CN103337675B - Electric automobile power battery group - Google Patents

Electric automobile power battery group Download PDF

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Publication number
CN103337675B
CN103337675B CN201310244876.6A CN201310244876A CN103337675B CN 103337675 B CN103337675 B CN 103337675B CN 201310244876 A CN201310244876 A CN 201310244876A CN 103337675 B CN103337675 B CN 103337675B
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Prior art keywords
battery
electric automobile
temperature
fan
power battery
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CN103337675A (en
Inventor
阳斌
夏顺礼
赵久志
张宝鑫
宋军
刘轶鑫
韩金池
程剑峰
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Anhui Jianghuai Automobile Group Corp
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Anhui Jianghuai Automobile Group Corp
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Priority to CN201310244876.6A priority Critical patent/CN103337675B/en
Priority to CN2013203530602U priority patent/CN203326062U/en
Publication of CN103337675A publication Critical patent/CN103337675A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles

Abstract

The invention discloses a kind of electric automobile power battery group, it comprises battery housing and establishes multiple battery modules in the inner, also comprise the thermal management component be integrated in battery housing, thermal management component comprises finisher, cell heater and battery fan, finisher, cell heater and battery fan need meet at the installation position of battery housing: the cold wind that air is formed via finisher and the hot blast that air is formed via cell heater, accelerate circulation and flow through each battery modules under the effect of battery fan.Described electric automobile power battery group is enclosed design, and dustproof and waterproof grade is high: thermal management component is built-in, and Duct design is simple, temperature consistency is high; Occupy little space based on the charging management system of this power battery pack and heat management system, without course of conveying thermal losses, cost is low; Control integration degree is high.

Description

Electric automobile power battery group
Technical field
The present invention relates to electric automobile field of heat management, particularly relate to a kind of electric automobile power battery group and charging management system thereof, and the heat management system of electric automobile air conditioner and power battery pack.
Background technology
Battery, as one of the core component of electric automobile, faces that low temperature charging exists potential safety hazard, high temperature discharge exists the shortcomings such as life time decay, and therefore battery temperature control interval directly determines the security performance of battery, useful life and continual mileage.The power battery pack of electric automobile is formed by a large amount of cell stack design, its charge-discharge performance compared with normal temperature difference at low ambient temperatures, and when battery temperature can not directly charge (as LiFePO4 can not charge lower than 0 DEG C) lower than electrokinetic cell during certain value.There is life time decay when temperature is too high in electrokinetic cell, even increases thermal runaway risk.Therefore, exploitation safety, efficient, uniform power battery pack heat management system are even more important.
The heat management of current electric automobile power battery group relates generally to and carries out heating to battery pack and cool, wherein:
1) heat: heating mainly contains following several: the modes such as the heating of heating plate, silicone band, cooled plate heating, ptc heater heating.Wherein heating plate adopts contact heat conductien mode to heat, but directly acts on battery cell due to it, One's name is legion, system complex in battery pack, also have simultaneously sheet material thin, easily pierce through defects such as causing insulation fault.Silicone band heating is not easy to thermal contact conductance due to shortcomings such as its material are soft, yielding.And cooled plate heating needs cell water cooling system (as system unit supports such as water pump, water heater, heat exchangers), system complex, cost are high, and system thermal waste is large.Heated whole Battery pack by cross-ventilation after ptc heater heating employing adds hot-air, its material behavior determines its tool high safety performance, but its efficiency of heating surface affects large by battery pack air channel layout.
2) cool: technology related to the present invention is that automobile double steams cooling system, and two steaming cooling system is generally used for the vehicle such as minibus and commercial vehicle, and its front evaporator is arranged in instrument desk, to provide cold wind to front-row occupant; And finisher is arranged in roof, provide fresh cold wind to arrange occupant backward.When this system is applied to electric automobile, existing design, for battery evaporator and fan are arranged in power battery pack outside (as being arranged in enging cabin, boot), by airduct to battery pack transporting cold wind, realizes battery pack cooling.Its major defect has: because airduct material and fit system cause water proof and dust proof grade not enough during airduct turnover battery pack; In/out air tube sectional area is large, takes up room large; In/out air tube is arranged in battery pack both sides or position, dead ahead, internal battery pack Duct design difficulty; Wind steams assembly and is arranged in battery pack outside, cold transport road path length, and cold consumption is large, and internal battery pack battery temperature consistency is poor; System configuration is complicated, parts cause cost high more.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, evaporator, heater and fan are arranged in internal battery pack and based on heating cooling integration heat management mentality of designing, provide a kind of electric automobile power battery group and charging management system thereof, and the heat management system of electric automobile air conditioner and power battery pack, which solve the unsolved following technical problem of prior art: water proof and dust proof rank difference, system complex, temperature consistency are poor, thermal losses is large, space hold is large, cost is high.
