CN103337675A - Power battery group of electric vehicle - Google Patents
Power battery group of electric vehicle Download PDFInfo
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- CN103337675A CN103337675A CN2013102448766A CN201310244876A CN103337675A CN 103337675 A CN103337675 A CN 103337675A CN 2013102448766 A CN2013102448766 A CN 2013102448766A CN 201310244876 A CN201310244876 A CN 201310244876A CN 103337675 A CN103337675 A CN 103337675A
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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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The invention discloses a power battery group of an electric vehicle. The power battery group comprises a battery group shell and a plurality of battery modules arranged in the power group shell, and also comprises heat management parts integrated in the power group shell, wherein the heat management parts comprise a rear evaporator, a battery heater and a battery fan; the setting positions of the rear evaporator, the battery heater and the battery fan in the battery group shell need to meet the conditions that cold air formed by the rear evaporator and hot air formed by the battery heater are accelerated to circulate under the action of the battery fan and flow through all the battery modules. The power battery group disclosed by the invention has the advantages that closed design is adopted, so that the dustproof and waterproof grade is high; the heat management parts are arranged inside, and air ducts are simple in design and high in temperature consistency; on the basis of the power battery group, a charging management system and a heat management system are small in occupied space, have no heat loss in the conveying process and are low in cost; and the control integration level is high.
Description
Technical field
The present invention relates to electric automobile heat management field, relate in particular to a kind of electric automobile power battery group and charging management system thereof, and the heat management system of electric automobile air-conditioning and power battery pack.
Background technology
Battery faces the low temperature charging and exist potential safety hazard, high temperature discharge to have shortcomings such as life-span decay, so the battery temperature control interval directly determines security performance, useful life and the continual mileage of battery as one of core component of electric automobile.The power battery pack of electric automobile is to be formed by a large amount of cell stack design, its charge-discharge performance is poor than normal temperature under low temperature environment, and when battery temperature is lower than certain value electrokinetic cell can not directly charge (being lower than 0 ℃ as LiFePO4 can not charge).There is the life-span decay in electrokinetic cell when temperature is too high, even increases the thermal runaway risk.Therefore, exploitation safety, efficient, uniform power battery pack heat management system are even more important.
The heat management of electric automobile power battery group relates generally to battery pack is heated and cooling at present, wherein:
1) heating: heating mainly contains following several: modes such as heating plate, silicone band heating, cooled plate heating, ptc heater heating.Wherein heating plate adopts the heating of contact heat exchange pattern, but because it directly acts on battery cell, One's name is legion, system complex in battery pack, also have simultaneously sheet material thin, pierce through defectives such as causing insulation fault easily.Shortcoming is not easy to thermal contact conductance because its material is soft, yielding etc. for silicone band heating.And the cooled plate heating needs cell water cooling system (as system unit supports such as water pump, water heater, heat exchangers), system complex, cost height, and the system thermal waste is big.Ptc heater is heated whole Battery pack by cross-ventilation after adding thermal recovery heating air, and its material behavior determines its tool high safety performance, influences greatly but its efficiency of heating surface is arranged by the battery pack air channel.
2) cooling: technology related to the present invention is that automobile double is steamed cooling system, and two steaming cooling systems generally are used for vehicles such as minibus and commercial vehicle, and its front evaporator device is arranged in instrument desk, so that cold wind to be provided to front-row occupant; And finisher is arranged in roof, provides fresh cold wind to arrange the occupant backward.This system applies is when electric automobile, and existing design to the battery pack transporting cold wind, realizes the battery pack cooling by airduct for battery is arranged in power battery pack outside (as being arranged in enging cabin, boot) with evaporator and fan.Its major defect has: during airduct turnover battery pack because airduct material and fit system cause water proof and dust proof grade deficiency; The in/out air tube sectional area is big, and it is big to take up room; In/out air tube is arranged in battery pack both sides or position, dead ahead, the inner air channel of battery pack difficult design; Wind steams assembly and is arranged in the battery pack outside, and the cold transport path is long, and cold consumption is big, and battery pack internal cell temperature consistency is poor; System configuration complexity, parts cause the cost height more.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, it is inner and based on heating cooling integration heat management mentality of designing that evaporator, heater and fan are arranged in battery pack, a kind of electric automobile power battery group and charging management system thereof are provided, and the heat management system of electric automobile air-conditioning and power battery pack, it has solved the unsolved following technical problem of prior art: water proof and dust proof rank difference, system complex, the temperature consistency is poor, thermal losses is big, space hold is big, cost is high.
