Four-way valve

Abstract

The utility model discloses a four-way valve, which comprises a valve body with a valve body cavity, a valve core component which is arranged in the valve body cavity and can rotate relative to the valve body, and a valve cover which is connected with one end of the valve body and is positioned above the valve core component, the valve cover comprises a central pipe orifice, a first pipe orifice, a second pipe orifice and a third pipe orifice, the first pipe orifice is adjacent to the central pipe orifice and is positioned on the outer side, the second pipe orifice is adjacent to the central pipe orifice and is positioned on the outer side, and the third pipe orifice is adjacent to the central pipe orifice and is positioned on the outer side. The four-way valve has at least three working modes. According to the utility model, at least three working modes can be realized, the flow direction of fluid is changed, the application scene is expanded, parts are reduced, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a four-way valve. Background Art

[0002] Four-way valves are commonly used in automobile systems. Their main function is to change the flow direction of different fluids such as refrigerants or fuels. They are mainly composed of a valve body, a valve core, a pilot valve, and a signal tube. However, they can only realize two working modes to change the flow direction of different fluids. Similar technologies can refer to the applicant's Chinese utility model patent CN217603470U, which has a relatively single working mode and limited application scenarios. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a four-way valve that can realize at least three working modes, change the flow direction of the fluid, and expand the application scenarios.

[0004] To achieve the purpose of the utility model, the utility model provides the following technical solutions: a four-way valve, comprising a valve body with a valve body cavity, a valve core assembly arranged in the valve body cavity and rotatable relative to the valve body, and a valve cover connected to one end of the valve body and located above the valve core assembly, wherein the valve core assembly comprises a first and a second flow channel, and the valve cover comprises a central pipe opening, a first pipe opening arranged adjacent to the central pipe opening and located on the outside, a second pipe opening arranged adjacent to the central pipe opening and located on the outside, and a third pipe opening arranged adjacent to the central pipe opening and located on the outside, wherein the four-way valve has at least three working modes, and the first flow channel is always connected to the central pipe opening in the three working modes, and the first pipe opening is connected to the first flow channel in the first working mode, and is connected to the second flow channel in the second and third working modes; the second pipe opening is connected to the first flow channel in the second working mode, and is connected to the second flow channel in the first and third working modes; the third pipe opening is connected to the first flow channel in the third working mode, and is connected to the second flow channel in the first and second working modes.

[0005] On the basis of the above technical solution, the following subsidiary technical solutions are further included:

[0006] The first pipe opening, the second pipe opening and the third pipe opening are distributed 120 degrees in a circumferential direction relative to the center of the central pipe opening.

[0007] The valve core assembly includes a valve core wall located outside the first and second flow channels, and a partition plate used to isolate the first and second flow channels and surrounded by the valve core wall, wherein the partition plate includes an arc-shaped central side wall, a first side wall connected to one side of the central side wall at one end and connected to the inner side of the valve core wall at the other end, and a second side wall connected to the other side of the central side wall at one end and connected to the inner side of the valve core wall at the other end.

[0008] The central side wall includes a curved inner wall and a curved inner cavity at least partially surrounded by the curved inner wall, wherein the curved inner cavity is a part of the first flow channel.

[0009] It also includes a sealing member arranged between the valve core assembly and the valve cover, wherein the sealing member includes a central hole connected to the central pipe opening, and a plurality of peripheral holes located outside the central hole and correspondingly connected to the first pipe opening, the second pipe opening, and the third pipe opening.

[0010] The valve core assembly further comprises a valve core shaft located at the bottom, and the valve body comprises an axial hole allowing the valve core shaft to pass through.

[0011] The arc-shaped inner wall passes through the central hole and extends toward the central pipe opening.

[0012] The valve cover comprises a valve cover central portion, a valve cover outer ring portion surrounding the valve cover central portion, and a plurality of valve cover connecting portions connecting the valve cover central portion and the valve cover outer ring portion.

[0013] The sealing member comprises a sealing inner ring, a sealing outer ring surrounding the sealing inner ring, and a sealing connection portion connecting the sealing inner ring and the sealing outer ring.

[0014] Compared with the prior art, the utility model has the following beneficial effects: it can realize at least three working modes, change the flow direction of the fluid, expand the application scenarios, reduce parts and components, and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 It is a three-dimensional exploded view of the utility model at one viewing angle;

[0019] Figure 4 It is a three-dimensional exploded view of the utility model from another viewing angle;

[0020] Figure 5 is a schematic diagram of the utility model in the first working mode;

[0021] Figure 6 is a schematic diagram of the utility model in the second working mode;

[0022] Figure 7 It is a schematic diagram of the utility model in the third working mode. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-7 As shown, the utility model provides a first embodiment of a four-way valve, which includes a valve body 1000 having a valve body cavity 1200, a valve core assembly 2000 arranged in the valve body cavity 1200 and rotatable relative to the valve body 1000, a valve cover 3000 connected to one end of the valve body 1000 and located above the valve core assembly, and a sealing member 4000 arranged between the valve core assembly 2000 and the valve cover 3000.

