CN104900940A - Battery pack temperature control system and battery pack temperature control method - Google Patents
Battery pack temperature control system and battery pack temperature control method Download PDFInfo
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- CN104900940A CN104900940A CN201510382521.2A CN201510382521A CN104900940A CN 104900940 A CN104900940 A CN 104900940A CN 201510382521 A CN201510382521 A CN 201510382521A CN 104900940 A CN104900940 A CN 104900940A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a battery pack temperature control system, which comprises a heat conduction and insulation part, a heat conduction part and a temperature control part, wherein the heat conduction and insulation part is used for being filled among monomers in a battery pack to implement the conduction of the heat of the battery pack; the monomers in the battery pack are arranged according to a predetermined arrangement rule; the temperature control part is connected with the heat conduction part, and is used for receiving temperature signals acquired by temperature sensors, analyzing the temperature signals according to a preset program to obtain an analysis result, choosing a control mode corresponding to the analysis result and controlling the operating state of the heat conduction part according to a control signal outputted by the control mode to control the temperature of the battery pack. The system can increase the efficiency, safety and cycle life of the battery pack. The invention also discloses a battery pack temperature control method.
Description
Technical field
The present invention relates to field of lithium, particularly relate to a kind of battery pack temperature control system and method.
Background technology
Battery in electric automobile, particularly lithium battery (comprising cobalt acid lithium, LiMn2O4, LiFePO4, titanium lithium, ternary lithium battery etc.) is used, such as notebook computer, mobile phone, wind power generation, submarine, electric bicycle, electric automobile etc. on a large scale.Although it is high that lithium battery has energy density, specific power is large, the advantage such as have extended cycle life, but also there is long-time discharge and recharge simultaneously and produce amount of heat, low temperature cannot charge, meet the defects such as water easy firing, use especially by connection in series-parallel composition battery pack, the battery pack used as electric automobile is made up of hundreds of cell, uneven heat build-up can be produced in battery pack during work, further deterioration single cell operation environment, produce vicious circle, cause battery pack balancing poor, short circuit, premature failure, even cause fire, blast waits severe safety accident, the instructions for use of electric automobile 8 years or 120,000 kilometers cannot be met.
At present, prior art is being spaced by heat dissipation channel and cell, and in heat dissipation channel, supply and exhaust or water circulation heat conduction reach the object that battery pack temperature controls.The method is not suitable for cylindrical lithium battery, and uses cylindrical lithium battery to become main flow just gradually at present; And the method cannot ensure effective contact area of cell and heat dissipation channel, causes heat conduction efficiency undesirable; Heat dissipation channel takes up room comparatively large, is unfavorable for using in the confined space.How providing one can to solve the problem battery pack temperature control method and system, is those skilled in the art's technical issues that need to address.
Summary of the invention
The object of this invention is to provide a kind of battery pack temperature control system, this system can make battery pack each cell temperature equalization, controlled by heat conductive insulating parts and conducting-heat elements and temperature control unit, reach expansion battery pack environment for use, improve battery pack efficiency, fail safe and service life cycle.
For solving the problems of the technologies described above, the invention provides a kind of temperature control system of battery pack, comprising: heat conductive insulating parts, conducting-heat elements and temperature control unit; Wherein,
Described heat conductive insulating parts, for being filled in described battery pack between each monomer, realize described battery pack heat transfer; Wherein, the monomer in described battery pack is regularly arranged according to predetermined arrangement;
Described temperature control unit is connected with described conducting-heat elements, for receiving the temperature signal that temperature sensor gathers; Described temperature signal is analyzed according to preset program, obtains analysis result; Select the control mode corresponding with described analysis result, and control the operating state of described conducting-heat elements according to the control signal that described control mode exports, described battery pack temperature is controlled.
Wherein, the execution switch in described temperature control unit is connected with described conducting-heat elements; Described temperature control unit is connected with host computer by external control interface, and described conducting-heat elements is connected with external refrigeration system; Described control mode comprises:
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack in predetermined balanced range time, described control mode is static, described control signal controls described execution switch and disconnects, and conducting-heat elements does not work;
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack not in predetermined balanced range time, described control mode is Inner eycle, described control signal controls described execution switch and closes, conducting-heat elements work; Or,
When described analysis result is that in described battery pack, each cell temperature is not in predetermined temperature range or when needing to utilize described battery pack heat production, described control mode is outer circulation, and described control signal controls described execution switch and closes, conducting-heat elements work; Meanwhile, described control signal is sent to described host computer by described external control interface, described host computer controls described external refrigeration system works according to described control signal.
