Electric water valve and application of electric water valve in electrical appliances

Abstract

The present invention relates to the technical field of electromagnetic valves, specifically an electric water valve and its application in electrical appliances, comprising a housing, a lower seat, a fixing frame, a permanent magnet, a magnetic core, a coil assembly, a sealing silica gel and a lower cover plate; the coil assembly is arranged in the housing and sleeved on the magnetic core, the permanent magnet is mounted on the fixing frame, and the fixing frame is movably inserted into the magnetic core; the lower seat is mounted at the lower end of the housing and is provided with a water inlet and a water outlet, the lower cover plate is located in the lower seat and is located at the lower end opening of the housing, and is provided with a water inlet hole and a water outlet hole; the sealing silica gel is arranged at the lower end of the fixing frame and is located directly above the water inlet hole and the water outlet hole, and the lower seat is provided with a water inlet chamber and a water outlet chamber spaced apart from each other, the water inlet chamber is interconnected with the water inlet and the water inlet hole, and the water outlet chamber is interconnected with the water outlet and the water outlet hole. The fixing frame is reset by the permanent magnet, and the force transmission is more directional, thereby ensuring the effect of opening or closing the electric water valve, and the force transmission efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of solenoid valves, in particular to an electric water valve and the application of the electric water valve in electrical appliances. Background Art

[0002] When opening an existing electric water valve, the coil is energized, and the moving iron core, under the action of electromagnetic force, overcomes the elastic force of the spring and moves away from the water inlet, driving the plug away from the water inlet. When closing the electric water valve, the coil is de-energized, and the moving iron core, under the action of the spring elastic force, moves closer to the water inlet, causing the plug to block the water inlet. This structure relies on a spring for reset. However, the spring is formed by spirally coiled metal strips, which has non-directional force transmission and relatively dispersed elastic force, resulting in poor opening or closing performance of the electric water valve. When the electric water valve is in use, water easily contacts the valve core (moving iron core), spring, guide rod and other components, which can easily cause the valve core, spring and other metal components to rust, and foreign matter to be present in the medium, which can cause the foreign matter to jam the valve core and block the water inlet and outlet. Summary of the Invention

[0003] The purpose of the present invention is to propose an electric water valve and the application of the electric water valve in electrical appliances, aiming to solve the technical problems in the prior art that the opening or closing effect of the electric water valve is poor and the internal metal parts are prone to rust.

[0004] To achieve the above-mentioned purpose, the present invention proposes an electric water valve, comprising a shell, a lower seat, a fixing frame, a permanent magnet, a magnetic core, a coil group, a sealing silica gel and a lower cover plate; the coil group is arranged in the shell and sleeved on the magnetic core, the permanent magnet is mounted on the fixing frame, and the fixing frame is movably inserted on the magnetic core; the lower seat is mounted on the lower end of the shell and is provided with a water inlet and a water outlet, the lower cover plate is located in the lower seat and at the lower end opening of the shell, and the lower cover plate is provided with a water inlet hole and a water outlet hole; The sealing silicone is arranged at the lower end of the fixing frame and is located directly above the water inlet hole and the water outlet hole. A water inlet chamber and a water outlet chamber spaced apart from each other are provided in the lower seat. The water inlet chamber is communicated with the water inlet and the water inlet hole, and the water outlet chamber is communicated with the water outlet and the water outlet hole. Under the action of the coil group, the magnetic core and the permanent magnet can repel or attract each other to drive the fixing frame to rise or fall. When the fixing frame moves up and down, it can drive the sealing silicone to open or close the water inlet hole or the water outlet hole.

[0005] Preferably, the fixing frame includes a column and a mounting seat arranged at one end of the column, and a plug is provided at the end of the column away from the mounting seat; a receiving cavity is provided on the mounting seat, and the permanent magnet is installed in the receiving cavity; the upper end surface of the sealing silicone is recessed downward to form a receiving groove, and the plug is inserted into the receiving groove; the column passes through the magnetic core so that the permanent magnet and the plug are respectively located above and below the magnetic core. The fixing frame structure is arranged in this way, which not only facilitates the fixing of the permanent magnet and enables the permanent magnet and the fixing frame to move synchronously; it also enables the movement of the fixing frame to be directly transmitted to the plug, so that the plug drives the sealing silicone to open or close the water outlet better, and the force loss during the opening or closing process is also less; the overall structure is more simplified and the assembly is simpler.

