Four-way valve, temperature control system and energy storage system

Abstract

The embodiment of the invention provides a four-way valve, a temperature control system and an energy storage system. The four-way valve comprises a valve body and a valve element. The valve body comprises a mounting cavity, a first valve port, a second valve port, a third valve port and a fourth valve port. The first valve port, the second valve port, the third valve port and the fourth valve port penetrate through the inner side face of the mounting cavity and the outer side face of the valve body and are used for fluid circulation. The valve element is contained in the mounting cavity and can rotate relative to the valve body, and a plurality of partition cavities are formed in the peripheral side of the valve element. The working modes of the four-way valve comprise a first mode, a second mode and a third mode, and the four-way valve is switched among the first mode, the second mode and the third mode through rotation of the valve element relative to the valve body. The four-way valve is favorable for reducing the use number of three-way valves in the temperature control system, increasing the flow path modes of the temperature control system and improving the control convenience of the temperature control system.

Description

Technical Field

[0001] This application relates to the technical field of shunt systems, and particularly to a four-way valve, a temperature control system, and an energy storage system. Background Art

[0002] With the booming development of industries such as new energy vehicles and energy storage stations, the importance and complexity of the thermal management system have been gradually increasing, especially the complexity of the liquid pipelines has increased more significantly. For example, the functional modules that may utilize the liquid pipelines in an energy storage system include: battery refrigeration, battery heat pump heating, battery thermistor heating, load (power conversion system, PCS) cooling, and energy storage cabinet dehumidification, etc. In the automotive field, it also involves motor cooling, occupant compartment cooling, and heating, etc. In order to achieve temperature control of different positions of the entire device using a thermal management system, it is usually necessary to set up a relatively large number of electromagnetic three-way valve combinations in the liquid pipelines of the thermal management system. Using multiple three-way valves will bring problems such as complex control, complex installation, high cost, and also occupy more space. Summary of the Invention

[0003] Embodiments of this application provide a four-way valve, a temperature control system, and an energy storage system, which reduce the volume of the multi-way valve. The structure of the multi-way valve is simple, and it is also beneficial to reduce the leakage risk of the temperature control system.

[0004] In a first aspect, an embodiment of this application provides a four-way valve applied to a temperature control system. The four-way valve includes a valve body and a valve core. The valve body includes an installation cavity, a first valve port, a second valve port, a third valve port, and a fourth valve port. The first valve port, the second valve port, the third valve port, and the fourth valve port all penetrate the inner side surface of the installation cavity and the outer side surface of the valve body for fluid circulation. The valve core is received in the installation cavity and can rotate relative to the valve body. At least two partition cavities are included on the circumferential side of the valve core. The working modes of the four-way valve include a first mode, a second mode, and a third mode. By rotating the valve core relative to the valve body, the four-way valve is switched between the first mode, the second mode, and the third mode. When the four-way valve is in the first mode, the first valve port and the second valve port are connected through at least one of the partition cavities, and the third valve port and the fourth valve port are connected through at least one of the partition cavities. When the four-way valve is in the second mode, the first valve port and the fourth valve port are connected through at least one of the partition cavities, and the second valve port and the third valve port are connected through at least one of the partition cavities. When the four-way valve is in the third mode, the first valve port and the third valve port are connected through at least one of the partition cavities, and the second valve port and the fourth valve port are connected through at least one of the partition cavities.

[0005] The four-way valve provided by this application is the flow path mode switching hub of the temperature control system, and different flow path modes are realized by switching the working positions of the four-way valve. Applying a four-way valve with three working modes in the temperature control system is beneficial to reducing the number of three-way valves used in the temperature control system, increasing the flow path modes of the temperature control system, and improving the control convenience of the temperature control system.

[0006] According to the first aspect, in a possible implementation manner, the third valve port includes a first third valve port and a second third valve port; the fourth valve port includes a first fourth valve port and a second fourth valve port, the first third valve port communicates with the second third valve port, and the first fourth valve port communicates with the second fourth valve port; the first valve port, the second valve port, the first third valve port, the second third valve port, the first fourth valve port, and the second fourth valve port all include inner ports facing the installation cavity; when the four-way valve is in the first mode, the inner ports of the second third valve port and the second fourth valve port are closed by the valve core, the inner port of the first valve port and the inner port of the first fourth valve port are communicated through at least one of the partition cavities, and the inner port of the second valve port and the inner port of the first third valve port are communicated through at least one of the partition cavities; when the four-way valve is in the second mode, the inner ports of the second third valve port and the second fourth valve port are closed by the valve core, the inner port of the first valve port and the inner port of the second valve port are communicated through at least one of the partition cavities, and the inner port of the first fourth valve port and the inner port of the first third valve port are communicated through at least one of the partition cavities; when the four-way valve is in the third mode, the inner ports of the first fourth valve port and the first third valve port are closed by the valve core, the inner port of the first valve port and the inner port of the second third valve port are communicated through at least one of the partition cavities, and the inner port of the second fourth valve port and the inner port of the second valve port are communicated through at least one of the partition cavities.

[0007] In this possible implementation manner, a second third valve port communicated with the first third valve port and a second fourth valve port communicated with the first fourth valve port are added to the valve body. By the movement of the valve core relative to the valve body, the four-way valve can be switched between three working modes, increasing the flow path modes of the temperature control system and improving the control flexibility of the temperature control system. In addition, since only valve ports need to be added to the valve body, in this way, there is no need to set complex flow channel structures on the valve core, reducing the preparation difficulty and manufacturing cost of the valve core.

[0008] According to the first aspect, in a possible implementation, the first valve port, the second valve port, the first third valve port, the second third valve port, the first fourth valve port, and the second fourth valve port are arranged in an array. The second third valve port, the first valve port, and the first fourth valve port are arranged in sequence to form the first row, and the second fourth valve port, the second valve port, and the second third valve port are arranged in sequence to form the second row.

[0009] In this possible implementation, the first valve port, the second valve port, the first third valve port, the second third valve port, the first fourth valve port, and the second fourth valve port are arranged in an array, which is beneficial to improving the regularity of the connection between multiple valve ports and the corresponding fluid pipelines.

