CN117386852A - Control valve - Google Patents

Abstract

The invention discloses a control valve, which is provided with a valve cavity, a first communication port group and a second communication port group, wherein the first communication port group comprises at least two first communication ports, the second communication port group comprises at least two second communication ports, the control valve comprises a valve body and a valve core assembly, the valve core assembly comprises a first valve core part and a second valve core part, the control valve is provided with Q working modes, the first communication port group is provided with N first communication relations, in each first communication relation, the first valve core part is used for communicating the at least two first communication ports, the second communication port group is provided with M second communication relations, in each second communication relation, the second valve core part is used for communicating the at least two second communication ports, and Q is more than or equal to M; this allows control of the flow of fluid through multiple flow paths, facilitating a more compact construction.

Description

Control valve

Technical Field

The invention relates to the field of fluid control, in particular to a control valve.

Background

Some systems require multiple control valves to control the flow paths, such as in motor vehicles, and it is generally possible to use multiple control valves to control the flow paths, and how to provide a single control valve to control the flow of fluid in multiple flow paths is convenient for the control valve to be more compact.

Disclosure of Invention

The invention aims to provide a control valve which can control fluid of a plurality of flow paths so as to be more compact in structure.

The embodiment of the invention provides a control valve, which is provided with a valve cavity, a first communication port group and a second communication port group, wherein the control valve comprises a valve body and a valve core assembly, the valve body comprises a side wall part, the side wall part forms at least part of the valve cavity, at least part of the valve core assembly is positioned in the valve cavity, the first communication port group and the second communication port group are distributed along the height direction of the control valve, the first communication port group comprises at least two first communication ports, the second communication port group comprises at least two second communication ports, and at least part of the first communication ports and at least part of the second communication ports are positioned in the side wall part;

the valve core assembly comprises a first valve core part and a second valve core part, and the first valve core part is in transmission connection with the second valve core part;

the control valve is provided with Q working modes, the first communication port group is provided with N first communication relations, in each first communication relation, the first valve core part is used for communicating at least two first communication relations, the second communication port group is provided with M second communication relations, in each second communication relation, the second valve core part is used for communicating at least two second communication relations, and the Q working modes are larger than or equal to the product of the N first communication relations and the M second communication relations.

The embodiment of the invention also provides a control valve, which is provided with a valve cavity, a first communication port group and a second communication port group, wherein the first communication port group and the second communication port group are distributed along the height direction of the control valve, the first communication port comprises a first port, a second port, a third port and a fourth port which are distributed at intervals, and the second communication port comprises a fifth port, a sixth port, a seventh port, an eighth port and a ninth port which are distributed at intervals;

the first communication port group has at least one of the following first communication relationships:

in a first of said first communication relationships, said first port communicates with said second port and said third port communicates with said fourth port; in a second of said first communication relationships, said first port communicates with said third port and said second port communicates with said fourth port;

the second communication port group has at least one of the following second communication relationships;

in the first of the second communication relations, the fifth port and the sixth port communicate, the eighth port and the ninth port communicate, and the seventh port does not communicate with the other second communication ports within the control valve; in a second of the second communication relationships, the eighth port and the sixth port communicate, the fifth port and the ninth port communicate, and the seventh port does not communicate with the other second communication ports within the control valve; in a third of the second communication relationships, the eighth port and the sixth port communicate, the fifth port and the seventh port communicate, and the ninth port does not communicate with the other second communication ports within the control valve; in a fourth of the second communication relationships, the eighth port communicates with the seventh port, the fifth port communicates with the sixth port, and the ninth port does not communicate with the other second communication ports within the control valve.

According to the control valve provided by the embodiment of the invention, the valve core assembly comprises the first valve core part and the second valve core part which are axially arranged along the valve core assembly, and the control valve is provided with the first communication port group and the second communication port group which are axially arranged along the height direction of the control valve, wherein the control valve is provided with Q working modes, the first communication port group is provided with N first communication relations, in each first communication relation, the first valve core part is used for communicating at least two first communication ports, the second communication port group is provided with M second communication relations, in each second communication relation, the second valve core part is used for communicating at least two second communication ports, and the Q working modes are larger than or equal to the product of the N first communication relations and the M second communication relations.

Drawings

FIG. 1 is a schematic diagram of an exploded construction of a control valve provided in one embodiment of the present invention;

FIG. 2 is a schematic perspective view of one of the control valves shown in FIG. 1;

FIG. 3 is a schematic elevational view of the control valve shown in FIG. 2;

FIG. 4 is a schematic cross-sectional view of one of the control valves shown in FIG. 3 taken along the direction A-A;

FIG. 5 is a schematic cross-sectional view of one of the control valves shown in FIG. 3 in the B-B direction;

FIG. 6 is a schematic cross-sectional view of one of the control valves shown in FIG. 3 in the direction C-C;

FIG. 7 is a schematic view in partial cross-section of a control valve shown in FIG. 3;

FIG. 8 is a schematic perspective view of a valve body according to an embodiment of the present invention;

FIG. 9 is a schematic cross-sectional view of a valve body shown in FIG. 8;

FIG. 10 is a schematic perspective view of a valve cartridge assembly according to an embodiment of the present invention;

FIG. 11 is a schematic elevational view of one of the valve cartridge assemblies shown in FIG. 10;

FIG. 12 is a schematic cross-sectional view of one of the valve cartridge assemblies shown in FIG. 11 in the direction D-D;

FIG. 13 is a schematic cross-sectional structural view of one of the valve cartridge assemblies shown in FIG. 11 in the E-E direction;

