Electromagnetic valve and water purifier comprising same

Abstract

The utility model provides an electromagnetic valve and a water purifier comprising the same. The electromagnetic valve comprises a body and a moving part, the body is provided with a containing cavity with an inlet and an outlet, the inlet and the outlet are communicated through the containing cavity, the moving part is arranged in the containing cavity, moves in the containing cavity and is used for opening or closing the inlet or the outlet, and the inlet or the outlet is formed below the moving part. An inlet or an outlet arranged below the moving part is arranged on a first magnetic surface, a second magnetic surface is arranged on the surface, facing the first magnetic surface, of the moving part, and the first magnetic surface and the second magnetic surface are identical in magnetism so that the moving part can move in the direction away from the inlet or the outlet arranged below the moving part. Due to the fact that the first magnetic face and the second magnetic face are the same in magnetism, repulsive force can be generated between the moving part and the inlet or the outlet, the moving part tends to move away from the inlet or the outlet, contact pressure generated between the moving part and the inlet or the outlet is reduced, and the possibility that a biological membrane is generated between the moving part and the inlet or the outlet is reduced.

Description

Technical Field

[0001] This utility model relates to the field of water purification, and in particular to a solenoid valve and a water purifier containing the same. Background Technology

[0002] With people's increasing demands for quality of life and growing health awareness, water purifiers are being used more and more widely in daily life. On the one hand, the global shortage of water resources and the escalating water pollution problem have led to a growing concern among residents about drinking water safety. As an important device to ensure the safety of household drinking water, water purifiers can effectively remove impurities, heavy metals, bacteria, viruses, and other harmful substances from water, while retaining appropriate amounts of minerals to meet people's needs for healthy drinking water. On the other hand, continuous technological advancements have driven the upgrading of water purifier products. From simple filtration technology to the widespread application of various high-efficiency filtration technologies such as reverse osmosis, ultrafiltration, and nanofiltration, the performance and effectiveness of water purifiers have been significantly improved.

[0003] A sealing plate is located below the moving parts. When the water purifier is idle for a long time or stored in a warehouse for too long, a biofilm will form on the sealing plate. This biofilm causes adhesion between the sealing plate and the inlet or outlet located below it, making it impossible for the solenoid valve to open normally. Therefore, external force must be used to knock the valve body to open it. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect in the prior art that when a water purifier is idle for a long time or stored in a warehouse for too long, a biofilm will form on the sealing sheet, and the biofilm will cause the solenoid valve to fail to open normally. The present invention provides a solenoid valve and a water purifier containing the solenoid valve.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model discloses an electromagnetic valve, which includes a body and a moving part. The body has a receiving cavity with an inlet and an outlet, and the inlet and the outlet are connected through the receiving cavity. The moving part is disposed in the receiving cavity and moves within the receiving cavity to open or close the inlet or the outlet located below the moving part. The inlet or the outlet located below the moving part is provided with a first magnetic surface, and the surface of the moving part facing the first magnetic surface is provided with a second magnetic surface. The first magnetic surface and the second magnetic surface have the same magnetism, so that the moving part moves away from the inlet or the outlet located below the moving part.

[0007] In this solution, the above-mentioned structure is adopted. Since the first magnetic surface and the second magnetic surface have the same magnetism, a repulsive force will be generated between the moving part and the inlet or outlet. This will cause the moving part to move away from the inlet or outlet, reducing the contact pressure between the moving part and the inlet or outlet. This will reduce the possibility of biofilm formation between the moving part and the inlet or outlet, thus helping to prevent adhesion between the moving part and the inlet or outlet, and thus facilitating the normal opening of the solenoid valve.

[0008] Preferably, the magnetic force generated in the vertical direction by the first magnetic surface and the second magnetic surface is less than the weight of the moving part.

[0009] In this solution, the above-mentioned structural form is adopted, which reduces the contact pressure between the moving parts and the inlet or outlet, and effectively prevents the moving parts from detaching from the inlet or outlet, thereby ensuring that the solenoid valve can close normally and thus accurately control the flow of fluid.

