature.On the other hand, exist
The internal resistance of cell is big under low temperature, poor activity, difficulty in starting.Therefore study power lithium-ion battery thermal management technology and its implement particularly
Urgently.
Power lithium-ion battery cooling system is usually taken the cold mode of air-cooled or liquid and cools down battery, conventional wind-cooling heat dissipating system
System simple structure, but radiating effect is limited, and battery temperature lack of homogeneity.The cold mode heat exchange efficiency of liquid is high, but it is cooled down
Limited ability cooling water temperature when ambient temperature, hot weather intercepts battery radiating up to more than 40 DEG C, on the contrary.
It is a kind of novel battery heat management mode to carry out heat management using semiconductor heat electrical component, semiconductor heat electrical component one
As be made up of bismuth tellurium semiconductor material, thermoelectric components are in the case of energization because paltie effect forms chill surface and heating
Face, so as to realize the cooling to battery or heat effect.
Patent application CN 03274312.2 discloses a kind of battery type of cooling of employing semiconductor cooler, including battery
The refrigerator of case side side wall perimeter, the hot face of refrigerator and air cooling fin are fitted, and the laminating of refrigerator huyashi-chuuka (cold chinese-style noodles) passes cold drawing, and by interior
Put fan convection current and pass cold drawing with battery heat exchange to strengthen heat exchange.Due to the cross-ventilation coefficient of heat transfer it is little, typically in tens W/m2K is left
, there are multiple thermal resistances on the right side to opposite side battery from fan along journey, and heat exchanged thermoresistance is excessive, and refrigerator refrigerating efficiency is low.In addition, refrigeration
Device radiating surface fin presses close to battery case, and battery case can be heated on the contrary, does not reach radiating purpose.
Patent application CN 201210054888.8 discloses a kind of battery cooling apparatus of semiconductor refrigerating recirculated water, moves
Power set of cells is connected by water inlet pipe and outlet pipe with an outside cooling water tank for storing coolant, cooling water tank and half
Conductor chiller connect, water inlet pipe be provided with a promotion coolant circulation water pump, also including a controller, its input with
Temperature sensor and power battery pack circuit connect, and outfan is connected with semiconductor cooling device and water pump circuit.Quasiconductor system
The chill surface of cold element is close to connection with cold aluminum is passed, and radiating surface is close to connection with air-cooled radiating device；Pass cold aluminum be arranged at it is described
In cooling water tank, for reducing cooling water temperature, cooling water is connected to reduce battery temperature again with set of cells.The technical scheme
It is disadvantageous in that, because the heating surface caloric value of semiconductor refrigerating element is big, the heat for both having absorbed including chill surface also includes
The heat that refrigeration electrical power is converted, low using wind-cooling heat dissipating efficiency, refrigeration efficiency is limited.In addition, semiconductor refrigerating element away from
Away from battery, need to reheat set of cells by refrigeration water tank and pipeline institute reservoir storage, power consumption is big, and water route is along Cheng Lengliang
Loss is big, and thermal response speed is slow, and refrigerating efficiency is not enough.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of battery modules heat management based on pyroelectric effect
Device, this utility model is in battery case, the bottom of battery modules is compact arranges semiconductor heat electrical component, by high-termal conductivity
Heat carrier forms thermal conducting path with battery, under megathermal climate environment and performs different mode of operations under microthermal climate environment,
With thermal response speed is fast, temperature control accurate, noiseless, apply in energy storage lithium ion battery, can reduce in hot weather
Battery temperature, in severe cold weather thermal cell can be added, and be greatly improved battery life and job stability, also, described device is tied
Structure is compact, small volume, is conducive to being arranged in limited space.
This utility model is achieved through the following technical solutions：
A kind of battery modules heat management device based on pyroelectric effect, it is characterised in that：
In battery bag box house, from top to bottom sequentially it is close to configure battery modules, heat transfer support plate, semiconductor thermoelectric group
Heat transfer support plate is close in part and liquid thermal conductivity passage, and the multiple heat carriers of even cloth in battery modules, heat carrier bottom, wherein：
Heat transfer support plate is horizontal, and battery bag cabinet wall is close in its edge；
Semiconductor heat electrical component includes horizontal the first heat exchanger plate and the second heat exchanger plate, and vertically-arranged is close to both
Between several thermoelectric units, it is some to p-type thermoelectric arm and N-type thermoelectric arm that each thermoelectric unit includes being electrically connected in series,
Series/parallel electrical connection between thermoelectric unit；The both positive and negative polarity of single semiconductor heat electrical component directly with battery bag casing outside it is straight
Stream power positive cathode electrical connection；Or, after the electrical connection of multiple semiconductor thermoelectric component series/parallels, its both positive and negative polarity again with battery bag
DC source electricity both positive and negative polarity connection outside casing；Also, the sense of current of semiconductor heat electrical component is allowed hand over；
Liquid thermal conductivity passage is located in battery bag box bottom, liquid thermal conductivity passage and contains heat-conducting liquid, and correspondence liquid is led
The two ends port of the passage of heat, opens up inlet and liquid outlet on battery bag casing, and liquid thermal conductivity passage passes through battery bag casing
The pump machine of exterior arrangement is connected with external heat exchanger.