[0006] Preferably, the side walls of the mounting base are provided with hooks for engaging the permanent magnet, and the side walls of the mounting base are provided with deformation grooves on both sides of the hooks; and the bottom surface of the accommodating cavity is provided with a through-slot directly below the hooks. The deformation grooves function to cause the hooks to deform slightly during insertion of the permanent magnet into the accommodating cavity, thereby facilitating installation of the permanent magnet. After installation, the hooks can securely engage the permanent magnet and prevent breakage. The through-slots reduce the gap between the permanent magnet and the magnetic core, increasing the magnetic force between the permanent magnet and the magnetic core, and improving the opening and closing effect of the electric water valve.

[0007] Preferably, the side wall of the mounting seat is provided with a limit strip protruding outward, and the inner side wall of the housing is provided with a limit groove, in which the limit strip is slidably embedded. The limit strip and the limit groove can guide and limit the movement of the fixing frame, ensuring that the fixing frame moves only in the direction of opening or closing the electric valve, avoiding deviation and ensuring the opening and closing effect.

[0008] Preferably, an upper cover is provided at the upper opening of the housing, positioned directly above the mounting bracket. A rubber stopper is provided on the mounting bracket to prevent the permanent magnet from escaping from the accommodating cavity. The provision of the upper cover ensures proper opening and closing of the electric water valve and enhances structural integrity and sealing. The rubber stopper not only prevents the permanent magnet from escaping but also acts as a buffer, preventing the mounting bracket from directly impacting the upper cover and potentially damaging or dislodging components.

[0009] Preferably, the coil assembly includes a skeleton, an electromagnetic coil, and a housing. The skeleton is sleeved onto the magnetic core, the electromagnetic coil is wound around the skeleton and is electrically connected to an external power source, and the housing is mounted on the skeleton and surrounds the electromagnetic coil. Both the housing and the outer shell have through-holes for the electromagnetic coil to pass through. The skeleton is provided with a positioning protrusion, and the housing is provided with a positioning groove, with the positioning protrusion being retained within the positioning groove. This arrangement of the coil assembly facilitates assembly and maintains a simple structure.

[0010] Preferably, the receiving groove includes a tightening opening and a receiving groove, arranged in sequence and interconnected vertically. The tightening opening has a width W1 that is smaller than the width of the receiving groove W2, and the plug has a width W3 that is larger than the width W1 of the tightening opening. The plug is inserted into the receiving groove through the tightening opening. Once the plug is positioned behind the receiving groove, it is constrained by the tightening opening and cannot easily escape from the receiving groove. Therefore, the mounting bracket can maintain its connection with the sealing silicone even when it moves up and down, ensuring that they do not fall off and prevent the sealing silicone from blocking the water passage when necessary.

[0011] Preferably, the width W4 of the connection between the plug and the column is smaller than the width W1 of the tightening opening. This can better prevent the plug from falling out of the receiving groove and also prevent the sealing silicone from deforming over time at the tightening opening, causing deformation failure, and thus preventing the tightening opening from returning to its original size, causing the plug to easily fall out of the receiving groove.

[0012] Preferably, the lower end surface of the plug is provided with an upwardly concave annular groove, and the bottom surface of the receiving groove is provided with an upwardly protruding annular protrusion, which is embedded in the annular groove. The provision of the annular protrusion and the annular groove allows the operator to intuitively sense whether the assembly is in place during assembly, and at the same time, the plug can be more firmly embedded in the receiving groove.

