Multi-way valve and multi-way flow path adjusting device

Abstract

The invention provides a multi-way valve and a multi-way flow path adjusting device, and relates to the technical field of multi-way valves. The multi-way valve comprises a valve body, a first valve element and a second valve element. The valve body is provided with a first circulation opening, a second circulation opening and a third circulation opening. The first valve element is provided with a first flow channel and a second flow channel, and the first flow channel can communicate with one or more of the multiple first circulation openings or do not communicate with the multiple first circulation openings. The second flow channel can be communicated with or not communicated with the third circulation opening. The second valve element is provided with a third flow channel, and the third flow channel is used for communicating or closing the multiple second circulation openings. The first valve element is provided with a first shifting block, the second valve element is provided with a second shifting block, in the process that the first valve element rotates around the axis, the first circulation opening and the third circulation opening can be communicated or closed, the opening degree can be adjusted, and the first shifting block and the second shifting block can be separated or abut against each other. In the abutting state, the first valve element rotates to drive the second valve element to rotate around the axis, so that the second circulation opening is communicated or closed. Multi-channel control is flexible, and the application range is wide.

Description

Technical Field

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

[0002] The thermal management system of a car is designed with multiple circulation loops. According to the thermal management principle of the car body, multiple solenoid valves are needed to switch between various working conditions. In particular, in order to meet the temperature regulation of the passenger compartment, a proportional valve is often required for regulation. In the existing multi-way flow regulation device, the integrated solution adopted by the proportional valve and other multi-way regulating valves still uses the torque of the multi-way valve when performing proportional regulation, which easily puts a great burden on the motor and causes high energy consumption of the motor. Summary of the invention

[0003] The purpose of the present invention is to provide a multi-way valve and a multi-way flow path regulating device, which can integrate the proportional valve and the multi-way valve together, and can also realize the opening proportional regulation under multi-path control. At the same time, it is also beneficial to reduce the burden on the motor, reduce the motor energy consumption, and achieve energy saving.

[0004] In a first aspect, the present invention provides a multi-way valve, comprising:

[0005] The valve body is provided with a plurality of first flow openings, a plurality of second flow openings and a plurality of third flow openings at intervals along the axial direction thereof;

[0006] A first valve core; the first valve core has a first flow channel and a second flow channel in communication, the first flow channel can be in communication with one or more of the first plurality of flow ports, or is not in communication with the first plurality of flow ports; the second flow channel can be in communication with one or more of the third plurality of flow ports, or is not in communication with the third plurality of flow ports;

[0007] a second valve core; the second valve core having a third flow channel, the third flow channel being used to connect at least two of the plurality of second flow ports, or to close the plurality of second flow ports;

[0008] A first shift block is provided on the first valve core, and a second shift block is provided on a side of the second valve core close to the first valve core. During the rotation of the first valve core around the axis, the first flow port can be connected with or closed to the third flow port; and when two adjacent first flow ports are connected with the third flow ports at the same time, the rotation of the first valve core can adjust the opening of the two adjacent first flow ports; or, when two adjacent third flow ports are connected with the first flow ports at the same time, the rotation of the first valve core can adjust the opening of the two adjacent third flow ports; during the rotation of the first valve core around the axis, the first shift block and the second shift block can be separated or abutted; in the state where the first shift block and the second shift block abut, the rotation of the first valve core can drive the second valve core to rotate around the axis to connect or close the second flow port.

[0009] In an optional embodiment, the first valve core and the second valve core are coaxially arranged.

[0010] In an optional embodiment, the valve body is axially opened with a first mounting hole and a second mounting hole, the first valve core is arranged in the first mounting hole, the second valve core is arranged in the second mounting hole, the first valve core and the second valve core are coaxially arranged, and the second valve core is sleeved on the outer periphery of the first valve core.

[0011] In an optional embodiment, the first valve core includes a first section and a second section that are connected and coaxial, the second section protrudes and extends axially from the end face of the first section; the first section is provided with the first flow channel; the second section is provided with the second flow channel; and the second valve core is sleeved on the second section.

[0012] In an optional embodiment, the first block is protrudingly provided on the end surface of the first section close to the second section; the second valve core is protrudingly provided on the end surface of the first section close to the first section; when the first block and the second block are in abutment with each other, the side surface of the first block abuts against the side surface of the second block.

[0013] In an optional embodiment, the first flow port includes a first through hole, a second through hole and a third through hole; the first flow channel is arranged along the radial direction of the first valve core, and the second flow channel is arranged along the axial direction of the first valve core, and the first flow channel can be connected to the first through hole, the second through hole or the third through hole respectively; or, the first flow channel can be connected to the first through hole and the second through hole at the same time; or, the first flow channel can be connected to the second through hole and the third through hole at the same time.