FIG. 14 is a schematic cross-sectional view of one of the valve cartridge assemblies shown in FIG. 11 in the F-F direction;

FIG. 15 is a schematic cross-sectional view of one of the valve cartridge assemblies shown in FIG. 11 in the G-G direction;

FIG. 16 is a schematic view of a seal provided by an embodiment of the present invention;

17a, 17b and 17c are schematic structural views of one of the control valves shown in FIG. 3 in a first mode of operation;

FIGS. 18a, 18b and 18c are schematic structural views of one of the control valves shown in FIG. 3 in a second mode of operation;

FIGS. 19a, 19b and 19c are schematic structural views of one of the control valves shown in FIG. 3 in a third mode of operation;

FIGS. 20a, 20b and 20c are schematic structural views of one of the control valves shown in FIG. 3 in a fourth mode of operation;

FIGS. 21a, 21b and 21c are schematic structural views of one of the control valves shown in FIG. 3 in a fifth mode of operation;

FIGS. 22a, 22b and 22c are schematic structural views of one of the control valves shown in FIG. 3 in a sixth mode of operation;

FIGS. 23a, 23b and 23c are schematic structural views of one of the control valves shown in FIG. 3 in a seventh mode of operation;

24a, 24b and 24c are schematic structural views of one of the control valves shown in FIG. 3 in an eighth mode of operation;

FIG. 25 is an exploded view of a control valve according to another embodiment of the present invention;

FIG. 26 is a schematic view in partial cross-section of the control valve shown in FIG. 25;

FIG. 27 is a schematic perspective view of the first valve core shown in FIG. 25;

Fig. 28 is a schematic perspective view of the second spool shown in fig. 25.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described hereinafter, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings and specific embodiments. Relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, and do not necessarily require or imply any such actual relationship or order between the elements.

The embodiment of the invention provides a control valve which can be used for a vehicle thermal management system, particularly a cooling liquid circulation system and can perform the functions of conducting and switching a flow path of the thermal management system.

As shown in fig. 1 to 10, an embodiment of the present invention provides a control valve 1, the control valve 1 has a valve chamber 101 and at least two communication port groups, the at least two communication port groups are arranged in a height direction of the control valve 1, each communication port group includes at least two communication ports 102, the control valve 1 includes a valve body 10 and a valve spool assembly 20, the valve body 10 includes a side wall portion 11, a bottom cap portion 13 and a top cap portion 14, the bottom cap portion 13 and the top cap portion 14 are each sealingly connected with the side wall portion 11, the side wall portion 11 forms at least part of a wall portion of the valve chamber 101, the bottom cap portion 13 and the top cap portion 14 are located on both sides of the side wall portion 11 in the height direction, one of the bottom cap portion 13 and the top cap portion 14 is integrally formed with the side wall portion 11, the other is weldable with the side wall portion 11, and at least part of the communication ports 102 is located on the side wall portion 11. The valve core assembly 20 includes at least two valve core portions arranged along an axial direction of the valve core assembly 20, the number of the valve core portions is the same as that of the communication port groups, and one valve core portion can communicate at least two communication ports in the corresponding communication port groups.

To achieve the action of the valve core assembly 20, in some embodiments, the control valve 1 may further include a driving assembly 40, at least part of the driving assembly 40 is located at one side of the height direction of the valve body 10, the driving assembly 40 includes a driving member, which may be a motor or a combination of the motor and a gear assembly, and the rotation of the output shaft of the motor drives the valve core assembly 20 to rotate, so that the valve core portion communicates with the corresponding at least two communication ports. Herein, the height direction of the control valve 1 and the height direction of the valve body 10 are parallel to the axial direction of the spool assembly 20.

When the control valve 1 is applied to a thermal management system, in order to facilitate connection of the control valve 1 with other components, as shown in fig. 1, the valve ports of the control valve 1 may be located on the same mounting surface, and fluid may enter or leave the control valve 1 through the valve ports, where the control valve 1 may further include a gasket 50, and the gasket 50 may be sandwiched between the mounting surface and the other components to seal the control valve. In other embodiments, the ports of the control valve 1 may be arranged in the peripheral direction of the valve body, for example, at least a part of the ports may be arranged in the peripheral direction of the side wall portion.

Referring further to fig. 1 to 10, in some embodiments, the at least two communication port groups include a first communication port group G1 and a second communication port group G2, and the first communication port group G1 and the second communication port group G2 are arranged along the height direction of the control valve 1. Along the height direction of the control valve 1, the first communication port group G1 is closer to the driving assembly 40 than the second communication port group G2, each of the first communication port group G1 and the second communication port group G2 includes at least two communication ports 102, the communication ports 102 included in the first communication port group G1 are defined as first communication ports G11, the communication ports 102 included in the second communication port group G2 are defined as second communication ports G21, at least a part of the first communication ports G11 and at least a part of the second communication ports G21 are located in the side wall portion 11, at least a part of the valve core assembly 20 is located in the valve cavity 101, wherein the first communication ports G11 and the second communication ports G21 are isolated from each other, i.e., within the range of the control valve 1, the first communication ports G11 and the second communication ports G21 are not communicated.

