CN102723535B - Heat control system and method of power battery - Google Patents
Heat control system and method of power battery Download PDFInfo
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- CN102723535B CN102723535B CN201210199038.7A CN201210199038A CN102723535B CN 102723535 B CN102723535 B CN 102723535B CN 201210199038 A CN201210199038 A CN 201210199038A CN 102723535 B CN102723535 B CN 102723535B
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- 238000000034 method Methods 0.000 title claims description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 40
- 239000003570 air Substances 0.000 claims description 368
- 230000000052 comparative effect Effects 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 239000012080 ambient air Substances 0.000 claims description 3
- 238000011897 real-time detection Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 230000002977 hyperthermial effect Effects 0.000 description 9
- 230000001276 controlling effect Effects 0.000 description 5
- 238000007664 blowing Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
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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 invention provides a heat control system of a power battery. When the power battery needs to be cooled, a controller turns on a first valve, a third valve and a second fan; a first air duct, a power battery and a third air duct form a gas passage; the first air duct inputs cold air into the power battery for cooling, and the cooled air is discharged by the third air duct; if the power battery needs to be heated, a second valve, a first fan and a fourth valve are turned on; a second air duct, the power battery, the first air duct and a fourth air duct form a gas passage; and the second air duct inputs hot air into the power battery for heating, and the heated air is conveyed back to the second air duct through the first air duct and the fourth air duct. The heat control system of the power battery can be used for performing real-time adjustment of the temperature of the power battery, and protecting the performance of the power battery. By adopting different cooling air ducts and heating air ducts, the external cold air or hot air is made full use to cool or heat the power battery, and the heat control efficiency is high.
Description
Technical field
The application relates to new-energy automobile field, particularly a kind of thermal control system of electrokinetic cell and heat control method.
Background technology
New-energy automobile refers to other energy automobiles all except gasoline, Diesel engine, new-energy automobile on sale in current Chinese market commonly hybrid vehicle.
Electrokinetic cell, as the main energy-storage travelling wave tube in hybrid vehicle, is the critical component of hybrid vehicle, directly affects the performance of hybrid vehicle.Work under the various environment such as high temperature, cold in automobile, electrokinetic cell also needs to stand the comparatively rugged environment impact of high and low temperature geometric ratio, in battery in high and low temperature environment, can reduce battery performance and reduction of service life.
As the schematic diagram of Fig. 1, what the thermal control of electrokinetic cell adopted at present be generally wind circulating-heating and cooling system comprises: air inlet duct 001, heater 002, fan 003 and exhaust passage 004.When electrokinetic cell needs to heat, be input into air from air inlet duct 001, air is heated into hot-air through heater 002, and the cold air of hot-air and electrokinetic cell exchanges, heat electrokinetic cell, the air in electrokinetic cell is discharged by exhaust passage 004 through passing through fan 003; When electrokinetic cell needs to cool, from air inlet duct 001 input air, air themperature is lower, exchanges after air enters electrokinetic cell with the hot-air of electrokinetic cell, cool electrokinetic cell, the air in electrokinetic cell is discharged by exhaust passage 004 through passing through fan 003.
But adopt above-mentioned wind circulating-heating and cooling system, heating and cooling adopt identical air channel, heating effect is bad, energy in the hot-air of battery is not fully used and has just been discharged outside car, has both wasted valuable heat, and has extended heating time again.
Summary of the invention
In view of this, the application provides a kind of thermal control system and heat control method of electrokinetic cell, by lengthening the circulation timei of hot-air in battery pack, improves, conserve energy to heating effect.
Present invention also provides a kind of heat control method of electrokinetic cell, in order to ensure above-mentioned control system implementation and application in practice.
This application provides a kind of thermal control system of electrokinetic cell, the thermal control system of described electrokinetic cell is applied to hybrid vehicle, comprising:
Controller;
The first air channel be connected with described electrokinetic cell respectively, the second air channel and the 3rd air channel;
The 4th air channel be connected with the second air channel with described first air channel respectively;
Wherein, the first valve is provided with in described first air channel;
The second valve and the first fan is provided with in described second air channel;
The 3rd valve and the second fan is provided with in described 3rd air channel;
The 4th valve is provided with in described 4th air channel;
Described controller, for when the real time temperature of described electrokinetic cell is higher than the first preset temperature value, open described first valve and the 3rd valve, and control described second fan cool ambient air is inputted described electrokinetic cell by described first air channel and by described 3rd air channel discharge; When the real time temperature of described electrokinetic cell is lower than the second preset temperature value, open described second valve and the 4th valve, and control described first fan and extraneous hot-air is inputted described electrokinetic cell by described second air channel and passes the second air channel back by the first air channel and the 4th air channel.