Refrigeration mode is performed in hot weather, due to paltie effect, first heat exchange on semiconductor heat electrical component top
Plate is cold plate, below its rapid drop in temperature to ambient temperature, is radiated by heat transfer support plate, heat carrier, can be by battery temperature
Degree is reduced to below ambient temperature, and the second heat exchanger plate of semiconductor heat electrical component bottom is heat sink, its heat for producing
Emitted by liquid thermal conductivity passage and external heat exchanger；Heating mode, semiconductor heat are switched under cold low temperature environment
The positive and negative umpolung of electrical component, causes first heat exchanger plate on semiconductor heat electrical component top to be changed into heating plate, by leading after energization
Hot gripper shoe, heat carrier heating, rise battery temperature, reach normal operating temperature range, and under semiconductor heat electrical component
Second heat exchanger plate in portion is absorber plate, if it is higher than ambient temperature that the second heat exchanger plate temperature is equal to, pump office closes, if the
Two heat exchanger plate temperature are less than ambient temperature, and pump machine is opened, and the second heat exchanger plate is by the heat-conducting liquid in liquid thermal conductivity passage
Amount of heat is absorbed, and thermal cell is added by the first heat exchanger plate, heat transfer support plate.
Further, the heat carrier is the rectangular plate-like heat transmission fin parallel to battery configuration, the battery modules
Multiple square brick shape battery stacks are horizontal or vertically-arranged in column：
If battery stack is horizontal, heat transfer support plate top upright parallel configures multiple rows of heat conduction supporting vertical plate, heat conduction
Heat transfer support plate is close in supporting vertical plate lower end, and two adjacent row's heat conduction supporting vertical plates, adjacent two layers are close in the battery two ends of stacking
A piece of heat transmission fin is configured between battery, or, one layer of battery is configured between two panels heat transmission fin, heat transmission fin is close to adjacent
Battery, left and right two ora terminalis is close to two adjacent row's heat conduction supporting vertical plates；
If battery vertically-arranged in column, configures a piece of heat transmission fin between two row batteries, or, match somebody with somebody between two panels heat transmission fin
One piece of battery is put, or, a piece of heat transmission fin of homonymy correspondence configuration of each column battery, heat transmission fin is close to adjacent battery, under
It is close to heat transfer support plate in end；
Heat-conducting pad is configured or not configured between battery and the binding face of heat transmission fin；If configuration heat-conducting pad, leads
The size of heat pad piece matches with battery with the size of the binding face of heat transmission fin, and heat-conducting pad is graphite heat-conducting fin, Graphene
Conducting strip or organosilicon conducting strip, heat-conducting pad is connected respectively by gum with heat transmission fin and battery.
The thermal conducting path of battery-heat transmission fin-heat transfer support plate, by the heat transmission fin of high-termal conductivity and single battery and
The directly contact of heat transfer support plate carries out conduction of heat, and the coefficient of heat transfer is big, and thermal response speed is fast, and heat transfer efficiency is high, and each electricity
Pond, each position of single battery temperature it is uniform, it is ensured that the work efficiency of battery, and the good reliability that battery is used；
With respect to battery and heat transmission fin, the pliability of heat-conducting pad is good, can reduce interface thermal conduction resistance, improves heat conductivility, and delays
Rush mechanical stress.
Further, the heat carrier includes being in the form of a column the heating column of vertical configuration and the heat conduction diffuser plate of landscape configuration,
Multiple cylindrical batteries of the battery modules are in rectangular vertical configuration, are closely sleeved in the perforate of heat conduction diffuser plate, heat conduction
Post upper end is fastened on heat conduction diffuser plate bottom, and heat transfer support plate is close in lower end, battery be located at four heating columns surround it is square
Center, battery is not contacted with heating column.
Heating column cross sectional shape is square, circular, star or other similar, section shapes with larger heat conduction outer rim
Shape, forms by the thermal conducting path of battery-heat conduction diffuser plate-heating column-heat transfer support plate, by the heat conduction diffuser plate of high-termal conductivity
Conduction of heat is carried out with the directly contact of heating column and single battery and heat transfer support plate, heating column has heat conduction dual with what is supported
Function.