Technical scheme of the present invention is:
A kind of electric automobile power battery group, comprise battery housing, and the multiple battery modules be arranged in described battery housing, be characterized in, described power battery pack also comprises the finisher be all integrated in described battery housing, cell heater and battery fan, described finisher, cell heater and battery fan need meet at the installation position of described battery housing: the cold wind that air is formed via described finisher, and the hot blast that air is formed via described cell heater, described battery fan effect under accelerate circulation and flow through battery modules described in each.
Preferably, described multiple 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 3rd battery modules unit is positioned at the right side of the first battery modules unit and the second battery modules unit described first battery modules unit and the second battery modules unit interval certain distance;
Between described first battery modules unit and the second battery modules unit, form centre gangway, described battery fan, cell heater and finisher are laid in described centre gangway from left to right in turn; Further,
The left surface of the described left surface of the first battery modules unit, the left surface of battery fan and the second battery modules unit all keeps at a certain distance away with the left surface of described battery housing and arranges; The described right flank of the 3rd battery modules and the right flank of described battery housing keep at a certain distance away and arrange.
Preferably, in described battery housing, be provided with the first seal trim strip parallel to each other, the second seal trim strip, the 3rd seal trim strip and the 4th seal trim strip, described multiple battery modules is divided into the first battery modules unit, the second battery modules unit and the 3rd battery modules unit; Wherein,
The two relative sides that described first seal trim strip and the second seal trim strip are respectively adjacent to described battery housing are arranged, and described 3rd seal trim strip and the 4th seal trim strip lay respectively at the both sides of the axis of battery housing;
The first spatial accommodation for laying described first battery modules unit is formed between described first seal trim strip and the 3rd seal trim strip, the second spatial accommodation for laying described second battery modules unit is formed between described second seal trim strip and the 4th seal trim strip, between described 3rd seal trim strip and the 4th seal trim strip, form the 3rd spatial accommodation, described battery fan, cell heater and finisher are laid in described 3rd spatial accommodation from left to right in turn; On the right side of described 3rd seal trim strip and the 4th seal trim strip and the 4th spatial accommodation formed between described first seal trim strip and the second seal trim strip for laying described 3rd battery modules unit;
The left surface of the described left surface of the first battery modules unit, the left surface of battery fan and the second battery modules unit all keeps at a certain distance away with the left surface of described battery housing and arranges; The described right flank of the 3rd battery modules unit and the right flank of described battery housing keep at a certain distance away and arrange.
A charging management system for electric automobile power battery group, is characterized in, described charging management system comprises,
Compressor, condenser, liquid storage dryer and for the condenser fan to condenser air blast, described compressor is sequentially communicated with liquid storage dryer with described condenser by the first pipeline;
Above-mentioned electric automobile power battery group, described liquid storage dryer, electric automobile power battery group are connected by the 3rd pipeline in turn with compressor, form circulation circuit together with described condenser; And,
Control module and the charging module be electrically connected with described control module and electric automobile power battery group respectively, described compressor, condenser fan, finisher, cell heater and battery fan are all electrically connected with described control module.
For a charging management method for electric automobile power battery group, be characterized in, described charging management method comprises,
Obtain the temperature of electric automobile power battery group;
Judge whether charging module switches on power, if so, then:
When the temperature of electric automobile power battery group meets t≤the first temperature, open battery fan, and open cell heater after a latency period, described electric automobile power battery group is heated;
When the temperature of electric automobile power battery group meets the first temperature <t≤the second temperature, open battery fan and cell heater simultaneously, and to the multiple battery modules chargings in electric automobile power battery group;
When the temperature of electric automobile power battery group meets the second temperature <t < the 3rd temperature, close battery fan and cell heater; Further,
When the temperature of electric automobile power battery group meets t >=the 3rd temperature, open battery fan, and open compressor and condenser fan after a latency period, cool to make electric automobile power battery group.
