Valve body integration module, thermal management system and vehicle

Abstract

The invention discloses a valve body integration module, a thermal management system and a vehicle. The valve body integration module comprises a substrate and a plurality of electronic expansion valves; the multiple electronic expansion valves are arranged on the top of the base plate, and the axial directions of the multiple electronic expansion valves are perpendicular to the base plate. The electronic expansion valve is perpendicular to the base plate, the layout is uniform, manufacturing is convenient, the structure of the valve body integration module is simplified, connection with a pipeline is convenient, and installation and fixation in a vehicle are convenient.

Description

Technical Field

[0001] The present invention generally relates to the field of heat pump technology, and more particularly to a valve body integrated module, a thermal management system and a vehicle. Background Art

[0002] In the air-conditioning thermal management system of new energy vehicles, the most energy-saving system is the heat pump system. Heat pump technology is widely used in electric vehicles. The heat pump system usually includes compressors, condensers, evaporators, gas-liquid separators and other main components. The cooling mode or heating mode is achieved by changing the flow path or direction of the refrigerant.

[0003] However, the existing heat pump system is complex, with many pipes and various valves, and the layout in the car is complicated, which affects the space utilization and aesthetics of the car. The control valves in the existing valve body integrated module are arranged in a messy way, with some arranged vertically and some arranged horizontally relative to the base plate, resulting in a complex structure of the valve body integrated module, which is not convenient to connect with the pipes and is not convenient to install and fix in the car.

[0004] Therefore, it is necessary to provide a valve body integrated module, a thermal management system and a vehicle to at least partially solve the above problems. Summary of the invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0006] In order to at least partially solve the above problems, a first aspect of the present invention provides a valve body integrated module, comprising:

[0007] substrate;

[0008] A plurality of electronic expansion valves, wherein the plurality of electronic expansion valves are arranged on the top of the substrate;

[0009] Wherein, the axial directions of the multiple electronic expansion valves are perpendicular to the substrate.

[0010] Optionally, the valve body integrated module further includes:

[0011] A plurality of flow channels, wherein the flow channels are arranged inside the substrate, and the electronic expansion valve is arranged on the flow channels;

[0012] A plurality of interfaces are provided on the substrate, the interfaces are connected to the flow channels, and each of the flow channels is connected to at least two of the interfaces.

[0013] Optionally, the valve body integrated module includes:

[0014] seven flow channels, wherein the flow channels are connected in parallel and / or in series inside the substrate;

[0015] There are eight interfaces, each of which can be connected to one or more other interfaces through the flow channel.

[0016] Optionally, the electronic expansion valve is used to throttle or control the flow of the refrigerant between any two of the interfaces.

[0017] Optionally, the valve body integrated module further includes:

[0018] A solenoid valve, which is arranged on any one of the flow channels to control the on-off of the flow channel;

[0019] A one-way valve is provided on any one of the flow channels to allow the refrigerant in the flow channel to flow in one direction.

[0020] A second aspect of the present invention provides a thermal management system, comprising:

[0021] an air conditioning system module for regulating the temperature of the vehicle's passenger compartment;

[0022] According to the valve body integrated module described in any one of the above technical solutions, the valve body integrated module is connected to the air conditioning system module.

[0023] Optionally, the thermal management system further comprises:

[0024] The temperature regulating pipe of the power battery is used to regulate the temperature of the power battery of the vehicle, and the valve body integrated module is connected to the temperature regulating pipe of the power battery.

[0025] Optionally, the thermal management system further comprises:

[0026] The temperature regulating pipeline of the driving module is used to adjust the temperature of the motor controller, and / or the plate heat exchanger, and / or the driving motor of the vehicle, and the valve body integrated module is connected to the temperature regulating pipeline of the driving module.

[0027] Optionally, the thermal management system further comprises:

[0028] A four-way pipe is connected to the temperature regulating pipes of the air conditioning system module, the valve body integrated module and the drive module respectively to construct a circulation path of the refrigerant.

[0029] Optionally, the air conditioning system module includes:

[0030] An in-vehicle evaporator, an in-vehicle heat exchanger, a compressor, a gas-liquid separator, a first out-vehicle heat exchanger, and a second out-vehicle heat exchanger;

[0031] The four-way pipe comprises: a first four-way pipe and a second four-way pipe;

[0032] The first four-way pipe is respectively connected to the compressor, the valve body integrated module, the in-vehicle heat exchanger, and the first out-vehicle heat exchanger;

[0033] The second four-way pipe is respectively connected to the temperature control pipeline of the driving module, the second off-vehicle heat exchanger, the on-vehicle evaporator, and the gas-liquid separator.

[0034] Optionally, the thermal management system further comprises:

[0035] A second solenoid valve is provided on a pipeline connecting the first off-vehicle heat exchanger to the first four-way pipe, and controls the on-off between the first four-way pipe and the first off-vehicle heat exchanger;

[0036] The third solenoid valve is arranged on the pipeline connecting the second four-way pipe to the valve body integrated module, and controls the connection and disconnection between the valve body integrated module and the second four-way pipe.

[0037] Optionally, the thermal management system further comprises:

[0038] The sixth electronic expansion valve is arranged on the pipeline connecting the valve body integrated module to the temperature control pipeline of the driving module, and throttles or controls the flow of the refrigerant between the valve body integrated module and the temperature control pipeline of the driving module.

[0039] Optionally, the thermal management system has a first heat exchange mode, in which:

[0040] The refrigerant enters the sixth interface of the valve body integrated module, enters the sixth flow channel, is throttled and expanded by the fourth electronic expansion valve in the sixth flow channel, and is output from the seventh interface. The refrigerant is then input into the evaporator in the vehicle, absorbs heat from the passenger compartment through the evaporator in the vehicle, and realizes the cooling function of the passenger compartment.

