Valve seat of multi-channel control valve and its control valve

Abstract

A valve seat of a multi-channel control valve and the control valve relate to the technical field of coolant control valves. The valve seat of the multi-channel control valve includes a valve body, a first valve core, and a second valve core; the valve body is provided with a plurality of inlet channels and a plurality of outlet channels; the valve cavity of the valve body includes a valve metering cavity area and a valve regulating cavity area that are not connected to each other; the first valve core has a metering flow channel located in the valve metering cavity area; the second valve core can drive the first valve core to rotate when rotating, so that at least one inlet channel and at least one outlet channel are connected through the metering flow channel; the second valve core rotates in the valve regulating cavity area to be able to change the cross-sectional area of the channel opening of the inlet channel or the channel opening of the outlet channel. The multi-channel control valve includes the valve seat of the multi-channel control valve. The purpose of the present invention is to provide a valve seat of a multi-channel control valve and the control valve to solve, to a certain extent, the technical problems of complex pipelines and high costs caused by a large number of valves in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of coolant control valves, and more particularly, to a valve seat of a multi-channel control valve and its control valve. Background Art

[0002] With the integration of heat exchange systems such as motor cooling, battery heating and cooling, and occupant compartment heating in new energy vehicles, the functional requirements for coolant control valves in heat exchange systems are increasing; for example, the control valves for coolant have evolved from two-way valves to three-way valves and then to four-way valves. The number of control valves on a new energy vehicle may require 3 to 5, including valves with commutation functions and valves with flow regulation functions, resulting in complex pipelines and high costs. Summary of the Invention

[0003] The purpose of the present invention is to provide a valve seat of a multi-channel control valve and its control valve, so as to solve to a certain extent the technical problems of complex pipelines and high costs caused by a large number of valves in the prior art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A valve seat of a multi-channel control valve includes a valve body, a first valve core and a second valve core; a valve cavity is provided inside the valve body; the first valve core and the second valve core are respectively rotatably arranged inside the valve cavity;

[0006] The valve body is provided with a plurality of inlet channels and a plurality of outlet channels; the inlet channels and the outlet channels are respectively communicated with the valve cavity;

[0007] The valve cavity includes a valve metering cavity area and a valve regulating cavity area that are not communicated with each other; the first valve core has a metering flow channel, and the metering flow channel is located in the valve metering cavity area; the second valve core is located in the valve regulating cavity area;

[0008] When the second valve core rotates, it can drive the first valve core to rotate, so that at least one of the inlet channels and at least one of the outlet channels are communicated through the metering flow channel, and the other inlet channels and the other outlet channels are communicated through the valve regulating cavity area;

[0009] The second valve core rotates in the valve regulating cavity area to be able to change the cross-sectional area of the channel opening of the inlet channel or the channel opening of the outlet channel; wherein, the channel opening of the inlet channel is the channel opening where the inlet channel is communicated with the valve regulating cavity area, and the channel opening of the outlet channel is the channel opening where the outlet channel is communicated with the valve regulating cavity area.

[0010] In any of the above technical solutions, optionally, the second valve core includes a second valve core body and a second rotating shaft fixedly connected to the second valve core body;

[0011] The second valve core body includes a pushing portion and a sealing adjustment portion;

[0012] When the second valve core rotates, when the pushing portion abuts against the first valve core, the first valve core rotates with the second valve core. When the pushing portion is spaced from the first valve core, the sealing adjustment portion can completely or partially block the channel opening of the inlet channel or the channel opening of the outlet channel.

[0013] In any of the above technical solutions, optionally, the first valve core includes a first valve core body and a first rotating shaft fixedly connected to the first valve core body;

[0014] The first rotating shaft is collinear with the second rotating shaft;

[0015] The quantitative flow channel is provided in the first valve core body.

[0016] In any of the above technical solutions, optionally, along the axial direction of the second rotating shaft, the first valve core is provided at one end of the second valve core;

[0017] Or, the second valve core is provided inside the first valve core.

