CN115923450A - Integrated valve, air conditioning box, thermal management module, system, control method of system and vehicle - Google Patents

Integrated valve, air conditioning box, thermal management module, system, control method of system and vehicle Download PDF

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Publication number
CN115923450A
CN115923450A CN202310046657.0A CN202310046657A CN115923450A CN 115923450 A CN115923450 A CN 115923450A CN 202310046657 A CN202310046657 A CN 202310046657A CN 115923450 A CN115923450 A CN 115923450A
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China
Prior art keywords
pipeline
outlet
way valve
heat exchange
interface
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CN202310046657.0A
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Chinese (zh)
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曹源
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Beijing Jidu Technology Co Ltd
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Beijing Jidu Technology Co Ltd
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Priority to CN202310046657.0A priority Critical patent/CN115923450A/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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Abstract

The integrated valve, the air conditioning box, the heat management module, the system, the control method of the system and the vehicle are suitable for controlling a liquid heat exchange medium in the heat management system, the heat management system comprises a first heat management subsystem and a second heat management subsystem, the first heat management subsystem comprises a heat absorption assembly and a heat dissipation assembly, a plurality of interfaces are arranged on the integrated valve, the external liquid heat exchange medium can be introduced into the integrated valve through the interfaces, the liquid heat exchange medium enters the integrated valve through the first interfaces, and the liquid heat exchange medium further enters the air conditioning box to cool an area where the air conditioning box is located, so that the cooling operation is completed. The structure of a compressor, an evaporator, a condenser, an air door and the like does not need to be arranged at the positions of the air conditioning box and the like, so that the number of the structures in the area where the air conditioning box is located is greatly reduced.

Description

Integrated valve, air conditioning box, thermal management module, system, control method of system and vehicle
Technical Field
The invention relates to the technical field of electric automobiles, in particular to an integrated valve, an air conditioning box, a thermal management module, a system, a control method of the system and a vehicle.
Background
With the increasing popularization of electric vehicles, the requirements for the cooling and heating functions of the electric vehicles are also more and more strict. In the prior art, a heat management system of an electric automobile needs to meet the heating and cooling requirements of a passenger compartment and a power assembly, and also needs to realize the cooling and heating functions of a battery pack.
In the prior art, in order to realize effective temperature rise and drop operation between different areas in a vehicle, a thermal management system of an electric vehicle is disclosed. The air-conditioning box system is arranged in the passenger compartment, a compressor, an air-cooled evaporator and an air-cooled condenser are arranged outside the passenger compartment to form a first heat exchange medium circulation pipeline, the air-conditioning box system comprises the air-cooled evaporator and the air-cooled condenser, an air door is correspondingly arranged on one side of the air-cooled condenser, the air-cooled evaporator can realize refrigeration of the passenger compartment, the air-cooled condenser can realize heating of the passenger compartment, and the air-cooled condenser can realize heat exchange after the air door is opened.
In the above scheme, the air-cooled evaporator, the air-cooled condenser and the air door occupy larger space of the vehicle body, and the water-cooled evaporator and the water-cooled condenser in the first heat exchange medium circulation pipeline make the local tight space.
Disclosure of Invention
The technical problem to be solved by the present invention is therefore to overcome the drawbacks of the prior art that the temperature control of the passenger compartment is performed simultaneously, resulting in a complex structure.
To this end, the invention provides an integrated valve adapted to control a liquid heat exchange medium in a thermal management system, the thermal management system comprising a first thermal management subsystem and a second thermal management subsystem, the first thermal management subsystem comprising a heat sink assembly and a heat sink assembly, comprising:
a first interface and a second interface for connecting therebetween a first heat exchange member coupled in a heat exchange manner with the heat dissipation assembly; a third interface and a fourth interface for connecting therebetween a second heat exchange assembly in heat exchange coupling with the heat sink assembly; a fifth interface and a sixth interface for connecting the second thermal management subsystem therebetween; in the integrated valve, at least one valve is arranged between the first interface and the fifth interface, and at least one valve is arranged between the second interface and the sixth interface.
The invention provides an integrated valve, which further comprises: the first pipeline is communicated with the first interface and the fifth interface; and the second pipeline is communicated with the sixth interface and the second interface.
The invention provides an integrated valve, which further comprises: an eleventh interface and a twelfth interface, the fifth interface and the sixth interface for coupling the third thermal management subsystem therebetween, the eleventh interface in communication with the first interface, the twelfth interface in communication with the second interface; the third pipeline is communicated with the first interface and the eleventh interface; and the fourth pipeline is communicated with the second interface and the twelfth interface.
The invention provides an integrated valve, which further comprises: the second three-way valve is arranged on the first pipeline and is provided with a first outlet and a second outlet, and the first outlet is communicated with the fifth interface; and a third pipeline is arranged on the second outlet and is suitable for being communicated with the eleventh interface.
According to the integrated valve provided by the invention, the second pipeline and the fourth pipeline are combined to form a fifth pipeline; and the sixth interface and the twelfth interface are combined into a backflow interface, and the backflow interface is communicated with the fifth pipeline.
The integrated valve provided by the invention further comprises a seventh interface which is communicated with the first interface; and the eighth interface is communicated with the second interface, and a third heat exchange component which is in heat exchange coupling with a battery is connected between the seventh interface and the eighth interface.
The invention provides an integrated valve, which further comprises: the first three-way valve is arranged on the first pipeline and positioned between the second three-way valve and the first interface, the first three-way valve is provided with a first outlet and a second outlet, the first outlet of the first three-way valve is connected with the inlet of the second three-way valve, the second outlet is suitable for being communicated with a sixth pipeline, and the sixth pipeline is connected with the seventh interface; and one end of the seventh pipeline is connected with the eighth interface, and the other end of the seventh pipeline is communicated with the second interface.
The invention provides an integrated valve, which further comprises: and the fifth three-way valve is arranged on the fifth pipeline and is provided with a first inlet, a second inlet and an outlet, the first inlet of the fifth three-way valve is connected with the sixth interface, the second inlet of the fifth three-way valve is connected with the eighth interface, and the outlet of the fifth three-way valve is connected with the second interface.
The invention provides an integrated valve, which further comprises: and two ends of the one-way stop valve are simultaneously connected with the sixth pipeline and the seventh pipeline and are suitable for controlling the liquid heat exchange medium to flow from the seventh pipeline to the sixth pipeline.
According to the integrated valve provided by the invention, an eighth pipeline is arranged on the fourth interface and communicated with the fifth interface; and one end of the ninth pipeline is communicated with the sixth interface, and the other end of the ninth pipeline is communicated with the fourth interface.
The invention provides an integrated valve, which further comprises: the fourth three-way valve is arranged on the eighth pipeline and comprises a first outlet and a second outlet, and the eighth pipeline is arranged on the first outlet of the fourth three-way valve; a tenth pipeline is communicated with a second outlet of the fourth three-way valve, and one end of the tenth pipeline is suitable for being communicated with the eleventh interface; and one end of the eleventh pipeline is communicated with the twelfth interface, and the other end of the eleventh pipeline is communicated with the fourth interface.
According to the integrated valve provided by the invention, the ninth pipeline and the eleventh pipeline are combined into a heating medium return pipeline, and the heating medium return pipeline is connected with the return interface.
According to the integrated valve provided by the invention, the fifth pipeline and the temperature-raising medium return pipeline are combined to form the medium return pipeline.
The invention provides an integrated valve, which further comprises: a ninth port communicated with the third port, and a twelfth pipeline arranged between the third port and the ninth port;
and a tenth interface communicated with the ninth interface, wherein a thirteenth pipeline is arranged between the tenth interface and the fourth interface, and a fourth heat exchange component in heat exchange coupling with the motor is suitable for being connected between the ninth interface and the tenth interface.
The invention provides an integrated valve, which further comprises: and the third three-way valve is arranged on the eighth pipeline and is positioned between the fourth three-way valve and the third interface, the third three-way valve comprises a first outlet and a second outlet, the first outlet of the third three-way valve is communicated with the fourth three-way valve, and the second outlet of the third three-way valve is provided with the twelfth pipeline.
According to the integrated valve provided by the invention, the ninth pipeline and the eleventh pipeline are converged to the fifth pipeline, the fifth pipeline is provided with a sixth three-way valve, the sixth three-way valve comprises a first outlet and a second outlet, the first outlet of the sixth three-way valve is communicated with the second interface, and the second outlet of the sixth three-way valve is communicated with the fourth interface.
According to the integrated valve provided by the invention, a fourteenth pipeline is communicated between the second outlet of the sixth three-way valve and the thirteenth pipeline;
the integration valve further includes: and the stop valve is arranged on the thirteenth pipeline and is suitable for controlling the on-off of the thirteenth pipeline.
The invention provides an air conditioning box, which is suitable for being connected with an integrated valve provided by the invention, and comprises: the liquid heat exchange medium heat exchange part is suitable for being communicated with the fifth interface and the sixth interface of the integrated valve, and the liquid heat exchange medium heat exchange part is suitable for being introduced into the liquid heat exchange medium heat exchange part; the liquid heat exchange medium heat exchange part is communicated with the air inlet and the air outlet respectively; and the air supply equipment is used for acting on the air inlet and/or the air outlet.
The invention provides a thermal management module for a vehicle, comprising: the first heat exchange medium circulating pipeline comprises a compressor, an evaporator, a condenser and an expansion valve which are connected in series, and a first circulating pump is arranged on the first heat exchange medium circulating pipeline; the second heat exchange medium circulating pipeline comprises a first flow path and a second flow path, and is arranged at the position of the evaporator, and the evaporator is used for cooling the liquid heat exchange medium in the first flow path; and/or a second flow path is arranged at the position of the condenser, the condenser is suitable for heating the liquid heat exchange medium in the second flow path, and a second circulating pump is arranged on the second heat exchange medium circulating line; the invention provides the integrated valve.
According to the heat management module provided by the invention, a gas-liquid separator is arranged on the first heat exchange medium circulating pipeline between the compressor and the expansion valve, one end of a hot gas bypass pipeline is arranged between the compressor and the expansion valve, the other end of the hot gas bypass pipeline acts on the gas-liquid separator, and a bypass expansion valve is arranged on the hot gas bypass pipeline.
According to the heat management module provided by the invention, the second flow path is provided with the auxiliary heating module, and the auxiliary heating module is suitable for being started when the use environment temperature and/or the liquid heat exchange medium is lower than the preset temperature.
According to the heat management module provided by the invention, a first plate type heat exchanger is arranged on the first pipeline at the position corresponding to the evaporator; and/or a second plate heat exchanger is arranged at the position, corresponding to the condenser, of the second pipeline.
The invention provides a thermal management system for a vehicle, comprising: the invention provides a thermal management module; according to the air conditioning box provided by the invention, the fifth interface and the sixth interface of the integrated valve of the heat pipeline module are connected with the air conditioning box; and/or, the eleventh interface and the twelfth interface of the integration valve are connected; the second integrated valve is provided with a plurality of interfaces; the battery heat management loop, the motor heat management loop and the radiator loop are respectively arranged on an interface of the second integrated valve, a radiator is arranged on the radiator loop, and the battery heat management loop, the motor heat management loop and the radiator loop are independently conducted or serially conducted through the second integrated valve; a fifteenth pipeline communicated with the seventh interface and the eighth interface; and the fifteenth pipeline and the sixteenth pipeline are connected with the second integration valve.
The heat management system further comprises a heat radiation fan which is arranged corresponding to the heat radiator.
According to the heat management system provided by the invention, the second integrated valve is an eight-way valve.
The invention provides a control method of a thermal management system, which is used for a vehicle, wherein the number of air-conditioning boxes is two, and the control method comprises the following steps: controlling a first outlet of the first three-way valve to be opened, and controlling a second outlet of the first three-way valve to be closed; controlling the liquid heat exchange medium in the first flow path to enter one group of air-conditioning boxes through a first pipeline and to flow back to a second interface through a second pipeline; and controlling the liquid heat exchange medium in the third pipeline to enter the second air conditioning box through the third pipeline and flow back to the second interface.
Further, the method also comprises the following steps: and adjusting the opening ratio of the first outlet and the second outlet of the second three-way valve to control the flow entering the two groups of air conditioning boxes.
Further, the second outlet of the second three-way valve is controlled to be closed.
The invention provides a control method of a thermal management system, which is used for a vehicle, and the thermal management system provided by the invention comprises the following steps: acquiring the temperature of the battery; when the temperature of the battery is higher than the preset temperature rise temperature of the battery, controlling a second outlet of the first three-way valve to be opened, and closing a first outlet; controlling the second integration valve to enable the liquid heat exchange medium in the sixth pipeline to be communicated with the battery thermal management loop through a fifteenth pipeline; and controlling a first inlet of the fifth three-way valve to be closed, controlling a second inlet of the fifth three-way valve to be opened, and controlling an outlet of the fifth three-way valve to be opened so as to enable a seventh pipeline to be communicated with the second pipeline.
The invention provides a control method of a thermal management system, which is used for a vehicle and adopts the thermal management system provided by the invention, wherein an integrated valve is the integrated valve provided by the invention, and the control method comprises the following steps: acquiring the temperature of a space where a battery and an air conditioning box are located; when the temperature of the battery is higher than the preset temperature rise temperature of the battery; when the temperature of the space where the air conditioning box is located is higher than the preset temperature rise temperature, controlling a first outlet and a second outlet of the first three-way valve to be opened, and controlling a first outlet and a second outlet of the second three-way valve to be opened, so that liquid heat exchange media in the first pipeline enter a first pipeline and a sixth pipeline respectively; controlling the second integration valve to enable the liquid heat exchange medium in the sixth pipeline to be communicated with the battery thermal management loop through a fifteenth pipeline;
and controlling the first inlet and the second inlet of the fifth three-way valve to be opened, and controlling the outlet of the fifth three-way valve to be opened, so that the liquid heat exchange medium in the fifteenth pipeline flows back to the second interface through the fifth three-way valve.
The invention provides a control method of a steam management system, which is used for a vehicle, and is used for controlling the opening ratio of a first outlet and a second outlet of a first three-way valve and controlling the flow of liquid heat exchange media entering a battery heat management loop and an air conditioning box.
