Thermal management device

Abstract

A heat management device includes a flow channel plate, a first multi-way valve and a heat exchanger. The heat exchanger is fixedly connected with the flow channel plate. The first multi-way valve includes a first valve core assembly. The first multi-way valve has at least three valve port channels. The first valve core assembly can control the opening and closing of the at least three valve port channels. The flow channel plate has at least three flow channels. The flow channels can be used for circulating refrigerant. The flow channels can be in communication with the valve port channels. The flow channel plate has a first assembly cavity. Part of the first multi-way valve is located in the first assembly cavity. The first multi-way valve is directly connected with the cavity wall of the first assembly cavity. In the present application, the first multi-way valve is directly installed on the flow channel plate. The number of pipeline connections and welding points is reduced. Thus, the risk of refrigerant leakage during operation of the heat management device is reduced.

Description

Technical Field

[0001] This application relates to the field of thermal management technology, and more particularly to a thermal management device. Background Technology

[0002] In related technologies, a thermal management device includes a flow channel plate, a first multi-way valve, and a heat exchanger. The heat exchanger is fixedly connected to the flow channel plate. The first multi-way valve includes a first valve core assembly and has at least three valve port channels. The first valve core assembly can control the opening and closing of at least three valve port channels. The flow channel plate has at least three flow channels that can be used to flow refrigerant and can communicate with the valve port channels.

[0003] The first multi-way valve is fixedly connected to the flow channel plate through pipelines. It is not only large in size, but also has many pipelines and welding points, which makes the risk of refrigerant leakage relatively high when the thermal management device is working. Summary of the Invention

[0004] The following technical solution is adopted in this application:

[0005] A thermal management device includes a flow channel plate, a first multi-way valve, and a heat exchanger. The heat exchanger is fixedly connected to the flow channel plate. The first multi-way valve includes a first valve core assembly and has at least three valve port channels. The first valve core assembly is capable of controlling the opening and closing of at least three valve port channels. The flow channel plate has at least three flow channels that can be used to flow refrigerant and can communicate with the valve port channels.

[0006] The flow channel plate has a first assembly cavity, a portion of which is located in the first assembly cavity, and the first multi-way valve is directly connected to the cavity wall of the first assembly cavity.

[0007] In this application, the flow channel plate has a first assembly cavity, a first multi-way valve is partially located in the first assembly cavity, the first multi-way valve is directly connected to the cavity wall of the first assembly cavity, and the first multi-way valve is directly installed on the flow channel plate, which reduces the number of pipe connections and welding points, thereby reducing the risk of refrigerant leakage when the thermal management device is working. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural schematic diagram of the thermal management device of this application;

[0009] Figure 2 yes Figure 1 A three-dimensional structural schematic diagram of the thermal management device from another angle;

[0010] Figure 3 yes Figure 1 An exploded view of a portion of the thermal management device structure is shown below;

[0011] Figure 4 yes Figure 1 A three-dimensional structural diagram of the flow channel plate, the first filter housing, and the second filter housing in the thermal management device shown.

[0012] Figure 5 yes Figure 1 A schematic cross-sectional view of the thermal management device shown;

[0013] Figure 6 yes Figure 1 The diagram shows a second cross-sectional view of the thermal management device.

[0014] Figure 7 yes Figure 1 The diagram shows a third cross-sectional view of the thermal management device.

[0015] Figure 8 yes Figure 1 The diagram shows a fourth cross-sectional view of the thermal management device.

[0016] Figure 9 yes Figure 1 The diagram shows a fifth cross-sectional view of the thermal management device.

[0017] Figure 10 yes Figure 9 Enlarged view of point A in the middle;

[0018] Figure 11 yes Figure 1 The diagram shows a sixth cross-sectional view of the thermal management device.

[0019] Figure 12 This is a seventh cross-sectional schematic diagram of the thermal management device shown;

[0020] Figure 13 This is a three-dimensional structural schematic diagram of another embodiment of the thermal management device of this application;

[0021] Figure 14 yes Figure 12 A three-dimensional structural schematic diagram of the thermal management device from another angle;

[0022] Figure 15 yes Figure 12 A three-dimensional structural diagram of some components of the thermal management device shown;

[0023] Figure 16 yes Figure 12 An exploded view of part of the structure in the thermal management device is shown below;

[0024] Figure 17 This is a schematic diagram of the thermal management system of this application.

[0025] In the diagram, 10 is a flow channel plate; 101 is a flow channel; 1011 is the first flow channel; 1012 is the second flow channel; 1013 is the third flow channel; 1014 is the fourth flow channel; 1015 is the fifth flow channel; 1016 is the sixth flow channel; 1017 is the seventh flow channel; 102 is the first plate; 103 is the second plate; 11 is the first assembly cavity; 12 is the second assembly cavity; 13 is the first mounting cavity; 14 is the second mounting cavity; 20 is the first multi-way valve; 201 is the valve port channel; 2011 is the first valve port channel; 2012 is the second valve port channel; 2013 is the third valve port channel; 2014 is the fourth valve port channel; 21 is the first valve core assembly; 22 is the first valve body assembly; 23 is the first housing; 24 is the first connector; 30 is the first... 31. Shut-off valve; 31. First valve body; 3101. First mounting channel; 3102. First channel; 3103. First external channel; 3104. First filling channel; 311. First connecting part; 3111. First sealing groove; 3112. Second sealing groove; 3113. First connecting lug; 312. First main body; 313. First external part; 314. First filling part; 32. First valve stem; 33. First valve core; 34. First valve cap; 35. First external nut; 36. First filling valve cap; 37. First sealing ring; 38. Second sealing ring; 40. Second multi-way valve; 401. Valve port channel; 4011. First valve port channel; 4012. Second valve port channel; 4013. Third valve port channel ; 41. Second valve core assembly; 42. Second valve body assembly; 43. Second housing; 44. Second connector; 50. First filter; 501. First filter chamber; 502. First filter housing; 60. Second shut-off valve; 61. Second valve body; 6101. Second mounting channel; 6102. Second channel; 6103. Second external channel; 6104. Second filling channel; 611. Second connecting part; 6111. Sealing ring groove; 6112. Second connecting lug; 612. Second main body; 613. Second external part; 614. Second filling part; 62. Second valve stem; 63. Second valve core; 64. Second valve cap; 65. Second external nut; 66. Second filling valve cap; 67. Seal; 70 701. Silencer; 702. Silencer outlet; 703. Silencer inlet; 80. Heat exchanger; 801. First connection port; 802. Second connection port; 803. Third connection port; 804. Fourth connection port; 90. Gas-liquid separator; 901. Gas-liquid separator inlet; 902. Gas-liquid separator outlet; 100. Compressor; 1001. Compressor outlet; 1002. Compressor inlet; 110. Second filter; 1101. Second filter chamber; 1102. Second filter housing; 120. Third shut-off valve; 130. Outdoor heat exchanger; 1301. First connecting port; 1302. Second connecting port; 140. Electrically controlled liquid cooling plate; 1401. First interface; 1402. Second interface;150. First electronic expansion valve; 160. Second electronic expansion valve; 170. Pressure regulating valve; 180. Check valve; 190. High-pressure switch; 200. First temperature and pressure sensor; 210. Second temperature and pressure sensor; 220. First temperature sensor; 230. Second temperature sensor; 240. Third temperature sensor. Detailed Implementation

[0026] According to one possible embodiment of the thermal management device of this application, referencing Figures 1 to 17 As shown, a thermal management device includes a flow channel plate 10, a first multi-way valve 20, and a heat exchanger 80. The heat exchanger 80 is fixedly connected to the flow channel plate 10. The first multi-way valve 20 includes a first valve core assembly 21 and has at least three valve port channels 201. The first valve core assembly 21 can control the opening and closing of at least three valve port channels 201. The flow channel plate 10 has at least three flow channels 101, which can be used to flow refrigerant and can communicate with the valve port channels 201.

