Multi-way valve and valve core

Abstract

The present invention discloses a multi-way valve and valve core. The multi-way valve includes a valve housing, a valve core and an inner seal. The valve housing has a valve cavity. The valve housing is provided with a central valve port and a plurality of outer valve ports. The plurality of outer valve ports are spaced around the central valve port. The central valve port is connected to the valve cavity at the bottom wall of the valve cavity, and the outer valve ports are connected to the valve cavity at the side walls of the valve cavity. The valve core is rotatably arranged in the valve cavity. The valve core is provided with a plurality of flow channels that are not connected to each other. The flow channels are connected to the outside at the side walls of the valve core, and at least one flow channel is connected to the outside at the bottom end of the valve core. The valve core can be driven to rotate between multiple positions. The inner seal is sealed between the side walls of the valve core and the side walls of the valve cavity. The inner seal is provided with an overflow port corresponding to the outer valve port. The multi-way valve and valve core of the present application are designed with respect to the valve core structure and the valve port position so that more functional modes can be realized with a smaller volume, which is conducive to meeting the lightweight requirements of automobiles.

Description

Technical Field

[0001] The present invention relates to the technical field of control valves, and in particular to a multi-way valve and a valve core. Background Art

[0002] Multi-port valves are used in vehicle thermal management systems, switching the flow of coolant when needed. With the rapid development of electric vehicles, vehicle thermal management requirements are becoming increasingly complex, and correspondingly, multi-port valves are required to meet a growing number of modes. This results in larger valve core structures, more complex flow paths, an increased number of valve ports, and a larger size. This deviates from the original intention of integrating multiple individual water valves into a single multi-port valve to reduce cost and size.

[0003] In existing multi-way valves, the valve core flow channel opening 001 is mostly arranged on the valve core circumferential wall or end surface, such as Figure 1 and Figure 2 As shown, to meet the requirements of more modes, the volume of the multi-way valve must inevitably be expanded to provide a more complex valve core design and increase the water inlet, which does not fully utilize the valve space. Therefore, considering the above-mentioned technical problems, it is necessary to propose a new technical solution. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art, and therefore proposes a new multi-way valve and valve core, the specific solution is as follows:

[0005] A multi-way valve comprises a valve housing, a valve core and an inner sealing member, wherein the valve housing has a valve cavity therein, a central valve port and a plurality of outer valve ports are provided on the valve housing, and the plurality of outer valve ports are spaced around the central valve port, the central valve port is communicated with the valve cavity at the bottom wall of the valve cavity, and the outer valve port is communicated with the valve cavity at the side wall of the valve cavity, the valve core is rotatably arranged in the valve cavity, a plurality of flow channels which are not connected to each other are provided in the valve core, the flow channels are communicated with the outside at the side wall of the valve core, and at least one of the flow channels is communicated with the outside at the bottom end of the valve core, the valve core can be driven to rotate between multiple positions, the inner sealing member is sealingly arranged between the side wall of the valve core and the side wall of the valve cavity, and the inner sealing member is provided with an overflow port corresponding to the outer valve port.

[0006] Furthermore, the outer edge valve port is arranged at the bottom end of the valve housing.

[0007] Furthermore, the valve core is disc-shaped, and a first flow channel and a second flow channel are provided in the valve core. The bottom end of the valve core is provided with a bottom flow channel opening, and the side wall of the valve core is provided with a first side flow channel opening, a second side flow channel opening and a third side flow channel opening. The bottom flow channel opening and the first side flow channel opening are respectively connected to the first flow channel, and the second side flow channel opening and the third side flow channel opening are respectively connected to the second flow channel. A first flow channel partition is formed between the second side flow channel opening and the third side flow channel opening, a second flow channel partition is formed between the first side flow channel opening and the second side flow channel opening, and a third flow channel partition is formed between the first side flow channel opening and the third side flow channel opening. The valve shell is provided with a first outer edge valve opening, a second outer edge valve opening, a third outer edge valve opening and a fourth outer edge valve opening in sequence along the circumferential direction, and the inner seal is correspondingly provided with a first flow port, a second flow port, a third flow port and a fourth flow port in sequence.

[0008] Furthermore, the bottom flow channel is fan-shaped, with the axis of the valve core as the vertex of the angle, and the angle between the two sides of the circumferential direction of the first side flow channel is L 11 The angle between the two sides of the bottom flow channel opening in the circumferential direction is L 12 The angle between the side of the second side flow channel opening away from the third side flow channel opening and the side of the third side flow channel opening away from the second side flow channel opening is L2, the angle between the two sides of the first channel opening partition in the circumferential direction is G1, the angle between the two sides of the second channel opening partition in the circumferential direction is G2, and the angle between the two sides of the third channel opening partition in the circumferential direction is G3.