Preferably, described charging management method also comprises,
Judge whether electric automobile power battery group is in discharge condition, if so, then:
When the temperature of electric automobile power battery group meets t≤the second temperature, open battery fan, and open cell heater after a latency period, described electric automobile power battery group is heated;
When the temperature of electric automobile power battery group meets the second temperature <t< the 4th temperature, close battery fan and cell heater;
When the temperature of electric automobile power battery group meets four temperature≤t < the 3rd temperature, open battery fan; Further,
When the temperature of electric automobile power battery group meets t >=the 3rd temperature, open battery fan, and open compressor and condenser fan after a latency period, cool to make described electric automobile power battery group.
Preferably, described first temperature is 0 DEG C; Described second temperature is 10 DEG C; Described 3rd temperature is 35 DEG C; Described 4th temperature is 25 DEG C.
Preferably, described latency period is 30s.
A heat management system for electric automobile air conditioner and power battery pack, is characterized in, described heat management system comprises,
Compressor, condenser, liquid storage dryer and for the condenser fan to condenser air blast, described compressor is sequentially communicated with liquid storage dryer with described condenser by the first pipeline;
First electromagnetically operated valve, the first expansion valve, front evaporator, heater and front steaming fan, described liquid storage dryer, the first electromagnetically operated valve, the first expansion valve, front evaporator are sequentially connected by second pipe with compressor, form the first circulation circuit together with described condenser; Steam fan before described and be laid in the front end of described heater and front evaporator, for heater and front evaporator air blast;
Second electromagnetically operated valve, the second expansion valve and above-mentioned electric automobile power battery group, described liquid storage dryer, the second electromagnetically operated valve, the second expansion valve, described electric automobile power battery group and compressor are sequentially connected by described 3rd pipeline, form the second circulation circuit together with described condenser; And,
The control module be electrically connected with described compressor, condenser fan, the first electromagnetically operated valve, front evaporator, heater, front steaming fan, the 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 conditioner as claimed in claim 8 and power battery pack.
Beneficial effect of the present invention is,
Compared with existing program, the present invention has following technology point:
1) power battery pack is enclosed design, and dustproof and waterproof grade is high: power battery pack is connected by means of only the 3rd pipeline with external system, and to realize the constrained input of refrigerant, amass airduct without heavy in section and connect, sealing is reliable.Dynamic electric internal battery pack is with extraneous without air exchange simultaneously, effectively stops the steam in outside air and charged dust to cause corrosion to battery;
2) thermal management component is built-in, Duct design is simple, temperature consistency is high: because finisher, cell heater, battery fan are all arranged in the inside of battery housing, distinguished and admirablely wind is pumped to battery fan by guiding, make power battery pack internal gas flow produce Inner eycle, greatly improve the temperature consistency of power battery pack inside;
3) system occupies little space, and without course of conveying thermal losses, cost is low.Heat management system connects airduct and associated components without outside, therefore few to car load space hold.Further, thermal management component is built-in, maximizes the thermal losses decreased in gas transport process.Relative to the water-cooling system being all closed system, owing to decreasing water circulation system, this system cost is low.
4) control integration degree is high.Controlled by full-vehicle control unit integral heat management, realize full-vehicle control unit, air-conditioner control system and battery management system triplicity, realize battery thermal management intelligent control.
Accompanying drawing explanation
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 the electric automobile power battery group shown in Fig. 2.
Fig. 4 shows the structural representation of the heat management system of electric automobile air conditioner of the present invention and power battery pack.
Fig. 5 shows control inputs and the output scheme of the heat management system of the electric automobile air conditioner shown in Fig. 4 and power battery pack.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
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 the multiple battery modules in described battery housing 3045.Especially, described power battery pack 304 also comprises the finisher 3041 be all integrated in described battery housing 3045, cell heater 3042 and battery fan 3043, described finisher 3041, cell heater 3042 and battery fan 3043 need meet at the installation position of described battery housing 3045: the cold wind that air is formed via described finisher 3041, and the hot blast that air is formed via described cell heater 3042, described battery fan 3043 effect under accelerate circulation and flow through battery modules described in each, thus in described battery housing 3045, form the Inner eycle flow field of air.