The valve core portion of the valve core assembly 20 comprises a first valve core portion 21 and a second valve core portion 22, the first valve core portion 21 and the second valve core portion 22 are in transmission connection, the first valve core portion 21 and the second valve core portion 22 are arranged along the axial direction of the valve core assembly 20, the axial direction of the valve core assembly 20 is parallel to the height direction of the control valve 1, the first valve core portion 21 corresponds to the position of the first communication port group G1, the conduction cavity of the first valve core portion 21 is convenient to conduct at least two first communication ports G11, the second valve core portion 22 corresponds to the position of the second communication port group G2, and the conduction cavity of the second valve core portion 22 is convenient to conduct at least two second communication ports F21. The two parts are in transmission connection, which means that power can be transmitted between the two parts, so that one part can drive the other part to rotate, the two parts can be in an integral structure or in a split structure, specifically, the two parts can be in contact, for example, the two parts can be integrally formed or welded or in interference fit or engaged in a tooth-shaped structure, or the two parts can also realize power transmission through other structural parts, for example, the two parts can be connected through a gear assembly. In other embodiments, the control valve 1 may further include a third communication port group, and the valve core assembly 20 may further include a third valve core portion, where the third valve core portion corresponds to a position of the third communication port group, so that the third valve core portion communicates at least two communication ports in the third communication port group, and the number of the communication port groups and the valve core portions is not limited in the present invention.

In the embodiment of the present invention, the control valve 1 has Q working modes, the valve core assembly 20 has Q working positions, so that the communication ports have Q communication relationships, the first communication port group G1 has N first communication relationships, in each first communication relationship, the first valve core 21 communicates at least two first communication ports G11, the second communication port group G2 has M second communication relationships, in each second communication relationship, the second valve core 22 communicates at least two second communication ports G21, wherein Q is equal to or greater than m×n, and Q, M, N are both positive integers. Through the arrangement, the control valve provided by the embodiment of the invention can realize multiple working modes after at least two control valves are combined for use, so that multiple flow paths can be controlled conveniently, and the structure is more convenient and compact. The first communication relationship, the second communication relationship in the embodiment of the present invention will be described with reference to fig. 17a to 24 c.

As shown in connection with fig. 4-6 and 17 a-24 c, in some embodiments, the control valve includes as many channels as there are communication ports 102, with communication ports 102 at one end of the channels and valve ports at the other end of the channels, through which fluid can enter or exit the control valve. In the present embodiment, the first communication port G11 includes a first port P1, a second port P2, a third port P3, and a fourth port P4, wherein the first port P1, the second port P2, the third port P3, and the fourth port P4 are all located at the same height of the side wall portion 11, and accordingly, the control valve 1 includes a first channel TD1, a second channel TD2, a third channel TD3, and a fourth channel TD4, the first port P1 is located in the first channel TD1, the second port P2 is located in the second channel TD2, the third port P3 is located in the third channel TD3, and the fourth port P4 is located in the fourth channel TD4. Specifically, during rotation of the spool assembly 20, as shown in fig. 17a, 20a, in the first communication relationship, the conduction chamber of the first valve core 21 communicates the first port P1 with the second port P2, and the conduction chamber third port P3 of the first valve core 21 communicates with the fourth port P4; as shown in fig. 18a, 19a, in the second first communication relationship, the conduction chamber of the first valve core portion 21 communicates the first port P1 with the third port P3, and the conduction chamber of the first valve core portion 21 communicates the second port P2 with the fourth port P4, and the first communication port group G1 at this time has two first communication relationships, that is, m=2.

Further, in some embodiments, the second communication port G21 includes a fifth port P5, a sixth port P6, a seventh port P7, an eighth port P8, and a ninth port P9, and accordingly, the control valve 1 further includes a fifth passage TD5, a sixth passage TD6, a seventh passage TD7, an eighth passage TD8, and a ninth passage TD9, the fifth port P5 being located in the fifth passage TD5, the sixth port P6 being located in the sixth passage TD6, the seventh port P7 being located in the seventh passage TD7, the eighth port P8 being located in the eighth passage TD8, the ninth port P9 being located in the ninth passage TD9, wherein the seventh port P7 and the ninth port P9 are located at another height of the side wall portion, and the fifth port P5 and the eighth port P8 are located at yet another height of the side wall portion. Specifically, during rotation of the spool assembly 20, specifically, in any one of the first type of first communication relationship and the second type of first communication relationship, the second communication port group G2 has at least one of the following second communication relationships:

as shown in fig. 17b and 17c, fig. 18b and 18c, in the first second communication relationship, the conduction chamber of the second valve core portion 22 communicates the fifth port P5 and the sixth port P6, and communicates the eighth port P8 and the ninth port P9, and the seventh port P7 is not communicated with the other second communication port G21 in the control valve 1. As shown in fig. 19b and 19c, fig. 20b and 20c, in the second communication relationship, the conduction chamber of the second valve core portion 22 communicates the eighth port P8 and the sixth port P6, and communicates the fifth port P5 and the ninth port P9, and the seventh port P7 is not communicated with the other second communication port G21 in the control valve 1. As shown in fig. 21b and 21c, fig. 22b and 22c, in the third second communication relationship, the conduction chamber of the second valve core portion 22 communicates the eighth port P8 and the sixth port P6, and communicates the fifth port P5 and the seventh port P7, and the ninth port P9 is not communicated with the other second communication port G21 in the control valve 1. As shown in fig. 23b and 23c, fig. 24b and 24c, in the fourth second communication relationship, the conduction chamber of the second valve core portion 22 communicates the eighth port P8 and the seventh port P7, the fifth port P5 and the sixth port P6, and the ninth port P9 is not communicated with the other second communication port G21 in the control valve 1. The second communication port group G2 at this time has four second communication relationships, i.e., n=4, and accordingly, each of the first communication relationships cooperates with the four-way second communication relationship, so that the control valve has q= 4*2 =8 operation modes.

