One-way valve structure

Abstract

The utility model provides a one-way valve structure. The one-way valve structure comprises a valve body, a valve seat, a first magnetic attraction part, a second magnetic attraction part and an elastic part. The valve body is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are communicated to form a liquid flow channel; one side of the valve seat is movably arranged in the valve body, is positioned in the liquid flow channel and is used for opening or closing the liquid outlet or the liquid inlet; the first magnetic attraction piece is fixedly arranged in the valve body; the second magnetic attraction piece is fixedly arranged at the end part of one side of the valve seat and corresponds to the first magnetic attraction piece; the other end of the elastic piece is connected with the second magnetic piece; the other side of the valve seat is arranged close to the liquid outlet, attraction magnetic force is generated between the first magnetic attraction piece and the second magnetic attraction piece, and the attraction magnetic force is larger than compression force of the elastic piece and used for compressing the elastic piece. Or, the other side of the valve seat is arranged close to the liquid inlet, repulsive magnetic force is generated between the first magnetic attraction piece and the second magnetic attraction piece, and the repulsive magnetic force is larger than the stretching force of the elastic piece and used for stretching the elastic piece.

Description

Technical Field

[0001] This utility model relates to the field of one-way valve technology, and more specifically, to a one-way valve structure. Background Technology

[0002] As an important component in automotive thermal management modules, the one-way valve structure mainly plays the role of liquid control and system protection. In the development of automotive thermal management modules, the refrigerant flow resistance and coolant flow resistance play an important role in the energy consumption of the entire thermal management module. Due to its structural layout, the one-way valve in the current thermal management module has an internal elastic element whose compressive or tensile force increases with the increase of liquid flow until it reaches its maximum at a limit state. Excessive compressive or tensile force of the elastic element increases the energy consumption required for the liquid to push the valve seat, thus increasing the flow resistance and mechanical energy loss.

[0003] Therefore, how to provide a one-way valve structure that reduces liquid flow resistance has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a one-way valve structure that can reduce the flow resistance when liquid flows.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A one-way valve structure includes a valve body, a valve seat, a first magnetic attractor, a second magnetic attractor, and an elastic element. The valve body has an inlet and an outlet, which are connected to form a liquid flow channel. One side of the valve seat is movably disposed within the valve body and located in the liquid flow channel, for opening or closing the outlet or the inlet. The first magnetic attractor is fixedly disposed within the valve body. The second magnetic attractor is fixedly disposed at one end of the valve seat and is disposed corresponding to the first magnetic attractor. One end of the elastic element is connected to the first magnetic attractor, and the other end is connected to the second magnetic attractor. Alternatively, the other side of the valve seat is disposed near the outlet, where the first and second magnetic attractors generate an attractive magnetic force, which is greater than the compressive force of the elastic element, for compressing the elastic element. Or, the other side of the valve seat is disposed near the inlet, where the first and second magnetic attractors generate a repulsive magnetic force, which is greater than the tensile force of the elastic element, for stretching the elastic element.

[0007] Furthermore, on the other side of the valve seat, near the liquid outlet, the pressure of the liquid flowing into the liquid channel from the inlet and the tensile force of the elastic element are greater than the magnetic attraction force.

[0008] Furthermore, the other side of the valve seat is located near the liquid inlet, and the pressure of the liquid flowing into the liquid channel from the liquid inlet and the compressive force of the elastic element are greater than the repulsive magnetic force.

[0009] Furthermore, the first magnetic attractor includes a first magnetic attractor portion and a second magnetic attractor portion connected to each other, the first magnetic attractor portion and the second magnetic attractor portion being arranged perpendicularly between them, and one end of the elastic member being sleeved on the first magnetic attractor portion and connected to the second magnetic attractor portion.

[0010] Furthermore, the valve seat includes a guide rod, and a second magnetic element is fixed to the end of the guide rod near the first magnetic element.

[0011] Furthermore, the valve body is provided with a mounting cavity corresponding to the guide rod, and the mounting cavity is formed by the inner surface of the valve body being recessed in the direction away from the guide rod.

[0012] Furthermore, the first magnetic attractor is fixed inside the mounting cavity, and the end of the guide rod with the second magnetic attractor is movably disposed inside the mounting cavity to drive the second magnetic attractor to move closer to or further away from the first magnetic attractor.