[0018] In any of the above technical solutions, optionally, the second valve core is provided inside the first valve core, and the first valve core has an adjustment flow channel that is not communicated with the quantitative flow channel;

[0019] A partition portion is provided inside the first valve core body, and the partition portion divides the inner cavity of the first valve core body into a quantitative flow channel and an adjustment flow channel;

[0020] The adjustment flow channel is located in the valve adjustment cavity area; the second valve core is provided in the adjustment flow channel;

[0021] When the second valve core rotates in the adjustment flow channel, it can change the cross-sectional area of the channel opening of the inlet channel or the channel opening of the outlet channel; wherein, the channel opening of the inlet channel is the channel opening where the inlet channel communicates with the adjustment flow channel, and the channel opening of the outlet channel is the channel opening where the outlet channel communicates with the adjustment flow channel;

[0022] An opening communicating with the quantitative flow channel and an opening communicating with the adjustment flow channel are provided on the first valve core body.

[0023] In any of the above technical solutions, optionally, the valve body is provided with a first channel, a second channel, a third channel, a fourth channel, and a fifth channel; the first channel, the third channel, and the fifth channel are the inlet channels, and the second channel and the fourth channel are the outlet channels;

[0024] Along the axial direction of the second rotating shaft, the third channel is arranged at one end of the second valve core and is communicated with the metering channel;

[0025] When the first valve core rotates with the second valve core, the second channel or the fourth channel can be communicated with the third channel through the metering channel;

[0026] When the second valve core rotates, the sealing and adjusting portion can completely or partially block the channel opening of the first channel or the channel opening of the fifth channel.

[0027] In any of the above technical solutions, optionally, the first rotating shaft is provided with a first rotating shaft hollow portion, one end of the second rotating shaft is inserted into the first rotating shaft hollow portion, and the second rotating shaft is in clearance fit with the first rotating shaft;

[0028] The end of the second rotating shaft away from the first rotating shaft hollow portion extends out of the valve body;

[0029] The end of the second rotating shaft away from the first rotating shaft hollow portion is provided with a spline for connecting a driving mechanism.

[0030] In any of the above technical solutions, optionally, the sealing and adjusting portion is provided with a sealing gasket or a sealing plate;

[0031] A sealing gasket or a sealing plate is arranged on the outer periphery of the first valve core body;

[0032] The first valve core body is cylindrical.

[0033] In any of the above technical solutions, optionally, along the radial direction of the second rotating shaft, the pushing portion is arranged between the sealing and adjusting portion and the second rotating shaft;

[0034] And / or, the surface area of the surface of the sealing and adjusting portion that cooperates with the channel opening of the inlet channel or the channel opening of the outlet channel is larger than the cross-sectional area of the channel opening of the inlet channel or the channel opening of the outlet channel.

[0035] A multi-channel control valve includes the valve seat of the multi-channel control valve.

[0036] The beneficial effects of the present invention mainly lie in:

[0037] The valve seat of the multi-channel control valve provided by the present invention and the control valve include a valve body, a first valve core and a second valve core. When the second valve core rotates, it can drive the first valve core to rotate, so that at least one inlet channel and at least one outlet channel are connected through a quantitative flow channel, and other inlet channels and other outlet channels are connected through a valve regulating cavity area, so that the valve seat of the multi-channel control valve has a commutation function; when the second valve core rotates in the valve regulating cavity area, it can change the cross-sectional area of the channel opening of the inlet channel or the channel opening of the outlet channel, and further change the flow rate of the inlet channel or the outlet channel, so that the valve seat of the multi-channel control valve has a flow rate regulating function. That is, the valve seat of the multi-channel control valve integrates the commutation function and the flow rate regulating function through the first valve core and the second valve core, reduces the number of valves in the pipeline, and reduces the cost generated by using multiple valves in the pipeline.

[0038] To make the above objects, features and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes a detailed description as follows. Brief Description of the Drawings

[0039] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0040] Figure 1 Schematic three-dimensional structure diagram of the valve seat of the multi-channel control valve provided by the embodiment of the present invention;

[0041] Figure 2 Front view of the valve seat of the multi-channel control valve provided by the embodiment of the present invention;

[0042] Figure 3 For Figure 2 Right cross-sectional view of the valve seat of the multi-channel control valve shown;

[0043] Figure 4 For Figure 2 Top cross-sectional view of the valve seat of the multi-channel control valve shown;