[0010] Preferably, the moving part includes a moving portion and a sealing member, the sealing member being connected to one end of the moving portion near the inlet or the outlet, and the sealing member being used to abut against the inlet or the outlet;

[0011] The second magnetic surface is disposed on the sealing element.

[0012] In this design, the aforementioned structural form allows the seal to fit more tightly with the inlet or outlet, improving sealing performance and reducing the risk of fluid leakage. Simultaneously, because the second magnetic surface is located on the seal, it facilitates the generation of repulsive forces between the first and second magnetic surfaces, preventing adhesion between the moving parts and the inlet or outlet, thus ensuring the proper opening of the solenoid valve.

[0013] Preferably, the seal has a first receiving cavity for accommodating the first magnetic material, and the second magnetic surface is disposed on the first surface of the first magnetic material, wherein the first surface faces the inlet or the outlet located below the moving member.

[0014] In this solution, the above-mentioned structural form is adopted, and the first accommodating cavity can protect the first magnetic material, thereby improving the service life of the first magnetic material.

[0015] Preferably, one of the moving part and the seal has a groove, and the other has a protrusion that mates with the groove.

[0016] In this solution, the above-mentioned structural form is adopted, and the connection between the moving part and the seal is achieved through the cooperation of the groove and the protrusion.

[0017] Preferably, the solenoid valve further includes an inlet channel and an outlet channel, the inlet is provided on the inlet channel, the outlet is provided on the outlet channel, and the inlet channel or the outlet channel is provided with a placement surface for placing the first magnetic surface, and a first gap is formed between the periphery of the placement surface and the inner wall surface of the inlet channel or the outlet channel.

[0018] In this solution, the above-described structure is used, with the placement surface for the first magnetic surface located within the inlet or outlet channel. This allows the first magnetic surface to repel the second magnetic surface, causing the moving component to tend to move away from the inlet or outlet. Furthermore, a first gap exists between the periphery of the placement surface and the inner wall of the inlet or outlet channel to prevent the placement surface from affecting the water flow in the inlet or outlet channel.

[0019] Preferably, the solenoid valve further includes a receiving portion disposed within the water inlet channel or the water outlet channel. The first gap is disposed between the outer surface of the receiving portion and the inner wall surface of the water inlet channel or the water outlet channel. A second receiving cavity for placing a second magnetic material is formed on the surface of the receiving portion facing the second magnetic surface. The first magnetic surface is disposed on the surface of the second magnetic material facing the moving part.

[0020] In this design, the aforementioned structural form, with its first gap, prevents the accommodating part from affecting the water flow in the inlet or outlet channel. Furthermore, the second accommodating cavity protects the second magnetic material, extending its lifespan.

[0021] Preferably, the second magnetic material includes a magnet and a protective portion, the protective portion having a third accommodating cavity, the magnet being disposed within the third accommodating cavity, and the first magnetic surface being disposed on the surface of the magnet facing the second magnetic surface.

[0022] In this solution, the above-mentioned structural form is adopted, and the magnet is protected by the protective part, thereby improving the service life of the magnet.

[0023] Preferably, the height of the end of the water inlet channel or the water outlet channel located below the moving part near the receiving cavity in the vertical direction is higher than the height of the upper surface of the first magnetic surface when the first magnetic surface is placed on the placement surface.

[0024] This utility model discloses a water purifier, which includes a solenoid valve as described in any of the above claims.

[0025] In this solution, a solenoid valve is applied to a water purifier. Using the above-described structure, because the first and second magnetic surfaces have the same magnetism, a repulsive force is generated between the moving part and the inlet or outlet. This causes the moving part to tend to move away from the inlet or outlet, reducing the contact pressure between the moving part and the inlet or outlet. This reduces the possibility of biofilm formation between the moving part and the inlet or outlet, thus helping to prevent adhesion between the moving part and the inlet or outlet, and consequently facilitating the normal opening of the solenoid valve.

