CN103985831B - A kind of thermal-control battery case and temperature control method thereof - Google Patents
A kind of thermal-control battery case and temperature control method thereof Download PDFInfo
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- CN103985831B CN103985831B CN201410208523.5A CN201410208523A CN103985831B CN 103985831 B CN103985831 B CN 103985831B CN 201410208523 A CN201410208523 A CN 201410208523A CN 103985831 B CN103985831 B CN 103985831B
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The present invention proposes a kind of thermal-control battery case and temperature control method thereof, this thermal-control battery case comprises controller, temperature control system and temperature sensor, controller controls temperature control system according to temperature conditions and is operated in radiating mode, one of heating mode and equalization temperature pattern, temperature control system comprises N number of heat-conducting plate, water pump, cooling water tank, isocon, flow divider, return duct, frequency converter and induction heater, first outlet of flow divider connects the entrance of cooling water tank, second outlet of flow divider connects the entrance of water pump, when temperature control system is operated in radiating mode, liquid imports cooling water tank by the first outlet of flow divider, when temperature control system is operated in heating mode and equalization temperature pattern, liquid is by the second outlet flow back water pump of flow divider.The present invention uses conduction heat transfer principle, can be designed to complete seal case, and because adopting conduction heat transfer, heat transfer efficiency is high, regulates temperature block.
Description
Technical field
The present invention relates to a kind of battery case, be specifically related to one and realize automatic temperature-adjusting control battery case and temperature control method thereof.
Background technology
At present, through demonstrating running for many years, pure electric automobile technology improves constantly, it is clear gradually that initial stage fails Attention question, in order to ensure electrokinetic cell safety, reliably working, temperature control must be carried out to battery case, electrokinetic cell is always worked in suitable temperature range.
At present the cross-ventilated mode of general employing is controlled to power battery box temperature and carry out temperature adjustment, to control battery the temperature inside the box, but adopt air convection to carry out temperature to control to need to introduce air from case, difficulty is brought to the protection of battery case, battery case requirement of shelter is IP67, by the scheme of drawing air temperature control outward, battery case is difficult to properly protect.Therefore, find one and can either carry out battery case protection, can realize again temperature control object thermal-control battery case is the technical problem needing solution badly.
Summary of the invention
In order to overcome the defect existed in above-mentioned prior art, the object of this invention is to provide a kind of thermal-control battery case and temperature control method thereof, battery case closed design, be conducive to protecting, according to battery the temperature inside the box to battery case heat radiation or heating, temperature can be realized and controls object simultaneously.
In order to realize above-mentioned purpose of the present invention, according to a first aspect of the invention, the invention provides a kind of thermal-control battery case, it comprises the closed box that inside is placed with battery, lay respectively at M temperature sensor, controller and temperature control system in described casing, a described M temperature sensor is connected with controller respectively, and described controller controls temperature control system according to temperature conditions and is operated in radiating mode, one of heating mode and equalization temperature pattern, and described M is positive integer, described temperature control system comprises N number of heat-conducting plate, water pump, cooling water tank, isocon, flow divider, return duct, frequency converter and induction heater, described N is positive integer, and described controller is connected with the control signal input of water pump, flow divider and frequency converter respectively, and described controller controls the work of water pump, flow divider and frequency converter respectively, the outlet of described cooling water tank is connected with water pump, described water delivery side of pump is connected with the entrance of induction heater, the outlet of described induction heater is connected with the entrance of N number of heat-conducting plate respectively by isocon, the outlet of described N number of heat-conducting plate is connected with the entrance of flow divider respectively by return duct, first outlet of described flow divider connects the entrance of cooling water tank, second outlet of described flow divider connects the entrance of water pump, when temperature control system is operated in radiating mode, liquid imports cooling water tank by the first outlet of flow divider, when temperature control system is operated in heating mode and equalization temperature pattern, liquid is by the second outlet flow back water pump of flow divider, described frequency converter is connected with induction heater, and when temperature control system is operated in radiating mode, described frequency converter inputs alternating current to induction heater, controls the work of described induction heater.
