阅读说明：本技术 一种多通阀 (Multi-way valve ) 是由 林炳荣 许俊波 李贵宾 薛强 戴海江 于 2021-09-27 设计创作，主要内容包括：本发明涉及控制阀技术领域,尤其涉及一种多通阀。用于解决两通比例阀、三通比例阀和四通比例阀需要多个阀芯控制,所占空间较大,控制复杂且成本较高的问题。阀芯是可转动地设置在阀座上,阀座上设置多个阀口组,每个阀口组包括多个阀口,阀芯上设置与阀口组对应的导通结构组,导通结构组还包括沿周向设置的多个导通结构。阀芯转动至不同的转动位置时,实现不同阀口组中的阀口形成不同的导通状态。只需要一个阀芯,就可以实现两通比例阀、三通比例阀和四通比例阀形成不同的导通状态,控制简单、结构紧凑且成本较低。(The invention relates to the technical field of control valves, in particular to a multi-way valve. The valve core control device is used for solving the problems that a two-way proportional valve, a three-way proportional valve and a four-way proportional valve need to be controlled by a plurality of valve cores, the occupied space is large, the control is complex and the cost is high. The valve core is rotationally arranged on the valve seat, a plurality of valve port groups are arranged on the valve seat, each valve port group comprises a plurality of valve ports, a conduction structure group corresponding to the valve port group is arranged on the valve core, and the conduction structure group further comprises a plurality of conduction structures arranged along the circumferential direction. When the valve core rotates to different rotating positions, the valve ports in different valve port groups form different conduction states. The two-way proportional valve, the three-way proportional valve and the four-way proportional valve can form different conduction states only by one valve core, and the two-way proportional valve, the three-way proportional valve and the four-way proportional valve are simple to control, compact in structure and low in cost.)

1. A multi-way valve is characterized by comprising a valve seat and a valve core which is rotatably arranged in the valve seat, wherein the valve core is provided with a plurality of rotating positions, a plurality of valve port groups are arranged on the valve seat, and each valve port group comprises a plurality of valve ports;

the valve core is provided with conduction structure groups corresponding to the valve port groups respectively, and each conduction structure group comprises a plurality of conduction structures arranged along the circumferential direction;

the conduction unit group is constructed in such a way that when the valve core rotates to different rotation positions, different conduction structures in the conduction unit group are matched with corresponding valve port groups, so that the valve ports in the valve port groups form different conduction states.

2. The multi-way valve of claim 1, wherein the plurality of valve port groups comprises a first valve port group, the plurality of valve ports of the first valve port group comprising a first valve port, a second valve port, a third valve port, and a fourth valve port arranged at four corners;

the multiple conduction structure groups comprise a first conduction structure group, the first conduction structure group comprises a first conduction structure and a second conduction structure which are arranged along the circumferential direction of the valve core, the first conduction structure comprises two first grooves which are arranged on the outer circumferential surface of the valve core and are arranged at intervals along the axial direction of the valve core, and the first grooves extend along the circumferential direction of the valve core; the second conduction structure comprises two second grooves which are arranged on the peripheral surface of the valve core and are arranged at intervals along the circumferential direction of the valve core, and the second grooves extend along the axial direction of the valve core;

when the valve core rotates to enable the first conduction structure to be combined with the first valve port, the two first grooves in the first conduction structure respectively communicate the first valve port with the second valve port and communicate the third valve port with the fourth valve port;

when the valve core rotates to enable the second conduction structure to be combined with the first valve port, the two second grooves in the second conduction structure respectively communicate the first valve port with the fourth valve port and communicate the second valve port with the third valve port.

3. The multi-way valve of claim 2, wherein the plurality of port sets comprises a second port set comprising a fifth port and a sixth port spaced apart along an axial direction of the spool;

the plurality of conduction structure groups comprise a second conduction structure group, and the second conduction structure group comprises a third conduction structure and a blocking structure which are arranged along the circumferential direction of the valve core;

the third conduction structure comprises two third grooves which are arranged on the peripheral surface of the valve core and are distributed at intervals along the axial direction of the valve core, and a first channel which is communicated with the bottoms of the two third grooves;

when the valve core rotates to enable the third conduction structure to be combined with the second valve port, two third grooves in the third conduction structure are respectively matched with the fifth valve port and the sixth valve port so as to communicate the fifth valve port with the sixth valve port;

when the valve core rotates to enable the blocking structure to be matched with the second valve port, the blocking structure blocks the fifth valve port and the sixth valve port.

