CN107972514A - Electric car water-cooled heat management system and its method of work - Google Patents
Electric car water-cooled heat management system and its method of work Download PDFInfo
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- CN107972514A CN107972514A CN201711241102.2A CN201711241102A CN107972514A CN 107972514 A CN107972514 A CN 107972514A CN 201711241102 A CN201711241102 A CN 201711241102A CN 107972514 A CN107972514 A CN 107972514A
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- Prior art keywords
- water
- temperature regulating
- battery pack
- management system
- electric car
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a kind of electric car water-cooled heat management system, including driving motor cooling circuit, battery pack temperature regulating circuit, air-conditioner temperature regulating loop；Crew module's heater (24) is equipped with the HAVC (21) of the air-conditioner temperature regulating loop, crew module's heater (24) is connected with crew module (23).The invention also discloses the method for work of above-described heat management system.Using above-mentioned technical proposal, on the premise of ensureing that systemic-function does not reduce, solve the problems, such as to install on production line, fill, and be effectively reduced the failure rate of whole heat management system；The electric car hot-pipe system of exploitation and volume production on traditional vehicle platform is more suitable for, arrangement form is novel, simple in structure；Realize under condition of different temperatures, electric car can work normally, and expand the use scope of electric car.
Description
Technical field
The invention belongs to vehicle technology field.A kind of more particularly it relates to electric car water-cooled heat management system
System.In addition, the method for work the invention further relates to the heat management system.
Background technology
Pure electric vehicle adds the new energy resources systems such as battery pack, driving motor, retarder compared with orthodox car, eliminates
The legacy device such as engine and gearbox.Newly-increased requirement of the component to operating temperature is very stringent.To ensure that system is in efficient
Work under safe condition, electric car needs special heat management system newly developed.
In the prior art, battery pouring-basket cooling system common scheme is：It is water-cooled, air-cooled.Battery pack heats common scheme
It is：Water cooling is board-like, heating membrane type.The common scheme of air-conditioning heating system is：Cross water PTC formulas, resistance wire type.Air conditioner cooling system
Realized by electric compressor.The pure electric vehicle vehicle of in the market, which uses, need to additionally increase a radiator and to preceding during water-cooling project
End module is modified and can not realize the heating function to battery pack.Vehicle is whole under limiting temperature to the bad adaptability of environment
Car can not work normally.
Chery Automobiles company integrates above-mentioned subsystem scheme within 2015, completely newly develops a set of vehicle thermal management scheme.Should
The function that battery pack cooling heating is combined with air-conditioning cooling heating is realized in scheme.Scheme contains all five subsystems
System：Drive electromotor cooling system, battery pack heating system, battery pouring-basket cooling system, air conditioner cooling system, air-conditioning heating system.
Interrelated between four subsystems after wherein, during a system operation, remaining system is all in closed mode.
The water-cooled thermal management scheme is more suitable for brand-new electric car platform.Pure electric vehicle is restructured on the basis of traditional vehicle
When, there are certain defect for this scheme.Such as：Three waterway electromagnetic valve opened loop controls, can not monitor；Motion device is more, and failure rate is big；
Pipeline is complicated, and when being produced on small line, there are problem for filling exhaust；The high station process in chassis increases, traditional vehicle production line beat pressure
Power is big.
The content of the invention
The present invention provides a kind of electric car water-cooled heat management system, and the purpose is to reduce the failure of whole heat management system
Rate.
To achieve these goals, the technical solution taken of the present invention is：
The electric car water-cooled heat management system of the present invention, including driving motor cooling circuit, battery pack temperature adjustment are returned
Road, air-conditioner temperature regulating loop, are equipped with crew module's heater, described multiplies in the HAVC of the air-conditioner temperature regulating loop
Member cabin heater is connected with crew module.
Setting order of the device on circulation line in the air-conditioner temperature regulating loop is electric compressor, condensation
Device, the first refrigerant solenoid valve, HAVC；The HAVC is additionally provided with evaporator.
The battery pack temperature regulating circuit uses water circulation pipe；Heat is equipped with battery pack temperature regulating circuit to hand over
Parallel operation and excessively water PTC；The exchange piece of the heat exchanger is connected with air-conditioner temperature regulating loop.
The setting order of device in the battery pack temperature regulating circuit on water circulation pipe is the second expansion tank,
Chiller, the second water pump, cross water PTC, battery pack.
The driving motor cooling circuit uses independent water circulation pipe, is set successively in motor cooling circuit is driven
There are the first expansion tank, the first water pump, electric machine controller → motor reducer and radiator.
