Valve device and integrated assembly

Abstract

The valve device comprises a valve body assembly and a valve element assembly, the valve body assembly or the integrated assembly is provided with a containing cavity, and at least part of the valve element assembly is located in the containing cavity; the valve element assembly comprises a valve element and a first sealing piece, the valve element comprises a peripheral part, and the first sealing piece is fixedly connected with the peripheral part. Due to the fact that the first sealing piece is fixedly connected with the peripheral portion, when the valve device or the integrated assembly is assembled, the first sealing piece and the valve element can be arranged in the containing cavity together, the number of parts needing to be assembled is reduced, and assembling is simplified.

Description

Technical Field

[0001] The present invention relates to the field of fluid control technology, and in particular to a valve device and an integrated component. Background Art

[0002] The valve device is used to control the opening or closing or switching of a fluid channel, etc. In the related art, the valve device includes a valve body, a seal and a valve core, and the seal and the valve core are separate structures. During assembly, the seal and the valve core need to be installed in the valve body separately. Summary of the invention

[0003] The object of the present application is to provide a valve device and an integrated assembly which can simplify assembly.

[0004] One embodiment of the present application provides a valve device, including a valve body assembly and a valve core assembly, the valve body assembly having a accommodating cavity, at least part of the valve core assembly being located in the accommodating cavity; the valve core assembly including a valve core and a first sealing member, the valve core including an outer peripheral portion, and the first sealing member being fixedly connected to the outer peripheral portion.

[0005] One embodiment of the present application provides an integrated component, including a connecting component and a valve core component, the connecting component has a accommodating cavity, at least part of the valve core component is located in the accommodating cavity; the valve core component includes a valve core and a first sealing member, the valve core includes an outer peripheral portion, and the first sealing member is fixedly connected to the outer peripheral portion.

[0006] In the valve device and integrated assembly provided in the embodiments of the present application, since the first seal is fixedly connected to the outer periphery, when assembling the valve device or the integrated assembly, the first seal can be installed together with the valve core into the accommodating cavity, thereby reducing the number of parts that need to be assembled, thereby simplifying the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A schematic diagram of a three-dimensional structure of an embodiment of a valve device of the present application is shown;

[0008] Figure 2 Shows Figure 1 An exploded schematic diagram of the valve device shown;

[0009] Figure 3 Shows Figure 1 A schematic structural diagram of the valve device at an angle;

[0010] Figure 4 Shows Figure 3 The cross-sectional structure diagram of the valve device shown along line AA;

[0011] Figure 5 An exploded schematic diagram of one embodiment of a valve core assembly is shown;

[0012] Figure 6 Shows Figure 4 A schematic three-dimensional cross-sectional structural diagram of a valve body assembly of the valve device shown;

[0013] Figure 7 Shows Figure 5 A schematic structural diagram of a valve core assembly at one angle is shown;

[0014] Figure 8 Shows Figure 7 The three-dimensional cross-sectional structure diagram of the valve core assembly along line BB is shown;

[0015] Fig. 9 An exploded schematic diagram of another embodiment of the valve core assembly of the present application is shown;

[0016] Fig.10 Shown include Fig. 9 An exploded schematic diagram of an embodiment of a valve device of a valve core assembly is shown;

[0017] Fig.11 Shows Fig.10 A schematic structural diagram of the valve device at an angle;

[0018] Fig.12 Shows Fig.11 The partial cross-sectional structure schematic diagram of the valve device along the CC line shown;

[0019] Fig.13 A partial cross-sectional structural schematic diagram of another embodiment of the valve core assembly of the present application is shown;

[0020] Fig.14 A three-dimensional structural schematic diagram of another embodiment of the valve device of the present application is shown;

[0021] Fig.15 Shows Fig.14 an exploded schematic diagram of a portion of the valve assembly shown;

[0022] Fig.16 Shows Fig.14 A schematic cross-sectional view of the valve device shown;

[0023] Fig.17 An assembly schematic diagram showing a portion of one embodiment of an integrated assembly of the present application;

[0024] Fig.18 A cross-sectional structural schematic diagram of a portion of another embodiment of the integrated assembly of the present application is shown;

[0025] Fig.19 Shows Fig.18 a schematic assembly diagram of a portion of the integrated assembly shown;