[0026] The positive and progressive effects of this utility model are as follows:

[0027] Since the first and second magnetic surfaces have the same magnetism, a repulsive force will be generated between the moving part and the inlet or outlet, causing the moving part to tend to move away from the inlet or outlet. This reduces the contact pressure between the moving part and the inlet or outlet, thereby reducing the possibility of biofilm formation between the moving part and the inlet or outlet. This helps to prevent adhesion between the moving part and the inlet or outlet, which in turn helps the solenoid valve to open normally. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the solenoid valve according to an embodiment of the present invention.

[0029] Figure 2 This is a cross-sectional view of the solenoid valve according to an embodiment of the present invention.

[0030] Figure 3 This is a schematic diagram of the structure of the main body of an embodiment of this utility model.

[0031] Figure 4 This is a cross-sectional structural diagram of the main body of an embodiment of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] Solenoid valve 100

[0034] Ontology 1

[0035] Imported 11

[0036] Export 12

[0037] Receiving cavity 13

[0038] Reception slot 14

[0039] Moving part 2

[0040] Sports Department 21

[0041] 211 protrusions

[0042] First protrusion 2111

[0043] Second protrusion 2112

[0044] Seal 22

[0045] Groove 221

[0046] First accommodating cavity 222

[0047] Cavity 23

[0048] First magnetic surface 3

[0049] Second magnetic surface 4

[0050] First Magnetic Material 5

[0051] Water inlet channel 6

[0052] Water outlet channel 7

[0053] 8-section

[0054] Second accommodating cavity 81

[0055] Second magnetic material 9

[0056] Magnet 91

[0057] Protection Department 92

[0058] Third accommodating cavity 921

[0059] Terminal 10

[0060] 20 coils

[0061] Filter screen 30

[0062] 40 guide ribs

[0063] Guide component 50

[0064] Guide cavity 501

[0065] Rubber sealing ring 60

[0066] Spring 70 Detailed Implementation

[0067] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0068] like Figures 1 to 4As shown, this embodiment provides a solenoid valve 100, which includes a body 1 and a moving member 2. The body 1 has a receiving cavity 13 with an inlet 11 and an outlet 12. The inlet 11 and the outlet 12 are connected through the receiving cavity 13. The moving member 2 is disposed in the receiving cavity 13 and moves within the receiving cavity 13 to open or close the inlet 11 or outlet 12 located below the moving member 2. A first magnetic surface 3 is provided at the inlet 11 or outlet 12 located below the moving member 2. A second magnetic surface 4 is provided on the surface of the moving member 2 facing the first magnetic surface 3. The first magnetic surface 3 and the second magnetic surface 4 have the same magnetism, so that the moving member 2 moves away from the inlet 11 or outlet 12 located below the moving member 2. With the above-described structure, since the first magnetic surface 3 and the second magnetic surface 4 have the same magnetism, a repulsive force will be generated between the moving part 2 and the inlet 11 or outlet 12, causing the moving part 2 to tend to move away from the inlet 11 or outlet 12. This reduces the contact pressure between the moving part 2 and the inlet 11 or outlet 12, thereby reducing the possibility of biofilm formation between the moving part 2 and the inlet 11 or outlet 12. This helps to prevent adhesion between the moving part 2 and the inlet 11 or outlet 12, and thus facilitates the normal opening of the solenoid valve 100.

[0069] In this embodiment, the magnetic force generated in the vertical direction by the first magnetic surface 3 and the second magnetic surface 4 is less than the weight of the moving part 2. By adopting the above structural form, while reducing the contact pressure between the moving part 2 and the inlet 11 or outlet 12, it effectively prevents the moving part 2 from detaching from the inlet 11 or outlet 12 when the solenoid valve 100 needs to be in the closed state, thereby ensuring that the solenoid valve 100 can close normally and thus accurately control the flow of fluid.