The invention provides a control method of a thermal management system, which is used for a vehicle and adopts the thermal management system provided by the invention, wherein the integrated valve is the integrated valve provided by the invention, and the control method comprises the following steps:
controlling the first three-way valve and/or the second three-way valve to be closed;
controlling a first outlet of the third three-way valve to be opened, controlling a second outlet of the third three-way valve to be closed, controlling a first outlet and a second outlet of the fourth three-way valve to be opened, controlling the liquid heat exchange medium in the second flow path to enter an air conditioner box through an eighth pipeline, and controlling the liquid heat exchange medium to flow back to a fourth interface through the ninth pipeline; and controlling the liquid heat exchange medium in the tenth pipeline to enter the second air conditioning box through the tenth pipeline and flow back to the fourth interface.
The invention provides a control method of a thermal management system, which is used for a vehicle, and the thermal management system and an integrated valve provided by the invention comprise the following steps: controlling the first three-way valve and/or the second three-way valve to be closed; controlling a first outlet of the third three-way valve to be opened, controlling a second outlet of the third three-way valve to be closed, controlling a first outlet and a second outlet of the fourth three-way valve to be opened, controlling the liquid heat exchange medium in the second flow path to enter an air conditioner box through an eighth pipeline, and controlling the liquid heat exchange medium to flow back to a fourth interface through the ninth pipeline; controlling the liquid heat exchange medium in the tenth pipeline to enter the second air conditioning box through the tenth pipeline and flow back to the fourth interface; and controlling a second outlet of the sixth three-way valve to be opened, controlling a first outlet of the sixth three-way valve to be closed, and controlling the stop valve to be closed.
Further, still include: and controlling the opening ratio of the first outlet and the second outlet of the fourth three-way valve to control the flow entering the two air conditioning boxes.
The invention provides a control method of a thermal management system, which is used for a vehicle, adopts the thermal management system and an integrated valve provided by the invention and comprises the following steps: controlling the first three-way valve and/or the second three-way valve to be closed; controlling a first outlet and a second outlet of the third three-way valve to be opened, controlling a first outlet and a second outlet of a fourth three-way valve to be opened, and controlling the liquid heat exchange medium in the second flow path to enter one of the air-conditioning boxes through an eighth pipeline and to flow back to a fourth interface through the ninth pipeline; controlling the liquid heat exchange medium in the tenth pipeline to enter the second air conditioning box and flow back to the fourth interface; and controlling a second outlet of the third three-way valve to be opened, enabling the liquid heat exchange medium to enter a twelfth pipeline and enter a battery heat management loop through a sixteenth pipeline, and controlling the stop valve to be opened, so that the liquid heat exchange medium flowing back through the battery heat management loop flows back to a fourth interface through the thirteenth pipeline.
The invention provides a control method of a thermal management system, which is used for a vehicle, controls the opening ratio of a first outlet and a second outlet of a third three-way valve, and controls the flow of liquid heat exchange media entering a battery thermal management loop and an air conditioning box.
The invention provides a control method of a thermal management system, which is used for a vehicle, adopts the thermal management system and an integrated valve provided by the invention, and arranges an auxiliary heating module on a second flow path, and comprises the following steps:
acquiring the outdoor environment temperature of the automobile;
when the outdoor environment temperature is lower than-10 ℃, controlling the auxiliary heating module to start;
controlling a first outlet and a second outlet of the third three-way valve to be opened, controlling a first outlet and a second outlet of a fourth three-way valve to be opened, and controlling the liquid heat exchange medium in the second flow path to enter one of the air-conditioning boxes through an eighth pipeline and to flow back to a fourth interface through the ninth pipeline; controlling the liquid heat exchange medium in the tenth pipeline to enter the second air conditioning box and flow back to the fourth interface; and controlling a second outlet of the third three-way valve to be opened, enabling the liquid heat exchange medium to enter a twelfth pipeline and enter a battery heat management loop through a sixteenth pipeline, and controlling the stop valve to be opened, so that the liquid heat exchange medium flowing back through the battery heat management loop flows back to a fourth interface through the thirteenth pipeline.
The invention provides a control method of a heat management system, which is used for vehicles, adopts the heat management system and an integrated valve provided by the invention, a gas-liquid separator is arranged on a first heat exchange medium circulating pipeline between a compressor and an expansion valve, one end of a hot gas bypass pipeline is arranged between the compressor and the expansion valve, the other end of the hot gas bypass pipeline acts on the gas-liquid separator, and a bypass expansion valve is arranged on the hot gas bypass pipeline, the method comprises the following steps:
acquiring the outdoor environment temperature of the automobile; when the outdoor environment temperature is-20 ℃ and 0 ℃, controlling a bypass expansion valve on a hot gas bypass pipeline to be opened; controlling the first outlet and the second outlet of the third three-way valve to be opened, controlling the first outlet and the second outlet of the fourth three-way valve to be opened, controlling the liquid heat exchange medium in the second flow path to enter one of the air-conditioning boxes through an eighth pipeline, and controlling the liquid heat exchange medium to flow back to a fourth interface through the ninth pipeline; controlling the liquid heat exchange medium in the tenth pipeline to enter the second air conditioning box and flow back to the fourth interface; and controlling a second outlet of the third three-way valve to be opened, enabling the liquid heat exchange medium to enter a twelfth pipeline and enter a battery heat management loop through a sixteenth pipeline, and controlling the stop valve to be opened, so that the liquid heat exchange medium flowing back through the battery heat management loop flows back to a fourth interface through the thirteenth pipeline.
Further, the method comprises the following steps: acquiring the outdoor environment temperature of the automobile; when the outdoor environment temperature is [0 ℃,18 ℃), controlling the first outlet and the second outlet of the third three-way valve to be opened, controlling the first outlet and the second outlet of the fourth three-way valve to be opened, controlling the liquid heat exchange medium in the second flow path to enter one of the air-conditioning boxes through an eighth pipeline, and controlling the liquid heat exchange medium to flow back to a fourth interface through the ninth pipeline; controlling the liquid heat exchange medium in the tenth pipeline to enter the second air conditioning box and flow back to the fourth interface; controlling the second integration valve to connect the battery thermal management loop and the motor thermal management loop in series.
Further, still include: placing the radiator circuit in communication with the fifteenth and sixth conduits; controlling a first outlet and a second outlet of the first three-way valve to be closed and opened so that the liquid heat exchange medium enters the sixth pipeline;
and controlling the sixth three-way valve to be closed, and controlling a second inlet and an outlet of the fifth three-way valve to be opened, so that the seventh pipeline is communicated with the second interface through the fifth three-way valve.
The invention provides a control method of a thermal management system, which is used for a vehicle, and the automobile thermal management system provided by the invention comprises the following steps:
controlling a first outlet of the first three-way valve to be opened and a second outlet of the first three-way valve to be closed; controlling a first outlet and a second outlet of the second three-way valve to be opened, so that liquid heat exchange media enter the two air conditioning boxes through a first pipeline and a third pipeline respectively and flow back to a second interface through the first return pipeline; controlling a first outlet of the third three-way valve to be opened, controlling a second outlet of the third three-way valve to be closed, and controlling at least one of a first outlet and a second outlet of the fourth three-way valve to be opened, so that a liquid heat exchange medium enters at least one of the eighth pipeline or the tenth pipeline.
The invention provides a control method of a thermal management system, which is used for a vehicle, controls the opening degrees of a first outlet and a second outlet of a fourth three-way valve and adjusts the flow rates of liquid heat exchange media entering an eighth pipeline and a tenth pipeline.
Further, a second outlet of the third three-way valve is controlled to be opened, a stop valve is controlled to be opened, the opening degrees of a first outlet and a second outlet of the third three-way valve are controlled, and the flow rates of the liquid heat exchange medium entering the twelfth pipeline and the eighth pipeline are adjusted.
And further, the sixth three-way valve is controlled to be communicated with the fourteenth pipeline, the opening degree of a second outlet of the sixth three-way valve is adjusted, and the flow rate of the waste gas entering the thirteenth pipeline is adjusted.
The invention provides a vehicle, which adopts an integrated valve provided by the invention, an air conditioning box provided by the invention, a thermal management module provided by the invention, a thermal management system provided by the invention, or a control method of the thermal management system provided by the invention.
The technical scheme of the invention has the following advantages:
1. the integrated valve provided by the invention is suitable for controlling a liquid heat exchange medium in a heat management system, the heat management system comprises a first heat management subsystem and a second heat management subsystem, the first heat management subsystem comprises a heat absorption component and a heat dissipation component, a plurality of interfaces are arranged on the integrated valve, the external liquid heat exchange medium can be introduced into the integrated valve through the interfaces, the external liquid heat exchange medium enters the integrated valve through the first interface, and the liquid heat exchange medium further enters an air conditioning box to cool an area where the air conditioning box is located, so that the cooling operation is completed. The structure of a compressor, an evaporator, a condenser, an air door and the like does not need to be arranged at the positions of the air conditioning box and the like, so that the number of the structures in the area where the air conditioning box is located is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a refrigerant circulation pipeline provided by the present invention;
fig. 2 is a system circuit diagram of a control method of the thermal management system provided in embodiment 4;
FIG. 3 is a system circuit diagram of a control method of the thermal management system provided in embodiment 5;
fig. 4 is a flow chart corresponding to the control method of the thermal management system provided in embodiment 5;
FIG. 5 is a system circuit diagram of a control method of the thermal management system provided in embodiment 7;
fig. 6 is a flow chart corresponding to the control method of the thermal management system provided in embodiment 7;
fig. 7 is a system circuit diagram of a control method of the thermal management system provided in embodiment 8;
fig. 8 is a flow chart corresponding to the control method of the thermal management system provided in embodiment 8;
FIG. 9 is a system circuit diagram of a control method of the thermal management system provided in embodiment 10;
fig. 10 is a flow chart corresponding to the control method of the thermal management system provided in embodiment 10;
FIG. 11 is a system circuit diagram of a control method of the thermal management system provided in embodiment 11;
fig. 12 is a flow chart corresponding to the control method of the thermal management system provided in embodiment 11;
fig. 13 is a system circuit diagram of a control method of the thermal management system provided in embodiment 12;
fig. 14 is a flow chart corresponding to the control method of the thermal management system provided in embodiment 12;
FIG. 15 is a system circuit diagram of a control method of the thermal management system provided in embodiment 14;
fig. 16 is a flow chart corresponding to the control method of the thermal management system provided in embodiment 14;
fig. 17 is a system circuit diagram of a control method of the thermal management system provided in embodiment 15;
fig. 18 is a flow chart corresponding to the control method of the thermal management system provided in embodiment 15;
fig. 19 is a system circuit diagram of a control method of the thermal management system provided in embodiment 16;
fig. 20 is a flow chart corresponding to the control method of the thermal management system provided in embodiment 16;
fig. 21 is a flow chart corresponding to the control method of the thermal management system provided in embodiment 17;
fig. 22 is a schematic structural view of an air conditioning box according to embodiment 18.
Description of reference numerals in the examples:
100. an integration valve; 101. a first interface; 102. a second interface; 103. a first pipeline; 104. a second pipeline; 105. an air conditioning cabinet; 1051. a first air conditioning cabinet; 1052. a second air conditioning cabinet; 106. a third pipeline; 107. a fourth pipeline; 108. a fifth pipeline; 109. a sixth pipeline; 110. a seventh pipeline; 111. a fifth interface; 112. a sixth interface; 113. a seventh interface; 114. an eighth interface;
201. a first three-way valve; 202. a second three-way valve; 203. a third three-way valve; 204. a fourth three-way valve; 205. a fifth three-way valve; 206. a sixth three-way valve; 207. a one-way stop valve; 208. a stop valve;
301. a third interface; 302. a fourth interface; 303. an eighth pipeline; 304. a ninth conduit; 305. a tenth pipeline; 306. an eleventh line; 307. a twelfth pipeline; 308. a thirteenth pipeline; 309. a fourteenth pipeline; 310. a ninth interface; 311. a tenth interface;
401. a compressor; 402. an evaporator; 403. a condenser; 404. an expansion valve; 405. a first circulation pump; 406. a first flow path; 407. a second flow path; 408. a second circulation pump; 410. a bypass expansion valve; 411. an auxiliary heating module; 412. a gas-liquid separator;
501. a battery pack; 502. a power assembly; 503. a heat sink; 504. a heat-dissipating fan; 505. a water tank;
600. a second integration valve;
701. a fifteenth pipeline; 702. sixteenth pipeline.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description 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 meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides an integrated valve 100, as shown in fig. 1 to 21, adapted to communicate with an air conditioning box 105 having a liquid heat exchange medium heat exchanging portion, and the integrated valve 100 may be used to implement a temperature raising or lowering operation for the air conditioning box 105, a battery heat management circuit, a motor heat management circuit, and the like. In this embodiment, the integrated valve 100 itself needs to communicate with an external cold source and a heat source, so as to introduce a liquid heat exchange medium into the integrated valve 100, and the liquid heat exchange medium is used to perform heating and cooling operations on different mechanisms.
It should be noted that, in this embodiment, in the battery thermal management loop, a third heat exchange component thermally coupled to the battery is disposed thereon, and the third heat exchange component itself may be a structure that exchanges heat with the battery, such as a plate heat exchanger, or even a box structure that may form a certain contact area with the battery, and a liquid heat exchange medium flows inside the box structure. In the same way, a fourth heat exchange part thermally coupled with the electrodes is arranged on the motor heat management loop, and the structure of the fourth heat exchange part can be consistent with that of the third heat exchange part as long as the heating and cooling operations of the motor can be completed.
Specifically, the liquid heat exchange medium is a liquid heat exchange medium capable of absorbing or releasing heat, and after the liquid heat exchange medium completes the heating or cooling action at the cold source or the heat source, heat exchange can be performed at the position of the air conditioning box 105, so that the air conditioning box 105 can blow cold air or hot air outwards. In this embodiment, the liquid heat exchange medium itself may be a liquid heat exchange medium that is common in the prior art and has a volume that is not easily changed, such as water doped with a refrigerant.
In this embodiment, the integrated valve is adapted to control a liquid heat exchange medium in a thermal management system that includes a first thermal management subsystem and a second thermal management subsystem, the first thermal management subsystem including a heat sink assembly and a heat sink assembly.