[0026] Fig. 20 A three-dimensional structural schematic diagram of another embodiment of the valve device of the present application is shown;

[0027] Fig.21 A three-dimensional structural schematic diagram of another embodiment of the valve core assembly of the present application is shown;

[0028] Fig. 22 Shows Fig.21 A schematic diagram of a three-dimensional cross-sectional structure of the valve core assembly shown;

[0029] Fig.23 A three-dimensional structural schematic diagram of another embodiment of the valve device of the present application is shown;

[0030] Fig.24 A three-dimensional structural schematic diagram of another embodiment of the valve core assembly of the present application is shown;

[0031] Fig.25 Shows Fig.24 A schematic structural diagram of a valve core assembly at an angle shown;

[0032] Fig.26 Shows Fig.25 The cross-sectional structure diagram of the valve core assembly along the DD line is shown;

[0033] Fig. 27 A three-dimensional cross-sectional structural schematic diagram of another embodiment of the valve core assembly of the present application is shown.

[0034] Reference numerals:

[0035] 100, 200, 300, 400, valve device;

[0036] 10. Valve body assembly; 1. First valve body; 2. Second valve body; 3. Third valve body; 30. Accommodating chamber; 31. Inner wall; 33. Outer wall; 35. First connecting port; 36. Second connecting port; 20. Valve core assembly; 7. Valve core; 71. First conducting channel; 72. Second conducting channel; 73. Third conducting channel; 74. Peripheral portion; 741. Peripheral surface portion; 742. Groove; 70. Opening; 711. First opening; 712. Second opening; 713. Third opening; 714. Fourth opening; 75. Main body; 5. First sealing member; 51. First sealing portion; 52. Second sealing portion; 53. Through hole; 511. First component; 512. Second component; 513. Protrusion; 4. Second sealing member; 6. Connecting assembly; 61. First flow channel; 62. Second flow channel; 63. Mounting chamber; 8. Driving assembly. DETAILED DESCRIPTION

[0037] The embodiments are described in detail below with reference to the accompanying drawings.

[0038] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In this article, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply that there is any such actual relationship or order between these components. It should be noted that the "limited connection" in this application includes detachable connections, such as threaded connections, snap connections, etc., and the "fixed connection" in this application includes non-detachable connections, such as welding, bonding, vulcanization fixation, riveting, insert injection molding, etc.

[0039] like Figures 1 to 8 As shown, the valve device 100 includes a valve body assembly 10 and a valve core 7. The valve body assembly 10 has an accommodating cavity 30, and at least a portion of the valve core 7 is located in the accommodating cavity 30.

[0040] like Figure 4 As shown, the axial direction of the valve device 100 is defined, and the axial direction of the valve device 100 is indicated by H in the figure. The rotation axis of the valve core 7 is defined, and the valve core 7 can rotate around the rotation axis. The rotation axis of the valve core 7 is indicated by S1 in the figure. The axial direction of the valve device 100 is the same as the extension direction of the rotation axis of the valve core 7.

[0041] like Figures 1 to 8 As shown, the valve core 7 includes an outer peripheral portion 74, the valve core 7 has a first conduction channel 71, and the first conduction channel 71 has one or more openings 70 in the outer peripheral portion 74. The valve device 100 includes a first sealing member 5, the first sealing member 5 is fixedly connected to the outer peripheral portion 74, the first sealing member 5 has one or more through holes 53, and at least one opening 70 is connected to one of the through holes 53. Since the first sealing member 5 is fixedly connected to the outer peripheral portion 74, the first sealing member 5 and the valve core 7 can be installed in the accommodating cavity 30 together during assembly, thereby reducing the number of parts to be assembled, thereby simplifying assembly, and reducing the risk of position deviation between the first sealing member 5 and the valve core 7 after assembly, thereby reducing the risk of leakage. In addition, compared with a valve device that requires a separate valve seat, the valve seat can be saved, thereby reducing the radial size of the valve device, which is conducive to saving installation space. In this embodiment, the first sealing member 5 has four through holes 53, and the outer peripheral portion 74 has four openings 70, and the openings 70 correspond to the through holes 53 one by one.