The thermal control system of above-mentioned electrokinetic cell, preferably, described controller comprises:
Battery temperature detector, for detecting the real time temperature of described electrokinetic cell;
Comparative device, for comparing described real time temperature with described first preset temperature value and the second preset temperature value respectively;
First signal generator, for when described real time temperature is higher than the first preset temperature value, send the first signal controlling described first valve and the 3rd valve opening, when described real time temperature is lower than the second preset temperature value, send the secondary signal controlling described second valve and the 4th valve opening;
Secondary signal generator, for when described real time temperature is lower than described second preset temperature value, sends the first enabling signal of startup first fan;
3rd signal generator, for when described real time temperature is higher than described first preset temperature value, sends the second enabling signal of startup second fan.
The thermal control system of above-mentioned electrokinetic cell, preferably, also comprises:
Heater, for when the hot-air of described second air channel input does not meet the 3rd preset temperature value, by described hot air to the 3rd preset temperature value.
The thermal control system of above-mentioned electrokinetic cell, preferably, described controller also comprises:
Air temperature detector, for when heating electrokinetic cell, detects the temperature by the hot-air in the second air channel in real time;
Determining device, for judging that described air temperature detector detects whether satisfied 3rd preset temperature value of temperature of the hot-air by the second air channel obtained;
4th signal generator, during for judging that when described determining device the hot-air of described second air channel input does not meet the 3rd preset temperature value, sends the heating starting signal starting heater and heat described hot-air.
The thermal control system of above-mentioned electrokinetic cell, preferably, described first enabling signal is pulse width modulation (PWM) enable signal.
The thermal control system of above-mentioned electrokinetic cell, preferably, described second enabling signal is pulse width modulation (PWM) enable signal.
The thermal control system of above-mentioned electrokinetic cell, preferably, described first valve, the second valve, the 3rd valve and the 4th valve are electromagnetically operated valve.
A heat control method for electrokinetic cell, comprising:
The temperature of real-time detection electrokinetic cell, and described real time temperature is compared with described first preset temperature value and the second preset temperature value respectively;
When described comparison result be the temperature of electrokinetic cell higher than the first preset temperature value time, to described electrokinetic cell input cold air, described electrokinetic cell is cooled;
When described comparison result be the temperature of electrokinetic cell lower than the second preset temperature value time, to described electrokinetic cell input hot-air, described electrokinetic cell is heated.
The heat control method of above-mentioned electrokinetic cell, preferably, carries out heating to described electrokinetic cell input hot-air to described electrokinetic cell and comprises:
The hot-air of subtend electrokinetic cell input carries out real time temperature detection;
When the hot-air of described input does not meet the 3rd preset temperature value, described 3rd preset temperature value is warming up to described hot-air;
To the hot-air input power battery of intensification be completed, described electrokinetic cell will be heated.
This application provides a kind of thermal control system of electrokinetic cell, comprising: controller; The first air channel be connected with described electrokinetic cell respectively, the second air channel and the 3rd air channel; The 4th air channel be connected with the second air channel with described first air channel respectively; Wherein, the first valve is provided with in described first air channel; The second valve and the first fan is provided with in described second air channel; The 3rd valve and the second fan is provided with in described 3rd air channel; The 4th valve is provided with in described 4th air channel; Described controller, for when the real time temperature of described electrokinetic cell is higher than the first preset temperature value, open described first valve and the 3rd valve, and control described second fan cool ambient air is inputted described electrokinetic cell by described first air channel and by described 3rd air channel discharge; When the real time temperature of described electrokinetic cell is lower than the second preset temperature value, open described second valve and the 4th valve, and control described first fan and extraneous hot-air is inputted described electrokinetic cell by described second air channel and passes the second air channel back by the first air channel and the 4th air channel.Adopt a kind of thermal control system of electrokinetic cell that the application provides, the cooling air channel of setting is different with heating air duct, makes full use of cool exterior air or hot-air cools electrokinetic cell or heats, and thermal control efficiency is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present application, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of prior art medium power battery wind circulating-heating and cooling system;
Fig. 2 is the structural representation of the thermal control system embodiment 1 of a kind of electrokinetic cell of the application;
Fig. 3 is a concrete structure schematic diagram of the thermal control system embodiment 1 of a kind of electrokinetic cell of the application;
Air flow schematic diagram when Fig. 4 is cooling electrokinetic cell of the thermal control system embodiment 1 of a kind of electrokinetic cell of the application;
Air flow schematic diagram when Fig. 5 is heating electrokinetic cell of the thermal control system embodiment 1 of a kind of electrokinetic cell of the application;
Fig. 6 is the structural representation of the thermal control system embodiment 2 of a kind of electrokinetic cell of the application;
Fig. 7 is a concrete structure schematic diagram of the thermal control system embodiment 2 of a kind of electrokinetic cell of the application;
Fig. 8 is the flow chart of the heat control method embodiment 1 of a kind of electrokinetic cell of the application;
Fig. 9 is a particular flow sheet of the heat control method embodiment 1 of a kind of electrokinetic cell of the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
This application provides a kind of thermal control system and control method of electrokinetic cell, this thermal control system and control method are applied to hybrid vehicle.
