Double-sided sealing structure of multi-channel electromagnetic water valve

Abstract

The utility model relates to a double-sided sealing structure of a multi-channel electromagnetic water valve for a new energy automobile thermal management system, which comprises a valve casing and a valve core, the rotatable valve core is arranged in the valve casing, a valve cover is arranged at the opening end of the valve casing, a rotating shaft for driving the valve core to rotate extends out of the valve cover from the center of the valve cover, and a plurality of valve ports are arranged on the valve casing. The valve element is provided with a plurality of internal channels, the internal channels and the valve ports are connected or disconnected through rotation of the valve element, a sealing gasket is arranged between the valve shell and the valve element, the valve ports are arranged on one side of the valve shell in an array mode, the sealing gasket is in an arc shape, and the side, making contact with the valve element, of the sealing gasket is a smooth arc face. A plurality of axial grooves are formed in the face, making contact with the inner side of the valve shell, of the sealing gasket, and protruding edges inserted into part of the axial grooves are arranged on the inner wall of the valve shell. According to the scheme, the position of the sealing gasket cannot move in the circumferential direction, sealing can be tighter through the pressure difference of the valve element, and the sealing structure can be used in a heat management system of a new energy automobile.

Description

Technical Field

[0001] The utility model relates to a water valve device for a thermal management system of a new energy vehicle, in particular to a sealing device between a valve core and a valve housing of a multi-channel water valve. Background Art

[0002] In the prior art, electric vehicles need to adopt a thermal management system for effective management during winter heating, summer cooling, and the use of battery packs, so that electric vehicles have technical effects such as high comfort, energy saving, high thermal efficiency, and long battery life.

[0003] In the Chinese patent database, a thermal management system assembly of a multi-channel electronic water valve is disclosed, and its publication number is CN116653544A; publication date: 20230829. The thermal management system assembly of the multi-channel electronic water valve includes: a coolant system, which includes a multi-way valve, a battery cooler, a heating component, a radiator and a connecting pipeline. The multi-way valve is configured with a first connection port, a second connection port, a third connection port, a fourth connection port, a fifth connection port, a sixth connection port, a seventh connection port, an eighth connection port and a ninth connection port. The connecting pipeline is respectively connected to the sixth connection port and the seventh connection port. The battery cooler is configured with a first port, a second port, a third port and a fourth port. The first port is connected to the second connection port, and the heating component is respectively connected to the third connection port. The radiator is provided with a first nozzle and a second nozzle, the first nozzle is connected to the ninth nozzle, and the second nozzle is connected to the eighth nozzle, for heat exchange between the coolant system and the outside world; the battery system is configured to be connected to the fourth nozzle and the fifth nozzle, respectively, for heat exchange with the coolant system; the electric drive system is configured to be connected to the first nozzle and the eighth nozzle, respectively; the air conditioning system includes an air conditioning component and a front cabin heat exchanger, the air conditioning component is connected to the third port and the fourth port, respectively, for heat exchange with the passenger compartment and / or the coolant system, and the front cabin heat exchanger is connected to the air conditioning component, for heat exchange between the air conditioning component and the outside world. The specific structure of the multi-way valve is not disclosed in this patent.

[0004] Chinese patent with publication number CN217502675U: Multi-channel valve, its publication date is 20220927; the multi-channel valve includes a valve housing, a valve core and a fixed frame. The valve housing has a valve cavity and N fluid interfaces connected to the valve cavity, N ≥ 3. The fixed frame has a central hole extending in the axial direction, the fixed frame extends into the valve cavity, and the lower part of the valve core can be rotatably extended into the central hole. The side wall of the fixed frame is provided with N through holes corresponding to the N fluid interfaces respectively, and a flexible annular seal is fixed around the orifice of each through hole. The annular seal has a first annular sealing portion for contacting and sealing with the side wall of the valve cavity and a second annular sealing portion for contacting and sealing with the valve core, and the first annular sealing portion surrounds one end of the corresponding fluid interface adjacent to the valve cavity. The annular seal of the device is arranged one-to-one with each fluid interface, which will result in a large number of seals, difficulty in installation and fixing, and difficulty in achieving comprehensive and effective sealing. Utility Model Content

[0005] The utility model aims to provide a double-sided sealing structure of a multi-channel electromagnetic water valve, so that the sealing element can be better sealed between the valve housing and the valve core through the pressure difference of the fluid.