[0009] The angles between the two sides of the circumferential direction of each flow opening on the inner seal are all less than or equal to G1, G2 and G3, and the angle between the side of the first flow opening adjacent to the second flow opening and the side of the third flow opening adjacent to the second flow opening is less than L 11 and L2, the angle between the side of the third flow opening adjacent to the fourth flow opening and the side of the fourth flow opening adjacent to the third flow opening is less than L 11 and L2, the angle between the side of the fourth flow opening adjacent to the first flow opening and the side of the first flow opening adjacent to the fourth flow opening is less than L 11 and L2.

[0010] Furthermore, the central valve opening is fan-shaped, and the angle between the two sides of the central valve opening in the circumferential direction is KD1, KD1+L 12 >360°.

[0011] Furthermore, the angle between the side of the first flow opening away from the second flow opening and the side of the third flow opening away from the second flow opening is less than or equal to L 11 and L2.

[0012] Furthermore, the interval between the first flow opening and the second flow opening is equal to the interval between the third flow opening and the second flow opening.

[0013] Furthermore, G2=G3.

[0014] Furthermore, G1=G2=G3.

[0015] Furthermore, L 11 =L2.

[0016] Furthermore, the angle between the first outer edge valve port and the second outer edge valve port and the angle between the third outer edge valve port and the second outer edge valve port are 40 degrees respectively, the angle between the first outer edge valve port and the fourth outer edge valve port and the angle between the third outer edge valve port and the fourth outer edge valve port are 140 degrees respectively, KD1 is 200 degrees, L 11 is 130°, G1, G2 and G3 are 50° respectively, the angle between the two sides of the second side flow channel opening in the circumferential direction and the angle between the two sides of the third side flow channel opening in the circumferential direction are 40° respectively, L 12 The angle between the two sides of each flow opening on the inner seal in the circumferential direction is 20°, the angle between the side of the first flow opening adjacent to the second flow opening and the side of the second flow opening adjacent to the first flow opening, and the angle between the side of the third flow opening adjacent to the second flow opening and the side of the second flow opening adjacent to the third flow opening are 30° respectively, the angle between the side of the first flow opening adjacent to the fourth flow opening and the side of the fourth flow opening adjacent to the first flow opening, and the angle between the side of the third flow opening adjacent to the fourth flow opening and the side of the fourth flow opening adjacent to the third flow opening are 110° respectively.

[0017] Furthermore, it also includes a cover plate, the upper end of the valve housing is provided with an installation port, the installation port is communicated with the valve cavity, the cover plate sealing cover is provided at the installation port, and the cover plate is fixedly connected to the valve housing.

[0018] Furthermore, a rotating shaft structure is provided at the upper end of the valve core, the rotating shaft structure is coaxially arranged with the valve core, the rotating shaft structure passes through the cover plate, the rotating shaft structure and the cover plate are sealed, and the rotating shaft structure can be driven by a driving component to drive the valve core to rotate.

[0019] Furthermore, a limiting structure capable of limiting the rotation of the valve core is provided between the valve core and the valve housing.

[0020] Furthermore, the limiting structure includes a first limiting protrusion and a second limiting protrusion, the first limiting protrusion is arranged at the bottom end of the valve core, and the second limiting protrusion is arranged on the bottom wall of the valve cavity, the second limiting protrusion can stop and limit the second limiting protrusion in the circumferential direction of the valve core, and the inner seal is provided with a slot structure that cooperates with the second limiting protrusion.

[0021] Furthermore, the inner sealing member is provided with an opening, and the opening passes through the top end and the bottom end of the inner sealing member.

[0022] Furthermore, the bottom end of the valve housing is also provided with an external sealing member for sealing with the external environment.

[0023] A valve core is disc-shaped, wherein a plurality of mutually unconnected flow channels are arranged inside the valve core, wherein the flow channels are connected to the outside at the side wall of the valve core, and at least one of the flow channels is connected to the outside at the bottom end of the valve core.

[0024] Compared with the prior art, the multi-way valve and valve core of the present application have at least one or more of the following beneficial effects:

[0025] The multi-way valve and valve core of the present application are designed with respect to the valve core structure and valve port position, so that more functional modes can be realized with a smaller volume, which is conducive to meeting the requirements of lightweight automobiles;

[0026] The multi-way valve and valve core of the present application arrange the outer valve port flow channel along the circumference of the shell and set the central valve port at the bottom of the shell, which can fully utilize the space of the valve shell;

[0027] The multi-way valve and valve core of the present application may not have a complete ring shape, and may be provided with an opening on it, which is more conducive to part mold opening. In terms of technology, the inner seal can be designed into a curved shape (annular expansion), and the inner seal can be bent during assembly to be inserted into the valve housing and valve cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 and Figure 2 They are respectively schematic diagrams of the valve core structure of the existing multi-way valve;

[0029] Figure 3 A schematic side view of the multi-way valve provided in an embodiment of the present application;

[0030] Figure 4 A schematic diagram of the exploded structure of a multi-way valve provided in an embodiment of the present application;

[0031] Figure 5 A bottom-up structural diagram of a multi-way valve provided in an embodiment of the present application;

