An electronic water valve and a thermal management system thereof, vehicle

Abstract

The application discloses an electronic water valve, a thermal management system thereof and a vehicle, and belongs to the technical field of the thermal management system of a vehicle. The electronic water valve comprises a valve shell and a valve core, the valve core is rotatably installed in the valve shell, the shaft core of the valve core is provided with a through chamber, the valve core comprises an upper layer structure, a middle layer structure and a lower layer structure, the middle layer structure is provided with a first open groove and a first through port, the upper layer structure is provided with a second open groove, a second through port and a third through port, the second open groove is communicated with the first open groove, the lower layer structure is provided with a third open groove, a fourth through port and a fifth through port, the third open groove is communicated with the second open groove, and the first through port, the second through port, the fourth through port, the third through port and the fifth through port are all communicated with the through chamber. The electronic water valve has rich modes of a flow circulation loop, is compatible with a one-to-many continuous switching function, and is suitable for a thermal management system with higher integration.

Description

Technical Field

[0001] This invention relates to the field of thermal management system technology for new energy vehicles, and particularly to an electronic water valve and its thermal management system, and a vehicle. Background Technology

[0002] The thermal management system for new energy vehicles includes a battery thermal management system and a motor and electronic control thermal management system. Temperature significantly impacts battery discharge efficiency; low temperatures result in shallower discharge depths, and prolonged operation at low temperatures shortens battery life. Therefore, to ensure effective charging and discharging of the battery pack, a thermal management system is needed to heat or cool it. During motor operation, significant heat is generated, causing the motor temperature to rise, affecting its output power, reducing performance, and in severe cases, leading to vehicle shutdown. Therefore, motor cooling is necessary. Furthermore, some components in other operations within the new energy vehicle thermal management system may also require heating.

[0003] Traditional control systems for battery and motor thermal management in new energy vehicles rely on multiple electronic water valves to control various media flow channels within the thermal management system. These channels are either connected in series or in parallel, allowing each channel to operate as an independent flow loop or to be adjusted to form a single flow loop. Traditional thermal management systems involve multiple electronic water valves, resulting in complex structures, high costs, and intricate media flow channels. Summary of the Invention

[0004] The main objective of this invention is to propose an electronic water valve that can switch between multiple flow path modes.

[0005] The present invention provides an electronic water valve, which includes:

[0006] The valve housing is provided with a first input port, a second input port, a first output port, a second output port, a third output port, and a fourth output port;

[0007] The valve core has a through chamber on its shaft. The valve core includes an upper structure, a middle structure, and a lower structure. The middle structure has a first open groove and a first through port. The upper structure has a second open groove, a second through port, and a third through port. The second open groove communicates with the first open groove. The lower structure has a third open groove, a fourth through port, and a fifth through port. The third open groove communicates with the first open groove. The first, second, fourth, third, and fifth through ports all communicate with the through chamber.

[0008] The valve core is rotatably mounted on the valve housing, the first input port is connected to the first open slot, and the second input port is connected to the first through port;

[0009] When the fourth output port is connected to the second open slot, the second output port is connected to the second through port; or the first output port is connected to the fourth through port.

[0010] When the first output port is connected to the third open slot, the fourth output port is connected to the third port; or the third output port is connected to the fifth port.

[0011] When the second output port is connected to the second open slot, the third output port is connected to the fifth port.

[0012] In one embodiment, the valve core is cylindrical, and the valve core includes a vertical plate and a first rotating plate, a first baffle, a second baffle, and a second rotating plate connected sequentially from top to bottom to the vertical plate.

[0013] The first turntable and the first baffle form the upper structure. The upper structure is provided with multiple first partitions and a surrounding plate connecting the first partitions. The surrounding plate is provided with a first opening, a second opening and a third opening. Two adjacent first partitions, the upright plate and the first opening form a second open slot. Two adjacent first partitions and the second opening form a second through-hole. Two adjacent first partitions and the third opening form the third through-hole.

[0014] The first baffle and the second baffle form the middle layer structure, and the middle layer structure is provided with two second partitions, which separate the first open slot and the first through-hole;

[0015] The second baffle and the second turntable form the lower structure. The lower structure is provided with multiple third partitions and a surrounding plate connecting the third partitions. The surrounding plate is provided with a fourth opening, a fifth opening and a sixth opening. Two adjacent third partitions, the upright plate and the fourth opening form the third open slot. Two adjacent third partitions and the fifth opening form the fourth through-hole. Two adjacent first partitions and the sixth opening form the fifth through-hole.

[0016] In one embodiment, the central angle of the first through-hole is larger than the central angle of the first open slot, and the first through-hole is provided with reinforcing ribs.

[0017] In one embodiment, the central angle of the second open slot is greater than that of the third open slot and less than that of the first open slot; the two ends of the projection of the first open slot are outside the two ends of the projection of the second open slot, and one end of the projection of the third open slot falls into the projection of the first open slot, while the other end is outside the projection of the first open slot.

