CN108674124A - A kind of electric vehicle secondary circuit air conditioner heat pump system - Google Patents
A kind of electric vehicle secondary circuit air conditioner heat pump system Download PDFInfo
- Publication number
- CN108674124A CN108674124A CN201810373518.8A CN201810373518A CN108674124A CN 108674124 A CN108674124 A CN 108674124A CN 201810373518 A CN201810373518 A CN 201810373518A CN 108674124 A CN108674124 A CN 108674124A
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- Prior art keywords
- plate
- way valve
- secondary circuit
- refrigerant
- coolant liquid
- Prior art date
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Classifications
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- 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
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The present invention relates to a kind of electric vehicle secondary circuit air conditioner heat pump system, including refrigerant circuit and secondary circuit system, refrigerant circuit includes sequentially connected motor compressor, plate-type condenser, throttling set, plate-type evaporator refrigerant circulation；Secondary circuit system includes cold end coolant circuit and hot junction coolant circuit；Using secondary circuit so that flammable refrigerant circulation will not be in direct contact with crew module, when can be leaked to avoid refrigerant, the degree of danger to passenger is reduced.The control to battery pack temperature can be realized using the form of secondary circuit coolant liquid so that battery can play best performance when working, while coolant liquid can recycle the heat in electronic equipment simultaneously.Present system may be implemented a system and need temperature controlling point to be controlled into trip temperature to multiple, facilitate control and management.
Description
Technical field
The present invention relates to a kind of air-conditioning equipment, more particularly to a kind of electric vehicle secondary circuit air conditioner heat pump system.
Background technology
Consider the discharge of global warming and carbon dioxide, vehicular emission regulation is increasingly stringent, New energy electric vapour
Vehicle also becomes the trend of a certainty.Since greenhouse effects are increasingly severe, in new-energy automotive air-conditioning, novel refrigerant
The replacement of (ODP≤150) has become common focus of attention.The following table 1 is the potential refrigerant comparison of tool.As can be seen that in addition to
Carbon dioxide all has different degrees of combustibility without combustibility, other refrigerants.At this stage, carbon dioxide is due to existing
The problem of high pressure, air-conditioning system can have serious leak in use so that carbon dioxide coolant is in reality
It is restricted when use.And other combustible refrigerants are when in use, it is also desirable to solve leakage problem, it is primarily directed to once
How the passenger of crew module could not be impacted after leaking, table 1 is the comparison with the refrigerant for replacing potentiality
Table.
Table 1
Therefore the refrigerant replacement of potentiality is the trend of present Air-conditioner design.
Invention content
The present invention be directed to the refrigerants of potentiality the problem of refrigeration industry is replaced, it is proposed that a kind of electric vehicle secondary returning
Road air conditioner heat pump system is flammable refrigeration most of when being on the one hand the refrigerant replacement for electric automobile air-conditioning system
Refrigeration system is isolated with crew module using secondary cooling liquid circuit for agent, if combustible refrigerant leaks, refrigerant will not
Into the safety of compartment crisis crew module passenger.On the other hand, since the dynamical system of electric vehicle is by battery power, temperature pair
The performance of battery has prodigious influence, is controlled into trip temperature battery using the form of secondary cooling liquid so that battery works
When can play best performance.
The technical scheme is that：A kind of electric vehicle secondary circuit air conditioner heat pump system, including refrigerant circuit and
Secondary circuit system, refrigerant circuit include sequentially connected motor compressor, plate-type condenser, throttling set, plate evaporation
Device refrigerant circulation；Secondary circuit system includes the first water pump, the second water pump, the first four-way valve, the second four-way valve, third four-way
Valve, indoor heat exchanger, outdoor radiator, battery pack and motor, secondary circuit system include that cold end coolant circuit and hot junction are cold
But liquid circuit；
When secondary circuit air-conditioning heat pump switches refrigeration mode：
Cold end coolant circuit：Plate-type evaporator cold end coolant liquid provides power by the first water pump, by the first four-way
Valve, to the indoor heat exchanger in air-conditioning box, coolant liquid comes out to from indoor heat exchanger in battery pack, to battery into trip temperature control
System, cooled down to motor using the second four-way valve, finally after third four-way valve return to plate-type evaporator coolant liquid into
Mouthful, it exchanges heat with the refrigerant of plate-type evaporator low-temp low-pressure；
Hot junction coolant circuit：Plate-type condenser hot junction coolant liquid provides power by the second water pump, by the first four-way
Valve discharges extra heat to outdoor heat exchanger, then returns to plate-type condenser by the second four-way valve and third four-way valve respectively
The import of coolant liquid exchanges heat with the refrigerant of the high temperature and pressure in plate-type condenser；Secondary circuit air-conditioning heat pump switching system
When heat pattern：
Hot junction coolant circuit：Plate-type condenser hot junction coolant liquid provides power by the second water pump, by the first four-way
Valve, to the indoor heat exchanger in air-conditioning box, coolant liquid comes out in battery pack from indoor heat exchanger and is controlled into trip temperature battery,
Pass through the second four-way valve respectively again and third four-way valve returns to the import of plate-type condenser coolant liquid, with the height in plate-type condenser
The refrigerant of warm high pressure exchanges heat；
Cold end coolant circuit：Plate-type evaporator cold end coolant liquid provides power by the first water pump, by the first four-way
Valve is cooled down using the second four-way valve to motor to motor to heat outside outdoor heat exchanger absorption chamber, finally after the
Three four-way valves return to the import of plate-type evaporator coolant liquid, exchange heat with the refrigerant of plate-type evaporator low-temp low-pressure.
