CN209381734U - A kind of heat management system for electric car - Google Patents
A kind of heat management system for electric car Download PDFInfo
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- CN209381734U CN209381734U CN201821865570.7U CN201821865570U CN209381734U CN 209381734 U CN209381734 U CN 209381734U CN 201821865570 U CN201821865570 U CN 201821865570U CN 209381734 U CN209381734 U CN 209381734U
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Abstract
The utility model provides a kind of heat management system for electric car, the heat management system include battery thermal management circuit, refrigerant circuit and be serially connected with simultaneously it is described include battery thermal management circuit and refrigerant circuit battery cooler；The battery cooler for realizing in the battery thermal management circuit the first working medium and the refrigerant circuit in the second working medium heat exchange；The heat management system is adjusted for realizing the temperature of battery pack and/or crew module to electric car.After adopting the above technical scheme, can satisfy round-the-clock battery thermal management and crew module's comfort conditioning demand, it is energy-efficient.
Description
Technical field
The utility model relates to electric car thermal management technology field more particularly to a kind of heat managements for electric car
System.
Background technique
With the development of automotive engineering, the occupation rate of electric car in the car is higher and higher, and electric car is with battery
It for power, needs to cool down battery and heat the safe and highly efficient operation for guaranteeing battery, and needs to meet relaxing for crew module
Adaptive and drive safety.In electric car actual motion, annual operating condition has notable difference, and thermal management system of electric automobile needs
It to be adjusted according to different operating conditions and realize efficient heat management function.
The heat management system that most of electric cars use at present is mutually to be tied using electric automobile air conditioner with PTC electric heater
The system of conjunction, when winter operating condition, are heated by PTC electric heater, this by the mileage travelled of significant attenuation electric car, and
And lack the mechanism that different operational modes is adjusted according to environmental working condition.Also there is the reality for the efficiency that heating is improved using heat pump system
Case is applied, vehicle external heat exchanger should be used as again evaporator as condenser at this time, and existing vehicle external heat exchanger design is in conduct
Super cooled sect flat heat exchange pipe is bypassed when evaporator reduces the service efficiency of heat exchanger area.
Therefore it needs to design a set of energy-efficient heat management system for electric car, meets round-the-clock battery heat
Management and crew module's comfort conditioning demand, and make full use of the heat exchange area of vehicle external heat exchanger.
Utility model content
In order to overcome the above technical defects, the purpose of this utility model is to provide it is a kind of it is energy-efficient, can sufficiently expire
The heat management system for electric car of sufficient battery thermal management and crew module's comfort conditioning demand.
The utility model discloses a kind of heat management system for electric car, the heat management system includes battery heat
Management loop, refrigerant circuit and be serially connected with simultaneously it is described include battery thermal management circuit and refrigerant circuit battery cooler
(4)；The battery cooler (4) is for realizing in the first working medium and the refrigerant circuit in the battery thermal management circuit
The second working medium heat exchange；The heat management system for realizing battery pack (7) and/or crew module to electric car temperature
Degree is adjusted.
Preferably, the battery thermal management circuit includes the electronic water pump (10) that circuit is in turn connected by pipeline, electricity
Chi Bao (7), battery cooler (4), the first expansion tank (15)；Refrigerant circuit includes being in turn connected into circuit by pipeline
Motor compressor (1), vehicle external heat exchanger (3), the first electric expansion valve (21), fluid reservoir (27), battery cooler (4), gas-liquid
Separator (13).
Preferably, the battery thermal management circuit further includes radiator (6)；The battery pack (7) and the battery are cooling
Pipeline between device (4) is equipped with the first three-way control valve (25), and first three-way control valve (25) is for changing in pipeline
The flow direction of first working medium；The first end of the radiator (6) by piping connection to first three-way control valve (25),
The second end of the radiator (6) is connected to the pipeline between the electronic water pump (10) and first expansion tank (15)
On, the pipeline between the radiator (6) and the first three-way control valve (25) is equipped with the second expansion tank (14).
Preferably, the battery thermal management circuit further includes the first electric heater (9)；The battery pack (7) and described the
The second three-way control valve (26) are equipped between one three-way control valve (25), second three-way control valve (26) is for changing pipeline
The flow direction of interior first working medium；The first end of first electric heater (9) passes through piping connection to the second threeway tune
Save valve (26), the second end of the radiator (6) be connected to the electronic water pump (10) and first expansion tank (15) it
Between pipeline on.
Preferably, the refrigerant circuit further includes the interior evaporator (5) being arranged in the air-conditioning box (29)；It is described
Pipeline between fluid reservoir (27) and first electric expansion valve (21) is equipped with the first three-way interface (30), and the battery is cold
But the pipeline between device (4) and the gas-liquid separator (13) is equipped with the second three-way interface (31)；The car evaporator (5)
First end first three-way interface (30) is arrived by piping connection, the second end of the interior evaporator (5) passes through pipeline
It is connected to second three-way interface (31)；Pipeline between the car evaporator (5) and second three-way interface (31)
It is equipped with the second electric expansion valve (22).