Technical scheme of the present invention is:
A kind of electric automobile power battery group, comprise battery housing, and be arranged on a plurality of battery modules in the described battery housing, be characterized in, described power battery pack also comprises the finisher that all is integrated in the described battery housing, cell heater and battery fan, described finisher, cell heater and battery fan need satisfy at the installation position of described battery housing: the cold wind that air forms via described finisher, and the hot blast that forms via described cell heater of air, described battery fan effect under accelerate circulation and each described battery modules of flowing through.
Preferably, described a plurality of battery modules is divided into the first battery modules unit, the second battery modules unit and the 3rd battery modules unit; Wherein,
Be arranged side by side, described the 3rd battery modules unit is positioned at the right side of the first battery modules unit and the second battery modules unit the described first battery modules unit and the second battery modules unit interval certain distance;
Form centre gangway between the described first battery modules unit and the second battery modules unit, described battery fan, cell heater and finisher are laid in the described centre gangway from left to right in turn; And,
The left surface of the left surface of the left surface of the described first battery modules unit, battery fan and the second battery modules unit all with the setting that keeps at a certain distance away of the left surface of described battery housing; The setting that keeps at a certain distance away of the right flank of described the 3rd battery modules and the right flank of described battery housing.
Preferably, be provided with first seal trim strip parallel to each other, second seal trim strip, the 3rd seal trim strip and the 4th seal trim strip in described battery housing, described a plurality of battery modules are divided into the first battery modules unit, the second battery modules unit and the 3rd battery modules unit; Wherein,
Described first seal trim strip and second seal trim strip are respectively adjacent to two opposed side edges settings of described battery housing, and described the 3rd seal trim strip and the 4th seal trim strip lay respectively at the both sides of the axis of battery housing;
Between described first seal trim strip and the 3rd seal trim strip, be formed for laying first spatial accommodation of the described first battery modules unit, between described second seal trim strip and the 4th seal trim strip, be formed for laying second spatial accommodation of the described second battery modules unit, form the 3rd spatial accommodation between described the 3rd seal trim strip and the 4th seal trim strip, described battery fan, cell heater and finisher are laid in described the 3rd spatial accommodation from left to right in turn; On the right side of described the 3rd seal trim strip and the 4th seal trim strip and between described first seal trim strip and second seal trim strip, be formed for laying the 4th spatial accommodation of described the 3rd battery modules unit;
The left surface of the left surface of the left surface of the described first battery modules unit, battery fan and the second battery modules unit all with the setting that keeps at a certain distance away of the left surface of described battery housing; The setting that keeps at a certain distance away of the right flank of described the 3rd battery modules unit and the right flank of described battery housing.
A kind of charging management system of electric automobile power battery group is characterized in, described charging management system comprises,
Compressor, condenser, liquid storage drier and be used for condenser fan to the condenser air blast, described compressor is communicated with described condenser and liquid storage drier in turn by first pipeline;
Above-mentioned electric automobile power battery group, described liquid storage drier, electric automobile power battery group and compressor are connected in turn by the 3rd pipeline, constitute circulation circuit with described condenser; And,
Control module and the charging module that is electrically connected with described control module and electric automobile power battery group respectively, described compressor, condenser fan, finisher, cell heater and battery fan all are electrically connected with described control module.
A kind of charging management method for the electric automobile power battery group is characterized in, described charging management method comprises,
Obtain the temperature of electric automobile power battery group;
Judge whether charging module connects power supply, if, then:
When the temperature of electric automobile power battery group satisfies t≤first temperature, open the battery fan, and after a time-delay period, open cell heater, described electric automobile power battery group is heated;
When the temperature of electric automobile power battery group satisfies first temperature＜t≤second temperature, open battery fan and cell heater simultaneously, and a plurality of battery modules chargings in the electric automobile power battery group;
When the temperature of electric automobile power battery group satisfies second temperature＜t＜the 3rd temperature, close battery fan and cell heater; And,
When the temperature of electric automobile power battery group satisfies t 〉=the 3rd temperature, open the battery fan, and after a time-delay period, open compressor and condenser fan, so that the electric automobile power battery group cools.
Preferably, described charging management method also comprises,
Judge whether the electric automobile power battery group is in discharge condition, if, then:
When the temperature of electric automobile power battery group satisfies t≤second temperature, open the battery fan, and after a time-delay period, open cell heater, described electric automobile power battery group is heated;
When the temperature of electric automobile power battery group satisfies second temperature＜t＜the 4th temperature, close battery fan and cell heater;
When the temperature of electric automobile power battery group satisfies the 4th temperature≤t＜the 3rd temperature, open the battery fan; And,
When the temperature of electric automobile power battery group satisfies t 〉=the 3rd temperature, open the battery fan, and after a time-delay period, open compressor and condenser fan, so that described electric automobile power battery group cools.