[0042] like Figure 4 , Figure 6As shown, the wall forming the accommodating chamber 30 includes an inner wall 31, the inner wall 31 faces the outer peripheral portion 74 of the valve core 7, and along the radial direction of the valve device 100, at least part of the first sealing member 5 is located between the inner wall 31 and the outer peripheral portion 74 of the valve core 7, the inner wall 31 abuts against the first sealing member 5, and the outer peripheral portion 74 of the valve core 7 abuts against the first sealing member 5, so that a seal can be formed between the inner wall 31 and the outer peripheral portion 74 of the valve core 7. The inner wall 31 has more than one first communication port 35, and when the valve core 7 rotates to a preset angle, at least one opening 70 can be communicated with one of the first communication ports 35 through the through hole 53.

[0043] In the present embodiment, the first seal 5 is sealed with the peripheral portion 74, and the first seal 5 is fixed to the peripheral portion 74 by vulcanization, which can improve the firmness of the first seal 5 after being fixed to the peripheral portion 74. Specifically, the peripheral portion 74 is made of metal, such as stainless steel, and the portion where the first seal 5 is fixed to the peripheral portion 74 is made of rubber, such as EPDM. Since the surface energy of the metal is relatively high, the firmness after vulcanization can be improved, so that the first seal 5 can be fixed to the peripheral portion 74 of the valve body assembly 10 more firmly, reducing the risk of leakage. In other embodiments, the first seal 5 and the peripheral portion 74 can be fixed by bonding. The valve device of the present application is particularly suitable for environments with relatively high pressures such as refrigeration cycles.

[0044] In this embodiment, the first sealing member 5 is an elastic member. The first sealing member 5 is composed of a uniform material. The constituent material of the first sealing member 5 includes rubber. The first sealing member 5 is slidably matched with the inner side wall 31 .

[0045] like Figure 5 , Figure 8 As shown, the outer peripheral portion 74 has an outer peripheral surface 741 and a groove 742, the groove 742 is recessed in the outer peripheral surface 741, a part of the first sealing member 5 is located in the groove 742, and the groove 742 can play the role of limiting the first sealing member 5. The opening 70 is located in the outer peripheral surface 741, and the other part of the first sealing member 5 protrudes from the outer peripheral surface 741 along the radial direction of the valve device 100, so that the opening 70 and the inner side wall 31 are arranged in a gap, and the edge of the opening 70 does not need to be processed with a chamfer, which can reduce the processing difficulty and cost of the valve core 7. At least part of the first sealing member 5 is fixedly connected to the wall forming the groove 742. Since the surface area of ​​the wall forming the groove 742 is larger than that of the plane, when the first sealing member 5 is fixed to the wall forming the groove 742 by vulcanization, the adhesion area between the first sealing member 5 and the valve core 7 can be increased, thereby increasing the adhesion between the first sealing member 5 and the valve core 7, thereby reducing the risk of the first sealing member 5 falling off.

[0046] like Figure 4 , Figure 5As shown, in this embodiment, the valve core 7 includes a main body 75, a first limiting portion 761, and a second limiting portion 762. The outer peripheral portion 74 is located in the main body 75. The main body 75 is columnar, which is convenient for the valve core 7 and the first sealing member 5 to be installed in the accommodating cavity 30 along the axial direction. In other embodiments, the main body 75 can be cone-shaped, which is convenient for the valve core 7 and the first sealing member 5 to be installed in the accommodating cavity 30 along the axial direction, and the friction between the first sealing member 5 and the valve body assembly 10 can be reduced when installing. Along the axial direction of the valve device 100, the first limiting portion 761 is located on one side of the main body 75, and the second limiting portion 762 is located on the other side of the main body 75. The valve body assembly 10 has a first hole 12, and the first hole 12 extends along the axial direction of the valve device 100. At least part of the first limiting portion 761 is located in the first hole 12 and slidably cooperates with the wall forming the first hole 12. The wall forming the first hole 12 plays a role of radial support for the first limiting portion 761.