See Fig. 2, show the structural representation of the thermal control system embodiment 1 of a kind of electrokinetic cell that the application provides, the thermal control system of described electrokinetic cell comprises: the first valve 102, second air channel 103, second, air channel 101, first valve 104, the 3rd air channel 105, the 3rd valve 106, the 4th air channel 107, the 4th valve 108, first fan 109, second fan 110 and controller 111.
The one end in described first air channel 101 is connected with automobile external, and the other end is connected with electrokinetic cell, for passing into outside cold air to electrokinetic cell;
Described first valve 102 is arranged on the first air channel 101, and the folding of the first valve 102 controls unlatching or the closedown in described first air channel 101;
The one end in described second air channel 103 is connected with engine bin or blast pipe, and the other end is connected with electrokinetic cell, for the hot-air in engine bin or blast pipe is passed into electrokinetic cell;
Described second valve 104 is arranged on the second air channel 103, and the folding of the second valve 104 controls unlatching or the closedown in described second air channel 103;
The one end in described 3rd air channel 105 is connected with electrokinetic cell, and the other end is connected with automobile external, for the cold air or hot-air that pass into electrokinetic cell are discharged described thermal control system;
Described 3rd valve 106 is arranged on the 3rd air channel 105, and the folding of the 3rd valve 106 controls unlatching or the closedown in described 3rd air channel 105;
Described second fan 110 is arranged at the 3rd air channel 105, for being accelerated to export described thermal control system by the hot-air of electrokinetic cell;
Described 4th one end, air channel 107 is connected with the first air channel 101, and the other end is connected with the second air channel 103, for being communicated with the first air channel 101 and the second air channel 103;
Described 4th valve 108 is arranged on the 4th air channel 107, and the folding of the 4th valve 106 controls unlatching or the closedown in described 4th air channel 105;
First fan 109 is arranged at the second air channel 103, for being accelerated to be delivered to described electrokinetic cell by the hot-air in the second air channel 103;
Described first valve, the second valve, the 3rd valve and the 4th valve are in normally off, adopt electromagnetically operated valve, directly can receive the signal of telecommunication that controller sends, regulate the opening and closing of valve.
The temperature range of operation of preset power battery, the upper limit of this temperature range preset is the first preset temperature value, and lower limit is the second preset temperature value, when the real time temperature of electrokinetic cell is in this preset temperature range, the serviceabilities of electrokinetic cell etc. are unaffected, do not need to carry out heating or cooling; When the real time temperature of electrokinetic cell exceeds this preset temperature range, the serviceability of electrokinetic cell etc. will be affected, and accordingly, need to heat it or cool.
Described controller 111, for when described real time temperature is higher than described first preset temperature value, control described first valve 102, the 3rd valve 106 and the second fan 110 to open, outside cold air passes into electrokinetic cell by the first air channel 101, and is discharged by the 3rd air channel 105; When described real time temperature is lower than described second preset temperature value, control described second valve 104, the 4th valve 108 and the first fan 109 to open, outside hot-air passes into electrokinetic cell by the second air channel 104, the cold air of hot-air and electrokinetic cell carries out exchanging and passes the second air channel 103 back by the first air channel 101 and the 4th air channel 107, then continues to enter in electrokinetic cell under the effect of the second fan 110.