[0010] According to the first aspect, in a possible implementation, the inner wall of the installation cavity includes an inner peripheral wall and an inner bottom wall that are connected. The inner bottom wall is perpendicular to the axial direction of the valve core. The first valve port, the second valve port, the third valve port, and the fourth valve port all include an outer port and an inner port. The inner ports of the first valve port, the second valve port, and the third valve port are all arranged on the inner peripheral wall, and the inner port of the fourth valve port is arranged on the inner bottom wall. The outer ports are all arranged on the outer wall of the valve body. The multiple partition cavities include a first partition cavity and a second partition cavity. The first partition cavity and the second partition cavity are arranged along the circumferential direction of the valve core. The second partition cavity penetrates the bottom wall of the valve core facing the inner bottom wall, and the second partition cavity is communicated with the fourth valve port. A part of the second partition cavity and the fourth valve port are arranged along the rotation axis of the valve core. When the four-way valve is in the first mode, the first valve port, the second valve port, and the first partition cavity are communicated, and the fourth valve port, the third valve port, and the second partition cavity are communicated. When the four-way valve is in the second mode, the first valve port, the fourth valve port, and the second partition cavity are communicated, and the second valve port, the third valve port, and the first partition cavity are communicated. When the four-way valve is in the third mode, the third valve port, the first valve port, and the first partition cavity are communicated, and the second valve port, the fourth valve port, and the second partition cavity are communicated.

[0011] In this possible implementation, the first valve port, the second valve port, the third valve port, and the fourth valve port all include an outer port and an inner port. The inner port of the fourth valve port is arranged on the inner bottom wall, and the second partition cavity is communicated with the fourth valve port. A part of the second partition cavity and the fourth valve port are arranged along the rotation axis of the valve core, so that the four-way valve includes three working modes. The flow channel on the valve core is simply arranged, which is convenient for manufacturing.

[0012] According to the first aspect, in a possible implementation, the outer wall of the valve body includes an outer bottom wall and an outer peripheral wall that are connected to each other, the outer bottom wall is arranged opposite to the inner bottom wall, and the outer port is arranged on the outer bottom wall.

[0013] In this possible implementation, the outer port is arranged on the bottom wall, so that it is convenient to connect the fluid pipeline with each valve port, which is conducive to improving the regularity of the pipeline connection.

[0014] According to the first aspect, in a possible implementation manner, the inner wall of the second partition chamber includes an arc-shaped inner wall, and the circle where the arc-shaped inner wall is located is coaxially arranged with the fourth valve port to reduce the risk of leakage.

[0015] According to the first aspect, in a possible implementation, the plurality of partition chambers include a first partition chamber, a second partition chamber, a third partition chamber and a fourth partition chamber, the first partition chamber and the second partition chamber are arranged along the axial direction of the valve core, and the first partition chamber, the third partition chamber and the fourth partition chamber are arranged along the circumferential direction of the valve core; when the four-way valve is in the first mode, the inner port of the first valve port, the No. 1 fourth valve port, and the first partition chamber are connected, and the second valve port, the No. 2 third valve port, and the second partition chamber are connected; when the four-way valve is in the second mode, the first valve port, the second valve port, and the third partition chamber are connected, and the No. 1 fourth valve port, the No. 1 third valve port, and the fourth partition chamber are connected; when the four-way valve is in the third mode, the No. 2 third valve port, the first valve port, and the first partition chamber are connected, and the No. 2 fourth valve port, the second valve port, and the second partition chamber are connected.

[0016] In this possible implementation, since the multiple partition chambers are arranged regularly, it is helpful to simplify the structure of the four-way valve and reduce the volume of the four-way valve. The simple structure of the four-way valve is also helpful to reduce the risk of leakage of the temperature control system.

[0017] According to the first aspect, in a possible implementation, the third valve port No. 1, the third valve port No. 2, the fourth valve port No. 1, and the fourth valve port No. 2 all include outer ports arranged away from the installation cavity, the outer port of the third valve port No. 1 and the outer port of the third valve port No. 2 are used to connect and communicate with the same fluid pipeline, and the outer port of the fourth valve port No. 1 and the outer port of the fourth valve port No. 2 are used to connect and communicate with the same fluid pipeline.

[0018] In a possible implementation of this type, the outer ports of the first third valve port and the second third valve port are connected and communicate with each other. When the inner port of one of the first third valve port and the second third valve port is blocked by the valve core, the inner port of the other one of the first third valve port and the second third valve port can still communicate with the corresponding partition cavity. The outer ports of the first fourth valve port and the second fourth valve port are connected and communicate with each other. When the inner port of one of the first fourth valve port and the second fourth valve port is blocked by the valve core, the inner port of the other one of the first fourth valve port and the second fourth valve port can still communicate with the corresponding partition cavity, so that the unblocked third valve port communicates with the fourth valve port. Connecting the outer ports of the first third valve port and the second third valve port through a fluid pipeline is simple and convenient. Connecting the outer ports of the first fourth valve port and the second fourth valve port through a fluid pipeline is simple and convenient.

[0019] According to the first aspect, in a possible implementation, the multiple partition cavities include a first partition cavity, a second partition cavity, a third partition cavity, a fourth partition cavity, a fifth partition cavity, and a sixth partition cavity. The first partition cavity and the second partition cavity are arranged axially along the valve core. The first partition cavity, the third partition cavity, the fourth partition cavity, a part of the fifth partition cavity, and a part of the sixth partition cavity are arranged circumferentially along the valve core. When the four-way valve is in the first mode, the first valve port, the second valve port, and the third partition cavity are connected and communicate with each other. The fourth valve port, the third valve port, and the fourth partition cavity are connected and communicate with each other. When the four-way valve is in the second mode, the first valve port, the fourth valve port, and the first partition cavity are connected and communicate with each other. The first second valve port, the third valve port, and the second partition cavity are connected and communicate with each other. When the four-way valve is in the third mode, the third valve port, the first valve port, and the fifth partition cavity are connected and communicate with each other. The second valve port, the fourth valve port, and the sixth partition cavity are connected and communicate with each other.

[0020] In a possible implementation of this type, a fifth partition cavity and a sixth partition cavity are added to the circumferential wall of the valve core, so that when the four-way valve is in the third mode at a specific position of the valve core relative to the valve body, the third valve port, the first valve port, and the fifth partition cavity are connected and communicate with each other. The second valve port, the fourth valve port, and the sixth partition cavity are connected and communicate with each other.

[0021] According to the first aspect, in a possible implementation, the first valve port and the fourth valve port are arranged in a first row, the second valve port and the third valve port are arranged in a second row, the first valve port and the second valve port are arranged in a first column, and the third valve port and the fourth valve port are arranged in a second column.

[0022] In a possible implementation of this type, since multiple valve ports are arranged regularly, it is beneficial to simplify the structure of the four-way valve and reduce the volume of the four-way valve. The simple structure of the four-way valve is also beneficial to reducing the leakage risk of the temperature control system.

[0023] According to the first aspect, in a possible implementation, the fifth partition cavity includes a first part and a second part that are connected and communicate with each other, and the first part and the second part are connected along the circumferential direction of the valve core. The first part is used to communicate with the first valve port, and the second part is used to communicate with the third valve port. The sixth partition cavity includes a third part, a fourth part, and a fifth part. The third part and the first part are arranged along the axial direction of the valve core, and the third part is used to communicate with the second valve port. The fourth part is located between the third part and the fifth part; the first part and the fifth part are arranged along the circumferential direction of the valve core; the fifth part is used to communicate with the fourth valve port.