[0047] Specifically, the valve body assembly 10 includes a first valve body 1, a second valve body 2 and a third valve body 3. Along the axial direction of the valve device 100, the first valve body 1 and the second valve body 2 are located at the two ends of the valve body assembly 10 and are separated by a distance, and at least part of the valve core 7 is located between the first valve body 1 and the second valve body 2. The first valve body 1 has a first hole 12, and the second valve body 2 has a second hole 22. The first hole 12 and the second hole 22 are coaxially arranged. The first limiting portion 761 of the valve core 7 is located in the first hole 12 and slidably cooperates with the wall forming the first hole 12. The second limiting portion 762 of the valve core 7 is located in the second hole 22 and slidably cooperates with the wall forming the second hole 22. The walls forming the first hole 12 and the second hole 22 radially limit the valve core 7, and the first valve body 1 and the second valve body 2 act as bearings. The third valve body 3 is cylindrical, and along the axial direction of the valve device 100, one end of the third valve body 3 is welded and fixed to the first valve body 1, and the other end of the first valve body 1 is welded and fixed to the second valve body 2, so that the valve body assembly 10 is easy to manufacture. The first valve body 1, the second valve body 2 and the third valve body 3 are all made of metal, such as aluminum or stainless steel, and have high pressure resistance. Therefore, the valve device of the present application is particularly suitable for environments with high pressure such as refrigeration cycles.

[0048] like Figure 9-12As shown, in another embodiment of the valve core assembly 20, the first sealing member 5 includes a first component 511 and a second component 512, the first component 511 is fixedly connected to the second component 512, the first component 511 is an elastic member, the hardness of the second component 512 is greater than the hardness of the first component 511, at least a portion of the first component 511 is fixedly connected to the outer peripheral portion 74, along the radial direction of the valve device 100, at least a portion of the second component 512 is located between the inner side wall 31 and the first component 511, and the second component 512 is slidably matched with the inner side wall 31. The hardness of the second component 512 is greater than the hardness of the first component 511, so that the contact area between the second component 512 and the inner side wall 31 is smaller, which can reduce the friction resistance between the second component 512 and the inner side wall 31, thereby reducing the rotation torque of the valve core 7. Specifically, the material of the second component 512 is fluoroplastic or polyetheretherketone, so that the second component 512 has high lubricity, which can reduce the friction resistance between the second component 512 and the inner side wall 31. In this embodiment, the second component 512 is in the form of a film or a sheet, and the second component 512 is fixed to the first component 511 by a spraying process, which can improve the adhesion between the second component 512 and the first component 511. In some embodiments, the second component 512 is in the form of a film or a sheet, and the second component 512 is fixed to the first component 511 by vulcanization, which can also improve the adhesion between the second component 512 and the first component 511. In some embodiments, the second component 512 can be fixed to the first component 511 by bonding.

[0049] like Fig.13 As shown, in another embodiment of the valve core assembly 20, the second component 512 includes a protrusion 513, the protrusion 513 protrudes outward along the radial direction of the valve device 100, the protrusion 513 surrounds the through hole 53, and the top of the protrusion 513 is arranged in contact with the inner side wall 31. The protrusion 513 makes the contact area between the second component 512 and the inner side wall 31 smaller. Under the same compression amount, the friction resistance between the second component 512 and the inner side wall 31 can be relatively reduced, and the sealing effect is less affected. Specifically, the top of the protrusion 513 can be an arc surface or other convex surface shape, which can reduce the collision between the protrusion 513 and the wall surface at the edge of the first connecting port when the valve core 7 rotates. In other embodiments, on the cross section of the second component 512, the second component 512 can be provided with more than two protrusions 513, so as to improve the sealing effect.

[0050] like Figure 6-Figure 8As shown, the valve body assembly 10 has more than two first communication ports 35, and the first communication ports 35 are located on the inner wall 31. In one embodiment of the valve device 100, the first conducting channel 71 has a first opening 711 and a second opening 712 on the outer peripheral portion 74, at least a portion of the first sealing member 5 surrounds the first opening 711 and separates the first opening 711 from other opening fluids, and at least a portion of the first sealing member 5 surrounds the second opening 712 and separates the second opening 712 from other opening fluids, which can reduce internal leakage of the valve device 100. When the valve core 7 rotates to a predetermined angle, the first opening 711 corresponds to and communicates with one of the first communication ports 35, and the second opening 712 corresponds to and communicates with another one of the first communication ports 35, thereby achieving communication between the two first communication ports 35. In other embodiments, along the circumference of the valve device 100, no seal may be provided between the first opening 711 and the second opening 712, and at least part of the first seal 5 surrounds the first opening 711 and the second opening 712 and separates the first opening 711 and the second opening 712 from other opening fluids, so that communication between the two first communication ports 35 can also be achieved. Fig. 27 As shown, in some embodiments, the first conducting channel 71 forms only one opening in the outer peripheral portion 74 , a portion of the opening can correspond to one of the first connecting ports 35 , and another portion of the opening can correspond to another first connecting port 35 to achieve communication between the two first connecting ports 35 .