Preferably, the refrigerant circuit further includes the interior condenser (2) being arranged in the air-conditioning box (29)；It is described
Pipeline between motor compressor (1) and the vehicle external heat exchanger (3) is equipped with third three-way interface (32)；First threeway
Pipeline between interface (30) and second electric expansion valve (22) is equipped with the 4th three-way interface (33)；The interior condensation
The first end of device (2) is passed through by piping connection to the third three-way interface (32), the second end of the car condenser (2)
Piping connection is to the 4th three-way interface (33)；Between the third three-way interface (32) and the interior condenser (2)
Pipeline is equipped with the first solenoid valve (16)；On pipeline between the third three-way interface (32) and the vehicle external heat exchanger (3)
Equipped with second solenoid valve (17).
Preferably, the pipeline between the vehicle external heat exchanger (3) and the fluid reservoir (27) is equipped with the 5th three-way interface
(34)；Pipeline between the car condenser (2) and the 4th three-way interface (33) is equipped with the 6th three-way interface
(35)；Pass through piping connection between 6th three-way interface (35) and the 5th three-way interface (34), is successively set on pipeline
There are third electric expansion valve (20), check-valves (23)；Pipe between the second solenoid valve (17) and the vehicle external heat exchanger (3)
Road is equipped with the 7th three-way interface (36)；On pipeline between second three-way interface (31) and the gas-liquid separator (13)
Equipped with the 8th three-way interface (37)；Connected between 7th three-way interface (36) and the 8th three-way interface (37) by pipeline
It connects；Pipeline between 4th three-way interface (33) and the 6th three-way interface (35) is equipped with third solenoid valve (19)；
Pipeline between 5th three-way interface (34) and the fluid reservoir (27) is equipped with the 4th solenoid valve (24)；Described 7th 3
The pipeline connected between mouth (36) and the 8th three-way interface (37) is equipped with the 5th solenoid valve (18).
Preferably, air blower (12), air door (28) and the second electric heater (8) are additionally provided in the air-conditioning box (29).
Preferably, cooling fan (11) are equipped at the vehicle external heat exchanger (3), the cooling fan (11) is for being described
Vehicle external heat exchanger (3) provides air-flow.
After above-mentioned technical proposal, compared with prior art, have the advantages that
1. heat management system is vdiverse in function, it can sufficiently meet battery thermal management and crew module's comfort conditioning demand.
2. heat management system can by most efficiently it is energy-efficient in a manner of battery pack temperature and crew module's temperature are adjusted.
3. making full use of the heat exchange area of vehicle external heat exchanger.
4. greatly extending the mileage travelled of electric car.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model heat management system；
Fig. 2 is the schematic diagram of heat management system working condition in an embodiment of the present invention；
Fig. 3 is the schematic diagram of heat management system working condition in an embodiment of the present invention；
Fig. 4 is the schematic diagram of heat management system working condition in an embodiment of the present invention；
Fig. 5 is the schematic diagram of heat management system working condition in an embodiment of the present invention；
Fig. 6 is the schematic diagram of heat management system working condition in an embodiment of the present invention；
Fig. 7 is the schematic diagram of heat management system working condition in an embodiment of the present invention；
Fig. 8 is the schematic diagram of heat management system working condition in an embodiment of the present invention；
Fig. 9 is the schematic diagram of heat management system working condition in an embodiment of the present invention；
Figure 10 is the schematic diagram of heat management system working condition in an embodiment of the present invention；
Figure 11 is the logic relation picture of heat management system heat exchange pattern switching；
Figure 12 is the logic relation picture that air-conditioning box leaving air temp variation tendency is adjusted with electronic expansion valve opening.
Appended drawing reference:
1- motor compressor, 2- car condenser, 3- vehicle external heat exchanger, 4- battery cooler, 5- car evaporator, 6- dissipate
Hot device, 7- battery pack, the second electric heater of 8-, the first electric heater of 9-, 10- electronic water pump, 11- cooling fan, 12- air blast
Machine, 13- gas-liquid separator, the second expansion tank of 14-, the first expansion tank of 15-, the first solenoid valve of 16-, 17- second solenoid valve,
The 5th solenoid valve of 18-, 19- third solenoid valve, 20- third electric expansion valve, the first electric expansion valve of 21-, the second electronics of 22-
Expansion valve, 23- check-valves, the 4th solenoid valve of 24-, the first three-way control valve of 25-, the second three-way control valve of 26-, 27- liquid storage
Tank, 28- air door, 29- air-conditioning box, the first three-way interface of 30-, the second three-way interface of 31-, 32- third three-way interface, 33- the 4th
Three-way interface, the 5th three-way interface of 34-, the 6th three-way interface of 35-, the 7th three-way interface of 36-, the 8th three-way interface of 37-.
Specific embodiment
The advantages of the utility model is further described below in conjunction with attached drawing and specific embodiment.
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
It is only to be not intended to be limiting the disclosure merely for for the purpose of describing particular embodiments in the term that the disclosure uses.
The "an" of the singular used in disclosure and the accompanying claims book, " described " and "the" are also intended to including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the disclosure
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where disclosure range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the company being also possible to inside two elements
It is logical, it can be directly connected, can also indirectly connected through an intermediary, for the ordinary skill in the art, it can
To understand the concrete meaning of above-mentioned term as the case may be.
Embodiment one:
The utility model discloses the heat management system for electric car, the heat management system includes battery thermal management
Circuit, refrigerant circuit and be serially connected with simultaneously it is described include battery thermal management circuit and refrigerant circuit battery cooler 4；Institute
Battery cooler 4 is stated for realizing the first working medium in the battery thermal management circuit and the second work in the refrigerant circuit
The heat exchange of matter；The heat management system is adjusted for realizing the temperature of battery pack 7 and/or crew module to electric car.Institute
Stating the first working medium can be coolant liquid, and second working medium can be refrigerant.
