CN107487145B - Cooling system and vehicle with same - Google Patents
Cooling system and vehicle with same Download PDFInfo
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- CN107487145B CN107487145B CN201610833772.2A CN201610833772A CN107487145B CN 107487145 B CN107487145 B CN 107487145B CN 201610833772 A CN201610833772 A CN 201610833772A CN 107487145 B CN107487145 B CN 107487145B
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- Prior art keywords
- evaporator
- power supply
- condenser
- cooling system
- reversing valve
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- 238000001816 cooling Methods 0.000 title claims abstract description 83
- 239000003507 refrigerant Substances 0.000 claims abstract description 78
- 239000000110 cooling liquid Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000004378 air conditioning Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000012809 cooling fluid Substances 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 description 7
- 239000002826 coolant Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a cooling system, which comprises a condenser, a power supply evaporator, a reversing valve, an evaporator connected with the condenser in series and a power supply connected with the power supply evaporator in series; the refrigerant channel of the power supply evaporator is optionally connected with the refrigerant channel of the condenser in series to form a first refrigerant loop; the four outlets of the reversing valve are respectively and selectively connected with a power supply, an evaporator, a power supply evaporator and a condenser; the reversing valve at the first working position connects the cooling liquid channel of the evaporator and the cooling liquid channel of the condenser in series to form a first loop, and connects the cooling liquid channel of the power supply evaporator in series with the power supply to form a second loop; the reversing valve in the second working position connects the cooling fluid passage of the condenser, the power source evaporator and the evaporator in series to form a third circuit. The evaporator can be used for heat exchange in two working positions, the use frequency of the evaporator is high, and the evaporator is utilized to the maximum extent. The invention also discloses a vehicle comprising the cooling system.
Description
Technical Field
The invention relates to the technical field of vehicle design, in particular to a cooling system. Furthermore, the invention relates to a vehicle comprising the cooling system.
Background
In the field of vehicle design, most of the current battery cooling is carried out by adopting a refrigerator or an evaporator, the evaporator can be used for cooling the battery when the ambient temperature is below 20 ℃, the refrigerator is required to be used for cooling when the ambient temperature is higher than 20 ℃, and a common air-cooled condenser is used as an air-conditioning condenser when the refrigerator is used for cooling.
However, the problem of low utilization rate of the evaporator is common in the prior art, and the evaporator is only applied to the time with low temperature. In addition, the front cooling module has a large windage resistance of the evaporator, and thus the fan power needs to be increased for heat dissipation, but the fan noise increases as well as the fan power increases, and the NVH cost of the electric vehicle needs to be significantly increased for reducing noise and the corresponding influence.
In summary, how to provide a cooling system with high evaporator utilization rate is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, it is an object of the present invention to provide a cooling system in which the utilization rate of an evaporator is high.
It is another object of the present invention to provide a vehicle including the cooling system described above.
In order to achieve the above purpose, the invention provides the following technical scheme:
a cooling system comprises a condenser, a power supply evaporator, a reversing valve, an evaporator connected with the condenser in series and a power supply connected with the power supply evaporator in series; the refrigerant channel of the power supply evaporator is selectively connected with the refrigerant channel of the condenser in series to form a first refrigerant loop;
the four outlets of the reversing valve are respectively and selectively connected with the power supply, the evaporator, the power supply evaporator and the condenser;
the reversing valve in a first working position connects the cooling liquid channel of the evaporator and the cooling liquid channel of the condenser in series to form a first loop, and connects the cooling liquid channel of the power supply evaporator and the power supply in series to form a second loop;
the reversing valve in a second operating position connects the cooling fluid passage of the condenser, the power source evaporator, and the evaporator in series to form a third circuit.