[0041] Optionally, the thermal management system has a second heat exchange mode, in which:

[0042] The refrigerant is input into the in-vehicle heat exchanger, and releases heat to the passenger compartment through the in-vehicle heat exchanger, realizing the heating function of the passenger compartment. Then the refrigerant is input into the eighth interface of the valve body integrated module, enters the seventh flow channel and the third flow channel, and is throttled and expanded by the fifth electronic expansion valve in the seventh flow channel and output from the second interface.

[0043] Optionally, the thermal management system has a third heat exchange mode, in which:

[0044] The refrigerant is input into the sixth interface of the valve body integrated module, enters the fifth flow channel and the fourth flow channel, is throttled and expanded by the third electronic expansion valve in the fourth flow channel, and is output from the fourth interface. The refrigerant is then input into the temperature control pipe of the power battery to absorb the heat of the power battery, thereby realizing the cooling function of the power battery. The refrigerant is then output from the temperature control pipe of the power battery, input into the third interface of the valve body integrated module, enters the second flow channel, is throttled and expanded by the second electronic expansion valve in the second flow channel, and is output from the second interface.

[0045] Optionally, the thermal management system has a fourth heat exchange mode, in which:

[0046] The refrigerant is input into the first interface of the valve body integrated module, enters the first flow channel, is throttled and expanded by the first electronic expansion valve in the first flow channel, and is output from the third interface. Then, it is input into the temperature control pipe of the power battery to release heat to the power battery, thereby realizing the low-temperature heating function of the power battery. Then, the refrigerant is output from the temperature control pipe of the power battery, input into the fourth interface of the valve body integrated module, enters the fourth flow channel and the third flow channel, is throttled and expanded by the third electronic expansion valve in the fourth flow channel, and is output from the second interface.

[0047] Optionally, the thermal management system has a fifth heat exchange mode, in which:

[0048] The refrigerant enters the sixth interface of the valve body integrated module, enters the fifth flow channel, is output from the fifth interface, and then enters the sixth electronic expansion valve. Through the throttling expansion of the sixth electronic expansion valve, the temperature regulating pipe of the input driving module absorbs the heat of the driving module, thereby realizing the cooling function of the driving module.

[0049] A third aspect of the present invention provides a vehicle, comprising:

[0050] Power battery;

[0051] Driver module;

[0052] According to the thermal management system described in any one of the above technical solutions, the thermal management system is connected to the power battery and the drive module respectively.

[0053] According to a valve body integrated module, thermal management system and vehicle of the present invention, the electronic expansion valve provided in the valve body integrated module is in a vertical relationship with the substrate, with a unified layout, convenient manufacturing, simplified structure of the valve body integrated module, convenient connection with pipelines, and convenient installation and fixing in the vehicle. The present invention connects the air conditioning system with the power battery and the drive module through the valve body integrated module, solving the problems of a large number of parts, messy pipelines, and high manufacturing costs in complex air conditioning system solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The embodiments of the present invention and their description are shown in the drawings to explain the principles of the present invention. In the drawings,

[0055] Figure 1 A three-dimensional diagram of a valve body integrated module according to a preferred embodiment of the present invention;

[0056] Figure 2 A three-dimensional diagram of a valve body integrated module according to a preferred embodiment of the present invention;

[0057] Figure 3 A three-dimensional diagram of a substrate according to a preferred embodiment of the present invention;

[0058] Figure 4 A three-dimensional diagram of a substrate according to a preferred embodiment of the present invention;

[0059] Figure 5 This is a schematic structural diagram of a valve body integrated module according to a preferred embodiment of the present invention;

[0060] Figure 6 A block diagram of a thermal management system according to a preferred embodiment of the present invention;

[0061] Figure 7 A schematic diagram of the structure of a thermal management system according to a preferred embodiment of the present invention;

[0062] Figure 8 A schematic diagram of a first working mode of a thermal management system according to a preferred embodiment of the present invention;

[0063] Fig. 9 A schematic diagram of a second working mode of a thermal management system according to a preferred embodiment of the present invention;

[0064] Fig.10 A schematic diagram of a third working mode of a thermal management system according to a preferred embodiment of the present invention;

[0065] Fig.11 A schematic diagram of a fourth working mode of a thermal management system according to a preferred embodiment of the present invention;

[0066] Fig.12 A schematic diagram of a fifth working mode of a thermal management system according to a preferred embodiment of the present invention;

[0067] Fig.13 A schematic diagram of the structure of a thermal management system according to a preferred embodiment of the present invention;

[0068] Fig.14A schematic diagram of a flow chart of a first working mode of a thermal management system according to a preferred embodiment of the present invention;

[0069] Fig.15 A schematic diagram of a flow chart of a second working mode of a thermal management system according to a preferred embodiment of the present invention;

[0070] Fig.16 A schematic diagram of a flow chart of a third working mode of a thermal management system according to a preferred embodiment of the present invention;

[0071] Fig.17 A schematic diagram of a flow chart of a fourth working mode of a thermal management system according to a preferred embodiment of the present invention;

[0072] Fig.18 It is a flow chart of the fifth working mode of the thermal management system according to a preferred embodiment of the present invention.