Referring to attached drawing 1, in example 1, the battery thermal management circuit includes being in turn connected into circuit by pipeline
Electronic water pump 10, battery pack 7, battery cooler 4, the first expansion tank 15.
For the electronic water pump 10 for flowing first working medium circulation, the electronic water pump 10 can be PMW control.
The battery pack 7 is taken away or is brought heat by the first working medium, to realize the cooling or heating of battery pack 7.
The battery cooler 4 is used to make the in the first working medium in battery thermal management circuit and the refrigerant circuit
Two working medium carry out heat exchange wherein.The battery cooler 4 is preferably plate heat exchanger.
First expansion tank 15 is for storing the first working medium of supplement.
The refrigerant circuit includes the motor compressor 1 that circuit is in turn connected by pipeline, vehicle external heat exchanger 3,
One electric expansion valve 21, fluid reservoir 27, battery cooler 4, gas-liquid separator 13.
The motor compressor 1 is for compressing and conveying second working medium.
The vehicle external heat exchanger 3 be used for external environment heat exchange, can both make condenser or make evaporator, outside the vehicle
Heat exchanger 3 is usually provided in automotive front end to make full use of the temperature of external environment.The vehicle external heat exchanger 3 can be parallel for microchannel
Stream heat exchanger, flat tube can be vertical arrangement, and interface can above go out to be enterprising, and process is distributed as even number, can be 2 processes, 4
Process, 6 processes.
Device of first electric expansion valve 21 as throttle mechanism and adjusting flow.
The fluid reservoir 27 is for storing refrigerant liquid.
The gas-liquid separator 13 is used to separate the gas-liquid of the second working medium, guarantees that entering 1 entrance of motor compressor is
Gaseous second working medium.
The heat management system of the present embodiment can be used for realizing that the first heat exchange mode, working condition are as shown in Figure 2.Described
One heat exchange mode is preferably T in environment temperature1Shi Yunhang, T1Preferably larger or equal than 45 DEG C.Under this environment temperature,
7 temperature of battery pack is excessively high, and there are security risks, and the preferential battery pack 7 of heat management system is cooling, does not carry out cooling capacity supply to crew module.
In refrigerant circuit, the high-temperature high-pressure refrigerant gas that motor compressor 1 is discharged enters vehicle external heat exchanger 3, changes outside vehicle at this time
Hot device 3 is used as condenser, and the refrigerant that condenser comes out enters fluid reservoir 27, and the refrigerant liquid that fluid reservoir 27 comes out is through first
The throttling of electric expansion valve 21 enters the cooling battery pack 7 of heat for the first working medium that battery cooler 4 absorbs battery thermal management circuit,
The refrigerant come out to battery cooler 4 returns to motor compressor 1 after entering gas-liquid separator 13.In battery thermal management circuit
In, the first working medium takes away the heat of battery pack 7 under the action of electronic water pump 10, enters back into battery cooler 4 and changes with refrigerant
Heat returns battery pack 7 later.Under the first heat exchange mode, the heat management system is preferentially cooling to battery, cuts off crew module
Cooling capacity supply, guarantee the security reliability of battery.
In example 1, referring to attached drawing 1, the battery thermal management circuit further includes radiator 6.The radiator 6 is used
In the heat for taking away the first working medium by air heat exchange.It is set on pipeline between the battery pack 7 and the battery cooler 4
There is the first three-way control valve 25, first three-way control valve 25 makes for changing the flow direction of the first working medium described in pipeline
One working medium is exchanged heat by battery cooler 4 and the second working medium, or passes through radiator 6 and air heat-exchange.
The first end of the radiator 6 by piping connection to first three-way control valve 25, the of the radiator 6
Two ends are connected on the pipeline between the electronic water pump 10 and first expansion tank 15, the radiator 6 and the one or three
Pipeline between logical regulating valve 25 is equipped with the second expansion tank 14, and second expansion tank 14 is for storing the first work of supplement
Matter.
The radiator 6 is flowed to rather than the battery cooler 4 when first three-way control valve 25 controls the first working medium
When, the battery pack 7 is only cooled down by radiator 6.
Further, referring to attached drawing 1, the battery thermal management circuit further includes the first electric heater 9, and first electricity adds
Hot device 9 is preferably low pressure PTC electric heater, and first electric heater 9 passes through the first working medium of heating.
Between the battery pack 7 and first three-way control valve 25 be equipped with the second three-way control valve 26, the described 2nd 3
Lead to regulating valve 26 for changing the flow direction of the first working medium described in pipeline.The first end of first electric heater 9 passes through pipeline
It is connected to second three-way control valve 26, the second end of the radiator 6 is connected to the electronic water pump 10 and described first
On pipeline between expansion tank 15.Second three-way control valve 26 for control the first working medium by battery cooler 4 or
Radiator 6 to carry out battery pack 7 cooling down, or is added by first electric heater 9 to carry out heating to battery pack 7
Heat.
When second three-way control valve 26 control the first working medium flow to first electric heater 9 rather than the described 1st
When logical regulating valve 25, the battery pack 7 only carries out heating heating by first electric heater 9.