[0051] like Figure 6-Figure 8 As shown, in one embodiment of the valve device 100, the valve core 7 has a first conduction channel 71 and a second conduction channel 72. The first conduction channel 71 has a first opening 711 and a second opening 712 at the outer peripheral portion 74, and the second conduction channel 72 has a third opening 713 and a fourth opening 714 at the outer peripheral portion 74. The first opening 711, the second opening 712, the third opening 713 and the fourth opening 714 are sequentially spaced along the circumference of the valve device 100. The valve device 100 has four first communication ports 35, and the four first communication ports 35 are spaced along the circumference of the valve device 100. By controlling the valve core 7, the valve device 100 can realize the function of four-way switching, that is, realize the function of connecting two of the four first communication ports 35. In this embodiment, the height of the opening is defined, and the height of the opening is: the distance between the center of the opening and the first surface along the axial direction of the valve device 100. In this embodiment, the heights of the first opening 711, the second opening 712, the third opening 713 and the fourth opening 714 are substantially the same, and the heights of the four first communication ports 35 are also substantially the same, which can reduce the axial dimension of the valve device 100. It should be noted that "the opening heights are substantially the same" means that at least a portion of each opening is located at the same height, and "the heights of the first communication ports are substantially the same" means that at least a portion of each first communication port 35 is located at the same height.

[0052] Specifically, Figure 5-Figure 8 As shown, the first sealing member 5 includes more than two first sealing portions 51 and two second sealing portions 52, the second sealing portions 52 are distributed along the circumference of the valve device 100, the first sealing portion 51 extends along the axial direction of the valve device 100, and the projection of the second sealing portion 52 on the first surface along the axial direction of the valve device 100 is annular. Along the circumference of the valve device 100, one of the first sealing portions 51 is located between the first opening 711 and the fourth opening 714, wherein another first sealing portion 51 is located between the second opening 712 and the third opening 713, along the axial direction of the valve device 100, the first opening 711, the second opening 712, the third opening 713 and the fourth opening 714 are all located between the two second sealing portions 52, one end of the first sealing portion 51 is connected to one of the second sealing portions 52, and the other end of the first sealing portion 51 is connected to another of the second sealing portions 52, the first sealing portion 51 and the second sealing portion 52 are cross-linked to form a mesh structure, and the first sealing portion 51 and the second sealing portion 52 are cross-linked to form a through hole 53 in the first sealing member 5.

[0053] In another embodiment of the valve device, Figure 14-16 As shown, the valve device 200 includes a drive assembly 8, which is in driving connection with the valve core 7, and the valve core 7 can rotate under the drive of the drive assembly 8. The valve body assembly 10 includes an outer wall 33, and the valve device 200 includes a second sealing member 4, which is fixedly connected to the outer wall 33. The outer wall 33 has one or more second communication ports 36, and the second communication ports 36 are connected to the first communication port 35. At least part of the second sealing member 4 surrounds the second communication port 36. The valve device 200 of this structure is convenient for direct insertion into the communication assembly 6 and forming a seal with the communication assembly 6, which is convenient for assembly.

[0054] Fig.17 An integrated assembly including the aforementioned valve device 200 is shown, and the integrated assembly also includes a connecting assembly 6. The connecting assembly 6 may be in a plate or block shape. Other components included in the integrated assembly may be installed in the connecting assembly 6, such as a valve, a pump, etc., so as to communicate with the valve device 200. Only a part of the connecting assembly 6 is shown in the figure. The connecting assembly 6 has an installation cavity 63. When the valve device 200 is installed in the connecting assembly 6, at least a part of the valve body assembly 10 is located in the installation cavity 63. When the integrated assembly is assembled, at least a part of the valve body assembly 10 is inserted into the installation cavity 63 along the axial direction of the valve device 200.