[0073] Description of reference numerals:

[0074] 100: Thermal management system 200: Air conditioning system module

[0075] 300: Valve body integrated module 400: Power battery

[0076] 500: drive module 501: motor controller

[0077] 502: Plate heat exchanger 503: Drive motor

[0078] 504: Electronic water pump 201: First off-board heat exchanger

[0079] 202: Electronic fan 203: In-vehicle heat exchanger

[0080] 204: In-car evaporator 205: Blower

[0081] 206: Sixth electronic expansion valve 207: Third solenoid valve

[0082] 208: Second off-board heat exchanger 209: Second four-way pipe

[0083] 210: Gas-liquid separator 211: Compressor

[0084] 212: First four-way pipe 213: Second solenoid valve

[0085] 301: First interface 302: Second interface

[0086] 303: Third interface 304: Fourth interface

[0087] 305: fifth interface 306: sixth interface

[0088] 307: seventh interface 308: eighth interface

[0089] 309: First solenoid valve 310: First electronic expansion valve

[0090] 311: Second electronic expansion valve 312: Third electronic expansion valve

[0091] 313: Fourth electronic expansion valve 314: Fifth electronic expansion valve

[0092] 315: Base plate 316: First valve seat

[0093] 317: Second valve seat 318: Third valve seat

[0094] 319: Fourth valve seat 320: Fifth valve seat

[0095] 321: Sixth valve seat 322: First check valve

[0096] 323: Second one-way valve 331: First flow channel

[0097] 332: Second flow channel 333: Third flow channel

[0098] 334: Fourth flow channel 335: Fifth flow channel

[0099] 336: Sixth flow channel 337: Seventh flow channel DETAILED DESCRIPTION

[0100] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0101] In order to fully understand the present invention, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0102] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifications and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0103] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in the present invention are for illustrative purposes only and are not limiting.

[0104] The present invention discloses a valve body integrated module 300, a thermal management system 100 and a vehicle.

[0105] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0106] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, in a preferred embodiment, a valve body integrated module 300 includes: a substrate 315 and a plurality of electronic expansion valves.

[0107] The base plate 315 is the installation base of the electronic expansion valve;

[0108] A plurality of electronic expansion valves are disposed on the top of the substrate 315 , and the electronic expansion valves are detachably mounted on the top of the substrate 315 ;

[0109] The axial directions of the multiple electronic expansion valves are perpendicular to the substrate 315 . The axial direction of the electronic expansion valve is usually the axial direction of its internal valve core or valve stem. When the electronic expansion valve is a cartridge valve, the axial direction of the electronic expansion valve is also its cartridge direction.

[0110] The valve body integrated module 300 in this embodiment has an electronic expansion valve and a substrate 315 that are in a vertical relationship, with a unified layout, compactness and regularity, and is easy to manufacture. This simplifies the structure of the valve body integrated module 300, facilitates connection with pipelines, and is also convenient for installation and fixation in the vehicle.

[0111] In one embodiment, the side of the base plate 315 needs to be provided with mounting ears or mounting holes for installation and fixation in the vehicle.

[0112] In one embodiment, the valve body integrated module 300 includes a plurality of valve seats, each of which is disposed on the top of the substrate 315 , and the electronic expansion valves are disposed in the valve seats, with one electronic expansion valve being disposed in each valve seat.

[0113] The axial direction of the mounting opening of the valve seat is perpendicular to the substrate 315 , the electronic expansion valve is arranged at the mounting opening of the valve seat, and the axial direction of the electronic expansion valve is perpendicular to the substrate 315 .

[0114] In one embodiment, the plurality of valve seats are integrally formed with the base plate 315 without welding, screwing or other processes, thereby ensuring the sealing of the refrigerant and significantly reducing the risk of leakage. The base plate 315 and the valve seats can be manufactured by casting and / or machining.

[0115] In one embodiment, if Figure 5 As shown, the valve body integrated module 300 also includes:

[0116] Multiple flow channels, the flow channels are arranged inside the substrate 315, and the electronic expansion valve is arranged on the flow channels; the valve seat is connected to the flow channels, and the electronic expansion valve is arranged in the valve seat, that is, the control of the flow channels is realized;

[0117] Multiple interfaces, the interfaces are arranged on the substrate 315, the interfaces are connected to the flow channels, and each flow channel is connected to at least two interfaces.

[0118] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the valve body integrated module 300 does not include a plate heat exchanger, has no ethylene glycol water solution heat exchange medium, and only includes components and flow channels for passing the air-conditioning refrigerant medium. Compared with other thermal management integrated modules, the structure is lighter and more compact.

[0119] In one embodiment, the valve body integrated module 300 includes:

[0120] Seven flow channels, the flow channels are connected in parallel and / or in series inside the substrate 315;

[0121] Eight interfaces, each of which can be connected to one or more other interfaces through a flow channel.

[0122] In one embodiment, if Figure 5 As shown, the seven flow channels are: a first flow channel 331 , a second flow channel 332 , a third flow channel 333 , a fourth flow channel 334 , a fifth flow channel 335 , a sixth flow channel 336 , and a seventh flow channel 337 .

[0123] The eight interfaces are: a first interface 301 , a second interface 302 , a third interface 303 , a fourth interface 304 , a fifth interface 305 , a sixth interface 306 , a seventh interface 307 and an eighth interface 308 .

[0124] Most of the above interfaces are arranged on the top of the base plate 315, and some are arranged on the side of the base plate 315. The orientation of the interface is arranged according to the direction of the pipe to be connected, and can be arranged toward the top or side of the base plate 315. The interface can be designed as a threaded interface or a card interface.

