Valve core member and multi-way valve

Abstract

a first through hole (12) and a second through hole (13) communicating with the flow passage (11) in a side wall of the inner cylinder structure (10); the outer cylinder structure (20) surrounds the inner cylinder structure (10); the outer cylinder structure (20) has a plurality of layers of flow chambers (21) arranged along the axial direction of the inner cylinder structure (10); the flow chambers (21) of each layer are partitioned into a plurality of sub-chambers along the circumferential direction of the inner cylinder structure (10); the openings of each sub-chamber face outward from the valve core member; the first through hole (12) communicating with one sub-chamber in the flow chamber (21) of one layer; and the second through hole (13) communicating with one sub-chamber in the flow chamber (21) of another layer. In such a valve core member, communication between the inner and outer tube structures is achieved by the first through hole, flow passage, and second through hole of the inner tube structure, and further, communication across the layers of the multiple flow chambers of the valve core member is achieved by the inner tube structure, thereby improving the performance and range of application of the valve core member.

Claims

1. A valve core member including an inner cylinder structure (10) and an outer cylinder structure (20), The inner cylindrical structure (10) has a flow passage (11) extending along its axial direction, and a side wall of the inner cylindrical structure (10) has a first through hole (12) and a second through hole (13) communicating with the flow passage (11), the outer cylindrical structure (20) surrounds the inner cylindrical structure (10), the outer cylindrical structure (20) has a plurality of layers of flow chambers (21) along the axial direction of the inner cylindrical structure (10), the flow chambers (21) of each layer are partitioned into a plurality of sub-chambers along the circumferential direction of the inner cylindrical structure (10), and the openings of each of the sub-chambers all face the outside of the valve core member, A valve core member, wherein the first through hole (12) communicates with one subchamber within the flow chamber (21) of one layer, and the second through hole (13) communicates with one subchamber within the flow chamber (21) of another layer.

2. 2. The valve core member according to claim 1, wherein the outer tube structure (20) has at least three layers of the flow chambers (21), and at least one layer of the flow chambers (21) is interposed between the first through hole (12) and the second through hole (13) in the axial direction of the inner tube structure (10).

3. 3. The valve core member according to claim 2, wherein the outer tube structure (20) has four layers of the flow chambers (21), and two layers of the flow chambers (21) are interposed between the first through hole (12) and the second through hole (13) in the axial direction of the inner tube structure (10).

4. 2. The valve core member according to claim 1, wherein the inner cylinder structure (10) includes an inner cylinder body (14), a rotating shaft structure (15) and a plurality of support plates (16), the rotating shaft structure (15) penetrates the inner cylinder body (14), both ends of the support plate (16) are connected to an outer wall of the rotating shaft structure (15) and an inner wall of the inner cylinder body (14), respectively, the plurality of support plates (16) are distributed along the circumferential direction of the inner cylinder body (14), the outer cylinder structure (20) surrounds the inner cylinder body (14), the flow passage (11) is located between the inner cylinder body (14), the rotating shaft structure (15), and two adjacent support plates (16), and the first through hole (12) and the second through hole (13) are both located in the inner cylinder body (14).

5. 2. The valve core member according to claim 1, wherein the outer tube structure (20) includes a plurality of radial spacers (22) and a plurality of axial spacers (23), the radial spacers (22) are provided along a radial direction of the inner tube structure (10), the axial spacers (23) are provided along an axial direction of the inner tube structure (10), the plurality of radial spacers (22) are distributed at intervals along the axial direction of the inner tube structure (10), a region between two adjacent radial spacers (22) forms one layer of the flow chamber (21), and the plurality of axial spacers (23) are distributed at intervals along a circumferential direction of the inner tube structure (10) to divide the flow chamber (21) into a plurality of sub-chambers.

6. The valve core member according to claim 1 , wherein the valve core member is of unitary construction.

7. The valve core member includes a first valve core (30) and a second valve core (40) that are rotatable relative to one another, the first valve core (30) includes a first inner tube (31) and a first outer tube (32) that is provided to surround the first inner tube (31), the second valve core (40) includes a second inner tube (41) and a second outer tube (42) that is provided to surround the second inner tube (41), the first inner tube (31) and the second inner tube (41) are connected to form the inner tube structure (10), the first outer tube (32) and the second outer tube (42) form the outer tube structure (20), and the first inner tube (31) has a first passage (111) and the first through hole (111).