[0044] Figure 5 Cross-sectional view of the first valve core rotating and switching to connect the third channel and the fourth channel provided by the embodiment of the present invention;

[0045] Figure 6 Another cross-sectional view of the first valve core rotating and switching to connect the third channel and the fourth channel provided by the embodiment of the present invention;

[0046] Figure 7Cross-sectional view showing the first valve core of the embodiment of the present invention rotating to switch the third channel to communicate with the second channel;

[0047] Figure 8 Another cross-sectional view showing the first valve core of the embodiment of the present invention rotating to switch the third channel to communicate with the second channel;

[0048] Figure 9 Schematic perspective view of the first valve core of the embodiment of the present invention;

[0049] Figure 10 Schematic perspective view of the second valve core of the embodiment of the present invention.

[0050] Reference numerals: 100 - valve body; 110 - first channel; 120 - second channel; 130 - third channel; 140 - fourth channel; 150 - fifth channel; 200 - first valve core; 210 - first valve core body; 220 - first rotating shaft; 230 - metering flow channel; 240 - regulating flow channel; 300 - second valve core; 310 - second valve core body; 311 - pushing portion; 312 - sealing and regulating portion; 320 - second rotating shaft. Detailed Description of the Invention

[0051] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0052] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0053] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0054] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0055] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0056] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0057] The following will describe in detail some embodiments of the present invention with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0058] Embodiment

[0059] Please refer to Figures 1-10 , this embodiment provides a valve seat of a multi-channel control valve and its control valve. Figure 1 is a schematic perspective view of the valve seat of the multi-channel control valve provided in this embodiment; Figure 2 is a front view of the valve seat of the multi-channel control valve provided in this embodiment; Figure 3 is a right sectional view of the valve seat of the multi-channel control valve; Figures 4-8 is a top sectional view of the valve seat of the multi-channel control valve, where Figure 5 and Figure 6 are sectional views of the first valve core provided in this embodiment rotating and switching to connect the third channel and the fourth channel; Figure 6 is a sectional view of the second valve core blocking part of the channel opening of the first channel and blocking part of the channel opening of the fifth channel; Figure 7 and Figure 8Cross-sectional view of the first spool provided in this embodiment when it rotates and switches to connect the third channel and the second channel. Figure 8 Cross-sectional view of the second spool blocking part of the orifice of the first channel and part of the orifice of the fifth channel. Figure 9 Schematic three-dimensional structure diagram of the first spool provided in this embodiment. Figure 10 Schematic three-dimensional structure diagram of the second spool provided in this embodiment.

[0060] The valve seat of the multi-channel control valve provided in this embodiment can be used for coolant control in a vehicle heat exchange management system, such as for coolant control in a new energy vehicle heat exchange management system, especially for waterway coolant control in a vehicle heat exchange management system.

[0061] See Figures 1-10 As shown, the valve seat of the multi-channel control valve includes a valve body 100, a first spool 200, and a second spool 300; there is a valve cavity inside the valve body 100; the first spool 200 and the second spool 300 are respectively rotatably arranged inside the valve cavity. Optionally, the material of the valve body 100 is plastic, metal or other materials.

[0062] The valve body 100 is provided with a plurality of inlet channels and a plurality of outlet channels; the inlet channels and the outlet channels are respectively communicated with the valve cavity.

[0063] The valve cavity includes a valve metering cavity area and a valve regulating cavity area that are not communicated with each other; the first spool 200 has a metering flow channel 230, and the metering flow channel 230 is located in the valve metering cavity area; the second spool 300 is located in the valve regulating cavity area.

[0064] When the second spool 300 rotates, it can drive the first spool 200 to rotate, so that at least one inlet channel and at least one outlet channel are communicated through the metering flow channel 230, and other inlet channels and other outlet channels are communicated through the valve regulating cavity area; by rotating the first spool 200, different inlet channels and different outlet channels are communicated through the metering flow channel 230, thereby switching the channels.

[0065] The second spool 300 rotates in the valve regulating cavity area to be able to change the cross-sectional area of the orifice of the inlet channel or the orifice of the outlet channel. At this time, the first spool 200 does not rotate relative to the second spool 300, and the second spool 300 blocks all or part of the inlet channels or outlet channels communicated with the valve regulating cavity area. The orifice of the inlet channel is the orifice where the inlet channel is communicated with the valve regulating cavity area, and the orifice of the outlet channel is the orifice where the outlet channel is communicated with the valve regulating cavity area.

