CN115654177B - Multi-way valve - Google Patents
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- CN115654177B CN115654177B CN202211670139.8A CN202211670139A CN115654177B CN 115654177 B CN115654177 B CN 115654177B CN 202211670139 A CN202211670139 A CN 202211670139A CN 115654177 B CN115654177 B CN 115654177B
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Abstract
The invention discloses a multi-way valve, and relates to the technical field of valves; the method comprises the following steps: the valve body is sealed at two ends, a valve cavity is arranged in the valve body, a plurality of valve ports are arranged on the side wall of the valve body, and each valve port can be communicated with the valve cavity; the side wall of the valve core is provided with a plurality of diversion concave cavities which can rotate around the axis of the valve core; the sealing gasket is positioned between the inner side wall of the valve body and the outer side wall of the valve core, is used for sealing a gap between the valve core and the valve body, and is provided with a plurality of flow guide ports, and each flow guide port corresponds to each valve port one by one; the valve core rotates to switch the corresponding conditions of the flow guide concave cavity and the valve ports so as to control the opening/closing of the corresponding valve ports and/or adjust the flow ratio of one valve port to the other valve port. The novel multi-way valve has the characteristics of good sealing performance, low leakage rate and small volume, can realize switching of on-off of a flow channel and adjustment of the flow rate proportion of a valve port, and ensures realization of functions of the new energy automobile multi-way valve.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a multi-way valve.
Background
The traditional automobile heat management system usually adopts a three-way valve and a four-way valve, and the sealing principle is as follows: the fitting size of the valve core and the valve shell is accurately controlled, and leakage of a non-communicating pipeline is reduced by means of a small fitting clearance between the valve core and the valve shell. The problems of larger rotating torque of the valve core, over-quick abrasion of the valve core and the like exist. Similarly, in systems such as a thermal management system of a new energy vehicle, it is generally necessary to use a control valve (multi-way valve) having a plurality of passages to control the opening/closing of each circuit and the switching of the passages.
The pipeline system of the new energy automobile is more complex than that of the traditional automobile, and the traditional three-way valve and the four-way valve are adopted, so that a larger installation space is needed, and meanwhile, the cost of the heat management system is increased. In addition, new energy automobile has higher requirement to the pipeline leakage rate to the multi-ported valve that new energy automobile adopted has five more than valve ports usually, adopts traditional case valve casing cooperation to be difficult to satisfy the requirement of inside leakage rate and durability.
Disclosure of Invention
The technical problem that the existing multi-way valve is difficult to meet the use requirement of a new energy automobile is solved; the multi-way valve provided by the invention has the characteristics of good sealing property, low leakage rate and small volume, can realize switching of on and off of a flow channel and adjustment of the flow rate ratio of a valve port, ensures the realization of the function of the multi-way valve of the new energy automobile, enables the integration level of a thermal management system of the new energy automobile to be higher, and also reduces the cost of the thermal management system of the new energy automobile.
The invention is realized by the following technical scheme:
the invention provides a multi-way valve, comprising: the valve body is sealed at two ends, a valve cavity is arranged in the valve body, a plurality of valve ports are arranged on the side wall of the valve body, and each valve port can be communicated with the valve cavity; the side wall of the valve core is provided with a plurality of diversion concave cavities and can rotate around the axis of the valve core; the sealing gasket is positioned between the inner side wall of the valve body and the outer side wall of the valve core, is used for sealing a gap between the valve core and the valve body, and is provided with a plurality of flow guide ports, and each flow guide port corresponds to each valve port one by one; the valve core rotates to switch the corresponding conditions of the diversion concave cavity and the valve ports so as to control the opening/closing of the corresponding valve ports and/or adjust the flow rate proportion of one valve port and the other valve port.