Preferably, the air conditioner also comprises an air conditioner evaporator of an air conditioning system in the car, and a refrigerant channel of the power supply evaporator is selectively connected with a refrigerant channel of the air conditioner evaporator in parallel through a reversing connection valve;
in a first state, the refrigerant circuit of the cooling system comprises only the first refrigerant circuit;
when the air conditioner is in a second state, the refrigerant loop of the cooling system only comprises a second refrigerant loop formed by serially communicating a refrigerant channel of the air conditioner evaporator with a refrigerant channel of the condenser;
when the first state is the third state, the refrigerant circuit of the cooling system comprises a third refrigerant circuit formed by connecting the first refrigerant circuit and the second refrigerant circuit in parallel.
Preferably, the control device is connected with the reversing valve and the solenoid valve for controlling the work of the power supply evaporator.
Preferably, a first water pump for driving the circulation of the cooling liquid is arranged in the first loop, and/or a second water pump for driving the circulation of the cooling liquid is arranged in the second loop.
Preferably, the reversing valve is a four-way reversing valve, and four outlets of the four-way reversing valve are respectively connected with the power supply, the evaporator, the power supply evaporator and the condenser;
or the reversing valve is two three-way reversing valves, wherein three outlets of one three-way reversing valve are respectively connected with the condenser, the evaporator and the power supply, and three outlets of the other three-way reversing valve are respectively connected with the power supply evaporator, the evaporator and the power supply.
Preferably, a temperature sensor is arranged on a pipeline connecting the evaporator and the condenser;
and/or temperature sensors are arranged on the liquid inlet pipeline and the liquid outlet pipeline of the power supply.
Preferably, an electric compressor is connected in series in a refrigerant circuit of the cooling system.
A vehicle comprising a cooling system, the cooling system being any one of the cooling systems described above.
The reversing valve in the cooling system provided by the invention has a plurality of selectable working positions, and when the reversing valve is positioned at a first working position, the outlet corresponding to the evaporator and the outlet corresponding to the condenser are communicated, so that cooling liquid channels of the evaporator and the condenser are positioned in the same loop; the corresponding outlets of the power supply and the power supply evaporator are communicated, so that the cooling liquid channels of the power supply and the power supply evaporator are in the same loop. In the second loop, the power supply evaporator is used for heat exchange and temperature reduction of the power supply, and in the first loop, because the cooling liquid channel of the condenser is connected with the power supply evaporator in series, the condenser can exchange heat and reduce the temperature of the power supply evaporator, heat can be transferred to the evaporator through the first loop, and the evaporator realizes final heat dissipation work.
When the reversing valve is located at the second working position, the corresponding outlet of the condenser and the corresponding outlet of the battery are communicated, and the corresponding outlet of the evaporator and the corresponding outlet of the power supply evaporator are communicated, so that the evaporator, the condenser, the battery and the power supply evaporator are simultaneously connected in series in the third loop, and the direct cooling and heat dissipation of the power supply by the evaporator can be realized.
Therefore, the evaporator can be used for heat exchange in the two working positions and the purpose of heat dissipation is achieved, in the cooling system, the evaporator can directly cool the battery or cool a power supply evaporator of the battery, the use frequency of the evaporator is high, the heat exchange effect is good, and the evaporator is utilized to the maximum extent.
The invention also provides a vehicle comprising the cooling system, and the vehicle has good cooling effect and high evaporator utilization rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic connection diagram of a cooling system according to the present invention;
FIG. 2 is a schematic view of a first mode of use of a cooling system according to the present invention;
FIG. 3 is a schematic view of a second mode of use of a cooling system according to the present invention;
FIG. 4 is a schematic view of a third mode of use of a cooling system according to the present invention;
FIG. 5 is a schematic view of a fourth mode of use of a cooling system according to the present invention;
fig. 6 is a schematic diagram of a fifth mode of use of the cooling system of the present invention.
In the above FIGS. 1-6:
1 is evaporator, 2 is first water pump, 3 is condenser, 4 is reversing valve, 5 is temperature sensor, 6 is heater, 7 is power supply evaporator, 8 is second water pump, 9 is power supply, 10 is air conditioner evaporator, 11 is electric compressor, 12 is cooling fan, 13 is motor radiator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a cooling system in which the utilization of the evaporator is high. Another core of the present invention is to provide a vehicle including the cooling system described above.