[0066] In this embodiment, the valve seat of the multi-channel control valve includes a valve body 100, a first valve core 200, and a second valve core 300. When the second valve core 300 rotates, it can drive the first valve core 200 to rotate, so that at least one inlet channel and at least one outlet channel are connected through a quantitative flow channel 230, and other inlet channels and other outlet channels are connected through a valve adjustment cavity area, so that the valve seat of the multi-channel control valve has a commutation function; when the second valve core 300 rotates in the valve adjustment cavity area, it can change the cross-sectional area of the channel opening of the inlet channel or the outlet channel, and further change the flow rate of the inlet channel or the outlet channel, so that the valve seat of the multi-channel control valve has a flow rate adjustment function. That is, the valve seat of the multi-channel control valve integrates the commutation function and the flow rate adjustment function through the first valve core 200 and the second valve core 300, reduces the number of valves in the pipeline, and reduces the cost generated by using multiple valves in the pipeline.

[0067] When it is necessary to switch channels, the second valve core 300 drives the first valve core 200 to rotate to switch to the required channel; when the channel switching is completed, the second valve core 300 operates independently to adjust the flow rate of the inlet channel or the outlet channel connected to the valve adjustment cavity area.

[0068] See Figures 1-8 and Figure 10 As shown in

[0069] The second valve core 300 includes a second valve core main body 310 and a second rotating shaft 320 fixedly connected to the second valve core main body 310.

[0070] When the second valve core 300 rotates, when the pushing portion 311 abuts against the first valve core 200, the first valve core 200 rotates with the second valve core 300 to change the connection between different inlet channels and different outlet channels, thereby switching channels.

[0071] When the second valve core 300 rotates, when the pushing portion 311 is spaced from the first valve core 200, that is, when the pushing portion 311 does not contact the first valve core 200, the sealing and adjusting portion 312 can completely or partially block the channel opening of the inlet channel or the channel opening of the outlet channel to adjust the flow rate of the inlet channel or the outlet channel.

[0072] In an alternative solution of this embodiment, the sealing and adjusting portion 312 is provided with a gasket or a sealing plate; to improve the sealing performance between the sealing and adjusting portion 312 and the valve body 100, that is, to improve the sealing performance between the second valve core 300 and the valve body 100. Optionally, the sealing and adjusting portion 312 is made of rubber or silica gel, or other materials.

[0073] See Figures 1-8 and Figure 10As shown, in an alternative solution of this embodiment, along the radial direction of the second rotating shaft 320, the pushing portion 311 is disposed between the sealing and adjusting portion 312 and the second rotating shaft 320; optionally, a gasket or a sealing plate is disposed on a surface of the sealing and adjusting portion 312 away from the pushing portion 311.

[0074] Optionally, the surface area of the surface of the sealing and adjusting portion 312 that cooperates with the port of the inlet passage or the port of the outlet passage is larger than the cross-sectional area of the port of the inlet passage or the port of the outlet passage; so that the sealing and adjusting portion 312 can completely block the port of the inlet passage or the port of the outlet passage.

[0075] See Figures 1-9 As shown, in an alternative solution of this embodiment, the first valve core 200 includes a first valve core main body 210 and a first rotating shaft 220 fixedly connected to the first valve core main body 210.

[0076] The first rotating shaft 220 is collinear with the second rotating shaft 320; so as to facilitate the second valve core 300 to drive the first valve core 200 to rotate.

[0077] A metering flow passage 230 is provided inside the first valve core main body 210.

[0078] In an alternative solution of this embodiment, a gasket or a sealing plate is disposed on the outer periphery of the first valve core main body 210; so as to improve the sealing performance between the first valve core main body 210 and the valve body 100, that is, to improve the sealing performance between the first valve core 200 and the valve body 100. Optionally, the gasket or the sealing plate disposed on the outer periphery of the first valve core main body 210 is made of rubber or silica gel, or other materials.

[0079] In an alternative solution of this embodiment, the first valve core main body 210 is cylindrical, so as to facilitate the rotation of the first valve core 200.

