Multi-way fluid valve

Abstract

The utility model relates to a multi-way fluid valve which comprises a valve shell, the valve shell is provided with a first shell end and a second shell end opposite to the first shell end, and a cylindrical valve cavity extending between the first shell end and the second shell end is defined by the valve shell; a plurality of ports are formed in the valve end cover, and the valve end cover is located at the first shell end of the valve shell; the valve element defines two fluid channels which are independent of each other, and the valve element is rotatably arranged in the valve cavity; wherein the two fluid channels and the plurality of ports are configured to enable the multi-way fluid valve to be switched among a plurality of different working modes by rotating the valve element, and in each working mode, at least one pair of ports in the plurality of ports are communicated through the corresponding fluid channel in a fluid mode, and the other ports are cut off.

Description

Technical Field

[0001] The utility model relates to the field of multi-way fluid valves, in particular to a multi-way fluid valve with multiple working modes. Background Art

[0002] With the development of new energy vehicle technology, coolant control fluid valves, especially multi-way coolant flow control water valves, used in thermal management integrated modules of new energy vehicles have become key components of new energy vehicles.

[0003] At present, the design of the valve core that can achieve multi-functional modes is complex and the production molds of the valve core cannot be shared, which is costly and cannot meet the requirements of the new energy vehicle thermal management integrated module for multiple modes of fluid valves; moreover, the functional modes of the existing columnar multi-way coolant flow control water valves are mostly irregular and cannot achieve different working modes by rotation. Utility Model Content

[0004] In order to overcome the above problems, it is necessary to provide a new type of multi-way fluid valve, such as a coolant flow control water valve, which has a simple valve core design, can be processed using a common mold, and can achieve multiple different working modes by rotating the valve core.

[0005] The utility model provides a multi-way fluid valve, which includes: a valve housing, the valve housing having a first housing end and an opposite second housing end and defining a cylindrical valve chamber extending between the first housing end and the second housing end; a valve end cover, the valve end cover is provided with a plurality of ports and is located at the first housing end of the valve housing; and a valve core, the valve core defines two fluid channels independent of each other and is rotatably arranged in the valve chamber; wherein the two fluid channels and the plurality of ports are configured so that by rotating the valve core, the multi-way fluid valve can be switched between a plurality of different working modes, wherein in each of the working modes, at least one pair of the plurality of ports is fluidly connected through a corresponding fluid channel, and the remaining ports are cut off. Here, the valve end cover is preferably formed integrally with the valve housing. It should be understood that the valve end cover can also be fixedly connected to the valve housing.

[0006] According to one scheme of the utility model, the valve core has a first valve core end, a second valve core end, a cylindrical peripheral wall extending between the first valve core end and the second valve core end, and a cylindrical central shaft, wherein the central shaft extends beyond the first valve core end; the valve core defines a valve core chamber which is closed at the first valve core end and open at the second valve core end, and the valve core chamber defines the two fluid channels by two axial partitions extending between the peripheral wall and the central shaft; the multi-way fluid valve also includes a flat seal having a number of openings corresponding to the multiple ports and fixed to the side of the valve end cover facing the valve core.

[0007] In one embodiment of the present invention, the multi-way fluid valve is constructed as a four-way fluid valve, wherein the multiple ports are four ports, and the four ports include a first port, a second port, a third port and a fourth port arranged in the valve end cover at circumferential intervals.

[0008] According to a preferred embodiment of the present invention, the two fluid channels include a first fluid channel and a second fluid channel, the projection of the first fluid channel in a plane perpendicular to the central rotation axis is in the form of a first fan ring with the intersection of the center line of the central rotation axis and the plane as the center, and the projection of the second fluid channel in a plane perpendicular to the central rotation axis is in the form of a second fan ring with the intersection of the center line of the central rotation axis and the plane as the center, wherein the center angle of the first fan ring is greater than the center angle of the second fan ring.

[0009] In a preferred embodiment of the present invention, the first port, the second port, the third port and the fourth port are constructed as fan rings of the same size and are equidistantly spaced; the central angle of the first fan ring can be 180°, and the central angle of the second fan ring can be 60° to 80°. It should be understood that, according to specific needs, these ports can also be selected in other suitable shapes and sizes, and can also be spaced unequally. The degree of the central angle of the first fan ring and the second fan ring is only exemplary, and other suitable degrees can also be selected according to specific needs.