[0055] In this embodiment, the second sealing member 4 is fixed to the outer side wall 33 by vulcanization, so that when the valve body assembly 10 is inserted into the connecting assembly 6 along the axial direction of the valve device, the second sealing member 4 can be prevented from falling off or being misplaced.

[0056] like Figure 14-17As shown, the outer wall 33 has more than two second communication ports 36, and the communication component 6 includes a first flow channel 61, a second flow channel 62 and a mounting cavity 63. After the valve device and the communication component 6 are installed, at least part of the valve body component 10 is located in the mounting cavity 63, the first flow channel 61 is connected to one of the second communication ports 36, and the second flow channel 62 is connected to another of the second communication ports 36. Along the radial direction of the valve body component 10, the second sealing member 4 is located between the wall forming the mounting cavity 63 and the outer wall 33, the wall forming the mounting cavity 63 abuts the second sealing member 4, and the outer wall 33 abuts the second sealing member 4, thereby forming a seal. When the valve core 7 rotates to a preset position, the first conduction channel 71 can connect the first flow channel 61 and the second flow channel 62. In this embodiment, the communication component 6 includes a first flow channel 61, a second flow channel 62, a third flow channel 64, and a fourth flow channel (not shown in the figure), which are respectively connected to the four first communication ports 35.

[0057] like Fig.18 , Fig.19 As shown, in another embodiment of the integrated component, the integrated component includes a connecting component 6 and a valve core component 20, the connecting component 6 has a housing chamber 301, at least part of the valve core component 20 is located in the housing chamber 301, the valve core component 20 includes a valve core 7 and a first sealing member 5, the valve core 7 includes an outer peripheral portion 74, the valve core 7 has a first conducting channel 71, and the first conducting channel 71 has one or more openings 70 in the outer peripheral portion 74. The integrated component includes a first sealing member 5, the first sealing member 5 is fixedly connected to the outer peripheral portion 74, the first sealing member 5 has one or more through holes 53, and at least one opening 70 is connected to one of the through holes 53. When installing the valve core component 20, the valve core component 20 can be directly inserted into the housing chamber 301 along the axial direction, which is convenient for assembly, and compared with the previous embodiment, the valve body component 10 is reduced, the structure is simple, and the radial dimension of the housing chamber 301 can be smaller, thereby saving the space of the connecting component 6. In this embodiment, the structure of the valve core assembly 20 is the same or similar to that of the valve core assembly 20 in the previous embodiment, and the structure of the connecting assembly 6 is the same or similar to that of the connecting assembly 6 in the previous embodiment. The wall forming the accommodating chamber 301 includes an inner wall 31, the inner wall 31 faces the outer peripheral portion 74 of the valve core 7, along the radial direction of the valve core 7, at least part of the first sealing member 5 is located between the inner wall 31 and the outer peripheral portion 74 of the valve core 7, the inner wall 31 abuts against the first sealing member 5, and the outer peripheral portion 74 of the valve core 7 abuts against the first sealing member 5, and the connecting assembly 6 has a first flow channel 61, and the opening 70 can be connected to the first flow channel 61. Fig.19The black arrow in shows the direction of installation of the valve core assembly 20. The integrated assembly also includes a drive assembly 8, a first valve body 1 and a third seal 67. The third seal 67 surrounds the first valve body 1 along the circumference of the first valve body 1. The third seal 67 is limitedly connected to the first valve body 1. Along the radial direction of the first valve body 1, at least part of the third seal 67 is located between the inner side wall 31 and the first valve body 1. The first valve body 1 abuts against the third seal 67, and the inner side wall 31 abuts against the first valve body 1. The third seal 67 can isolate the accommodating chamber 301 from the external fluid. The drive assembly 8 is fixedly connected to the first valve body 1. When assembling the integrated assembly, the valve core assembly 20 can be first installed in the accommodating chamber 301, and then a part of the first valve body 1 can be installed in the accommodating chamber 301.