Referring to fig. 1 to 6, fig. 1 is a schematic connection diagram of a cooling system according to the present invention; fig. 2 to 6 are schematic diagrams illustrating a first usage mode to a fifth usage mode of a cooling system according to the present invention.
The cooling system provided by the invention is mainly used for cooling a power supply in a vehicle or electrical equipment. The cooling system mainly comprises a condenser 3, a power supply evaporator 7, a reversing valve 4, an evaporator 1 connected with the condenser 3 in series and a power supply 9 connected with the power supply evaporator 7 in series. Wherein, the refrigerant channel of the power supply evaporator 7 is selectively connected with the refrigerant channel of the condenser 3 in series to form a first refrigerant loop, and four outlets of the reversing valve 4 are respectively and selectively connected with the power supply 9, the evaporator 1, the power supply evaporator 7 and the condenser 3.
The reversing valve 4 in the first operating position connects the evaporator 1 in series with the cooling fluid channel of the condenser 3 to form a first circuit and the cooling fluid channel of the power supply evaporator 7 in series with the power supply 9 to form a second circuit.
The reversing valve 4 in the second working position connects the cooling fluid channel of the condenser 3, the power supply 9, the power supply evaporator 7 and the evaporator 1 in series to form a third circuit.
In the above cooling system, the condenser 3 and the evaporator 1 are connected in series, the condenser 3 and the evaporator 1 are in a single-stage passage in communication, the power supply 9 and the power supply evaporator 7 are also connected in series, and the power supply 9 and the power supply evaporator 7 are in a single-stage passage in communication. The refrigerant passage of the condenser 3 and the refrigerant passage of the power source evaporator 7 are connected in series to form a refrigerant circuit, so that the refrigerant in the refrigerant circuit can cool the power source evaporator 7 and simultaneously transfer heat to the cooling liquid passage of the condenser 3.
The reversing valve 4 should have at least four outlets which are selectively connected to the power source 9, the evaporator 1, the power source evaporator 7 and the condenser 3, respectively. The different working positions of the reversing valve 4 realize the different connection combination modes of the four outlets.
When the reversing valve 4 is positioned at the first working position, the outlet corresponding to the evaporator 1 and the outlet corresponding to the condenser 3 are communicated, so that the cooling liquid channels of the evaporator 1 and the condenser 3 are positioned in the same loop; and the corresponding outlet of the power supply 9 and the corresponding outlet of the power supply evaporator 7 are communicated, so that the cooling liquid channels of the power supply 9 and the power supply evaporator 7 are in the same loop. In the second loop, the power supply evaporator 7 exchanges heat for the power supply 9 to reduce the temperature, and in the first loop, because the refrigerant channel of the condenser 3 is connected with the power supply evaporator 7 in series, the condenser 3 can exchange heat for the power supply evaporator 7 to reduce the temperature, and heat can be transferred to the evaporator 1 through the first loop, and the evaporator 1 realizes the final heat dissipation work.
When the reversing valve 4 is in the second working position, the outlet corresponding to the condenser 3 and the outlet corresponding to the battery 9 are communicated, and the outlet corresponding to the evaporator 1 and the outlet corresponding to the power supply evaporator 7 are communicated, so that the evaporator 1, the condenser 3, the battery 9 and the power supply evaporator 7 are simultaneously connected in series in a third loop, and the evaporator 1 can directly cool and radiate the power supply 9.
It can be seen that the evaporator 1 can be used for heat exchange in the two working positions and the purpose of heat dissipation is achieved, in the cooling system, the evaporator 1 can directly cool the battery 9 or cool the power supply evaporator 7 of the battery 9, the use frequency of the evaporator 1 is high, the heat exchange effect is good, and the evaporator 1 is utilized to the maximum extent.
On the basis of the above described embodiment, in order to maximize the utilization of the cooling system, the above described apparatus further comprises an air conditioning evaporator 10 of the in-vehicle air conditioning system. Specifically, the refrigerant channel of the power supply evaporator 7 is selectively connected in parallel with the refrigerant channel of the air conditioner evaporator 10 through a reversing connection valve.