[0032] Figure 6A schematic diagram of a vertical cross-sectional structure of a multi-way valve provided in an embodiment of the present application;

[0033] Figure 7 A schematic diagram of the three-dimensional structure of a multi-way valve housing provided in an embodiment of the present application;

[0034] Figure 8 A schematic diagram of a vertical cross-sectional structure of a multi-way valve housing provided in an embodiment of the present application;

[0035] Figure 9 A schematic diagram of the three-dimensional structure of a multi-way valve core provided in an embodiment of the present application;

[0036] Figure 10 A schematic diagram of a transverse cross-sectional structure of a multi-way valve housing provided in an embodiment of the present application;

[0037] Figure 11 A schematic diagram of the three-dimensional structure of the inner seal of a multi-way valve provided in an embodiment of the present application;

[0038] Figure 12 A schematic diagram of a transverse cross-sectional structure of a multi-way valve provided in an embodiment of the present application;

[0039] Figure 13 A schematic diagram of a transverse cross-sectional structure of the multi-way valve provided in an embodiment of the present application when in mode 1;

[0040] Figure 14 A schematic diagram of a transverse cross-sectional structure of the multi-way valve provided in an embodiment of the present application when in mode 2;

[0041] Figure 15 A schematic diagram of a transverse cross-sectional structure of the multi-way valve provided in an embodiment of the present application when in mode three;

[0042] Figure 16 A schematic diagram of a transverse cross-sectional structure of the multi-way valve provided in an embodiment of the present application when in mode 4;

[0043] Figure 17 A schematic diagram of a transverse cross-sectional structure of the multi-way valve provided in an embodiment of the present application when in mode five;

[0044] Figure 18 This is a schematic diagram of the transverse cross-sectional structure of the multi-way valve provided in an embodiment of the present application when it is in mode six.

[0045] Among them, 001-valve core flow channel, 1-valve housing, 10-outer edge valve port flow channel, 11-center valve port, 12-first outer edge valve port, 13-second outer edge valve port, 14-third outer edge valve port, 15-fourth outer edge valve port, 16-installation port, 17-second limiting protrusion, 18-fastening part, 19-matching groove, 20-plate structure, 2-valve core, 21-first flow channel, 211-bottom flow channel port, 212-first side flow channel port, 22-second flow channel, 221-second side flow channel port, 222-third side flow channel port, 23-first channel partition, 24-first Second passage dividing portion, 25-third passage dividing portion, 26-rotating shaft structure, 261-limiting convex ring structure, 2611-stop surface, 262-tooth, 27-first limiting protrusion, 28-pin shaft structure, 3-inner seal, 31-first flow port, 32-second flow port, 33-third flow port, 34-fourth flow port, 35-slot structure, 36-opening, 4-cover plate, 5-outer seal, 6-fastener, 71-first seal, 72-second seal, 73-third seal, 81-first bearing, 82-second bearing, 9-driving component. DETAILED DESCRIPTION

[0046] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0047] Example

[0048] This embodiment provides a multi-way valve, which mainly includes a valve housing 1, a valve core 2 and an inner sealing member 3. Figures 3 to 6 shown.

[0049] The valve housing 1 has a valve cavity therein. The valve housing 1 is provided with a central valve port 11 and a plurality of peripheral valve ports. Preferably, the central valve port 11 and the plurality of peripheral valve ports are both provided at the bottom end of the valve housing 1, and the plurality of peripheral valve ports are spaced apart around the central valve port 11. The central valve port 11 is connected to the valve cavity at the bottom wall of the valve cavity. The peripheral valve port is connected to the valve cavity at the side wall of the valve cavity, that is, a peripheral valve port flow channel 10 is provided around the valve cavity along the circumferential direction of the shell, one flow port of the peripheral valve port flow channel 10 is connected to the valve cavity, and the other flow port is connected to the outside at the bottom end of the valve housing 1, forming the peripheral valve port. Preferably, a plate-like structure 20 is formed near the bottom end of the valve housing 1, which can be easily fixedly connected to the mounting surface. The peripheral valve port flow channel 10 is preferably in the shape of a "7", that is, the peripheral valve port is provided on the plate-like structure 20. Figures 3 to 8A five-way valve is schematically shown in the figure, that is, a central valve port 11 and four peripheral valve ports are provided at the bottom end of the valve housing 1, that is, four peripheral valve port flow channels 10 are provided around the valve cavity. In this way, the peripheral valve port flow channels 10 are arranged along the circumference of the shell, and the central valve port 11 is provided at the bottom end of the shell, so that the space of the valve housing 1 can be fully utilized. The valve housing 1 is preferably provided with a mounting port 16 at its upper end, and the mounting port 16 is connected to the valve cavity. A cover plate 4 is provided on the sealing cover at the mounting port 16, and the cover plate 4 is fixedly connected to the valve housing 1, and the fixing method is preferably to fasten it with fasteners 6 such as screws, such as Figure 7 As schematically shown in FIG, the valve housing 1 is provided with a plurality of fastening portions 18 surrounding the valve cavity. The top of the fastening portion 18 is provided with a fixing hole. The cover plate 4 and the valve housing 1 can be fixedly connected by fasteners 6 such as screws passing through the cover plate 4 and fastening them to the corresponding fixing holes. In order to improve the sealing performance of the cover plate 4, a sealing member is preferably provided between the cover plate 4 and the valve housing 1, which is defined as a first sealing member 71. The first sealing member 71 can be, for example, Figure 6 The cover plate 4 can be used as a bracket to carry the driving component 9.