[0014] In an optional embodiment, when the first flow channel is connected to the first through hole and the second through hole at the same time, if the first valve core is rotated in a first direction, the flow cross section of the first through hole increases, and the flow cross section of the second through hole decreases; if the first valve core is rotated in a second direction, the flow cross section of the first through hole decreases, and the flow cross section of the second through hole increases; the first direction and the second direction are opposite;

[0015] When the first flow channel is connected to the second through hole and the third through hole at the same time, if the first valve core is rotated along the first direction, the flow cross-section of the second through hole increases, and the flow cross-section of the third through hole decreases; if the first valve core is rotated along the second direction, the flow cross-section of the second through hole decreases, and the flow cross-section of the third through hole increases.

[0016] In an optional embodiment, the reduced or increased opening of the first through hole is equal to the increased or decreased opening of the second through hole; the reduced or increased opening of the second through hole is equal to the increased or decreased opening of the third through hole.

[0017] In an optional embodiment, the third flow port includes a fourth through hole, which can be connected to the second flow channel, so that the fourth through hole can be connected to any one of the first through hole, the second through hole and the third through hole, or to any two adjacent ones thereof.

[0018] In an optional embodiment, the second flow port includes a fifth through hole and a sixth through hole, and the third flow channel can connect or close the fifth through hole and the sixth through hole.

[0019] In an optional embodiment, the rotation angle range of the first valve core is 0 degrees to N degrees; wherein, within the range of 0 degrees to N1 degrees, the first flow channel is used to adjust the conduction state of the first through hole, the second through hole and the third through hole; the first shift block and the second shift block are separated;

[0020] In the range of N1 to N degrees, the first shift block and the second shift block are in abutment with each other; the third flow channel is used to adjust the conduction state of the fifth through hole and the sixth through hole; wherein N1 is greater than 0 and less than N.

[0021] In an optional embodiment, the valve body is provided with a first mounting hole and a second mounting hole which are coaxial, the first valve core is provided in the first mounting hole, the second valve core is provided in the second mounting hole, and the second valve core is sleeved on the outer periphery of the first valve core;

[0022] The multi-way valve further comprises an end cover connected to the valve body, the end cover is provided with a third mounting hole, and the first valve core has a mounting shaft end, and the mounting shaft end passes through the third mounting hole.

[0023] In an optional embodiment, the first valve core is provided with a first limit surface and a second limit surface, the first limit surface abuts against the end cover, and the second limit surface abuts against the valve body.

[0024] In an optional embodiment, a first positioning member is provided on a side of the second valve core close to the end cover, and / or a second positioning member is provided on an inner circumferential surface of the second valve core facing the first valve core.

[0025] In an optional embodiment, a mounting portion is provided on the valve body, and a projection of the mounting portion on the end cover is located outside the end cover.

[0026] In a second aspect, the present invention provides a multi-way flow path regulating device, comprising an actuator and a multi-way valve as described in any one of the aforementioned embodiments, wherein the actuator is connected to the first valve core, the actuator can drive the first valve core to rotate, and the rotation of the first valve core can drive the second valve core to rotate.

[0027] The beneficial effects of the multi-way valve and the multi-way flow path regulating device provided by the embodiments of the present invention include:

[0028] The multi-way valve provided in the embodiment of the present invention has a plurality of flow ports on the valve body, the first valve core is used to control the conduction and closing of the first flow port and the third flow port, and the second valve core is used to control the conduction and closing of the second flow port. The first valve core can selectively drive the second valve core to rotate during rotation, that is, the first valve core and the second valve core can rotate synchronously or asynchronously. When the first valve core and the second valve core rotate synchronously, one actuator can drive the two valve cores to move. When the first valve core rotates alone, the conduction and closing of the first flow port and the third flow port can be controlled, and when two adjacent first flow ports are connected to the third flow port at the same time, or when two adjacent third flow ports are connected to the first flow port at the same time, the rotation of the first valve core can also realize the opening adjustment of the flow port, and realize proportional adjustment and multi-way control at the same time, and the control method is flexible, and it is conducive to reducing the burden of the actuator, reducing energy consumption, and extending the service life.

[0029] The multi-way flow path regulating device provided in the embodiment of the present invention comprises an actuator and the above-mentioned multi-way valve, wherein one actuator can drive two valve cores to rotate, thereby realizing the control of the multi-way flow path. Moreover, the first valve core can rotate independently, that is, it rotates asynchronously with the second valve core, thereby realizing the conduction and closing of the first flow port and the third flow port, and realizing the proportional adjustment of the opening degree of conduction, and the control method is flexible, which can reduce the burden of the actuator, reduce energy consumption, and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the disassembled structure of a multi-way valve provided in an embodiment of the present invention;

[0032] Figure 2 A partial schematic diagram of the flow ports of a multi-way valve provided in an embodiment of the present invention;