In the embodiment, the heat dissipation part can dissipate heat to the outside to reduce the temperature inside the heat dissipation part, and when the liquid heat exchange medium passes through the heat dissipation part, the liquid heat exchange medium can be cooled; in the same way, the heat absorbing component absorbs heat to the outside, so that the temperature in the heat absorbing component is increased, and when the liquid heat exchange medium passes through the heat absorbing component, the temperature of the liquid heat exchange medium is increased.
As shown in FIG. 2, the integrated valve 100 includes
A first interface 101 and a second interface 102, in particular, the first interface and the second interface are used for connecting a first heat exchange component connected with the heat dissipation assembly in a heat exchange manner therebetween, and a liquid heat exchange medium can be cooled through the first heat exchange component. Meanwhile, the first interface 101 can introduce an external cooling medium into the integrated valve, the cooling medium flows into the integrated valve through the first interface, and flows out of the integrated valve through the second interface 102 after the cooling operation of other structures is completed.
In one embodiment, the liquid heat exchange medium introduced into the first interface region has a temperature between [0 ℃,20 ℃ ].
A third interface and a fourth interface for coupling therebetween a second heat exchange assembly in heat exchange connection with the heat absorption assembly; meanwhile, the third port 301 and the second port 102 are suitable for being communicated with a heating medium, the heating medium flows into the integration valve through the third port 301, and flows out of the integration valve through the third port 301 after the heating operation of other structures is completed.
In this embodiment, the temperature of the liquid heat exchange medium passing through the third interface 301 is between [40 ℃,80 ℃ ].
A fifth interface and a sixth interface for connecting the second thermal management subsystem therebetween;
specifically, as shown in fig. 4, the fifth port and the sixth port are disposed at a lower portion of the integration valve, and the liquid heat exchange medium flowing into the integration valve through the first port and the third port 301 flows out of the integration valve through the fifth port and the sixth port, and performs a heat exchange operation with a battery, a motor, and the like through the third heat exchange component or the fourth heat exchange component; after the heat exchange operation with the external structure is completed, the liquid heat exchange medium flows back to the inside of the integration valve through the sixth interface again, and flows out of the integration valve through the second interface 102 and the fourth interface 302 of the integration valve, so that the liquid heat exchange medium can be heated or cooled again.
Further, at a fifth interface and the sixth interface for connecting the second thermal management subsystem therebetween;
specifically, as an implementation manner, the second thermal management subsystem may be an air conditioning box or a motor pipeline, and the fifth interface and the sixth interface may introduce a liquid heat exchange medium for heating or cooling into the air conditioning box or the motor, so as to implement a heating or cooling operation on structures such as the air conditioning box or the motor.
In the integrated valve, at least one valve is arranged between the first interface and the fifth interface, and at least one valve is arranged between the second interface and the sixth interface.
By arranging the valve structure, the flow of the liquid heat exchange medium in the integrated valve can be controlled, so that the cooling or heating operation of the second thermal management subsystem can be realized.
Further, in this embodiment, it should be noted that the first interface, the second interface, the third interface, the fourth interface, the fifth interface, and the sixth interface may be tangible and specific pipeline joints, or may be pipeline structures, structures that need to realize water path communication through adapters, and the like, and therefore, the functions of the structures such as the first interface and the like are mainly to complete the entering and exiting of the liquid heat exchange medium, and therefore, as long as the structures that can realize the functions can be used as different interface structures of the first interface and the second interface in this embodiment.
The integrated valve further includes: the first pipeline is communicated with the first port and the fifth port; and the second pipeline is communicated with the sixth interface and the second interface. Through the pipeline arrangement mode, the cooling operation of the second heat management subsystem can be realized.
In this embodiment, further, the method further includes: an eleventh interface and a twelfth interface, the fifth interface and the sixth interface for coupling the third thermal management subsystem therebetween, the eleventh interface in communication with the first interface, the twelfth interface in communication with the second interface; the third pipeline is communicated with the first interface and the eleventh interface; and the fourth pipeline is communicated with the second interface and the twelfth interface.
Through the arrangement mode, the third thermal management subsystem can be cooled. The third heat management subsystem can be an air conditioning cabinet, so that the temperature control of the two air conditioning cabinets can be realized through the structure.
Further, a second three-way valve 202 is arranged on the first line, said second three-way valve having a first outlet communicating with said one of the fifth connections 111 and a second outlet on which a third line 106 is arranged, said third line being adapted to communicate with said eleventh connection.
Specifically, as shown in fig. 4, the first outlet of the second three-way valve is disposed toward the lower side, and the second outlet of the second three-way valve is disposed toward the right side. Specifically, as shown in fig. 4, the fifth and eleventh ports are provided at both side portions of the two air conditioning boxes.
Further, when the cooling operation of the air conditioning case is completed, it is necessary to return the liquid heat exchange medium to the inside of the integration valve. In this embodiment, a second pipeline 104 and a fourth pipeline 107 are respectively provided to communicate with the second port 102 and the sixth port 112.
In the above-described embodiment, the two air-conditioning boxes are provided with the cooling medium inflow line and the fifth line, which are independent of each other.
It should be noted that the first pipeline 103, the second pipeline 104, the third pipeline, and the fourth pipeline may be tubular structures with certain lengths, which may be tubular structures commonly found in the prior art, such as plastic hard pipes, plastic flexible pipes, or rubber pipes. Correspondingly, the sixth interface and the twelfth interface are combined into a backflow interface, and the backflow interface is communicated with the fifth pipeline.
Further, in this embodiment, by adjusting the structure of the second three-way valve, more pipelines can be branched off, so that temperature control can be performed for more geothermal management subsystems, and the specific structure is similar to that of the above structure and is not limited too much.
In order to conveniently represent the flow path of the liquid heat exchange medium in the integration valve, the flow path of the liquid heat exchange medium is represented by the thickness of lines, wherein the thicker lines represent that the liquid heat exchange medium flows in the integration valve, and the thinner lines represent that the liquid heat exchange medium does not flow in the integration valve.
The structure and operation mode of the integrated valve 100 in the cooling function will be described as follows:
a first cooling mode: the cooling operation of the area where the air-conditioning box 105 is located is as follows:
as shown in fig. 2 and 3, the area where the air-conditioning box 105 is located may be a passenger compartment or other areas requiring cooling. The liquid heat exchange medium for cooling flowing out through the heat radiating member is introduced into the first air conditioning box 1051 through the first pipeline 103, the liquid heat exchange medium heat exchanging part is arranged in the air conditioning box 105, the temperature of the liquid heat exchange medium heat exchanging part is reduced after the cooling water is introduced, and the liquid heat exchange medium heat exchanging part can be cooled down to the passenger compartment after being subjected to ventilation operation. The second three-way valve 202 is disposed on the first pipeline 103, so as to realize the diversion of the liquid heat exchange medium, and the liquid heat exchange medium flowing out through the second outlet of the second three-way valve 202 enters the second air-conditioning box, thereby performing the cooling operation on the second air-conditioning box 1052. Back to the second port 102 through the second line 104; the other enters the second air-conditioning box 1052 and then returns to the second port 102 through the fourth line 107.
It should be noted that, in this embodiment, the liquid heat exchange medium may flow into the integration valve through the first port, then flow into the first air conditioning box 1051 through the fifth port, flow back to the integration valve through the sixth port, and finally flow out of the integration valve through the second port; as a modification, when the first air conditioning compartment 1051 is connected to the first connection port and the second connection port, the liquid heat exchange medium may be introduced into the integration valve through the fifth connection port, introduced into the first air conditioning compartment 1051 through the first connection port, further introduced into the integration valve through the second connection port, and introduced out of the integration valve through the sixth connection port.
As shown in fig. 3, in one embodiment, the first air-conditioning box 1051 itself corresponds to a main driving position in the cabin, and the second air-conditioning box 1052 itself corresponds to a sub-driving position in the cabin. By controlling the second three-way valve 202, the cooling operation can be performed for the main driving seat and the sub-driving seat at the same time.
Further, in the integration valve 100 provided in this embodiment, the second pipeline 104 and the fourth pipeline 107 are converged to form a fifth pipeline 108, and the fifth pipeline 108 is connected to the second port 102. Through the arrangement mode, the two return pipelines are combined, the occupied space of the integrated valve 100 can be effectively reduced, and the air conditioner finishing degree is improved.
Further, in the integration valve 100 according to the present embodiment, the opening degrees of the first outlet and the second outlet of the second three-way valve 202 are adjustable, and the flow rates suitable for the first air-conditioning box 1051 and the second air-conditioning box 1052 are adjusted by adjusting the opening degrees of the first outlet and the second outlet. Through the above arrangement, the flow rates of the liquid heat exchange media flowing out from the first outlet and the second outlet can be effectively controlled, and the cooling effects of the first air-conditioning box 1051 and the second air-conditioning box 1052 can be accurately adjusted.
Specifically, the flow rates of the first outlet and the second outlet of the second three-way valve 202 are proportionally distributed, and if the proportion of the flow rate of the first outlet is 10%, the proportion of the flow rate corresponding to the second outlet is 90%, and at this time, the cooling effect of the second air-conditioning box 1052 corresponding to the second outlet is better. The specific working process is described as follows:
and a second cooling mode: the cooling operation of different degrees is carried out to a plurality of regions, and the working process is as follows:
the required temperatures of the areas where the first air-conditioning box 1051 and the second air-conditioning box 1052 are located are obtained, the opening degrees of the first outlet and the second outlet in the second three-way valve 202 are adjusted according to the temperature requirements of two different areas, and in the cooling mode, if the required temperatures are lower, the corresponding opening degrees are larger. For example: the temperature demand of the first air-conditioning case 1051 is 20 deg.c and the temperature demand of the second air-conditioning case 1052 is 25 deg.c, and at this time, the opening ratio of the first outlet of the second three-way valve 202 is controlled to be 45% and the opening ratio of the second outlet of the second three-way valve 202 is controlled to be 55%.
As shown in fig. 4, in addition to the cooling operation for the two air conditioning boxes, the cooling operation may be performed for other external structures in this embodiment. In order to achieve the introduction of the reduced-temperature liquid heat exchange medium to the outside, the integration valve further includes:
the seventh interface is communicated with the first interface;
and the eighth interface is communicated with the second interface, and a third heat exchange component which is in heat exchange coupling with a battery is connected between the seventh interface and the eighth interface.
In this embodiment, in order to introduce the cooled liquid heat exchange medium into the seventh interface, a pipeline may be directly connected between the first interface and the seventh interface. As a modification, the integration valve 100 provided in the present embodiment further includes: a first three-way valve 201, which is arranged on the first pipeline 103 and between the second three-way valve 202 and the first port 101, wherein the first three-way valve 201 is provided with a first outlet and a second outlet, the first outlet is connected with the inlet of the second three-way valve 202, and the second outlet is suitable for being communicated with the sixth pipeline 109;
specifically, as viewed in fig. 4, the first outlet is disposed downward, and the second outlet is disposed rightward. The first three-way valve 201 is disposed above the second three-way valve 202, and the external liquid heat exchange medium first flows to the first three-way valve 201, and then flows out through the first outlet and enters the second three-way valve 202: the liquid heat exchange medium (such as cooling water) flowing out through the second outlet enters the sixth pipeline 109, and then the other pipelines are cooled.
As shown in fig. 5 and 6, in order to reintroduce the liquid heat exchange medium having completed the cooling operation into the integrated valve, a seventh pipeline 110 is further disposed inside the integrated valve, and has one end connected to the eighth port and the other end connected to the second port 102.
Specifically, after the liquid heat exchange medium completes the cooling operation on the other circuits, the heated liquid heat exchange medium flows back to the integration valve 100 through the seventh pipe 110, and further flows to the second port 102. The following describes the specific working process:
and a cooling mode III: the air conditioning box 105 and other external pipelines are cooled simultaneously, and the working process is as follows:
the first outlet and the second outlet of the first three-way valve 201 are controlled to be opened, the cooled liquid heat exchange medium enters the second three-way valve 202 downwards, and the liquid heat exchange medium entering the second three-way valve 202 can be divided into two modes: the first type flows out only through the first outlet or the second outlet of the second three-way valve 202 to perform a cooling operation for one of the first air-conditioning case 1051 and the second air-conditioning case 1052; the second type simultaneously flows out through the first outlet and the second outlet while performing a cooling operation for the first and second air- conditioning boxes 1051 and 1052;
then, the cooled liquid heat exchange medium flowing out of the second outlet of the second three-way valve 202 flows into a sixth pipeline 109, the sixth pipeline 109 may be communicated with a battery thermal management circuit, a motor thermal management circuit, and the like, and after the cooling operation is completed, the formed liquid heat exchange medium with relatively high temperature flows back to the integration valve 100 through the seventh pipeline 110, flows to the heat dissipation component through the second interface 102, and is cooled again.
As shown in fig. 5, further, the integration valve 100 provided in the present embodiment further includes: a fifth three-way valve 205 is arranged on the second line 104, the inlet of the fifth three-way valve 205 being adapted to communicate with the seventh line 110.
Specifically, as shown in fig. 5, the fifth three-way valve 205 is provided with two inlets, the second inlet is arranged towards the right side, the first inlet is arranged towards the lower side, the second inlet is used for communicating with the seventh pipeline 110, the first inlet is used for communicating with the second pipeline 104 (the fifth pipeline 108), and the liquid heat exchange medium flowing from the lower side and the right side is collected at the fifth three-way valve 205 through the fifth three-way valve 205 and flows from the outlet of the fifth three-way valve 205 to the second port 102. The seventh pipeline 110 and the second pipeline 104 are combined with each other by the fifth three-way valve 205, so that the pipelines are simplified, and the space utilization efficiency is improved.
Further, in the integration valve 100 provided in this embodiment, the opening degrees of the first outlet and the second outlet of the first three-way valve 201 are adjustable, and the flow rates into the air conditioning box 105 and the sixth pipeline 109 are adjusted by adjusting the opening degrees of the first outlet and the second outlet. Through the setting mode, the air conditioning box 105, the battery heat management loop and the motor heat management loop can be controlled in different proportions in the refrigeration mode. Specifically the control logic may refer to mode three.