[0050] The valve core 2 is preferably disc-shaped and rotatably arranged in the valve cavity. Preferably, a rotating shaft structure 26 is provided at the upper end of the valve core 2, and the rotating shaft structure 26 is coaxially arranged with the valve core 2, such as Figure 9 As shown. The shaft structure 26 passes through the cover plate 4. The shaft structure 26 and the cover plate 4 are sealed and can be driven by the driving component 9 to drive the valve core 2 to rotate. Figure 6 As shown, schematically shown in the figure, the bottom side of the cover plate 4 is provided with a receiving groove corresponding to the rotating shaft structure 26, the top wall of the receiving groove is provided with a through opening, and the diameter of the through opening is smaller than the inner diameter of the receiving groove, and the rotating shaft structure 26 passes through the cover plate 4 through the through opening. The rotating shaft structure 26 and the receiving groove are rotatably connected through a bearing, and the bearing is defined as a first bearing 81. In order to ensure the airtightness of the valve housing 1, it is preferred that sealing members are respectively provided on the upper and lower sides of the first bearing 81 to seal the gap between the rotating shaft structure 26 and the receiving groove, which are defined as a second sealing member 72 and a third sealing member 73, respectively. The second sealing member 72 and the third sealing member 73 are preferably sealing rings, such as 6 and Figure 9As schematically shown in the figure, a limiting convex ring structure 261 can be provided on the outer wall of the rotating shaft structure 26, thereby forming a stop surface 2611 on the circumferential wall of the rotating shaft structure 26. The second seal 72, the first bearing 81, and the third seal 73 are sequentially sleeved on the rotating shaft structure 26. During assembly, the stop surface 2611 and the top wall of the accommodating groove will constrain the second seal 72, the first bearing 81, and the third seal 73, thereby causing the second seal 72 and the third seal 73 to deform under pressure and achieve sealing. A pin structure 28 is provided at the bottom end of the valve core 2, and a matching groove 19 is provided at the axis center of the valve cavity bottom wall of the valve housing 1. The pin structure 28 and the matching groove 19 are rotatably connected via a bearing, which is defined as the second bearing 82.

[0051] Preferably, the end of the rotating shaft structure 26 is configured to be gear-shaped, and the length direction of the teeth 262 is consistent with the axial direction of the rotating shaft structure 26, such as Figure 9 As shown, it is ensured that after the assembly is completed, it can be connected to the driving component 9 in a transmission manner, so that the valve core 2 can be driven to rotate under the drive of the driving component 9. The driving component 9 can be, for example, an actuator, which is preferably fixedly arranged on the cover plate 4. The driving spindle of the actuator is sleeved on the rotating shaft structure 26. When the actuator receives an external input signal, it can drive the valve core 2 to rotate to a set angle, thereby switching the flow direction of the coolant to achieve switching between different working modes. It should be noted that the actuator is an existing product, and its specific structure is not the focus of protection of this application, so the specific structure of the actuator is not described in detail in this embodiment. Of course, the driving component 9 is not limited to one type of actuator, and can also be any other driving structure.

[0052] A limiting structure capable of limiting the rotation of the valve core 2 is provided between the valve core 2 and the valve housing 1. The limiting structure preferably includes a first limiting protrusion 27 and a second limiting protrusion 17, and the first limiting protrusion 27 is provided at the bottom end of the valve core 2. Figure 8 As shown, the second limiting protrusion 17 is provided on the bottom wall of the valve cavity. Figure 9 Along the circumferential direction of the valve core 2, one side of the first limiting protrusion 27 can abut against one side of the second limiting protrusion 17. After the valve core 2 rotates a certain angle, the other side of the first limiting protrusion 27 can abut against the other side of the second limiting protrusion 17, thereby enabling the second limiting protrusion 17 to stop and limit the first limiting protrusion 27 in the rotation direction of the valve core 2, ensuring that the valve core 2 can only rotate within a preset angle range, preventing it from rotating excessively, and facilitating positioning or calibration of the actuator.

