CN119037081B - Vehicle thermal management system and vehicle - Google Patents
Vehicle thermal management system and vehicleInfo
- Publication number
- CN119037081B CN119037081B CN202411164806.4A CN202411164806A CN119037081B CN 119037081 B CN119037081 B CN 119037081B CN 202411164806 A CN202411164806 A CN 202411164806A CN 119037081 B CN119037081 B CN 119037081B
- Authority
- CN
- China
- Prior art keywords
- temperature control
- branch pipe
- communicated
- liquid
- liquid outlet
- 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.)
- Active
Links
Classifications
-
- 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
- B60H1/00321—Heat exchangers for air-conditioning devices
- B60H1/00342—Heat exchangers for air-conditioning devices of the liquid-liquid type
-
- 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
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- 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
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/008—Arrangement or mounting of electrical propulsion units with means for heating the electrical propulsion units
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
本发明涉及热管理技术领域，具体涉及一种车辆热管理系统及车辆，所述车辆热管理系统包括膨胀水壶以及与膨胀水壶连通的电池温度控制回路、空调制冷回路和电驱温度控制回路；与所述膨胀水壶出液口连接的第一支管与电池温度控制回路中的第一泵体进液口连通；与所述膨胀水壶出液口连接的第二支管与空调制冷回路中的第二泵体进液口连通；与所述膨胀水壶出液口连接的第三支管与电驱温度控制回路中的第三泵体进液口连通。其既能保证热管理系统的加注、排气效果，也能够改善车辆运行状态补液、排气困难问题，还能降低不同温差循环回路热损失，结构简单，布置方便，成本低。
The present invention relates to the field of thermal management technology, and specifically to a vehicle thermal management system and a vehicle. The vehicle thermal management system includes an expansion kettle and a battery temperature control circuit, an air conditioning refrigeration circuit, and an electric drive temperature control circuit connected to the expansion kettle; a first branch pipe connected to the liquid outlet of the expansion kettle is connected to the first pump body liquid inlet in the battery temperature control circuit; a second branch pipe connected to the liquid outlet of the expansion kettle is connected to the second pump body liquid inlet in the air conditioning refrigeration circuit; and a third branch pipe connected to the liquid outlet of the expansion kettle is connected to the third pump body liquid inlet in the electric drive temperature control circuit. The thermal management system can not only ensure the filling and exhaust effects of the thermal management system, but also improve the difficulty of refilling and exhausting in the vehicle's operating state, and reduce heat loss in circulation circuits with different temperature differences. It has a simple structure, convenient layout, and low cost.
Description
Technical Field
The invention relates to the technical field of thermal management, in particular to a vehicle thermal management system and a vehicle.
Background
The new energy automobile develops rapidly, and the thermal management system is updated synchronously and iteratively. The thermal management service object increases. The scheme of the thermal management system is greatly changed by combining the research and development and application of new working media, the deflection of the refrigerant side is extremely simple, and the deflection of the water side is complex. The heat management water side circulation is developed from the traditional engine waterway circulation of the fuel oil vehicle to the multi-waterway system of the battery, electric drive, air conditioner cooling and heating circulation and the like of new energy. The multiple independent circulating waterways all need filling, exhausting and liquid supplementing so as to ensure that the flow of the circulating waterways meets the design requirement.
The number of antifreeze liquid storage pots of the existing electric vehicle thermal management system principle is different according to different vehicle types, and cooling service objects and types are approximately provided with single pot, double pot and multiple pot schemes. In the single-kettle scheme, a battery temperature control loop and a kettle are generally connected in series, and an electric drive temperature control loop and the kettle are connected in parallel. When the battery temperature control loop and the electric drive temperature control loop work circularly, liquid can be mixed in the kettle, the temperature of liquid in the two loops has a temperature difference, heat transfer (called heat leakage for short) exists, the heat exchange performance of the respective loops is affected, and the low-voltage energy consumption is affected. In the scheme of double kettles and multiple kettles, the battery, the electric drive and the like are independently circulated, each loop is respectively filled and exhausted independently, strategy intervention is not needed, but the arrangement of the double kettles or the multiple kettles is high in cost, the requirement on arrangement space is high, the arrangement of a compact cabin is relatively difficult, double-gun filling is needed for production filling, and the requirement on process equipment is high.