[0033] Figure 3 A schematic cross-sectional structure diagram of a multi-way valve provided in an embodiment of the present invention;

[0034] Figure 4 A schematic structural diagram of a first valve core of a multi-way valve provided in an embodiment of the present invention;

[0035] Figure 5 A schematic structural diagram of a second valve core of a multi-way valve provided in an embodiment of the present invention;

[0036] Figure 6 A schematic diagram of the structure of the first shift block and the second shift block of the multi-way valve provided in an embodiment of the present invention abutting against each other;

[0037] Figure 7 A schematic structural diagram of a first shifting block and a second shifting block of a multi-way valve provided in an embodiment of the present invention being separated;

[0038] Figure 8 A schematic structural diagram of a first flow channel of a first valve core of a multi-way valve provided in an embodiment of the present invention being connected to a first through hole;

[0039] Fig. 9 A schematic structural diagram of a first flow channel of a first valve core of a multi-way valve provided in an embodiment of the present invention being connected to a first through hole and a second through hole at the same time;

[0040] Fig.10 A schematic structural diagram of the communication between the first flow channel of the first valve core and the second through hole of the multi-way valve provided in an embodiment of the present invention;

[0041] Fig.11 A schematic diagram of a structure in which a first flow channel of a first valve core of a multi-way valve provided in an embodiment of the present invention is simultaneously connected with a second through hole and a third through hole;

[0042] Fig.12 A schematic structural diagram of a first flow channel of a first valve core and a third through hole of a multi-way valve provided in an embodiment of the present invention being connected;

[0043] Fig.13 A schematic diagram of a structure in which the third flow channel of the second valve core of the multi-way valve provided in an embodiment of the present invention connects the fifth through hole and the sixth through hole;

[0044] Fig.14 A schematic diagram of a structure in which the third flow channel of the second valve core of the multi-way valve provided in an embodiment of the present invention closes the fifth through hole and the sixth through hole;

[0045] Fig.15 A schematic diagram of the position distribution of the mounting portion and the end cover on the valve body of the multi-way valve provided in an embodiment of the present invention.

[0046] Icons: 1-actuator; 2-end cover; 21-third mounting hole; 22-outer edge; 3-first sealing structure; 4-second valve core; 5-first valve core; 51-first shift block; 53-first flow channel; 52-second flow channel; 54-first limiting surface; 55-second limiting surface; 56-mounting shaft end; 57-first division; 58-second division; 41-second shift block; 42-third flow channel; 45-positioning protrusion; 43-second positioning member; 6-second sealing structure; 7-valve body; 71-first through hole; 72-second through hole; 73-third through hole; 74-fourth through hole; 75-fifth through hole; 76-sixth through hole; 77-limiting groove; 78-mounting part; 8-third sealing structure. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0050] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0051] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0054] A multi-way valve and a multi-way flow path regulating device provided in an embodiment of the present invention can be applied in vehicles, ships, aircraft or engineering machinery equipment.

[0055] Combination Figures 1 to 3 , the multi-way valve includes a valve body 7, a first valve core 5 and a second valve core 4. The valve body 7 is provided with a plurality of first flow ports located at the upper part, a plurality of second flow ports located at the middle part and a plurality of third flow ports located at the lower part. The upper part, the middle part and the lower part here are relative positions along the axial direction of the valve body 7. That is, a plurality of first flow ports, a plurality of second flow ports and a plurality of third flow ports are provided at intervals in the axial direction of the valve body 7. Of course, in order to match the installation position of the valve core, the positions, quantities, etc. of the first flow ports, the second flow ports and the third flow ports can also be flexibly designed and appropriately adjusted. In this embodiment, in the axial direction of the valve body 7, the plurality of first flow ports are located at the same height, the plurality of second flow ports are located at the same height, the plurality of third flow ports are located at the same height, and the three heights are different.

[0056] Combination Figure 4 , the first valve core 5 has a first flow channel 53 and a second flow channel 52 that are connected. The first flow channel 53 can be connected to one or more of the multiple first flow ports, or is not connected to the multiple first flow ports. The second flow channel 52 can be connected to one or more of the multiple third flow ports, or is not connected to the multiple third flow ports. In other words, the first valve core 5 is used to realize the conduction and closing of the first flow port and the third flow port. It is easy to understand that after the first valve core 5 is installed to the valve body 7, the positions of the first flow channel 53 and the first flow port correspond to each other and are relatively located at the upper part of the valve body 7. The positions of the second flow channel 52 and the third flow port correspond to each other and are relatively located at the upper part of the valve body 7. In this embodiment, the first flow channel 53 is arranged along the radial direction of the first valve core 5, and the second flow channel 52 is arranged along the axial direction of the first valve core 5 and extends to the lower part of the valve body 7. According to actual conditions, the number of first flow ports can be one or more, the number of second flow ports can be one or more, and the number of third flow ports can be one or more. The second valve core 4 has a third flow channel 42, and the third flow channel 42 is used to connect at least two of the plurality of second flow ports, or to close the plurality of second flow ports.