[0070] like Figure 1 and Figure 2 As shown, it should be specifically noted that the moving part 2 is the armature, and a coil 20 is installed on the top of the receiving cavity 13. The coil 20 consists of an internal coil and an external insulating shell, and is connected to a 24V DC power supply through a metal terminal 10. When the terminal 10 is energized, the coil 20 generates a magnetic force that attracts the armature to the top, causing the armature to detach from the inlet 11 or outlet 12 located below it. In the de-energized state, the armature adheres to the inlet 11 or outlet 12 located below the moving part 2. At this time, although the repulsive force between the first magnetic surface 3 and the second magnetic surface 4 causes the armature to have an upward tendency, because this repulsive force is less than the weight of the armature itself, the armature will not detach from the inlet 11 or outlet 12. This helps to reduce the adhesive force between the moving part 2 and the inlet 11 or outlet 12. The force that actually drives the armature to move comes from the electromagnetic attraction formed after the coil 20 is energized.

[0071] In addition, such as Figure 2As shown, the solenoid valve 100 also includes a filter screen 30 and guide ribs 40. The filter screen 30 is located at the inlet 11 and is used to filter the water entering the inlet 11. Multiple guide ribs 40 are provided at the outlet 12, and the gaps between two adjacent guide ribs 40 are respectively connected to the outside and the receiving cavity 13, thereby making the water outlet pattern more aesthetically pleasing.

[0072] In this embodiment, the outlet 12 is located below the armature, and the inlet 11 is located on one side of the armature. In other embodiments, the inlet 11 may be located below the armature, and the outlet 12 may be located on one side of the armature.

[0073] like Figure 2 As shown, in practical use, the solenoid valve 100 also includes a guide member 50. A guide cavity 501 is formed on the guide member 50, and the extension direction of the guide cavity 501 is the same as the movement direction of the moving member 2. A rubber sealing ring 60 is connected to the guide member 50, and a receiving groove 14 is formed on the inner wall surface of the body 1. The rubber sealing ring 60 is disposed in the receiving groove 14, thereby achieving a sealed connection between the guide member 50 and the body 1. In addition, a recess 23 is formed on the upper surface of the armature. One end of the spring 70 cooperates with the guide member 50, and the other end of the spring 70 extends into the recess 23 and cooperates with the inner wall surface of the recess 23. Therefore, when the coil 20 is energized, the armature moves upward to compress the spring 70. When the coil 20 is not energized, the armature moves downward under the action of the spring 70 to achieve cooperation between the armature and the inlet 11 or outlet 12 located below the armature.

[0074] like Figure 2 As shown, the moving part 2 includes a moving portion 21 and a sealing element 22. The sealing element 22 is connected to the end of the moving portion 21 near the inlet 11 or outlet 12, and is used to abut against the inlet 11 or outlet 12. A second magnetic surface 4 is disposed on the sealing element 22. This structural configuration allows the sealing element 22 to fit more tightly against the inlet 11 or outlet 12, improving sealing performance and reducing the risk of fluid leakage. Simultaneously, since the second magnetic surface 4 is disposed on the sealing element 22, it facilitates the generation of repulsive force between the first magnetic surface 3 and the second magnetic surface 4, which helps prevent adhesion between the moving part 2 and the inlet 11 or outlet 12, thereby facilitating the normal opening of the solenoid valve 100.

[0075] In practical use, the seal 22 is made of rubber, and the cross-sectional area of ​​the seal 22 near the armature is smaller than the cross-sectional area of ​​the seal 22 away from the armature. In other words, the seal 22, through its larger cross-sectional area, cooperates with the inlet 11 or outlet 12 located below the armature, allowing the seal 22 to better seal the inlet 11 or outlet 12 located below the armature.

