CN109466273A - A kind of heat pump air conditioning system and its control method and automobile - Google Patents

A kind of heat pump air conditioning system and its control method and automobile Download PDF

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Publication number
CN109466273A
CN109466273A CN201811278492.5A CN201811278492A CN109466273A CN 109466273 A CN109466273 A CN 109466273A CN 201811278492 A CN201811278492 A CN 201811278492A CN 109466273 A CN109466273 A CN 109466273A
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CN
China
Prior art keywords
solenoid valve
heat exchanger
heat
branch
battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811278492.5A
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Chinese (zh)
Inventor
李潇
郭爱斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201811278492.5A priority Critical patent/CN109466273A/en
Publication of CN109466273A publication Critical patent/CN109466273A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392Air-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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H1/00899Controlling the flow of liquid in a heat pump system
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307Component temperature regulation using a liquid flow

Abstract

The present invention provides a kind of heat pump air conditioning system and its control method and automobile, the heat pump air conditioning system includes: compressor, outside heat exchanger, first inside heat exchanger and the second inside heat exchanger, first inside heat exchanger can carry out absorption refrigeration to car, and the second inside heat exchanger can carry out heat release heating to car;Further include the first cooling circuit, Battery case and third heat exchanger are provided on the first cooling circuit, third heat exchanger can be arranged in parallel at the both ends of the first inside heat exchanger;Third heat exchanger can also be arranged in parallel at the both ends of the second inside heat exchanger.Refrigeration cooling effect can be carried out to battery by refrigerant through the invention, heating thermogenic action can also be carried out to battery by refrigerant, to which battery is cooled down or be heated as needed, meet the temperature control needs of battery, therefore can also ensure the high efficient and reliable operation of each main component of electric car especially battery while guaranteeing that interior space comfort requires.

Description

A kind of heat pump air conditioning system and its control method and automobile
Technical field
The invention belongs to air-conditioning technical fields, and in particular to a kind of heat pump air conditioning system and its control method and automobile.
Background technique
At present electric car need to carry out heat management space and component it is more, interior space need according to user's Demand is freezed or is heated, and driving motor and control module radiate to prevent hot operation from damaging, and battery pack is then Need to maintain optimum operation temperature to guarantee its working efficiency and service life.At present generally using electric drive air conditioner in compartment Portion space carries out temperature adjusting, and driving motor, battery pack, control module etc. are then radiated by coolant liquid or air-cooled form. Requirement with pure electric automobile to course continuation mileage is higher and higher, and the energy density of lithium battery is also increasing.This means that electric The calorific value when charge and discharge of pond is also increasing, and to battery thermal management, more stringent requirements are proposed.
In addition when electric car is placed under low temperature environment for a long time, the too low guiding discharge efficiency drop of battery pack temperature It is low, it needs to heat battery pack at this time.It is at present usually real by way of hot-water heating PTC electric heater heated cooling fluid Existing, the efficiency of electric heater is lower, if heat pump air conditioner can be used to heat coolant liquid, can greatly improve whole energy Effect, while save the cost.
In addition during season in spring and autumn electric automobile during traveling, it can be potentially encountered crew module and need to heat and battery pack needs Cooling situation, how to meet different thermal management requirements at this time is heat management system problem to be solved.
In addition current middle and high end vehicle, which requires, realizes multi-temperature zone independence temperature control, and this requires exist simultaneously in air-conditioning box 1 cryogenic heat exchanger and 1 high-temperature heat-exchanging mix wind ratio by airdoor control cold-hot wind and realize different warm area independence temperature controls.
Since the heat management system of electric car in the prior art not can guarantee the comfort requirement of interior space The each main component high efficient and reliable operation of electric car is also ensured simultaneously, cannot achieve and coolant liquid is added with heat pump air conditioner Heat cannot achieve crew module's heating cooling situation of battery pack simultaneously, cannot achieve crew module to heat indirectly to battery pack The technical problems such as multi-temperature zone independence temperature controlling function, therefore researching and designing of the present invention goes out a kind of heat pump air conditioning system and its control method And automobile.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcome the heat management system of electric car in the prior art without Method guarantees to also ensure electric car each main component high efficient and reliable operation while interior space comfort requires Defect, to provide a kind of heat pump air conditioning system and its control method and automobile.
The present invention provides a kind of heat pump air conditioning system comprising:
Compressor, outside heat exchanger, the first inside heat exchanger and the second inside heat exchanger, the first inside heat exchanger energy Enough to carry out absorption refrigeration to car, second inside heat exchanger can carry out heat release heating to car;
Further include the first cooling circuit, the first coolant liquid, first cooling circuit are flowed in first cooling circuit On be provided with Battery case and third heat exchanger, the third heat exchanger can be arranged in parallel in first inside heat exchanger Both ends carry out cooling down to the first coolant liquid to pass through refrigerant in the third heat exchanger, to cool down to battery; The third heat exchanger can also be arranged in parallel at the both ends of second inside heat exchanger, to lead in the third heat exchanger It crosses refrigerant and heating heating is carried out to coolant liquid, to be heated to battery.
Preferably,
The compressor, the outside heat exchanger and first inside heat exchanger connect and are linked to be refrigeration major loop, and Line segments locating for the heat exchanger of first inside have the first end that is connected with the suction end of the compressor and with the outside The connected second end of heat exchanger, and the 6th solenoid valve is provided in the line segments, the third end of the outside heat exchanger with The exhaust end of the compressor is connected, and the 4th end of the outside heat exchanger is connected with the second end of the line segments.
Preferably,
Branch where the heat exchanger of second inside is the first branch, and the 5th end of the first branch passes through second Branch is connect with the exhaust end of the compressor, and the 6th end of the first branch passes through the institute of third branch and the line segments Second end connection is stated, and is provided with second solenoid valve in the second branch, the third branch road is provided with the 7th solenoid valve.
Preferably,
The 6th end of the first branch also passes through the fourth end phase of the 4th branch with the outside heat exchanger Even, and the 4th road is additionally provided with the 8th solenoid valve.
Preferably,
Refrigerant branch where the third heat exchanger is the 5th branch, and the 7th end of the 5th branch with it is described The second end of line segments connects, and the 8th end of the 5th branch passes through the 6th branch and described the first of the line segments End connection, the 6th road are provided with the 5th solenoid valve, and the 8th end of the 5th branch also passes through the 7th branch and institute Second branch connection is stated, the 7th road is provided with the 9th solenoid valve.
Preferably,
The third end of the outside heat exchanger also passes through the 8th branch and is connected with the suction end of the compressor, and described Eight roads are provided with third solenoid valve, and/or positioned at the position of the exhaust end of the compressor on the refrigeration major loop It is additionally provided with the first solenoid valve.
Preferably,
It further include the flash evaporation being arranged on the refrigeration major loop, and the tonifying Qi end of the flash evaporation passes through the 9th branch It is connected to the tonifying Qi end of the compressor, and the 9th road is provided with the 4th solenoid valve, the refrigeration major loop is upper First throttle valve, the refrigeration major loop are additionally provided between the 4th end and the flash evaporation of the outside heat exchanger It is upper that second throttle is additionally provided between first inside heat exchanger and the flash evaporation, it is located on the 5th branch Third throttle valve is additionally provided between 7th end and the third heat exchanger.
Preferably,
It is additionally provided with the first radiator on first cooling circuit, enables to the first coolant liquid to flow through described first and dissipates When hot device, cooling effect can be carried out by cooling, and then to battery;
It is additionally provided with triple valve on first cooling circuit, the Battery case is enabled to radiate with described first Device connects and switches over control between first radiator disconnection.