There is PTC auxiliary heating in the indoor heat exchanger upper end, when indoor temperature is too low or dehumidified state, switches air door mould
Formula, PTC auxiliary heating are opened.
The beneficial effects of the present invention are：Electric vehicle secondary circuit air conditioner heat pump system of the present invention, utilizes secondary circuit
So that flammable refrigerant will not be in direct contact with crew module, when can be leaked to avoid refrigerant, reduce to multiplying
The degree of danger of visitor.The control to battery pack temperature can be realized using the form of secondary circuit liquid cooling, while coolant liquid can simultaneously
To recycle the heat in electronic equipment.This secondary circuit air conditioner heat pump system may be implemented a system and need temperature controlling point to multiple
It is controlled into trip temperature, facilitates control and management.
Description of the drawings
Fig. 1 is battery and electronic equipment freezes in temperature range and heating curves figure；
Fig. 2 is the schematic diagram of refrigerating of secondary circuit air conditioner heat pump system of the present invention；
Fig. 3 is the heating schematic diagram of secondary circuit air conditioner heat pump system of the present invention；
Coolant liquid ideograph when Fig. 4 is the pre- thermoelectric perpetual motion machine of secondary circuit air conditioner heat pump system of the present invention；
Fig. 5 is that PTC opens auxiliary heating schematic diagram in secondary circuit air conditioner heat pump system air-conditioning of the present invention.
Specific implementation mode
So that refrigerant circuit is not contacted directly with crew module using secondary circuit system, but passes through coolant liquid pair
Air in air-conditioning box into trip temperature control, it is possible to prevente effectively from entering crew module when refrigerant leaks, if occupant
There is burning things which may cause a fire disaster in cabin, can cause personal safety to avoid the personnel to crew module at this time.
Simultaneously because the dynamical system of electric vehicle is by battery power, however when battery works, to very temperature sensitive,
Temperature is excessively high or too low all can cause deleterious effect in battery performance.The working range of battery is generally：10-30℃.Fig. 1
Indicate that battery and electronic equipment freeze and heat in temperature range.Since the heat production in electronic equipment is more, it is right always to need
Its freeze into trip temperature control, if winter can by this part Waste Heat Recovery and be used, will also improve making for the energy
With rate.
The cooling and warming schematic diagram of secondary circuit air conditioner heat pump system as shown in Figure 2,3, secondary circuit air-conditioning of the invention
Heat pump includes refrigerant circuit and secondary circuit system.
Refrigerant circuit includes：Motor compressor 01, plate-type condenser 02, throttling set 03, plate-type evaporator 04.It is electronic
Compressor 01 absorbs the gaseous refrigerant of low-temp low-pressure from plate-type evaporator 04, and the gaseous state system of high temperature and pressure is compressed into through acting
Cryogen, and it is discharged to plate-type condenser 02, the gaseous refrigerant of high temperature and pressure becomes after plate-type condenser 02 and coolant liquid heat exchange
At the liquid refrigerant of high temperature and pressure, after throttling set 03, plate-type evaporator 04 is flowed through with after coolant liquid heat exchange, is become
At the gaseous refrigerant of low-temp low-pressure, the gaseous refrigerant of low-temp low-pressure enters motor compressor 01.Complete a refrigerant
Cycle.
Secondary circuit system includes：First water pump 05, the second water pump 06, the first four-way valve 07, the second four-way valve 08, third
Four-way valve 09, indoor heat exchanger 11, outdoor radiator 10, battery pack 15 and motor 16, including cold end coolant circuit and hot junction
Coolant circuit.