Further, above the heat transfer support plate filling phase-change material layers in battery bag casing, or Embedding Material
Layer, or insulating heat-conductive oil；Or, filling phase transformation material in the battery bag casing between the heat transfer support plate and heat conduction diffuser plate
The bed of material, or Embedding Material layer, or insulating heat-conductive oil；The phase-change material layers are the stone comprising phase transition temperature at 20～80 DEG C
The phase-change material layers of one or more in wax, fatty acid phase-change material；The elastic Embedding Material layer is more than for thermal conductivity
The organosilicon of 0.2W/mK, urethane material；The insulating heat-conductive oil is organic conduction oil of the thermal conductivity more than 0.05W/mK.
Phase-change material layers or thermoplasticity Embedding Material layer have certain heat-conducting effect：Latent heat of the phase-change material when dissolving
The partial heat of battery generation can be absorbed, and keeping temperature is constant, so as to reduce battery temperature thermal shock amplitude, additionally, logical
Heat conduction diffuser plate, heating column and battery bag casing or heat transmission fin and battery bag casing are crossed, other part heat is derived, so as to
Further reduce battery temperature；Thermoplasticity Embedding Material generally has heat filling, it is also possible to further strengthen heat conduction, reduces heat
Impact, additionally, thermoplasticity Embedding Material has preferable toughness and ductility, it is possible to decrease mechanical stress, slows down mechanical shock.
Insulating heat-conductive oil is common artificial oil or one kind of refined mineral oil, for example：Alkyl benzene-type (benzenoid form) heat conduction
Oil, biphenyl and Biphenyl Ether eutectic conduction oil, organic silicone oil, the DowTherm conduction oils of typical brand such as DOW Chemical, in vehicle
During traveling, the heat conduction of the liquid concussion generation of conduction oil, convection current comprehensive function are conducive to battery outwards to radiate.
Further, the heat carrier is copper or ferrum heat carrier, or, heat carrier is that outer surface covers one layer of Jing anodic oxygen
After changing Passivation Treatment, the aluminum heat carrier or aluminium alloy heat carrier of the oxidation film layer with middle piezoelectricity dielectric strength；The heat conduction
Gripper shoe is copper coin or iron plate, or, heat transfer support plate is that outer surface covers one layer Jing after anodic oxidation passivation is processed, in having
The aluminium sheet or aluminium alloy plate of the oxidation film layer of piezoelectricity dielectric strength, its thickness is 0.5～20mm, double with what is supported with heat conduction
Weight function.Heat carrier, the material of heat transfer support plate select not only heat transfer efficiency high and easy to process；Aluminum after anodic oxidation
Or its alloy, hardness and wearability are improve, horniness anode oxide film fusing point is up to 2320K, breakdown voltage resistant up to 2000V,
With excellent electrical insulating property.
Further, supporting rib stiffener is provided between first heat exchanger plate and the second heat exchanger plate, the first heat is handed over
Change plate and the second heat exchanger plate fixes as one；Battery bag box bottom carries heat conduction Jia Qiang Zhu.Supporting rib stiffener is by low heat conduction
Material is made, or, low heat conduction material is provided between the contact surface of supporting rib stiffener and the first heat exchanger plate and the second heat exchanger plate
Backing strap piece, supporting rib stiffener only plays a part of to strengthen semiconductor heat electrical component mechanical strength；Heat conduction reinforcement not only increases electricity
The mechanical strength and resistance to impact of pond module box body, also increases the surface area of battery case, accelerates battery modules tank surface
Heat transfer effect.
Further, between first heat exchanger plate and heat transfer support plate, the second heat exchanger plate and liquid thermal conductivity passage 7
It is close together by interface thermal conductive material layer between top；The interface thermal conductive material layer is with polyurethane, organosilicon, epoxy
Based on resin or acrylic acid, conducting adhesive glue-line of the thermal conductivity not less than 0.2W/mK；Or, first heat exchanger plate and
Second heat exchanger plate outer surface has the coat of metal, respectively with heat transfer support plate and liquid thermal conductivity channel roof by the company of welding
Connect.Interface thermal conductive material layer is with two effects：One is to ensure that the thermal conductive contact face between semiconductor heat electrical component and battery is filled
Point, it is to avoid the heat conduction obstruct that regional area is caused because of the air gap that the reasons such as roughness, unevenness, assembling are formed, two is boundary
Face thermal conductive material layer may also operate as being mechanically fixed and mitigating mechanical stress effect.
Further, the first heat exchanger plate 4 and the second heat exchanger plate 6 are ceramic mould electric insulation heat exchanger plate, and the p-type is hot
Figure of merit ZT=0.5～2.4 of electric arm and N-type thermoelectric arm.