[0013] Preferably, the lower cover is provided with an outer ring and an inner ring, the outer ring being arranged around the outside of the inner ring; the sealing silicone is provided with an outer edge extending outward at its lower end opening, the outer edge being located between the outer ring and the inner ring, and the upper end face of the outer edge abuts against the lower end face of the outer shell, and the lower end face of the outer edge abuts against the upper end face of the lower cover; the lower end face of the outer shell also abuts against the upper end face of the outer ring, and the outer wall of the inner ring abuts against the inner wall of the sealing silicone. The assembly structure of the cover and the sealing silicone is compact, and more importantly, it can prevent water inside the sealing silicone from flowing out to between the outer shell and the sealing silicone (i.e., outside the sealing silicone) when the electric water valve is in use, causing metal parts inside the electric water valve to rust.

[0014] Preferably, the height H1 of the inner ring is greater than the height H2 of the outer ring. Designing the inner ring height H1 to be higher can prevent water inside the sealing silicone from easily flowing out of the gap between the sealing silicone and the inner ring, further ensuring the sealing performance and preventing the metal parts inside the electric water valve from rusting.

[0015] Preferably, the device further includes a rubber pad disposed beneath the lower cover plate, with a first protruding ring disposed at the edge of the lower end surface of the rubber pad; a second protruding ring disposed at the edge of the lower end surface of the lower cover plate; and a first upward-opening slot disposed on the inner sidewall of the lower seat, with the first and second protruding rings inserted into the first slot. This arrangement further enhances the stability of the connection between the lower cover plate, rubber pad, and lower seat; the sidewall of the first slot near the center of the lower seat abuts against the rubber pad, further preventing water from flowing between the water inlet and outlet chambers through the gap between the lower cover plate and the lower seat.

[0016] Preferably, the upper end surface of the rubber pad is provided with an upwardly protruding third convex ring, and the lower end surface of the lower cover is provided with an upwardly recessed annular groove, in which the third convex ring is clamped. This facilitates assembly of the rubber pad and the lower cover, and allows the rubber pad and the lower cover to fit more tightly.

[0017] Preferably, the fixing frame can move up and down to drive the sealing silicone to open or close the water outlet; the lower cover is provided with an upwardly protruding fourth protrusion ring at the water outlet, and the fourth protrusion ring has a notch that is interconnected with the water outlet. The lower cover has a relatively simple structure, and cleaning or unclogging the water outlet directly means cleaning or unclogging the wastewater outlet, thereby making cleaning and unclogging the wastewater outlet more convenient.

[0018] Preferably, the plug is provided with a first locking pin, which passes through the sealing silicone and is inserted into the water outlet, and is movable axially relative to the water outlet. The provision of the first locking pin allows the water outlet to be automatically cleaned and unblocked when the electric water valve is opened or closed, eliminating the need for separate cleaning and unblocking of the water outlet, and extending the service life.

[0019] Preferably, a spring is sleeved on the sidewall of the tightening opening. The spring is located within the sealing silicone. One end of the spring is bent to form a second locking pin, which is inserted into the water inlet and can move axially relative to the water inlet. This allows the water inlet to be automatically cleaned and unblocked when the electric water valve is opened or closed, eliminating the need for separate cleaning and unblocking. The spring sleeved on the sidewall of the tightening opening prevents it from falling off.

[0020] On the other hand, the present invention also proposes the application of an electric water valve on electrical appliances. The above-mentioned electric water valve is applied to electrical appliances, and the electrical appliances are any one of a water purifier, a water purifier, a water dispenser, a floor scrubber, a sweeper, a hanging iron, a vacuum cleaner, a washing machine, and a dishwasher.