Preferably, described first temperature is 0 ℃; Described second temperature is 10 ℃; Described the 3rd temperature is 35 ℃; Described the 4th temperature is 25 ℃.
Preferably, the described time-delay period is 30s.
The heat management system of a kind of electric automobile air-conditioning and power battery pack is characterized in, described heat management system comprises,
Compressor, condenser, liquid storage drier and be used for condenser fan to the condenser air blast, described compressor is communicated with described condenser and liquid storage drier in turn by first pipeline;
First electromagnetically operated valve, first expansion valve, front evaporator device, heater and preceding steaming fan, described liquid storage drier, first electromagnetically operated valve, first expansion valve, front evaporator device and compressor are connected by second pipeline in turn, constitute first circulation circuit with described condenser; Steam the front end that fan is laid in described heater and front evaporator device before described, be used for to heater and the air blast of front evaporator device;
Second electromagnetically operated valve, second expansion valve and above-mentioned electric automobile power battery group, described liquid storage drier, second electromagnetically operated valve, second expansion valve, described electric automobile power battery group and compressor are connected by described the 3rd pipeline in turn, constitute second circulation circuit with described condenser; And,
The control module that is electrically connected with described compressor, condenser fan, first electromagnetically operated valve, front evaporator device, heater, preceding steaming fan, second electromagnetically operated valve, finisher, cell heater and battery fan respectively.
A kind of electric automobile is characterized in, described electric automobile is provided with the heat management system of electric automobile air-conditioning as claimed in claim 8 and power battery pack.
Beneficial effect of the present invention is,
Compare with existing program, the present invention has following technology point:
1) power battery pack is the enclosed design, and dustproof and waterproof grade height: power battery pack only is connected by the 3rd pipeline with external system, and to realize input and the output of refrigerant, the long-pending airduct in no heavy in section connects, and sealing is reliable.Inner and the extraneous no air exchange of moving electric battery pack effectively stops steam and charged dust in the outside air that battery is caused corrosion simultaneously;
2) thermal management component is built-in, air channel simplicity of design, temperature consistency height: the inside that all is arranged in battery housing owing to finisher, cell heater, battery fan, pump wind by the guides wind flow direction and battery fan, make the power battery pack internal gas flow produce interior circulation, greatly improve power battery pack temperature inside consistency;
3) system occupies little space, no course of conveying thermal losses, and cost is low.Heat management system does not have outside airduct and the associated components of connecting, and is therefore few to the car load space hold.And thermal management component is built-in, and maximization has reduced the thermal losses in the gas transmission course.With respect to the water-cooling system that is all closed system, owing to reduced water circulation system, this system cost is low.
4) control integrated level height.By the integrated heat management control of car load control unit, realize car load control unit, air-conditioner control system and battery management system triplicity, realize that battery thermal management control is intelligent.
Description of drawings
Fig. 1 shows the internal structure schematic diagram of electric automobile power battery group of the present invention.
Fig. 2 shows the structural representation of the charging management system of electric automobile power battery group of the present invention.
Fig. 3 illustrates the charging management method schematic diagram of the charging management system of electric automobile power battery group shown in Figure 2.
Fig. 4 shows the structural representation of the heat management system of electric automobile air-conditioning of the present invention and power battery pack.
Fig. 5 shows the control input and output scheme of the heat management system of electric automobile air-conditioning shown in Figure 4 and power battery pack.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical or similar label is represented identical or similar elements or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
Fig. 1 shows the internal structure schematic diagram of electric automobile power battery group of the present invention, and as shown in Figure 1, described electric automobile power battery group 304 comprises battery housing 3045, and is arranged on a plurality of battery modules in the described battery housing 3045.Especially, described power battery pack 304 also comprises the finisher 3041 that all is integrated in the described battery housing 3045, cell heater 3042 and battery fan 3043, described finisher 3041, cell heater 3042 and battery fan 3043 need satisfy at the installation position of described battery housing 3045: the cold wind that air forms via described finisher 3041, and air is via the hot blast of described cell heater 3042 formation, described battery fan 3043 effect under accelerate circulation and each described battery modules of flowing through, thereby described battery housing 3045 in the interior circulation flow field of formation air.
In a preferred embodiment of the present invention, particularly: described a plurality of battery modules are divided into the first battery modules unit, the second battery modules unit and the 3rd battery modules unit, the described first battery modules unit comprises battery modules a11 to ann, the described second battery modules unit comprises battery modules b11 to bnn, and described the 3rd battery modules unit comprises battery modules c11 to cnn.