The multi-way valve provided by the invention is characterized in that a valve core is arranged in a valve body with two closed ends, a flow guide concave cavity is arranged on the valve core, a plurality of valve ports are arranged on the side wall of the valve body, sealing gaskets are directly arranged on the outer side wall of the valve core and the inner side wall of the valve body, a plurality of flow guide ports which are in one-to-one correspondence with the valve ports are arranged on the sealing gaskets, and the flow guide concave cavity is driven to rotate together after the valve core rotates, so that the correspondence condition of the flow guide concave cavity and the valve ports is switched, the size of the effective flow cross section area of the valve ports is controlled, and the opening/closing of the corresponding valve ports is controlled and/or the flow ratio of one valve port to the other valve port is adjusted.
The two ends of the valve body are closed, the valve ports are arranged on the side wall of the valve body, the valve core is completely positioned in the valve cavity of the valve body, and meanwhile, a gap between the valve core and the valve body is sealed through the sealing gasket, so that non-functional liquid leakage between the valve ports can be prevented, the whole multi-way valve can be ensured to have good sealing performance, and compared with a mode that the valve ports are respectively arranged on the side wall and the end part of the valve body, the volume of the multi-way valve can be reduced, and the requirement on installation space is lowered. The size of the effective flow cross section of the valve port is controlled by switching the corresponding condition of the flow guide concave cavity and the valve port, so that the opening/closing of the corresponding valve port is controlled and/or the flow proportion of one valve port and the other valve port is adjusted, and the functional requirement of pipeline switching of the heat management system of the new energy automobile can be met.
Therefore, the multi-way valve provided by the invention has the characteristics of good sealing performance, low leakage rate and small volume, can realize switching of on and off of a flow channel and adjustment of the valve port flow proportion, ensures the realization of the function of the multi-way valve of the new energy automobile, enables the integration level of the heat management system of the new energy automobile to be higher, and also reduces the cost of the heat management system of the new energy automobile.
In an optional implementation mode, a valve cover is welded at one end of the valve body in a sealing mode, the valve core is connected with the valve cover in a rotating mode, the valve core is installed in a valve cavity of the valve body before the valve body is sealed, and then the valve cover is welded with the valve body in a sealing mode, so that on one hand, the valve core is convenient to assemble, on the other hand, the integrity of the valve body can be guaranteed, and further the sealing performance and the durability of the multi-way valve are guaranteed.
In an optional embodiment, the side wall of the sealing gasket facing the valve core is covered with a polytetrafluoroethylene layer to reduce friction between the valve core and the sealing gasket, so that on one hand, the service life of the sealing gasket can be prolonged, and on the other hand, the friction force generated when the valve core rotates can be reduced, thereby facilitating the rotation precision of the valve core and accurately controlling the opening/closing of the valve port and the adjustment of the flow rate ratio.
In an optional implementation manner, the sealing gasket is provided with a plurality of convex ribs facing the side wall of the valve body in a criss-cross manner, so that corresponding deformation spaces exist among the convex ribs, and therefore the sealing gasket is easy to deform, the sealing gasket and the valve core are convenient to assemble on one hand, the sealing performance between the valve core and the valve body can be ensured on the other hand, and the sealing gasket can easily deform and avoid when the valve core rotates, so that the resistance to rotation of the valve core is further reduced.
In an alternative embodiment, the cross-section of the rib in the width direction is triangular, so as to ensure sufficient structural strength of the connection between the rib itself and the sealing gasket.
In an alternative embodiment, the cross section of the end of each valve port facing the valve core is perpendicular to the radial direction of the valve core, so that the acting force and the reaction force of the liquid flow act on the axis of the valve core perpendicularly, and the valve core is prevented from deflecting under the acting force.
In an alternative embodiment, an end of each valve port, which is far away from the valve core, is located on the same plane, so that each valve port is connected with a corresponding pipeline.
In an optional embodiment, the number of the valve ports is greater than or equal to 5, so that the multi-way valve can meet the use requirement of a new energy automobile.
In an alternative embodiment, the valve ports are arranged in multiple rows along the axial direction of the valve core, so that the valve ports can be arranged on the same plane.