[0006] The purpose of the utility model is achieved as follows: a double-sided sealing structure of a multi-channel electromagnetic water valve, including a valve housing and a valve core, a rotatable valve core is arranged in the valve housing, a valve cover is arranged at the open end of the valve housing, a rotating shaft for driving the valve core to rotate extends from the center of the valve cover to the outside of the valve cover, a plurality of valve ports are arranged on the valve housing, a plurality of internal channels are arranged on the valve core, the internal channels and the valve ports are connected or disconnected by rotating the valve core, a sealing gasket is arranged between the valve housing and the valve core, the valve ports are arranged in an array on one side of the valve housing, the sealing gasket is in an arc shape, the side of the sealing gasket in contact with the valve core is a smooth arc surface, a side of the sealing gasket in contact with the inner side of the valve housing is provided with a plurality of axial grooves, and a convex ridge inserted into the axial groove of the insert portion is provided on the inner wall of the valve housing.

[0007] When the utility model is working, each valve port is connected to an external pipeline, and the valve ports are connected or disconnected through the internal channel by rotating the valve core, so that a variety of different working modes can be formed. The side of the sealing gasket in contact with the valve core is a smooth arc surface, so that the valve core can be easily rotated. The cooperation of the axial groove and the convex ridge makes the sealing gasket fixed and will not move circumferentially. When some valve ports are connected, the water at the connected position can be depressurized, and the valve port connected to the inside will pass the water pressure to the inner cavity of the valve body. At this time, the cavity is full of pressure. For the valve core seal, the sealing gasket blocks part of the area where the water pressure acts on the valve core. The other side of the valve core opposite to the sealing gasket is subject to a larger water pressure area, so it is squeezed by the combined force of the sealing gasket, so that the valve core can better press the sealing gasket, achieve a better sealing effect, and thus make the seal more tight. Compared with the prior art, the beneficial effect of the utility model is that the sealing gasket will not move circumferentially, and the pressure difference of the valve core is used to make the seal tighter. The device can be used in the thermal management system of new energy vehicles.

[0008] Furthermore, the inner wall of the valve housing is provided with limit blocks at both ends of the sealing gasket in the circumferential direction. The limit blocks further limit the circumferential rotation of the valve core to prevent it from moving.

[0009] Furthermore, the valve core includes an upper valve core and a lower valve core that are linked to each other, the rotating shaft is connected to the upper valve core, a core shaft is provided at the center of the upper valve core and the lower valve core, and the upper valve core and the lower valve core are movably sleeved on the core shaft. There is a certain gap between the core shaft and the upper valve core and the lower valve core, thereby ensuring that the upper valve core and the lower valve core have a certain radial displacement under the action of the pressure difference, thereby realizing lateral sealing.

[0010] Furthermore, linkage blocks are respectively provided on the facing surfaces of the upper valve core and the lower valve core, and when the upper valve core rotates, the lower valve core is driven to rotate through the linkage blocks. The upper valve core rotates clockwise or counterclockwise, and when the linkage blocks are in contact, the two valve cores rotate simultaneously to achieve the conversion of the valve port. When the upper valve core rotates in the opposite direction, the linkage blocks are disengaged, and the upper valve core rotates alone, while the lower valve core remains stationary until the upper valve core rotates 360° in the opposite direction, and then the lower valve core can be driven to rotate from the other direction. The purpose of this scheme is to provide more application state options, such as realizing proportional regulation by rotating the upper valve core alone.

[0011] Furthermore, the upper valve core and the lower valve core are connected by radial partitions, axial partitions and circumferential partitions, the radial partitions are arranged perpendicular to the center line, the circumferential partitions are coaxial with the center line, the axial partitions are arranged radially, and the radial partitions, axial partitions and circumferential partitions are partially missing to form the internal channel. The partial missing forms the passage, and the position of the missing is determined according to the design requirements and can be varied.

[0012] Furthermore, axial protrusions are provided on both sides of the opening of the axial groove, and circumferential protrusions are provided on the outer circumference of the sealing gasket. The axial protrusions and circumferential protrusions are in a grid shape, and holes corresponding to the valve ports are provided in the grid enclosed area on the sealing gasket. The axial protrusions and circumferential protrusions can better achieve the sealing of the valve port.

[0013] Furthermore, there are two axial protrusions and two circumferential protrusions corresponding to the periphery of each valve port. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural appearance diagram of the utility model.

[0015] Figure 2 It is the front view of the internal structure of the utility model.

[0016] Figure 3 It is a top view of the internal structure of the utility model.

[0017] Figure 4 for Figure 3 A partial enlarged view of middle A.

[0018] Figure 5 It is a schematic diagram of the structure of the utility model after the valve housing is removed.

[0019] Figure 6 for Figure 5 BB direction view.