Embodiment two:
Referring to attached drawing 1, on the basis of example 1, refrigerant circuit further comprises the heat management system of the present embodiment
Interior evaporator 5 in the electric automobile air conditioner case 29 is set, and the car evaporator 5 is standing in automobile, with occupant
Cabin internal environment carries out heat exchange to reduce crew module's temperature.The car evaporator 5 can be micro-channel parallel flow formula, can also
To be stacked.
Pipeline between the fluid reservoir 27 and first electric expansion valve 21 is equipped with the first three-way interface 30, described
Pipeline between battery cooler 4 and the gas-liquid separator 13 is equipped with the second three-way interface 31；The car evaporator 5
First end first three-way interface 30 is arrived by piping connection, the second end of the interior evaporator 5 passes through piping connection
To second three-way interface 31；Pipeline between the car evaporator 5 and second three-way interface 31 is equipped with second
Electric expansion valve 22.First three-way interface 30, the second three-way interface 31 are only that connector circulates for refrigerant, cannot be independent
Change the circulating direction of refrigerant.Device of second electric expansion valve 22 as throttle mechanism and adjusting flow.
The heat management system of the present embodiment can be used for realizing that the second heat exchange mode, working condition are as shown in Figure 3.Described
Two heat exchange modes are preferably T in environment temperature2Shi Yunhang, T2Preferably larger or equal than 30 DEG C but less than 45 DEG C.Battery at this time
It is higher to wrap 7 temperature, the preferential battery pack 7 of heat management system is cooling, but can supply appropriate cooling capacity to crew module simultaneously.In the second heat exchange
Under mode, the first electric expansion valve 21, the second electric expansion valve 22 are opened, the first three-way control valve 25, the second three-way control valve
26 control first mediums only cool down to battery pack 7 by battery cooler 4.In refrigerant circuit, motor compressor 1
The high-temperature high-pressure refrigerant gas vehicle external heat exchanger 3 of discharge, vehicle external heat exchanger 3 is used as condenser, the system that condenser comes out at this time
Cryogen enters fluid reservoir 27, and it is cold that the refrigerant liquid that fluid reservoir 27 comes out enters battery through the throttling of the first electric expansion valve 21 all the way
But device 4 absorbs the cooling battery pack 7 of heat of first working medium in battery thermal management circuit, and the refrigerating capacity of battery cooler 4 passes through tune
The aperture for saving the first electric expansion valve 21 is adjusted；The refrigerant liquid another way that fluid reservoir 27 comes out is through the second electronic expansion
Evaporator 5 absorbs in-vehicle air heat reduction crew module's temperature to valve 22 into the car, and battery cooler 4 goes out with interior evaporator 5
The refrigerant come returns to motor compressor 1 after entering gas-liquid separator 13.In battery thermal management circuit, the first threeway is adjusted
Valve 25, the second three-way control valve 26 control the first working medium by battery cooler 4, electronic water pump 10 and battery pack 7.It is changed second
Under heat pattern, the preferential battery of heat management system is cooling, but supplies the appropriate cooling capacity of crew module simultaneously, while guaranteeing the peace of battery
Quan Xingyu passenger comfort.
The heat management system of the present embodiment can also be used to realize that third heat exchange mode, working condition are as shown in Figure 4.It is described
Third heat exchange mode is preferably T in environment temperature3Shi Yunhang, T3Preferably larger or equal than 25 DEG C but less than 30 DEG C.It is electric at this time
Pond 7 temperature calorific values of packet are general, and heat management system is only supplied the appropriate cooling capacity of crew module by the cooling battery of the natural type of cooling.
Natural cooling mentioned here refers to that battery pack 7 is only cooled down by radiator 6.Under third heat exchange mode, the first electronics
Expansion valve 21 is closed, and the second electric expansion valve 22 is opened, and the first three-way control valve 25, the second three-way control valve 26 control first are situated between
Matter only cools down to battery pack 7 by radiator 6.In refrigerant circuit, the high temperature and pressure system of the discharge of motor compressor 1
Refrigerant gas enters vehicle external heat exchanger 3, and vehicle external heat exchanger 3 is used as condenser at this time, and the refrigerant that condenser comes out enters liquid storage
Tank 27, through the second electric expansion valve 22, evaporator 5 absorbs in-vehicle air heat to the refrigerant liquid that fluid reservoir 27 comes out into the car
Amount reduces crew module's temperature, and the refrigerant that interior evaporator 5 comes out returns to motor compressor 1 after entering gas-liquid separator 13.?
In battery thermal management circuit, the first three-way control valve 25, the second three-way control valve 26 control the first working medium by radiator 6, electricity
Sub- water pump 10 and battery pack 7.Under third heat exchange mode, the heat management system is by the cooling battery of the natural type of cooling, only
Supply the appropriate cooling capacity of crew module.
The heat management system of the present embodiment can also be used to realize that the 4th heat exchange mode, working condition are as shown in Figure 5.It is described
4th heat exchange mode is preferably T in environment temperature4Shi Yunhang, T4Preferably larger or equal than 18 DEG C but less than 25 DEG C.It is electric at this time
Pond 7 temperature calorific values of packet are general, and it is cold not need supply crew module yet by the cooling battery of the natural type of cooling for heat management system
Amount.The refrigerant circuit does not work；First three-way control valve 25, second three-way control valve 26 in the battery thermal management circuit
The first working medium is controlled by radiator 6, electronic water pump 10 and battery pack 7.Under the 4th heat exchange mode, the heat management system is logical
The cooling battery of the natural type of cooling is crossed, does not supply crew module's cooling capacity.