In a preferred embodiment of the invention, particularly: described multiple battery modules is divided into the first battery modules unit, the second battery modules unit and the 3rd battery modules unit, described first battery modules unit comprises battery modules a11 to ann, described second battery modules unit comprises battery modules b11 to bnn, and described 3rd battery modules unit comprises battery modules c11 to cnn.
Wherein, be arranged side by side, described 3rd battery modules unit is positioned at the right side of the first battery modules unit and the second battery modules unit described first battery modules unit and the second battery modules unit interval certain distance;
Between described first battery modules unit and the second battery modules unit, form centre gangway, described battery fan 3043, cell heater 3042 and finisher 3041 are laid in described centre gangway from left to right in turn; Further,
The left surface of the described left surface of the first battery modules unit, the left surface of battery fan 3043 and the second battery modules unit all keeps at a certain distance away with the left surface of described battery housing 3045 and arranges; The described right flank of the 3rd battery modules and the right flank of described battery housing 3045 keep at a certain distance away and arrange.
In another preferred embodiment of the present invention, with reference to Fig. 1, in order to effectively avoid leaking out and turbulent flow, and effectively realize hot blast or cold wind to be delivered to each corner of battery modules, the basis of a upper embodiment adds multiple seal trim strip.Particularly, in described battery housing 3045, be provided with the first seal trim strip 30441, second seal trim strip 30442, the 3rd seal trim strip 30443 and the 4th seal trim strip 30444 parallel to each other, described multiple battery modules is divided into the first battery modules unit, the second battery modules unit and the 3rd battery modules unit; Wherein,
The two relative sides that described first seal trim strip 30441 and the second seal trim strip 30442 are respectively adjacent to described battery housing 3045 are arranged, and described 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;
The first spatial accommodation for laying described first battery modules unit is formed between described first seal trim strip 30441 and the 3rd seal trim strip 30443, the second spatial accommodation for laying described second battery modules unit is formed between described second seal trim strip 30442 and the 4th seal trim strip 30444, between described 3rd seal trim strip 30443 and the 4th seal trim strip 30444, form the 3rd spatial accommodation, described battery fan 3043, cell heater 3042 and finisher 3041 are laid in described 3rd spatial accommodation from left to right in turn; On the right side of described 3rd seal trim strip 30443 and the 4th seal trim strip 30444 and the 4th spatial accommodation formed between described first seal trim strip 30441 and the second seal trim strip 30442 for laying described 3rd battery modules unit;
The left surface of the described left surface of the first battery modules unit, the left surface of battery fan 3043 and the second battery modules unit all keeps at a certain distance away with the left surface of described battery housing 3045 and arranges; The described right flank of the 3rd battery modules unit and the right flank of described battery housing 3045 keep at a certain distance away and arrange.
In this embodiment, after battery fan 3043 starts, under its blasting action, air is sent to the 3rd battery modules unit mid portion, touches wall (the right side inwall of battery housing 3045) afterwards toward the both sides shunting of inwall on the right side of this.Simultaneously under the effect of battery fan 3043 exhausting end, air runs through the high order end of each electronics module to battery housing 3045 of the first module group unit and the second battery modules unit.Again to touch after wall (inner left wall of battery housing 3045) at exhausting end suction function dirty telegram in reply pond fan 3043, so form circulation.Due to the laying of the first seal trim strip 30441, second seal trim strip 30442, the 3rd seal trim strip 30443 and the 4th seal trim strip 30444, efficiently avoid on the one hand and leaks out and turbulent flow, have effectively achieved each corner hot blast or cold wind are delivered in battery housing 3045 on the other hand.Duct design in above-mentioned battery housing 3045 can look 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 dryer 104, condenser fan 105, electric automobile power battery group 304, control module (not shown) and charging module.