[0053] The valve core 2 is provided with a plurality of flow channels that are not connected to each other. The flow channels are connected to the outside at the side wall of the valve core 2, and at least one of the flow channels is connected to the outside at the bottom end of the valve core 2. The valve core 2 can be driven to rotate between multiple positions. Taking a five-way valve as an example, the valve core 2 is provided with a first flow channel 21 and a second flow channel 22. The bottom end of the valve core 2 is provided with a bottom flow channel opening 211. Figure 9 and Figure 10 As shown. The side wall of the valve core 2 is provided with three flow channel openings, which are respectively defined as the first side flow channel opening 212, the second side flow channel opening 221 and the third side flow channel opening 222. The bottom flow channel opening 211 and the first side flow channel opening 212 are respectively connected to the first flow channel 21, and the second side flow channel opening 221 and the third side flow channel opening 222 are respectively connected to the second flow channel 22. The partition formed between the second side flow channel opening 221 and the third side flow channel opening 222 is defined as the first flow channel partition 23, the partition formed between the first side flow channel opening 212 and the second side flow channel opening 221 is defined as the second flow channel partition 24, and the partition formed between the first side flow channel opening 212 and the third side flow channel opening 222 is defined as the third flow channel partition 25. The four outer edge valve openings are defined in sequence along the circumferential direction of the valve housing 1 as the first outer edge valve opening 12, the second outer edge valve opening 13, the third outer edge valve opening 14 and the fourth outer edge valve opening 15, as shown Figure 5 shown.

[0054] The inner seal 3 is annular and is sealed between the side wall of the valve core 2 and the side wall of the valve cavity. The inner seal 3 is provided with a flow port corresponding to the outer valve port. Taking the five-way valve as an example, the four flow ports provided on the corresponding positions of the inner seal 3 are defined as the first flow port 31, the second flow port 32, the third flow port 33 and the fourth flow port 34. Figure 11 and Figure 12 Preferably, the inner seal 3 is provided with an opening 36, and the opening 36 passes through the top and bottom ends of the inner seal 3, as shown. Figure 11 As shown, the inner seal 3 is an incomplete ring, which is more conducive to part mold opening. In terms of technology, the inner seal 3 can be designed into a curved shape (annular expansion). During assembly, the inner seal 3 is bent and inserted into the valve cavity of the valve housing 1. The inner wall of the inner seal 3 abuts the valve core 2, and the outer wall of the inner seal 3 abuts the side wall of the valve cavity, thereby achieving a sealing effect between the various flow channels. The inner seal 3 is preferably provided with a slot structure 35 that cooperates with the second limiting protrusion 17 to prevent the inner seal 3 from rotating in the valve cavity.

[0055] In a further embodiment, the bottom flow channel 211 is preferably fan-shaped. With the axis of the valve core 2 as the vertex of the angle, the angle between the two sides of the circumferential direction of the first side flow channel 212 is defined as L 11 The angle between the two sides of the bottom flow channel opening 211 in the circumferential direction is L 12 , the angle between the side of the second side flow channel 221 away from the third side flow channel 222 and the side of the third side flow channel 222 away from the second side flow channel 221 is L2, the angle between the two sides of the first channel dividing portion 23 in the circumferential direction is G1, the angle between the two sides of the second channel dividing portion 24 in the circumferential direction is G2, and the angle between the two sides of the third channel dividing portion 25 in the circumferential direction is G3. The angles between the two sides of the flow openings on the inner seal 3 in the circumferential direction are all less than or equal to G1, G2 and G3. The angle between the side of the first flow opening 31 adjacent to the second flow opening 32 and the side of the third flow opening 33 adjacent to the second flow opening 32 is less than L 11 The central valve port 11 is preferably fan-shaped, and the angle between the side of the third flow port 33 adjacent to the fourth flow port 34 and the side of the fourth flow port 34 adjacent to the third flow port 33 is less than L 11 The angle between the side of the fourth flow opening 34 adjacent to the first flow opening 31 and the side of the first flow opening 31 adjacent to the fourth flow opening 34 is less than L 11 The central valve opening 11 is preferably fan-shaped, and the angle between the two sides of the central valve opening 11 in the circumferential direction is defined as KD1. Preferably KD1+L 12 >360°, which can ensure that the bottom flow channel opening 211 can be connected to the central valve opening 11 under any circumstances.

[0056] Preferably, the angle between the side of the first flow opening 31 away from the second flow opening 32 and the side of the third flow opening 33 away from the second flow opening 32 is less than or equal to L 11 and L2. Preferably, the interval between the first flow opening 31 and the second flow opening 32 is equal to the interval between the third flow opening 33 and the second flow opening 32. Preferably, G2=G3, and further preferably, G1=G2=G3. Preferably, L 11 =L2.

[0057] Furthermore, the bottom end of the valve housing 1 is also provided with an outer sealing member 5 for sealing with the external environment. Figure 6 or Figure 8As schematically shown in FIG, a sealing groove is provided at the bottom end of the valve housing 1, and the outer sealing member 5 is preferably a sealing gasket, which is disposed in the sealing groove. Preferably, the outer sealing member 5 is a sealing gasket, and the sealing gasket slightly protrudes from the bottom end of the valve housing 1, so that when the valve housing 1 is fixed in the installation position, it can seal the multi-way valve from the external environment.