[0010] According to one solution of the utility model, the multiple different working modes of the four-way fluid valve include at least two of the following working modes:

[0011] a first working mode, in which the second port and the third port are in fluid communication through the first fluid channel, and the first port and the fourth port are blocked;

[0012] A second working mode, wherein the four-way fluid valve can be switched to the second working mode by rotating the valve core in the first working mode by 25° in a clockwise direction, in which the second port and the third port are fluidically connected through the first fluid channel, and the first port and the fourth port are fluidically connected through the second fluid channel;

[0013] A third working mode, wherein the four-way fluid valve can be switched to the third working mode by rotating the valve core in the first working mode by 70° in a clockwise direction, and in the third working mode, the third port is respectively connected to the second port and the fourth port through the first fluid channel, and the first port is cut off;

[0014] A fourth working mode, wherein the four-way fluid valve can be switched to the fourth working mode by rotating the valve core in the first working mode by 90° in a clockwise direction, in which the third port and the fourth port are fluidically connected through the first fluid channel, and the first port and the second port are blocked;

[0015] A fifth working mode, wherein the four-way fluid valve can be switched to the fifth working mode by rotating the valve core in the first working mode by 115° in a clockwise direction. In the fifth working mode, the first port and the second port are fluidically connected through the second fluid channel, and the third port and the fourth port are fluidically connected through the first fluid channel;

[0016] A sixth working mode, wherein the four-way fluid valve can be switched to the sixth working mode by rotating the valve core in the first working mode by 220° in a clockwise direction, in which the first port and the fourth port are fluidically connected through the first fluid channel, and the second port and the third port are blocked;

[0017] a seventh working mode, wherein the four-way fluid valve can be switched to the seventh working mode by rotating the valve core in the first working mode by 250° in a clockwise direction, in which the first port is respectively connected to the second port and the fourth port through the first fluid channel, and the third port is cut off; and

[0018] The eighth working mode is to switch the four-way fluid valve to the eighth working mode by rotating the valve core in the first working mode by 270° in a clockwise direction. In the eighth working mode, the first port and the second port are fluidly connected through the first fluid channel, and the third port and the fourth port are cut off.

[0019] According to one embodiment of the present invention, the multi-way fluid valve is a five-way fluid valve, and the multiple ports are five ports, wherein the five ports include a first port, a second port, a third port and a fourth port arranged circumferentially spaced apart in the valve end cover, and a fifth port located at the center of the valve end cover.

[0020] According to one scheme of the utility model, the two fluid channels include a first fluid channel and a second fluid channel; the central rotating shaft defines a rotating shaft chamber which is closed at the first valve core end and open at the second valve core end, and the rotating shaft chamber constitutes a part of the second fluid channel; wherein the projection of the first fluid channel in a plane perpendicular to the central rotating shaft is in the form of a first fan ring with the intersection of the center line of the central rotating shaft and the plane as the center, and the projection of the second fluid channel in a plane perpendicular to the central rotating shaft is a combination of a second fan ring with the intersection of the center line of the central rotating shaft and the plane as the center and a circle with the intersection as the center, wherein the center angle of the first fan ring is greater than the center angle of the second fan ring.

[0021] According to a preferred embodiment of the present invention, the first port, the second port, the third port and the fourth port are in the shape of a sector ring of the same size and are equidistantly spaced, and the fifth port is in the shape of a circle; the central angle of the first sector ring is 180°, and the central angle of the second sector ring is 60° to 80°. It should be understood that, according to specific needs, these ports may also be selected in other suitable shapes and sizes, and may also be spaced unequally. The degree of the central angle of the first sector ring and the second sector ring is only exemplary, and other suitable degrees may also be selected according to specific needs.

[0022] According to one solution of the utility model, the multiple different working modes of the five-way fluid valve include at least two of the following working modes:

[0023] a first working mode, in which the first port and the fourth port are in fluid communication through the first fluid channel, the second port and the fifth port are in fluid communication through the second fluid channel, and the third port is blocked;

[0024] A second working mode, wherein the five-way fluid valve can be switched to the second working mode by rotating the valve core in the first working mode by 25° in a clockwise direction, in which the fourth port is fluidically connected with the first port and the third port through the first fluid channel, respectively, and the second port is fluidically connected with the fifth port through the second fluid channel;

[0025] A third working mode, wherein the five-way fluid valve can be switched to the third working mode by rotating the valve core in the first working mode by 50° in a clockwise direction. In the second working mode, the third port and the fourth port are fluidically connected through the first fluid channel, the second port and the fifth port are fluidically connected through the second fluid channel, and the first port is cut off;

[0026] A fourth working mode, wherein the five-way fluid valve can be switched to the fourth working mode by rotating the valve core in the first working mode by 180° in a clockwise direction, in which the second port and the third port are fluidically connected through the first fluid channel, the fourth port and the fifth port are fluidically connected through the second fluid channel, and the first port is cut off;

[0027] a fifth working mode, wherein the five-way fluid valve can be switched to the fifth working mode by rotating the valve core in the first working mode by 205° in a clockwise direction, in which the second port is fluidically connected with the first port and the third port respectively through the first fluid channel, and the fourth port is fluidically connected with the fifth port through the second fluid channel; and

[0028] A sixth working mode, wherein the five-way fluid valve can be switched to the sixth working mode by rotating the valve core in the first working mode by 230° in a clockwise direction. In the sixth working mode, the first port and the second port are fluidically connected through the first fluid channel, the fourth port and the fifth port are fluidically connected through the second fluid channel, and the third port is cut off.