According to paltie effect, the heat absorption of thermoelectric components cold end is Qc=2NsITc under preferable cooling condition, and hot junction heat release is
Qh=2NsITh, Qc is cold end caloric receptivity in formula, and N is thermoelectric arm logarithm, and s is Seebeck coefficient, and I is electric current, and Tc, Th are respectively
Cold end and hot-side temperature (K).Due to Joule heat and conduction effect comprehensive function in the middle of actual, cold end caloric receptivity Qc, electrical power
Qte, hot junction thermal discharge Qh are expressed as (H.Y.Zhang, Y.C.Mui, M.Tarin, Analysis of
thermoelectric cooler performance for high power electronic packages,Applied
Thermal Engineering 30,2010, pp.561-568):
In above-mentioned formula：ρ, k, G are respectively thermoelectric arm resistivity, heat conductivity and geometric parameter, be defined as area and
The ratio of height, Δ T is hot junction and cold-end temperature difference.
As can be seen here, the numerical value of Seebeck coefficient s is bigger, and thermoelectric arm heat conductivity k and electricalresistivityρ are less, then quasiconductor
Thermoelectric components work efficiency is higher, and nondimensional figure of merit ZT=s2T/k is also bigger (wherein T represents mean temperature).Pass through
Doped bismuth telluride alloy base material makes p-type and N-type semiconductor, by a p-type thermoelectric arm and a N-type thermoelectric arm metal water conservancy diversion
Plate is coupled together, and constitutes a basic thermoelectric unit of semiconductor cooler.Document has been delivered according to the Massachusetts Institute of Technology,
(Zhiting Tian,Sangyeop Lee,Gang Chen,Heat Transfer in Thermoelectric
Materials and Devices, ASME J Heat Transfer135,2013, pp.061605-1), Tellurobismuthite. ZT values can
0.5～1 or so is reached, and new Tellurobismuthite ./antimony telluride composite thermoelectric material ZT values are up to 2.4.In actual design, can basis
Thermoelectric components material, the temperature at cold and hot end, current range and need to control the caloric value of object, temperature and radiator structure to enter
Row optimization design.
Further, the liquid thermal conductivity passage is snakelike embedding tube passage or Pocket Machining passage, internal cooling liquid
For water-ethylene glycol combination cooling liquid.High efficient heat exchanging coefficient can be provided, the coefficient of heat transfer is up to hundreds of to up to ten thousand W/m2K, liquid is led
Passage of heat plate body surrounding is closely connected by welding, screw bolt reinforcing and battery bag casing, and semiconductor heat electrical component is installed at top
Second heat exchanger plate, can carry out good heat exchange with semiconductor heat electrical component, and in cooling mode will by external heat exchanger
Heat dissipation is in air.
The beneficial effects of the utility model are：
1st, ensure that battery works all the time in optimum temperature environment.Because hot weather adds exposure in sunshine, electricity
Pond temperature can reach 50-60 DEG C, directly initiates battery and is possible to cause thermal runaway, this utility model to freeze using thermoelectric components,
Overheated battery temperature can be down to below 40 DEG C of ambient temperature and reuse battery, greatly improve battery reliability and workability
Energy.
2nd, the heat exchange structure of direct contact type, heat exchange efficiency is high.Compare with the device of traditional kind of refrigeration cycle water tank, this reality
Directly thermoelectric components are arranged in into battery bottom and are freezed with new, reduce the centre of water tank refrigeration and pipeline loss of refrigeration capacity
Link, little power consumption, thermal response is fast, and system effectiveness is high, and another aspect waste heat discharge can pass through the very high Water-cooling circulating of the coefficient of heat transfer
And external heat exchanger, system effectiveness can further improve, and avoid heat exchanger from battery modules too close to cause the pre- thermal effect of battery
Should.
3rd, refrigeration, heating is integrated in one, compact conformation.This device can not only be freezed using thermoelectric components, in low temperature
Severe cold weather, the reverse electrified regulation of thermoelectric components, by extension fin structure arrangement can quickly plus thermal cell to 0 degree Celsius with
On, compact conformation, it is adaptable to Vehicular dynamic battery system.