[0057] Combination Figure 5 , a first dial block 51 is provided on the first valve core 5, and a second dial block 41 is provided on the side of the second valve core 4 close to the first valve core 5. During the rotation of the first valve core 5 around the axis, the first flow port can be connected or closed with the third flow port; and when two adjacent first flow ports are connected with the third flow port at the same time, the rotation of the first valve core 5 can adjust the opening of the two adjacent first flow ports; or, when two adjacent third flow ports are connected with the first flow port at the same time, the rotation of the first valve core 5 can adjust the opening of the two adjacent third flow ports. During the rotation of the first valve core 5 around the axis, the first dial block 51 and the second dial block 41 can be separated or abutted; when the first dial block 51 and the second dial block 41 are abutted, as Figure 6 The rotation of the first valve core 5 can drive the second valve core 4 to rotate around the axis to connect or close the second flow port. Figure 7 , the first shift block 51 and the second shift block 41 are in a separated state.

[0058] The multi-way valve can realize the control of the conduction and closing of multiple flow paths. The first valve core 5 can move independently or drive the second valve core 4 to move together, so as to realize multiple flow path control methods. In this embodiment, the first flow ports are three, the second flow ports are two, and the third flow port is one for illustration, that is, the valve body 7 is provided with six flow ports, namely, the first through hole 71, the second through hole 72, the third through hole 73, the fourth through hole 74, the fifth through hole 75 and the sixth through hole 76.

[0059] Optionally, the first flow opening includes a first through hole 71, a second through hole 72, and a third through hole 73. The first flow channel 53 can be communicated with the first through hole 71, the second through hole 72, or the third through hole 73, respectively; or, the first flow channel 53 can be communicated with the first through hole 71 and the second through hole 72 at the same time; or, the first flow channel 53 can be communicated with the second through hole 72 and the third through hole 73 at the same time. If the number of the first flow openings is greater, the first flow channel 53 can be communicated with any two adjacent first flow openings at the same time.

[0060] It can be understood that the two adjacent first flow ports are separated by a partition. The flow cross section of the first flow channel 53 is designed according to the cross section of the first flow port and the thickness of the partition. When the flow cross section of the first flow channel 53 is completely aligned with the first through hole 71, the first flow channel 53 is only connected to the first through hole 71, which is recorded as the valve core rotates to position A. Figure 8 When the first valve core 5 rotates until the flow cross section of the first flow channel 53 is completely aligned with the second through hole 72, the first flow channel 53 is only connected to the second through hole 72, which is recorded as the valve core rotating to position B. Fig.10 When the first valve core 5 rotates until the flow cross section of the first flow channel 53 is completely aligned with the third through hole 73, the first flow channel 53 is only connected to the third through hole 73, which is recorded as the valve core rotating to position C. Fig.12 When the first valve core 5 rotates from position A to position B, a portion of the cross section of the first flow channel 53 is connected to the first through hole 71, and a portion of the cross section of the first flow channel 53 is connected to the second through hole 72. In this way, the first flow channel 53 is connected to the first through hole 71 and the second through hole 72 at the same time. Fig. 9 . And in the process of rotating from position A to position B, rotating the valve core can adjust the communication opening of the first flow channel 53 and the first through hole 71, and adjust the communication opening of the first flow channel 53 and the second through hole 72. For example, when the first flow channel 53 is connected with the first through hole 71 and the second through hole 72 at the same time, if the first valve core 5 is rotated in the first direction, the flow cross section of the first through hole 71 increases, and the flow cross section of the second through hole 72 decreases; if the first valve core 5 is rotated in the second direction, the flow cross section of the first through hole 71 decreases, and the flow cross section of the second through hole 72 increases; the first direction and the second direction are opposite. Here, one of the first direction and the second direction can be clockwise and the other can be counterclockwise. Optionally, in the adjustment process, the opening of the first through hole 71 that is reduced or increased is equal to the opening of the second through hole 72 that is increased or decreased. In this way, the opening of the first through hole 71 and the second through hole 72 are adjusted simultaneously, so as to achieve the purpose of proportional adjustment.

[0061] Similarly, when the first flow channel 53 is connected to the second through hole 72 and the third through hole 73 at the same time, Fig.11If the first valve core 5 is rotated in the first direction, the flow cross section of the second through hole 72 increases, and the flow cross section of the third through hole 73 decreases; if the first valve core 5 is rotated in the second direction, the flow cross section of the second through hole 72 decreases, and the flow cross section of the third through hole 73 increases. The decrease or increase in the opening of the second through hole 72 is equal to the increase or decrease in the opening of the third through hole 73.