[0029] Due to the adoption of the above-mentioned technical scheme, the utility model can produce at least one of the following beneficial technical effects: in multi-way fluid valves, especially four-way fluid valves and five-way fluid valves, by reasonably planning the port layout in the valve end cover and the flow channel design in the valve core, corresponding rules exist between the various working modes / functional modes; the valve core structure is simple, for example, the valve core of the four-way fluid valve and the valve core of the five-way fluid valve can be processed using the same mold, which reduces the cost; by rotating the valve core to different specific angles, it is possible to switch to different working modes; only one seal is used, saving the seal cost and avoiding leakage problems caused by the seal; the design and assembly of the seal can be simplified, and the curled seal can be optimized into an end face seal that is easy to develop and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] With reference to the accompanying drawings, further features and advantages of the present invention will be more clearly understood by reading the following detailed description:

[0031] Figure 1 is a stereoscopic diagram of an embodiment of a multi-way fluid valve according to the utility model, namely, a four-way fluid valve;

[0032] Figure 2 for Figure 1 An exploded view of a four-way fluid valve is shown;

[0033] Figure 3A for Figure 1 A front view of a valve housing of a four-way fluid valve is shown, showing the layout of four ports in the valve end cover;

[0034] Figure 3B and Figure 3C for Figure 3A A three-dimensional view of a valve housing in FIG.

[0035] Figure 4A and Figure 4B for Figure 1 A three-dimensional view of a valve core of a four-way fluid valve shown;

[0036] Figure 4C for Figure 4A A front view of the valve core is shown, showing the layout of the various fluid channels in the valve core;

[0037] Figure 5A It is a schematic diagram of the on-off state of each port when the four-way fluid valve according to the utility model is in the first working mode;

[0038] Figure 5B It is a schematic diagram of the on-off state of each port when the four-way fluid valve according to the utility model is in the second working mode;

[0039] Figure 5C It is a schematic diagram of the on-off state of each port when the four-way fluid valve according to the utility model is in the third working mode;

[0040] Figure 5D It is a schematic diagram of the on-off state of each port when the four-way fluid valve according to the utility model is in the fourth working mode;

[0041] Figure 5E It is a schematic diagram of the on-off state of each port when the four-way fluid valve according to the utility model is in the fifth working mode;

[0042] Fig. 5F It is a schematic diagram of the on-off state of each port when the four-way fluid valve according to the utility model is in the sixth working mode;

[0043] Figure 5G It is a schematic diagram of the on-off state of each port when the four-way fluid valve according to the utility model is in the seventh working mode;

[0044] Figure 5H It is a schematic diagram of the on-off state of each port when the four-way fluid valve according to the utility model is in the eighth working mode;

[0045] Figure 6 is another embodiment of the multi-way fluid valve according to the utility model, that is, a three-dimensional view of a five-way fluid valve;

[0046] Figure 7 for Figure 6 An exploded view of a five-way fluid valve is shown;

[0047] Fig. 8A for Figure 6 A front view of a valve housing of a five-way fluid valve is shown, showing the arrangement of five ports in a valve end cap;

[0048] Figure 8B and Figure 8C for Fig. 8A A three-dimensional view of a valve housing in FIG.

[0049] Fig.9A for Figure 6 A three-dimensional view of a valve core of a five-way fluid valve shown;

[0050] Fig. 9B for Fig.9A A front view of the valve core is shown, showing the layout of the various fluid channels in the valve core;

[0051] Fig. 10A It is a schematic diagram of the on-off state of each port when the five-way fluid valve according to the utility model is in the first working mode;

[0052] Fig. 10B It is a schematic diagram of the on-off state of each port when the five-way fluid valve according to the utility model is in the second working mode;

[0053] Fig. 10C It is a schematic diagram of the on-off state of each port when the five-way fluid valve according to the utility model is in the third working mode;

[0054] Fig. 10D It is a schematic diagram of the on-off state of each port when the five-way fluid valve according to the utility model is in the fourth working mode;

[0055] Fig. 10E is a schematic diagram of the on-off state of each port when the five-way fluid valve according to the utility model is in the fifth working mode; and

[0056] Fig.10F It is a schematic diagram of the on-off state of each port when the five-way fluid valve according to the utility model is in the sixth working mode. DETAILED DESCRIPTION

[0057] The following will describe the multi-way fluid valve, especially the four-way fluid valve and the five-way fluid valve implemented according to the utility model with reference to the accompanying drawings and by way of example. In the following description, many specific details are set forth so that the technical personnel in the relevant technical field can more fully understand the utility model. However, it is obvious to the technical personnel in the relevant technical field that the implementation of the utility model may not have some of these specific details. In addition, it should be understood that the utility model is not limited to the specific embodiments introduced. On the contrary, it can be considered to implement the utility model with any combination of the following features and elements, regardless of whether they relate to different embodiments.