[0020] Figure 7 for Figure 5 Schematic diagram of the corresponding three-dimensional structure.

[0021] Figure 8 Three-dimensional sealing gasket Figure 1 , showing its inner structure.

[0022] Fig. 9 Three-dimensional sealing gasket Figure 2 , showing its outer structure.

[0023] Fig.10 A cross-sectional view of the gasket.

[0024] Fig.11 It is a schematic diagram of the three-dimensional structure of the valve housing.

[0025] Fig.12 for Fig.11 The corresponding floor plan.

[0026] In the figure, 1 is a valve cover, 2 is a valve housing, 2a is a limit stopper, 2b is a ridge, 3 is a valve port, 4 is an upper valve core, 5 is a lower valve core, 5a is a radial partition, 5b is an axial partition, 5c is a circumferential partition, 6 is a core shaft, 7 is a sealing gasket, 7a is an axial groove, 7b is a circumferential protrusion, 7c is an axial protrusion, and 8 is a rotating shaft. DETAILED DESCRIPTION

[0027] like Figure 1-12 As shown, a double-sided sealing structure of a multi-channel electromagnetic water valve includes a valve housing 2 and a valve core. A rotatable valve core is arranged in the valve housing 2. A valve cover 1 is arranged at the open end of the valve housing 2. A rotating shaft 8 for driving the valve core to rotate extends from the center of the valve cover 1 to the outside of the valve cover 1. The rotating shaft 8 is transmission-connected with the electromagnetic driving mechanism. A plurality of valve ports 3 are arranged on the valve housing 2. A plurality of internal channels are arranged on the valve core. The internal channels are connected or disconnected with the valve ports 3 by rotating the valve core. A sealing gasket 7 is arranged between the valve housing 2 and the valve core. The sealing gasket 7 is provided with holes corresponding to the valve ports 3 one by one. The valve ports 3 are arranged in an array on one side of the valve housing 2. There are nine valve ports 3 in this embodiment. The sealing gasket 7 is in an arc shape. The side of the sealing gasket 7 in contact with the valve core is a smooth arc surface. The side of the sealing gasket 7 in contact with the inner side of the valve housing 2 is provided with a plurality of axial grooves 7a. The inner wall of the valve housing 2 is provided with a convex ridge 2b inserted into the axial groove 7a.

[0028] Furthermore, limit blocks 2a are provided on the inner wall of the valve housing 2 at both ends of the sealing gasket 7 in the circumferential direction. The limit blocks 2a further limit the circumferential rotation of the valve core to prevent it from moving.

[0029] Further, the valve core includes an upper valve core 4 and a lower valve core 5 which are linked to each other, a rotating shaft 8 is connected to the upper valve core 4, a core shaft 6 is provided at the center of the upper valve core 4 and the lower valve core 5, and the upper valve core 4 and the lower valve core 5 are movably sleeved on the core shaft 6. There is a certain gap between the core shaft 6 and the upper valve core 4 and the lower valve core 5, thereby ensuring that the upper valve core 4 and the lower valve core 5 have a certain radial displacement under the action of the pressure difference, thereby realizing lateral sealing.

[0030] Furthermore, linkage blocks are respectively provided on the facing surfaces of the upper valve core 4 and the lower valve core 5, and when the upper valve core 4 rotates, the linkage blocks push the lower valve core 5 to rotate. The upper valve core 4 rotates clockwise or counterclockwise, and when the linkage blocks are in contact, the two valve cores rotate at the same time to achieve the conversion of the valve port 3. When the upper valve core 4 rotates in the opposite direction, the linkage blocks are disengaged, and the upper valve core 4 rotates alone, and the lower valve core 5 remains stationary until the upper valve core 4 rotates 360° in the opposite direction, and then the lower valve core 5 can be driven to rotate from the other direction. The purpose of this scheme is to provide more application state options, such as realizing proportional regulation by rotating the upper valve core 4 alone.

[0031] Furthermore, the lower valve core 5 is formed by connecting radial partitions 5a, axial partitions 5b and circumferential partitions 5c, wherein the radial partitions 5a are arranged perpendicular to the center line, the circumferential partitions 5c are coaxial with the center line, and the axial partitions 5b are arranged radially, and the radial partitions 5a, the axial partitions 5b and the circumferential partitions 5c form an internal channel through partial missing. The upper valve core 4 and the lower valve core 5 have basically the same structure, and are also composed of radial partitions, axial partitions and circumferential partitions, but there are only two radial partitions, corresponding to two valve ports, while the lower valve core 5 has five radial partitions, corresponding to seven valve ports, one of which occupies a double area position, forming a large valve port, and the position of the partial missing is determined according to the design requirements, which can be ever-changing and is not limited to that shown in the figure of this embodiment.