4. The multi-way valve of claim 3, wherein the plurality of port sets comprises a third port set comprising an eighth port, a seventh port, and a ninth port spaced axially along the spool;

the plurality of conduction structure groups comprise a third conduction structure group, the third conduction structure group comprises a fourth conduction structure and a fifth conduction structure which are arranged along the circumferential direction of the valve core,

the fourth conduction structure comprises two fourth grooves which are arranged on the peripheral surface of the valve core and are distributed at intervals along the axial direction of the valve core, and a second channel which is communicated with the bottoms of the two fourth grooves; the fifth conduction structure comprises a fifth groove extending along the axial direction of the valve core;

when the valve core rotates to enable the fourth conduction structure to be combined with the third valve port, two fourth grooves in the fourth conduction structure are respectively matched with the eighth valve port and the seventh valve port so as to communicate the eighth valve port with the ninth valve port;

when the valve core rotates to enable the fifth conduction structure to be combined with the third valve port, the fifth groove in the fifth conduction structure enables the eighth valve port and the seventh valve port to be communicated.

5. The multi-way valve of claim 4, wherein the eighth port and the fifth port are located at the same axial position of the spool, and the eighth port and the fifth port are spaced apart along a circumferential direction of the spool;

the ninth port and the sixth port are located at the same axial position of the valve core, and the ninth port and the sixth port are arranged at intervals along the circumferential direction of the valve core.

6. The multi-way valve of claim 5, wherein the third conduction structure of the second set of conduction structures is common to the fourth conduction structure of the third set of conduction structures.

7. The multi-way valve of claim 5, wherein the seventh port extends between the fifth port and the sixth port in a circumferential direction of the spool.

8. The multi-way valve of claim 5, wherein the first port set and the second port set are spaced apart in an axial direction of the spool.

9. The multi-way valve according to any one of claims 1 to 8, wherein a plurality of said valve port groups are disposed on the same side of said valve seat.

10. A multi-way valve according to any one of claims 1 to 8, wherein a drive means is provided on the valve seat, the drive means being in driving connection with the valve element.

Technical Field

The invention relates to the technical field of control valves, in particular to a multi-way valve.

Background

In order to increase the driving range of the electric vehicle, various modes such as heating the battery by the coolant electric heater, dissipating heat of the battery and the driving system through the radiator, and heating the battery by using waste heat of the driving system need to be realized.

In order to improve the endurance mileage of an electric vehicle, a single proportional valve cannot realize the multiple modes, but a combination of multiple proportional valves such as a two-way proportional valve, a three-way proportional valve and a four-way proportional valve is required to realize the multiple modes.

In the prior art, the two-way proportional valve, the three-way proportional valve and the four-way proportional valve need to be controlled by a plurality of valve cores, so that the occupied space is large, the control is complex and the cost is high.

Disclosure of Invention

In view of the above problems, embodiments of the present invention provide a multi-way valve, which is simple to control, compact in structure, and low in cost.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: the embodiment of the invention provides a multi-way valve, which comprises a valve seat and a valve core, wherein the valve core is rotatably arranged in the valve seat, the valve core is provided with a plurality of rotating positions, a plurality of valve port groups are arranged on the valve seat, and each valve port group comprises a plurality of valve ports; the valve core is provided with conduction structure groups corresponding to the valve port groups respectively, and each conduction structure group comprises a plurality of conduction structures arranged along the circumferential direction; the conduction unit group is constructed in such a way that when the valve core rotates to different rotation positions, different conduction structures in the conduction unit group are matched with corresponding valve port groups, so that the valve ports in the valve port groups form different conduction states.

Compared with the prior art, the multi-way valve provided by the embodiment of the invention has the following advantages:

the valve core is rotationally arranged on the valve seat, a plurality of valve port groups are arranged on the valve seat, each valve port group comprises a plurality of valve ports, a conduction structure group corresponding to the valve port group is arranged on the valve core, and the conduction structure group further comprises a plurality of conduction structures arranged along the circumferential direction. When the valve core rotates to different rotating positions, the valve ports in different valve port groups form different conduction states. Only one valve core is needed, different conduction states of a plurality of valve port groups can be formed, and the valve is simple to control, compact in structure and low in cost.

As an improvement of the multi-way valve of the embodiment of the invention, the plurality of valve port groups include a first valve port group, and the plurality of valve ports of the first valve port group include a first valve port, a second valve port, a third valve port and a fourth valve port which are arranged in four corners; the multiple conduction structure groups comprise a first conduction structure group, the first conduction structure group comprises a first conduction structure and a second conduction structure which are arranged along the circumferential direction of the valve core, the first conduction structure comprises two first grooves which are arranged on the outer circumferential surface of the valve core and are arranged at intervals along the axial direction of the valve core, and the first grooves extend along the circumferential direction of the valve core; the second conduction structure comprises two second grooves which are arranged on the outer peripheral surface of the valve core and are arranged at intervals along the circumferential direction of the valve core, and the second grooves extend along the axial direction of the valve core; when the valve core rotates to enable the first conduction structure to be combined with the first valve port, the two first grooves in the first conduction structure respectively communicate the first valve port with the second valve port and communicate the third valve port with the fourth valve port; when the valve core rotates to enable the second conduction structure to be combined with the first valve port, the two second grooves in the second conduction structure respectively communicate the first valve port with the fourth valve port and communicate the second valve port with the third valve port.