Disclosure of Invention
The invention aims to provide a vehicle thermal management system and a vehicle, which can ensure the filling and exhausting effects of the thermal management system, can improve the problems of liquid supplementing and difficult exhausting in the running state of the vehicle, can reduce the heat loss of different temperature difference circulation loops, and has the advantages of simple structure, convenient arrangement and low cost.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
In a first aspect, the invention provides a vehicle thermal management system, which is characterized by comprising an expansion kettle, and a battery temperature control loop, an air conditioner refrigerating loop and an electric drive temperature control loop which are communicated with the expansion kettle;
the first branch pipe connected with the liquid outlet of the expansion kettle is communicated with a liquid inlet of a first pump body in the battery temperature control loop;
the second branch pipe connected with the liquid outlet of the expansion kettle is communicated with a liquid inlet of a second pump body in the air conditioner refrigerating loop;
And a third branch pipe connected with the liquid outlet of the expansion kettle is communicated with a liquid inlet of a third pump body in the electric drive temperature control loop.
In some embodiments, an exhaust pipe is connected between the expansion kettle and the battery temperature control circuit, the air conditioner refrigeration circuit and/or the electric drive temperature control circuit.
In some embodiments, the expansion tank is arranged at the highest point of the vehicle thermal management system, the first branch pipe is used as an exhaust pipe between the expansion tank and the battery temperature control loop, and the second branch pipe is used as an exhaust pipe between the expansion tank and the air conditioner refrigerating loop.
In some embodiments, the first branch pipe and the second branch pipe have an inner diameter of 16mm or more.
In some embodiments, a fourth branch pipe is connected between the expansion kettle and the electric drive temperature control loop, a liquid outlet of the fourth branch pipe is communicated with a reflux port of the expansion kettle, and liquid medium and air in the electric drive temperature control loop are refluxed into the expansion kettle by using the fourth branch pipe.
In some embodiments, the battery temperature control circuit comprises a first pump body and a battery connected in series by a conduit;
the air conditioner refrigerating loop comprises a second pump body, a refrigerator and a cold air core body of the air conditioner assembly which are connected in series through pipelines;
the electric drive temperature control loop comprises a third pump body, a heating element, an electric drive assembly and a radiator which are connected in series through pipelines;
The battery temperature control loop is connected with the refrigerator and the heating element in parallel through pipelines.
In some embodiments, the liquid outlet of the refrigerator is communicated with the liquid inlet a of the first three-way valve, the liquid outlet b of the first three-way valve is communicated with the cold air core,
The liquid outlet of the radiator is communicated with the liquid inlet d of the second three-way valve, and the liquid outlet f of the second three-way valve is communicated with the liquid inlet of the third pump body;
the liquid outlet c of the first three-way valve and the liquid outlet of the heating element are communicated with the liquid inlet of the battery, and the liquid outlet of the battery is communicated with the liquid inlet of the first pump body, the liquid inlet of the second pump body and the liquid inlet e of the second three-way valve.
In some embodiments, the heating element is connected in parallel with the warm air core of the air conditioning assembly, the liquid outlet of the heating element is communicated with the liquid inlet g of the third three-way valve, the liquid outlet h of the third three-way valve is communicated with the liquid inlet of the battery, the liquid outlet i of the third three-way valve is communicated with the liquid inlet of the warm air core, and the liquid outlet of the warm air core is communicated with the liquid inlet e of the second three-way valve.
In a second aspect, the present invention provides a vehicle comprising the vehicle thermal management system described above.
The invention has the beneficial effects that:
1. According to the invention, only one expansion kettle is arranged, so that the liquid supplementing requirements of a battery temperature control loop, an air conditioning refrigeration loop and an electric drive temperature control loop can be met at the same time, and as the first branch pipe, the second branch pipe and the third branch pipe which are connected with the liquid outlets of the expansion kettle are respectively communicated with the liquid inlets of the first pump body in the battery temperature control loop, the liquid inlets of the second pump body in the air conditioning refrigeration loop and the liquid inlets of the third pump body in the electric drive temperature control loop, the liquid flow rate in the loop can be accelerated when the first pump body, the second pump body and/or the third pump body work, the liquid medium in the expansion kettle can be promoted to be quickly supplemented into the corresponding loop, and the liquid supplementing efficiency is improved.