[0062] In this embodiment, proportional opening adjustment and multi-pass adjustment can be performed simultaneously, and can be driven by only one actuator 1, without additionally increasing the torque and adjustment resistance of the actuator 1, thereby reducing the burden on the actuator 1 and reducing power consumption.

[0063] Optionally, the third flow port includes a fourth through hole 74, which can communicate with the second flow channel 52, so that the fourth through hole 74 can communicate with any one of the first through hole 71, the second through hole 72 and the third through hole 73, or with any two adjacent ones thereof.

[0064] Optionally, the second flow port includes a fifth through hole 75 and a sixth through hole 76, and the third flow channel 42 can connect or close the fifth through hole 75 and the sixth through hole 76. In this embodiment, the third flow channel 42 is opened along the radial direction of the second valve core 4, and the cross section of the third flow channel 42 can be aligned with the fifth through hole 75 and the sixth through hole 76 at the same time, so as to achieve the conduction between the fifth through hole 75 and the second through hole 72. Fig.13 When the second valve core 4 rotates to the point where the third flow channel 42 is not aligned with the fifth through hole 75 or the sixth through hole 76, that is, the fifth through hole 75 and the sixth through hole 76 are not connected, the fifth through hole 75 and the sixth through hole 76 are closed. Fig.14 It should be understood that the third flow channel 42, the fifth through hole 75 and the sixth through hole 76 are located at approximately the same height position, so that when the second valve core 4 rotates along its own axis, the third flow channel 42 can be changed to be in different radial directions, thereby realizing the connection or closing of the fifth through hole 75 and the sixth through hole 76.

[0065] It should be noted that the number of the first flow openings can also be four, five, six or more. The number of the second flow openings can also be three, four, five, six or more, and the number of the third flow openings can also be two, three, four, five, six or more. No specific limitation is made here. The multi-way valve can be designed as a three-way valve, a four-way valve, a five-way valve, a six-way valve, a seven-way valve, an eight-way valve or a nine-way valve according to actual needs.

[0066] Optionally, the first valve core 5 is coaxially arranged with the second valve core 4. The valve body 7 is provided with a first mounting hole and a second mounting hole of a coaxial line, the first valve core 5 is arranged in the first mounting hole, the second valve core 4 is arranged in the second mounting hole, and the second valve core 4 is sleeved on the outer periphery of the first valve core 5. The first valve core 5 includes a first branch 57 and a second branch 58 connected to each other, and the first branch 57 is provided with a first flow channel 53. The second branch 58 is extended and protruded along the axial direction of the first branch 57, and a second flow channel 52 is formed in the second branch 58. The second valve core 4 is sleeved on the second branch 58. The second branch 58 is installed to the bottom of the valve body 7 so that the second flow channel 52 is connected to the third flow port at the lower part of the valve body 7.

[0067] In this embodiment, a first block 51 is protrudingly provided on the end surface of the first section 57 close to the second section 58; a second block 41 is protrudingly provided on the end surface of the second valve core 4 close to the first section 57; when the first block 51 and the second block 41 are in abutting state, the side surface of the first block 51 abuts against the side surface of the second block 41.

[0068] The multi-way valve further includes an end cover 2 connected to the valve body 7, the end cover 2 is provided with a third mounting hole 21, and the first subsection 57 of the first valve core 5 has a mounting shaft end 56, and the mounting shaft end 56 passes through the third mounting hole 21. The mounting shaft end 56 is used to connect with the actuator 1, and the actuator 1 can be an electric motor or a motor to drive the first valve core 5 to rotate. The third mounting hole 21 also serves as a circumferential limit for the first valve core 5.

[0069] Optionally, the first valve core 5 is provided with a first limiting surface 54 and a second limiting surface 55, the first limiting surface 54 abuts against the end cover 2, and the second limiting surface 55 abuts against the valve body 7. The first limiting surface 54 is provided on the end surface of the first subsection 57 away from the second subsection 58, and the second limiting surface 55 is provided on the end surface of the second subsection 58 away from the first subsection 57. The first valve core 5 abuts against the end cover 2 and the valve body 7 through the first limiting surface 54 and the second limiting surface 55, respectively, to achieve axial limitation.

[0070] Optionally, a first positioning member is provided on the side of the second valve core 4 close to the end cover 2, and / or a second positioning member 43 is provided on the inner circumferential surface of the second valve core 4 facing the first valve core 5. In this embodiment, the second valve core 4 is provided with a first positioning member and a second positioning member 43 respectively. The first positioning member is a positioning protrusion 45 provided on the upper end surface of the second valve core 4. The positioning protrusion 45 may be one or more. If there are multiple positioning protrusions 45, the multiple positioning protrusions 45 are evenly distributed along the circumferential direction to achieve axial positioning of the second valve core 4. The upper end surface of the second valve core 4 is the end of the second valve core 4 close to the first subsection 57. The positioning protrusion 45 is located on the outer periphery of the second shift block 41 and will not interfere with the movement of the second shift block 41. The second valve core 4 is circumferentially positioned through the second mounting hole on the valve body 7 and the limiting groove 77 at the bottom of the valve body 7. The second positioning member 43 is provided on the inner circumferential surface of the second valve core 4. The second positioning member 43 is used to contact the second subsection 58 of the first valve core 5 to improve wear resistance and play a role in assisting circumferential positioning.

