CN113232488A

CN113232488A - Thermal management system, control method thereof and vehicle

Info

Publication number: CN113232488A
Application number: CN202110666182.6A
Authority: CN
Inventors: 张东斌
Original assignee: Guangzhou Xiaopeng Motors Technology Co Ltd
Current assignee: Guangzhou Xiaopeng Motors Technology Co Ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-08-10

Abstract

The invention discloses a thermal management system, a control method thereof and a vehicle. The thermal management system comprises a power battery, a heat sink, an electric drive component and a thermal management integrated unit. The thermal management integrated unit includes a flow field plate, a pump assembly, and a valve assembly. A plurality of flow channels are formed in the flow channel plate. The thermal management system has a first mode of operation in which the battery water pump and/or the electric machine water pump are activated and the valve assembly is in a first predetermined state. The valve assembly is connected with an inlet of the battery water pump, an outlet of the radiator and an inlet of the electric driving component, the battery water pump and/or the motor water pump convey cooling liquid to the power battery and then enter the electric driving component through the valve assembly, the cooling liquid flows through the electric driving component and then enters the radiator for cooling, and the cooling liquid flowing out of the radiator flows back to the inlet of the battery water pump and/or the motor water pump through the valve assembly. Therefore, the power battery and the electric driving component can share the same radiator for heat dissipation and cooling through controlling the state of the valve component, and the cost is reduced.

Description

Thermal management system, control method thereof and vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a thermal management system, a control method thereof and a vehicle.

Background

At present, new energy vehicles are widely popularized, batteries can generate large heat in the working and charging processes, and if the heat is not timely dissipated, the batteries are easily overheated, safety accidents are easily caused, and the charging efficiency is reduced. In the related art, a separate circuit or a cooling device is generally used to cool the battery, which is costly.

Disclosure of Invention

The embodiment of the invention provides a thermal management system, a control method thereof and a vehicle.

The thermal management system of an embodiment of the present invention is for a vehicle, and includes a power battery, a heat sink, an electric drive component coupled to the heat sink, and a thermal management integrated unit coupled to the heat sink, the power battery, and the electric drive component, the thermal management integrated unit including:

the runner plate is internally provided with a plurality of runners; and

the pump assembly and the valve assembly are integrally arranged on the runner plate, the pump assembly comprises a battery water pump and a motor water pump, an inlet of the battery water pump is connected with the valve assembly through the runner, an outlet of the battery water pump is connected with an inlet of the power battery, an inlet of the motor water pump is connected with the valve assembly, an outlet of the motor water pump is connected with an inlet of the electric driving part, and an outlet of the power battery is connected with the valve assembly;

the valve assembly is also connected with the electric drive component and the heat radiator and is used for controlling the flow direction of the cooling liquid in the thermal management integrated unit;

the thermal management system has a first operating mode in which at least one of the battery water pump and the motor water pump is activated, the valve assembly is in a first predetermined state in which the valve assembly communicates between an inlet of the battery water pump and an outlet of the heat sink and connects the outlet of the power battery to an inlet of the electric drive component, the battery water pump and/or the motor water pump delivers coolant to the power battery and then through the valve assembly into the electric drive component, the coolant flows through the electric drive component and then into the heat sink for cooling, and the coolant flowing out of the heat sink further flows back through the valve assembly to the inlet of the battery water pump and/or the motor water pump.

In some embodiments, the thermal management system comprises a water-water heat exchanger and a battery cooler which are integrally arranged on the runner plate, wherein a coolant input end of the battery cooler is communicated with a first coolant input end and a first coolant output end of the water-water heat exchanger, the first coolant output end of the water-water heat exchanger is connected with the valve assembly through the runner, and a coolant input end of the battery cooler is connected with an outlet of the power battery;

a first interface, a second interface, a third interface, a fourth interface and a fifth interface are formed on the runner plate, and the valve assembly comprises a first five-way valve and a second five-way valve;

the third end of the first five-way valve is communicated with the first interface through the flow passage, and the first interface is connected with an outlet of the radiator;

the fourth end of the first five-way valve is connected with the fifth end of the second five-way valve through the flow passage;

the first end of the second five-way valve is connected with the second interface and the third interface through the flow passage, the second interface is connected with the inlet of the radiator, and the third interface is connected with the outlet of the electric driving component;

the second end of the second five-way valve is connected with an inlet of the motor water pump through the flow channel, the motor water pump passes through the fourth interface of the flow channel, and the fourth interface is connected with an inlet of the electric driving component;

the third end of the second five-way valve is connected with the first cooling liquid output end of the water-water heat exchanger through the flow channel;

the fourth end of the second five-way valve is connected with the inlet of the battery water pump through the flow channel, the battery water pump is communicated with the fifth interface through the flow channel, and the fifth interface is connected with the inlet of the power battery;

the fifth end of the second five-way valve is connected with the fourth end of the first five-way valve;

when the valve assembly is in a first preset state, the third end and the fourth end of the first five-way valve are communicated, the second end and the third end of the second five-way valve are communicated, and the fourth end and the fifth end of the second five-way valve are communicated.

In certain embodiments, the heat management system further comprises a compressor, an outdoor heat exchanger, a gas-liquid separator, an evaporator, a liquid heater, and a warm air core connected to the heat management integrated unit, the pump assembly further comprises a heating water pump integrally disposed on the runner plate, and the heat management integrated unit further comprises a water-cooled condenser integrally disposed on the runner plate;

the refrigerant input end of the water-cooled condenser is connected with the compressor, the refrigerant output end of the water-cooled condenser is connected with the inlet of the outdoor heat exchanger, the refrigerant input end of the battery cooler is connected with the outlet of the outdoor heat exchanger, and the refrigerant output end of the battery cooler is connected with the inlet of the gas-liquid separator and the outlet of the evaporator;

the runner plate is also provided with a sixth interface, a seventh interface and an eighth interface;

the first end of the first five-way valve is connected with the eighth interface through the flow passage, and the eighth interface is connected with the outlet of the warm air core;

the second end of the first five-way valve is communicated with the inlet of the heating water pump through the flow channel, the outlet of the heating water pump is connected with the cooling liquid input end of the water-cooled condenser through the flow channel, and the cooling liquid output end of the water-cooled condenser is connected with the inlet of the liquid heater;

the fifth end of the first five-way valve is connected with the second cooling liquid output end of the water-water heat exchanger through the flow channel;

and a second cooling liquid input end of the water-water heat exchanger is connected with the sixth interface and the seventh interface, the sixth interface is connected with an inlet of the warm air core, and the seventh interface is connected with an outlet of the liquid heater.

a first interface, a second interface, a third interface, a fourth interface and a fifth interface are formed on the runner plate, and the valve assembly comprises a first four-way valve, a second four-way valve, a first three-way valve and a second three-way valve;

the first end of the first four-way valve is connected with the third end of the first three-way valve;

the third end of the first four-way valve is communicated with the first interface through the flow passage, and the first interface is connected with the outlet of the radiator;

the fourth end of the first four-way valve is communicated with the second end of the second three-way valve through the flow passage;

the first end of the second three-way valve is connected with the second port and a third port through the flow passage, the second port is connected with the inlet of the radiator, and the third port is connected with the outlet of the electric driving part;

the third end of the second three-way valve is communicated with the first end of the second four-way valve,

the second end of the second four-way valve is connected with the inlet of the motor water pump through the flow passage, the inlet of the motor water pump is communicated with the fourth interface through the flow passage, and the fourth interface is connected with the inlet of the electric driving part;

the third end of the second four-way valve is connected with the first cooling liquid output end of the water-water heat exchanger through the flow channel;

the fourth end of the second four-way valve is connected with an inlet of a battery water pump through the runner, the battery water pump is communicated with the fifth interface through the runner, and the fifth interface is connected with an inlet of the power battery;

when the valve assembly is in the first preset state, a third end and a fourth end of the first four-way valve are communicated, a second end and a third end of the second three-way valve are communicated, a first end and a fourth end of the second four-way valve are connected, and a second end and a third end of the second four-way valve are communicated.

the runner plate is also provided with a fifth interface, a sixth interface, a seventh interface and an eighth interface;

a first end of the first three-way valve is connected with the eighth interface through the flow passage, and a second end of the first three-way valve is connected with a second cooling liquid output end of the water-water heat exchanger through the flow passage;

the second end of the first four-way valve is communicated with the inlet of the heating water pump through the runner, the outlet of the heating water pump is connected with the cooling liquid input end of the water-cooled condenser through the runner, and the cooling liquid output end of the water-cooled condenser is connected with the inlet of the liquid heater;

a first interface, a second interface, a third interface, a fourth interface and a fifth interface are formed on the runner plate, and the valve assembly comprises an eight-way valve;

the third end of the eight-way valve is communicated with the first interface through the flow passage, and the first interface is connected with an outlet of the radiator;

the fourth end of the eight-way valve is connected with the second interface and the third interface through the flow passage, the second interface is connected with the inlet of the radiator, and the third interface is connected with the outlet of the electric driving component;

the fifth end of the eight-way valve is communicated with an inlet of the motor water pump through the flow passage, the motor water pump is connected with the fourth interface through the flow passage, and the fourth interface is connected with an inlet of the electric driving component;

the sixth end of the eight-way valve is connected with an inlet of a battery water pump through the flow channel, the battery water pump is communicated with the fifth interface through the flow channel, and the fifth interface is connected with an inlet of the power battery;

the seventh end of the eight-way valve is connected with the first cooling liquid output end of the water-water heat exchanger through the flow channel;

when the valve assembly is in the first preset state, the third end and the sixth end of the eight-way valve are communicated, and the fifth end and the seventh end of the eight-way valve are communicated.

In some embodiments, the heat management system further comprises a compressor, an outdoor heat exchanger, a gas-liquid separator, an evaporator, a liquid heater and a warm air core which are connected with the heat management integrated unit, the heat management system further comprises a heating water pump, a liquid heater and a warm air core, and the heat management integrated unit further comprises a water-cooled condenser which is integrally arranged on the runner plate;

the first end of the eight-way valve is connected with the eighth interface through the flow passage, and the eighth interface is connected with the outlet of the warm air core body;

the second end of the eight-way valve is communicated with the inlet of the heating water pump through the flow channel, the outlet of the heating water pump is connected with the cooling liquid input end of the water-cooled condenser through the flow channel, and the cooling liquid output end of the water-cooled condenser is connected with the inlet of the liquid heater;

In some embodiments, the thermal management system further has a second operating mode, in the second operating mode, both the battery water pump and the compressor are started, the valve assembly is in a second preset state to communicate a first coolant output end of the water-water heat exchanger and an inlet of the battery water pump, the battery water pump delivers coolant to the power battery and then flows through the battery cooler, the coolant flows through the water-cooled condenser under the action of the compressor and then enters the outdoor heat exchanger for cooling, and the cooled coolant exchanges heat with the coolant flowing through the battery cooler when flowing through the battery cooler to cool the coolant, so as to cool the power battery.

The control method implemented by the present invention is applied to the thermal management system of the above embodiment, and the control method of the thermal management system includes:

acquiring the temperature of the power battery;

controlling at least one of the battery water pump and the motor water pump to start based on the temperature of the power battery and controlling the valve assembly to be in a first preset state to enable the thermal management system to enter a first working mode so as to cool the power battery.

In some embodiments, the thermal management system comprises a water-water heat exchanger and a battery cooler which are integrally arranged on the runner plate, wherein a coolant input end of the battery cooler is communicated with a first coolant input end and a first coolant output end of the water-water heat exchanger, the first coolant output end of the water-water heat exchanger is connected with the valve assembly through the runner, and a coolant input end of the battery cooler is connected with an outlet of the power battery; the valve assembly is characterized in that a first interface, a second interface, a third interface, a fourth interface and a fifth interface are formed on the runner plate, and the valve assembly comprises a first five-way valve and a second five-way valve;

the controlling the valve assembly to a first preset state to cause the thermal management system to enter a first working mode comprises:

and controlling the third end and the fourth end of the first five-way valve to be communicated, the second end and the third end of the second five-way valve to be communicated, and the fourth end and the fifth end of the second five-way valve to be communicated so as to enable the thermal management system to enter a first working mode.

and controlling a third end and a fourth end of the first four-way valve to be communicated, a second end and a third end of the second three-way valve to be communicated, a first end and a fourth end of the second four-way valve to be connected, and a second end and a third end of the second four-way valve to be communicated so as to enable the heat management system to enter a first working mode.

and controlling the third end and the sixth end of the eight-way valve to be communicated, and controlling the fifth end and the seventh end of the eight-way valve to be communicated so as to enable the thermal management system to enter a first working mode.

the heat management system also comprises a compressor, an outdoor heat exchanger, a gas-liquid separator, an evaporator, a liquid heater and a warm air core body which are connected with the heat management integrated unit, the pump assembly also comprises a heating water pump which is integrally arranged on the runner plate, and the heat management integrated unit also comprises a water-cooled condenser which is integrally arranged on the runner plate;

the control method of the thermal management system comprises the following steps:

under the condition that the temperature of the power battery is higher than a first preset temperature and lower than a second preset temperature, controlling the valve assembly to be in a first preset state to enable the thermal management system to enter the first working mode;

under the condition that the temperature of the power battery is higher than the second preset temperature, controlling the valve assembly to be in a second preset state so as to enable the thermal management system to enter a second working mode;

in the second working mode, the battery water pump and the compressor are both started, the valve assembly is communicated with a first cooling liquid output end of the water-water heat exchanger and an inlet of the battery water pump, the battery water pump conveys cooling liquid to the power battery and then flows through the battery cooler, a cooling medium flows through the water-cooled condenser under the action of the compressor and then enters the outdoor heat exchanger for cooling, and the cooled cooling medium exchanges heat with the cooling liquid flowing through the battery cooler when flowing through the battery cooler so as to cool the cooling liquid, so that the power battery is cooled.

The vehicle provided by the embodiment of the invention comprises a vehicle body and the thermal management system provided by the embodiment, wherein the thermal management system is installed on the vehicle body.

In the thermal management system, the control method and the vehicle, the power battery and the electric drive component can share the same radiator for heat dissipation and cooling by controlling the state of the valve component, so that the cost is reduced. Meanwhile, the pump assembly, the valve assembly, the water-cooled condenser, the water-water heat exchanger, the battery cooler and other elements are integrally arranged on the flow channel plate, so that the arrangement space and the wiring pipeline are saved, and the cost is reduced.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a thermal management integrated unit according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a thermal management system according to an embodiment of the present invention in a first mode of operation;

FIG. 4 is an exploded isometric view of a thermal management integration unit according to an embodiment of the present invention;

FIG. 5 is a schematic plan view of a thermal management integrated unit according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of another planar structure of a thermal management integrated unit according to an embodiment of the present invention;

FIG. 7 is a schematic perspective view of another embodiment of a thermal management integrated unit;

FIG. 8 is a schematic structural view of a flow field plate of an integrated thermal management unit according to an embodiment of the present invention;

FIG. 9 is a schematic plan view of a portion of the structure of a thermal management integrated unit in accordance with an embodiment of the present invention;

FIG. 10 is a schematic perspective view of a portion of the structure of a thermal management integrated unit according to an embodiment of the present invention;

FIG. 11 is a partially exploded schematic view of a thermal management integrated unit according to an embodiment of the present invention;

FIG. 12 is another schematic illustration of a first mode of operation of the thermal management system of an embodiment of the present invention;

FIG. 13 is a schematic illustration of yet another embodiment of a first mode of operation of a thermal management system in accordance with an embodiment of the present invention;

FIG. 14 is a schematic representation of a second mode of operation of the thermal management system of an embodiment of the present invention;

FIG. 15 is another schematic illustration of a second mode of operation of the thermal management system of an embodiment of the present invention;

FIG. 16 is a schematic illustration of yet another mode of operation of the thermal management system in accordance with an embodiment of the present invention;

FIG. 17 is a flow chart illustrating a method of controlling a thermal management system in accordance with an embodiment of the present invention;

fig. 18 is another flowchart illustrating a control method of the thermal management system according to the embodiment of the present invention.

Description of the main element symbols:

the heat management integrated unit 100, the runner plate 101, the upper plate 102, the lower plate 103, the runner groove 104, the fixed connection 105, the pump assembly 106, the heating water pump 107, the battery water pump 108, the motor water pump 109, the valve assembly 110, the water-cooled condenser 111, the water-water heat exchanger 112, the battery cooler 113, the kettle 114, the mounting seat 115, the first refrigerant interface 116, the second refrigerant interface 117, the third refrigerant interface 118, the first throttling device 119, the second throttling device 120, the stop valve 121, the check valve 122, the pressure temperature sensor 123, the temperature sensor 124, the electrically controlled connection element 125, the connector 126, the lead 127, the first five-way valve 136, the second five-way valve 137, the first four-way valve 138, the second four-way valve 139, the first three-way valve 140, the second three-way valve 141, and the eight-way valve 142;

the system comprises a thermal management system 200, a compressor 201, an outdoor heat exchanger 202, a radiator 203, an electric drive component 204, a power battery 205, an evaporator 206, a warm air core 207, a liquid heater 208, a gas-liquid separator 209, a third throttling device 210 and an external stop valve 211;

vehicle 300, body 301.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, embodiments of the invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1, a vehicle 300 according to an embodiment of the present invention includes a vehicle body 301 and a thermal management system 200 according to an embodiment of the present invention, where the thermal management system 200 is mounted on the vehicle body 301. Specifically, the vehicle 300 may be a hybrid vehicle or an electric vehicle, and is not particularly limited.

Referring to fig. 2 and 3, the thermal management system 200 includes a compressor 201, an outdoor heat exchanger 202, a radiator 203, an electric drive component 204, a power battery 205, an evaporator 206, a warm air core 207, a liquid heater 208, a gas-liquid separator 209, and the thermal management integrated unit 100 according to the embodiment of the present invention, where the compressor 201 is configured to compress and transport a refrigerant, the gas-liquid separator 209 is connected to an inlet of the compressor 201, the outdoor heat exchanger 202 is configured to introduce the refrigerant to exchange heat with air outside the vehicle 300, the evaporator 206 is configured to introduce the refrigerant to cool a passenger compartment of the vehicle 300, the warm air core 207 is configured to condition the passenger compartment of the vehicle 300 to heat, and the liquid heater 208 is configured to heat coolant.

The radiator 203 is used for introducing cooling liquid to cool the cooling liquid, the electric driving component 204 may include a driving motor of the vehicle 300, a speed reducer, a charging distribution module, and an on-board controller, the number of the driving motors may be plural, for example, the driving motor may include a front motor, a rear motor, and the like, the speed reducer may include a front speed reducer and a rear speed reducer, the on-board controller may include a processor, a large screen controller, a front motor controller, a rear motor controller, an automatic driving controller, and other electric control elements, the driving motor is connected with the power battery 205 to drive the vehicle 300 to run by electric energy, various elements inside the electric driving component 204 are connected by a cooling liquid pipeline, and the cooling liquid in the cooling liquid pipeline may be used for heating or cooling the electric driving component 204.

In addition, referring to fig. 3, in the embodiment of the present invention, the outdoor heat exchanger 202 and the radiator 203 may jointly form a front-end heat dissipation module of the vehicle 300, and the thermal management system 200 may further include an electronic fan 212, where the electronic fan 212 may be disposed corresponding to the outdoor heat exchanger 202 and the radiator 203, and the electronic fan 212 is configured to form an air flow passing through the outdoor heat exchanger 202 and the radiator 203 so as to enable the air to fully exchange heat with the refrigerant in the outdoor heat exchanger 202 and the coolant in the radiator 203.

In the embodiment of the present invention, the warm air core 207 and the evaporator 206 may jointly form an air conditioning module of the vehicle 300, the warm air core 207 may be used to heat the passenger compartment, the evaporator 206 may be used to cool the passenger compartment, the warm air core 207 and the evaporator 206 may also be provided with an electronic fan to implement hot air and cold air, the warm air core 207 and the evaporator 206 may share one fan or two separate fans, which is not limited herein.

Referring to fig. 3, an air quality sensor 221 and an external temperature sensor 220 may be further disposed on a front-end heat dissipation module of the vehicle 300 formed by the outdoor heat exchanger 202 and the radiator 203, and respectively used for detecting air quality and temperature outside the passenger compartment. An outdoor heat exchanger outlet temperature sensor 213 is further provided at an outlet of the outdoor heat exchanger 202 to collect an outlet temperature of the outdoor heat exchanger 202, a compressor discharge temperature sensor 214 is further provided at an outlet of the compressor 201 to detect a temperature at an outlet of the compressor 201, and a low pressure sensor 215 is further provided at an inlet of the gas-liquid separator 209 or at inlets of the gas-liquid separator 209 and the compressor 201 to detect a pressure of the refrigerant returned to the gas-liquid separator 209 and the compressor 201. A surface temperature sensor 216 for detecting the surface temperature of the evaporator 206 is also provided on the surface of the evaporator 206. A first water temperature sensor 218 is also provided at the outlet of the power battery 205, and is used for detecting the temperature of the cooling liquid flowing out of the power battery 205 to feed back the temperature of the power battery 205. At the inlet of the electric drive component 204 there is also provided a second water temperature sensor 219 for sensing the temperature of the coolant flowing out of the electric drive component 204. In addition, the thermal management system 200 may further include a room sensor 222, where the room sensor 222 is used to detect the humidity of the passenger compartment and the temperature of the window glass in the vehicle.

Referring to fig. 2 to 8, the integrated thermal management unit 100 according to the embodiment of the present invention includes a flow channel plate 101, a pump assembly 106, a valve assembly 110, a water-cooled condenser 111, a water-water heat exchanger 112, and a battery cooler 113.

A plurality of flow channels are formed in the flow channel plate 101, a pump assembly 106 and a valve assembly 110 are integrally arranged on the flow channel plate 101, the pump assembly 106 comprises a heating water pump 107, a battery water pump 108 and a motor water pump 109, inlets of the heating water pump 107, the battery water pump 108 and the motor water pump 109 are connected with the valve assembly 110 through the flow channels, and a water-cooled condenser 111, a water-water heat exchanger 112 and a battery cooler 113 are also integrally arranged on the flow channel plate 101.

Referring to fig. 9 to 11, the water-cooled condenser 111 includes a coolant input end 1113 and a coolant output end 1114 connected to each other, the coolant input end 1113 of the water-cooled condenser 111 is connected to the outlet of the heating water pump 107 through the flow channel in the flow channel plate 101, and the coolant output end 1114 of the water-cooled condenser 111 is used for being connected to the inlet of the liquid heater 208. The water-cooled condenser 111 further comprises a refrigerant input end 1111 and a refrigerant output end 1112 which are communicated, the refrigerant input end 1111 of the water-cooled condenser 111 is used for being connected with an outlet of the compressor 201, and the refrigerant output end 1112 of the water-cooled condenser 111 is used for being connected with an inlet of the outdoor heat exchanger 202.

The battery cooler 113 includes a refrigerant input end 1133 and a refrigerant output end, the refrigerant input end 1133 of the battery cooler 113 is used for being connected with the outlet of the outdoor heat exchanger 202, and the refrigerant output end of the battery cooler 113 is used for being connected with the inlet of the gas-liquid separator 209 and the outlet of the evaporator 206. Specifically, the coolant output end of the battery cooler 113 may include a first coolant output end 1134 and a second coolant output end 1135, the first coolant output end 1134 of the battery cooler 113 is configured to be connected to an inlet of the gas-liquid separator 209 of the vehicle 300, and the second coolant output end 1135 of the battery cooler 113 is configured to be connected to an outlet of the evaporator 206.

The battery cooler 113 further includes a coolant input 1131 and a coolant output 1132, the water-to-water heat exchanger 112 includes a first coolant input 1121 and a first coolant output 1122 in communication and a second coolant input 1123 and a second coolant output 1124 in communication,

the coolant input end 1131 of the battery cooler 113 is communicated with the first coolant input end 1121 and the first coolant output end 1122 of the water-water heat exchanger 112, the first coolant output end 1122 of the water-water heat exchanger 112 is connected with the valve assembly 110 through a flow channel in the flow channel plate 101, the coolant input end 1131 of the battery cooler 113 is used for being connected with an outlet of the power battery 205, and an outlet of the battery water pump 108 is used for being connected with an inlet of the power battery 205.

The second coolant input port 1123 of the water-water heat exchanger 112 is used for connecting with the outlet of the liquid heater 208 and the inlet of the heater core 207 through the flow channels in the flow channel plate 101, the second coolant output port 1124 of the water-water heat exchanger 112 is connected with the valve assembly 110 through the flow channels, the valve assembly 110 is also used for connecting with the electric driving component 204 and the radiator 203 of the vehicle 300, and the valve assembly 110 is used for controlling the flow direction of the coolant in the thermal management integrated unit 100.

It can be understood that in the related art, with the popularization of new energy automobiles, the requirement on the overall automobile thermal management is higher and higher, and more parts are applied. If arrange according to the part, will occupy the space of extravagant front deck, and need connect with many root canals, fix with a plurality of supports, the cost is higher.

In the thermal management integrated unit 100, the thermal management system 200 and the vehicle 300 according to the embodiment of the invention, the pump assembly 106, the valve assembly 110, the water-cooled condenser 111, the water-water heat exchanger 112, the battery cooler 113 and other elements of the vehicle 300 are integrally arranged on the flow channel plate 101, and all the components are intensively arranged on the flow channel plate 101, so that the arrangement space and the routing pipeline are saved, and the cost is reduced. Meanwhile, the pump assembly 106, the valve assembly 110, the water-cooled condenser 111, the water-water heat exchanger 112, the battery cooler 113 and other elements are communicated through the flow channel arranged in the flow channel plate 101, so that external pipelines can be saved, meanwhile, the pressure loss caused by too long route of the refrigerant and the cooling liquid in the flow passing process can be avoided through short routing communication, and the refrigerating and heating effects are improved.

Specifically, in the embodiment of the present invention, various modes can be realized by controlling the connection manner of the respective valve ports of the valve assembly 110, for example, functions of air-conditioning cooling, power battery forced cooling, air-conditioning heating, power battery heating, natural heat dissipation of the electrically driven components, heat preservation of the battery by using the heat of the electrically driven components, dehumidification of the passenger compartment, heating of the passenger compartment by using the heat of the electrically driven components, deicing modes, and the like of the vehicle 300 can be realized.

Referring to fig. 2 to 5, in the embodiment of the present invention, the thermal management integrated unit 100 further includes a water bottle 114, the water bottle 114 is integrally disposed on the flow passage plate 101, the water bottle 114 is disposed on the top of the flow passage plate 101, the pump assembly 106 and the valve assembly 110 are integrally disposed on the bottom of the flow passage plate 101, and the battery cooler 113, the water-water heat exchanger 112 and the water-cooled condenser 111 are integrally disposed on the side of the flow passage plate 101.

In this way, the space on the top and bottom of the flow channel plate 101 and the space on the side can be fully used for integrating the components such as the water bottle 114, the pump assembly 106, the valve assembly 110 and the battery cooler 113, thereby further saving the arrangement space and improving the integration degree.

Specifically, referring to fig. 8, in the embodiment of the present invention, the runner plate 101 includes an upper plate 102 and a lower plate 103, the upper plate 102 is formed with a plurality of runner channels 104, and the upper plate 102 and the lower plate 103 are hermetically engaged to close the runner channels 104 to form a plurality of runners. The lower plate 103 can be used as a main body bearing structure, the pump assembly 106 and the valve assembly 110 are integrally arranged at the bottom of the lower plate 103 of the runner plate 101, a plurality of openings are formed on the lower plate 103, and the respective valve ports of the heating water pump 107, the battery water pump 108, the motor water pump 109 and the valve assembly 110 can be communicated with the runner of the runner plate 101 through the openings on the lower plate 103. The battery cooler 113, the water-water heat exchanger 112, and the water-cooled condenser 111 are integrally provided at the side of the lower plate 103. The water bottle 114 can be arranged on the top of the upper plate 102, an opening communicated with the heating water pump 107, the battery water pump 108 and the motor water pump 109 can be arranged on the upper plate 102, and the heating water pump 107, the battery water pump 108 and the motor water pump 109 are all communicated with the water bottle 114 through the flow passage and the opening of the upper plate 102. The pump assembly 106 and the valve assembly 110 are disposed at the bottom of the flow channel plate 101, the water-cooled condenser 111, the water-water heat exchanger 112 and the battery coolant are disposed at the side of the flow channel plate 101,

of course, it is understood that in other embodiments, a plurality of flow channel grooves 104 may be formed on the lower plate 103, or the flow channel grooves 104 may be formed on both the lower plate 103 and the upper plate 102, and the specific embodiment is not limited herein.

In such embodiments, the kettle 114 is used to store a cooling fluid, such as chilled water. The number of the kettles 114 may be multiple or single, and each pump may correspond to one kettle 114, or multiple pumps may correspond to one kettle 114, or multiple kettles 114 may correspond to one pump, which is not limited herein. A connector is formed at the top of the runner plate 101, and the water kettle 114 is mounted on the runner plate 101 and is communicated with the runner in the runner plate 101 through the connector and is communicated with the heating water pump 107, the battery water pump 108 and the motor water pump 109 through the runner, so that the heating water pump 107, the battery water pump 108 and the motor water pump 109 can all draw coolant from the water kettle 114 to be pumped to other parts of the thermal management integrated unit 100. The kettle 114 may be an expansion kettle 114.

In addition, referring to fig. 4, a water filling port 1141 is formed on the water bottle 114, the water filling port 1141 is sealed by a water filling cap 1142, and a user can unscrew the water filling cap 1142 to fill water into the water bottle 114 through the water filling port 1141.

Referring to fig. 2 and 4, in the embodiment of the present invention, a plurality of fixing connection portions 105 are formed on the lower plate 103 of the flow channel plate 101, the fixing connection portions 105 are protrudingly formed on the lower plate 103 of the flow channel plate 101, and the fixing connection portions 105 are used for connecting the vehicle body 301 of the vehicle 300 to integrally mount the entire thermal management integrated unit 100 on the vehicle body 301, so as to avoid the need to mount a plurality of parts on the vehicle, respectively, simplify the mounting process and save the mounting space. For example, as shown in fig. 5, the number of the fixing connection parts 105 may be 4, which are respectively located at four corners of the flow field plate 101. Of course, in other embodiments, the number of the fixing connection portions 105 may be less than 4 or more than 4, for example, 3 or 5, and preferably, in the embodiment of the present invention, in order to improve the stability of the installation, the number of the fixing connection portions 105 may be set to not less than 3.

Referring to fig. 10 and 11, in the embodiment of the present invention, the battery cooler 113 and the water-water heat exchanger 112 are integrally disposed, the coolant output end 1132 of the battery cooler 113 is matched with the first coolant input end 1121 of the water-water heat exchanger 112, and the battery cooler 113 and the water-water heat exchanger 112 share one coolant flow pipeline, that is, the battery cooler 113 and the water-water heat exchanger 112 are integrally formed, and the coolant flow pipeline of the battery cooler 113 and one coolant flow pipeline of the water-water heat exchanger 112 are reused, so that the arrangement of the battery cooler 113 and the water-water heat exchanger 112 can improve the degree of integration without connecting through an external connecting pipeline, thereby saving the cost, shortening the routing length of the coolant, and avoiding the pressure loss and the heat loss.

Referring to fig. 2 to 7 and 9 to 11, in an embodiment of the present invention, the thermal management integrated unit 100 further includes a mounting base 115, the mounting base 115 is integrally installed on the water-cooled condenser 111 and the battery cooler 113, an inlet, a first refrigerant port 116, a second refrigerant port 117, a third refrigerant port 118 and an outlet are formed on the mounting base 115, a channel is formed inside the mounting base 115 to communicate with the inlet, the inlet of the first refrigerant interface 116 is communicated with the refrigerant output end 1112 of the water-cooled condenser 111 in a matching manner, the first refrigerant interface 116 is connected with the inlet of the second refrigerant interface 117 in parallel, and the third refrigerant interface 118 is communicated with the outlet of the second refrigerant interface 117, that is, the first refrigerant interface 116 is connected with the refrigerant output end 1112 of the water-cooled condenser 111, and the second refrigerant interface 117 is connected with the refrigerant output end 1112 of the water-cooled condenser 111 and is connected with the first refrigerant interface 116 in parallel. The first refrigerant interface 116 is configured to be connected to an inlet of the outdoor heat exchanger 202 of the vehicle 300, the second refrigerant interface 117 is configured to be connected to an inlet of the evaporator 206 of the vehicle 300, and one end of the third refrigerant interface 118 is connected to the refrigerant input end 1133 of the battery cooler 113 in a matching manner, and the other end is configured to be connected to an outlet of the outdoor heat exchanger 202.

The thermal management integrated unit 100 further includes a first throttling device 119, a stop valve 121, and a check valve 122, the first throttling device 119 is mounted on the mounting seat 115 and is connected in series with the first refrigerant interface 116, and the first throttling device 119 may be a refrigerant throttling element such as an electronic expansion valve, which is used for adjusting the flow rate of the refrigerant entering the outdoor heat exchanger 202 and throttling the refrigerant before entering the outdoor heat exchanger 202. So, accessible mount pad 115 also integratively sets up first throttling arrangement 119 on flow field plate 101, further practice thrift the installation space, the degree of integrating has been improved, simultaneously, water cooled condenser 111 comes indirect connection outdoor heat exchanger 202 through mount pad 115, and like this, when first throttling arrangement 119 needs to be changed, the user need not to contact water cooled condenser 111, only need directly pull down mount pad 115 or directly pull down first throttling arrangement 119 from mount pad 115 can, the convenience and the security of operation have been improved.

A stop valve 121 is also mounted on the mounting seat 115, the stop valve 121 is connected in series between an inlet of the mounting seat 115 and the second refrigerant port 117, the stop valve 121 is used for communicating and interrupting the second refrigerant port 117 and the refrigerant output end 1112 of the water-cooled condenser 111, and the second refrigerant port 117 is used for connecting an inlet of the evaporator 206 of the vehicle 300. Therefore, on the one hand, the stop valve 121 is integrally installed on the installation base 115, so that the installation space can be further saved to improve the degree of integration, and on the other hand, the refrigerant can be controlled to firstly flow through the outdoor heat exchanger 202 or firstly flow through the evaporator 206 to realize the cooling and heating functions through the matching action of the first throttling device 119 and the stop valve 121.

In addition, referring to fig. 11, the third refrigerant interface 118 on the mounting seat 115 is communicated with the refrigerant input end 1133 of the battery cooler 113 and the second refrigerant interface 117, the check valve 122 is installed at the third refrigerant interface 118, the first refrigerant output end 1134 of the battery cooler 113 is used for being connected with the gas-liquid separator 209 of the vehicle 300, the gas-liquid separator 209 is connected with the compressor 201, and the second refrigerant output end 1135 of the battery cooler 113 is used for being connected with the outlet of the evaporator 206.

Thus, on one hand, the check valve 122 is disposed such that the refrigerant can flow into the thermal management integrated unit 100 from the third refrigerant port 118 only in a single direction and cannot flow back from the third refrigerant port 118, and on the other hand, the check valve 122 is also integrally mounted on the mounting seat 115, such that the mounting space can be further saved and the degree of integration can be further improved.

Further, in the embodiment of the present invention, the thermal management integrated unit 100 further includes a second throttling device 120 and a temperature sensor 124, the second throttling device 120 and the temperature sensor 124 are integrally disposed on the battery cooler 113, the second throttling device 120 is located at the refrigerant input end 1133 of the battery cooler 113, the temperature sensor 124 is located at the refrigerant output end (including the first refrigerant output end 1134 and the second refrigerant output end 1135) of the battery cooler 113, and the second throttling device 120 may also be a refrigerant throttling element such as an electronic expansion valve, so that the flow rate of the refrigerant entering the battery cooler 113 can be adjusted by the second throttling device 120 and used for throttling the refrigerant before entering the battery cooler 113, and the temperature of the refrigerant flowing out of the battery cooler 113 can also be monitored by the temperature sensor 124. In addition, the second throttle device 120 and the temperature sensor 124 are integrally provided on the battery cooler 113, so that the degree of integration can be further improved, the installation space can be saved, and the cost can be reduced by omitting an external connection pipe.

Referring to fig. 3, in the embodiment of the present invention, the outlet of the outdoor heat exchanger 202 is further connected to the gas-liquid separator 209, an external stop valve 211 is disposed between the outlet of the outdoor heat exchanger 202 and the gas-liquid separator 209, and one end of the third refrigerant interface 118 is configured to be connected between the outlet of the outdoor heat exchanger 202 and the external stop valve 211, so that the refrigerant flowing out of the outdoor heat exchanger 202 can be controlled by the external stop valve 211 and the second throttling device 120 to flow through the battery cooler 113 and the evaporator 206 or directly flow back into the gas-liquid separator 209. In the embodiment of the present invention, a third throttling device 210 is further disposed at an inlet of the evaporator 206, the third throttling device 210 may also be a refrigerant throttling element such as an electronic expansion valve, and the third throttling device 210 is used for adjusting a flow rate of the refrigerant entering the evaporator 206 and throttling the refrigerant before entering the evaporator 206. It should be noted that, in the present invention, the throttling device may have three states, i.e., a fully open state, in which the refrigerant is allowed to directly pass through completely, a throttling state, in which the throttling device throttles the refrigerant, and a closed state, in which the throttling device does not allow the refrigerant to pass through.

Further, in this embodiment, the thermal management integrated unit 100 further includes a pressure and temperature sensor 123, and the pressure and temperature sensor 123 is installed at the refrigerant output end 1112 of the water-cooled condenser 111.

In this way, the pressure and temperature sensor 123 is also mounted on the water-cooled condenser 111 by being directly provided, and the degree of integration is further improved. Specifically, the pressure and temperature sensor 123 is used for monitoring the pressure and temperature of the refrigerant at the refrigerant output end 1112 of the water-cooled condenser 111, and the pressure and temperature sensor 123 may be a high-pressure and temperature integrated sensor.

Referring to fig. 4 and fig. 6, further, the thermal management integrated unit 100 further includes an electronic control connecting element 125, the electronic control connecting element 125 may include a plurality of connectors 126 and a plurality of wires 127, the connectors 126 may be used to connect the heating water pump 107, the battery water pump 108, the motor water pump 109, the valve assembly 110, the first throttling device 119, the second throttling device 120, the stop valve 121, the pressure and temperature sensor 123, and the temperature sensor 124, and the connectors 126 are connected by the wires 127. In this way, the electrical components (e.g., the pump assembly, the valve assembly, etc.) in the thermal management integrated unit 100 can be directly connected to the control components such as the onboard controller of the vehicle 300 through the electrical control connection element 125 as a whole to realize the control of the thermal management integrated unit 100, without using a plurality of interfaces to connect different electrical control components, thereby improving the degree of integration.

Referring to fig. 2 to 7, fig. 3 is a schematic diagram of a thermal management integrated unit 100 and a thermal management system 200 according to an embodiment of the present invention, and fig. 2 and fig. 4 to 7 are schematic structural diagrams of the thermal management integrated unit 100 according to the embodiment of the present invention.

In the illustrated embodiment, the flow field plate 101 is formed with a first interface 1011, a second interface 1012, a third interface 1013, a fourth interface 1014, a fifth interface 1015, a sixth interface 1016, a seventh interface 1017, and an eighth interface 1018, and the valve assembly 110 may include a first five-way valve 136 and a second five-way valve 137.

Referring to fig. 2, the first end a1 of the first five-way valve 136 is connected to an eighth port 1018 through a flow passage, and the eighth port 1018 is used for connecting an outlet of the warm air core 207; the second end a2 of the first five-way valve 136 is communicated with the heating water pump 107 through a flow passage; the third end a3 of the first five-way valve 136 is communicated with a first interface 1011 through a flow passage, and the first interface 1011 is used for connecting an outlet of the heat sink 203; the fourth end a4 of the first five way valve 136 is fluidly connected to the fifth end b5 of the second five way valve 137; the fifth end a5 of the first five-way valve 136 is connected with the second cooling liquid output end 1124 of the water-water heat exchanger 112 through a flow passage; the first end b1 of the second five-way valve 137 is connected with the second interface 1012 and the third interface 1013 through a flow passage, the second interface 1012 is communicated with the third interface 1013, the second interface 1012 is used for connecting with the inlet of the heat sink 203, and the third interface 1013 is used for connecting with the outlet of the electric driving component 204; the second end b2 of the second five-way valve 137 is connected with the inlet of the motor water pump 109 through a flow passage, the motor water pump 109 is connected with the fourth interface 1014 through the flow passage, and the fourth interface 1014 is used for connecting with the inlet of the electric driving component 204; the third end b3 of the second five-way valve 137 is connected with the first cooling liquid output end 1122 of the water-water heat exchanger 112 through a flow passage; the fourth end b4 of the second five-way valve 137 is connected to the inlet of the battery water pump 108 through a flow channel, the battery water pump 108 is connected to the fifth port 1015 through a flow channel, and the fifth port 1015 is used for connecting to the inlet of the power battery 205; the fifth end b5 of the second five way valve 137 is connected to the fourth end a4 of the first five way valve 136; the second coolant input port 1123 of the water-water heat exchanger 112 is connected to the sixth port 1016 and the seventh port 1017 through a flow passage, and the sixth port 1016 and the seventh port 1017 are communicated. The sixth interface 1016 is for connecting with the inlet of the heater core 207, and the seventh interface 1017 is for connecting with the outlet of the liquid heater 208.

In this way, the flow path of the coolant can be changed by the communication relationship of the respective ports of the two five-way valves to realize different operation modes.

It is understood that referring to fig. 12, in other embodiments, the first five-way valve 136 may be replaced by a first four-way valve 138 and a first three-way valve 140, and the second five-way valve 137 may be replaced by a second four-way valve 139 and a second three-way valve 141. Referring to fig. 12, in this embodiment, the first end c1 of the first four-way valve 138 is connected to the third end d3 of the first three-way valve 140, the first end d1 of the first three-way valve 140 is connected to the eighth port 1018 through a flow path, and the second end d2 of the first three-way valve 140 is connected to the second coolant output end 1124 of the water-water heat exchanger 112 through a flow path; a second end c2 of the first four-way valve 138 is communicated with the heating water pump 107 through a flow passage; the third end c3 of the first four-way valve 138 is connected to the first port 1011 via a flow path, and the first port 1011 is used for connecting the outlet of the radiator 203; the fourth end c4 of the first four-way valve 138 is communicated with the second end e2 of the second three-way valve 141 through a flow passage; the first end e1 of the second three-way valve 141 is connected with the second interface 1012 and the third interface 1013 through a flow passage, the second interface 1012 is used for connecting with the inlet of the radiator 203, and the third interface 1013 is used for connecting with the outlet of the electric driving part 204; the third end e3 of the second three-way valve 141 is communicated with the first end f1 of the second four-way valve 139, the second end f2 of the second four-way valve 139 is connected with the inlet of the motor water pump 109 through a flow passage, the inlet of the motor water pump 109 is communicated with a fourth interface 1014 through a flow passage, and the fourth interface 1014 is used for connecting the inlet of the electric driving component 204; the third end f3 of the second four-way valve 139 is connected with the first cooling liquid output end 1122 of the water-water heat exchanger 112 through a flow passage; a fourth end f4 of the second four-way valve 139 is connected to an inlet of the battery water pump 108 through a flow channel, the battery water pump 108 is communicated with a fifth interface 1015 through a flow channel, and the fifth interface 1015 is used for connecting to an inlet of the power battery 205; the second coolant input port 1123 of the water-water heat exchanger 112 is connected to the sixth port 1016 and the seventh port 1017, the sixth port 1016 is used for connecting to the inlet of the heater core 207, and the seventh port 1017 is used for connecting to the outlet of the liquid heater 208.

In such an embodiment, it is equivalent to split the five-way valve into one four-way valve and one three-way valve, one port of the four-way valve is communicated with one port of the three-way valve, and there are only five ports connected to external elements in the four-way valve and the three-way valve as a whole.

It should be further understood that referring to fig. 13, in other embodiments, an eight-way valve may be used instead of the first five-way valve 136 and the second five-way valve 137. Specifically, referring to fig. 13, in such an embodiment, the first end g1 of the eight-way valve 142 is connected to the eighth port 1018 through a flow passage, and the eighth port 1018 is used for connecting the outlet of the warm air core 207; the second end g2 of the eight-way valve 142 is communicated with the heating water pump 107 through a flow passage; the third end g3 of the eight-way valve 142 is communicated with the first interface 1011 through a flow passage, and the first interface 1011 is used for connecting an outlet of the heat sink 203; the fourth end g4 of the eight-way valve 142 is connected to the second port 1012 and the third port 1013 through a flow path, the second port 1012 is used for connecting to the inlet of the heat sink 203, and the third port 1013 is used for connecting to the outlet of the electric driving component 204; the fifth end g5 of the eight-way valve 142 is communicated with the inlet of the electric motor water pump 109 through a flow passage, the electric motor water pump 109 is connected with the fourth port 1014 through the flow passage, and the fourth port 1014 is used for connecting the inlet of the electric driving member 204; the sixth end g6 of the eight-way valve 142 is connected to the inlet of the battery water pump 108 through a flow channel, the battery water pump 108 is connected to the fifth port 1015 through a flow channel, and the fifth port 1015 is used for connecting to the inlet of the power battery 205; the seventh end g7 of the eight-way valve 142 is connected to the first coolant output end 1122 of the water-water heat exchanger 112 through a flow channel; the eighth end g8 of the eight-way valve 142 is connected to the second coolant output 1124 of the water-water heat exchanger 112 through a flow channel, the second coolant input 1123 of the water-water heat exchanger 112 is connected to the sixth port 1016 and the seventh port 1017, the sixth port 1016 is used for connecting to the inlet of the heater core 207, and the seventh port 1017 is used for connecting to the outlet of the liquid heater 208.

In such an embodiment, equivalent to integrating two five-way valves to form an eight-way valve, the two ports between the two five-way valves are connected, and the number of ports, which are integrally communicated with the external member, is also only 8, which may be equivalent to an eight-way valve.

Referring to fig. 3, in the embodiment of the present invention, the thermal management system 200 has a first operation mode. Specifically, the thermal management system 200 may be brought to a first mode of operation by controlling the communication between the various ports in the valve assembly 110 and the change in state of the pump assembly 106, in which natural cooling of the power cell 205 and the electric drive component 204 in the thermal management system 200 may be achieved.

In a first mode of operation, the valve assembly 110 is in a first preset state and at least one of the battery water pump 108 and the electric motor water pump 109 is activated. Specifically, the first preset state of the valve assembly 110 is: the third end a3 of the first five-way valve 136 communicates with the fourth end a4, the second end b2 and the third end b3 of the second five-way valve 137 communicate, and the fifth end b5 of the second five-way valve 137 communicates with the fourth end b 4. At least one of the battery water pump 108 and the motor water pump 109 is started, wherein the battery water pump 108 is closed, and the motor water pump 109 is started; the motor water pump 109 may be turned off, the battery water pump 108 may be turned on, or both the battery water pump 108 and the motor water pump 109 may be turned on. It should be noted that, when both the battery water pump 108 and the motor water pump 109 are started, it is necessary to ensure that the battery water pump 108 and the motor water pump 109 operate at the same power.

Referring to fig. 3, in the first operating mode, the battery water pump 108 and the motor water pump 109 are activated, and the valve assembly 110 is in a first predetermined state. It should be noted that, at this time, the first throttling device 119, the second throttling device 120, and the third throttling device 210 are all in a closed state, the stop valve 121 and the external stop valve 211 are all in a closed state, and the compressor 201 is closed and does not output the refrigerant. When the cooling liquid is cooled by the heat dissipated by the heat sink 203, the cooling liquid flows out of the heat sink 203 to the first interface 1011 of the flow channel plate 101, then enters from the third end a3 of the first five-way valve 136, flows out of the fourth end a4 of the first five-way valve 136 to the fifth end b5 of the second five-way valve 137, and then enters the battery water pump 108 through the fourth end b4 of the second five-way valve 137. The battery water pump 108 conveys the cooling liquid to the power battery 205, and takes away heat of the power battery 205 to dissipate heat of the power battery 205, so that the power battery 205 is prevented from being over-heated.

After the coolant dissipates heat of the power battery 205, the coolant flows out of the power battery 205 to the first coolant input end 1121 of the water-water heat exchanger 112, then flows out of the second coolant output end 1122 of the water-water heat exchanger 112 to the third end b3 of the second five-way valve 137, and then flows into the motor water pump 109 from the second end b2 of the second five-way valve 137, the motor water pump 109 delivers the coolant into the fourth interface 1014 of the flow channel plate 101 and the electric driving component 204, the coolant flows through the electric driving component 204 to cool and dissipate heat of various components in the electric driving component 204, and finally flows out of the electric driving component 204 and then flows out of the third interface 1013 and the second interface 1012 of the flow channel plate 101 to the heat sink 203. After the cooling liquid returns to the heat sink 203, the heat sink 203 can dissipate the heat of the cooling liquid, and the air flow generated by the electronic fan 212 flowing through the heat sink 203 can make the cooling liquid perform sufficient heat exchange. Finally, the cooling liquid flows out of the radiator 203 to the power battery 205 and the electric driving component 204 for the next circulation. Note that the direction of the arrows in fig. 14 represents the flow direction of the cooling liquid.

Thus, after the cooling liquid is cooled by the temperature of the ambient air through the radiator 203, the cooling liquid sequentially flows to the power battery 205 and the electric driving component 204 to be cooled, so that the power battery 205 and the electric driving component 204 can share the same radiator 203 to perform heat dissipation and cooling, and the cost is reduced.

In some embodiments, in a first mode of operation, the valve assembly 110 is in a first preset state, the battery water pump 108 is on, and the motor water pump 109 is off; in some embodiments, in the first mode of operation, the battery water pump 108 is activated, the electric motor water pump 109 is activated, and the valve assembly 110 is in a first predetermined state. In both cases, the flow direction of the coolant is the same as in the case where both the battery water pump 108 and the motor water pump 109 are activated, and will not be described repeatedly. In both cases, therefore, the cooling liquid can still cool the power battery 205 and the electric drive component 204 by cooling via the heat sink 203.

It should be noted that, in the first operating mode, it is preferable to control both the battery water pump 108 and the motor water pump 109 to be activated, because the coolant flow rate is reduced by turning off either the motor water pump 109 or the battery water pump 108, thereby reducing the heat dissipation efficiency of the coolant to the power battery 205 and the electric driving part 204.

The natural heat dissipation mode of the first working mode is applicable to charging the vehicle in spring and autumn. Because the vehicle is charged, the power battery 205 and the electric drive component 204 generate heat, and because the environmental temperature in spring and autumn is low, the heat dissipation of the power battery 205 and the electric drive component 204 can be completed only by using the radiator 203 without starting the compressor 201, the water-cooled condenser 111, the battery cooler 113 and other devices for auxiliary heat dissipation, so that the electric energy is saved, and the charging efficiency can be improved.

Referring to fig. 12, in the embodiment shown in fig. 12, a four-way valve and a three-way valve may be used instead of one five-way valve. In such a case, the first preset state of the valve assembly 110 is: the third end c3 of the first four-way valve 138 communicates with the fourth end c4, the second end e2 of the second three-way valve 141 communicates with the third end e3, the first end f1 of the second four-way valve 139 connects with the fourth end f4, and the second end f2 of the second four-way valve 139 connects with the third end f3, so that the thermal management system 200 enters the first operating mode. The flow direction of the coolant in this case is similar to that in the case where the first five-way valve 136 and the second five-way valve 137 are used, and the description thereof will be omitted. The direction of the arrows in fig. 12 indicates the flow direction of the cooling liquid.

Referring to fig. 13, in the embodiment shown in fig. 13, an eight-way valve 142 may be further used to replace the first five-way valve 136 and the second five-way valve 137. In such a case, the first preset state of the valve assembly 110 is: the third end g3 and the sixth end g6 of the eight-way valve 142 are in communication, and the fifth end g5 of the eight-way valve 142 is in communication with the seventh end g7 to place the thermal management system 200 into the first mode of operation. In this case, the flow direction of the cooling liquid is similar to that of the cooling liquid when the first five-way valve 136 and the second five-way valve 137 are used, and details are not repeated here, and the directions of arrows in fig. 13 represent the flow direction of the cooling liquid.

Referring to fig. 14, in the embodiment of the present invention, the thermal management system 200 further has a second operation mode, specifically, the thermal management system 200 can reach the second operation mode by controlling the communication relationship between the ports of the valve assembly 110 and the state of the pump assembly 106, and in the second operation mode, the power battery 205 in the thermal management system 200 can be cooled forcibly.

In a second mode of operation, the valve assembly 110 is in a second preset state and the compressor 201 and battery water pump 108 are activated. Specifically, the second preset state of the valve assembly 110 is that the third end b3 and the fourth end b4 of the second five-way valve 137 are communicated.

Referring to fig. 14, in the second operation mode, the compressor 201 and the battery water pump 108 are started, and the valve assembly 110 is in the first preset state. It should be noted that, at this time, the stop valve 121 of the thermal management integrated unit 100 is in a closed state, the first throttling device 119 is in a fully open state, the second throttling device 120 is in a throttling operation state, the third throttling device 210 is in a closed state, and the external stop valve 211 is in a closed state. Under the condition, the compressor 201 outputs the refrigerant, the refrigerant enters the outdoor heat exchanger 202 through the first throttling device 119 after flowing through the water-cooled condenser 111 (the heating water pump 107 is not started, and the water-cooled condenser 111 does not basically exchange heat) to be cooled and release heat, then enters the battery cooler 113 through the one-way valve 122, meanwhile, the battery water pump 108 circularly conveys the coolant to the power battery 205 to take away heat generated by the power battery 205, the taken away heat exchanges heat with the refrigerant in the battery cooler 113 through the coolant to absorb heat and evaporate the refrigerant, the evaporated refrigerant flows out of the first refrigerant output end of the battery cooler 113 to the gas-liquid separator 209, and finally returns to the compressor 201 to perform the next circulation. Note that in fig. 14, arrows between the water-water heat exchanger 112, the second five-way valve 137, the battery water pump 108, and the power battery 205 indicate the flow direction of the coolant; arrows between the gas-liquid separator 209, the compressor 201, the water-cooled condenser 111, the outdoor heat exchanger 202, and the battery cooler 113 indicate the flow direction of the refrigerant. In this way, the battery can be forcibly cooled by the refrigerant to improve the heat dissipation capability of the power battery 205, and improve the safety performance and the charging speed.

Referring to fig. 15, in the embodiment shown in fig. 15, a four-way valve and a three-way valve may be used instead of one five-way valve, respectively. In such a case, the second preset state of the valve assembly 110 is the third terminal f3 and the fourth terminal f4 of the second four-way valve 139 being in communication to place the thermal management system 200 into the second mode of operation. In this case, the flow direction of the cooling liquid is similar to that of the cooling liquid when the first five-way valve 136 and the second five-way valve 137 are adopted, and details are not repeated herein, and reference may be specifically made to fig. 15, where arrows between the water-water heat exchanger 112, the second four-way valve 139, the battery water pump 108, and the power battery 205 in fig. 15 indicate the flow direction of the cooling liquid; arrows between the gas-liquid separator 209, the compressor 201, the water-cooled condenser 111, the outdoor heat exchanger 202, and the battery cooler 113 indicate the flow direction of the refrigerant.

Referring to fig. 16, in the embodiment shown in fig. 16, an eight-way valve 142 may be further used to replace the first five-way valve 136 and the second five-way valve 137. In such a case, the second preset state of the valve assembly 110 is the communication between the sixth end g6 and the seventh end g7 of the eight-way valve 142 to put the thermal management system 200 into the second operating mode. In this case, the flow direction of the cooling liquid is similar to that of the cooling liquid when the first five-way valve 136 and the second five-way valve 137 are adopted, and details are not repeated herein, and specifically refer to fig. 16, where arrows between the water-water heat exchanger 112, the eight-way valve 142, the battery water pump 108, and the power battery 205 in fig. 16 indicate the flow direction of the cooling liquid; arrows between the gas-liquid separator 209, the compressor 201, the water-cooled condenser 111, the outdoor heat exchanger 202, and the battery cooler 113 indicate the flow direction of the refrigerant.

Referring to fig. 17, a control method of a thermal management system according to an embodiment of the present invention is applied to the thermal management system 200 according to the embodiment of the present invention, and the control method of the thermal management system 200 includes:

s10: acquiring the temperature of the power battery 205;

s20: at least one of the battery water pump 108 and the electric motor water pump 109 is controlled to be activated based on the temperature of the power battery 205 and the valve assembly 110 is controlled to be in a first predetermined state to place the thermal management system 200 in a first mode of operation to cool the power battery 205 and the electric drive component 204.

Specifically, the above steps S10 and S20 may be implemented by an on-board controller (e.g., a processor unit such as a vehicle controller) of the vehicle 300. Specifically, in step S10, the temperature of the power battery 205 is acquired to monitor the temperature of the power battery 205, and the first water temperature sensor 218 provided at the outlet of the power battery 205 may detect the temperature of the coolant flowing out of the power battery 205 to feed back the temperature of the power battery 205.

In step S20, when it is detected that the temperature value of the power battery 205 is greater than the preset temperature, at least one of the battery water pump 108 and the motor water pump 109 is controlled to be activated, and the valve assembly 110 is controlled to be in a first preset state to enable the thermal management system 200 to enter a first operation mode. In the first operation mode, the valve assembly 110 is in the first preset state that the third end a3 of the first five-way valve 136 is communicated with the fourth end a4, the second end b2 of the second five-way valve 137 is communicated with the third end b3, the fifth end b5 of the second five-way valve 137 is communicated with the fourth end b4, and both the battery water pump 108 and the motor water pump 109 are started.

In the first operation mode, the states of the devices and the flow direction of the cooling fluid in the thermal management system 200 have been described in detail above, and it can be referred to the above description of the first operation mode, and will not be repeated here.

Referring to fig. 3, in the case where the valve assembly 110 includes the first and second five-

way valves

136 and 137, step S20 includes:

the third end a3 and the fourth end a4 of the first five-way valve 136 are controlled to communicate, the second end b2 and the third end b3 of the second five-way valve 137 are controlled to communicate, and the fourth end b4 and the fifth end b5 of the second five-way valve 137 are controlled to communicate to enable the thermal management system 200 to enter the first operating mode.

Referring to fig. 12, in the case where the valve assembly 110 includes the first four-way valve 138, the second four-way valve 139, the first three-way valve 140, and the second three-way valve 141, step S20 includes:

the third end c3 of the first four-way valve 138 is controlled to communicate with the fourth end c4, the second end e2 of the second three-way valve 141 is controlled to communicate with the third end e3, the first end f1 of the second four-way valve 139 is connected with the fourth end f4, and the second end f2 of the second four-way valve 139 is controlled to communicate with the third end f3 to put the thermal management system 200 into the first operating mode.

Referring to fig. 13, in the case where the valve assembly 110 includes the eight-way valve 142, step S20 includes:

the third end g3 and the sixth end g6 of the eight-way valve 142 are controlled to communicate, and the fifth end g5 of the eight-way valve 142 is controlled to communicate with the seventh end g7 to put the thermal management system 200 into the first mode of operation.

Specifically, the above steps may be implemented by an onboard controller (e.g., a processor unit such as a vehicle control unit) of the vehicle 300.

Referring to fig. 18, a method for controlling a thermal management system 200 according to an embodiment of the present invention is applied to the thermal management system 200 according to the embodiment of the present invention, and the method for controlling the thermal management system 200 may include:

s30: under the condition that the temperature of the power battery 205 is greater than the first preset temperature and less than the second preset temperature, the control valve assembly 110 is in a first preset state to enable the thermal management system 200 to enter a first working mode;

s40: in the case that the temperature of the power battery 205 is greater than the second preset temperature, the control valve assembly 110 is in the second preset state, so that the thermal management system 200 enters the second operation mode.

Specifically, the above steps S30 and S40 may be implemented by an on-board controller (e.g., a processor unit such as a vehicle controller) of the vehicle 300.

It is understood that in such an embodiment, the temperature of the power battery 205 can be detected, and when the temperature of the power battery 205 is less than the second preset temperature, it indicates that the temperature of the power battery 205 is not high, and only the heat sink 203 needs to be used to dissipate heat of the power battery 205. When the temperature of the power battery 205 is higher than the second preset temperature, it indicates that the temperature of the power battery 205 is higher, and in order to quickly dissipate and cool the power battery 205, the control valve assembly 110 may be in the second preset state, so as to enter a second working mode to forcibly cool the power battery 205 by using a cooling medium. Specifically, the cooling principle in the first operation mode and the second operation mode can be referred to above, and is not described herein again.