In an alternative embodiment, two of the valve ports can be communicated with another valve port at the same time, so as to control the opening size of the corresponding valve port, thereby controlling the proportion of the liquid flow passing through the valve ports.
Compared with the prior art, the invention has the following advantages and beneficial effects
1. According to the multi-way valve provided by the invention, two ends of the valve body are closed, the valve port is arranged on the side wall of the valve body, the valve core is completely positioned in the valve cavity of the valve body, and meanwhile, a gap between the valve core and the valve body is sealed by the sealing gasket, so that the whole multi-way valve can be ensured to have good sealing performance, and compared with a mode that the valve port is respectively arranged on the side wall and the end part of the valve body, the multi-way valve can be reduced in size and the requirement on the installation space is reduced.
2 the multi-way valve provided by the invention controls the size of the effective flow cross section of the valve port by switching the corresponding condition of the flow guide concave cavity and the valve port, further controls the opening/closing of the corresponding valve port and/or adjusts the flow proportion of one valve port and the other valve port, and can meet the functional requirement of pipeline switching of a heat management system of a new energy automobile.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
In the drawings:
FIG. 1 is an exploded view of a multi-way valve according to an embodiment of the present invention;
FIG. 2 is a schematic front view of the multi-way valve of the embodiment of FIG. 1;
FIG. 3 isbase:Sub>A schematic view of the structure of the plane A-A in FIG. 2;
FIG. 4 is a schematic view of the structure of the plane B-B in FIG. 2;
FIG. 5 is a schematic view of the structure of the plane C-C of FIG. 2;
FIG. 6 is an exploded view of a multi-way valve according to another embodiment of the present invention;
FIG. 7 is a schematic front view of the multi-way valve of the embodiment of FIG. 6;
FIG. 8 is a schematic view of the structure of the surface D-D of FIG. 7;
fig. 9 is a schematic view of the structure of plane E-E of fig. 7.
Reference numbers and corresponding part names in the figures:
10-valve body, 11-valve cavity, 12-valve port, 121-first interface, 122-second interface, 123-third interface, 124-fourth interface, 125-fifth interface, 126-sixth interface, 127-seventh interface, 128-eighth interface;
20-spool, 21-pilot cavity, 211-first cavity, 212-second cavity, 213-third cavity, 214-fourth cavity, 215-fifth cavity, 216-sixth cavity, 217-seventh cavity, 218-eighth cavity, 22-drive shaft;
30-sealing gasket, 31-flow guide opening and 32-convex rib;
and 40-valve cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, the terms "central," "upper," "lower," "left," "right," "vertical," "longitudinal," "lateral," "horizontal," "inner," "outer," "front," "rear," "top," "bottom," and the like refer to orientations or positional relationships that are conventionally used in the manufacture of the present application, or that are routinely understood by those of ordinary skill in the art, but are merely used to facilitate the description and to simplify the description and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.
Example 1
In connection with fig. 1, the present embodiment provides a multi-way valve comprising: the valve comprises a valve body 10, a valve cavity 11 is arranged in the valve body 10, a plurality of valve ports 12 are arranged on the side wall of the valve body, and each valve port 12 can be communicated with the valve cavity 11; the side wall of the valve core 20 is provided with a plurality of diversion concave cavities 21 which can rotate around the axis of the valve core; a sealing gasket 30 located between the inner sidewall of the valve body 10 and the outer sidewall of the valve element 20, configured to seal a gap between the valve element 20 and the valve body 10, and provided with a plurality of diversion ports 31, where each diversion port 31 corresponds to each valve port 12 one by one; by the rotation of the valve core 20, the corresponding conditions of the diversion concave cavity 21 and the valve port 12 are switched, so as to control the opening/closing of the corresponding valve port 12 and/or adjust the flow rate proportion of one valve port 12 and the other valve port 12.