As a further improvement of the multi-way valve of the embodiment of the invention, the plurality of valve port groups include a second valve port group, and the second valve port group includes a fifth valve port and a sixth valve port which are arranged at intervals along the axial direction of the valve core; the plurality of conduction structure groups comprise a second conduction structure group, and the second conduction structure group comprises a third conduction structure and a blocking structure which are arranged along the circumferential direction of the valve core; the third conduction structure comprises two third grooves which are arranged on the peripheral surface of the valve core and are distributed at intervals along the axial direction of the valve core, and a first channel which is communicated with the bottoms of the two third grooves; when the valve core rotates to enable the third conduction structure to be combined with the second valve port, two third grooves in the third conduction structure are respectively matched with the fifth valve port and the sixth valve port so as to communicate the fifth valve port with the sixth valve port; when the valve core rotates to enable the blocking structure to be matched with the second valve port, the blocking structure blocks the fifth valve port and the sixth valve port.

As a further improvement of the multi-way valve according to the embodiment of the invention, the plurality of valve port sets include a third valve port set, and the third valve port set includes an eighth valve port, a seventh valve port and a ninth valve port which are arranged at intervals along the axial direction of the valve core; the multiple conduction structure groups comprise a third conduction structure group, the third conduction structure group comprises a fourth conduction structure and a fifth conduction structure which are arranged along the circumferential direction of the valve core, the fourth conduction structure comprises two fourth grooves which are arranged on the outer circumferential surface of the valve core and are distributed at intervals along the axial direction of the valve core, and a second channel which is communicated with the bottoms of the two fourth grooves; the fifth conduction structure comprises a fifth groove extending along the axial direction of the valve core; when the valve core rotates to enable the fourth conduction structure to be combined with the third valve port, two fourth grooves in the fourth conduction structure are respectively matched with the eighth valve port and the seventh valve port so as to communicate the eighth valve port with the ninth valve port; when the valve core rotates to enable the fifth conduction structure to be combined with the third valve port, the fifth groove in the fifth conduction structure enables the eighth valve port and the seventh valve port to be communicated.

As a further improvement of the multi-way valve according to the embodiment of the invention, the eighth port and the fifth port are located at the same axial position of the valve core, and the eighth port and the fifth port are arranged at intervals along the circumferential direction of the valve core; the ninth port and the sixth port are located at the same axial position of the valve core, and the ninth port and the sixth port are arranged at intervals along the circumferential direction of the valve core.

As a further improvement of the multi-way valve according to the embodiment of the present invention, the third conduction structure in the second conduction structure group and the fourth conduction structure in the third conduction structure group are shared.

As a further improvement of the multi-way valve according to the embodiment of the present invention, the seventh port extends to a position between the fifth port and the sixth port in a circumferential direction of the valve element.

As a further improvement of the multi-way valve according to the embodiment of the invention, the first valve port group and the second valve port group are arranged at intervals along the axial direction of the valve core.

As a further improvement of the multi-way valve of the embodiment of the invention, a plurality of valve port groups are arranged on the same side of the valve seat.

As a further improvement of the multi-way valve in the embodiment of the invention, a driving device is arranged on the valve seat and is in transmission connection with the valve core.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a multi-way valve according to an embodiment of the present invention;

FIG. 2 is a schematic view of an assembly of a valve core and a driving device according to an embodiment of the present invention;

FIG. 3 is a schematic view of a c-shaped structure according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a dual c-shaped structure according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a line-shaped and L-shaped structure in the related art;

FIG. 6 is a schematic flow path diagram of a two-way proportional valve provided by an embodiment of the present invention;

FIG. 7 is a schematic flow diagram of a three-way proportional valve according to an embodiment of the present invention;

FIG. 8 is a schematic flow path diagram of a four-way proportional valve according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an injection mold according to an embodiment of the present invention.

