CN209466956U - Vehicle heat management system and vehicle - Google Patents
Vehicle heat management system and vehicle Download PDFInfo
- Publication number
- CN209466956U CN209466956U CN201821996109.5U CN201821996109U CN209466956U CN 209466956 U CN209466956 U CN 209466956U CN 201821996109 U CN201821996109 U CN 201821996109U CN 209466956 U CN209466956 U CN 209466956U
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- Prior art keywords
- flow path
- port
- way valve
- battery
- heat management
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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
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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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00885—Controlling the flow of heating or cooling liquid, e.g. valves or pumps
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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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
- B60H1/32281—Cooling devices using compression characterised by refrigerant circuit configurations comprising a single secondary circuit, e.g. at evaporator or condenser side
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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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/323—Cooling devices using compression characterised by comprising auxiliary or multiple systems, e.g. plurality of evaporators, or by involving auxiliary cooling devices
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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
- B60H2001/00307—Component temperature regulation using a liquid flow
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
This disclosure relates to a kind of vehicle heat management system and vehicle, the vehicle heat management system includes battery coolant liquid flow path, heating flow path, heat exchanger, four-way valve, the heat exchanger is arranged in air-conditioning system and the battery coolant liquid flow path simultaneously, power battery is provided on the battery coolant liquid flow path, first water pump, the second water pump is provided on the heating flow path, first ptc heater and heater cores for crew module's heating, one end of the battery coolant liquid flow path is connected with the first port of the four-way valve, the other end is connected with the second port of the four-way valve, one end of the heating flow path is connected with the third port of the four-way valve, the other end is connected with the 4th port of the four-way valve.The vehicle heat management system that the disclosure provides by four-way valve being turned on or off battery coolant liquid flow path and heating flow path, so that heater cores and power battery is connected in a loop, heat utilization ratio is high, and heating effect is preferable.
Description
Technical field
This disclosure relates to vehicle heat management system field, and in particular, to a kind of vehicle heat management system and vehicle.
Background technique
In thermal management system of whole, including air-conditioning system, battery thermal management system and electricity drive the system greatly of heat management system three
System.In existing battery thermal management system, if desired power battery is heated, then needs to add electricity in battery thermal management system
Pond heater, makes increased costs.When battery thermal management system and air-conditioning system share a heater, power battery and air-conditioning
Heater cores be usually arranged in parallel so that directly flowing back to heater from the coolant liquid that power battery and heater cores flow out, make
Low at heat utilization ratio, heating effect is poor.
Utility model content
Purpose of this disclosure is to provide a kind of vehicle heat management system and vehicle, the vehicle heat management system heat utilization ratios
Height, heating effect are preferable.
To achieve the goals above, the disclosure provides a kind of vehicle heat management system, which is characterized in that cooling including battery
Liquid stream road, heating flow path, heat exchanger, four-way valve, the heat exchanger are arranged simultaneously in air-conditioning system and the cooling liquid stream of the battery
Lu Zhong is provided with power battery, the first water pump on the battery coolant liquid flow path, is provided with the second water on the heating flow path
Pump, the first ptc heater and the heater cores for crew module's heating, one end of the battery coolant liquid flow path and the four-way
The first port of valve is connected, and the other end is connected with the second port of the four-way valve, one end of the heating flow path and described four
The third port of port valve is connected, and the other end is connected with the 4th port of the four-way valve.
Optionally, the third port of the four-way valve is connected with the coolant inlet of second water pump, second water
The cooling liquid outlet of pump is connected with the coolant inlet of first ptc heater, and the coolant liquid of first ptc heater goes out
Mouth is connected with the coolant inlet of the heater cores, the 4th end of the cooling liquid outlet of the heater cores and the four-way valve
Mouth is connected.
Optionally, the cooling liquid outlet of first water pump is connected with the coolant inlet of the heat exchanger, the heat exchange
The cooling liquid outlet of device is connected with the first port of the four-way valve, the second port of the four-way valve and the power battery
Coolant inlet is connected, and the cooling liquid outlet of the power battery is connected with the coolant inlet of first water pump.
