CN103985831A - Temperature control battery box and temperature control method thereof - Google Patents
Temperature control battery box and temperature control method thereof Download PDFInfo
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- CN103985831A CN103985831A CN201410208523.5A CN201410208523A CN103985831A CN 103985831 A CN103985831 A CN 103985831A CN 201410208523 A CN201410208523 A CN 201410208523A CN 103985831 A CN103985831 A CN 103985831A
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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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- General Chemical & Material Sciences (AREA)
- General Induction Heating (AREA)
Abstract
The invention provides a temperature control battery box and a temperature control method thereof. The temperature control battery box comprises a controller, a temperature control system and a temperature sensor, wherein the controller controls the temperature control system to operate in one of a heat dissipation mode, a heating mode and a balance temperature mode according to temperature conditions; the temperature control system comprises N heat-conducting plates, a water pump, a cooling water tank, a shunt pipe, a shunt valve, a return pipe, a frequency converter and an induction heater; a first outlet of the shunt valve is connected with an inlet of the cooling water tank; a second outlet of the shunt valve is connected with an inlet of the water pump; when the temperature control system operates in the heat dissipation mode, liquid is introduced into the cooling water tank through the first outlet of the shunt valve; when the temperature control system operates in the heating mode and the balance temperature mode, liquid flows back to the water pump through the second outlet of the shunt valve. The temperature control battery box can be designed into a totally sealed box according to a conduction heat transfer principle; by adoption of the conduction heat transfer, the heat transfer efficiency is high, and the temperature is rapidly regulated.
Description
Technical field
The present invention relates to a kind of battery case, be specifically related to a kind of automatic temperature-adjusting of realizing and 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 is failed the problem noted, in order to ensure electrokinetic cell safety, reliably working, must carry out temperature control to battery case, electrokinetic cell is always worked in suitable temperature range.
At present power battery box temperature is controlled to the cross-ventilated mode of general employing and carry out temperature adjusting, to control battery the temperature inside the box, but adopt cross-ventilation mode to carry out temperature control and need to from case, introduce air, protection to battery case brings difficulty, 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 a kind of battery case of can either carrying out and protect, can realize again temperature control object thermal-control battery case is the technical problem of needing solution badly.
Summary of the invention
In order to overcome the defect existing 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, is conducive to protect, can, according to battery the temperature inside the box to battery case heat radiation or heating, realize temperature and control 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 that inside is placed with the closed box of 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 is controlled temperature control system according to temperature conditions and is operated in one of radiating mode, heating mode and equalization temperature pattern, and described M is positive integer, described temperature control system comprises N 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 control signal input, flow divider and the frequency converter of water pump respectively, and described controller is controlled respectively the work of water pump, flow divider and frequency converter, 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 heat-conducting plate respectively by isocon, the outlet of a described N heat-conducting plate is connected with the entrance of flow divider by return duct respectively, the first outlet of described flow divider connects the entrance of cooling water tank, the 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 flows back to water pump by the second outlet of flow divider, described frequency converter is connected with induction heater, and when temperature control system is operated in radiating mode, described frequency converter is inputted alternating current to induction heater, controls the work of described induction heater.
What existing battery case adopted is air cooling system, and ambient, cool air is imported in battery case, and hot-air is discharged to 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 fast the adjusting of power brick temperature.Thermal-control battery case of the present invention uses conduction heat transfer principle, and heat transfer efficiency is high, regulates temperature piece.Because adopting conduction heat transfer, power brick into and out of air port, can be designed to complete seal case without design, and 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 be provided with temperature sensor in battery case, detect in battery case temperature everywhere, when the temperature inside the box too high, during too low the or unequal situation of temperature, temperature control is carried out in the work of start-up temperature regulating system automatically, 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, in casing, be provided with battery inner box, in described battery inner box, be provided with array, be provided with Low-voltage socket and high-tension terminal on battery case body, described array is connected with high-tension terminal with Low-voltage socket by circuit respectively, described casing is metal material, and described battery inner box is heat-conducting insulation material.