[0025] The valve body 1000 is generally in the shape of a hollow cylinder, and includes a valve body cavity 1200 and an axial hole 1220 located in the valve body cavity 1200. The valve core assembly 2000 is received in the valve body cavity 1200.

[0026] The valve core assembly 2000 includes the first and second flow channels 2200 and 2400, a valve core wall 2020 located outside the first and second flow channels 2200 and 2400, a valve core shaft 2100 located at the bottom and at least partially received by the shaft hole 1220, and a partition 2300 for isolating the first and second flow channels 2200 and 2400 and surrounded by the valve core wall 2020. The partition 2300 includes an arc-shaped central side wall 2320, a first side wall 2340 connected to one side of the central side wall 2320 at one end and connected to the inner side of the valve core wall 2020 at the other end, and a second side wall 2360 connected to the other side of the central side wall 2320 at one end and connected to the inner side of the valve core wall 2020 at the other end. The central sidewall 2320 includes a curved inner wall 2380 and a curved inner cavity 2382 at least partially surrounded by the curved inner wall 2380, wherein the curved inner cavity 2382 is a part of the first flow channel 2200. The circumferential angle of the curved inner wall 2380 is greater than 120 degrees. The first sidewall 2340 and the second sidewall 2360 are used to define the first flow channel 2200 or the second flow channel 2400, wherein the circumferential angle between the first sidewall 2340 and the second sidewall 2360 is greater than 90 degrees.

[0027] The valve cover 3000 includes a valve cover central portion 3200, a central pipe opening 3220 disposed at the center of the valve cover central portion 3200, a valve cover outer ring portion 3400 surrounding the valve cover central portion 3200, a plurality of valve cover connecting portions 3600 connecting the valve cover central portion 3200 and the valve cover outer ring portion 3400, and a plurality of pipe openings 3620 disposed between the valve cover central portion 3200 and the valve cover outer ring portion 3400 and spaced by the valve cover connecting portions 3600. The pipe openings include a first pipe opening 3622, a second pipe opening 3624, and a third pipe opening 3626. The first pipe opening 3622 is disposed adjacent to the central pipe opening 3220, the second pipe opening 3624 is also disposed adjacent to the central pipe opening 3220 and adjacent to the first pipe opening 3622, and the third pipe opening 3626 is disposed adjacent to the central pipe opening 3220 and located between the first pipe opening 3622 and the second pipe opening 3624. The first pipe opening 3622 , the second pipe opening 3624 , and the third pipe opening 3626 are distributed in a circumferential direction at 120 degrees relative to the center of the central pipe opening 3220 .

[0028] The seal 4000 is a sealing ring, including a sealing inner ring 4200, a central hole 4220 connected to the central pipe opening 3220 and located at the center of the sealing inner ring 4200, a sealing outer ring 4400 surrounding the sealing inner ring 4200, a sealing connection portion 4600 connecting the sealing inner ring 4200 and the sealing outer ring 4400, and a plurality of peripheral holes 4620 located outside the central hole 4220 and correspondingly connected to the first pipe opening 3622, the second pipe opening 3624, and the third pipe opening 3626. The seal 4000 is used to isolate the first and second flow channels 2200 and 2400, and to achieve sealing between the valve body 1000 and the valve cover 3000. The arc inner wall 2380 passes through the central hole 4220 to achieve sealing, and extends to the central pipe opening 3220, but does not pass through the central pipe opening 3220.

[0029] When working, this embodiment has at least three working modes, and they are realized by rotating the valve core assembly 2000 to different positions: the first flow channel 2200 is always connected with the central pipe mouth 3220 in the three working modes, and the first pipe mouth 3622 is connected with the first flow channel 2200 in the first working mode, and is connected with the second flow channel 2400 in the second and third working modes; the second pipe mouth 3624 is connected with the first flow channel 2200 in the second working mode, and is connected with the second flow channel 2400 in the first and third working modes; the third pipe mouth 3626 is connected with the first flow channel 2200 in the third working mode, and is connected with the second flow channel 2400 in the first and second working modes. Thus, in the first working mode, the first fluid can enter from the central pipe port 3220 and then flow out from the first pipe port 3622, and similarly, it can also enter from the first pipe port 3622 and then flow out from the central pipe port 3220, and the second fluid can enter from the second pipe port 3624 and flow out from the third pipe port 3626, and similarly, it can also enter from the third pipe port 3626 and then flow out from the second pipe port 3624; in the second working mode, the first fluid can enter from the central pipe port 3220 and then flow out from the second pipe port 3624, and similarly, it can also enter from the second pipe port 3624 and then flow out from the central pipe port 32 20 flows out, while the second fluid can enter from the first pipe port 3622 and then flow out from the third pipe port 3626, and similarly, it can also enter from the third pipe port 3626 and then flow out from the first pipe port 3622; in the third working mode, the first fluid can enter from the central pipe port 3220 and then flow out from the third pipe port 3626, and similarly, it can also enter from the third pipe port 3626 and then flow out from the central pipe port 3220, while the second fluid can enter from the first pipe port 3622 and flow out from the second pipe port 3624, and similarly, it can also enter from the second pipe port 3624 and then flow out from the first pipe port 3622.

