Multi-way valve

Abstract

A multi-way valve relates to the field of valve technology, comprising a valve body device, a valve core device and a sealing member; along the axial direction of the valve core device, the valve core device comprises a corresponding first end and a second end, and the valve body device comprises a corresponding first end and a second end; the first end of the valve core device cooperates with the first end of the valve body device through a sealing member; the first end of the valve core device is provided with a plurality of valve core flow channels that are not connected to each other; the first end of the valve body device is provided with a plurality of external flow channel openings that can be connected to the valve core flow channels; the sealing member is provided with sealed flow channel through holes corresponding to the external flow channel openings; the multi-way valve has a plurality of rotational working positions; when the valve core device rotates to each rotational working position, at least two external flow channel openings can be connected to one of the valve core flow channels. The purpose of the present invention is to provide a multi-way valve to, to a certain extent, solve the technical problems in the prior art of complex pipelines and high costs caused by a large number of valves.

Description

Technical Field

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

[0002] With the integration of heat exchange systems such as motor cooling, battery heating and cooling, and passenger compartment heating in new energy vehicles, the requirements for coolant control valves in the heat exchange system are increasing. A new energy vehicle may need 3 to 5 control valves, and the pipelines are complex and the cost is high. Summary of the Invention

[0003] The object of the present invention is to provide a multi-way valve to solve, to a certain extent, the technical problems in the prior art of complex piping and high cost caused by a large number of valves.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] A multi-way valve comprises a valve body device, a valve core device and a sealing member; the valve core device is rotatably arranged in the inner cavity of the valve body device, and the sealing member is relatively fixedly arranged in the inner cavity of the valve body device;

[0006] Along the axial direction of the valve core device, the valve core device includes a corresponding first end and a second end, and the valve body device includes a corresponding first end and a second end; the first end of the valve core device is matched with the first end of the valve body device through the sealing member, and the second end of the valve core device is matched with the second end of the valve body device;

[0007] The first end of the valve core device is provided with a plurality of valve core flow channels that are not connected to each other; the first end of the valve body device is provided with a plurality of external flow channel openings that can be connected to the valve core flow channels; the sealing member is provided with sealing flow channel through holes corresponding to the external flow channel openings;

[0008] The multi-way valve has a plurality of rotational working positions; when the valve core device rotates to each rotational working position, at least two of the external flow channel openings can be communicated with one of the valve core flow channels.

[0009] Optionally, the valve core device includes a valve core body; along the axial direction of the valve core device, a first end of the valve core body is provided with a plurality of valve core flow channels; the corresponding second end of the valve core body cooperates with the second end of the valve body device.

[0010] Optionally, the valve core device further comprises a valve core cover; the valve core cover is sealed and fixedly connected to the first end of the valve core body;

[0011] The valve core cover is provided with a plurality of cover flow channel through holes; each valve core flow channel is connected to at least two of the cover flow channel through holes;

[0012] The sealing member is arranged between the first end of the valve body device and the valve core cover;

[0013] When the valve core device rotates to each rotational working position, at least two of the external flow channel openings can be communicated with at least two mutually communicated cover body flow channel through holes.

[0014] Optionally, a valve core rotation limiting structure for limiting the rotation angle of the valve core device is provided between the valve body device and the valve core body;

[0015] The valve core rotation limiting structure includes a valve body rotation limiting stop block arranged on the valve body device and a valve core rotation limiting stop block arranged on the valve core body; along the circumference of the valve core device, one end of the valve core rotation limiting stop block can abut against one end of the valve body rotation limiting stop block, and the other end of the valve core rotation limiting stop block can abut against the other end of the valve body rotation limiting stop block.

[0016] Optionally, a rotation-stop structure for preventing the sealing member from rotating is provided between the valve body device and the sealing member.

[0017] Optionally, the anti-rotation structure includes a valve body rib provided on the inner surface of the valve body device and a sealing protrusion provided on one side of the sealing member, and the other side of the sealing member is a plane;

[0018] Adjacent valve body ribs form a valve body anti-rotation groove for accommodating the sealing protrusion;

[0019] The inner surface of the sealing protrusion corresponding to the sealing flow channel through hole is provided with one or more sealing ribs; the plurality of sealing ribs are arranged in sequence along the axial direction of the valve core device; the sealing ribs extend along the circumference of the sealing flow channel through hole and form a ring; wherein the inner surface of the sealing protrusion corresponding to the sealing flow channel through hole is the side of the sealing protrusion close to the sealing flow channel through hole;

[0020] The inner surface of the sealing protrusion corresponding to the sealing flow channel through hole is an inclined surface;

[0021] The outer surface of the sealing protrusion corresponding to the sealing flow channel through hole is provided with a plurality of reinforcing ribs; along the radial direction of the valve core device, the reinforcing ribs are trapezoidal, triangular or rectangular.

[0022] Optionally, the multi-way valve further comprises a rotating shaft; the rotating shaft is fixedly connected to the valve core device;

[0023] One end of the rotating shaft passes through the sealing member and abuts against the first end of the valve body device, and the other end of the rotating shaft extends out of the second end of the valve body device; a sealing ring is provided between the rotating shaft and the second end of the valve body device.