To achieve the above-mentioned operation mode of the control valve, in some embodiments, the bottom cover 13 forms part of the wall of the valve cavity 101, the sixth port P6 is located at the bottom cover 13, the valve core assembly 20 includes an inner conducting cavity 225 and an outer conducting cavity 201, the inner conducting cavity 225 is located inside the outer conducting cavity 201 along the radial direction of the valve core assembly 20, the inner conducting cavity 225 communicates with a part of the number of outer conducting cavities 201, the bottom cover 13 is sealingly disposed with the valve core assembly 20, as shown in fig. 7, a part of the bottom cover 13 and a part of the valve core assembly 20 are nested with each other, and a sealing ring is disposed between the bottom cover 13 and the valve core assembly 20, and the sixth port P6 communicates with other second communication ports G21 through the inner conducting cavity 225 and the outer conducting channel 201. With the above arrangement, the sixth port P6 can always communicate with the other one of the second communication ports G21 in any one of the second communication relationships.

Based on this, as shown in fig. 7 to 15, in some embodiments, the first valve core 21 includes a first conduction chamber 211 and a second conduction chamber 212, the first conduction chamber 211 and the second conduction chamber 212 are located at the same height of the valve core assembly 20, and the first conduction chamber 211 and the second conduction chamber 212 are both external conduction chambers and can communicate with at least two second communication ports G21. The second valve core 22 includes a partition cavity 221, a third conducting cavity 222, a fourth conducting cavity 223, and an inner conducting cavity 225, the third conducting cavity 222 and the fourth conducting cavity 223 are both the outer conducting cavity 201, the third conducting cavity 222 is communicated with the inner conducting cavity 225, the partition cavity 221 and the third conducting cavity 222 are axially arranged along the valve core assembly 20, the axial height of the wall part of the fourth conducting cavity 223 is greater than or equal to the sum of the axial height of the wall part of the partition cavity 221 and the axial height of the wall part of the third conducting cavity 222, as shown in fig. 10, the conducting cavity of the valve core assembly 20 includes three layers, the first conducting cavity 211 and the second conducting cavity 212 are located in the first layer, the partition cavity 221 is located in the second layer, the third conducting cavity 222 is located in the third layer, and the fourth conducting cavity 223 penetrates the second layer and the third layer.

Further, in some embodiments, the first valve core 21 and the second valve core 22 are of unitary construction, the first valve core 21 and the second valve core 22 are integrally injection molded, and the body of the first valve core 21 and the body of the second valve core 22 are of cylindrical construction. Specifically, the valve core assembly 20 includes a top portion 241, a bottom portion 242, an intermediate portion 243, a connecting post 244, and a spacer, the top portion 241, the intermediate portion 243, and the bottom portion 242 being sequentially arranged in an axial direction of the valve core assembly 20 and each being connected to the connecting post 244, wherein the first valve core portion 21 includes the top portion 241, a portion of the intermediate portion 243, and the connecting post and spacer between the top portion 241 and the intermediate portion 241, and the second valve core portion 22 includes another portion of the intermediate portion 243, the bottom portion 242, and the connecting post and spacer between the intermediate portion 243 and the bottom portion 241; the center line of the first valve core 21, the center line of the connecting post 24 and the axis of the valve core assembly 20 are coincident, and the front projection of the top 241, the front projection of the bottom 242 and the front projection of the middle 243 are all circular structures along the axial projection of the valve core assembly 20.

The diaphragm includes a first diaphragm 245 and a second diaphragm 246, the first diaphragm 245 being connected between the top portion 241 and the middle portion 243, the first diaphragm 245 extending in a straight line direction in the axial direction of the valve core assembly 20 in fig. 10, in other embodiments, the first diaphragm 245 may be curved or broken line extending, the first diaphragm 245 being located between the middle portion 243 and the top portion 241, and the second diaphragm 246 being located between the middle portion 243 and the bottom portion 242. The second diaphragm 246 includes a longitudinal diaphragm 2461 and a transverse diaphragm 2462, wherein a portion of the longitudinal diaphragm 2461 is connected between the intermediate portion 243 and the bottom portion 242, the transverse diaphragm 2462 is positioned between the intermediate portion 243 and the bottom portion 242, and the transverse diaphragm 2462 extends in a radial direction of the valve core assembly 20. In this embodiment, the transverse diaphragm 2462 may be a semi-circular ring structure, and another portion of the longitudinal diaphragm is connected between the intermediate portion 243 and the transverse diaphragm 2462. The third pass through chamber 222 is located between the transverse partition 2462 and the bottom 242, the fourth pass through chamber 223 is located between the middle portion 243 and the bottom 242, and the partition chamber 221 is located between the middle portion 242 and the transverse partition 2462. Alternatively, the extending direction of the first partition 245 and the extending direction of the part of the longitudinal partition 2461 are parallel, and the arc angle of the cavity wall of the first conducting cavity 211, the arc angle of the cavity wall of the second conducting cavity 212, the arc angle of the cavity wall of the third conducting cavity 222, and the arc angle of the cavity wall of the fourth conducting cavity 223 may be 180 degrees. By the above arrangement, various operation modes of the control valve can be realized by the rotation of the spool assembly 20.

To achieve sealing of the control valve, as shown in fig. 7 and 16, the control valve 1 further includes a sealing member 30, the sealing member 30 being interposed between the spool assembly 20 and the side wall portion 11, the sealing member 30 having a duct 32, the duct 32 being in communication with the corresponding communication port 102. In order to prevent the first communication port G11 and the second communication port G21 from communicating within the range of the control valve, in some embodiments, the seal member 30 includes a first seal portion 31, the first seal portion 31 being located between the first communication port group G1 and the second communication port group G2 in the height direction of the control valve 1, the first seal portion 31 being of a closed annular structure, the intermediate portion 243 being abutted against the first seal portion 31 such that the first communication port G11 and the second communication port G21 are isolated from each other within the control valve 1.

