CN110385963A - A kind of electric automobile air-conditioning system and its control method - Google Patents
A kind of electric automobile air-conditioning system and its control method Download PDFInfo
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- CN110385963A CN110385963A CN201910681755.5A CN201910681755A CN110385963A CN 110385963 A CN110385963 A CN 110385963A CN 201910681755 A CN201910681755 A CN 201910681755A CN 110385963 A CN110385963 A CN 110385963A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002826 coolant Substances 0.000 claims abstract description 296
- 239000003507 refrigerant Substances 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 28
- 238000010248 power generation Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 76
- 230000001105 regulatory effect Effects 0.000 claims description 74
- 238000010438 heat treatment Methods 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 238000005057 refrigeration Methods 0.000 claims description 8
- 239000000110 cooling liquid Substances 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 101100410162 Caenorhabditis elegans ptc-3 gene Proteins 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/03—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/14—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
- B60H1/143—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a kind of electric automobile air-conditioning system and its control methods, the electric automobile air-conditioning system includes refrigerant circuit and coolant circuit, the coolant circuit includes power plant module, radiating module, temperature-difference power generation module and the first coolant recirculation pump, the power plant module connects the radiating module by the first coolant line, the radiating module connects first coolant recirculation pump by the second coolant line, first coolant recirculation pump connects the power plant module by third coolant line, the temperature-difference power generation module is between first coolant line and second coolant line, the waste heat that the present invention can effectively recycle electric powered motor part heats, the cooling of power section can be completed without independent cooling system simultaneously, reduce making for ptc heater With improving the cruising ability of electric car.
Description
Technical field
The present invention relates to electric automobile air conditioner technical field, in particular to a kind of electric automobile air-conditioning system and its controlling party
Method.
Background technique
With the development of electric vehicle engineering, there are certain restrictions for development of the electric automobile air-conditioning system to electric car
Property, ptc heater is called PTC heater, is formed using PTC ceramics heater element and aluminum pipe, fast with heat exchange efficiency height, heating
The characteristics of, current electric automobile air-conditioning system mostly uses ptc heater to realize warm wind heating function and utilize in winter
Ptc heater is that power battery heats regular picture to guarantee power battery, in order to realize the warm air function of electric car with
And ensure that the normal work of power battery usually requires two ptc heaters and participates in work, and ptc heater power consumption itself
Greatly, the distance travelled of electric car can be greatly reduced after starting；In addition, power battery itself can generate during charge and discharge
A large amount of heat needs the heat by power battery itself to exclude, for electric car to guarantee the safety of battery
Other energy consumption equipments such as driving motor and electric machine controller etc., which are equally also required to good cooling, to work, and then need
Design independent cooling system and carry out radiating treatment, can largely effect on the course continuation mileage of electric car in this way, and power battery and
The fever of the energy consumption equipments such as driving motor itself is also not used, and causes the waste of the energy.
Thus the prior art could be improved and improve.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of electric automobile air-conditioning system and
Its control method, the power section work that the electric automobile air-conditioning system can sufficiently recycle electric car itself generate
Heat, while also can effectively be cooled down for power section, to reach the technical effect of energy saving, improve electronic vapour
The cruising ability of vehicle.
In order to achieve the above object, this invention takes following technical schemes:
A kind of electric automobile air-conditioning system, including refrigerant circuit and coolant circuit, the coolant circuit include dynamic
Power module, radiating module, temperature-difference power generation module and the first coolant recirculation pump, the power plant module pass through the first coolant line
The radiating module is connected, the radiating module connects first coolant recirculation pump by the second coolant line, described
First coolant recirculation pump connects the power plant module by third coolant line, and the temperature-difference power generation module is located at described the
Between one coolant line and second coolant line.
In the electric automobile air-conditioning system, the coolant circuit further includes heater tank, and the heater tank is logical
It crosses the 4th coolant line to connect with first coolant line, and cold by the 5th coolant line and the third
But liquid pipeline connects；4th coolant line is connected to by the first regulating valve with first coolant line, and described the
One coolant line is additionally provided with the second regulating valve for adjusting the power plant module Yu the radiating module connection status, institute
The second coolant line is stated to be connected to by third regulating valve with the 5th coolant line.