Optionally, the air-conditioning system includes refrigerant main line, the first refrigerant branch and the second refrigerant branch, and described first is cold
Matchmaker's branch and the second refrigerant branch circuit parallel connection are provided with compressor and condenser, first refrigerant on the refrigerant main line
Branch road is provided with the first expansion valve and evaporator, and the second refrigerant branch road is provided with the second expansion valve and the heat exchange
Device.
Optionally, first expansion valve is heating power expansion valve, and the first refrigerant branch road is additionally provided with solenoid valve, institute
Stating the second expansion valve is electric expansion valve.
Optionally, the vehicle heat management system further includes that electricity drives heat management circuit, and the electricity, which drives in heat management circuit, to be set
It is equipped with third water pump, automatically controlled, motor and radiator.
Optionally, the cooling liquid outlet of the third water pump is connected with the automatically controlled coolant inlet, described automatically controlled
Cooling liquid outlet is connected with the coolant inlet of the motor, the coolant liquid of the cooling liquid outlet of the motor and the radiator
Entrance is connected, and the cooling liquid outlet of the radiator is connected with the coolant inlet of the third water pump.
Another aspect of the present disclosure also provides a kind of vehicle, and the vehicle includes vehicle heat management system as described above.
Through the above technical solutions, the vehicle heat management system heat utilization ratio that the disclosure provides is high, heating effect is preferable.
Specifically, being switched on or off for battery coolant liquid flow path and heating flow path may be implemented by four-way valve；When closed, warm wind
In a loop, the first ptc heater being arranged on heating flow path makes heater cores heat up for core and power battery series connection
Afterwards, power battery can also be flowed directly into from the coolant liquid of heater cores outflow coolant liquid to heat to power battery, avoid wasting
The heat that first ptc heater generates improves heat so that the heat that the first ptc heater generates can make full use of
Utilization rate, to improve heating efficiency；Upon opening, when air-conditioning system is heated to power battery, coolant liquid is only cooling in battery
Liquid stream circulates in road, and air-conditioning system needs not move through heating stream by the cooling capacity in heat exchanger transfer to battery coolant liquid flow path
Road can be avoided the cooling capacity that heating flow path occupies air-conditioning system, to improve the cooling effect of battery.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of vehicle heat management system according to an embodiment of the present disclosure；
Fig. 2 is the structural schematic diagram of vehicle heat management system according to another embodiment of the present disclosure.
Description of symbols
1 motor, 2 radiator
3 gas exhaust and liquid supplementation device, 31 first tee tube
32 second tee tube, 33 third tee tube
The first port of 4 four-way valve, 41 four-way valve
The third port of 43 four-way valve of second port of 42 four-way valves
5 heat exchanger of the 4th port of 44 four-way valves
6 power battery, 7 first water pump
8 second water pump, 9 electric machine controller
10 DC-DC converter, 11 compressor
12 condenser, 13 second expansion valve
14 solenoid valve, 15 first expansion valve
16 evaporator, 17 air blower
19 first ptc heater, 20 third water pump
21 second ptc heater, 22 heater cores
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as " refrigerant inlet, coolant inlet,
Refrigerant exit and cooling liquid outlet " is usually for the flow direction of the fluids such as such as refrigerant or coolant liquid, specifically
Ground, the opening that fluid flows into the components into the vehicles heat management system such as such as condenser, power battery, evaporator are
" refrigerant inlet and coolant inlet ", fluid is from zero in the vehicles heat management system such as such as condenser, power battery, evaporator
The opening flowed out in component is " refrigerant exit and cooling liquid outlet ".
Shown in referring to Fig.1, the vehicle heat management system that embodiment of the disclosure provides may include that air-conditioning system, battery are cold
But liquid stream road, heating flow path.In addition, the vehicle heat management system can also include heat exchanger 5, four-way valve 4, heat exchanger 5 is simultaneously
It is arranged in air-conditioning system and battery coolant liquid flow path, air-conditioning system and battery coolant liquid flow path is allow to carry out heat exchange,
Realize cooling of the air-conditioning system to battery coolant liquid flow path, four-way valve 4 is real for connecting battery coolant liquid flow path and heating flow path
Existing battery coolant liquid flow path and heating flow path carry out heat exchange.Wherein, above-mentioned heat exchanger is provided on battery coolant liquid flow path
5, power battery 6, the first water pump 7 are provided with the second water pump 8, the first ptc heater 19 on heating flow path and adopt for crew module
Warm heater cores 22, one end of battery coolant liquid flow path are connected with the first port 41 of four-way valve 4, the other end and four-way valve 4
Second port 42 be connected, one end of heating flow path is connected with the third port 43 of four-way valve 4, the of the other end and four-way valve 4
Four ports 44 are connected.Optionally, air blower 17 is also provided on heating flow path, it is attached that air blower 17 is arranged in heater cores 22
Closely, for the heat on heater cores 22 to be blown into crew module.