Description of reference numerals:

100: a multi-way valve; 10: a valve core; 11: a first conducting structure; 12: a second conduction structure; 13: a third conducting structure; 14: a fourth conducting structure; 15: a fifth conducting structure; 16: a blocking structure; 20: a valve seat; 21: a first valve port; 22: a second valve port; 23: a third valve port; 24: a fourth valve port; 25: a fifth valve port; 26: a sixth valve port; 27: a seventh valve port; 28: an eighth valve port; 29: a ninth valve port; 30: a motor; 31: a worm; 32: a first turbine; 33: a first gear; 34: a second gear; 35: a third gear; 36: a fourth gear; 37: a fifth gear; 38: a sixth gear; 40: a pipeline; 50: c-shaped structure; 51: a straight line structure; 52: an L-shaped structure; 60: injection molding a mold; 61: a first mold; 62: and a second mold.

Detailed Description

In order to increase the driving range of the electric vehicle, various modes such as heating the battery by the coolant electric heater, dissipating heat of the battery and the driving system through the radiator, and heating the battery by using waste heat of the driving system need to be realized. In order to improve the endurance mileage of an electric vehicle, a single proportional valve cannot realize the multiple modes, but a combination of multiple proportional valves such as a two-way proportional valve, a three-way proportional valve and a four-way proportional valve is required to realize the multiple modes. In the related art, the two-way proportional valve, the three-way proportional valve and the four-way proportional valve need to be controlled by a plurality of valve cores, so that the occupied space is large, the control is complex and the cost is high.

In order to solve the above problems, the present invention provides a multi-way valve, in which a valve core is rotatably disposed on a valve seat, the valve seat is provided with a plurality of valve port groups, each valve port group includes a plurality of valve ports, the valve core is provided with a conduction structure group corresponding to the valve port group, and the conduction structure group further includes a plurality of conduction structures disposed along a circumferential direction. When the valve core rotates to different rotating positions, the valve ports in different valve port groups form different conduction states. Only one valve core is needed, different conduction states of a plurality of valve port groups can be formed, and the valve is simple to control, compact in structure and low in cost.

In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A multi-way valve according to an embodiment of the invention is described below with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a multi-way valve according to an embodiment of the present invention. The multi-way valve 100 comprises a valve seat 20 and a valve core 10 which is rotatably arranged in the valve seat 20, wherein the valve core 10 has a plurality of rotating positions, a plurality of valve port groups are arranged on the valve seat 20, and each valve port group comprises a plurality of valve ports; the valve core 10 is provided with conduction structure groups corresponding to the valve port groups respectively, and each conduction structure group comprises a plurality of conduction structures arranged along the circumferential direction; the conduction unit set is configured such that when the valve core 10 rotates to different rotational positions, different conduction structures in the conduction unit set are matched with corresponding valve port sets, so that the valve ports in the valve port sets form different conduction states.

The valve core 10 is rotatably disposed on the valve seat 20, a plurality of valve port groups are disposed on the valve seat 20, each valve port group includes a plurality of valve ports, a conduction structure group corresponding to the valve port group is disposed on the valve core 10, and the conduction structure group further includes a plurality of conduction structures disposed along the circumferential direction. When the valve core 10 rotates to different rotation positions, different conduction states of the valve ports in different valve port groups are realized. Only one valve core 10 is needed, different conduction states of a plurality of valve port groups can be formed, and the valve is simple to control, compact in structure and low in cost.

In an alternative embodiment, referring to fig. 2, fig. 2 is a schematic assembly diagram of a valve core and a driving device according to an embodiment of the present invention. The plurality of valve port groups include a first valve port group, and the plurality of valve ports of the first valve port group include a first valve port 21, a second valve port 22, a third valve port 23, and a fourth valve port 24 arranged at four corners. The four ports of the first port group are equivalent to a four-way proportional valve, and the first port 21 is communicated with the second port 22, the first port 21 is communicated with the fourth port 24, the second port 22 is communicated with the third port 23, and the third port 23 is communicated with the fourth port 24.

The four valve ports of the first valve port group are arranged in four corners so as to form different conduction states of the first valve port group. The multiple conduction structure groups comprise a first conduction structure group, the first conduction structure group comprises a first conduction structure 11 and a second conduction structure 12 which are arranged along the circumferential direction of the valve core 10, the first conduction structure 11 comprises two first grooves which are arranged on the outer circumferential surface of the valve core 10 and are arranged at intervals along the axial direction of the valve core 10, and the first grooves extend along the circumferential direction of the valve core 10; the second conduction structure 12 includes two second grooves disposed on the outer circumferential surface of the valve core 10 and disposed at intervals along the circumferential direction of the valve core 10, and the second grooves extend along the axial direction of the valve core 10; when the valve core 10 rotates to enable the first conduction structure 11 to be combined with the first valve port, two first grooves in the first conduction structure 11 respectively communicate the first valve port 21 with the second valve port 22 and communicate the third valve port 23 with the fourth valve port 24; when the valve core 10 is rotated to make the second conducting structure 12 combine with the first port, the two second grooves in the second conducting structure 12 respectively communicate the first port 21 with the fourth port 24 and communicate the second port 22 with the third port 23.