What existing battery case adopted is air cooling system, ambient, cool air is imported in battery case, hot-air is discharged power brick, reach to battery case cooling object, therefore battery case need design air inlet and air outlet, is unfavorable for the protection of power brick self, is difficult to reach IP67 degree of protection.What this scheme was used is convective heat transfer principle, and heat transfer efficiency is low, is difficult to carry out the adjustment of power brick temperature fast.Thermal-control battery case of the present invention uses conduction heat transfer principle, and heat transfer efficiency is high, regulates temperature block.Because adopting conduction heat transfer, power brick is without the need to design into and out of air port, and can be designed to complete seal case, himself degree of protection can reach IP67, except can cool batteries case can also heating battery case, better meet electric automobile at the torrid zone, frigid zone applying working condition.
Temperature of the present invention regulates various informative, by being provided with temperature sensor in battery case, to detect in battery case temperature everywhere, when the temperature inside the box is too high, during the unequal situation of too low or temperature, automatically the work of start-up temperature regulating system can carry out temperature control, when the temperature inside the box is in normal range (NR), humidity control system quits work, and saves electric energy.
In a preferred embodiment of the present invention, described casing inner air and outer air isolation, described casing comprises battery case body and battery box cover, battery inner box is provided with in casing, be provided with array in described battery inner box, battery case body is provided with Low-voltage socket and high-tension terminal, described array is connected with high-tension terminal with Low-voltage socket respectively by circuit, described casing is metal material, and described battery inner box is heat-conducting insulation material.
Battery case metal of the present invention is made, battery inner box heat-conducting insulation material, can conduct heat well and insulate.On battery case body, be provided with Low-voltage socket and high-tension terminal simultaneously, high pressure and low-voltage power supply demand can be met simultaneously.
In a preferred embodiment of the present invention, a described M temperature sensor is evenly arranged on the inner bottom surface of casing, and in the horizontal, the distance between adjacent two temperature sensors is equal, and in the vertical, the distance between adjacent two temperature sensors is also equal.Accurately can detect the temperature height in Battery case and temperature difference size.
In a preferred embodiment of the present invention, described heat-conducting plate fits on the inwall of described casing, described heat-conducting plate indoor design has P bar water channel, mixed flow case is respectively arranged with at the entrance and exit place of heat-conducting plate inner two ends P bar water channel, entrance mixed flow case is connected with the entrance of P bar water channel respectively, outlet mixed flow case is connected with the outlet of P bar water channel respectively, and described P is positive integer.
This heat-conducting plate has conduction efficiency high, and self can carry out equalized temperature.
In a preferred embodiment of the present invention, described flow divider comprises valve seat, spool, valve rod, driving gear, driven gear, motor and valve guard, described motor is connected with driving gear, drive driving gear rotates, described driving gear is engaged with the gear teeth of driven gear, valve rod one end is provided with spool, the other end is connected with driven gear, valve body is designed with water inlet and two delivery ports, controller controls electric machine rotation, band movable valve plug moves, poppet head is provided with a cylindrical seal ring, spool moves stop position at valve seat two ends, when first end, block the first delivery port, liquid flows into valve seat from water inlet, flow out from the second delivery port, when changing mode of operation, controller drive motors rotates, by master, driven gear band movable valve plug is by moving left the second end, block the second delivery port, liquid flows into valve seat by water inlet, flow out from the first delivery port.
This flow divider structure is simple, reliable operation, by using flow divider, achieves the demand of multiple-working mode.
In a preferred embodiment of the present invention, described induction heater comprises hollow heat-generating pipe, insulated heat cover, induction coil and insulating case, the outside of described heat-generating pipe is coated with insulated heat cover, induction coil is wound with in insulated heat cover outside, be coated with insulating case in induction coil outside, induction coil is connected with frequency converter, and frequency converter imports high frequency alternating current, induction coil produces alternating magnetic field and forms eddy current on the surface of heat-generating pipe, and liquid flows through heat-generating pipe and heated.Make heat-generating pipe produce eddy heating for heating by induction coil, its efficiency ratio resistance efficiency of heating surface is high, and electrical isolation between heat-generating pipe and main circuit, can avoid electric leakage, fail safe is good.
In another preferred embodiment of the present invention, described heat-generating pipe inwall is designed with flow-disturbing silk, and described flow-disturbing silk is helicla flute.When liquid flows through heat-generating pipe, liquid stream, under the effect of flow-disturbing silk, produces and rotates, flow through heat-generating pipe, can improve heat exchanger effectiveness between liquid and heat-generating pipe under centrifugal action near tube wall.