It will be appreciated that, in order to facilitate the manufacture of the valve chamber 11, the valve chamber 11 is generally made in a cylindrical or conical shape, and the corresponding valve core 20 is also made in a cylindrical or conical shape. A drive shaft 22 is provided at one end of the valve spool 20 to drivingly connect the output shaft of the drive motor to the valve spool 20.
In this embodiment, a valve cover 40 is welded at one end of the valve body 10 in a sealing manner, the valve core 20 is rotatably connected with the valve cover 40, so that the valve core 20 is installed in the valve cavity 11 of the valve body 10 before the valve body 10 is sealed, and then the valve cover 40 is welded with the valve body 10 in a sealing manner, on one hand, the valve core 20 is convenient to assemble, on the other hand, the integrity of the valve body 10 can be ensured, and further, the sealing performance and the durability of the multi-way valve are ensured. Generally, radial ribs are provided on the inner and/or outer sides of the valve cover 40 to secure the structural strength of the valve cover 40.
The position and size of the flow-guiding cavity 21 on the valve core 20 are determined according to the position of the valve port 12, the use condition of the multi-way valve and the required functional requirements on the flow passage control.
The gasket 30 is usually made of rubber material to ensure sufficient sealing performance, such as ethylene propylene diene monomer, nitrile rubber, fluorosilicone rubber, etc. In this embodiment, the side wall of the sealing gasket 30 facing the valve element 20 is covered with a teflon layer, so as to reduce friction between the valve element 20 and the sealing gasket 30 through the self-lubricating property of teflon, on one hand, the service life of the sealing gasket 30 can be prolonged, and on the other hand, the friction force generated when the valve element 20 rotates can be reduced, thereby facilitating the control of the rotation precision of the valve element 20, and the accurate control of the opening/closing of the valve port 12 and the adjustment of the flow rate ratio.
On the basis, the side wall of the sealing gasket 30, which faces the valve body 10, is provided with a plurality of convex ribs 32 in a criss-cross manner, so that corresponding deformation spaces exist between the convex ribs 32, and the sealing gasket 30 is easy to deform, so that the assembly of the sealing gasket 30 and the valve core 20 is facilitated, the sealing performance between the valve core 20 and the valve body 10 can be ensured, and the sealing gasket 30 can be easily deformed and avoided when the valve core 20 rotates, so that the rotation resistance of the valve core 20 is further reduced.
Preferably, the cross-section of the rib 32 in the width direction is triangular to ensure sufficient structural strength of the connection between the rib 32 itself and the gasket 30.
The number of the valve ports 12 is determined according to the number of the connecting flow channels required by the multi-way valve, namely the number of the valve ports 12 is greater than or equal to 5, so that the multi-way valve can meet the use requirement of a new energy automobile.
Meanwhile, in the present embodiment, the cross section of the end of each valve port 12 facing the valve core 20 is perpendicular to the radial direction of the valve core 20, so that the acting force and the reaction force of the liquid flow act on the axis of the valve core 20 perpendicularly, and the valve core 20 is prevented from deflecting under the acting force thereof.
Preferably, an end of each valve port 12 away from the valve core 20 is located on the same plane, so as to connect each valve port 12 with a corresponding pipeline.
Generally, the valve ports 12 are arranged in multiple rows along the axial direction of the valve core 20, so as to ensure that the valve ports 12 can be arranged on the same plane.
It should be understood that, in a plurality of valve ports 12, two valve ports 12 can be communicated with another valve port 12 at the same time, so as to control the opening size of the corresponding valve port 12, and thus the proportion of the liquid flow passing through them.
In order to facilitate understanding of the technical solution of the present embodiment, with reference to fig. 2 to 5, the present embodiment will be described by taking an example in which 8 valve ports 12 are disposed on a valve body 10, specifically:
referring to fig. 2, the valve body 10 is provided with 8 ports 12, which are respectively a first port 121, a second port 122, a third port 123, a fourth port 124, a fifth port 125, a sixth port 126, a seventh port 127, and an eighth port 128. And are arranged in three rows along the axial direction of the valve core 20, that is, the first row is sequentially a first port 121 and a second port 122 from left to right, the second row is sequentially a third port 123, a fourth port 124 and a fifth port 125 from left to right, and the third row is sequentially a sixth port 126, a seventh port 127 and an eighth port 128 from left to right.