[0024] In a possible implementation of this type, by setting the flow channels of the fifth partition cavity and the sixth partition cavity, while increasing the working modes of the four-way valve, the cross-setting of the partition cavities in the valve core is avoided.

[0025] According to the first aspect, in a possible implementation, the outer side surface of the valve body away from the installation cavity includes a plane, and the first valve port, the second valve port, the third valve port, and the fourth valve port all penetrate through the plane.

[0026] In a possible implementation of this type, the first valve port, the second valve port, the third valve port, and the fourth valve port all penetrate through the plane. In this way, it is convenient to connect the fluid pipelines to each valve port, which is beneficial to improving the regularity of pipeline connection.

[0027] In a second aspect, the present application further provides a temperature control system, which includes a heat exchanger, multiple fluid pipelines, and the four-way valve according to the first aspect. Each of the first valve port, the second valve port, the third valve port, and the fourth valve port of the four-way valve is connected to one of the fluid pipelines, and at least one of the multiple fluid pipelines is provided with a heat exchanger.

[0028] In a third aspect, the present application further provides a vehicle, which includes a battery pack and the temperature control system according to the second aspect, and the temperature control system is used to control the temperature of the battery pack.

[0029] In a fourth aspect, the present application further provides an energy storage system, which includes a battery pack and the temperature control system according to the second aspect, and the temperature control system is used to control the temperature of the battery pack. Description of the Drawings

[0030] Figure 1A topological schematic diagram of a functional system provided by an embodiment of the present application;

[0031] Figure 2 A structural schematic diagram of the valve body of a four-way valve provided by the first embodiment of the present application;

[0032] Figure 3 A structural schematic diagram of the valve core of a four-way valve provided by the first embodiment of the present application;

[0033] Figure 4 An arrangement schematic diagram of multiple valve ports on the valve body provided by the first embodiment of the present application;

[0034] Figure 5 A topological schematic diagram of the valve core provided by the first embodiment of the present application;

[0035] Figure 6 A topological schematic diagram of the four-way valve in the first mode provided by the first embodiment of the present application;

[0036] Figure 7 A topological schematic diagram of the four-way valve in the second mode provided by the first embodiment of the present application;

[0037] Figure 8 A topological schematic diagram of the four-way valve in the third mode provided by the first embodiment of the present application;

[0038] Figure 9 A three-dimensional sectional view of a partial structure of a four-way valve provided by the second embodiment of the present application;

[0039] Figure 10 A sectional schematic diagram of the four-way valve in the first mode provided by the second embodiment of the present application;

[0040] Figure 11 A sectional schematic diagram of the four-way valve in the second mode provided by the second embodiment of the present application;

[0041] Figure 12 A sectional schematic diagram of the four-way valve in the third mode provided by the second embodiment of the present application;

[0042] Figure 13 An arrangement schematic diagram of four valve ports of a valve body provided by the third embodiment of the present application;

[0043] Figure 14 A mating schematic diagram of the valve body and the valve core when the four-way valve is in the third mode provided by the third embodiment of the present application;

[0044] Figure 15 A topological schematic diagram of the four-way valve in the first mode provided by the third embodiment of the present application;

[0045] Figure 16Topological schematic diagram of the four-way valve provided in the third embodiment of the present application in the second mode;

[0046] Figure 17 Topological schematic diagram of the four-way valve provided in the third embodiment of the present application in the third mode. Detailed implementation manners

[0047] To facilitate the understanding of the temperature control system, vehicle, energy storage system, and multi-way valve provided in the embodiments of the present application, the following introduces their application scenarios. The temperature control system can specifically be a liquid cooling system, a heating system, a hydraulic system, etc. In short, the temperature control system includes multiple liquid pipelines, and there are liquid flow splitting and confluence between the multiple liquid pipelines, and pipelines for regulating the liquid flow are required. For example, the temperature control system of a vehicle or the temperature control system of an energy storage system can both adopt the temperature control system in the embodiments of the present application. Specifically, the temperature control system of a vehicle can be used to control the temperature of the temperature control system of the vehicle, and the temperature control system of the energy storage system can be used to control the temperature of the temperature control system of the energy storage system. In the prior art, it can be achieved by setting up a valve group formed by multiple three-way valves. However, this solution results in a more complex control process, more connection components, and a higher leakage risk. In addition, it will also cause the valve group of the temperature control system to be larger in volume and occupy more space.

[0048] Figure 1 Topological schematic diagram of a functional system provided in an embodiment of the present application. The functional system includes a temperature control system 100 and a battery pack. The temperature control system 100 is used to adjust the temperature of the battery pack. The battery pack includes a battery module 201 and a power module 203. The functional system can be an energy storage system or a vehicle. The vehicle can be a new energy vehicle or an ordinary vehicle. The battery module 201 is used to provide electrical energy. The power module 203 includes an inverter for converting between direct current and alternating current.

[0049] The temperature control system 100 includes a compressor 101, a throttle valve 102, a four-way valve, a pump, a heat exchanger, a fluid pipeline 106, and a heater 107. The number of heat exchangers is multiple, and the multiple heat exchangers include an evaporator 1051, a condenser 1052, a first cold plate 1053, and a second cold plate 1054. The pump includes a first pump 1041 and a second pump 1043. The four-way valve includes a first four-way valve 1031 and a second four-way valve 1033. The flow path of the temperature control system 100 includes a refrigerant flow path and a coolant flow path. The refrigerant can be freon. The coolant can be water or other liquids. The coolant flow path includes a first coolant flow path and a second coolant flow path. The compressor 101, the evaporator 1051, the throttle valve 102, and the condenser 1052 are connected through the fluid pipeline 106 to form a refrigerant flow path in which the refrigerant can be recycled. The evaporator 1051, the first four-way valve 1031, the first pump 1041, the first cold plate 1053, the heater 107, and the second four-way valve 1033 are connected through the fluid pipeline 106 to form a first coolant flow path in which the coolant can be recycled. The second four-way valve 1033, the evaporator 1051, the first four-way valve 1031, the second pump 1043, the first cold plate 1053, the heater 107, and the second four-way valve 1033 are connected through the fluid pipeline 106 to form a second coolant flow path in which the coolant can be recycled.

[0050] The compressor 101 is used to pressurize the refrigerant to drive the refrigerant to circulate in the refrigerant flow path. The throttle valve 102 is used to control the flow rate of the refrigerant in the refrigerant flow path. The evaporator 1051 and the condenser 1052 are heat exchangers for the refrigerant and the coolant. The radiator is a wind-liquid heat exchanger for heat exchange between the coolant and the environment. The first pump 1041 is used to provide power for the circulation of the coolant in the first coolant flow path. The second pump 1043 is used to provide power for the circulation of the coolant in the second coolant flow path. The first cold plate 1053 is used for heat exchange with the battery module 201. The second cold plate 1054 is used for heat exchange with the power module 203.