[0071] The first valve core 5 and the second valve core 4 are limited independently to avoid the problem of excessive clearance inside the product caused by tolerance accumulation.

[0072] Combination Fig.15 Optionally, a mounting portion 78 is provided on the valve body 7, and the projection of the mounting portion 78 on the end cover 2 is located outside the end cover 2. That is, the mounting portion 78 is provided outside the outer edge 22 of the end cover 2, and the mounting portion 78 is used to install the actuator 1. In this way, the actuator 1 can be directly installed on the valve body 7, and the installation of the actuator 1 will not affect the installation space of the first valve core 5 and the second valve core 4, nor will it interfere with the first valve core 5, which is conducive to improving the coaxiality of the first valve core 5 and the second valve core 4, and thus improving the coaxiality of the entire multi-way valve product.

[0073] The working principle of the multi-way valve provided in this embodiment is as follows:

[0074] Optionally, the rotation angle range of the first valve core 5 is 0 to N degrees; wherein, within the range of 0 to N1 degrees, the first flow channel 53 is used to adjust the conduction state of the first through hole 71, the second through hole 72 and the third through hole 73; the first dial block 51 and the second dial block 41 are separated; at this time, it is in the working adjustment area of ​​the first valve core 5. Within the range of N1 to N degrees, the first dial block 51 and the second dial block 41 are abutted; the third flow channel 42 is used to adjust the conduction state of the fifth through hole 75 and the sixth through hole 76; wherein, N1 is greater than 0 and less than N. At this time, it is in the working adjustment area of ​​the second valve core 4.

[0075] Combination Figures 7 to 15 , an example of a working mode of the multi-way valve is: the fifth through hole 75 is connected to the sixth through hole 76; the first through hole 71 and the second through hole 72 are simultaneously connected to the fourth through hole 74, and the opening of the first through hole 71 and the second through hole 72 needs to be adjusted simultaneously. Its control method is:

[0076] The actuator 1 first drives the first valve core 5 to rotate until the first selector block 51 abuts against the second selector block 41. The first valve core 5 continues to rotate, and the first selector block 51 pushes the second selector block 41 to realize the rotation of the second valve core 4. When the second valve core 4 rotates until the third flow channel 42 is connected with the fifth through hole 75 and the sixth through hole 76 respectively, the first valve core 5 stops rotating, and the second valve core 4 remains at this position. At this time, the second valve core 4 is connected with the fifth through hole 75 and the sixth through hole 76. The actuator 1 drives the first valve core 5 to rotate in the opposite direction, and the first selector block 51 and the second selector block 41 are separated. At this time, the first valve core 5 rotates alone, and the second valve core 4 does not move. When the first valve core 5 rotates until the first flow channel 53 is connected with the first through hole 71 and the second through hole 72 respectively, it stops rotating. At this time, the first valve core 5 realizes that the fourth through hole 74 is connected with the first through hole 71 and the second through hole 72 respectively. The first valve core 5 rotates slightly at this position to adjust the opening of the first through hole 71 and the second through hole 72, thereby achieving proportional adjustment. This adjustment method in this embodiment does not need to increase the adjustment resistance of the actuator 1 when performing proportional opening adjustment. Compared with the prior art, when solving multi-pass adjustment with proportional opening adjustment, the adjustment resistance is smaller, which can reduce motor power consumption, save energy, and extend the service life of the motor.

[0077] Similarly, when adjusting other working modes, a similar control method can also be used. First, the first valve core 5 pushes the second shift block 41 to move through the first shift block 51, so that the second valve core 4 remains in the required working position, and then the first valve core 5 rotates in the opposite direction and returns to the working adjustment area of ​​the first valve core 5 to achieve the conduction or closing of the third flow port and the first flow port, and when two adjacent first flow ports are connected at the same time, proportional adjustment of the opening can also be achieved.

[0078] Optionally, the multi-way valve also includes a first sealing structure 3 arranged between the end cover 2 and the first valve core 5, a second sealing structure 6 arranged between the valve body 7 and the second valve core 4, and a third sealing structure 8 at the flow port set on the valve body 7, so as to improve the sealing performance of the multi-way valve.