Battery case metal of the present invention is made, and 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, can meet high pressure and low-voltage power supply demand simultaneously 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 also equates.Can accurately detect temperature height and temperature difference size in Battery case.
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, entrance and exit place at the inner two ends of heat-conducting plate P bar water channel is respectively arranged with mixed flow case, 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, the rotation of drive driving gear, the gear teeth interlock of described driving gear and driven gear, valve rod one end is provided with spool, the other end is connected with driven gear, on valve body, be designed with water inlet and two delivery ports, controller is controlled electric machine rotation, band movable valve plug moves, spool head is provided with a cylindricality sealing 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, from the second delivery port, flow out, 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, from the first delivery port, flow out.
This flow divider is simple in structure, and reliable operation, by using flow divider, has realized the demand of multiple-working mode.
In a preferred embodiment of the present invention, described induction heater comprises hollow heat-generating pipe, insulation collet, induction coil and insulating case, the outside of described heat-generating pipe is coated with insulation collet, in insulation collet outside, be wound with induction coil, in induction coil outside, be coated with insulating case, induction coil is connected with frequency converter, and frequency converter imports high-frequency alternating electric 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 is heated.By induction coil, make heat-generating pipe produce eddy heating for heating, its efficiency is higher than resistance heating efficiency, and electrical isolation between heat-generating pipe and main circuit, can avoid electric leakage, and 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 flows under the effect of flow-disturbing silk, produces rotation, under centrifugal action, near tube wall, flows through heat-generating pipe, can improve heat exchanger effectiveness between liquid and heat-generating pipe.
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 by permeability magnetic material.Collection chinaware reduces magnetic circuit reluctance and increases eddy current 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, thereby 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 comparison, judges that temperature is whether in normal range (NR), if in normal range (NR), start-up temperature regulating system not, returns to step S1, when temperature exceeds the value of setting, the work of start-up temperature regulating system, humidity control system specifically comprises three kinds of mode of operations:
When in bag, temperature 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 cooling fluid that flows through heat-conducting plate takes away the heat of heat-conducting plate through return duct, and flow divider the second outlet is closed, and liquid is got back to cooling water tank through the first outlet of flow divider and carried out cooling;
When the temperature inside the box is during lower than preset temperature value, controller makes temperature control system be operated in heating mode, controller starts pump working, start frequency converter work simultaneously, frequency converter is transported to induction heater by high-frequency current, induction heater heating, and the liquid of the induction heater of flowing through sends heat to battery case by heat-conducting plate heat, flow divider the first outlet is closed, and the liquid that liquid flows through heat-conducting plate exports and gets back to water pump through second of flow divider.
In case, occur that local temperature is too high, while surpassing default temperature gap, controller makes temperature control system be operated in equalization temperature pattern, controller starts pump working, and liquid is extracted out from cooling water tank, is transported in each heat-conducting plate, the liquid that flows through heat-conducting plate is located heat by localized hyperthermia and is taken away and be distributed to other positions, flow divider the first outlet is closed, and the liquid that liquid flows through heat-conducting plate exports and gets back to water pump through second of flow divider, continues to circulate.
Temperature control method of the present invention has three kinds of working methods, not only can heat up, and cooling, can also regulate temperature is unbalanced.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming 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 insulation collets; 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
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " longitudinally ", " laterally ", " on ", orientation or the position relationship of the indication such as D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation, construct and operation, therefore can not be interpreted as limitation of the present invention.
In description of the invention, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
The invention provides a kind of thermal-control battery case 9, it comprises that inside is placed with the closed box of 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 is isolated not convection current, be conducive to battery protection, casing comprises battery case body and battery box cover 8, in casing, be provided with battery inner box 16, in battery inner box 16, be provided with the array that battery 17 forms, on battery case body, be provided with Low-voltage socket 12 and high-tension terminal 14, array is connected with high-tension terminal 14 with Low-voltage socket 12 by circuit respectively, 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, and battery inner box 16 use heat-conducting insulation materials, can conduct heat well and insulate.