When described real time temperature is higher than described first preset temperature value, controller 111 controls described first valve 102, described 3rd valve 106 and the second fan 110 are opened, first air channel 101, electrokinetic cell and the 3rd air channel 105 form the path of gas, hot-air in the electrokinetic cell be connected with the 3rd air channel 105 is discharged by the second fan 110, electrokinetic cell internal pressure reduces, outside cold air enters electrokinetic cell by the first air channel 101, hot-air in electrokinetic cell and outside cold air carry out flowing and exchange, reduce the temperature of electrokinetic cell, air (cold air comprising hot-air He enter) in electrokinetic cell is discharged by the 3rd air channel 105 under the effect of the second fan 110,
When described real time temperature is lower than described second preset temperature value, controller 111 controls described second valve 104, described 4th valve 108 and the first fan 109 are opened, second air channel 103, electrokinetic cell, first air channel 101 and the 4th air channel 107 form the path of gas, the hot-air of its exterior enters electrokinetic cell by described second air channel 103 under the effect of the first fan 109, hot-air automatically rises in electrokinetic cell, in hot-air and electrokinetic cell, cold air carries out convective heat exchange, improve the temperature of electrokinetic cell, along with the hot-air entered in electrokinetic cell increases, the air through heat exchange in electrokinetic cell is expelled to the first air channel 101, by being communicated with the 4th air channel 107 in the first air channel 101 and the second air channel 103, by this air transmission through heat exchange to the second air channel 103, again enter electrokinetic cell and carry out heat exchange together with entering the hot-air in the second air channel 103, hot air circulate, make full use of heat.
When controller detect the real time temperature that obtains in preset temperature range namely lower than the first preset temperature value and higher than the second preset temperature value time, stop the heating to electrokinetic cell or cooling, each valve opened recovers closed condition.
Concrete structure schematic diagram shown in Figure 3, described controller 111 comprises: battery temperature detector 1111, comparative device 1112, first signal generator 1113, secondary signal generator 1114 and the 3rd signal generator 1115.
Wherein, described battery temperature detector 1111, for detecting the real time temperature of described electrokinetic cell;
Electrokinetic cell runs in the car, when automobile is arranged in cold or thermal environment, the temperature of electrokinetic cell is also affected, and carries out thermal control for carrying out temperature to electrokinetic cell, need to detect the real time temperature of electrokinetic cell, according to real time temperature, thermal control is carried out to electrokinetic cell, temperature regulates.
Wherein, described comparative device 1112, for comparing described real time temperature with the first preset temperature value and the second preset temperature value respectively;
The temperature range that electrokinetic cell normally runs can obtain according to the composition material of electrokinetic cell.
In practical application, the temperature range upper limit of electrokinetic cell is generally about 55 DEG C, and outdoor temperature is up to about 40 DEG C, and the air outside car directly can carry out cooling process to electrokinetic cell.
The temperature range of operation of preset power battery, the upper limit of this temperature range preset is the first preset temperature value, and lower limit is the second preset temperature value, when the real time temperature of electrokinetic cell is in this preset temperature range, the serviceabilities of electrokinetic cell etc. are unaffected, do not need to carry out heating or cooling; When the real time temperature of electrokinetic cell exceeds this preset temperature range, the serviceability of electrokinetic cell etc. will be affected, and need to heat it or cool.
Wherein, described first signal generator 1113, for when the comparison result of described comparative device 1112 be described real time temperature higher than described first preset temperature value time, send the first signal controlling described first valve 102 and the unlatching of the 3rd valve 106, when the comparison result of described comparative device 1112 be described real time temperature lower than described second preset temperature value time, send the secondary signal controlling described second valve 104 and the 4th valve 108 and open;
Wherein, described secondary signal generator 1114, for when described real time temperature is lower than described second preset temperature value, sends the first enabling signal of startup first fan 109;
When described real time temperature is lower than described second preset temperature value, need to carry out heat treated to electrokinetic cell, when secondary signal generator 1114 sends the first enabling signal of unlatching first fan 109, start the first fan, by the blowing hot air in the second air channel 103 to electrokinetic cell, the cold air of hot-air and electrokinetic cell carries out flowing heat exchange, and the temperature of electrokinetic cell raises.
Described first enabling signal is PWM(Pulse Width Modulation) enable signal, according to the duty ratio detecting the real time temperature that obtains and regulate this first enabling signal, real time temperature is lower, the larger with the duty ratio of enabling signal, the opening time of the first fan 109 within a time cycle is longer, dwell time is shorter, longer to the effective heating time of electrokinetic cell.
Wherein, described 3rd signal generator 1115, for when described real time temperature is higher than described first preset temperature value, sends the second enabling signal of startup second fan 110;
When described real time temperature is higher than described first preset temperature value, need to carry out cooling processing to electrokinetic cell, 3rd signal generator 1115 sends the second enabling signal of unlatching second fan 110, start the second fan 110 and extract hot-air in electrokinetic cell out, reduce the air pressure of electrokinetic cell, make the hot-air in electrokinetic cell and outside cold air carry out flowing to exchange, reduce the temperature of electrokinetic cell.