[0058] In a further preferred embodiment, the angle between the first outer edge valve port 12 and the second outer edge valve port 13 and the angle between the third outer edge valve port 14 and the second outer edge valve port 13 are 40 degrees, the angle between the first outer edge valve port 12 and the fourth outer edge valve port 15 and the angle between the third outer edge valve port 14 and the fourth outer edge valve port 15 are 140 degrees, KD1 is 200 degrees, L 11 is 130°, G1, G2 and G3 are 50° respectively, the angle between the two sides of the second side flow channel 221 in the circumferential direction and the angle between the two sides of the third side flow channel 222 in the circumferential direction are 40° respectively, L 12 The angle between the two sides of each flow opening on the inner seal 3 in the circumferential direction is 20°, the angle between the side of the first flow opening 31 adjacent to the second flow opening 32 and the side of the second flow opening 32 adjacent to the first flow opening 31, as well as the angle between the side of the third flow opening 33 adjacent to the second flow opening 32 and the side of the second flow opening 32 adjacent to the third flow opening 33 are 30° respectively, the angle between the side of the first flow opening 31 adjacent to the fourth flow opening 34 and the side of the fourth flow opening 34 adjacent to the first flow opening 31, as well as the angle between the side of the third flow opening 33 adjacent to the fourth flow opening 34 and the side of the fourth flow opening 34 adjacent to the third flow opening 33 are 110° respectively.

[0059] To save space, only six modes of the above-mentioned five-way valve are listed below as examples, and the remaining modes can be derived based on the structure.

[0060] like Figure 13 As shown, assuming that this position is the initial position of the valve core 2, that is, the five-way valve is in mode 1, at this time, the third outer valve port 14 and the fourth outer valve port 15 are respectively connected to the first flow channel 21 through the first side flow channel port 212, and the central valve port 11 is connected to the first flow channel 21 through the bottom flow channel port 211. In a specific implementation, assuming that the coolant enters the valve housing 1 from the fourth outer valve port 15, the coolant flows into the first flow channel 21 through the first side flow channel port 212, and is divided into two parts. A part of the coolant flows out of the third outer valve port 14 through the first side flow channel port 212, and the other part of the coolant flows out of the central valve port 11 through the bottom flow channel port 211;

[0061] The valve core 2 rotates 15° counterclockwise from the mode 1 state. Figure 14 As shown, the five-way valve is in mode 2 at this time. The fourth outer valve port 15 is connected to the first flow channel 21 through the first side flow channel port 212, and the central valve port 11 is connected to the first flow channel 21 through the bottom flow channel port 211. In a specific implementation, assuming that the coolant enters the valve housing 1 from the fourth outer valve port 15, the coolant flows into the first flow channel 21 through the first side flow channel port 212, and then flows out of the central valve port 11 through the bottom flow channel port 211;

[0062] The valve core 2 rotates 60° counterclockwise from the mode 1 state. Figure 15 As shown, at this time, the five-way valve is in mode three, the first outer valve port 12 is connected to the second flow channel 22 through the second side flow channel port 221, the third outer valve port 14 is connected to the second flow channel 22 through the third side flow channel port 222, and the central valve port 11 is connected to the first flow channel 21 through the bottom flow channel port 211. In a specific implementation, assuming that the coolant enters the valve housing 1 from the fourth outer valve port 15, the coolant flows into the first flow channel 21 through the first side flow channel port 212, and then flows out of the central valve port 11 through the bottom flow channel port 211, completing cycle one; assuming that the coolant also enters the valve housing 1 from the third outer valve port 14, the coolant flows into the second flow channel 22 through the third side flow channel port 222, and then flows out of the first outer valve port 12 through the second side flow channel port 221, completing cycle two;

[0063] The valve core 2 rotates 200° counterclockwise from the mode 1 state, as shown in FIG. Figure 16 As shown, at this time, the five-way valve is in mode 4. The first outer valve port 12 and the second outer valve port 13 are respectively connected to the first flow channel 21 through the first side flow channel port 212, and the central valve port 11 is connected to the first flow channel 21 through the bottom flow channel port 211. In a specific implementation, assuming that the coolant enters the valve housing 1 through the second outer valve port 13, the coolant flows into the first flow channel 21 through the first side flow channel port 212, and is split into two parts. A portion of the coolant flows out of the first outer valve port 12 through the first side flow channel port 212, and another portion of the coolant flows out of the central valve port 11 through the bottom flow channel port 211.

[0064] The valve core 2 rotates 240° counterclockwise from the mode 1 state. Figure 17As shown, at this time, the five-way valve is in mode five. The first outer valve port 12, the second outer valve port 13, and the third outer valve port 14 are respectively connected to the first flow channel 21 through the first side flow channel port 212, and the central valve port 11 is connected to the first flow channel 21 through the bottom flow channel port 211. In a specific implementation, assuming that the coolant enters the valve housing 1 from the second outer valve port 13, the coolant flows into the first flow channel 21 through the first side flow channel port 212, and is split into two parts. A portion of the coolant flows out of the first outer valve port 12 through the first side flow channel port 212, a portion of the coolant flows out of the third outer valve port 14 through the first side flow channel port 212, and another portion of the coolant flows out of the central valve port 11 through the bottom flow channel port 211.