[0051] The four-way valve is a switching hub for the coolant flow path mode. Different coolant flow path modes are realized by switching the working positions of the four-way valve. Applying a four-way valve with three working modes in the temperature control system is beneficial to reducing the number of three-way valves used, increasing the flow path modes of the temperature control system, and improving the control convenience of the temperature control system.

[0052] It can be understood that Figure 1 the functional system in, the structure of the temperature control system 100 is only exemplary. The present application does not limit the number and installation positions of the heat exchangers, and the present application does not limit the number and installation positions of the four-way valves. The temperature control system 100 includes a four-way valve, a heat exchanger, and a fluid pipeline 106. The four-way valve is connected to the heat exchanger through a fluid pipe body. The temperature control system 100 is not limited to regulating the temperature of the battery pack, and it can also be used for temperature control of other devices.

[0053] A conventional four-way valve is provided with four valve ports. The valve ports of the four-way valve are used to communicate with external pipelines. By changing the rotational position of the actuator driving the valve core relative to the valve body, two different working modes of the four-way valve can be realized, and then an actuator controls a four-way valve to achieve two different thermal management modes. However, the number of thermal management modes required by the temperature control system is increasing, and a four-way valve with two working modes is difficult to meet the requirements.

[0054] Based on this, the present application provides a four-way valve and a temperature control system. The four-way valve includes a valve body and a valve core. The valve body includes an installation cavity, a first valve port, a second valve port, a third valve port, and a fourth valve port. The first valve port, the second valve port, the third valve port, and the fourth valve port all penetrate the inner side surface of the installation cavity and the outer side surface of the valve body for fluid circulation. The valve core is received in the installation cavity and can rotate relative to the valve body. The circumferential side of the valve core includes a plurality of partition cavities. The working modes of the four-way valve include a first mode, a second mode, and a third mode. By rotating the valve core relative to the valve body, the four-way valve is switched between the first mode, the second mode, and the third mode. When the four-way valve is in the first mode, the first valve port and the second valve port are connected through at least one partition cavity, and the third valve port and the fourth valve port are connected through at least one partition cavity. When the four-way valve is in the second mode, the first valve port and the fourth valve port are connected through at least one partition cavity, and the second valve port and the third valve port are connected through at least one partition cavity. When the four-way valve is in the third mode, the first valve port and the third valve port are connected through at least one partition cavity, and the second valve port and the fourth valve port are connected through at least one partition cavity.

[0055] Figure 2 FIG. [X] is a schematic structural view of the valve body of the four-way valve provided in the first embodiment of the present application. Figure 3 FIG. [X] is a schematic structural view of the valve core of the four-way valve provided in the first embodiment of the present application. Figure 2 The shown valve body 20 and Figure 3 The shown valve core 40 are assembled to form the main body part of the multi-way valve in the embodiment of the present application. The four-way valve includes a valve body 20 (as shown in Figure 2 FIG. [X]) and a valve core 40 (as shown in Figure 3 FIG. [X]). The valve core 40 is rotatably received in the valve body 20. The circumferential wall of the valve core 40 includes a plurality of partition cavities. The four-way valve further includes an actuator for driving the valve core 40 to move relative to the valve body 20.

[0056] Please refer to Figure 2, the valve body 20 provided by the first embodiment of the present application includes an installation cavity 22 and a plurality of valve ports 24 communicated with the installation cavity 22. The installation cavity 22 is used to accommodate the valve core 40. The installation cavity 22 can be a cylindrical installation cavity 22, that is, the inner side surface of the installation cavity 22 is an inner cylindrical surface. The valve core 40 can be a cylindrical valve core 40, and the valve core 40 is coaxially installed with the installation cavity 22. The valve core 40 is installed in the installation cavity 22 of the valve body 20 and can rotate circumferentially in the installation cavity 22.

[0057] Each valve port 24 includes an inner side port 2401 and an outer side port 2403. The inner side port 2401 penetrates the inner side surface of the installation cavity 22. The outer side port 2403 penetrates the outer side surface of the valve body 20 and is used to connect the fluid pipeline 106. Since the valve core 40 can rotate relative to the valve body 20, each inner side port 2401 can be opened or closed (blocked) by the valve core 40. In the embodiment of the present application, by adjusting the relative position relationship between the valve core 40 and the valve body 20, the separation cavity can be communicated with the inner side ports 2401 of different valve ports 24 to change the connection relationship of the fluid pipelines communicated with the four-way valve. When the valve core 40 rotates to a set position, at least two inner side ports 2401 are communicated with a separation cavity; by controlling the valve core 40 to rotate to different positions, different inner side ports 2401 can be made to be communicated to change the connection scheme of the four-way valve. Only by installing one valve core 40 in the valve body 20 of the four-way valve can the adjustment of the liquid path mode communicated with the four-way valve be realized. This scheme is beneficial to simplifying the structure of the four-way valve and reducing the volume of the four-way valve. The structure of the four-way valve is simple, and it is also beneficial to reducing the leakage risk of the temperature control system 100.

[0058] Each valve port 24 can extend linearly, bendedly or curvedly. When the valve port 24 extends linearly, the inner side port 2401 and the outer side port 2403 of the valve port 24 can be coaxially arranged. The present application does not limit the positional relationship or connection mode between the inner side port 2401 and the outer side port 2403 of the valve port 24. The arrangement of the outer side ports 2403 of the valve port 24 is not restricted by the arrangement of the inner side ports 2401, so the arrangement of the outer ports can be set according to the actual application scenario to simplify the pipeline setting of the temperature control system 100.

[0059] The plurality of valve ports 24 include a first valve port 241, a second valve port 242, a third valve port 243, and a fourth valve port 244. The first valve port 241, the second valve port 242, the third valve port 243, and the fourth valve port 244 all penetrate the inner side surface of the installation cavity 22 and the outer side surface of the valve body 20. Each of the first valve port 241, the second valve port 242, the third valve port 243, and the fourth valve port 244 is connected to a corresponding fluid pipeline 106 for fluid circulation.

[0060] In some embodiments of the present application, the outer side surface of the valve body 20 includes a plane, and the outer port 2403 of the first valve port 241, the outer port 2403 of the second valve port 242, the outer port 2403 of the third valve port 243, and the outer port 2403 of the fourth valve port 244 are all located on the plane. In other words, the first valve port 241, the second valve port 242, the third valve port 243, and the fourth valve port 244 all pass through the plane. In this way, it is convenient to connect the fluid pipeline 106 with each valve port, which is beneficial to improve the regularity of the pipeline connection. It can be understood that the present application does not limit the structure of the outer side surface of the valve body 20. For example, the outer side surface may not include a plane and may be located on a curved surface, or the outer port 2403 of the first valve port 241, the outer port 2403 of the second valve port 242, the outer port 2403 of the third valve port 243, and the outer port 2403 of the fourth valve port 244. The outer port 2403 of the first valve port 241, the outer port 2403 of the second valve port 242, the outer port 2403 of the third valve port 243, and the outer port 2403 of the fourth valve port 244 may be located on different surfaces.