[0027] The flow channel plate 10 has a first assembly cavity 11, and a portion of the first multi-way valve 20 is located in the first assembly cavity 11. The first multi-way valve 20 is directly connected to the cavity wall of the first assembly cavity 11.

[0028] The first valve core assembly 21 is capable of controlling the opening and closing of at least three valve port channels 201. In other words, the first valve core assembly 21 selectively connects different combinations of at least three valve port channels 201 through linear displacement or rotational motion. In other words, the first valve core assembly 21 controls the connection relationship between at least three valve port channels 201 through linear displacement or rotational motion.

[0029] In this application, a portion of the first multi-way valve 20 is located in the first assembly cavity 11. The first multi-way valve 20 is directly connected to the cavity wall of the first assembly cavity 11. The first multi-way valve 20 is directly installed on the flow channel plate 10, which reduces the number of pipeline connections and welding points, thereby reducing the risk of refrigerant leakage when the thermal management device is working, and is conducive to improving the service life of the thermal management device.

[0030] Multi-port valves in related technologies are generally pipeline-type multi-port valves, which have numerous pipe connections, weld points, and are relatively large in size. The first multi-port valve 20 of this application is a multi-port column valve, which is smaller in size and directly installed on the flow channel plate 10. Compared to pipeline-type multi-port valves that are connected to the flow channel plate 10 via pipes, this reduces pipe connections, thereby reducing the number of weld points, decreasing the risk of refrigerant leakage during operation of the thermal management device, and also reducing the size of the thermal management device, thus facilitating its miniaturization.

[0031] Reference Figures 1 to 5The first multi-way valve 20 includes a first valve body assembly 22, with at least three valve port channels 201 disposed within it. The first valve body assembly 22 is at least partially located within a first assembly cavity 11. The first valve body assembly 22 is sealed to the cavity wall of the first assembly cavity 11. Specifically, the first valve body assembly 22 is sealed to the cavity wall of the first assembly cavity 11. The first valve body assembly 22 and the cavity wall of the first assembly cavity 11 are sealed together by a sealing ring, ensuring a tight seal between the first valve body assembly 22 and the flow channel plate 10, reducing the possibility of fluid leakage. A first valve core assembly 21 is partially located within the inner cavity of the first valve body assembly 22. The first valve body assembly 22 includes multiple valve bodies, which are separately disposed and located around the periphery of the first valve core assembly 21. The number of valve bodies is equal to the number of valve port channels 201. Each valve body has one valve port channel 201, which runs through both sides of the valve body in the thickness direction.

[0032] In an optional embodiment, the first multi-way valve 20 is detachably connected to the flow channel plate 10. Specifically, the first multi-way valve 20 is threadedly connected to the flow channel plate 10, and the first multi-way valve 20 and the flow channel plate 10 are sealed by a sealing element, such as an O-ring. This facilitates disassembly and subsequent maintenance.

[0033] In an optional embodiment, the first multi-way valve 20 and the flow channel plate 10 are connected by laser welding, which is conducive to industrial production, has low cost, and good sealing performance.

[0034] Reference Figure 3 and Figure 4 The runner plate 10 is a one-piece structure, manufactured using sand core casting technology. Sand core casting is a casting process that uses pre-placed sand cores to form complex internal cavities or runners within the casting. This process utilizes the high-temperature resistance and plasticity of the sand core to create complex geometries within the casting, such as curved runners, porous structures, or branching channels.

[0035] The flow channel plate 10 is manufactured using a sand core integral casting process. The manufacturing steps are as follows:

[0036] Based on the internal structure of the flow channel plate 10 and the design requirements of the flow channel 101, a three-dimensional model of the sand core was designed using CAD software.

[0037] Resin sand or water glass sand is pressed into shape using a core shooter. Alternatively, 3D printing technology, such as binder jetting, can be used to directly manufacture complex sand cores with higher precision.

[0038] Applying refractory coatings, such as graphite coatings, to the surface of sand cores improves surface smoothness and heat resistance.

[0039] Secure the sand core in the mold to ensure accurate positioning, such as by using locating pins or support structures for positioning and support.

[0040] The mold material is usually wet sand or resin sand, suitable for pouring high-temperature molten metal. Molten metal, such as aluminum alloy, cast iron, and stainless steel, is poured into the mold to fill the cavity around the sand core.

[0041] After cooling, the sand core is removed from the casting by vibration, high-pressure water impact, or chemical dissolution;

[0042] Clean the surface of the casting to remove residual sand particles, perform shot blasting or sandblasting, and high-pressure clean the internal cavities to ensure no sand particles remain. This completes the manufacturing of the flow channel plate 10.

[0043] The flow channel plate 10 is manufactured using a sand core integrated casting process, enabling the creation of complex flow channels 101 such as curved, spiral, and branched structures to meet the needs of efficient heat exchange or fluid control. Integrated molding avoids sealing issues associated with welding or assembly. The sand core shape is flexible, supporting customized designs to adapt to diverse application scenarios. Compared to machining or welding, sand core integrated casting reduces material waste and lowers production costs. It is suitable for a wide range of metal materials, including aluminum alloys, cast iron, copper alloys, and stainless steel. The sand core surface is coated with a refractory coating to improve the flow channel smoothness and reduce subsequent machining requirements. 3D printing sand core technology enables high-precision molding of complex structures. In short, the flow channel plate 10 is manufactured using a sand core integrated casting process, achieving the molding of complex internal structures through pre-placed sand cores, offering high design freedom, good sealing, and good structural strength.

[0044] Optionally, the flow channel plate 10 is manufactured using a traditional one-piece casting process. A straight flow channel is formed in the flow channel plate 10 through machining, resulting in good structural strength and sealing performance; this machining technology is mature.

[0045] Reference Figures 13 to 16 In an optional embodiment, the flow channel plate 10 is a split structure, including a first plate 102 and a second plate 103. The first plate 102 and the second plate 103 are fixedly connected, and the flow channel 101 is located between the first plate 102 and the second plate 103. The first plate 102 and / or the second plate 103 have a plurality of grooves or holes forming the flow channel 101. Specifically, the first plate 102 and the second plate 103 are welded and fixed to achieve a sealed connection.

[0046] Optionally, the first plate 102 and / or the second plate 103 are stamped parts, manufactured using a stamping process. Optionally, both the first plate 102 and the second plate 103 are stamped parts, and both the first plate 102 and the second plate 103 have multiple slots or holes forming the flow channel 101.

[0047] Specifically, metal sheets, such as stainless steel or aluminum alloy, with thicknesses ranging from 0.02mm to 1mm, are selected. The sheets are then punched, stretched, or bent on a press using molds to form the basic outline of the flow channel 101. Stamping can efficiently process complex shapes, such as spirals, bends, and branching flow channels, completing hundreds to thousands of stamping operations per minute. The flow channel surface requires further reaming and polishing to ensure smoothness and reduce fluid pressure drop. The flow channel plate 10 is manufactured using a stamping process, enabling efficient production, high precision, and complex flow channel forming. Furthermore, the flow channel plate 10 is lightweight, resulting in lower material and processing costs.

[0048] Optionally, the first plate 102 and the second plate 103 are manufactured using conventional casting processes. Specifically, the first plate 102 is formed by casting and then machined to form the internal flow channel 101. The second plate 103 is a flat plate structure, and the first plate 102 and the second plate 103 are welded together.

[0049] Reference Figure 5 The flow channel plate 10 has multiple flow channels 101, at least one of which is a curved flow channel. At least one flow channel 101 is either a curved or spiral flow channel. When the flow channel 101 is curved, the fluid's direction constantly changes, generating centrifugal force. This intensifies the collision and mixing of particles within the fluid, creating strong turbulence. Compared to straight flow channels, turbulence significantly improves the convective heat transfer coefficient of the fluid. The curved shape increases the surface area of ​​the flow channel 101, thereby increasing the contact area between the fluid and the wall of the flow channel 101. A larger contact area means more heat can be transferred in the same amount of time, improving the heat exchange efficiency of the entire thermal management device. The curved flow channel 101 reduces flow resistance compared to a flow channel with a right-angle turn.