[0021] The present invention provides an electric water valve and its application in an electrical appliance, which have at least the following beneficial effects: by providing a permanent magnet, when the coil assembly is energized, the magnetic core and the permanent magnet repel each other, opening the electric water valve; and when the power is off, the permanent magnet and the magnetic core attract each other, closing the electric water valve. Compared to using a spring, the return of the fixing frame relies on the permanent magnet, which allows for more directional force transmission, thereby ensuring the opening or closing effect of the electric water valve. The force transmission efficiency is also higher, and vibration between components is greatly reduced. The permanent magnet has permanent magnetism, and the opening or closing effect of the electric water valve remains stable even after long periods of use, thereby increasing the service life of the electric water valve. The permanent magnet, the fixing frame, and the sealing silicone are directly connected and move synchronously. Therefore, when the permanent magnet is acted upon by the magnetic core, it directly opens or closes the water inlet. Compared to existing electric water valves, the number of components is reduced, the structure is more simplified, and assembly is simpler. Due to the reduced number of components, the force consumption during the transmission process is reduced. Sealing silicone is provided to isolate the lower cover from the fixing frame, permanent magnet, magnetic core, and coil group, so that water cannot come into contact with the fixing frame, permanent magnet, magnetic core, coil group, etc. when flowing through the water inlet and outlet holes, thereby avoiding rusting of metal parts in the electric valve and ensuring that the fixing frame will not get stuck and the water inlet and outlet holes will not be blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 Schematic diagram of the three-dimensional structure of the electric water valve of the present invention;

[0024] Figure 2 This is a front view structural diagram of the electric water valve of the present invention;

[0025] Figure 3 for Figure 2 Schematic diagram of the structure of the electric water valve section AA;

[0026] Figure 4 This is a schematic diagram of the explosion structure of the electric water valve of the present invention;

[0027] Figure 5 Schematic diagram of the structure of the housing of the present invention;

[0028] Figure 6 Schematic diagram of the cross-sectional structure of the housing of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the lower seat of the present invention;

[0030] Figure 8 This is a structural schematic diagram of the lower seat of the present invention from another angle;

[0031] Figure 9 It is a schematic cross-sectional structure diagram of the lower seat of the present invention;

[0032] Figure 10 It is a structural schematic diagram of the fixing frame of the present invention;

[0033] Figure 11 This is a structural schematic diagram of the fixing frame of the present invention from another angle;

[0034] Figure 12 Schematic diagram of the cross-sectional structure of the fixing frame of the present invention;

[0035] Figure 13 for Figure 12 A magnified schematic diagram of part A;

[0036] Figure 14 Schematic diagram of the cross-sectional structure of the coil assembly of the present invention;

[0037] Figure 15 Schematic diagram of the structure of the skeleton of the present invention;

[0038] Figure 16 Schematic diagram of the structure of the housing of the present invention;

[0039] Figure 17 This is a schematic structural diagram of the sealing silica gel of the present invention;

[0040] Figure 18 Schematic diagram of the cross-sectional structure of the sealing silica gel of the present invention;

[0041] Figure 19 This is a structural diagram of the lower cover plate of the present invention;

[0042] Figure 20 for Figure 19 An enlarged schematic diagram of part B;

[0043] Figure 21 Schematic diagram of the cross-sectional structure of the lower cover plate of the present invention;

[0044] Figure 22 This is a structural schematic diagram of the lower cover plate of the present invention from another angle;

[0045] Figure 23 This is a schematic structural diagram of the upper cover plate of the present invention;

[0046] Figure 24 Schematic diagram of the structure of the rubber pad of the present invention;

[0047] Figure 25 It is a schematic diagram of the cross-sectional structure of the rubber pad of the present invention.

[0048] In the accompanying drawings: 1-housing, 11-limiting groove, 12-upper partition, 121-slot, 13-lower partition, 14-clip, 2-lower seat, 21-water inlet, 22-water outlet, 23-water inlet cavity, 24-water outlet cavity, 25-first card slot, 3-fixed frame, 31-column, 32-mounting seat, 321-accommodating cavity, 322-hook, 3221-guide inclined surface, 323-deformation groove, 324-through groove, 325-limiting strip, 33-plug, 331-annular groove, 4-permanent magnet, 5-magnetic core, 6-coil group, 61-skeleton, 611-positioning protrusion, 62-electromagnetic coil, 63-housing, 631-through hole, 63 2-positioning groove, 7-sealing silicone, 71-accommodating groove, 711-tightening mouth, 712-accommodating groove, 72-annular protrusion, 73-inclined guide surface, 74-outer edge, 8-lower cover, 81-water inlet hole, 82-water outlet hole, 83-outer ring, 84-inner ring, 85-raised circle, 86-second raised ring, 87-annular groove, 88-fourth raised ring, 89-notch, 9-upper cover, 91-second card slot, 10-rubber plug, 101-rubber pad, 1011-first raised ring, 1012-third raised ring, 102-first card pin, 103-spring, 1031-second card pin, 104-filter, 105-silicone gasket.