Wherein, be arranged side by side, described the 3rd battery modules unit is positioned at the right side of the first battery modules unit and the second battery modules unit the described first battery modules unit and the second battery modules unit interval certain distance;
Form centre gangway between the described first battery modules unit and the second battery modules unit, described battery fan 3043, cell heater 3042 and finisher 3041 are laid in the described centre gangway from left to right in turn; And,
The left surface of the left surface of the left surface of the described first battery modules unit, battery fan 3043 and the second battery modules unit all with the setting that keeps at a certain distance away of the left surface of described battery housing 3045; The setting that keeps at a certain distance away of the right flank of the right flank of described the 3rd battery modules and described battery housing 3045.
In another preferred embodiment of the present invention, with reference to Fig. 1, in order effectively to avoid leaking out and turbulent flow, and effectively realize hot blast or cold wind are delivered to each corner of battery modules, increased a plurality of seal trim strips on the basis of a last embodiment.Particularly, be provided with first seal trim strip 30441 parallel to each other, second seal trim strip 30442, the 3rd seal trim strip 30443 and the 4th seal trim strip 30444 in described battery housing 3045, described a plurality of battery modules are divided into the first battery modules unit, the second battery modules unit and the 3rd battery modules unit; Wherein,
Described first seal trim strip 30441 and second seal trim strip 30442 are respectively adjacent to two opposed side edges settings of described battery housing 3045, and described the 3rd seal trim strip 30443 and the 4th seal trim strip 30444 lay respectively at the both sides of the axis of battery housing 3045;
Between described first seal trim strip 30441 and the 3rd seal trim strip 30443, be formed for laying first spatial accommodation of the described first battery modules unit, between described second seal trim strip 30442 and the 4th seal trim strip 30444, be formed for laying second spatial accommodation of the described second battery modules unit, form the 3rd spatial accommodation between described the 3rd seal trim strip 30443 and the 4th seal trim strip 30444, described battery fan 3043, cell heater 3042 and finisher 3041 are laid in described the 3rd spatial accommodation from left to right in turn; On the right side of described the 3rd seal trim strip 30443 and the 4th seal trim strip 30444 and between described first seal trim strip 30441 and second seal trim strip 30442, be formed for laying the 4th spatial accommodation of described the 3rd battery modules unit;
The left surface of the left surface of the left surface of the described first battery modules unit, battery fan 3043 and the second battery modules unit all with the setting that keeps at a certain distance away of the left surface of described battery housing 3045; The setting that keeps at a certain distance away of the right flank of the right flank of described the 3rd battery modules unit and described battery housing 3045.
In this embodiment, after battery fan 3043 started, under its blasting action, air was sent to the 3rd battery modules unit mid portion, touched wall (the right side inwall of battery housing 3045) back toward the both sides shunting of this right side inwall.Under the 3043 exhausting end effects of battery fan, air runs through each electronics module of first module group unit and the second battery modules unit to the high order end of battery housing 3045 simultaneously.Touch wall (inner left wall of battery housing 3045) back again at the dirty telegram in reply of exhausting end suction function pond fan 3043, so form circulation.Because the laying of first seal trim strip 30441, second seal trim strip 30442, the 3rd seal trim strip 30443 and the 4th seal trim strip 30444, on the one hand avoided effectively leaking out and turbulent flow, realized effectively on the other hand hot blast or cold wind are delivered to each corner in the battery housing 3045.Air channel design in the above-mentioned battery housing 3045 can be looked after the surface of each battery modules, effectively solves a system temperature consistency difficult problem.
Fig. 2 shows the structural representation of the charging management system of electric automobile power battery group 304 of the present invention, as shown in Figure 2, the charging management system of described electric automobile power battery group 304 comprises, compressor 102, condenser 103, liquid storage drier 104, condenser fan 105, electric automobile power battery group 304, control module (not shown) and charging module.
Particularly, described condenser fan 105 contiguous described condensers 103 arrange, and are used for to condenser 103 air blast.Described compressor 102 is communicated with described condenser 103 and liquid storage drier 104 in turn by first pipeline 101; Described liquid storage drier 104, electric automobile power battery group 304 and compressor 102 are connected in turn by the 3rd pipeline 301; Described charging module is electrically connected with described control module and electric automobile power battery group 304 respectively, and described compressor 102, condenser fan 105, described finisher 3041, cell heater 3042 and battery fan 3043 all are electrically connected with described control module.