The integration valve provided in this embodiment, as shown in fig. 6, further includes a one-way stop valve 207, and both ends of the one-way stop valve are connected to the sixth pipeline 109 and the seventh pipeline 110. When the one-way shutoff valve 207 is opened and the second outlet of the first three-way valve 201 and the second outlet of the fifth three-way valve 205 are closed, a closed loop is formed among the sixth pipeline 109, the circuits such as the battery thermal management circuit connected to the integration valve, and the seventh pipeline 110.
The structure and the operation mode of the integration valve 100 in the warming function are described below:
as shown in fig. 9 to 12, the present embodiment provides an integrated valve 100 further including:
the third interface 301 and the fourth interface 302 are suitable for being communicated with a liquid heat exchange medium obtained by heating through a heat absorbing part;
specifically, the third port 301 is configured to implement an introduction operation of the external liquid heat exchange medium, and after the liquid heat exchange medium completes a temperature raising operation of the related structure, the liquid heat exchange medium with a reduced temperature flows out of the integration valve 100 through the fourth port 302. In this embodiment, the temperature of the liquid heat exchange medium may be adjusted according to different working conditions, and as an implementation manner, the temperature range of the liquid heat exchange medium itself is [40 ℃ to 80 ℃ ].
Similarly, the third port 301 and the fourth port 302 are suitable for the communication of the external liquid heat exchange medium, and may be a specific pipe joint, or a pipe structure, and the communication of the water path is realized through an adapter or the like.
As shown in fig. 10, an eighth pipeline 303, one end of which is connected to the third interface 301, and the other end of which is adapted to be connected to the water inlet of the first air conditioning box 1051;
as shown in fig. 10, a ninth pipe 304 has one end connected to the fourth port 302 and the other end adapted to be connected to the water outlet of the first air conditioning box 1051. Specifically, the eighth pipe 303 and the eleventh pipe 306 are used to convey an external liquid heat exchange medium to the inside of the air-conditioning case 105, and then perform a heat exchange operation in the air-conditioning case 105. It may be a tubular structure with a certain length, which may be a plastic hard tube, a plastic soft tube or a rubber tube, etc. which are common in the prior art.
The liquid heat exchange medium enters the integration valve 100 through the third port 301, flows into the first air conditioning box 1051 through the eighth pipe 303, performs a heat exchange operation inside the first air conditioning box 1051, and then flows back to the fourth port 302 through the ninth pipe 304, completing a cycle.
Further, in the integration valve 100 provided in the present embodiment, the eighth line 303 communicates with the first line 103. Through foretell mode of setting, will two originally independent pipelines at first intersect, then realize the transport to the liquid heat exchange medium of intensification and cooling simultaneously through a pipeline, can reduce the quantity of the interface on air conditioning cabinet 105, and then improve the degree of simplifying of whole equipment, reduce work piece quantity.
In this embodiment, in order to realize the heating operation of the first air-conditioning box 1051 and the second air-conditioning box 1052, two independent pipelines may be simultaneously led out from the third port; as a modification, as shown in fig. 11, the present embodiment provides an integration valve 100 further including:
as shown in fig. 11, a fourth three-way valve 204 is disposed on the eighth pipeline 303, the fourth three-way valve 204 includes a first outlet and a second outlet, the first outlet of the fourth three-way valve 204 is communicated with the first pipeline 103, a tenth pipeline 305 is communicated with the second outlet of the fourth three-way valve 204, and one end of the tenth pipeline 305 is adapted to be communicated with a water inlet of the second air-conditioning box 1052;
as shown in fig. 14, one end of the eleventh pipeline 306 is communicated with the twelfth interface, and the other end is communicated with the fourth interface.
Specifically, as shown in fig. 12, the first outlet of the fourth three-way valve extends toward the left side, the second outlet extends toward the lower side, and both the inlet and the first outlet of the fourth three-way valve 204 are provided on the eighth line 303. Through setting up fourth three-way valve 204, can be two with the liquid heat exchange medium reposition of redundant personnel of third interface 301 to can provide liquid heat exchange medium for first air-conditioning case 1051 and second air-conditioning case 1052 simultaneously, and then heat up the operation, and then promote the compact structure type of whole pile valve structure greatly.
Further, the ninth pipeline and the eleventh pipeline are combined to form a heating medium return pipeline, and the heating medium return pipeline is connected with the return interface. Thereby realizing the simplification of the structure.
A first heating mode: heating up the areas where the first air-conditioning box and the second air-conditioning box are located, wherein the working process is as follows:
the first outlet and the second outlet of the fourth three-way valve 204 are controlled to be opened, the liquid heat exchange medium flowing in through the third port 301 is divided into two paths, one path flows into the first air-conditioning box 1051 through the eighth pipeline 303, the other path flows out through the second outlet of the fourth three-way valve 204 and enters the tenth pipeline 305, and the tenth pipeline 305 brings the liquid heat exchange medium into the second air-conditioning box 1052. The liquid heat exchange medium flowing out of the second air-conditioning box 1052 enters the second hot water return line, then further flows to the fourth port 302, and then is heated again by the heat source to repeatedly flow back into the integration valve 100.
In this embodiment, further, in order to improve the compactness of the structure, the ninth pipe 304 and the eleventh pipe 306 are merged into a liquid heat exchange medium return pipe. Through the setting mode, the two pipelines can be collected, only one corresponding interface needs to be set at the moment, and the liquid heat exchange medium after the temperature rise operation is finished can be guided to the position of the fourth interface 302, so that the structure can be simplified, and the space utilization efficiency is improved.
Further, the present embodiment provides that in the integration valve 100, as an embodiment, the liquid heat exchange medium return line and the fifth line 108 may be provided independently of each other; as another embodiment, the liquid heat exchange medium return line and the fifth line 108 are merged into a medium return line, at this time, in order to simultaneously realize the diversion operation of the heated and cooled liquid heat exchange medium on the same medium return line, and in order to divert the heated and cooled liquid heat exchange medium to different positions, a sixth three-way valve 206 is disposed on the medium return line, the sixth three-way valve 206 includes a first outlet and a second outlet, the first outlet of the sixth three-way valve 206 is communicated with the second port 102, and the second outlet of the sixth three-way valve 206 is communicated with the fourth port 302. Through the sixth three-way valve 206, two mutually independent pipelines are combined, and the simplification degree of the internal structure is further realized.
The operation of the sixth three-way valve 206 is as follows:
when the air-conditioning box 105 needs to be refrigerated, the first outlet of the sixth three-way valve 206 is controlled to be opened, the second outlet of the sixth three-way valve 206 is controlled to be closed, and at the moment, water flowing out of the fifth pipeline 108 directly flows to the position of the second interface 102 through the sixth three-way valve 206; when heating needs to be performed on the air conditioning box 105, the first outlet of the sixth three-way valve 206 is controlled to be closed, the second outlet of the sixth three-way valve 206 is controlled to be opened, and at this time, water flowing out of the hot water return pipeline directly flows to the fourth port 302 through the second outlet of the sixth three-way valve 206.
Further, as shown in fig. 13, when it is necessary to heat other structures except the second thermal management subsystem, the present embodiment additionally provides:
a ninth port, which is communicated with the third port, through which a liquid heat exchange medium flowing in through the third port flows out to the outside of the integration valve, and a twelfth pipeline is arranged between the third port and the ninth port;
a tenth interface, which is communicated with the ninth interface, wherein a thirteenth pipeline is arranged between the tenth interface and the fourth interface, and a motor thermal management loop is suitable for being connected between the ninth interface and the tenth interface;
further, two independent pipe structures may be used between the twelfth pipe and the first pipe 103. As another implementation manner, in this embodiment, a third three-way valve 203 is further disposed inside the integrated valve, is disposed on the eighth pipeline 303, and includes a first outlet and a second outlet, the first outlet of the third three-way valve 203 is communicated with the first pipeline 103, the second outlet of the third three-way valve 203 is provided with a twelfth pipeline 307, and the twelfth pipeline 307 is adapted to connect one or more of the battery pack 501, the powertrain 502, and the radiator 503;
a thirteenth pipe 308 adapted to connect one or more of the battery pack 501, the power assembly 502 and the radiator 503, wherein one end of the thirteenth pipe 308 is connected to the fourth port 302;
specifically, by providing the third three-way valve 203, the hot water flowing out through the fourth port 302 is divided into two paths, one path of the hot water flows into the air conditioning box 105 through the first pipeline 103, and the other path of the hot water flows outside the integration valve 100 through the twelfth pipeline 307, so that the heating operation is performed for the structure outside the integration valve 100. In this embodiment, the twelfth pipe 307 and the thirteenth pipe 308 are used to communicate with external pipes and heat the battery pack 501, the power assembly 502, and the like on the external pipes.
Further, in this embodiment, the hot water flowing out through the second outlet of the sixth three-way valve 206 may be directly connected to the fourth port 302; as a variant, as shown in fig. 14, a fourteenth pipeline 309 may be communicated between the second outlet of the sixth three-way valve 206 and the thirteenth pipeline 308, so as to further simplify the pipeline and avoid too many pipelines inside the integrated valve. At this time, a shutoff valve 208 is provided on the thirteenth line 308, and the shutoff valve 208 is adapted to control the opening and closing of the thirteenth line 308.
Specifically, the operation of the shut-off valve 208 is as follows:
when heat needs to be supplied to the air conditioning box 105 and the external pipeline at the same time, the first outlet and the second outlet of the third three-way valve 203 are controlled to be opened, the stop valve 208 is controlled to be opened at the same time, the liquid heat exchange medium flowing out of the second outlet of the third three-way valve 203 flows into the thirteenth pipeline 308 after heat exchange with a battery, a motor and the like is completed, and water in the thirteenth pipeline 308 can directly flow to the fourth interface 302 due to the opening of the stop valve 208;
when heat supply is only needed for the air-conditioning box 105, the first outlet of the third three-way valve 203 is controlled to be opened, the second outlet of the third three-way valve 203 is controlled to be closed, the liquid heat exchange medium flows out of the air-conditioning box 105 and then enters the fourteenth pipeline 309 through the sixth three-way valve 206, the liquid heat exchange medium in the fourteenth pipeline 309 enters the thirteenth pipeline 308 and then can flow towards the fourth port 302 and the outside of the integration valve at the same time, as shown in fig. 14, the liquid heat exchange medium can flow upwards or downwards at the same time, at this time, the stop valve 208 is controlled to be closed, the path for the liquid heat exchange medium to flow outside the integration valve is closed, and therefore the liquid heat exchange medium is ensured to flow towards the fourth port 302 only,
further, the stop valve 208 itself controls the opening and closing of the thirteenth pipeline 308 by turning on and off, and as an embodiment, when the stop valve 208 is not energized, the stop valve 208 will be normally open, thereby ensuring that the thirteenth pipeline 308 remains open. As another example, the valve may be normally open when the shut-off valve 208 is not energized.
In this embodiment, pile-up valve 100 self can set up the casing, and with inside relevant pipeline and the three-way valve integration to the casing, through such mode of setting up, can improve the worker's of whole structure degree, can make things convenient for the assembly operation of later stage to pile-up valve 100 simultaneously.
In this embodiment, the three-way valves including the first three-way valve may adopt an electromagnetic structure to control opening and closing of the inlets and the outlets provided thereon, the three-way valves may adopt conventional interfaces in the prior art, and the electromagnetic interfaces are respectively provided at the inlet and the outlet, so that independent opening and closing operations of the inlet and the outlet may be controlled.
Example 2
The present embodiments provide a thermal management module for a vehicle, comprising:
a first heat exchange medium circulation line including a compressor 401, an evaporator 402, a condenser 403, and an expansion valve 404 connected in series, the first heat exchange medium circulation line being provided with a first circulation pump 405;
the working principle of the first heat exchange medium circulation line as a whole can be regarded as follows: the gaseous refrigerant enters the compressor 401, is compressed by the compressor 401 and then is converted into a temperature-rising high-pressure refrigerant, and the temperature-rising high-pressure refrigerant exchanges heat at the condenser 403 and is converted into a medium-temperature medium-pressure refrigerant; the refrigerant is throttled by the expansion valve 404, the pressure and the temperature are further reduced, and the refrigerant may become a gas-liquid two-phase mixture, and becomes a gaseous refrigerant after heat exchange by the evaporator 402, and returns to the compressor 401, thereby completing one cycle operation. Meanwhile, the first circulation pump 405 may assist the refrigerant to flow in the first heat exchange medium circulation line.
Further, a refrigerant is required to flow in the first heat exchange medium circulation pipeline, in this embodiment, the refrigerant itself may be selected from media commonly used in the prior art, including but not limited to CHF 2 CHF 2 (tetrafluoroethane), R744 (carbon dioxide), R718 (water), R290 (propane), R717 (ammonia), R410a (mixture of 50% difluoromethane and 50% pentafluoroethane), R32 (difluoromethane), R12 (CCl) 2 F 2 ) And the like, commonly used refrigerants in the prior art, or a combination of any two or more of these refrigerants. Meanwhile, in order to realize stable work in a cooling environment, the refrigerant can be injectedAdding antifreeze and other substances to improve the antifreezing property of the material.
A second heat exchange medium circulation pipeline, including a first flow path 406, disposed at the position of the evaporator 402, wherein the first flow path 406 is suitable for introducing a liquid heat exchange medium for temperature reduction, the evaporator 402 is used for performing a temperature reduction operation on the liquid heat exchange medium, and a second circulation pump 408 is disposed on the second heat exchange medium circulation pipeline;
and/or the presence of a gas in the gas,
a second flow path 407, disposed at the position of the condenser 403, wherein the second flow path 407 is suitable for introducing a liquid heat exchange medium, and the condenser 403 is suitable for performing a temperature raising operation on the liquid heat exchange medium;
the evaporator 402 itself provides a cooling environment, and when the liquid heat exchange medium in the first flow path 406 flows to the position of the evaporator 402, the evaporator 402 cools the liquid heat exchange medium. The condenser 403 itself provides a temperature raising environment, the liquid heat exchange medium in the second flow path 407 flows to the position of the condenser 403, and the condenser 403 raises the temperature of the liquid heat exchange medium.