In another preferred implementation of the present invention, induction heater also comprises collection chinaware, and described collection chinaware is coated on induction coil outside, and described collection chinaware is made up of permeability magnetic material.Collection chinaware reduces magnetic circuit reluctance and increases vortex power, and the magnetic line of force is preferentially through magnetic conduction substance, and induction coil outside adds high magnetic conduction substance can shorten the aerial crossing length of magnetic circuit, increases permeability, improves magnetic flux, thus improves heat-generating pipe surface eddy power.
In order to realize above-mentioned purpose of the present invention, according to a second aspect of the invention, the invention provides a kind of temperature control method of thermal-control battery case, comprise the steps:
S1, temperature sensor detects the temperature in battery case, and temperature signal is transferred to controller;
S2, controller compares, judge temperature whether in normal range (NR), if in normal range (NR), then not start-up temperature regulating system, returns step S1, when temperature exceeds the value of setting, start-up temperature regulating system works, and humidity control system specifically comprises three kinds of mode of operations:
When the temperature inside the box is higher than preset temperature value, controller makes temperature control system be operated in radiating mode, controller starts pump working, cooling fluid is extracted out from cooling water tank, be transported in each heat-conducting plate, the heat of heat-conducting plate is taken away through return duct by the cooling fluid flowing through heat-conducting plate, and flow divider second exports closed, and liquid is got back to cooling water tank through the first outlet of flow divider and cooled;
When the temperature inside the box is lower than preset temperature value, controller makes temperature control system be operated in heating mode, controller starts pump working, start frequency converter work simultaneously, high-frequency current is transported to induction heater by frequency converter, and induction heater generates heat, and the liquid flowing through induction heater sends heat to battery case by heat-conducting plate heat, flow divider first exports closed, and the liquid that liquid flows through heat-conducting plate gets back to water pump through the second outlet of flow divider.
When occurring in case that local temperature is too high, when exceeding default temperature gap, controller makes temperature control system be operated in equalization temperature pattern, controller starts pump working, is extracted out by liquid, be transported in each heat-conducting plate from cooling water tank, localized hyperthermia is located heat and takes away and be distributed to other positions by the liquid flowing through heat-conducting plate, flow divider first exports closed, and the liquid that liquid flows through heat-conducting plate gets back to water pump through the second outlet of flow divider, continues to circulate.
Temperature control method of the present invention has three kinds of working methods, can not only heat up, and cooling, can also regulate temperature is unbalanced.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of thermal-control battery case in a kind of preferred implementation of the present invention;
Fig. 2 is the schematic diagram of thermoregulating system of the present invention;
Fig. 3 is the structural representation of temperature sensor in a kind of preferred implementation of the present invention;
Fig. 4 is the structural representation of heat-conducting plate in a kind of preferred implementation of the present invention;
Fig. 5 is the structural representation of flow divider in a kind of preferred implementation of the present invention;
Fig. 6 is the structural representation of liquid induction heater in a kind of preferred implementation of the present invention;
Fig. 7 is the structural representation of cooling water tank in a kind of preferred implementation of the present invention.
Reference numeral:
1 heat-conducting plate; 2 isocons; 3 induction heaters; 4 water pumps; 5 cooling water tanks; 6 flow dividers;
7 return ducts; 8 battery box covers; 9 battery cases; 10 frequency converters; 11 controllers; 12 Low-voltage sockets;
13 battery case service switch; 14 high-tension terminals; 15 thermal insulation layers; 16 battery inner boxs; 17 batteries;
18 temperature sensors; 1A water channel; 1B mixed flow case; 31 flow-disturbing silks; 32 collection chinawares; 33 guard shields;
34 insulating cases; 35 induction coils; 36 insulated heat covers; 37 heat-generating pipes; 51 water inlet pipes; 52 lower headers;
53 lids; 54 water filling ports; 55 upper tanks; 56 condenser pipes; 57 outlet pipes; 58 fin; 61 valve seats;
62 spools; 63 valve rods; 64 driving gears; 65 driven gears; 66 motors; 67 valve guards;
68 water inlets; 691 first delivery ports; 692 second delivery ports.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
The invention provides a kind of thermal-control battery case 9, it comprises the closed box that inside is placed with battery, the end view that Fig. 1 (a) is casing, the vertical view cutaway drawing that Fig. 1 (b) is casing, casing inner air and outer air isolates not convection current, be conducive to battery protection, casing comprises battery case body and battery box cover 8, battery inner box 16 is provided with in casing, the array that battery 17 is formed is provided with in battery inner box 16, battery case body is provided with Low-voltage socket 12 and high-tension terminal 14, array is connected with high-tension terminal 14 with Low-voltage socket 12 respectively by circuit, this battery case can either provide high-tension electricity also can provide low tension.In the present embodiment, battery case 9 is made of metal, battery inner box 16 heat-conducting insulation material, can conduct heat well and insulate.