[0050] The first multi-way valve 20 has four valve port channels 201, and the first valve core assembly 21 is capable of controlling the connection relationship between the four valve port channels 201. In other words, the first valve core assembly 21 selectively connects different combinations of the four valve port channels 201 through linear displacement or rotational motion. The first multi-way valve 20 is an electrically operated four-way valve or a solenoid four-way valve. The first multi-way valve 20 has a first valve port channel 2011, a second valve port channel 2012, a third valve port channel 2013, and a fourth valve port channel 2014, which are distributed circumferentially around the first multi-way valve 20.

[0051] Reference Figure 4 and Figure 5The first multi-way valve 20 includes a first housing 23 and a first connector 24, which are fixedly connected, or the first housing 23 and the first connector 24 are an integral structure. A portion of the first valve core assembly 21 is located within the inner cavity of the first housing 23. The first valve body assembly 22 is fixedly connected to the first housing 23. The first connector 24 is fixedly connected to the flow channel plate 10. Optionally, the first connector 24 is welded to the flow channel plate 10 to achieve a sealed connection between the first multi-way valve 20 and the flow channel plate 10. Optionally, the first connector 24 has multiple bolt holes evenly spaced circumferentially, and the flow channel plate 10 has multiple corresponding bolt holes. The first connector 24 and the flow channel plate 10 are connected by bolts, and the first multi-way valve 20 and the flow channel plate 10 are sealed together by a sealing ring, facilitating disassembly.

[0052] The first multi-way valve 20 also includes a motor, a transmission assembly, and a control assembly. The control assembly receives signals from the control system and controls the operation of the motor. It can precisely control the motor's speed, direction, and rotation angle according to a preset program or external input signals, thereby achieving precise adjustment of the position of the first valve core assembly 21. The motor includes a stator assembly and a rotor assembly. The stator assembly is sleeved on the outer peripheral wall of the first housing 23, and the rotor assembly is located in the inner cavity of the first housing 23. After the motor is energized, the stator assembly drives the rotor assembly to move. The rotor assembly is connected to the transmission assembly, and the transmission assembly is connected to the first valve core assembly 21. The transmission assembly converts the rotational motion of the motor into linear sliding or rotational motion of the first valve core assembly 21, enabling the first valve core assembly 21 to be accurately positioned at different working positions to control the communication relationship between the first valve port channel 2011, the second valve port channel 2012, the third valve port channel 2013, and the fourth valve port channel 2014, thereby achieving fluid flow direction control in different modes such as cooling and heating.

[0053] Reference Figure 1 and Figure 8The thermal management device includes a first shut-off valve 30 and a silencer 70. The first shut-off valve 30 is fixedly connected to the flow channel plate 10, and the silencer 70 is also fixedly connected to the flow channel plate 10. The silencer 70 and the first multi-way valve 20 are located on opposite sides of the flow channel plate 10. The silencer 70 has a silencing chamber 701 and a silencer outlet 702, which are connected. The flow channel plate 10 has a first flow channel 1011 and a second flow channel 1012. The valve chamber of the first shut-off valve 30 is connected to the first valve port channel 2011 through the first flow channel 1011, and the silencer outlet 702 is connected to the second valve port channel 2012 through the second flow channel 1012. The first flow channel 1011 and the second flow channel 1012 are both curved. The first shut-off valve 30 is directly mounted on the flow channel plate 10. Integrating the first shut-off valve 30 through the flow channel plate 10 reduces the size of the thermal management device compared to connecting the first shut-off valve 30 to the flow channel plate 10 via piping. It also reduces the number of piping connections and weld points, thereby reducing the risk of refrigerant leakage during operation and extending the lifespan of the thermal management device. Furthermore, it improves the integration of the thermal management device, facilitating miniaturization. Similarly, the silencer 70 is directly mounted on the flow channel plate 10. Integrating the silencer 70 through the flow channel plate 10 further improves the integration of the thermal management device and reduces its size, thus promoting miniaturization.

[0054] The curved design of the first flow channel 1011 helps reduce the flow resistance between the valve chamber of the first shut-off valve 30 and the first valve port channel 2011, and also creates turbulence. Compared to a straight flow channel, turbulence improves the convective heat transfer coefficient of the fluid. The curved shape increases the surface area of ​​the first flow channel 1011, thereby increasing the contact area between the fluid and the wall of the first flow channel 1011 and improving heat transfer efficiency. Similarly, the curved design of the second flow channel 1012 helps reduce the flow resistance between the silencer outlet 702 and the second valve port channel 2012, and also creates turbulence. Compared to a straight flow channel, turbulence improves the convective heat transfer coefficient of the fluid. The curved shape increases the surface area of ​​the second flow channel 1012, thereby increasing the contact area between the fluid and the wall of the second flow channel 1012 and improving heat transfer efficiency.

[0055] Reference Figure 9 and Figure 10 The first shut-off valve 30 includes a first valve body 31 and a first valve stem 32. The first valve body 31 has a first mounting channel 3101, a first channel 3102 and a first external channel 3103. The first valve stem 32 is at least partially located in the first mounting channel 3101 and is connected to the wall forming the first mounting channel 3101. The flow channel plate 10 has a flow channel 101. The first channel 3102 communicates with the flow channel 101. The first valve stem 32 can control the opening and closing between the first channel 3102 and the first external channel 3103.

[0056] The flow channel plate 10 has a first mounting cavity 13, and a portion of the first valve body 31 is located in the first mounting cavity 13. The first valve body 31 is directly connected to the cavity wall of the first mounting cavity 13.

[0057] The first valve stem 32 can control the connection between the first channel 3102 and the first external channel 3103. In other words, the first valve stem 32 controls the connection between the first channel 3102 and the first external channel 3103 through linear displacement or rotational motion.

[0058] In this application, a portion of the first valve body 31 is located in the first mounting cavity 13, and the first valve body 31 is directly connected to the cavity wall of the first mounting cavity 13. The first shut-off valve 30 is directly installed in the first mounting cavity 13 of the flow channel plate 10. Compared with the first shut-off valve 30 being fixedly connected and communicated with the flow channel plate 10 through a pipeline, this not only reduces the volume of the thermal management device, but also reduces the number of pipeline connections and welding points, thereby reducing the risk of refrigerant leakage when the thermal management device is working.

[0059] Reference Figure 9 and Figure 10 In this embodiment, the first valve body 31 includes a first connecting portion 311, which is at least partially located in the first mounting cavity 13. The first connecting portion 311 is threadedly connected to the cavity wall of the first mounting cavity 13. Specifically, the first connecting portion 311 includes a first external thread, and the cavity wall of the first mounting cavity 13 includes a first internal thread. The first external thread and the first internal thread are threadedly connected. The threaded connection between the first connecting portion 311 and the cavity wall of the first mounting cavity 13 means that the first shut-off valve 30 is threadedly connected to the flow channel plate 10. Compared to welding the first shut-off valve 30 to the flow channel plate 10 via a pipeline, this facilitates the disassembly and subsequent maintenance of the first shut-off valve 30 and the flow channel plate 10.

[0060] In an optional embodiment, the first shut-off valve 30 and the flow channel plate 10 are fixed by laser welding and a sealed connection is achieved, which is beneficial for industrial production. Specifically, the first connecting part 311 is welded and fixed to the cavity wall of part of the first mounting cavity 13.

[0061] The first valve body 31 is an integral structure made of brass. It has good structural stability and corrosion resistance.

[0062] Reference Figure 9 and Figure 10In this embodiment, the first connecting portion 311 has a first sealing groove 3111, and the first shut-off valve 30 includes a first sealing ring 37. The first sealing ring 37 is at least partially located in the first sealing groove 3111, and the first sealing ring 37 is in a limiting fit with the groove wall of the first sealing groove 3111. The first sealing ring 37 elastically abuts against the groove wall of the first sealing groove 3111 and elastically abuts against the cavity wall of the first mounting cavity 13. The first sealing ring 37 is an O-ring and is made of rubber. The first valve body portion 31 and the cavity wall of the first mounting cavity 13 of the flow channel plate 10 are sealed together by the first sealing ring 37, and the first shut-off valve 30 and the flow channel plate 10 are sealed together by the first sealing ring 37, reducing the possibility of fluid leakage at the connection between the first shut-off valve 30 and the flow channel plate 10, resulting in better sealing performance.

[0063] The first connecting portion 311 has a second sealing groove 3112, which is spaced apart from the first sealing groove 3111. The first shut-off valve 30 includes a second sealing ring 38, which is at least partially located in the second sealing groove 3112. The second sealing ring 38 is in a limiting fit with the groove wall of the second sealing groove 3112. The groove wall of the second sealing groove 3112 and the cavity wall of the first mounting cavity 13 are both elastically abutting against the second sealing ring 38. The second sealing ring 38 is an O-ring made of rubber. The first valve body portion 31 and the cavity wall of the first mounting cavity 13 of the flow channel plate 10 are also sealed together by the second sealing ring 38. The first shut-off valve 30 and the flow channel plate 10 are also sealed together by the second sealing ring 38. That is, the first shut-off valve 30 and the flow channel plate 10 achieve double sealing through the first sealing ring 37 and the second sealing ring 38, which further reduces the possibility of fluid leakage at the connection between the first shut-off valve 30 and the flow channel plate 10, resulting in better sealing performance.

[0064] Reference Figure 3 , Figure 7 and Figure 10 The first connecting portion 311 includes a first connecting ear 3113, which has bolt holes. The flow channel plate 10 also has matching bolt holes. The first connecting ear 3113 and the flow channel plate 10 are fixedly connected by bolts. The first connecting ear 3113 protrudes outward from the outer peripheral wall of the first connecting portion 311. The first connecting portion 311 includes two first connecting ears 3113, which are spaced apart and symmetrically arranged. Both first connecting ears 3113 are fixedly connected to the flow channel plate 10 by bolts. The first connecting ears 3113 further enhance the connection and sealing between the first shut-off valve 30 and the flow channel plate 10, and the bolt connection facilitates disassembly.

[0065] Reference Figure 9 and Figure 10In this embodiment, the first shut-off valve 30 includes a first valve core 33, and the first valve body 31 has a first filling channel 3104. The first valve core 33 is at least partially located in the first filling channel 3104, and the first valve core 33 is in a limiting engagement with the wall forming the first filling channel 3104. The first valve stem 32 can control the opening and closing of the first channel 3102, the first external channel 3103, and the first filling channel 3104. In other words, the first valve stem 32 controls the connection relationship between the first channel 3102, the first external channel 3103, and the first filling channel 3104 through linear displacement or rotational motion.

[0066] The first valve body 31 is provided with a first charging channel 3104, and a first valve core 33 is installed in the first charging channel 3104. This structure is used to charge refrigerant and other working media into the thermal management system to ensure the normal operation of the system. It can also regulate the system pressure to a certain extent. For example, when the system pressure is too low, the pressure can be increased by charging an appropriate amount of media to maintain the stability of the system pressure. The first valve core 33 is used to control the charging and shut-off of the media. During charging, by pressing or other operations, the tension of the spring inside the valve core is overcome, causing the sealing gasket to open, thereby providing a channel for the refrigerant and other media to enter the system smoothly. After charging is completed, the external force is removed, and under the action of the spring, the sealing gasket is tightly attached to the valve seat to prevent the media from flowing back, thus shutting off the first charging channel 3104 and ensuring that the media in the system does not leak. It can also precisely adjust the charging amount and facilitate pressure detection. By connecting a special pressure detection device to the valve core, the internal pressure of the system can be quickly and conveniently measured to verify the charging effect and the sealing performance of the system. It also facilitates system maintenance. After the system has been repaired, maintained, or had parts replaced, it is necessary to re-vacuum and refill the medium. The valve core provides a dedicated and easy-to-use interface, which makes these maintenance tasks possible.

[0067] Reference Figure 9 and Figure 10The first shut-off valve 30 includes a first valve cap 34, a first external nut 35, and a first filling valve cap 36, which are located on different sides of the first valve body 31. The first valve body 31 includes a first main body 312, a first external portion 313, and a first filling portion 314. A first mounting channel 3101 is located in the first main body 312. The first valve cap 34 is detachably connected to the first main body 312. The first external channel 3103 is located in the first external portion 313. The first external nut 35 is detachably connected to the first external portion 313 and is threadedly connected to the first external portion 313 of the first valve body 31. A first filling channel 3104 is located in the first filling portion 314, and the first filling valve cap 36 is detachably connected to the first filling portion 314. The first valve cap 34 protects components such as the first valve stem 32. The first valve cap 34 is sealed to the first main body 312 of the first valve body 31, achieving a secondary seal to ensure sealing performance and safety. The first filling valve cap 36 protects components such as the first valve core 33. The first filling valve cap 36 is sealed to the first filling part 314 of the first valve body 31, achieving a secondary seal to ensure sealing performance and safety.

[0068] The first valve body 31 is approximately cross-shaped. The first mounting channel 3101, the first channel 3102, the first external channel 3103, and the first filling channel 3104 are arranged in a cross shape. Specifically, the central axis of the first channel 3102 is perpendicular to the central axis of the first external channel 3103, the central axis of the first mounting channel 3101 is perpendicular to the central axis of the first external channel 3103, the central axis of the first channel 3102 is perpendicular to the central axis of the first filling channel 3104, and the central axis of the first mounting channel 3101 is perpendicular to the central axis of the first filling channel 3104.

[0069] Reference Figure 1 and Figure 17 The thermal management device includes a compressor 100, which is directly mounted on a flow channel plate 10, or the compressor 100 is connected to the flow channel plate 10 via a pipeline. The inner cavity of the compressor 100 is connected to the silencing cavity 701 of the silencer 70. During operation, the thermal management device generates noise, such as from the compressor's operation and the refrigerant's flow. The silencer 70 reduces this noise. Furthermore, excessive noise is often accompanied by strong vibrations and pressure fluctuations. The silencer 70 weakens these vibrations and pressure fluctuations, thereby reducing impact and wear on pipes, valves, joints, and other equipment components, extending the service life of the thermal management device. In addition, noise and vibration can affect the normal operation of sensors in the thermal management device, leading to measurement errors and control instability. The silencer 70 reduces noise and vibration, improving the sensor's accuracy and ensuring stable system operation.

[0070] Reference Figure 1 and Figure 17 The thermal management device includes a gas-liquid separator 90 and an outdoor heat exchanger 130. The gas-liquid separator 90 is connected to a flow channel plate 10, and the outdoor heat exchanger 130 is also connected to the flow channel plate 10. The flow channel plate 10 has a third flow channel 1013 and a fourth flow channel 1014. The gas-liquid separator 90 has a gas-liquid separator inlet 901, which is connected to a third valve port channel 2013 via the third flow channel 1013. The outdoor heat exchanger 130 has a first connecting port 1301, which is connected to the fourth valve port channel 2014 via the fourth flow channel 1014. The third flow channel 1013 and the fourth flow channel 1014 are both curved.

[0071] The third flow channel 1013 is a curved flow channel, which helps reduce the flow resistance of the fluid between the gas-liquid separator 90 and the third valve port channel 2013. The fourth flow channel 1014 is a curved flow channel, which helps reduce the flow resistance of the fluid between the outdoor heat exchanger 130 and the fourth valve port channel 2014. The curved flow channels 1012, 1013, and 1014 can also create turbulence. Compared with straight flow channels, turbulence can improve the convective heat transfer coefficient of the fluid. The curved shape increases the contact area between the fluid and the channel wall, thereby improving the heat transfer efficiency.

[0072] The thermal management device integrates a first shut-off valve 30, a gas-liquid separator 90, and an outdoor heat exchanger 130, which improves the integration of the thermal management device. The first shut-off valve 30 is directly mounted on the flow channel plate 10. The gas-liquid separator 90 is directly mounted on the flow channel plate 10, or the gas-liquid separator 90 is connected to the flow channel plate 10 via a pipeline. The outdoor heat exchanger 130 is directly mounted on the flow channel plate 10, or the outdoor heat exchanger 130 is connected to the flow channel plate 10 via a pipeline. The gas-liquid separator 90 separates the refrigerant gas-liquid mixture from the evaporator, allowing the gaseous refrigerant to enter the compressor, while the liquid refrigerant remains in the gas-liquid separator 90, preparing for subsequent refrigeration cycles. Simultaneously, it prevents liquid refrigerant from entering the compressor 100, avoiding liquid slugging. Liquid slugging can damage compressor components such as pistons and valves. The gas-liquid separator 90 can effectively protect the normal operation of the compressor 100. By separating the gas and liquid phases, it stabilizes the refrigerant entering the compressor, which helps improve the efficiency and stability of the refrigeration system and reduces system fluctuations caused by the unstable state of the refrigerant.

[0073] The outdoor heat exchanger 130 regulates the pressure and temperature of the entire thermal management system by controlling the condensation and evaporation processes of the refrigerant. During cooling, effective refrigerant condensation reduces the pressure on the high-pressure side of the system; during heating, proper refrigerant evaporation maintains a suitable pressure on the low-pressure side. This pressure and temperature regulation helps ensure stable system operation and improves equipment performance and efficiency.

[0074] Reference Figures 1 to 5 The thermal management device includes a second multi-way valve 40, which includes a second valve core assembly 41. The second multi-way valve 40 has three valve port channels 401, and the second valve core assembly 41 can control the communication relationship between the three valve port channels 401. In other words, the second valve core assembly 41 selectively connects different combinations of the three valve port channels 401 through linear displacement or rotational motion. The second multi-way valve 40 is a three-way valve. The flow channel plate 10 has a second assembly cavity 12, and a portion of the second multi-way valve 40 is located in the second assembly cavity 12, with the second multi-way valve 40 fixedly connected to the cavity wall of the second assembly cavity 12. Both the first multi-way valve 20 and the second multi-way valve 40 are located on the same side of the flow channel plate 10, facilitating assembly and resulting in a compact structure.

[0075] In this application, a portion of the second multi-way valve 40 is located in the second assembly cavity 12. The second multi-way valve 40 is directly connected to the cavity wall of the second assembly cavity 12. The second multi-way valve 40 is directly installed on the flow channel plate 10, which further reduces the number of pipeline connections and welding points, thereby further reducing the risk of refrigerant leakage when the thermal management device is working, and is conducive to improving the service life of the thermal management device.

[0076] Multi-port valves in related technologies are generally pipeline-type multi-port valves, which have numerous pipe connections, weld points, and are relatively large in size. The second multi-port valve 40 in this application is a multi-port column valve, which is smaller in size and directly mounted on the flow channel plate 10. Compared to pipeline-type multi-port valves that are connected to the flow channel plate 10 via pipes, this reduces pipe connections, thereby reducing the number of weld points and the risk of refrigerant leakage during operation of the thermal management device. It also reduces the size of the thermal management device, facilitating its miniaturization.

[0077] In an optional embodiment, the second multi-way valve 40 is detachably connected to the flow channel plate 10. Specifically, the second multi-way valve 40 is threaded to the flow channel plate 10, and the second multi-way valve 40 is bolted to the flow channel plate 10. Furthermore, the second multi-way valve 40 and the flow channel plate 10 are sealed by a sealing element, such as an O-ring. This facilitates disassembly and subsequent maintenance.

[0078] In an optional embodiment, the second multi-way valve 40 is connected to the flow channel plate 10 by laser welding, which is conducive to industrial production, has low cost, and good sealing performance.

[0079] The second multi-way valve 40 includes a second valve body assembly 42, with at least three valve port channels 401 located within the second valve body assembly 42. The second valve body assembly 42 is sealed to the cavity wall of the second assembly cavity 12. The second valve body assembly 42 is sealed to the cavity wall of the second assembly cavity 12 by a sealing ring, ensuring the sealing between the second valve body assembly 42 and the flow channel plate 10 and reducing the possibility of fluid leakage.

[0080] The second multi-way valve 40 includes a second housing 43 and a second connecting member 44, which are fixedly connected, or the second housing 43 and the second connecting member 44 are an integral structure. A portion of the second valve core assembly 41 is located within the inner cavity of the second valve body assembly 42, and a portion of the second valve core assembly 41 is located within the inner cavity of the second housing 43. The second valve body assembly 42 is fixedly connected to the second housing 43. The second connecting member 44 is fixedly connected to the flow channel plate 10. Optionally, the second connecting member 44 is welded to the flow channel plate 10 to achieve a sealed connection between the second multi-way valve 40 and the flow channel plate 10. Optionally, the second connecting member 44 has multiple through holes evenly spaced circumferentially, and the flow channel plate 10 has multiple corresponding through holes. The second connecting member 44 is bolted to the flow channel plate 10, and the second multi-way valve 40 is sealed to the flow channel plate 10 through a sealing ring, facilitating disassembly.

[0081] The second multi-way valve 40 has a first valve port channel 4011, a second valve port channel 4012 and a third valve port channel 4013, which are arranged at intervals along the circumference of the second multi-way valve 40.

[0082] The second multi-way valve 40 also includes a motor, a transmission assembly, and a control assembly. The control assembly receives signals from the control system and controls the operation of the motor. It can precisely control the motor's speed, direction, and rotation angle according to a preset program or external input signals, thereby achieving precise adjustment of the position of the second valve core assembly 41. The motor includes a stator assembly and a rotor assembly. The stator assembly is sleeved on the outer peripheral wall of the second housing 43, and the rotor assembly is located in the inner cavity of the second housing 43. After the motor is energized, the stator assembly drives the rotor assembly to move. The rotor assembly is connected to the transmission assembly, which is in turn connected to the second valve core assembly 41. The transmission assembly converts the rotational motion of the motor into linear sliding or rotational motion of the second valve core assembly 41, enabling the second valve core assembly 41 to be accurately positioned at different working positions to control the communication relationship between the first valve port channel 4011, the second valve port channel 4012, and the third valve port channel 4013, thus achieving fluid flow direction control in different modes such as cooling and heating.

[0083] Reference Figures 1 to 5The thermal management device includes a second shut-off valve 60, which is fixedly connected to a flow channel plate 10. The first shut-off valve 30 and the second shut-off valve 60 are located on the same side of the flow channel plate 10. The flow channel plate 10 has a fifth flow channel 1015 and a sixth flow channel 1016. The second shut-off valve 60 communicates with the first valve port orifice 4011 through the fifth flow channel 1015, and the silencer outlet 702 communicates with the second valve port orifice 4012 through the sixth flow channel 1016. The fifth flow channel 1015 and the sixth flow channel 1016 are both curved. The second shut-off valve 60 is directly installed on the flow channel plate 10. Compared to connecting the second shut-off valve 60 to the flow channel plate 10 via a pipeline, this reduces the size of the thermal management device and the number of pipeline connections and weld points, thereby reducing the risk of refrigerant leakage during operation and improving the service life of the thermal management device.

[0084] Reference Figure 1 and Figure 11 The thermal management device includes a second shut-off valve 60. The first shut-off valve 30 and the second shut-off valve 60 are located on the same side of the flow channel plate 10. The flow channel plate 10 has a second mounting cavity 14. The first mounting cavity 13 and the second mounting cavity 14 are spaced apart and located on the same side of the flow channel plate 10. The first shut-off valve 30 and the second shut-off valve 60 are located on the same side of the flow channel plate 10, which is a compact structure that facilitates the miniaturization of the thermal management device and makes installation easier.

[0085] The second shut-off valve 60 includes a second valve body 61, a portion of which is located in the second mounting cavity 14. The second valve body 61 is threadedly connected to the cavity wall of the second mounting cavity 14, and the second valve body 61 and the cavity wall of the second mounting cavity 14 are sealed together by a sealing ring.

[0086] Reference Figure 11 The second shut-off valve 60 includes a second valve stem 62. The second valve body 61 has a second mounting channel 6101, a second channel 6102, and a second external channel 6103. The second valve stem 62 is at least partially located in the second mounting channel 6101 and is connected to the wall forming the second mounting channel 6101. The flow channel plate 10 has a flow channel 101, and the second channel 6102 communicates with the flow channel 101. The second valve stem 62 can control the connection between the second channel 6102 and the second external channel 6103. In other words, the second valve stem 62 controls the connection between the second channel 6102 and the second external channel 6103 through linear displacement or rotational motion.

[0087] The second shut-off valve 60 is directly installed in the second mounting cavity 14 of the flow channel plate 10. Compared with the second shut-off valve 60 being fixedly connected to the flow channel plate 10 through a pipeline, this not only reduces the volume of the thermal management device, but also reduces the number of pipeline connections and welding points, thereby reducing the risk of refrigerant leakage when the thermal management device is working.

[0088] Reference Figure 11 In this embodiment, the second valve body 61 includes a second connecting portion 611, which is at least partially located in the second mounting cavity 14 and is threadedly connected to the cavity wall of the second mounting cavity 14. This threaded connection means that the second shut-off valve 60 is threadedly connected to the flow channel plate 10. Compared to welding the second shut-off valve 60 to the flow channel plate 10 via a pipeline, this facilitates the disassembly and subsequent maintenance of the second shut-off valve 60 and the flow channel plate 10. The second valve body 61 is an integral structure made of brass, exhibiting good structural stability and corrosion resistance.

[0089] In this embodiment, the second connecting portion 611 has a sealing ring groove 6111, and the second shut-off valve 60 includes a sealing element 67. The sealing element 67 is at least partially located in the sealing ring groove 6111, and the sealing element 67 is in a limiting fit with the groove wall of the sealing ring groove 6111. The sealing element 67 elastically abuts against the groove wall of the sealing ring groove 6111 and elastically abuts against the cavity wall of the second mounting cavity 14. The sealing element 67 is an O-ring rubber seal. The second valve body portion 61 and the cavity wall of the second mounting cavity 14 of the flow channel plate 10 are sealed together by the sealing element 67, and the second shut-off valve 60 and the flow channel plate 10 are sealed together by the sealing element 67, which reduces the possibility of fluid leakage at the connection between the second shut-off valve 60 and the flow channel plate 10, resulting in better sealing performance.

[0090] In an optional embodiment, the second connecting part 611 has two spaced-apart sealing ring grooves 6111, and the second shut-off valve 60 includes two sealing elements 67 that cooperate with the sealing ring grooves 6111. The second shut-off valve 60 and the flow channel plate 10 achieve double sealing through the two sealing elements 67, which further reduces the possibility of fluid leakage at the connection between the second shut-off valve 60 and the flow channel plate 10, and improves the sealing performance.

[0091] Reference Figure 3 , Figure 7 and Figure 11 The second connecting portion 611 includes a second connecting ear 6112, which has bolt holes. The flow channel plate 10 also has matching bolt holes. The second connecting ear 6112 is fixedly connected to the flow channel plate 10 by bolts. The second connecting ear 6112 protrudes outward from the outer peripheral wall of the second connecting portion 611. The second connecting portion 611 includes two second connecting ears 6112, which are spaced apart and symmetrically arranged. Both second connecting ears 6112 are fixedly connected to the flow channel plate 10 by bolts. The second connecting ears 6112 further enhance the connection and sealing between the second shut-off valve 60 and the flow channel plate 10, and the bolt connection facilitates disassembly.

[0092] Reference Figure 11 , refer to Figure 9 and Figure 10 In this embodiment, the second shut-off valve 60 includes a second valve core 63, and the second valve body 61 has a second filling channel 6104. The second valve core 63 is at least partially located in the second filling channel 6104, and the second valve core 63 is limited to cooperate with the wall forming the second filling channel 6104. The second valve stem 62 controls the communication relationship between the second channel 6102, the second external channel 6103, and the second filling channel 6104 through linear displacement or rotational movement.

[0093] The second valve body 61 is provided with a second charging channel 6104, and a second valve core 63 is installed in the second charging channel 6104. This structure is used to charge the working medium such as refrigerant into the thermal management system to ensure that the system can operate normally. The second valve core 63 is used to control the charging and shut-off of the medium, and can precisely adjust the charging amount to ensure the charging effect and the system's sealing performance, and also facilitates system maintenance.

[0094] The second shut-off valve 60 includes a second valve cap 64, a second external nut 65, and a second filling valve cap 66, which are located on different sides of the second valve body 61. The second valve body 61 includes a second main body 612, a second external portion 613, and a second filling portion 614. A second mounting channel 6101 is located in the second main body 612. The second valve cap 64 is detachably connected to the second main body 612. The second external channel 6103 is located in the second external portion 613. The second external nut 65 is detachably connected to the second external portion 613 and is threadedly connected to the second external portion 613 of the second valve body 61. A second filling channel 6104 is located in the second filling portion 614, and the second filling valve cap 66 is detachably connected to the second filling portion 614. The second valve cap 64 protects components such as the second valve stem 62. The second valve cap 64 is sealed to the second main body 612 of the second valve body 61, achieving a secondary seal to ensure sealing performance and safety. The second filling valve cap 66 protects components such as the second valve core 63. The second filling valve cap 66 is sealed to the second filling part 614 of the second valve body 61, achieving a secondary seal to ensure sealing performance and safety.

[0095] The second valve body 61 is approximately cross-shaped. The second mounting channel 6101, the second channel 6102, the second external channel 6103, and the second filling channel 6104 are arranged in a cross shape.

[0096] Reference Figure 1 , Figure 5 and Figure 17The thermal management device includes a heat exchanger 80, which is fixedly connected to a flow channel plate 10. A first multi-way valve 20, a first shut-off valve 30, a silencer 70, and the heat exchanger 80 are located on different sides of the flow channel plate 10. The rational arrangement of the components in the thermal management device facilitates its miniaturization. The heat exchanger 80 has a first connection port 801, and the flow channel plate 10 has a seventh flow channel 1017. The first connection port 801 and the third valve port 4013 are connected through the seventh flow channel 1017. The third flow channel 1013 and the seventh flow channel 1017 are interconnected, and the seventh flow channel 1017 is a curved flow channel. The fifth flow channel 1015 is a curved flow channel, which helps reduce the flow resistance of the fluid between the second shut-off valve 60 and the first valve port 4011. The sixth flow channel 1016 is a curved flow channel, which helps reduce the flow resistance of the fluid between the silencer 70 and the second valve port 4012. The seventh flow channel 1017 is a curved flow channel, which helps to reduce the flow resistance of the fluid between the heat exchanger 80 and the third valve port 4013. The fifth flow channel 1015, the sixth flow channel 1016, and the seventh flow channel 1017 are all curved flow channels, which can also create turbulence. Compared with straight flow channels, turbulence can improve the convective heat transfer coefficient of the fluid. The curved shape increases the contact area between the fluid and the flow channel wall, thus improving the heat transfer efficiency.

[0097] Heat exchanger 80 is a plate heat exchanger, comprising multiple heat exchange plates stacked along its thickness. These plates are made of metals such as stainless steel and titanium. The surface of the heat exchange plates has a corrugated shape, commonly herringbone, horizontal corrugations, or arc shapes. The corrugated design increases fluid turbulence, improves heat exchange efficiency, and also enhances the strength and rigidity of the plates. Heat exchanger 80 facilitates heat exchange between hot and cold fluids in the thermal management system, enabling functions such as heating, cooling, and condensation. Heat exchanger 80 boasts high heat transfer efficiency; under the same pressure loss, the plate heat exchanger transfers 6 to 7 times more heat than a shell-and-tube heat exchanger. It also features a compact structure and small footprint; compared to a tube heat exchanger, its footprint is only one-third, contributing to the miniaturization of thermal management devices.

[0098] Reference Figure 2 , Figure 4 and Figure 6The thermal management device includes a first filter 50, which is used to filter impurities in the refrigerant. The first filter 50 has a first filter chamber 501, which is connected to the flow channel 101. The first filter 50 includes a first filter housing 502, which is integrally formed with the flow channel plate 10. In related technologies, the first filter 50 and the flow channel plate 10 are connected by pipes, which increases the possibility of fluid leakage. The integral structure of the first filter housing 502 and the flow channel plate 10 reduces pipe connections and welding points compared to the pipe-connected design, thus reducing the possibility of fluid leakage and providing better structural pressure resistance.

[0099] Reference Figure 2 , Figure 4 , Figure 12 and Figure 17 The thermal management device includes a second filter 110, which is used to filter impurities in the refrigerant. The second filter 110 has a second filter chamber 1101, which is connected to the flow channel 101. The second filter 110 includes a second filter housing 1102, which is an integral structure with the flow channel plate 10. Compared with the second filter 110 and the flow channel plate 10 being connected by a pipeline, this reduces the number of pipeline connections and welding points, reduces the possibility of fluid leakage, and has better structural pressure resistance.

[0100] The heat exchanger 80 has a second connection port 802 and a third connection port 803, both of which communicate with the inner cavity of the heat exchanger 80 and can communicate with the first filter chamber 501. The outdoor heat exchanger 130 has a second connection port 1302, which communicates with the second filter chamber 1101.

[0101] Both the first filter 50 and the second filter 110 are equipped with filter elements, such as filter screens and filter cartridges. Filter screens are generally made of woven metal wire mesh (such as stainless steel wire mesh) or synthetic fibers. Filter cartridges are made of various materials, including paper, fiber, and sintered metal powder. Paper filter cartridges are relatively inexpensive and are often used in applications where filtration accuracy requirements are not extremely high; fiber filter cartridges have better filtration performance and can be repeatedly washed and reused; sintered metal powder filter cartridges have high strength and corrosion resistance, making them suitable for harsh working conditions.

[0102] The first filter 50 and the second filter 110 can filter out solid particles, impurities, metal shavings, etc. in the fluid of the thermal management system, preventing these impurities from entering key components such as heat exchanger 80, compressor 100, and outdoor heat exchanger 130. This avoids damage to components due to wear and blockage, maintains the cleanliness of the fluid in the thermal management system, ensures the stability of the fluid's heat transfer performance and other physicochemical properties, prevents impurities from accumulating in the pipes, avoids pipe blockage, ensures smooth flow of fluid in the system, maintains the normal operation of the system, improves the reliability and stability of the thermal management system, and extends the service life of the thermal management device.

[0103] Reference Figure 1 and Figure 7 The thermal management device includes a third shut-off valve 120. The first shut-off valve 30, the second shut-off valve 60, and the third shut-off valve 120 are all located on the same side of the flow channel plate 10, resulting in a compact structure that facilitates miniaturization and installation. The third shut-off valve 120 is connected to the flow channel plate 10, and its valve chamber communicates with the flow channel 101. In this embodiment, the third shut-off valve 120 is connected to the flow channel plate 10 via a pipeline. In an optional embodiment, the third shut-off valve 120 is directly installed on the flow channel plate 10, which facilitates miniaturization of the thermal management device, reduces the number of pipeline connections and weld points, and thus reduces the risk of refrigerant leakage during operation. The third shut-off valve 120 has a generally similar structure to the first shut-off valve 30 and the second shut-off valve 60, and will not be described in detail here.

[0104] Reference Figure 17 This application also discloses a thermal management system, including a first multi-way valve 20, a first shut-off valve 30, a second multi-way valve 40, a first filter 50, a second shut-off valve 60, a silencer 70, a heat exchanger 80, a gas-liquid separator 90, a compressor 100, a second filter 110, a third shut-off valve 120, an outdoor heat exchanger 130, an electrically controlled liquid cooling plate 140, a first electronic expansion valve 150, a second electronic expansion valve 160, a pressure regulating valve 170, a one-way valve 180, a high-pressure switch 190, a first temperature and pressure sensor 200, a second temperature and pressure sensor 210, a first temperature sensor 220, a second temperature sensor 230, and a third temperature sensor 240.

[0105] The first temperature sensor 220, the second temperature sensor 230, and the third temperature sensor 240 are directly connected to the flow channel plate 10. The first temperature and pressure sensor 200 is connected to the muffler 70, and the second temperature and pressure sensor 210 is directly connected to the flow channel plate 10.

[0106] The second temperature and pressure sensor 210, the first temperature sensor 220, the second temperature sensor 230, and the third temperature sensor 240 are directly mounted on the flow channel plate 10. The structure is compact, the overall sealing is good, and it is beneficial to reduce the size of the thermal management device, which is conducive to miniaturization and integration.

[0107] The setup of the first temperature sensor 220, the second temperature sensor 230, and the third temperature sensor 240 enables real-time temperature monitoring, ensuring the safe operation of the thermal management device, achieving precise temperature control, optimizing system energy efficiency, and facilitating fault diagnosis and early warning.

[0108] The first temperature and pressure sensor 200 and the second temperature and pressure sensor 210 can monitor and provide feedback on the temperature and pressure parameters of the fluid or environment in the thermal management system in real time. By monitoring both temperature and pressure, the thermal management device can be ensured to operate safely, the system energy efficiency can be optimized, and fault diagnosis and early warning can be facilitated.

[0109] The first multi-way valve 20 has a first valve port channel 2011, a second valve port channel 2012, a third valve port channel 2013 and a fourth valve port channel 2014; the second multi-way valve 40 has a first valve port channel 4011, a second valve port channel 4012 and a third valve port channel 4013; the silencer 70 has a silencer outlet 702 and a silencer inlet 703; the heat exchanger 80 has a first connection port 801, a second connection port 802, a third connection port 803 and a fourth connection port 804; the gas-liquid separator 90 has a gas-liquid separator inlet 901 and a gas-liquid separator outlet 902; the compressor 100 has a compressor outlet 1001 and a compressor inlet 1002; the outdoor heat exchanger 130 has a first connecting port 1301 and a second connecting port 1302; and the electrically controlled liquid cooling plate 140 has a first interface 1401 and a second interface 1402.

[0110] The compressor outlet 1001 of the compressor 100 is connected to the silencer inlet 703 of the silencer 70. A one-way valve 180, a high-pressure switch 190 and a first temperature and pressure sensor 200 are provided between the compressor outlet 1001 and the silencer inlet 703. The one-way valve 180 enables one-way flow between the compressor outlet 1001 and the silencer inlet 703 to prevent backflow.

[0111] The silencer outlet 702 of the silencer 70, the second valve port channel 2012 of the first multi-way valve 20, and the second valve port orifice 4012 of the second multi-way valve 40 are interconnected. The fourth valve port channel 2014 of the first multi-way valve 20 is connected to the first connection port 1301 of the outdoor heat exchanger 130. The second connection port 1302 of the outdoor heat exchanger 130 is connected to one port of the second filter 110. The other port of the second filter 110 is connected to one valve port of the second electronic expansion valve 160 and one valve port of the pressure regulating valve 170. The other valve ports of the second electronic expansion valve 160 and the other valve ports of the pressure regulating valve 170 are connected to the second interface 1402 of the electrically controlled liquid cooling plate 140. The first interface 1401 of the electrically controlled liquid cooling plate 140 is connected to the fourth connection port 804 of the heat exchanger 80. The third connection port 803 of the heat exchanger 80 is connected to one port of the first filter 50, the second connection port 802 of the heat exchanger 80 is connected to one valve port of the first electronic expansion valve 150, the other valve port of the first electronic expansion valve 150 is connected to one port of the first filter 50, and the other port of the first filter 50 is connected to the inner cavity of the third shut-off valve 120. A second temperature sensor 230 is provided between the heat exchanger 80 and the first filter 50.

[0112] The first connection port 801 of the heat exchanger 80, the third valve port channel 2013 of the first multi-way valve 20, the third valve port channel 4013 of the second multi-way valve 40, and the gas-liquid separator inlet 901 of the gas-liquid separator 90 are interconnected. A first temperature sensor 220 is provided between the second multi-way valve 40 and the heat exchanger 80, and a third temperature sensor 240 is provided between the first multi-way valve 20 and the gas-liquid separator 90.

[0113] The first valve port passage 2011 of the first multi-way valve 20 is connected to the inner cavity of the first shut-off valve 30, and the first valve port passage 4011 of the second multi-way valve 40 is connected to the inner cavity of the second shut-off valve 60. The gas-liquid separator outlet 902 of the gas-liquid separator 90 is connected to the compressor inlet 1002 of the compressor 100, and a second temperature and pressure sensor 210 is provided between the gas-liquid separator outlet 902 and the compressor inlet 1002.

[0114] It should be understood that the integral structure in this application refers to a component manufactured using a single piece of material through processes such as stamping, extrusion, machining, and 3D printing, without the use of brazing, gluing, or other joining processes. The methods of fixing and installing together in this application include, but are not limited to, at least one of brazing, gluing, or bracket fixing. It should be understood that in this application, the "connection" between two components can be a direct connection or an indirect connection through other components.

[0115] The technical solutions described in this application should be understood by those skilled in the art. For example, directional descriptions such as "front," "back," "left," "right," "up," and "down" are only used to describe the relationship between objects and are not substantive limitations. "Multiple" means at least two or more.

[0116] The above examples illustrate the principles and implementation methods of the present invention. These embodiments are merely illustrative and intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A thermal management device, characterized in that, The system includes a flow channel plate (10), a first multi-way valve (20), and a heat exchanger (80). The heat exchanger (80) is fixedly connected to the flow channel plate (10). The first multi-way valve (20) includes a first valve core assembly (21) and has at least three valve port channels (201). The first valve core assembly (21) can control the opening and closing of at least three valve port channels (201). The flow channel plate (10) has at least three flow channels (101) that can be used to flow refrigerant and can communicate with the valve port channels (201). The flow channel plate (10) has a first assembly cavity (11), and a portion of the first multi-way valve (20) is located in the first assembly cavity (11). The first multi-way valve (20) is directly connected to the cavity wall of the first assembly cavity (11).

2. The thermal management device as claimed in claim 1, characterized in that, The first multi-way valve (20) includes a first valve body assembly (22), at least three valve port channels (201) are disposed in the first valve body assembly (22), the first valve body assembly (22) is at least partially located in the first assembly cavity (11), at least three valve port channels (201) are located in the first assembly cavity (11), and the first valve body assembly (22) is sealed to the cavity wall of the first assembly cavity (11); The flow channel plate (10) is an integral structure and is manufactured using sand core casting process; At least one of the flow channels (101) is a curved flow channel.

3. The thermal management device as described in claim 2, characterized in that, The first multi-way valve (20) has four valve port channels (201), and the first valve core assembly (21) can control the connection relationship between the four valve port channels (201); The first multi-way valve (20) has a first valve port channel (2011), a second valve port channel (2012), a third valve port channel (2013) and a fourth valve port channel (2014), which are distributed circumferentially along the first multi-way valve (20).

4. The thermal management device as described in claim 3, characterized in that, The thermal management device includes a first shut-off valve (30) and a silencer (70). The first shut-off valve (30) is fixedly connected to the flow channel plate (10), and the silencer (70) is fixedly connected to the flow channel plate (10). The silencer (70) and the first multi-way valve (20) are located on opposite sides of the flow channel plate (10). The flow channel plate (10) has a first flow channel (1011) and a second flow channel (1012). The valve chamber of the first shut-off valve (30) is connected to the first valve port channel (2011) through the first flow channel (1011). The silencer (70) has a silencer cavity (701). The silencer cavity (701) is connected to the second valve port channel (2012) through the second flow channel (1012). The first flow channel (1011) is a curved flow channel, and the second flow channel (1012) is a curved flow channel.

5. The thermal management device as described in claim 4, characterized in that, The thermal management device includes a gas-liquid separator (90) and an outdoor heat exchanger (130), wherein the gas-liquid separator (90) is connected to the flow channel plate (10) and the outdoor heat exchanger (130) is connected to the flow channel plate (10). The flow channel plate (10) has a third flow channel (1013) and a fourth flow channel (1014). The inner cavity of the gas-liquid separator (90) is connected to the third valve port channel (2013) through the third flow channel (1013). The inner cavity of the outdoor heat exchanger (130) is connected to the fourth valve port channel (2014) through the fourth flow channel (1014). The third flow channel (1013) is a curved flow channel, and the fourth flow channel (1014) is a curved flow channel.

6. The thermal management device as described in claim 5, characterized in that, The thermal management device includes a second multi-way valve (40), the second multi-way valve (40) includes a second valve core assembly (41), the second multi-way valve (40) has three valve port channels (401), and the second valve core assembly (41) is capable of controlling the communication relationship between the three valve port channels (401); The flow channel plate (10) has a second assembly cavity (12), and a portion of the second multi-way valve (40) is located in the second assembly cavity (12). The second multi-way valve (40) is fixedly connected to the cavity wall of the second assembly cavity (12). The first multi-way valve (20) and the second multi-way valve (40) are both located on the same side of the flow channel plate (10).

7. The thermal management device as claimed in claim 6, characterized in that, The second multi-way valve (40) has a first valve port channel (4011), a second valve port channel (4012) and a third valve port channel (4013), and the first valve port channel (4011), the second valve port channel (4012) and the third valve port channel (4013) are arranged circumferentially along the second multi-way valve (40); The thermal management device includes a second shut-off valve (60), which is fixedly connected to the flow channel plate (10). The first shut-off valve (30) and the second shut-off valve (60) are located on the same side of the flow channel plate (10). The flow channel plate (10) has a fifth flow channel (1015) and a sixth flow channel (1016). The second shut-off valve (60) is connected to the first valve port channel (4011) through the fifth flow channel (1015). The inner cavity of the silencer (70) is connected to the second valve port channel (4012) through the sixth flow channel (1016). The fifth flow channel (1015) is a curved flow channel, and the sixth flow channel (1016) is a curved flow channel.

8. The thermal management device as claimed in claim 7, characterized in that, The first multi-way valve (20), the first shut-off valve (30), the silencer (70) and the heat exchanger (80) are located on different sides of the flow channel plate (10); The heat exchanger (80) has a first connection port (801), and the flow channel plate (10) has a seventh flow channel (1017). The first connection port (801) and the third valve port (4013) are connected through the seventh flow channel (1017). The third flow channel (1013) and the seventh flow channel (1017) are interconnected. The seventh flow channel (1017) is a curved flow channel.

9. The thermal management device according to any one of claims 1 to 8, characterized in that, The thermal management device includes a first filter (50) for filtering impurities in the refrigerant. The first filter (50) has a first filter chamber (501) that is connected to the flow channel (101). The first filter (50) includes a first filter housing (502) that is integral with the flow channel plate (10).

10. The thermal management device as claimed in claim 9, characterized in that, The thermal management device includes a second filter (110) for filtering impurities in the refrigerant. The second filter (110) has a second filter chamber (1101) that is connected to the flow channel (101). The second filter (110) includes a second filter housing (1102) that is integral with the flow channel plate (10). The thermal management device includes a heat exchanger (80) and an outdoor heat exchanger (130). The heat exchanger (80) has a second connection port (802) and a third connection port (803). Both the second connection port (802) and the third connection port (803) are connected to the inner cavity of the heat exchanger (80). Both the second connection port (802) and the third connection port (803) are connected to the first filter cavity (501). The inner cavity of the outdoor heat exchanger (130) is connected to the second filter cavity (1101).

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