Embodiment three:
Referring to attached drawing 1, on the basis of example 2, the refrigerant circuit further includes the heat management system of the present embodiment
Interior condenser 2 in the electric automobile air conditioner case 29 is set.The car condenser 2 is standing in automobile, with occupant
Cabin internal environment carries out heat exchange to increase crew module's temperature.The car condenser 2 can be micro-channel parallel flow formula.
Pipeline between the motor compressor 1 and the vehicle external heat exchanger 3 is equipped with third three-way interface 32；Described
Pipeline between one three-way interface 30 and second electric expansion valve 22 is equipped with the 4th three-way interface 33；The interior condensation
The first end of device 2 is connected by piping connection to the third three-way interface 32, the second end of the car condenser 2 by pipeline
It is connected to the 4th three-way interface 33；Pipeline between the third three-way interface 32 and the interior condenser 2 is equipped with the
One solenoid valve 16；Pipeline between the third three-way interface 32 and the vehicle external heat exchanger 3 is equipped with second solenoid valve 17.Institute
It states third three-way interface 32, the 4th three-way interface 33 only connector to circulate for refrigerant, cannot independently change the stream of refrigerant
Logical direction.First solenoid valve 16, second solenoid valve 17 for changing refrigerant flow direction.
The heat management system of the present embodiment can be used for realizing that the 5th heat exchange mode, working condition are as shown in Figure 6.Described
Five heat exchange modes are preferably T in environment temperature5Shi Yunhang, T5Preferably larger or equal than 10 DEG C but less than 18 DEG C.Battery at this time
Packet 7 can normally start work, by the cooling battery of the natural type of cooling, the supply appropriate heat of crew module simultaneously to in-vehicle air into
The powerful dehumidification treatments of row prevent windshield fogging.Under the 5th heat exchange mode, the first solenoid valve 16 opening, second solenoid valve 17
It closes, the second electric expansion valve 22 is opened, and the first three-way control valve 25, the second three-way control valve 26 control first medium only lead to
Radiator 6 is crossed to cool down to battery pack 7.In refrigerant circuit, the high-temperature high-pressure refrigerant of the discharge of motor compressor 1
Gas is through condenser 2 and the in-vehicle air heat exchange into the car of the first solenoid valve 16 to increase crew module's temperature, car condensation
Through the second electric expansion valve 22, evaporator 5, interior evaporator 5 keep incoming air moisture cold to the refrigerant that device 2 comes out into the car
Solidifying cooling achievees the purpose that return to motor compressor after dehumidifying, the refrigerant that interior evaporator 5 comes out enter gas-liquid separator 13
1.In battery thermal management circuit, the first three-way control valve 25, the second three-way control valve 26 control the first working medium and pass through radiator
6, electronic water pump 10 and battery pack 7.5th heat exchange mode can improve the refrigerating capacity of interior evaporator 5 to realize more powerful sky
Gas dehumidification function, and recycle the waste heat of dehumidifying.
In the heat management system of the present embodiment, in the case where the first solenoid valve 16 closes the opening of second solenoid valve 17, also
It can be used to implement the first to the 4th above-mentioned heat exchange mode, do not repeating here.
Example IV:
Referring to attached drawing 1, the heat management system of the present embodiment is on the basis of embodiment three, in the refrigerant circuit,
Pipeline between the vehicle external heat exchanger 3 and the fluid reservoir 27 is equipped with the 5th three-way interface 34；The car condenser 2
Pipeline between the 4th three-way interface 33 is equipped with the 6th three-way interface 35；6th three-way interface 35 and described the
Pass through piping connection between five three-way interfaces 34, is successively arranged third electric expansion valve 20, check-valves 23 on pipeline；Described second
Pipeline between solenoid valve 17 and the vehicle external heat exchanger 3 is equipped with the 7th three-way interface 36；Second three-way interface 31 with
Pipeline between the gas-liquid separator 13 is equipped with the 8th three-way interface 37；7th three-way interface 36 and the described 8th
Pass through piping connection between three-way interface 37；On pipeline between 4th three-way interface 33 and the 6th three-way interface 35
Equipped with third solenoid valve 19；Pipeline between 5th three-way interface 34 and the fluid reservoir 27 is equipped with the 4th solenoid valve
24；Pipeline between 7th three-way interface 36 and the 8th three-way interface 37 is equipped with the 5th solenoid valve 18.Described
Five three-way interfaces 34, the 6th three-way interface 35, the 7th three-way interface 36, the 8th three-way interface 37 are only connector for refrigerant stream
It is logical, it cannot independently change the circulating direction of refrigerant.The third electric expansion valve 20 is as throttle mechanism and adjusts flow
Device.The check-valves 23 is for preventing refrigerant adverse current.The third solenoid valve 19, the 4th solenoid valve 24, the 5th solenoid valve
18 for changing refrigerant flow direction.
