An electronic water valve

Abstract

This utility model provides an electronic water valve, including a valve cover, a valve housing, a valve core, a first sealing gasket, and a second sealing gasket. The valve housing is fixed below the valve cover and includes a receiving portion and a base. The receiving portion includes a first valve port. The valve core has a valve core port and a mounting groove on its side. The valve core port is connected to the valve port to allow the flow of fluid medium. The first sealing gasket is embedded in the mounting groove and rotates synchronously with the valve core. The second sealing gasket is placed between the first sealing gasket and the valve housing and is fixed to the valve housing. The second sealing gasket is at least partially in contact with the first sealing gasket. This electronic water valve of this utility model prevents the valve core from directly contacting the valve housing sealing gasket, solving the internal leakage problem while reducing the torque required for valve core rotation and lowering the performance requirements of the motor and transmission system inside the actuator, thereby meeting the usage requirements of the thermal management system.

Description

Technical Field

[0001] This utility model relates to the field of thermal management of new energy vehicles, and in particular to an electronic water valve. Background Technology

[0002] As the thermal management systems of new energy vehicles are developing towards integration, multiple subsystems of these systems typically utilize multiple fluid control devices. In related technologies, to address internal leakage, the internal sealing method for column valves involves installing an internal sealing gasket on the valve body, ensuring a tight fit between the valve core and the gasket. This places high demands on the total runout of the valve core's outer cylindrical surface; the valve core surface must be nearly perfectly cylindrical to prevent internal leakage due to varying pressure on the internal sealing gasket during rotation. This also increases the torque required for valve core rotation, placing higher demands on the actuator's output torque and ultimately requiring higher performance from the motor and higher reduction ratios in traditional systems. As a fluid control device within the thermal management system, the electronic water valve needs to address the internal leakage issue while reducing the torque required for valve core rotation and lowering the performance requirements of the actuator's motor and transmission system to meet the operational needs of the thermal management system.

[0003] Therefore, it is necessary to provide an electronic water valve to overcome the defects mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide an electronic water valve that, through a double-seal gasket sealing method, prevents the valve core from directly contacting the valve shell seal gasket. This solves the internal leakage problem while reducing the torque required for valve core rotation and lowering the performance requirements of the actuator's motor and transmission system, thereby meeting the needs of the thermal management system.

[0005] According to one aspect of the present invention, an electronic water valve is provided, comprising a valve cover, a valve housing, a valve core, a first sealing gasket, and a second sealing gasket. The upper end of the electronic water valve is located on the side where the valve cover is located. The valve housing is fixed below the valve cover. The valve housing includes a receiving portion having an internal cavity and a base located below the receiving portion. The receiving portion includes at least one first valve port through the receiving portion and the base for discharging a medium to the outside. The valve core is located in the receiving portion and is driven to rotate by an actuator. The valve core has a valve core port and a mounting groove arranged around the valve core port. The valve core port is connected to the first valve port for discharging a fluid medium. The first sealing gasket is embedded in the mounting groove and rotates synchronously with the valve core. The second sealing gasket is located between the first sealing gasket and the valve housing and is fixed to the valve housing. The second sealing gasket is at least partially in contact with the first sealing gasket.

[0006] The above solution employs a double internal sealing gasket method, preventing the valve core from directly contacting the valve body sealing gasket (the second sealing gasket). This addresses the internal leakage issue while reducing the torque required for valve core rotation and lowering the requirements for the valve core's full runout, thus reducing manufacturing complexity. Furthermore, it reduces the performance requirements for the actuator's motor and transmission system, thereby meeting the needs of the thermal management system. The internal sealing gaskets on both the valve core and valve body allow for greater tolerance in the valve core's rotation angle accuracy; even if the valve core does not fully rotate to the set angle, internal leakage will not occur within a certain angular error range.

[0007] Preferably, the outer surface of the valve core has a valve core port and a mounting groove surrounding the valve core port, and the valve core port is connected to the first valve port to allow the flow of fluid medium.

[0008] Preferably, the upper end face of the second sealing gasket is closer to the valve cover than the upper end face of the first sealing gasket, and the lower end face of the second sealing gasket is closer to the lower end face of the valve body than the lower end face of the first sealing gasket.

[0009] Preferably, the side wall of the second sealing gasket has a through-hole corresponding to the first valve port for the flow of fluid medium.

[0010] Preferably, the valve core further includes multiple mounting protrusions extending into the mounting groove along a direction perpendicular to the side wall of the mounting groove, and the mounting protrusions abut against the first sealing gasket. This solution allows for the installation of a sealing gasket on the valve core, resulting in a simple structural design, low manufacturing difficulty, easy installation of the valve core sealing gasket, and greater adaptability for mass production of the valve core.