Fig. 3 illustrates the charging management method schematic diagram of the charging management system of electric automobile power battery group 304 shown in Figure 2, and as shown in Figure 3, the charging management method of the charging management system of described electric automobile power battery group 304 comprises:
Obtain the temperature of described electric automobile power battery group 304;
Judge whether described charging module connects power supply, if, then:
When the temperature of described electric automobile power battery group 304 satisfied t≤0 ° C, described control module was opened described battery fan 3043, and opens described cell heater 3042 after a time-delay period;
When the temperature of described electric automobile power battery group 304 satisfies 0 ° of C＜t≤10 ° C, described control module is opened described battery fan 3043 and cell heater 3042 simultaneously, and controls described charging module and charge to a plurality of battery modules in the electric automobile power battery group 304;
When the temperature of described electric automobile power battery group 304 satisfied 10 ° of C＜t＜35 ° C, described control module was closed described battery fan 3043 and cell heater 3042; And,
When the temperature of described electric automobile power battery group 304 satisfies t 〉=35 ° C, described control module is opened described battery fan 3043, and after a time-delay period, open described compressor 102 and condenser fan 105, so that described electric automobile power battery group 304 cools.
And still with reference to Fig. 3, described charging management method also comprises,
Judge whether described electric automobile power battery group 304 is in discharge condition (judging namely whether current electric automobile is in transport condition), if, then:
When the temperature of described electric automobile power battery group 304 satisfied t≤10 ° C, described control module was opened described battery fan 3043, and opens described cell heater 3042 after a time-delay period;
When the temperature of described electric automobile power battery group 304 satisfied 10 ° of C＜t＜25 ° C, described control module was closed described battery fan 3043 and cell heater 3042;
When the temperature of described electric automobile power battery group 304 satisfied 25 ° of C≤t＜35 ° C, described control module was opened described battery fan 3043; And,
When the temperature of described electric automobile power battery group 304 satisfies t 〉=35 ° C, described control module is opened described battery fan 3043, and after a time-delay period, open described compressor 102 and condenser fan 105, so that described electric automobile power battery group 304 cools.
In a preferred embodiment of the present invention, the above-mentioned time-delay period is preferably 30s.
Fig. 4 shows the structural representation of the heat management system of electric automobile air-conditioning of the present invention and power battery pack 304, as shown in Figure 4, the heat management system of described electric automobile air-conditioning and power battery pack 304 comprises, compressor 102, condenser 103, liquid storage drier 104, condenser fan 105, first electromagnetically operated valve 202, first expansion valve 203, front evaporator device 204, heater 205, preceding steaming fan 206, second electromagnetically operated valve 302, second expansion valve 303, electric automobile power battery group 304 and control module.
Particularly, described condenser fan 105 contiguous described condensers 103 are laid, and are used for to described condenser 103 air blast, and described compressor 102 is communicated with described condenser 103 and liquid storage drier 104 in turn by first pipeline 101.Described liquid storage drier 104, first electromagnetically operated valve 202, first expansion valve 203, front evaporator device 204 and compressor 102 are connected by second pipeline 201 in turn, constitute first circulation circuit with described condenser 103; Steam the front end that fan 206 is laid in described heater 205 and front evaporator device 204 before described, be used for to heater 205 and 204 air blast of front evaporator device.Described liquid storage drier 104, second electromagnetically operated valve 302, expansion valve, described electric automobile power battery group 304 and compressor 102 are connected by described the 3rd pipeline 301 in turn, constitute second circulation circuit with described condenser 103.Described control module is electrically connected with described compressor 102, condenser fan 105, first electromagnetically operated valve 202, front evaporator device 204, heater 205, preceding steaming fan 206, second electromagnetically operated valve 302, finisher 3041, cell heater 3042 and battery fan 3043 respectively.
Electric automobile of the present invention is provided with the heat management system of above-mentioned electric automobile air-conditioning and power battery pack 304.
Describe the operation principle of the heat management system of described electric automobile air-conditioning and power battery pack 304 in detail below with reference to Fig. 4:
When only power battery of electric vehicle group 304 needs refrigeration, control module is controlled first electromagnetically operated valve 202 and is closed, second electromagnetically operated valve 302 is opened, power battery pack 304 cooling refrigerant loops are formed, control module control this moment compressor 102 is opened, and the gas (direction of arrow shown in Fig. 4 is the flow direction of air) of HTHP is provided to condenser 103; Condenser fan 105 is opened to condenser 103 air blast, thereby makes condenser 103 to the heat of outside air release refrigerant, and the refrigerant that condenser 103 is sent is transferred to the liquid state of HTHP by gaseous state; Liquid refrigerants flow through liquid storage drier 104 dry and filter after flow to second electromagnetically operated valve 302 and second expansion valve 303; This moment, second electromagnetically operated valve 302 was opening, and the gas-liquid mixture of low-temp low-pressure is provided to finisher 3041 behind second expansion valve, 303 reduction refrigerant pressure, the adjustment cold medium flux; Refrigerant enters finisher 3041 backs because the blasting action of battery fan 3043, make the cold of the absorption of air refrigerant of battery housing 3045 inside reduce battery housing 3045 Inside Air Temperatures and then reduce the temperature of power battery pack 304, also make finisher 3041 interior liquid refrigerants change the gaseous state of low-temp low-pressure into simultaneously; The gaseous coolant of low-temp low-pressure is at dirty time compressor 102 of the dynamic action of compressor 102, and under compressor 102 power consumptions acting, makes the low-temp low-pressure cold media gas become high temperature and high pressure gas again to condenser 103 outputs, thereby form circulation.