The first port group on the valve core 10 is matched with the first conduction structure group on the valve seat 20, so that the first port 21 is communicated with the second port 22, the first port 21 is communicated with the fourth port 24, the second port 22 is communicated with the third port 23, and the third port 23 is communicated with the fourth port 24. Referring to fig. 8, fig. 8 is a schematic flow path diagram of a four-way proportional valve according to an embodiment of the present invention, and the first valve port group is matched with the first conduction structure group, which is equivalent to implementing a function of a four-way proportional valve.

In an alternative embodiment, the plurality of valve port groups include a second valve port group including a fifth valve port 25 and a sixth valve port 26 that are spaced apart in the axial direction of the valve spool 10. The fifth port 25 and the sixth port 26 are communicated, and the fifth port 25 and the sixth port 26 are blocked. The two ports of the second port set are equivalent to a two-way proportional valve.

The plurality of conduction structure groups include a second conduction structure group including a third conduction structure 13 and a blocking structure 16 arranged in the circumferential direction of the spool 10. In order to communicate the fifth port 25 with the sixth port 26, in an alternative embodiment, the third conducting structure 13 includes two third grooves disposed on the outer circumferential surface of the valve core 10 and distributed at intervals in the axial direction of the valve core 10, and a first channel communicating groove bottoms of the two third grooves; when the valve core 10 rotates to make the third conduction structure 13 cooperate with the second port assembly, the two third grooves in the third conduction structure 13 cooperate with the fifth port 25 and the sixth port 26 respectively to communicate the fifth port 25 with the sixth port 26. In order to block both fifth port 25 and sixth port 26, blocking structure 16 blocks fifth port 25 and sixth port 26 when valve spool 10 is rotated such that blocking structure 16 engages the second port assembly.

The second valve port group on the valve core 10 is matched with the second conduction structure group on the valve seat 20, so that the fifth valve port 25 and the sixth valve port 26 can be communicated, and the fifth valve port 25 and the sixth valve port 26 are blocked. Referring to fig. 6, fig. 6 is a schematic flow path diagram of a two-way proportional valve according to an embodiment of the present invention, and two ports of the second port group are equivalent to implement a function of a two-way proportional valve.

It should be noted that the blocking structure 16 may be any structure capable of blocking the fifth port 25 and the sixth port 26. In an alternative embodiment, the blocking structure 16 may be provided on the outer circumferential surface of the valve cartridge 10 as a groove arranged along the circumferential direction of the valve cartridge 10. The blocking structure 16 may be formed by the outer peripheral surface of the valve body 10.

The plurality of port sets includes a third port set including an eighth port 28, a seventh port 27, and a ninth port 29 that are provided at intervals in the axial direction of the spool 10. It is necessary to realize the communication between the eighth port 28 and the seventh port 27, and the communication between the eighth port 28 and the ninth port 29. The three ports of the third port set are equivalent to a three-way proportional valve.

The plurality of conduction structure groups include a third conduction structure group including a fourth conduction structure 14 and a fifth conduction structure 15 arranged in the circumferential direction of the spool 10. In order to realize the communication between the eighth port 28 and the ninth port 29 which are arranged at intervals. In an alternative embodiment, the fourth conducting structure 14 includes two fourth grooves disposed on the outer circumferential surface of the valve core 10 and distributed at intervals in the axial direction of the valve core 10, and a first channel communicating groove bottoms of the two fourth grooves; to achieve communication between the eighth port 28 and the seventh port 27, the fifth communication structure 15 includes a fifth groove extending in the axial direction of the valve spool 10. When the valve core 10 rotates to enable the fourth conduction structure 14 to be combined with the third port, two fourth grooves in the fourth conduction structure 14 are respectively matched with the eighth port 28 and the seventh port 27 to communicate the eighth port 28 with the seventh port 27; when the valve spool 10 is rotated such that the fifth communication structure 15 is engaged with the third port assembly, the fifth groove in the fifth communication structure 15 communicates the eighth port 28 with the ninth port 29.

The third set of ports on the valve element 10 is matched with the third set of conducting structures on the valve seat 20, so that the eighth port 28 and the seventh port 27 can be communicated, and the eighth port 28 and the ninth port 29 can be communicated. Referring to fig. 7, fig. 7 is a schematic flow path diagram of a three-way proportional valve according to an embodiment of the present invention, in which three ports of the third port group are equivalent to a three-way proportional valve.

The first port 21, the second port 22, the third port 23 and the fourth port 24 of the first port group, the fifth port 25, the sixth port 26 and the seventh port 27 of the second port group, and the eighth port 28 and the ninth port 29 of the third port group are collectively arranged on the same side of the valve seat 20, so that the pipeline 40 can be conveniently arranged and the space can be reduced.