[0013] Furthermore, the other side of the valve seat is located near the liquid outlet, and the valve body is provided with a limiting part at the liquid outlet. The valve seat has sealing parts on both sides, and the limiting part abuts against the side of the sealing part near the liquid inlet.

[0014] Furthermore, the one-way valve structure includes a seal, which is disposed between the sealing part and the limiting part.

[0015] Furthermore, the other side of the valve seat is located near the liquid inlet, and the valve body is provided with a support part at the liquid inlet. The valve seat has sealing parts on both sides, and the support part abuts against the side of the sealing part away from the liquid outlet.

[0016] Furthermore, the one-way valve structure includes a seal, which is disposed between the sealing part and the support part.

[0017] The beneficial effects of this utility model embodiment are:

[0018] In this embodiment, a first magnetic suction member and a second magnetic suction member are provided, and an elastic member is sandwiched between the first magnetic suction member and the second magnetic suction member. When the elastic member is positioned on the other side of the valve seat near the liquid outlet, the magnetic attraction between them compresses the elastic member. When the elastic member is positioned on the other side of the valve seat near the liquid inlet, the magnetic repulsion between them stretches the elastic member. When the liquid outlet or the liquid inlet is opened, the elastic member generates a rebound force that does positive work, thereby reducing the resistance to the pressure of the liquid and thus reducing the flow resistance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly described below.

[0020] Figure 1 This is a schematic diagram of a one-way valve structure in the closed state, as shown in an embodiment of this application.

[0021] Figure 2 As shown in one embodiment of this application Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a schematic diagram of the one-way valve structure in the closed state, as shown in another embodiment of this application;

[0023] Figure 4 This is a schematic diagram of a one-way valve structure in an intermediate state, as shown in one embodiment of this application;

[0024] Figure 5 As shown in one embodiment of this application Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 This is a schematic diagram of a one-way valve structure in the fully open state, as shown in an embodiment of this application.

[0026] Figure 7 As shown in one embodiment of this application Figure 6 Enlarged view of point C in the middle.

[0027] Reference numerals: Valve body 1; Outlet 11; Inlet 12; Mounting cavity 13; First mounting cavity 131; Second mounting cavity 132; Limiting part 15; Liquid flow channel 14; Valve seat 2; Guide rod 21; Sealing part 22; First magnetic attracting element 3; First magnetic attracting part 31; Second magnetic attracting part 32; Second magnetic attracting element 4; Elastic element 5; Sealing element 6. Detailed Implementation

[0028] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0030] See Figure 1 -6. This application provides a one-way valve structure, including a valve body 1, a valve seat 2, a first magnetic attracting element 3, a second magnetic attracting element 4, and an elastic element 5.

[0031] The valve body 1 has an inlet 12 and an outlet 11, and the inlet 12 and outlet 11 are connected to form a liquid flow channel 14.

[0032] One side of the valve seat 2 is movably disposed inside the valve body 1 and located in the liquid flow channel 14, for opening or closing the liquid outlet 11 or the liquid inlet 12.

[0033] The first magnetic suction element 3 is fixedly installed inside the valve body 1.

[0034] The second magnetic suction member 4 is fixedly disposed at one end of the valve seat 2 and is disposed corresponding to the first magnetic suction member 3.

[0035] One end of the elastic element 5 is connected to the first magnetic element 3, and the other end of the elastic element 5 is connected to the second magnetic element 4.

[0036] The valve seat 2 is located on the other side near the liquid outlet 11. The first magnetic suction element 3 and the second magnetic suction element 4 generate a magnetic attraction force, which is greater than the compressive force of the elastic element 5, and is used to compress the elastic element 5.

[0037] Alternatively, the other side of the valve seat 2 is located near the liquid inlet 12 (not shown in the figure), and a repulsive magnetic force is generated between the first magnetic attractor 3 and the second magnetic attractor 4. The repulsive magnetic force is greater than the tensile force of the elastic member 5, which is used to stretch the elastic member 5.