[0058] Figure 1 A perspective view of an embodiment of a multi-way fluid valve according to the present invention, namely a four-way fluid valve 100, for example, an embodiment of a coolant flow control water valve is shown. Figure 2 for Figure 1 The exploded view of the four-way fluid valve 100 is shown. As can be seen from the figure, the four-way fluid valve 100 includes a valve housing 10, a valve core 20, a valve end cover 30 and a sealing member 40.

[0059] See also Figure 3A , Figure 3B and Figure 3C The valve housing 10 is generally cylindrical and has a first housing end 11 and an opposite second housing end 12, defining a cylindrical valve chamber 101. The valve end cover 30 is located at the first housing end 11, while the second housing end 12 is completely open, and the valve core 20 is rotatably arranged in the valve chamber through the second housing end 12. In this embodiment, the valve end cover 30 can be formed integrally with the valve housing 10, which simplifies the manufacturing process and reduces the manufacturing cost. However, it should be understood that the valve end cover 30 and the valve housing 10 can also be manufactured separately, and then the valve end cover is fixedly mounted to the valve housing by a suitable connection method, such as by laser welding, which is also covered within the scope of the present application.

[0060] In this embodiment, see in particular Figure 3A , the valve end cover 30 is roughly square, and has four ports therein, namely the first port 1, the second port 2, the third port 3 and the fourth port 4. In a preferred example, the four ports are evenly spaced apart circumferentially along a circle, wherein the circle is centered on the center of the valve end cover 30. As can be seen from the figure, the first port 1, the second port 2, the third port 3 and the fourth port 4 are all fan-shaped with the center as the center, and the sizes are basically the same as each other. It should be understood that the sizes and shapes of the four ports shown in the figure are merely exemplary. Depending on the specific needs and the required working mode of the four-way fluid valve, the shape and size of each port may also be different, and other suitable shapes may be selected, which are also covered within the scope of the present application.

[0061] Advantageously, the seal 40 is constructed in the shape of a circular sheet and is provided with four openings corresponding to the four ports in the valve end cover 30, where "corresponding" means that the layout and shape of the four openings in the seal are exactly the same as the layout and shape of the four ports in the valve end cover. The seal 40 is fixedly mounted to the side of the valve end cover 30 facing the valve core 20, that is, the seal 40 is located between the valve core 20 and the valve end cover 30. It is advantageous for the seal 40 to be constructed in a planar structure, which is simple in structure, easy to manufacture and easy to assemble compared to a curled radial seal. For example, the seal 40 can be in the form of a PTFE / EPDM composite gasket, using a high-grade EPDM ethylene propylene rubber body, which is not only reusable, but also has very good chemical resistance.

[0062] Figure 4A , Figure 4B and Figure 4C A preferred embodiment of the valve core 20 of the four-way fluid valve 100 according to the utility model is shown. As can be seen from the figure, the valve core 20 has a first valve core end 21, a second valve core end 22, a cylindrical peripheral wall 23 extending between the first valve core end and the second valve core end, and a cylindrical central shaft 24, wherein the central shaft extends beyond the first valve core end 21. The valve core 20 defines a valve core chamber that is closed at the first valve core end 21 and open at the second valve core end 22, and the valve core chamber defines two fluid channels, namely the first fluid channel 1a and the second fluid channel 1b, through two axial partitions extending between the peripheral wall 23 and the central shaft 24. See in particular Figure 4B On one side of the central rotating shaft 24, the first fluid passage 1a extends from the closed first valve core end 21 to the open second valve core end, and is located between the peripheral wall 23, the first axial partition 25A, the second axial partition 25B and the central rotating shaft 24; on the other side opposite to the central rotating shaft 24, the second fluid passage 2a also extends from the closed first valve core end 21 to the open second valve core end, and is located between the peripheral wall 23, the first axial partition 25A, the second axial partition 25B and the central rotating shaft 24. In this embodiment, the first axial partition 25A and the second axial partition 25B also extend from the closed first valve core end 21 to the open second valve core end 22.

[0063] See especially Figure 4C, the projection of the first fluid channel 1a in the plane perpendicular to the central axis 24 is in the form of a first fan ring 26a with the intersection of the center line of the central axis and the plane as the center of the circle, and the projection of the second fluid channel 2a in the plane perpendicular to the central axis 24 is in the form of a second fan ring 26b with the intersection of the center line of the central axis and the plane as the center of the circle, wherein the center angle of the first fan ring is greater than the center angle of the second fan ring. In the embodiment shown in the figure, the center angle of the first fan ring 26a is, for example, 180°, and the center angle of the second fan ring is 60° to 80°, for example, 70°. However, according to actual needs and the functional mode to be realized, other suitable center angles can also be selected, which are also covered within the scope of the present application.