In the present embodiment, fill faying face gap with thermal conductive insulation glue between battery 17 and battery inner box 16, between battery inner box 16 and the battery case 9 of its outside in battery case 9, heat conduction efficiency is higher.
In the present embodiment, battery case body and battery box cover 8 cover rear airtight, battery case service switch can control the folding of battery box cover 8, specifically can adopt existing electronic switch, also can adopt existing mechanical switch, battery case can be opened by battery case service switch 13 and carry out maintenance process.
In the present embodiment, this thermal-control battery case 9 also comprises controller 11, temperature control system and the M temperature sensor 18 laid respectively in casing, this M temperature sensor 18 is connected with controller 11 respectively, controller 11 controls temperature control system according to temperature conditions and is operated in radiating mode, one of heating mode and equalization temperature pattern, wherein, M is positive integer.
In the present embodiment, M is 20, as shown in Figure 3, arranges 20 high-accuracy temperature sensors 18, to detect temperature in battery case 9 in battery case 9.These 20 temperature sensors 18 are evenly arranged on the inner bottom surface of casing, and in the horizontal, the distance between adjacent two temperature sensors 18 is equal, and in the vertical, the distance between adjacent two temperature sensors 18 is also equal.Set temperature transducer 18 in battery case 9, to detect in battery case 9 temperature be transferred to controller 11 everywhere, when the temperature inside the box is too high, too low or temperature unequal situation time, controller 11 automatically start-up temperature regulating system work carries out temperature control, when the temperature inside the box is in normal range (NR), humidity control system quits work, and saves electric energy.
Fig. 2 (a) is the structural representation of temperature control system in a kind of preferred implementation of the present invention, Fig. 2 (b) is the principle schematic of temperature control system Fig. 2 (a) Suo Shi, as shown in Figure 2, temperature control system comprises N number of heat-conducting plate 1, water pump 4, cooling water tank 5, isocon 2, flow divider 6, return duct 7, frequency converter 10 and induction heater 3, wherein, N is positive integer, and controller 11 is connected with the control signal input of water pump 4, flow divider 6 and frequency converter 10 respectively, and controller 11 controls the work of water pump 4, flow divider 6 and frequency converter 10 respectively.The outlet of cooling water tank 5 is connected with water pump 4, the outlet of water pump 4 is connected with the entrance of induction heater 3, the outlet of induction heater 3 is connected with the entrance of N number of heat-conducting plate 1 respectively by isocon 2, the outlet of N number of heat-conducting plate 1 is connected respectively by the entrance of return duct 7 with flow divider 6, first outlet of flow divider 6 connects the entrance of cooling water tank 5, second outlet of flow divider 6 connects the entrance of water pump 4, when temperature control system is operated in radiating mode, liquid imports cooling water tank 5 by the first outlet of flow divider 6, when temperature control system is operated in heating mode and equalization temperature pattern, liquid is by the second outlet flow back water pump 4 of flow divider 6, frequency converter 10 is connected with induction heater 3, and when temperature control system is operated in radiating mode, frequency converter 10 inputs alternating current to induction heater 3, controls the work of induction heater 3.Temperature of the present invention regulates various informative, by being provided with temperature sensor 18 in battery case 9, to detect in battery case 9 temperature everywhere, when the temperature inside the box is too high, during the unequal situation of too low or temperature, automatically the work of start-up temperature regulating system can carry out temperature control, when the temperature inside the box is in normal range (NR), humidity control system quits work, and saves electric energy.
In the present embodiment, controller adopts MC9S08DZ60 microprocessor controls, possesses CAN communication ability, and entire car controller forms complex control system.A signal input part of each temperature sensor connection control device, the motor of induction heater, water pump and flow divider is connected with an output of controller respectively.Specifically can make but be not limited to, a signal input part in temperature sensor connection control device PTA pin group, PTB pin group, PTC pin group, PTD pin group, the motor of induction heater, water pump and flow divider is connected with an output in controller PTD pin group respectively.