Description of the drawings
A kind of preferred structure when Fig. 1 is the radiating fin vertically-arranged of this device faces perspective diagram
Fig. 2 be along Fig. 1 A-A to section view, another kind of preferred structure structure schematic diagram during radiating fin vertically-arranged
Fig. 3 be this device radiating fin it is horizontal when a kind of preferred structure face perspective diagram
Fig. 4 is that this device faces perspective diagram using a kind of preferred structure during heating column
Fig. 5 is the B-B direction section view close-up schematic view of Fig. 4
Fig. 6 is that the positive negative sense of unidirectional current when semiconductor heat electrical component freezes and temperature height change are illustrated
Fig. 7 is that the positive negative sense of unidirectional current when semiconductor heat electrical component is heated and temperature height change are illustrated
Fig. 8 is a kind of preferred structure of liquid thermal conductivity passage
Fig. 9 is that battery operation generates heat (single battery caloric value is in terms of 8W), and 50 DEG C of high-temperature battery is in the temperature for cooling down 600s
Degree develops computer artificial result
Figure 10 is under battery not ruuning situation, 50 DEG C of high-temperature battery is in the cooling temperature evolution Computer Simulation of 600 seconds
As a result
Figure 11 is Temperature Distribution computer artificial result of the high-temperature battery (50 DEG C) in cooling 600s (battery does not generate heat)
Figure 12 is low temperature battery (- 30 DEG C) after heating 600s, and the Temperature Distribution computer artificial result for placing 120s is (every
Individual battery-heating amount is 8W)
In Fig. 1～12：1 is battery modules, and 2 is heat transmission fin, and 3 is heat transfer support plate, and 4 is the first heat exchanger plate, and 5 are heat
Electric unit, 6 is the second heat exchanger plate, and 7 is liquid thermal conductivity passage, and 701 is groove, and 702 is water-cooled wing plate, and 8 is that heat conduction support is vertical
Plate, 9 is heat-conducting pad, and 10 is interface thermal conductive material layer, and 11 is heating column, and 12 is supporting rib stiffener, and 13 is heat conduction diffuser plate, 14
For inlet, 15 is liquid outlet, and 16 is battery bag casing, and 17 is phase-change material layers.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail.
It is shown as shown in Figure 1, Figure 3 and Figure 4, inside battery bag casing 16, from top to bottom sequentially it is close to configure battery modules 1,
Heat transfer support plate 3, semiconductor heat electrical component and liquid thermal conductivity passage 7, and the multiple heat carriers of even cloth, heat conduction in battery modules 1
Heat transfer support plate 3 is close in body bottom, forms leading for battery modules-heat carrier-semiconductor heat electrical component-liquid thermal conductivity passage formation
Heat passage, wherein：
Heat transfer support plate 3 is horizontal, and the inwall of battery bag casing 16 is close in its edge；
Semiconductor heat electrical component includes horizontal the first heat exchanger plate 4 and the second heat exchanger plate 6, and vertically-arranged is close to two
Several thermoelectric units 5 between person, it is some to p-type thermoelectric arm and N-type thermoelectricity that each thermoelectric unit 5 includes being electrically connected in series
Arm；Series/parallel electrical connection between thermoelectric unit 5；After the electrical connection of multiple semiconductor thermoelectric component series/parallels, its both positive and negative polarity again with
DC source electricity both positive and negative polarity connection outside battery bag casing 16；Also, the sense of current of semiconductor heat electrical component is allowed hand over.
Supporting rib stiffener 12 is provided between first heat exchanger plate 4 and the second heat exchanger plate 6, by the first heat exchanger plate 4 and
Two heat exchanger plates 6 fix as one；The bottom of battery bag casing 16 adds strong Zhu with heat conduction；
Heat carrier be outer surface cover one layer Jing anodic oxidation passivation process after, the oxide-film with middle piezoelectricity dielectric strength
The aluminum heat carrier or aluminium alloy heat carrier of layer；Heat transfer support plate 3 be outer surface cover one layer Jing anodic oxidation passivation process after,
The aluminium sheet or aluminium alloy plate of the oxidation film layer with middle piezoelectricity dielectric strength, its thickness is 0.5～20mm.
Liquid thermal conductivity passage 7 is located in the bottom of battery bag casing 16, liquid thermal conductivity passage 7 and contains heat-conducting liquid, correspondence liquid
The two ends port of body passage of heat 7, opens up inlet 14 and liquid outlet 15 on battery bag casing 16, and liquid thermal conductivity passage 7 leads to
The pump machine for crossing battery bag casing exterior arrangement is connected with external heat exchanger.
Refrigeration mode is performed in hot weather, due to paltie effect, first heat exchange on semiconductor heat electrical component top
Plate 4 is cold plate, below its rapid drop in temperature to ambient temperature, is radiated by heat transfer support plate 3, heat carrier, can be by battery
Temperature is reduced to below ambient temperature, and the second heat exchanger plate 6 of semiconductor heat electrical component bottom is heat sink.
Heating mode is switched under cold low temperature environment, the reversion of semiconductor heat electrical component both positive and negative polarity causes half after energization
First heat exchanger plate on conductor thermoelectric components top is changed into heating plate, is heated by heat transfer support plate, heat carrier, can be by battery temperature
Degree rises so as to reach normal operating temperature range, and the second heat exchanger plate of semiconductor heat electrical component bottom is absorber plate,
If it is higher than ambient temperature that the second heat exchanger plate temperature is equal to, pump office closes；If the second heat exchanger plate temperature is less than environment temperature
Degree, liquid thermal conductivity passage is opened, and the second heat exchanger plate absorbs amount of heat by the heat-conducting liquid in liquid thermal conductivity passage, and leads to
Cross the first heat exchanger plate, heat transfer support plate and add thermal cell.