[0024] Optionally, the multi-way valve further includes an actuator;

[0025] The actuator is connected to the valve core device through the rotating shaft to drive the valve core device to rotate.

[0026] Optionally, the valve body device includes a valve seat and an end cover; the valve seat and the end cover are fixedly connected and form an inner cavity for accommodating the valve core device; the first end of the valve body device is arranged on the valve seat, and the second end of the valve body device is arranged on the end cover;

[0027] The external flow channel opening is arranged on the valve seat;

[0028] The valve seat and the end cover are connected by screws or clamps, or the valve seat and the end cover are welded.

[0029] Optionally, the multi-way valve is a five-way valve.

[0030] The beneficial effects of the present invention are mainly:

[0031] The multi-way valve provided by the present invention includes a valve body device, a valve core device and a seal. When the valve core device is rotated to each rotation working position, at least two external flow channel openings can be connected to one of the valve core flow channels to realize a multi-way control function, so that multiple existing control valves can be integrated, which reduces the number of control valves to a certain extent, simplifies the pipeline and reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1-1 A schematic diagram of the three-dimensional structure of a multi-way valve provided in an embodiment of the present invention;

[0034] Figure 1-2 Another schematic diagram of the three-dimensional structure of the multi-way valve provided in an embodiment of the present invention;

[0035] Figure 1-3 A front view of a multi-way valve provided in an embodiment of the present invention;

[0036] Figure 1-4 for Figure 1-3 A bottom view of the multi-way valve shown;

[0037] Figure 1-5 for Figure 1-3 AA sectional view of the multi-way valve shown;

[0038] Figure 1-6 An exploded view of a multi-way valve provided in an embodiment of the present invention;

[0039] Figure 2-1 A schematic diagram of the three-dimensional structure of the valve core device and the rotating shaft provided in an embodiment of the present invention;

[0040] Figure 2-2 Another schematic diagram of the three-dimensional structure of the valve core device and the rotating shaft provided in an embodiment of the present invention;

[0041] Figure 2-3 A front view of the valve core device and the rotating shaft provided in an embodiment of the present invention;

[0042] Figure 2-4 for Figure 2-3 A BB-sectional view of the valve core device and the rotating shaft shown;

[0043] Figure 2-5 and Figure 2-6 An exploded view of the valve core device and the rotating shaft provided in an embodiment of the present invention;

[0044] Figures 2-7 to 2-10 A schematic structural diagram of a valve core body and a rotating shaft provided in an embodiment of the present invention;

[0045] Figures 2-11 to 2-14 A schematic structural diagram of a valve core cover provided in an embodiment of the present invention;

[0046] Figure 3-1 to Figure 3-5 A schematic structural diagram of a valve body device provided in an embodiment of the present invention;

[0047] Figures 3-6 to 3-9 A schematic structural diagram of a valve seat provided in an embodiment of the present invention;

[0048] Figures 3-10 to 3-13 A schematic structural diagram of an end cap provided in an embodiment of the present invention;

[0049] Figure 4-1 to Figure 4-6 A schematic structural diagram of a sealing member provided in an embodiment of the present invention;

[0050] Figure 5-1 to Figure 5-6 Schematic diagram of the working mode of the multi-way valve provided in an embodiment of the present invention.

[0051] Icons: 100-valve body assembly; 110-external flow channel opening; 111-first external sub-flow channel opening; 112-second external sub-flow channel opening; 113-third external sub-flow channel opening; 114-fourth external sub-flow channel opening; 115-fifth external sub-flow channel opening; 120-valve seat; 121-valve body rib; 122-valve body rotation stop groove; 130-end cover; 131-valve body rotation limit stop block; 200-valve core assembly; 210-valve core Flow channel; 211-first valve core sub-flow channel; 212-second valve core sub-flow channel; 213-third valve core sub-flow channel; 220-valve core body; 221-valve core rotation limit stop block; 230-valve core cover; 231-cover body flow channel through hole; 300-seal; 310-sealing flow channel through hole; 320-sealing protrusion; 330-sealing rib; 340-reinforcement rib; 400-rotating shaft; 500-sealing ring; 600-actuator. DETAILED DESCRIPTION

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0053] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0054] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0055] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0056] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0057] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0058] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0059] Example

[0060] Please refer to Figures 1-1 to 5-6 , this embodiment provides a multi-way valve. Figures 1-1 to 1-6 This is a schematic diagram of the structure of the multi-way valve provided in this embodiment, wherein: Figure 1-1 and Figure 1-2 It is a schematic diagram of the three-dimensional structure of the multi-way valve from two perspectives. Figure 1-3 This is a front view of the multi-way valve provided in this embodiment, Figure 1-4 for Figure 1-3 The bottom view of the multi-way valve shown, Figure 1-5 for Figure 1-3 The AA sectional view of the multi-way valve shown in FIG. Figure 1-6 This is an exploded view of the multi-way valve provided in this embodiment.