In some embodiments, the first port P1, the second port P2, the third port P3, the fourth port P4, the fifth port P5, the seventh port P7, the eighth port P8, and the ninth port P9 are all located in the side wall portion 11; the first port P1, the second port P2, the third port P3, and the fourth port P4 are located at one height of the side wall portion 11, the seventh port P7 and the ninth port P9 are located at the other height of the side wall portion 11, the eighth port P8 and the fifth port P5 are located at the other height of the side wall portion 11, the seventh port P7 is located between the first port P1 and the eighth port P8 in the height direction of the control valve, and the sixth port P6 is located at the bottom cover portion 13, and by arranging the second communication ports located on the side wall portion in two layers, any one of the second communication relationships can be repeated 2 times, and it is convenient to enable one control valve to realize all operation modes in which at least two control valves are used in combination while satisfying the respective corresponding communication relationships.

In some embodiments, the orthographic projection of the mouth where the first port P1 is located, the orthographic projection of the mouth where the eighth port P8 is located, the orthographic projection of the mouth where the second port P2 is located, the orthographic projection of the mouth where the ninth port P9 is located, the orthographic projection of the mouth where the fourth port P4 is located, the orthographic projection of the mouth where the fifth port P5 is located, the orthographic projection of the mouth where the third port P3 is located, the orthographic projection of the mouth where the seventh port P7 is located, and the orthographic projections of the mouth where the first port P1 is located are sequentially arranged along the circumferential direction of the side wall 11, the orthographic projections along the height direction of the side wall 11, and the angle formed by the center line of the mouths where the two adjacent communication ports 102 are located may be 45 degrees. Referring further to fig. 4 to 6, an included angle between a center line of orthographic projection of the mouth where the first port P1 is located and a center line of orthographic projection of the mouth where the second port P2 is located may be 90 degrees, an included angle between a center line of orthographic projection of the mouth where the third port P3 is located and a center line of orthographic projection of the mouth where the fourth port P4 is located may be 90 degrees, an included angle between a center line of orthographic projection of the mouth where the seventh port P7 is located and a center line of orthographic projection of the mouth where the ninth port P9 is located may be 180 degrees, and an included angle between a center line of orthographic projection of the mouth where the eighth port P8 is located and a center line of orthographic projection of the mouth where the fifth port P5 is located may be 180 degrees. The mouth portion where the communication port 102 is located herein has the communication port 102, and a wall surface defining the communication port 102.

In some embodiments, the heights of the seventh port P7 and the ninth port P9 are located between the heights of the first communication port group G1, the eighth port P8 and the fifth port P5, the second valve core 22 has at least four separating chambers 221 that are separated from each other, and the included angle between the chamber walls of the separating chambers 221 is greater than or equal to the arc angle corresponding to one second communication port G21, and the heights of the separating chambers 221 are the same as the heights of the seventh port P7 and the ninth port P9. Through the above arrangement, the valve core assembly 20 can make the partition 221 fluidly isolate the corresponding second communication port G21 from other second communication ports G21 during rotation.

The following describes the mode of operation of the control valve of embodiments of the present invention, in some embodiments, the control valve has at least one of the following modes of operation:

as shown in fig. 17a, 17b and 17c, the control valve is in the first operation mode, the spool assembly is in the first operation position, the communication ports are in the first communication relationship, specifically, in the first operation mode, the first communication chamber 211 of the first valve core 21 communicates the first port P1 with the second port P2, the second communication chamber 212 communicates the third port P3 with the fourth port P4, the fourth communication chamber 223 of the second valve core 22 communicates the eighth port P8 with the ninth port P9, the third communication chamber 222 and the inner communication chamber 225 communicate the sixth port P6 with the fifth port P5, and the partition 221 is disposed opposite to the seventh port P7 within the control valve range so that the seventh port P7 is not communicated with the other communication ports.

As shown in fig. 18a, 18b and 18c, the control valve is in the second operation mode, the valve core assembly is in the second operation position, the communication ports are in the second communication relationship, specifically, in the first operation mode, the first communication chamber 211 of the first valve core 21 communicates the first port P1 with the third port P3, the second communication chamber 212 communicates the second port P2 with the fourth port P4, the fourth communication chamber 223 of the second valve core 22 communicates the eighth port P8 with the ninth port P9, the third communication chamber 222 and the inner communication chamber 225 communicate the sixth port P6 with the fifth port P5, and the partition 221 is disposed opposite to the seventh port P7 within the control valve range so that the seventh port P7 is not communicated with the other communication ports.

As shown in fig. 19a, 19b and 19c, the control valve is in the third operation mode, the valve core assembly is in the third operation position, the communication ports are in the third communication relationship, specifically, in the first operation mode, the first communication chamber 211 of the first valve core 21 communicates the first port P1 with the third port P3, the second communication chamber 212 communicates the second port P2 with the fourth port P4, the third communication chamber 222 and the inner communication chamber 225 of the second valve core 22 communicate the sixth port P6 with the eighth port P8, the fourth communication chamber 223 communicates the fifth port P5 with the ninth port P9, and the partition 221 is disposed opposite to the seventh port P7 within the control valve range so that the seventh port P7 is not communicated with the other communication ports.