The heat management system of the present embodiment can be used for realizing that the 6th heat exchange mode, working condition are as shown in Figure 7.Described
Six heat exchange modes are preferably T in environment temperature6Shi Yunhang, T6Preferably larger or equal than 5 DEG C but less than 10 DEG C.Battery at this time
Packet 7 can normally start work, and by the cooling battery of the natural type of cooling, the supply enough heats of crew module are simultaneously to in-vehicle air
Carrying out appropriate dehumidification treatments prevents windshield fogging.In refrigerant circuit, second solenoid valve 17, the 4th solenoid valve 24 are closed
It closes, the first solenoid valve 16, third solenoid valve 19, the 5th solenoid valve 18 are opened, the high-temperature high-pressure refrigerant that motor compressor 1 is discharged
Gas is through condenser 2 and the in-vehicle air heat exchange into the car of the first solenoid valve 16 to increase crew module's temperature, car condensation
The refrigerant that device 2 comes out enters vehicle external heat exchanger 3 after the throttling of third electric expansion valve 20 all the way, and vehicle external heat exchanger 3 is made at this time
Atmospheric heat outside vehicle is absorbed for evaporator；Another way refrigerant enters vehicle through third solenoid valve 19 and the second electric expansion valve 22
Interior evaporator 5, interior evaporator 5 make the cooling of incoming air condensate moisture achieve the purpose that dehumidifying, vehicle external heat exchanger 3 and interior steaming
The refrigerant that hair device 5 comes out returns to motor compressor 11 after entering gas-liquid separator 13.In battery thermal management circuit, the one or three
Logical regulating valve 25, the second three-way control valve 26 control the first working medium by radiator 6, electronic water pump 10 and battery pack 7.6th changes
Heat pattern is used for while absorbing the outer atmospheric heat of vehicle and in-vehicle air heat, and can recycle the waste heat of dehumidification process, is greatly improved
The heating capacity of system.
The heat management system of the present embodiment can also be used to realize that the 7th heat exchange mode, working condition are as shown in Figure 8.It is described
7th heat exchange mode is preferably T in environment temperature7Shi Yunhang, T7Preferably larger or equal than 0 DEG C but less than 5 DEG C.Battery at this time
Packet 7 can normally start work, by the cooling battery of the natural type of cooling, supply the appropriate heat of crew module.In refrigerant circuit,
Second solenoid valve 17, third solenoid valve 19, the 4th solenoid valve 24 are closed, and the first solenoid valve 16, the 5th solenoid valve 18 are opened, electronic
The high-temperature high-pressure refrigerant gas that compressor 1 is discharged is through condenser 2 and the in-vehicle air heat exchange into the car of the first solenoid valve 16
To increase crew module's temperature, the refrigerant that interior condenser 2 comes out enters outside vehicle after the throttling of third electric expansion valve 20 to be changed
Hot device 3, vehicle external heat exchanger 3 returns after being used as evaporator, the refrigerant that vehicle external heat exchanger 3 comes out to enter gas-liquid separator 13 at this time
Motor compressor 1.In battery thermal management circuit, the first three-way control valve 25, the second three-way control valve 26 control the first working medium
By radiator 6, electronic water pump 10 and battery pack 7.Under the 7th heat exchange mode, the heat management system passes through natural cooling side
Formula cools down battery, supplies the appropriate heat of crew module by interior condenser 2.
The heat management system of the present embodiment can also be used to realize that the 8th heat exchange mode, working condition are as shown in Figure 9.It is described
8th heat exchange mode is preferably T in environment temperature8Shi Yunhang, T8Preferably larger or equal than -10 DEG C but less than 0 DEG C.At this point,
Battery pack 7 is preheated to be had been turned on, and heat management system continues to heat battery, but supplies the appropriate heat of crew module simultaneously.In refrigerant
In circuit, second solenoid valve 17, third solenoid valve 19, the 4th solenoid valve 24 are closed, and the first solenoid valve 16, the 5th solenoid valve 18 are opened
It opens, the high-temperature high-pressure refrigerant gas that motor compressor 1 is discharged is through the first solenoid valve 16 condenser 2 and in-vehicle air into the car
To increase crew module's temperature, the refrigerant that interior condenser 2 comes out enters after the throttling of third electric expansion valve 20 for heat exchange
Vehicle external heat exchanger 3, vehicle external heat exchanger 3 is used as evaporator at this time, and the refrigerant that vehicle external heat exchanger 3 comes out enters gas-liquid separator
Motor compressor 1 is returned after 13.In battery thermal management circuit, the first three-way control valve 25, the control of the second three-way control valve 26
First working medium is by primary heater, electronic water pump 10 and battery pack 7.First electric heater 9 is supplied by Vehicular accumulator cell
Electric energy, motor compressor 1 provide electric energy by battery pack 7.Under the 8th heat exchange mode, the pre- thermal cell of heat management system, together
When supply the appropriate heat of crew module.
The heat management system of the present embodiment can also be used to realize that the 9th heat exchange mode, working condition are as shown in Figure 10.Institute
Stating the 9th heat exchange mode is preferably T in environment temperature9Shi Yunhang, T9Preferably less than -10 DEG C.At this point, battery pack 7 can not be just
Often starting, heat management system ensure that battery pack 7 can normally start work by heating battery pack 7.The refrigerant circuit not work
Make；First three-way control valve 25, second three-way control valve 26 in the battery thermal management circuit control the first working medium and pass through first
Electric heater 9, electronic water pump 10 and battery pack 7.First electric heater 9 overcomes electricity by Vehicular accumulator cell supply of electrical energy
The problem of electrical automobile low temperature can not normally start.Under the 9th heat exchange mode, only pre- thermal cell, holding are electric for the heat management system
Pond can normally start.