[0061] Figure 2-1 to Figure 2-6 This is a schematic diagram of the structure of the valve core device and the rotating shaft provided in this embodiment; wherein, Figure 2-1 and Figure 2-2 It is a schematic diagram of the three-dimensional structure of the valve core device and the rotating shaft from two perspectives. Figure 2-3 This is a front view of the valve core device and the rotating shaft provided in this embodiment, Figure 2-4 for Figure 2-3 The BB sectional view of the valve core device and the rotating shaft is shown. Figure 2-5 and Figure 2-6 Exploded diagrams of the valve core device and the rotating shaft from two perspectives; Figures 2-7 to 2-10 This is a schematic diagram of the structure of the valve core body and the rotating shaft provided in this embodiment, wherein: Figure 2-7 A three-dimensional diagram of the valve core body and the rotating shaft provided in this embodiment, Figure 2-8 This is the main view of the valve core body and the rotating shaft. Figure 2-9 for Figure 2-8 The top view of the valve core body and the rotating shaft is shown. Figure 2-10 for Figure 2-8 A bottom view of the valve core body and the rotating shaft is shown; Figures 2-11 to 2-14 This is a schematic diagram of the structure of the valve core cover provided in this embodiment, wherein: Figure 2-11 A three-dimensional diagram of the valve core cover provided in this embodiment, Figure 2-12 This is the main view of the valve core cover. Figure 2-13 for Figure 2-12 The top view of the valve core cover shown in FIG. Figure 2-14 for Figure 2-12 A bottom view of the valve core cover is shown.

[0062] Figure 3-1 to Figure 3-5 This is a schematic diagram of the structure of the valve body device provided in this embodiment, wherein: Figure 3-1 and Figure 3-2 It is a schematic diagram of the three-dimensional structure of the valve body device from two perspectives. Figure 3-3 This is a front view of the valve body device provided in this embodiment, Figure 3-4 for Figure 3-3 A top view of the valve body assembly is shown, Figure 3-5 for Figure 3-3 A bottom view of the valve body assembly is shown; Figures 3-6 to 3-9 This is a schematic diagram of the structure of the valve seat provided in this embodiment, wherein: Figure 3-6 It is a schematic diagram of the three-dimensional structure of the valve seat. Figure 3-7 The front view of the valve seat provided in this embodiment, Figure 3-8 for Figure 3-7 The CC section view of the valve seat is shown. Figure 3-9 for Figure 3-7 Rear view of the valve seat shown; Figures 3-10 to 3-13 This is a schematic diagram of the structure of the end cover provided in this embodiment, wherein: Figure 3-10 is a schematic diagram of the three-dimensional structure of the end cover. Figure 3-11 The front view of the end cap provided in this embodiment, Figure 3-12 for Figure 3-11 A top view of the end cap is shown, Figure 3-13 for Figure 3-11 Bottom view of the end cap shown.

[0063] Figure 4-1 to Figure 4-6 This is a schematic diagram of the structure of the seal provided in this embodiment, wherein: Figure 4-1 and Figure 4-2 It is a schematic diagram of the three-dimensional structure of the seal from two perspectives. Figure 4-3 for Figure 4-2 The enlarged view of area D of the seal is shown. Figure 4-4 This is a front view of the seal provided in this embodiment, Figure 4-5for Figure 4-4 Rear view of the seal shown, Figure 4-6 for Figure 4-5 EE sectional view of the seal shown.

[0064] Figure 5-1 to Figure 5-6 Schematic diagram of the six working modes of the multi-way valve provided in this embodiment.

[0065] It should be noted that Figures 1-1 to 5-6 The numbers 1-5 shown in the figure are identification layers, which respectively identify different external flow channel openings to facilitate connecting pipelines to different external flow channel openings.

[0066] See also Figures 1-1 to 2-14 As shown, the multi-way valve provided in this embodiment can be used in the cooling and heat exchange system of new energy vehicles; the multi-way valve includes a valve body device 100 and a valve core device 200; the valve core device 200 is rotatably arranged in the inner cavity of the valve body device 100, and the valve core device 200 can rotate around its own axial direction relative to the valve body device 100.

[0067] Along the axial direction of the valve core assembly 200, the valve core assembly 200 includes corresponding first and second ends, and the valve body assembly 100 includes corresponding first and second ends; the first end of the valve core assembly 200 mates with the first end of the valve body assembly 100, and the second end of the valve core assembly 200 mates with the second end of the valve body assembly 100. Optionally, the valve core assembly 200 and the valve body assembly 100 are coaxially arranged.

[0068] The first end of the valve core assembly 200 is provided with a plurality of mutually disconnected valve core flow channels 210. The first end of the valve body assembly 100 is provided with a plurality of external flow channel openings 110 capable of communicating with the valve core flow channels 210. In other words, when the valve core assembly 200 rotates, the external flow channel openings 110 can be connected or disconnected from the valve core flow channels 210. The external flow channel openings 110 are used to connect external pipelines, such as the water pump, motor cooling lines, battery heating and cooling lines, passenger compartment heating lines, and other pipelines.

[0069] The multi-way valve also includes a sealing member 300, which is fixedly disposed within the inner cavity of the valve body assembly 100. The first end of the valve core assembly 200 engages with the first end of the valve body assembly 100 via the sealing member 300. Optionally, the sealing member 300 is provided with sealed flow channel through-holes 310 corresponding to the external flow channel openings 110; that is, the number of sealed flow channel through-holes 310 and the number of external flow channel openings 110 are the same, and they correspond one-to-one.