In the disclosure, being switched on or off for battery coolant liquid flow path and heating flow path may be implemented by four-way valve 4.
Specifically, when needing turn-on battery coolant liquid flow path and heating flow path, first port 41 and the third end of four-way valve 4 be can control
Mouth 43 is connected, and second port 42 and the 4th port 44 are connected, so that battery coolant liquid flow path and heating flow path connect to form one
Circuit, so that coolant liquid can circulate in battery coolant liquid flow path and heating flow path.At this point, heater cores 22 and power
Battery 6 is connected in a loop, after being arranged in the first ptc heater 19 on heating flow path to coolant liquid heating, by cold
But liquid, which can transfer heat to heater cores 22, makes heater cores 22 heat up, to pass through air blower 17 for heater cores 22
Heat is blown into crew module and heats to crew module, and the coolant liquid for flowing out coolant liquid from heater cores 22 also has certain waste heat,
The coolant liquid can flow directly into power battery 6 and heat to power battery 6, the heat for avoiding the first ptc heater 19 of waste from generating
Amount improves the utilization rate of heat, to improve heating so that the heat that the first ptc heater 19 generates can make full use of
Efficiency.
Further, when needing individually to carry out heat management to power battery 6 or heater cores 22, it is cooling that battery can be disconnected
Liquid stream road and heating flow path specifically can control the first port 41 of four-way valve 4 and second port 42 to be connected, third port 43
It is connected with the 4th port 44, makes battery coolant liquid flow path and mutually independent two circuits of each self-forming of heating flow path, exist at this time
In battery coolant liquid flow path, air-conditioning system can be used and give the cooling of power battery 6, in heating flow path, the first PTC can be used to add
Hot device 19 and heater cores 22 heat to crew module.In this way, according to actual needs, power battery 6 and warm wind core can be carried out respectively
The heat management of body 22 increases the diversity of the operating mode selection of vehicle heat management system.In addition, using air-conditioning system pair
When power battery 6 is cooled down, battery coolant liquid flow path and heating flow path are disconnected, so that coolant liquid is only in battery coolant liquid flow path
In circulate, the cooling capacity that air-conditioning system is transmitted on battery coolant liquid flow path by heat exchanger 5 needs not move through heating flow path, energy
Heating flow path is enough avoided to occupy the cooling capacity of air-conditioning system, to improve the cooling effect of power battery 6.
As the optional arrangement of the disclosure, as shown in Figure 1, in heating flow path, the third port 43 of four-way valve 4
It is connected with the coolant inlet of the second water pump 8, the cooling liquid outlet of the second water pump 8 and the coolant liquid of the first ptc heater 19 enter
Mouthful be connected, the cooling liquid outlet of the first ptc heater 19 is connected with the coolant inlet of heater cores 22, heater cores 22 it is cold
But liquid outlet is connected with the 4th port 44 of four-way valve 4.In this way, by being arranged the first ptc heater 19 in heater cores 22
Upstream, when using the first ptc heater 19 heating heater cores 22 when, from the cooling liquid outlet stream of the first ptc heater 19
And then coolant liquid out can heat heater cores 22, be conducive to promote the heating effect to heater cores 22.
Further, as shown in Figure 1, in battery coolant liquid flow path, the cooling liquid outlet and heat exchanger 5 of the first water pump 7
Coolant inlet be connected, the cooling liquid outlet of heat exchanger 5 is connected with the first port 41 of four-way valve 4, the second end of four-way valve 4
Mouth 42 is connected with the coolant inlet of power battery 6, the coolant inlet of the cooling liquid outlet of power battery 6 and the first water pump 7
It is connected.Similarly, by the way that heat exchanger 5 to be arranged in the upstream of power battery 6, when power battery 6 cooling using air-conditioning system, from
And then the coolant liquid of the cooling liquid outlet outflow of heat exchanger 5 can cool down power battery 6, be conducive to be promoted to power
The cooling effect of battery 6.