[0018] In one embodiment, the third port is adjacent to the second open slot, and the second port is spaced apart from both the third port and the second open slot; the fourth port is spaced apart from the fifth port and is adjacent to the third open slot.

[0019] In one embodiment, the central angles of the second, third, and fifth ports are equal, and the central angle of the fourth port is greater than that of the second port and less than that of the first port; the two ends of the projections of the second, fourth, and fifth ports are within the two ends of the projection of the first port, and one end of the projection of the third port falls within the projection of the first port, while the other end is outside the projection of the first port.

[0020] In one embodiment, the first turntable and the second turntable are respectively provided with raised ribs.

[0021] In one embodiment, the electronic water valve further includes a sealing gasket, which is installed between the valve housing and the valve core. The sealing gasket has through holes corresponding to the first input port, the second input port, the first output port, the second output port, the third output port, and the fourth output port, and sealing ribs are provided around the through holes.

[0022] In one embodiment, the sealing rib is serrated.

[0023] In one embodiment, the sealing gasket includes an elastically deformable layer and a low-friction layer, the elastically deformable layer being disposed on the outer periphery of the low-friction layer.

[0024] In one embodiment, the electronic water valve further includes a valve cover and a drive device. The valve cover is mounted on top of the valve housing and has a mounting hole for connecting the drive device.

[0025] The present invention also provides a thermal management system, including an electronic water valve, the electronic water valve comprising:

[0026] The valve housing is provided with a first input port, a second input port, a first output port, a second output port, a third output port, and a fourth output port;

[0027] The valve core has a through chamber on its shaft. The valve core includes an upper structure, a middle structure, and a lower structure. The middle structure has a first open groove and a first through port. The upper structure has a second open groove, a second through port, and a third through port. The second open groove communicates with the first open groove. The lower structure has a third open groove, a fourth through port, and a fifth through port. The third open groove communicates with the first open groove. The first, second, fourth, third, and fifth through ports all communicate with the through chamber.

[0028] The valve core is rotatably mounted on the valve housing, the first input port is connected to the first open slot, and the second input port is connected to the first through port;

[0029] When the fourth output port is connected to the second open slot, the second output port is connected to the second through port; or the first output port is connected to the fourth through port.

[0030] When the first output port is connected to the third open slot, the fourth output port is connected to the third port; or the third output port is connected to the fifth port.

[0031] When the second output port is connected to the second open slot, the third output port is connected to the fifth port.

[0032] The present invention also provides a vehicle including a thermal management system.

[0033] The technical solution of this invention features two input ports and four output ports on the valve housing, and a valve core with multiple interconnectable open slots and orifices. The valve core is rotatably mounted on the valve housing, allowing the input ports to connect to different output ports through different open slots or orifices, thereby enabling the switching of different flow modes. The electronic water valve described in this invention offers a variety of flow circuit modes, is compatible with one-to-many continuous switching functions, is suitable for highly integrated thermal management systems, and exhibits low internal leakage, good sealing performance, and low required motor torque. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of an electronic water valve;

[0036] Figure 2This is a schematic diagram of the three-dimensional structure of the valve body;

[0037] Figure 3 This is a schematic diagram of the three-dimensional structure of the valve core;

[0038] Figure 4 This is a schematic diagram of the first flow mode of an electronic water valve;

[0039] Figure 5 This is a schematic diagram of the second flow mode of an electronic water valve;

[0040] Figure 6 This is a schematic diagram of the third flow mode of an electronic water valve;

[0041] Figure 7 This is a schematic diagram of the fourth flow mode of an electronic water valve;

[0042] Figure 8 This is a schematic diagram of the fifth flow mode of an electronic water valve;

[0043] Figure 9 Top view of the upper structure of the electronic water valve;

[0044] Figure 10 Top view of the middle layer structure of the electronic water valve;

[0045] Figure 11 This is a top view of the lower structure of the electronic water valve;

[0046] Figure 12 This is a schematic diagram of the three-dimensional structure of the sealing gasket.

[0047] Explanation of icon numbers:

[0048]

[0049]

[0050] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0053] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0054] Please refer to Figures 1 to 3This invention proposes an electronic water valve 01, which includes a valve housing 10 and a valve core 30. The valve housing 10 is provided with a first input port 11, a second input port 12, a first output port 13, a second output port 14, a third output port 15, and a fourth output port 16. The valve core 30 has a through chamber 38 on its shaft. The valve core 30 includes an upper structure 31, a middle structure 32, and a lower structure 33. The middle structure 32 is provided with a first open groove 321 and a first through port 323. The upper structure 31 is provided with a second open groove 311, a second through port 313, and a third through port 312. The second open groove 311 communicates with the first open groove 321. The lower structure 33 is provided with a third open groove 331, a fourth through port 333, and a fifth through port 334. The third open groove 331 communicates with the first open groove 321. The open slot 321 is connected; the first port 323, the second port 313, the fourth port 333, the third port 312, and the fifth port 334 are all connected to the passage chamber 38; the valve core 30 is rotatably mounted on the valve body 10, the first input port 11 is connected to the first open slot 321, and the second input port 12 is connected to the first port 323; when the fourth output port 16 is connected to the second open slot 311, the second output port 14 is connected to the second port 313; or the first output port 13 is connected to the fourth port 333; when the first output port 13 is connected to the third open slot 331, the fourth output port 16 is connected to the third port 312; or the third output port 15 is connected to the fifth port 334; when the second output port 14 is connected to the second open slot 311, the third output port 15 is connected to the fifth port 334.