[0070] The multi-way valve has multiple rotational working positions; when the valve core device 200 rotates to each rotational working position, at least two external flow channel openings 110 can be connected to one of the valve core flow channels 210 at the same time; that is, when the valve core device 200 rotates to each rotational working position, at least two external flow channel openings 110 are connected, and the other external flow channel openings 110 are in a disconnected state due to being blocked by the sealing member 300, so that the multi-way valve can realize the function of connecting two pipelines or multiple pipelines in this rotational working position.

[0071] The multi-way valve described in this embodiment includes a valve body device 100, a valve core device 200 and a sealing member 300. When the valve core device 200 is rotated to each rotational working position, at least two external flow channel openings 110 can be connected to one of the valve core flow channels 210 to realize a multi-way control function, so as to be able to integrate multiple existing control valves, thereby reducing the number of control valves to a certain extent, simplifying the pipeline and reducing costs.

[0072] The multi-way valve described in this embodiment is provided with a plurality of valve core flow channels 210 that are not connected to each other at the first end of the valve core device 200, and a plurality of external flow channel openings 110 that can be connected to the valve core flow channels 210 are provided at the first end of the valve body device 100, so as to realize water inlet and outlet at the same end of the multi-way valve, further simplifying the structure of connecting the multi-way valve, making the multi-way valve smaller in size and easier to control.

[0073] See also Figures 2-1 to 2-10 As shown, in an optional solution of this embodiment, the valve core device 200 includes a valve core body 220; along the axial direction of the valve core device 200, a plurality of valve core flow channels 210 are provided at the first end of the valve core body 220; and the corresponding second end of the valve core body 220 cooperates with the second end of the valve body device 100. Specifically, along the axial direction of the valve core device 200, the valve core body 220 includes a corresponding first end and a second end. Optionally, the first end of the valve core device 200 is the first end of the valve core body 220, and the second end of the valve core device 200 is the second end of the valve core body 220. By providing a plurality of valve core flow channels 210 on the valve core body 220, the structure of the multi-way valve is simplified, and the multi-way valve is facilitated to achieve communication between different external flow channel ports 110.

[0074] See also Figures 2-1 to 2-14 As shown, in an optional solution of this embodiment, the valve core device 200 further includes a valve core cover 230; the valve core cover 230 is sealed and fixedly connected to the first end of the valve core body 220; optionally, the valve core cover 230 and the valve core body 220 are fixedly connected by gluing, screws, laser welding, etc. Optionally, the valve core body 220 and the valve core cover 230 are coaxially arranged.

[0075] The valve core cover 230 is provided with a plurality of cover flow channel holes 231; each valve core flow channel 210 is connected to at least two cover flow channel holes 231, one of which is used as a liquid outlet and the other as a liquid inlet.

[0076] The sealing member 300 is disposed between the first end of the valve body device 100 and the valve core cover 230. That is, the sealing member 300 is fixedly disposed at the first end of the valve body device 100 and does not rotate with the rotation of the valve core device 200.

[0077] When the valve core assembly 200 rotates to each rotational operating position, at least two external flow passage openings 110 can communicate with at least two interconnected cover flow passage holes 231. That is, at least two external flow passage openings 110 can communicate with the valve core flow passage 210 through the cover flow passage holes 231. This can be understood as at least two external flow passage openings 110, with at least one external flow passage opening 110 being an inlet and at least one external flow passage opening 110 being an outlet. By utilizing the valve core cover 230 and the cover flow passage holes 231, the contact area between the valve core flow passage 210 and the valve body assembly 100 is reduced, thereby improving the sealing performance between the valve body assembly 100 and the valve core assembly 200 to a certain extent and facilitating the steering and control of the multi-way valve.

[0078] See also Figure 4-1 to Figure 4-6 As shown, in an optional solution of this embodiment, a rotation-stopping structure is provided between the valve body assembly 100 and the sealing member 300 to prevent the sealing member 300 from rotating. The rotation-stopping structure fixes the sealing member 300 relative to the valve body assembly 100 and prevents it from rotating with the valve core assembly 200. The sealing member 300 improves the sealing performance between the valve body assembly 100 and the valve core cover 230, thereby improving the sealing performance between the valve body assembly 100 and the valve core assembly 200.

[0079] See also Figures 3-6 to 3-9 and Figure 4-1 to Figure 4-6As shown, in an optional scheme of this embodiment, the anti-rotation structure includes a valve body rib 121 arranged on the inner surface of the valve body device 100 and a sealing protrusion 320 arranged on one side of the seal 300, and the other side of the seal 300 is a plane; wherein, the seal 300 includes one side that cooperates with the valve body device 100 and the other side that cooperates with the valve core cover body 230, that is, the seal 300 has a side with the sealing protrusion 320 that cooperates with the valve body device 100 so that the seal 300 is firmly fixed on the valve body device 100, and the seal 300 has a flat side that cooperates with the valve core cover body 230 to improve the sealing performance between the seal 300 and the valve core cover body 230 to a certain extent, thereby improving the sealing performance between the valve body device 100 and the valve core cover body 230. In addition, the sealing protrusion 320 can well support the plane of the seal 300 that cooperates with the valve core cover body 230 to reduce deformation, depression, etc. of the plane, thereby reducing the increase in resistance and sealing problems of the valve core device 200 during rotation caused by deformation and depression of the plane.