Through setting up second circulating pump 408, can drive the water in the second heat exchange medium circulation pipeline, second circulating pump 408 itself can set up on first flow path 406, also can set up on second flow path 407, as long as can accomplish the drive action to liquid heat exchange medium.
The integrated valve provided in example 1;
the plurality of interfaces arranged on the integrated valve are used for being connected with the twelfth pipeline 307, the thirteenth pipeline 308, the first pipeline 103 and the second pipeline 104, so that the leading-out and leading-back operation of the liquid heat exchange medium is realized.
The thermal management module that this embodiment provided, it has integrated first heat exchange medium circulation pipeline and second heat exchange medium circulation pipeline, through these two pipelines, can provide the liquid heat exchange medium that has the uniform temperature for the pile valve, simultaneously through being connected with the pile valve, can distribute the liquid heat exchange medium of the intensification of outside or cooling through the pile valve to effectively heat up and the operation of cooling to different structures.
Further, as shown in fig. 17, in the present embodiment, a gas-liquid separator 412 is provided on the first heat exchange medium circulation line between the compressor 401 and the expansion valve 404, a hot gas bypass line has one end provided between the compressor 401 and the expansion valve 404 and the other end acting on the gas-liquid separator 412, and a bypass expansion valve 410 is provided on the hot gas bypass line.
The gas-liquid separator mainly has the following functions: protection of the compressor 401 during the return of refrigerant liquid after start-up, operation or defrost is achieved primarily by separating and preserving the refrigerant liquid in the return air line. Gas-liquid separator 412 provides additional internal volume to the low pressure side of the system, temporarily storing excess refrigerant liquid, and also preventing excess refrigerant flow to the compressor 401 crankcase causing dilution of the oil.
Further, as shown in fig. 19, in the present embodiment, an auxiliary heating module 411 is provided on the second flow path 407, the auxiliary heating module 411 being adapted to be activated when the usage environment temperature and/or the liquid heat exchange medium is lower than a preset temperature.
Specifically, in this embodiment, the auxiliary heating module 411 may adopt an HVH (high voltage heater), and the second flow path is heated by the HVH, so as to rapidly heat the liquid heat exchange medium, thereby achieving the purpose of rapidly heating the passenger compartment and the battery.
Furthermore, in order to realize heat exchange between the first flow path and the second flow path, a first plate heat exchanger is arranged at a part, corresponding to the evaporator, of the first flow path; and/or a second plate heat exchanger is arranged on the part, corresponding to the condenser, of the second flow path. By adopting the plate type heat exchange mode, the heat exchange efficiency is effectively improved.
Example 3
The present embodiments provide a thermal management system for a vehicle, comprising:
the thermal management module of example 2;
an air conditioning box 105 to which the fifth and sixth interfaces of the heat pipe module are connected; and/or, the eleventh interface and the twelfth interface of the integration valve are connected;
a liquid heat exchange medium heat exchange part is arranged in the air conditioning box 105, the liquid heat exchange medium heat exchange part is communicated with the first flow path 406 and the second flow path 407 of the heat management module, and the air conditioning box 105 is arranged corresponding to the passenger compartment;
specifically, in this embodiment, the liquid heat exchange medium heat exchanging portion itself may exchange heat with the liquid heat exchange medium when the liquid heat exchange medium is introduced.
A second integration valve 600 having a plurality of ports formed thereon;
a battery thermal management loop, a motor thermal management loop and a radiator 503 loop are respectively arranged on the interface of the second integrated valve 600, the radiator 503 loop is provided with the radiator 503, and the battery thermal management loop, the motor thermal management loop and the radiator 503 loop are independently conducted or conducted in series through the second integrated valve 600;
specifically, a third thermal management subsystem is arranged on the battery thermal management loop, a fourth thermal management subsystem is arranged on the motor thermal management loop, the third thermal management subsystem is arranged corresponding to the battery pack 501, and the fourth thermal management subsystem is arranged corresponding to the motor.
The automobile radiator is characterized in that a plurality of groups of motors are arranged in the automobile, the motors can be front-drive motors or rear-drive motors, the front-drive motors and the rear-drive motors can be further included, a radiator 503 structure is arranged on a radiator 503 loop, the radiator 503 has a large surface area, and the heat dissipation area is increased, so that subsequent convection with air is facilitated, and the heating or cooling effect is achieved.
In this embodiment, the battery pack 501 is a core energy source of the vehicle, and provides driving electric energy for the vehicle. The battery pack 501 in the present embodiment is a common battery pack 501 in the related art. As an embodiment, a lithium iron phosphate battery, a ternary lithium battery, a cobalt-free battery, a lithium titanate battery, and a lithium manganate battery may be used. The battery pack 501 generally includes a positive electrode, a negative electrode, an electrolyte, a separator, a battery case, a plurality of battery cells, and the like, and is integrated with a battery management system for facilitating power control.
A fifteenth pipeline 701, which is communicated with the seventh interface and the eighth interface;
and a sixteenth pipe 702 communicated with the second flow path, wherein the fifteenth pipe 701 and the sixteenth pipe 702 are connected to the first integration valve and the second integration valve 600, respectively.
Specifically, as shown in fig. 19, a fifteenth pipeline 701 and a sixteenth pipeline 702 are respectively located in the middle of the integration valve and the second integration valve 600, and the liquid heat exchange medium flows into the fifteenth pipeline 701 and the sixteenth pipeline 702 through the integration valve, then further enters the second integration valve 600, returns to the second integration valve 600 after completing heat exchange with the battery thermal management circuit, the motor thermal management circuit and the radiator 503 circuit, and returns to the integration valve through the fifteenth pipeline 701 and the sixteenth pipeline 702 again.
In this embodiment, in order to improve the heat dissipation effect of the heat sink 503, a heat dissipation fan 504 is further included, and is disposed corresponding to the heat sink 503.
Further, in this embodiment, the structure of the second integration valve 600 itself is not limited as long as serial connection or independent conduction between different water paths can be achieved. As an implementation manner, in this embodiment, the second integrated valve 600 is an eight-way valve, the eight-way valve itself has nine interfaces, the nine interfaces are used for connecting with external pipelines, and inside the eight-way valve, the conduction of the internal flow channel can be controlled, and at most eight different communication structures can be formed.
In the prior art, in order to simultaneously realize heating or cooling operations on a passenger compartment, a battery, a motor and other structures, an air-conditioning box 105 system is generally arranged in the passenger compartment, a compressor 401, an air-cooled evaporator and an air-cooled condenser are arranged outside the passenger compartment to form a first heat exchange medium circulation pipeline, the air-conditioning box 105 system comprises the air-cooled evaporator and the air-cooled condenser, an air door is correspondingly arranged on one side of the air-cooled condenser, the air-cooled evaporator can realize refrigeration of the passenger compartment, the air-cooled condenser can realize heating of the passenger compartment, and the air-cooled condenser can realize heat exchange after the air door is opened. Meanwhile, a water-cooled evaporator 402 and a water-cooled condenser 403 are connected in series on a first heat exchange medium circulation pipeline outside the passenger compartment, the water-cooled condenser 403 and the water-cooled evaporator 402 are respectively connected with a water circulation pipeline, the water-cooled condenser 403 and the water-cooled evaporator 402 heat or cool water in the water circulation pipeline connected with the water-cooled condenser 403 and the water-cooled evaporator 402, and the heated or cooled water is further applied to a battery pack 501 or a power assembly 502 of the electric vehicle, so that the heating or cooling operation is realized.
In this embodiment, through a set of first heat exchange medium circulation pipeline, can carry out cooling and heating operation for structures such as passenger cabin, battery and motor simultaneously, can reduce occupied space and reduce the structure quantity that relates effectively.
Further, in this embodiment, a water tank 505 is further disposed on the battery thermal management loop and/or the motor thermal management loop, and water may be injected into the water tank 505, and the water is used to form a heating or liquid heat exchange medium.
Example 4
In the present embodiment, with the thermal management system in embodiment 3, there is provided a thermal management system control method for a vehicle.
As shown in fig. 2, provided in the present embodiment are the cooling modes for the first air conditioning box and/or the second air conditioning box: this mode is used to cool the passenger compartment in summer or other external warm-up conditions when the battery is operating at low power and no heat is being dissipated. The method comprises the following steps:
the control method comprises the following steps of:
controlling one of a first outlet and a second outlet of the first three-way valve to open;
controlling the liquid heat exchange medium in the first flow path to enter one group of air-conditioning boxes through a first pipeline and return to a second interface through a second pipeline;
and controlling the liquid heat exchange medium in the third pipeline to enter the second air conditioning box through the third pipeline and flow back to the second interface.
Specifically, the first predetermined warming temperature may be selected from a temperature generally used in the art, such as 35 ℃, when the passenger compartment is perceived by a typical person as being hot.
It should be noted that the first air conditioning box 105 in this embodiment may be an air conditioner in the main driving position, an air conditioner in the sub-driving position, or an air conditioner in a rear specific area.
Further, in order to ensure stable refrigeration of the evaporator 402, it is necessary to discharge heat generated by the condenser 403 to the outside, at this time, the second outlet of the third three-way valve 203 is controlled to be opened, the first outlet is closed, the liquid heat exchange medium in the second flow path 407 is introduced into the twelfth pipeline 307, the liquid heat exchange medium flows into the second integration valve 600 through the sixteenth pipeline 702, the second integration valve 600 is controlled, and the motor thermal management circuit is connected in series with the radiator 503 circuit; the shutoff valve 208 is controlled to open, and the thirteenth line 308 is communicated with the sixteenth line 702.
Through the above steps, the heat generated by the condenser 403 is sufficiently released to the external atmosphere through the radiator 503, thereby ensuring sufficient cooling of the liquid heat exchange medium by the evaporator 402.
By this mode, it is possible to ensure at least that the liquid heat exchange medium can enter the first air-conditioning compartment or the second air-conditioning compartment.
Example 5
In the present embodiment, with the thermal management system in embodiment 3, there is provided a thermal management system control method for a vehicle.
As shown in fig. 3 and 4, provided in the present embodiment are cooling modes for the first and second passenger compartments: this mode is used to cool the passenger compartment in summer or other external warm-up conditions, when the battery is operating at low power and no heat is required to dissipate. The method comprises the following steps:
the embodiment can directly adopt a mode of automatically acquiring the external temperature to control the first air-conditioning box and the second air-conditioning box to start. When the automatic control mode is adopted, the following signal acquisition modes can be adopted:
acquiring the temperatures of the first passenger compartment and the second passenger compartment;
when the temperatures of the first passenger compartment and the second passenger compartment are higher than the second preset warming temperature, controlling the second three-way valve 202 to be opened, controlling the liquid heat exchange medium in the first pipeline 103 to enter the first air-conditioning box 1051 through the first pipeline 103, and controlling the liquid heat exchange medium to flow back to the second interface 102 through the second pipeline 104; the liquid heat exchange medium in the second pipeline 106 is controlled to enter the second air-conditioning box 1052 through the second pipeline 106 and flow back to the second interface 102. Specifically, the second predetermined warming temperature may be selected from a temperature generally used in the art, such as 35 ℃, when the passenger compartment is perceived by the average person to be hot. The present embodiment is similar to the control procedure in embodiment 4, and differs mainly in that the cooling of two passenger zones can be displayed simultaneously.
It should be noted that the first and second passenger compartments may be a main and a secondary driver's seat, or may be a main and a rear region, as long as they are two different regions.
As another way to cool down the first passenger compartment and the second passenger compartment, the present embodiment may also adopt a way in which the passenger directly controls the start, and at this time, the temperature of the passenger compartment may not be high, but the passenger starts cooling down the passenger compartment because of his own needs.
In this embodiment, the liquid heat exchange medium that completes heat exchange from the second air conditioning box flows back to the second interface through the fourth pipeline. The second and fourth conduits may also be combined to form a fifth conduit that is then transported to the second interface location.
Example 6
In the present embodiment, with the thermal management system in embodiment 3, there is provided a thermal management system control method for a vehicle.
This example was made on the basis of example 5, and is intended to provide different degrees of cooling patterns for the first and second passenger compartments: this mode is used to cool the passenger compartment in summer or other external warm-up conditions, when the battery is operating at low power and no heat is required to dissipate.
Specifically, the flow rate of the liquid heat exchange medium entering the first and second air- conditioning boxes 1051 and 1052 is controlled by adjusting the opening ratio of the first and second outlets of the second three-way valve 202.
When the flow rates of the first outlet and the second outlet of the second three-way valve 202 are both 50%, the first air-conditioning box 1051 and the second air-conditioning box 1052 can achieve the same cooling effect.
In this embodiment, the refrigeration of the two areas can be adjusted according to the different requirements of the passengers in the main driving seat and the assistant driving seat. The flow rates of the first outlet and the second outlet of the second three-way valve 202 are proportionally distributed, and if the flow rate of the first outlet is 10%, the flow rate corresponding to the second outlet is 90%, and at this time, the cooling effect of the second air-conditioning box 1052 corresponding to the second outlet is better.
Example 7
In the present embodiment, with the thermal management system in embodiment 3, there is provided a thermal management system control method for a vehicle.
As shown in fig. 5 and 6, provided in the present embodiment is a mode of cooling the battery thermal management circuit alone: the usage scenario in this mode is a situation where the battery is cooled when the passenger compartment is unoccupied. The charging condition can be a charging condition in a normal mode in a temperature rise or normal temperature season, and can also be a charging condition in a super charging condition of the battery. In either case, the control method may be employed whenever the battery temperature is too high and cooling is required. The method comprises the following steps:
acquiring the temperature of the battery;
specifically, a plurality of temperature sensors are arranged on the battery pack 501, and the temperature detected by the temperature sensors is sent to a controller of the vehicle in real time;
specifically, the temperature of the battery is about 25 to 45 ℃ when the automobile is charged, and when the temperature exceeds 45 ℃, the temperature of the battery is considered to be excessively high.