Preferably,
First coolant liquid is water, is additionally provided with the first water pump on first cooling circuit.
Preferably,
Further include the second cooling circuit, is provided in charger, controller and driving motor on second cooling circuit An at least structure, flow the first coolant liquid in second cooling circuit, and is additionally provided on second cooling circuit Second radiator, when the second coolant liquid being enabled to flow through second radiator, can by cooling, and then to charger, An at least structure in controller and driving motor cools down.
Preferably,
When simultaneously including the second radiator, the first radiator and outside heat exchanger: it further include condensation fan, the condensation Blower can carry out air draught or blowing to second radiator, first radiator and the outside heat exchanger simultaneously.
Preferably,
Second coolant liquid is water, is provided with the second water pump on second cooling circuit.
The present invention also provides a kind of control methods of heat pump air conditioning system, use preceding described in any item heat pump air conditioner systems System, to car freezed and heated between switching control, and to the switching control that battery is cooled and heated.
Preferably,
When simultaneously including the first solenoid valve, second solenoid valve, third solenoid valve, the 4th solenoid valve, the 5th solenoid valve, the 6th When solenoid valve, the 7th solenoid valve, the 8th solenoid valve and the 9th solenoid valve and triple valve:
And when outdoor temperature is greater than the first preset temperature and when less than the second preset temperature, judgement needs to freeze to crew module And underload cooling is carried out to battery, first solenoid valve, the second solenoid valve, the 4th electromagnetism are opened in control The third solenoid valve, the 5th solenoid valve, described is closed in valve, the 6th solenoid valve and the 8th solenoid valve, control 7th solenoid valve and the 9th solenoid valve, first inside heat exchanger refrigeration, the heating of second inside heat exchanger are described Third heat exchanger does not exchange heat, and controls the triple valve and first radiator is switched on, by first radiator pair Battery is cooled down.
Preferably,
When simultaneously including the first solenoid valve, second solenoid valve, third solenoid valve, the 4th solenoid valve, the 5th solenoid valve, the 6th When solenoid valve, the 7th solenoid valve, the 8th solenoid valve and the 9th solenoid valve and triple valve:
And when outdoor temperature is greater than the second preset temperature, judgement needs to freeze to crew module and carry out to battery high negative Lotus is cooling, and first solenoid valve, the second solenoid valve, the 4th solenoid valve, the 5th solenoid valve, institute are opened in control The 6th solenoid valve and the 8th solenoid valve are stated, the third solenoid valve, the 7th solenoid valve and the described 9th are closed in control Solenoid valve, first inside heat exchanger refrigeration, the heating of second inside heat exchanger, the third heat exchanger heat exchange, control The triple valve makes first radiator disconnect, cool down by the third heat exchanger to battery.
Preferably,
When simultaneously including the first solenoid valve, second solenoid valve, third solenoid valve, the 4th solenoid valve, the 5th solenoid valve, the 6th When solenoid valve, the 7th solenoid valve, the 8th solenoid valve and the 9th solenoid valve and triple valve:
When outdoor temperature is less than the first preset temperature, judgement needs to heat crew module and heat battery, The second solenoid valve, the third solenoid valve, the 4th solenoid valve, the 7th solenoid valve and the described 9th are opened in control First solenoid valve, the 5th solenoid valve, the 6th solenoid valve and the 8th solenoid valve are closed in solenoid valve, control, First inside heat exchanger does not exchange heat, second inside heat exchanger heats, the third heat exchanger heat exchange, control described three Port valve makes first radiator disconnect, heat by the third heat exchanger to battery.
Preferably,
When simultaneously including the first solenoid valve, second solenoid valve, third solenoid valve, the 4th solenoid valve, the 5th solenoid valve, the 6th When solenoid valve, the 7th solenoid valve, the 8th solenoid valve and the 9th solenoid valve and triple valve:
When outdoor temperature is less than the first preset temperature and big battery-heating amount, judgement need to crew module heat and Battery is cooled down, the second solenoid valve, the third solenoid valve, the 4th solenoid valve and the described 7th are opened in control Solenoid valve, control close first solenoid valve, the 5th solenoid valve, the 6th solenoid valve, the 8th solenoid valve and 9th solenoid valve, first inside heat exchanger does not exchange heat, second inside heat exchanger heats, the third heat exchanger It does not exchange heat, controls the triple valve and first radiator is made to connect, cool down by first radiator to battery.
The present invention also provides a kind of automobiles comprising preceding described in any item heat pump air conditioning systems.
A kind of heat pump air conditioning system provided by the invention and its control method and automobile have the following beneficial effects:
1. the present invention enables to the first inside heat exchanger by the first inside heat exchanger of setting and the second inside heat exchanger Refrigeration is carried out to car for independence, so that the second inside heat exchanger is used to independently heat car, it being capable of basis Actual needs is heated or is freezed to car, improves comfort, and by the first cooling circuit of setting and cooling by first Third heat exchanger in circuit can be parallel-connected to the both ends of the first inside heat exchanger, can be exchanged heat by refrigerant to third The first coolant liquid in device is freezed, and then carries out refrigeration cooling effect to battery, moreover it is possible to be connected in parallel third heat exchanger To the both ends of the second inside heat exchanger, the first coolant liquid in third heat exchanger can be heated by refrigerant, in turn Heating thermogenic action is carried out to battery, so as to be cooled down or heated to battery as needed, meets the temperature control need of battery It wants, therefore can also ensure each main component of electric car especially while guaranteeing that interior space comfort requires It is the high efficient and reliable operation of battery;
2. the heat pump air conditioning system in heat pump air conditioning system (heat management system) of the invention can be according to the demand of user Freezed or heated, interior space is made to remain comfortable temperature, the cooling of the battery pack in heat management system and Heating can realize cooling and heating for coolant liquid by heat pump air conditioning system, than in PTC electric heating heating electricity The mode of pond group, comprehensive energy efficiency ratio is higher, and the heat pump air conditioning system and coolant circulation system in heat management system can be with By the control to solenoid valve, crew module's heating cooling function of battery pack simultaneously, the heat pump air conditioner in heat management system are realized System can by the control to solenoid valve, crew module's multi-temperature zone independence temperature controlling function, without additionally increasing PTC electric heating, Save the cost improves safety coefficient simultaneously;
3. the present invention, can be cold to first in such a way that air radiates also by the structure type of the first radiator of setting But the first coolant liquid in circuit carries out radiating and cooling, to realize the purpose to battery cooling and heat dissipation, such case is suitable for Cell heat underload, when the heat for needing to radiate is smaller, by triple valve can to the first radiator switch on and off into The first radiator is connected and short-circuit third heat exchanger when row control, i.e. underload, so that the first coolant liquid only passes through the first heat dissipation Device carries out cooling, connects third heat exchanger when high load capacity and disconnects the first radiator, so that the first coolant liquid only passes through the Three heat exchangers carry out heat exchange and cool.
