End face sealed multi-way valve

Abstract

The utility model discloses a multi-way valve with a sealed end face, and relates to the technical field of multi-way valves. Comprising a valve body, a valve cavity is formed in the middle of the valve body, a plurality of valve ports are distributed in the circumference of one end of the valve body, and the valve ports communicate with the valve cavity; the valve element is arranged in the valve cavity, a driving shaft of the valve element is sealed and rotationally connected with the valve body, the valve element is provided with a plurality of flow channels, and flow channel openings of the flow channels directly face the end, provided with the valve port, of the valve body; the sealing gasket is embedded in the inner side of the end, provided with the valve ports, of the valve body, the sealing gasket can seal a gap between the valve element and the valve body, the sealing gasket is provided with a plurality of flow guide ports, and the flow guide ports correspond to the valve ports one to one; and after the valve element rotates by a set angle, the flow channels in the valve element can communicate with the corresponding valve ports according to the corresponding flow path communication modes. The utility model has low leakage failure rate.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-way valves, in particular to a multi-way valve with end face sealing. Background Art

[0002] In the water circuit integration module of new energy vehicles, a multi-way valve is required to control the switching of the flow direction of the liquid medium. For the new energy water circuit integration module, the multi-way valve is usually installed inside the main structure. The existing multi-way valve usually includes a valve body and a valve core, and the valve core is provided with multiple flow channels, and the valve body is provided with multiple flow channel openings. The corresponding control function is achieved by switching the combination between the flow channels and the flow channel openings. Among them, in order to prevent the medium from leaking from the gap between the valve core and the valve body during the use of the multi-way valve, a seal is generally installed between the valve core and the valve body.

[0003] In the prior art, the seal between the multi-way valve core and the valve core member is annular, and the outer diameter of the valve core is slightly larger than the inner diameter of the seal, so that the seal expands slightly under the pressure of the outer wall of the valve core and is squeezed with the inner wall of the valve body, thereby forming a sealing surface. The sealing force generated by the "face-to-face" squeezing is easily affected by external loads, vibrations, impacts, etc., causing the sealing surface to deform and fail, and ultimately leading to medium leakage. At the same time, when the valve core rotates, the sealing surface is affected by the movement, and local sealing failure may also occur. Utility Model Content

[0004] In view of the technical problem that the seals of existing multi-way valves are easily subjected to external loads, vibrations, impacts and the like, causing deformation and failure of the sealing surface, the utility model provides a multi-way valve with end face sealing, in which a sealing gasket is arranged between the end of the valve body and the end of the valve core, so as to prevent non-functional liquid cross-talk between the valve ports, thereby improving the stability and reliability of the sealing of the multi-way valve under complex working conditions, thereby reducing the leakage failure rate of the multi-way valve and reducing technical failures of the water channel integrated module caused by leakage of the multi-way valve.

[0005] The utility model is realized by the following technical solutions:

[0006] The utility model provides a multi-way valve with end face sealing, comprising: a valve body, a valve cavity is arranged in the middle part of the valve body, a plurality of valve ports are distributed circumferentially at one end of the valve body, and each of the valve ports is communicated with the valve cavity; a valve core, the valve core is arranged in the valve cavity, a driving shaft of the valve core is sealed and rotatably connected to the valve body, the valve core is provided with a plurality of flow channels, and a flow channel port of each of the flow channels is arranged opposite to an end of the valve body where the valve port is arranged; a sealing gasket, the sealing gasket is embedded on the inner side of an end of the valve body where the valve port is arranged, the sealing gasket can seal the gap between the valve core and the valve body, and the sealing gasket is provided with a plurality of guide ports, each of the guide ports corresponds to each of the valve ports one by one; wherein, after the valve core is rotated to a set angle, the flow channels on the valve core can connect the corresponding valve ports according to the corresponding flow path communication mode.

[0007] The utility model provides a multi-way valve with end face sealing, a valve core is arranged in the valve body, and a plurality of flow channels are arranged on the valve core, a plurality of valve ports are arranged at one end of the valve body, and a sealing gasket is arranged on the inner side of one end of the valve body where the valve port is arranged, a plurality of guide ports corresponding to the valve ports are arranged on the sealing gasket, and the gap between the valve core and the valve body is sealed by the sealing gasket. When the valve core rotates a preset angle, the correspondence between the flow channel on the valve body and the valve port is switched to control the opening / closing of the corresponding valve port and / or adjust the connection between one valve port and another valve port, thereby realizing the switching of the flow path connection mode and meeting the functional requirements of the pipeline switching of the thermal management system of new energy vehicles.