Described second enabling signal is PWM enable signal, according to the duty ratio detecting the real time temperature that obtains and regulate this second enabling signal, real time temperature is higher, the duty ratio of the second enabling signal is larger, the opening time of the second fan 110 within a time cycle is longer, dwell time is shorter, longer to the effective cooling time of electrokinetic cell.
In actual enforcement, controller can adopt electronic control unit ECU(Electronic ControlUnit).
See Fig. 4, show air flow schematic diagram when cooling electrokinetic cell, in figure, arrow illustrates the flow direction of air.
Outside air enters electrokinetic cell by the first air channel 101, then discharges real-time thermal control system by the 3rd air channel 105.
When the comparison result of comparative device 1112 be the real time temperature of electrokinetic cell higher than the first preset temperature value time, the performance of electrokinetic cell is vulnerable to temperatures involved, first signal generator 1113 sends the first signal of control first valve 102 and the unlatching of the 3rd valve 106, first valve 102 and the 3rd valve 106 are opened, and the second valve 103 and the 4th valve 108 keep closed condition; 3rd signal generator 1115 sends the second enabling signal of unlatching second fan 109, and the real time temperature of foundation electrokinetic cell regulates the duty ratio of the second enabling signal; First air channel 101, electrokinetic cell and the 3rd air channel 105 have been communicated with the hot-air of automobile external cold air and electrokinetic cell, the hot-air of electrokinetic cell is extracted out by the 3rd air channel 105 and is discharged thermal control system by the second fan 110, reduce the air pressure of electrokinetic cell, cold air outside automobile is transferred to electrokinetic cell by the first air channel 101, make the hot-air in electrokinetic cell and outside cold air carry out flowing to exchange, reduce the temperature of electrokinetic cell, complete the effect that cooled cold air is subject to the second fan 110, discharge automobile by the 3rd air channel 105.
See Fig. 5, show air flow schematic diagram when heating electrokinetic cell, in figure, arrow illustrates the flow direction of air.
Outside air enters electrokinetic cell by the second air channel 103, then gets back to the second air channel 103 by the first air channel 101 and the 4th air channel 107, and air continues to enter electrokinetic cell, hot air circulate heat release.
When the comparison result of comparative device 1112 be the real time temperature of electrokinetic cell lower than the second preset temperature value time, the performance of electrokinetic cell is vulnerable to low temperature effect, first signal generator 1113 sends the secondary signal of control second valve 104 and the unlatching of the 4th valve 108, second valve 104 and the 4th valve 108 are opened, first valve 102 and the 3rd valve 106 keep closed condition first valve 102 to be close to the outer side of car being positioned at the first air channel 101, first valve 102 is closed, first air channel 101 is no longer connected with automobile external, 3rd valve 106 is closed, 3rd air channel 105 is no longer connected with automobile external, secondary signal generator 1114 sends the first enabling signal of unlatching first fan 109, and the real time temperature of foundation electrokinetic cell regulates the duty ratio of the first enabling signal, hot-air enters electrokinetic cell under the effect of the first fan 109, in hot-air and electrokinetic cell, cold air carries out convective heat exchange, improve the temperature of electrokinetic cell, along with the hot-air entered in electrokinetic cell increases, the air through heat exchange in electrokinetic cell is expelled to the first air channel 101, by being communicated with the 4th air channel 107 in the first air channel 101 and the second air channel 103, by this air transmission through heat exchange to the second air channel 103, again enter electrokinetic cell and carry out heat exchange together with the hot-air entering the second air channel 103 is under the effect of the first fan 109, hot air circulate, make full use of heat.
From the above, the thermal control system of a kind of electrokinetic cell that the present embodiment provides, comprising: the first air channel, the first valve, the second air channel, the second valve, the 3rd air channel, the 3rd valve, the 4th air channel, the 4th valve, the first fan, the second fan and controller.Controller is according to the real time temperature of electrokinetic cell, described real time temperature is compared with described first preset temperature value and the second preset temperature value respectively, when described real time temperature is higher than described first preset temperature value, open described first valve, the 3rd valve and the second fan, first air channel, electrokinetic cell and the 3rd air channel form the path of gas, cooled to electrokinetic cell input cold air by described first air channel, and after cooling, air is discharged by described 3rd air channel; When described real time temperature is lower than described second preset temperature value, open described second valve, the first fan and the 4th valve, second air channel, electrokinetic cell, the first air channel and the 4th air channel form the path of gas, heated to electrokinetic cell input hot-air by described second air channel, and the air after heating is transmitted back to described second air channel by described first air channel and described 4th air channel.The temperature of electrokinetic cell is regulated in real time, electrokinetic cell is operated in the normal temperature range run, protects the performance of electrokinetic cell.Adopt different cooling air channels and heating air duct, make full use of cool exterior air or hot-air cools electrokinetic cell or heats, thermal control efficiency is high.