4. the present invention also passes through the second cooling circuit of setting, and the knot of the second radiator is arranged on the second cooling circuit Configuration formula, while can be realized to the control of the interior space temperature of electric car, moreover it is possible to driving motor, charger, Each component such as control module carries out temperature control and integrated thermal management, guarantees to guarantee while interior space comfort requires The each main component high efficient and reliable operation of electric car.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the heat pump air conditioning system (or integrated thermal management system) of electric car of the invention;
Fig. 2 be electric car of the invention heat pump air conditioning system (or integrated thermal management system) crew module freeze+ System operation logic figure under cooling (underload) mode of battery;
Fig. 3 be electric car of the invention heat pump air conditioning system (or integrated thermal management system) crew module freeze+ System operation logic figure under cooling (high load capacity) mode of battery;
Fig. 4 be electric car of the invention heat pump air conditioning system (or integrated thermal management system) crew module heat+ System operation logic figure under battery-heated model;
Fig. 5 be electric car of the invention heat pump air conditioning system (or integrated thermal management system) crew module heat+ System operation logic figure under battery refrigerating mode.
Appended drawing reference indicates in figure are as follows:
1, compressor;2, outside heat exchanger;21, third end;22, the 4th end;31, the first inside heat exchanger;32, in second Side heat exchanger;4, the first cooling circuit;40, water pump;41, the first radiator;42, triple valve;5, Battery case;6, third exchanges heat Device;7, freeze major loop;8, line segments;81, first end;82, second end;91, the first solenoid valve;92, second solenoid valve;93, Third solenoid valve;94, the 4th solenoid valve;95, the 5th solenoid valve;96, the 6th solenoid valve;97, the 7th solenoid valve;98, the 8th electricity Magnet valve;99, the 9th solenoid valve;11, the first branch;111, the 5th end;112, the 6th end;12, second branch;13, third branch; 14, the 4th branch;15, the 5th branch;151, the 7th end;152, the 8th end;16, the 6th branch;17, the 7th branch;18, the 8th Branch;19, the 9th branch;10, flash evaporation;101, gas-liquid separator;102, HVAC air-conditioning box;201, first throttle valve;202, Second throttle;203, third throttle valve;300, the second cooling circuit;301, charger;302, controller;303, driving electricity Machine;304, the second radiator;305, condensation fan;306, the second water pump.
Specific embodiment
As shown in Figs. 1-5, the present invention provides a kind of heat pump air conditioning system comprising:
Compressor 1, outside heat exchanger 2, the first inside heat exchanger 31 and the second inside heat exchanger 32, first inside are changed Hot device 31 can carry out absorption refrigeration to car, and second inside heat exchanger 32 can carry out heat release heating to car;
Further include the first cooling circuit 4, the first coolant liquid is flowed in first cooling circuit 4, described first cools back Be provided with Battery case 5 and third heat exchanger 6 (preferably plate heat exchanger) on road 4, the third heat exchanger 6 can parallel connection set Set first inside heat exchanger 31 both ends, in the third heat exchanger 6 pass through refrigerant to the first coolant liquid into Row cooling down, to be cooled down to battery;The third heat exchanger 6 can also be arranged in parallel in second inside heat exchanger 32 both ends, to carry out heating heating to coolant liquid by refrigerant in the third heat exchanger 6, to add to battery Heat.
The present invention enables to the first inside heat exchanger to use by the first inside heat exchanger of setting and the second inside heat exchanger Independently to carry out refrigeration to car, so that the second inside heat exchanger is used to independently heat car, it can be according to reality Border needs that car is heated or freezed, and improves comfort, and cool back by the first cooling circuit of setting and by first Third heat exchanger in road can be parallel-connected to the both ends of the first inside heat exchanger, can be by refrigerant to third heat exchanger In the first coolant liquid freeze, and then refrigeration cooling effect is carried out to battery, moreover it is possible to be parallel-connected to third heat exchanger The both ends of second inside heat exchanger can heat the first coolant liquid in third heat exchanger by refrigerant, and then right Battery carries out heating thermogenic action, so as to be cooled down or heated to battery as needed, meets the temperature control needs of battery, Therefore each main component of electric car can be also ensured especially while guaranteeing that interior space comfort requires The high efficient and reliable of battery is run;
It can be freezed or be heated according to the demand of user, interior space is made to remain comfortable temperature, heat Cooling and heating for battery pack in management system can be by heat pump air conditioning system cooling and heating come real to coolant liquid It is existing, than in the mode for heating battery pack with PTC electric heating, comprehensive energy efficiency ratio is higher, the heat pump air conditioner in heat management system System and coolant circulation system can realize crew module's heating cooling function of battery pack simultaneously by the control to solenoid valve Can, heat pump air conditioning system in heat management system can by the control to solenoid valve, crew module's multi-temperature zone independence temperature controlling function, Without additionally increasing PTC electric heating, save the cost improves safety coefficient simultaneously.
Preferably,
The compressor 1, the outside heat exchanger 2 and first inside heat exchanger 31 connect and are linked to be refrigeration major loop 7, and line segments 8 locating for first inside heat exchanger 31 have the first end 81 that is connected with the suction end of the compressor 1 and The second end 82 being connected with the outside heat exchanger 2, and the 6th solenoid valve 96, the outside are provided in the line segments 8 The third end 21 of heat exchanger 2 is connected with the exhaust end of the compressor 1, the 4th end 22 of the outside heat exchanger 2 and the pipe The second end 82 in section 8 is connected.This is the preferred company of compressor of the invention, outside heat exchanger, the first inside heat exchanger Connect structure type, i.e., by the setting of the 6th solenoid valve can the on-off according to actual needs to the first inside heat exchanger control System (since the first inside heat exchanger is mainly used for refrigeration, opens the solenoid valve when freezing in the car, car heating When the solenoid valve is closed).
Preferably,
Branch where second inside heat exchanger 32 is the first branch 11, and the 5th end of the first branch 11 111 are connect by second branch 12 with the exhaust end of the compressor 1, and the 6th end 112 of the first branch 11 passes through third Branch 13 is connect with the second end 82 of the line segments 8, and second solenoid valve 92 is provided in the second branch 12, institute It states and is provided with the 7th solenoid valve 97 on third branch 13.This is the preferred type of attachment of the second inside heat exchanger of the invention, i.e., The second inside heat exchanger is set by the first branch, the second inside heat exchanger is connected to by compressor air-discharging by second branch Second inside heat exchanger is connected to outside heat exchanger by third branch, passes through second solenoid valve and the 7th solenoid valve energy by end The on-off for enough controlling second branch and third branch, so that the second inside heat exchanger is switched on when needing to heat, does not need to make By its open circuit when hot, realization carries out heating effect to third heat exchanger, carries out heat effect, such case to battery to realize Situations such as ambient temperatures are lower in winter etc. suitable for battery.
Preferably,
The 6th end 112 of the first branch 11 also passes through the described of the 4th branch 14 and the outside heat exchanger 2 4th end 22 is connected, and is additionally provided with the 8th solenoid valve 98 on the 4th branch 14.This is the second inside heat exchange of the invention Preferred connection type between device and outside heat exchanger, i.e., when car can be freezed by the 4th branch of setting, will be in second In parallel, the refrigerant heat release in the second inside heat exchanger and outside heat exchanger respectively is realized between side heat exchanger and outside heat exchanger It is combined into the first inside heat exchanger and is freezed by the remittance of the 4th branch again afterwards, intelligence can be carried out to interior temperature in this way The control of energy and accurate adjusting, improve car comfort.