[0064] In addition, a mechanical stopper (mechanical stop point, not shown) is provided at the first valve core end 21 of the valve core 20, and the mechanical stopper is used to cooperate with the corresponding structure in the valve housing 10 to limit the rotation angle of the valve core 20 in the valve core chamber, for example, to limit the rotation of the valve core 20 between 0-270 degrees. The mechanical stopper is arranged in this way to ensure not only its strength, but also its dimensional accuracy to ensure the position control accuracy.

[0065] In the above-mentioned embodiment of the utility model, through the layout of two independent fluid channels in the valve core 20 and the coordination of the layout of four ports in the valve end cover 30, when the valve core 20 is rotated in the valve chamber, the four-way fluid valve 100 can be regularly switched between multiple different working modes (positions).

[0066] Figure 5A The first working mode of the four-way fluid valve 100 is shown, wherein the rotation angle of the valve core 20 is set to 0°. In this first working mode, the second port 2 and the third port 3 are fluidly connected through the first fluid channel 1a, and the first port and the fourth port 4 are blocked, that is, not in fluid communication with other ports.

[0067] Figure 5B The second working mode of the four-way fluid valve 100 is shown, wherein the rotation angle of the valve core 20 is 25°, that is, the valve core 20 in the first working mode is rotated 25° in the clockwise direction to switch the four-way fluid valve to the second working mode. In the second working mode, the second port 2 and the third port 3 are fluidically connected through the first fluid channel 1a, and the first port 1 and the fourth port 4 are fluidically connected through the second fluid channel 2a.

[0068] Figure 5CThe third working mode of the four-way fluid valve 100 is shown, wherein the rotation angle of the valve core 20 is 70°, that is, the valve core 20 in the first working mode is rotated 70° in the clockwise direction to switch the multi-way fluid valve to the third working mode. In the third working mode, in the third working mode, the third port 3 is fluidically connected with the second port 2 and the fourth port 4 through the first fluid channel 1a, respectively, and the first port 1 is cut off, that is, it is not fluidically connected with other ports.

[0069] Figure 5D The fourth working mode of the four-way fluid valve 100 is shown, wherein the rotation angle of the valve core 20 is 90°, that is, the valve core 20 in the first working mode is rotated 90° clockwise to switch the multi-way fluid valve to the fourth working mode. In the fourth working mode, the third port 3 and the fourth port 4 are fluidically connected through the first fluid channel 1a, and the first port 1 and the second port are cut off, that is, they are not fluidically connected with other ports.

[0070] Figure 5E The fifth working mode of the four-way fluid valve 100 is shown, wherein the rotation angle of the valve core 20 is 115°, that is, the valve core 20 in the first working mode is rotated 115° in the clockwise direction to switch the multi-way fluid valve to the fifth working mode. In the fifth working mode, the first port 1 and the second port 2 are fluidically connected through the second fluid channel 2a, and the third port 3 and the fourth port 4 are fluidically connected through the first fluid channel 1a.

[0071] Fig. 5F The sixth working mode of the four-way fluid valve 100 is shown, wherein the rotation angle of the valve core 20 is 220°, that is, the valve core 20 in the first working mode is rotated 220° in the clockwise direction to switch the four-way fluid valve to the sixth working mode. In the sixth working mode, the first port 1 and the fourth port 4 are fluidically connected through the first fluid channel 1a, and the second port and the third port 3 are both cut off, that is, they are not fluidically connected with other ports.

[0072] Figure 5G The seventh working mode of the four-way fluid valve 100 is shown, wherein the rotation angle of the valve core 20 is 250°, that is, the valve core 20 in the first working mode is rotated 250° in the clockwise direction to switch the multi-way fluid valve to the seventh working mode. In the seventh working mode, the first port 1 is fluidically connected with the second port 2 and the fourth port 4 through the first fluid channel 1a, respectively, and the third port 3 is cut off, that is, it is not fluidically connected with other ports.

[0073] Figure 5HThe fifth working mode of the four-way fluid valve 100 is shown, wherein the rotation angle of the valve core 20 is 270°, that is, the valve core 20 in the first working mode is rotated 270° in the clockwise direction to switch the four-way fluid valve to the eighth working mode. In the eighth working mode, the first port 1 and the second port 2 are fluidically connected through the first fluid channel 1a, and the third port 3 and the fourth port are cut off, that is, they are not fluidically connected with other ports.

[0074] It should be understood that the various working modes of the four-way fluid valve 100 given above may also include other working modes in which the valve core is rotated to other suitable angles different from the above rotation angles, and is not limited to the six working modes given above.

