CN105539067A - Vehicle air-conditioner system with battery heat management function - Google Patents
Vehicle air-conditioner system with battery heat management function Download PDFInfo
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- CN105539067A CN105539067A CN201610118164.3A CN201610118164A CN105539067A CN 105539067 A CN105539067 A CN 105539067A CN 201610118164 A CN201610118164 A CN 201610118164A CN 105539067 A CN105539067 A CN 105539067A
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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
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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
- B60H1/00357—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
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00114—Heating or cooling details
- B60H2001/00121—More than one heat exchanger in parallel
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- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
A vehicle air-conditioner system with a battery heat management function comprises a compressor, a condenser, a first expansion valve and an evaporator. The compressor, the condenser, the first expansion valve and the evaporator are connected in the first flowing direction of a refrigerant to form an air-conditioner refrigeration circulation loop. The vehicle air-conditioner system further comprises a plate heat exchanger, a second expansion valve, an air-water heat exchanger, a fan, a water pump, an electric heater and a battery pack built-in heat exchanger. The fan is arranged on the air inlet side of the air-water heat exchanger. The compressor, the condenser, the second expansion valve and the plate heat exchanger are connected in the second flowing direction of the refrigerant to form a battery cooling low-temperature medium circulation loop. The battery pack built-in heat exchanger, the water pump, the plate heat exchanger, the air-water heat exchanger and the electric heater are connected in the water circulation direction to form a battery temperature adjusting medium circulation loop. According to the vehicle air-conditioner system, uniform management of the temperature inside a vehicle and the temperature of a battery is achieved, a battery pack is in the better temperature environment all the time during working, and it is ensured that the good refrigeration effect is achieved inside the vehicle.
Description
Technical field
The invention belongs to vehicle air conditioner, particularly a kind of vehicle heat pump a/c system of charged pool heat management function.
Background technology
In automotive field, pure electric automobile or with electronic hybrid vehicle compared to traditional fuel-engined vehicle, objectionable impurities can not be produced or produce less objectionable impurities, therefore, there is good development prospect.The independent heat management system that battery is lowered the temperature mainly is equipped with concerning pure electronic vehicle or the automobile with electronic hybrid power, due to using battery as propulsion source, at present.At present, the mode of Air-Water heat exchange is generally adopted to lower the temperature to the heat management system that battery is lowered the temperature, the heat exchange efficiency of this kind of cooling method is not high, therefore, when ambient temperature is not too high, the cooling needs of battery can substantially be met, but when ambient temperature is higher, such as under the hot environment in summer, this kind of heat exchange mode just sufficient can not meet the cooling needs of battery, can cause adverse effect like this to the service life of battery.In addition, when the ambient temperature in the external world is lower, when being usually less than 10 DEG C, to the charging and discharging of battery, particularly charge and also can bring adverse influence, when ambient temperature is lower than 0 DEG C, is just difficult to realization and has charged.
At present on vehicle, comprise traditional fuel-engined vehicle, electronlmobil etc., be generally all equipped with a/c system, a/c system has good refrigeration performance, and it is by the circular flow of refrigerant, makes to reach good cooling-down effect in car.For electronlmobil, existing a/c system and to the heat management system that battery is lowered the temperature be two covers independently, mutual incoherent refrigeration system, two overlap independently refrigeration system realizes lowering the temperature to battery and lowering the temperature in car respectively.
Based on above-mentioned present situation, electronlmobil need a kind of adjustment by vehicle interior temperature of design regulate with battery temperature the temperature control system combined, this temperature control system has on the basis of good refrigeration at the existing a/c system of maintenance to vehicle interior temperature, under summer high temperature environment, also good cooling can be realized to battery, in addition, when the temperature of the surroundings is low, also suitably can improve the temperature of battery, make battery have good charging and discharging function.
Summary of the invention
The present invention provides one to realize vehicle interior temperature and battery temperature unified management for solving in known technology the technical matters that exists, power brick is operationally in preferred temperature environment all the time, and the vehicle air conditioner of the charged pool heat management function in car with good refrigeration can be ensured.