Wherein, described conducting-heat elements is specially the heat pipe with cooling fluid, and wherein, described heat pipe and each monomer in described battery pack are apart from identical.
Wherein, described temperature control system also comprises: arrange reflective isolating film or heat reflection insulating coating in the interior of placing described battery pack.
Wherein, described temperature control system also comprises: between described battery pack and described casing and/or between described battery pack and internal controller, arrange partiting thermal insulation parts.
Wherein, described heat conductive insulating parts are thermal conductive insulation glue.
The present invention also provides a kind of temperature-controlled process of battery pack, and battery pack realizes heat transfer by heat conductive insulating parts, comprising:
Receive the temperature signal that temperature sensor gathers;
Described temperature signal is analyzed according to preset program, obtains analysis result;
Select the control mode corresponding with described analysis result, and control the operating state of conducting-heat elements according to the control signal that described control mode exports, described battery pack temperature is controlled.
Wherein, the control mode that described selection is corresponding with described analysis result comprises:
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack in predetermined balanced range time, described control mode is static;
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack not in predetermined balanced range time, described control mode is Inner eycle;
When described analysis result is that in described battery pack, each cell temperature is not in predetermined temperature range or when needing to utilize described battery pack heat production, described control mode is outer circulation.
Wherein, the described control signal exported according to described control mode controls the operating state of conducting-heat elements, carries out control comprise described battery pack temperature:
When described control mode is static, described control signal controls to perform switch and disconnects, and conducting-heat elements does not work;
When described control method is Inner eycle, described control signal controls described execution switch and closes, conducting-heat elements work;
When described control method is outer circulation, described control signal controls described execution switch and closes, conducting-heat elements work; Meanwhile, described control signal is sent to host computer by external control interface, described host computer controls external refrigeration system works according to described control signal.
The temperature control system of a kind of battery pack provided by the present invention, comprising: heat conductive insulating parts, conducting-heat elements and temperature control unit; Wherein, described heat conductive insulating parts, for being filled in described battery pack between each monomer, realize described battery pack heat transfer; Wherein, the monomer in described battery pack is regularly arranged according to predetermined arrangement; Described temperature control unit is connected with described conducting-heat elements, for receiving the temperature signal that temperature sensor gathers; Described temperature signal is analyzed according to preset program, obtains analysis result; Select the control mode corresponding with described analysis result, and control the operating state of described conducting-heat elements according to the control signal that described control mode exports, described battery pack temperature is controlled; This system can make battery pack each cell temperature equalization, controlled, reaches expansion battery pack environment for use, improves battery pack efficiency, fail safe and service life cycle.
Accompanying drawing explanation
In order to the technical scheme of the clearer explanation embodiment of the present invention or prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, 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.
The structured flowchart of the battery pack temperature control system that Fig. 1 provides for the embodiment of the present invention;
The schematic diagram of the integral battery door group temperature control system that Fig. 2 provides for the embodiment of the present invention;
The flow chart of the battery pack temperature control method that Fig. 3 provides for the embodiment of the present invention.
Embodiment
Core of the present invention is to provide a kind of battery pack temperature control system, this system can make battery pack each cell temperature equalization, controlled by heat conductive insulating parts and conducting-heat elements and temperature control unit, reach expansion battery pack environment for use, improve battery pack efficiency, fail safe and service life cycle.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, the structured flowchart of the battery pack temperature control system that Fig. 1 provides for the embodiment of the present invention; This system can comprise: heat conductive insulating parts 200, conducting-heat elements 300 and temperature control unit 100; Wherein,
Described heat conductive insulating parts 200, for being filled in described battery pack between each monomer, realize described battery pack heat transfer; Wherein, the monomer in described battery pack is regularly arranged according to predetermined arrangement;
Wherein, the specific environment used due to battery pack here may be different, and therefore, its arrangement mode is different, and such as, arrangement mode for the battery pack in electric automobile just may be different with the arrangement mode for the battery pack in other electrically powered machines.Therefore in the present invention no matter monomer according to the battery pack of the regularly arranged rear formation of predetermined arrangement concrete shape how, the present invention only to need in battery pack falling heat-transfer insulating element 200 between each monomer.Concrete mode can be: according to the arrangement of putting of cell, heat conductive insulating parts require that casting is as a whole by mould, cell is put into each space, and wherein, preferably, described heat conductive insulating parts are thermal conductive insulation glue; Namely its elasticity can be utilized to ensure abundant, the close contact on thermal conductive insulation glue and cell surface, and contact area exceedes 85% of battery table area, can realize heat transfer fast.Overall thermal conductive insulation glue module is conducive to temperature equalization, expands heat-conducting area, simultaneously due to the performance of heat conductive insulating parts, makes coated fire-retardant, insulation area more than 85% effectively improve the fail safe of battery.