[0080] Optionally, adjacent valve body ribs 121 form a valve body anti-rotation groove 122 that accommodates the sealing protrusion 320; the valve body anti-rotation groove 122 is used to further improve the firmness of the seal 300 fixed to the valve body device 100, preventing the seal 300 from rotating with the rotation of the valve core device 200.

[0081] Optionally, one or more sealing ribs 330 are provided on the inner surface of the sealing protrusion 320 corresponding to the sealing flow channel through hole 310. The multiple sealing ribs 330 are sequentially arranged along the axial direction of the valve core device 200. The sealing ribs 330 extend along the circumference of the sealing flow channel through hole 310 and form a ring shape. The inner surface of the sealing protrusion 320 corresponding to the sealing flow channel through hole 310 is the side of the sealing protrusion 320 close to the sealing flow channel through hole 310, while the outer surface of the sealing protrusion 320 corresponding to the sealing flow channel through hole 310 is the side of the sealing protrusion 320 away from the sealing flow channel through hole 310. The sealing ribs 330 can improve the sealing performance between the sealing member 300 and the valve body device 100 at the sealing flow channel through hole 310 and can also improve the strength of the sealing member 300 at the sealing flow channel through hole 310 to a certain extent.

[0082] Optionally, the inner surface of the sealing protrusion 320 corresponding to the sealing flow channel through hole 310 is an inclined surface, that is, the mating surface between the inner surface of the sealing protrusion 320 corresponding to the sealing flow channel through hole 310 and the valve body rib 121 is an inclined surface. By providing multiple sealing ribs 330 on the inclined surface, when the seal 300 is mated with the valve body device 100, the compression amounts of the multiple sealing ribs 330 are different. While ensuring the compression seal between the seal 300 and the valve body device 100, the seal 300 has a tendency to shift toward the valve core device 200 side, thereby achieving a better seal between the end face of the valve core device 200 and the end face of the seal 300. Optionally, the inclined surface is arranged at an acute angle to the plane of the seal 300, such as Figure 4-6 shown.

[0083] Optionally, the outer circumferential surface of the sealing member 300 is spaced apart from the inner circumferential surface of the valve body device 100 .

[0084] The multi-way valve described in this embodiment adopts a sealing principle similar to that of a lip seal ring, and deforms under the action of liquid pressure, so that the seal 300 is tightly attached to the first end of the valve core device 200 to achieve sealing of the external flow channel 110 in a non-connected state; the higher the liquid pressure, the tighter the plane end of the seal 300 is attached to the first end of the valve core device 200, and the plane end of the seal 300 has a certain ability to automatically compensate for wear. Specifically, when the multi-way valve is working, the valve core device 200 rotates to one of the rotational working positions, and at least two external flow channel ports 110 (including the external flow channel port 110 as the inlet and the external flow channel port 110 as the outlet) are connected to one of the valve core flow channels 210, and the flow medium flows from the external flow channel port 110 as the inlet into the interior of the valve body device 100, flows through the corresponding valve core flow channel 210, and flows out of the valve body device 100 from the external flow channel port 110 as the outlet; when the flow medium flows into the valve core flow channel At the same time as 210, the flowing medium will also fill the gap between the plane end of the sealing member 300 and the first end of the valve core device 200, and then fill the entire interior of the valve body device 100 through the gap between the outer peripheral surface of the sealing member 300 and the inner peripheral surface of the valve body device 100. The liquid pressure of the flowing medium drives the sealing member 300 to stick to the valve core device 200, so that the other external flow channel openings 110 are blocked by the sealing member 300 and are in a disconnected state, thereby improving the sealing performance of the other external flow channel openings 110 to a certain extent.

[0085] Optionally, a plurality of reinforcing ribs 340 are provided on the outer surface of the sealing protrusion 320 corresponding to the sealing flow channel through hole 310. Optionally, the reinforcing ribs 340 are trapezoidal, triangular, or rectangular in shape along the radial direction of the valve core assembly 200. The reinforcing ribs 340 support the sealing protrusion 320 at the sealing flow channel through hole 310, thereby improving the strength of the sealing member 300 at the sealing flow channel through hole 310 to a certain extent, preventing the sealing member 300 from expanding during installation and causing sealing failure, thereby improving the sealing performance between the sealing member 300 at the sealing flow channel through hole 310 and the valve body assembly 100.

[0086] See also Figure 2-1 to Figure 2-6 As shown, in an optional solution of this embodiment, the multi-way valve further includes a rotating shaft 400; the rotating shaft 400 is fixedly connected to the valve core device 200. The rotating shaft 400 facilitates driving the valve core device 200 to rotate.