[0058] like Figure 20-22 As shown, in another embodiment of the valve device, the valve core 7 has a first conduction channel 71 and a second conduction channel 72, the first conduction channel 71 has a first opening 711 and a second opening 712 at the outer peripheral portion 74, and the second conduction channel 72 has a third opening 713 and a fourth opening 714 at the outer peripheral portion 74. Along the axial direction of the valve device 300, the first opening 711 and the second opening 712 are staggered, and the third opening 713 and the fourth opening 714 are staggered. The height of the first opening 711 and the third opening 713 is substantially the same, and the height of the second opening 712 and the fourth opening 714 is substantially the same. The valve device 300 has eight first communication ports 35, and along the axial direction of the valve device 300, four of the first communication ports 35 are staggered with the other four first communication ports 35. The eight first communication ports 35 are distributed in two layers along the axial direction, and the valve device 300 can achieve fluid communication between the two layers of first communication ports 35.

[0059] Specifically, the first sealing member 5 includes eight first sealing portions 51 and three second sealing portions 52, wherein the second sealing portions 52 are distributed along the circumference of the valve device 300, and the first sealing portions 51 extend along the axial direction of the valve device 300. Along the axial direction of the valve device 300, the first opening 711 and the third opening 713 are located between two adjacent second sealing portions 52, and the second opening 712 and the fourth opening 714 are located between two adjacent second sealing portions 52. Along the circumference of the valve device 300, four of the first sealing portions 51 are located between the first opening 711 and the third opening 713, and the other four first sealing portions 51 are located between the second opening 712 and the fourth opening 714.

[0060] like Figure 23-Figure 26As shown, in another embodiment of the valve device 400, the valve core 7 has a first conduction channel 71, a second conduction channel 72 and a third conduction channel 73, the first conduction channel 71 has a first opening 711 and a second opening 712 at the outer peripheral portion 74, the second conduction channel 72 has a third opening 713 and a fourth opening 714 at the outer peripheral portion 74, and the third conduction channel 73 has a fifth opening and a sixth opening (not shown in the figure) at the outer peripheral portion 74. Along the axial direction of the valve device 400, each opening is divided into three layers, and each first communication port 35 is also divided into three layers. The height of the first opening 711 is substantially the same as that of the third opening 713, the height of the second opening 712 is substantially the same as that of the fifth opening, and the height of the fourth opening 714 is substantially the same as that of the sixth opening. The structure of the first sealing member 5 is similar to that of the previous embodiment, and will not be repeated here.

[0061] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail in this specification with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified or replaced by equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A valve device, comprising a valve body assembly (10) and a valve core assembly (20), wherein the valve body assembly (10) has a receiving cavity (30), and at least a portion of the valve core assembly (20) is located in the receiving cavity (30); The valve core assembly (20) comprises a valve core (7) and a first sealing member (5), the valve core (7) comprises an outer peripheral portion (74), and the first sealing member (5) is fixedly connected to the outer peripheral portion (74).

2. The valve device according to claim 1, characterized in that The wall forming the accommodating cavity (30) includes an inner wall (31), and the inner wall (31) faces the outer peripheral portion (74) of the valve core (7). Along the radial direction of the valve device, at least part of the first sealing member (5) is located between the inner wall (31) and the outer peripheral portion (74) of the valve core (7), and the inner wall (31) abuts against the first sealing member (5), and the outer peripheral portion (74) of the valve core (7) abuts against the first sealing member (5).

3. The valve device according to claim 2, characterized in that The first sealing member (5) comprises a first component (511) and a second component (512), the first component (511) and the second component (512) are fixedly connected, the first component (511) is an elastic component, the hardness of the second component (512) is greater than the hardness of the first component (511), at least a portion of the first component (511) is fixedly connected to the outer peripheral portion (74), along the radial direction of the valve device, at least a portion of the second component (512) is located between the inner side wall (31) and the first component (511), and the second component (512) and the inner side wall (31) are slidably matched; Alternatively, the first sealing member (5) is an elastic member, and the first sealing member (5) is slidably matched with the inner side wall (31).

4. The valve device according to claim 3, characterized in that The first sealing member (5) is sealed with the outer peripheral portion (74), and the first sealing member (5) is fixed to the outer peripheral portion (74) by vulcanization; or the first sealing member (5) is fixed to the outer peripheral portion (74) by bonding.

5. The valve device according to claim 3 or 4, characterized in that: The material of the second component (512) is fluoroplastic or polyetheretherketone, the second component (512) is in the form of a film or a sheet, and the second component (512) is fixed to the first component (511) by a spraying process; Alternatively, the second component (512) is bonded and fixed to the first component (511); Alternatively, the second component (512) is fixed to the first component (511) by vulcanization.