The third conduction structure 13 in the second conduction structure group and the fourth conduction structure 14 in the third conduction structure group are used for communicating two valve ports arranged on the valve seat 20 at intervals, and the third conduction structure 13 and the fourth conduction structure 14 can be set to be any structures capable of meeting the above requirements. In an alternative embodiment, the third conducting structure 13 and the fourth conducting structure 14 have the same structure, and the third conducting structure 13 and the fourth conducting structure 14 include two grooves disposed on the outer circumferential surface of the valve core 10 and distributed at intervals in the axial direction of the valve core 10, and a channel communicating groove bottoms of the two grooves.

In an alternative embodiment, the third conducting structure 13 and the fourth conducting structure 14 are one structure, the third conducting structure 13 may be used as the fourth conducting structure 14, the fourth conducting structure 14 may also be used as the third conducting structure 13, and the third conducting structure 13 and the fourth conducting structure 14 may be shared.

In an alternative embodiment, the eighth port 28 and the fifth port 25 are located at the same axial position of the valve spool 10, and the eighth port 28 and the fifth port 25 are spaced apart along the circumferential direction of the valve spool 10; the ninth port 29 and the sixth port 26 are located at the same axial position of the valve spool 10, and the ninth port 29 and the sixth port 26 are arranged at intervals along the circumferential direction of the valve spool 10. Because the third conducting structure 13 and the fourth conducting structure 14 have the same structure, when the valve core 10 is rotated to different predetermined positions, the eighth valve port 28 and the ninth valve port 29 are matched with the fourth conducting structure 14 or matched with the third conducting structure 13; the fifth port 25 and the sixth port 26 are engaged with the third conducting structure 13, and may also be engaged with the fourth conducting structure 14. The third conducting structure 13 and the fourth conducting structure 14 have the same function and composition structure, so the third conducting structure 13 and the fourth conducting structure 14 can be shared, and the valve core 10 has good universality.

The third conducting structure 13 and the fourth conducting structure 14 are used for communicating two grooves which are arranged on the valve core 10 at intervals. Referring to fig. 3, 4 and 5, fig. 3 is a schematic view of a c-shaped structure according to an embodiment of the present invention; FIG. 4 is a schematic diagram of a dual c-shaped structure according to an embodiment of the present invention; fig. 5 is a schematic diagram of a line-shaped and L-shaped structure in the related art. The in-line structure 51 in the related art realizes communication between two connected grooves, and the L-shaped structure 52 realizes communication between grooves arranged at right angles. In an alternative embodiment, the third conducting structure 13 and the fourth conducting structure 14 may be arranged in a c-shaped structure 50, and two ends are used for communicating the two grooves. The blocking structure 16 may be arranged in the middle of the combination of the two c-shaped structures 50. The two c-shaped structures 50 can be used for connecting the fifth port 25 and the sixth port 26, and the eighth port 28 and the ninth port 29, and the middle blocking structure 16 is used for blocking the seventh port 27.

Optionally, the c-shaped structure 50 is formed by an injection molding process, so that the production speed is high, the efficiency is high, and a part with a complex shape is easily formed. Referring to fig. 9, fig. 9 is a schematic structural diagram of an injection mold according to an embodiment of the present invention. The injection mold 60 used includes a first mold 61 and a second mold 62. The first die 61 is a c-shaped annular slide block, and the second die 62 is a straight slide block. During the injection molding process, the first mold 61 is connected to the second mold 62. After the injection molding is completed, when the mold is removed, the first mold 61 is removed along the horizontal line to the side away from the third conducting structure 13, and the second mold 62 is removed by rotating around the circumference.

As shown in fig. 2, the width of the seventh port 27 in the axial direction of the valve spool 10 is narrow, and in order to ensure that the flow area of the seventh port 27 is not reduced, in an alternative embodiment, the seventh port 27 extends between the fifth port 25 and the sixth port 26 along the circumferential direction of the valve spool 10.