[0080] In an alternative solution of this embodiment, along the axial direction of the second rotating shaft 320, the first valve core 200 is disposed at one end of the second valve core 300; it can be understood that the first valve core 200 is disposed above or below the second valve core 300, that is, the first valve core 200 and the second valve core 300 are disposed up and down.

[0081] In an alternative solution of this embodiment, the second valve core 300 is disposed inside the first valve core 200; that is, the first valve core 200 and the second valve core 300 are disposed outside and inside, as Figures 1-8 shown.

[0082] Optionally, the first valve core 200 has a metering flow passage 230 and an adjusting flow passage 240; the metering flow passage 230 and the adjusting flow passage 240 are not communicated with each other; the metering flow passage 230 of the first valve core 200 is located in the valve metering cavity area, and the adjusting flow passage 240 of the first valve core 200 is located in the valve adjusting cavity area.

[0083] Inside the first spool main body 210, there is a partition portion, which divides the inner cavity of the first spool main body 210 into a metering flow channel 230 and an adjustment flow channel 240.

[0084] The second spool 300 is arranged in the adjustment flow channel 240.

[0085] When the first spool 200 rotates with the second spool 300, at least one inlet channel and at least one outlet channel are connected through the metering flow channel 230, and other inlet channels and other outlet channels are connected through the adjustment flow channel 240, so that different inlet channels are connected to different outlet channels through the metering flow channel 230, thereby switching the channels.

[0086] When the second spool 300 rotates in the adjustment flow channel 240, it can change the cross-sectional area of the channel opening of the inlet channel or the channel opening of the outlet channel. At this time, the first spool 200 does not rotate relative to the second spool 300, and the second spool 300 blocks all or part of the inlet channels or outlet channels communicating with the adjustment flow channel 240. Among them, the channel opening of the inlet channel is the channel opening where the inlet channel communicates with the adjustment flow channel 240, and the channel opening of the outlet channel is the channel opening where the outlet channel communicates with the adjustment flow channel 240.

[0087] The first spool main body 210 is provided with an opening communicating with the metering flow channel 230 and an opening communicating with the adjustment flow channel 240.

[0088] See Figures 1-10 As shown, in an alternative embodiment of the present embodiment, the valve body 100 is provided with a first channel 110, a second channel 120, a third channel 130, a fourth channel 140, and a fifth channel 150; the first channel 110, the third channel 130, and the fifth channel 150 are inlet channels, and the second channel 120 and the fourth channel 140 are outlet channels.

[0089] Along the axial direction of the second rotation shaft 320, the third channel 130 is arranged at one end of the second spool 300 and communicates with the metering flow channel 230; correspondingly, the first spool main body 210 is provided with an opening communicating with the metering flow channel 230, so that the third channel 130 communicates with the metering flow channel 230. When the second spool 300 is arranged inside the first spool 200, the bottom of the first spool main body 210 is provided with an opening communicating with the metering flow channel 230.

[0090] When the first spool 200 rotates with the second spool 300, the second channel 120 or the fourth channel 140 can communicate with the third channel 130 through the metering flow channel 230; to switch the channel communicating with the third channel 130.

[0091] When the second spool 300 rotates, the sealing and adjusting portion 312 can completely or partially block the passage opening of the first passage 110 or the passage opening of the fifth passage 150; wherein, the passage opening of the first passage 110 is the passage opening where the first passage 110 communicates with the valve adjusting cavity area, and the passage opening of the fifth passage 150 is the passage opening where the fifth passage 150 communicates with the valve adjusting cavity area. Specifically, when the second spool 300 rotates and the second passage 120 communicates with the third passage 130, the sealing and adjusting portion 312 can completely or partially block the passage opening of the first passage 110 or the passage opening of the fifth passage 150; when the second spool 300 rotates and the fourth passage 140 communicates with the third passage 130, the sealing and adjusting portion 312 can completely or partially block the passage opening of the first passage 110 or the passage opening of the fifth passage 150. By blocking the passage opening of the first passage 110 or the passage opening of the fifth passage 150 with the sealing and adjusting portion 312, the flow rates of the first passage 110 and the fifth passage 150 flowing into the second passage 120 are adjusted.