As shown in Figure 1, Figure 3, heat carrier is the rectangular plate-like heat transmission fin 2 parallel to battery configuration, and heat transmission fin 2 is extruded
Molding, or fixed by welding, splicing between heat transfer support plate 3, thickness is 0.1～10mm, forms battery-heat conduction wing
The thermal dissipating path of piece-heat transfer support plate-thermoelectric components-liquid cooling system.In Fig. 1, multiple square brick shape batteries of battery modules 1 are in column
Vertically-arranged, filling phase-change material layers 17 in the battery bag casing 16 of the top of heat transfer support plate 3, the battery stack in Fig. 3 is horizontal.
In Fig. 3, the top upright parallel of heat transfer support plate 3 configures 3 row's heat conduction supporting vertical plates 8, and the lower end of heat conduction supporting vertical plate 8 is tight
Two adjacent rows' heat conduction supporting vertical plate (8) are close at the battery two ends of the patch layer stackup of heat transfer support plate 3,3, between adjacent two layers battery
A piece of heat transmission fin 2 is configured, heat transmission fin 2 is close to adjacent battery, and left and right two ora terminalis is close to two adjacent row's heat conduction and supports vertical
Plate 8.
As shown in figure 1, a piece of heat transmission fin 2 of homonymy correspondence configuration of each column battery, as shown in Fig. 2 two panels heat transmission fin 2
Between configure one piece of battery, heat transmission fin 2 is close to adjacent battery, and heat transfer support plate 3 is close in lower end.
As shown in figure 1, configuring heat-conducting pad 9, its size and battery and heat conduction between the binding face of battery and heat transmission fin 2
The size of the binding face of fin 2 matches, heat-conducting pad 9 be graphite heat-conducting fin, Graphene conducting strip or organosilicon conducting strip,
Heat-conducting pad 9 is connected respectively by gum with heat transmission fin 2 and battery.
As shown in Figures 4 and 5, heat carrier includes being in the form of a column the heating column 11 of vertical configuration and the heat conduction diffuser plate of landscape configuration
13, multiple cylindrical batteries of the battery modules 1 are in rectangular vertical configuration, are closely sleeved on the perforate of heat conduction diffuser plate 13
Interior, the upper end of heating column 11 is fastened on the bottom of heat conduction diffuser plate 13, and heat transfer support plate 3 is close in lower end, and battery is located at four heating columns
At 11 square central for surrounding, battery is not contacted with heating column, the battery bag between heat transfer support plate 3 and heat conduction diffuser plate 13
Filling phase-change material layers 17 in casing 16.
As shown in figure 1, between the first heat exchanger plate 4 and heat transfer support plate 3, the second heat exchanger plate 6 and liquid thermal conductivity passage 7
It is close together by interface thermal conductive material layer 10 between top；The interface thermal conductive material layer 10 be with polyurethane, organosilicon,
Based on epoxy resin or acrylic acid, conducting adhesive glue-line of the thermal conductivity not less than 0.2W/mK.
Liquid thermal conductivity passage 7 as shown in Figure 8 is Pocket Machining passage, with water-cooled fin 702 and groove 701, conduit
Width dimensions between 10mm-0.3mm, with larger heat exchange area and good exchange capability of heat.
As shown in figs. 6-7, thermoelectric unit is connected into p-type and N-type thermoelectric arm by some, several thermoelectric units are serial/parallel
It is unified into semiconductor heat electrical component.As shown in fig. 6, under refrigeration work pattern, additional power source positive pole is connected with thermoelectric components negative pole,
Electronics to electric current opposite direction is migrated, and forms refrigeration mode, and the first heat exchanger plate 4 is cold end (temperature is Tc), the second heat exchanger plate 6
For hot junction (temperature is Th)；As shown in fig. 7, semiconductor heat electrical component is under heating work pattern, additional power source positive pole and thermoelectricity
Component positive pole is connected, and forms heating mode.
Figure 10, Figure 11 are the calculating of temperature evolution of the high-temperature battery (50 DEG C) when semiconductor heat electrical component is cooled down 600 seconds
Machine simulation result, battery does not start, and caloric value is zero.Using 2x3 array semi-conductor thermoelectric components, each thermoelectric components size is
50mmx50mm, maximum caloric value Qcmax=310W, including 128 pairs of thermoelectric arms, battery modules include that 12 soft-package batteries are vertical
Place, each battery size 10cmx12cm x1cm, and be brought into close contact with fin plate.Consider 40 DEG C of temperature, battery is quick-fried because of vehicle body
Solarization reaches 50 DEG C, and under 8A electric current refrigeration work patterns, edge battery and intermediate cell temperature progressively decline, and drop in 600s
21.9 DEG C and 24.5 DEG C, can normally start trouble free service.Figure 10 shows that high-temperature battery (50 DEG C) is cooled down in thermoelectric components
The Temperature Distribution computer artificial result (battery does not start) of 600s.