In the electric automobile air-conditioning system, the coolant circuit further includes ptc heater, the ptc heater
It is connect by the 6th coolant line with first coolant line, and cooling by the 7th coolant line and the third
Liquid pipeline connection, the 6th coolant line are provided with the second coolant recirculation pump；First coolant line is also set up
There is the 4th regulating valve, the third coolant line is provided with the 5th regulating valve.
In the electric automobile air-conditioning system, the radiating module includes radiator, and the radiator passes through described the
One coolant line is connect with the power plant module, and passes through second coolant line and first coolant recirculation pump
Connection.
In the electric automobile air-conditioning system, the radiating module includes going back cold metal conductive block, and the radiator is logical
The first coolant line connection is crossed, and is connect by the 8th coolant line with the cold metal conductive block, the cold gold
Belong to conductive block also to connect by second coolant line with first coolant recirculation pump.
In the electric automobile air-conditioning system, the temperature-difference power generation module includes thermoelectric generation film, the thermo-electric generation
Piece is between first coolant line and second coolant line.
In the electric automobile air-conditioning system, the refrigerant circuit includes compressor, condenser, expansion valve, evaporation
Device and liquid storage dryer, the compressor are connect by the first refrigerant line with the condenser, and the condenser passes through institute
It states second refrigerant pipeline to connect with the expansion valve, the expansion valve is connect with the evaporator, and the expansion valve also passes through
Third refrigerant line is connect with the cold metal conductive block, and the cold metal conductive block also passes through the 4th refrigerant line and institute
Liquid storage dryer connection is stated, the liquid storage dryer also passes through the 5th refrigerant line and connect with the compressor.
In the electric automobile air-conditioning system, the expansion valve is electric expansion valve or heating power expansion valve.
In the electric automobile air-conditioning system, the evaporator is pipe type evaporator, band tubular evaparator or stacking
Formula evaporator.
A kind of control method based on electric automobile air-conditioning system as described above, including refrigeration mode and heating mode:
In refrigeration mode, refrigerant circuit work, the first regulating valve described in the coolant circuit and described
Third regulating valve is turned off, and second regulating valve, the 4th regulating valve and the 5th regulating valve are opened；Described first
Coolant recirculation pump is opened, and cryogenic liquid flows through the power plant module by the third coolant line and absorbs the power
Become high temperature coolant after the heat of module, high temperature coolant, which passes through the first coolant line again and flows through the radiator, carries out the
Primary cooling, passing through the cold metal conductive block later and being cooled down twice becomes cryogenic liquid, and cryogenic liquid leads to again
It crosses the second coolant line and flow to third coolant line；
In heating mode, the refrigerant circuit is closed, and the 4th regulating valve and the 5th in the coolant circuit are adjusted
Valve is saved to close, second coolant recirculation pump is opened, and the ptc heater is opened, heat the 6th coolant line and
Coolant liquid in seven coolant line, it is described dynamic for obtaining high temperature coolant by second coolant recirculation pump circulation
Power module heating, so that after the power plant module reaches preset temperature work；Second coolant recirculation pump and the PTC add
Hot device is turned off, and the 4th regulating valve, the 5th regulating valve and the first regulating valve are opened, second regulating valve and described
Three regulating valves are turned off, and first coolant recirculation pump is opened, and high temperature coolant is cold by the first coolant line and the 4th
But liquid pipeline flows through heater tank, then flows through the first coolant recirculation pump by the 5th coolant line and obtain sub-cooled
Liquid, cryogenic liquid flows through the power plant module by the third coolant line, after the heat for absorbing the power plant module
Become high temperature coolant, high temperature coolant passes through the first coolant line again and the 4th coolant line flow to the warm wind water
Case.
Compared to the prior art, a kind of electric automobile air-conditioning system provided by the invention and its control method, it is described electronic
Automotive air-conditioning system includes refrigerant circuit and coolant circuit, and the coolant circuit includes power plant module, radiating module, temperature
Poor electricity generation module and the first coolant recirculation pump, the power plant module connect the radiating module by the first coolant line,
The radiating module connects first coolant recirculation pump by the second coolant line, and first coolant recirculation pump is logical
Cross third coolant line and connect the power plant module, the temperature-difference power generation module be located at first coolant line with it is described
Between second coolant line, the waste heat that the present invention can effectively recycle electric powered motor part heats, together
The cooling of power section can be completed in the independent cooling system of Shi Wuxu, reduces the use of ptc heater, improves electronic vapour
The cruising ability of vehicle.