2. According to the invention, the expansion kettle is arranged at the highest point of the vehicle thermal management system, the first branch pipe is used as an exhaust pipe between the expansion kettle and the battery temperature control loop, the second branch pipe is used as an exhaust pipe between the expansion kettle and the air-conditioning refrigeration loop, and further, bidirectional flow of media and gas is realized in the first branch pipe and the second branch pipe, namely, the density of air in the battery temperature control loop and the air-conditioning refrigeration loop is smaller than that of liquid media, so that the air is reversely discharged to the expansion kettle along the first branch pipe and the second branch pipe. Synchronously, because the air in the battery temperature control loop and the air conditioning refrigeration loop is discharged, in order to maintain the pressure of the loop unchanged, the liquid medium in the expansion kettle is supplemented into the battery temperature control loop and the air conditioning refrigeration loop along the first branch pipe and the second branch pipe in the forward direction, so that synchronous operation of liquid supplementing and air exhausting is realized.
3. The expansion kettle is connected with the electric drive temperature control loop in parallel through the third branch pipe and the fourth branch pipe, when the third pump body works, the expansion kettle can participate in the liquid medium circulation of the electric drive temperature control loop, and at the moment, the fourth branch pipe can discharge air in the electric drive temperature control loop into the expansion kettle and circulate and supplement liquid through the third branch pipe.
4. The expansion kettle provided by the invention has a simple structure, only two interfaces of the liquid outlet and the reflux outlet are required to be arranged, and the internal part of the kettle body of the expansion kettle does not need to be designed in a partitioned manner, so that the manufacturing difficulty is reduced. And the design of a single expansion kettle has smaller requirement on the arrangement space in the engine room, and the arrangement difficulty of the expansion kettle is greatly reduced.
5. The electric drive temperature control loop is connected with the battery temperature control loop and the air conditioner refrigerating loop in parallel, when the vehicle is in a running state, the battery temperature control loop and the air conditioner refrigerating loop are rapidly supplemented with liquid and exhausted by utilizing the first branch pipe and the second branch pipe, and after the liquid supplementing is completed, no flow exists between the first branch pipe and the expansion kettle and between the second branch pipe and the expansion kettle. After the thermal management system is stable, the expansion kettle only participates in the circulation of the electric drive temperature control loop, so that the flowing heat exchange can not be generated in the expansion kettle, and the problem of heat leakage is avoided.
6. The invention can realize the liquid supplementing and air exhausting requirements of the battery temperature control loop, the air conditioner refrigerating loop and the electric drive temperature control loop by adopting a physical structure, and has low cost without a control strategy and an electric control part.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the description of the embodiments or the prior art will be briefly introduced below, it being obvious that the drawings in the description below are only some examples of the present invention.
Fig. 1 is a schematic diagram showing the constitution of a vehicle thermal management system according to an embodiment of the present application;
fig. 2 shows a schematic diagram of the after-market static filling principle of the thermal management system for a vehicle according to an embodiment of the application.
In the figure, 10-an expansion kettle, 101-a first branch pipe, 102-a second branch pipe, 103-a third branch pipe, 104-a fourth branch pipe;
20-a battery temperature control loop, 201-a first pump body, 202-a battery;
30-an air conditioner refrigerating loop, 301-a second pump body, 302-a refrigerator, 303-a cold air core body;
40-an electric drive temperature control loop, 401-a third pump body, 402-a heating element, 403-an electric drive assembly, 404-a radiator;
50-a first three-way valve;
60-a second three-way valve;
70-a third three-way valve;
80-warm air core.
Detailed Description
Further advantages and effects of the present invention will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
In one embodiment, referring to fig. 1, there is provided a vehicle thermal management system, which includes an expansion kettle 10, a battery temperature control circuit 20, an air-conditioning refrigeration circuit 30 and an electric drive temperature control circuit 40, which are communicated with the expansion kettle 10, a first branch pipe 101 connected with a liquid outlet m of the expansion kettle 10 is communicated with a liquid inlet of a first pump body 201 in the battery temperature control circuit 20, a second branch pipe 102 connected with the liquid outlet m of the expansion kettle 10 is communicated with a liquid inlet of a second pump body 301 in the air-conditioning refrigeration circuit 30, and a third branch pipe 103 connected with the liquid outlet m of the expansion kettle 10 is communicated with a liquid inlet of a third pump body 401 in the electric drive temperature control circuit 40.