[0075] Figure 6 Another embodiment of the multi-way fluid valve according to the present invention, namely a five-way fluid valve 100 ′, is shown as a perspective view of an embodiment of a coolant flow control water valve. Figure 7 for Figure 6 The exploded view of the five-way fluid valve 100' is shown. As can be seen from the figure, the five-way fluid valve 100' also includes a valve housing 10, a valve core 20, a valve end cover 30 and a sealing member 40. In this document, for the sake of clarity, the same or similar components are marked with the same reference numerals.

[0076] See also Fig. 8A , Figure 8B and Figure 8C , wherein the valve housing 10 is shown with Figure 3A The structure of the valve housing 10 in the embodiment is basically the same, and the only difference is that the valve end cover 30 is provided with five ports. Here, the specific structure of the valve housing will not be described.

[0077] In this embodiment, see in particular Fig. 8A , the valve end cover 30 is also roughly square in shape, and five ports are provided therein, namely the first port 1, the second port 2, the third port 3, the fourth port 4 and the fifth port 5. In a preferred example, the first port 1, the second port 2, the third port 3, the fourth port 4 are evenly spaced circumferentially along a circle, wherein the circle is configured to take the center of the valve end cover 30 as the center. The fifth port 5 is located at the center of the valve end cover 30. As can be seen from the figure, the first port 1, the second port 2, the third port 3 and the fourth port 4 are all fan-shaped with the center as the center, and the sizes are substantially the same as each other, while the fifth port 5 is circular. It should be understood that the sizes and shapes of the five ports shown in the figure are merely exemplary, and the shape and size of each port can be selected according to specific needs, which is also covered within the scope of the present application. In this embodiment, the shape and structure of the seal 40 are the same as those of the valve end cover 30. Figure 2 The seals in the illustrated four-way fluid valve are substantially identical, differing only in that there are five openings corresponding to the five ports in the valve end cover 30 .

[0078] Fig.9A and Fig. 9B A preferred embodiment of the valve core 20 of the five-way fluid valve 100' according to the utility model is shown. As can be seen from the figure, in this embodiment, the difference between the valve core of the five-way fluid valve and the valve core of the four-way fluid valve is only the structure of the second fluid channel 2a, that is, the cross-sectional shape of the second fluid channel. Specifically, the valve core 20 defines a valve core chamber that is closed at the first valve core end 21 and opened at the second valve core end 22, and the central shaft 24 defines a shaft chamber 240 that is closed at the first valve core end and opened at the second valve core end, and the shaft chamber 240 constitutes a part of the second fluid channel 2a.

[0079] See especially Fig. 9B , the projection of the first fluid channel 1a in a plane perpendicular to the central axis 24 is in the form of a first fan ring 26a with the intersection of the center line of the central axis and the plane as the center of the circle, and the projection of the second fluid channel 2a in a plane perpendicular to the central axis 24 is a combination of a second fan ring 26b with the intersection of the center line of the central axis and the plane as the center of the circle and a circle 241 with the intersection as the center of the circle, wherein the center angle of the first fan ring is greater than the center angle of the second fan ring. In the embodiment shown in the figure, the center angle of the first fan ring 26a is, for example, 180°, and the center angle of the second fan ring is 60° to 80°, for example, 70°. However, according to actual needs and the functional mode to be realized, other suitable center angles can also be selected, which are also covered within the scope of the present application.

[0080] In this embodiment of the utility model, through the layout of two fluid channels in the valve core 20 and the coordination of the layout of five ports in the valve end cover 30, when the valve core 20 is rotated in the valve chamber, the five-way fluid valve 100 can be regularly switched between multiple different working modes (positions).

[0081] Fig. 10A The first working mode of the five-way fluid valve 100' is shown, wherein the rotation angle of the valve core 20 is set to 0°. In the first working mode, the first port 1 and the fourth port 4 are fluidically connected through the first fluid channel 1a, the second port 2 and the fifth port 5 are fluidically connected through the second fluid channel 2a, and the third port 3 is cut off, i.e., not fluidically connected to other ports.

[0082] Fig. 10BThe second working mode of the five-way fluid valve 100' is shown, wherein the rotation angle of the valve core 20 is 25°, that is, the valve core 20 in the first working mode is rotated 25° clockwise to switch the four-way fluid valve to the second working mode. In the second working mode, the fourth port 4 is fluidically connected with the first port 1 and the third port 3 through the first fluid channel 1a, respectively, and the second port 3 and the fifth port 5 are fluidically connected through the second fluid channel 2a.

[0083] Fig. 10C The third working mode of the five-way fluid valve 100' is shown, wherein the rotation angle of the valve core 20 is 50°, that is, the valve core 20 in the first working mode is rotated 50° in the clockwise direction to switch the five-way fluid valve to the third working mode. In the third working mode, the third port 3 and the fourth port 4 are fluidically connected through the first fluid channel 1a, the second port 2 and the fifth port 5 are fluidically connected through the second fluid channel 2a, and the first port 1 is cut off, that is, it is not fluidically connected with other ports.