As shown in fig. 20a, 20b and 20c, the control valve is in the fourth operation mode, the spool assembly is in the fourth operation position, the communication ports are in the fourth communication relationship, specifically, in the first operation mode, the first communication chamber 211 of the first valve core 21 communicates the first port P1 with the second port P2, the second communication chamber 212 communicates the third port P3 with the fourth port P4, the third communication chamber 222 and the inner communication chamber 225 of the second valve core 22 communicate the sixth port P6 with the eighth port P8, the fourth communication chamber 223 communicates the fifth port P5 with the ninth port P9, and the partition chamber 221 is disposed opposite to the seventh port P7 within the control valve range such that none of the seventh port P7 communicates with the other communication ports.

As shown in fig. 21a, 21b and 21c, the control valve is in the fifth operation mode, the spool assembly is in the fifth operation position, the communication ports are in the fifth communication relationship, specifically, in the first operation mode, the first communication chamber 211 of the first valve core 21 communicates the first port P1 with the second port P2, the second communication chamber 212 communicates the third port P3 with the fourth port P4, the third communication chamber 222 and the inner communication chamber 225 of the second valve core 22 communicate the eighth port P8 with the sixth port P6, the fourth communication chamber 223 communicates the seventh port P7 with the fifth port P5, and the partition chamber 221 is disposed opposite to the ninth port P9 within the control valve range such that none of the ninth port P9 communicates with the other communication ports.

As shown in fig. 22a, 22b and 22c, the control valve is in the sixth operation mode, the spool assembly is in the sixth operation position, the communication ports are in the sixth communication relationship, specifically, in the first operation mode, the second communication chamber 212 of the first valve core 21 communicates the first port P1 with the third port P3, the first communication chamber 211 communicates the second port P2 with the fourth port P4, the third communication chamber 222 of the second valve core 22 and the internal communication chamber 225 communicate the eighth port P8 with the sixth port P6, the fourth communication chamber 223 communicates the seventh port P7 with the fifth port P5, and the partition chamber 221 is disposed opposite to the ninth port P9 within the control valve range such that none of the ninth port P9 communicates with the other communication ports.

As shown in fig. 23a, 23b and 23c, the control valve is in the seventh operation mode, the spool assembly is in the seventh operation position, the communication ports are in the seventh communication relationship, specifically, in the first operation mode, the second communication chamber 212 of the first valve core 21 communicates the first port P1 with the third port P3, the first communication chamber 211 communicates the second port P2 with the fourth port P4, the fourth communication chamber 223 of the second valve core 22 communicates the eighth port P8 with the seventh port P7, the third communication chamber 222 and the inner communication chamber 225 communicate the sixth port P6 with the fifth port P5, and the partition chamber 221 is disposed opposite to the ninth port P9 within the control valve range so that none of the ninth port P9 communicates with the other communication ports.

As shown in fig. 24a, 24b and 24c, the control valve is in the eighth operation mode, the spool assembly is in the eighth operation position, the communication ports are in the eighth communication relationship, specifically, in the first operation mode, the second communication chamber 212 of the first valve core 21 communicates the first port P1 with the second port P2, the first communication chamber 211 communicates the third port P3 with the fourth port P4, the fourth communication chamber 223 of the second valve core 22 communicates the eighth port P8 with the seventh port P7, the third communication chamber 222 and the inner communication chamber 225 communicate the sixth port P6 with the fifth port P5, and the partition chamber 221 is disposed opposite to the ninth port P9 within the control valve range so that none of the ninth port P9 communicates with the other communication ports.

As shown in fig. 25 to 28, which illustrate schematic structural diagrams of a control valve according to another embodiment of the present invention, the control valve according to the embodiment of the present invention is similar to the control valve shown in fig. 1 to 24c, and has the same operation mode, and each of the control valve includes a first communication port group G1 and a second communication port group G2, the first communication port G11 in the first communication port group G1 is arranged, and the second communication port group G2 is arranged in the same manner as the control valve shown in fig. 1 to 24c, and at least two control valves are different in that: the spool assembly 20 of the control valve shown in fig. 25 to 28 includes a first valve core portion 21 and a second valve core portion 22 which are provided separately, and includes two sealing members which are provided separately, and the control valve further includes a partition plate 12 for achieving fluid isolation between the first communication port G11 and the second communication port G21. The positions of the conducting cavities and the partition plates included in the first valve core portion 21 are similar to those of the conducting cavities included in the first valve core portion shown in fig. 1 to 24c, specifically, the first valve core portion 21 includes a first conducting cavity 211 and a second conducting cavity 212, the second valve core portion 22 includes a third conducting cavity 222, a fourth conducting cavity 223, a partition cavity 221 and an inner conducting cavity 225, the inner conducting cavity 225 is communicated with the third conducting cavity 222, and the structures of the conducting cavities are similar to those of the conducting cavities shown in fig. 1 to 24c, which are not repeated.