Particularly, the contiguous described condenser 103 of described condenser fan 105 is arranged, for condenser 103 air blast.Described compressor 102 is sequentially communicated with liquid storage dryer 104 with described condenser 103 by the first pipeline 101; Described liquid storage dryer 104, electric automobile power battery group 304 are connected by the 3rd pipeline 301 in turn with compressor 102; Described charging module is electrically connected with described control module and electric automobile power battery group 304 respectively, further, described compressor 102, condenser fan 105, described finisher 3041, cell heater 3042 and battery fan 3043 are all electrically connected with described control module.
Fig. 3 illustrates the charging management method schematic diagram of the charging management system of the electric automobile power battery group 304 shown in Fig. 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 switches on power, if so, then:
When the temperature of described electric automobile power battery group 304 meets t≤0 ° C, described control module opens described battery fan 3043, and after a latency period, open described cell heater 3042;
When the temperature of described electric automobile power battery group 304 meets 0 ° of C<t≤10 ° C, described control module opens described battery fan 3043 and cell heater 3042 simultaneously, and controls described charging module to the multiple battery modules chargings in electric automobile power battery group 304;
When the temperature of described electric automobile power battery group 304 meets 10 ° of C<t <, 35 ° of C, described control module closes described battery fan 3043 and cell heater 3042; Further,
When the temperature of described electric automobile power battery group 304 meets t >=35 ° C, described control module opens described battery fan 3043, and after a latency period, open described compressor 102 and condenser fan 105, cool to make described electric automobile power battery group 304.
Further, 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 (namely judging whether current power automobile is in transport condition), if so, then:
When the temperature of described electric automobile power battery group 304 meets t≤10 ° C, described control module opens described battery fan 3043, and after a latency period, open described cell heater 3042;
When the temperature of described electric automobile power battery group 304 meets 10 ° of C<t<25 ° of C, described control module closes described battery fan 3043 and cell heater 3042;
When the temperature of described electric automobile power battery group 304 meets 25 ° of C≤t <, 35 ° of C, described control module opens described battery fan 3043; Further,
When the temperature of described electric automobile power battery group 304 meets t >=35 ° C, described control module opens described battery fan 3043, and after a latency period, open described compressor 102 and condenser fan 105, cool to make described electric automobile power battery group 304.
In a preferred embodiment of the invention, above-mentioned latency period is preferably 30s.
Fig. 4 shows the structural representation of the heat management system of electric automobile air conditioner of the present invention and power battery pack 304, as shown in Figure 4, the heat management system of described electric automobile air conditioner and power battery pack 304 comprises, compressor 102, condenser 103, liquid storage dryer 104, condenser fan 105, first electromagnetically operated valve 202, first expansion valve 203, front evaporator 204, heater 205, front steaming fan 206, second electromagnetically operated valve 302, second expansion valve 303, electric automobile power battery group 304 and control module.
Particularly, the contiguous described condenser 103 of described condenser fan 105 is laid, and for the air blast of described condenser 103, described compressor 102 is sequentially communicated with liquid storage dryer 104 with described condenser 103 by the first pipeline 101.Described liquid storage dryer 104, first electromagnetically operated valve 202, first expansion valve 203, front evaporator 204 are sequentially connected by second pipe 201 with compressor 102, form the first circulation circuit together with described condenser 103; Steam fan 206 before described and be laid in the front end of described heater 205 and front evaporator 204, for heater 205 and front evaporator 204 air blast.Described liquid storage dryer 104, second electromagnetically operated valve 302, expansion valve, described electric automobile power battery group 304 are sequentially connected by described 3rd pipeline 301 with compressor 102, form the second circulation circuit together with described condenser 103.Described control module is electrically connected with described compressor 102, condenser fan 105, first electromagnetically operated valve 202, front evaporator 204, heater 205, front 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 conditioner and power battery pack 304.