The heat management system of the present embodiment, in the first solenoid valve 16, the 5th solenoid valve 18, third electromagnetism of refrigerant circuit
Valve 19 is closed, and the second electric expansion valve 22 is closed, and second solenoid valve 17, the 4th solenoid valve 24 are opened；Battery thermal management circuit
First three-way control valve 25, the second three-way control valve 26 control the first working medium and pass through battery cooler 4, electronic water pump 10 and battery
In the case where packet 7, the first heat exchange mode is realized.
The heat management system of the present embodiment, in the first solenoid valve 16, the 5th solenoid valve 18, third electromagnetism of refrigerant circuit
Valve 19 is closed, and second solenoid valve 17, the 4th solenoid valve 24 are opened；First three-way control valve 25, second in battery thermal management circuit
In the case that three-way control valve 26 controls the first working medium by battery cooler 4, electronic water pump 10 and battery pack 7, second is realized
Heat exchange mode.
The heat management system of the present embodiment, in the first solenoid valve 16, the 5th solenoid valve 18, third electromagnetism of refrigerant circuit
Valve 19 is closed, and the first electric expansion valve 21 is closed, and second solenoid valve 17, the 4th solenoid valve 24 are opened；Battery thermal management circuit
First three-way control valve 25, the second three-way control valve 26 control the first working medium by radiator 6, electronic water pump 10 and battery pack 7
In the case where, realize third heat exchange mode.
The heat management system of the present embodiment does not work in refrigerant circuit；First threeway in battery thermal management circuit is adjusted
It is real in the case that valve 25, the second three-way control valve 26 control the first working medium by radiator 6, electronic water pump 10 and battery pack 7
Existing 4th heat exchange mode.
The heat management system of the present embodiment, second solenoid valve 17, the 5th solenoid valve 18, the 4th electromagnetism in refrigerant circuit
Valve 24 is closed, and the first solenoid valve 16, third solenoid valve 19 are opened；First three-way control valve 25, second in battery thermal management circuit
In the case that three-way control valve 26 controls the first working medium by radiator 6, electronic water pump 10 and battery pack 7, the 5th heat exchange is realized
Mode.
The heat management system of the present embodiment can be used for switching heat exchange mode, the logical relation of switching according to environment temperature
As shown in figure 11, the temperature range according to locating for environment temperature selects heat exchange mode to figure, to realize to battery pack 7 and crew module
Temperature most reasonably regulates and controls, and realization is energy-efficient, avoids energy dissipation.
Further, in the 5th heat exchange mode or the 6th heat exchange mode, the leaving air temp of air-conditioning box 29 is by third electronics
The aperture influence of expansion valve 20, the second electric expansion valve 22, referring to attached drawing 12, third electric expansion valve 20, the second electronic expansion
The aperture of valve 22 when 0~100% is adjusted 29 leaving air temp of linear adjustable air-conditioning box from minimum value to maximum value.
Preferably, in the above-described embodiments, air blower 12, air door 28 and the second electricity are additionally provided in the air-conditioning box 29 to add
Hot device 8.The air blower 12 realizes different air-conditionings by changing direction for providing the power of air circulation, the air door 28
The distribution of 29 interior air-flow of case meets different heat exchange mode requirements.Second electric heater 8 is preferably high pressure PTC electric heating
Device, for auxiliary heat supplying in the insufficient situation of 2 heat supply of condenser in the car.Heat management system in the application mainly passes through heat pump
Air-conditioning to carry out heat supply to crew module, and high pressure PTC electric heater only assists, so that the energy consumption of battery pack 7 is greatly reduced,
Extend the mileage travelled of electric car.
Preferably, in the above-described embodiments, cooling fan 11 is equipped at vehicle external heat exchanger 3, the cooling fan 11 is used for
Air-flow is provided for the vehicle external heat exchanger 3, to improve the heat transfer effect of vehicle external heat exchanger 3.Further, in some embodiments
In, the cooling fan 11 can also provide air-flow for radiator 6, improve the heat transfer effect of radiator 6 and air.
It should be noted that the embodiments of the present invention have preferable implementation, and not the utility model is appointed
The limitation of what form, any one skilled in the art change or are modified to possibly also with the technology contents of the disclosure above
Same effective embodiment, as long as without departing from the content of technical solutions of the utility model, according to the technical essence of the utility model pair
Any modification or equivalent variations and modification, are still within the scope of the technical solutions of the present invention made by above embodiments.
Claims (9)
1. a kind of heat management system for electric car, which is characterized in that
The heat management system includes battery thermal management circuit, refrigerant circuit and is serially connected with simultaneously described including battery thermal management
The battery cooler (4) in circuit and refrigerant circuit；
The battery cooler (4) is for realizing in the first working medium and the refrigerant circuit in the battery thermal management circuit
The second working medium heat exchange；
The heat management system is adjusted for realizing the temperature of battery pack (7) and/or crew module to electric car.
2. heat management system as described in claim 1, which is characterized in that
The battery thermal management circuit includes the electronic water pump (10) that circuit is in turn connected by pipeline, battery pack (7), battery
Cooler (4), the first expansion tank (15)；
Refrigerant circuit includes the motor compressor (1) that circuit is in turn connected by pipeline, vehicle external heat exchanger (3), the first electricity
Sub- expansion valve (21), fluid reservoir (27), battery cooler (4), gas-liquid separator (13).