[0087] Optionally, one end of the rotating shaft 400 passes through the seal 300 and abuts the first end of the valve body device 100, and the other end of the rotating shaft 400 extends out of the second end of the valve body device 100; the seal 300 is connected by the rotating shaft 400, and the first end and the second end of the valve body device 100 are connected, so as to improve the matching accuracy between the valve body device 100, the valve core device 200 and the seal 300 to a certain extent, reduce radial swing, especially reduce the radial swing of the seal 300, and improve the end face sealing performance of the multi-way valve.

[0088] Optionally, a sealing ring 500 is provided between the rotating shaft 400 and the second end of the valve body device 100. The sealing ring 500 further improves the sealing performance of the valve body device 100, thereby improving the sealing performance of the multi-way valve.

[0089] See also Figures 1-1 to 1-6 As shown, in an optional solution of this embodiment, the multi-way valve further includes an actuator 600;

[0090] The actuator 600 is connected to the valve core device 200 through the rotating shaft 400 to drive the valve core device 200 to rotate. The actuator 600 provides a power source to drive the valve core device 200 to rotate. Optionally, the actuator 600 is a motor.

[0091] See also Figure 3-1 to Figure 3-13 As shown, in an optional scheme of this embodiment, the valve body device 100 includes a valve seat 120 and an end cover 130; the valve seat 120 and the end cover 130 are fixedly connected and form an inner cavity for accommodating the valve core device 200; the first end of the valve body device 100 is arranged on the valve seat 120, and the second end of the valve body device 100 is arranged on the end cover 130.

[0092] The external flow channel opening 110 is provided on the valve seat 120. Optionally, the valve body rib 121 is provided on the valve seat 120. The valve seat 120 and the end cover 130 are used to facilitate the installation of the valve core device 200 inside the valve body device 100.

[0093] Optionally, the valve seat 120 and the end cover 130 are connected by screws or clamps, or the valve seat 120 and the end cover 130 are welded, or the valve seat 120 and the end cover 130 are connected by other means.

[0094] See also Figure 1-5 As shown, in an optional solution of this embodiment, a valve core rotation limiting structure is provided between the valve body assembly 100 and the valve core body 220 to limit the rotation angle of the valve core assembly 200. The valve core rotation limiting structure allows the valve core assembly 200 to rotate within a preset angle range. Optionally, the preset rotation angle of the valve core assembly 200 is, for example, 160°, 180°, or 195°, where the preset rotation angle of the valve core assembly 200 is the valve core angle.

[0095] For example, the valve core rotation limiting structure includes a valve body rotation limiting stop block 131 arranged on the valve body device 100 and a valve core rotation limiting stop block 221 arranged on the valve core body 220; along the circumference of the valve core device 200, one end of the valve core rotation limiting stop block 221 can abut against one end of the valve body rotation limiting stop block 131, and after the valve core device 200 rotates a certain angle, the other end of the valve core rotation limiting stop block 221 can abut against the other end of the valve body rotation limiting stop block 131.

[0096] Optionally, the valve body rotation limit stop block 131 is provided on the end cover 130 .

[0097] The multi-way valve described in this embodiment can be a four-way valve, a five-way valve, a seven-way valve, etc. The following description will be made using a five-way valve as an example. Figure 5-1 to Figure 5-6 As shown, in an optional solution of this embodiment, the multi-way valve is a five-way valve.

[0098] There are three valve core channels 210, namely the first valve core sub-channel 211, the second valve core sub-channel 212 and the third valve core sub-channel 213; the central axis of the valve core device 200 is set in the first valve core sub-channel 211, and the second valve core sub-channel 212 and the third valve core sub-channel 213 are respectively set on both sides of the first valve core sub-channel 211.

[0099] There are five external flow channel openings 110, namely, a first external sub-flow channel opening 111, a second external sub-flow channel opening 112, a third external sub-flow channel opening 113, a fourth external sub-flow channel opening 114, and a fifth external sub-flow channel opening 115. Optionally, the flow direction of the medium in the first external sub-flow channel opening 111, the third external sub-flow channel opening 113, and the fourth external sub-flow channel opening 114 is the same, for example, the first external sub-flow channel opening 111, the third external sub-flow channel opening 113, and the fourth external sub-flow channel opening 114 are outlets; optionally, the flow direction of the medium in the second external sub-flow channel opening 112 and the fifth external sub-flow channel opening 115 is the same, for example, the second external sub-flow channel opening 112 and the fifth external sub-flow channel opening 115 are inlets; and vice versa is also possible.

[0100] Optionally, along the circumference of the valve body device 100 , the first external sub-channel opening 111 , the fourth external sub-channel opening 114 , the fifth external sub-channel opening 115 , the second external sub-channel opening 112 and the third external sub-channel opening 113 are sequentially arranged at intervals.

[0101] Optionally, the multi-way valve has six rotational working positions, that is, six working modes, as shown in Table 1.