The operation principle of the heat management system of described electric automobile air conditioner and power battery pack 304 is described in detail referring to Fig. 4:
When only power battery of electric vehicle group 304 needs refrigeration, control module controls the first electromagnetically operated valve 202 and closes, second electromagnetically operated valve 302 is opened, make power battery pack 304 cool refrigerant loop to be formed, now control module control compressor 102 is opened, and provides the gas of HTHP (direction of arrow shown in Fig. 4 is the flow direction of air) to condenser 103; Condenser fan 105 is opened to condenser 103 air blast, thus make condenser 103 outwardly air release refrigerant heat, the refrigerant simultaneously making condenser 103 send is transferred to the liquid state of HTHP by gaseous state; Liquid refrigerants flows through liquid storage dryer 104 drying and flows to the second electromagnetically operated valve 302 and the second expansion valve 303 after filtering; Now the second electromagnetically operated valve 302 is opening, provides the gas-liquid mixture of low-temp low-pressure after the second expansion valve 303 reduces refrigerant pressure, adjustment cold medium flux to finisher 3041; Refrigerant enters the blasting action due to battery fan 3043 after finisher 3041, make the cold of the absorption of air refrigerant of battery housing 3045 inside reduce battery housing 3045 Inside Air Temperature and then reduce the temperature of power battery pack 304, also making finisher 3041 interior liquid refrigerant change the gaseous state of low-temp low-pressure into simultaneously; The gaseous coolant of low-temp low-pressure at the dynamic action of compressor 102 dirty time compressor 102, and under compressor 102 power consumption acting, makes low-temp low-pressure cold media gas again become high temperature and high pressure gas and exports to condenser 103, thus forms circulation.
When only having crew module passenger to need refrigeration, the first electromagnetically operated valve 202 is opened, and the second electromagnetically operated valve 302 cuts out, and make passenger cool refrigerant loop and formed, now compressor 102 is opened, and provides the gas of HTHP to condenser 103; Condenser fan 105 is opened to condenser 103 air blast, thus make condenser 103 outwardly air release refrigerant heat, the refrigerant simultaneously making condenser 103 send is transferred to the liquid state of HTHP by gaseous state; Liquid refrigerants flows through liquid storage dryer 104 drying and flows to the first electromagnetically operated valve 202 and the first expansion valve 203 after filtering; Now the first electromagnetically operated valve 202 is opening, provides the gas-liquid mixture of low-temp low-pressure after the first expansion valve 203 reduces refrigerant pressure, adjustment cold medium flux to front evaporator 204; Refrigerant enters the blasting action due to front steaming fan 206 after front evaporator 204, the cold making crew module's inner air absorb refrigerant reduces crew module's air themperature and then improves occupant's comfortableness, also makes the inner refrigerant of front evaporator 204 change the gaseous state of low-temp low-pressure into simultaneously; The gaseous coolant of low-temp low-pressure at the dynamic action of compressor 102 dirty time compressor 102, and under compressor 102 power consumption acting, makes low-temp low-pressure cold media gas again become high temperature and high pressure gas and exports to condenser 103, thus forms circulation.
When crew module passenger and power battery pack 304 all need refrigeration, now open the first electromagnetically operated valve 202 and the second electromagnetically operated valve 302, two-way refrigerant loop is all formed, and compressor 102 is opened, and provides the gas of HTHP to condenser 103 simultaneously; Condenser fan 105 is opened refrigerant condenser 103 being sent to condenser 103 air blast and is transferred liquid state to by gaseous state; Liquid refrigerants flows to the first electromagnetically operated valve 202 and the second electromagnetically operated valve 302 after flowing through liquid storage dryer 104; First expansion valve 203 and the second expansion valve 303 provide refrigerant respectively to front evaporator 204 and finisher 3041, for crew module provides cooling-air under the effect of front steaming fan 206; Under the effect of battery fan 3043, finisher 3041 provides cooling-air to battery housing 3045 inside.Refrigerant is at the dynamic action of compressor 102 dirty time compressor 102 and under its power consumption acting, the gas that refrigerant changes HTHP again into exports to condenser 103 and forms circulation.
When power battery pack 304 needs to heat, now open battery fan 3043, cell heater 3042, utilize the air channel in the battery housing 3045 of above-mentioned enclosed to realize power battery pack 304 inner air Inner eycle.Cell heater 3042 heat, to cell heater 3042 air blast, is delivered to each battery modules by inner air channel and heats by battery fan 3043, and is back to the negative pressuren zone of battery fan 3043 front end formation.Thus complete Inner eycle heating circuit, and heated power battery pack 304.
When crew module needs to heat, control module steams fan 206 before opening simultaneously and heater 205 is blown to crew module.