It is in parallel with the HAVC on the battery pack temperature regulating circuit, it is additionally provided with a branch, the heat friendship
The exchange piece of parallel operation is arranged on the branch；The second refrigerant solenoid valve is additionally provided with the branch.
In order to realize the goal of the invention identical with above-mentioned technical proposal, present invention also offers above-described electric car water
The method of work of cold type heat management system, its technical solution are：
1st, when the first refrigerant solenoid valve is in opening, the second refrigerant solenoid valve is closed, then only air-conditioning
Temperature regulating circuit works；
2nd, when battery pack temperature regulating circuit is in refrigeration work state, the electric compressor of air-conditioner temperature regulating loop must
Must work；When first refrigerant solenoid valve is in opening, the second refrigerant solenoid valve is also at opening, then air-conditioner temperature tune
Section circuit and battery pack temperature regulating circuit work at the same time；The power distribution of electric compressor depends on the resistance in two circuits；
3rd, when battery pack temperature regulating circuit is in heating work state, the electric compressor of air-conditioner temperature regulating loop must
It must be stopped；At this time, electric compressor is closed, and heat exchanger is in work without heat exchange, the second water pump
State, crosses water PTC and is in the working status being powered；Water route in battery pack keeps clear.
The present invention uses above-mentioned technical proposal, on the premise of ensureing that systemic-function does not reduce, solves installation on production line, adds
The problem of note, and it is effectively reduced the failure rate of whole heat management system；It is more suitable for exploitation and volume production on traditional vehicle platform
Electric car hot-pipe system, arrangement form is novel, simple in structure；Realize under condition of different temperatures, electric car being capable of normal work
Make, expand the use scope of electric car.
Brief description of the drawings
Content shown in attached drawing and the mark in figure are briefly described as follows：
Fig. 1 is the structure diagram of electrombile thermal management system of the present invention；
Fig. 2 is the three-dimensional shape schematic diagram of electrombile thermal management system of the present invention；
Fig. 3 is the driving motor cooling circuit structure diagram in the present invention；
Fig. 4 is the battery heating circuit structure diagram in the present invention；
Fig. 5 is the battery cooling circuit structure diagram in the present invention；
Fig. 6 is crew module's refrigerating circuit structure diagram in the present invention；
Fig. 7 was the partial structural diagram at water PTC (heater) position；
Fig. 8 is the partial view of structure shown in Fig. 7；
Fig. 9 is the partial view of structure shown in Fig. 7；
Figure 10 is the partial structural diagram at chiller (heat exchanger) position；
Figure 11 is the partial structural diagram at air compressor machine position；
Figure 12 is the partial structural diagram at 1/2 position of expansion tank；
Figure 13 is the partial structural diagram at 1/2 position of water pump；
Figure 14 is the scheme of installation of the first water pump in Figure 13；
Figure 15 is the scheme of installation of the second water pump in Figure 13；
Figure 16 is the partial structural diagram at 1/2 position of refrigerant solenoid valve.
Mark in figure is：
1st, the first expansion tank, the 2, first water pump, 3, electric compressor, 4, heat exchanger (chiller), the 5, first refrigerant electricity
Magnet valve, the 6, second refrigerant solenoid valve, 7, cross water PTC (heater), the 8, second water pump, the 9, second expansion tank, 10, front deck crossbeam,
11st, radiator, 12, charger, 13, electric machine controller (MCU), 14, driving motor, 15, storage battery, 16, evaporator, 17, electricity
Chi Bao, 18, left mounting bracket, 19, motor reducer, 20, vacuum booster, 21, HAVC (i.e. heating ventilation and air adjustment),
22nd, condenser, 23, crew module, 24, crew module's heater.
Embodiment
Below against attached drawing, by the description of the embodiment, making to embodiment of the invention further details of
Illustrate, to help those skilled in the art to have more complete, accurate and deep reason to inventive concept of the invention, technical solution
Solution.
Expressed structure of the invention as shown in Figure 1, Figure 2, is a kind of electric car water-cooled heat management system, including driving electricity
Machine cooling circuit, battery pack temperature regulating circuit (including battery pack cooling subsystem, battery pack heating subsystem), air-conditioner temperature
Regulating loop (including air-conditioning cooling subsystem, air-conditioning heating subsystem), is the optimization to existing electrombile thermal management system
Improve, it is therefore an objective on the premise of ensureing that systemic-function is constant, improve the assembling, filling, malfunction rate of heat management system；Realize
Electric car can work normally under condition of different temperatures, expand the using area of electric car.