Described temperature control unit 100 is connected with described conducting-heat elements 300, for receiving the temperature signal that temperature sensor 110 gathers; Described temperature signal is analyzed according to preset program, obtains analysis result; Select the control mode corresponding with described analysis result, and control the operating state of described conducting-heat elements according to the control signal that described control mode exports, described battery pack temperature is controlled.
Wherein, can for having the heat pipe of cooling fluid.Heat pipe can be positioned at cell top or side, bottom, in order to arrange conveniently and consider the working effect of heat pipe, can be consistent with battery pack orientation by heat conduction pipeline, arrangement mode as shown in Figure 1, but the conducting-heat elements in the present invention is not limited to the form of this kind of setting, other the form that arranges of conducting-heat elements is also passable, and conducting-heat elements also can not be heat pipe.And, here in order to optimize the temperature control effect of heat pipe to battery pack further, can be consistent with each cell distance by heat pipe.Namely preferred, described conducting-heat elements can for having the heat pipe of cooling fluid, and wherein, described heat pipe is positioned at top or the bottom of described battery pack, and heat pipe and each monomer in described battery pack are apart from identical.
Wherein, if after analyzing temperature signal, find the system worked well of battery pack, so can save energy, conducting-heat elements is not worked, the heat conductive insulating parts only utilizing native system self to have just can realize the heat transfer of battery pack; If find, battery pack temperature is abnormal, can select to allow conducting-heat elements work, help system temperature equalization, such as, when temperature is too high, conducting-heat elements is utilized to lower the temperature etc. to battery pack, here control form, and control temperature and scope all need the type of service concrete according to battery pack to arrange.The preferred embodiment that native system provides a kind of preferred conducting-heat elements to have three kinds of working conditions is as follows:
Preferably, the execution switch in described temperature control unit is connected with described conducting-heat elements; Described temperature control unit is connected with host computer by external control interface, and described conducting-heat elements is connected with external refrigeration system; Described control mode comprises:
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack in predetermined balanced range time, described control mode is static, described control signal controls described execution switch and disconnects, and conducting-heat elements does not work;
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack not in predetermined balanced range time, described control mode is Inner eycle, described control signal controls described execution switch and closes, conducting-heat elements work; Or,
When described analysis result is that in described battery pack, each cell temperature is not in predetermined temperature range or when needing to utilize described battery pack heat production, described control mode is outer circulation, and described control signal controls described execution switch and closes, conducting-heat elements work; Meanwhile, described control signal is sent to described host computer by described external control interface, described host computer controls described external refrigeration system works according to described control signal.
Concrete example illustrates the specific works process of battery pack temperature control system in the present invention below: be full of cooling fluid in heat pipe, be divided into inner loop, outer loop and static (without forced flow state) three kinds of mode of operations: when cell temperature, harmony are all in allowed band, cooling fluid " static ", only plays certain temperature equalization effect; When cell temperature is in allowed band, and when harmony exceeds allowed band, power brick Inner eycle pattern opened by liquid pump, realizes forcing the effect of fast battery temperature equalization; When cell temperature exceeds allowed band, maybe when needs utilize battery operated produced heat, or when battery pack needs to heat, or when needing temperature equalization between battery pack and battery pack, open outer loop pattern, heat conduction pipeline is connected with battery pack external refrigeration system, realizes the repertoire such as heating-cooling and temperature equalization.Here the work of heat conduction pipeline can have same pump to carry out, and also conveniently can arrange the pump that Inner eycle has Inner eycle heat conduction pipeline, outer circulation has the pump of outer circulation heat conduction pipeline.