In the first state, the refrigerant circuit of the cooling system comprises only the first refrigerant circuit. The refrigerant passage of the power source evaporator 7 communicates in series with the refrigerant passage of the condenser 3 to form the first refrigerant circuit described above. The first refrigerant circuit is primarily used to exchange heat for the power supply evaporator 7 via the condenser 3.
In the second state, the refrigerant circuit of the cooling system only includes a second refrigerant circuit formed by the refrigerant channel of the air conditioner evaporator 10 and the refrigerant channel of the condenser 3 communicated in series. The second refrigeration loop is mainly used for exchanging heat for the air conditioner evaporator 10 through the condenser 3.
In the third state, the refrigerant circuit of the cooling system includes a third refrigerant circuit formed by connecting the first refrigerant circuit and the second refrigerant circuit in parallel, specifically, the refrigerant channel of the power supply evaporator 7 is connected in parallel with the refrigerant channel of the air conditioner evaporator 10 and is communicated with the refrigerant channel of the condenser 3 in series to form the third refrigerant circuit. The third refrigerant loop is mainly used for exchanging heat for the air conditioner evaporator 10 and the power supply evaporator 7 simultaneously through the condenser 3.
It should be noted that, the refrigerant channel of the air conditioner evaporator 10 is connected in parallel with the refrigerant channel of the power supply evaporator 7, so that the refrigeration capacity of the refrigerant circuit can be utilized to directly perform cooling and heat exchange on the air conditioner evaporator 10, thereby further improving the service efficiency of the evaporator 1.
On the basis of any of the above embodiments, the condenser 3 may be embodied as a water-cooled condenser. The cooling liquid in the water-cooled condenser can be water or other liquid. Compared with other condensers, the mode of adopting the water-cooled condenser has good cooling effect and large heat exchange ratio, and can reduce the occupied space of the condenser.
On the basis of any one of the above embodiments, the control device is further included, and the control device is connected with the reversing valve 4 and is connected with the electromagnetic valve for controlling the work of the power supply evaporator 7. That is, the control device is used to control the operating position of the directional valve 4 and to control the operating position of the power supply evaporator 7. In the second working position, the power supply evaporator 7 may or may not work, and the temperature of the battery 9 is lowered only by heat exchange of the evaporator 1, so that the control device can be used to control the solenoid valve of the power supply evaporator 7 to stop working, so as to stop working the power supply evaporator 7. In addition, when the cooling system cools and cools only the air conditioner evaporator 10, the solenoid valve operated by the power supply evaporator 7 may be closed to close the power supply evaporator 7.
Alternatively, the cooling system may be controlled by other devices in various manners, and this embodiment does not limit the manner of shutting down the power supply evaporator 7.
Because the cooling liquid in the cooling system flows and needs external force to realize pushing, a power device needs to be arranged, and because two independent loops exist in the first working position, the mutual flow condition of the cooling liquid of the two loops does not exist, the power devices need to be arranged respectively. Specifically, a first water pump 2 for driving the circulation of the cooling liquid is provided in the first circuit, and/or a second water pump 8 for driving the circulation of the cooling liquid is provided in the second circuit. It should be noted that, in the second operating position, the first water pump 2 and the second water pump 8 may be operated simultaneously or individually.
Optionally, the first water pump 2 and the second water pump 8 may be electronic water pumps.
Alternatively, other power devices besides water pumps may be selected to implement the propulsion cycle.
The reversing valve 4 in each of the above embodiments may have various embodiments, wherein in a reliable manner, the reversing valve 4 is a four-way reversing valve, four outlets of the four-way reversing valve are respectively connected to the power supply 9, the evaporator 1, the power supply evaporator 7 and the condenser 3, and the four-way reversing valve may realize connection of any two outlets. Of course, in the above scheme, the four-way reversing valve mainly connects the condenser 3 with the power supply 9, and correspondingly connects the power supply evaporator 7 with the evaporator 1; or the condenser 3 is connected to the power supply 9.