2. The valve core member according to claim 1, wherein the second inner cylinder (41) has a second passage (112) and the second through hole (13), the first passage (111) and the second passage (112) are connected to form the flow passage (11), the first outer cylinder (32) has at least one layer of the flow chambers (21), the second outer cylinder (42) has at least one layer of the flow chambers (21), the first through hole (12) is connected to one of the flow chambers (21) of the first outer cylinder (32), and the second through hole (13) is connected to one of the flow chambers (21) of the second outer cylinder (42).

8. The first inner cylinder (31) includes a first cylindrical body (311), a first rotating shaft (312) and a plurality of first sub-plates (313), the first rotating shaft (312) penetrates the first cylindrical body (311), both ends of the first sub-plates (313) are connected to the outer wall of the first rotating shaft (312) and the inner wall of the first cylindrical body (311), respectively, the first through hole (12) is provided in the first cylindrical body (311), the first passage (111) is located between the first cylindrical body (311), the first rotating shaft (312), and two adjacent first sub-plates (313), and the second inner cylinder (41) includes a second 8. The valve core member of claim 7, comprising a cylindrical body (411), a second rotating shaft (412) and a plurality of second sub-plates (413), wherein the second rotating shaft (412) penetrates the second cylindrical body (411) and the first rotating shaft (312), both ends of the second sub-plates (413) are connected to an outer wall of the second rotating shaft (412) and an inner wall of the second cylindrical body (411), respectively, the second through hole (13) is provided in the second cylindrical body (411), and the second passage (112) is located between the second cylindrical body (411), the second rotating shaft (412), and two adjacent second sub-plates (413).

9. A multi-way valve comprising a valve core member according to any one of claims 1 to 8.

10. 10. The multi-way valve according to claim 9, wherein the valve core member has N layers of the flow chambers (21), the multi-way valve further comprises a valve body (50) and an actuator (60), the valve body (50) has 2N valve ports (51), the valve core member is rotatably disposed in the chamber of the valve body (50), the flow chambers (21) of each layer correspond to two of the valve ports (51), and the actuator (60) is drivingly connected to the valve core member.

11. 11. The multi-way valve according to claim 10, wherein the valve body (50) includes a valve housing (52), an end cover, and an anti-rotation structure, the valve port (51) is provided in the valve housing (52), the valve housing (52) has an accommodating chamber (521) and an opening (522) communicating with each other, the end cover is provided in the opening of the valve housing (52), the valve core member is rotatably provided in the accommodating chamber (521), the anti-rotation structure is provided between the valve housing (52) and the valve core member, and the anti-rotation structure is used to limit a rotation angle of the valve core member within the valve housing (52).

12. The multi-way valve of claim 11, wherein the anti-rotation structure includes a first anti-rotation portion (53) and a second anti-rotation portion (54), the first anti-rotation portion (53) being provided at an end of the valve core member, the second anti-rotation portion (54) being provided on the valve housing (52), and the second anti-rotation portion (54) being located within the accommodating chamber (521), the second anti-rotation portion (54) having a first side (5411) and a second side (5412) provided opposite each other along the rotation direction of the valve core member, and the first anti-rotation portion (53) can be limit-engaged with the first side (5411) and the second side (5412) to limit the rotation angle of the valve core member.

13. The multi-way valve of claim 12, wherein the second anti-rotation portion (54) is removably connected to the valve housing (52).

14. 14. The multi-way valve according to claim 13, wherein the second anti-rotation portion (54) includes a connection portion (542) and an abutment portion (543), the connection portion (542) is detachably connected to the valve housing (52) and is located on the outer periphery of the valve core member, the abutment portion (543) is provided on the connection portion (542), the abutment portion (543) and the connection portion (542) are distributed along the radial direction of the valve housing (52), the abutment portion (543) is located at one end of the valve core member, and the abutment portion (543) is limitingly engaged with the first anti-rotation portion (53).