[0038] In this embodiment, a first magnetic absorbing element 3, a second magnetic absorbing element 4, and an elastic element 5 are provided. The elastic element 5 is positioned between the first magnetic absorbing element 3 and the second magnetic absorbing element 4. The elastic element 5 is compressed by the magnetic attraction between the first magnetic absorbing element 3 and the second magnetic absorbing element 4, or stretched by the magnetic repulsion between the first magnetic absorbing element 3 and the second magnetic absorbing element 4. This results in the elastic element 5 generating a positive rebound force when the liquid outlet 11 or the liquid inlet 12 is opened, which reduces the resistance to the pressure of the liquid and thus reduces the flow resistance.

[0039] In one embodiment, the working states of the one-way valve structure include a closed state, a working state, and a fully open state.

[0040] In one embodiment, the other end of the valve seat 2 is located near the liquid outlet 11. When liquid enters the one-way valve structure, the sum of the pressure of the liquid flowing into the liquid channel 14 from the liquid inlet 12 of the one-way valve structure and the tensile force of the elastic element 5 is greater than the magnetic attraction force.

[0041] In other words, when in the off state, such as Figure 1 As shown in Figure 3, when the magnetic attraction between the first magnetic element 3 and the second magnetic element 4 is greater than the compressive force of the elastic element 5, the elastic element 5 is in a compressed state.

[0042] In the intermediate state, such as Figure 4As shown in Figure 5, when the control valve seat 2 opens the outlet 11, and the sum of the liquid pressure and the tensile force of the elastic element 5 is greater than the magnetic attraction force, the valve seat 2 moves away from the first magnetic attraction element 3 due to the force, and begins to open the outlet 11. As the distance the valve seat 2 moves increases, the elastic element 5 generates a rebound force opposite to the compression force due to compression, and the liquid pressure acts on it. After the elastic element 5 returns to its free length, it generates a tensile force. The action of the tensile force and the liquid pressure causes the elastic element 5 to continue to stretch until it reaches the maximum tensile length of the elastic element 5, which enables the valve seat 2 and the inlet 12 to reach the maximum opening.

[0043] When fully open, such as Figure 6 As shown in Figure 7, the magnetic attraction between the first magnetic element 3 and the second magnetic element 4 decreases to almost zero when the elastic element 5 reaches its maximum stretch length, because the elastic element 5 is in a stretched state due to the pressure of the liquid.

[0044] During the above process, due to the arrangement of the first magnetic suction element 3 and the second magnetic suction element 4, the elastic element 5 generates a restoring force to restore the degree of freedom when the liquid flows in, that is, a force opposite to the compressive force. This restoring force does positive work when opening the outlet 11, assisting the liquid pressure to push the valve seat 2. At this time, only a small amount of liquid pressure is needed to push open the valve seat 2 that is blocked in the outlet 11, thus reducing the flow resistance. Moreover, due to the small flow resistance, the movement acceleration of the valve seat 2 is increased during the force process, thereby accelerating the speed at which the valve seat 2 opens the outlet 11.

[0045] In one embodiment, the other side of the valve seat 2 is located near the liquid outlet 11, and the valve body 1 is provided with a limiting part 15 at the liquid outlet 11. The valve seat 2 has a sealing part 22 on both sides, and the limiting part 15 abuts against the side of the sealing part 22 near the liquid inlet 12.

[0046] In one embodiment, the one-way valve structure further includes a sealing element 6, which is disposed between the blocking part 22 and the limiting part 15. When the one-way valve structure is in the closed state, the sealing element 6 is in a compressed state to achieve the backflow prevention function.

[0047] In another embodiment, the other side of the valve seat 2 is located near the liquid inlet 12, and the pressure of the liquid flowing into the liquid channel 14 from the liquid inlet 12 and the compressive force of the elastic member 5 are greater than the repulsive magnetic force.

[0048] In other words, when in the closed state, the elastic element 5 is stretched because the repulsive magnetic force between the first magnetic element 3 and the second magnetic element 4 is greater than the tensile force of the elastic element 5.

[0049] In the intermediate state, that is, when the control valve seat 2 opens the liquid inlet 12, that is, when the sum of the liquid pressure and the compressive force of the elastic element 5 is greater than the repulsive magnetic force, the valve seat 2 moves towards the first magnetic attractor 3 due to the force, and begins to open the liquid inlet 12. As the distance the valve seat 2 moves increases, the elastic element 5 generates a rebound force opposite to the stretching force due to the stretching force and the liquid pressure, which restores the elastic element 5 to its free length. After that, a compressive force is generated. The simultaneous action of the compressive force and the liquid pressure causes the elastic element 5 to continue to compress until it reaches the maximum compressed length of the elastic element 5, which enables the valve seat 2 and the liquid inlet 12 to reach the maximum opening.