Specifically, in some embodiments, the first valve core 21 and the second valve core 22 are provided separately, the valve core assembly 20 further includes a transmission shaft 23, the transmission shaft 23 is disposed in contact with the first valve core 21 and in transmission connection, at least part of the transmission shaft 23 is located outside the valve body 10, at least part of the second valve core 22 is located on a side of the first valve core 21 facing away from the transmission shaft 23, and the first valve core 21 is in transmission connection with the second valve core 22, as shown in fig. 26 to 28, the second valve core 22 includes a connection shaft, the first valve core 21 includes a mating portion, and the connection shaft is embedded in the mating portion to form an interference fit or an engagement structure or key fit, so that the first valve core 21 and the second valve core 22 are in transmission connection. The control valve 1 further comprises a partition plate 12, the partition plate 12 is located in the valve chamber 101, the partition plate 12 is located between at least part of the first valve core 21 and the second valve core 22 in the height direction of the control valve 1, the connecting shaft of the second valve core 22 passes through the partition plate 12 to be in transmission connection with the first valve core 21, the partition plate 12 is in sealing connection with the valve body 10, for example, the partition plate 12 can be welded with the inner wall of the valve body 10, and the partition plate 12 is in sealing connection with the second valve core 22, so that fluid interaction between the second communication port G21 and the first communication port G11 is reduced or prevented. The two sealing members in the embodiment of the present invention may have a non-closed annular structure, and the main structures of the first valve core 21 and the second valve core 22 may have cylindrical structures.

In other embodiments, the control valve 1 may further include a third communication port group, where the third communication port group may be arranged along a height direction of the control valve or along a direction intersecting the height direction of the control valve with the first communication port group G1, and the valve core 20 may include a third valve core, and by rotating the valve core assembly 20, various conductive relationships among the first communication port group G1, the second communication port group G2, and the third communication port group may be achieved, and Q may be greater than m×n.

In summary, according to the control valve 1 provided by the embodiment of the present invention, the valve core assembly 20 includes the first valve core 21 and the second valve core 22 axially arranged along the valve core assembly 20, and the control valve has the first communication port group G1 and the second communication port group G2, where the control valve has Q working modes, the communication ports have Q communication relationships, the first communication port group G1 has N first communication relationships, in each first communication relationship, the first valve core 21 communicates at least two first communication ports G11, the second communication port group G2 has M second communication relationships, and in each second communication relationship, the second valve core 22 communicates at least two second communication ports G21, where Q is greater than or equal to M N, compared with setting at least two independent control valves, the control valve according to the embodiment of the present invention at least can realize setting at least two independent control valves in a plurality of working modes after combined use, so as to control a plurality of flow paths, and make the structure of the control valve more convenient and compact.

It should be noted that: the above embodiments are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, for example, the directional definitions of "front", "rear", "left", "right", "upper", "lower", etc. although the present invention has been described with reference to the above embodiments, it should be understood by those skilled in the art that the present invention may be modified, combined or substituted by equivalent thereto, and all technical solutions and modifications thereof without departing from the spirit and scope of the present invention shall be covered by the claims of the present invention.

Claims (11)

1. A control valve (1), characterized in that the control valve (1) has a valve cavity (101), a first communication port group (G1) and a second communication port group (G2), the control valve (1) comprises a valve body (10) and a valve core assembly (20), the valve body (10) comprises a side wall portion (11), the side wall portion (11) forms at least part of the wall portion of the valve cavity (101), at least part of the valve core assembly (20) is located in the valve cavity (101), the first communication port group (G1) and the second communication port group (G2) are arranged along the height direction of the control valve (1), the first communication port group (G1) comprises at least two first communication ports (G11), the second communication port group (G2) comprises at least two second communication ports (G21), and at least part of the first communication ports (G11) and at least part of the second communication ports (G21) are located in the side wall portion (11);

The valve core assembly (20) comprises a first valve core part (21) and a second valve core part (22), and the first valve core part (21) and the second valve core part (22) are in transmission connection;

the control valve (1) has Q operation modes, the first communication port group (G1) has N kinds of first communication relations, in each of which the first valve core (21) communicates at least two of the first communication ports (G11), the second communication port group (G2) has M kinds of second communication relations, in each of which the second valve core (22) communicates at least two of the second communication ports (G21), wherein Q operation modes are larger than or equal to the product of the N kinds of first communication relations and the M kinds of second communication relations.

2. The control valve (1) according to claim 1, characterized in that the first valve core part (21) and the second valve core part (22) are of an integral structure, the control valve (1) further comprises a sealing member (30), the sealing member (30) comprises a first sealing portion (31), the first sealing portion (31) is located between the first communication port group (G1) and the second communication port group (G2) along the height direction of the control valve (1), the first sealing portion (31) is of a closed annular structure, and the first communication port (G11) and the second communication port (G21) are isolated from each other in the control valve (1).

3. The control valve (1) according to claim 1, characterized in that the first valve core part (21) and the second valve core part (22) are provided separately, the valve core assembly (20) further comprises a drive shaft (23), the drive shaft (23) is provided in contact with the first valve core part (21) and in driving connection, at least part of the drive shaft (23) is located outside the valve body (10), at least part of the second valve core part (22) is located on the side of the first valve core part (21) facing away from the drive shaft (23), and the first valve core part (21) is in driving connection with the second valve core part (22);

the control valve (1) further comprises a separation plate (12), the separation plate (12) is located in the valve cavity (101), the separation plate (12) is located between at least part of the first valve core part (21) and the second valve core part (22) along the height direction of the control valve (1), the separation plate (12) is in sealing connection with the valve body (10), and the separation plate (12) is in sealing arrangement with the second valve core part (22).

4. A control valve (1) according to any one of claims 1 to 3, characterized in that q=8, m=2, n=4.

5. The control valve (1) according to claim 4, wherein the first communication port (G11) comprises a first port (P1), a second port (P2), a third port (P3) and a fourth port (P4) arranged at intervals;

In a first of said first communication relationships, said first port (P1) communicates with said second port (P2), and said third port (P3) communicates with said fourth port (P4);

in a second of the first communication relationships, the first port (P1) communicates with the third port (P3), and the second port (P2) communicates with the fourth port (P4).