[0102] Table 1 Working modes of multi-way valve

[0103] Working Mode Open closure Spool angle / ° 1 2. 5 in → 3 out 1、4 72.5 2 2 in → 3 out, 5 in → 1 out 4 185 3 2 in → 1, 5 in → 4 3 162.5 4 2 in → 3, 5 in → 4 out 1 27.5 5 2. 5 in → 4 out 1、3 117.5 6 2. 5 in → 1 out 3、4 5

[0104] The valve core angles of the valve core devices in Table 1 are relative values. In the Open / Close column, 1 represents the first external sub-channel opening 111, 2 represents the second external sub-channel opening 112, and so on. In Table 1, the second and fifth external sub-channel openings 112 and 115 are inlets, while the first, third, and fourth external sub-channel openings 111, 113, and 114 are outlets.

[0105] See also Figure 5-1 As shown, when the valve core device 200 rotates to the first rotation working position, for example, the valve core angle is 72.5°, the second external sub-channel opening 112 and the fifth external sub-channel opening 115 are respectively connected to the third external sub-channel opening 113 through the second valve core sub-channel 212; the first external sub-channel opening 111 and the fourth external sub-channel opening 114 are closed.

[0106] See also Figure 5-2 As shown, when the valve core device 200 rotates to the second rotation working position, for example, the valve core angle is 185°, the second external sub-channel opening 112 is connected to the third external sub-channel opening 113 through the third valve core sub-channel 213; the fifth external sub-channel opening 115 is connected to the first external sub-channel opening 111 through the first valve core sub-channel 211; and the fourth external sub-channel opening 114 is closed.

[0107] See also Figure 5-3As shown, when the valve core device 200 rotates to the third rotation working position, for example, the valve core angle is 162.5°, the second external sub-channel opening 112 is connected to the first external sub-channel opening 111 through the first valve core sub-channel 211; the fifth external sub-channel opening 115 is connected to the fourth external sub-channel opening 114 through the second valve core sub-channel 212; and the third external sub-channel opening 113 is closed.

[0108] See also Figure 5-4 As shown, when the valve core device 200 rotates to the fourth rotation working position, for example, the valve core angle is 27.5°, the second external sub-channel opening 112 is connected to the third external sub-channel opening 113 through the second valve core sub-channel 212; the fifth external sub-channel opening 115 is connected to the fourth external sub-channel opening 114 through the first valve core sub-channel 211; and the first external sub-channel opening 111 is closed.

[0109] See also Figure 5-5 As shown, when the valve core device 200 rotates to the fifth rotational working position, for example, the valve core angle is 117.5°, the second external sub-channel opening 112 and the fifth external sub-channel opening 115 are respectively connected to the fourth external sub-channel opening 114 through the second valve core sub-channel 212; the first external sub-channel opening 111 and the third external sub-channel opening 113 are closed.

[0110] See also Figure 5-6 As shown, when the valve core device 200 rotates to the sixth rotational working position, for example, the valve core angle is 5°, the second external sub-channel opening 112 and the fifth external sub-channel opening 115 are respectively connected to the first external sub-channel opening 111 through the first valve core sub-channel 211; the third external sub-channel opening 113 and the fourth external sub-channel opening 114 are closed.

[0111] Optionally, the second valve core sub-channel 212 and the third valve core sub-channel 213 are fan-shaped and symmetrically arranged. Optionally, the five external channel openings 110 have the same shape.

[0112] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A multi-way valve, characterized in that: It comprises a valve body device, a valve core device and a sealing member; the valve core device is rotatably arranged in the inner cavity of the valve body device, and the sealing member is relatively fixedly arranged in the inner cavity of the valve body device; Along the axial direction of the valve core device, the valve core device includes a corresponding first end and a second end, and the valve body device includes a corresponding first end and a second end; the first end of the valve core device is matched with the first end of the valve body device through the sealing member, and the second end of the valve core device is matched with the second end of the valve body device; The first end of the valve core device is provided with a plurality of valve core flow channels that are not connected to each other; the first end of the valve body device is provided with a plurality of external flow channel openings that can be connected to the valve core flow channels; the sealing member is provided with sealing flow channel through holes corresponding to the external flow channel openings; The multi-way valve has multiple rotational working positions; when the valve core device rotates to each rotational working position, at least two of the external flow channel ports can be connected to one of the valve core flow channels; A rotation-stop structure is provided between the valve body device and the sealing member to prevent the sealing member from rotating; The anti-rotation structure includes a valve body rib provided on the inner surface of the valve body device and a sealing protrusion provided on one side of the sealing member, and the other side of the sealing member is a plane; Adjacent valve body ribs form a valve body anti-rotation groove for accommodating the sealing protrusion; The inner surface of the sealing protrusion corresponding to the sealing flow channel through hole is provided with one or more sealing ribs; the plurality of sealing ribs are arranged in sequence along the axial direction of the valve core device; the sealing ribs extend along the circumference of the sealing flow channel through hole and form a ring; wherein the inner surface of the sealing protrusion corresponding to the sealing flow channel through hole is the side of the sealing protrusion close to the sealing flow channel through hole; The outer circumferential surface of the seal and the inner circumferential surface of the valve body device are spaced apart so that the seal is deformed under the action of liquid pressure, so that the seal is tightly attached to the first end of the valve core device to achieve sealing of the external flow channel opening in a non-connected state; when the liquid pressure is higher, the plane end of the seal is more tightly attached to the first end of the valve core device, so that the plane end of the seal has a certain ability to automatically compensate when wear occurs.