[0079] The embodiment of the present invention further provides a multi-way flow path regulating device, comprising an actuator 1 and a multi-way valve of any one of the aforementioned embodiments, wherein the actuator 1 is connected to the first valve core 5. It is possible to achieve that one actuator 1 drives two valve cores to move asynchronously, that is, the actuator 1 can drive the first valve core 5 to rotate alone, or drive the first valve core 5 to rotate and the first valve core 5 drives the second valve core 4 to rotate together, thereby achieving flow path conduction under various different working conditions, with flexible application scenarios and convenient control.

[0080] In summary, the multi-way valve and multi-way flow path regulating device provided by the embodiments of the present invention have the following beneficial effects, including:

[0081] The multi-way valve provided in the embodiment of the present invention has a plurality of flow ports on the valve body 7, the first valve core 5 is used to control the conduction and closing of the first flow port and the third flow port, and the second valve core 4 is used to control the conduction and closing of the second flow port. The first valve core 5 can selectively drive the second valve core 4 to rotate during rotation, that is, the first valve core 5 and the second valve core 4 can rotate synchronously or asynchronously. When the first valve core 5 and the second valve core 4 rotate synchronously, one actuator 1 can drive the two valve cores to move. When the first valve core 5 rotates alone, the conduction and closing of the first flow port and the third flow port can be controlled, and when two adjacent first flow ports are connected to the third flow port at the same time, or when two adjacent third flow ports are connected to the first flow port at the same time, the rotation of the first valve core 5 can also realize the opening adjustment of the flow port, and realize proportional adjustment and multi-way control at the same time, and the control method is flexible, and it is conducive to reducing the burden of the actuator 1, reducing the adjustment resistance of the actuator 1, reducing energy consumption, and extending the service life.

[0082] The multi-way flow path regulating device provided in the embodiment of the present invention includes an actuator 1 and the above-mentioned multi-way valve. One actuator 1 can drive two valve cores to rotate, thereby realizing the control of the multi-way flow path. In addition, the first valve core 5 can rotate independently, that is, it rotates asynchronously with the second valve core 4, so as to realize the conduction and closing of the first flow port and the third flow port, and the proportional adjustment of the opening degree of conduction can be realized. The control method is flexible, which can reduce the burden of the actuator 1, reduce energy consumption, and extend the service life. The actuator 1 is installed on the valve body 7 and is located outside the outer edge 22 of the end cover 2, which is conducive to improving the coaxiality of the multi-way valve and higher adjustment accuracy.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made should be included in the protection scope of the present invention.

Claims

1. A multi-way valve, characterized in that: include: A valve body (7); the valve body (7) is provided with a plurality of first flow openings, a plurality of second flow openings and a plurality of third flow openings at intervals along its axial direction; A first valve core (5); the first valve core (5) has a first flow channel (53) and a second flow channel (52) that are in communication, the first flow channel (53) being able to communicate with one or more of the first plurality of flow ports, or being disconnected from the first plurality of flow ports; the second flow channel (52) being able to communicate with one or more of the third plurality of flow ports, or being disconnected from the third plurality of flow ports; A second valve core (4); the second valve core (4) has a third flow channel (42), and the third flow channel (42) is used to connect at least two of the plurality of second flow ports, or to close the plurality of second flow ports; The first valve core (5) is provided with a first shifting block (51), and the second valve core (4) is provided with a second shifting block (41) on a side close to the first valve core (5). When the first valve core (5) rotates around an axis, the first flow port can be connected to or closed with the third flow port; and when two adjacent first flow ports are connected to the third flow port at the same time, the rotation of the first valve core (5) can adjust the opening of the two adjacent first flow ports; or when two adjacent third flow ports are connected to the first flow port at the same time, the rotation of the first valve core (5) can adjust the opening of the two adjacent third flow ports; when the first valve core (5) rotates around an axis, the first shifting block (51) and the second shifting block (41) can be separated or abutted; when the first shifting block (51) and the second shifting block (41) are abutted, the rotation of the first valve core (5) can drive the second valve core (4) to rotate around the axis, so as to connect or close the second flow port.

2. The multi-way valve according to claim 1, characterized in that: The valve body (7) is provided with a first mounting hole and a second mounting hole in the axial direction; the first valve core (5) is arranged in the first mounting hole; the second valve core (4) is arranged in the second mounting hole; the first valve core (5) and the second valve core (4) are coaxially arranged; and the second valve core (4) is sleeved on the outer periphery of the first valve core (5).

3. The multi-way valve according to claim 2, characterized in that: The first valve core (5) comprises a first section (57) and a second section (58) which are connected and coaxial, the second section (58) being axially protruding and extending from the end surface of the first section (57); the first section (57) is provided with the first flow channel (53); the second section (58) is provided with the second flow channel (52); and the second valve core (4) is sleeved on the second section (58).