According to the application, only one expansion kettle 10 is arranged, so that the liquid supplementing requirements of the battery temperature control loop 20, the air conditioning refrigeration loop 30 and the electric drive temperature control loop 40 can be met at the same time, and as the first branch pipe 101, the second branch pipe 102 and the third branch pipe 103 which are connected with the liquid outlets of the expansion kettle 10 are respectively communicated with the liquid inlet of the first pump body 201 in the battery temperature control loop 20, the liquid inlet of the second pump body 301 in the air conditioning refrigeration loop 30 and the liquid inlet of the third pump body 401 in the electric drive temperature control loop 40, when the first pump body 201, the second pump body 301 and/or the third pump body 401 work, the liquid flow rate in the loop can be accelerated, the liquid medium in the expansion kettle 10 can be promoted to be quickly supplemented into the corresponding loop, and the liquid supplementing efficiency is improved.
In a preferred embodiment, as shown in fig. 1, an exhaust pipe is connected between the expansion kettle 10 and the battery temperature control circuit 20, the air conditioning refrigeration circuit 30 and/or the electric drive temperature control circuit 40, and the exhaust pipe is used for exhausting air in the battery temperature control circuit 20, the air conditioning refrigeration circuit 30 and/or the electric drive temperature control circuit 40, so that the liquid supplementing and exhausting requirements of each circuit are synchronously realized, and the liquid supplementing effect is ensured.
As a preferred implementation of this example, referring to fig. 1, the expansion tank 10 is arranged at the highest point of the vehicle thermal management system, with the first branch pipe 101 serving as the exhaust pipe between the expansion tank 10 and the battery temperature control circuit 20, and the second branch pipe 102 serving as the exhaust pipe between the expansion tank 10 and the air conditioning and refrigerating circuit 30.
So arranged, as shown in fig. 2, a bidirectional flow of liquid medium and gas can be realized in the first branch pipe 101 and the second branch pipe 102, namely, the air density in the battery temperature control circuit 20 and the air conditioning refrigeration circuit 30 is smaller than the liquid medium density, and the air is discharged to the expansion kettle 10 along the first branch pipe 101 and the second branch pipe 102 reversely by itself as shown by the dotted arrows in fig. 2. Synchronously, because the air in the battery temperature control loop 20 and the air conditioning and refrigerating loop 30 is discharged, in order to maintain the pressure in the loop unchanged, as shown by solid arrows in fig. 2, the liquid medium in the expansion kettle 10 is supplemented into the battery temperature control loop 20 and the air conditioning and refrigerating loop 30 along the first branch pipe 101 and the second branch pipe 102 in a forward direction, so that synchronous operation of liquid supplementing and air exhausting is realized, the structure is simple, no exhaust pipes are required to be separately arranged, and the manufacturing cost of the thermal management system is reduced. Meanwhile, the liquid medium volumes in the battery temperature control loop 20 and the air conditioning refrigeration loop 30 are smaller, and the liquid supplementing and exhausting efficiency can be ensured through the bidirectional flow arrangement of the first branch pipe 101 and the second branch pipe 102.
Further, the inner diameters of the first branch pipe 101 and the second branch pipe 102 are larger than or equal to 16mm, and by properly expanding the inner diameters of the first branch pipe 101 and the second branch pipe 102, the bidirectional flow rate of liquid medium and air can be improved, and the liquid supplementing and exhausting time can be reduced.
As a preferred implementation of this embodiment, referring to fig. 1, a fourth branch pipe 104 is connected between the expansion kettle 10 and the electric drive temperature control circuit 40, a liquid outlet of the fourth branch pipe 104 is communicated with a return port n of the expansion kettle 10, and the liquid medium and air in the electric drive temperature control circuit 104 are returned into the expansion kettle 10 by using the fourth branch pipe 104. The electric drive temperature control loop 40 is connected in parallel with the battery temperature control loop 20 and the air-conditioning refrigeration loop 30, when the vehicle is in a running state, the battery temperature control loop 20 and the air-conditioning refrigeration loop 30 are quickly replenished with liquid and exhausted by utilizing the first branch pipe 101 and the second branch pipe 102, and after the replenishing of the liquid is completed, no flow exists between the first branch pipe 101 and the second branch pipe 102 and the expansion kettle 10. After the thermal management system is stable, the expansion kettle 10 is connected with the electric drive temperature control loop 40 in parallel only through the third branch pipe 103 and the fourth branch pipe 104, and participates in the liquid medium circulation of the electric drive temperature control loop 40, and the battery temperature control loop, the air conditioner refrigerating loop and the kettle do not circularly flow, so that the flowing heat exchange can not be generated in the expansion kettle 10, and the problem of heat leakage is avoided. And air in the electric drive temperature control circuit 40 can be refluxed into the expansion kettle 10 along with the liquid medium through the fourth branch pipe 104 and discharged, and liquid is supplied to the electric drive temperature control circuit 40 by the third branch pipe 104.