Detailed description of the invention
Fig. 1 is the structure chart of coolant circuit in electric automobile air-conditioning system provided by the invention；
Fig. 2 is schematic diagram of the electric automobile air-conditioning system provided by the invention in heating mode；
Fig. 3 is schematic diagram of the electric automobile air-conditioning system provided by the invention in refrigeration mode.
Specific embodiment
The present invention, which provides a kind of electric automobile air-conditioning system and its control method, the electric automobile air-conditioning system, to fill
Point recycle the heat that the power section work of electric car itself generates, while no setting is required independent cooling system
Realize effective cooling of power section, and then energy saving, the cruising ability for improving electric car.
It please refers to Fig. 1 and Fig. 2, electric automobile air-conditioning system provided by the invention, including refrigerant circuit and coolant liquid is returned
Road, the coolant circuit include power plant module 100, radiating module 200, temperature-difference power generation module 300 and the first coolant liquid circulation
Pump 11, the power plant module 100 connect the radiating module 200 by the first coolant line 11, and the radiating module 200 is logical
It crosses the second coolant line 12 and connects first coolant recirculation pump 1, first coolant recirculation pump 1 is cooling by third
Liquid pipeline 13 connects the power plant module 100, the temperature-difference power generation module 300 be located at first coolant line 11 with it is described
Between second coolant line 12.
When it is implemented, providing power after the unlatching of power plant module 100 for the operation of electric car, guarantee electric car
Normal operation work can generate heat in this process power plant module 100 itself described in, and in order to guarantee the power mould
The normal work of block 100 needs to cool down it, and the first coolant recirculation pump 1 is opened at this time, the first coolant liquid circulation
Pump 1 is opened, so that the coolant liquid is cooling by the first coolant line 11, second coolant line 12 and the third
Liquid pipe reason is recycled, and specifically, the cryogenic liquid in the third coolant line 13 can flow through the power plant module 100
Become high temperature coolant to absorb the heat of the power plant module 100, high temperature coolant passes through the first coolant line 11 later
Flowing through the external progress radiating and cooling of radiating module 200 becomes cryogenic liquid, and cryogenic liquid passes through the second pipeline stream later
To first coolant recirculation pump 1, so circulation forms coolant circuit；Wherein, the temperature-difference power generation module 300 can
The temperature difference formed using the cryogenic liquid in the high temperature coolant and the second coolant line 12 in the first coolant line 11
It generates electricity, can be realized the cooling to power plant module 100, while the heat that the power plant module 100 is generated in the process
Amount carries out recycling storage, and then can effectively avoid the waste of the heat of the power plant module 100, without independent cooling
System cools down the power plant module 100.
Further, please continue to refer to Fig. 2, the coolant circuit further includes heater tank 2, and the heater tank 2 is logical
The 4th coolant line 14 is crossed to connect with first coolant line 11, and by the 5th coolant line 15 with it is described
Third coolant line 13 connects；4th coolant line 14 passes through the first regulating valve 41 and first coolant line
11 connections, first coolant line 11, which is additionally provided with, to be connected for adjusting the power plant module 100 with the radiating module 200
The second regulating valve 42 of state is connect, second coolant line 12 passes through third regulating valve 43 and the 5th coolant line
15 connections.