[0055] Please refer to Figure 2The valve housing 10 is provided with a first input port 11, a second input port 12, a first output port 13, a second output port 14, a third output port 15, and a fourth output port 16. The first input port 11 and the second input port 12 are respectively located on opposite sides of the valve housing 10, with a gap between them. Taking the line connecting the first input port 11 and the second input port 12 as a tangent, and cutting along the axial direction of the valve housing 10, the valve housing 10 has two oppositely arranged sidewalls. One sidewall has the first output port 13 and the second output port 14, and the other sidewall has the third output port 15 and the fourth output port 16. The first output port 13 and the third output port 15 are opposite each other, and the extensions of their axes coincide. The center points of the first output port 13 and the third output port 15 are equidistant from the bottom surface of the valve housing 10, and equidistant from the center points of the first input port 11 and the second input port 12. The second output port 14 and the fourth output port 16 are arranged opposite each other, with the extension lines of their axes coinciding. The center points of the second output ports 14 and 16 are equidistant from the bottom surface of the valve housing 10, and equidistant from the center points of the first input port 11 and the second input port 12. The first output port 13 is located directly below the second output port 14, and the projection of the center point of the second output port 14 coincides with the projection of the center point of the first output port 13 along the axial direction of the valve housing 10. The third output port 15 is located directly below the fourth output port 16, and the projection of the center point of the fourth output port 16 coincides with the projection of the center point of the third output port 15 along the axial direction of the valve housing 10. The valve housing 10 includes a first end and a second end. The first input port 11 and the second input port 12 are respectively located on opposite sides of the valve housing 10, with the extension lines of their axes coinciding. The center points of the first input port 11 and the second input port 12 are equidistant from the bottom surface of the valve housing 10. The distance from the first output port 13 to the first end is a1, the distance from the second output port 14 to the first end is a2, the distance from the first input port 11 to the first end is A1, and the distance from the second input port 12 to the first end is A2, satisfying the following relationships: a1 < A1 < a2, a1 < A2 < a2, A1 = A2. The axes of the first input port 11 and the second input port 12 are perpendicular to the axes of the first output port 13, the second output port 14, the third output port 15, and the fourth output port 16.It is understood that the first input port 11, the second input port 12, the first output port 13, the second output port 14, the third output port 15, and the fourth output port 16 are arranged opposite each other on the valve body 10 in an upper, middle, and lower layer. The second output port 14 and the fourth output port 16 are arranged opposite each other on the upper layer. The first input port 11 and the second input port 12 are arranged opposite each other on the middle layer. The axes of the first input port 11 and the second input port 12 are perpendicular to the axes of the second output port 14 and the fourth output port 16. The first output port 13 and the third output port 15 are arranged on the lower layer. The axes of the first output port 13 and the third output port 15 are perpendicular to the axes of the first input port 11 and the second input port 12. Furthermore, the projection of the axes of the first output port 13 and the third output port 15 coincides with the projection of the axes of the second output port 14 and the fourth output port 16.

[0056] Please refer to Figure 3 The valve core 30 has a through chamber 38 on its shaft. The valve core 30 includes an upper structure 31, a middle structure 32, and a lower structure 33. The middle structure 32 has a first open groove 321 and a first through port 323. The first open groove 321 and the first through port 323 are arranged adjacent to each other in the circumferential direction of the middle structure 32 and are not interconnected. The upper structure 31 has a second open groove 311, a second through port 313, and a third through port 312 arranged sequentially in the circumferential direction. The second open groove 311 is connected to the first open groove 321 and is blocked from the second through port 313 and the third through port 312 respectively. The second through port 313 and the third through port 312 can be connected through the through chamber 38. The lower structure 33 has a third open slot 331, a fourth port 333, and a fifth port 334 arranged sequentially around its circumference. The third open slot 331 is connected to the second open slot 311 and is blocked from the fourth port 333 and the fifth port 334, respectively. The fourth port 333 and the fifth port 334 can be connected through a passage chamber 38. The passage chamber 38 extends axially along the valve core 30 through the upper structure 31, the middle structure 32, and the lower structure 33, and is used to connect the first port 323, the second port 313, the fourth port 333, the third port 312, and the fifth port 334.

[0057] The valve housing 10 has two input ports, namely the first input port 11 and the second input port 12, and four output ports, namely the first output port 13, the second output port 14, the third output port 15, and the fourth output port 16. Fluid flows in through the first input port 11 and the second input port 12, and flows out through the first output port 13, the second output port 14, the third output port 15, and the fourth output port 16. The valve core 30 is rotatably mounted on the valve housing 10. The open slots and through-holes on the valve core 30 can form different passages. When the valve core 30 rotates, the first input port 11 on the valve housing 10 connects to the first open slot 321, the second input port 12 connects to the first through-hole 323, and the output ports can connect to different open slots and through-holes, forming five different flow modes, namely the first flow mode, the second flow mode, the third flow mode, the fourth flow mode, and the fifth flow mode.