In the present embodiment, between the interior battery 17 of battery case 9 and battery inner box 16, fill faying face gap with thermal conductive insulation glue between battery inner box 16 and its outside 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 be controlled the folding of battery box cover 8, specifically can adopt existing electronic switch, also can adopt existing mechanical switch, by battery case service switch 13, can open battery case 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 laying respectively in casing, this M temperature sensor 18 is connected with controller 11 respectively, controller 11 is controlled temperature control system according to temperature conditions and is operated in one of radiating mode, heating mode and equalization temperature pattern, wherein, M is positive integer.
In the present embodiment, M is 20, and as shown in Figure 3,20 high-accuracy temperature sensors 18 of the interior layout of battery case 9, to detect the interior temperature of 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 also equates.At the interior set temperature transducer 18 of battery case 9, detect in battery case 9 everywhere temperature and be transferred to controller 11, when the temperature inside the box is too high, too low or during the unequal situation of temperature, temperature control is carried out in the automatic start-up temperature regulating system work of controller 11, 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 shown in Fig. 2 (a), as shown in Figure 2, temperature control system comprises N 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 control signal input, flow divider 6 and the frequency converter 10 of water pump 4 respectively, and controller 11 is controlled respectively the work of water pump 4, flow divider 6 and frequency converter 10.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 heat-conducting plate 1 respectively by isocon 2, the outlet of N heat-conducting plate 1 is connected with the entrance of flow divider 6 by return duct 7 respectively, the first outlet of flow divider 6 connects the entrance of cooling water tank 5, the 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 flows back to water pump 4 by the second outlet 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, to induction heater 3 input alternating currents, is controlled the work of induction heater 3.Temperature of the present invention regulates various informative, by be provided with temperature sensor 18 in battery case 9, detect in battery case 9 temperature everywhere, when the temperature inside the box too high, during too low the or unequal situation of temperature, temperature control is carried out in the work of start-up temperature regulating system automatically, 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 capacity, and entire car controller forms complex control system.Each temperature sensor connects a signal input part of controller, and 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, temperature sensor connects a signal input part in controller PTA pin group, PTB pin group, PTC pin group, PTD pin group, and 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, entrance and exit place at the inner two ends of heat-conducting plate 1 P bar water channel 1A is respectively arranged with mixed flow case 1B, 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 being more preferably, as shown in Figure 4, heat-conducting plate 1 use heat-conducting glue is close on battery case 9 bottom surfaces, and effect is to carry out heat exchange with battery case 9.Heat-conducting plate 1 is made by heat-conducting metal, three water channel 1A of plate thin portion within it design, liquid flows through water channel 1A and heat-conducting plate 1 carries out heat exchange, at heat-conducting plate 1 two ends, be designed with mixed flow case 1B, when flowing into mixed flow case 1B, concentrates liquid, the liquid that three water channel 1A can be flowed out mix 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 is conducted basic principle according to heat, and 1 of battery and heat-conducting plate are set up High Efficiency Thermal conducting path, heat is spread out of fast or is imported 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, drives driving gear 64 rotations, the gear teeth interlock of driving gear 64 and driven gear 65, and valve rod 63 one end are provided with spool 62, and the other end is connected with driven gear 65.On valve body, be designed with water inlet and two delivery ports, controller 11 is controlled motor 66 and is rotated, band movable valve plug 62 moves, spool 62 heads are provided with a cylindricality sealing 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, from the second delivery port 692, flow out, when changing mode of operation, controller 11 drive motors 65 rotate, by driving gear 64, driven gear 65 band movable valve plugs 62 are by moving left the second end, valve rod 63 returns to valve guard 67 inside, block the second delivery port 692, liquid flows into valve seat 61 by water inlet 68, from the first delivery port 691, flow out.
As shown in Figure 5, flow divider 6 effects of the present invention are exactly that the liquid that return duct 7 streams are come is shunted.Temperature control system has three kinds of mode of operations, and radiating mode, heating mode, balanced mode only just import cooling water tank 5 by the liquid refluxing at radiating mode, and heating mode, balanced mode directly flow to isocon 2 by withdrawing fluid and get around cooling water tank 5.