When the temperature of the battery is higher than the preset temperature rise temperature of the battery, controlling a second outlet of the first three-way valve 201 to be opened and a first outlet to be closed, so that the liquid heat exchange medium in the first pipeline is communicated with a battery thermal management loop through a fifteenth pipeline 701;
the first inlet of the fifth three-way valve 205 is controlled to be closed, the second inlet of the fifth three-way valve 205 is controlled to be opened, and the outlet of the fifth three-way valve 205 is controlled to be opened, so that the seventh pipeline 110 is communicated with the second pipeline 104. The liquid heat exchange medium flowing out through the sixth pipeline 109 is connected to the fifteenth pipeline 701, the second integration valve 600 is controlled, the liquid heat exchange medium in the sixth pipeline 109 is communicated with the battery thermal management loop through the fifteenth pipeline 701, and then the liquid heat exchange medium after the temperature reduction operation flows back to the inside of the integration valve through the fourth interface.
Through the above arrangement, the liquid heat exchange medium for cooling in the first flow path 406 is directly supplied to the fourth thermal management subsystem, and heat exchange with the battery pack 501 is completed through the fourth thermal management subsystem, so that the battery pack 501 is cooled separately.
Example 8
In the present embodiment, with the thermal management system in embodiment 3, there is provided a thermal management system control method for a vehicle.
As shown in fig. 7 and 8, provided in the present embodiment are modes of thermal management circuit of the battery and of synchronous cooling of the passenger compartment: the usage scenario of this mode is when the passenger compartment is sitting and the battery pack 501 is being overcharged, or when driving in a warm weather causes the temperature of the passenger compartment and the battery pack 501 to rise. In either case, the present control method may be employed as long as the battery temperature is excessively high and the passenger compartment temperature is excessively high. The method comprises the following steps:
acquiring the temperature of the battery and the temperature of the passenger compartment;
when the temperature of the battery is higher than the preset temperature rise temperature of the battery;
and the first passenger compartment temperature is greater than the first preset elevated temperature and/or the second passenger compartment temperature is greater than the second preset elevated temperature, such as a battery temperature greater than 45 c and a passenger compartment temperature greater than 30 c.
Controlling the first outlet and the second outlet of the first three-way valve 201 to be opened, and controlling the first outlet and/or the second outlet of the second three-way valve 202 to be opened, so that the liquid heat exchange medium in the first pipeline enters the first pipeline 103 and the sixth pipeline 109 respectively;
several different modes are possible at this time: cooling the first air conditioning box and the battery heat management loop; cooling the second air conditioning box and the battery heat management loop; and cooling the first air conditioning box, the second air conditioning box and the battery heat management loop.
Controlling the second integration valve 600 to enable the liquid heat exchange medium in the sixth pipeline 109 to be communicated with a fourth thermal management subsystem in the battery thermal management loop through a fifteenth pipeline 701;
controlling an inlet of the sixth three-way valve to be opened, a first outlet to be opened and a second outlet to be closed, so that a second pipeline (a fifth pipeline) is communicated;
the first inlet and the second inlet of the fifth three-way valve 205 are controlled to be opened, and the outlet of the fifth three-way valve 205 is controlled to be opened, so that the liquid heat exchange medium in the fifteenth pipeline 701 flows back to the second connector 102 through the fifth three-way valve 205.
Example 9
In the present embodiment, with the thermal management system in embodiment 3, there is provided a thermal management system control method for a vehicle.
This example is made on the basis of example 8, intended to provide different degrees of cooling patterns for the passenger compartment and the battery: provided in this embodiment is a mode of simultaneous cooling of the battery and the passenger compartment.
In this embodiment, the cooling of the two zones can be adjusted according to different temperature conditions of the passenger compartment and the battery pack 501. The flow rates of the first outlet and the second outlet of the first three-way valve 201 are proportionally distributed, and if the flow rate of the first outlet is 10%, the flow rate corresponding to the second outlet is 90%, and at this time, the cooling effect of the battery corresponding to the second outlet is better.
Example 10
In the present embodiment, with the thermal management system in embodiment 3, there is provided a thermal management system control method for a vehicle.
As shown in fig. 9 and 10, provided in the present embodiment is a mode of performing individual heating of the passenger compartment: the usage scenario of this mode is the situation that the passenger needs hot air and does not need to heat the battery pack 501 when the passenger cabin is seated, such as the situation that the passenger is separately provided with hot air in a parking state. The method comprises the following steps:
when the first passenger compartment temperature is lower than the first preset drop-off temperature, the first three-way valve 201 and/or the second three-way valve 202 are controlled to be closed, and at this time, the liquid heat exchange medium in the first flow path 406 cannot enter the integration valve;
the third three-way valve 203 is controlled to be opened, and the liquid heat exchange medium in the second flow path 407 enters the first air conditioning box 1051 through the eighth line 303 and flows back to the fourth port 302 through the ninth line 304. Specifically, the first predetermined temperature-reducing temperature may be 10 ℃.
It should be noted that: the first passenger compartment may be a primary driving position or a secondary driving position.
Example 11
The present embodiment is made based on the embodiment 10, and provides a control method of a thermal management system, compared with the embodiment 10, the main difference is that the present embodiment can perform heating operation to the first passenger compartment and the second passenger compartment at the same time, as shown in fig. 11 and 12, and includes the following steps:
acquiring the temperatures of the first passenger compartment and the second passenger compartment;
when the temperatures of the first passenger compartment and the second passenger compartment are lower than the second preset cool-down temperature, controlling the first outlet of the third three-way valve 203 to be opened, controlling the second outlet of the third three-way valve 203 to be closed, controlling the first outlet and the second outlet of the fourth three-way valve 204 to be opened, controlling the liquid heat exchange medium in the second flow path 407 to enter the first air-conditioning box 1051 through the eighth pipeline 303, and controlling the liquid heat exchange medium to flow back to the fourth interface 302 through the ninth pipeline 304; the liquid heat exchange medium in the second pipeline 106 is controlled to enter the second air-conditioning box 1052 through the tenth pipeline 305 and flows back to the fourth port 302.
Alternatively, the first and second air-conditioning boxes may be manually controlled to be activated when the temperature in the vehicle is not high enough to reach a place where the normal person feels cold, but the passengers in the passenger compartment may be manually controlled to be activated for specific requirements.
Example 12
Provided in this embodiment are modes of simultaneous heating of the battery and of the passenger compartment: the usage scenario of this mode is the situation that when a passenger sits in the passenger cabin in a cooling state, the battery pack 501 and the passenger need to be heated at the same time, and the battery pack 501 is heated by the fourth thermal management subsystem, so that the cruising ability of the battery pack 501 itself can be improved, as shown in fig. 13 and 14, the method includes the following steps:
acquiring the temperature of a space where the air-conditioning box is located, wherein in the embodiment, the space where the air-conditioning box is located can be the temperature of the first passenger compartment and/or the second passenger compartment;
acquiring the temperature of the battery;
when the temperature of the battery is lower than the preset cooling temperature of the battery; and is
When the temperature of the first passenger compartment and/or the second passenger compartment is lower than the second preset cooling temperature, the first three-way valve 201 and/or the second three-way valve 202 is controlled to be closed, and the liquid heat exchange medium in the first flow path 406 cannot enter the interior of the integration valve;
controlling the first outlet and the second outlet of the third three-way valve 203 to be opened, controlling the first outlet and the second outlet of the fourth three-way valve 204 to be opened, controlling the liquid heat exchange medium in the second flow path 407 to enter the first air conditioning box 1051 through the eighth pipeline 303, and returning to the fourth interface 302 through the ninth pipeline 304; and/or controls the liquid heat exchange medium in the second pipeline 106 to enter the second air-conditioning box 1052 through the tenth pipeline 305 and flow back to the fourth port 302;
controlling the liquid heat exchange medium to enter a fourth thermal management subsystem of the battery thermal management loop.
Specifically, the liquid heat exchange medium enters the thirteenth pipeline 308 through the second outlet of the third three-way valve 203, and further flows to the sixteenth pipeline 702, and then enters the interior of the second integration valve 600, and controls the second integration valve 600, and the sixteenth pipeline 702 is connected in series with the battery thermal management circuit.
Example 13
The present embodiment is made on the basis of embodiment 12, and the main difference from embodiment 12 can provide different heating effects for the passenger compartment and the battery, including the following steps:
and controlling the opening ratio of the first outlet and the second outlet of the third three-way valve 203, and controlling the flow of the liquid heat exchange medium entering the fourth heat management subsystem of the battery heat management loop and the air conditioning box 105.
If the flow rate of the first outlet is controlled to be 40% and the flow rate of the second outlet is controlled to be 60%, more heat can be obtained by the battery thermal management loop.
Example 14
In the present embodiment, with the thermal management system in embodiment 3, there is provided a thermal management system control method for a vehicle.
The heating mode provided in the present embodiment is made on the basis of embodiments 12 and 13: when the ambient temperature of the vehicle or the temperature of the liquid heat exchange medium in the first flow path 406 is too low, the present mode is adopted for heating. In the present embodiment, the auxiliary heater module 411 is provided in the second flow path 407, and as shown in fig. 16 and 17, the method includes the steps of:
acquiring the outdoor environment temperature of the automobile;
when the outdoor environment temperature is lower than minus 10 ℃, the auxiliary heating module 411 is controlled to start;
controlling the first outlet and the second outlet of the third three-way valve 203 to be opened, controlling the first outlet and the second outlet of the fourth three-way valve 204 to be opened, controlling the liquid heat exchange medium in the second flow path 407 to enter the first air conditioning box 1051 through the eighth pipeline 303, and returning to the fourth interface 302 through the ninth pipeline 304; and/or controlling the liquid heat exchange medium in the second pipeline 106 to enter the second air-conditioning box 1052 through the tenth pipeline 305 and flow back to the fourth interface 302;
controlling the second integration valve 600 to communicate the twelfth pipe 307, the battery thermal management loop and the thirteenth pipe 308;
the second outlet of the third three-way valve 203 is controlled to be opened, so that the liquid heat exchange medium flows into the fifth thermal management subsystem of the thermal management circuit of the electric motor through the twelfth pipeline 307, heat exchange between the fifth thermal management subsystem and the electric motor is completed, the stop valve 208 is controlled to be opened, and the liquid heat exchange medium flowing back through the thermal management circuit of the electric motor flows back to the fourth interface 302 through the thirteenth pipeline 308.
Example 15
In the present embodiment, with the thermal management system in embodiment 3, there is provided a thermal management system control method for a vehicle.
The heating mode provided in the embodiment is made on the basis of the embodiments 12 and 13: in order to perform a heating operation for the passenger compartment and the battery thermal management circuit when the temperature of the environment where the vehicle is located is lower than 0 ℃, a gas-liquid separator 412 is disposed on the first heat exchange medium circulation line between the compressor 401 and the expansion valve 404, one end of a hot gas bypass line is disposed between the compressor 401 and the expansion valve 404, and the other end of the hot gas bypass line acts on the gas-liquid separator 412, and a bypass expansion valve 410 is disposed on the hot gas bypass line, as shown in fig. 17 and 18, including the steps of:
acquiring the outdoor environment temperature of the automobile;
when the outdoor environment temperature is-20 ℃,0 ℃, controlling the bypass expansion valve 410 on the hot gas bypass pipeline to open;
controlling the first outlet of the third three-way valve 203, the first outlet and the second outlet of the fourth three-way valve 204 to be opened, and controlling the liquid heat exchange medium in the second flow path 407 to enter the first air conditioning box 1051 through the eighth line 303, and to flow back to the fourth port 302 through the ninth line 304; and/or controls the liquid heat exchange medium in the second pipeline 106 to enter the second air-conditioning box 1052 through the tenth pipeline 305 and flow back to the fourth port 302;
controlling the second integration valve 600 to communicate the twelfth pipe 307, the battery thermal management loop and the thirteenth pipe 308;
the second outlet of the third three-way valve 203 is controlled to be opened, so that the liquid heat exchange medium flows into the motor thermal management loop through a twelfth pipeline 307, and the stop valve 208 is controlled to be opened, so that the liquid heat exchange medium flowing back through the battery thermal management loop flows back to the fourth interface 302 through a thirteenth pipeline 308.
Specifically, the hot gas bypass may be used in a heating environment with an ambient temperature lower than 0 ℃ and higher than-20 ℃, and the bypass expansion valve 410 operates as the air compensation expansion valve 404 to ensure a low pressure, for example, when the refrigerant is R134A and the high pressure is 16BarA, the heat exchanger water path is heated to provide 60 ℃ outlet air for the passenger compartment and the battery pack 501, and the refrigerant pressure low pressure is controlled to be 4BarA.
Example 16
In the present embodiment, with the thermal management system in embodiment 3, there is provided a thermal management system control method for a vehicle.
The modes provided in this embodiment are: while heating the passenger compartment, collecting the heat of the motor by a fifth thermal management subsystem, and then heating the battery, thereby effectively utilizing the heat of the motor, as shown in fig. 19 and 20, the control steps are as follows:
acquiring the outdoor environment temperature of the automobile;
when the outdoor ambient temperature is [0 ℃,18 ℃) ], controlling the first outlet of the third three-way valve 203 to be opened, controlling the first outlet and the second outlet of the fourth three-way valve 204 to be opened, controlling the liquid heat exchange medium in the second flow path 407 to enter the first air-conditioning box 1051 through the eighth pipeline 303, and controlling the liquid heat exchange medium to flow back to the fourth interface 302 through the ninth pipeline 304; and/or controls the liquid heat exchange medium in the tenth pipeline to enter the second air-conditioning box 1052 through the tenth pipeline 305 and flow back to the fourth port 302;
it should be noted that the eighth line and the tenth line may be combined into one line.
The second integration valve 600 is controlled to connect the battery thermal management loop and the motor thermal management loop in series. By connecting in series, heat in the electric machine thermal management circuit can be transferred to the battery thermal management circuit. Specifically, a fifth thermal management subsystem in the thermal management loop of the motor absorbs heat generated by the motor, then the heat is further transferred to a liquid heat exchange medium, and further enters a fourth thermal management subsystem, and heat exchange between the fourth thermal management subsystem and the battery is completed, so that heat of the motor is transferred to the battery.
Further, the control method provided in this embodiment further includes:
communicating the radiator 503 circuit with the seventh pipe 110 and the sixth pipe 109;
controlling the first outlet of the first three-way valve 201 to be opened and the second outlet to be closed, so that the liquid heat exchange medium in the first flow path 406 enters the sixth pipeline 109;
the sixth three-way valve 206 is controlled to communicate the seventh line 110 with the second port 102.