Or, in another reliable mode, the reversing valve 4 is two three-way reversing valves, three outlets of one three-way reversing valve are respectively connected with the condenser 3, the evaporator 1 and the power supply 9, that is, the selectable connection between the condenser 3 and the power supply 9 as well as between the evaporator 1 can be realized, and three outlets of the other three-way reversing valve are respectively connected with the power supply evaporator 7, the evaporator 1 and the power supply 9, that is, the selectable connection between the power supply evaporator 7 and the power supply 9 as well as between the evaporator 1 can be realized. It should be noted that, in order to ensure correct use, the condenser 3 and the power supply evaporator 7 need to be connected to one of the evaporator 1 and the power supply 9 correspondingly in the internal connection relationship of the two three-way directional valves.
On the basis of any of the above-mentioned embodiments, in order to better understand and master the state of the cooling system, the temperature conditions in the respective circuits or devices, a temperature sensor 5 is provided on the pipe connecting the evaporator 1 and the condenser 3, and/or a temperature sensor 5 is provided on the inlet and outlet pipes of the power supply 9.
In this embodiment, the temperature sensor 5 is mainly used to detect the temperature in the circuit for display to an operator or for recording by other means for controlling the cooling system.
Optionally, the temperature sensor 5 may be connected to the control device, and after receiving the temperature measured by the temperature sensor 5, the control device may control the reversing valve 4, the power supply evaporator 7, and the like according to a preset safety temperature or a preset limit temperature, so as to achieve a reasonable cooling state.
On the basis of any of the above embodiments, the front end air cooling device of the evaporator 1 is the motor radiator 13 and the cooling fan 12, wherein the cooling fan 12 may be a low-power fan. The low-power fan is beneficial to reducing fan noise, reducing vibration in vehicles or devices, reducing damage caused by vibration and providing better use experience for users.
Optionally, an electric compressor 11 is connected in series in the refrigerant circuit in the cooling system. Further, a heater 6 is also connected in series in the second circuit.
The cooling system provided in the above embodiments can provide the following five usage modes, please refer to fig. 2 to 6, wherein the solid line is the battery cooling circuit, and the dotted line is the refrigerant circuit.
Fig. 2 is a schematic view of a first mode of use, which is a mode in which the in-vehicle air conditioning evaporator 10 operates alone.
In this operating mode, the coolant circulation is that first water pump 2 promotes the coolant circulation, and after getting into the water-cooled condenser, the heat that the coolant liquid was sent away the condenser is taken away, gets into evaporimeter 1 after, takes away the heat of evaporimeter 1 through outside air. In the preparation circulation in the working condition, the electromagnetic valve in the loop of the power supply evaporator 7 is closed, and the refrigerant cools the interior of the vehicle only through the air-conditioning evaporator 10 in the vehicle.
Fig. 3 is a schematic view of a second mode of use, in which the battery 9 is cooled using the power supply evaporator 7, with the diverter valve 4 in the first operating position.
And a second water pump 8 in the second loop pushes cooling liquid to enter a power supply evaporator 7 for cooling to obtain low-temperature cooling liquid, the low-temperature cooling liquid flows through the four-way reversing valve and flows to an inlet of the battery 9, and the low-temperature cooling liquid takes away heat of the battery after entering the battery 9.
The solenoid valve of the circuit of the air conditioning evaporator 10 in the refrigerant circuit is closed, the refrigerant cools the cooling liquid after passing through the power supply evaporator 7, and the refrigerant absorbs heat and then becomes high-temperature and high-pressure gas through the electric compressor, and then enters the water-cooled condenser for heat dissipation.
Fig. 4 is a schematic view of a third mode of use, in which the battery 9 is cooled using the evaporator 1, with the diverter valve 4 in the second operating position.