[0030] The utility model has the following beneficial effects: it can realize at least three working modes, change the flow direction of the fluid, expand the application scenarios, reduce parts and components, and reduce costs.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A four-way valve, comprising: A valve body (1000) having a valve body cavity (1200), a valve core assembly (2000) disposed in the valve body cavity (1200) and rotatable relative to the valve body (1000), and a valve cover (3000) connected to one end of the valve body (1000) and located above the valve core assembly (2000), wherein the valve core assembly (2000) comprises a first flow channel and a second flow channel, and the valve cover (3000) comprises a central pipe opening (3220), a first pipe opening (3622) disposed adjacent to the central pipe opening (3220) and located on the outside, a second pipe opening (3624) disposed adjacent to the central pipe opening (3220) and located on the outside, and a third pipe opening (3625) disposed adjacent to the central pipe opening (3220) and located on the outside. 6), wherein the four-way valve has at least three working modes, and the first flow channel (2200) is always connected to the central pipe port (3220) in the three working modes, and the first pipe port (3622) is connected to the first flow channel (2200) in the first working mode, and is connected to the second flow channel (2400) in the second and third working modes; the second pipe port (3624) is connected to the first flow channel (2200) in the second working mode, and is connected to the second flow channel (2400) in the first and third working modes; the third pipe port (3626) is connected to the first flow channel (2200) in the third working mode, and is connected to the second flow channel (2400) in the first and second working modes.

2. A four-way valve according to claim 1, characterized in that: The first pipe opening (3622), the second pipe opening (3624), and the third pipe opening (3626) are distributed in a circumferential direction at 120 degrees relative to the center of the central pipe opening (3220).

3. A four-way valve according to claim 1 or 2, characterized in that: The valve core assembly (2000) comprises a valve core wall (2020) located outside the first and second flow channels, and a partition (2300) for isolating the first and second flow channels and surrounded by the valve core wall (2020), wherein the partition (2300) comprises an arc-shaped central side wall (2320), a first side wall (2340) having one end connected to one side of the central side wall (2320) and the other end connected to the inner side of the valve core wall (2020), and a second side wall (2360) having one end connected to the other side of the central side wall (2320) and the other end connected to the inner side of the valve core wall (2020).

4. A four-way valve according to claim 3, characterized in that: The central side wall (2320) includes a curved inner wall (2380) and a curved inner cavity (2382) at least partially surrounded by the curved inner wall (2380), wherein the curved inner cavity (2382) is a part of the first flow channel (2200).

5. A four-way valve according to claim 4, characterized in that The invention also includes a sealing member (4000) disposed between the valve core assembly (2000) and the valve cover (3000), wherein the sealing member (4000) includes a central hole (4220) connected to the central pipe opening (3220), and a plurality of peripheral holes (4620) located outside the central hole (4220) and correspondingly connected to the first pipe opening (3622), the second pipe opening (3624), and the third pipe opening (3626).

6. A four-way valve according to claim 1 or 2, characterized in that: The valve core assembly (2000) further comprises a valve core shaft (2100) located at the bottom, and the valve body (1000) comprises an axial hole (1220) allowing the valve core shaft (2100) to pass through.

7. A four-way valve according to claim 5, characterized in that: The arc-shaped inner wall (2380) passes through the central hole (4220) and extends toward the central pipe opening (3220).

8. A four-way valve according to claim 7, characterized in that: The valve cover (3000) comprises a valve cover central portion (3200), a valve cover outer ring portion (3400) surrounding the valve cover central portion (3200), and a plurality of valve cover connecting portions (3600) connecting the valve cover central portion (3200) and the valve cover outer ring portion (3400).

9. A four-way valve according to claim 5, characterized in that: The sealing member (4000) comprises a sealing inner ring (4200), a sealing outer ring (4400) surrounding the sealing inner ring (4200), and a sealing connection portion (4600) connecting the sealing inner ring (4200) and the sealing outer ring (4400).

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