[0049] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0052] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0053] like Figures 1 to 25 As shown, an electric water valve includes a shell 1, a lower seat 2, a fixing frame 3, a permanent magnet 4, a magnetic core 5, a coil group 6, a sealing silica gel 7 and a lower cover plate 8; the coil group 6 is arranged in the shell 1 and is sleeved on the magnetic core 5, the permanent magnet 4 is mounted on the fixing frame 3, and the fixing frame 3 is movably inserted on the magnetic core 5; the lower seat 2 is mounted on the lower end of the shell 1 and is provided with a water inlet 21 and a water outlet 22, the lower cover plate 8 is located in the lower seat 2 and is located at the lower end opening of the shell 1, and the lower cover plate 8 is provided with a water inlet hole 81 and a water outlet hole 82; the sealing The silica gel 7 is arranged at the lower end of the fixing frame 3 and is located directly above the water inlet hole 81 and the water outlet hole 82. A water inlet chamber 23 and a water outlet chamber 24 spaced apart from each other are provided in the lower seat 2. The water inlet chamber 23 is communicated with the water inlet 21 and the water inlet hole 81, and the water outlet chamber 24 is communicated with the water outlet 22 and the water outlet hole 82. Under the action of the coil group 6, the magnetic core 5 and the permanent magnet 4 can repel or attract each other to drive the fixing frame 3 to rise or fall. When the fixing frame 3 moves up and down, it can drive the sealing silica gel 7 to open or close the water inlet hole 81 or the water outlet hole 82.

[0054] The outer shell 1 is a hollow shell 63, and the fixing frame 3, permanent magnet 4, magnetic core 5, coil group 6 and sealing silicone 7 are all arranged inside the outer shell 1. The permanent magnet 4 is mounted on the fixing frame 3, and the sealing silicone 7 is arranged at the lower end of the fixing frame 3, so that the permanent magnet 4, the fixing frame 3 and the sealing silicone 7 move synchronously. The lower seat 2 is mounted on the lower end of the outer shell 1. Specifically, threaded holes can be opened at corresponding positions of the two, and then bolts can be screwed into the threaded holes of the two to connect and fix the two, and the lower end of the outer shell 1 can also be inserted into the lower seat 2. The lower cover plate 8 is arranged at the lower end of the outer shell 1 and is located inside the lower seat 2. After the outer shell 1 and the lower seat 2 are fixed, the lower cover plate 8 can be fixed. The lower cover plate 8 is provided with a water inlet hole 81 and a water outlet hole 82, and the lower seat 2 is provided with a water inlet cavity 23 and a water outlet cavity 24, which are cavities separated from each other; the lower seat 2 is provided with a water inlet 21 and a water outlet 22, the water inlet 21 and the water inlet hole 81 are both interconnected with the water inlet cavity 23, the water inlet hole 81 is also interconnected with the cavity formed by the sealing silicone 7 and the lower cover plate 8, the water outlet 22 and the water outlet hole 82 are both interconnected with the water outlet cavity 24, and the water outlet hole 82 is also interconnected with the cavity formed by the sealing silicone 7 and the lower cover plate 8. The direction of water flow is: water enters the water inlet cavity 23 from the water inlet 21, then enters the cavity formed by the sealing silicone 7 and the lower cover plate 8 through the water inlet hole 81, then enters the water outlet cavity 24 through the water outlet hole 82, and finally is discharged through the water outlet 22. In this embodiment, the upward and downward movement of the fixing frame 3 drives the sealing silicone 7 to open or close the water outlet 82, thereby achieving the purpose of cutting off the water flow. Of course, in other embodiments, the water inlet 81 can be opened or closed. The permanent magnet 4 has permanent magnetism and can attract the magnetic core 5, which can be made of iron. The coil assembly 6 is mounted on the magnetic core 5 and is electrically connected to an external power source. When the external power source supplies power to the coil assembly 6, the coil assembly 6 generates a magnetic field that magnetizes the magnetic core 5, making the magnetic core 5 magnetic. At this time, the magnetic force of the magnetic core 5 is greater than the magnetic force of the permanent magnet 4. When the external power source stops supplying power to the coil assembly 6, the magnetic field disappears, and the magnetic core 5 no longer has magnetism.