As shown in figure 9, same battery module structure, if opening battery, single electricity in thermoelectric components refrigeration moment
Pond caloric value is 8W, 12 battery-heating 96W, and temperature still progressively declines under thermoelectric components 8A refrigeration mode situations, in system
When cold 600 seconds, edge battery and intermediate cell temperature progressively decline, and in 600s 34 DEG C and 29 DEG C are dropped to, and are not affecting battery just
Often operation.
As shown in figure 12, (- 30 DEG C) under low temperature environment, thermoelectric components heating mode is opened, battery temperature gradually rises,
600s is heated in thermoelectric components, 120s is stood afterwards, it can be seen that battery temperature substantially on 0 DEG C, can normally start.
Claims (9)
1. a kind of battery modules heat management device based on pyroelectric effect, it is characterised in that：
It is internal in battery bag casing (16), from top to bottom sequentially it is close to configure battery modules (1), heat transfer support plate (3), quasiconductor
Thermoelectric components and liquid thermal conductivity passage (7), and the multiple heat carriers of even cloth in battery modules (1), heat conduction is close in heat carrier bottom
Gripper shoe (3), wherein：
Heat transfer support plate (3) is horizontal, and battery bag casing (16) inwall is close in its edge；
Semiconductor heat electrical component includes horizontal the first heat exchanger plate (4) and the second heat exchanger plate (6), and vertically-arranged is close to two
Several thermoelectric units (5) between person, each thermoelectric unit (5) is some to p-type thermoelectric arm and N-type including what is be electrically connected in series
Thermoelectric arm, series/parallel electrical connection between thermoelectric unit (5)；The both positive and negative polarity of single semiconductor heat electrical component directly with battery lodge
The outside DC source both positive and negative polarity electrical connection of body (16)；Or, after multiple semiconductor thermoelectric component series/parallel electrical connections, it is just
Negative pole DC source electricity both positive and negative polarity outside with battery bag casing (16) again is connected；Also, the electric current side of semiconductor heat electrical component
To allowing hand over；
Liquid thermal conductivity passage (7) contains heat-conducting liquid, correspondence in battery bag casing (16) bottom, liquid thermal conductivity passage (7)
The two ends port of liquid thermal conductivity passage (7), opens up inlet (14) and liquid outlet (15) on battery bag casing (16), and liquid is led
The passage of heat (7) is connected by the pump machine of battery bag casing exterior arrangement with external heat exchanger.
2. the battery modules heat management device based on pyroelectric effect according to claim 1, it is characterised in that：The heat conduction
Body is the rectangular plate-like heat transmission fin (2) parallel to battery configuration, and multiple square brick shape battery stacks of the battery modules (1) are horizontal
Put or vertically-arranged in column：
If battery stack is horizontal, heat transfer support plate (3) top upright parallel configures multiple rows of heat conduction supporting vertical plate (8), leads
Heat transfer support plate (3) is close in hot supporting vertical plate (8) lower end, and two adjacent row's heat conduction supporting vertical plates are close at the battery two ends of stacking
(8) a piece of heat transmission fin (2), is configured between adjacent two layers battery, or, one layer of battery is configured between two panels heat transmission fin (2),
Heat transmission fin (2) is close to adjacent battery, and left and right two ora terminalis is close to two adjacent rows' heat conduction supporting vertical plate (8)；
If battery vertically-arranged in column, configures a piece of heat transmission fin (2) between two row batteries, or, between two panels heat transmission fin (2)
One piece of battery of configuration, or, a piece of heat transmission fin (2) of homonymy correspondence configuration of each column battery, heat transmission fin (2) is close to adjacent
It is close to heat transfer support plate (3) in battery, lower end；
Heat-conducting pad (9) is configured or not configured between the binding face of battery and heat transmission fin (2), if configuration heat-conducting pad
(9), the size of heat-conducting pad (9) matches with battery with the size of the binding face of heat transmission fin (2), and heat-conducting pad (9) is stone
Black conducting strip, Graphene conducting strip or organosilicon conducting strip, heat-conducting pad (9) by gum respectively with heat transmission fin (2) and
Battery is connected.
3. the battery modules heat management device based on pyroelectric effect according to claim 1, it is characterised in that：The heat conduction
Body includes being in the form of a column the heating column (11) of vertical configuration and the heat conduction diffuser plate (13) of landscape configuration, the battery modules (1)
Multiple cylindrical batteries are in rectangular vertical configuration, are closely sleeved in the perforate of heat conduction diffuser plate (13), heating column (11) upper end
It is fastened on heat conduction diffuser plate (13) bottom, heat transfer support plate (3) is close in lower end, battery is located at surrounding for four heating columns (11)
At square central, battery is not contacted with heating column.