15. an axial positioning structure is provided between the valve housing (52) and the connecting portion (542), and the axial positioning structure is capable of positioning an axial position of the connecting portion (542) within the valve housing (52); And / or a circumferential positioning structure is further provided between the valve housing (52) and the connection portion (542), and the circumferential positioning structure is used to position the circumferential position of the connection portion (542) within the valve housing (52).

16. The inner wall of the valve housing (52) is provided with two positioning protrusions (522), the two positioning protrusions (522) are distributed at intervals along the circumferential direction of the valve housing (52) and are located on the outer periphery of the valve core member, and a locking gap is formed between the two positioning protrusions (522); The connection portion (542) extends along the circumferential direction of the valve housing (52), and includes a first positioning portion (5421) and a second positioning portion (5422) that are provided in order along the axial direction of the valve housing (52), and along the circumferential direction of the valve housing (52), the first positioning portion (5421) has a first end (54211) and a second end (54212) that are provided opposite to each other, and the second positioning portion (5422) has a third end (54221) and a fourth end (54222) that are provided opposite to each other, and the third end (54221) is aligned with the first end (54221) and the second end (54222) that is aligned with the first end (54221). the fourth end (54222) is provided adjacent to the second end (54212), the first end (54211) and the second end (54212) protrude from the third end (54221) and the fourth end (54222) corresponding to the third end (54221) and the fourth end (54222) in the circumferential direction of the valve housing (52), and the side surfaces of the first end (54211) and the second end (54212) facing the second positioning portion (5422) abut and engage with the positioning protrusion portion (522) to form the axial positioning structure; The multi-way valve of claim 15, wherein the second positioning portion (5422) is located within the locking gap, and both ends of the second positioning portion (5422) are interference-fitted into the two positioning protrusions (522), respectively, to form the circumferential positioning structure.

17. A multi-way valve as described in claim 16, wherein end surfaces of the third end (54221) and the fourth end (54222) both have a limiting surface (54223) and an engaging inclined surface (54224) connected to each other, the limiting surface (54223) and the engaging inclined surface (54224) are arranged along the axial direction of the valve housing (52), the limiting surface (54223) is arranged close to the first positioning portion (5421), and the circumferential dimensions of the two engaging inclined surfaces (54224) of the third end (54221) and the fourth end (54222) gradually become smaller in a direction away from the first positioning portion (5421).

18. 17. The multi-way valve according to claim 16, wherein the positioning projection (522) is formed by recessing a side wall of the valve housing (52) towards the receiving chamber (521).

19. The multi-way valve according to claim 12, wherein the second anti-rotation portion (54) is provided with a weight-reducing structure (544).

20. The plurality of valve ports (51) include at least an inlet, a first outlet, a second outlet, and a third outlet distributed in an array, the inlet and the second outlet being located in one row, and the first outlet and the third outlet being located in another row; 11. The multi-way valve of claim 10, wherein the valve core member has a plurality of communication structures, and any four of the sub-chambers distributed in an array form one of the communication structures, and the plurality of sub-chambers are an inlet chamber, a first chamber, a second chamber and a third chamber, respectively, the inlet chamber fits to the inlet, the first chamber fits to the first outlet, the second chamber fits to the second outlet, and the third chamber fits to the third outlet, and the valve core member communicates the inlet with the first outlet, the second outlet and the third outlet through the plurality of communication structures.

21. 21. The multi-way valve of claim 20, wherein the multi-way valve is a four-way valve, the plurality of communication structures are distributed along a circumferential direction of the valve core member, the plurality of communication structures include a first communication structure, a first chamber (2112) of the first communication structure and an inlet chamber (2111) of the first communication structure are independent of each other, a second chamber (2113) of the first communication structure is in communication with the inlet chamber (2111) of the first communication structure, a third chamber (2114) of the first communication structure is in communication with the second chamber (2113) of the first communication structure, and the valve core member further includes a first spacer (71), the first spacer (71) is provided in the second chamber (2113) of the first communication structure and is located between the second chamber (2113) of the first communication structure and the second outlet, thereby blocking the second chamber (2113) of the first communication structure from the second outlet.