[0011] Preferably, the upper end face of the second sealing gasket is provided with at least two first limiting grooves, and the lower end face of the valve cover is provided with at least two first limiting protrusions corresponding to the first limiting grooves, with the first limiting protrusions placed inside the first limiting grooves.

[0012] Preferably, the lower end face of the second sealing gasket is provided with at least two second limiting grooves, and the base is provided with at least two second limiting protrusions corresponding to the second limiting grooves, with the second limiting protrusions placed inside the second limiting grooves.

[0013] Preferably, the base has a cylindrical groove, and the lower end of the second sealing gasket is placed in the cylindrical groove; the second limiting protrusion is placed in the cylindrical groove, and the second limiting groove is engaged with the second limiting protrusion.

[0014] Preferably, the base further includes at least one second valve port communicating with the first valve port, the second valve port being disposed downwards to allow fluid medium to flow to the outside.

[0015] Preferably, the electronic water valve further includes a first sealing ring sleeved on the valve core and adjacent to the lower end face of the valve cover, and a second sealing ring sleeved on the valve core and adjacent to the base.

[0016] Preferably, the contact points of the first sealing gasket and the second sealing gasket are both double-layered structures to reduce friction caused by their mutual movement.

[0017] Preferably, the contact area between the first sealing gasket and the second sealing gasket includes the body of the first sealing gasket and the PTFE membrane. This reduces the frictional force required for the valve core to rotate, thereby reducing the torque required for the valve core to rotate.

[0018] Preferably, the contact area between the second sealing gasket and the first sealing gasket includes the body of the second sealing gasket and the PTFE membrane. This reduces the frictional force required for the valve core to rotate, thereby reducing the torque required for the valve core to rotate.

[0019] Preferably, the electronic water valve further includes an outer sealing mesh, which is embedded in the end face of the valve body on the side relatively away from the valve cover.

[0020] The electronic water valve provided by this utility model includes a valve cover, a valve body, a valve core, a first sealing gasket, and a second sealing gasket, so that the valve core does not directly contact the valve body sealing gasket. While solving the internal leakage problem, it reduces the torque required for the valve core to rotate, and reduces the performance requirements of the motor and transmission system in the actuator, thereby meeting the usage requirements of the thermal management system. Attached Figure Description

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Figure 1 This is a schematic diagram of the electronic water valve in Example 1;

[0023] Figure 2 This is a top view of the valve cover side of the electronic water valve in Embodiment 1;

[0024] Figure 3 Example 1 along Figure 2 A cross-sectional view along the AA direction;

[0025] Figure 4 This is a schematic diagram of the valve core and the first sealing gasket in Embodiment 1;

[0026] Figure 5 This is a schematic diagram of the second sealing gasket in Example 1;

[0027] Figure 6 This is a schematic diagram of the valve cover and the second sealing gasket in Embodiment 1;

[0028] Figure 7 This is a schematic diagram of the valve body in Example 1;

[0029] Figure 8 This is a schematic diagram of the electronic water valve in Example 2;

[0030] Figure 9This is a cross-sectional view of the electronic water valve in Example 2.

[0031] Explanation of icon numbers:

[0032] 10. Valve core; 20. First sealing ring; 30. Valve cover; 40. Second sealing gasket; 50. First sealing gasket; 60. Valve body; 70. Outer sealing mesh; 80. Second sealing ring; 101. Mounting groove; 102. Valve core port; 103. Mounting protrusion; 301. First limiting protrusion; 401. First limiting groove; 402. Through port; 403. Second limiting groove; 601. Receiving part; 602. Base; 6011. First valve port; 6021. Second valve port; 6022. Cylindrical groove; 6023. Second limiting protrusion; 10′. Valve core′; 30′. Valve cover′; 40′. Second sealing gasket′; 50′. First sealing gasket′; 60′. Valve body′. Detailed Implementation

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0035] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0036] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0039] The embodiments for carrying out this application will be described with reference to the accompanying drawings. It should be noted that in the following description, [the following will be used to describe...]. Figure 1 The direction on the winning bid is set to "the upper end of the electronic water valve". Figure 1 The direction under the bid is set to "the lower end of the electronic water valve". The above direction is only used to describe the relative positional relationship of the various components in this embodiment and does not represent the direction in the actual application scenario.