The air-conditioning system provided in an embodiment of the present disclosure includes that refrigerant main line, the first refrigerant branch and second are cold
Matchmaker's branch, the first refrigerant branch and the second refrigerant branch circuit parallel connection, are provided with compressor 11 and condenser 12 on refrigerant main line, and first
Refrigerant branch road is provided with the first expansion valve 15 and evaporator 16, and the second refrigerant branch road is provided with the second expansion valve 13 and heat exchange
Device 5, also, there also is provided air blower 17 near evaporator 16, for drying to evaporator 16 and generating evaporator 16
Cooling capacity be blown into crew module, realize crew module's refrigeration.
Wherein, the first expansion valve 15 can be heating power expansion valve, which is used to adjust the stream of the first refrigerant branch
Amount.When the first expansion valve 15 is heating power expansion valve, in order to control the opening and closing of the first refrigerant branch, it is also necessary to cold first
The solenoid valve 14 for shutting off is arranged in matchmaker's branch road, to be used cooperatively with the first expansion valve 15.Second expansion valve 13 can be electronics
Expansion valve, the electric expansion valve is for shutting off and adjusting flow, in order to control opening and closing or the flow of the second refrigerant branch.?
In other embodiments, the first expansion valve 15 can be electric expansion valve.
Optionally, as shown in Fig. 2, air-conditioning system can also include the second ptc heater 21, the second ptc heater 21 can
To be arranged in parallel with evaporator 16, and air blower 17 is shared with evaporator 16, the second ptc heater 21 is used for heater blower
Warm wind after heating is blown into crew module by the wind of 17 blowouts, air blower 17, realizes that air-conditioning system individually heats to crew module.
As the disclosure optionally arrangement, as shown in Figure 1, within air-conditioning systems, the refrigerant exit of compressor 11 with
The refrigerant inlet of condenser 12 is connected to, the refrigerant exit of condenser 12 respectively with the refrigerant inlet of solenoid valve 14 and the second expansion valve
13 refrigerant inlet connection, the refrigerant exit of solenoid valve 14 are connected to the refrigerant inlet of the first expansion valve 15, the first expansion valve 15
Refrigerant exit be connected to the refrigerant inlet of evaporator 16, the refrigerant inlet of the refrigerant exit of the second expansion valve 13 and heat exchanger 5
Connection, the refrigerant exit of evaporator 16 and the refrigerant exit of heat exchanger 5 are connected to the refrigerant inlet of compressor 11.In this way, needing
When will be cooling to power battery 6 using air-conditioning system, it is cooling the cooling capacity in air-conditioning system can be transferred to battery by heat exchanger 5
Liquid stream road, to realize the cooling to power battery 6.
Further, in the embodiments of the present disclosure, heater cores 22 can be arranged in parallel with evaporator 16, and with evaporation
Device 16 shares air blower 17, and air blower 17 is used to dry to evaporator 16 and heater cores 22.First ptc heater 19 is heating
After heater cores 22, the heat of heater cores 22 is blown into crew module by air blower 17, realizes crew module's heating.Further, exist
In embodiment as shown in Figure 2, if crew module's heating demand is higher, only supplied by the second ptc heater 21 to crew module
It is warm when can not meet the heating demand of crew module, it can star the first ptc heater 19 to crew module's auxiliary heating.
Specifically, when crew module needs to freeze, opens solenoid valve 14 and the first expansion valve 15, refrigerant flow through the first refrigerant
Branch, and freezed by evaporator 16 to crew module.When cooling to power battery 6 using air-conditioning system, the second expansion is opened
Valve 13, refrigerant flows through the second refrigerant branch, and is exchanged heat by heat exchanger 5, the coolant liquid in cooling battery cooling flowing path, thus real
Existing power battery 6 is cooling.It, can be swollen by adjusting second when needing when freeze to crew module while to cool down to power battery 6
The aperture of swollen valve 13 to adjust the flow of the refrigerant of the first refrigerant branch and the second refrigerant branch road respectively, to carry out air-conditioning system
The cooling capacity of system is distributed.