When the electric automobile air-conditioning system is when carrying out heating mode operation in winter, first regulating valve 41 open and
Second regulating valve 42 and the third regulating valve 43 are turned off, and first coolant recirculation pump 1 starts, and the third is cold
But the cryogenic liquid in liquid pipeline 13, which flows through the power plant module 100 and absorbs the heat of the power plant module 100, becomes high temperature
Coolant liquid, high temperature coolant flow through heater tank 2 by first coolant line 11 and the 4th coolant line 14
Heater tank 2 is heated, to realize the interior heat supply of electric car, since the heat supply of heater tank 2 is the prior art, herein not
It is described in detail；Coolant liquid after heater tank 2 is heated later flow to the third coolant liquid by the 5th coolant line 15
Pipeline 13 so recycles, so that the electric automobile air-conditioning system can be by heat that the power plant module 100 generates benefit in winter
The interior heating of progress is used, also can be realized the refrigerating function of the power plant module 100 at the same time；And it is not needing to utilize
When the heat of the power plant module 100 is heated, first regulating valve 41 can also be closed, opens second regulating valve
42 and the third regulating valve 43, the heat combination temperature-difference power generation module 300 of the power plant module 100 is subjected to recycling storage,
The waste of the heat of the power plant module 100 is avoided, effectively to achieve the purpose that energy saving；Meanwhile relative to traditional electricity
For the air-conditioning system of electrical automobile, heated in the application using the heat of the power plant module 100, to replace PTC to heat
3 heating of device can reduce the use of ptc heater 3, and then improve the cruising ability of electric car.
Further, the coolant circuit further includes ptc heater 3, and the ptc heater 3 passes through the 6th coolant liquid
Pipeline 16 is connect with first coolant line 11, and passes through the 7th coolant line 17 and the third coolant line 13
Connection, the 6th coolant line 16 are provided with the second coolant recirculation pump 4；First coolant line 11 is additionally provided with
4th regulating valve 44, the third coolant line 13 are provided with the 5th regulating valve 45.
Preferably, power plant module 100 described in the present embodiment includes power battery 110, electric machine controller 120 and the drive
Dynamic motor 130, specifically, the ptc heater 3 connects first coolant line by the 6th coolant line 16
11, the ptc heater 3 connects the third coolant line 13 by the 7th coolant line 17, so that the PTC
Heater 3 is connected in parallel on the both ends of the power battery 110；The electric machine controller 120 then passes through the 9th coolant line respectively
19 connection first coolant lines 11, and the third coolant line 13, institute are connected by the tenth coolant line 20
It states driving motor 130 and first coolant line 11 is connected by the 11st coolant line 21, and is cooling by the 12nd
Liquid pipeline 22 connects the third coolant line 13.
In the present embodiment, for the electric automobile air-conditioning system when working in winter, the temperature of the power battery 110 is too low
It will affect the electric discharge of battery, it is therefore desirable to which the heating of ptc heater 3 specifically closes the 4th regulating valve 44 and institute at this time
The 5th regulating valve 45 is stated, and starts second coolant recirculation pump 4 and the ptc heater 3, and then the 7th coolant line
Coolant liquid in 17 flows through the ptc heater 3, is flowing through power battery 110 by the 9th coolant line 19 later, is giving institute
It states after power battery 110 heats and ptc heater 3 is flow to by the 7th coolant line 17 again, so recycle, heated by PTC
3 heated cooling fluid of device is the power battery 110 heating, after the power battery 110 reaches preset operating temperature, institute
It states ptc heater 3 and second coolant recirculation pump 4 stops working, open simultaneously the 4th regulating valve 44, the described 5th
Regulating valve 45 and first regulating valve 41, and second regulating valve 42 and the third regulating valve 43 are closed, and then third
Cryogenic liquid in coolant line 13 passes through the power battery 110 by the third coolant line 13, passes through suction
Become high temperature coolant after the heat of receipts power battery 110 and flow to first coolant line 11, while the third is cold
But the cryogenic liquid of liquid pipeline 13 also flows through the electric machine controller 120 by the 9th coolant line 19, passes through suction
Receive the electric machine controller 120 heat become high temperature coolant after, it is cold to flow to first by the tenth coolant line 20
But liquid pipeline 11；In addition, the cryogenic liquid in the third coolant line 13 also passes through the 11st coolant line
21 flow through the driving motor 130, after becoming high temperature coolant after the heat by absorbing the driving motor 130, pass through institute
It states the 12nd coolant line 22 and flow to first coolant line 11, later the High-temperature cooling in the first coolant line 11
Liquid stream flow to the first coolant recirculation pump 1 through the heater tank 2, then by the 5th coolant line 15, so that will warm up
Coolant liquid after geomantic omen case 2 heats is back to third coolant line 13 again, so recycles, and heats in realization electric car
Simultaneously, additionally it is possible to realize the refrigerating function to power battery 110, electric machine controller 120 and driving motor 130.