[0055] When the electric water valve is in the open state, an external power supply supplies power to the coil group 6, and the coil group 6 generates a magnetic field to magnetize the magnetic core 5. At this time, the magnetic properties of the magnetic core 5 are the same as those of the permanent magnet 4. Due to the principle of like poles repelling, the permanent magnet 4 will move away from the magnetic core 5. Therefore, the permanent magnet 4 drives the fixing frame 3 away from the water outlet 82. When the fixing frame 3 moves away from the water outlet 82, it drives the sealing silicone 7 to deform upward and away from the water outlet 82. At this time, the sealing silicone 7 will not block the water outlet 82, so the water flow is not cut off and the electric water valve is in the open state. When the electric water valve is in the closed state, the external power supply does not supply power to the coil group 6. At this time, the coil group 6 does not generate a magnetic field, and the magnetic core 5 is not magnetic. Under the magnetic force of the permanent magnet 4, the magnetic core 5 and the permanent magnet 4 attract each other, so that the permanent magnet 4 and the fixing frame 3 are close to the water outlet 82. When the fixing frame 3 is close to the water outlet 82, the sealing silicone 7 is driven to produce a certain degree of deformation and the sealing silicone 7 is brought close to the water outlet 82 to block the water outlet 82. At this time, the water flow is cut off and the electric water valve is in the closed state.

[0056] By providing a permanent magnet 4, when the coil assembly 6 is energized, the magnetic core 5 and the permanent magnet 4 repel each other, opening the electric water valve. When the power is off, the permanent magnet 4 and the magnetic core 5 attract each other, closing the electric water valve. Compared to using a spring 103, the return of the fixing frame 3 relies on the permanent magnet 4, which makes the force transmission more directional, thereby ensuring the opening or closing effect of the electric water valve. The force transmission efficiency is higher, and vibration between components is greatly reduced. The permanent magnet 4 has permanent magnetism, so even after long periods of use, the opening or closing effect of the electric water valve remains stable, thereby extending the service life of the electric water valve. The permanent magnet 4, the fixing frame 3, and the sealing silicone 7 are directly connected and move synchronously. Therefore, when the permanent magnet 4 is acted upon by the magnetic core 5, it directly opens or closes the water inlet 21. Compared to existing electric water valves, the number of components is reduced, the structure is more simplified, and assembly is simpler. Due to the fewer components, the force consumption during the transmission process is reduced. The sealing silica gel 7 is provided to isolate the lower cover plate 8 from the fixing frame 3, the permanent magnet 4, the magnetic core 5, and the coil group 6, so that water cannot come into contact with the fixing frame 3, the permanent magnet 4, the magnetic core 5, the coil group 6, etc. when flowing through the water inlet hole 81 and the water outlet hole 82, thereby preventing the metal parts in the electric valve from rusting, ensuring that the fixing frame 3 will not get stuck, and the water inlet hole 81 and the water outlet hole 82 will not be blocked.

[0057] Furthermore, if Figures 10 to 12 、 Figures 17 and 18 As shown, the fixing frame 3 includes a column 31 and a mounting seat 32 arranged at one end of the column 31, and a plug 33 is provided at the end of the column 31 away from the mounting seat 32; a receiving cavity 321 is opened on the mounting seat 32, and the permanent magnet 4 is installed in the receiving cavity 321; the upper end surface of the sealing silicone 7 is recessed downward to form a receiving groove 71, and the plug 33 is inserted into the receiving groove 71; the column 31 passes through the magnetic core 5 so that the permanent magnet 4 and the plug 33 are respectively located above and below the magnetic core 5.