In a preferred embodiment, referring to FIG. 1, the battery temperature control circuit 20 comprises a first pump body 201 and a battery 202 which are connected in series through a pipeline, and the air conditioning refrigeration circuit 30 comprises a second pump body 301, a refrigerator 302 and a cold air core 303 of the air conditioning assembly which are connected in series through a pipeline;
the electric drive temperature control loop 40 comprises a third pump body 401, a heating element 402, an electric drive assembly 403 and a radiator 404 which are connected in series through pipelines;
The battery temperature control circuit 20 is connected in parallel with the refrigerator 302 and the heating element 402 through pipelines, so that the collected battery temperature can be used for communicating and circulating the air conditioning refrigeration circuit 30 or the electric drive temperature control circuit 40 with the battery temperature control circuit 20, and the regulation and control of the battery temperature are realized.
The liquid supplementing, exhaust and heat leakage conditions are respectively analyzed from the static condition of the vehicle and the running process of the vehicle, and specific examples include:
1) And (3) filling and exhausting the production line, namely, the static filling of the production line is the same as that of a conventional thermal management system, and the vacuum is firstly pumped and then the liquid medium is filled, so that the description is omitted.
2) After-market filling and exhaust under static conditions of the vehicle.
During after-market static filling, the first pump body 201, the second pump body 301 and the third pump body 401 are all in an operating state.
The air in the battery temperature control loop 20 and the air conditioning refrigeration loop 30 is reversely discharged to the expansion kettle 10 along the first branch pipe 101 and the second branch pipe 102. Synchronously, as the air in the battery temperature control loop 20 and the air conditioning and refrigerating loop 30 is discharged, in order to maintain the pressure in the loop unchanged, the liquid medium in the expansion kettle 10 is supplemented into the battery temperature control loop 20 and the air conditioning and refrigerating loop 30 along the first branch pipe 101 and the second branch pipe 102 in the forward direction, so that synchronous operation of liquid supplementing and air exhausting is realized.
The electric drive temperature control circuit 40 realizes fluid replacement through a third branch pipe 103, and realizes liquid medium backflow and air discharge through a fourth branch pipe 104.
3) And supplementing liquid and exhausting gas in the running state of the vehicle.
Each loop is theoretically not lack of liquid medium or lack of quantity in the running state of the vehicle.
For example, when the battery and the passenger cabin are simultaneously refrigerated and air exists in the battery temperature control circuit 20 and the air-conditioning refrigeration circuit 30 and air needs to be exhausted, or when liquid media are absent in the battery temperature control circuit 20 and the air-conditioning refrigeration circuit 30 and liquid is needed to be replenished, the air in the battery temperature control circuit 20 and the air-conditioning refrigeration circuit 30 is reversely discharged to the expansion kettle 10 along the first branch pipe 101 and the second branch pipe 102 by itself, and the liquid media in the expansion kettle 10 are synchronously replenished to the battery temperature control circuit 20 and the air-conditioning refrigeration circuit 30 along the first branch pipe 101 and the second branch pipe 102. Since the amount of liquid medium missing in the battery temperature control circuit 20 and the air conditioning refrigeration circuit 30 is generally not large, the fluid replenishment process time is not too long accordingly.
If no air is present in the battery temperature control circuit 20 and the air conditioning refrigeration circuit 30 and no liquid medium is present in the battery temperature control circuit 20 and the air conditioning refrigeration circuit 30, the liquid medium inside the first leg 101 and the second leg 102 is in a stationary state.
The expansion kettle 10 is connected with the electric drive temperature control loop 40 in parallel through the third branch pipe 103 and the fourth branch pipe 104, when the third pump body 401 works, the expansion kettle 10 participates in the circulation of the liquid medium of the electric drive temperature control loop 40, and at the moment, the fourth branch pipe 104 can discharge the air in the electric drive temperature control loop 40 into the expansion kettle 10 and carry out circulation fluid replacement through the third branch pipe 103.