[0125] In one embodiment, the seven flow channels and the eight interfaces are connected in a manner as follows: Figure 5 As shown:

[0126] The first flow channel 331 connects the first interface 301 and the third interface 303;

[0127] The second flow channel 332 connects the second interface 302 and the third interface 303 ; the second flow channel 332 partially overlaps with the first flow channel 331 at a position close to the third interface 303 ;

[0128] The third flow channel 333 is connected to the second interface 302; the third flow channel 333 is generally arranged in the middle of the substrate 315, and can constitute a common flow channel connected to other interfaces; the third flow channel 333 and the second flow channel 332 partially overlap at a position close to the second interface 302;

[0129] The fourth flow channel 334 connects the fourth interface 304 and the third flow channel 333;

[0130] The fifth flow channel 335 connects the fifth interface 305 and the sixth interface 306 , and is also connected to the third flow channel 333 ;

[0131] The sixth flow channel 336 connects the sixth interface 306 and the seventh interface 307 ; the sixth flow channel 336 partially overlaps with the fifth flow channel 335 at a position close to the sixth interface 306 ;

[0132] The seventh flow channel 337 connects the eighth port 308 and the third flow channel 333 .

[0133] In one embodiment, the electronic expansion valve is used to throttle or control the flow of refrigerant between any two interfaces. Figure 5 As shown, the electronic expansion valves in this embodiment include: a first electronic expansion valve 310 , a second electronic expansion valve 311 , a third electronic expansion valve 312 , a fourth electronic expansion valve 313 , and a fifth electronic expansion valve 314 .

[0134] The first electronic expansion valve 310 is disposed on the first flow channel 331 and is used to throttle or control the flow of the refrigerant between the first interface 301 and the third interface 303;

[0135] The second electronic expansion valve 311 is disposed on the second flow channel 332 and is used to throttle or control the flow of the refrigerant between the second interface 302 and the third interface 303;

[0136] The third electronic expansion valve 312 is disposed on the fourth flow channel 334 and is used to throttle or control the flow of the refrigerant between the fourth interface 304 and the third flow channel 333;

[0137] The fourth electronic expansion valve 313 is disposed on the sixth flow channel 336 and is used to throttle or control the flow of the refrigerant between the sixth interface 306 and the seventh interface 307;

[0138] The fifth electronic expansion valve 314 is disposed on the seventh flow channel 337 and is used to throttle or control the flow of the refrigerant between the eighth interface 308 and the third flow channel 333 .

[0139] Correspondingly, the valve seats in this embodiment include: a first valve seat 316 , a second valve seat 317 , a third valve seat 318 , a fourth valve seat 319 , a fifth valve seat 320 , and a sixth valve seat 321 .

[0140] The above electronic expansion valves are all cartridge valves, which are connected to the valve seat by cartridge connection; they can also be connected to the valve seat by threaded connection. The above flow control includes controlling the flow size of the refrigerant, and also includes controlling the on-off of the flow channel.

[0141] The order and installation position of the valve bodies can also be changed according to different system solutions, which significantly improves the flexibility of the valve body integrated module 300 and its versatility in adapting to different solutions.

[0142] In one embodiment, the valve body integrated module further comprises:

[0143] Solenoid valve, which is set on any flow channel to control the on and off of the flow channel;

[0144] One-way valve: A one-way valve is set on any flow channel to allow the refrigerant in the flow channel to flow in one direction.

[0145] like Figure 5 As shown, the solenoid valve in this embodiment includes: a first solenoid valve 309 .

[0146] The first solenoid valve 309 is disposed on the third flow channel 333 to control the connection between the third flow channel 333 and the second interface 302 .

[0147] The one-way valve in this embodiment includes: a first one-way valve 322 and a second one-way valve 323 .

[0148] The first check valve 322 is disposed on the third flow channel 333 and is located between the connection point between the fourth flow channel 334 and the third flow channel 333 and the connection point between the seventh flow channel 337 and the third flow channel 333. The first check valve 322 allows the refrigerant to flow from the fourth flow channel 334 to the third flow channel 333 in one direction.

[0149] The second one-way valve 323 is disposed on the fifth flow channel 335 and is located between the sixth interface 306 , the fifth flow channel 335 and the connection point of the third flow channel 333 . The second one-way valve 323 allows the refrigerant to flow from the sixth interface 306 to the third flow channel 333 in one direction.

[0150] like Figure 6 , Figure 7 As shown, an embodiment of the present invention further provides a thermal management system 100, comprising:

[0151] Air conditioning system module 200;

[0152] According to the valve body integrated module 300 in any one of the above embodiments, the valve body integrated module 300 is connected to the air conditioning system module 200 .

[0153] In one embodiment, if Figure 7 As shown, the thermal management system 100 further includes:

[0154] The temperature regulating pipe of the power battery 400 is used to regulate the temperature of the power battery 400 of the vehicle, and the valve body integrated module 300 is connected to the temperature regulating pipe of the power battery 400. The refrigerant is input into the temperature regulating pipe of the power battery 400 to heat or cool the power battery 400.

[0155] In one embodiment, if Figure 7 , Fig.13 As shown, the thermal management system 100 further includes:

[0156] The temperature regulating pipe of the driving module 500 is used to adjust the temperature of the motor controller 501, and / or the plate heat exchanger 502, and / or the driving motor 503 of the vehicle, and the valve body integrated module 300 is connected to the temperature regulating pipe of the driving module 500. The refrigerant is input into the temperature regulating pipe of the driving module 500, which can mainly cool the motor controller 501, the plate heat exchanger 502, and the driving motor 503 of the vehicle.

[0157] In one embodiment, the thermal management system 100 further includes:

[0158] The four-way pipe is respectively connected to the temperature control pipes of the air conditioning system module 200, the valve body integrated module 300, and the driving module 500 to construct a circulation path for the refrigerant.