In addition, the vehicle heat management system that the embodiment of the present disclosure provides further includes that electricity drives heat management circuit, which drives heat pipe
Reason is provided with third water pump 20, automatically controlled, motor 1 and radiator 2 in circuit, wherein automatically controlled includes electric machine controller 9, DC-DC turns
Parallel operation 10.As a kind of optionally arrangement, the cooling liquid outlet of third water pump 20 and the coolant inlet of electric machine controller 9
Be connected, the cooling liquid outlet of electric machine controller 9 is connected with the coolant inlet of DC-DC converter 10, DC-DC converter 10 it is cold
But liquid entrance is connected with the coolant inlet of motor 1, and the cooling liquid outlet of motor 1 is connected with the coolant inlet of radiator 2, dissipates
The cooling liquid outlet of hot device 2 is connected with the coolant inlet of third water pump 20.
Optionally, the vehicle heat management system that the disclosure provides is also provided with gas exhaust and liquid supplementation device 3, and battery is cold
But liquid stream road, heating flow path and electricity drive heat management circuit and share gas exhaust and liquid supplementation device 3, and specifically, gas exhaust and liquid supplementation device 3 passes through the
It is connected to by one tee tube 31 in battery coolant liquid flow path, gas exhaust and liquid supplementation device 3 is by being connected to heating flow path by the second tee tube 32
In, gas exhaust and liquid supplementation device 3 is driven in heat management circuit by being connected to electricity by third tee tube 33.
Optionally, embodiment of the disclosure also provides a kind of vehicle, which can be pure electric automobile, is also possible to mix
Close power vehicle, the disclosure to this with no restriction.
The vehicle heat management system provided for the embodiment of the present disclosure.When power battery 6 has demand for heat, can be used
One ptc heater 19 heats power battery 6, that is, by the way that heating flow path is connected with battery coolant liquid flow path, makes heating
Coolant liquid in flow path flows into battery coolant liquid flow path, the heat generated using the first ptc heater 19 to power battery 6 into
Row heating.
Such as when vehicle is in the original state of electrically driven (operated) original state or charging, 6 temperature of power battery is lower, moves
When power battery 6 has demand for heat, control method are as follows: firstly, the temperature of detection power battery 6, when the temperature of power battery 6 is small
When the first battery temperature threshold value, that is to say, that 6 temperature of power battery is lower, needs to heat power battery 6, such as Fig. 1
Shown, the first port 41 and third port 43 for controlling four-way valve 4 are connected, the second port 42 of four-way valve 4 and the 4th port 44
It is connected, at this time the circulation path of coolant liquid are as follows: the first port 41 and third port of first 7 → heat exchanger of water pump, 5 → four-way valve 4
4th port 44 of 43 → the second water pump, 8 → the first 19 → heater cores of ptc heater, 22 → four-way valve 4 and second port 42 →
6 → the first water pump 7 of power battery.In this way, the coolant liquid in heating flow path flows into battery coolant liquid flow path by four-way valve 4, it is real
Now power battery 6 is heated.
Wherein, in the embodiment illustrated in fig. 2, if crew module has heating demand, the second ptc heater is enabled first
21 heat to crew module, and start air blower 17, to realize that crew module heats；If crew module's heating demand is larger, only by the
Two ptc heaters 21 are unable to satisfy the heating demand of crew module, then the first ptc heater 19 is to the same of the heating of power battery 6
When the second ptc heater 21 can also be assisted to heat crew module, air blower 17 can blow the heat on heater cores 22
Enter crew module, for heating to crew module.After coolant liquid is flowed out from heater cores 22, coolant liquid also has certain at this time
Waste heat can also continue to heated power battery 6 using waste heat when flowing through power battery 6, and the first PTC of waste is avoided to add
The heat that hot device 19 generates, to improve the utilization rate of heat.
Further, in the case where the first ptc heater 19 of above-mentioned utilization is heated to power battery 6, if occupant at this time
Cabin does not have heating demand, then does not start air blower 17, the loss of heat when flowing through heater cores 22 to avoid coolant liquid.