Further, the radiating module 200 includes radiator 210, and the radiator 210 passes through first coolant liquid
Pipeline 11 is connect with the power battery 110, and passes through second coolant line 12 and first coolant recirculation pump 1
It connects, the high temperature coolant in first coolant line 11 becomes low temperature cold after radiator 210 carries out radiating and cooling
But liquid, cryogenic liquid flow through the first coolant recirculation pump 1 to the coolant line by second coolant line 12,
It is described due to being provided with temperature-difference power generation module 300 between first coolant line 11 and second coolant line 12
Temperature-difference power generation module 300 passes through in the high temperature coolant and second coolant line 12 in first coolant line 11
Cryogenic liquid formed the temperature difference generate electricity, and then realize to the power battery 110,120 and of the electric machine controller
The recycling storage of heat, energy saving in the driving motor 130.
Preferably, the radiating module 200 includes going back cold metal conductive block 220, and the radiator 210 passes through described first
Coolant line 11 connects, and is connect by the 8th coolant line 18 with the cold metal conductive block 220, and the cold metal passes
Guide block 220 is also connect by second coolant line 12 with first coolant recirculation pump 1, when first coolant liquid
High temperature coolant in pipeline 11 passes through radiator 210 and carries out the first cooling of heat dissipation completion and then by the 8th cooling
Liquid pipeline 18 flows through the cold metal conductive block 220 and carries out second flowing out after cooling down by second coolant line 12,
By cooling down twice, so that the sub-cooled in high temperature coolant and the second coolant line 12 in the first coolant line 11
The temperature difference between liquid is bigger, so that the generating effect of thermoelectric generation film is more preferable.
It is further preferred that the temperature-difference power generation module 300 includes thermoelectric generation film, the thermoelectric generation film is located at described
Between first coolant line 11 and second coolant line 12, when the electric automobile air-conditioning system is in cooling in summer
In the process, the coolant liquid in the coolant circuit can be by power battery 110, the hair of electric machine controller 120 and driving motor 130
After hot heat absorption, the temperature difference is formed in first coolant line 11 and second coolant line 12, utilizes the temperature difference
Power generation sheet generates electricity, and then realizes the recycling storage of waste heat.
Further, the refrigerant circuit includes that compressor 5, condenser 6, expansion valve 7, evaporator 8 and liquid storage are dry
Device 9, the compressor 5 are connect by the first refrigerant line 31 with the condenser 6, and the condenser 6 passes through described second
Refrigerant line 32 is connect with the expansion valve 7, and the expansion valve 7 is connect with the evaporator 8, and the expansion valve 7 also passes through
Third refrigerant line 33 is connect with the cold metal conductive block 220, and the cold metal conductive block 220 also passes through the 4th refrigerant
Pipeline 34 is connect with the liquid storage dryer 9, and the liquid storage dryer 9 also passes through the 5th refrigerant line 35 and the compressor
5 connections, it is preferable that the expansion valve 7 is electric expansion valve 7 or heating power expansion valve 7；The evaporator 8 is pipe type evaporator
8, band tubular evaparator 8 or laminated evaporator 8.
Also referring to Fig. 3, the electric automobile air-conditioning system is when entering refrigeration mode in summer, the refrigerant circuit
It opens and carries out air conditioner refrigerating, while the first regulating valve 41 described in the coolant circuit and the third regulating valve 43 are closed
It closes, second regulating valve 42, the 4th regulating valve 44 and the 5th regulating valve 45 are opened, and starting described first is passed through
Coolant recirculation pump 1 realizes the circulation of coolant liquid and then completes power battery 110, electric machine controller 120 and driving motor 130
Cooling and power battery 110, electric machine controller 120 and driving motor 130 heat recycling；When the electric car is empty
Adjusting system when entering heating mode in winter, then close by the refrigerant circuit, the 4th regulating valve in the coolant circuit
44 and the 5th regulating valve 45 open, second coolant recirculation pump 4 is opened, and ptc heater 3 works heated power battery 110
Afterwards, the 4th regulating valve 44, the 5th regulating valve 45 and the first regulating valve 41 are opened, second regulating valve 42 and described
Three regulating valves 43 are turned off, and open the first coolant recirculation pump 1, using the power battery 110, electric machine controller 120 and are driven
The heat of dynamic motor 130 completes the heat-production functions of air-conditioning, reduces the use of ptc heater 3, improves the continuation of the journey of electric car
Ability.