The electric drive temperature control loop 40 is connected with the battery temperature control loop 20 and the air conditioner refrigerating loop 30 in parallel, and when the vehicle is in a running state, the first branch pipe 101 and the second branch pipe 102 are utilized to realize rapid liquid supplementing and air exhausting of the battery temperature control loop 20 and the air conditioner refrigerating loop 30. After the battery temperature control loop 20 and the air conditioning refrigeration loop 30 are replenished, no flow exists between the first branch pipe 101 and the second branch pipe 102 and the expansion kettle 10. After the thermal management system is stable, the expansion kettle 10 only participates in the circulation of the electric drive temperature control loop 40, so that no flowing heat exchange can be generated in the expansion kettle 10, and the problem of heat leakage is avoided.
The application can realize the liquid supplementing and air exhausting requirements of the battery temperature control loop 20, the air conditioning refrigeration loop 30 and the electric drive temperature control loop 40 by adopting a physical structure, and has low cost without a control strategy and an electric control part.
The expansion kettle 10 disclosed by the application is simple in structure, only two interfaces of the liquid outlet m and the reflux outlet n are required to be arranged, and the internal part of the kettle body of the expansion kettle 10 does not need to be designed in a partitioned manner, so that the manufacturing difficulty is reduced. And the design of a single expansion kettle has smaller requirement on the arrangement space in the cabin, thereby greatly reducing the arrangement difficulty of the expansion kettle 10.
As a preferred implementation of this embodiment, referring to fig. 1, the liquid outlet of the refrigerator 302 is communicated with the liquid inlet a of the first three-way valve 50, the liquid outlet b of the first three-way valve 50 is communicated with the cold air core 303,
The liquid outlet of the radiator 404 is communicated with the liquid inlet d of the second three-way valve 60, and the liquid outlet f of the second three-way valve 60 is communicated with the liquid inlet of the third pump body 401;
the liquid outlet c of the first three-way valve 50 and the liquid outlet of the heating element 402 are communicated with the liquid inlet of the battery 202, and the liquid outlet of the battery 202 is communicated with the liquid inlet of the first pump body 201, the liquid inlet of the second pump body 301 and the liquid inlet e of the second three-way valve 60.
The heating element 402 is connected in parallel with the warm air core 80 of the air conditioning assembly, the liquid outlet of the heating element 402 is communicated with the liquid inlet g of the third three-way valve 70, the liquid outlet h of the third three-way valve 70 is communicated with the liquid inlet of the battery 202, the liquid outlet i of the third three-way valve 70 is communicated with the liquid inlet of the warm air core 80, and the liquid outlet of the warm air core 80 is communicated with the liquid inlet e of the second three-way valve 60.
By the arrangement of the first three-way valve 50, the second three-way valve 60 and the third three-way valve 70, various operation modes of the thermal management system can be realized. Specific examples are as follows.
By opening the liquid inlet a and the liquid outlet b of the first three-way valve 50, the liquid medium with lower temperature generated by the refrigerator 302 can flow to the cold air core 303 of the air conditioner assembly through the liquid outlet b of the first three-way valve 50, so as to realize the refrigeration of the passenger cabin.
By opening the liquid inlet a and the liquid outlet c of the first three-way valve 50, the liquid medium with low temperature generated by the refrigerator 302 can flow to the battery 201 through the liquid outlet c of the first three-way valve 50, so as to realize cooling of the battery 201.
By opening the liquid inlet e and the liquid outlet f of the second three-way valve 60, the liquid medium discharged from the liquid outlet of the battery 201 can flow into the third pump body 401 through the liquid outlet f of the second three-way valve 60, i.e., the battery temperature control circuit 20 is discharged into the electric drive temperature control circuit 40.
By opening the liquid inlet d and the liquid outlet f of the second three-way valve 60, the liquid medium discharged by the radiator 404 can flow into the third pump body 401 again through the liquid outlet f, and then be conveyed to the heating element 402 by the third pump body 401, so as to heat the liquid medium.
By opening the liquid inlet g and the liquid outlet h of the third three-way valve, the liquid medium with higher temperature generated by the heating element 402 can flow to the battery 201 through the liquid outlet h of the third three-way valve, so as to realize temperature rise of the battery 201.