The technical scheme that the present invention takes for the technical matters existed in solution known technology is:
Scheme one: the vehicle air conditioner of charged pool heat management function, comprises compressor, condenser, the first expansion valve, evaporator; According to the first flow direction of refrigerant, the outlet of the outlet of compressor and the import of condenser, condenser is connected respectively by pipeline with the import of compressor with the import of evaporator and the outlet of evaporator with the import of the first expansion valve, the outlet of the first expansion valve, form air conditioner refrigerating circulation loop, it is characterized in that: also comprise plate type heat exchanger, the second expansion valve, air-water heat exchanger, fan, water pump, electric heater and power brick built-in heat exchanger, fan is arranged on the air inlet side of air-water heat exchanger; According to the second flow direction of refrigerant, the outlet of compressor is exported and is connected by pipeline successively with the import of compressor with the import of the second expansion valve, the outlet of the second expansion valve with the cryogenic media import of plate type heat exchanger, the cryogenic media of plate type heat exchanger with the outlet of the import of condenser, condenser, forms battery cooling cryogenic media circulation loop; According to the loop direction of water, the outlet of power brick built-in heat exchanger and the import of water pump, water delivery side of pump and the high-temperature medium import of plate type heat exchanger, the high-temperature medium of plate type heat exchanger export the end interface with the import of air-water heat exchanger, the outlet of air-water heat exchanger and electric heater, the other end interface of electric heater is connected by pipeline successively with the import of power brick built-in heat exchanger, forms battery temperature control medium circulation loop; Connecting line on the connecting line between the outlet and the import of the first expansion valve of condenser and between the outlet of evaporator and the import of compressor respectively installs a shutoff valve.
Preferred: on the connecting line between exit of pump and the high-temperature medium import of plate type heat exchanger and the high-temperature medium of plate type heat exchanger export between the import of air-water heat exchanger connecting line on a temperature sensor is respectively installed.
Preferred: to be also circumscribed with expansion tank in the import of water pump outward by pipeline; Connecting line between the other end interface and the import of power brick built-in heat exchanger of electric heater is also provided with blow off valve.
Scheme two: the vehicle air conditioner of charged pool heat management function, is characterized in that: comprise compressor, condenser, the first expansion valve, evaporator; According to the first flow direction of refrigerant, the outlet of the outlet of compressor and the import of condenser, condenser is connected respectively by pipeline with the import of compressor with the import of evaporator and the outlet of evaporator with the import of the first expansion valve, the outlet of the first expansion valve, form air conditioner refrigerating circulation loop, it is characterized in that: also comprise plate type heat exchanger, the second expansion valve, air-water heat exchanger, fan, water pump, electric heater and power brick built-in heat exchanger, fan is arranged on the air inlet side of air-water heat exchanger; According to the second flow direction of refrigerant, the outlet of compressor is exported and is connected by pipeline successively with the import of compressor with the import of the second expansion valve, the outlet of the second expansion valve with the cryogenic media import of plate type heat exchanger, the cryogenic media of plate type heat exchanger with the outlet of the import of condenser, condenser, forms battery cooling cryogenic media circulation loop; According to the first loop direction of water, the outlet of power brick built-in heat exchanger and the import of water pump, water delivery side of pump are exported with the high-temperature medium import of plate type heat exchanger, the high-temperature medium of plate type heat exchanger and are connected by pipeline successively with the import of power brick built-in heat exchanger with an end interface of electric heater, the other end interface of electric heater, form battery temperature control medium main circulation loop; According to the second loop direction of water, the outlet of power brick built-in heat exchanger is connected by pipeline with the import of power brick built-in heat exchanger with an end interface of electric heater, the other end interface of electric heater with the import of air-water heat exchanger, the outlet of air-water heat exchanger successively with the import of water pump, water delivery side of pump, forms the auxiliary circulation loop of battery temperature control medium; Wherein, on the connecting line on the connecting line on the connecting line between the outlet and the import of the first expansion valve of condenser, between the outlet of evaporator and the import of compressor, between water delivery side of pump and the high-temperature medium import of plate type heat exchanger, the high-temperature medium of plate type heat exchanger export between an end interface of electric heater connecting line on, connecting line on connecting line between water delivery side of pump and the import of air-water heat exchanger and between the outlet of air-water heat exchanger and an end interface of electric heater is provided with a shutoff valve separately.