Preferably,
Refrigerant branch where the third heat exchanger 6 is the 5th branch 15, and the 7th end of the 5th branch 15 151 connect with the second end 82 of the line segments 8, the 8th end 152 of the 5th branch 15 by the 6th branch 16 with The first end 81 of the line segments 8 connects, and is provided with the 5th solenoid valve 95, the 5th branch on the 6th branch 16 15 the 8th end 152 is also connect by the 7th branch 17 with the second branch 12, is provided with the 9th on the 7th branch 17 Solenoid valve 99.This is of the invention is used to the third heat exchanger that battery is freezed or is heated between refrigerant circuit It is preferred that connection type, by the 6th branch third heat exchanger can be parallel-connected to the first inside heat exchanger both ends, to The 6th branch is connected when to carry out freezing cooling to battery as needed, it can be by third heat exchanger by the 7th branch It is parallel-connected to the both ends of the first inside heat exchanger, thus when to carry out heating heating to battery as needed by the 7th Road is connected.
Preferably,
The third end 21 of the outside heat exchanger 2 is also connected by the 8th branch 18 with the suction end of the compressor 1, and It is provided with third solenoid valve 93 on 8th branch 18, and/or is located at the compressor 1 on the refrigeration major loop 7 The position of exhaust end is additionally provided with the first solenoid valve 91.This be outside heat exchanger of the invention as evaporator when preferred connection Mode, i.e., be connected to the suction end of compressor by way of the 8th branch is arranged, and realization is carried out by outside heat exchanger The case where effect of evaporation endothermic, such case is suitable for when the second inside heat exchanger heats, i.e., battery passes through third heat exchanger Heat or cooled down by the first radiator.
Preferably,
It further include the flash evaporation 10 being arranged on the refrigeration major loop 7, and the tonifying Qi end of the flash evaporation passes through the 9th Branch 19 is connected to the tonifying Qi end of the compressor 1, and the 4th solenoid valve 94, the refrigeration are provided on the 9th branch 19 First throttle is additionally provided between the 4th end 22 and the flash evaporation 10 of the outside heat exchanger 2 on major loop 7 Valve 201 is additionally provided with second between first inside heat exchanger 31 and the flash evaporation 10 on the refrigeration major loop 7 Throttle valve 202 is additionally provided with third between the 7th end 151 and the third heat exchanger 6 on the 5th branch 15 Throttle valve 203.
Shwoot can be carried out to refrigerant by way of setting flash evaporation and the 9th branch, the middle pressure tonifying Qi to compressor Mouth carries out Gas-supplying enthalpy-increasing effect, can be throttled to the refrigerant between outside heat exchanger and flash evaporation by first throttle valve Effect can carry out throttling action to the refrigerant between the first inside heat exchanger and flash evaporation by second throttle, pass through Third throttle valve can carry out throttling action to the refrigerant between third heat exchanger and refrigeration major loop.
Preferably,
It is additionally provided with the first radiator 41 on first cooling circuit 4, the first coolant liquid is enabled to flow through described When one radiator 41, cooling effect can be carried out by cooling, and then to battery;
It is additionally provided with triple valve 42 on first cooling circuit 4, enables to the Battery case 5 with described first Radiator 41 connects and switches over control between first radiator 41 disconnection.
It, can be in such a way that air radiates in the first cooling circuit by the way that the structure type of the first radiator is arranged First coolant liquid carries out radiating and cooling, to realize the purpose to battery cooling and heat dissipation, it is low that such case is suitable for cell heat Load when the heat for needing to radiate is smaller, can control switching on and off for the first radiator by triple valve, i.e., low Connect the first radiator when load and short-circuit third heat exchanger so that the first coolant liquid only pass through the first radiator radiate it is cold But, third heat exchanger is connected when high load capacity and disconnect the first radiator, so that the first coolant liquid only passes through third heat exchanger and carries out Heat exchange cools.
Preferably,
First coolant liquid is water, is additionally provided with the first water pump 40 on first cooling circuit 4.This is of the invention The preferred working medium of first coolant liquid is recycled by water and cool down or heat battery to battery, passes through first Water pump provides power to the flowing of water.
Preferably,
Further include the second cooling circuit 300, charger 301, controller 302 are provided on second cooling circuit 300 With at least structure in driving motor 303, the first coolant liquid is flowed in second cooling circuit 300, and described second cold But the second radiator 304 is additionally provided on circuit 300, when the second coolant liquid being enabled to flow through second radiator 304, energy It is enough to carry out cooling drop by cooling, and then at least structure in charger 301, controller 302 and driving motor 303 Temperature.Also pass through the second cooling circuit of setting, and the structure type of the second radiator, Neng Goushi are set on the second cooling circuit While now control the interior space temperature of electric car, moreover it is possible to each portion such as driving motor, charger, control module Part carries out temperature control and integrated thermal management, guarantees to guarantee electric car each master while interior space comfort requires Component high efficient and reliable is wanted to run.
Preferably,
When simultaneously including the second radiator 304, the first radiator 41 and outside heat exchanger 2: further including condensation fan 305, the condensation fan 305 can simultaneously exchange heat to second radiator 304, first radiator 41 and the outside Device 2 carries out air draught or blowing.Structure type by the way that condensation fan is arranged can be realized the cooling effect of the second radiator, Also the effect of the cooling effect and the cooling to outside heat exchanger of the first radiator, and such knot be can be realized Structure is compact, and condensation fan is effectively rationally utilized, and saves cost.
Preferably,
Second coolant liquid is water, is provided with the second water pump 306 on second cooling circuit 300.This is the present invention The second coolant liquid preferred working medium, i.e., recycled by water and battery cool down or heat to battery, by the Two water pumps provide power to the flowing of water.
The present invention provides a kind of electric car integrated thermal management system, main comprising carrying out temperature adjustment to interior space Heat pump air conditioning system and the coolant circulation system that temperature adjustment is carried out to driving motor, battery pack, control module etc., heat pump air conditioner system System and coolant circulation system can by the control to solenoid valve, realize heat pump air conditioning system cooled and heated to battery pack, Crew module's heating battery pack cooling simultaneously and crew module's multi-temperature zone independence temperature controlling function.
Electric car integrated thermal management system forms as shown in Figure 1, this electric car integrated thermal management system is mainly by 1 Heat pump air conditioning system and 2 independent coolant circulation system compositions.
As shown in Figure 1, wherein heat pump air conditioning system is by 1 compressor with second vapor injection increasing enthalpy, 1 outside heat exchanger, 2 A inside heat exchanger A and B, 1 plate heat exchanger (i.e. third heat exchanger 6), 1 flash evaporation, 1 gas-liquid separator, 3 throttlings Valve, 9 solenoid valves and the pipeline for connecting these components form.
As shown in Figure 1, the exhaust outlet of compressor is connect with 91 entrance of the first solenoid valve, the outlet of the first solenoid valve 91 and outside Heat exchanger entrance connection, outside heat exchanger exit are connect with 201 entrance of first throttle valve, the outlet of first throttle valve 201 and shwoot The connection of device inlet, flash evaporation gas outlet are connect with 94 entrance of the 4th solenoid valve, the outlet of the 4th solenoid valve 94 and compressor tonifying Qi Mouth connection, flash evaporation liquid outlet are connect with 202 entrance of second throttle, and the outlet of second throttle 202 enters with the 6th solenoid valve 96 Mouth connection, the outlet of the 6th solenoid valve 96 are connect with inside heat exchanger A (i.e. the first inside heat exchanger 31) entrance, inside heat exchanger A Outlet is connect with gas-liquid separator entrance, and gas-liquid separator outlet is connect with compressor air suction mouth.
As shown in Figure 1, the exhaust outlet of compressor simultaneously connect with 92 entrance of second solenoid valve, second solenoid valve 92 outlet and The connection of inside heat exchanger B (i.e. the second inside heat exchanger 32) entrance, the outlet inside heat exchanger B connect with 97 entrance of the 7th solenoid valve It connects, the outlet of the 7th solenoid valve 97 is connect with the outlet of second throttle 202 and 96 entrance of the 6th solenoid valve respectively.