In the initial state, the first port 121 communicates with the third port 123, the fourth port 124 communicates with the fifth port 125, the seventh port 127 communicates with the eighth port 128, and the second port 122 and the sixth port 126 are in the closed state. That is, in the initial state, the spool 20 has a first recess 211 facing both the first port 121 and the third port 123 (fig. 3), a second recess 212 facing both the fourth port 124 and the fifth port 125 (fig. 4), and a third recess 213 facing both the seventh port 127 and the eighth port 128 (fig. 5). The portion of the valve element 20 opposite to the second port 122 and the sixth port 126 may be a solid or a recess smaller than or equal to the corresponding ports.
After the valve core 20 rotates by a first set angle, in the present embodiment, taking the case that the valve core 20 rotates 45 ° counterclockwise from the initial position as an example, at this time, the first port 121 communicates with the third port 123, the second port 122 communicates with the fourth port 124, the sixth port 126 communicates with the seventh port 127, and the fifth port 125 and the eighth port 128 are in a closed state. That is, in this state, the spool 20 has the fourth recess 214 that faces both the first port 121 and the third port 123, the fifth recess 215 that faces both the sixth port 126 and the seventh port 127, and the first recess 211 that faces both the second port 122 and the fourth port 124. The parts of the valve core 20 opposite to the fifth port 125 and the eighth port 128 may be solid or may be recesses smaller than or equal to the corresponding ports.
After the valve element 20 rotates by the second set angle, in the present embodiment, for example, the valve element 20 rotates by 135 ° counterclockwise from the initial position, at this time, the first port 121 communicates with the second port 122, the third port 123 communicates with the fourth port 124, the sixth port 126 communicates with the seventh port 127, and the fifth port 125 and the eighth port 128 are in a closed state. That is, in this state, the spool 20 has the sixth recess 216 facing the first port 121 and the second port 122, the seventh recess 217 facing the third port 123 and the fourth port 124, and the eighth recess 218 facing the sixth port 126 and the seventh port 127, and the portion of the spool 20 facing the fifth port 125 and the eighth port 128 may be a solid or a recess smaller than or equal to the corresponding port.
After the valve core 20 rotates by a third set angle, in this embodiment, the valve core 20 rotates by 135 ° to 180 ° counterclockwise from the initial position, for example, rotates by 157.5 ° counterclockwise, at this time, the first port 121 communicates with the second port 122, the sixth port 126 communicates with the seventh port 127, the third port 123 communicates with the fifth port 125 simultaneously with the fourth port 124, and the eighth port 128 is in a closed state. That is, the first port 121 and the second port 122 simultaneously face the sixth recess 216, the sixth port 126 and the seventh port 127 simultaneously face the eighth recess 218, while the third port 123, the fourth port 124 and the fifth port 125 communicate through the ninth recess of the spool 20, and as the spool 20 rotates, the sectional area in which the third port 123 and the fourth port 124 communicate gradually decreases from 100% to 0% and the sectional area in which the fourth port 124 and the fifth port 125 communicate gradually increases from 0% to 100%. The part of the valve core 20 opposite to the eighth port 128 may be a solid or a recess smaller than or equal to the corresponding port.
After the valve element 20 rotates by the fourth set angle, in the present embodiment, for example, the valve element 20 rotates by 270 ° counterclockwise from the initial position, at this time, the first port 121 communicates with the third port 123, the fourth port 124 communicates with the fifth port 125, the sixth port 126 communicates with the seventh port 127, and the second port 122 and the eighth port 128 are in the closed state. It can be understood that, in this state, the second cavity 212 faces the first port 121 and the third port 123, the third cavity 213 faces the sixth port 126 and the seventh port 127, and the ninth cavity faces the fourth port 124 and the fifth port 125, wherein for the portion of the spool 20 facing the second port 122 and the eighth port 128, the recess may be a solid or a recess smaller than or equal to the recess of the corresponding port.