The working condition that the scene external temperature is above 0 ℃ and below 18 ℃ and needs heating is used, the EXV1 evaporation pressure is reduced to 2BarA, and the water in the water channel is gradually reduced to minus 10 ℃. The temperature of the cooling radiator 503 can absorb heat from the environment through the temperature difference of 10-38 ℃. Insufficient calories may be supplemented by HVH.
Example 17
In the present embodiment, with the thermal management system in embodiment 3, there is provided a thermal management system control method for a vehicle.
The modes provided in this embodiment are: the temperatures of the first and second air- conditioning boxes 1051 and 1052 are adjusted so that there is a certain difference in the temperatures of the first and second air- conditioning boxes 1051 and 1052. For example, the temperature of the main driver seat is adjusted to 26 ℃, and the temperature of the subsidiary driver seat is adjusted to 20 ℃. The method comprises the following steps:
controlling a first outlet of the first three-way valve 201 to be opened and a second outlet to be closed;
through the arrangement mode, the liquid heat exchange medium flows only to the air conditioning box 105 part, and does not flow out to the battery backflow;
controlling the first outlet and the second outlet of the second three-way valve 202 to be opened, so that the liquid heat exchange medium enters the first air-conditioning box 1051 and the second air-conditioning box 1052 through the first pipeline 103 and the third pipeline 106 respectively, and flows back to the second interface 102 through the second pipeline 104;
through the above steps, the operation of introducing the liquid heat exchange medium into the first air-conditioning box 1051 and the second air-conditioning box 1052 is completed.
A first outlet of the third three-way valve 203 is controlled to be opened, a second outlet of the third three-way valve 203 is controlled to be closed, and at least one of a first outlet and a second outlet of the fourth three-way valve 204 is controlled to be opened, so that the liquid heat exchange medium enters at least one of the eighth pipeline 303 or the tenth pipeline 305.
Through the above steps, the liquid heat exchange medium is introduced into at least one of the first air-conditioning box 1051 and the second air-conditioning box 1052, so that the doping of the liquid heat exchange medium with different temperatures is completed in the first air-conditioning box 1051 and the second air-conditioning box 1052, thereby achieving the difference of the temperatures of the core mechanisms in the first air-conditioning box 1051 and the second air-conditioning box 1052.
Further, when the first outlet and the second outlet of the fourth three-way valve 204 are simultaneously opened, the opening degrees of the first outlet and the second outlet of the fourth three-way valve 204 are controlled to adjust the flow rates of the liquid heat exchange medium entering the eighth pipeline 303 and the tenth pipeline 305. So that the temperatures of the first and second air- conditioning boxes 1051 and 1052 can be further adjusted, for example, when the temperature of the first air-conditioning box 1051 is required to be higher than that of the second air-conditioning box 1052, the opening degree of the first outlet of the fourth three-way valve 204 is controlled to be larger than that of the second outlet, so that more liquid heat exchange medium enters the first air-conditioning box 1051.
Further, the second outlet of the third three-way valve 203 is controlled to be opened, the shutoff valve 208 is controlled to be opened, the opening degrees of the first outlet and the second outlet of the third three-way valve 203 are controlled, and the flow rates of the liquid heat exchange medium entering the twelfth pipe 307 and the eighth pipe 303 are adjusted. By controlling the second outlet of the third three-way valve 203 and the opening of the stop valve 208, a part of the liquid heat exchange medium enters the twelfth pipeline 307 and flows out of the integration valve, and by the above manner, the flow rate of the liquid heat exchange medium entering the eighth pipeline 303 can be adjusted, so as to realize the temperature adjustment action.
Still further, the control method further includes: the sixth three-way valve 206 is controlled to be communicated with the fourteenth pipeline 309, and the opening degree of the second outlet of the sixth three-way valve 206 is adjusted, so as to adjust the flow rate of the overflowed liquid into the thirteenth pipeline 308. With the above arrangement, a part of the liquid heat exchange medium flowing out of the air-conditioning box 105 does not have to be returned to the first flow path 406 for cooling, but flows to the second flow path 407 for warming, thereby ensuring that the temperature of the liquid heat exchange medium flowing into the first air-conditioning box 1051 and the second air-conditioning box 1052 is normal.
Example 18
The present embodiment provides an air conditioning box, as shown in fig. 22, adapted to be connected to the integration valve of embodiment 1, including:
the liquid heat exchange medium heat exchange part is suitable for being communicated with the fifth interface and the sixth interface of the integrated valve, and the liquid heat exchange medium heat exchange part is suitable for being introduced into the liquid heat exchange medium heat exchange part;
specifically, a liquid heat exchange medium such as water or freon may be used in the liquid heat exchange medium heat exchange unit. In this embodiment, water is preferably used as the heat exchange liquid heat exchange medium.
The liquid heat exchange medium heat exchange part is communicated with the air inlet and the air outlet respectively;
and the air supply equipment is used for acting on the air inlet and/or the air outlet. Specifically, the air supply device can be placed at the air inlet position, the air outlet position, the air inlet and the air outlet position at the same time, as long as the air can be driven.
Example 19
The embodiment provides a vehicle, which adopts the integrated valve provided in embodiment 1, or the thermal management module provided in embodiment 2, or the thermal management system provided in embodiment 3, or the air conditioning box provided in embodiment 4, or executes the control method of the thermal management systems in embodiments 4 to 17. In the embodiment, the vehicle can be a pure electric vehicle or a hybrid electric vehicle.
In this embodiment, as for the power source of the compressor, a battery pack built in the battery thermal management system may be used, or an external generator or even an internal combustion engine may be used, as long as the driving action of the compressor can be completed.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (45)

1. An integrated valve adapted to control a liquid heat exchange medium in a thermal management system, the thermal management system including a first thermal management subsystem and a second thermal management subsystem, the first thermal management subsystem including a heat sink assembly and a heat sink assembly, comprising:
a first interface (101) and a second interface (102), said first interface (101) and said second interface (102) being adapted to have connected therebetween a first heat exchange member coupled in heat exchange with said heat dissipation assembly;
-a third interface (301) and a fourth interface (302), said third interface (301) and said fourth interface (302) being adapted to have connected therebetween a second heat exchange assembly coupled in heat exchange with said heat absorption assembly;
a fifth interface (111) and a sixth interface (112), the fifth interface (111) and the sixth interface (112) for connecting the second thermal management subsystem therebetween;
at least one valve is arranged between the first port (101) and the fifth port (111) and at least one valve is arranged between the second port (102) and the sixth port (112) in the integrated valve (100).
2. The integrated valve of claim 1, further comprising:
a first conduit (103) communicating with said first port (101) and said fifth port (111);
a second conduit (104) in communication with the sixth port (112) and the second port (102).
3. The integrated valve of claim 2, further comprising:
an eleventh interface and a twelfth interface, the fifth interface (111) and the sixth interface (112) for connecting a third thermal management subsystem therebetween, the eleventh interface in communication with the first interface (101), the twelfth interface in communication with the second interface (102);
a third line (106) communicating with the first port (101) and the eleventh port;
a fourth conduit (107) in communication with the second port (102) and the twelfth port.
4. The integrated valve of claim 3, further comprising:
a second three-way valve (202) disposed on the first line (103), the second three-way valve (202) having a first outlet and a second outlet, the first outlet being in communication with the fifth port (111);
a third pipeline (106) is arranged on the second outlet, and the third pipeline (106) is suitable for being communicated with the eleventh interface.
5. An integrated valve according to claim 4, characterized in that the second (104) and fourth (107) lines merge to form a fifth line (108); the sixth interface (112) and the twelfth interface are combined into a backflow interface, and the backflow interface is communicated with the fifth pipeline (108).
6. The integrated valve of claim 5, further comprising
A seventh port (113) in communication with the first port (101);
an eighth port (114) in communication with said second port (102), said seventh port (113) and said eighth port (114) being adapted to connect therebetween a third heat exchange member in heat exchange coupling with a battery.
7. The integrated valve of claim 6, further comprising:
a first three-way valve (201) arranged on the first pipeline (103) and between the second three-way valve (202) and the first connection (101), the first three-way valve (201) being provided with a first outlet and a second outlet, the first outlet of the first three-way valve (201) being connected to the inlet of the second three-way valve (202), the second outlet being adapted to communicate with a sixth pipeline (109), the sixth pipeline (109) being connected to the seventh connection (113);
and one end of the seventh pipeline (110) is connected with the eighth interface (114), and the other end of the seventh pipeline is communicated with the second interface (102).
8. The integrated valve of claim 7, further comprising:
a fifth three-way valve (205) disposed on the fifth line (108), the fifth three-way valve (205) having a first inlet, a second inlet, and an outlet, the first inlet of the fifth three-way valve (205) being connected to the sixth connection (112), the second inlet of the fifth three-way valve (205) being connected to the eighth connection (114), the outlet of the fifth three-way valve (205) being connected to the second connection (102).
9. The integrated valve of claim 8, further comprising:
and the two ends of the one-way stop valve (207) are simultaneously connected with the sixth pipeline (109) and the seventh pipeline (110) and are suitable for controlling the liquid heat exchange medium to flow from the seventh pipeline (110) to the sixth pipeline (109).
10. The integrated valve according to claim 8, wherein an eighth pipeline (303) is arranged on the fourth port (302), and the eighth pipeline (303) is communicated with the fifth port (111);
and one end of the ninth pipeline (304) is communicated with the sixth interface (112), and the other end of the ninth pipeline is communicated with the fourth interface (302).
11. The integrated valve of claim 10, further comprising:
a fourth three-way valve (204) disposed on the eighth pipeline (303), the fourth three-way valve (204) including a first outlet and a second outlet, the eighth pipeline (303) being disposed on the first outlet of the fourth three-way valve (204);
a tenth pipeline (305) is communicated with a second outlet of the fourth three-way valve (204), and one end of the tenth pipeline (305) is suitable for being communicated with the eleventh interface;
and one end of the eleventh pipeline (306) is communicated with the twelfth interface, and the other end of the eleventh pipeline is communicated with the fourth interface (302).
12. The integrated valve of claim 11, wherein the ninth line (304) and the eleventh line (306) merge into a warming medium return line, the warming medium return line being connected to the return connection.
13. An integrated valve according to claim 12, characterized in that the fifth line (108) and the warming medium return line merge to form a medium return line.
14. The integrated valve of any of claims 11-13, further comprising:
a ninth port (310) communicated with the third port (301), wherein a twelfth pipeline (307) is arranged between the third port (301) and the ninth port (310);
a tenth interface (311) communicated with the ninth interface (310), a thirteenth pipeline (308) is arranged between the tenth interface (311) and the fourth interface (302), and a fourth heat exchange component in heat exchange coupling with the motor is connected between the ninth interface (310) and the tenth interface (311) in a suitable manner.
15. The integrated valve of claim 14, further comprising:
a third three-way valve (203) disposed on the eighth line (303) and located between the fourth three-way valve (204) and the third interface (301), the third three-way valve (203) including a first outlet and a second outlet, the first outlet of the third three-way valve (203) being in communication with the fourth three-way valve (204), the second outlet of the third three-way valve (203) being provided with the twelfth line (307).
16. The integration valve according to claim 15, wherein the ninth line (304) and the eleventh line (306) converge on the fifth line (108), a sixth three-way valve (206) is disposed on the fifth line (108), the sixth three-way valve (206) comprises a first outlet and a second outlet, the first outlet of the sixth three-way valve (206) communicates with the second port (102), and the second outlet of the sixth three-way valve (206) communicates with the fourth port (302).
17. An integrated valve according to claim 16, characterised in that a fourteenth line (309) communicates between the second outlet of the sixth three-way valve (206) and the thirteenth line (308);
the integrated valve (100) further comprises:
and the stop valve (208) is arranged on the thirteenth pipeline (308) and is suitable for controlling the on-off of the thirteenth pipeline (308).
18. An air conditioning cabinet, adapted to be connected to an integrated valve (100) according to any one of claims 1 to 17, comprising:
the liquid heat exchange medium heat exchange part is suitable for being communicated with the fifth interface (111) and the sixth interface (112) of the integrated valve (100), and the liquid heat exchange medium heat exchange part is suitable for being introduced into the liquid heat exchange medium heat exchange part;
the liquid heat exchange medium heat exchange part is communicated with the air inlet and the air outlet respectively;
and the air supply equipment is used for acting on the air inlet and/or the air outlet.
19. A thermal management module for a vehicle, comprising:
the heat exchanger comprises a first heat exchange medium circulation pipeline and a second heat exchange medium circulation pipeline, wherein the first heat exchange medium circulation pipeline comprises a compressor (401), an evaporator (402), a condenser (403) and an expansion valve (404) which are connected in series, and a first circulation pump (405) is arranged on the first heat exchange medium circulation pipeline;
a second heat exchange medium circulation circuit including a first flow path (406) provided at a position of the evaporator (402), the evaporator (402) performing a temperature reduction operation on the liquid heat exchange medium in the first flow path (406);
and/or the presence of a gas in the atmosphere,
a second flow path (407) arranged at the position of the condenser (403), wherein the condenser (403) is suitable for heating the liquid heat exchange medium in the second flow path (407), and a second circulating pump (408) is arranged on the second heat exchange medium circulating path;
a first integration valve (100) employing the integration valve (100) of claim 17.
20. A thermal management module according to claim 19, characterized in that a gas-liquid separator (412) is arranged on the first heat exchange medium circulation line between the compressor (401) and the expansion valve (404), that a hot gas bypass line is arranged with one end between the compressor (401) and the expansion valve (404) and with the other end acting on the gas-liquid separator (412), and that a bypass expansion valve (410) is arranged on the hot gas bypass line.
21. A thermal management module according to claim 20, characterized in that an auxiliary heating module (411) is provided on the second flow path (407), said auxiliary heating module (411) being adapted to be activated when the ambient temperature of use and/or the liquid heat exchange medium is lower than a preset temperature.
22. A heat management module according to claim 19, characterized in that a first plate heat exchanger is arranged in the first pipe (103) in correspondence with the evaporator (402); and/or a second plate heat exchanger is arranged on the part, corresponding to the condenser (403), of the second pipeline (104).