In the present embodiment, heat-conducting plate 1 fits on the inwall of casing, heat-conducting plate 1 indoor design has P bar water channel 1A, mixed flow case 1B is respectively arranged with at the entrance and exit place of heat-conducting plate 1 inner two ends P bar water channel 1A, entrance mixed flow case 1B is connected with the entrance of P bar water channel 1A respectively, outlet mixed flow case 1B is connected with the outlet of P bar water channel 1A respectively, and wherein, P is positive integer.In a kind of execution mode be more preferably, as shown in Figure 4, heat-conducting plate 1 heat-conducting glue is close on battery case 9 bottom surface, and effect carries out heat exchange with battery case 9.Heat-conducting plate 1 is made up of heat-conducting metal, plate is thin designs three water channel 1A therein, liquid stream sluice 1A and heat-conducting plate 1 carry out heat exchange, mixed flow case 1B is designed with at heat-conducting plate 1 two ends, concentrate when liquid flows into mixed flow case 1B, the liquid that three water channel 1A flow out can be carried out mixing and temperature is basically identical, reach monolithic heat-conducting plate 1 everywhere temperature be substantially consistent.This heat-conducting plate 1 has conduction efficiency high, and self can carry out equalized temperature.The technical program, according to heat transfer general principle, sets up high heat transfer path between battery and heat-conducting plate 1, spread out of fast by heat or import into, to reach control the temperature inside the box.
In the present embodiment, flow divider 6 comprises valve seat 61, spool 62, valve rod 63, driving gear 64, driven gear 65, motor 66 and valve guard 67.Motor 66 is connected with driving gear 64, and drive driving gear 64 to rotate, driving gear 64 is engaged with the gear teeth of driven gear 65, and valve rod 63 one end is provided with spool 62, and the other end is connected with driven gear 65.Valve body is designed with water inlet and two delivery ports, controller 11 controls motor 66 and rotates, band movable valve plug 62 moves, spool 62 head is provided with a cylindrical seal ring, spool 62 moves stop position at valve seat 61 two ends, when first end, block the first delivery port 691, liquid flows into valve seat 61 from water inlet 68, flow out from the second delivery port 692, when changing mode of operation, controller 11 drive motors 65 rotates, by driving gear 64, driven gear 65 is with movable valve plug 62 by moving left the second end, it is inner that valve rod 63 returns to valve guard 67, block the second delivery port 692, liquid flows into valve seat 61 by water inlet 68, flow out from the first delivery port 691.
As shown in Figure 5, flow divider 6 of the present invention acts on is exactly return duct 7 is flowed the liquid come to shunt.Temperature control system has three kinds of mode of operations, radiating mode, heating mode, balanced mode, and only just the liquid of backflow is imported cooling water tank 5 at radiating mode, withdrawing fluid is directly flowed to isocon 2 and gets around cooling water tank 5 by heating mode, balanced mode.
Valve body is designed with water inlet and two delivery ports, spool 62 moves in valve seat 61, controller 11 controls motor 66 and rotates, band movable valve plug 62 moves, spool 62 head is provided with a cylindrical seal ring, spool 62 moves stop position at valve seat 61 two ends, when left end, block delivery port, liquid flows into valve seat 61 from water inlet 68, flow out from the second delivery port 692, when changing mode of operation, controller 11 drive motors 66 rotates, by driving gear 64, driven gear 65 is with movable valve plug 62 by moving left right-hand member, block the second delivery port 692, liquid flows into valve seat 61 by water inlet 68, flow out from the first delivery port 691, realize the change of current.
Motor 66 is when in valve seat 61, cylindrical hole moves to termination, and because motor 65 produces stall, electric current can sharply increase, and controller 11 detects that electric current just sends instruction disable motor 66 after increasing, therefore without the need to designing spool 62 position transducer.This flow divider 6 structure is simple, and reliable operation, can meet the demand of multiple-working mode.
In the present embodiment, as shown in Figure 6, induction heater 3 comprises hollow heat-generating pipe 37, insulated heat cover 36, induction coil 35 and insulating case 34, the outside of heat-generating pipe 37 is coated with insulated heat cover 36, overlap 36 outsides at insulated heat and be wound with induction coil 35, insulating case 34 is coated with in induction coil 35 outside, induction coil 35 is connected with frequency converter 10, frequency converter 10 imports high frequency alternating current, induction coil 35 produces alternating magnetic field and forms eddy current on the surface of heat-generating pipe 37, and liquid flows through heat-generating pipe 37 and heated.