See Fig. 6, show the structural representation of the thermal control system embodiment 2 of a kind of electrokinetic cell that the application provides, the structure of the present embodiment is the structure based on embodiment 1, also comprises: heater 112.
A concrete structure schematic diagram shown in Figure 7, described controller 111 also comprises: air temperature detector 1116, determining device 1117 and the 4th signal generator 1118.
Wherein, described air temperature detector 1116, for when heating electrokinetic cell, detects the temperature by the hot-air in the second air channel 103 in real time;
When temperature of powered cell is lower than the second preset temperature value, need to heat electrokinetic cell, for ensureing heating effect, when the hot air temperature come from engine bin or blast pipe attachment transmission is not enough to carry out Fast Heating to electrokinetic cell, be delivered to electrokinetic cell again after needing that hyperthermic treatment is carried out to this hot-air, electrokinetic cell is heated.
Air temperature detector 1116 in controller 111 is detected in real time to the temperature being entered the hot-air of electrokinetic cell by the second air channel 103, and is transferred to determining device 1117 judges detecting the real time temperature that obtains.
Wherein, described determining device 1117, for judging that described air temperature detector detects whether satisfied 3rd preset temperature value of temperature of the hot-air by the second air channel 103 obtained;
The 3rd preset temperature value is stored in determining device 1117, when the hot air temperature come from engine bin or blast pipe attachment transmission meets the 3rd preset temperature value, do not need to carry out hyperthermic treatment to this hot-air, directly this hot-air is delivered to electrokinetic cell, electrokinetic cell is heated; When described hot air temperature does not meet the 3rd preset temperature value, when namely the temperature of described hot-air is lower than the 3rd preset temperature value, need to carry out hyperthermic treatment to described hot-air, make it to reach the 3rd preset temperature value.
Wherein, described 4th signal generator 1118, during for judging that when described determining device 1117 hot-air that described second air channel 103 inputs does not meet the 3rd preset temperature value, sends the heating starting signal starting heater 112 and heat described hot-air;
Wherein, described heater 112 is arranged in the second air channel 103, when hot-air for inputting when described second air channel 103 not meeting the 3rd preset temperature value, receiving the heating starting signal that the 4th signal generator 1118 sends, described hot air being warming up to the 3rd preset temperature value.
When determining device 1117 is according to the 3rd preset temperature value, when temperature air temperature detector 1116 being detected to the hot-air obtained judges not meet described 3rd preset temperature value, heater 112 is needed to carry out hyperthermic treatment to described hot-air, now the 4th signal generator 1118 sends heating starting signal to heater 112, heater 112 starts after receiving described heating starting signal, start entering the hot-air in the second air channel 103 and being heated by the air that the first air channel 101 and the transmission of the 4th air channel 107 come, described hot air is warming up to the 3rd preset temperature value.
From the above, the thermal control system of a kind of electrokinetic cell that the present embodiment provides, when heating electrokinetic cell, air temperature detector detects the temperature of the hot-air by the second air channel in real time, when determining device judges that the hot-air of described second air channel input does not meet the 3rd preset temperature value, 4th signal generator sends the heating starting signal starting heater and heat described hot-air, heater starts after receiving described heating starting signal, start entering the hot-air in the second air channel and being heated by the air that the first air channel and the transmission of the 4th air channel come.
Corresponding with the thermal control system embodiment of a kind of electrokinetic cell that above-mentioned the application provides, present invention also provides a kind of heat control method of electrokinetic cell.
See Fig. 8, show the flow chart of the heat control method embodiment 1 of a kind of electrokinetic cell that the application provides, comprising:
Step S101: the temperature detecting electrokinetic cell in real time, and described real time temperature is compared with described first preset temperature value and the second preset temperature value respectively;
Electrokinetic cell runs in the car, when automobile is arranged in cold or thermal environment, the temperature of electrokinetic cell is also affected, and carries out thermal control for carrying out temperature to electrokinetic cell, need to detect the real time temperature of electrokinetic cell, according to real time temperature, thermal control is carried out to electrokinetic cell, temperature regulates.
The temperature range that electrokinetic cell normally runs can obtain according to the composition material of electrokinetic cell.
The temperature range of operation of preset power battery, when the real time temperature of electrokinetic cell is in this preset temperature range, the serviceability of electrokinetic cell etc. are unaffected, do not need to carry out heating or cooling; When the real time temperature of electrokinetic cell exceeds this preset temperature range, the serviceability of electrokinetic cell etc. will be affected, and need to heat it or cool.