As shown in Figure 1, outside heat exchanger entrance simultaneously connect with 93 entrance of third solenoid valve, third solenoid valve 93 outlet and The connection of gas-liquid separator entrance.
As shown in Figure 1, the outlet of second solenoid valve 92 is connect with 99 entrance of the 9th solenoid valve simultaneously, the outlet of the 9th solenoid valve 99 It is connect with plate heat exchanger refrigerant side entrance, plate heat exchanger refrigerant side outlet is connect with 203 entrance of third throttle valve, third section The outlet of stream valve 203 is connect with flash evaporation liquid outlet and 202 entrance of second throttle respectively.
As shown in Figure 1, the outlet of the 9th solenoid valve 99 is connect with 95 entrance of the 5th solenoid valve simultaneously, the outlet of the 5th solenoid valve 95 It is connect simultaneously with the outlet inside heat exchanger A and gas-liquid separator entrance.
As shown in Figure 1, the outlet inside heat exchanger B is connect with 98 entrance of the 8th solenoid valve simultaneously, the outlet of the 8th solenoid valve 98 It is connect respectively with outside heat exchanger exit.
As shown in Figure 1, the water outlet of the first water pump 40 is connect with plate heat exchanger (i.e. third heat exchanger 6) water side-entrance, Plate heat exchanger water side outlet is connect with Battery case water inlet, and Battery case water outlet is connect with the end triple valve A, triple valve B End is connect with radiator B (the first radiator 41) entrance, and the outlet radiator B is connect with the water inlet of the first water pump 40.Triple valve C End is connect with the water inlet of the first water pump 40.
As shown in Figure 1, wherein the 1st coolant circulation system is by the first water pump 40, plate heat exchanger, Battery case, three Water-through valve and radiator B composition.
As shown in Figure 1, wherein the 1st coolant circulation system is by the second water pump 306, charger 301, controller 302, drive Dynamic motor 303 and the second radiator 304 (i.e. radiator A) composition.
As shown in Figure 1, the water outlet of the second water pump 306 successively passes through dissipating around charger, controller and driving motor Heat space is connect with the entrance of radiator A, and the outlet of radiator A is connect with the water inlet of the second water pump 306.
As shown in Figure 1, outside heat exchanger, radiator A and radiator B pass through condensation fan and vehicle external environment is changed Heat.
As shown in Figure 1, inside heat exchanger A and inside heat exchanger B are located in HVAC air-conditioning box 102, pass through air door and wind The switching in road can distribute the AIR Proportional by two heat exchangers.
The present invention also provides a kind of control methods of heat pump air conditioning system, use preceding described in any item heat pump air conditioner systems System, to car freezed and heated between switching control, and to the switching control that battery is cooled and heated.This hair It is bright that the first inside heat exchanger is enabled to be used to independently carry out refrigeration to car, so that the second inside heat exchanger is for independent Car is heated, can car be heated or be freezed according to actual needs, improves comfort, and pass through setting the One cooling circuit and the both ends that the third heat exchanger in the first cooling circuit can be parallel-connected to the first inside heat exchanger, energy Enough freezed by refrigerant to the first coolant liquid in third heat exchanger, and then refrigeration cooling effect is carried out to battery, also Third heat exchanger can be parallel-connected to the both ends of the second inside heat exchanger, it can be by refrigerant in third heat exchanger One coolant liquid is heated, and then carries out heating thermogenic action to battery, so as to as needed to battery carry out it is cooling or Heating meets the temperature control needs of battery, therefore can also ensure electricity while guaranteeing that interior space comfort requires The high efficient and reliable of each main component of electrical automobile especially battery is run;
It can be freezed or be heated according to the demand of user, interior space is made to remain comfortable temperature, heat Cooling and heating for battery pack in management system can be by heat pump air conditioning system cooling and heating come real to coolant liquid It is existing, than in the mode for heating battery pack with PTC electric heating, comprehensive energy efficiency ratio is higher, the heat pump air conditioner in heat management system System and coolant circulation system can realize crew module's heating cooling function of battery pack simultaneously by the control to solenoid valve Can, heat pump air conditioning system in heat management system can by the control to solenoid valve, crew module's multi-temperature zone independence temperature controlling function, Without additionally increasing PTC electric heating, save the cost improves safety coefficient simultaneously.
Preferably,
When simultaneously including the first solenoid valve 91, second solenoid valve 92, third solenoid valve 93, the 94, the 5th electricity of the 4th solenoid valve Magnet valve 95, the 6th solenoid valve 96, the 7th solenoid valve 97, the 8th solenoid valve 98 and the 9th solenoid valve 99 and triple valve 42 When:
And when outdoor temperature is greater than the first preset temperature and when less than the second preset temperature, judgement needs to freeze to crew module And underload cooling is carried out to battery, first solenoid valve 91, the second solenoid valve 92, the 4th electricity are opened in control The third solenoid valve 93, the 5th electricity are closed in magnet valve 94, the 6th solenoid valve 96 and the 8th solenoid valve 98, control Magnet valve 95, the 7th solenoid valve 97 and the 9th solenoid valve 99, first inside heat exchanger 31 freeze, in described second Side heat exchanger 32 heats, and the third heat exchanger 6 does not exchange heat, controls the triple valve 42 and first radiator 41 is connect Lead to, battery is cooled down by first radiator 41.
This is that (underload refers to that the heat of battery is greater than the first preset value and small for interior refrigeration of the invention and battery underload In the second preset value, the second preset value is greater than the first preset value) cool down the preferred control mode to radiate, crew module's refrigeration+battery Cooling (underload) modular system operation logic: it is not high in outside temperature and under operating condition that crew module needs to freeze, battery pack is logical Supercooling fluid circulation is cooling, and heat management system runs cooling (underload) mode of crew module's refrigeration+battery, specific as follows:
As shown in Fig. 2, the first solenoid valve 91, second solenoid valve 92, the 4th solenoid valve 94, the 6th solenoid valve 96 and the 8th electricity Magnet valve 98 is opened, and third solenoid valve 93, the 5th solenoid valve 95, the 7th solenoid valve 97 and the 9th solenoid valve 99 are closed, triple valve 42 AB termination it is logical.
As shown in Fig. 2, the exhaust of compressor high temperature and pressure is respectively by the first solenoid valve 91 and second solenoid valve 92 outside Side heat exchanger and inside heat exchanger B (the second inside heat exchanger 32), exothermic condensation become high-pressure sub-cooled liquid, then converge entrance First throttle valve 201 throttles, and becomes the middle pressure steam of gas-liquid two-phase, and gas returns to compressor tonifying Qi by the 4th solenoid valve 94 Mouthful, liquid enters the throttling of second throttle 202, becomes the low-pressure steam of gas-liquid two-phase, into (the first inside inside heat exchanger A Heat exchanger 31) heat absorption evaporation, become the low-pressure gas of overheat, compressor air suction mouth is returned to by gas-liquid separator, completes 1 with this A crew module's refrigeration cycle.
As shown in Fig. 2, HVAC air-conditioning box by the switching distribution in air door and air duct by the inside heat exchanger A of high temperature and The AIR Proportional of the inside heat exchanger B of low temperature, so that the air of different temperatures is blended, by the air delivery of different temperatures to not Same air outlet realizes crew module's multi-temperature zone independence temperature controlling function.