By opening the liquid inlet g and the liquid outlet i of the third three-way valve, the liquid medium with higher temperature generated by the heating element 402 can flow to the warm air core 80 of the air conditioner assembly through the liquid outlet i of the third three-way valve, so as to heat the passenger cabin.
In one embodiment, a vehicle is provided that includes the vehicle thermal management system of any of the above embodiments.
The above embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention.
Claims (6)
1. The vehicle thermal management system is characterized by comprising an expansion kettle (10), and a battery temperature control loop (20), an air-conditioning refrigeration loop (30) and an electric drive temperature control loop (40) which are communicated with the expansion kettle (10);
The first branch pipe (101) connected with the liquid outlet m of the expansion kettle (10) is communicated with a liquid inlet of a first pump body (201) in the battery temperature control loop (20);
The second branch pipe (102) connected with the liquid outlet m of the expansion kettle (10) is communicated with a liquid inlet of a second pump body (301) in the air conditioner refrigerating circuit (30);
A third branch pipe (103) connected with a liquid outlet m of the expansion kettle (10) is communicated with a liquid inlet of a third pump body (401) in the electric drive temperature control loop (40);
The battery temperature control circuit (20) comprises a first pump body (201) and a battery (202) which are connected in series through a pipeline;
The air conditioner refrigerating loop (30) comprises a second pump body (301), a refrigerator (302) and a cold air core body (303) of the air conditioner assembly which are connected in series through pipelines;
the electric drive temperature control loop (40) comprises a third pump body (401), a heating element (402), an electric drive assembly (403) and a radiator (404) which are connected in series through pipelines;
-said battery temperature control circuit (20) is connected in parallel with said refrigerator (302) and said heating element (402) by means of a pipeline;
the liquid outlet of the refrigerator (302) is communicated with the liquid inlet a of the first three-way valve (50), the liquid outlet b of the first three-way valve (50) is communicated with the cold air core (303),
The liquid outlet of the radiator (404) is communicated with the liquid inlet d of the second three-way valve (60), and the liquid outlet f of the second three-way valve (60) is communicated with the liquid inlet of the third pump body (401);
The liquid outlet c of the first three-way valve (50) and the liquid outlet of the heating element (402) are communicated with the liquid inlet of the battery (202), and the liquid outlet of the battery (202) is communicated with the liquid inlet of the first pump body (201), the liquid inlet of the second pump body (301) and the liquid inlet e of the second three-way valve (60);
The heating element (402) is connected in parallel with a warm air core (80) of the air conditioner assembly, a liquid outlet of the heating element (402) is communicated with a liquid inlet g of a third three-way valve (70), a liquid outlet h of the third three-way valve (70) is communicated with a liquid inlet of a battery (202), a liquid outlet i of the third three-way valve (70) is communicated with a liquid inlet of the warm air core (80), and a liquid outlet of the warm air core (80) is communicated with a liquid inlet e of a second three-way valve (60).
2. The vehicle thermal management system according to claim 1, wherein an exhaust pipe is connected between the expansion kettle (10) and the battery temperature control circuit (20), the air conditioning and cooling circuit (30) and/or the electric drive temperature control circuit (40).
3. The vehicle thermal management system according to claim 2, wherein the expansion tank (10) is arranged at the highest point of the vehicle thermal management system, the first branch pipe (101) is used as an exhaust pipe between the expansion tank (10) and the battery temperature control circuit (20), and the second branch pipe (102) is used as an exhaust pipe between the expansion tank (10) and the air conditioning refrigeration circuit (30).
4. The vehicle thermal management system according to claim 3, wherein the inner diameters of said first branch pipe (101) and said second branch pipe (102) are 16mm or more.
5. A vehicle thermal management system according to claim 3, wherein a fourth branch pipe (104) is connected between the expansion kettle (10) and the electric drive temperature control loop (40), a liquid outlet of the fourth branch pipe (104) is communicated with a reflux port n of the expansion kettle (10), and liquid medium and air in the electric drive temperature control loop (40) are refluxed into the expansion kettle (10) by the fourth branch pipe (104).