In the present embodiment, induction heater 3 adopts inductive heating principle, inductor imports high frequency alternating current, electromagnetic induction produces alternating magnetic field and reaches heating object at the surface of heat-generating cylindrical pipe 37 formation eddy current, liquid flows through heat-generating pipe 37 and is heated, and the flow direction heat-conducting plate 1 after heating removes heating battery case 9.Make heat-generating pipe 37 produce eddy heating for heating by induction coil 35, its efficiency ratio resistance efficiency of heating surface is high, and electrical isolation between heat-generating pipe 37 and main circuit, can avoid electric leakage, fail safe is good.
Be more preferably in execution mode at one of the present invention, heat-generating pipe 37 inwall is designed with flow-disturbing silk 31, this flow-disturbing silk 31 is helicla flute, when liquid flows through heat-generating pipe 37, liquid stream is under helicla flute effect, produce and rotate, under centrifugal action, flow through heat-generating pipe 37 near tube wall, heat exchanger effectiveness between liquid and heat-generating pipe 37 can be improved.
In another preferred implementation of the present invention, induction heater 3 also comprises collection chinaware 32, it is outside that this collection chinaware 32 is coated on induction coil 35, collection chinaware 32 is made up of permeability magnetic material, be installed on induction heater 3, can centered magnetic field energy, change CURRENT DISTRIBUTION situation, in active set, energy is on heat-generating pipe 37.Collection chinaware 32 reduces magnetic circuit reluctance and increases vortex power, the magnetic line of force is preferentially through magnetic conduction substance, and induction coil 35 outside adds high magnetic conduction substance can shorten the aerial crossing length of magnetic circuit, increases permeability, improve magnetic flux, thus improve heat-generating pipe 37 surface eddy power.
In the present embodiment, guard shield 33 can also be provided with in collection chinaware 32 outside, play the effect of protection collection chinaware 32.
In the present embodiment, as shown in Figure 7, cooling water tank 5 forms primarily of water inlet pipe 51, lower header 52, lid 53, water filling port 54, upper tank 55, condenser pipe 56, outlet pipe 57, fin 58.The cooling water tank 5 of concrete employing can be not limited to the structure shown in figure, also can be other existing cooling water tank 5 structures.In the present embodiment, temperature control system liquid is injected by filler, is designed with condenser pipe 56 in cooling water tank 5, and condenser pipe 56 induces one from on-board air conditioner condenser, then turns back to compressor of air conditioner entrance.Condenser pipe 56 is in cooling water tank 5, shape is helical form, after the hot liquid of return duct 7 inflow enters cooling water tank 5, can from two heat radiations, one is fall apart in air by the fin 58 on cooling water tank 5 by heat, another is that partial heat taken away by the condenser pipe 56 of coming from air-conditioning, and such radiating efficiency is higher.After fluid temperature raises, volumetric expansion is also held by cooling water tank 5, and be designed with relief valve covering, when system pressure is too high, pressure release opened by relief valve, and safeguards system can not be damaged because of hypertonia.
The present invention, according to heat-conduction principle, is flow through battery case 9 bottom surface with liquid, the torrid zone in battery is gone out battery case 9, or when low temperature, by heat trnasfer to battery case 9, so just can control temperature in battery case 9.In order to reduce environment, battery case 9 is affected, as summer road surface to battery case 9 radiant heat transfer, battery case in winter 9 pairs of function of environment heat emissions, paste one deck thermal insulation layer 15 in battery case 9 bottom, reduce environment on the impact of battery case 9.
Present invention also offers a kind of temperature control method of thermal-control battery case, comprise the steps:
S1, temperature sensor 18 detects the temperature in battery case 9, temperature signal is transferred to controller 11.
S2, controller 11 compares, judge temperature whether in normal range (NR), if in normal range (NR), then not start-up temperature regulating system, returns step S1, when temperature exceeds the value of setting, start-up temperature regulating system works, and humidity control system specifically comprises three kinds of mode of operations:
When the temperature inside the box is higher than preset temperature value, controller 11 makes temperature control system be operated in radiating mode, controller 11 starts water pump 4 and works, cooling fluid is extracted out from cooling water tank 5, be transported to each heat-conducting plate 1 inner lead 1A, the heat of heat-conducting plate 1 is taken away through return duct 7 by the cooling fluid flowing through heat-conducting plate 1, and flow divider 6 second exports closed, and liquid is got back to cooling water tank 5 through the first outlet of flow divider 6 and cooled.Such cooling fluid iterative cycles flowing, just taken away by the heat in battery case 9, temperature drops in normal range (NR).Under now temperature control system is operated in cooling operating mode, flow divider 6 cuts out the second outlet, cooling fluid is back in cooling water tank 5 and cools.