[0050] During the above process, due to the arrangement of the first magnetic suction element 3 and the second magnetic suction element 4, the elastic element 5 generates a restoring force to restore the degree of freedom when the liquid flows in, that is, a force opposite to the tensile force. This restoring force does positive work when the liquid inlet 12 is opened, assisting the liquid pressure to push the valve seat 2. At this time, only a small amount of liquid pressure is needed to push open the valve seat 2 that is blocked in the liquid inlet 12, thus reducing the flow resistance. Since the flow resistance is small, the valve seat 2 can increase its movement acceleration during the force process, thereby accelerating the opening speed of the liquid inlet 12 and improving the working efficiency.

[0051] When fully open, the repulsive magnetic force between the first magnetic attractor 3 and the second magnetic attractor 4 is reduced to almost zero when the elastic member 5 reaches its maximum compression length, because the elastic member 5 is compressed due to the pressure of the liquid.

[0052] In another embodiment, the other side of the valve seat 2 is located near the liquid inlet 12, the valve body 1 is provided with a support at the liquid inlet 12, and the valve seat 2 is provided with a sealing part 22 on both sides. The support abuts against the side of the sealing part 22 away from the liquid outlet 11 to limit the position of the valve seat 2.

[0053] The one-way valve structure also includes a sealing element 6, which is disposed between the sealing part 22 and the support part. When the one-way valve structure is in the closed state, it further seals the inlet 12, so that the sealing element 6 is in a compressed state to achieve the backflow prevention function.

[0054] In one embodiment, such as Figure 2 , 5 As shown in Figures 7 and 8, the first magnetic attracting member 3 includes a first magnetic attracting part 31 and a second magnetic attracting part 32 connected to each other. The first magnetic attracting part 31 and the second magnetic attracting part 32 are arranged vertically between each other. One end of the elastic member 5 is sleeved on the first magnetic attracting part 31 and connected to the second magnetic attracting part 32.

[0055] In another embodiment, the first magnetic attractor 3 is an integrally formed structure, and the first magnetic attractor 3 is configured as a T-shaped structure or the elastic member 5 is sleeved on the T-shaped structure and connected to the side of the T-shaped structure near the second magnetic attractor 4.

[0056] In this embodiment, by sleeved the elastic member 5 on the first magnetic suction part 31, the compression length of the elastic member 5 is limited, which can avoid the problem that the elastic member 5 cannot rebound due to excessive compression or cannot return to its free length due to insufficient rebound force, thereby improving the stability of the structure.

[0057] In one embodiment, the valve seat 2 includes a guide rod 21, and a second magnetic member 4 is fixed to the end of the guide rod 21 near the first magnetic member 3.

[0058] The valve seat 2 is provided with a mounting cavity 13 corresponding to the guide rod 21. The mounting cavity 13 is formed by the inner surface of the valve body 1 being recessed in a direction away from the guide rod 21.

[0059] The first magnetic attractor 3 is fixed inside the mounting cavity 13, and the end of the guide rod 21 with the second magnetic attractor 4 is movably disposed inside the mounting cavity 13.

[0060] When a magnetic attraction force is generated between the first magnetic attractor 3 and the second magnetic attractor 4, the guide rod 21 is used to drive the second magnetic attractor 4 to move away from the first magnetic attractor 3.

[0061] When a repulsive magnetic force is generated between the first magnetic attractor 3 and the second magnetic attractor 4, the guide rod 21 is used to drive the second magnetic attractor 4 to move closer to the first magnetic attractor 3.

[0062] In one embodiment, the outer diameter of the guide rod 21 located in a portion of the mounting cavity 13 is adapted to the inner diameter of the mounting cavity 13.

[0063] In another embodiment, such as Figure 3 As shown, the mounting cavity 13 may include a first mounting cavity 131 and a second mounting cavity 132 that are connected to each other. The inner diameter of the first mounting cavity 131 is smaller than the inner diameter of the second mounting cavity 132. The guide rod 21 includes a mounting part and a support part that are connected to each other. The mounting part is used to fix the second magnetic suction member 4, and the mounting part is adapted to the first mounting cavity 131, and the support part is adapted to the second mounting cavity 132.