[0092] Optionally, the sealing and adjusting portion 312 can completely or partially block the passage opening of the first passage 110, or the sealing and adjusting portion 312 can completely or partially block the passage opening of the fifth passage 150, or the sealing and adjusting portion 312 can partially block the passage opening of the first passage 110 and partially block the passage opening of the fifth passage 150. Figure 6 and Figure 8 As shown, the sealing and adjusting portion 312 partially blocks the passage opening of the first passage 110 and partially blocks the passage opening of the fifth passage 150.

[0093] To more clearly understand the working mode of the valve seat of the multi-channel control valve, the following examples are given:

[0094] Working mode 1: Switch from the mode where the third passage 130 communicates with the second passage 120 to the mode where the third passage 130 communicates with the fourth passage 140.

[0095] Drive the second spool 300 to rotate clockwise, push the first spool 200 to rotate through the pushing portion 311 on the second spool 300. When the third passage 130 and the fourth passage 140 are switched to the required angle, the second spool 300 stops rotating first, and the first spool 200 stops at the required position. Then the second spool 300 rotates counterclockwise, and the coolant flow rates of the first passage 110 and the fifth passage 150 are adjusted by changing the area blocked by the sealing and adjusting portion 312 on the second spool 300 to block the first passage 110 and the fifth passage 150.

[0096] Working mode 2: Switch from the mode where the third passage 130 communicates with the fourth passage 140 to the mode where the third passage 130 communicates with the second passage 120.

[0097] Drive the second valve core 300 to rotate counterclockwise, and push the first valve core 200 to rotate through the pushing part 311 on the second valve core 300. When the third channel 130 and the second channel 120 are switched to the required angle, the second valve core 300 stops rotating first, and the first valve core 200 stops at the required position. Then the second valve core 300 rotates clockwise, and the coolant flow rates of the first channel 110 and the fifth channel 150 are adjusted by changing the area blocked by the sealing and adjusting part 312 on the second valve core 300 for the first channel 110 and the fifth channel 150.

[0098] See Figure 3 As shown, in an alternative solution of this embodiment, the first rotating shaft 220 is provided with a hollow part of the first rotating shaft. One end of the second rotating shaft 320 is inserted into the hollow part of the first rotating shaft to facilitate the coaxial arrangement of the first rotating shaft 220 and the second rotating shaft 320. The second rotating shaft 320 and the first rotating shaft 220 are in clearance fit, so that when the channels do not need to be switched, that is, when adjusting the flow rate, the first valve core 200 does not rotate with the second valve core 300.

[0099] See Figures 1-3 As shown, in an alternative solution of this embodiment, the end of the second rotating shaft 320 away from the hollow part of the first rotating shaft extends out of the valve body 100; so that the second rotating shaft 320 can be connected to a driving mechanism.

[0100] Optionally, the end of the second rotating shaft 320 away from the hollow part of the first rotating shaft is provided with a spline for connecting a driving mechanism. Through the spline, it is convenient for the driving mechanism to drive the second rotating shaft 320 to rotate, and further drive the second valve core 300 to rotate.

[0101] This embodiment also provides a multi-channel control valve, including the valve seat of the multi-channel control valve. This multi-channel control valve integrates the commutation function and the flow rate adjustment function through the first valve core 200 and the second valve core 300 of the valve seat of the multi-channel control valve, reduces the number of valves in the pipeline, and reduces the cost generated by using multiple valves in the pipeline.

[0102] The multi-channel control valve provided in this embodiment includes the valve seat of the above-mentioned multi-channel control valve. The technical features of the valve seat of the multi-channel control valve disclosed above also apply to this multi-channel control valve, and the technical features of the valve seat of the multi-channel control valve disclosed above will not be repeated here. The multi-channel control valve in this embodiment has the advantages of the valve seat of the above-mentioned multi-channel control valve, and the advantages of the valve seat of the multi-channel control valve disclosed above will not be repeated here.