[0008] The valve ports are distributed along the circumference of the valve body, and a sealing gasket is arranged between the end of the valve body and the end of the valve core. On the one hand, it can prevent non-functional liquid cross-flow between the valve ports and ensure that the multi-way valve with the entire end face seal has good sealing performance. On the other hand, compared with the method of setting the valve ports separately on the side wall of the valve body, the axial dimension of the valve body is small, which can reduce the installation height of the end face seal and reduce its requirements for installation space. The sealing gasket is embedded in the inner side of one end of the valve body where the valve port is set, which can provide support and limit to the sealing gasket through the valve body, reduce the contact area between the valve core and the sealing gasket, thereby reducing the resistance to the rotation of the valve core and reducing the probability of the valve core causing the sealing gasket to deform when the valve core rotates.

[0009] Therefore, the multi-way valve with end face seal provided by the utility model can prevent non-functional liquid cross-linking between the valve ports while realizing the on-off switching of the flow path, thereby improving the stability and reliability of the sealing of the multi-way valve under complex working conditions, thereby reducing the leakage failure rate of the multi-way valve and reducing technical failures of the water path integrated module caused by leakage of the multi-way valve, thereby meeting the use requirements of the thermal management system of new energy vehicles.

[0010] In an optional embodiment, the valve body is adapted to be equipped with a valve cover, and the valve cover sealing cover is arranged at one end of the valve cavity away from the valve port to facilitate the assembly of the multi-way valve.

[0011] In an optional embodiment, a first sealing ring is provided between the valve cover and the valve cavity, and the first sealing ring is used to seal the gap between the valve cover and the valve body to prevent leakage of the valve body.

[0012] In an optional embodiment, the driving shaft of the valve core is rotatably connected to the valve cover, and a second sealing ring is provided on the outer sleeve of the driving shaft of the valve core. The second sealing ring is used for the gap between the driving shaft of the valve core and the valve cover to achieve the sealing and rotatable connection between the valve core and the valve body to avoid leakage of the valve cover.

[0013] In an optional embodiment, a compression spring is provided in the valve cavity. The compression spring is provided between the valve cover and the valve core. The compression spring can press the sealing gasket against the cavity wall of the valve cavity through the valve core so that the sealing gasket can work normally and ensure the sealing performance of the multi-way valve during use.

[0014] In an optional embodiment, a mounting hole is provided at one end of the valve core, and the mounting hole is coaxially arranged with the valve core. One end of the compression spring is inserted into the mounting hole to avoid radial displacement of the compression spring during use, thereby further ensuring the reliability of the sealing of the multi-way valve during use.

[0015] In an optional embodiment, a spring cover is further provided in the valve cavity, and the spring cover is re-disposed on the mounting hole to seal the compression spring through the spring cover, so as to limit and protect the compression spring through the spring cover, thereby further improving the reliability of the compression spring.

[0016] In an optional embodiment, a mounting sealing gasket is further provided at one end of the valve body where the valve port is provided, and the mounting sealing gasket is used to seal the gap between the valve body and a component on which the valve body is installed, and the mounting sealing gasket is provided with a plurality of flow holes, each of the flow holes corresponding to each of the valve ports one by one, so as to directly connect the valve port with a pipeline on the component on which the valve body is installed.

[0017] In an optional embodiment, five valve ports are provided to form a five-way valve, so as to ensure that the multi-way valve can meet the use requirements of the thermal management system of new energy vehicles.

[0018] In an optional embodiment, a side of the sealing gasket facing the valve core is covered with a polytetrafluoroethylene layer to reduce the resistance of the valve core when rotating relative to the sealing gasket and further avoid deformation of the sealing gasket when the valve core rotates.