Fig. 5 shows control inputs and the output scheme of the heat management system of the electric automobile air conditioner shown in Fig. 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 full-vehicle control unit, the surface temperature of finisher 3041, the temperature of cell heater 3042, the state of battery fan 3043, the information such as the state of cell heater 3042, according to institute's feedack and overall thermal management policy requirement, full-vehicle control unit requires that battery management system performs the Control of the Control box battery fan 3043 of cell heater 3042.Air-conditioner control system reports the state of the state of the first electromagnetically operated valve 202, the second electromagnetically operated valve 302, the operating state of compressor 102, the state of condenser fan 105 and air-conditioner controller state to full-vehicle control unit.Full-vehicle control unit reports temperature regime according to institute feedback information, car load thermal management policy demand and battery management system, requires that air-conditioner controller performs the control of the first electromagnetically operated valve 202, the control of the second electromagnetically operated valve 302 and the control of air-conditioner controller.
Such as: when battery management system monitors the temperature t >=35 ° C of electric automobile power battery group 304, temperature data is reported to full-vehicle control unit, full-vehicle control unit is according to battery thermal management strategy decision now this execution cooling down operation, then full-vehicle control unit requires the relay adhesive of battery management system execution battery fan 3043, requires that the second electromagnetically operated valve 302 is opened, and requires that air-conditioner controller startup control condenser fan 105 starts and compressor 102 starts as power battery pack 304 provides refrigeration simultaneously.Now air-conditioner control system by information feed back such as the state of the state of the second electromagnetically operated valve 302, compressor 102, the states of condenser fan 105 to full-vehicle control unit; Battery management system then real-time by the state feedback of the temperature of the temperature of electric automobile power battery group 304, finisher 3041, battery fan 3043 to full-vehicle control unit, full-vehicle control unit judges that whether system works normal according to feedback information.
It should be noted that the present invention can be applied to other technologies field, as caravan built-in refrigerator, then can provide refrigeration by finisher 3041; The present invention also can in air conditioning for automobiles, domestic air conditioning, the sector application of communication electrical cooling.
Structure of the present invention, feature and action effect is described in detail above according to graphic shown embodiment; the foregoing is only preferred embodiment of the present invention; but the present invention does not limit practical range with shown in drawing; every change done according to conception of the present invention; or be revised as the Equivalent embodiments of equivalent variations; do not exceed yet specification with diagram contain spiritual time, all should in protection scope of the present invention.

Claims (4)

1. for a charging management method for electric automobile power battery group, it is characterized in that: described charging management method comprises,
Obtain the temperature of electric automobile power battery group;
Judge whether charging module switches on power, if so, then:
When the temperature of electric automobile power battery group meets t≤the first temperature, open battery fan, and open cell heater after a latency period, described electric automobile power battery group is heated;
When the temperature of electric automobile power battery group meets the first temperature <t≤the second temperature, open battery fan and cell heater simultaneously, and to the multiple battery modules chargings in electric automobile power battery group;
When the temperature of electric automobile power battery group meets the second temperature <t< the 3rd temperature, close battery fan and cell heater; Further,
When the temperature of electric automobile power battery group meets t >=the 3rd temperature, open battery fan, and open compressor and condenser fan after a latency period, cool to make electric automobile power battery group.
2. charging management method according to claim 1, is characterized in that: described charging management method also comprises,
Judge whether electric automobile power battery group is in discharge condition, if so, then:
When the temperature of electric automobile power battery group meets t≤the second temperature, open battery fan, and open cell heater after a latency period, described electric automobile power battery group is heated;
When the temperature of electric automobile power battery group meets the second temperature <t< the 4th temperature, close battery fan and cell heater;
When the temperature of electric automobile power battery group meets four temperature≤t< the 3rd temperature, open battery fan; Further,
When the temperature of electric automobile power battery group meets t >=the 3rd temperature, open battery fan, and open compressor and condenser fan after a latency period, cool to make described electric automobile power battery group.
3. charging management method according to claim 1 and 2, is characterized in that: described first temperature is 0 DEG C; Described second temperature is 10 DEG C; Described 3rd temperature is 35 DEG C; Described 4th temperature is 25 DEG C.
4. charging management method according to claim 1 and 2, is characterized in that: described latency period is 30s.
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