As shown in Fig. 2, when secondary circuit air-conditioning heat pump switches refrigeration mode, 04 cold end coolant liquid of plate-type evaporator passes through the
One water pump 05 provides power, and by the first four-way valve 07, to the indoor heat exchanger 11 in air-conditioning box, coolant liquid is from indoor heat exchange
Device 11 comes out in battery pack 15, is controlled into trip temperature battery, is cooled down to motor 16 using the second four-way valve 08, most
The import for returning to 04 coolant liquid of plate-type evaporator after third four-way valve 09 afterwards, the refrigeration with 04 low-temp low-pressure of plate-type evaporator
Agent exchanges heat, and cold end coolant liquid completes a complete cycle.
02 hot junction coolant liquid of plate-type condenser provides power by the second water pump 06, by the first four-way valve 07, to outdoor
Heat exchanger 10 discharges extra heat, then returns to plate-type condenser 02 by the second four-way valve 08 and third four-way valve 09 respectively
The refrigerant of high temperature and pressure in the import of coolant liquid, with plate-type condenser 02 exchanges heat, and hot junction coolant liquid completion one is complete
Whole cycle.
As shown in figure 3, when secondary circuit air-conditioning heat pump switches heating mode, 02 hot junction coolant liquid of plate-type condenser passes through the
Two water pumps 06 provide power, and by the first four-way valve 07, to the indoor heat exchanger 11 in air-conditioning box, coolant liquid is from indoor heat exchange
Device 11 comes out in battery pack 15 and is controlled into trip temperature battery, then is returned respectively by the second four-way valve 08 and third four-way valve 09
Refrigerant to the high temperature and pressure in the import of 02 coolant liquid of plate-type condenser, with plate-type condenser 02 exchanges heat, and hot junction is cold
But liquid completes a complete cycle.04 cold end coolant liquid of plate-type evaporator provides power by the first water pump 05, by first
Four-way valve 07 is carried out using the second four-way valve 08 to motor 16 to motor 16 to the heat outside 10 absorption chamber of outdoor heat exchanger
It is cooling, the import of 04 coolant liquid of plate-type evaporator is finally returned to after third four-way valve 09, with 04 low-temp low-pressure of plate-type evaporator
Refrigerant exchange heat, cold end coolant liquid complete one it is complete one cycle.
As shown in figure 4, when secondary circuit air conditioner heat pump system motor just starts, when especially environment temperature is lower
It waits, the working efficiency efficiency of motor is low.The second water pump 06 is first opened, the heat of the hot energy storage of PCM in battery pack is first recycled to electricity
Hot junction coolant liquid is first recycled to by the electronic equipments such as machine, the second four-way valve 08 and third four-way valve 09 switched in coolant circuit
The electronic equipments such as motor 16 first preheat, until when motor stabilizing works, are switched by the second four-way valve 08 and third four-way valve 09
At refrigerating circuit.Ensure that in this way motor in cold-starting also can stability and high efficiency work.
Schematic diagram when secondary circuit air conditioner heat pump system opens PTC auxiliary heating is opened as shown in Figure 5, when PTC is assisted
When heating 12 is opened, switch air door pattern, air door is opened.When temperature sensor 13 detects that indoor environment temperature is very low, heat pump
The efficiency of air-conditioning system is low, and the shortage of heat heating crew module provided at this time, (a) is to open PTC auxiliary heating in heating mode
12.(b) it is that PTC auxiliary heating 12 is opened in dehumidification mode, cold end coolant liquid gets in heat exchanger 11, gets in side
Air dehumidifies, and crew module is heated after again passing by ptc heater heating by the air of indoor heat exchanger 11.
In Fig. 2,3, in battery pack 15, contain Phase Change Material (PCM) energy storage device 17.In environment
When temperature is very low, cell power systems can not start, first using PCM phase-change materials in order to start Force system at low temperature
Thermal energy storage is got up, until when electric vehicle starts, PCM provides thermal energy and is powered system, and temperature keeping battery packet is at low temperature
Startup and operation.
According to the description of embodiment of above, secondary circuit heat pump system using three circuits make refrigerant circuit not with
Crew module is in direct contact, and can have the selection for increasing novel refrigerant.By way of secondary cooling, coolant liquid is defeated by pumping
The form sent not only can carry out comfort level control to crew module, can also be controlled into trip temperature battery pack and electronic equipment, real
An existing system controls multiple temperature controlling points.
Claims (2)
1. a kind of electric vehicle secondary circuit air conditioner heat pump system, including refrigerant circuit and secondary circuit system, refrigerant returns
Road includes sequentially connected motor compressor, plate-type condenser, throttling set, plate-type evaporator refrigerant circulation；Its feature exists
In secondary circuit system is changed including the first water pump, the second water pump, the first four-way valve, the second four-way valve, third four-way valve, interior
Hot device, outdoor radiator, battery pack and motor, secondary circuit system include cold end coolant circuit and hot junction coolant circuit；
When secondary circuit air-conditioning heat pump switches refrigeration mode：
Cold end coolant circuit：Plate-type evaporator cold end coolant liquid provides power by the first water pump and is arrived by the first four-way valve
Indoor heat exchanger in air-conditioning box, coolant liquid come out to from indoor heat exchanger in battery pack, are controlled into trip temperature battery, then pass through
It crosses the second four-way valve to be cooled down to motor, the import of plate-type evaporator coolant liquid is finally returned to after third four-way valve, with plate
The refrigerant of formula evaporator low-temp low-pressure exchanges heat；
Hot junction coolant circuit：Plate-type condenser hot junction coolant liquid provides power by the second water pump and is arrived by the first four-way valve
Outdoor heat exchanger discharges extra heat, then returns to plate-type condenser coolant liquid by the second four-way valve and third four-way valve respectively
Import, exchange heat with the refrigerant of the high temperature and pressure in plate-type condenser；
When secondary circuit air-conditioning heat pump switches heating mode：
Hot junction coolant circuit：Plate-type condenser hot junction coolant liquid provides power by the second water pump and is arrived by the first four-way valve
Indoor heat exchanger in air-conditioning box, coolant liquid comes out in battery pack from indoor heat exchanger and is controlled into trip temperature battery, then divides
Not Jing Guo the second four-way valve and third four-way valve return to the import of plate-type condenser coolant liquid, it is high with the high temperature in plate-type condenser
The refrigerant of pressure exchanges heat；
Cold end coolant circuit：Plate-type evaporator cold end coolant liquid provides power by the first water pump and is arrived by the first four-way valve
Heat outside outdoor heat exchanger absorption chamber is cooled down using the second four-way valve to motor to motor, finally after the three or four
Port valve returns to the import of plate-type evaporator coolant liquid, exchanges heat with the refrigerant of plate-type evaporator low-temp low-pressure.
2. electric vehicle secondary circuit air conditioner heat pump system according to claim 1, which is characterized in that the indoor heat exchanger
There is PTC auxiliary heating in upper end, when indoor temperature is too low or dehumidified state, switches air door pattern, PTC auxiliary heating is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810373518.8A CN108674124B (en) | 2018-04-24 | 2018-04-24 | Secondary loop air-conditioning heat pump system of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810373518.8A CN108674124B (en) | 2018-04-24 | 2018-04-24 | Secondary loop air-conditioning heat pump system of electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108674124A true CN108674124A (en) | 2018-10-19 |
| CN108674124B CN108674124B (en) | 2021-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810373518.8A Expired - Fee Related CN108674124B (en) | 2018-04-24 | 2018-04-24 | Secondary loop air-conditioning heat pump system of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108674124B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109774409A (en) * | 2018-12-26 | 2019-05-21 | 爱驰汽车有限公司 | Automotive thermal tube manages system |
| CN110048185A (en) * | 2019-03-26 | 2019-07-23 | 开沃新能源汽车集团有限公司 | A kind of battery pouring-basket cooling system arragement construction with four-way valve |
| CN110525168A (en) * | 2019-09-05 | 2019-12-03 | 上海理工大学 | New-energy automobile secondary circuit crew module and battery electric control heat management system |
| CN114963613A (en) * | 2022-05-23 | 2022-08-30 | 富奥汽车零部件股份有限公司 | Heat pump system and car |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109774409A (en) * | 2018-12-26 | 2019-05-21 | 爱驰汽车有限公司 | Automotive thermal tube manages system |
| CN110048185A (en) * | 2019-03-26 | 2019-07-23 | 开沃新能源汽车集团有限公司 | A kind of battery pouring-basket cooling system arragement construction with four-way valve |
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| CN110525168B (en) * | 2019-09-05 | 2022-11-01 | 上海理工大学 | New energy automobile secondary circuit passenger cabin and battery motor electric control heat management system |
| CN114963613A (en) * | 2022-05-23 | 2022-08-30 | 富奥汽车零部件股份有限公司 | Heat pump system and car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108674124B (en) | 2021-02-05 |
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