[0065] The valve core 2 rotates 280° counterclockwise from the mode 1 state. Figure 18 As shown, at this time, the five-way valve is in mode six. The second outer valve port 13 and the third outer valve port 14 are respectively connected to the first flow channel 21 through the first side flow channel port 212, and the central valve port 11 is connected to the first flow channel 21 through the bottom flow channel port 211. In a specific implementation, it is assumed that the coolant enters the valve housing 1 through the second outer valve port 13, flows into the first flow channel 21 through the first side flow channel port 212, and is split into two parts. A portion of the coolant flows out of the third outer valve port 14 through the first side flow channel port 212, and another portion of the coolant flows out of the central valve port 11 through the bottom flow channel port 211.

[0066] Compared with the prior art, the multi-way valve and valve core of the present application have at least one or more of the following beneficial effects: the multi-way valve and valve core of the present application are designed for the structure of the valve core 2 and the position of the valve port, so that more functional modes can be achieved with a smaller volume, which is conducive to meeting the lightweight requirements of automobiles; the outer valve port flow channel 10 is arranged along the circumference of the shell, and the central valve port 11 is provided at the bottom end of the shell, which can make full use of the space of the valve shell 1; the inner seal 3 may not be a complete ring, and an opening 36 may be provided on it, which is more conducive to part mold opening. In terms of process, the inner seal 3 can be designed to be a curved surface shape (annular expansion), and the inner seal 3 can be bent during assembly to be inserted into the valve cavity of the valve shell 1.

[0067] As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0068] In this document, directional terms such as front, back, top, and bottom are defined based on the positions of components in the accompanying drawings and relative to each other, and are intended only for clarity and convenience in describing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0069] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-way valve, characterized in that: It comprises a valve housing (1), a valve core (2) and an inner sealing member (3), wherein the valve housing (1) has a valve cavity therein, a central valve port (11) and a plurality of outer valve ports are provided on the valve housing (1), the plurality of outer valve ports are spaced around the central valve port (11), the central valve port (11) is connected to the valve cavity at the bottom wall of the valve cavity, the outer valve ports are connected to the valve cavity at the side wall of the valve cavity, the valve core (2) is rotatably provided in the valve cavity, a plurality of mutually unconnected flow channels are provided in the valve core (2), the flow channels are connected to the outside at the side wall of the valve core (2), and at least one of the flow channels is connected to the outside at the bottom end of the valve core (2), the valve core (2) can be driven to rotate between a plurality of positions, the inner sealing member (3) is sealingly provided between the side wall of the valve core (2) and the side wall of the valve cavity, and the inner sealing member (3) is provided with an overflow port corresponding to the outer valve port; The valve core (2) is disc-shaped, and a first flow channel (21) and a second flow channel (22) are provided in the valve core (2). A bottom flow channel opening (211) is provided at the bottom end of the valve core (2), and a first side flow channel opening (212), a second side flow channel opening (221), and a third side flow channel opening (222) are provided on the side wall of the valve core (2). The bottom flow channel opening (211) and the first side flow channel opening (212) are respectively communicated with the first flow channel (21), the second side flow channel opening (221) and the third side flow channel opening (222) are respectively communicated with the second flow channel (22). 22), a first channel dividing portion (23) is formed between the first side channel opening (212) and the second side channel opening (221), a second channel dividing portion (24) is formed between the first side channel opening (212) and the third side channel opening (222), a third channel dividing portion (25) is formed between the first side channel opening (212) and the third side channel opening (222), the valve housing (1) is provided with a first outer edge valve opening (12), a second outer edge valve opening (13), a third outer edge valve opening (14) and a fourth outer edge valve opening (15) in sequence along the circumferential direction, and the inner sealing member (3) is provided with a first flow port (31), a second flow port (32), a third flow port (33) and a fourth flow port (34) in sequence accordingly; The bottom flow channel opening (211) is fan-shaped, with the axis of the valve core (2) as the vertex of the angle, and the angle between the two sides of the first side flow channel opening (212) in the circumferential direction is L 11 The angle between the two sides of the bottom flow channel opening (211) in the circumferential direction is L 12 The angle between the side of the second side flow channel opening (221) away from the third side flow channel opening (222) and the side of the third side flow channel opening (222) away from the second side flow channel opening (221) is L2, the angle between the two sides of the first channel opening partition (23) in the circumferential direction is G1, the angle between the two sides of the second channel opening partition (24) in the circumferential direction is G2, and the angle between the two sides of the third channel opening partition (25) in the circumferential direction is G3. The angles between the two sides of the circumferential direction of each flow opening on the inner seal (3) are all less than or equal to G1, G2 and G3, and the angle between the side of the first flow opening (31) adjacent to the second flow opening (32) and the side of the third flow opening (33) adjacent to the second flow opening (32) is less than L 11 and L2, the angle between the side of the third flow opening (33) adjacent to the fourth flow opening (34) and the side of the fourth flow opening (34) adjacent to the third flow opening (33) is less than L 11 and L2, the angle between the side of the fourth flow opening (34) adjacent to the first flow opening (31) and the side of the first flow opening (31) adjacent to the fourth flow opening (34) is less than L 11 and L2; It also includes a cover plate (4), an upper end of the valve housing (1) is provided with a mounting port (16), the mounting port (16) is communicated with the valve cavity, a sealing cover of the cover plate (4) is provided at the mounting port (16), and the cover plate (4) is fixedly connected to the valve housing (1).