It should be noted that the first above-mentioned battery temperature threshold value can be configured according to actual needs, the disclosure is to this
With no restriction.
In the disclosure, such as when vehicle is in electric drive or charging work state, 6 temperature of power battery is higher, when
When power battery 6 has cooling requirement, air-conditioning system can be used to cool down power battery 6, cooling procedure are as follows:
Firstly, the temperature of detection power battery 6, when the temperature of power battery 6 is greater than the second battery temperature threshold value, also
It is to say, 6 temperature of power battery is higher, needs to cool down power battery 6, at this point, the first port 41 of controllable four-way valve 4
It is connected with second port 42, the third port 43 of four-way valve 4 and the 4th port 44 are connected, and make heating flow path and the cooling liquid stream of battery
Road disconnects forming mutually independent circuit.In this way, in battery coolant liquid flow path, coolant liquid is followed by the first water pump 7 → change
6 → the first water pump 7 of first port 41 and 42 → power battery of second port of hot 5 → four-way valve of device 4.Also, control air-conditioning system
System runs and the refrigerant in air-conditioning system is made to flow through heat exchanger 5, the circulation path of refrigerant are as follows: 11 → condenser of compressor 12 → the
Two 13 → heat exchanger of expansion valve, 5 → compressors 11, it is cooling to coolant liquid in battery coolant liquid flow path by heat exchanger 5, thus cold
But power battery 6.At this point, the first port 41 and second port 42 by control four-way valve 4 are connected, make battery coolant liquid flow path
Form independent circuit.It is adopted in this way, air-conditioning system is needed not move through by the cooling capacity that heat exchanger 5 is transmitted on battery coolant liquid flow path
Warm current road can be avoided the cooling capacity that heating flow path occupies air-conditioning system, to improve the cooling effect of power battery 6.
It should be noted that the second battery temperature threshold value is greater than the first battery temperature threshold value.Second battery temperature threshold value with
Outdoor environment temperature threshold value can also be set according to specific circumstances, can take any suitable value, the disclosure to this with no restriction.
In the case where carrying out cooling to power battery 6 by air-conditioning system, when crew module needs to freeze, electromagnetism is opened
Valve 14 and the first expansion valve 15, refrigerant flow through the first refrigerant branch, and give crew module's refrigeration by evaporator 16, at this time refrigerant
Circulation path are as follows: 11 → condenser of compressor, 12 → solenoid valve, 14 → the first 15 → heat exchanger of expansion valve, 5 → compressor 11.
It, can be by adjusting the it should be noted that when needing when freeze to crew module while to cool down to power battery 6
The aperture of two expansion valves 13 to adjust the flow of the refrigerant of the first refrigerant branch and the second refrigerant branch road respectively, to carry out sky
The cooling capacity of adjusting system is distributed.Its specific control method are as follows: firstly, receiving indoor environment target temperature set by user, and examine
Survey indoor environment temperature；When the temperature of power battery 6 is greater than the second battery temperature threshold value, outdoor environment temperature is not less than outdoor ring
Border temperature threshold, and indoor environment temperature be greater than indoor environment target temperature when, control air-conditioning system operation and make air-conditioning system
Refrigerant in system flows through evaporator 16 and heat exchanger 5.After air-conditioning system runs preset duration, if indoor environment temperature is still greater than
Indoor environment target temperature then considers the refrigeration demand for preferentially meeting crew module, adjusts the aperture of the second expansion valve 13, to reduce
The cold medium flux of heat exchanger 5 is flowed through, the cold medium flux for flowing through evaporator 16 is increased.
Further, other than in addition to described above to power battery 6 and crew module's progress heat management, the embodiment of the present disclosure
The vehicle heat management system of offer can also carry out motor 1 or automatically controlled (including electric machine controller 9 and DC-DC converter 10) cold
But, such as when vehicle is in electric drive or charging work state, motor 1 or automatically controlled temperature are higher, need to carry out motor 1 cold
But, specific control process are as follows:
Firstly, detection motor 1 and automatically controlled temperature, when the temperature of motor 1 is not less than motor temperature threshold value or automatically controlled
When temperature is not less than automatically controlled temperature threshold, as shown in Figure 1, control third water pump 20 and radiator 2 start, coolant liquid drives heat in electricity
Circulation path in management loop are as follows: third water pump 20 → electric machine controller, 9 → DC-DC converter, 10 → motor, 1 → radiator
2.To be cooled down by radiator 2 to motor 1 and electric machine controller 9.
It should be noted that above-mentioned motor temperature threshold value and automatically controlled temperature threshold can be configured according to actual needs,
The disclosure to this with no restriction.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (8)
1. a kind of vehicle heat management system, which is characterized in that including battery coolant liquid flow path, heating flow path, heat exchanger (5), four
Port valve (4), the heat exchanger (5) are arranged in air-conditioning system and the battery coolant liquid flow path simultaneously, the battery coolant liquid
It is provided with power battery (6), the first water pump (7) on flow path, is provided with the second water pump (8) on the heating flow path, the first PTC adds
Hot device (19) and heater cores (22) for crew module's heating, one end of the battery coolant liquid flow path and the four-way valve
(4) first port (41) is connected, and the other end is connected with the second port (42) of the four-way valve (4), the heating flow path
One end is connected with the third port (43) of the four-way valve (4), the 4th port (44) phase of the other end and the four-way valve (4)
Even.
2. vehicle heat management system according to claim 1, which is characterized in that the third port of the four-way valve (4)
(43) it is connected with the coolant inlet of second water pump (8), the cooling liquid outlet and described first of second water pump (8)
The coolant inlet of ptc heater (19) is connected, the cooling liquid outlet and the heater cores of first ptc heater (19)
(22) coolant inlet is connected, the cooling liquid outlet of the heater cores (22) and the 4th port of the four-way valve (4)
(44) it is connected.
3. vehicle heat management system according to claim 1, which is characterized in that the coolant liquid of first water pump (7) goes out
Mouth is connected with the coolant inlet of the heat exchanger (5), cooling liquid outlet and the four-way valve (4) of the heat exchanger (5)
First port (41) is connected, the second port (42) and the coolant inlet phase of the power battery (6) of the four-way valve (4)
Even, the cooling liquid outlet of the power battery (6) is connected with the coolant inlet of first water pump (7).
4. vehicle heat management system according to claim 1, which is characterized in that the air-conditioning system include refrigerant main line,
First refrigerant branch and the second refrigerant branch, the first refrigerant branch and the second refrigerant branch circuit parallel connection, the refrigerant are dry
Road is provided with compressor (11) and condenser (12), and the first refrigerant branch road is provided with the first expansion valve (15) and evaporation
Device (16), the second refrigerant branch road are provided with the second expansion valve (13) and the heat exchanger (5).
5. vehicle heat management system according to claim 4, which is characterized in that first expansion valve (15) is that heating power is swollen
Swollen valve, the first refrigerant branch road are additionally provided with solenoid valve (14), and second expansion valve (13) is electric expansion valve.
6. vehicle heat management system according to any one of claims 1-5, which is characterized in that vehicle heat management system
System further include electricity drive heat management circuit, it is described electricity drive heat management circuit in be provided with third water pump (20), automatically controlled, motor (1) and
Radiator (2).
7. vehicle heat management system according to claim 6, which is characterized in that the coolant liquid of the third water pump (20) goes out
Mouth is connected with the automatically controlled coolant inlet, the coolant inlet phase of the automatically controlled cooling liquid outlet and the motor (1)
Even, the cooling liquid outlet of the motor (1) is connected with the coolant inlet of the radiator (2), the cooling of the radiator (2)
Liquid outlet is connected with the coolant inlet of the third water pump (20).
8. a kind of vehicle, which is characterized in that the vehicle includes vehicle heat management of any of claims 1-7 system
System.
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|---|---|---|---|
| CN201821996109.5U CN209466956U (en) | 2018-11-29 | 2018-11-29 | Vehicle heat management system and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821996109.5U CN209466956U (en) | 2018-11-29 | 2018-11-29 | Vehicle heat management system and vehicle |
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| CN209466956U true CN209466956U (en) | 2019-10-08 |
Family
ID=68088644
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| CN (1) | CN209466956U (en) |
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