[0061] See also Figure 4 , Figure 4 This is a schematic diagram of the arrangement of multiple valve ports on the valve body provided in the first embodiment of the present application. The first valve port 241 is Figure 4 The second valve port 242 is marked with an Arabic numeral "1" in Figure 4 The Arabic numeral "2" indicates the third valve port 243. Figure 4 The fourth valve port 244 is marked with the Arabic numeral "3" in Figure 4 The number of the third valve ports 243 is two, and the two third valve ports 243 include a first third valve port 2431 and a second third valve port 2433. The number of the fourth valve ports 244 is two, and the two fourth valve ports 244 include a first fourth valve port 2441 and a second fourth valve port 2443. The outer port 2403 of the second third valve port 2433 and the outer port 2403 of the first third valve port 2431 are connected and communicated through a pipeline to be connected to the same fluid pipeline 106. The outer port 2403 of the first fourth valve port 2441 and the outer port 2403 of the second fourth valve port 2443 are connected and communicated through a pipeline to be connected to the same fluid pipeline 106.

[0062] The six valve ports 24 are arranged in an array. The second third valve port 2433, the first valve port 241, and the first fourth valve port 2441 are arranged in a first row in sequence along the first direction. The second fourth valve port 2443, the second valve port 242, and the first third valve port 2431 are arranged in a second row in sequence along the first direction. The second third valve port 2433 and the second fourth valve port 2443 are arranged in a first column along the second direction. The first valve port 241 and the second valve port 242 are arranged in a second column along the second direction. The first fourth valve port 2441 and the first third valve port 2431 are arranged in a first column along the second direction. In this way, it is convenient to cooperate with the valve core 40.

[0063] It can be understood that the number of the first valve ports 241 is not limited to one, and the number of the first valve ports 241 can also be at least two. The number of the second valve ports 242 is not limited to one, and the number of the second valve ports 242 can also be at least two. The number of the third valve ports 243 is not limited to two, and the number of the third valve ports 243 can also be multiple. The number of the fourth valve ports 244 is not limited to two, and the number of the fourth valve ports 244 can also be multiple. The present application does not limit the arrangement manner of the multiple valve ports 24.

[0064] Please refer to Figure 3 , the multiple partition cavities include a first partition cavity 421, a second partition cavity 422, a third partition cavity 423, and a fourth partition cavity 424. The first partition cavity 421 and the second partition cavity 422 are stacked along the axial direction C of the valve core 40. The first partition cavity 421, the third partition cavity 423, and the fourth partition cavity 424 are arranged along the circumferential direction of the valve core 40. In some embodiments of the present application, in the circumferential direction of the valve core 40, the length of the first partition cavity 421 is equal to the length of the second partition cavity 422, the length of the first partition cavity 421 is greater than the length of the third partition cavity 423, and the length of the third partition cavity 423 is equal to the length of the fourth partition cavity 424. It can be understood that the valve core 40 can be a six-equal-part structure.

[0065] Please continue to refer to Figure 3 , the valve core 40 further includes multiple partition plates 43 to form multiple partition cavities of the valve core 40. The multiple partition plates 43 include a first partition plate 431 and a second partition plate 433. Among them, the first partition plate 431 is perpendicular to the axial direction C of the valve core 40, and the second partition plate 433 is parallel to the axial direction C of the valve core 40. The multiple partition plates form multiple partition cavities. In a specific embodiment, the above-mentioned first partition plate 431 and the second partition plate 433 can be arranged according to requirements to form different partition cavity layouts.

[0066] Please refer to Figure 5 , Figure 5 is a topological schematic diagram of the valve core provided by the first embodiment of the present application. The peripheral wall of the valve core 40 further includes a solid wall 45 for blocking the inner port 2401. Figure 5The symbol "×" shown in the figure is the solid wall 45 of the valve core 40.

[0067] The working modes of the four-way valve include a first mode, a second mode, and a third mode. By rotating the valve core 40 relative to the valve body 20, the four-way valve is switched between the first mode, the second mode, and the third mode.

[0068] When the four-way valve is in the first mode, please refer to Figure 6 , Figure 6 which is a topological schematic diagram of the four-way valve in the first mode provided by the first embodiment of the present application. The inner ports 2401 of the second third valve port 2433 and the second fourth valve port 2443 are blocked by the solid wall 45 of the valve core 40 and thus closed. The inner port 2401 of the first valve port 241 is connected to the inner port 2401 of the first fourth valve port 2441 through the first separation cavity 421, and the inner port 2401 of the second valve port 242 is connected to the inner port 2401 of the first third valve port 2431 through the second separation cavity 422 formed by the valve core 40.

[0069] When the four-way valve is in the second mode, please refer to Figure 7 , Figure 7 which is a topological schematic diagram of the four-way valve in the second mode provided by the first embodiment of the present application. The inner ports 2401 of the second third valve port 2433 and the second fourth valve port 2443 are blocked by the solid wall 45 of the valve core 40 and thus closed. The inner port 2401 of the first valve port 241 is connected to the inner port 2401 of the second valve port 242 through the third separation cavity 423, and the inner port 2401 of the first fourth valve port 2441 is connected to the inner port 2401 of the first third valve port 2431 through the fourth separation cavity 424.

[0070] When the four-way valve is in the third mode, please refer to Figure 8 , Figure 8 which is a topological schematic diagram of the four-way valve in the third mode provided by the first embodiment of the present application. The inner ports 2401 of the first fourth valve port 2441 and the first third valve port 2431 are blocked by the solid wall 45 of the valve core 40 and thus closed. The inner port 2401 of the first valve port 241 is connected to the inner port 2401 of the second third valve port 2433 through the first separation cavity 421, and the inner port 2401 of the second fourth valve port 2443 is connected to the inner port 2401 of the second valve port 242 through the second separation cavity 422.

[0071] An additional second third valve port 2433 communicating with the first third valve port 2431 and an additional second fourth valve port 2443 communicating with the first fourth valve port 2441 are provided on the valve body 20. By the movement of the valve core 40 relative to the valve body 20, the four-way valve can be switched between three working modes, increasing the flow path modes of the temperature control system 100 and improving the control flexibility of the temperature control system 100. In addition, since only the valve ports 24 need to be added to the valve body 20, there is no need to provide a complex flow channel structure on the valve core 40, reducing the manufacturing difficulty and cost of the valve core 40.