Temperature sensor can in the thermal conductive insulation glue between cell, ensure, with the reliable contacts of cell, to be uniformly distributed in battery pack.The setting position of the temperature sensor provided here is not unique, and the quantity used neither be unique, and just one preferred embodiment, namely can share a temperature sensor by several monomer here.Such as 100 cells can arrange 1 to 3 temperature sensor, and such form that arranges can either reduce costs, and also reduces the complexity of Operation system setting to a great extent, simplify the difficulty of line arrangement.
Preferably, native system also comprises: arrange reflective isolating film or heat reflection insulating coating in the interior of placing described battery pack.
Preferably, native system also comprises: between described battery pack and described casing and/or between described battery pack and internal controller, arrange partiting thermal insulation parts.
Wherein, except the insulation between batteries monomer battery, temperature control unit (impact that is subject to of elastic characteristic buffering cell of thermal conductive insulation glue), between battery pack and casing, between battery pack and internal controller, all set up heat insulation and insulation protection.Box house strengthens dividing plate between battery pack and internal controller, plays effect that is fixing, heat insulation, insulation; Wherein, preferably, it is upper and lower that battery set electrode insulating protecting plate is positioned at battery electrode welding position, can be fixed by insulating cement; Interior is covered with heat reflection insulation film or heat reflection insulating coating.
Based on technique scheme, the temperature control system of the battery pack that the embodiment of the present invention provides, this system can make battery pack each cell temperature equalization, controlled by heat conductive insulating parts and conducting-heat elements and temperature control unit, reach expansion battery pack environment for use, improve battery pack efficiency, fail safe and service life cycle.Be specially: heat conductive insulating rubber fully contacts with cell, effectively can carry out heat transfer, avoid air and to be detained the heat build-up caused; Heat conduction pipeline, thermal conductive insulation glue are evenly distributed on battery pack space, effectively impel battery pack temperature balanced, extend battery; Liquid flow in heat conduction pipeline ensure that and controls the temperature of battery pack, makes it remain at best charge and discharge operating temperature range, promotes battery pack operating efficiency; Heat conduction pipeline can carry out Inner eycle and outer circulation as required, partly can solve the heat source of whole-vehicle air-conditioner, heat energy is recycled during outer circulation; Thermal conductive insulation glue provides the insulation between cell, fire-retardant and buffering simultaneously, greatly improves the safety and reliability of battery pack; This invention power brick integration is higher, highly versatile, effectively can save space and reduce weight, for arrangement provides convenience.
Preferably, due to the space that battery occupies will be reduced, the present invention can when amount of monomer be a lot, these monomers are arranged according to pre-defined rule, after can make a reservation for respectively organize number, often organize in the manner described above formed a battery pack, obtain the battery pack of predetermined number, by described battery pack composition integral battery door group, its spread pattern can as shown in Figure 2, the schematic diagram of the integral battery door group temperature control system that Fig. 2 provides for the embodiment of the present invention; Wherein, integral battery door group 700 comprises battery pack 600, interior pump 610 can be used during Inner eycle, outer pump 620 can be used during outer circulation, namely when cell temperature, harmony are all in allowed band, cooling fluid " static ", M1 is 620, M2 is 610 and does not work, and the temperature control pipeline external interface of battery pack A is in closed condition; When cell temperature is in allowed band, and when harmony exceeds allowed band, M2 works, inner passage valve opening, and perform battery pack Inner eycle pattern, external interface is still in closed condition; When cell temperature exceeds allowed band, maybe when needs utilize battery operated produced heat, or when battery pack needs to heat, or when needing temperature equalization between battery pack and battery pack, open outer loop pattern, A heat conduction pipeline is connected valve opening with battery pack external refrigeration system, A inner loop valve closing, M2 closes, and M1 opens.
Above-mentionedly utilize integral battery door group to carry out temperature controlled system benefit in a particular embodiment can be: as still used the oval column cell of battery pack, adopt the present invention's special processing and fabricating heat conductive insulating rubber gang mould, every 40 cells are one group of A, and power brick contains 16 group A.Obviously heat radiation can be produced, effect that thermal balance, fire-retardant, fail safe significantly improve.Preferably, heat conduction pipeline fully contacts with heat conductive insulating rubber, the effect of reach thermal balance by thermal convection, inner-outer circulation, dispel the heat, heating.Battery pack temperature control system controls the inner-outer circulation of heat-conducting liquid, and according to collection signal automatic switchover operational mode.