[0040] Example 1

[0041] See Figures 1 to 7 As shown, this embodiment provides an electronic water valve, which is a type of column valve, specifically an eight-way valve, including a valve cover 30, a valve housing 60, a valve core 10, a first sealing gasket 50, and a second sealing gasket 40. The upper end of the electronic water valve is located on the side where the valve cover 30 is situated. The valve housing 60 is fixed below the valve cover 30. The valve housing 60 includes a receiving portion 601 with an internal cavity and a base 602 located below the receiving portion 601. The receiving portion 601 includes at least one first valve port 6011 for external flow of medium, penetrating the receiving portion 601 and the base 602. The valve core 10 is placed in the receiving portion 601 and rotates via an actuator. The valve core 10 has a valve core port 102 and surrounding the valve core port 102. The mounting groove 101 is specifically designed so that the outer surface of the valve core 10 has a valve core port 102 and a mounting groove 101 surrounding the valve core port 102. The valve core port 102 is connected to the first valve port 6011 to allow the flow of fluid medium. The first sealing gasket 50 is embedded in the mounting groove 101 and rotates synchronously with the valve core 10. The second sealing gasket 40 is placed between the first sealing gasket 50 and the valve housing 60 and is fixed to the valve housing 60. The second sealing gasket 40 is at least partially in contact with the first sealing gasket 50, so that the valve core 10 does not directly contact the second sealing gasket. This solves the internal leakage problem while reducing the torque required for the rotation of the valve core 10, reducing the performance requirements of the motor and transmission system in the actuator, thereby meeting the usage requirements of the thermal management system. Both the valve core 10 and the valve housing 60 are equipped with internal sealing gaskets, which makes the accuracy tolerance of the valve core 10 rotation angle larger. Even if the valve core 10 does not fully rotate to the set angle, internal leakage will not occur within a certain angle error range.

[0042] See Figure 3 As shown, the upper end face of the second sealing gasket 40 is closer to the valve cover 30 than the upper end face of the first sealing gasket 50, and the lower end face of the second sealing gasket 40 is closer to the lower end face of the valve housing 60 than the lower end face of the first sealing gasket 50. The base 602 also includes at least one second valve port 6021 communicating with the first valve port 6011, the second valve port 6021 being disposed downwards for allowing fluid medium to flow to the outside. The electronic water valve also includes an outer sealing mesh 70, which is embedded in the end face of the valve housing 60 on the side relatively away from the valve cover 30.

[0043] The electronic water valve also includes a first sealing ring 20 sleeved on the valve core 10 and adjacent to the lower end face of the valve cover 30, and a second sealing ring 80 sleeved on the valve core 10 and adjacent to the base 602.

[0044] See Figure 4 As shown, the valve core 10 also includes a plurality of mounting protrusions 103 extending from the side wall of the mounting groove 101 in a direction perpendicular to the side wall of the mounting groove 101. The plurality of mounting protrusions 103 are not connected to each other, and the mounting protrusions 103 abut against the first sealing gasket 50. The above solution can realize the installation of the sealing gasket on the valve core 10. The structure design is simple, the manufacturing difficulty is low, the installation difficulty of the sealing gasket of the valve core 10 is small, and the mass production adaptability of the valve core 10 is stronger.

[0045] See Figure 5 As shown, the side wall of the second sealing gasket 40 has a through port 402 corresponding to the first valve port 6011 for the flow of fluid medium.

[0046] See Figure 5 and Figure 6 As shown, the upper end face of the second sealing gasket 40 is provided with at least two first limiting grooves 401, and the lower end face of the valve cover 30 is provided with at least two first limiting protrusions 301 corresponding to the first limiting grooves 401. The first limiting protrusions 301 are placed in the first limiting grooves 401.

[0047] See Figure 5 and Figure 7 As shown, the lower end face of the second sealing gasket 40 is provided with at least two second limiting grooves 403, and the base 602 is provided with at least two second limiting protrusions 6023 corresponding to the second limiting grooves 403. The second limiting protrusions 6023 are placed within the second limiting grooves 403. Further, the base 602 has a cylindrical slot 6022, the lower end of the second sealing gasket 40 is placed within the cylindrical slot 6022, the second limiting protrusions 6023 are placed within the cylindrical slot 6022, and the second limiting grooves 403 are engaged with the second limiting protrusions 6023.

[0048] The contact points of the first sealing gasket 50 and the second sealing gasket 40 both have a double-layer structure to reduce friction caused by their mutual movement. Furthermore, the contact points of the first sealing gasket 50 and the second sealing gasket 40 include the body of the first sealing gasket 50 and a PTFE film, and the contact points of the second sealing gasket 40 and the first sealing gasket 50 include the body of the second sealing gasket 40 and a PTFE film, reducing the frictional force required for the rotation of the valve core 10, thereby reducing the torque required for the valve core 10 to rotate.