A first row of conduction structure group, a second row of conduction structure group, a third row of conduction structure group, a fourth row of conduction structure group, a fifth row of conduction structure group, a sixth row of conduction structure group, a seventh row of conduction structure group, an eighth row of conduction structure group, a ninth row of conduction structure group and a tenth row of conduction structure group are sequentially arranged on the outer peripheral surface of the valve core 10 along the circumferential direction of the valve core; the first row of conducting structure groups are provided with fifth conducting structures 15, blocking structures 16 and first grooves of the first conducting structures 11 at intervals along the axial direction of the valve core 10; the second row of conduction structure groups are provided with three blocking structures 16 and another first groove of the first conduction structure 11 at intervals along the axial direction of the valve core 10; the third row of conduction structure group is provided with fifth conduction structures 15, blocking structures 16 and first grooves of the first conduction structures 11 at intervals along the axial direction of the valve core 10; a third conduction structure 13, a blocking structure 16 and another first groove of the first conduction structure 11 are arranged in the fourth row of conduction structure group at intervals along the axial direction of the valve core 10, and the blocking structure 16 is positioned between the two third grooves of the third conduction structure 13; a fourth conduction structure 14, a blocking structure 16 and a first groove of the first conduction structure 11 are arranged in the fifth row of conduction structure group at intervals along the axial direction of the valve core 10, and the blocking structure 16 is positioned between two fourth grooves of the fourth conduction structure 14; the sixth row of conduction structure groups are provided with three blocking structures 16 and another first groove of the first conduction structure 11 at intervals along the axial direction of the valve core 10; the seventh row of conduction structure groups are provided with fifth conduction structures 15, blocking structures 16 and second conduction structures 12 at intervals along the axial direction of the valve core 10; the eighth row of conduction structure groups are provided with third conduction structures 13, blocking structures 16 and second conduction structures 12 at intervals along the axial direction of the valve core 10, and the blocking structures 16 are positioned between two third grooves of the third conduction structures 13; a ninth row of conduction structure groups are provided with fourth conduction structures 14, a blocking structure 16 and a second conduction structure 12 at intervals along the axial direction of the valve core 10, and the blocking structure 16 is positioned between two fourth grooves of the fourth conduction structure 14; the tenth row of the conduction structure group is provided with three blocking structures 16 and the second conduction structure 12 at intervals along the axial direction of the valve core 10. It should be noted that the seventh column conduction structure group, the eighth column conduction structure group, the ninth column conduction structure group, and the tenth column conduction structure group share one second conduction structure 12.

Only one valve core 10 and one driving device are needed to control the two-way proportional valve, the three-way proportional valve and the four-way proportional valve, and the control is simple, the structure is compact, and the cost is low. The rotation angle of the valve core 10 is adjusted to realize seven different working conditions of the multi-way valve 100.

The first working condition is that the first port 21 is communicated with the second port 22, the third port 23 is communicated with the fourth port 24, the fifth port 25 is communicated with the sixth port 26, the seventh port 27 is communicated with the eighth port 28, and the ninth port 29 is blocked. When the valve core 10 rotates to the first predetermined position, the first port 21 and the second port 22 are engaged with the first groove of the first conduction structure 11, the third port 23 and the fourth port 24 are engaged with another first groove of the first conduction structure 11, the fifth port 25 and the sixth port 26 are engaged with the third conduction structure 13, the seventh port 27 and the eighth port 28 are engaged with the fifth conduction structure 15, and the ninth port 29 is engaged with the blocking structure 16, so as to block the ninth port 29.

The second working condition is that the first port 21 is communicated with the fourth port 24, the second port 22 is communicated with the third port 23, the fifth port 25 is communicated with the sixth port 26, the seventh port 27 is communicated with the eighth port 28, and the ninth port 29 is blocked. When the valve core 10 rotates to the second predetermined position, the first port 21 and the fourth port 24 are engaged with the second groove of the second conduction structure 12, the second port 22 and the third port 23 are engaged with another second groove of the second conduction structure 12, the fifth port 25 and the sixth port 26 are engaged with the third conduction structure 13, the seventh port 27 and the eighth port 28 are engaged with the fifth conduction structure 15, and the ninth port 29 is engaged with the blocking structure 16, so that the ninth port 29 is blocked.

The third working condition is that the first port 21 is communicated with the second port 22, the third port 23 is communicated with the fourth port 24, the fifth port 25 is communicated with the sixth port 26, the eighth port 28 is communicated with the ninth port 29, and the seventh port 27 is blocked. When the valve core 10 rotates to a third preset position, the first port 21 and the second port 22 are matched with the first groove of the first conduction structure 11, the third port 23 and the fourth port 24 are matched with another first groove of the first conduction structure 11, the fifth port 25 and the sixth port 26 are matched with the third conduction structure 13, the eighth port 28 and the ninth port 29 are matched with the fourth conduction structure 14, and the seventh port 27 is matched with the blocking structure 16, so that the seventh port 27 is blocked.

The fourth working condition is that the first port 21 is communicated with the fourth port 24, the second port 22 is communicated with the third port 23, the fifth port 25 is communicated with the sixth port 26, the eighth port 28 is communicated with the ninth port 29, and the seventh port 27 is blocked. When the valve core 10 rotates to a fourth predetermined position, the first port 21 and the fourth port 24 are engaged with the second groove of the second conducting structure 12, the second port 22 and the third port 23 are engaged with another second groove of the second conducting structure 12, the fifth port 25 and the sixth port 26 are engaged with the third conducting structure 13, the eighth port 28 and the ninth port 29 are engaged with the fourth conducting structure 14, and the seventh port 27 is engaged with the blocking structure 16, so that the seventh port 27 is blocked.