[0103] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A valve seat of a multi-channel control valve, characterized in that, it includes a valve body, a first valve core and a second valve core; a valve cavity is provided inside the valve body; the first valve core and the second valve core are respectively rotatably arranged inside the valve cavity; the valve body is provided with a plurality of inlet channels and a plurality of outlet channels; the inlet channels and the outlet channels are respectively communicated with the valve cavity; the valve cavity includes a valve metering cavity area and a valve regulating cavity area that are not communicated with each other; the second valve core is arranged inside the first valve core; the first valve core has a metering flow channel and a regulating flow channel; the metering flow channel and the regulating flow channel are not communicated with each other; the metering flow channel is located in the valve metering cavity area, and the regulating flow channel is located in the valve regulating cavity area; the first valve core includes a first valve core body and a first rotating shaft fixedly connected to the first valve core body; a partition portion is arranged inside the first valve core body, and the partition portion divides the inner cavity of the first valve core body into the metering flow channel and the regulating flow channel; the second valve core is arranged in the regulating flow channel; when the first valve core rotates with the second valve core, at least one of the inlet channels and at least one of the outlet channels are communicated through the metering flow channel, and the other inlet channels and the other outlet channels are communicated through the regulating flow channel, so that different inlet channels are communicated with different outlet channels through the metering flow channel, thereby switching channels; when the second valve core rotates in the regulating flow channel, it can change the cross-sectional area of the channel opening of the inlet channel or the channel opening of the outlet channel. At this time, the first valve core does not rotate relative to the second valve core, and the second valve core blocks all or part of the inlet channels or outlet channels communicated with the regulating flow channel; wherein, the channel opening of the inlet channel is the channel opening where the inlet channel is communicated with the regulating flow channel, and the channel opening of the outlet channel is the channel opening where the outlet channel is communicated with the regulating flow channel; a sealing gasket or a sealing plate is arranged on the outer periphery of the first valve core body.

2. The valve seat of the multi-channel control valve according to claim 1, characterized in that, the second valve core includes a second valve core body and a second rotating shaft fixedly connected to the second valve core body; the second valve core body includes a pushing portion and a sealing and regulating portion; when the second valve core rotates, when the pushing portion abuts against the first valve core, the first valve core rotates with the second valve core, and when the pushing portion is spaced from the first valve core, the sealing and regulating portion can completely or partially block the channel opening of the inlet channel or the channel opening of the outlet channel.

3. The valve seat of the multi-channel control valve according to claim 2, characterized in that, the first rotating shaft and the second rotating shaft are collinear.

4. The valve seat of the multi-channel control valve according to claim 2, characterized in that, openings communicating with the metering flow channel and openings communicating with the regulating flow channel are arranged on the first valve core body.

5. The valve seat of the multi-channel control valve according to claim 2, characterized in that, The valve body is provided with a first channel, a second channel, a third channel, a fourth channel and a fifth channel; the first channel, the third channel and the fifth channel are the inlet channels, and the second channel and the fourth channel are the outlet channels; Axially along the second rotating shaft, the third channel is arranged at one end of the second valve core and is communicated with the metering flow channel; When the first valve core rotates with the second valve core, the second channel or the fourth channel can be communicated with the third channel through the metering flow channel; When the second valve core rotates, the sealing and adjusting part can completely or partially block the channel opening of the first channel or the channel opening of the fifth channel.

6. The valve seat of the multi-channel control valve according to claim 2, characterized in that, The first rotating shaft is provided with a first rotating shaft hollow part, one end of the second rotating shaft is inserted into the first rotating shaft hollow part, and the second rotating shaft is in clearance fit with the first rotating shaft; One end of the second rotating shaft far away from the first rotating shaft hollow part extends out of the valve body; A spline for connecting a driving mechanism is arranged at one end of the second rotating shaft far away from the first rotating shaft hollow part.

7. The valve seat of the multi-channel control valve according to claim 2, characterized in that, The sealing and adjusting part is provided with a gasket or a sealing plate; The main body of the first valve core is cylindrical.

8. The valve seat of the multi-channel control valve according to claim 2, characterized in that, Radially along the second rotating shaft, the pushing part is arranged between the sealing and adjusting part and the second rotating shaft; The surface area of the surface of the sealing and adjusting part that cooperates with the channel opening of the inlet channel or the channel opening of the outlet channel is larger than the cross-sectional area of the channel opening of the inlet channel or the channel opening of the outlet channel.

9. A multi-channel control valve, characterized in that, It includes the valve seat of the multi-channel control valve according to any one of claims 1-8.

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