When the temperature inside the box is lower than preset temperature value, controller 11 makes temperature control system be operated in heating mode, controller 11 starts water pump 4 and works, start frequency converter 10 to work simultaneously, high-frequency current is transported to induction heater 3 by frequency converter 10, induction heater 3 generates heat, and the liquid flowing through induction heater 3 sends heat to battery case 9 by heat-conducting plate 1 heat, and battery case 9 temperature rises.Flow divider 6 first exports closed, and the liquid that liquid flows through heat-conducting plate 1 gets back to water pump 4 through the second outlet of flow divider 6.Under now temperature control system is operated in heating cycle, flow divider 6 cuts out tank port, directly flows to heater heating.
When occurring in case that local temperature is too high, when exceeding default temperature gap, controller 11 makes temperature control system be operated in equalization temperature pattern, controller 11 starts water pump 4 and works, and is extracted out by liquid from cooling water tank 5, is transported in each heat-conducting plate 1, localized hyperthermia is located heat and takes away and be distributed to other positions by the liquid flowing through heat-conducting plate 1, flow divider 6 first exports closed, and the liquid that liquid flows through heat-conducting plate 1 gets back to water pump 4 through the second outlet of flow divider 6, continues to circulate.Under now temperature control system is operated in temperature adjustment operating mode, flow divider 6 cuts out tank port, and cooling fluid direct circulation flows, and amount of localized heat is spread out, takes away and be distributed to other positions, reach balanced the temperature inside the box object.
Temperature control method of the present invention has three kinds of working methods, can not only heat up, and cooling, can also regulate temperature is unbalanced.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (9)
1. a thermal-control battery case, it is characterized in that, comprise the closed box that inside is placed with battery, lay respectively at the controller in described casing, a temperature control system and M temperature sensor, a described M temperature sensor is connected with controller respectively, described controller controls temperature control system according to temperature conditions and is operated in radiating mode, one of heating mode and equalization temperature pattern, and described M is positive integer;
Described temperature control system comprises N number of heat-conducting plate, water pump, cooling water tank, isocon, flow divider, return duct, frequency converter and induction heater, described N is positive integer, and described controller is connected with the control signal input of water pump, flow divider and frequency converter respectively, and described controller controls the work of water pump, flow divider and frequency converter respectively;
Described flow divider comprises valve seat, spool, valve rod, driving gear, driven gear, motor and valve guard, described motor is connected with driving gear, drive driving gear rotates, described driving gear is engaged with the gear teeth of driven gear, valve rod one end is provided with spool, the other end is connected with driven gear, valve body is designed with water inlet and two delivery ports, controller controls electric machine rotation, band movable valve plug moves, poppet head is provided with a cylindrical seal ring, spool moves stop position at valve seat two ends, when first end, block the first delivery port, liquid flows into valve seat from water inlet, flow out from the second delivery port, when changing mode of operation, controller drive motors rotates, by master, driven gear band movable valve plug is by moving left the second end, block the second delivery port, liquid flows into valve seat by water inlet, flow out from the first delivery port,
The outlet of described cooling water tank is connected with water pump, described water delivery side of pump is connected with the entrance of induction heater, the outlet of described induction heater is connected with the entrance of N number of heat-conducting plate respectively by isocon, the outlet of described N number of heat-conducting plate is connected with the entrance of flow divider respectively by return duct, first outlet of described flow divider connects the entrance of cooling water tank, second outlet of described flow divider connects the entrance of water pump, when temperature control system is operated in radiating mode, liquid imports cooling water tank by the first outlet of flow divider, when temperature control system is operated in heating mode and equalization temperature pattern, liquid is by the second outlet flow back water pump of flow divider,
Described frequency converter is connected with induction heater, and when temperature control system is operated in radiating mode, described frequency converter inputs alternating current to induction heater, controls the work of described induction heater.
2. thermal-control battery case as claimed in claim 1, it is characterized in that: described casing inner air and outer air isolation, described casing comprises battery case body and battery box cover, battery inner box is provided with in casing, be provided with array in described battery inner box, battery case body is provided with Low-voltage socket and high-tension terminal, described array is connected with high-tension terminal with Low-voltage socket respectively by circuit, described casing is metal material, and described battery inner box is heat-conducting insulation material.