[0076] like Figure 2As shown, a first receiving cavity 222 for accommodating the first magnetic material 5 is formed within the sealing member 22, and a second magnetic surface 4 is disposed on the first surface of the first magnetic material 5, wherein the first surface faces the inlet 11 or outlet 12 located below the moving member 2. With the above-described structure, the first magnetic material 5 can be protected through the first receiving cavity 222, thereby improving the service life of the first magnetic material 5.

[0077] In this embodiment, the first magnetic material 5 is a magnet 91. In other embodiments, the first magnetic material 5 may be in other forms, which are not limited here.

[0078] One of the moving part 21 and the seal 22 has a groove 221, and the other has a protrusion 211 that mates with the groove 221. With the above structure, the connection between the moving part 21 and the seal 22 is achieved by the mating of the groove 221 and the protrusion 211.

[0079] like Figure 2 As shown, in this embodiment, the moving part 21 is provided with a protrusion 211, and the sealing member 22 is provided with a groove 221 that mates with the protrusion 211. Specifically, the protrusion 211 includes a first protrusion 2111 and a second protrusion 2112, with both ends of the first protrusion 2111 connected to the moving part 21 and the second protrusion 2112, respectively. The diameter of the first protrusion 2111 is smaller than the diameter of the moving part 21, and the diameter of the second protrusion 2112 is larger than the diameter of the first protrusion 2111. Furthermore, the shape of the groove 221 matches the shape of the protrusion 211, thereby increasing the mating area between the groove 221 and the protrusion 211, and thus improving the stability and reliability of the connection between the moving part 21 and the sealing member 22.

[0080] like Figures 1 to 4 As shown, the solenoid valve 100 also includes an inlet channel 6 and an outlet channel 7. An inlet 11 is located on the inlet channel 6, and an outlet 12 is located on the outlet channel 7. The inlet channel 6 or outlet channel 7 has a placement surface for placing the first magnetic surface 3. A first gap exists between the periphery of the placement surface and the inner wall of the inlet channel 6 or outlet channel 7. With this structure, placing the placement surface for the first magnetic surface 3 within the inlet channel 6 or outlet channel 7 allows the first magnetic surface 3 to generate a repulsive force with the second magnetic surface 4, causing the moving part 2 to tend to move away from the inlet 11 or outlet 12. Furthermore, the first gap between the periphery of the placement surface and the inner wall of the inlet channel 6 or outlet channel 7 prevents the placement surface from affecting the water flow in the inlet channel 6 or outlet channel 7.

[0081] like Figures 2 to 4As shown, the solenoid valve 100 also includes a receiving portion 8, which is disposed within the water inlet channel 6 or the water outlet channel 7. A first gap is provided between the outer surface of the receiving portion 8 and the inner wall surface of the water inlet channel 6 or the water outlet channel 7. A second receiving cavity 81 for placing the second magnetic material 9 is formed on the surface of the receiving portion 8 facing the second magnetic surface 4. The first magnetic surface 3 is provided on the surface of the second magnetic material 9 facing the moving member 2. With the above-described structure, the first gap can prevent the receiving portion 8 from affecting the water flow in the water inlet channel 6 or the water outlet channel 7. In addition, the second receiving cavity 81 can protect the second magnetic material 9, thereby improving the service life of the second magnetic material 9.

[0082] In this embodiment, the receiving part 8 is disposed within the water outlet channel 7, and the axis of the receiving part 8 is coaxial with that of the water outlet channel 7. In other embodiments, the receiving part 8 and the water outlet channel 7 may have other cooperative relationships, which are not limited here.

[0083] like Figure 2 As shown, the second magnetic material 9 includes a magnet 91 and a protective part 92. A third accommodating cavity 921 is formed within the protective part 92, and the magnet 91 is disposed within the third accommodating cavity 921. A first magnetic surface 3 is disposed on the surface of the magnet 91 facing the second magnetic surface 4. By adopting the above structural form, the magnet 91 is protected by the protective part 92, thereby improving the service life of the magnet 91.