22. The multi-way valve of claim 21, wherein the valve core member includes a top plate (72) and a bottom plate (74), the inner cylinder structure (10) and the outer cylinder structure (20) are connected to form a main body (73), the top plate (72) and the bottom plate (74) are provided at both ends of the main body (73), and the valve core member is further provided with an opening structure (75), the opening structure (75) being provided corresponding to the second chamber (2113) of the first communication structure.

23. The multi-way valve of claim 22, wherein the second chamber (2113) of the first communication structure is provided adjacent to the bottom plate (74), the through structure (75) includes a through hole (751) and a cover plate (752), the through hole (751) is provided in the bottom plate (74), the cover plate (752) is located outside the bottom plate (74), and the cover plate (752) can seal the through hole (751).

24. 24. The multi-way valve according to claim 23, wherein a welding rib (7511) is provided on an end face of one end of the through hole (751) away from the main body (73), the welding rib (7511) surrounding the outer periphery of the through hole (751), the cover plate (752) including a first step segment (7521), a second step segment (7522) and a third step segment (7523) connected in sequence, the first step segment (7521), the second step segment (7522) and the third step segment (7523) having gradually increasing structural dimensions in the circumferential direction, the first step segment (7521) being inserted into the through hole (751), the end face of the third step segment (7523) facing the main body (73) being in close contact with the end face of the welding rib (7511), and the third step segment (7523) being fixedly connected to the welding rib (7511).

25. The multi-way valve according to claim 24, wherein the outer periphery of the welding rib (7511) is provided with a welding avoidance groove (7512).

26. A multi-way valve as described in claim 24, wherein a limiting convex rib (4231) is provided on a side wall of the first step segment (7521), and the limiting convex rib (4231) abuts against an inner wall of the through hole (751) to fix the position of the first step segment (7521) within the through hole (751).

27. The multi-way valve of claim 20, wherein the plurality of communication structures further includes a second communication structure, the inlet chamber (2121) of the second communication structure being connected to the first chamber (2122) of the second communication structure, and the inlet chamber (2121) of the second communication structure, the second chamber (2123) of the second communication structure, and the third chamber (2124) of the second communication structure are all independent of each other.

28. The multi-way valve of claim 20, wherein the plurality of communication structures further includes a third communication structure, the inlet chamber (2131) of the third communication structure being connected to the second chamber (2133) of the third communication structure, and the inlet chamber (2131) of the third communication structure, the first chamber (2132) of the third communication structure, and the third chamber (2134) of the third communication structure are all independent of each other.

29. 21. The multi-way valve of claim 20, wherein the plurality of communication structures further includes a fourth communication structure, an inlet chamber of the fourth communication structure communicating with each of the first chamber of the fourth communication structure and the second chamber of the fourth communication structure, and the inlet chamber of the fourth communication structure and the third chamber of the fourth communication structure being independent of each other.

30. 21. The multi-way valve of claim 20, wherein the inlet and the third outlet are diagonally disposed and the inlet chamber and the third chamber are diagonally disposed.

31. the valve port (51) further includes at least one fourth outlet, the fourth outlet being located between the inlet and the second outlet and in the same row as the inlet and the second outlet; at least one fourth chamber is further provided between the entrance chamber and the second chamber, the entrance chamber, the fourth chamber and the second chamber being located in the same row, and the third chamber being located in a different row from the entrance chamber, the fourth chamber and the second chamber; 21. The multi-way valve according to claim 20, wherein the plurality of communication structures further include a fifth communication structure, a first chamber of the fifth communication structure and an inlet chamber of the fifth communication structure are independent of each other, a fourth chamber of the fifth communication structure communicates with the inlet chamber of the fifth communication structure, the fourth chamber of the fifth communication structure communicates with the second chamber of the fifth communication structure, and a third chamber of the fifth communication structure communicates with the second chamber of the fifth communication structure, and the valve core member further includes a second spacer, the second spacer being provided in each of the second chamber and the fourth chamber of the fifth communication structure and correspondingly positioned between the second chamber and the second outlet, and between the fourth chamber and the fourth outlet, of the fifth communication structure, so that the second chamber of the fifth communication structure is blocked from the second outlet, and the fourth chamber is blocked from the fourth outlet.

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