Step S102: when described comparison result be the temperature of electrokinetic cell higher than the first preset temperature value time, to described electrokinetic cell input cold air, described electrokinetic cell is cooled;
When the temperature of described electrokinetic cell is higher than described first preset temperature value, need to carry out cooling processing to electrokinetic cell, controller 111 sends the first signal controlling first valve 102 and the 3rd valve 106 is opened, and the first air channel 101, electrokinetic cell and the 3rd air channel 105 form the path of gas; Controller 111 sends the second enabling signal of unlatching second fan 110, start the second fan 110 and extract hot-air in electrokinetic cell out, reduce the air pressure of electrokinetic cell, outside cold air enters electrokinetic cell by the first air channel 101, hot-air in electrokinetic cell and outside cold air carry out flowing and exchange, and reduce the temperature of electrokinetic cell.
Step S103: when described comparison result be the temperature of electrokinetic cell lower than the second preset temperature value time, to described electrokinetic cell input hot-air, described electrokinetic cell is heated.
When the temperature of described electrokinetic cell is lower than described second preset temperature value, need to carry out heat treated to electrokinetic cell, controller 111 sends secondary signal and controls the second valve 104 and the 4th valve 108 is opened, and the second air channel 103, electrokinetic cell, the first air channel 101 and the 4th air channel 107 form the path of gas; Controller 111 sends the first enabling signal of unlatching first fan 109, starts the first fan 109, and will enter the blowing hot air in the second air channel 103 to electrokinetic cell, the cold air of hot-air and electrokinetic cell carries out flowing heat exchange, raises the temperature of electrokinetic cell.
See the particular flow sheet shown in Fig. 9, step S103 specifically comprises:
Step S1031: the hot-air of subtend electrokinetic cell input carries out real time temperature detection;
When temperature of powered cell is lower than the second preset temperature value, need to heat electrokinetic cell, for ensureing heating effect, when the hot air temperature come from engine bin or blast pipe attachment transmission is not enough to carry out Fast Heating to electrokinetic cell, be delivered to electrokinetic cell again after needing that hyperthermic treatment is carried out to this hot-air, electrokinetic cell is heated.
The temperature being entered the hot-air of electrokinetic cell by the second air channel 103 is detected in real time.
When the hot air temperature come from engine bin or blast pipe attachment transmission meets the 3rd preset temperature value, do not need to carry out hyperthermic treatment to this hot-air, directly this hot-air is delivered to electrokinetic cell, electrokinetic cell is heated; When described hot air temperature does not meet the 3rd preset temperature value, when namely the temperature of described hot-air is lower than the 3rd preset temperature value, needs to carry out hyperthermic treatment to described hot-air, make it to reach predeterminated position value.
Step S1032: when the hot-air of described input does not meet the 3rd preset temperature value, described 3rd preset temperature value is warming up to described hot-air;
When the temperature of described hot-air does not meet the 3rd preset temperature value, namely time lower than the 3rd preset temperature value, controller 111 sends heating starting signal to the heater 112 being arranged at the second air channel 103, heater 112 starts, the hot-air started entering the second air channel 103 carries out hyperthermic treatment, is warming up to described 3rd preset temperature value.
Step S1033: will the hot-air input power battery of intensification be completed, described electrokinetic cell is heated.
Electrokinetic cell is entered under completing the effect of hot-air first fan 109 in the second air channel 103 of hyperthermic treatment, hot-air rises automatically, in hot-air and electrokinetic cell, cold air carries out convective heat exchange, improve the temperature of electrokinetic cell, along with the hot-air entered in electrokinetic cell increases, the air through heat exchange in electrokinetic cell is expelled to the first air channel 101, by being communicated with the 4th air channel 107 in the first air channel 101 and the second air channel 103, by this air transmission through heat exchange to the second air channel 103, real time temperature detection is carried out together with entering the hot-air in the second air channel 103, when the air (comprise the hot-air that enters the second air channel and air) in the electrokinetic cell that come by the first air channel and the transmission of the 4th air channel entering the second air channel 103 is lower than the 3rd preset temperature value, after heat temperature raising process, again enter electrokinetic cell and carry out heat exchange, hot air circulate, make full use of heat.