When having only crew module passenger to freeze, first electromagnetically operated valve 202 is opened, and second electromagnetically operated valve 302 cuts out, and makes the passenger cool off the refrigerant loop and is formed, and compressor 102 is opened at this moment, and the gas of HTHP is provided to condenser 103; Condenser fan 105 is opened to condenser 103 air blast, thereby makes condenser 103 to the heat of outside air release refrigerant, and the refrigerant that condenser 103 is sent is transferred to the liquid state of HTHP by gaseous state; Liquid refrigerants flow through liquid storage drier 104 dry and filter after flow to first electromagnetically operated valve 202 and first expansion valve 203; This moment, first electromagnetically operated valve 202 be opening, and first expansion valve 203 reduces behind refrigerant pressure, the adjustment cold medium flux gas-liquid mixture that evaporator 204 forward provides low-temp low-pressure; Refrigerant enters front evaporator device 204 backs because the blasting action of preceding steaming fan 206, the cold that makes crew module's inner air absorb refrigerant reduces crew module's air themperature and then improves occupant's comfortableness, also makes front evaporator device 204 inner refrigerants change the gaseous state of low-temp low-pressure into simultaneously; The gaseous coolant of low-temp low-pressure is at dirty time compressor 102 of the dynamic action of compressor 102, and under compressor 102 power consumptions acting, makes the low-temp low-pressure cold media gas become high temperature and high pressure gas again to condenser 103 outputs, thereby form circulation.
When crew module passenger and power battery pack 304 all needed to freeze, opened first electromagnetically operated valve 202 and second electromagnetically operated valve 302 this moment simultaneously, and two-way refrigerant loop is all formed, and compressor 102 is opened, and the gas of HTHP is provided to condenser 103; Condenser fan 105 is opened the refrigerant that condenser 103 is sent to condenser 103 air blast and is transferred liquid state to by gaseous state; Liquid refrigerants is flowed through and is flowed to first electromagnetically operated valve 202 and second electromagnetically operated valve 302 behind the liquid storage drier 104; First expansion valve 203 and second expansion valve 303 evaporator 204 and finisher 3041 forward provide refrigerant respectively, provide the cooling air for the crew module under the effect of preceding steaming fan 206; Under the effect of battery fan 3043, finisher 3041 provides the cooling air to battery housing 3045 inside.Refrigerant is at dirty time compressor 102 of the dynamic action of compressor 102 and under its power consumption acting, and refrigerant changes the gas of HTHP into again to condenser 103 outputs and formation circulation.
When power battery pack 304 need heat, opened battery fan 3043, cell heater 3042 this moment, utilizes the battery housing 3045 interior air channels of above-mentioned enclosed to realize circulation in power battery pack 304 inner airs.Battery fan 3043 is delivered to each battery modules with cell heater 3042 heats by inner air channel and heats to cell heater 3042 air blast, and is back to the negative pressuren zone that battery fan 3043 front ends form.Thereby complete interior circulation heating circuit, and heating power battery pack 304.
When the crew module need heat, steaming fan 206 and heater 205 were blown to the crew module before control module was opened simultaneously.
Fig. 5 shows the control input and output scheme of the heat management system of electric automobile air-conditioning shown in Figure 4 and power battery pack 304, as shown in Figure 5, described heat management system comprises battery management system and air-conditioner control system, wherein, battery management system reports the temperature of electric automobile power battery group 304 to the car load control unit, the surface temperature of finisher 3041, the temperature of cell heater 3042, the state of battery fan 3043, the information such as state of cell heater 3042, the car load control unit requires battery management system to carry out the relay control of the relay control box battery fan 3043 of cell heater 3042 according to institute's feedack and overall thermal management policy requirement.Air-conditioner control system reports the state of first electromagnetically operated valve 202, the state of second electromagnetically operated valve 302, the operating state of compressor 102, state and the air-conditioner controller state of condenser fan 105 to the car load control unit.The car load control unit reports temperature regime according to institute's feedback information, car load thermal management policy demand and battery management system, requires air-conditioner controller to carry out the control of the control of first electromagnetically operated valve 202, second electromagnetically operated valve 302 and the control of air-conditioner controller.