The present invention also correspondingly provides a kind of control method of electric automobile air-conditioning system, specifically includes two kinds of Working moulds
Formula, i.e. refrigeration mode and heating mode, in refrigeration mode, the refrigerant circuit work, described in the coolant circuit
First regulating valve 41 and the third regulating valve 43 are turned off, second regulating valve 42, the 4th regulating valve 44 and described
5th regulating valve 45 is opened；First coolant recirculation pump 1 is opened, and cryogenic liquid passes through the third coolant line
13 the heat of the power plant module 100 is absorbed to the power plant module 100 after become high temperature coolant, high temperature coolant passes through again
First coolant line 11 flows through the radiator 210 and carries out first time cooling, passes through the cold metal conductive block 220 later
Being cooled down twice becomes cryogenic liquid, and cryogenic liquid passes through the second coolant line 12 again and flow to third coolant line
13, the waste heat that so circulation completes power plant module 100 recycles.
In heating mode, the refrigerant circuit is closed, the 4th regulating valve 44 and the 5th in the coolant circuit
Regulating valve 45 is closed, and second coolant recirculation pump 4 is opened, and the ptc heater 3 is opened, and heats the 6th coolant liquid
Coolant liquid in pipeline 16 and seven coolant line obtains high temperature coolant and is followed by second coolant recirculation pump 4
Ring is the power plant module 100 heating, so that after the power plant module 100 reaches preset temperature work；Second coolant liquid
Circulating pump 4 and the ptc heater 3 are turned off, and the 4th regulating valve 44, the 5th regulating valve 45 and the first regulating valve 41 are beaten
It opens, second regulating valve 42 and the third regulating valve 43 are turned off, and first coolant recirculation pump 1 is opened, and high temperature is cold
But liquid flows through heater tank 2 by the first coolant line 11 and the 4th coolant line 14, then passes through the 5th coolant liquid
Pipeline 15 flows through the first coolant recirculation pump 1 and obtains cryogenic liquid, and cryogenic liquid passes through the third coolant line 13
The power plant module 100 is flowed through, becomes high temperature coolant after absorbing the heat of the power plant module 100, high temperature coolant leads to again
It crosses the first coolant line 11 and the 4th coolant line 14 flows through the heater tank 2, so circulation is completed heating and moved
The UTILIZATION OF VESIDUAL HEAT IN of power module 100.
In conclusion a kind of electric automobile air-conditioning system provided by the invention and its control method, the electric car is empty
Adjusting system includes refrigerant circuit and coolant circuit, and the coolant circuit includes power plant module, radiating module, thermo-electric generation
Module and the first coolant recirculation pump, the power plant module connects the radiating module by the first coolant line, described to dissipate
Thermal modules connect first coolant recirculation pump by the second coolant line, and first coolant recirculation pump passes through third
Coolant line connects the power plant module, and the temperature-difference power generation module is located at first coolant line and described second cold
But between liquid pipeline, the waste heat that the present invention can effectively recycle electric powered motor part heats, and is not necessarily to simultaneously
Independent cooling system can be completed the cooling of power section, and the less use of ptc heater improves the continuous of electric car
Boat ability.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (10)
1. a kind of electric automobile air-conditioning system, which is characterized in that including refrigerant circuit and coolant circuit, the coolant liquid is returned
Road includes power plant module, radiating module, temperature-difference power generation module and the first coolant recirculation pump, and the power plant module is cold by first
But liquid pipeline connects the radiating module, and the radiating module connects the first coolant liquid circulation by the second coolant line
Pump, first coolant recirculation pump connect the power plant module, the temperature-difference power generation module position by third coolant line
Between first coolant line and second coolant line.
2. electric automobile air-conditioning system according to claim 1, which is characterized in that the coolant circuit further includes warm wind
Water tank, the heater tank are connect by the 4th coolant line with first coolant line, and cold by the 5th
But liquid pipeline is connect with the third coolant line；4th coolant line is cold by the first regulating valve and described first
But liquid pipeline is connected to, and first coolant line, which is additionally provided with, to be connect for adjusting the power plant module with the radiating module
Second regulating valve of state, second coolant line are connected to by third regulating valve with the 5th coolant line.