On valve body, be designed with water inlet and two delivery ports, spool 62 moves in valve seat 61, controller 11 is controlled motor 66 and is rotated, band movable valve plug 62 moves, spool 62 heads are provided with a cylindricality sealing 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, from the second delivery port 692, flow out, when changing mode of operation, controller 11 drive motors 66 rotate, by driving gear 64, driven gear 65 band movable valve plugs 62 are by moving left right-hand member, block the second delivery port 692, liquid flows into valve seat 61 by water inlet 68, from the first delivery port 691, flow out, realize the change of current.
Motor 66 is when the interior cylindrical hole of valve seat 61 moves to termination, and because motor 65 produces stall, electric current can sharply increase, and controller 11 detects after electric current increases and just sends instruction disable motor 66, therefore without design spool 62 position transducers.This flow divider 6 is simple in structure, 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, insulation collet 36, induction coil 35 and insulating case 34, the outside of heat-generating pipe 37 is coated with insulation collet 36, in insulation collet 36 outsides, be wound with induction coil 35, in induction coil 35 outsides, be coated with insulating case 34, induction coil 35 is connected with frequency converter 10, frequency converter 10 imports high-frequency alternating electric 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 is heated.
In the present embodiment, induction heater 3 adopts inductive heating principle, inductor imports high-frequency alternating electric current, electromagnetic induction produces alternating magnetic field and reaches heating object at the surface of cylindrical heat-generating 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.By induction coil 35, make heat-generating pipe 37 produce eddy heating for heating, its efficiency is higher than resistance heating efficiency, and electrical isolation between heat-generating pipe 37 and main circuit, can avoid electric leakage, and fail safe is good.
At one of the present invention, be more preferably in execution mode, heat-generating pipe 37 inwalls are 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 rotation, under centrifugal action, near tube wall, flow through heat-generating pipe 37, can improve 37 heat exchanger effectivenesss of liquid and heat-generating pipe.
In another preferred implementation of the present invention, induction heater 3 also comprises collection chinaware 32, this collection chinaware 32 is coated on induction coil 35 outsides, collection chinaware 32 is made by permeability magnetic material, be installed on induction heater 3, can centered magnetic field energy, change CURRENT DISTRIBUTION situation, in active set, energy is to heat-generating pipe 37.Collection chinaware 32 reduces magnetic circuit reluctance and increases eddy current power, the magnetic line of force is preferentially through magnetic conduction substance, and induction coil 35 outsides add high magnetic conduction substance can shorten the aerial crossing length of magnetic circuit, increases permeability, improve magnetic flux, thereby improve heat-generating pipe 37 surface eddy power.
In the present embodiment, in collection chinaware 32 outsides, can also be provided with guard shield 33, play the effect of protection collection chinaware 32.
In the present embodiment, as shown in Figure 7, cooling water tank 5 is mainly comprised 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 concrete cooling water tank 5 adopting can be not limited to the structure shown in figure, can be also 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, be shaped as helical form, the hot liquid flowing into when return duct 7 enters after cooling water tank 5, can be from two heat radiations, the one, by the fin 58 on cooling water tank 5, heat is fallen apart in air, another is that the condenser pipe 56 of coming from air-conditioning is taken away part heat, and radiating efficiency is higher like this.After fluid temperature raises, volumetric expansion, is also to be held by cooling water tank 5, is designed with relief valve covering, and when system pressure is too high, relief valve is opened pressure release, and safeguards system can not damaged because of hypertonia.
The present invention, according to heat-conduction principle, is flow through battery case 9 bottom surfaces with liquid, and the torrid zone in battery is gone out to battery case 9, or when low temperature, heat is passed to battery case 9, so just can control the interior temperature of battery case 9.In order to reduce environment to battery case 9 impact, as summer road surface to battery case 9 radiant heat transfers, 9 pairs of function of environment heat emissions of battery case in winter, paste one deck thermal insulation layers 15 in battery case 9 bottoms, reduce the impact of environment on battery case 9.
The present invention also provides a kind of temperature control method of thermal-control battery case, comprises the steps:
S1, the temperature that temperature sensor 18 detects in battery case 9, is transferred to controller 11 by temperature signal.