[0058] Please refer to Figure 4 When the valve core 30 is in its initial position, the electronic water valve 01 is in the first flow mode. The first input port 11 is connected to the first open slot 321, and the second input port 12 is connected to the first through-hole 323; the fourth output port 16 is connected to the second open slot 311, and the second output port 14 is connected to the second through-hole 313. In the first flow mode, the electronic water valve 01 has two pathways. One pathway is where fluid flows from the first input port 11 into the first open slot 321, through the second open slot 311, and out of the fourth output port 16. The other pathway is where fluid flows from the second input port 12 into the first through-hole 323, through the passage chamber 38, from the middle layer structure 32 to the upper layer structure 31, and out of the second output port 14 through the second through-hole 313. The two pathways do not interfere with each other, and the remaining output ports are not interconnected.

[0059] Please refer to Figure 5 When the valve core 30 rotates a certain angle, the electronic water valve 01 is in the second flow mode. The first input port 11 is connected to the first open slot 321, and the second input port 12 is connected to the first through port 323; the fourth output port 16 is connected to the second open slot 311, and the first output port 13 is connected to the fourth through port 333. In the second flow mode, the electronic water valve 01 has two passages. One passage is where fluid flows from the first input port 11 into the first open slot 321, through the second open slot 311, and out of the fourth output port 16. The other passage is where fluid flows from the second input port 12 into the first through port 323, through the passage chamber 38, from the middle layer structure 32 to the lower layer structure 33, and out of the first output port 13 through the fourth through port 333. The two passages do not interfere with each other, and the other output ports are not interconnected.

[0060] Please refer to Figure 6As the valve core 30 continues to rotate at a certain angle, the electronic water valve 01 enters the third flow mode. The first input port 11 connects to the first open slot 321, and the second input port 12 connects to the first through-hole 323; the fourth output port 16 connects to the second open slot 311, and the second output port 14 connects to the second through-hole 313. In the third flow mode, the electronic water valve 01 has two pathways. One pathway is where fluid flows from the first input port 11 into the first open slot 321, and then flows out from the first output port 13 via the third open slot 331. The other pathway is where fluid flows from the second input port 12 into the first through-hole 323, passes through the passage chamber 38, travels from the middle layer structure 32 to the upper layer structure 31, and then flows out from the fourth output port 16 via the third through-hole 312. The two pathways do not interfere with each other, and the remaining output ports are not interconnected.

[0061] Please refer to Figure 7 As the valve core 30 continues to rotate at a certain angle, the electronic water valve 01 enters the fourth flow mode. The first input port 11 connects to the first open slot 321, and the second input port 12 connects to the first through-hole 323; the fourth output port 16 connects to the second open slot 311, and the first output port 13 connects to the fourth through-hole 333. In the fourth flow mode, the electronic water valve 01 has two pathways. One pathway is where fluid flows from the first input port 11 into the first open slot 321, then through the third open slot 331 and out of the first output port 13. The other pathway is where fluid flows from the second input port 12 into the first through-hole 323, through the passage chamber 38, from the middle structure 32 to the lower structure 33, and out of the third output port 15 through the fifth through-hole 334. The two pathways do not interfere with each other, and the remaining output ports are not interconnected.

[0062] Please refer to Figure 8 As the valve core 30 continues to rotate at a certain angle, the electronic water valve 01 enters the fifth flow mode. The first input port 11 connects to the first open slot 321, and the second input port 12 connects to the first through-hole 323; the second output port 14 connects to the second open slot 311, and the third output port 15 connects to the fifth through-hole 334. In the fifth flow mode, the electronic water valve 01 has two pathways. One pathway is where fluid flows from the first input port 11 into the first open slot 321, through the second open slot 311, and out of the second output port 14. The other pathway is where fluid flows from the second input port 12 into the first through-hole 323, through the passage chamber 38, from the middle structure 32 to the lower structure 33, and out of the third output port 15 through the fifth through-hole 334. The two pathways do not interfere with each other, and the remaining output ports are not interconnected.

[0063] Please refer to Figure 3The valve core 30 is cylindrical and includes a vertical plate 36 and a first rotating disc 341, a first baffle 351, a second baffle 352, and a second rotating disc 342 connected from top to bottom to the vertical plate 36. The first rotating disc 341 and the first baffle 351 form an upper structure 31. The upper structure 31 has multiple first partitions 314 and a surrounding plate 37 connecting the first partitions 314. The surrounding plate 37 has a first opening, a second opening, and a third opening. Two adjacent first partitions 314, the vertical plate 36, and the first opening form a second open slot 311. Two adjacent first partitions 314 and the second opening form a second through-hole 313. Two adjacent first partitions 314 and the third opening form a third through-hole 312. Plate 351 and second baffle 352 form a middle structure 32. The middle structure 32 is provided with two second partitions 324, which separate the first open slot 321 and the first passage 323. The second baffle 352 and the second turntable 342 form a lower structure 33. The lower structure 33 is provided with multiple third partitions 332 and a surrounding plate 37 connecting the third partitions 332. The surrounding plate 37 is provided with a fourth opening, a fifth opening and a sixth opening. Two adjacent third partitions 332, the upright plate 36 and the fourth opening form a third open slot 331. Two adjacent third partitions 332 and the fifth opening form a fourth passage 333. Two adjacent first partitions 314 and the sixth opening form a fifth passage 334.

[0064] The valve core 30 includes a vertical plate 36, which is an arc-shaped plate with an arc angle of less than 180° and has a convex surface and a concave surface. A passage chamber 38 is disposed on the concave surface of the vertical plate 36. A first turntable 341 is connected to the top of the vertical plate 36, and a second turntable 342 is connected to the bottom of the vertical plate 36. A first baffle 351 and a second baffle 352 are installed between the first turntable 341 and the second turntable 342. The first baffle 351 is close to the first turntable 341, and the second baffle 352 is close to the second turntable 342. The valve core 30, which is composed of the vertical plate 36, the first turntable 341, the first baffle 351, the second baffle 352, and the second turntable 342, is cylindrical. The first turntable 341 and the first baffle 351 form the upper structure 31. Multiple first partitions 314 and a surrounding plate 37 connecting the first partitions 314 are erected between the first turntable 341 and the first baffle 351. The surrounding plate 37 is provided with a first opening, a second opening and a third opening. Two adjacent first partitions 314, the upright plate 36 and the first opening form a second open groove 311. The second open groove 311 is connected to the convex surface of the upright plate 36. Two adjacent first partitions 314 and the second opening form a second through-hole 313. Two adjacent first partitions 314 and the third opening form a third through-hole 312. The second through-hole 313 and the third through-hole 312 are connected to the concave surface of the upright plate 36 through a through-chamber 38. The first baffle 351 and the second baffle 352 form a middle layer structure 32. Two second partitions 324 are erected on the first baffle 351 and the second baffle 352, respectively, and are connected to the two sides of the upright plate 36 to separate the first open groove 321 and the first through-hole 323. The first open groove 321 is connected to the convex surface of the upright plate 36, and the first through-hole 323 is connected to the concave surface of the upright plate 36 through the through-chamber 38. The second baffle 352 and the second turntable 342 form the lower structure 33. Multiple third partitions 332 and a surrounding plate 37 connecting the third partitions 332 are erected between the second baffle 352 and the second turntable 342. The surrounding plate 37 is provided with a fourth opening, a fifth opening and a sixth opening. Two adjacent third partitions 332, the upright plate 36 and the fourth opening form a third open groove 331. The third open groove 331 is connected to the convex surface of the upright plate 36. Two adjacent third partitions 332 and the fifth opening form a fourth through-hole 333. Two adjacent first partitions 314 and the sixth opening form a fifth through-hole 334. The fourth through-hole 333 and the fifth through-hole 334 are connected to the concave surface of the upright plate 36 through a through-chamber 38.

[0065] Please refer to Figures 9 to 11The central angle of the first opening 323 is greater than that of the first open groove 321, and the first opening 323 is provided with reinforcing ribs 322. The curvature of the upright plate 36 is less than 180°, therefore the convexity of the upright plate 36 is less than 180°. The first open groove 321 and the first opening 323 are separated on both sides of the upright plate 36 by the second partition 324. The central angle of the first open groove 321 located on the convex surface of the upright plate 36 is less than 180°, while the central angle of the first opening 323 located on the concave surface of the upright plate 36 is greater than 180°. Regardless of the rotation angle of the valve core 30 or the flow mode of the electronic water valve 01, the first open groove 321 is always connected to the first input port 11, and the first opening 323 is always connected to the second input port 12. Fluid always flows from the first input port 11 into the first open groove 321, and fluid always flows from the second input port 12 into the first opening 323. The first port 323 is provided with a reinforcing rib 322, which connects the first baffle 351 and the second baffle 352. The reinforcing rib 322 can improve the stability of the valve core 30, avoid the situation where the first port 323 has too large an arc and the structure is unstable, and can extend the service life of the valve core 30.

[0066] The central angle of the second open slot 311 is greater than that of the third open slot 331 and less than that of the first open slot 321; the two ends of the projection of the first open slot 321 are outside the two ends of the projection of the second open slot 311, and one end of the projection of the third open slot 331 falls within the projection of the first open slot 321, while the other end is outside the projection of the first open slot 321. The third opening 312 is adjacent to the second open slot 311, and the second opening 313 is spaced apart from the third opening 312 and the second open slot 311 respectively; the fourth opening 333 is spaced apart from the fifth opening 334 and is adjacent to the third open slot 331. The central angles of the second opening 313, the third opening 312, and the fifth opening 334 are equal, and the central angle of the fourth opening 333 is greater than that of the second opening 313 and less than that of the first opening 323. The two ends of the projections of the second opening 313, the fourth opening 333, and the fifth opening 334 are within the two ends of the projection of the first opening 323. One end of the projection of the third opening 312 falls within the projection of the first opening 323, and the other end is outside the projection of the first opening 323.

[0067] The central angle of the second open slot 311 is greater than that of the third open slot 331 and less than that of the first open slot 321. The central angle of the first open slot 321 is 152.9°, the central angle of the second open slot 311 is 114°, and the central angle of the third open slot 331 is 72°. In the axial direction of the valve core 30, the two ends of the projection of the first open slot 321 are outside the two ends of the projection of the second open slot 311, and one end of the projection of the third open slot 331 falls within the projection of the first open slot 321, while the other end is outside the projection of the first open slot 321. The second open slot 311, the second through-hole 313, and the third through-hole 312 are distributed in a clockwise direction in the circumferential direction of the upper structure 31. The second open slot 311 is adjacent to the third through-hole 312 and has a gap with the second through-hole 313; the second through-hole 313 has a gap between itself and the third through-hole 312 and the second open slot 311. The third open slot 331, the fifth port 334, and the fourth port 333 are distributed sequentially in a clockwise direction around the lower structure 33. The third open slot 331 is adjacent to the fifth port 334 and spaced apart from the fourth port 333. The fourth port 333 is spaced apart from both the third open slot 331 and the fifth port 334. The central angles of the second port 313, the third port 312, and the fifth port 334 are equal, with a central angle of 30°. The central angle of the fourth port 333 is greater than that of the second port 313 and less than that of the first port 323, with a central angle of 72°. In the axial direction of the valve core 30, the two ends of the projections of the second port 313, the fourth port 333, and the fifth port 334 are within the two ends of the projection of the first port 323. One end of the projection of the third port 312 falls within the projection of the first port 323, and the other end falls outside the projection of the first port 323.

[0068] Please refer to Figure 3 The first turntable 341 and the second turntable 342 are each provided with raised ribs 343. The raised ribs 343 are provided on the top surface of the first turntable 341 and the bottom surface of the second turntable 342, and the raised ribs 343 are arranged in a ripple shape with the axis of the valve core 30 as the center. The raised ribs 343 can reduce the frictional resistance when the valve core 30 rotates, and at the same time, the raised ribs 343 also serve as guides and positions.

[0069] Please refer to Figure 12The electronic water valve 01 also includes a sealing gasket 20, which is installed between the valve housing 10 and the valve core 30. The sealing gasket 20 has through holes 21 corresponding to the first input port 11, the second input port 12, the first output port 13, the second output port 14, the third output port 15, and the fourth output port 16. Sealing ribs 22 are provided around each through hole 21. The outer wall of the sealing gasket 20 is connected to the electronic water valve 01. The sealing gasket 20 has multiple through holes 21, which are the same number, size, and position as the ports on the electronic water valve 01. The sealing ribs 22 around the through holes 21 improve the sealing effect of the sealing gasket 20 when the ports are connected to the valve core 30. The sealing ribs 22 extend axially and circumferentially around the through holes 21. The sealing ribs 22 are arranged in a crisscross pattern on the sealing gasket 20 to separate the various ports, ensuring that each port of the valve body 10 remains independent and that the electronic water valve 01 will not leak.

[0070] The sealing rib 22 is serrated. The serrated sealing rib 22 can produce large elastic deformation after being compressed, and sufficient pressure is generated between the sealing gasket 20 and the valve body 10. The sealing gasket 20 has a large conformity to the valve body 10 and the valve core 30, which improves the sealing effect of the sealing gasket 20.

[0071] The sealing gasket 20 comprises an elastic deformation layer and a low-friction layer, with the elastic deformation layer disposed on the outer periphery of the low-friction layer. The inner layer of the sealing gasket 20 is the low-friction layer, which is smooth, resulting in low friction between it and the valve core 30 during rotation, thus reducing motor torque. The outer layer of the sealing gasket 20 is the elastic deformation layer, which includes sealing ribs 22. These ribs 22 can undergo significant elastic deformation under pressure, generating sufficient pressure between the sealing gasket 20 and the valve body 10. This results in greater conformability of the sealing gasket 20 to both the valve body 10 and the valve core 30, improving the sealing effect and effectively reducing internal leakage. The elastic deformation layer and the low-friction layer can be separately molded and then composited using other processes, or they can be co-molded.

[0072] The elastic deformation layer is made of ethylene propylene diene monomer (EPDM) rubber. EPDM rubber is a copolymer of ethylene, propylene, and a small amount of non-conjugated diene; it is a type of ethylene propylene rubber, represented by EPDM (Ethylene Propylene Diene Monomer). EPDM rubber possesses excellent properties such as low cost, weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance, and a wide applicable temperature range. The density of EPDM rubber is 0.87 kg / m³. 3It can be heavily oiled and filled with fillers, thus reducing the cost of rubber products. Ethylene propylene diene monomer (EPDM) rubber lacks polarity and has low unsaturation, resulting in good resistance to various polar chemicals such as alcohols, acids, alkalis, oxidants, refrigerants, detergents, animal and vegetable oils, ketones, and esters. EPDM rubber has a wide operating temperature range, with a minimum operating temperature of -40 to -60℃. It can be used continuously at 130℃ and can be used briefly or intermittently at 150 to 200℃.

[0073] The low-friction layer is made of polytetrafluoroethylene (PTFE). PTFE is a polymer compound formed by the polymerization of tetrafluoroethylene. It possesses excellent chemical stability, corrosion resistance, sealing properties, high lubricity and non-stickiness, electrical insulation, and good anti-aging resistance. PTFE can be used for extended periods at temperatures ranging from 200 to 260°C and remains flexible even at -100°C. It is corrosion-resistant, resistant to aqua regia and all organic solvents. It has high lubricity, possessing the lowest coefficient of friction (0.04) among plastics. It is non-stick, having the lowest surface tension among solid materials and thus not adhering to any substance.

[0074] Please refer to Figure 1 The electronic water valve 01 also includes a valve cover 50 and a drive device 40. The valve cover 50 is mounted on top of the valve housing 10 and has mounting holes for connecting the drive device 40. The electronic water valve 01 includes a valve housing 10, a sealing gasket 20, a valve core 30, a valve cover 50, and a drive device 40. The valve core 30 is installed inside the valve housing 10, and the sealing gasket 20 is disposed between the valve housing 10 and the valve core 30. The valve cover 50 is mounted on top of the valve housing 10 and the valve core 30, and the drive device 40 is positioned above the valve cover 50. The valve cover 50 restricts the axial movement of the valve core 30. When the valve core 30 rotates, due to the restriction of the valve cover 50, the valve core 30 will not be displaced in the axial direction, preventing misalignment of the open slot or through-hole with the port, thus preventing fluid from flowing out of the output port or from other output ports. The valve cover 50 has mounting holes to accommodate the installation and fixation of the drive device 40. The drive device 40 can be any power source capable of driving the valve core 30, causing the valve core 30 to execute along a pre-set path. In one embodiment, the valve core 30 may also be provided with a hollow support column, which is disposed within the passage chamber 38. One end of the support column is connected to a plug, which may have a protrusion extending into the support column. The plug and the support column are engaged, facilitating the installation and removal of the plug. The other end of the support column is connected to the valve cover 50, or a connector is fitted onto the other end of the support column, through which the valve cover 50 is mounted above the valve core 30.

[0075] The technical solution of this invention provides two input ports on the valve housing 10, namely the first input port 11 and the second input port 12; the valve housing 10 also provides four output ports, namely the first output port 13, the second output port 14, the third output port 15, and the fourth output port 16. One side of the valve core 30 has, from top to bottom, sequentially connected second open slots 311, first open slots 321, and third open slots 331. The other side of the valve core 30 has a second through-hole 313 and a third through-hole 312 on the upper layer, a first through-hole 323 on the middle layer, and a fourth through-hole 333 and a fifth through-hole 334 on the lower layer. The shaft of the valve core 30 is provided with a through-chamber 38, which penetrates the upper, middle, and lower layers of the valve core 30 to connect the first through-hole 323, the second through-hole 313, the fourth through-hole 333, the third through-hole 312, and the fifth through-hole 334. The valve core 30 is rotatably mounted on the valve housing 10, allowing the first input port 11 and the second input port 12 to connect to different output ports through different open slots or ports, and the two paths do not affect each other, thus enabling the switching of different flow modes. The electronic water valve 01 of this invention offers a variety of flow circuit modes, is compatible with one-to-many continuous switching functions, and is suitable for more integrated thermal management systems.

[0076] A sealing gasket 20 is also provided between the valve housing 10 and the valve core 30. The sealing gasket 20 has through holes 21 that correspond one-to-one with the ports of the valve housing 10. The sealing gasket 20 includes an elastic deformation layer and a low-friction layer, with the low-friction layer adhering to the inner circumference of the elastic deformation layer. The low-friction layer adhering to the valve core 30 is smooth, with low friction, which can reduce the required motor torque when the valve core 30 rotates. A sealing rib 22 is provided on the side of the elastic deformation layer adhering to the valve housing 10 facing the valve housing 10. The sealing rib 22 extends along the axial and circumferential directions of the sealing gasket 20 around the through holes 21. The sealing rib 22 is serrated, and the serrated sealing rib 22 can produce large elastic deformation after being compressed, generating sufficient pressure between the sealing gasket 20 and the valve housing 10. The sealing gasket 20 has a large conformability to the valve housing 10 and the valve core 30, which improves the sealing effect of the sealing gasket 20 and can effectively reduce the internal leakage of the electronic water valve 01.

[0077] The electronic water valve 01 proposed in this invention is applied to a thermal management system, which typically serves energy storage devices (e.g., lithium-ion battery packs), traction motors, other powertrain components, and cabin environmental systems. The thermal management system also includes components for cooling fluids (i.e., radiators or coolers) and / or components for heating fluids (i.e., heaters). In different systems, fluids are transported through pathways to different components for various purposes, either heating or cooling. One type of thermal management system is a thermal system where the fluid can be water, coolant, and / or refrigerant circulated to transfer heat between two or more parts of the system. In different systems, the fluid can be another fluid suitable for the current system.

[0078] The present invention also proposes a thermal management system, which includes an electronic water valve 01. The specific structure of the electronic water valve 01 is as described in the above embodiments. Since the thermal management system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0079] The present invention also proposes a vehicle including a thermal management system. The specific structure of the thermal management system is as described in the above embodiments. Since the vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0080] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An electronic water valve, characterized in that, The electronic water valve includes: The valve housing is provided with a first input port, a second input port, a first output port, a second output port, a third output port, and a fourth output port; The valve core has a through chamber on its shaft. The valve core includes an upper structure, a middle structure, and a lower structure. The middle structure has a first open groove and a first through port. The upper structure has a second open groove, a second through port, and a third through port. The second open groove communicates with the first open groove. The lower structure has a third open groove, a fourth through port, and a fifth through port. The third open groove communicates with the first open groove. The first, second, fourth, third, and fifth through ports all communicate with the through chamber. The valve core is rotatably mounted on the valve housing, the first input port is connected to the first open slot, and the second input port is connected to the first through port; When the fourth output port is connected to the second open slot, the second output port is connected to the second through port; or the first output port is connected to the fourth through port. When the first output port is connected to the third open slot, the fourth output port is connected to the third port; or the third output port is connected to the fifth port. When the second output port is connected to the second open slot, the third output port is connected to the fifth port.

2. The electronic water valve as described in claim 1, characterized in that, The valve core is cylindrical and includes a vertical plate and a first rotating plate, a first baffle, a second baffle, and a second rotating plate connected sequentially from top to bottom to the vertical plate. The first turntable and the first baffle form the upper structure. The upper structure is provided with multiple first partitions and a surrounding plate connecting the first partitions. The surrounding plate is provided with a first opening, a second opening and a third opening. Two adjacent first partitions, the upright plate and the first opening form a second open slot. Two adjacent first partitions and the second opening form a second through-hole. Two adjacent first partitions and the third opening form the third through-hole. The first baffle and the second baffle form the middle layer structure, and the middle layer structure is provided with two second partitions, which separate the first open slot and the first through-hole; The second baffle and the second turntable form the lower structure. The lower structure is provided with multiple third partitions and a surrounding plate connecting the third partitions. The surrounding plate is provided with a fourth opening, a fifth opening and a sixth opening. Two adjacent third partitions, the upright plate and the fourth opening form the third open slot. Two adjacent third partitions and the fifth opening form the fourth through-hole. Two adjacent first partitions and the sixth opening form the fifth through-hole.

3. The electronic water valve as described in claim 2, characterized in that, The central angle of the first opening is larger than the central angle of the first open slot, and the first opening is provided with reinforcing ribs.

4. The electronic water valve as described in claim 3, characterized in that, The central angle of the second open slot is greater than that of the third open slot and less than that of the first open slot; the two ends of the projection of the first open slot are outside the two ends of the projection of the second open slot, and one end of the projection of the third open slot falls into the projection of the first open slot, while the other end is outside the projection of the first open slot.

5. The electronic water valve as described in claim 4, characterized in that, The third opening is adjacent to the second open slot, and there is a gap between the second opening and the third opening and the second open slot respectively; there is a gap between the fourth opening and the fifth opening, and the fourth opening is adjacent to the third open slot.

6. The electronic water valve as described in claim 5, characterized in that, The central angles of the second, third, and fifth openings are equal, and the central angle of the fourth opening is greater than that of the second opening and less than that of the first opening; the two ends of the projections of the second, fourth, and fifth openings are within the two ends of the projection of the first opening, and one end of the projection of the third opening falls within the projection of the first opening, while the other end is outside the projection of the first opening.

7. The electronic water valve as described in claim 6, characterized in that, The first turntable and the second turntable are respectively provided with raised ribs.

8. The electronic water valve as described in claim 7, characterized in that, The electronic water valve also includes a sealing gasket, which is installed between the valve housing and the valve core. The sealing gasket has through holes corresponding to the first input port, the second input port, the first output port, the second output port, the third output port, and the fourth output port. Sealing ribs are provided around the through holes.

9. The electronic water valve as described in claim 8, characterized in that, The sealing ribs are serrated.

10. The electronic water valve as described in claim 9, characterized in that, The sealing gasket includes an elastic deformation layer and a low friction layer, wherein the elastic deformation layer is disposed on the outer periphery of the low friction layer.

11. The electronic water valve as described in claim 10, characterized in that, The electronic water valve also includes a valve cover and a drive device. The valve cover is installed on top of the valve housing and has a mounting hole for connecting the drive device.

12. A thermal management system, characterized in that, Including the electronic water valve as described in any one of claims 1-11.

13. A vehicle, characterized in that, Includes the thermal management system as described in claim 12.

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