[0019] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0020] 1. The multi-way valve with end face sealing provided by the utility model has a valve core arranged in the valve body, and multiple flow channels are arranged on the valve core, and multiple valve ports are arranged at one end of the valve body. At the same time, a sealing gasket is arranged on the inner side of one end of the valve body where the valve port is arranged, and multiple guide ports corresponding to the valve ports are arranged on the sealing gasket. The gap between the valve core and the valve body is sealed by the sealing gasket. When the valve core rotates a preset angle, the correspondence between the flow channel and the valve port on the valve body is switched to control the opening / closing of the corresponding valve port and / or adjust the connection between one valve port and another valve port, so as to realize the switching of the flow path connection mode and meet the functional requirements of the pipeline switching of the thermal management system of new energy vehicles.

[0021] 2. The multi-way valve with end face sealing provided by the utility model has valve ports distributed along the circumference of the valve body, and a sealing gasket is arranged between the end of the valve body and the end of the valve core. On the one hand, it can prevent non-functional liquid cross-linking between the valve ports and ensure that the multi-way valve with end face sealing has good sealing performance. On the other hand, compared with the method of arranging the valve ports on the side wall of the valve body, the axial dimension of the valve body is small, which can reduce the installation height of the end face seal and reduce its requirements for the installation space.

[0022] 3. The multi-way valve with end face sealing provided by the utility model has a sealing gasket embedded in the inner side of one end of the valve body where the valve port is set, which can provide support and limit for the sealing gasket through the valve body and reduce the contact area between the valve core and the sealing gasket, thereby reducing the resistance to the rotation of the valve core and reducing the probability of the sealing gasket being deformed when the valve core rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] In the attached picture:

[0025] Figure 1 This is a schematic diagram of the exploded structure of a multi-way valve with end face sealing according to one embodiment of the utility model;

[0026] Figure 2 The utility model is a schematic diagram of a cross-sectional structure of a multi-way valve with end face sealing according to an embodiment of the present invention.

[0027] Marks and corresponding parts names in the attached drawings:

[0028] 10-valve body, 11-valve cavity, 12-valve port, 13-valve cover, 14-first sealing ring, 15-second sealing ring, 20-valve core, 21-flow channel port, 22-mounting hole, 30-sealing gasket, 31-flow guide port, 40-compression spring, 50-spring cover, 60-mounting sealing gasket. DETAILED DESCRIPTION

[0029] In order to make the purpose, 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 in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the embodiments of the present application, the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is conventionally placed when in use, or is the orientation or position relationship conventionally understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] Example

[0033] Combination Figure 1 and Figure 2 The present embodiment provides a multi-way valve with end face sealing, comprising: a valve body 10, a valve cavity 11 is arranged in the middle of the valve body 10, a plurality of valve ports 12 are distributed circumferentially at one end of the valve body 10, and each of the valve ports 12 is communicated with the valve cavity 11; a valve core 20, the valve core 20 is arranged in the valve cavity 11, a driving shaft of the valve core 20 is sealed and rotatably connected to the valve body 10, the valve core 20 is provided with a plurality of flow channels, and a flow channel port 21 of each of the flow channels is directly opposite to the valve port 12 arranged on the valve body 10. 2; a sealing gasket 30, the sealing gasket 30 is embedded in the inner side of one end of the valve body 10 where the valve port 12 is provided, the sealing gasket 30 can seal the gap between the valve core 20 and the valve body 10, and the sealing gasket 30 is provided with a plurality of guide ports 31, each of the guide ports 31 corresponds to each of the valve ports 12 one by one; wherein, after the valve core 20 is rotated by a set angle, the flow channels on the valve core 20 can connect the corresponding valve ports 12 according to the corresponding flow path connection mode.

[0034] It is understandable that, in order to facilitate the processing of the valve cavity 11, the valve cavity 11 is usually made into a cylindrical shape, and the corresponding valve core 20 is also a cylindrical shape. A driving shaft is arranged at one end of the valve core 20 so as to facilitate the transmission connection between the output shaft of the driving motor and the valve core 20.

[0035] At the same time, a valve cover 40 is sealedly connected to one end of the valve body 10, and the valve core 20 is rotatably connected to 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 sealed and connected to the valve body 10. That is, in this embodiment, the valve body 10 is adapted to be equipped with the valve cover 40, and the valve cover 40 sealing cover is arranged at one end of the valve cavity 11 away from the valve port 12, so as to facilitate the assembly of the multi-way valve.

[0036] Specifically, a first sealing ring 14 is disposed between the valve cover 40 and the valve cavity 11 , and the first sealing ring 14 is used to seal the gap between the valve cover 40 and the main body of the valve body 10 to prevent the valve body 10 from leaking.