S2, controller 11 relatively, judge that temperature is whether in normal range (NR), if in normal range (NR), start-up temperature regulating system not, returns to step S1, when temperature exceeds the value of setting, the work of start-up temperature regulating system, humidity control system specifically comprises three kinds of mode of operations:
When in bag, temperature is higher than preset temperature value, controller 11 makes temperature control system be operated in radiating mode, controller 11 starts water pump 4 work, cooling fluid is extracted out from cooling water tank 5, be transported to each heat-conducting plate 1 inner lead 1A, the cooling fluid that flows through heat-conducting plate 1 takes away the heat of heat-conducting plate 1 through return duct 7, and flow divider 6 second outlets are closed, and liquid is got back to cooling water tank 5 through the first outlet of flow divider 6 and carried out cooling.Cooling fluid iterative cycles flows like this, just the heat in battery case 9 is taken away, and temperature drops in normal range (NR).Now temperature control system is operated under cooling operating mode, and flow divider 6 cuts out the second outlet, by cooling fluid be back in cooling water tank 5, carry out cooling.
When the temperature inside the box is during lower than preset temperature value, controller 11 makes temperature control system be operated in heating mode, controller 11 starts water pump 4 work, start frequency converter 10 work simultaneously, frequency converter 10 is transported to induction heater 3 by high-frequency current, induction heater 3 heatings, the liquid of the induction heater 3 of flowing through sends heat to battery case 9 by heat-conducting plate 1 heat, and battery case 9 temperature rise.Flow divider 6 first outlets are closed, and the liquid that liquid flows through heat-conducting plate 1 exports and gets back to water pump 4 through second of flow divider 6.Now temperature control system is operated under heating cycle, and flow divider 6 cuts out tank port, directly flows to heater heating.
In case, occur that local temperature is too high, while surpassing default temperature gap, controller 11 makes temperature control system be operated in equalization temperature pattern, controller 11 starts water pump 4 work, and liquid is extracted out from cooling water tank 5, is transported in each heat-conducting plate 1, the liquid that flows through heat-conducting plate 1 is located heat by localized hyperthermia and is taken away and be distributed to other positions, flow divider 6 first outlets are closed, and the liquid that liquid flows through heat-conducting plate 1 exports and gets back to water pump 4 through second of flow divider 6, continues to circulate.Now temperature control system is operated under temperature adjustment operating mode, and flow divider 6 cuts out tank port, and cooling fluid direct circulation flows, and amount of localized heat is spread out, and takes away and is distributed to other positions, reaches balanced the temperature inside the box object.
Temperature control method of the present invention has three kinds of working methods, not only can heat up, and cooling, can also regulate temperature is unbalanced.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a thermal-control battery case, it is characterized in that, comprise that inside is placed with the closed box of battery, lay respectively at controller, temperature control system and the M temperature sensor in described casing, a described M temperature sensor is connected with controller respectively, described controller is controlled temperature control system according to temperature conditions and is operated in one of radiating mode, heating mode and equalization temperature pattern, and described M is positive integer;
Described temperature control system comprises N 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 control signal input, flow divider and the frequency converter of water pump respectively, and described controller is controlled respectively the work of water pump, flow divider and frequency converter;
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 heat-conducting plate respectively by isocon, the outlet of a described N heat-conducting plate is connected with the entrance of flow divider by return duct respectively, the first outlet of described flow divider connects the entrance of cooling water tank, the 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 flows back to water pump by the second outlet of flow divider,
Described frequency converter is connected with induction heater, and when temperature control system is operated in radiating mode, described frequency converter is inputted 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, in casing, be provided with battery inner box, in described battery inner box, be provided with array, be provided with Low-voltage socket and high-tension terminal on battery case body, described array is connected with high-tension terminal with Low-voltage socket by circuit respectively, 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 equates, in the vertical, the distance between adjacent two temperature sensors also equates.
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, entrance and exit place at the inner two ends of heat-conducting plate P bar water channel is respectively arranged with mixed flow case, 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, 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, the rotation of drive driving gear, the gear teeth interlock of described driving gear and driven gear, valve rod one end is provided with spool, the other end is connected with driven gear, on valve body, be designed with water inlet and two delivery ports, controller is controlled electric machine rotation, band movable valve plug moves, spool head is provided with a cylindricality sealing 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, from the second delivery port, flow out, 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, from the first delivery port, flow out.