The battery 9 is cooled by the evaporator 1, and two electronic water pumps are arranged in the loop and can work independently or simultaneously according to the needs. Of course, the power supply evaporator 7 may be operated (the refrigerant circuit is not shown) or stopped at this time.
Fig. 5 is a schematic view of a fourth mode of use, which is a mode in which the battery is cooled using the evaporator 1 while the in-vehicle air-conditioning evaporator 10 is operated, with the direction change valve 4 in the second operation position.
The cooling liquid flowing out of the evaporator 1 in the cooling liquid circulation firstly enters the water-cooled condenser, then enters the battery 9 and finally returns to the evaporator 1, the electromagnetic valve leading to the power supply evaporator 7 in the refrigerant loop is closed, and the refrigerant only flows in the loop of the air conditioner evaporator 10.
Fig. 6 is a schematic diagram of a fifth mode of use, which is a mode in which the battery is cooled using the power supply evaporator 7 and the air conditioner evaporator 10 is also operated.
The evaporator 1 and the water-cooled condenser are a single working circulation loop (namely a first loop), and the heat emitted by the condenser 3 is dissipated through the evaporator 1. The cooling liquid in the battery cooling loop (i.e. the second loop) enters the power evaporator 7 to obtain low-temperature cooling liquid, and then enters the battery 9 to take out the heat in the battery 9.
The two refrigerant circuits of the air conditioner evaporator 10 and the power supply evaporator 7 are parallel circuits, electromagnetic valves of the two circuits are opened, and the air conditioner evaporator 10 and the power supply evaporator 7 are simultaneously cooled.
The reversing valve 4 provided by the invention can be used as a switching device of a circulation loop mode, so that five use modes can be realized, in the five use modes, the evaporator 1 can simultaneously dissipate heat of the condenser 3 and the battery 9, and can be used as a secondary evaporator of the power supply evaporator 7, so that the refrigeration effect of a cooling system can be improved, and the utilization rate of the evaporator 1 can be greatly improved.
In addition to the cooling system provided in the above embodiment, the present invention further provides a vehicle including the cooling system disclosed in the above embodiment, and the vehicle can achieve a better cooling effect due to the provision of the cooling system, and the usage rate of the refrigerator and the evaporator 1 is high.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The cooling system and the vehicle having the cooling system provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. A cooling system, characterized by comprising a condenser (3), a power supply evaporator (7), a reversing valve (4), an evaporator (1) in series with the condenser (3) and a power supply (9) in series with the power supply evaporator (7); the refrigerant channel of the power supply evaporator (7) is optionally connected with the refrigerant channel of the condenser (3) in series to form a first refrigerant loop;
four outlets of the reversing valve (4) are respectively and selectively connected with the power supply (9), the evaporator (1), the power supply evaporator (7) and the condenser (3);
the reversing valve (4) in a first working position connects the cooling liquid channels of the evaporator (1) and the condenser (3) in series to form a first loop, and connects the cooling liquid channel of the power supply evaporator (7) in series with the power supply (9) to form a second loop;
the reversing valve (4) in a second working position connects the cooling liquid channel of the condenser (3), the power supply (9), the power supply evaporator (7) and the evaporator (1) in series to form a third circuit;
the air conditioner also comprises an air conditioner evaporator (10) of an air conditioning system in the car, and a refrigerant channel of the power supply evaporator (7) is selectively connected in parallel with a refrigerant channel of the air conditioner evaporator (10) through a reversing connection valve;
in a first state, the refrigerant circuit of the cooling system comprises only the first refrigerant circuit; when the air conditioner is in a second state, the refrigerant loop of the cooling system only comprises a second refrigerant loop formed by serially communicating a refrigerant channel of the air conditioner evaporator (10) with a refrigerant channel of the condenser (3); when the first state is the third state, the refrigerant circuit of the cooling system comprises a third refrigerant circuit formed by connecting the first refrigerant circuit and the second refrigerant circuit in parallel.
2. The cooling system according to claim 1, further comprising a control device connected to the reversing valve (4) and to a solenoid valve controlling the operation of the power supply evaporator (7).