To sum up, in the multi-way valve provided in this embodiment, a valve core 20 is disposed in a valve body 10 with two closed ends, a flow guiding cavity 21 is disposed on the valve core 20, a plurality of valve ports 12 are disposed on a side wall of the valve body 10, meanwhile, a sealing gasket 30 is directly disposed on an outer side wall of the valve core 20 and an inner side wall of the valve body 10, a plurality of flow guiding ports 31 corresponding to the valve ports 12 one to one are disposed on the sealing gasket 30, and after the valve core 20 rotates, the flow guiding cavity 21 is driven to rotate together, so as to switch the correspondence between the flow guiding cavity 21 and the valve ports 12, so as to control the effective flow cross-sectional area of the valve ports 12, and further control the opening/closing of the corresponding valve ports 12 and/or adjust the flow ratio between one valve port 12 and the other valve port 12.
The two ends of the valve body 10 are closed, the valve ports 12 are arranged on the side wall of the valve body 10, the valve core 20 is completely positioned in the valve cavity 11 of the valve body 10, and meanwhile, the gap between the valve core 20 and the valve body 10 is sealed through the sealing gasket 30, so that non-functional liquid leakage between the valve ports 12 can be prevented, the whole multi-way valve can be ensured to have good sealing performance, and compared with a mode that the valve ports 12 are respectively arranged on the side wall and the end part of the valve body 10, the volume of the multi-way valve can be reduced, and the requirement on the installation space is lowered. By switching the corresponding conditions of the diversion concave cavity 21 and the valve port 12, the size of the effective flow cross section area of the valve port 12 is controlled, and further the opening/closing of the corresponding valve port 12 is controlled and/or the flow proportion of one valve port 12 and the other valve port 12 is adjusted, so that the functional requirement of pipeline switching of the heat management system of the new energy automobile can be met.
Therefore, the multi-way valve provided by the embodiment has the characteristics of good sealing performance, low leakage rate and small volume, can realize switching of on and off of a flow channel and adjustment of 12 flow proportion of a valve port, ensures realization of functions of the new energy automobile multi-way valve, enables integration level of a new energy automobile thermal management system to be higher, and reduces cost of the new energy automobile thermal management system.
Example 2
With reference to fig. 6, the present embodiment provides a multi-way valve, based on the structure and principle described in embodiment 1, except that 5 valve ports 12 are provided on the valve body 10, specifically:
referring to fig. 7, the valve body 10 is provided with 5 ports 12, which are a first port 121, a second port 122, a third port 123, a fourth port 124, and a fifth port 125, respectively. And two rows are arranged along the axial direction of the valve core 20, that is, the first row is sequentially provided with a second port 122, a third port 123 and a fourth port 124 from left to right, and the second row is sequentially provided with a fifth port 125 and a second port 122 from left to right.
In the initial state, the first port 121 is closed, the second port 122 communicates with the fifth port 125, and the third port 123 communicates with the fourth port 124. Specifically, referring to fig. 8 and 9, in the initial state, the valve spool 20 has a first recess 211 (fig. 8 and 9) facing both the second port 122 and the fifth port 125, and a second recess 212 (fig. 8) facing both the third port 123 and the fourth port 124. The portion of the valve element 20 opposite to the first port 121 may be a solid or a recess smaller than or equal to the corresponding port.
After the valve core 20 rotates by a first set angle, the present embodiment takes the valve core 20 rotating clockwise by 10 ° to 40 ° from the initial position, for example, rotating clockwise by 25 °, and at this time, the first port 121 and the fifth port 125 are both communicated with the second port 122, and the third port 123 is communicated with the fourth port 124. It will be appreciated that in this state, the third port 123 and the fourth port 124 are both facing the second cavity 212, and the second port 122 is facing the first cavity 211 and the fifth port 125 is partially facing the first cavity 211. Also, as the spool 20 rotates, the sectional area where the fifth port 125 and the second port 122 communicate gradually decreases from 100% to 0%, and the sectional area where the first port 121 and the second port 122 communicate gradually increases from 0% to 100%.