[0072] It can be understood that the structure of the valve core 40, the number and arrangement form of the partition cavities on the valve core 40 are not limited in this application. When the four-way valve is in the first mode, the inner ports 2401 of the second third valve port 2433 and the second fourth valve port 2443 are blocked by the solid wall 45 of the valve core 40 and thus closed. The inner port 2401 of the first valve port 241 is communicated with the inner port 2401 of the first fourth valve port 2441 through at least one partition cavity, and the inner port 2401 of the second valve port 242 is communicated with the inner port 2401 of the first third valve port 2431 through at least one partition cavity of the valve core 40.

[0073] When the four-way valve is in the second mode, the inner ports 2401 of the second third valve port 2433 and the second fourth valve port 2443 are blocked by the solid wall 45 of the valve core 40 and thus closed. The inner port 2401 of the first valve port 241 is communicated with the inner port 2401 of the second valve port 242 through at least one partition cavity, and the inner port 2401 of the first fourth valve port 2441 is communicated with the inner port 2401 of the first third valve port 2431 through at least one partition cavity.

[0074] When the four-way valve is in the third mode, please refer to Figure 8 , the inner ports 2401 of the first fourth valve port 2441 and the first third valve port 2431 are blocked by the solid wall 45 of the valve core 40 and closed. The inner port 2401 of the first valve port 241 is communicated with the inner port 2401 of the second third valve port 2433 through at least one partition cavity, and the inner port 2401 of the second fourth valve port 2443 is communicated with the inner port 2401 of the second valve port 242 through at least one partition cavity.

[0075] The four-way valve provided by this application can connect any two of the first valve port 241, the second valve port 242, the third valve port 243, and the fourth valve port 244 through at least one partition cavity of the valve core 40 by rotating the valve core 40 relative to the valve body 20, enabling the four-way valve to switch between the first mode, the second mode, and the third mode. Compared with conventional four-way valves, the number of operating modes of the four-way valve is increased. In this way, it is beneficial to reduce the number of three-way valves used in the temperature control system 100, reduce the occupied volume of the valves in the temperature control system 100, and increase the flow path modes and control flexibility of the temperature control system 100.

[0076] Figure 9 FIG. 4 is a perspective cross-sectional view of a partial structure of a four-way valve provided in the second embodiment of the present application. The four-way valve includes a valve body 20 and a valve core 40. The valve core 40 is rotatably received in the valve body 20. The valve core 40 can rotate relative to the valve body 20 about the rotation axis. The outer wall of the valve body 20 includes an outer bottom wall and an outer bottom wall connected and arranged. The inner wall of the installation cavity includes an inner peripheral wall and an inner bottom wall connected and arranged. The inner bottom wall is perpendicular to the axial direction of the valve core 40. The inner bottom wall and the outer bottom wall are arranged along the rotation axis. The first valve port 241, the second valve port 242, and the third valve port 243 can be non-linear holes. The outer side ports of the first valve port 241, the second valve port 242, the third valve port 243, and the fourth valve port 244 are all arranged on the outer bottom wall of the valve body 20. In this way, it is convenient to connect the fluid pipelines to each valve port, which is beneficial to improving the regularity of pipeline connection. The inner side ports of the first valve port 241, the second valve port 242, the third valve port 243, and the fourth valve port 244 penetrate through the inner wall of the installation cavity. The inner side ports of the first valve port 241, the second valve port 242, and the third valve port 243 are arranged along the circumferential direction of the valve body 20. The fourth valve port 244 is located on the rotation axis of the valve core 40.

[0077] The valve core 40 is provided with a first partition cavity 421 and a second partition cavity 422. The first partition cavity 421 and the second partition cavity 422 are located on the circumferential wall of the valve core 40 and are separated by a solid wall 45. A part of the second partition cavity 422 is located on the rotation axis of the valve core 40. The second partition cavity 422 penetrates through the valve core 40 and faces the inner bottom wall of the installation cavity 22. The second partition cavity 422 is communicated with the fourth valve port 244. The inner wall of the second partition cavity 422 includes an arc-shaped inner wall 4220. The circle where the arc-shaped inner wall 4220 is located is coaxially arranged with the fourth valve port 244 to reduce the risk of leakage of the four-way valve. The connection between the inner wall of the second partition cavity 422 and the inner wall of the fourth valve port 244 is sealed to prevent fluid leakage. When the valve core 40 rotates relative to the valve body 20, the second partition cavity 422 and the fourth valve port 244 remain connected.

[0078] The working modes of the four-way valve include a first mode, a second mode, and a third mode. By rotating the valve core 40 relative to the valve body 20, the four-way valve can be switched between the first mode, the second mode, and the third mode. When the four-way valve is in the first mode, as Figure 10 shown, Figure 10 FIG. 4 is a schematic cross-sectional view of the four-way valve in the first mode provided by the second embodiment of the present application. The first valve port 241 is communicated with the second valve port 242 through the first partition cavity 421, and the third valve port 243 is communicated with the second partition cavity 422. Since the second partition cavity 422 is communicated with the fourth valve port 244, the third valve port 243 is communicated with the fourth valve port 244. When the four-way valve is in the second mode, as Figure 11 shown, Figure 11 FIG. 5 is a schematic cross-sectional view of the four-way valve in the second mode provided by the second embodiment of the present application. The first valve port 241 is communicated with the second partition cavity 422. Since the second partition cavity 422 is communicated with the fourth valve port 244, the first valve port 241 is communicated with the fourth valve port 244. The second valve port 242 is communicated with the third valve port 243 through the first partition cavity 421. When the four-way valve is in the third mode, as Figure 12 shown, Figure 12 FIG. 6 is a schematic cross-sectional view of the four-way valve in the third mode provided by the second embodiment of the present application. The first valve port 241 is communicated with the third valve port 243 through the first partition cavity 421, and the second valve port 242 is communicated with the second partition cavity 422. Since the second partition cavity 422 is communicated with the fourth valve port 244, the second valve port 242 is communicated with the fourth valve port 244. The second valve port 242 is communicated with the third valve port 243 through the first partition cavity 421.

[0079] The first valve port 241, the second valve port 242, the third valve port 243, and the fourth valve port 244 all include an inner port 2401 and an outer port 2403. The inner port 2401 of the fourth valve port 244 is arranged on the inner bottom wall. The second partition cavity 422 is communicated with the fourth valve port 244, and a part of the second partition cavity 422 and the fourth valve port 24 are arranged along the rotation axis of the valve core 40, so that the four-way valve includes three working modes. The flow channel on the valve core 40 is simple in structure and convenient to manufacture.

[0080] It can be understood that when the first valve port 241, the second valve port 242, and the third valve port 243 are linear holes, the outer ports of the first valve port 241, the second valve port 242, and the third valve port 243 can be arranged on the outer peripheral wall of the valve body 20, and the outer port of the fourth valve port 244 can be arranged on the outer bottom wall. The inner ports 2401 of the first valve port 241, the second valve port 242, and the third valve port 243 all penetrate through the inner peripheral wall of the installation cavity 22. The inner port 2401 of the fourth valve port 244 penetrates through the inner bottom wall of the installation cavity 22.