[0032] Furthermore, axial protrusions 7c are provided on both sides of the opening of the axial groove 7a, and circumferential protrusions 7b are also provided on the outer circumference of the sealing gasket 7. The axial protrusions 7c and the circumferential protrusions 7b are in a grid shape, and holes corresponding to the valve ports 3 are provided in the grid enclosed area on the sealing gasket 7. The axial protrusions 7c and the circumferential protrusions 7b can better achieve the sealing of the valve port 3.

[0033] Furthermore, each valve port 3 has two corresponding axial protrusions 7c and two corresponding circumferential protrusions 7b around its periphery.

[0034] When the device is working, each valve port 3 is connected to an external pipeline. Through the rotation of the valve core, the valve ports 3 are connected or disconnected through the internal channel, and a variety of different working modes can be formed. The side of the sealing gasket 7 in contact with the valve core is a smooth arc surface, so that the valve core can be easily rotated. The cooperation of the axial groove 7a and the convex ridge 2b fixes the sealing gasket 7 and does not move the position circumferentially. When some valve ports 3 are connected, the water at the connected position can be depressurized, and the valve port connected to the inside will pass the water pressure to the inner cavity of the valve body. At this time, the cavity is full of pressure. For the valve core sealing, the sealing gasket blocks part of the area where the water pressure acts on the valve core. The other side of the valve core opposite to the sealing gasket is subject to a larger water pressure area, so it is subject to the combined force of squeezing the sealing gasket, so that the valve core can be more tightly pressed against the sealing gasket, achieving a better sealing effect, thereby making the sealing more tight. Its beneficial effect is that the sealing gasket 7 will not move the position circumferentially, and the pressure difference of the valve core is used to make the sealing more tight. The device can be used in the thermal management system of new energy vehicles.

[0035] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A double-sided sealing structure of a multi-channel electromagnetic water valve, comprising a valve housing and a valve core, a rotatable valve core is arranged in the valve housing, a valve cover is arranged at the open end of the valve housing, a rotating shaft driving the valve core to rotate extends from the center of the valve cover to the outside of the valve cover, a plurality of valve ports are arranged on the valve housing, a plurality of internal channels are arranged on the valve core, the internal channels and the valve ports are connected or disconnected by the rotation of the valve core, a sealing gasket is arranged between the valve housing and the valve core, Features: The valve ports are arranged in an array on one side of the valve housing, the sealing gasket is arc-shaped, the side of the sealing gasket in contact with the valve core is a smooth arc surface, the side of the sealing gasket in contact with the inner side of the valve housing is provided with a plurality of axial grooves, and the inner wall of the valve housing is provided with convex edges inserted into the axial grooves.

2. A double-sided sealing structure of a multi-channel electromagnetic water valve according to claim 1, Features: The inner wall of the valve housing is provided with limit blocks at both ends of the sealing gasket in the circumferential direction.

3. A double-sided sealing structure of a multi-channel electromagnetic water valve according to claim 1 or 2, Features: The valve core comprises an upper valve core and a lower valve core which are linked to each other. The rotating shaft is connected to the upper valve core. A core shaft is arranged at the center of the upper valve core and the lower valve core. The upper valve core and the lower valve core are movably sleeved on the core shaft.

4. A double-sided sealing structure of a multi-channel electromagnetic water valve according to claim 3, Features: The facing surfaces of the upper valve core and the lower valve core are respectively provided with linkage blocks, and when the upper valve core rotates, the linkage blocks push the lower valve core to rotate.

5. A double-sided sealing structure of a multi-channel electromagnetic water valve according to claim 3, Features: The upper valve core and the lower valve core are connected by radial partitions, axial partitions and circumferential partitions. The radial partitions are arranged perpendicular to the center line, the circumferential partitions are coaxial with the center line, and the axial partitions are arranged radially. The radial partitions, axial partitions and circumferential partitions form the internal channel through partial missing parts.

6. A double-sided sealing structure of a multi-channel electromagnetic water valve according to claim 3, Features: Axial protrusions are provided on both sides of the opening position of the axial groove, and a circumferential protrusion is also provided on the outer circumferential direction of the sealing gasket. The axial protrusion and the circumferential protrusion are in a grid shape, and holes corresponding to the valve ports are opened on the sealing gasket in the grid enclosed area.

7. A double-sided sealing structure of a multi-channel electromagnetic water valve according to claim 3, Features: There are two axial protrusions and two circumferential protrusions corresponding to the periphery of each valve port.

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