After the valve element 20 rotates by the second set angle, in the present embodiment, taking the case that the valve element 20 rotates by 50 ° clockwise from the initial position as an example, at this time, the first port 121 communicates with the second port 122, the third port 123 communicates with the fourth port 124, and the fifth port 125 is closed. That is, the first port 121 and the second port 122 communicate through the first cavity 211, the third port 123 and the fourth port 124 simultaneously face the second cavity 212, and the portion of the valve element 20 facing the fifth port 125 may be a solid or a recess smaller than or equal to the corresponding port.
After the valve core 20 rotates by the third set angle, in the present embodiment, the valve core 20 rotates clockwise by 90 ° from the initial position, at this time, the fourth port communicates with the fifth port 125, the third port 123 communicates with the second port 122, and the first port 121 is closed. That is, in this state, the fourth port 124 and the fifth port 125 are both facing the first cavity 211, and the third port 123 and the second port 122 are both facing the second cavity 212.
After the valve core 20 rotates by a fourth set angle, in the present embodiment, for example, the valve core 20 rotates by 100 ° to 130 ° clockwise from the initial position, for example, rotates by 115 ° clockwise, at this time, the third port 123 communicates with the second port 122, and the first port 121 and the fifth port 125 communicate with the fourth port 124. In this state, the third port 123 and the second port 122 face the second cavity 212, the first port 121 and the second port 122 face the first cavity 211, and the fourth port 124 face the first cavity 211. And, as the spool 20 rotates, the sectional area where the fifth port 125 and the fourth port 124 communicate gradually decreases from 100% to 0%, and the sectional area where the first port 121 and the second port 122 communicate gradually increases from 0% to 100%.
After the valve element 20 rotates by a fifth set angle, in the present embodiment, the valve element 20 rotates by 140 ° clockwise from the initial position, at this time, the second port 122 communicates with the third port 123, the first port 121 communicates with the fourth port 124, and the fifth port 125 is closed. In this state, the third port 123 and the second port 122 face the second cavity 212, and the fourth port 124 and the first port 121 face the first cavity 211.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A multi-way valve, comprising:
the valve comprises a valve body (10), two ends of the valve body are closed, a valve cavity (11) is arranged in the valve body, a plurality of valve ports (12) are arranged on the side wall of the valve body, and each valve port (12) can be communicated with the valve cavity (11);
the side wall of the valve core (20) is provided with a plurality of flow guide concave cavities (21) and can rotate around the axis of the valve core;
the sealing gasket (30) is positioned between the inner side wall of the valve body (10) and the outer side wall of the valve core (20), is used for sealing a gap between the valve core (20) and the valve body (10), and is provided with a plurality of diversion ports (31), and each diversion port (31) corresponds to each valve port (12) one by one;
the valve body (10) is provided with 8 valve ports (12) which are a first port (121), a second port (122), a third port (123), a fourth port (124), a fifth port (125), a sixth port (126), a seventh port (127) and an eighth port (128), the eight valve ports (12) are arranged in three rows along the axial direction of the valve core (20), the first row sequentially comprises the first port (121) and the second port (122) from left to right, the second row sequentially comprises the third port (123), the fourth port (124) and the fifth port (125) from left to right, and the third row sequentially comprises the sixth port (126), the seventh port (127) and the eighth port (128) from left to right;
in an initial state, the first port (121) is communicated with the third port (123), the fourth port (124) is communicated with the fifth port (125), the seventh port (127) is communicated with the eighth port (128), and the second port (122) and the sixth port (126) are in a closed state;