[0081] Please refer to Figure 13, Figure 13 A schematic diagram of the arrangement of four valve ports of a valve body provided for the third embodiment of the present application. The number of valve ports on the four-way valve is four. The valve body 20 includes an installation cavity 22, a first valve port 241, a second valve port 242, a third valve port 243, and a fourth valve port 244. The first valve port 241, the second valve port 242, the third valve port 243, and the fourth valve port 244 all penetrate the inner side surface of the installation cavity 22 and the outer side surface of the valve body 20 for fluid circulation. The first valve port 241, the second valve port 242, the third valve port 243, and the fourth valve port 244 are arranged in an array. The first valve port 241 and the fourth valve port 244 are arranged in the first row, the second valve port 242 and the third valve port 243 are arranged in the second row, the first valve port 241 and the second valve port 242 are arranged in the first column, and the third valve port 243 and the fourth valve port 244 are arranged in the second column. The first valve port 241 and the third valve port 243 are arranged diagonally. The second valve port 242 and the fourth valve port 244 are arranged diagonally.

[0082] Please refer to Figure 14 as shown in Figure 14 A schematic diagram of the cooperation between the valve body and the valve core when the four-way valve is in the third mode provided for the third embodiment of the present application. The valve core 40 further includes a fifth partition cavity 425 and a sixth partition cavity 426. The fifth partition cavity 425 is used to connect the first valve port 241 and the third valve port 243, and the sixth partition cavity 426 is used to connect the second valve port 242 and the fourth valve port 244.

[0083] When the four-way valve is in the third mode, the third valve port 243, the first valve port 241, and the fifth partition cavity 425 are connected and communicated, and the fourth valve port 244, the second valve port 242, and the sixth partition cavity 426 are connected and communicated.

[0084] As Figure 14 shown in Figure 14 Part of the second valve port 242 is blocked by the solid wall 45 of the valve core 40. Part of the second valve port 242 is communicated with the fourth valve port 244 through the sixth partition cavity 426. For example, half of the second valve port 242 is blocked by the solid wall 45 of the valve core 40, and half of the second valve port 242 is communicated with the fourth valve port 244 through the sixth partition cavity 426. Part of the third valve port 243 is blocked by the solid wall 45 of the valve core 40. Part of the third valve port 243 is communicated with the first valve port 241 through the fifth partition cavity 425.

[0085] A part of the fifth partition cavity 425 and a part of the sixth partition cavity 426 are arranged in the axial direction C of the valve core 40, and a part of the fifth partition cavity 425 and a part of the sixth partition cavity 426 are arranged in the circumferential direction of the valve core 40. The fifth partition cavity 425 includes a first part 4251 and a second part 4253 that are connected and communicated.

[0086] A part of the fifth partition chamber 425 and a part of the sixth partition chamber 426 are arranged axially on the valve core 40 along C, and a part of the fifth partition chamber 425 and a part of the sixth partition chamber 426 are arranged circumferentially on the valve core 40. The fifth partition chamber 425 includes a first part 4251 and a second part 4253 that are connected and communicate with each other. The first part 4251 and the second part 4253 are connected along the circumferential direction of the valve core 40. The first part 4251 is used to communicate with the first valve port 241, and the second part 4253 is used to communicate with the third valve port 243.

[0087] The sixth partition chamber 426 includes a third part 4261, a fourth part 4263, and a fifth part 4265. The third part 4261 and the first part 4251 are arranged axially on the valve core 40 along C, and the third part 4261 is used to communicate with the second valve port 242. The fourth part 4263 is located between the third part 4261 and the fifth part 4265. The fourth part 4263 is generally L-shaped. The first part 4251 and the fifth part 4265 are arranged circumferentially on the valve core 40. The fifth part 4265 is used to communicate with the fourth valve port 244.

[0088] It can be understood that the present application does not limit the structure of the fifth partition chamber 425, and the present application does not limit the structure of the sixth partition chamber 426. For example, the fifth partition chamber 425 is generally L-shaped, the sixth partition chamber 426 is generally L-shaped, and it is only necessary that the fifth partition chamber 425 can communicate the first valve port 241 and the third valve port 243, and it is only necessary that the sixth partition chamber 426 can communicate the second valve port 242 and the fourth valve port 244.

[0089] When the four-way valve is in the first mode, please refer to Figure 15 , Figure 15 which is the topological schematic diagram of the four-way valve in the first mode provided by the third embodiment of the present application. The first valve port 241, the first fourth valve port 2441, and the first partition chamber 421 are connected and communicate with each other; the second valve port 242, the third valve port 243, and the second partition chamber 422 are connected and communicate with each other.

[0090] When the four-way valve is in the second mode, please refer to Figure 16 , Figure 16 which is the topological schematic diagram of the four-way valve in the second mode provided by the third embodiment of the present application. The first valve port 241, the second valve port 242, and the third partition chamber 423 are connected and communicate with each other; the fourth valve port 244, the third valve port 243, and the fourth partition chamber 424 are connected and communicate with each other.

[0091] When the four-way valve is in the third mode, please refer to Figure 17 , Figure 17Topological schematic diagram of the four-way valve provided in the third embodiment of the present application in the third mode. The third valve port 243, the first valve port 241, and the fifth partition cavity 425 are connected and communicated. The fourth valve port 244, the second valve port 242, and the sixth partition cavity 426 are connected and communicated.

[0092] It can be understood that, without conflict or contradiction, the first embodiment, the second embodiment, and the third embodiment of the present application can be combined with each other.

[0093] It should be understood that expressions such as "including" and "may include" that can be used in the present application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In the present application, terms such as "including" and / or "having" can be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or a combination thereof, but cannot be interpreted as excluding the existence or the possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or a combination thereof.

[0094] In addition, in the present application, the expression "and / or" includes any and all combinations of the associated listed words. For example, the expression "A and / or B" can include A, can include B, or can include both A and B.

[0095] In the present application, expressions including ordinal numbers such as "first" and "second" can modify each element. However, such elements are not limited by the above expressions. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used to distinguish one element from other elements. For example, the first user device and the second user device indicate different user devices, although both the first user device and the second user device are user devices. Similarly, without departing from the scope of the present application, the first element can be referred to as the second element, and similarly, the second element can also be referred to as the first element.

[0096] When a component is referred to as being "connected" or "accessed" to other components, it should be understood that: the component is not only directly connected to or accessed to other components, but there may also be another component between the component and other components. On the other hand, when a component is referred to as being "directly connected" or "directly accessed" to other components, it should be understood that there is no component between them.