The defects of in order to overcome the prior art, realize the goal of the invention for the failure rate for reducing whole heat management system, this hair
The bright technical solution taken is：
As shown in Fig. 1 to Figure 16, electric car water-cooled heat management system of the invention, is adjusted back in the air-conditioner temperature
Crew module's heater 24 is equipped with the HAVC21 on road, crew module's heater 24 is connected with crew module 23.
Increase crew module heater 24, is heated using PTC, for 23 heating of crew module in HAVC21.
The present invention eliminates HAVC heating circuits on the basis of original five sets of circuits；Retain the cooling of driving motor, battery
Bag cooling, battery pack heating, air-conditioning cooling circuit.Air-conditioning heating subsystem by increasing PTC in HAVC21, realize with it is other
System is separate, is independent of each other.
The setting order of device in the air-conditioner temperature regulating loop on circulation line is electric compressor 3, cold
Condenser 22, the first refrigerant solenoid valve 5, HAVC21；The HAVC21 is additionally provided with evaporator 16.
As shown in Fig. 1, Fig. 6, air conditioner cooling system circulates in the following order：
3 → condenser of electric compressor, 22 → the first 5 → HAVC21 of refrigerant solenoid valve → electric compressor 3.
When air conditioner cooling system works, electric compressor 3 is in running order, and the first refrigerant solenoid valve 5 is in opening state
State.
There are following two situations for air conditioner cooling system：
1st, when the first refrigerant solenoid valve 5 is in opening, the second refrigerant solenoid valve 6 is closed, then is only had time
Adjust cooling system work.
2nd, when the first refrigerant solenoid valve 5 is in opening, the second refrigerant solenoid valve 6 is also at opening, then air-conditioning
Cooling system and battery pouring-basket cooling system work at the same time, and the power distribution of air compressor machine depends on the system resistance of two systems.
As shown in Figure 1, Figure 3, driving electromotor cooling system circulates in the following order：
First expansion tank, 1 → the first 2 → electric machine controller of water pump, 13 (MCU) → retarder 19 → radiator 11 → the first is swollen
Swell 1.Drive electromotor cooling system separate with other systems, be independent of each other.
As shown in Figure 1 and Figure 2：Wherein battery pack cooling subsystem, air-conditioning heating subsystem as autonomous system and other be
System does not associate.And battery pouring-basket cooling system and air conditioner cooling system are interrelated.
The battery pack temperature regulating circuit uses water circulation pipe；Heat is equipped with battery pack temperature regulating circuit to hand over
Parallel operation 4 and excessively water PTC7；The exchange piece of the heat exchanger 4 is connected with air-conditioner temperature regulating loop.
As shown in Fig. 2, the position for crossing water PTC7 is therefrom adjusted on the right side of front deck by the present invention below passage, battery pack
17 heating and 17 cooling subsystem of battery pack share a set of circuit, are become by the state of heat exchanger 4 (chiller) and heater
Change, realize functional requirement.
Setting order of the device on water circulation pipe in the battery pack temperature regulating circuit is the second expansion tank
9th, heat exchanger 4 (chiller), excessively the second water pump 8, water PTC7, battery pack 17.
Order shown in Fig. 1 is slightly different with the above.
I.e.：Battery pouring-basket cooling system includes the second water pump 8, the second expansion tank 9, excessively heat exchanger 4 (working status), water
PTC7 (off-position)；Cross water PTC7 outlets with 17 water inlet pipe of battery pack to be connected, 8 import of 17 outlet pipe of battery pack and the second water pump
It is connected.
As shown in figure 4, battery pack heating system circulates in the following order：
Second 9 → chiller4 of expansion tank → the second water pump 8 → crosses water PTC7 → 17 → the second expansion tank 9 of battery pack.
When battery pack heating system is in running order, electric compressor 3 is closed, and chiller4 is substantially without warm
Exchange, the second water pump 8 are in running order, cross water PTC7 and are in work (energization) state.Water route in battery pack keeps clear.
By the power on/off to crossing water PTC7, realize the function difference in circuit, be driven by a water pump, the prior art
In three electromagnetic water valves all cancel.
The battery heating system includes system the second water pump 8, the second expansion tank 9, heat exchanger 4 (chiller) (non-work
Make state), cross water PTC, ("on" position)；Cross water PTC7 outlet be connected with 17 water inlet pipe of battery pack, 17 outlet pipe of battery pack and
The import of second water pump 8 is connected.
As shown in figure 5, battery pouring-basket cooling system circulates in the following order：
Second 9 → chiller4 of expansion tank → the second water pump 8 → crosses water PTC7 → 17 → the second expansion tank 9 of battery pack.