[0084] Fig. 10D The fourth working mode of the five-way fluid valve 100' is shown, wherein the rotation angle of the valve core 20 is 180°, that is, the valve core 20 in the first working mode is rotated 180° in the clockwise direction to switch the multi-way fluid valve to the fourth working mode. In the fourth working mode, the second port 2 and the third port 3 are fluidically connected through the first fluid channel 1a, the fourth port 4 and the fifth port 5 are fluidically connected through the second fluid channel 2a, and the first port is cut off, that is, it is not connected with other ports.

[0085] Fig. 10E The fifth working mode of the five-way fluid valve 100' is shown, wherein the rotation angle of the valve core 20 is 205°, that is, the valve core 20 in the first working mode is rotated 205° in the clockwise direction to switch the multi-way fluid valve to the fifth working mode. In the fifth working mode, the second port 2 is fluidically connected with the first port 1 and the third port 3 through the first fluid channel 1a, respectively, and the fourth port 4 is fluidically connected with the fifth port 5 through the second fluid channel 2a.

[0086] Fig.10F The sixth working mode of the five-way fluid valve 100' is shown, wherein the rotation angle of the valve core 20 is 230°, that is, the valve core 20 in the first working mode is rotated 230° clockwise to switch the five-way fluid valve to the sixth working mode. In the sixth working mode, the first port 1 and the second port 2 are fluidically connected through the first fluid channel 1a, and the fourth port 4 and the fifth port 5 are fluidically connected through the second fluid channel 2a; the third port is cut off, that is, it is not fluidically connected with other ports.

[0087] It should be understood that the multiple working modes of the five-way fluid valve 100 ′ given above may also include other working modes in which the valve core is rotated to other suitable angles different from the above rotation angles, and is not limited to the six working modes given above.

[0088] Although the utility model has been disclosed as a preferred embodiment, the utility model is not limited thereto. Any combination, change and modification made by any person skilled in the art without departing from the spirit and scope of the utility model should be included in the protection scope of the utility model, so the protection scope of the utility model should be based on the scope defined by the claims.

Claims

1. A multi-way fluid valve, characterized in that: The multi-way fluid valve comprises: a valve housing having a first housing end and an opposite second housing end and defining a cylindrical valve chamber extending between the first housing end and the second housing end; a valve end cover having a plurality of ports and located at the first housing end of the valve housing; and a valve core, the valve core defining two fluid passages independent of each other and rotatably arranged in the valve chamber; Wherein, the two fluid channels and the multiple ports are configured so that by rotating the valve core, the multi-way fluid valve can be switched between multiple different working modes, wherein in each of the working modes, at least one pair of the multiple ports is fluidly connected through the corresponding fluid channels, while the remaining ports are blocked.

2. The multi-way fluid valve according to claim 1, characterized in that: The valve core has a first valve core end, a second valve core end, a cylindrical peripheral wall extending between the first valve core end and the second valve core end, and a cylindrical central rotation axis, wherein the central rotation axis extends beyond the first valve core end; The valve core defines a valve core chamber that is closed at the first valve core end and open at the second valve core end, and the valve core chamber defines the two fluid passages by two axial partitions extending between the peripheral wall and the central axis; The multi-way fluid valve further comprises a flat sealing member having openings corresponding in number to the plurality of ports and fixed to a side of the valve end cover facing the valve core.

3. The multi-way fluid valve according to claim 2, characterized in that: The multi-way fluid valve is a four-way fluid valve, wherein the plurality of ports are four ports including a first port, a second port, a third port, and a fourth port circumferentially spaced apart and arranged in the valve end cover.

4. The multi-way fluid valve according to claim 3, characterized in that: The two fluid channels include a first fluid channel and a second fluid channel, wherein the projection of the first fluid channel in a plane perpendicular to the central rotation axis is in the form of a first fan ring with the intersection of the centerline of the central rotation axis and the plane as the center, and the projection of the second fluid channel in a plane perpendicular to the central rotation axis is in the form of a second fan ring with the intersection of the centerline of the central rotation axis and the plane as the center, wherein the center angle of the first fan ring is greater than the center angle of the second fan ring.

5. The multi-way fluid valve according to claim 4, characterized in that: The first port, the second port, the third port and the fourth port are in the shape of sector rings with the same size and are equidistantly spaced apart; the central angle of the first sector ring is 180°, and the central angle of the second sector ring is 60° to 80°.