6. A vehicle characterized by comprising the vehicle thermal management system according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411164806.4A CN119037081B (en) | 2024-08-23 | 2024-08-23 | Vehicle thermal management system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411164806.4A CN119037081B (en) | 2024-08-23 | 2024-08-23 | Vehicle thermal management system and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119037081A CN119037081A (en) | 2024-11-29 |
| CN119037081B true CN119037081B (en) | 2025-09-16 |
Family
ID=93568685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411164806.4A Active CN119037081B (en) | 2024-08-23 | 2024-08-23 | Vehicle thermal management system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119037081B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110949093A (en) * | 2019-12-18 | 2020-04-03 | 广州小鹏汽车科技有限公司 | Thermal management system of vehicle and vehicle |
| CN213501745U (en) * | 2020-11-20 | 2021-06-22 | 睿驰电装(大连)电动系统有限公司 | Heat management system of automobile and electric automobile |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7220365B2 (en) * | 2001-08-13 | 2007-05-22 | New Qu Energy Ltd. | Devices using a medium having a high heat transfer rate |
| CN110281735B (en) * | 2019-06-24 | 2021-01-01 | 浙江吉利控股集团有限公司 | A new energy vehicle thermal management system and its control method |
| CN111532100B (en) * | 2020-03-31 | 2024-04-12 | 浙江吉利控股集团有限公司 | An integrated thermal management system for hybrid electric vehicles |
| CN114056052B (en) * | 2021-12-14 | 2024-03-22 | 智己汽车科技有限公司 | An electric vehicle thermal management circuit, control method and pure electric vehicle |
| CN118238583A (en) * | 2024-05-09 | 2024-06-25 | 亿咖通(湖北)技术有限公司 | Electric automobile thermal management system and method |
-
2024
- 2024-08-23 CN CN202411164806.4A patent/CN119037081B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110949093A (en) * | 2019-12-18 | 2020-04-03 | 广州小鹏汽车科技有限公司 | Thermal management system of vehicle and vehicle |
| CN213501745U (en) * | 2020-11-20 | 2021-06-22 | 睿驰电装(大连)电动系统有限公司 | Heat management system of automobile and electric automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119037081A (en) | 2024-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107234941B (en) | Centralized heat management system for passenger car | |
| CN116968543B (en) | Integrated thermal management integrated module | |
| CN111959224A (en) | Heat pump system and vehicle | |
| CN208842173U (en) | Vehicles and their thermal management systems | |
| CN111422027B (en) | Vehicle thermal management system and control method thereof | |
| CN115107457A (en) | Thermal management system based on multi-way valve and electric device | |
| CN112339526A (en) | Heat accumulating type truck parking air conditioning system | |
| CN119037081B (en) | Vehicle thermal management system and vehicle | |
| CN216011332U (en) | Water-loop heat pump type electric automobile heat management system based on phase change heat storage | |
| CN214841288U (en) | Central air conditioning system with independent temperature and humidity control for water cold/heat storage and flow state ice storage | |
| CN222040175U (en) | Thermal management system and vehicle | |
| CN219076949U (en) | Range-extending type electric automobile thermal management system | |
| CN221623493U (en) | Novel integrated module runner plate for automobile thermal management | |
| CN218489451U (en) | Pure electric vehicle and thermal management system thereof | |
| CN218672722U (en) | Double-tank double-circulation closed air-conditioning refrigeration water system | |
| CN117515695A (en) | Cold accumulation system and heat pump unit | |
| CN115416837A (en) | Marine refrigerating system and ship | |
| CN211011723U (en) | Air conditioner and cold liquid integrated system | |
| CN219177805U (en) | Air source heat pump system | |
| CN223121681U (en) | A dual-source heat pump hot water system | |
| CN222886299U (en) | Thermal management system and vehicle | |
| CN223108909U (en) | A cooling system for hydrogen energy vehicle | |
| CN223424113U (en) | Liquid cooling system of engine and automobile | |
| CN221585064U (en) | Thermal management device and vehicle | |
| CN223618542U (en) | Direct and indirect mixed air conditioner heat pump system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 100089 No.10 Daoche Gou, Haidian District, Beijing, South Building of the Scientific Research Building in the West Yard, 3rd Floor Applicant after: Chenzhi Automotive Technology Group Co.,Ltd. Applicant after: Chongqing Changan Automobile Co.,Ltd. Address before: 3rd Floor, South Building, Xiyuan Research Building, No. 10 Chedao Gou, Haidian District, Beijing Applicant before: China Changan Automobile Group Co.,Ltd. Country or region before: China Applicant before: Chongqing Changan Automobile Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |