CN117863825A - Integrated thermal management system - Google Patents

Abstract

The application provides an integrated thermal management system, comprising an integrated heat pump, a functional component, a battery, an air conditioning assembly and a compressor; the integrated heat pump can allow the circulation of waterway cooling liquid and air conditioning refrigerants, and comprises a first water pump, a second water pump, a four-way reversing valve, an integrated water valve, a first electronic expansion valve, a condenser and a refrigerator, wherein the integrated water valve is respectively connected with the refrigerator and the condenser, the four-way reversing valve is connected with the condenser, and the first electronic expansion valve is connected between the condenser and the refrigerator; the functional assembly, the battery, the air conditioning assembly and the compressor are all connected with the integrated heat pump. Through this setting, when guaranteeing the cooling system and the air conditioning system normal operating of thermal management system, reduced the spare part quantity in the thermal management system, and then reduced the external pipeline quantity between each spare part, avoided external pipeline too much, the system energy loss that the overlength brought, help improving thermal management system's heat exchange efficiency.

Description

Integrated thermal management system

Technical Field

The present disclosure relates to the field of vehicle thermal management technologies, and in particular, to an integrated thermal management system.

Background

The new energy automobile is widely applied to the market due to the advantages of energy conservation and high efficiency.

Compared with the traditional fuel oil vehicle, the new energy vehicle heat management system is newly added with components such as a battery, an electric heater, a heat pump, a motor, a three-in-one assembly, an automatic driving controller, an electronic water pump and the like, so that the cooling and heating of a passenger cabin are required to be met, and the components such as the battery, the motor, the three-in-one assembly, the automatic driving controller and the like are required to be subjected to temperature management. The colleague needs to frequently switch working modes in order to bring more economic benefits to users and improve the endurance mileage, so that heat exchange among different components is satisfied.

Because a plurality of components are newly added, and the working modes are more and more, the pipelines of the air conditioning system and the cooling system of the new energy automobile in the prior art are more complex, the volume and the weight of the automobile are increased, the quantity and the length of the pipelines are more, and the heat exchange efficiency of the air conditioning system and the cooling system is influenced.

Disclosure of Invention

In view of this, the present application provides an integrated thermal management system, which can optimize the pipeline composition of the thermal management system and improve the heat exchange efficiency.

Specifically, the method comprises the following technical scheme:

The embodiment of the application provides an integrated heat management system, which comprises an integrated heat pump, a functional component, a battery, an air conditioner assembly and a compressor;

the integrated heat pump can allow water path cooling liquid and air conditioner refrigerants to circulate, and comprises a first water pump, a second water pump, a four-way reversing valve, an integrated water valve, a first electronic expansion valve, a condenser and a refrigerator, wherein the integrated water valve is respectively connected with the refrigerator and the condenser, the four-way reversing valve is connected with the condenser, and the first electronic expansion valve is connected between the condenser and the refrigerator;

the functional component, the battery, the air conditioner assembly and the compressor are all connected with the integrated heat pump.

In an alternative embodiment, the integrated thermal management system further comprises a radiator and a fan, the radiator being connected to the functional component and the integrated water valve, respectively, and the fan being adapted to dissipate heat from the functional component.

In an alternative embodiment, the condenser is a water cooled condenser.

In an alternative embodiment, the integrated thermal management system further comprises a three-way water valve comprising an inlet connected to the air conditioning assembly, a first outlet connected to the second water pump and the integrated water valve, respectively, and a second outlet connected to the condenser.

In an alternative embodiment, the integrated thermal management system further comprises a first check valve and a second check valve;

the liquid inlet end of the first one-way valve is connected with the integrated water valve, and the liquid outlet end of the first one-way valve is respectively connected with the liquid inlet end of the second water pump and the liquid inlet end of the second one-way valve;

the liquid outlet end of the second one-way valve is connected with the condenser.

In an alternative embodiment, the integrated water valve includes a first input, a second input, a third input, a first output, a second output, and a third output, the first input in communication with the first output, the second input in communication with the second output, and the third input in communication with the third output;

the first input end is connected with the refrigerator, and the first output end is connected with the liquid inlet end of the first one-way valve;

the second input end is connected with the refrigerator, and the second output end is connected with the functional component;

the third input end is connected with the battery, and the third output end is connected with the refrigerator.

In an alternative embodiment, the liquid inlet end of the first water pump is connected with the functional component, and the liquid outlet end of the first water pump is connected with the air conditioner assembly;

The integrated thermal management system further comprises an electric heater, and the electric heater is respectively connected with the liquid outlet end of the second water pump and the battery.

In an alternative embodiment, the integrated thermal management system further comprises a second electronic expansion valve and a three-way air conditioning connector;

the second electronic expansion valve is connected between the refrigerator and the air conditioner assembly;

the first end of the three-way air conditioner connector is connected with the four-way reversing valve, the second end of the three-way air conditioner connector is connected with the air conditioner assembly, and the third end of the three-way air conditioner connector is respectively connected with the refrigerator and the condenser.

In an alternative embodiment, the four-way reversing valve has a first state and a second state;

in the first state, the output end of the compressor is connected with the condenser through the four-way reversing valve, and the input end of the compressor is connected with the first end of the three-way air conditioner connector through the four-way reversing valve;

in the second state, the output end of the compressor is connected with the first end of the three-way air conditioner connector through the four-way reversing valve, and the input end of the compressor is connected with the condenser through the four-way reversing valve.

In an alternative embodiment, the integrated thermal management system has a first cooling circuit, a second cooling circuit, and a third cooling circuit;

when the first cooling loop is conducted, the first water pump is started, the first outlet of the three-way water valve is closed, and the second outlet of the three-way water valve is opened;

when the second cooling loop is conducted, the first water pump and the second water pump are both started, the first outlet of the three-way water valve is opened, and the second outlet of the three-way water valve is closed;

and under the condition that the third cooling loop is conducted, the second water pump is started, and the first outlet of the three-way water valve is closed.

In an alternative embodiment, the integrated thermal management system has a first air conditioning circuit, a second air conditioning circuit, a third air conditioning circuit, and a fourth air conditioning circuit;

when the first air conditioning loop is conducted, the first electronic expansion valve is opened, the second electronic expansion valve is closed, the four-way reversing valve is in a first state, and the air conditioning assembly stops running;

when the second air conditioning loop is conducted, the first electronic expansion valve and the second electronic expansion valve are both opened, the four-way reversing valve is in a first state, and the air conditioning assembly operates;

When the third air conditioning loop is conducted, the first electronic expansion valve is opened, the second electronic expansion valve is closed, the four-way reversing valve is in a second state, and the air conditioning assembly stops running;

and under the condition that the fourth air conditioning loop is conducted, the first electronic expansion valve and the second electronic expansion valve are both opened, the four-way reversing valve is in a second state, and the air conditioning assembly operates.

In an alternative embodiment, the integrated thermal management system has at least one of the following modes of operation:

the first working mode is that the first cooling loop is conducted;

the second working mode is that the second cooling loop is conducted, and the electric heater is turned off;

the third working mode is that in the third working mode, the first cooling loop, the third cooling loop and the first air conditioning loop are conducted, and the electric heater is turned off;

a fourth operation mode in which the first cooling circuit, the third cooling circuit, and the second air conditioning circuit are turned on, and the electric heater is turned off;

A fifth working mode, in which the second cooling circuit is turned on and the fan is turned off;

a sixth working mode, in which the second cooling circuit and the third air conditioning circuit are conducted, and the fan is turned on or off according to the temperature of the waterway cooling liquid;

a seventh working mode, in which the second cooling circuit and the fourth air conditioning circuit are turned on, and the fan is turned on or off according to the temperature of the waterway cooling liquid;

an eighth working mode, in which the second cooling circuit is turned on and the electric heater is turned on;

and a ninth working mode, in which the first cooling circuit and the third cooling circuit are conducted, and the electric heater is turned on.

The beneficial effects of the technical scheme provided by the embodiment of the application at least comprise: through integrating first water pump, second water pump, cross switching-over valve, integrated water valve, first electronic expansion valve, condenser and refrigerator into a whole, when guaranteeing the cooling system and the air conditioning system normal operating of thermal management system, reduced the spare part quantity in the thermal management system, and then reduced the external pipeline quantity between each spare part, avoided the system energy loss that external pipeline is too much, the overlength brings, help improving thermal management system's heat exchange efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an integrated thermal management system according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of an integrated heat pump according to an embodiment of the present application;

FIG. 3 is a schematic diagram of the flow of the water coolant through the first cooling circuit and a schematic diagram of the integrated thermal management system in the first operation mode according to the embodiment of the present application;

FIG. 4 is a schematic diagram of the flow of the water coolant through the second cooling circuit and a schematic diagram of the integrated thermal management system in the second operation mode according to the embodiment of the present application;

FIG. 5 is a schematic diagram illustrating the flow of water coolant through a third cooling circuit according to an embodiment of the present disclosure;

fig. 6 is a schematic flow diagram of an air conditioning refrigerant in a first air conditioning circuit according to an embodiment of the present disclosure;

fig. 7 is a schematic flow diagram of an air conditioning refrigerant in a second air conditioning circuit according to an embodiment of the present disclosure;

Fig. 8 is a schematic flow diagram of an air conditioning refrigerant in a third air conditioning circuit according to an embodiment of the present disclosure;

fig. 9 is a schematic flow diagram of an air conditioning refrigerant in a fourth air conditioning circuit according to an embodiment of the present disclosure;

FIG. 10 is a schematic diagram of an integrated thermal management system according to an embodiment of the present disclosure in a third mode of operation;

FIG. 11 is a schematic diagram of an integrated thermal management system according to an embodiment of the present application in a fourth mode of operation;

FIG. 12 is a schematic diagram of an integrated thermal management system according to an embodiment of the present disclosure in a fifth mode of operation;

FIG. 13 is a schematic diagram of an integrated thermal management system according to an embodiment of the present disclosure in a sixth mode of operation;

FIG. 14 is a schematic diagram of an integrated thermal management system according to an embodiment of the present disclosure in a seventh operating mode;

FIG. 15 is a schematic diagram of an integrated thermal management system according to an embodiment of the present disclosure in an eighth mode of operation;

fig. 16 is a schematic diagram of an integrated thermal management system according to an embodiment of the present application in a ninth operation mode.

Reference numerals in the drawings are respectively expressed as:

1-an integrated heat pump; 11-a first water pump; 12-a second water pump; 13-a four-way reversing valve; 14-an integrated water valve; 141-a first input; 142-a second input; 143-a third input; 144-a first output; 145-a second output; 146-a third output; 15-a first electronic expansion valve; a 16-condenser; 17-a refrigerator; 2-a functional component; 21-an autopilot controller; 22-trinity assembly; 23-an electric drive assembly; 3-cell; 4-an air conditioning assembly; 5-compressor; 6-three-way water valve; 61-inlet; 62-a first outlet; 63-a second outlet; 71-a first one-way valve; 72-a second one-way valve; 8-an electric heater; 91-a heat sink; 92-fans; 101-a second electronic expansion valve; 102-a three-way air conditioner connector; 103-expansion kettle.

Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms of orientation, such as "upper," "lower," "side," and the like, in the embodiments of the present application are generally based on the relative relationships of orientations shown in fig. 1, and are used merely to more clearly describe structures and relationships between structures, and are not intended to describe absolute orientations. The orientation may change when the product is placed in different orientations, e.g. "up", "down" may be interchanged.

Unless defined otherwise, all technical terms used in the examples of the present application have the same meaning as commonly understood by one of ordinary skill in the art. Some technical terms appearing in the embodiments of the present application are described below.

In order to make the technical solution and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application provides an integrated thermal management system which is applied to new energy automobiles such as hybrid electric vehicles, pure electric vehicles, fuel cell vehicles and the like.

As shown in fig. 1, the integrated thermal management system includes an integrated heat pump 1, a functional component 2, a battery 3, an air conditioning assembly 4, and a compressor 5.

The integrated heat pump 1 can allow the circulation of waterway cooling liquid and air conditioning refrigerants, the integrated heat pump 1 comprises a first water pump 11, a second water pump 12, a four-way reversing valve 13, an integrated water valve 14, a first electronic expansion valve 15, a condenser 16 and a refrigerator 17, the integrated water valve 14 is respectively connected with the refrigerator 17 and the condenser 16, the four-way reversing valve 13 is connected with the condenser 16, and the first electronic expansion valve 15 is connected between the condenser 16 and the refrigerator 17.

The functional module 2, the battery 3, the air conditioning assembly 4 and the compressor 5 are all connected with the integrated heat pump 1.

The integrated heat management system is provided with a cooling system and an air conditioning system, wherein water path cooling liquid flows in a loop of the cooling system and exchanges heat with the functional component 2 and the battery 3 waiting for cooling elements, so that the cooling effect is achieved on the elements to be cooled.

The integrated heat management system cools the element to be cooled through the cooling system, or cools the element to be cooled through the cooling system and the air conditioning system at the same time, so that the normal operation of the element to be cooled is ensured, and the element to be cooled is prevented from being damaged due to overheating.

The air conditioning refrigerant flows in a loop of the air conditioning system, so that the refrigerating and heating functions of the whole vehicle are realized, and the air conditioning of the passenger cabin is realized.

The four-way reversing valve 13 is used for changing the flow direction of the refrigerant so as to switch the refrigerating and heating modes of the air conditioning system.

One end of the first electronic expansion valve 15 is connected with the condenser 16, the other end is connected with the refrigerator 17, and the first electronic expansion valve 15 is used for controlling on-off of an air-conditioning refrigerant between the condenser 16 and the refrigerator 17.

Illustratively, the functional assembly 2 includes an autopilot controller 21, a three-in-one assembly 22, and an electric drive assembly 23. The three-in-one assembly 22 is a three-in-one vehicle charging and distributing assembly formed by integrating a vehicle-mounted Charger (OBC), a vehicle-mounted DC/DC Converter (DC/DC Converter) and a high-voltage distribution unit (Power Distribution Unit, PDU).

Illustratively, the integrated heat pump (1) comprises a shell, a cooling pipeline and an air conditioning pipeline are arranged in the shell, a first water pump 11, a second water pump 12, a four-way reversing valve 13, an integrated water valve 14 and a first electronic expansion valve 15 are arranged in the shell, and a condenser 16 and a refrigerator 17 are arranged outside the shell. By integrating a plurality of parts into a whole module, the number of scattered parts in the integrated heat management system is greatly reduced, the number of external pipelines is reduced, and the volume and weight of the integrated heat management system are reduced.

Illustratively, the air conditioning assembly 4 is an HVAC (Heating, ventilation and Air Conditioning) module, the air conditioning assembly 4 includes components such as a warm air core, an evaporation tank, a blower, etc., and the air conditioning assembly 4 is capable of delivering suitable air to the passenger compartment to create a comfortable environment for the passenger compartment.

According to the integrated heat management system provided by the embodiment of the application, the first water pump 11, the second water pump 12, the four-way reversing valve 13, the integrated water valve 14, the first electronic expansion valve 15, the condenser 16 and the refrigerator 17 are integrated into a whole, so that the number of parts in the heat management system is reduced while the normal operation of the cooling system and the air conditioning system of the heat management system is ensured, the number of external pipelines between each part is further reduced, the system energy loss caused by excessive and overlong external pipelines is avoided, and the heat exchange efficiency of the heat management system is improved.

In a further embodiment, the condenser 16 is a water cooled condenser.

Compared with the air-cooled condenser commonly used in the prior art, the water-cooled condenser adopted by the embodiment of the application has smaller volume and weight, is beneficial to reducing the volume and weight of the integrated thermal management system, and is beneficial to realizing the lightweight design of the vehicle.

In a further embodiment, the integrated thermal management system further comprises a three-way water valve 6, the three-way water valve 6 comprising an inlet 61, a first outlet 62 and a second outlet 63, the inlet 61 being connected to the air conditioning assembly 4, the first outlet 62 being connected to the second water pump 12 and the integrated water valve 14, respectively, and the second outlet 63 being connected to the condenser 16.

The three-way water valve 6 is used for adjusting the flow direction of the waterway cooling liquid in the cooling system. As shown in fig. 1, the right side of the three-way water valve 6 is connected to an inlet 61, and the water path coolant can flow into the inlet 61 from the air conditioning assembly 4 and flow out from the first outlet 62 or the second outlet 63.

As shown in fig. 1, the upper side interface of the three-way water valve 6 is a first outlet 62, and the first outlet 62 is connected to a pipeline between the integrated water valve 14 and the second water pump 12, that is, the first outlet 62 and the integrated water valve 14 are connected in parallel to the liquid inlet end of the second water pump 12.

As shown in fig. 1, the left side interface of the three-way water valve 6 is a second outlet 63, and the second outlet 63 is connected to a liquid inlet end of the condenser 16. Optionally, a branch is further provided in the pipeline between the integrated water valve 14 and the second water pump 12, and the branch is connected to the integrated water valve 14 and the second outlet 63, respectively, and the water path cooling liquid flowing out of the integrated water valve 14 can be converged with the water path cooling liquid flowing out of the second outlet 63 and jointly flow into the liquid inlet end of the condenser 16.

In a further embodiment, the integrated thermal management system further comprises a first one-way valve 71 and a second one-way valve 72. The liquid inlet end of the first one-way valve 71 is connected with the integrated water valve 14, and the liquid outlet end of the first one-way valve 71 is connected with the liquid inlet end of the second water pump 12 and the liquid inlet end of the second one-way valve 72 respectively. The liquid outlet end of the second check valve 72 is connected to the condenser 16.

The first check valve 71 is used to limit the unidirectional flow of the waterway coolant flowing from one of the outlet ends of the integrated water valve 14, and prevent the waterway coolant from flowing back. Under the limitation of the first one-way valve 71, the waterway cooling liquid flowing out from the liquid outlet end connected with the first one-way valve 71 in the integrated water valve 14 can flow to the liquid inlet end of the second water pump 12 and the liquid inlet end of the second one-way valve 72.

As shown in fig. 1, after the liquid outlet end of the second one-way valve 72 is connected to the second outlet 63 of the three-way water valve 6, the liquid outlet end of the second one-way valve 72 and the second outlet 63 are connected to the condenser 16 together, and the water path cooling liquid flowing out of the second one-way valve 72 and the water path cooling liquid flowing out of the second outlet 63 can be converged and flow into the liquid inlet end of the condenser 16 together.

Optionally, the integrated thermal management system further comprises an expansion tank 103, the expansion tank 103 being connected between the integrated water valve 14 and the first one-way valve 71, the expansion tank 103 being used for replenishing waterway coolant, deaeration.

In a further embodiment, as shown in fig. 2, the integrated water valve 14 includes a first input 141, a second input 142, a third input 143, a first output 144, a second output 145, and a third output 146, the first input 141 being in communication with the first output 144, the second input 142 being in communication with the second output 145, the third input 143 being in communication with the third output 146.

The first input 141 is connected to the refrigerator 17 and the first output 144 is connected to the liquid inlet of the first one-way valve 71.

The second input 142 is connected to the refrigerator 17 and the second output 145 is connected to the functional module 2.

The third input 143 is connected to the battery 3 and the third output 146 is connected to the refrigerator 17.

Specifically, the integrated water valve 14 is integrated with three flow passages which are separated from each other, which is helpful for reducing the number of connecting pipelines in the integrated heat pump 1, and making the structure of the integrated heat management system more compact and efficient.

Wherein the first input end 141 and the first output end 144 are connected and form a first flow channel; the second input 142 and the second output 145 are connected and form a second flow path; the third input 143 and the third output 146 are connected and form a third flow path.

In a further embodiment, the liquid inlet end of the first water pump 11 is connected to the functional module 2, and the liquid outlet end of the first water pump 11 is connected to the air conditioning assembly 4. The integrated thermal management system also comprises an electric heater 8, and the electric heater 8 is respectively connected with the liquid outlet end of the second water pump 12 and the battery 3.

The first water pump 11 and the second water pump 12 are both used for driving the waterway coolant. As shown in fig. 1, the left end of the first water pump 11 and the left end of the second water pump 12 are liquid inlet ends, the right end of the first water pump 11 and the right end of the second water pump 12 are liquid outlet ends, and the water path cooling liquid circularly flows in the cooling system under the driving of the first water pump 11 and the second water pump 12.

Illustratively, as shown in fig. 1, after the autopilot controller 21 and the three-in-one assembly 22 are connected in parallel, the autopilot controller is connected in series with an electric drive assembly 23, and the electric drive assembly 23 is connected to the liquid inlet end of the first water pump 11.

The electric heater 8 is used to heat the battery 3, preventing the activity and capacity of the battery 3 from being lowered under low temperature conditions. Illustratively, the electric heater 8 is a PTC (Positive Temperature Coefficient ) heater, which has the advantages of small thermal resistance and high heat exchange efficiency.

In a further embodiment, the integrated thermal management system further comprises a radiator 91 and a fan 92, the radiator 91 being connected to the functional module 2 and the second output 145 of the integrated water valve 14, respectively, the fan 92 being adapted to dissipate heat from the functional module 2.

Illustratively, as shown in fig. 1, the radiator 91 is connected upstream of the autopilot controller 21 and the three-in-one assembly 22, and the radiator 91 can cool down the waterway coolant, so as to improve the cooling effect of the cooling system on the heat dissipation component.

The fan 92 can accelerate the heat exchange speed and improve the heat exchange effect. Illustratively, a temperature detecting member is provided at the upstream end of the functional module 2 for detecting the temperature of the waterway coolant, and the fan 92 is operated in the case where the temperature of the waterway coolant exceeds a temperature threshold value; in the event that the temperature of the waterway coolant is below the temperature threshold, the fan 92 stops operating.

In a further embodiment, the integrated thermal management system further comprises a second electronic expansion valve 101 and a three-way air conditioning connector 102. The second electronic expansion valve 101 is connected between the refrigerator 17 and the air conditioning assembly 4. The first end of the three-way air-conditioning connector 102 is connected with the four-way reversing valve 13, the second end of the three-way air-conditioning connector 102 is connected with the air-conditioning assembly 4, and the third end of the three-way air-conditioning connector 102 is respectively connected with the refrigerator 17 and the condenser 16.

As shown in fig. 1, one end of the second electronic expansion valve 101 is connected with the refrigerator 17, the other end is connected with the air conditioning assembly 4, and the second electronic expansion valve 101 is used for controlling on-off of air conditioning refrigerants between the refrigerator 17 and the air conditioning assembly 4, so as to realize on or off of a refrigerating and heating mode of the air conditioning assembly 4.

As shown in fig. 1, the left end of the three-way air-conditioning connector 102 is a first end, the upper end of the three-way air-conditioning connector 102 is a second end, the right end of the three-way air-conditioning connector 102 is a third end, the third end of the three-way air-conditioning connector 102 is connected with two parallel branches, the first branch is connected to the refrigerator 17, and the second branch is connected to an air-conditioning pipeline where the first electronic expansion valve 15 is located, that is, the second branch is connected between the refrigerator 17 and the condenser 16.

The three-way air-conditioning connector 102 can be connected with the four-way reversing valve 13, the air conditioner, the refrigerator 17 and the condenser 16, so that the normal circulation flow of the air-conditioning refrigerant is ensured.

In a specific embodiment, the four-way reversing valve 13 has a first state and a second state.

In the first state, the output end of the compressor 5 is connected with the condenser 16 through the four-way reversing valve 13, and the input end of the compressor 5 is connected with the first end of the three-way air-conditioning connector 102 through the four-way reversing valve 13.

In the second state, the output end of the compressor 5 is connected with the first end of the three-way air-conditioning connector 102 through the four-way reversing valve 13, and the input end of the compressor 5 is connected with the condenser 16 through the four-way reversing valve 13.

Specifically, when the air conditioning system is in the cooling mode, the four-way reversing valve 13 is in the first state, the condenser 16 releases heat, and the refrigerator 17 absorbs heat; when the air conditioning system is in the heating mode, the four-way reversing valve 13 is in the second state, the condenser 16 absorbs heat, and the refrigerator 17 releases heat.

In a further embodiment, an integrated thermal management system has a first cooling circuit, a second cooling circuit, and a third cooling circuit.

When the first cooling circuit is on, the first water pump 11 is turned on, the first outlet 62 of the three-way water valve 6 is closed, and the second outlet 63 of the three-way water valve 6 is opened.

Specifically, as shown in fig. 3, when the first cooling circuit is turned on, the water path cooling liquid flows through the air conditioning assembly 4, the second outlet 63 of the three-way water valve 6, the condenser 16, the second input 142 and the second output 145 of the integrated water valve 14, the radiator 91, the functional component 2, and the liquid inlet of the first water pump 11 in order from the liquid outlet of the first water pump 11.

When the second cooling circuit is on, both the first water pump 11 and the second water pump 12 are turned on, the first outlet 62 of the three-way water valve 6 is turned on, and the second outlet 63 of the three-way water valve 6 is turned off.

Specifically, as shown in fig. 4, when the second cooling circuit is turned on, the water path coolant flows through the air conditioning assembly 4, the first outlet 62 of the three-way water valve 6, the second water pump 12, the electric heater 8, the battery 3, the third input 143 and the third output 146 of the integrated water valve 14, the refrigerator 17, the first input 141 and the first output 144 of the integrated water valve 14, the first check valve 71, the second check valve 72, the condenser 16, the second input 142 and the second output 145 of the integrated water valve 14, the radiator 91, the functional module 2, and the liquid inlet of the first water pump 11 in this order from the liquid outlet of the first water pump 11. Wherein, the water path cooling liquid flowing out from the first outlet 62 of the three-way water valve 6 also flows to the liquid inlet end of the second one-way valve 72.

With the third cooling circuit on, the second water pump 12 is turned on and the first outlet 62 of the three-way water valve 6 is closed.

Specifically, as shown in fig. 5, when the third cooling circuit is turned on, the water path coolant flows through the electric heater 8, the battery 3, the third input end 143 and the third output end 146 of the integrated water valve 14, the refrigerator 17, the first input end 141 and the first output end 144 of the integrated water valve 14, the first check valve 71, and the liquid inlet end of the second water pump 12 in this order from the liquid outlet end of the second water pump 12.

Wherein the first cooling circuit and the third cooling circuit may be simultaneously turned on.

In a particular embodiment, an integrated thermal management system has a first air conditioning circuit, a second air conditioning circuit, a third air conditioning circuit, and a fourth air conditioning circuit.

When the first air conditioning circuit is turned on, the first electronic expansion valve 15 is opened, the second electronic expansion valve 101 is closed, the four-way reversing valve 13 is in the first state, and the air conditioning assembly 4 stops running.

Specifically, as shown in fig. 6, when the first air conditioning circuit is on, the air conditioning refrigerant flows through the condenser 16, the first electronic expansion valve 15, the refrigerator 17, the third and first ends of the three-way air conditioning connector 102, the four-way reversing valve 13, and the input end of the compressor 5 in this order from the output end of the compressor 5.

When the second air conditioning circuit is turned on, both the first electronic expansion valve 15 and the second electronic expansion valve 101 are opened, the four-way reversing valve 13 is in the first state, and the air conditioning assembly 4 operates.

Specifically, as shown in fig. 7, when the second air conditioning circuit is turned on, the air conditioning refrigerant flows through the condenser 16, the first electronic expansion valve 15, and the refrigerator 17 in order from the output end of the compressor 5, and after flowing out of the refrigerator 17, the air conditioning refrigerant is split into two paths, wherein the first path flows through the third end and the first end of the three-way air conditioning connector 102, the four-way reversing valve 13, and the input end of the compressor 5, and the second path flows through the second electronic expansion valve 101, the evaporation tank of the air conditioning assembly 4, the second end and the first end of the three-way air conditioning connector 102, the four-way reversing valve 13, and the input end of the compressor 5.

When the third air conditioning circuit is turned on, the first electronic expansion valve 15 is opened, the second electronic expansion valve 101 is closed, the four-way reversing valve 13 is in the second state, and the air conditioning assembly 4 stops running.

Specifically, as shown in fig. 8, when the third air conditioning circuit is on, the air conditioning refrigerant flows through the four-way reversing valve 13, the first and third ends of the three-way air conditioning connector 102, the refrigerator 17, the first electronic expansion valve 15, the condenser 16, the four-way reversing valve 13, and the input end of the compressor 5 in this order from the output end of the compressor 5.

When the fourth air conditioning circuit is turned on, both the first electronic expansion valve 15 and the second electronic expansion valve 101 are opened, the four-way reversing valve 13 is in the second state, and the air conditioning assembly 4 operates.

Specifically, as shown in fig. 9, when the fourth air conditioning circuit is turned on, the air conditioning refrigerant sequentially flows through the four-way reversing valve 13 and the first end of the three-way air conditioning connector 102 from the output end of the compressor 5, and then is split into two paths, the first path sequentially flows through the second end of the three-way air conditioning connector 102, the warm air core of the air conditioning assembly 4, and the second electronic expansion valve 101, the second path flows out from the third end of the three-way air conditioning connector 102, merges with the first path air conditioning refrigerant flowing out from the second electronic expansion valve 101, and flows into the input ends of the refrigerator 17, the first electronic expansion valve 15, the condenser 16, the four-way reversing valve 13, and the compressor 5 together.

When the first air conditioning loop and the second air conditioning loop are conducted, the air conditioning system is in a refrigeration mode; when the third air conditioning loop and the fourth air conditioning loop are conducted, the air conditioning system is in a heating mode.

In a further embodiment, the integrated thermal management system has at least one of the first through ninth modes of operation.

In the first mode of operation, as shown in fig. 3, the first cooling circuit is on.

Specifically, in the first operation mode, the functional module 2 is cooled and radiated mainly by the fan 92 and the radiator 91. Alternatively, in the first mode of operation, the passenger compartment may be ventilated by the blower of the air conditioning assembly 4. The first mode of operation is suitable for operating scenarios where the cooling demand is low.

In the second mode of operation, as shown in fig. 4, the second cooling circuit is on and the electric heater 8 is off.

Specifically, in the second operation mode, the first water pump 11 and the second water pump 12 are connected in series, the fan 92 and the radiator 91 cool down and dissipate heat of the functional module 2 and the battery 3, and the water path coolant of the cooling system exchanges heat with the battery 3, so that the temperature of the battery 3 is reduced. The second mode of operation is suitable for use in an operating scenario in which the cooling demand is higher than in the first mode of operation.

As shown in fig. 10, in the third operation mode, the first cooling circuit, the third cooling circuit, and the first air conditioning circuit are turned on, and the electric heater 8 is turned off.

Specifically, in the third operation mode, the fan 92 and the radiator 91 cool down and radiate heat from the functional module 2 and the condenser 16, and the air conditioning system cools down the battery 3.

In the third operation mode, the air conditioning system is in a refrigeration mode, heat released by the condenser 16 is transferred to the water path cooling liquid, the water path cooling liquid flows to the radiator 91, and heat is dissipated through the fan 92 and the radiator 91; the refrigerator 17 corresponds to an evaporator, and the refrigerator 17 absorbs heat and reduces the temperature of the antifreeze of the battery 3 by the water passage coolant of the third cooling circuit, thereby achieving a cooling effect on the battery 3. The third working mode is suitable for working scenes with higher air temperature and higher cooling requirement than the second working mode.

As shown in fig. 11, in the fourth operation mode, the first cooling circuit, the third cooling circuit, and the second air conditioning circuit are turned on, and the electric heater 8 is turned off.

Specifically, in the fourth operation mode, the air conditioning system and the air conditioning assembly 4 are in the cooling mode, the fan 92 and the radiator 91 cool down and dissipate heat from the functional module 2 and the condenser 16, and the air conditioning system cools down the battery 3 and the passenger compartment. Wherein the integrated thermal management system cools the passenger compartment through the air conditioning assembly 4. The third working mode is suitable for working scenes with higher air temperature and higher cooling requirement than the third working mode.

In the fifth mode of operation, as shown in fig. 12, the second cooling circuit is on and the fan 92 is off.

Specifically, in the fifth operation mode, the waste heat generated when the functional module 2 is operated heats the battery 3 and the passenger compartment.

Wherein the fan 92 is turned off, and the water path coolant flows out of the functional module 2 to the air conditioning assembly 4 and the battery 3 through the second cooling circuit, thereby heating the battery 3 and the passenger compartment. The fifth working mode is suitable for working scenes with lower air temperature and certain heating requirements.

As shown in fig. 13, in the sixth operation mode, the second cooling circuit and the third air conditioning circuit are turned on, and the fan 92 is turned on or off according to the temperature of the waterway coolant.

Specifically, in the sixth operation mode, the air conditioning system is in the heating mode, and the air conditioning system applies work through the compressor 5, transfers the waste heat of the functional module 2 collected by the condenser 16 to the refrigerator 17, heats the battery 3, and turns on the fan 92 to dissipate heat as required. The sixth operating mode is suitable for operating scenes with lower air temperature and higher heating requirements than the fifth operating mode.

When the air conditioning system is in a heating mode, the condenser 16 absorbs heat, the water path cooling liquid flows out from the functional component 2 and then is absorbed by the condenser 16, the condenser 16 transfers waste heat to the refrigerator 17 through an air conditioning refrigerant, and the refrigerator 17 exchanges heat with the battery 3 through the water path cooling liquid, so that the temperature of the battery 3 is increased.

Optionally, the integrated thermal management system further includes a temperature detecting element and a fan 92 controller, wherein the temperature detecting element is communicatively connected, the temperature detecting element is disposed at an upstream end of the functional component 2, and the fan 92 controller controls the fan 92 to operate when the temperature of the waterway coolant exceeds a temperature threshold; in the case where the temperature of the waterway coolant is lower than the temperature threshold, the fan 92 controller controls the fan 92 to stop operating, thereby achieving on-demand cooling of the functional components 2, preventing overheating of the functional components 2.

As shown in fig. 14, in the seventh operation mode, the second cooling circuit and the fourth air conditioning circuit are turned on, and the fan 92 is turned on or off according to the temperature of the waterway coolant.

Specifically, in the seventh operation mode, the air conditioning system and the air conditioning assembly 4 are in a heating mode, the air conditioning system works through the compressor 5, and the waste heat of the functional module 2 collected by the condenser 16 is transferred to the refrigerator 17 to heat the battery 3; the air conditioning system applies work through the compressor 5, and the waste heat of the functional component 2 collected by the condenser 16 is transmitted to a warm air core body of the air conditioning assembly 4 to heat the passenger cabin; the fan 92 is turned on as needed to dissipate heat. The seventh operating mode is suitable for an operating scenario in which the air temperature is low and the heating requirement is higher than that of the seventh operating mode.

The operation logic of the fan 92 in the seventh operation mode is the same as the operation logic of the fan 92 in the sixth operation mode, and will not be described herein.

As shown in fig. 15, in the eighth operation mode, the second cooling circuit is turned on, and the electric heater 8 is turned on.

Specifically, in the eighth operation mode, the waste heat of the functional module 2 is transferred to the air conditioning assembly 4, and the waste heat of the functional module 2 preheats the electric heater 8, and the electric heater 8 heats the battery 3. The eighth operation mode is applicable to an operation scenario having a heating requirement of the battery 3.

In the eighth operation mode, the first water pump 11 and the second water pump 12 are connected in series, the compressor 5 does not work, the air conditioning refrigerant in the air conditioning system does not circulate, the waste heat generated during the operation of the functional component 2 is transferred to the air conditioning assembly 4 through the flow of the water path cooling liquid in the second cooling loop, the air conditioning assembly 4 does not heat, and the blower of the air conditioning assembly 4 promotes the heat exchange between the water path cooling liquid and the air, so as to blow out the hot air to the passenger cabin. The waste heat generated during the operation of the functional component 2 is transferred to the electric heater 8 through the flow of the waterway cooling liquid in the second cooling loop, so that the heat exchange effect of the electric heater 8 and the battery 3 is improved.

In the ninth operation mode, as shown in fig. 16, the first cooling circuit and the third cooling circuit are turned on, and the electric heater 8 is turned on.

Specifically, in the ninth operation mode, the waste heat of the functional module 2 is transferred to the air conditioning assembly 4 through the first cooling circuit, and the electric heater 8 heats the battery 3. The ninth operation mode is applicable to an operation scenario having a heating requirement of the battery 3.

In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the present application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. The specification and examples are to be regarded in an illustrative manner only.

It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (12)

1. An integrated thermal management system, characterized in that it comprises an integrated heat pump (1), a functional component (2), a battery (3), an air conditioning assembly (4) and a compressor (5);

the integrated heat pump (1) can allow water path cooling liquid and air conditioner refrigerants to circulate, the integrated heat pump (1) comprises a first water pump (11), a second water pump (12), a four-way reversing valve (13), an integrated water valve (14), a first electronic expansion valve (15), a condenser (16) and a refrigerator (17), the integrated water valve (14) is respectively connected with the refrigerator (17) and the condenser (16), the four-way reversing valve (13) is connected with the condenser (16), and the first electronic expansion valve (15) is connected between the condenser (16) and the refrigerator (17);

the functional component (2), the battery (3), the air conditioning assembly (4) and the compressor (5) are all connected with the integrated heat pump (1).

2. The integrated thermal management system according to claim 1, further comprising a radiator (91) and a fan (92), the radiator (91) being connected to the functional component (2) and the integrated water valve (14), respectively, the fan (92) being adapted to dissipate heat from the functional component (2).

3. The integrated thermal management system of claim 1, wherein the condenser (16) is a water cooled condenser (16).

4. The integrated thermal management system of claim 2, further comprising a three-way water valve (6), the three-way water valve (6) comprising an inlet (61), a first outlet (62) and a second outlet (63), the inlet (61) being connected to the air conditioning assembly (4), the first outlet (62) being connected to the second water pump (12) and the integrated water valve (14), respectively, the second outlet (63) being connected to the condenser (16).

5. The integrated thermal management system of claim 4, further comprising a first check valve (71) and a second check valve (72);

the liquid inlet end of the first one-way valve (71) is connected with the integrated water valve (14), and the liquid outlet end of the first one-way valve (71) is respectively connected with the liquid inlet end of the second water pump (12) and the liquid inlet end of the second one-way valve (72);

the liquid outlet end of the second one-way valve (72) is connected with the condenser (16).

6. The integrated thermal management system of claim 5, wherein the integrated water valve (14) comprises a first input (141), a second input (142), a third input (143), a first output (144), a second output (145), and a third output (146), the first input (141) being in communication with the first output (144), the second input (142) being in communication with the second output (145), the third input (143) being in communication with the third output (146);

The first input end (141) is connected with the refrigerator (17), and the first output end (144) is connected with the liquid inlet end of the first one-way valve (71);

-said second input (142) is connected to said refrigerator (17), and said second output (145) is connected to said functional module (2);

the third input (143) is connected to the battery (3), and the third output (146) is connected to the refrigerator (17).

7. The integrated thermal management system of claim 6, wherein a liquid inlet end of the first water pump (11) is connected to the functional component (2), and a liquid outlet end of the first water pump (11) is connected to the air conditioning assembly (4);

the integrated thermal management system further comprises an electric heater (8), and the electric heater (8) is respectively connected with the liquid outlet end of the second water pump (12) and the battery (3).

8. The integrated thermal management system of claim 7, further comprising a second electronic expansion valve (101) and a three-way air conditioning connector (102);

the second electronic expansion valve (101) is connected between the refrigerator (17) and the air conditioning assembly (4);

the first end of the three-way air-conditioning connector (102) is connected with the four-way reversing valve (13), the second end of the three-way air-conditioning connector (102) is connected with the air-conditioning assembly (4), and the third end of the three-way air-conditioning connector (102) is respectively connected with the refrigerator (17) and the condenser (16).

9. The integrated thermal management system of claim 8, wherein the four-way reversing valve (13) has a first state and a second state;

in the first state, the output end of the compressor (5) is connected with the condenser (16) through the four-way reversing valve (13), and the input end of the compressor (5) is connected with the first end of the three-way air conditioner connector (102) through the four-way reversing valve (13);

in the second state, the output end of the compressor (5) is connected with the first end of the three-way air conditioner connector (102) through the four-way reversing valve (13), and the input end of the compressor (5) is connected with the condenser (16) through the four-way reversing valve (13).

10. The integrated thermal management system of claim 9, wherein the integrated thermal management system has a first cooling circuit, a second cooling circuit, and a third cooling circuit;

when the first cooling circuit is conducted, the first water pump (11) is turned on, the first outlet (62) of the three-way water valve (6) is closed, and the second outlet (63) of the three-way water valve (6) is opened;

when the second cooling loop is conducted, the first water pump (11) and the second water pump (12) are both opened, the first outlet (62) of the three-way water valve (6) is opened, and the second outlet (63) of the three-way water valve (6) is closed;

When the third cooling circuit is on, the second water pump (12) is turned on, and the first outlet (62) of the three-way water valve (6) is turned off.

11. The integrated thermal management system of claim 10, wherein the integrated thermal management system has a first air conditioning circuit, a second air conditioning circuit, a third air conditioning circuit, and a fourth air conditioning circuit;

when the first air conditioning loop is conducted, the first electronic expansion valve (15) is opened, the second electronic expansion valve (101) is closed, the four-way reversing valve (13) is in a first state, and the air conditioning assembly (4) stops running;

when the second air conditioning loop is conducted, the first electronic expansion valve (15) and the second electronic expansion valve (101) are both opened, the four-way reversing valve (13) is in a first state, and the air conditioning assembly (4) operates;

when the third air conditioning loop is conducted, the first electronic expansion valve (15) is opened, the second electronic expansion valve (101) is closed, the four-way reversing valve (13) is in a second state, and the air conditioning assembly (4) stops running;

when the fourth air conditioning loop is conducted, the first electronic expansion valve (15) and the second electronic expansion valve (101) are both opened, the four-way reversing valve (13) is in a second state, and the air conditioning assembly (4) operates.

12. The integrated thermal management system of claim 11, wherein the integrated thermal management system has at least one of the following modes of operation:

the first working mode is that the first cooling loop is conducted;

a second operating mode in which the second cooling circuit is on and the electric heater (8) is off;

the third working mode, in which the first cooling circuit, the third cooling circuit and the first air conditioning circuit are conducted, and the electric heater (8) is turned off;

a fourth operating mode in which the first cooling circuit, the third cooling circuit and the second air conditioning circuit are on and the electric heater (8) is off;

a fifth operating mode in which the second cooling circuit is on and the fan (92) is off;

a sixth operation mode in which the second cooling circuit and the third air conditioning circuit are turned on, and the fan (92) is turned on or off according to the temperature of the waterway coolant;

a seventh operation mode in which the second cooling circuit and the fourth air conditioning circuit are turned on, and the fan (92) is turned on or off according to the temperature of the waterway coolant;

An eighth operating mode in which the second cooling circuit is on and the electric heater (8) is turned on;

and a ninth working mode, wherein in the ninth working mode, the first cooling loop and the third cooling loop are conducted, and the electric heater (8) is started.