Preferred: on the connecting line between exit of pump and the high-temperature medium import of plate type heat exchanger and the high-temperature medium of plate type heat exchanger export between an end interface of electric heater connecting line on a temperature sensor is respectively installed.
Preferred: to be also circumscribed with expansion tank in the import of water pump by pipeline; Connecting line between the other end interface and the import of power brick built-in heat exchanger of electric heater is also provided with blow off valve.
The advantage that the present invention has and good effect are:
The vehicle air conditioner of this charged pool heat management function, by to the a/c system of lowering the temperature in car with vehicle battery bag is carried out to temperature controlled system synthesis and becomes an overall system control, such one side achieves the function of vehicle air conditioner, on the other hand when ambient temperature is higher, general environment temperature is more than 23 DEG C, vehicle air conditioner can be started, pass through plate type heat exchanger, realize the effective temperature-reducing to battery, and ambient temperature is 15 DEG C ~ 23 DEG C time, heat exchange is carried out by adopting air-water heat exchanger, cooling is realized to battery, like this, the environmentally difference of temperature, adopt different cooling methods, fully meet the cooling needs of battery on the one hand, achieve the rational and efficient use of the energy on the other hand.When ambient temperature is lower than 10 DEG C, start electric heater, battery is carried out to the intensification of appropriateness, this ensures that there the charging and discharging function of battery.To sum up, by this vehicle air conditioner, ensure that power brick is operationally in preferably in temperature environment all the time, thus ensure that the service life of power brick.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the present invention;
Fig. 2 is the structural representation of the second embodiment of the present invention.
In figure: 1, compressor; 2, condenser; 3, the first expansion valve; 4, evaporator; 5, plate type heat exchanger; 6, the second expansion valve; 7, air-water heat exchanger; 8, fan; 9, water pump; 10, electric heater; 11, power brick built-in heat exchanger; 12, shutoff valve; 13, temperature sensor; 14, expansion tank; 15, blow off valve.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Embodiment 1:
Refer to Fig. 1, the vehicle air conditioner of charged pool heat management function, comprise compressor 1, condenser 2, first expansion valve 3, evaporator 4, also comprise plate type heat exchanger 5, second expansion valve 6, air-water heat exchanger 7, fan 8, water pump 9, electric heater 10 and power brick built-in heat exchanger 11, fan is arranged on the air inlet side of air-water heat exchanger, and above-mentioned electric heater is connected with power brick by electric pressure converter, like this, when needs electro heat, can from the direct power taking of power brick.According to the first flow direction of refrigerant, the outlet of the outlet of compressor and the import of condenser, condenser is connected respectively by pipeline with the import of compressor with the import of evaporator and the outlet of evaporator with the import of the first expansion valve, the outlet of the first expansion valve, form air conditioner refrigerating circulation loop, air conditioner refrigerating circulation loop is used for lowering the temperature to vehicle interior temperature.According to the second flow direction of refrigerant, the outlet of compressor is exported and is connected by pipeline successively with the import of compressor with the import of the second expansion valve, the outlet of the second expansion valve with the cryogenic media import of plate type heat exchanger, the cryogenic media of plate type heat exchanger with the outlet of the import of condenser, condenser, forms battery cooling cryogenic media circulation loop.According to the loop direction of water, the outlet of power brick built-in heat exchanger and the import of water pump, water delivery side of pump and the high-temperature medium import of plate type heat exchanger, the high-temperature medium of plate type heat exchanger export the end interface with the import of air-water heat exchanger, the outlet of air-water heat exchanger and electric heater, the other end interface of electric heater is connected by pipeline successively with the import of power brick built-in heat exchanger, forms battery temperature control medium circulation loop.Connecting line on the connecting line between the outlet and the import of the first expansion valve of condenser and between the outlet of evaporator and the import of compressor is respectively provided with a shutoff valve 12.