6. The valve device according to claim 3, characterized in that The second component (512) comprises at least one protrusion (513), the protrusion (513) protrudes outward in the radial direction of the valve device, the top of the protrusion (513) is arranged in contact with the inner wall (31), and the top of the protrusion (513) is in the shape of a convex curved surface.

7. The valve device according to claim 4, characterized in that The peripheral portion (74) comprises an outer peripheral surface portion (741) and a groove (742), wherein the groove (742) is recessed in the outer peripheral surface portion (741), the opening (70) is located in the outer peripheral surface portion (741), a portion of the first sealing member (5) is located in the groove (742), another portion of the first sealing member (5) protrudes from the outer peripheral surface portion (741) in the radial direction of the valve device, and at least a portion of the first sealing member (5) is fixedly connected to a wall forming the groove (742).

8. The valve device according to any one of claims 2 to 7, characterized in that: The valve core (7) has a first conducting channel (71), the first conducting channel (71) has one or more openings (70) in the outer peripheral portion (74), the first sealing member (5) has one or more through holes (53), at least one of the openings (70) is connected to one of the through holes (53), and the inner wall (31) has one or more first communicating ports (35), at least one of the openings (70) can be connected to one of the first communicating ports (35) through the through hole (53).

9. The valve device according to claim 8, characterized in that The first conductive channel (71) has a first opening (711) and a second opening (712) at the outer peripheral portion (74); at least a portion of the first sealing member (5) surrounds the first opening (711) and separates the first opening (711) from other openings by fluid; at least a portion of the first sealing member (5) surrounds the second opening (712) and separates the second opening (712) from other openings by fluid; Alternatively, at least a portion of the first sealing member (5) surrounds the first opening (711) and the second opening (712) and separates the first opening (711) and the second opening (712) from the other openings by fluid.

10. The valve device according to claim 9, characterized in that The valve core (7) has a second conduction channel (72), the first conduction channel (71) has a first opening (711) and a second opening (712) at the outer peripheral portion (74), and the second conduction channel (72) has a third opening (713) and a fourth opening (714) at the outer peripheral portion (74); The first sealing member (5) comprises more than two first sealing portions (51) and two second sealing portions (52), wherein the second sealing portions (52) are distributed along the circumference of the valve device, and the first sealing portion (51) extends along the axial direction of the valve device; The first opening (711), the second opening (712), the third opening (713) and the fourth opening (714) are distributed in sequence along the circumference of the valve device; along the circumference of the valve device, one of the first sealing portions (51) is located between the first opening (711) and the fourth opening (714), and another of the first sealing portions (51) is located between the second opening (712) and the third opening (713); along the axial direction of the valve device, the first opening (711), the second opening (712), the third opening (713) and the fourth opening (714) are all located between two of the second sealing portions (52); one end of the first sealing portion (51) is connected to one of the second sealing portions (52), and the other end of the first sealing portion (51) is connected to another of the second sealing portions (52).

11. The valve device according to claim 10, characterized in that The valve core (7) comprises a main body (75), the peripheral portion (74) is located on the main body (75), and the main body (75) is column-like or cone-like; A first surface is defined, the first surface being perpendicular to the axial direction of the valve device, and along the axial direction of the valve device, a projection of the second sealing portion (52) on the first surface is annular.

12. The valve device according to any one of claims 8 to 11, characterized in that: The valve body assembly (10) comprises an outer side wall (33), and the valve device comprises at least one second sealing member (4), wherein the second sealing member (4) is fixedly connected to the outer side wall (33); the outer side wall (33) has a second communication port (36), wherein the second communication port (36) is connected to the first communication port (35), and at least a portion of the second sealing member (4) surrounds the second communication port (36).

13. An integrated component, comprising a connecting component (6) and a valve core component (20), wherein the connecting component (6) has a receiving cavity (301), and at least a portion of the valve core component (20) is located in the receiving cavity (301); The valve core assembly (20) comprises a valve core (7) and a first sealing member (5), the valve core (7) comprises an outer peripheral portion (74), and the first sealing member (5) is fixedly connected to the outer peripheral portion (74).

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