6. The multi-way fluid valve according to claim 4, characterized in that: The multiple different operating modes of the four-way fluid valve include at least two of the following operating modes: a first working mode, in which the second port and the third port are in fluid communication through the first fluid channel, and the first port and the fourth port are blocked; A second working mode, wherein the four-way fluid valve can be switched to the second working mode by rotating the valve core in the first working mode by 25° in a clockwise direction. In the second working mode, the second port and the third port are fluidically connected through the first fluid channel, and the first port and the fourth port are fluidically connected through the second fluid channel; A third working mode, wherein the four-way fluid valve can be switched to the third working mode by rotating the valve core in the first working mode by 70° in a clockwise direction. In the third working mode, the third port is respectively connected with the second port and the fourth port through the first fluid channel, and the first port is cut off; A fourth working mode, wherein the four-way fluid valve can be switched to the fourth working mode by rotating the valve core in the first working mode by 90° in a clockwise direction. In the fourth working mode, the third port and the fourth port are fluidly connected through the first fluid channel, and the first port and the second port are blocked; A fifth working mode, wherein the four-way fluid valve can be switched to the fifth working mode by rotating the valve core in the first working mode by 115° in a clockwise direction. In the fifth working mode, the first port and the second port are fluidically connected through the second fluid channel, and the third port and the fourth port are fluidically connected through the first fluid channel. A sixth working mode, wherein the four-way fluid valve can be switched to the sixth working mode by rotating the valve core in the first working mode by 220° in a clockwise direction. In the sixth working mode, the first port and the fourth port are fluidically connected through the first fluid channel, and the second port and the third port are blocked; a seventh working mode, wherein the four-way fluid valve can be switched to the seventh working mode by rotating the valve core in the first working mode by 250° in a clockwise direction, wherein the first port is respectively connected to the second port and the fourth port through the first fluid channel, and the third port is cut off; and The eighth working mode is to switch the four-way fluid valve to the eighth working mode by rotating the valve core in the first working mode by 270° in a clockwise direction. In the eighth working mode, the first port and the second port are fluidly connected through the first fluid channel, and the third port and the fourth port are blocked.

7. The multi-way fluid valve according to claim 2, characterized in that: The multi-way fluid valve is a five-way fluid valve, and the plurality of ports are five ports, wherein the five ports include a first port, a second port, a third port and a fourth port arranged in the valve end cover at intervals along the circumferential direction, and a fifth port located at the center of the valve end cover.

8. The multi-way fluid valve according to claim 7, characterized in that: The two fluid channels include a first fluid channel and a second fluid channel; The central shaft defines a shaft chamber that is closed at the first end and open at the second end, and the shaft chamber constitutes a portion of the second fluid passage; The projection of the first fluid channel in the plane perpendicular to the central rotation axis is in the form of a first fan ring with the intersection of the center line of the central rotation axis and the plane as the center, and the projection of the second fluid channel in the plane perpendicular to the central rotation axis is a combination of a second fan ring with the intersection of the center line of the central rotation axis and the plane as the center and a circle with the intersection as the center, wherein the center angle of the first fan ring is greater than the center angle of the second fan ring.

9. The multi-way fluid valve according to claim 8, characterized in that: The first port, the second port, the third port and the fourth port are in the shape of fan rings of the same size and are equidistantly spaced apart, and the fifth port is in the shape of a circle; the central angle of the first fan ring is 180°, and the central angle of the second fan ring is 60° to 80°.

10. The multi-way fluid valve according to claim 8, characterized in that: The multiple different working modes of the five-way fluid valve include at least two of the following working modes: a first working mode, in which the first port and the fourth port are in fluid communication through the first fluid channel, the second port and the fifth port are in fluid communication through the second fluid channel, and the third port is blocked; A second working mode, wherein the five-way fluid valve can be switched to the second working mode by rotating the valve core in the first working mode by 25° in a clockwise direction. In the second working mode, the fourth port is respectively in fluid communication with the first port and the third port through the first fluid channel, and the second port is in fluid communication with the fifth port through the second fluid channel; A third working mode, in which the five-way fluid valve can be switched to the third working mode by rotating the valve core in the first working mode by 50° in a clockwise direction. In the second working mode, the third port and the fourth port are fluidically connected through the first fluid channel, the second port and the fifth port are fluidically connected through the second fluid channel, and the first port is cut off; A fourth working mode, wherein the five-way fluid valve can be switched to the fourth working mode by rotating the valve core in the first working mode by 180° in a clockwise direction. In the fourth working mode, the second port and the third port are fluidically connected through the first fluid channel, the fourth port and the fifth port are fluidically connected through the second fluid channel, and the first port is cut off; a fifth working mode, wherein the five-way fluid valve can be switched to the fifth working mode by rotating the valve core in the first working mode by 205° in a clockwise direction, wherein the second port is fluidically connected with the first port and the third port respectively through a first fluid channel, and the fourth port is fluidically connected with the fifth port through the second fluid channel; and The sixth working mode is to switch the five-way fluid valve to the sixth working mode by rotating the valve core in the first working mode by 230° in a clockwise direction. In the sixth working mode, the first port and the second port are fluidically connected through the first fluid channel, and the fourth port and the fifth port are fluidically connected through the second fluid channel; the third port is cut off.

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