Please refer to Fig. 3, the flow chart of the battery pack temperature control method that Fig. 3 provides for the embodiment of the present invention, the method can comprise:
The temperature signal that step s100, reception temperature sensor gather;
Step s110, described temperature signal to be analyzed according to preset program, obtain analysis result;
Step s120, select the control mode corresponding with described analysis result, and the operating state of the control signal control conducting-heat elements exported according to described control mode, described battery pack temperature is controlled.
Wherein, battery pack realizes temperature equalization by heat conductive insulating parts.
Preferably, the control mode that described selection is corresponding with described analysis result comprises:
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack in predetermined balanced range time, described control mode is static;
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack not in predetermined balanced range time, described control mode is Inner eycle;
When described analysis result is that in described battery pack, each cell temperature is not in predetermined temperature range or when needing to utilize described battery pack heat production, described control mode is outer circulation.
Preferably, the described control signal exported according to described control mode controls the operating state of conducting-heat elements, carries out control comprise described battery pack temperature:
When described control mode is static, described control signal controls to perform switch and disconnects, and conducting-heat elements does not work;
When described control method is Inner eycle, described control signal controls described execution switch and closes, conducting-heat elements work;
When described control method is outer circulation, described control signal controls described execution switch and closes, conducting-heat elements work; Meanwhile, described control signal is sent to host computer by external control interface, described host computer controls external refrigeration system works according to described control signal.
Illustrate below and to be described system effect of the present invention, such as certain model pure electric automobile in the prior art, its battery pack adopts ternary lithium battery, totally 640 column cells, each monomer 5250mAH/3.6V, composition 72V, 168AH power brick.It is arranged as every 8 monomers and comes in a non-tight box body, and 5 box bodys one group are placed between plastic insulation plate, and totally 40 groups are placed in metal gratings.Do not have temperature-adjusting device in power brick, internal volume is 0.13 cubic metre, completely by the heat radiation of power brick inner air convection.In use, often there is serious hot stack phenomenon, a lot of vigorous combustion serious accident even occurs; The actual electricity that utilizes of power brick is far smaller than theoretical value.
And in the present invention, above-mentioned model electric automobile still adopts ternary lithium battery, totally 1280 cylindric 18650 cells, often save 3.6V/2600mAH, composition 144V, 83.2AH power brick.It is arranged as 96 cells is one group, and have independent loops and access outer circulation temperature control system, be arranged in insulated enclosure box A body, box body has Control on Communication, electrical source of power and cooling system external tapping, exports 28.8V/31.2AH.On-vehicle battery bag has box body A20, and live amount 18kWH, power brick overall dimension is unchanged.
In specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above battery pack temperature control system provided by the present invention and method are described in detail.Apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection range of the claims in the present invention.
Claims (9)
1. a temperature control system for battery pack, is characterized in that, comprising: heat conductive insulating parts, conducting-heat elements and temperature control unit; Wherein,
Described heat conductive insulating parts, for being filled in described battery pack between each monomer, realize described battery pack heat transfer; Wherein, the monomer in described battery pack is regularly arranged according to predetermined arrangement;
Described temperature control unit is connected with described conducting-heat elements, for receiving the temperature signal that temperature sensor gathers; Described temperature signal is analyzed according to preset program, obtains analysis result; Select the control mode corresponding with described analysis result, and control the operating state of described conducting-heat elements according to the control signal that described control mode exports, described battery pack temperature is controlled.
2. temperature control system as claimed in claim 1, it is characterized in that, the execution switch in described temperature control unit is connected with described conducting-heat elements; Described temperature control unit is connected with host computer by external control interface, and described conducting-heat elements is connected with external refrigeration system; Described control mode comprises:
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack in predetermined balanced range time, described control mode is static, described control signal controls described execution switch and disconnects, and conducting-heat elements does not work;
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack not in predetermined balanced range time, described control mode is Inner eycle, described control signal controls described execution switch and closes, conducting-heat elements work; Or,
When described analysis result is that in described battery pack, each cell temperature is not in predetermined temperature range or when needing to utilize described during battery pack heat production, described control mode is outer circulation, and described control signal controls described execution switch and closes, conducting-heat elements work; Meanwhile, described control signal is sent to described host computer by described external control interface, described host computer controls described external refrigeration system works according to described control signal.