[0049] The electronic water valve provided by this utility model includes a valve cover 30, a valve housing 60, a valve core 10, a first sealing gasket 50, and a second sealing gasket 40, so that the valve core 10 does not directly contact the sealing gasket of the valve housing 60. While solving the internal leakage problem, it reduces the torque required for the valve core 10 to rotate, and reduces the performance requirements of the motor and transmission system in the actuator, thereby meeting the usage requirements of the thermal management system.

[0050] Example 2

[0051] This embodiment provides an electronic water valve, which differs from Embodiment 1 in that the electronic water valve in this embodiment is a disc valve type, including a valve cover '30', a valve housing '60', a valve core '10', a first sealing gasket '50', and a second sealing gasket '40'. The valve housing '60' is fixed below the valve cover '30'. In this embodiment, the first sealing gasket '50' is embedded in the lower end face of the valve core '10', and the second sealing gasket '40' is placed between the first sealing gasket '50' and the valve housing '60' and fixed to the valve housing '60'. The second sealing gasket '40' is at least partially in contact with the first sealing gasket '50', so that the valve core '10' does not directly contact the second sealing gasket '40'. This solves the internal leakage problem while reducing the torque required for the valve core '10' to rotate, reducing the performance requirements of the motor and transmission system in the actuator, thereby meeting the usage requirements of the thermal management system.

[0052] It should be noted that the embodiments 1 and 2 exemplarily provide one structural situation of column valve and disc valve. The specific implementation can also be other types of multi-way valves, such as four-way valve, five-way valve, six-way valve, etc., which can be applied to column valves, disc valves (flat water valves), etc., which can implement various valve structures of this embodiment.

[0053] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. An electronic water valve, characterized in that, include: The valve cover is located on the side of the electronic water valve, which is the upper end of the valve cover. A valve housing, fixed below the valve cover, the valve housing including a receiving portion having an internal cavity and a base located below the receiving portion, the receiving portion including at least one first valve port for discharging a medium to the outside through the receiving portion and the base; A valve core is placed in the receiving part and rotated by an actuator. The valve core has a valve core port and a mounting groove arranged around the valve core port. The valve core port is connected to the first valve port to allow the flow of fluid medium. The first sealing gasket is embedded in the mounting groove and rotates synchronously with the valve core. A second sealing gasket is placed between the first sealing gasket and the valve housing and is fixed to the valve housing, and the second sealing gasket is at least partially in contact with the first sealing gasket.

2. The electronic water valve as described in claim 1, characterized in that, The upper end face of the second sealing gasket is closer to the valve cover than the upper end face of the first sealing gasket, and the lower end face of the second sealing gasket is closer to the lower end face of the valve body than the lower end face of the first sealing gasket.

3. An electronic water valve as described in claim 2, characterized in that, The second sealing gasket has a through-hole on its side wall that corresponds to the first valve port, for the flow of fluid medium.

4. An electronic water valve as described in claim 3, characterized in that, The valve core also includes a plurality of mounting protrusions that are placed on the side wall of the mounting groove and extend toward the mounting groove in a direction perpendicular to the side wall of the mounting groove, and the mounting protrusions abut against the first sealing gasket.

5. An electronic water valve as described in claim 4, characterized in that, The upper end face of the second sealing gasket is provided with at least two first limiting grooves, and the lower end face of the valve cover is provided with at least two first limiting protrusions corresponding to the first limiting grooves, with the first limiting protrusions placed inside the first limiting grooves.

6. An electronic water valve as described in claim 5, characterized in that, The lower end face of the second sealing gasket is provided with at least two second limiting grooves, and the base is provided with at least two second limiting protrusions corresponding to the second limiting grooves, with the second limiting protrusions placed inside the second limiting grooves.

7. An electronic water valve as described in claim 6, characterized in that, The base also includes at least one second valve port communicating with the first valve port, the second valve port being disposed downwards to allow fluid medium to flow to the outside.

8. An electronic water valve as described in claim 7, characterized in that, It also includes a first sealing ring sleeved on the valve core and adjacent to the lower end face of the valve cover, and a second sealing ring sleeved on the valve core and adjacent to the base.

9. An electronic water valve as described in claim 8, characterized in that, The contact points of the first sealing gasket and the second sealing gasket are both double-layered structures to reduce friction caused by their mutual movement.

10. An electronic water valve as described in any one of claims 1 to 9, characterized in that, It also includes an outer sealing mesh, which is embedded in the end face of the valve body on the side relatively away from the valve cover.

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