[0097] As described above, only the specific embodiments of the present application are provided, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application can easily think of changes or substitutions, which should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A four-way valve is applied to a temperature control system. It is characterized in that the four-way valve includes a valve body and a valve core. The valve body includes an installation cavity, a first valve port, a second valve port, a third valve port and a fourth valve port. The first valve port, the second valve port, the third valve port and the fourth valve port all penetrate through the inner side surface of the installation cavity and the outer side surface of the valve body for fluid circulation. The valve core is received in the installation cavity and can rotate relative to the valve body. The circumferential side of the valve core includes a plurality of partition cavities. The working modes of the four-way valve include a first mode, a second mode and a third mode. By rotating the valve core relative to the valve body, the four-way valve is switched among the first mode, the second mode and the third mode. When the four-way valve is in the first mode, the first valve port and the second valve port are connected through at least one of the partition cavities, and the third valve port and the fourth valve port are connected through at least one of the partition cavities. When the four-way valve is in the second mode, the first valve port and the fourth valve port are connected through at least one of the partition cavities, and the second valve port and the third valve port are connected through at least one of the partition cavities. When the four-way valve is in the third mode, the first valve port and the third valve port are connected through at least one of the partition cavities, and the second valve port and the fourth valve port are connected through at least one of the partition cavities.

2. The four-way valve according to claim 1, It is characterized in that the third valve port includes a first third valve port and a second third valve port. The fourth valve port includes a first fourth valve port and a second fourth valve port. The first third valve port is connected to the second third valve port, and the first fourth valve port is connected to the second fourth valve port. The first valve port, the second valve port, the first third valve port, the second third valve port, the first fourth valve port and the second fourth valve port all include inner ports facing the installation cavity. When the four-way valve is in the first mode, the inner ports of the second third valve port and the second fourth valve port are closed by the valve core. The inner port of the first valve port and the inner port of the first fourth valve port are connected through at least one of the partition cavities, and the inner port of the second valve port and the inner port of the first third valve port are connected through at least one of the partition cavities. When the four-way valve is in the second mode, the inner ports of the second third valve port and the second fourth valve port are closed by the valve core. The inner port of the first valve port and the inner port of the second valve port are connected through at least one of the partition cavities, and the inner port of the first fourth valve port and the inner port of the first third valve port are connected through at least one of the partition cavities. When the four-way valve is in the third mode, the inner ports of the first fourth valve port and the first third valve port are closed by the valve core. The inner port of the first valve port and the inner port of the second third valve port are communicated through at least one of the partition chambers. The inner port of the second fourth valve port and the inner port of the second valve port are communicated through at least one of the partition chambers.

3. The four-way valve according to claim 2, wherein, the first valve port, the second valve port, the first third valve port, the second third valve port, the first fourth valve port, and the second fourth valve port are arranged in an array. The second third valve port, the first valve port, and the first fourth valve port are arranged in the first row in sequence. The second fourth valve port, the second valve port, and the second third valve port are arranged in the second row in sequence.

4. The four-way valve according to claim 3, wherein, the multiple partition chambers include a first partition chamber, a second partition chamber, a third partition chamber, and a fourth partition chamber. The first partition chamber and the second partition chamber are arranged along the axial direction of the valve core. The first partition chamber, the third partition chamber, and the fourth partition chamber are arranged along the circumferential direction of the valve core; when the four-way valve is in the first mode, the inner port of the first valve port, the first fourth valve port, and the first partition chamber are communicated. The second valve port, the second third valve port, and the second partition chamber are communicated; when the four-way valve is in the second mode, the first valve port, the second valve port, and the third partition chamber are communicated. The first fourth valve port, the first third valve port, and the fourth partition chamber are communicated; when the four-way valve is in the third mode, the second third valve port, the first valve port, and the first partition chamber are communicated. The second fourth valve port, the second valve port, and the second partition chamber are communicated.

5. The four-way valve according to claim 2, wherein, the first third valve port, the second third valve port, the first fourth valve port, and the second fourth valve port all include outer ports facing away from the installation cavity. The outer ports of the first third valve port and the second third valve port are used to be connected and communicated with the same fluid pipeline. The outer ports of the first fourth valve port and the second fourth valve port are used to be connected and communicated with the same fluid pipeline.

6. The four-way valve according to claim 1, wherein, the inner wall of the installation cavity includes an inner peripheral wall and an inner bottom wall which are connected. The inner bottom wall is perpendicular to the axial direction of the valve core. The first valve port, the second valve port, the third valve port, and the fourth valve port all include outer ports and inner ports. The inner ports of the first valve port, the second valve port, and the third valve port are all arranged on the inner peripheral wall. The inner port of the fourth valve port is arranged on the inner bottom wall. The outer ports are all arranged on the outer wall of the valve body; The multiple separation cavities include a first separation cavity and a second separation cavity. The first separation cavity and the second separation cavity are arranged circumferentially along the valve core. The second separation cavity penetrates the bottom wall of the valve core facing the inner bottom wall. The second separation cavity communicates with the fourth valve port. A part of the second separation cavity and the fourth valve port are arranged along the rotation axis of the valve core rotating around the valve body. When the four-way valve is in the first mode, the first valve port, the second valve port, and the first separation cavity are connected and communicated. The fourth valve port, the third valve port, and the second separation cavity are connected and communicated. When the four-way valve is in the second mode, the first valve port, the fourth valve port, and the second separation cavity are connected and communicated. The second valve port, the third valve port, and the first separation cavity are connected and communicated. When the four-way valve is in the third mode, the third valve port, the first valve port, and the first separation cavity are connected and communicated. The second valve port, the fourth valve port, and the second separation cavity are connected and communicated.

7. The four-way valve according to claim 6, wherein, the outer wall of the valve body includes an outer bottom wall and an outer peripheral wall which are connected. The outer bottom wall and the inner bottom wall are arranged opposite to each other. The outer side port is arranged on the outer bottom wall.

8. The four-way valve according to claim 6, wherein, the inner wall of the second separation cavity includes an arc-shaped inner wall. The circle where the arc-shaped inner wall is located is coaxially arranged with the fourth valve port.

9. The four-way valve according to any one of claims 1-8, wherein, the outer side surface of the valve body away from the installation cavity includes a plane. The first valve port, the second valve port, the third valve port, and the fourth valve port all penetrate the plane.

10. A temperature control system, wherein, the temperature control system includes a heat exchanger, multiple fluid pipelines, and the four-way valve according to any one of claims 1-9. Each of the first valve port, the second valve port, the third valve port, and the fourth valve port of the four-way valve is connected to one of the fluid pipelines. At least one of the multiple fluid pipelines is provided with a heat exchanger.

11. An energy storage system, wherein, the energy storage system includes a battery pack and the temperature control system according to claim 10. The temperature control system is used to control the temperature of the battery pack.

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