The fifth working condition is that the first port 21 is communicated with the second port 22, the third port 23 is communicated with the fourth port 24, the eighth port 28 is communicated with the ninth port 29, the fifth port 25 is blocked, the sixth port 26 is blocked, and the seventh port 27 is blocked. When the valve core 10 rotates to a fifth preset position, the first port 21 and the second port 22 are matched with a first groove of the first conduction structure 11, the third port 23 and the fourth port 24 are matched with another first groove of the first conduction structure 11, the eighth port 28 and the ninth port 29 are matched with the fourth conduction structure 14, and the fifth port 25, the sixth port 26 and the seventh port 27 are matched with the blocking structure 16, so that the fifth port 25, the sixth port 26 and the seventh port 27 are respectively blocked.

The sixth working condition is that the first port 21 is communicated with the second port 22, the third port 23 is communicated with the fourth port 24, the seventh port 27 is communicated with the eighth port 28, and the fifth port 25, the sixth port 26 and the ninth port 29 are blocked. When the valve core 10 rotates to a sixth preset position, the first port 21 and the second port 22 are matched with the first groove of the first conduction structure 11, the third port 23 and the fourth port 24 are communicated with another first groove of the first conduction structure 11, the seventh port 27 and the eighth port 28 are matched with the fifth conduction structure 15, and the fifth port 25, the sixth port 26 and the ninth port 29 are matched with the blocking structure 16, so that the fifth port 25, the sixth port 26 and the ninth port 29 are respectively blocked.

The seventh working condition is that the first port 21 is communicated with the fourth port 24, the second port 22 is communicated with the third port 23, the seventh port 27 is communicated with the eighth port 28, and the fifth port 25, the sixth port 26 and the ninth port 29 are blocked. When the valve core 10 rotates to a seventh preset position, the first port 21 and the fourth port 24 are engaged with the second groove of the second conduction structure 12, the second port 22 and the third port 23 are communicated with another second groove of the second conduction structure 12, the seventh port 27 and the eighth port 28 are engaged with the fifth conduction structure 15, and the fifth port 25, the sixth port 26 and the ninth port 29 are engaged with the blocking structure 16, so as to block the fifth port 25, the sixth port 26 and the ninth port 29 respectively.

In order to realize the rotation of the valve core 10 to different rotation positions, a driving device is arranged on the valve seat 20, and the driving device is in transmission connection with the valve core 10.

The driving device may be configured in any structure that can drive the valve plug 10 to rotate, and in an alternative embodiment, referring to fig. 2, the driving device includes a motor 30 and a gear set in transmission connection with the motor 30, and the gear set is in transmission connection with the valve plug 10. The motor 30 is provided with a worm 31 on the shaft, and the gear set comprises a first gear 33 group and a second gear 34 group. The first gear 33 group includes a first worm gear 32, a first gear 33, a second gear 34, and a third gear 35, which are connected in series in this order on the same central axis. The second group of gears 34 comprises, on the same central axis, a fourth gear 36, a fifth gear 37 and a sixth gear 38, connected in series in succession. The worm 31 on the shaft of the motor 30 is meshed with the first worm wheel 32, the first gear 33 is meshed with the fourth gear 36, the second gear 34 is meshed with the fifth gear 37, and the third gear 35 is meshed with the sixth gear 38. The central axis of the first gear 33 group and the central axis of the second gear 34 group are both parallel to each other and in the vertical direction, and the central axis of the first worm 31 and the central axis of the first worm wheel 32 are perpendicular to each other.

In order to realize the connection between the valve core 10 and the sixth gear 38, optionally, a first connection portion is provided on the valve core 10, and a second connection portion is provided on the sixth gear 38, and the first connection portion and the second connection portion can be detachably connected.

Optionally, the first connecting portion includes a spline shaft disposed on the end surface of the valve core 10, and the second connecting portion includes a spline housing disposed on the sixth gear 38, and the spline shaft and the spline housing form a detachable connection.

In an alternative embodiment, the multi-way valve 100 may be used in a thermal management system coolant circuit of an electric vehicle, providing the electric vehicle with the advantages of light weight and cost savings. Compared with an electric automobile which needs three driving devices to control a four-way valve, a three-way proportional valve and a two-way proportional valve, the electric automobile using the multi-way valve 100 saves 200 yuan per automobile on average, and each automobile can be lightened by 500 g.

The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

In the description of the present specification, references to "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.