3. electric automobile air-conditioning system according to claim 2, which is characterized in that the coolant circuit further includes PTC
Heater, the ptc heater are connect by the 6th coolant line with first coolant line, and cooling by the 7th
Liquid pipeline is connect with the third coolant line, and the 6th coolant line is provided with the second coolant recirculation pump；It is described
First coolant line is additionally provided with the 4th regulating valve, and the third coolant line is provided with the 5th regulating valve.
4. electric automobile air-conditioning system according to claim 3, which is characterized in that the radiating module includes radiator,
The radiator is connect by first coolant line with the power plant module, and by second coolant line with
The first coolant recirculation pump connection.
5. electric automobile air-conditioning system according to claim 4, which is characterized in that the radiating module includes going back cold metal
Conductive block, the radiator are connect by first coolant line with the power plant module, and pass through the 8th coolant pipe
Road is connect with the cold metal conductive block, and the cold metal conductive block is also cold by second coolant line and described first
But liquid circulating pump connects.
6. electric automobile air-conditioning system according to claim 4, which is characterized in that the temperature-difference power generation module includes the temperature difference
Power generation sheet, the thermoelectric generation film is between first coolant line and second coolant line.
7. electric automobile air-conditioning system according to claim 5, which is characterized in that the refrigerant circuit includes compression
Machine, condenser, expansion valve, evaporator and liquid storage dryer, the compressor pass through the first refrigerant line and the condenser
Connection, the condenser are connect by the second refrigerant pipeline with the expansion valve, the expansion valve and the evaporator
Connection, the expansion valve also pass through third refrigerant line and connect with the cold metal conductive block, and the cold metal conductive block is also
It is connect by the 4th refrigerant line with the liquid storage dryer, the liquid storage dryer also passes through the 5th refrigerant line and institute
State compressor connection.
8. electric automobile air-conditioning system according to claim 7, which is characterized in that the expansion valve be electric expansion valve or
Heating power expansion valve.
9. electric automobile air-conditioning system according to claim 7, which is characterized in that the evaporator is pipe type evaporation
Device, band tubular evaparator or laminated evaporator.
10. a kind of control method based on electric automobile air-conditioning system as claimed in claim 7, which is characterized in that including refrigeration
Mode and heating mode:
In refrigeration mode, the refrigerant circuit works, the first regulating valve described in the coolant circuit and the third
Regulating valve is turned off, and second regulating valve, the 4th regulating valve and the 5th regulating valve are opened；Described first is cooling
Liquid circulating pump is opened, and cryogenic liquid flows through the power plant module by the third coolant line and absorbs the power plant module
Heat after become high temperature coolant, high temperature coolant, which passes through the first coolant line again and flows through the radiator, to carry out for the first time
Cooling, passing through the cold metal conductive block later and being cooled down twice becomes cryogenic liquid, and cryogenic liquid passes through the again
Two coolant lines flow to third coolant line；
In heating mode, the refrigerant circuit is closed, the 4th regulating valve and the 5th regulating valve in the coolant circuit
It closes, second coolant recirculation pump is opened, and the ptc heater is opened, and heats the 6th coolant line and described
Coolant liquid in seven coolant lines, obtaining high temperature coolant by second coolant recirculation pump circulation is the power mould
Block heating, so that after the power plant module reaches preset temperature work；Second coolant recirculation pump and the ptc heater
It is turned off, the 4th regulating valve, the 5th regulating valve and the first regulating valve are opened, second regulating valve and the third tune
Section valve is turned off, and first coolant recirculation pump is opened, and high temperature coolant passes through the first coolant line and the 4th coolant liquid
Pipeline flows through heater tank, then flows through the first coolant recirculation pump by the 5th coolant line and become cryogenic liquid,
Cryogenic liquid flows through the power plant module by the third coolant line, becomes after absorbing the heat of the power plant module
High temperature coolant, high temperature coolant passes through the first coolant line again and the 4th coolant line flow to the heater tank.
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| CN110385963B (en) | 2024-04-05 |
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