when the valve core (20) rotates by a first set angle, the first port (121) is communicated with the third port (123), the second port (122) is communicated with the fourth port (124), the sixth port (126) is communicated with the seventh port (127), and the fifth port (125) and the eighth port (128) are in a closed state;
when the valve core (20) rotates by a second set angle, the first port (121) is communicated with the second port (122), the third port (123) is communicated with the fourth port (124), the sixth port (126) is communicated with the seventh port (127), and the fifth port (125) and the eighth port (128) are in a closed state;
when the valve core (20) rotates for a third set angle, the first port (121) is communicated with the second port (122), the sixth port (126) is communicated with the seventh port (127), the third port (123) and the fifth port (125) are simultaneously communicated with the fourth port (124), the eighth port (128) is in a closed state, and the cross-sectional area for communicating the third port (123) with the fourth port (124) is gradually reduced from 100% to 0% and the cross-sectional area for communicating the fourth port (124) with the fifth port (125) is gradually increased from 0% to 100% along with the rotation of the valve core (20);
when the valve element (20) rotates by a fourth set angle, the first port (121) is communicated with the third port (123), the fourth port (124) is communicated with the fifth port (125), the sixth port (126) is communicated with the seventh port (127), and the second port (122) and the eighth port (128) are in a closed state.
2. The multi-way valve according to claim 1, wherein a valve cover (40) is hermetically welded at one end of the valve body (10), and the valve core (20) is rotatably connected with the valve cover (40).
3. The multi-way valve according to claim 1, wherein the side wall of the sealing gasket (30) facing the valve core (20) is covered with a polytetrafluoroethylene layer.
4. The multi-way valve according to claim 1, wherein the sealing gasket (30) is provided with a plurality of ribs (32) criss-crossed against the side wall of the valve body (10).
5. The multi-way valve according to claim 4, wherein the cross section of the rib (32) in the width direction is triangular.
6. The multi-way valve according to claim 1, wherein the cross section of the end of each valve port (12) facing the valve core (20) is perpendicular to the radial direction of the valve core (20).
7. The multi-way valve according to any one of claims 1 to 6, wherein the ends of the valve ports (12) remote from the valve core (20) are located on the same plane.
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| CN202211670139.8A CN115654177B (en) | 2022-12-26 | 2022-12-26 | Multi-way valve |
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| CN202211670139.8A CN115654177B (en) | 2022-12-26 | 2022-12-26 | Multi-way valve |
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| CN115654177B true CN115654177B (en) | 2023-03-14 |
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| US6994316B2 (en) * | 2003-01-16 | 2006-02-07 | General Electric Company | Rotor valve and seal |
| JP2017166569A (en) * | 2016-03-16 | 2017-09-21 | 日立オートモティブシステムズ株式会社 | Flow control valve and cooling system |
| US10865896B2 (en) * | 2018-02-27 | 2020-12-15 | Honeywell International Inc. | Rotary plate valve systems |
| JP2021183850A (en) * | 2020-05-21 | 2021-12-02 | 株式会社デンソー | Flow channel switching device |
| CN115218003A (en) * | 2021-04-16 | 2022-10-21 | 浙江三花汽车零部件有限公司 | Control valve and method for manufacturing the same |
| CN113864490B (en) * | 2021-09-27 | 2024-03-19 | 浙江吉利控股集团有限公司 | Multi-way valve |
| CN115247716A (en) * | 2021-12-18 | 2022-10-28 | 张海霞 | Nine-way electronic water valve for new energy automobile |
| CN114413031A (en) * | 2021-12-24 | 2022-04-29 | 成都万友滤机有限公司 | Integrated multi-way valve capable of being adjusted in comparative example |
| CN217328594U (en) * | 2022-05-16 | 2022-08-30 | 广东威灵电机制造有限公司 | Electronic water valve, thermal management system thereof and vehicle |
| CN115325217A (en) * | 2022-09-15 | 2022-11-11 | 重庆超力高科技股份有限公司 | Vehicle thermal management multi-way valve and vehicle thermal management system |
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