3. heat management system as claimed in claim 2, which is characterized in that
The battery thermal management circuit further includes radiator (6)；
Pipeline between the battery pack (7) and the battery cooler (4) is equipped with the first three-way control valve (25), and described the
One three-way control valve (25) for changing the first working medium described in pipeline flow direction；
The first end of the radiator (6) by piping connection to first three-way control valve (25), the radiator (6)
Second end is connected on the pipeline between the electronic water pump (10) and first expansion tank (15), the radiator (6)
Pipeline between the first three-way control valve (25) is equipped with the second expansion tank (14).
4. heat management system as claimed in claim 3, which is characterized in that
The battery thermal management circuit further includes the first electric heater (9)；
The second three-way control valve (26) are equipped between the battery pack (7) and first three-way control valve (25), described second
Three-way control valve (26) for changing the first working medium described in pipeline flow direction；
The first end of first electric heater (9) passes through piping connection to second three-way control valve (26), the heat dissipation
The second end of device (6) is connected on the pipeline between the electronic water pump (10) and first expansion tank (15).
5. heat management system as claimed in claim 2, which is characterized in that
The refrigerant circuit further includes the interior evaporator (5) being arranged in the electric automobile air conditioner case (29)；
Pipeline between the fluid reservoir (27) and first electric expansion valve (21) is equipped with the first three-way interface (30), institute
The pipeline stated between battery cooler (4) and the gas-liquid separator (13) is equipped with the second three-way interface (31)；
The first end of the car evaporator (5) passes through piping connection to first three-way interface (30), the interior evaporation
The second end of device (5) passes through piping connection to second three-way interface (31)；
Pipeline between the car evaporator (5) and second three-way interface (31) is equipped with the second electric expansion valve
(22)。
6. heat management system as claimed in claim 5, which is characterized in that
The refrigerant circuit further includes the interior condenser (2) being arranged in the air-conditioning box (29)；
Pipeline between the motor compressor (1) and the vehicle external heat exchanger (3) is equipped with third three-way interface (32)；
Pipeline between first three-way interface (30) and second electric expansion valve (22) is equipped with the 4th three-way interface
(33)；
The first end of the car condenser (2) passes through piping connection to the third three-way interface (32), the interior condensation
The second end of device (2) passes through piping connection to the 4th three-way interface (33)；
Pipeline between the third three-way interface (32) and the interior condenser (2) is equipped with the first solenoid valve (16)；
Pipeline between the third three-way interface (32) and the vehicle external heat exchanger (3) is equipped with second solenoid valve (17).
7. heat management system as claimed in claim 6, which is characterized in that
Pipeline between the vehicle external heat exchanger (3) and the fluid reservoir (27) is equipped with the 5th three-way interface (34)；
Pipeline between the car condenser (2) and the 4th three-way interface is equipped with the 6th three-way interface (35)；
Pass through piping connection between 6th three-way interface (35) and the 5th three-way interface (34), is successively arranged on pipeline
Third electric expansion valve (20), check-valves (23)；
Pipeline between the second solenoid valve (17) and the vehicle external heat exchanger (3) is equipped with the 7th three-way interface (36)；
Pipeline between second three-way interface (31) and the gas-liquid separator (13) is equipped with the 8th three-way interface (37)；
Pass through piping connection between 7th three-way interface (36) and the 8th three-way interface (37)；
Pipeline between 4th three-way interface (33) and the 6th three-way interface (35) is equipped with third solenoid valve (19)；
Pipeline between 5th three-way interface (34) and the fluid reservoir (27) is equipped with the 4th solenoid valve (24)；
Pipeline between 7th three-way interface (36) and the 8th three-way interface (37) is equipped with the 5th solenoid valve (18).
8. the heat management system as described in any one of claim 5-7, which is characterized in that
Air blower (12), air door (28) and the second electric heater (8) are additionally provided in the air-conditioning box (29).
9. the heat management system as described in any one of claim 5-7, which is characterized in that
Cooling fan (11) are equipped at the vehicle external heat exchanger (3), the cooling fan (11) is used to be the vehicle external heat exchanger
(3) air-flow is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821865570.7U CN209381734U (en) | 2018-11-13 | 2018-11-13 | A kind of heat management system for electric car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821865570.7U CN209381734U (en) | 2018-11-13 | 2018-11-13 | A kind of heat management system for electric car |
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| CN209381734U true CN209381734U (en) | 2019-09-13 |
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ID=67864461
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| CN201821865570.7U Active CN209381734U (en) | 2018-11-13 | 2018-11-13 | A kind of heat management system for electric car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466274A (en) * | 2018-11-13 | 2019-03-15 | 上海爱斯达克汽车空调系统有限公司 | A kind of heat management system for electric car |
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2018
- 2018-11-13 CN CN201821865570.7U patent/CN209381734U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109466274A (en) * | 2018-11-13 | 2019-03-15 | 上海爱斯达克汽车空调系统有限公司 | A kind of heat management system for electric car |
| CN109466274B (en) * | 2018-11-13 | 2024-03-08 | 上海爱斯达克汽车空调系统有限公司 | Thermal management system for electric automobile |
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