2. The multi-way valve according to claim 1, characterized in that The outer edge valve port is arranged at the bottom end of the valve housing (1).

3. The multi-way valve according to claim 1, characterized in that The central valve opening (11) is fan-shaped, and the angle between the two sides of the central valve opening (11) in the circumferential direction is KD1, KD1+L 12 >360°.

4. The multi-way valve according to claim 1, wherein: The angle between the side of the first flow opening (31) away from the second flow opening (32) and the side of the third flow opening (33) away from the second flow opening (32) is less than or equal to L 11 and L2.

5. The multi-way valve according to claim 1, characterized in that The interval between the first flow opening (31) and the second flow opening (32) is equal to the interval between the third flow opening (33) and the second flow opening (32).

6. The multi-way valve according to claim 1, characterized in that G2=G3.

7. The multi-way valve according to claim 6, characterized in that G1=G2=G3.

8. The multi-way valve according to claim 1, wherein: L 11 = L2.

9. The multi-way valve according to claim 3, characterized in that: The included angle between the first outer edge valve port (12) and the second outer edge valve port (13) and the included angle between the third outer edge valve port (14) and the second outer edge valve port (13) are 40°, the included angle between the first outer edge valve port (12) and the fourth outer edge valve port (15) and the included angle between the third outer edge valve port (14) and the fourth outer edge valve port (15) are 140°, KD1 is 200°, L 11 is 130°, G1, G2 and G3 are 50° respectively, the angle between the two sides of the second side flow channel opening (221) in the circumferential direction and the angle between the two sides of the third side flow channel opening (222) in the circumferential direction are 40° respectively, L 12 The angle between the two sides of each flow opening on the inner seal (3) in the circumferential direction is 20°, the angle between the side of the first flow opening (31) adjacent to the second flow opening (32) and the side of the second flow opening (32) adjacent to the first flow opening (31) and the angle between the side of the third flow opening (33) adjacent to the second flow opening (32) and the side of the second flow opening (32) adjacent to the third flow opening (33) are 30° respectively, the angle between the side of the first flow opening (31) adjacent to the fourth flow opening (34) and the side of the fourth flow opening (34) adjacent to the first flow opening (31) and the angle between the side of the third flow opening (33) adjacent to the fourth flow opening (34) and the side of the fourth flow opening (34) adjacent to the third flow opening (33) are 110° respectively.

10. The multi-way valve according to claim 1, wherein: A rotating shaft structure (26) is provided at the upper end of the valve core (2), the rotating shaft structure (26) is coaxially arranged with the valve core (2), the rotating shaft structure (26) passes through the cover plate (4), and a sealing arrangement is provided between the rotating shaft structure (26) and the cover plate (4). The rotating shaft structure (26) can be driven by a driving component (9) to drive the valve core (2) to rotate.

11. The multi-way valve according to claim 1 or 2, characterized in that: A limiting structure capable of limiting the rotation of the valve core (2) is provided between the valve core (2) and the valve housing (1).

12. The multi-way valve according to claim 11, characterized in that The limiting structure includes a first limiting protrusion (27) and a second limiting protrusion (17), wherein the first limiting protrusion (27) is arranged at the bottom end of the valve core (2), and the second limiting protrusion (17) is arranged on the bottom wall of the valve cavity, and the second limiting protrusion (17) can stop and limit the second limiting protrusion (17) in the circumferential direction of the valve core (2), and the inner sealing component (3) is provided with a slot structure (35) that cooperates with the second limiting protrusion (17).

13. The multi-way valve according to claim 1 or 2, characterized in that: The inner sealing member (3) is provided with an opening (36), and the opening (36) passes through the top end and the bottom end of the inner sealing member (3).

14. The multi-way valve according to claim 1 or 2, characterized in that: The bottom end of the valve housing (1) is also provided with an outer sealing member (5) for achieving sealing with the external environment.

15. A valve core, characterized in that: It is disc-shaped, and a plurality of mutually unconnected flow channels are provided in the valve core (2). The flow channels are connected to the outside at the side wall of the valve core (2), and at least one of the flow channels is connected to the outside at the bottom end of the valve core (2).

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