4. The multi-way valve according to claim 3, characterized in that: The first shift block (51) is convexly provided on the end surface of the first sub-section (57) close to the second sub-section (58); the second shift block (41) is convexly provided on the end surface of the second valve core (4) close to the first sub-section (57); when the first shift block (51) and the second shift block (41) are in abutting state, the side surface of the first shift block (51) is in abutting contact with the side surface of the second shift block (41).

5. The multi-way valve according to claim 1, characterized in that: The first flow port comprises a first through hole (71), a second through hole (72) and a third through hole (73); the first flow channel (53) is arranged along the radial direction of the first valve core (5), and the second flow channel (52) is arranged along the axial direction of the first valve core (5); the first flow channel (53) can be communicated with the first through hole (71), the second through hole (72) or the third through hole (73) respectively; or, the first flow channel (53) can be communicated with the first through hole (71) and the second through hole (72) at the same time; or, the first flow channel (53) can be communicated with the second through hole (72) and the third through hole (73) at the same time.

6. The multi-way valve according to claim 5, characterized in that: In a state where the first flow channel (53) is simultaneously connected to the first through hole (71) and the second through hole (72), if the first valve core (5) is rotated in a first direction, the flow cross section of the first through hole (71) increases, and the flow cross section of the second through hole (72) decreases; if the first valve core (5) is rotated in a second direction, the flow cross section of the first through hole (71) decreases, and the flow cross section of the second through hole (72) increases; the first direction and the second direction are opposite; When the first flow channel (53) is connected to the second through hole (72) and the third through hole (73) at the same time, if the first valve core (5) is rotated in the first direction, the flow cross-section of the second through hole (72) increases, and the flow cross-section of the third through hole (73) decreases; if the first valve core (5) is rotated in the second direction, the flow cross-section of the second through hole (72) decreases, and the flow cross-section of the third through hole (73) increases.

7. The multi-way valve according to claim 6, characterized in that: The decrease or increase in the opening degree of the first through hole (71) is equal to the increase or decrease in the opening degree of the second through hole (72); the decrease or increase in the opening degree of the second through hole (72) is equal to the increase or decrease in the opening degree of the third through hole (73).

8. The multi-way valve according to claim 6, characterized in that: The third flow port includes a fourth through hole (74), and the fourth through hole (74) can be connected to the second flow channel (52), so that the fourth through hole (74) can be connected to any one of the first through hole (71), the second through hole (72) and the third through hole (73), or to any two adjacent ones thereof.

9. The multi-way valve according to claim 5, characterized in that: The second flow port includes a fifth through hole (75) and a sixth through hole (76), and the third flow channel (42) is capable of connecting or closing the fifth through hole (75) and the sixth through hole (76).

10. The multi-way valve according to claim 9, characterized in that: The rotation angle range of the first valve core (5) is 0 degrees to N degrees; wherein, within the range of 0 degrees to N1 degrees, the first flow channel (53) is used to adjust the conduction state of the first through hole (71), the second through hole (72) and the third through hole (73); the first shift block (51) and the second shift block (41) are separated; In the range of N1 to N degrees, the first shift block (51) and the second shift block (41) are in abutment with each other; the third flow channel (42) is used to adjust the conduction state of the fifth through hole (75) and the sixth through hole (76); wherein N1 is greater than 0 and less than N.

11. The multi-way valve according to any one of claims 1 to 10, characterized in that: The valve body (7) is provided with a first mounting hole and a second mounting hole which are coaxial, the first valve core (5) is arranged in the first mounting hole, the second valve core (4) is arranged in the second mounting hole, and the second valve core (4) is sleeved on the outer periphery of the first valve core (5); The multi-way valve further comprises an end cover (2) connected to the valve body (7), the end cover (2) being provided with a third mounting hole (21), and the first valve core (5) having a mounting shaft end (56), the mounting shaft end (56) passing through the third mounting hole (21).

12. The multi-way valve according to claim 11, characterized in that: The first valve core (5) is provided with a first limiting surface (54) and a second limiting surface (55); the first limiting surface (54) abuts against the end cover (2), and the second limiting surface (55) abuts against the valve body (7).

13. The multi-way valve according to claim 11, characterized in that: A first positioning member is provided on a side of the second valve core (4) close to the end cover (2), and / or a second positioning member (43) is provided on the inner peripheral surface of the second valve core (4) facing the first valve core (5).

14. The multi-way valve according to claim 11, characterized in that: The valve body (7) is provided with a mounting portion (78), and a projection of the mounting portion (78) on the end cover (2) is located outside the end cover (2).

15. A multi-channel flow path regulating device, characterized in that: The invention comprises an actuator (1) and a multi-way valve according to any one of claims 1 to 14, wherein the actuator (1) is connected to the first valve core (5), the actuator (1) can drive the first valve core (5) to rotate, and the rotation of the first valve core (5) can drive the second valve core (4) to rotate.

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