For example: when battery management system monitors the temperature t 〉=35 ° C of electric automobile power battery group 304, temperature data is reported to the car load control unit, the car load control unit determines to carry out cooling down operation this moment according to the battery thermal management strategy, then the car load control unit requires battery management system to carry out the relay adhesive of battery fan 3043, requires second electromagnetically operated valve 302 to open, and requires air-conditioner controller to start that control condenser fan 105 starts and compressor 102 startups provide refrigeration for power battery pack 304 simultaneously.This moment air-conditioner control system with the feedback information such as state of the state of the state of second electromagnetically operated valve 302, compressor 102, condenser fan 105 to the car load control unit; Battery management system then in real time with the state feedback of the temperature of the temperature of electric automobile power battery group 304, finisher 3041, battery fan 3043 to the car load control unit, the car load control unit judges according to feedback information whether system works normal.
It should be noted that the present invention can be applied to the other technologies field, as the caravan built-in refrigerator, then can provide refrigeration by finisher 3041; The present invention also can be in air conditioning for automobiles, domestic air conditioning, communication electronics cooling sector application.
Embodiment shown in above foundation is graphic describes structure of the present invention, feature and action effect in detail; the above only is preferred embodiment of the present invention; but the present invention does not limit practical range with shown in the drawing; every change of doing according to conception of the present invention; or be revised as the equivalent embodiment of equivalent variations; when not exceeding specification yet and illustrating contain spiritual, all should be in protection scope of the present invention.
Claims (10)
1. electric automobile power battery group, comprise battery housing, and be arranged on a plurality of battery modules in the described battery housing, it is characterized in that: described power battery pack also comprises the finisher that all is integrated in the described battery housing, cell heater and battery fan, described finisher, cell heater and battery fan need satisfy at the installation position of described battery housing: the cold wind that air forms via described finisher, and air accelerates circulation and each described battery modules of flowing through via the hot blast of described cell heater formation under the effect of described battery fan.
2. electric automobile power battery group according to claim 1, it is characterized in that: described a plurality of battery modules are divided into the first battery modules unit, the second battery modules unit and the 3rd battery modules unit; Wherein,
Be arranged side by side, described the 3rd battery modules unit is positioned at the right side of the first battery modules unit and the second battery modules unit the described first battery modules unit and the second battery modules unit interval certain distance;
Form centre gangway between the described first battery modules unit and the second battery modules unit, described battery fan, cell heater and finisher are laid in the described centre gangway from left to right in turn; And,
The left surface of the left surface of the left surface of the described first battery modules unit, battery fan and the second battery modules unit all with the setting that keeps at a certain distance away of the left surface of described battery housing; The setting that keeps at a certain distance away of the right flank of described the 3rd battery modules and the right flank of described battery housing.
3. electric automobile power battery group according to claim 1, it is characterized in that: be provided with first seal trim strip parallel to each other, second seal trim strip, the 3rd seal trim strip and the 4th seal trim strip in described battery housing, described a plurality of battery modules are divided into the first battery modules unit, the second battery modules unit and the 3rd battery modules unit; Wherein,
Described first seal trim strip and second seal trim strip are respectively adjacent to two opposed side edges settings of described battery housing, and described the 3rd seal trim strip and the 4th seal trim strip lay respectively at the both sides of the axis of battery housing;
Between described first seal trim strip and the 3rd seal trim strip, be formed for laying first spatial accommodation of the described first battery modules unit, between described second seal trim strip and the 4th seal trim strip, be formed for laying second spatial accommodation of the described second battery modules unit, form the 3rd spatial accommodation between described the 3rd seal trim strip and the 4th seal trim strip, described battery fan, cell heater and finisher are laid in described the 3rd spatial accommodation from left to right in turn; On the right side of described the 3rd seal trim strip and the 4th seal trim strip and between described first seal trim strip and second seal trim strip, be formed for laying the 4th spatial accommodation of described the 3rd battery modules unit;
The left surface of the left surface of the left surface of the described first battery modules unit, battery fan and the second battery modules unit all with the setting that keeps at a certain distance away of the left surface of described battery housing; The setting that keeps at a certain distance away of the right flank of described the 3rd battery modules unit and the right flank of described battery housing.