As shown in Fig. 2, the coolant liquid of low temperature is pumped into Battery case by the first water pump 40, keep battery cooling, from Battery case High temperature coolant out enters radiator B (third heat exchanger 6) to vehicle external environment heat release by T-way water valve, becomes low temperature cold But liquid returns to the first water pump 40, completes 1 battery cooling cycle with this.
As shown in Fig. 2, the second water pump 306 by the coolant liquid of low temperature be successively pumped into charger, controller and driving motor into Row cooling, high temperature coolant out enter radiator A to vehicle external environment heat release, become cryogenic liquid, return to the second water pump 306,1 electric control system cooling cycle is completed with this.
Preferably,
When simultaneously including the first solenoid valve 91, second solenoid valve 92, third solenoid valve 93, the 94, the 5th electricity of the 4th solenoid valve Magnet valve 95, the 6th solenoid valve 96, the 7th solenoid valve 97, the 8th solenoid valve 98 and the 9th solenoid valve 99 and triple valve 42 When:
And when outdoor temperature is greater than the second preset temperature, judgement needs to freeze to crew module and carry out to battery high negative Lotus is cooling, and first solenoid valve 91, the second solenoid valve 92, the 4th solenoid valve 94, the 5th electricity are opened in control The third solenoid valve 93, the 7th electricity are closed in magnet valve 95, the 6th solenoid valve 96 and the 8th solenoid valve 98, control Magnet valve 97 and the 9th solenoid valve 99, the refrigeration of first inside heat exchanger 31, second inside heat exchanger 32 heat, institute The heat exchange of third heat exchanger 6 is stated, the triple valve 42 is controlled and first radiator 41 is disconnected, by the third heat exchanger Battery is cooled down.
This is that interior refrigeration and battery high load capacity (high load capacity refers to that the heat of battery is greater than the second preset value) of the invention are cold But the preferred control mode to radiate, cooling (high load capacity) the modular system operation logic of crew module's refrigeration+battery: outside temperature compared with It is high and under operating condition that crew module needs to freeze, battery pack needs to be cooled down by the low temperature refrigerant in heat pump system, heat management System runs cooling (high load capacity) mode of crew module's refrigeration+battery, specific as follows:
As shown in figure 3, the first solenoid valve 91, second solenoid valve 92, the 4th solenoid valve 94, the 95, the 6th electricity of the 5th solenoid valve Magnet valve 96 and the 8th solenoid valve 98 are opened, and third solenoid valve 93, the 7th solenoid valve 97 and the 9th solenoid valve 99 are closed, triple valve 42 AC termination it is logical.
As shown in figure 3, the exhaust of compressor high temperature and pressure is respectively by the first solenoid valve 91 and second solenoid valve 92 outside Side heat exchanger and inside heat exchanger B (the second inside heat exchanger 32), exothermic condensation become high-pressure sub-cooled liquid, then converge entrance First throttle valve 201 throttles, and becomes the middle pressure steam of gas-liquid two-phase, and gas returns to compressor tonifying Qi by the 4th solenoid valve 94 Mouthful, liquid respectively enters second throttle 202 and third throttle valve 203 and throttles, become the low-pressure steam of gas-liquid two-phase, respectively into Enter inside heat exchanger A (the first inside heat exchanger 31) and plate heat exchanger (third heat exchanger 6) heat absorption evaporation, becomes the low of overheat It calms the anger body, compressor air suction mouth is returned to by gas-liquid separator, 1 crew module's refrigeration cycle is completed with this.
As shown in figure 3, HVAC air-conditioning box by the switching distribution in air door and air duct by the inside heat exchanger A of high temperature and The AIR Proportional of the inside heat exchanger B of low temperature, so that the air of different temperatures is blended, by the air delivery of different temperatures to not Same air outlet realizes crew module's multi-temperature zone independence temperature controlling function.
As shown in figure 3, the coolant liquid of high temperature is pumped into plate heat exchanger by the first water pump 40, the low temperature cold in plate heat exchanger Coolant liquid is cooled to low temperature by matchmaker, and cryogenic liquid enters Battery case to battery cooling, and the high temperature come out from Battery case is cold But liquid returns to the first water pump 40, completes 1 battery cooling cycle with this.
As shown in figure 3, the second water pump 306 by the coolant liquid of low temperature be successively pumped into charger, controller and driving motor into Row cooling, high temperature coolant out enter radiator A to vehicle external environment heat release, become cryogenic liquid, return to the second water pump 306,1 electric control system cooling cycle is completed with this.
Preferably,
When simultaneously including the first solenoid valve 91, second solenoid valve 92, third solenoid valve 93, the 94, the 5th electricity of the 4th solenoid valve Magnet valve 95, the 6th solenoid valve 96, the 7th solenoid valve 97, the 8th solenoid valve 98 and the 9th solenoid valve 99 and triple valve 42 When:
When outdoor temperature is less than the first preset temperature, judgement needs to heat crew module and heat battery, The second solenoid valve 92, the third solenoid valve 93, the 4th solenoid valve 94,97 and of the 7th solenoid valve are opened in control First solenoid valve 91, the 5th solenoid valve 95,96 and of the 6th solenoid valve are closed in 9th solenoid valve 99, control 8th solenoid valve 98, first inside heat exchanger 31 does not exchange heat, second inside heat exchanger 32 heats, the third Heat exchanger 6 exchanges heat, control the triple valve 42 first radiator 41 is disconnected, by the third heat exchanger to battery It is heated.
This is the preferred control mode of interior heating and battery heating of the invention, 3, crew module's heating+battery heated mould Formula system operation logic: when outside temperature is very low, crew module needs to heat, and battery pack is also required to heat, heat management system fortune Row crew module heating+battery-heated model, specific as follows:
As shown in figure 4, second solenoid valve 92, third solenoid valve 93, the 4th solenoid valve 94, the 7th solenoid valve 97 and described Nine solenoid valves 99 are opened, the first solenoid valve 91, the 5th solenoid valve 95, the 6th solenoid valve 96 and the 8th solenoid valve 98 close, and the AC termination of triple valve 42 is logical.
As shown in figure 4, second solenoid valve 92 is passed through in the exhaust of compressor high temperature and pressure, a part enters inside heat exchanger B and puts Heat condensation becomes high-pressure sub-cooled liquid, is the middle pressure steam of gas-liquid two-phase using the throttling of second throttle 202;Another part is logical It crosses the 9th solenoid valve 99 and enters plate heat exchanger exothermic condensation as high-pressure sub-cooled liquid, throttle using third throttle valve 203 For the middle pressure steam of gas-liquid two-phase, then converging into flash evaporation, gas returns to compressor gas supplementing opening by the 4th solenoid valve 94, Liquid enters the throttling of first throttle valve 201, becomes the low-pressure steam of gas-liquid two-phase, absorbs heat and evaporates into outside heat exchanger, becomes The low-pressure gas of overheat returns to compressor air suction mouth by third solenoid valve 93 and gas-liquid separator, completes 1 crew module with this Heating circulation.
As shown in figure 4, the coolant liquid of low temperature is pumped into plate heat exchanger by the first water pump 40, the high temperature in plate heat exchanger is cold Coolant liquid is heated to be high temperature by matchmaker, and high temperature coolant enters Battery case and heats to battery, the low temperature cold come out from Battery case But liquid returns to the first water pump 40, completes 1 battery heat cycles with this.