[0037] It should be understood that the driving shaft of the valve core 20 is rotatably connected to the valve cover 40, and a second sealing ring 15 is provided on the outer sleeve of the driving shaft of the valve core 20. The second sealing ring 15 is used for the gap between the driving shaft of the valve core 20 and the valve cover 40 to achieve the sealing and rotatable connection between the valve core 20 and the valve body 10 to avoid leakage of the valve cover 40.

[0038] On this basis, a compression spring 50 is arranged in the valve cavity 11, and the compression spring 50 is arranged between the valve cover 40 and the valve core 20. The compression spring 50 can press the sealing gasket 30 against the cavity wall of the valve cavity 11 through the valve core 20, so that the sealing gasket 30 can work normally and ensure the sealing of the multi-way valve during use.

[0039] Generally speaking, a mounting hole 22 is provided at one end of the valve core 20, and the mounting hole 22 is coaxially arranged with the valve core 20. One end of the compression spring 50 is inserted into the mounting hole 22 to avoid radial displacement of the compression spring 50 during use, thereby further ensuring the reliability of the sealing of the multi-way valve during use.

[0040] In this embodiment, a spring cover is further provided in the valve chamber 11, and the spring cover is changed to the mounting hole 22 to seal the compression spring 50 through the spring cover, so as to limit and protect the compression spring 50 through the spring cover, thereby further improving the reliability of the compression spring 50.

[0041] In addition, a mounting sealing gasket is also provided at one end of the valve body 10 where the valve port 12 is provided. The mounting sealing gasket is used to seal the gap between the valve body 10 and the component on which the valve body 10 is installed, and the mounting sealing gasket is provided with a plurality of flow holes, each of the flow holes corresponding one-to-one to each of the valve ports 12, so as to directly connect the valve port 12 with the pipeline on the component on which the valve body 10 is installed.

[0042] The position and size of the flow channel on the valve core 20 are determined according to the position of the valve port 12, the use of the multi-way valve with end face sealing, and the functional requirements for the control of the flow channel. In this embodiment, the valve port 12 is provided with 5 to form a five-way valve to ensure that the multi-way valve can meet the use requirements of the thermal management system of new energy vehicles.

[0043] It should be noted that the sealing gasket 30 is usually made of rubber material to ensure that it has sufficient sealing performance, such as EPDM rubber, nitrile rubber, fluorosilicone rubber, etc. In this embodiment, the side of the sealing gasket 30 facing the valve core 20 is covered with a polytetrafluoroethylene layer to reduce the resistance of the valve core 20 when the sealing gasket 30 rotates relative to the sealing gasket 30, and can further avoid deformation of the sealing gasket 30 when the valve core 20 rotates.

[0044] In summary, the present embodiment provides a multi-way valve with end face sealing, wherein a valve core 20 is arranged in the valve body 10, and a plurality of flow channels are arranged on the valve core 20, and a plurality of valve ports 12 are arranged at one end of the valve body 10, and a sealing gasket 30 is arranged on the inner side of one end of the valve body 10 where the valve port 12 is arranged, and a plurality of guide ports 31 corresponding to the valve ports 12 are arranged on the sealing gasket 30, and the gap between the valve core 20 and the valve body 10 is sealed by the sealing gasket 30. When the valve core 20 rotates by a preset angle, the correspondence between the flow channel on the valve body 10 and the valve port 12 is switched to control the opening / closing of the corresponding valve port 12 and / or adjust the connection between one valve port 12 and another valve port 12, thereby realizing the switching of the flow path connection mode and meeting the functional requirements of pipeline switching of the thermal management system of new energy vehicles.

[0045] Among them, the valve ports 12 are distributed along the circumference of the valve body 10, and a sealing gasket 30 is set between the end of the valve body 10 and the end of the valve core 20. On the one hand, it can prevent non-functional liquid from flowing between the valve ports 12, and ensure that the multi-way valve with the entire end face seal has good sealing performance. On the other hand, compared with the method of setting the valve ports 12 on the side wall of the valve body 10, the axial size of the valve body 10 is small, which can reduce the installation height of the end face seal and reduce its requirements for installation space. The sealing gasket 30 is embedded in the inner side of one end of the valve body 10 where the valve port 12 is set, and the sealing gasket 30 can be supported and limited by the valve body 10, and the contact area between the valve core 20 and the sealing gasket 30 can be reduced. In addition, the side of the sealing gasket 30 facing the valve core 20 is covered with a polytetrafluoroethylene layer, thereby reducing the resistance to the rotation of the valve core 20 and reducing the probability of the valve core 20 causing the sealing gasket 30 to deform when the valve core 20 rotates.