[0064] In this embodiment, by setting the first mounting cavity 131 and the second mounting cavity 132 as mounting cavities with different inner diameters, and setting the inner diameter of the first mounting cavity 131 to be smaller than the inner diameter of the second mounting cavity 132, the flow of liquid into the mounting cavity 13 can be reduced, thereby affecting the movement of the first magnetic member 3, the second magnetic member 4, and the elastic member 5.

[0065] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0066] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0067] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A one-way valve structure, characterized in that, include: The valve body has an inlet and an outlet, and the inlet and outlet are connected to form a liquid flow channel; A valve seat, one side of which is movably disposed in the valve body and located in the liquid flow channel, is used to open or close the liquid outlet or the liquid inlet; The first magnetic suction element is fixedly disposed in the valve body; The second magnetic attractor is fixedly disposed at one end of the valve seat and is disposed corresponding to the first magnetic attractor; An elastic element, one end of which is connected to the first magnetic element, and the other end of which is connected to the second magnetic element; The other side of the valve seat is located near the liquid outlet. The first magnetic attractor and the second magnetic attractor generate a magnetic attraction force, and the magnetic attraction force is greater than the compressive force of the elastic element, which is used to compress the elastic element. Alternatively, the other side of the valve seat is located near the liquid inlet, and a repulsive magnetic force is generated between the first magnetic attractor and the second magnetic attractor. The repulsive magnetic force is greater than the tensile force of the elastic element, and is used to stretch the elastic element.

2. The one-way valve structure according to claim 1, characterized in that, The other side of the valve seat is located near the liquid outlet, and the sum of the pressure of the liquid flowing into the liquid channel from the liquid inlet and the tensile force of the elastic element is greater than the magnetic attraction force.

3. The one-way valve structure according to claim 1, characterized in that, The other side of the valve seat is located near the liquid inlet, and the sum of the pressure of the liquid flowing into the liquid channel from the liquid inlet and the compressive force of the elastic element is greater than the repulsive magnetic force.

4. The one-way valve structure according to claim 1, characterized in that, The first magnetic attractor includes a first magnetic attractor portion and a second magnetic attractor portion connected to each other. The first magnetic attractor portion and the second magnetic attractor portion are arranged perpendicularly between each other. One end of the elastic member is sleeved on the first magnetic attractor portion and connected to the second magnetic attractor portion.

5. The one-way valve structure according to claim 1, characterized in that, The valve seat includes a guide rod, and the second magnetic element is fixed to the end of the guide rod near the first magnetic element.

6. The one-way valve structure according to claim 5, characterized in that, The valve body is provided with a mounting cavity corresponding to the guide rod, and the mounting cavity is formed by the inner surface of the valve body being recessed in a direction away from the guide rod.

7. The one-way valve structure according to claim 6, characterized in that, The first magnetic attractor is fixed in the mounting cavity, and the end of the guide rod with the second magnetic attractor is movably disposed in the mounting cavity. It is used to drive the second magnetic attractor to move away from the first magnetic attractor when an attractive magnetic force is generated between the first magnetic attractor and the second magnetic attractor, or to drive the second magnetic attractor to move closer to the first magnetic attractor when a repulsive magnetic force is generated between the first magnetic attractor and the second magnetic attractor.

8. The one-way valve structure according to claim 1, characterized in that, The valve seat is located on the other side near the liquid outlet. The valve body is provided with a limiting part at the liquid outlet. The valve seat has sealing parts on both sides. The limiting part abuts against the side of the sealing part near the liquid inlet.

9. The one-way valve structure according to claim 8, characterized in that, The one-way valve structure includes a sealing element, which is disposed between the blocking part and the limiting part.

10. The one-way valve structure according to claim 1, characterized in that, The valve seat is located on the other side near the liquid inlet. The valve body is provided with a support at the liquid inlet. The valve seat has sealing parts on both sides. The support abuts against the side of the sealing part away from the liquid outlet.

11. The one-way valve structure according to claim 10, characterized in that, The one-way valve structure includes a sealing element, which is disposed between the sealing part and the supporting part.

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