2. The multi-way valve according to claim 1, characterized in that The valve core device includes a valve core body; along the axial direction of the valve core device, a first end of the valve core body is provided with a plurality of valve core flow channels; the corresponding second end of the valve core body is matched with the second end of the valve body device.

3. The multi-way valve according to claim 2, characterized in that The valve core device further comprises a valve core cover; the valve core cover is sealed and fixedly connected to the first end of the valve core body; The valve core cover is provided with a plurality of cover flow channel through holes; each valve core flow channel is connected to at least two of the cover flow channel through holes; The sealing member is arranged between the first end of the valve body device and the valve core cover; When the valve core device rotates to each rotational working position, at least two of the external flow channel openings can be communicated with at least two mutually communicated cover body flow channel through holes.

4. The multi-way valve according to claim 2, characterized in that A valve core rotation limiting structure for limiting the rotation angle of the valve core device is provided between the valve body device and the valve core body; The valve core rotation limiting structure includes a valve body rotation limiting stop block provided on the valve body device and a valve core rotation limiting stop block provided on the valve core body; Along the circumference of the valve core device, one end of the valve core rotation limit stop block can abut against one end of the valve body rotation limit stop block, and the other end of the valve core rotation limit stop block can abut against the other end of the valve body rotation limit stop block.

5. The multi-way valve according to claim 1, characterized in that The inner surface of the sealing protrusion corresponding to the sealing flow channel through hole is an inclined surface; The outer surface of the sealing protrusion corresponding to the sealing flow channel through hole is provided with a plurality of reinforcing ribs; along the radial direction of the valve core device, the reinforcing ribs are trapezoidal, triangular or rectangular.

6. The multi-way valve according to claim 1, characterized in that It also includes a rotating shaft; the rotating shaft is fixedly connected to the valve core device; One end of the rotating shaft passes through the sealing member and abuts against the first end of the valve body device, and the other end of the rotating shaft extends out of the second end of the valve body device; a sealing ring is provided between the rotating shaft and the second end of the valve body device.

7. The multi-way valve according to claim 1, characterized in that The valve body device includes a valve seat and an end cover; the valve seat and the end cover are fixedly connected and form an inner cavity for accommodating the valve core device; the first end of the valve body device is arranged on the valve seat, and the second end of the valve body device is arranged on the end cover; The external flow channel opening is arranged on the valve seat; The valve seat and the end cover are connected by screws or clamps, or the valve seat and the end cover are welded.

8. The multi-way valve according to claim 1, wherein: The multi-way valve is a five-way valve; There are three valve core flow channels, namely a first valve core sub-flow channel, a second valve core sub-flow channel and a third valve core sub-flow channel; the central axis of the valve core device is arranged in the first valve core sub-flow channel, and the second valve core sub-flow channel and the third valve core sub-flow channel are respectively arranged on both sides of the first valve core sub-flow channel; There are five external flow channel openings, namely a first external sub-flow channel opening, a second external sub-flow channel opening, a third external sub-flow channel opening, a fourth external sub-flow channel opening, and a fifth external sub-flow channel opening; along the circumference of the valve body device, the first external sub-flow channel opening, the fourth external sub-flow channel opening, the fifth external sub-flow channel opening, the second external sub-flow channel opening, and the third external sub-flow channel opening are sequentially spaced apart; The multi-way valve has six rotation working positions; When the valve core device rotates to the first rotation working position, the second external sub-flow channel opening and the fifth external sub-flow channel opening are respectively connected to the third external sub-flow channel opening through the second valve core sub-flow channel; When the valve core device rotates to the second rotation working position, the second external sub-flow channel opening is communicated with the third external sub-flow channel opening through the third valve core sub-flow channel; the fifth external sub-flow channel opening is communicated with the first external sub-flow channel opening through the first valve core sub-flow channel; When the valve core device rotates to the third rotation working position, the second external sub-flow channel opening is communicated with the first external sub-flow channel opening through the first valve core sub-flow channel; the fifth external sub-flow channel opening is communicated with the fourth external sub-flow channel opening through the second valve core sub-flow channel; When the valve core device rotates to the fourth rotation working position, the second external sub-flow channel opening is communicated with the third external sub-flow channel opening through the second valve core sub-flow channel; the fifth external sub-flow channel opening is communicated with the fourth external sub-flow channel opening through the first valve core sub-flow channel; When the valve core device rotates to the fifth rotation working position, the second external sub-flow channel opening and the fifth external sub-flow channel opening are respectively connected to the fourth external sub-flow channel opening through the second valve core sub-flow channel; When the valve core device rotates to the sixth rotation working position, the second external sub-flow channel opening and the fifth external sub-flow channel opening are respectively communicated with the first external sub-flow channel opening through the first valve core sub-flow channel.

9. The multi-way valve according to claim 8, characterized in that The flow direction of the medium in the first external sub-channel opening, the third external sub-channel opening, and the fourth external sub-channel opening is the same, and the flow direction of the medium in the second external sub-channel opening and the fifth external sub-channel opening is the same; The second valve core sub-channel and the third valve core sub-channel are fan-shaped and symmetrically arranged; The five external flow channel openings have the same shape.

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