[0159] In one embodiment, if Figure 7 As shown, the cross-tube includes:

[0160] The first cross-tube 212 includes four ports, which are interconnected internally, and the four ports are respectively: a first port, a second port, a third port, and a fourth port; the second port of the first cross-tube 212 is connected to the first interface 301 of the valve body integrated module 300;

[0161] The second four-way tube 209 includes four ports, which are internally interconnected, and the four ports are: a first port, a second port, a third port, and a fourth port; the first port of the second four-way tube 209 is connected to the temperature control pipe of the vehicle's drive module 500, and the second port of the second four-way tube 209 is connected to the second interface 302 of the valve body integrated module 300.

[0162] In one embodiment, if Figure 7 As shown, the air conditioning system module 200 also includes:

[0163] The in-vehicle evaporator 204 , the inlet of the in-vehicle evaporator 204 is connected to the seventh interface 307 of the valve body integrated module 300 , and the outlet of the in-vehicle evaporator 204 is connected to the third port of the second four-way pipe 209 ;

[0164] The in-vehicle heat exchanger 203 has an outlet connected to the eighth interface 308 of the valve body integrated module 300 , and an inlet connected to the third port of the first four-way pipe 212 .

[0165] The in-vehicle evaporator 204 and the in-vehicle heat exchanger 203 are arranged in the air-conditioning box, and a blower 205 is also configured in the air-conditioning box. The blower 205 provides airflow for the in-vehicle evaporator 204 and the in-vehicle heat exchanger 203, which can improve the heat exchange effect of the in-vehicle evaporator 204 and the in-vehicle heat exchanger 203.

[0166] In one embodiment, if Figure 7 As shown, the air conditioning system module 200 also includes:

[0167] A compressor 211, wherein an outlet of the compressor 211 is connected to a first port of a first cross-way pipe 212;

[0168] The gas-liquid separator 210 has an outlet connected to the inlet of the compressor 211 , and an inlet of the gas-liquid separator 210 connected to the fourth port of the second four-way pipe 209 .

[0169] In one embodiment, if Figure 7 As shown, the air conditioning system module 200 also includes:

[0170] A first off-vehicle heat exchanger 201, wherein an inlet of the first off-vehicle heat exchanger 201 is connected to a fourth port of the first four-way pipe 212, and an outlet of the first off-vehicle heat exchanger 201 is connected to a sixth interface 306 of the valve body integrated module 300;

[0171] The second off-vehicle heat exchanger 208 has an inlet connected to the second interface 302 of the valve body integrated module 300 , and an outlet connected to the second port of the second four-way pipe 209 .

[0172] The first external heat exchanger 201 is further configured with an electronic fan 202 . The electronic fan 202 provides airflow for the first external heat exchanger 201 , thereby improving the heat exchange effect of the first external heat exchanger 201 .

[0173] In one embodiment, if Figure 7 As shown, the thermal management system 100 further includes:

[0174] A second solenoid valve 213, which is disposed on a pipeline connecting the first off-vehicle heat exchanger 201 to the fourth port of the first four-way pipe 212, and controls the on-off between the fourth port of the first four-way pipe 212 and the first off-vehicle heat exchanger 201;

[0175] The third solenoid valve 207 is arranged on the pipeline where the second port of the second four-way pipe 209 is connected to the second interface 302 of the valve body integrated module 300 to control the connection between the second interface 302 of the valve body integrated module 300 and the second port of the second four-way pipe 209 .

[0176] In one embodiment, if Figure 7 As shown, the third interface 303 and the fourth interface 304 of the valve body integrated module 300 are used to connect the temperature regulating pipe of the power battery 400 of the vehicle;

[0177] The fifth interface 305 of the valve body integrated module 300 is used to connect to the temperature control pipeline of the driving module 500 of the vehicle.

[0178] In one embodiment, if Figure 7 As shown, the thermal management system 100 further includes:

[0179] The sixth electronic expansion valve 206 is arranged on the pipeline where the fifth interface 305 of the valve body integrated module 300 connects to the temperature control pipeline of the driving module 500, and is used to throttle or control the flow of the refrigerant between the fifth interface 305 and the temperature control pipeline of the driving module 500.

[0180] The above-mentioned flow control includes controlling the flow rate of the refrigerant and also controlling the on-off state of the pipeline.

[0181] Figures 8 to 12 A schematic diagram of a cycle for the thermal management system 100 to realize the functions of passenger compartment cooling and heating, power battery cooling and heating, and drive module cooling.

[0182] The thermal management system 100 in this embodiment includes the following working modes (heat exchange modes):

[0183] The first working mode is used to cool the passenger compartment:

[0184] Figure 8The figure is a schematic diagram of the refrigeration cycle of the thermal management system 100. The high-temperature and high-pressure refrigerant compressed by the compressor 211 is cooled to a high-pressure liquid refrigerant through the first off-board heat exchanger 201. The high-pressure liquid refrigerant is input to the sixth interface 306 of the valve body integrated module 300, and is expanded by the fourth electronic expansion valve 313 in the valve body integrated module 300 to become a low-pressure and low-temperature refrigerant. The low-temperature refrigerant flows through the flow channel in the valve body integrated module 300 and is input from the seventh interface 307 to the in-vehicle evaporator 204 in the air-conditioning box. The in-vehicle evaporator 204 absorbs the heat in the passenger compartment to achieve the cooling function of the passenger compartment. The low-pressure gas refrigerant coming out of the in-vehicle evaporator 204 is input to the gas-liquid separator 210 through the second four-way pipe 209, and finally returns to the compressor 211. The process of the first working mode is as follows: Fig.14 shown.