From the above, the heat control method of a kind of electrokinetic cell that the present embodiment provides, comprising: the temperature detecting electrokinetic cell in real time, and is compared with described first preset temperature value and the second preset temperature value respectively by described real time temperature; When described comparison result be the temperature of electrokinetic cell higher than the first preset temperature value time, start the first valve and the 3rd valve, open the path that the first air channel, electrokinetic cell and the 3rd air channel form gas, to described electrokinetic cell input cold air, described electrokinetic cell is cooled by described cooling channel; When described comparison result be the temperature of electrokinetic cell lower than the second preset temperature value time, start the second valve and the 4th valve, open the heating paths that the second air channel, electrokinetic cell, the first air channel and the 4th air channel form, to described electrokinetic cell input hot-air, described electrokinetic cell is heated by described heating paths.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, between each embodiment same or similar part mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the application.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a thermal control system for electrokinetic cell, is characterized in that, the thermal control system of described electrokinetic cell is applied to hybrid vehicle, comprising:
Controller;
The first air channel be connected with described electrokinetic cell respectively, the second air channel and the 3rd air channel;
The 4th air channel be connected with the second air channel with described first air channel respectively;
Wherein, the first valve is provided with in described first air channel;
The second valve and the first fan is provided with in described second air channel;
The 3rd valve and the second fan is provided with in described 3rd air channel;
The 4th valve is provided with in described 4th air channel;
Described controller, for when the real time temperature of described electrokinetic cell is higher than the first preset temperature value, open described first valve and the 3rd valve, and control described second fan cool ambient air is inputted described electrokinetic cell by described first air channel and by described 3rd air channel discharge; When the real time temperature of described electrokinetic cell is lower than the second preset temperature value, open described second valve and the 4th valve, and control described first fan and extraneous hot-air is inputted described electrokinetic cell by described second air channel and passes the second air channel back by the first air channel and the 4th air channel.
2. the thermal control system of electrokinetic cell according to claim 1, is characterized in that, described controller comprises:
Battery temperature detector, for detecting the real time temperature of described electrokinetic cell;
Comparative device, for comparing described real time temperature with described first preset temperature value and the second preset temperature value respectively;
First signal generator, for when described real time temperature is higher than the first preset temperature value, send the first signal controlling described first valve and the 3rd valve opening, when described real time temperature is lower than the second preset temperature value, send the secondary signal controlling described second valve and the 4th valve opening;
Secondary signal generator, for when described real time temperature is lower than described second preset temperature value, sends the first enabling signal of startup first fan;
3rd signal generator, for when described real time temperature is higher than described first preset temperature value, sends the second enabling signal of startup second fan.
3. the thermal control system of electrokinetic cell according to claim 2, is characterized in that, also comprises:
Heater, for when the hot-air of described second air channel input does not meet the 3rd preset temperature value, by described hot air to the 3rd preset temperature value.
4. the thermal control system of electrokinetic cell according to claim 3, is characterized in that, described controller also comprises:
Air temperature detector, for when heating electrokinetic cell, detects the temperature by the hot-air in the second air channel in real time;
Determining device, for judging that described air temperature detector detects whether satisfied 3rd preset temperature value of temperature of the hot-air by the second air channel obtained;
4th signal generator, during for judging that when described determining device the hot-air of described second air channel input does not meet the 3rd preset temperature value, sends the heating starting signal starting heater and heat described hot-air.
5. the thermal control system of electrokinetic cell according to claim 4, is characterized in that, described first enabling signal is pulse width modulation (PWM) enable signal.
6. the thermal control system of electrokinetic cell according to claim 4, is characterized in that, described second enabling signal is pulse width modulation (PWM) enable signal.
7. the thermal control system of electrokinetic cell according to claim 1, is characterized in that, described first valve, the second valve, the 3rd valve and the 4th valve are electromagnetically operated valve.
8. a heat control method for electrokinetic cell, is characterized in that, comprising:
The temperature of real-time detection electrokinetic cell, and described real time temperature is compared with described first preset temperature value and the second preset temperature value respectively;
When described comparison result be the temperature of electrokinetic cell higher than the first preset temperature value time, to described electrokinetic cell input cold air, described electrokinetic cell is cooled;
When described comparison result be the temperature of electrokinetic cell lower than the second preset temperature value time, to described electrokinetic cell input hot-air, described electrokinetic cell is heated.
9. the heat control method of electrokinetic cell according to claim 8, is characterized in that, carries out heating comprise to described electrokinetic cell input hot-air to described electrokinetic cell:
The hot-air of subtend electrokinetic cell input carries out real time temperature detection;
When the hot-air of described input does not meet the 3rd preset temperature value, described 3rd preset temperature value is warming up to described hot-air;
To the hot-air input power battery of intensification be completed, described electrokinetic cell will be heated.
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| CN201210199038.7A CN102723535B (en) | 2012-06-15 | 2012-06-15 | Heat control system and method of power battery |
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| CN102723535A (en) | 2012-10-10 |
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