When battery pouring-basket cooling system is in running order, electric compressor 3 is in running order, and chiller4 exists obvious
Heat exchange, the second water pump 8 is in running order, cross water PTC7 be in (power-off) state.Water route in battery pack keeps clear.
As shown in Figure 7, Figure 8 and Figure 9：Cross water PTC7 and be arranged in front deck right-hand stringer rear position, 10 rear of front deck crossbeam.
Installed using compound stent.
First support one end is fixed on girder plate, is fixed using three M6 bolts.
Second support one end is connected with water PTC7 excessively to be connected using the screw of four M3.
First support and second support are fixed using three M6 bolts, and ensure instrument assembly space with crossing water PTC7 in itself
Do not interfere.
As shown in Figure 10：
Heat exchanger 4 is arranged in the lower position of front deck crossbeam 10 (centre), and front deck crossbeam is fixed on by transition bracket
On 10, fixed using the fixing point of two M6.During assembling, first heat exchanger 4 is divided on front deck crossbeam 10, refill be fitted on it is whole
Che Shang.
As shown in Figure 10, Figure 11, electric compressor 3 is arranged on the left of front deck.
Electric compressor 3 is fixed by the bracket in the left side of left mounting bracket 18, ensures that 3 center of rotation of air compressor machine is excessively dynamic total
Rotary inertia axis；Moreover, to ensure the assembling of electric compressor 3 and its plug-in unit, left mounting bracket 18 does local avoiding structure.
The driving motor cooling circuit uses independent water circulation pipe, is set successively in motor cooling circuit is driven
There are the first expansion tank 1, the first water pump 2, electric machine controller 13, motor reducer 19 and radiator 11.
First water pump 2 is connected with the outlet pipe of the first expansion tank 1 and the water inlet pipe of driving motor 14.
It is in parallel with the HAVC21 on the battery pack temperature regulating circuit, it is additionally provided with a branch, the heat
The exchange piece of exchanger 4 is arranged on the branch；The second refrigerant solenoid valve 6 is additionally provided with the branch.
As shown in Figure 11, Figure 12, whole system uses two expansion tanks altogether.
First expansion tank 1 is arranged on the right side of front deck, serves as the effect of moisturizing.Welding support provides fixation on vehicle body.
Second expansion tank 9 is arranged on the left of vehicle front deck, before the rear of storage battery 15, vacuum booster 20
Side.15 pallet of storage battery is equipped with the stent for being used for fixing the second expansion tank 9, and 9 material of the second expansion tank need to have heat safe
Characteristic.
As shown in Figure 13, Figure 14 and Figure 15：Whole system uses two water pumps altogether.
First water pump 2 is arranged in below front beam (right side), is fixed by the transition bracket of rubber material, using two M6
Bolt, one end connect the first expansion tank 1 outlet pipe, one end connection driving motor 14 water inlet pipe.
Second water pump 8 is arranged in below front deck rear cross beam (right side), except original rubber standoff, increases a metal branch newly
Frame is fixed, and one end of the second water pump 8 is connected with the outlet pipe of heat exchanger 4, and one end is connected with crossing the water inlet of water PTC7.
The model of two water pumps and the rubber standoff of use are identical.
As shown in figure 16, whole system uses two refrigerant solenoid valves altogether.
First refrigerant solenoid valve 5 is arranged on the right side of front deck, between 12 and the 1st expansion tank 1 of charger, is fixed on charging
Above device stent.One end is connected with condensator outlet, and one end is connected with HAVC.
Second refrigerant solenoid valve 6 is arranged in front deck water tank cross beam lower left, and the stent by being set on vehicle body is fixed,
One end is connected with condensator outlet, and one end is connected with chiller4 entrances.
In order to realize the goal of the invention identical with above-mentioned technical proposal, present invention also offers above-described electric car water
The method of work of cold type heat management system, its technical solution are：
1st, when the first refrigerant solenoid valve 5 is in opening, the second refrigerant solenoid valve 6 is closed, then is only had time
Temperature regulating regulating loop works；
2nd, when battery pack temperature regulating circuit is in refrigeration work state, the electric compressor 3 of air-conditioner temperature regulating loop
It must work；When first refrigerant solenoid valve 5 is in opening, the second refrigerant solenoid valve 6 is also at opening, then air-conditioning temperature
Degree regulating loop and battery pack temperature regulating circuit work at the same time；The power distribution of electric compressor 3 depends on two circuits
Resistance；
3rd, when battery pack temperature regulating circuit is in heating work state, the electric compressor 3 of air-conditioner temperature regulating loop
It must be stopped；At this time, electric compressor 3 is closed, and heat exchanger 4 is in without heat exchange, the second water pump 8
Working status, crosses water PTC7 and is in the working status being powered；Water route in battery pack 17 keeps clear.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements and from aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing
Other occasions are directly applied into by the design of the present invention and technical solution, within protection scope of the present invention.