6. thermal-control battery case as claimed in claim 1, it is characterized in that: described induction heater comprises hollow heat-generating pipe, insulation collet, induction coil and insulating case, the outside of described heat-generating pipe is coated with insulation collet, in insulation collet outside, be wound with induction coil, in induction coil outside, be coated with insulating case, induction coil is connected with frequency converter, frequency converter imports high-frequency alternating electric 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 is heated.
7. thermal-control battery case as claimed in claim 6, is characterized in that: described heat-generating pipe inwall is designed with flow-disturbing silk, and described flow-disturbing silk is helicla flute.
8. the thermal-control battery case as described in claim 6 or 7, is characterized in that: also comprise collection chinaware, described collection chinaware is coated on induction coil outside, and described collection chinaware is made by permeability magnetic material.
9. 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 comparison, judges that temperature is whether in normal range (NR), if in normal range (NR), start-up temperature regulating system not, returns to step S1, when temperature exceeds the value of setting, the work of start-up temperature regulating system, humidity control system specifically comprises three kinds of mode of operations:
When in bag, temperature 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 cooling fluid that flows through heat-conducting plate takes away the heat of heat-conducting plate through return duct, and flow divider the second outlet is closed, and liquid is got back to cooling water tank through the first outlet of flow divider and carried out cooling;
When the temperature inside the box is during lower than preset temperature value, controller makes temperature control system be operated in heating mode, controller starts pump working, start frequency converter work simultaneously, frequency converter is transported to induction heater by high-frequency current, induction heater heating, and the liquid of the induction heater of flowing through sends heat to battery case by heat-conducting plate heat, flow divider the first outlet is closed, and the liquid that liquid flows through heat-conducting plate exports and gets back to water pump through second of flow divider.
In case, occur that local temperature is too high, while surpassing default temperature gap, controller makes temperature control system be operated in equalization temperature pattern, controller starts pump working, and liquid is extracted out from cooling water tank, is transported in each heat-conducting plate, the liquid that flows through heat-conducting plate is located heat by localized hyperthermia and is taken away and be distributed to other positions, flow divider the first outlet is closed, and the liquid that liquid flows through heat-conducting plate exports and gets back to water pump through second of flow divider, continues to circulate.
10. the temperature control method of thermal-control battery case as claimed in claim 9, 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, the rotation of drive driving gear, the gear teeth interlock of described driving gear and driven gear, valve rod one end is provided with spool, the other end is connected with driven gear, on valve body, be designed with water inlet and two delivery ports, controller is controlled electric machine rotation, band movable valve plug moves, spool head is provided with a cylindricality sealing 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, from the second delivery port, flow out, 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, from the first delivery port, flow out.
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| CN106207305A (en) * | 2016-07-11 | 2016-12-07 | 上海卫星装备研究所 | A kind of New Satellite electrical measurement process battery automatic refrigerating device |
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| US12009493B2 (en) | 2018-06-18 | 2024-06-11 | Milwaukee Electric Tool Corporation | Inductive heating of batteries for charging |
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| CN111162489A (en) * | 2019-12-25 | 2020-05-15 | 奇瑞汽车股份有限公司 | Wire harness heat dissipation pipe sleeve |
| CN111446520A (en) * | 2020-03-18 | 2020-07-24 | 创驱（上海）新能源科技有限公司 | Device and method for heating power battery pack by adopting electromagnetic induction |
| CN111834702A (en) * | 2020-07-09 | 2020-10-27 | 的卢技术有限公司 | Immersion type battery pack heat balance system based on micro-tube array |
| CN113157016A (en) * | 2021-03-23 | 2021-07-23 | 北京无线电计量测试研究所 | Incubator for atomic clock and use method |
| CN113921938A (en) * | 2021-09-03 | 2022-01-11 | 上海玫克生储能科技有限公司 | Energy storage power station and liquid constant temperature system used in energy storage power station |
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