6. The control valve (1) according to claim 5, wherein the second communication port (G21) includes fifth port (P5), sixth port (P6), seventh port (P7), eighth port (P8) and ninth port (P9) arranged at intervals, and the second communication port group (G2) has at least one of the following second communication relationships in any one of the first and second first communication relationships:

in the first of the second communication relations, the fifth port (P5) and the sixth port (P6) communicate, the eighth port (P8) and the ninth port (P9) communicate, and the seventh port (P7) is not communicated with the other second communication ports (G21) within the control valve (1);

in a second of the second communication relationships, the eighth port (P8) and the sixth port (P6) communicate, the fifth port (P5) and the ninth port (P9) communicate, and the seventh port (P7) is not communicated with the other second communication ports (G21) within the control valve (1);

In a third of the second communication relationships, the eighth port (P8) and the sixth port (P6) communicate, the fifth port (P5) and the seventh port (P7) communicate, and the ninth port (P9) is not communicated with the other second communication ports (G21) within the control valve (1);

in the fourth communication relationship, the eighth port (P8) and the seventh port (P7) communicate, the fifth port (P5) and the sixth port (P6) communicate, and the ninth port (P9) is not communicated with the other second communication ports (G21) within the control valve (1).

7. The control valve (1) according to claim 6, characterized in that the valve body (10) comprises a bottom cap portion (13), the bottom cap portion (13) being in sealing connection with the side wall portion (11), the bottom cap portion (13) forming part of the wall portion of the valve chamber (101), the sixth port (P6) being located in the bottom cap portion (13);

the valve core assembly (20) comprises an inner conducting cavity (225) and an outer conducting cavity (201), the inner conducting cavity (225) is located on the inner side of the outer conducting cavity (201), the inner conducting cavity (225) is communicated with the outer conducting cavities (201) in part number, the bottom cover part (13) is in sealing arrangement with the valve core assembly (20), and the sixth port (P6) is communicated with other second communication ports (G21) through the inner conducting cavity (225) and the outer conducting cavities (201).

8. The control valve (1) according to claim 7, characterized in that the first port (P1), the second port (P2), the third port (P3), the fourth port (P4), the fifth port (P5), the seventh port (P7), the eighth port (P8) and the ninth port (P9) are all located at the side wall portion (11);

the first port (P1), the second port (P2), the third port (P3), the fourth port (P4) are located at one height of the side wall portion (11), the seventh port (P7) and the ninth port (P9) are located at the other height of the side wall portion (11), and the eighth port (P8) and the fifth port (P5) are located at the other height of the side wall portion (11).

9. The control valve (1) according to claim 7, wherein the orthographic projection of the mouth portion at which the first port (P1) is located, the orthographic projection of the mouth portion at which the eighth port (P8) is located, the orthographic projection of the mouth portion at which the second port (P2) is located, the orthographic projection of the mouth portion at which the ninth port (P9) is located, the orthographic projection of the mouth portion at which the fourth port (P4) is located, the orthographic projection of the mouth portion at which the fifth port (P5) is located, the orthographic projection of the mouth portion at which the third port (P3) is located, the orthographic projection of the mouth portion at which the seventh port (P7) is located are arranged in order along the circumferential direction of the side wall portion (11).

10. The control valve (1) according to claim 9, characterized in that the heights of the seventh port (P7) and the ninth port (P9) are located between the height of the first communication port group (G1) and the heights of the eighth port (P8) and the fifth port (P5);

the second valve core part (22) is provided with at least four separation cavities (221) which are arranged in a mutually separated mode, the included angle between the cavity walls of the separation cavities (221) is larger than or equal to the corresponding arc angle of one second communication port (G21), and the height of the separation cavities (221) is the same as the height of the seventh port (P7) and the height of the ninth port (P9).

11. A control valve (1), characterized in that the control valve (1) has a valve chamber (101), a first communication port group (G1) and a second communication port group (G2), the first communication port group (G1) and the second communication port group (G2) are arranged along the height direction of the control valve (1), the first communication port (G11) comprises a first port (P1), a second port (P2), a third port (P3) and a fourth port (P4) which are arranged at intervals, and the second communication port (G21) comprises a fifth port (P5), a sixth port (P6), a seventh port (P7), an eighth port (P8) and a ninth port (P9) which are arranged at intervals;

the first communication port group (G1) has at least one of the following first communication relationships:

In a first of said first communication relationships, said first port (P1) communicates with said second port (P2), and said third port (P3) communicates with said fourth port (P4); in a second of said first communication relationships, said first port (P1) communicates with said third port (P3), and said second port (P2) communicates with said fourth port (P4);

the second communication port group (G2) has at least one of the following second communication relationships;

in the first of the second communication relations, the fifth port (P5) and the sixth port (P6) communicate, the eighth port (P8) and the ninth port (P9) communicate, and the seventh port (P7) is not communicated with the other second communication ports (G21) within the control valve (1); in a second of the second communication relationships, the eighth port (P8) and the sixth port (P6) communicate, the fifth port (P5) and the ninth port (P9) communicate, and the seventh port (P7) is not communicated with the other second communication ports (G21) within the control valve (1); in a third of the second communication relationships, the eighth port (P8) and the sixth port (P6) communicate, the fifth port (P5) and the seventh port (P7) communicate, and the ninth port (P9) is not communicated with the other second communication ports (G21) within the control valve (1); in the fourth communication relationship, the eighth port (P8) and the seventh port (P7) communicate, the fifth port (P5) and the sixth port (P6) communicate, and the ninth port (P9) is not communicated with the other second communication ports (G21) within the control valve (1).