Preferably,
When simultaneously including the first solenoid valve 91, second solenoid valve 92, third solenoid valve 93, the 94, the 5th electricity of the 4th solenoid valve Magnet valve 95, the 6th solenoid valve 96, the 7th solenoid valve 97, the 8th solenoid valve 98 and the 9th solenoid valve 99 and triple valve 42 When:
When outdoor temperature is less than the first preset temperature and big battery-heating amount, judgement need to crew module heat and Battery is cooled down, the second solenoid valve 92, the third solenoid valve 93, the 4th solenoid valve 94 and institute are opened in control The 7th solenoid valve 97 is stated, first solenoid valve 91, the 5th solenoid valve 95, the 6th solenoid valve 96, institute are closed in control The 8th solenoid valve 98 and the 9th solenoid valve 99 are stated, first inside heat exchanger 31 does not exchange heat, second inside exchanges heat Device 32 heats, and the third heat exchanger 6 does not exchange heat, and controls the triple valve 42 and first radiator 41 is made to connect, pass through First radiator cools down battery.
This is the cooling preferred control mode of interior heating and battery of the invention, 4, the cooling mould of crew module's heating+battery Formula system operation logic
When in outside temperature, lower but automobile is chronically under the working conditions of high-discharge-rates such as climbing, crew module needs Heating, and battery pack needs to cool down, heat management system runs crew module's heating+battery refrigerating mode, specific as follows:
As shown in figure 5, second solenoid valve 92, the third solenoid valve 93, the 4th solenoid valve 94 and the 7th electricity Magnet valve 97 is opened, the first solenoid valve 91, the 5th solenoid valve 95, the 6th solenoid valve 96,98 and of the 8th solenoid valve 9th solenoid valve 99 is closed, and the AB termination of triple valve 42 is logical.
As shown in figure 5, second solenoid valve 92 is passed through in the exhaust of compressor high temperature and pressure, into inside heat exchanger B exothermic condensation As high-pressure sub-cooled liquid, enter flash evaporation, gas warp using the middle pressure steam that the throttling of second throttle 202 is gas-liquid two-phase It crosses the 4th solenoid valve 94 and returns to compressor gas supplementing opening, liquid enters the throttling of first throttle valve 201, and the low pressure for becoming gas-liquid two-phase is steamed Vapour absorbs heat into outside heat exchanger and evaporates, becomes the low-pressure gas of overheat, returned to by third solenoid valve 93 and gas-liquid separator Compressor air suction mouth completes 1 crew module with this and heats circulation.
As shown in figure 5, the coolant liquid of low temperature is pumped into Battery case by the first water pump 40, keep battery cooling, from Battery case High temperature coolant out enters radiator B to vehicle external environment heat release by T-way water valve, becomes cryogenic liquid, returns to first Water pump 40 completes 1 battery cooling cycle with this.
The present invention also provides a kind of automobile (preferably electric cars) comprising preceding described in any item heat pump air conditioner systems System.It is independent to car progress refrigeration that the present invention enables to the first inside heat exchanger to be used to, so that the second inside heat exchanger Car is heated for independence, can car be heated or be freezed according to actual needs, comfort, and energy are improved Enough freezed by refrigerant to the first coolant liquid in third heat exchanger, and then refrigeration cooling effect, energy are carried out to battery Enough the first coolant liquid in third heat exchanger is heated by refrigerant, and then heating thermogenic action is carried out to battery, from And can battery be cooled down or be heated as needed, meet the temperature control needs of battery, therefore can guarantee interior Space comfort also ensures the high efficient and reliable operation of each main component of electric car especially battery while requirement;
It can be freezed or be heated according to the demand of user, interior space is made to remain comfortable temperature, heat Cooling and heating for battery pack in management system can be by heat pump air conditioning system cooling and heating come real to coolant liquid It is existing, than in the mode for heating battery pack with PTC electric heating, comprehensive energy efficiency ratio is higher, the heat pump air conditioner in heat management system System and coolant circulation system can realize crew module's heating cooling function of battery pack simultaneously by the control to solenoid valve Can, heat pump air conditioning system in heat management system can by the control to solenoid valve, crew module's multi-temperature zone independence temperature controlling function, Without additionally increasing PTC electric heating, save the cost improves safety coefficient simultaneously.
The present invention provides a kind of electric car integrated thermal management system, main comprising carrying out temperature adjustment to interior space Heat pump air conditioning system and the coolant circulation system that temperature adjustment is carried out to driving motor, battery pack, control module etc., heat pump air conditioner system System and coolant circulation system can by the control to solenoid valve, realize heat pump air conditioning system cooled and heated to battery pack, Heat pump air conditioning system is heated to battery pack, crew module heats battery pack cooling simultaneously and crew module's multi-temperature zone independence temperature control function Energy.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.With It is only the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not Under the premise of being detached from the technology of the present invention principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this The protection scope of invention.

Claims (18)

1. a kind of heat pump air conditioning system, it is characterised in that: include:
Compressor (1), outside heat exchanger (2), the first inside heat exchanger (31) and the second inside heat exchanger (32), in described first Side heat exchanger (31) can carry out absorption refrigeration to car, and second inside heat exchanger (32) can carry out heat release system to car Heat;
Further include the first cooling circuit (4), the first coolant liquid is flowed in first cooling circuit (4), described first cools back Battery case (5) and third heat exchanger (6) are provided on road (4), the third heat exchanger (6) can be arranged in parallel described The both ends of one inside heat exchanger (31), to be cooled down by refrigerant to the first coolant liquid in the third heat exchanger (6) It is cooling, to be cooled down to battery;The third heat exchanger (6) can also be arranged in parallel in second inside heat exchanger (32) Both ends, to carry out heating heating to coolant liquid by refrigerant in the third heat exchanger (6), to add to battery Heat.
2. heat pump air conditioning system according to claim 1, it is characterised in that:
The compressor (1), the outside heat exchanger (2) and first inside heat exchanger (31) connect and are linked to be refrigeration and lead back Road (7), and line segments (8) locating for first inside heat exchanger (31) have and are connected with the suction end of the compressor (1) First end (81) and the second end (82) being connected with the outside heat exchanger (2), and the 6th is provided on the line segments (8) The third end (21) of solenoid valve (96), the outside heat exchanger (2) is connected with the exhaust end of the compressor (1), the outside 4th end (22) of heat exchanger (2) is connected with the second end (82) of the line segments (8).
3. heat pump air conditioning system according to claim 2, it is characterised in that:
Branch where second inside heat exchanger (32) is the first branch (11), and the 5th end of the first branch (11) (111) it is connect by second branch (12) with the exhaust end of the compressor (1), the 6th end of the first branch (11) (112) it is connect by third branch (13) with the second end (82) of the line segments (8), and in the second branch (12) It is provided with second solenoid valve (92), is provided with the 7th solenoid valve (97) on the third branch (13).
4. heat pump air conditioning system according to claim 3, it is characterised in that:
The 6th end (112) of the first branch (11) also passes through the 4th branch (14) and the outside heat exchanger (2) 4th end (22) is connected, and is additionally provided with the 8th solenoid valve (98) on the 4th branch (14).
5. heat pump air conditioning system according to claim 3, it is characterised in that:
Refrigerant branch where the third heat exchanger (6) is the 5th branch (15), and the 7th of the 5th branch (15) End (151) is connect with the second end (82) of the line segments (8), and the 8th end (152) of the 5th branch (15) passes through 6th branch (16) is connect with the first end (81) of the line segments (8), is provided with the 5th on the 6th branch (16) Solenoid valve (95), the 8th end (152) of the 5th branch (15) also pass through the 7th branch (17) and the second branch (12) It connects, is provided with the 9th solenoid valve (99) on the 7th branch (17).