23. A thermal management system for a vehicle, comprising:
the thermal management module of any of claims 19-22;
the air conditioning box (105) of claim 18, the fifth interface (111) and the sixth interface (112) of the integration valve (100) of the heat circuit module being connected with the air conditioning box (105); and/or is connected with an eleventh interface and a twelfth interface of the integrated valve (100);
a second integration valve (600) provided with a plurality of interfaces;
the battery thermal management loop, the motor thermal management loop and the radiator (503) loop are respectively arranged on an interface of the second integrated valve (600), the radiator (503) loop is provided with the radiator (503), and the battery thermal management loop, the motor thermal management loop and the radiator (503) loop are independently conducted or conducted in series through the second integrated valve (600);
a fifteenth line (701) communicating with the seventh port (113) and the eighth port (114);
a sixteenth pipeline (702) communicated with the ninth port (310) and the tenth port (311), wherein the fifteenth pipeline (701) and the sixteenth pipeline (702) are both connected with the second integration valve (600).
24. The thermal management system of claim 23, further comprising a heat sink fan (504) disposed in correspondence with the heat sink (503).
25. The thermal management system of claim 24, wherein the second integration valve (600) is an eight-way valve.
26. A thermal management system control method for a vehicle, characterized in that the thermal management system according to any one of claims 23 to 25 is adopted, wherein the number of the air-conditioning boxes (105) is two, comprising the steps of:
controlling a first outlet of the first three-way valve (201) to be opened and controlling a second outlet of the first three-way valve (201) to be closed;
controlling the liquid heat exchange medium in the first flow path (406) to enter a group of air conditioning boxes (105) through a first pipeline (103) and flow back to the second interface (102) through a second pipeline (104);
controlling the liquid heat exchange medium in the third pipeline (106) to enter the second air conditioning box (1052) through the third pipeline (106) and flow back to the second interface (102).
27. The thermal management system control method of claim 26, further comprising: and adjusting the opening ratio of a first outlet and a second outlet of the second three-way valve (202) to control the flow entering the two groups of air-conditioning boxes (105).
28. The thermal management system control method according to claim 27, characterized in that the second outlet of the second three-way valve (202) is controlled to be closed.
29. A thermal management system control method for a vehicle, characterized in that the thermal management system according to any one of claims 23 to 25 is adopted, wherein the integration valve (100) is the integration valve (100) according to claim 6, and the method comprises the steps of:
acquiring the temperature of the battery;
when the temperature of the battery is higher than the preset temperature rise temperature of the battery, controlling a second outlet of the first three-way valve (201) to be opened, and closing a first outlet;
controlling the second integration valve (600) to enable the liquid heat exchange medium in the sixth pipeline (109) to be communicated with the battery thermal management loop through a fifteenth pipeline (701);
and controlling a first inlet of the fifth three-way valve (205) to be closed, controlling a second inlet of the fifth three-way valve (205) to be opened, and controlling an outlet of the fifth three-way valve (205) to be opened, so that the seventh pipeline (110) is communicated with the second pipeline (104).
30. A thermal management system control method for a vehicle, characterized by employing the thermal management system of any one of claims 23 to 25, wherein the integration valve (100) is the integration valve (100) of claim 8, comprising the steps of:
acquiring the temperature of a space where a battery and an air conditioning box (105) are located;
when the temperature of the battery is higher than the preset temperature rise temperature of the battery;
when the temperature of the space where the air-conditioning box (105) is located is higher than a preset temperature rise temperature, controlling a first outlet and a second outlet of the first three-way valve (201) to be opened, and controlling a first outlet and a second outlet of the second three-way valve (202) to be opened, so that liquid heat exchange media in the first pipeline (103) enter a first pipeline (103) and a sixth pipeline (109) respectively;
controlling the second integration valve (600) to enable the liquid heat exchange medium in the sixth pipeline (109) to be communicated with the battery thermal management loop through a fifteenth pipeline (701);
and controlling the first inlet and the second inlet of the fifth three-way valve (205) to be opened, and controlling the outlet of the fifth three-way valve (205) to be opened, so that the liquid heat exchange medium in the fifteenth pipeline (701) flows back to the second interface (102) through the fifth three-way valve (205).
31. The thermal management system control method according to claim 30, wherein the opening ratio of the first outlet and the second outlet of the first three-way valve (201) is controlled to control the flow rate of the liquid heat exchange medium entering the battery thermal management circuit and the air conditioning box (105).
32. A thermal management system control method for a vehicle, characterized in that the thermal management system according to any one of claims 23 to 25 is adopted, wherein the integration valve (100) is the integration valve (100) according to claim 15, comprising the steps of:
controlling the first three-way valve (201) and/or the second three-way valve (202) to be closed;
controlling a first outlet of the third three-way valve (203) to be opened, controlling a second outlet of the third three-way valve (203) to be closed, controlling a first outlet and a second outlet of a fourth three-way valve (204) to be opened, controlling the liquid heat exchange medium in the second flow path (407) to enter one air conditioning box (105) through an eighth pipeline (303), and returning to a fourth interface (302) through the ninth pipeline (304); controlling the liquid heat exchange medium in the tenth pipeline (305) to enter the second air conditioning box (1052) and flow back to the fourth interface (302).
33. A method according to claim 32, for controlling a thermal management system according to any of claims 23-25, wherein the integration valve (100) is an integration valve (100) according to claim 17, comprising the steps of:
controlling the first three-way valve (201) and/or the second three-way valve (202) to be closed;
controlling a first outlet of the third three-way valve (203) to be opened, controlling a second outlet of the third three-way valve (203) to be closed, controlling a first outlet and a second outlet of a fourth three-way valve (204) to be opened, controlling the liquid heat exchange medium in the second flow path (407) to enter one air conditioning box (105) through an eighth pipeline (303), and returning to a fourth interface (302) through the ninth pipeline (304); controlling the liquid heat exchange medium in the tenth pipeline (305) to enter the second air conditioning box (1052) and flow back to the fourth interface (302);
controlling the second outlet of the sixth three-way valve (206) to be opened, controlling the first outlet of the sixth three-way valve (206) to be closed, and controlling the stop valve (208) to be closed.
34. The thermal management system control method of claim 33, further comprising: and controlling the opening ratio of the first outlet and the second outlet of the fourth three-way valve (204) to control the flow rate entering the two air-conditioning boxes (105).
35. A thermal management system control method for a vehicle, characterized in that the thermal management system according to any one of claims 23 to 25 is adopted, wherein the integration valve (100) is the integration valve (100) according to claim 15, comprising the steps of:
controlling the first three-way valve (201) and/or the second three-way valve (202) to be closed;
controlling the first outlet and the second outlet of the third three-way valve (203) to be opened, controlling the first outlet and the second outlet of the fourth three-way valve (204) to be opened, controlling the liquid heat exchange medium in the second flow path (407) to enter one of the air conditioning boxes (105) through an eighth pipeline (303), and returning to the fourth interface (302) through the ninth pipeline (304); controlling the liquid heat exchange medium in the tenth pipeline (305) to enter the second air conditioning box (1052) and flow back to the fourth interface (302);
and controlling the second outlet of the third three-way valve (203) to be opened, so that the liquid heat exchange medium enters a twelfth pipeline (307) and enters the battery thermal management loop through a sixteenth pipeline (702), and controlling the stop valve (208) to be opened, so that the liquid heat exchange medium returning through the battery thermal management loop returns to the fourth interface (302) through the thirteenth pipeline (308).
36. The thermal management system control method of claim 35, wherein controlling the opening ratio of the first outlet and the second outlet of the third three-way valve (203) controls the flow of the liquid heat exchange medium to the battery thermal management circuit and the air conditioning box (105).
37. A thermal management system control method for a vehicle, characterized in that the thermal management system according to any one of claims 23 to 25 is adopted, wherein the integrated valve (100) is the integrated valve (100) according to claim 17, and an auxiliary heating module (411) is provided on the second flow path (407), and the method comprises the following steps:
acquiring the outdoor environment temperature of the automobile;
when the outdoor environment temperature is lower than-10 ℃, controlling the auxiliary heating module (411) to start;
controlling the first outlet and the second outlet of the third three-way valve (203) to be opened, controlling the first outlet and the second outlet of the fourth three-way valve (204) to be opened, controlling the liquid heat exchange medium in the second flow path (407) to enter one of the air conditioning boxes (105) through an eighth pipeline (303), and returning to the fourth interface (302) through the ninth pipeline (304); controlling the liquid heat exchange medium in the tenth pipeline (305) to enter the second air conditioning box (1052) and flow back to the fourth interface (302);
and controlling a second outlet of the third three-way valve (203) to be opened, enabling the liquid heat exchange medium to enter a twelfth pipeline (307) and enter a battery thermal management loop through a sixteenth pipeline (702), and controlling the stop valve (208) to be opened, and enabling the liquid heat exchange medium returning through the battery thermal management loop to return to a fourth interface (302) through a thirteenth pipeline (308).
38. A method for controlling a thermal management system for a vehicle, wherein the thermal management system according to any one of claims 23 to 25 is adopted, wherein the integrated valve (100) is the integrated valve (100) according to claim 17, a gas-liquid separator (412) is disposed on the first heat exchange medium circulation line between the compressor (401) and the expansion valve (404), a hot gas bypass line is disposed between the compressor (401) and the expansion valve (404) at one end, the other end acts on the gas-liquid separator (412), and a bypass expansion valve (410) is disposed on the hot gas bypass line, comprising the steps of:
acquiring the outdoor environment temperature of the automobile;
when the outdoor environment temperature is between minus 20 ℃ and 0 ℃, controlling a bypass expansion valve (410) on a hot gas bypass pipeline to be opened;
controlling the first outlet and the second outlet of the third three-way valve (203) to be opened, controlling the first outlet and the second outlet of the fourth three-way valve (204) to be opened, controlling the liquid heat exchange medium in the second flow path (407) to enter one of the air conditioning boxes (105) through an eighth pipeline (303), and returning to the fourth interface (302) through the ninth pipeline (304); controlling the liquid heat exchange medium in the tenth pipeline (305) to enter the second air conditioning box (1052) and flow back to the fourth interface (302);
and controlling a second outlet of the third three-way valve (203) to be opened, enabling the liquid heat exchange medium to enter a twelfth pipeline (307) and enter a battery thermal management loop through a sixteenth pipeline (702), and controlling the stop valve (208) to be opened, and enabling the liquid heat exchange medium returning through the battery thermal management loop to return to a fourth interface (302) through a thirteenth pipeline (308).
39. The thermal management system control method of claim 38, comprising the steps of:
acquiring the outdoor environment temperature of the automobile;
when the outdoor environment temperature is [0 ℃,18 ℃), controlling the first outlet and the second outlet of the third three-way valve (203) to be opened, controlling the first outlet and the second outlet of the fourth three-way valve (204) to be opened, and controlling the liquid heat exchange medium in the second flow path (407) to enter one of the air-conditioning boxes (105) through the eighth pipeline (303) and flow back to the fourth interface (302) through the ninth pipeline (304); controlling the liquid heat exchange medium in the tenth pipeline (305) to enter the second air conditioning box (1052) and flow back to the fourth interface (302);
controlling the second integration valve (600) to connect the battery thermal management circuit and the motor thermal management circuit in series.
40. The thermal management system control method of claim 37, further comprising:
-putting the radiator (503) circuit in communication with the fifteenth duct (701) and with the sixth duct (109);
controlling a first outlet of the first three-way valve (201) to be closed and a second outlet of the first three-way valve to be opened, so that liquid heat exchange medium enters the sixth pipeline (109);
controlling the sixth three-way valve (206) to be closed, and controlling a second inlet and an outlet of the fifth three-way valve (205) to be opened, so that the seventh pipeline (110) is communicated with the second port (102) through the fifth three-way valve (205).
41. A thermal management system control method for a vehicle, characterized by employing the thermal management system according to any one of claims 23 to 25, comprising the steps of:
controlling a first outlet of the first three-way valve (201) to be opened and a second outlet to be closed;
controlling a first outlet and a second outlet of the second three-way valve (202) to be opened, so that liquid heat exchange media enter the two air conditioning boxes (105) through a first pipeline (103) and a third pipeline (106) respectively and flow back to the second interface (102) through the first return pipeline;
controlling a first outlet of the third three-way valve (203) to be open, controlling a second outlet of the third three-way valve (203) to be closed, and controlling at least one of a first outlet and a second outlet of the fourth three-way valve (204) to be open, so that a liquid heat exchange medium is introduced into at least one of the eighth pipeline (303) or the tenth pipeline (305).
42. A method according to claim 41, characterized by controlling the opening of the first and second outlets of the fourth three-way valve (204) to adjust the flow of liquid heat exchange medium into the eighth line (303) and the tenth line (305).
43. A method according to claim 41 or 42, characterized by controlling the opening of the second outlet of the third three-way valve (203), controlling the opening of a shut-off valve (208), controlling the opening of the first and second outlets of the third three-way valve (203), and adjusting the flow of the liquid heat exchange medium into the twelfth line (307) and into the eighth line (303).
44. A method according to claim 43, characterized by controlling the sixth three-way valve (206) to conduct with a fourteenth line (309), adjusting the opening of the second outlet of the sixth three-way valve (206), adjusting the flow through to the thirteenth line (308).
45. A vehicle, characterized in that an integration valve (100) according to any of claims 1-17, or an air conditioning box (105) according to claim 18, or a thermal management module according to any of claims 19-21, or a thermal management system according to any of claims 23-25, or a method of controlling a thermal management system according to any of claims 26-44 is used.
CN202310046657.0A 2023-01-13 2023-01-13 Integrated valve, air conditioning box, thermal management module, system, control method of system and vehicle Pending CN115923450A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2035624A (en) * 2023-07-10 2023-09-01 Jiangxi Xindian Automobile Climate System Co Ltd An integrated thermal pump air conditioning and thermal management system, and its control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2035624A (en) * 2023-07-10 2023-09-01 Jiangxi Xindian Automobile Climate System Co Ltd An integrated thermal pump air conditioning and thermal management system, and its control method

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