Referring to fig. 14, in the case where the valve assembly 110 includes the first and second five-

way valves

136 and 137, step S40 includes:

the third end b3 and the fourth end b4 of the second five way valve 137 are controlled to communicate to put the thermal management system 200 into the second mode of operation.

Referring to fig. 15, in the case where the valve assembly 110 includes the first four-way valve 138, the second four-way valve 139, the first three-way valve 140, and the second three-way valve 141, step S40 includes:

the third and fourth terminals f3 and f4 of the second four-way valve 139 are controlled to communicate to place the thermal management system 200 into the second mode of operation.

Referring to fig. 16, in the case where the valve assembly 110 includes the eight-way valve 142, step S40 includes:

the sixth end g6 and the seventh end g7 of the eight-way valve 142 are controlled to communicate to place the thermal management system 200 into the second mode of operation.

Furthermore, it should be noted that the above description is only exemplary of the integrated thermal management unit and the several modes that can be implemented by the thermal management system 200 of the present invention. It is understood that the general thermal management integrated unit of the present invention can also be controlled by the valve assembly to be in different states to achieve other modes besides the above-mentioned modes, for example, the individual air-conditioning cooling, air-conditioning heating, power battery heating, natural heat dissipation of the electric driving component, thermal insulation of the battery by using heat of the electric driving component, dehumidification of the passenger compartment, heating of the passenger compartment by using heat of the electric driving component, deicing modes, etc., which are not described in detail herein.

In summary, the thermal management system 200 according to the embodiment of the present invention is applied to the vehicle 300, the thermal management system 200 includes a power battery 205, a heat sink 203, an electric driver component 204 connected to the heat sink 203, and the thermal management integrated unit 100, the thermal management integrated unit 100 is connected to the heat sink 203, the power battery 205, and the electric driver component 204, and the thermal management integrated unit 100 includes the runner plate 101, the pump assembly 106, and the valve assembly 110.

A plurality of flow channels are formed in the flow channel plate 101. The pump assembly 106 and the valve assembly 110 are integrally arranged on the flow channel plate 101, the pump assembly 106 comprises a battery water pump 108 and a motor water pump 109, an inlet of the battery water pump 108 is connected with the valve assembly 110 through the flow channel, and an outlet of the battery water pump 108 is connected with an inlet of a power battery 205. An inlet of the motor water pump 109 is connected with the valve assembly 110, and an outlet of the motor water pump 109 is connected with an inlet of the electric driving part 204. The outlet of the power battery 205 is connected to the valve assembly 110. The valve assembly 110 is also connected to the electrical driver component 204 and the heat sink 203, and the valve assembly 110 is used to control the flow of the cooling fluid within the thermal management integrated unit 100.

The thermal management system 200 has a first operating mode in which at least one of the battery water pump 108 and the electric motor water pump 109 is activated, the valve assembly 110 is in a first predetermined state in which the valve assembly 110 communicates the inlet of the battery water pump 108 with the outlet of the radiator 203 and with the inlet of the electric drive component 204, the battery water pump 108 and/or the electric motor water pump 109 delivers coolant to the battery 205 and through the valve assembly 110 into the electric drive component 204, the coolant flows through the electric drive component 204 and into the radiator 203 for cooling, and the coolant flowing out of the radiator 203 further flows back through the valve assembly 110 to the inlet of the battery water pump 108 and/or the electric motor water pump 109.

In this way, the power battery 205 and the electric drive component 204 can share the same heat sink 203 for heat dissipation and cooling by controlling the state of the valve assembly 110, and the cost is reduced. Meanwhile, the pump assembly 106, the valve assembly 110, the water-cooled condenser 111, the water-water heat exchanger 112, the battery cooler 113 and other elements are integrated on the flow channel plate and communicated through the flow channel arranged in the flow channel plate 101, so that external pipelines can be saved, routing between each part is short, and cost is reduced.

In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A thermal management system for a vehicle, the thermal management system comprising a power battery, a heat sink, an electric drive component coupled to the heat sink, and a thermal management integrated unit coupled to the heat sink, the power battery, and the electric drive component, the thermal management integrated unit comprising:

the runner plate is internally provided with a plurality of runners; and

2. The thermal management system according to claim 1, comprising a water-water heat exchanger and a battery cooler integrally arranged on the runner plate, wherein a coolant input end of the battery cooler is communicated with a first coolant input end and a first coolant output end of the water-water heat exchanger, the first coolant output end of the water-water heat exchanger is connected with the valve assembly through the runner, and a coolant input end of the battery cooler is connected with an outlet of the power battery;

3. The thermal management system of claim 2, further comprising a compressor, an outdoor heat exchanger, a gas-liquid separator, an evaporator, a liquid heater, and a warm air core connected to the thermal management integrated unit, the pump assembly further comprising a heating water pump integrally disposed on the runner plate, the thermal management integrated unit further comprising a water cooled condenser integrally disposed on the runner plate;

4. The thermal management system according to claim 1, comprising a water-water heat exchanger and a battery cooler integrally arranged on the runner plate, wherein a coolant input end of the battery cooler is communicated with a first coolant input end and a first coolant output end of the water-water heat exchanger, the first coolant output end of the water-water heat exchanger is connected with the valve assembly through the runner, and a coolant input end of the battery cooler is connected with an outlet of the power battery;

5. The thermal management system of claim 4, further comprising a compressor, an outdoor heat exchanger, a gas-liquid separator, an evaporator, a liquid heater, and a warm air core connected to the thermal management integrated unit, the pump assembly further comprising a heating water pump integrally disposed on the runner plate, the thermal management integrated unit further comprising a water cooled condenser integrally disposed on the runner plate;

6. The thermal management system according to claim 1, comprising a water-water heat exchanger and a battery cooler integrally arranged on the runner plate, wherein a coolant input end of the battery cooler is communicated with a first coolant input end and a first coolant output end of the water-water heat exchanger, the first coolant output end of the water-water heat exchanger is connected with the valve assembly through the runner, and a coolant input end of the battery cooler is connected with an outlet of the power battery;

7. The thermal management system according to claim 6, further comprising a compressor, an outdoor heat exchanger, a gas-liquid separator, an evaporator, a liquid heater, and a warm air core connected to the thermal management integrated unit, wherein the pump assembly further comprises a heating water pump, a liquid heater, and a warm air core integrally disposed on the runner plate, and wherein the thermal management integrated unit further comprises a water cooled condenser integrally disposed on the runner plate;

8. The thermal management system according to any one of claims 3, 5 or 7, further comprising a second operating mode in which the battery water pump and the compressor are both activated, the valve assembly is in a second predetermined state to communicate the first coolant output of the water-water heat exchanger with the inlet of the battery water pump, the battery water pump delivers coolant to the power battery and then flows through the battery cooler, the coolant flows through the water-cooled condenser under the action of the compressor and then enters the outdoor heat exchanger for cooling, and the cooled coolant exchanges heat with the coolant flowing through the battery cooler when flowing through the battery cooler to cool the power battery.

9. A control method of a thermal management system for the thermal management system according to claim 1, the control method of the thermal management system comprising:

acquiring the temperature of the power battery;

10. The control method of the thermal management system according to claim 9, wherein the thermal management system comprises a water-water heat exchanger and a battery cooler which are integrally arranged on the runner plate, a coolant input end of the battery cooler is communicated with a first coolant input end and a first coolant output end of the water-water heat exchanger, the first coolant output end of the water-water heat exchanger is connected with the valve assembly through the runner, and a coolant input end of the battery cooler is connected with an outlet of the power battery;

11. The control method of the thermal management system according to claim 9, wherein the thermal management system comprises a water-water heat exchanger and a battery cooler which are integrally arranged on the runner plate, a coolant input end of the battery cooler is communicated with a first coolant input end and a first coolant output end of the water-water heat exchanger, the first coolant output end of the water-water heat exchanger is connected with the valve assembly through the runner, and a coolant input end of the battery cooler is connected with an outlet of the power battery;

12. The control method of the thermal management system according to claim 9, wherein the thermal management system comprises a water-water heat exchanger and a battery cooler which are integrally arranged on the runner plate, a coolant input end of the battery cooler is communicated with a first coolant input end and a first coolant output end of the water-water heat exchanger, the first coolant output end of the water-water heat exchanger is connected with the valve assembly through the runner, and a coolant input end of the battery cooler is connected with an outlet of the power battery;

13. The control method of the thermal management system according to claim 9, wherein the thermal management system comprises a water-water heat exchanger and a battery cooler which are integrally arranged on the runner plate, a coolant input end of the battery cooler is communicated with a first coolant input end and a first coolant output end of the water-water heat exchanger, the first coolant output end of the water-water heat exchanger is connected with the valve assembly through the runner, and a coolant input end of the battery cooler is connected with an outlet of the power battery;

14. A vehicle, characterized by comprising:

a vehicle body; and

the thermal management system of any of claims 1-8, mounted on the vehicle body.