In said structure, on the connecting line between exit of pump and the high-temperature medium import of plate type heat exchanger and the high-temperature medium of plate type heat exchanger export between the import of air-water heat exchanger connecting line on a temperature sensor 13 is respectively installed.Like this, in use, by the detected temperatures value of two temperatures sensor, the heat exchange property of plate type heat exchanger can be judged, when heat exchange property is lower than setting value, can repair or replace plate type heat exchanger in time.
In said structure, be also circumscribed with expansion tank 14 in the import of water pump outward by pipeline; Connecting line between the other end interface and the import of power brick built-in heat exchanger of electric heater is also provided with blow off valve 15.Like this, when battery temperature control medium circulation loop carries out periodical duty, by blow off valve, the gas in circulatory mediator is discharged, store circulatory mediator unnecessary in circulation loop by expansion tank, thus ensure that the operation that circulation loop is stable.
The vehicle air conditioner of the charged pool heat management function described in the present embodiment, the environmentally difference of temperature, adopts following several mode of operation respectively:
1, ambient temperature is greater than 28 DEG C
Above-mentioned air conditioner refrigerating circulation loop, battery cooling cryogenic media circulation loop and battery temperature control medium circulation loop all normally run, in this operating mode, compressor is in high-speed cruising state, under shutoff valve on connecting line between the outlet of condenser and the import of the first expansion valve and the shutoff valve between the outlet of evaporator and the import of compressor on connecting line are all in opening, but electric heater and be all in no power state with the matching used fan 8 of air-water heat exchanger.This kind of mode of operation carries out cooling process by the bypassing circulation of refrigerant to temperature in vehicle interior temperature and power brick, make in car, to reach comfortable temperature by bus, and the good refrigeration performance of a/c system can be utilized, make in power brick, to realize fast cooling in time, the temperature in power brick is controlled at 25 DEG C ~ 30 DEG C.
2, ambient temperature 23 DEG C ~ 28 DEG C
Battery cooling cryogenic media circulation loop and battery temperature control medium circulation loop all normally run, but air conditioner refrigerating circulation loop is in not running state.Under this kind of mode of operation, compressor is in low-speed run state, and under the shutoff valve between the outlet of shutoff valve on connecting line between the import of the outlet of condenser and the first expansion valve and evaporator and the import of compressor on connecting line is all in closed condition, electric heater and be all in no power state with the matching used fan 8 of air-water heat exchanger.This kind of mode of operation is by the operation of refrigerant at battery cooling cryogenic media circulation loop, realizes cooling, control the temperature in power brick at 25 DEG C ~ 30 DEG C to power brick.
3, ambient temperature 15 DEG C ~ 23 DEG C
Battery temperature control medium circulation loop normally runs, but air conditioner refrigerating circulation loop and battery cooling cryogenic media circulation loop are all in not running state.Under this kind of mode of operation, compressor is out of service, the on off state of the shutoff valve on the shutoff valve on the connecting line between the outlet of condenser and the import of the first expansion valve and the connecting line between the outlet of evaporator and the import of compressor is unrestricted, electric heater is in no power state, but is in "on" position with the matching used fan 8 of air-water heat exchanger.This kind of mode of operation is by the operation of water at battery temperature control medium circulation loop, realizes cooling, control the temperature in power brick at 25 DEG C ~ 35 DEG C through Air-Water heat exchange to battery.
4, ambient temperature is lower than 10 DEG C
Battery temperature control medium circulation loop normally runs, but air conditioner refrigerating circulation loop and battery cooling cryogenic media circulation loop are all in not running state.Under this kind of mode of operation, compressor is out of service, the on off state of the shutoff valve on the shutoff valve on the connecting line between the outlet of condenser and the import of the first expansion valve and the connecting line between the outlet of evaporator and the import of compressor is unrestricted, and be in no power state with the matching used fan 8 of air-water heat exchanger, and electric heater is in "on" position.This kind of mode of operation is heated the water run in battery temperature control medium circulation loop by electric heater, thus the lifting realized temperature in power brick, temperature in power brick is controlled at 20 DEG C ~ 25 DEG C, so just ensure the normal charging and discharging of power brick.
Embodiment 2:
Refer to Fig. 2, the vehicle air conditioner of charged pool heat management function, comprise compressor 1, condenser 2, first expansion valve 3, evaporator 4, also comprise plate type heat exchanger 5, second expansion valve 6, air-water heat exchanger 7, fan 8, water pump 9, electric heater 10 and power brick built-in heat exchanger 11, fan is arranged on the air inlet side of air-water heat exchanger.According to the first flow direction of refrigerant, the outlet of the outlet of compressor and the import of condenser, condenser is connected respectively by pipeline with the import of compressor with the import of evaporator and the outlet of evaporator with the import of the first expansion valve, the outlet of the first expansion valve, form air conditioner refrigerating circulation loop, air conditioner refrigerating circulation loop is used for lowering the temperature to vehicle interior temperature.According to the second flow direction of refrigerant, the outlet of compressor is exported and is connected by pipeline successively with the import of compressor with the import of the second expansion valve, the outlet of the second expansion valve with the cryogenic media import of plate type heat exchanger, the cryogenic media of plate type heat exchanger with the outlet of the import of condenser, condenser, forms battery cooling cryogenic media circulation loop.According to the first loop direction of water, the outlet of power brick built-in heat exchanger and the import of water pump, water delivery side of pump are exported with the high-temperature medium import of plate type heat exchanger, the high-temperature medium of plate type heat exchanger and are connected by pipeline successively with the import of power brick built-in heat exchanger with an end interface of electric heater, the other end interface of electric heater, form battery temperature control medium main circulation loop.According to the second loop direction of water, the outlet of power brick built-in heat exchanger is connected by pipeline with the import of power brick built-in heat exchanger with an end interface of electric heater, the other end interface of electric heater with the import of air-water heat exchanger, the outlet of air-water heat exchanger successively with the import of water pump, water delivery side of pump, forms the auxiliary circulation loop of battery temperature control medium.Wherein, on the connecting line on the connecting line on the connecting line between the outlet and the import of the first expansion valve of condenser, between the outlet of evaporator and the import of compressor, between water delivery side of pump and the high-temperature medium import of plate type heat exchanger, the high-temperature medium of plate type heat exchanger export between an end interface of electric heater connecting line on, connecting line on connecting line between water delivery side of pump and the import of air-water heat exchanger and between the outlet of air-water heat exchanger and an end interface of electric heater is provided with a shutoff valve 12 separately.
In said structure, on the connecting line between exit of pump and the high-temperature medium import of plate type heat exchanger and the high-temperature medium of plate type heat exchanger export between an end interface of electric heater connecting line on a temperature sensor 13 is respectively installed.Like this, in use, by the detected temperatures value of two temperatures sensor, the heat exchange property of plate type heat exchanger can be judged, when heat exchange property is lower than setting value, can repair or replace plate type heat exchanger in time.
In said structure, be also circumscribed with expansion tank 14 in the import of water pump by pipeline; Connecting line between the other end interface and the import of power brick built-in heat exchanger of electric heater is also provided with blow off valve 15.Like this, when battery temperature control medium circulation loop carries out periodical duty, by blow off valve, the gas in circulatory mediator is discharged, store circulatory mediator unnecessary in circulation loop by expansion tank, thus ensure that the operation that circulation loop is stable.
The vehicle air conditioner of the charged pool heat management function described in the present embodiment, the environmentally difference of temperature, adopts following several mode of operation respectively:
1, ambient temperature is greater than 28 DEG C
Above-mentioned air conditioner refrigerating circulation loop, battery cooling cryogenic media circulation loop and battery temperature control medium main circulation loop all normally run, and the auxiliary circulation loop of battery temperature control medium is in not running state.In this operating mode, compressor is in high-speed cruising state, and the shutoff valve on connecting line between the import of the outlet of condenser and the first expansion valve, shutoff valve on connecting line between the outlet of evaporator and the import of compressor, shutoff valve on connecting line between the high-temperature medium import of water delivery side of pump and plate type heat exchanger, shutoff valve on connecting line between the high-temperature medium outlet of plate type heat exchanger and an end interface of electric heater is all in opening, and the shutoff valve on connecting line between the outlet of shutoff valve on connecting line between water delivery side of pump and the import of air-water heat exchanger and air-water heat exchanger and an end interface of electric heater is all in closed condition, simultaneously electric heater and be all in no power state with the matching used fan 8 of air-water heat exchanger.This kind of mode of operation carries out cooling process by the bypassing circulation of refrigerant to temperature in vehicle interior temperature and power brick, make in car, to reach comfortable temperature by bus, and the good refrigeration performance of a/c system can be utilized, make in power brick, to realize fast cooling in time, the temperature in power brick is controlled at 25 DEG C ~ 30 DEG C.
2, ambient temperature 23 DEG C ~ 28 DEG C
Battery cooling cryogenic media circulation loop and battery temperature control medium main circulation loop all normally run, but air conditioner refrigerating circulation loop and the auxiliary circulation loop of battery temperature control medium are all in not running state.Under this kind of mode of operation, compressor is in low-speed run state, shutoff valve on shutoff valve on shutoff valve on the inlet connecting branch road of the shutoff valve on the connecting line between the outlet of condenser and the import of the first expansion valve, the outlet of evaporator and compressor, the connecting line between water delivery side of pump and the import of air-water heat exchanger, connecting line between the outlet of air-water heat exchanger and an end interface of electric heater is all in closed condition, in addition, electric heater and be all in no power state with the matching used fan 8 of air-water heat exchanger.This kind of mode of operation is by the operation of refrigerant at battery cooling cryogenic media circulation loop, realizes cooling, control the temperature in power brick at 25 DEG C ~ 30 DEG C in power brick.
3, ambient temperature 15 DEG C ~ 23 DEG C
The auxiliary circulation loop of battery temperature control medium normally runs, but air conditioner refrigerating circulation loop, battery cooling cryogenic media circulation loop and battery temperature control medium main circulation loop are all in not running state.Under this kind of mode of operation, compressor is out of service, shutoff valve on shutoff valve on connecting line between water delivery side of pump and the import of air-water heat exchanger and the connecting line between the outlet of air-water heat exchanger and an end interface of electric heater is all in opening, and the shutoff valve on the high-temperature medium of shutoff valve on connecting line between the high-temperature medium import of water delivery side of pump and plate type heat exchanger and plate type heat exchanger exports between an end interface of electric heater connecting line is all in closed condition, and the on off state of shutoff valve on connecting line between the outlet of shutoff valve on connecting line between the import of the outlet of condenser and the first expansion valve and evaporator and the import of compressor is unrestricted, in addition, electric heater is in no power state, but be in "on" position with the matching used fan 8 of air-water heat exchanger.This kind of mode of operation is by the operation of water in the auxiliary circulation loop of battery temperature control medium, realizes cooling, control the temperature in power brick at 25 DEG C ~ 35 DEG C through Air-Water heat exchange in power brick
4, ambient temperature is lower than 10 DEG C
Battery temperature control medium main circulation loop and the auxiliary circulation loop alternative of battery temperature control medium are in normal operating condition, and another battery temperature control medium circulation loop, air conditioner refrigerating circulation loop and battery of correspondence cooling cryogenic media circulation loop is all in not running state.Concrete, when elected battery temperature control medium main circulation loop is operating loop, the shutoff valve that shutoff valve on connecting line between the high-temperature medium import of water delivery side of pump and plate type heat exchanger, the high-temperature medium of plate type heat exchanger export on the connecting line between an end interface of electric heater is all in opening, and the shutoff valve on the shutoff valve on the connecting line simultaneously between water delivery side of pump and the import of air-water heat exchanger and the connecting line between the outlet of air-water heat exchanger and an end interface of electric heater is all in closed condition.And elected battery temperature control medium auxiliary circulation loop is when being operating loop, shutoff valve on shutoff valve on connecting line between water delivery side of pump and the import of air-water heat exchanger and the connecting line between the outlet of air-water heat exchanger and an end interface of electric heater is all in opening, meanwhile, the shutoff valve that the shutoff valve on the connecting line between the high-temperature medium import of water delivery side of pump and plate type heat exchanger and the high-temperature medium of plate type heat exchanger export on the connecting line between an end interface of electric heater is all in closed condition.Under this kind of mode of operation, compressor is out of service, no power state is in the matching used fan 8 of air-water heat exchanger, and electric heater is in "on" position, in addition, the on off state of the shutoff valve on the shutoff valve on the connecting line between the outlet of condenser and the import of the first expansion valve, the outlet of evaporator and the inlet connecting branch road of compressor is unrestricted.This kind of mode of operation is heated by the water of electric heater to the operation at battery temperature control medium circulation loop, thus the lifting realized temperature in power brick, temperature in power brick is controlled at 20 DEG C ~ 25 DEG C, so just ensure the normal charging and discharging of power brick.
To sum up, the vehicle air conditioner of this charged pool heat management function, existing vehicle air conditioner and battery thermal management system are combined into an overall system control cleverly, like this, can the difference of environmentally temperature, switch different circulation loops, in high temperature environments, effective temperature-reducing is realized in power brick, and under the ambient temperature of telling somebody what one's real intentions are, effectively can promote again the temperature of power brick, like this, all the time make to keep optimum temperature in power brick, thus ensure that the service life of power brick and normal charging and discharging ability.
Claims (6)
1. the vehicle air conditioner of charged pool heat management function, comprises compressor, condenser, the first expansion valve, evaporator; According to the first flow direction of refrigerant, the outlet of the outlet of compressor and the import of condenser, condenser is connected respectively by pipeline with the import of compressor with the import of evaporator and the outlet of evaporator with the import of the first expansion valve, the outlet of the first expansion valve, form air conditioner refrigerating circulation loop, it is characterized in that: also comprise plate type heat exchanger, the second expansion valve, air-water heat exchanger, fan, water pump, electric heater and power brick built-in heat exchanger, fan is arranged on the air inlet side of air-water heat exchanger; According to the second flow direction of refrigerant, the outlet of compressor is exported and is connected by pipeline successively with the import of compressor with the import of the second expansion valve, the outlet of the second expansion valve with the cryogenic media import of plate type heat exchanger, the cryogenic media of plate type heat exchanger with the outlet of the import of condenser, condenser, forms battery cooling cryogenic media circulation loop; According to the loop direction of water, the outlet of power brick built-in heat exchanger and the import of water pump, water delivery side of pump and the high-temperature medium import of plate type heat exchanger, the high-temperature medium of plate type heat exchanger export the end interface with the import of air-water heat exchanger, the outlet of air-water heat exchanger and electric heater, the other end interface of electric heater is connected by pipeline successively with the import of power brick built-in heat exchanger, forms battery temperature control medium circulation loop; Connecting line on the connecting line between the outlet and the import of the first expansion valve of condenser and between the outlet of evaporator and the import of compressor is respectively provided with a shutoff valve.
2. the vehicle air conditioner of charged pool heat management function according to claim 1, is characterized in that: on the connecting line between exit of pump and the high-temperature medium import of plate type heat exchanger and the high-temperature medium of plate type heat exchanger export between the import of air-water heat exchanger connecting line on a temperature sensor is respectively installed.
3. the vehicle air conditioner of charged pool heat management function according to claim 1, is characterized in that: be also circumscribed with expansion tank in the import of water pump outward by pipeline; Connecting line between the other end interface and the import of power brick built-in heat exchanger of electric heater is also provided with blow off valve.
4. the vehicle air conditioner of charged pool heat management function, is characterized in that: comprise compressor, condenser, the first expansion valve, evaporator; According to the first flow direction of refrigerant, the outlet of the outlet of compressor and the import of condenser, condenser is connected respectively by pipeline with the import of compressor with the import of evaporator and the outlet of evaporator with the import of the first expansion valve, the outlet of the first expansion valve, form air conditioner refrigerating circulation loop, it is characterized in that: also comprise plate type heat exchanger, the second expansion valve, air-water heat exchanger, fan, water pump, electric heater and power brick built-in heat exchanger, fan is arranged on the air inlet side of air-water heat exchanger; According to the second flow direction of refrigerant, the outlet of compressor is exported and is connected by pipeline successively with the import of compressor with the import of the second expansion valve, the outlet of the second expansion valve with the cryogenic media import of plate type heat exchanger, the cryogenic media of plate type heat exchanger with the outlet of the import of condenser, condenser, forms battery cooling cryogenic media circulation loop; According to the first loop direction of water, the outlet of power brick built-in heat exchanger and the import of water pump, water delivery side of pump are exported with the high-temperature medium import of plate type heat exchanger, the high-temperature medium of plate type heat exchanger and are connected by pipeline successively with the import of power brick built-in heat exchanger with an end interface of electric heater, the other end interface of electric heater, form battery temperature control medium main circulation loop; According to the second loop direction of water, the outlet of power brick built-in heat exchanger is connected by pipeline with the import of power brick built-in heat exchanger with an end interface of electric heater, the other end interface of electric heater with the import of air-water heat exchanger, the outlet of air-water heat exchanger successively with the import of water pump, water delivery side of pump, forms the auxiliary circulation loop of battery temperature control medium; Wherein, on the connecting line on the connecting line on the connecting line between the outlet and the import of the first expansion valve of condenser, between the outlet of evaporator and the import of compressor, between water delivery side of pump and the high-temperature medium import of plate type heat exchanger, the high-temperature medium of plate type heat exchanger export between an end interface of electric heater connecting line on, connecting line on connecting line between water delivery side of pump and the import of air-water heat exchanger and between the outlet of air-water heat exchanger and an end interface of electric heater is provided with a shutoff valve separately.
5. the vehicle air conditioner of charged pool heat management function according to claim 4, is characterized in that: on the connecting line between exit of pump and the high-temperature medium import of plate type heat exchanger and the high-temperature medium of plate type heat exchanger export between an end interface of electric heater connecting line on a temperature sensor is respectively installed.
6. the vehicle air conditioner of charged pool heat management function according to claim 4, is characterized in that: be also circumscribed with expansion tank in the import of water pump by pipeline; Connecting line between the other end interface and the import of power brick built-in heat exchanger of electric heater is also provided with blow off valve.
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| CN201610118164.3A CN105539067A (en) | 2016-03-02 | 2016-03-02 | Vehicle air-conditioner system with battery heat management function |
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| CN201610118164.3A CN105539067A (en) | 2016-03-02 | 2016-03-02 | Vehicle air-conditioner system with battery heat management function |
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| CN113682201A (en) * | 2021-09-30 | 2021-11-23 | 珠海格力电器股份有限公司 | Automobile and battery temperature control method and device thereof, storage medium and processor |
| WO2023115274A1 (en) * | 2021-12-20 | 2023-06-29 | 宁德时代新能源科技股份有限公司 | Thermal management system, thermal management method and electric device |
| CN115020868A (en) * | 2022-08-09 | 2022-09-06 | 中国第一汽车股份有限公司 | Heat management device, power battery assembly and control method thereof |
| CN118386785A (en) * | 2024-06-25 | 2024-07-26 | 比亚迪股份有限公司 | Heat pump system, vehicle-mounted air conditioner, vehicle, control method and control device |
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Application publication date: 20160504 |