6. heat pump air conditioning system according to claim 2, it is characterised in that:
The third end (21) of the outside heat exchanger (2) also passes through the suction end phase of the 8th branch (18) and the compressor (1) Even, it and is provided with third solenoid valve (93) on the 8th branch (18), and/or is located at institute on the refrigeration major loop (7) The position for stating the exhaust end of compressor (1) is additionally provided with the first solenoid valve (91).
7. heat pump air conditioning system according to claim 5, it is characterised in that:
It further include flash evaporation (10) of the setting on refrigeration major loop (7), and the tonifying Qi end of the flash evaporation passes through the 9th Branch (19) is connected to the tonifying Qi end of the compressor (1), and is provided with the 4th solenoid valve (94) on the 9th branch (19), It is located between the 4th end (22) and the flash evaporation (10) of the outside heat exchanger (2) on refrigeration major loop (7) It is additionally provided with first throttle valve (201), first inside heat exchanger (31) and the sudden strain of a muscle is located on the refrigeration major loop (7) It is additionally provided with second throttle (202) between hair device (10), the 7th end (151) and institute is located on the 5th branch (15) It states and is additionally provided with third throttle valve (203) between third heat exchanger (6).
8. heat pump air conditioning system described in any one of -7 according to claim 1, it is characterised in that:
The first radiator (41) are additionally provided on first cooling circuit (4), the first coolant liquid is enabled to flow through described When one radiator (41), cooling effect can be carried out by cooling, and then to battery;
It is additionally provided with triple valve (42) on first cooling circuit (4), enables to the Battery case (5) with described One radiator (41) connects and switches over control between first radiator (41) disconnection.
9. heat pump air conditioning system according to claim 8, it is characterised in that:
First coolant liquid is water, is additionally provided with the first water pump (40) on first cooling circuit (4).
10. heat pump air conditioning system according to claim 1 to 9, it is characterised in that:
Further include the second cooling circuit (300), is provided with charger (301), controller on second cooling circuit (300) (302) at least structure and in driving motor (303), second cooling circuit (300) is middle to flow the first coolant liquid, and institute It states and is additionally provided with the second radiator (304) on the second cooling circuit (300), enable to the second coolant liquid to flow through described second and dissipate When hot device (304), can by cooling, and then in charger (301), controller (302) and driving motor (303) extremely A few structure cools down.
11. heat pump air conditioning system according to claim 10, it is characterised in that:
When simultaneously including the second radiator (304), the first radiator (41) and outside heat exchanger (2): further including condensation fan (305), the condensation fan (305) can be simultaneously to second radiator (304), first radiator (41) and described Outside heat exchanger (2) carries out air draught or blowing.
12. heat pump air conditioning system according to claim 10, it is characterised in that:
Second coolant liquid is water, is provided with the second water pump (306) on second cooling circuit (300).
13. a kind of control method of heat pump air conditioning system, it is characterised in that: use the heat of any of claims 1-12 Pump air conditioner system, to car freezed and heated between switching control, and to the switching that battery is cooled and heated Control.
14. control method according to claim 13, it is characterised in that:
When simultaneously including the first solenoid valve (91), second solenoid valve (92), third solenoid valve (93), the 4th solenoid valve (94), the Five solenoid valves (95), the 6th solenoid valve (96), the 7th solenoid valve (97), the 8th solenoid valve (98) and the 9th solenoid valve (99) And when triple valve (42):
And when outdoor temperature is greater than the first preset temperature and when less than the second preset temperature, judgement need to freeze to crew module and Underload cooling is carried out to battery, first solenoid valve (91), the second solenoid valve (92), the 4th electricity are opened in control The third solenoid valve (93), institute are closed in magnet valve (94), the 6th solenoid valve (96) and the 8th solenoid valve (98), control State the 5th solenoid valve (95), the 7th solenoid valve (97) and the 9th solenoid valve (99), first inside heat exchanger (31) refrigeration, second inside heat exchanger (32) heating, the third heat exchanger (6) do not exchange heat, and control the triple valve (42) it is switched on first radiator (41), battery is cooled down by first radiator (41).
15. control method according to claim 13, it is characterised in that:
When simultaneously including the first solenoid valve (91), second solenoid valve (92), third solenoid valve (93), the 4th solenoid valve (94), the Five solenoid valves (95), the 6th solenoid valve (96), the 7th solenoid valve (97), the 8th solenoid valve (98) and the 9th solenoid valve (99) And when triple valve (42):
And when outdoor temperature is greater than the second preset temperature, judgement needs to carry out high load capacity to crew module's refrigeration and to battery cold But, first solenoid valve (91), the second solenoid valve (92), the 4th solenoid valve (94), the described 5th are opened in control Solenoid valve (95), the 6th solenoid valve (96) and the 8th solenoid valve (98), the control closing third solenoid valve (93), 7th solenoid valve (97) and the 9th solenoid valve (99), first inside heat exchanger (31) freeze, in described second Side heat exchanger (32) heating, third heat exchanger (6) heat exchange, controls the triple valve (42) and makes first radiator (41) it disconnects, battery is cooled down by the third heat exchanger.
16. control method according to claim 13, it is characterised in that:
When simultaneously including the first solenoid valve (91), second solenoid valve (92), third solenoid valve (93), the 4th solenoid valve (94), the Five solenoid valves (95), the 6th solenoid valve (96), the 7th solenoid valve (97), the 8th solenoid valve (98) and the 9th solenoid valve (99) And when triple valve (42):
When outdoor temperature is less than the first preset temperature, judgement needs to heat crew module and heat battery, controls Open the second solenoid valve (92), the third solenoid valve (93), the 4th solenoid valve (94), the 7th solenoid valve (97) and the 9th solenoid valve (99), first solenoid valve (91), the 5th solenoid valve (95), described the are closed in control Six solenoid valves (96) and the 8th solenoid valve (98), first inside heat exchanger (31) does not exchange heat, second inside is changed Hot device (32) heating, third heat exchanger (6) heat exchange control the triple valve (42) and make first radiator (41) disconnected It opens, battery is heated by the third heat exchanger.
17. control method according to claim 13, it is characterised in that:
When simultaneously including the first solenoid valve (91), second solenoid valve (92), third solenoid valve (93), the 4th solenoid valve (94), the Five solenoid valves (95), the 6th solenoid valve (96), the 7th solenoid valve (97), the 8th solenoid valve (98) and the 9th solenoid valve (99) And when triple valve (42):
When outdoor temperature is less than the first preset temperature and big battery-heating amount, judgement needs to heat crew module and to electricity Pond is cooled down, control open the second solenoid valve (92), the third solenoid valve (93), the 4th solenoid valve (94) and First solenoid valve (91), the 5th solenoid valve (95), the 6th electromagnetism are closed in 7th solenoid valve (97), control Valve (96), the 8th solenoid valve (98) and the 9th solenoid valve (99), first inside heat exchanger (31) do not exchange heat, institute The heating of the second inside heat exchanger (32) is stated, the third heat exchanger (6) do not exchange heat, and controls the triple valve (42) and makes described the One radiator (41) is connected, is cooled down by first radiator to battery.
18. a kind of automobile, it is characterised in that: including heat pump air conditioning system of any of claims 1-12.
CN201811278492.5A 2018-10-30 2018-10-30 A kind of heat pump air conditioning system and its control method and automobile Pending CN109466273A (en)

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