3. Cooling system according to claim 2, characterized in that a first water pump (2) for driving the circulation of cooling liquid is arranged in the first circuit and/or a second water pump (8) for driving the circulation of cooling liquid is arranged in the second circuit.
4. The cooling system according to claim 3, wherein the reversing valve (4) is a four-way reversing valve, and four outlets of the four-way reversing valve are respectively connected with the power supply (9), the evaporator (1), the power supply evaporator (7) and the condenser (3);
or, the reversing valve (4) is two three-way reversing valves, wherein three outlets of one three-way reversing valve are respectively connected with the condenser (3), the evaporator (1) and the power supply (9), and three outlets of the other three-way reversing valve are respectively connected with the power supply evaporator (7), the evaporator (1) and the power supply (9).
5. Cooling system according to claim 4, characterized in that a temperature sensor (5) is arranged on the line connecting the evaporator (1) and the condenser (3);
and/or temperature sensors (5) are arranged on the liquid inlet pipeline and the liquid outlet pipeline of the power supply (9).
6. Cooling system according to claim 5, characterized in that an electric compressor (11) is connected in series in the refrigerant circuit of the cooling system.
7. A vehicle comprising a cooling system, characterized in that the cooling system is a cooling system according to any one of claims 1 to 6.
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|---|---|---|---|
| CN201610833772.2A CN107487145B (en) | 2016-09-19 | 2016-09-19 | Cooling system and vehicle with same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610833772.2A CN107487145B (en) | 2016-09-19 | 2016-09-19 | Cooling system and vehicle with same |
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| CN107487145A CN107487145A (en) | 2017-12-19 |
| CN107487145B true CN107487145B (en) | 2020-01-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107968237B (en) * | 2017-12-23 | 2019-06-07 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of recirculated cooling water device for fuel cell module |
| CN109638312B (en) * | 2018-10-23 | 2021-05-04 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Circulating cooling water device of fuel cell system |
| CN111954439A (en) * | 2020-07-17 | 2020-11-17 | 珠海格力电器股份有限公司 | Cooling device, cooling method, magnetic suspension bearing system and air conditioning unit |
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| CN103129348A (en) * | 2011-11-23 | 2013-06-05 | 杭州三花研究院有限公司 | Electric vehicle heat pump system |
| CN203727131U (en) * | 2014-03-11 | 2014-07-23 | 广州汽车集团股份有限公司 | New-energy vehicle thermal management system |
| CN105431313A (en) * | 2013-07-26 | 2016-03-23 | 松下知识产权经营株式会社 | Vehicle air conditioner |
| CN205130860U (en) * | 2015-11-24 | 2016-04-06 | 安徽江淮汽车股份有限公司 | Electric automobile's thermal management system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2948898B1 (en) * | 2009-08-07 | 2012-04-06 | Renault Sa | GLOBAL THERMAL CONTROL SYSTEM FOR MOTOR VEHICLE WITH ELECTRIC PROPULSION. |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129348A (en) * | 2011-11-23 | 2013-06-05 | 杭州三花研究院有限公司 | Electric vehicle heat pump system |
| CN105431313A (en) * | 2013-07-26 | 2016-03-23 | 松下知识产权经营株式会社 | Vehicle air conditioner |
| CN203727131U (en) * | 2014-03-11 | 2014-07-23 | 广州汽车集团股份有限公司 | New-energy vehicle thermal management system |
| CN205130860U (en) * | 2015-11-24 | 2016-04-06 | 安徽江淮汽车股份有限公司 | Electric automobile's thermal management system |
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Denomination of invention: The invention relates to a cooling system and a vehicle with the cooling system Effective date of registration: 20211213 Granted publication date: 20200117 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Borgward Automotive (China) Co., Ltd. Registration number: Y2021990001167 |
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Date of cancellation: 20231201 Granted publication date: 20200117 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Beijing baowo Automobile Co.,Ltd.|Borgward Automotive (China) Co., Ltd. Registration number: Y2021990001167 |
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