4. the battery modules heat management device based on pyroelectric effect according to claim 2 or 3, it is characterised in that：Institute
State and fill in the battery bag casing (16) above heat transfer support plate (3) phase-change material layers (17), or Embedding Material layer, or absolutely
Edge conduction oil；Or, filling phase transformation in the battery bag casing (16) between the heat transfer support plate (3) and heat conduction diffuser plate (13)
Material layer (17), or Embedding Material layer, or insulating heat-conductive oil；
The phase-change material layers are paraffin phase change material layer or fatty acid phase-change material layers of the phase transition temperature at 20～80 DEG C；
The Embedding Material layer is organosilicon, urethane material of the thermal conductivity more than 0.2W/mK；
The insulating heat-conductive oil is organic conduction oil of the thermal conductivity more than 0.05W/mK.
5. the battery modules heat management device based on pyroelectric effect according to claim 1, it is characterised in that：The heat conduction
Body is copper or ferrum heat carrier, or, heat carrier is that outer surface covers one layer Jing after anodic oxidation passivation is processed, exhausted with middle piezoelectricity
The aluminum heat carrier or aluminium alloy heat carrier of the oxidation film layer of edge intensity；The heat transfer support plate (3) is copper coin or iron plate, or
Person, heat transfer support plate (3) for outer surface cover one layer Jing anodic oxidation passivation process after, the oxidation with middle piezoelectricity dielectric strength
The aluminium sheet or aluminium alloy plate of film layer, its thickness is 0.5～20mm.
6. the battery modules heat management device based on pyroelectric effect according to claim 1, it is characterised in that：Described first
Supporting rib stiffener (12) is provided between heat exchanger plate (4) and the second heat exchanger plate (6), the first heat exchanger plate (4) and second is warm
Power board (6) fixes as one；Battery bag casing (16) bottom adds strong Zhu with heat conduction.
7. the battery modules heat management device based on pyroelectric effect according to claim 1, it is characterised in that：Described first
Between heat exchanger plate (4) and heat transfer support plate (3), between the second heat exchanger plate (6) and liquid thermal conductivity passage (7) top boundary is passed through
Face thermal conductive material layer (10) is close together；The interface thermal conductive material layer (10) be with polyurethane, organosilicon, epoxy resin or
Based on acrylic acid, conducting adhesive glue-line of the thermal conductivity not less than 0.2W/mK；Or, first heat exchanger plate (4) and second
Heat exchanger plate (6) outer surface has the coat of metal, respectively with heat transfer support plate (3) and liquid thermal conductivity passage (7) top by weldering
Connect in succession.
8. the battery modules heat management device based on pyroelectric effect according to claim 1, it is characterised in that：Described first
Heat exchanger plate (4) and the second heat exchanger plate (6) are ceramic mould electric insulation heat exchanger plate, the p-type thermoelectric arm and N-type thermoelectric arm
Figure of merit ZT=0.5～2.4.
9. the battery modules heat management device based on pyroelectric effect according to claim 1, it is characterised in that：The liquid
Passage of heat (7) is snakelike embedding tube passage or Pocket Machining passage, and heat-conducting liquid is water-ethylene glycol combination cooling liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621169792.6U CN206134883U (en) | 2016-11-02 | 2016-11-02 | Battery module heat pipe reason device based on pyroelectric effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621169792.6U CN206134883U (en) | 2016-11-02 | 2016-11-02 | Battery module heat pipe reason device based on pyroelectric effect |
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| CN206134883U true CN206134883U (en) | 2017-04-26 |
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| CN201621169792.6U Active CN206134883U (en) | 2016-11-02 | 2016-11-02 | Battery module heat pipe reason device based on pyroelectric effect |
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| CN106374162A (en) * | 2016-11-02 | 2017-02-01 | 上海工程技术大学 | Battery module heat management method and apparatus based on thermo-electric effect |
| CN107579185A (en) * | 2017-10-16 | 2018-01-12 | 吉林大学 | Circle rib heat conduction column battery pack |
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| CN106374162A (en) * | 2016-11-02 | 2017-02-01 | 上海工程技术大学 | Battery module heat management method and apparatus based on thermo-electric effect |
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| CN110911779A (en) * | 2019-12-03 | 2020-03-24 | 西安电子科技大学芜湖研究院 | Lithium battery pack mixing heat dissipation device |
| CN110911779B (en) * | 2019-12-03 | 2022-08-02 | 西安电子科技大学芜湖研究院 | Lithium battery pack mixing heat dissipation device |
| CN113718309B (en) * | 2021-09-01 | 2023-12-15 | 天长市京发铝业有限公司 | Aluminum plate anodic oxidation equipment |
| CN113718309A (en) * | 2021-09-01 | 2021-11-30 | 天长市京发铝业有限公司 | Aluminum plate anodic oxidation equipment |
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