3. thermal-control battery case as claimed in claim 1, it is characterized in that: a described M temperature sensor is evenly arranged on the inner bottom surface of casing, in the horizontal, the distance between adjacent two temperature sensors is equal, in the vertical, the distance between adjacent two temperature sensors is also equal.
4. thermal-control battery case as claimed in claim 1, it is characterized in that: described heat-conducting plate fits on the inwall of described casing, described heat-conducting plate indoor design has P bar water channel, mixed flow case is respectively arranged with at the entrance and exit place of heat-conducting plate inner two ends P bar water channel, entrance mixed flow case is connected with the entrance of P bar water channel respectively, outlet mixed flow case is connected with the outlet of P bar water channel respectively, and described P is positive integer.
5. thermal-control battery case as claimed in claim 1, it is characterized in that: described induction heater comprises hollow heat-generating pipe, insulated heat cover, induction coil and insulating case, the outside of described heat-generating pipe is coated with insulated heat cover, induction coil is wound with in insulated heat cover outside, insulating case is coated with in induction coil outside, induction coil is connected with frequency converter, frequency converter imports high frequency alternating current, induction coil produces alternating magnetic field and forms eddy current on the surface of heat-generating pipe, and liquid flows through heat-generating pipe and heated.
6. thermal-control battery case as claimed in claim 5, it is characterized in that: described heat-generating pipe inwall is designed with flow-disturbing silk, described flow-disturbing silk is helicla flute.
7. the thermal-control battery case as described in claim 5 or 6, is characterized in that: also comprise collection chinaware, and described collection chinaware is coated on induction coil outside, and described collection chinaware is made up of permeability magnetic material.
8. a temperature control method for thermal-control battery case described in claim 1, is characterized in that: comprise the steps:
S1, temperature sensor detects the temperature in battery case, and temperature signal is transferred to controller;
S2, controller compares, judge temperature whether in normal range (NR), if in normal range (NR), then not start-up temperature regulating system, returns step S1, when temperature exceeds the value of setting, start-up temperature regulating system works, and humidity control system specifically comprises three kinds of mode of operations:
When the temperature inside the box is higher than preset temperature value, controller makes temperature control system be operated in radiating mode, controller starts pump working, cooling fluid is extracted out from cooling water tank, be transported in each heat-conducting plate, the heat of heat-conducting plate is taken away through return duct by the cooling fluid flowing through heat-conducting plate, and flow divider second exports closed, and liquid is got back to cooling water tank through the first outlet of flow divider and cooled;
When the temperature inside the box is lower than preset temperature value, controller makes temperature control system be operated in heating mode, controller starts pump working, start frequency converter work simultaneously, high-frequency current is transported to induction heater by frequency converter, and induction heater generates heat, and the liquid flowing through induction heater sends heat to battery case by heat-conducting plate heat, flow divider first exports closed, and the liquid that liquid flows through heat-conducting plate gets back to water pump through the second outlet of flow divider;
When occurring in case that local temperature is too high, when exceeding default temperature gap, controller makes temperature control system be operated in equalization temperature pattern, controller starts pump working, is extracted out by liquid, be transported in each heat-conducting plate from cooling water tank, localized hyperthermia is located heat and takes away and be distributed to other positions by the liquid flowing through heat-conducting plate, flow divider first exports closed, and the liquid that liquid flows through heat-conducting plate gets back to water pump through the second outlet of flow divider, continues to circulate.
9. the temperature control method of thermal-control battery case as claimed in claim 8, is characterized in that: described flow divider comprises valve seat, spool, valve rod, driving gear, driven gear, motor and valve guard, described motor is connected with driving gear, drive driving gear rotates, described driving gear is engaged with the gear teeth of driven gear, valve rod one end is provided with spool, the other end is connected with driven gear, valve body is designed with water inlet and two delivery ports, controller controls electric machine rotation, band movable valve plug moves, poppet head is provided with a cylindrical seal ring, spool moves stop position at valve seat two ends, when first end, block the first delivery port, liquid flows into valve seat from water inlet, flow out from the second delivery port, when changing mode of operation, controller drive motors rotates, by master, driven gear band movable valve plug is by moving left the second end, block the second delivery port, liquid flows into valve seat by water inlet, flow out from the first delivery port.
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| CN201410208523.5A CN103985831B (en) | 2014-05-16 | 2014-05-16 | A kind of thermal-control battery case and temperature control method thereof |
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