[0084] In this embodiment, the protective part 92 is a sealing ring. In other embodiments, the protective part 92 may also take other forms, which are not limited here.

[0085] In practical use, the height of the end of the water inlet channel 6 or water outlet channel 7 located below the moving part 2 near the receiving cavity 13 in the vertical direction is higher than the height of the upper surface of the first magnetic surface 3 when the first magnetic surface 3 is placed on the placement surface.

[0086] This embodiment provides a water purifier, which includes a solenoid valve 100. Specifically, the solenoid valve 100 is applied to the water purifier. Using the above-described structure, since the first magnetic surface 3 and the second magnetic surface 4 have the same magnetism, a repulsive force is generated between the moving part 2 and the inlet 11 or outlet 12. This causes the moving part 2 to tend to move away from the inlet 11 or outlet 12, reducing the contact pressure between the moving part 2 and the inlet 11 or outlet 12. This reduces the possibility of biofilm formation between the moving part 2 and the inlet 11 or outlet 12, thus helping to prevent adhesion between the moving part 2 and the inlet 11 or outlet 12, and consequently facilitating the normal opening of the solenoid valve 100.

[0087] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A solenoid valve, characterized in that, The solenoid valve includes a body and a moving component. The body has a receiving cavity with an inlet and an outlet, which are connected. The moving component is disposed within the receiving cavity and moves within the cavity to open or close the inlet or outlet located below the moving component. The inlet or outlet located below the moving component has a first magnetic surface. The surface of the moving component facing the first magnetic surface has a second magnetic surface. The first magnetic surface and the second magnetic surface have the same magnetism, so that the moving component moves away from the inlet or outlet located below the moving component.

2. The solenoid valve as described in claim 1, characterized in that, The magnetic force generated in the vertical direction by the first magnetic surface and the second magnetic surface is less than the weight of the moving part.

3. The solenoid valve as described in claim 1, characterized in that, The moving part includes a moving section and a sealing member. The sealing member is connected to one end of the moving section near the inlet or the outlet, and the sealing member is used to abut against the inlet or the outlet. The second magnetic surface is disposed on the sealing element.

4. The solenoid valve as described in claim 3, characterized in that, The seal has a first receiving cavity for accommodating the first magnetic material, and the second magnetic surface is disposed on the first surface of the first magnetic material, wherein the first surface faces the inlet or the outlet located below the moving part.

5. The solenoid valve as described in claim 3, characterized in that, One of the moving part and the seal has a groove, and the other has a protrusion that mates with the groove.

6. The solenoid valve as described in claim 1, characterized in that, The solenoid valve further includes an inlet channel and an outlet channel. The inlet is located on the inlet channel, and the outlet is located on the outlet channel. The inlet channel or the outlet channel is provided with a placement surface for placing the first magnetic surface. There is a first gap between the periphery of the placement surface and the inner wall of the inlet channel or the outlet channel.

7. The solenoid valve as described in claim 6, characterized in that, The solenoid valve further includes a receiving portion, which is disposed in the water inlet channel or the water outlet channel. The first gap is disposed between the outer surface of the receiving portion and the inner wall surface of the water inlet channel or the water outlet channel. The surface of the receiving portion facing the second magnetic surface has a second receiving cavity for placing the second magnetic material. The first magnetic surface is disposed on the surface of the second magnetic material facing the moving part.

8. The solenoid valve as described in claim 7, characterized in that, The second magnetic material includes a magnet and a protective part. The protective part has a third accommodating cavity, and the magnet is disposed in the third accommodating cavity. The first magnetic surface is disposed on the surface of the magnet facing the second magnetic surface.

9. The solenoid valve as described in claim 6, characterized in that, The height of the end of the water inlet channel or the water outlet channel located below the moving part near the receiving cavity in the vertical direction is higher than the height of the upper surface of the first magnetic surface when the first magnetic surface is placed on the placement surface.

10. A water purifier, characterized in that, The water purifier includes a solenoid valve as described in any one of claims 1-9.

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