4. the charging management system of an electric automobile power battery group is characterized in that: described charging management system comprises,
Compressor, condenser, liquid storage drier and be used for condenser fan to the condenser air blast, described compressor is communicated with described condenser and liquid storage drier in turn by first pipeline;
As any described electric automobile power battery group in the claim 1 to 3, described liquid storage drier, electric automobile power battery group and compressor are connected in turn by the 3rd pipeline, constitute circulation circuit with described condenser; And,
Control module and the charging module that is electrically connected with described control module and electric automobile power battery group respectively, described compressor, condenser fan, finisher, cell heater and battery fan all are electrically connected with described control module.
5. charging management method that is used for the electric automobile power battery group is characterized in that: described charging management method comprises,
Obtain the temperature of electric automobile power battery group;
Judge whether charging module connects power supply, if, then:
When the temperature of electric automobile power battery group satisfies t≤first temperature, open the battery fan, and after a time-delay period, open cell heater, described electric automobile power battery group is heated;
When the temperature of electric automobile power battery group satisfies first temperature＜t≤second temperature, open battery fan and cell heater simultaneously, and a plurality of battery modules chargings in the electric automobile power battery group;
When the temperature of electric automobile power battery group satisfies second temperature＜t＜the 3rd temperature, close battery fan and cell heater; And,
When the temperature of electric automobile power battery group satisfies t 〉=the 3rd temperature, open the battery fan, and after a time-delay period, open compressor and condenser fan, so that the electric automobile power battery group cools.
6. charging management method according to claim 5 is characterized in that: described charging management method also comprises,
Judge whether the electric automobile power battery group is in discharge condition, if, then:
When the temperature of electric automobile power battery group satisfies t≤second temperature, open the battery fan, and after a time-delay period, open cell heater, described electric automobile power battery group is heated;
When the temperature of electric automobile power battery group satisfies second temperature＜t＜the 4th temperature, close battery fan and cell heater;
When the temperature of electric automobile power battery group satisfies the 4th temperature≤t＜the 3rd temperature, open the battery fan; And,
When the temperature of electric automobile power battery group satisfies t 〉=the 3rd temperature, open the battery fan, and after a time-delay period, open compressor and condenser fan, so that described electric automobile power battery group cools.
7. according to claim 5 or 6 described charging management methods, it is characterized in that: described first temperature is 0 ℃; Described second temperature is 10 ℃; Described the 3rd temperature is 35 ℃; Described the 4th temperature is 25 ℃.
8. according to claim 5 or 6 described charging management methods, it is characterized in that: the described time-delay period is 30s.
9. the heat management system of an electric automobile air-conditioning and power battery pack is characterized in that: described heat management system comprises,
Compressor, condenser, liquid storage drier and be used for condenser fan to the condenser air blast, described compressor is communicated with described condenser and liquid storage drier in turn by first pipeline;
First electromagnetically operated valve, first expansion valve, front evaporator device, heater and preceding steaming fan, described liquid storage drier, first electromagnetically operated valve, first expansion valve, front evaporator device and compressor are connected by second pipeline in turn, constitute first circulation circuit with described condenser; Steam the front end that fan is laid in described heater and front evaporator device before described, be used for to heater and the air blast of front evaporator device;
Second electromagnetically operated valve, second expansion valve and as any described electric automobile power battery group in the claim 1 to 3, described liquid storage drier, second electromagnetically operated valve, second expansion valve, described electric automobile power battery group and compressor are connected by described the 3rd pipeline in turn, constitute second circulation circuit with described condenser; And,
The control module that is electrically connected with described compressor, condenser fan, first electromagnetically operated valve, front evaporator device, heater, preceding steaming fan, second electromagnetically operated valve, finisher, cell heater and battery fan respectively.
10. electric automobile, it is characterized in that: described electric automobile is provided with the heat management system of electric automobile air-conditioning as claimed in claim 9 and power battery pack.
Priority Applications (2)
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| CN201310244876.6A CN103337675B (en) | 2013-06-19 | 2013-06-19 | Electric automobile power battery group |
| CN2013203530602U CN203326062U (en) | 2013-06-19 | 2013-06-19 | Power battery pack of electric vehicle, management system of power battery pack and electric vehicle |
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| CN201310244876.6A CN103337675B (en) | 2013-06-19 | 2013-06-19 | Electric automobile power battery group |
| CN2013203530602U CN203326062U (en) | 2013-06-19 | 2013-06-19 | Power battery pack of electric vehicle, management system of power battery pack and electric vehicle |
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| CN103337675B (en) | 2015-12-09 |
| CN203326062U (en) | 2013-12-04 |
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