[0046] Therefore, the multi-way valve with end face seal provided in the present embodiment can prevent non-functional liquid cross-talk between the valve ports 12 while realizing flow path on-off switching, thereby improving the sealing stability and reliability of the multi-way valve under complex working conditions, thereby reducing the leakage failure rate of the multi-way valve and reducing technical failures of the water path integrated module caused by leakage of the multi-way valve, thereby meeting the use requirements of the thermal management system of new energy vehicles.

[0047] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A multi-way valve with end face sealing, characterized in that: include: A valve body (10), wherein a valve cavity (11) is provided in the middle of the valve body (10), and a plurality of valve ports (12) are distributed circumferentially at one end of the valve body (10), and each of the valve ports (12) is connected to the valve cavity (11); A valve core (20), the valve core (20) being arranged in the valve cavity (11), a driving shaft of the valve core (20) being sealed and rotatably connected to the valve body (10), the valve core (20) being provided with a plurality of flow channels, a flow channel opening (21) of each of the flow channels being arranged opposite to one end of the valve body (10) where the valve opening (12) is arranged; a sealing gasket (30), the sealing gasket (30) being embedded inside one end of the valve body (10) where the valve port (12) is provided, the sealing gasket (30) being capable of sealing a gap between the valve core (20) and the valve body (10), and the sealing gasket (30) being provided with a plurality of guide ports (31), each of the guide ports (31) corresponding to each of the valve ports (12) one by one; Wherein, after the valve core (20) is rotated to a set angle, the flow channels on the valve core (20) can all be connected to the corresponding valve ports (12) according to the corresponding flow path connection mode.

2. The multi-way valve with end face sealing according to claim 1, characterized in that: The valve body (10) is adapted to be equipped with a valve cover (13), and the valve cover (13) is a sealing cover arranged at one end of the valve cavity (11) away from the valve port (12).

3. The multi-way valve with end face sealing according to claim 2, characterized in that: A first sealing ring (14) is provided between the valve cover (13) and the valve chamber (11), and the first sealing ring (14) is used to seal the gap between the valve cover (13) and the main body of the valve body (10).

4. The multi-way valve with end face sealing according to claim 2, characterized in that: The driving shaft of the valve core (20) is rotatably connected to the valve cover (13), and a second sealing ring (15) is provided on the outer sleeve of the driving shaft of the valve core (20). The second sealing ring (15) is used for the gap between the driving shaft of the valve core (20) and the valve cover (13).

5. The multi-way valve with end face sealing according to claim 2, characterized in that: A compression spring (40) is arranged in the valve cavity (11); the compression spring (40) is arranged between the valve cover (13) and the valve core (20); the compression spring (40) can press the sealing gasket (30) onto the cavity wall of the valve cavity (11) through the valve core (20).

6. The multi-way valve with end face sealing according to claim 5, characterized in that: A mounting hole (22) is provided at one end of the valve core (20), the mounting hole (22) is coaxially arranged with the valve core (20), and one end of the compression spring (40) is inserted into the mounting hole (22).

7. The multi-way valve with end face sealing according to claim 6, characterized in that: A spring cover (50) is also provided in the valve cavity (11), and the spring cover (50) is re-arranged on the mounting hole (22) so as to cover the compression spring (40) through the spring cover (50).

8. The multi-way valve with end face sealing according to claim 1, characterized in that: An installation sealing gasket (60) is also provided at one end of the valve body (10) where the valve port (12) is provided. The installation sealing gasket (60) is used to seal the gap between the valve body (10) and the component on which the valve body (10) is installed. The installation sealing gasket (60) is provided with a plurality of flow holes, each of which corresponds one to one to each of the valve ports (12).

9. The multi-way valve with end face sealing according to claim 1, characterized in that: The valve ports (12) are provided in five numbers.

10. The multi-way valve with end face sealing according to any one of claims 1 to 9, characterized in that: A side of the sealing gasket (30) facing the valve core (20) is covered with a polytetrafluoroethylene layer.

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