[0185] The second working mode is used to achieve heating of the passenger compartment:

[0186] Fig. 9 This is a schematic diagram of the heating cycle loop of the thermal management system 100. The high-temperature and high-pressure refrigerant compressed by the compressor 211 passes through the in-car heat exchanger 203 in the air-conditioning box, and releases heat to the passenger compartment through the in-car heat exchanger 203, and the passenger compartment heating function is realized by heat exchange with the air. The refrigerant output from the in-car heat exchanger 203 in the air-conditioning box is input to the eighth interface 308 of the valve body integrated module 300, and after passing through the fifth electronic expansion valve 314 in the valve body integrated module 300, it is input from the second interface 302 to the second external heat exchanger 208 for evaporation and heat absorption, and finally returns to the gas-liquid separator 210 through the second four-way pipe 209, and finally returns to the compressor 211. The second external heat exchanger 208 can be an air source heat exchanger or a water source heat exchanger. The process of the second working mode is as follows. Fig.15 shown.

[0187] The third working mode is used to cool the power battery 400:

[0188] Fig.10This is a schematic diagram of the power battery refrigeration cycle. The high-temperature and high-pressure refrigerant compressed by the compressor 211 is cooled to a high-pressure liquid refrigerant through the first off-vehicle heat exchanger 201. The high-pressure liquid refrigerant is input into the sixth interface 306 of the valve body integrated module 300, and becomes a low-pressure and low-temperature refrigerant after passing through the valve body integrated module 300. The low-temperature refrigerant is input into the air-conditioning refrigerant heat exchange plate in the power battery 400 from the fourth interface 304 of the valve body integrated module 300, absorbs the heat of the power battery 400, and realizes the cooling function of the power battery 400. After evaporation of the power battery 400, the low-pressure gas refrigerant coming out of the air-conditioning refrigerant heat exchange plate in the power battery returns to the valve body integrated module 300 through the third interface 303 of the valve body integrated module 300, and then is sequentially input into the third solenoid valve 207, the second four-way pipe 209, and the gas-liquid separator 210 through the second interface 302 of the valve body integrated module 300, and finally returns to the compressor 211. The process of the third working mode is as follows: Fig.16 shown.

[0189] The fourth working mode is used to achieve heating of the power battery 400:

[0190] Fig.11 This is a schematic diagram of the low-temperature heating circuit of the power battery. The high-temperature and high-pressure refrigerant compressed by the compressor 211 is input into the first interface 301 of the valve body integrated module 300 through the first four-way pipe 212, and enters the air-conditioning refrigerant heat exchange plate in the input power battery 400 through the third interface 303 of the valve body integrated module 300. The heat is transferred to the power battery in the heat exchange plate to realize the low-temperature heating function of the power battery 400. The refrigerant output from the air-conditioning refrigerant heat exchange plate in the power battery 400 is input into the valve body integrated module 300 through the fourth interface 304, and is output from the second interface 302 of the valve body integrated module 300 and then input into the second off-vehicle heat exchanger 208. After evaporation and heat absorption by the second off-vehicle heat exchanger 208, it is sequentially input into the second four-way pipe 209 and the gas-liquid separator 210, and finally returns to the compressor 211. The process of the fourth working mode is as follows: Fig.17 shown.

[0191] The fifth working mode is used to cool the driving module 500:

[0192] Fig.12This is a schematic diagram of the refrigeration cycle of the drive module. The high-temperature and high-pressure refrigerant compressed by the compressor 211 is cooled to a high-pressure liquid refrigerant through the first off-vehicle heat exchanger 201. The high-pressure liquid refrigerant is input into the sixth interface 306 of the valve body integrated module 300. After passing through the fifth flow channel 335 in the valve body integrated module 300, it is output from the fifth interface 305 of the valve body integrated module 300 and input into the sixth electronic expansion valve 206. After expansion through the sixth electronic expansion valve 206, it becomes a low-pressure and low-temperature refrigerant. The low-temperature refrigerant is input into the air-conditioning refrigerant heat exchange plate in the drive module 500 to absorb the heat of the drive module 500 and realize the cooling function of the drive module 500. After evaporation through the drive module 500, the low-pressure gas refrigerant coming out of the air-conditioning refrigerant heat exchange plate in the drive module passes through the second four-way pipe 209, is input into the gas-liquid separator 210, and finally returns to the compressor 211. The process of the fifth working mode is as follows: Fig.18 shown.

[0193] An embodiment of the present invention further provides a vehicle, comprising:

[0194] Power battery 400; the power battery 400 may be a lithium-ion battery, a sodium-ion battery or other power battery;

[0195] Driving module 500; the driving module 500 includes a motor and a reducer;

[0196] According to the thermal management system 100 in any one of the above embodiments, the thermal management system 100 is connected to the power battery 400 and the drive module 500 respectively.

[0197] In one embodiment, if Fig.13 As shown, the driving module 500 includes:

[0198] The motor controller 501, the inlet of the temperature-adjusting pipeline of the motor controller 501 is connected to the fifth interface 305 of the valve body integrated module 300, and the outlet of the temperature-adjusting pipeline of the motor controller 501 is connected to the first port of the second four-way pipe 209;

[0199] The plate heat exchanger 502 includes two inlets and two outlets. The first inlet of the plate heat exchanger 502 is connected to the fifth interface 305 of the valve body integrated module 300 , and the first outlet of the plate heat exchanger 502 is connected to the first port of the second four-way pipe 209 .