3. temperature control system as claimed in claim 1, it is characterized in that, described conducting-heat elements is specially the heat pipe with cooling fluid, and wherein, described heat pipe and each monomer in described battery pack are apart from identical.
4. temperature control system as claimed in claim 1, is characterized in that, also comprise: arrange reflective isolating film or heat reflection insulating coating in the interior of placing described battery pack.
5. temperature control system as claimed in claim 4, is characterized in that, also comprise: between described battery pack and described casing and/or between described battery pack and internal controller, arrange partiting thermal insulation parts.
6. temperature control system as claimed in claim 5, it is characterized in that, described heat conductive insulating parts are thermal conductive insulation glue.
7. a temperature-controlled process for battery pack, is characterized in that, battery pack realizes heat transfer by heat conductive insulating parts, comprising:
Receive the temperature signal that temperature sensor gathers;
Described temperature signal is analyzed according to preset program, obtains analysis result;
Select the control mode corresponding with described analysis result, and control the operating state of conducting-heat elements according to the control signal that described control mode exports, described battery pack temperature is controlled.
8. temperature-controlled process as claimed in claim 7, is characterized in that, the described selection control mode corresponding with described analysis result comprises:
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack in predetermined balanced range time, described control mode is static;
When described analysis result be in described battery pack each cell temperature in predetermined temperature range and the harmony of described battery pack not in predetermined balanced range time, described control mode is Inner eycle;
When described analysis result is that in described battery pack, each cell temperature is not in predetermined temperature range or when needing to utilize described battery pack heat production, described control mode is outer circulation.
9. temperature-controlled process as claimed in claim 8, is characterized in that, the described control signal exported according to described control mode controls the operating state of conducting-heat elements, carries out control comprise described battery pack temperature:
When described control mode is static, described control signal controls to perform switch and disconnects, and conducting-heat elements does not work;
When described control method is Inner eycle, described control signal controls described execution switch and closes, conducting-heat elements work;
When described control method is outer circulation, described control signal controls described execution switch and closes, conducting-heat elements work; Meanwhile, described control signal is sent to host computer by external control interface, described host computer controls external refrigeration system works according to described control signal.
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| CN106257742A (en) * | 2016-09-14 | 2016-12-28 | 安徽舟之航电池有限公司 | Vehicular dynamic battery system temperature control system |
| CN107039710A (en) * | 2015-12-30 | 2017-08-11 | 昶洧新能源汽车发展有限公司 | The battery coolant circuit pad of electric vehicle |
| CN108987854A (en) * | 2017-05-31 | 2018-12-11 | 舍弗勒技术股份两合公司 | Battery thermal management system, battery pack grade, battery module grade and battery unit grade |
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| CN202474143U (en) * | 2012-03-23 | 2012-10-03 | 上海中科深江电动车辆有限公司 | Power cell heat management device with temperature adjustment and counterbalance function |
| CN103715473A (en) * | 2012-09-29 | 2014-04-09 | 北京有色金属研究总院 | Thermal management system of power battery |
| CN204407446U (en) * | 2015-03-18 | 2015-06-17 | 广东万锦科技股份有限公司 | A kind of power battery thermal management system with heating function |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039710A (en) * | 2015-12-30 | 2017-08-11 | 昶洧新能源汽车发展有限公司 | The battery coolant circuit pad of electric vehicle |
| CN105552472A (en) * | 2016-01-26 | 2016-05-04 | 苏州安靠电源有限公司 | High-capacity battery pack temperature control apparatus and high-capacity battery pack with same |
| CN106257742A (en) * | 2016-09-14 | 2016-12-28 | 安徽舟之航电池有限公司 | Vehicular dynamic battery system temperature control system |
| CN108987854A (en) * | 2017-05-31 | 2018-12-11 | 舍弗勒技术股份两合公司 | Battery thermal management system, battery pack grade, battery module grade and battery unit grade |
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| CN104900940B (en) | 2018-05-15 |
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