Claims (7)
1. a kind of electric car water-cooled heat management system, including driving motor cooling circuit, battery pack temperature regulating circuit, air-conditioning
Temperature regulating circuit, it is characterised in that：Crew module's heater is equipped with the HAVC (21) of the air-conditioner temperature regulating loop
(24), crew module's heater (24) is connected with crew module (23).
2. electric car water-cooled heat management system described in accordance with the claim 1, it is characterised in that：The air-conditioner temperature is adjusted
Setting order of the device on circulation line in circuit is electric compressor (3), condenser (22), the first refrigerant solenoid valve
(5)、HAVC(21)；The HAVC (21) is additionally provided with evaporator (16).
3. electric car water-cooled heat management system described in accordance with the claim 1, it is characterised in that：The battery pack temperature tune
Section circuit uses water circulation pipe；Heat exchanger (4) is equipped with battery pack temperature regulating circuit and crosses water PTC (7)；Described
The exchange piece of heat exchanger (4) is connected with air-conditioner temperature regulating loop.
4. electric car water-cooled heat management system described in accordance with the claim 3, it is characterised in that：The battery pack temperature tune
It is the second expansion tank (9), heat exchanger (4), the second water pump to save setting order of the device in circuit on water circulation pipe
(8), water PTC (7), battery pack (17) are crossed.
5. electric car water-cooled heat management system described in accordance with the claim 1, it is characterised in that：The driving motor cooling
Circuit uses independent water circulation pipe, is equipped with the first expansion tank (1), the first water pump successively in motor cooling circuit is driven
(2), electric machine controller (13) → motor reducer (19) and radiator (11).
6. electric car water-cooled heat management system described in accordance with the claim 3, it is characterised in that：The battery pack temperature tune
Save on circuit, it is in parallel with the HAVC (21), a branch is additionally provided with, the exchange piece of the heat exchanger (4) is set
On the branch；The second refrigerant solenoid valve (6) is additionally provided with the branch.
7. according to the method for work of the electric car water-cooled heat management system any one of claim 1 to 6, its feature exists
In：
1) when, the first refrigerant solenoid valve (5) is in opening, the second refrigerant solenoid valve (6) is closed, then is only had time
Temperature regulating regulating loop works；
2) when, battery pack temperature regulating circuit is in refrigeration work state, the electric compressor (3) of air-conditioner temperature regulating loop must
Must work；When first refrigerant solenoid valve (5) is in opening, the second refrigerant solenoid valve (6) is also at opening, then air-conditioning
Temperature regulating circuit and battery pack temperature regulating circuit work at the same time；The power distribution of electric compressor (3) depends on two and returns
The resistance on road；
3) when, battery pack temperature regulating circuit is in heating work state, the electric compressor (3) of air-conditioner temperature regulating loop must
It must be stopped；At this time, electric compressor (3) is closed, and heat exchanger (4) is without heat exchange, the second water pump (8)
It is in running order, cross water PTC (7) and be in the working status being powered；Water route in battery pack keeps clear.
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| CN201711241102.2A CN107972514A (en) | 2017-11-30 | 2017-11-30 | Electric car water-cooled heat management system and its method of work |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711241102.2A CN107972514A (en) | 2017-11-30 | 2017-11-30 | Electric car water-cooled heat management system and its method of work |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114265A (en) * | 2018-10-31 | 2020-05-08 | 长城汽车股份有限公司 | Vehicle heat exchange circulation system and vehicle with same |
| CN112078435A (en) * | 2020-08-21 | 2020-12-15 | 东风汽车集团有限公司 | Cooling system of fuel cell vehicle |
| CN112572089A (en) * | 2019-09-27 | 2021-03-30 | 北汽福田汽车股份有限公司 | Thermal management system for vehicle and vehicle with thermal management system |
| WO2022057325A1 (en) * | 2020-09-16 | 2022-03-24 | 长鑫存储技术有限公司 | Temperature control method and apparatus for etching working platform, and electronic device and storage medium |
| WO2022242100A1 (en) * | 2021-05-21 | 2022-11-24 | 一汽奔腾轿车有限公司 | Electric vehicle cooling system and control method therefor |
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