[0200] The driving motor 503 has an inlet of a temperature regulating pipe connected to the second outlet of the plate heat exchanger 502 , and the outlet of the temperature regulating pipe of the driving motor 503 is connected to the second inlet of the plate heat exchanger 502 .

[0201] Through the above arrangement, the cooling function of the drive module can be transformed into splitting the drive module into separate cooling of the drive motor 503 and the motor controller 501, wherein the motor controller 501 directly exchanges heat and cools down the motor through the low-temperature refrigerant coming out of the fifth interface 305 of the valve body integrated module 300, and at the same time, the low-temperature refrigerant coming out of the fifth interface 305 can be input into the plate heat exchanger 502 at the same time, and heat exchange is performed with the ethylene glycol aqueous solution in the plate heat exchanger 502, thereby indirectly cooling down the drive motor 503. Since the drive motor 503 has higher temperature resistance than the motor controller 501 and is relatively insensitive to temperature, this solution is simpler and easier to control than the above solution. At the same time, when the temperature is not high, only the electronic water pump 504 can be turned on to perform self-circulation cooling on the drive motor, thereby reducing the workload on the compressor and the air-conditioning system.

[0202] Since the temperature of the refrigerant after passing through the valve body integrated module 300 can be reduced to below 10°C, and the temperature of the coolant in the current conventional cooling solution using coolant is usually between 45 and 55°C, the motor controller cooling solution proposed in the present invention has a greatly improved cooling effect compared with the conventional liquid cooling solution, and can quickly reduce the temperature of the high-temperature components in the motor controller to an appropriate temperature in a short time, thereby solving the problems of poor cooling effect and temperature reduction hysteresis in the existing conventional motor controller liquid cooling solution.

[0203] According to a valve body integrated module, thermal management system and vehicle of the present invention, the electronic expansion valve arranged in the valve body integrated module is in a vertical relationship with the substrate, has a unified layout, is compact and regular, is easy to manufacture, simplifies the structure of the valve body integrated module, is convenient for connection with pipelines, and is also convenient for installation and fixation in the vehicle.

[0204] Since the electronic expansion valve is required to be installed vertically upward (to prevent the valve core from being blocked by impurities in the refrigerant), compared with the prior art, the valve body integrated module in the present invention can meet the requirement that all electronic expansion valves are arranged vertically upward.

[0205] The valve body integrated module of the present invention contains only one working fluid, air conditioning refrigerant, and does not contain other working fluids such as ethylene glycol aqueous solution. In addition to the power battery using the cold source provided by the air conditioner to achieve the cooling function, the drive module can also use the cold source provided by the air conditioning system through the integrated module to achieve the rapid cooling function, solving the problems of poor cooling effect and cooling hysteresis in the existing drive module using the liquid cooling solution of ethylene glycol aqueous solution, while improving the system integration, reducing components such as radiators, water pumps and water pipes, and greatly reducing costs.

[0206] The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

[0207] In understanding the scope of the present invention, the term "comprise" and its derivatives as used herein are intended to be open terms, which specify the existence of recorded features, elements, components, groups, wholes and / or steps, but do not exclude the existence of other unrecorded features, elements, components, groups, wholes and / or steps. This concept also applies to words with similar meanings, such as the terms "include", "have" and their derivatives.

[0208] The terms "attached" or "attached" as used herein include: a configuration where an element is directly secured to another element by directly securing the element to the other element; a configuration where an element is indirectly secured to another element by securing the element to an intermediate member which in turn is secured to the other element; and a configuration where one element is integral with the other element, i.e., one element is substantially a part of the other element. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "bond," "fix," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent the amount of deviation that modifies the term such that the end result will not be significantly changed.

[0209] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. The features described herein in one embodiment may be applied to another embodiment individually or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

[0210] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention.

Claims

1. A valve body integrated module, It is characterized in that include: substrate(315); A plurality of electronic expansion valves, wherein the plurality of electronic expansion valves are arranged on the top of the substrate (315); Wherein, the axial directions of the multiple electronic expansion valves are perpendicular to the substrate (315).

2. The valve body integrated module according to claim 1, It is characterized in that Also includes: A plurality of flow channels, wherein the flow channels are arranged inside the substrate (315), and the electronic expansion valve is arranged on the flow channels; A plurality of interfaces are provided on the substrate (315), the interfaces are connected to the flow channels, and each of the flow channels is connected to at least two of the interfaces.

3. The valve body integrated module according to claim 2, It is characterized in that include: seven flow channels, wherein the flow channels are connected in parallel and / or in series inside the substrate (315); There are eight interfaces, each of which can be connected to one or more other interfaces through the flow channel.

4. The valve body integrated module according to claim 2 or 3, It is characterized in that The electronic expansion valve is used to throttle or control the flow of the refrigerant between any two of the interfaces.

5. The valve body integrated module according to claim 2 or 3, It is characterized in that Also includes: A solenoid valve, which is arranged on any one of the flow channels to control the on-off of the flow channel; A one-way valve is provided on any one of the flow channels to allow the refrigerant in the flow channel to flow in one direction.

6. A thermal management system, It is characterized in that include: An air conditioning system module (200) for regulating the temperature of a passenger compartment of a vehicle; According to the valve body integrated module (300) according to any one of claims 1 to 5, the valve body integrated module (300) is connected to the air conditioning system module (200).

7. The thermal management system according to claim 6, It is characterized in that Also includes: The temperature regulating pipe of the power battery (400) is used to regulate the temperature of the power battery (400) of the vehicle, and the valve body integrated module (300) is connected to the temperature regulating pipe of the power battery (400).

8. The thermal management system according to claim 7, It is characterized in that Also includes: The temperature regulating pipe of the driving module (500) is used to regulate the temperature of the motor controller (501) and / or the plate heat exchanger (502) and / or the driving motor (503) of the vehicle, and the valve body integrated module (300) is connected to the temperature regulating pipe of the driving module (500).

9. The thermal management system according to claim 8, It is characterized in that Also includes: A four-way pipe, wherein the four-way pipe is respectively connected to the temperature control pipes of the air conditioning system module (200), the valve body integrated module (300), and the drive module (500) to construct a circulation path for the refrigerant.

10. The thermal management system according to claim 9, It is characterized in that The air conditioning system module (200) comprises: An in-vehicle evaporator (204), an in-vehicle heat exchanger (203), a compressor (211), a gas-liquid separator (210), a first out-vehicle heat exchanger (201), and a second out-vehicle heat exchanger (208); The four-way pipe comprises: a first four-way pipe (212) and a second four-way pipe (209); The first four-way pipe (212) is respectively connected to the compressor (211), the valve body integrated module (300), the in-vehicle heat exchanger (203), and the first out-vehicle heat exchanger (201); The second four-way pipe (209) is respectively connected to the temperature control pipe of the driving module (500), the second off-vehicle heat exchanger (208), the on-vehicle evaporator (204), and the gas-liquid separator (210).

11. The thermal management system according to claim 10, It is characterized in that Also includes: a second solenoid valve (213), arranged on a pipeline connecting the first off-board heat exchanger (201) and the first four-way pipe (212), and controlling the connection and disconnection between the first four-way pipe (212) and the first off-board heat exchanger (201); The third solenoid valve (207) is arranged on the pipeline connecting the second four-way pipe (209) and the valve body integrated module (300), and controls the connection and disconnection between the valve body integrated module (300) and the second four-way pipe (209).

12. The thermal management system according to claim 8, It is characterized in that Also includes: The sixth electronic expansion valve (206) is arranged on the pipeline connecting the valve body integrated module (300) to the temperature control pipeline of the drive module (500), and is used to throttle or control the flow of the refrigerant between the valve body integrated module (300) and the temperature control pipeline of the drive module (500).

13. The thermal management system according to any one of claims 6 to 12, It is characterized in that The thermal management system has a first heat exchange mode. In the first heat exchange mode: The refrigerant enters the sixth interface (306) of the valve body integrated module (300), enters the sixth flow channel (336), is throttled and expanded by the fourth electronic expansion valve (313) in the sixth flow channel (336), and is output from the seventh interface 307. The refrigerant is then input into the in-vehicle evaporator (204), and absorbs heat from the passenger compartment through the in-vehicle evaporator (204), thereby achieving a cooling function for the passenger compartment.

14. The thermal management system according to any one of claims 6 to 12, It is characterized in that The thermal management system has a second heat exchange mode. In the second heat exchange mode: The refrigerant is input into the in-vehicle heat exchanger (203), and releases heat to the passenger compartment through the in-vehicle heat exchanger (203), thereby realizing the heating function of the passenger compartment. Then, the refrigerant is input into the eighth interface (308) of the valve body integrated module (300), enters the seventh flow channel (337) and the third flow channel (333), and is throttled and expanded by the fifth electronic expansion valve (314) in the seventh flow channel (337), and then output from the second interface (302).

15. The thermal management system according to any one of claims 6 to 12, It is characterized in that The thermal management system has a third heat exchange mode, in which: The refrigerant is input into the sixth interface (306) of the valve body integrated module (300), enters the fifth flow channel (335) and the fourth flow channel (334), is throttled and expanded by the third electronic expansion valve (312) in the fourth flow channel (334), and is output from the fourth interface (304). The refrigerant is then input into the temperature control pipe of the power battery (400) to absorb the heat of the power battery (400), thereby realizing the cooling function of the power battery (400). The refrigerant is then output from the temperature control pipe of the power battery (400), input into the third interface (303) of the valve body integrated module (300), enters the second flow channel (332), is throttled and expanded by the second electronic expansion valve (311) in the second flow channel (332), and is output from the second interface (302).

16. The thermal management system according to any one of claims 6 to 12, It is characterized in that The thermal management system has a fourth heat exchange mode, in which: The refrigerant is input into the first interface (301) of the valve body integrated module (300), enters the first flow channel (331), is throttled and expanded by the first electronic expansion valve (310) in the first flow channel (331), and is output from the third interface (303). The refrigerant is then input into the temperature control pipe of the power battery (400) to release heat to the power battery (400), thereby realizing the low-temperature heating function of the power battery (400). The refrigerant is then output from the temperature control pipe of the power battery (400), input into the fourth interface (304) of the valve body integrated module (300), enters the fourth flow channel (334) and the third flow channel (333), is throttled and expanded by the third electronic expansion valve (312) in the fourth flow channel (334), and is output from the second interface (302).

17. The thermal management system according to any one of claims 6 to 12, It is characterized in that The thermal management system has a fifth heat exchange mode, in which: The refrigerant is input into the sixth interface (306) of the valve body integrated module (300), enters the fifth flow channel (335), is output from the fifth interface (305), and then is input into the sixth electronic expansion valve (206). The throttling expansion of the sixth electronic expansion valve (206) is input into the temperature control pipe of the driving module (500) to absorb the heat of the driving module (500), thereby realizing the cooling function of the driving module (500).

18. A vehicle, It is characterized in that include: Power battery (400); Driver Module(500) ； According to the thermal management system (100) according to claims 6 to 12, the thermal management system (100) is connected to the power battery (400) and the drive module (500), respectively.

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