[0058] The column 31, mounting base 32, and plug 33 form an integrated structure. The mounting base 32 is located at one end of the column 31. Both the mounting base 32 and the column 31 are cylindrical structures, and the outer diameter of the mounting base 32 is larger than that of the column 31. The mounting base 32 defines a receiving cavity 321, within which the permanent magnet 4 is located. Both the permanent magnet 4 and the receiving cavity 321 are annular structures, and the depth of the receiving cavity 321 is greater than the thickness of the permanent magnet 4. The mounting base 32 is provided at one end of the column 31, and the plug 33 is provided at the other end. The upper end surface of the sealing silicone 7 is recessed downwardly in the middle to form a receiving groove 71, into which the plug 33 is inserted from top to bottom. The magnetic core 5 is a T-shaped structure with open ends and a hollow interior. The column 31 extends through the magnetic core 5 and can move up and down relative to the magnetic core 5 along its axis. The mounting base 32 and the permanent magnet 4 are located above the magnetic core 5, and the plug 33 is located below the magnetic core 5. The structure of the fixing frame 3 is configured in this way, which not only facilitates the fixing of the permanent magnet 4, allowing the permanent magnet 4 and the fixing frame 3 to move synchronously; it also allows the movement of the fixing frame 3 to be directly transmitted to the plug 33, so that the plug 33 drives the sealing silicone 7 to open or close the water outlet 82 more effectively, and the force loss during the opening or closing process is also reduced; the overall structure is more simplified, and assembly is simpler. On the other hand, the plug 33 is directly embedded in the receiving groove 71 of the sealing silicone 7, so that the movement trend of the fixing frame 3 is directly transmitted to the sealing silicone 7, the synchronization between the sealing silicone 7 and the fixing frame 3 is improved, and the opening or closing of the electric water valve is more efficient and timely; the plug 33 directly presses against the sealing silicone 7, causing the sealing silicone 7 to deform, so that the sealing silicone 7 can better block the water outlet, and the electric water valve is closed more thoroughly.

[0059] Specifically, if Figure 5 and Figure 6As shown, an upper partition 12 and a lower partition 13 are provided within the housing 1. The upper partition 12 is located directly above the lower partition 13. The coil assembly 6 is located between the upper and lower partitions 12, 13. The mounting base 32 is located above the upper partition 12. The column 31 passes through the upper and lower partitions 12, 13. The plug 33 is located below the lower partition 13. The upper and lower partitions 12, 13 are arranged sequentially from top to bottom and are parallel to each other. The upper and lower partitions 12, 13 are spaced a certain distance apart. The coil assembly 6 is mounted between the upper and lower partitions 12, 13. The column 31 not only passes through the coil assembly 6, but also passes through the upper and lower partitions 12, 13. Therefore, both the upper and lower partitions 12, 13 have holes for the column 31 to pass through. The upper end of coil assembly 6 abuts the lower end surface of upper partition 12, while the lower end of coil assembly 6 abuts the upper end surface of lower partition 13. Upper and lower partitions 12, 13 secure coil assembly 6 within housing 1. Mounting base 32 is located above upper partition 12. When magnetic core 5 and permanent magnet 4 are attracted to each other, mounting base 32 abuts the upper end surface of upper partition 12. Plug 33 is located below lower partition 13. This internal structure of housing 1 securely mounts coil assembly 6. Upper partition 12 also limits the movement of mounting bracket 3, preventing plug 33 and sealing silicone 7 from exerting excessive force on the cover.

[0060] like Figure 6 As shown, the lower end surface of the upper partition 12 is provided with an upwardly recessed slot 121, and the upper edge of the magnetic core 5 is located outside the coil group 6 and within the slot 121. As previously mentioned, the magnetic core 5 is specifically a T-shaped structure, with the main body of the magnetic core 5 inserted into the coil group 6, and the upper edge of the magnetic core 5 extending outward and located above the coil group 6. The lower end surface of the upper partition 12 is provided with a slot 121 whose shape matches the upper edge of the magnetic core 5. The upper edge of the magnetic core 5 is located within the slot 121, and the upper end surface of the coil group 6 abuts the lower end surface of the upper partition 12. The provision of the slot 121 allows the upper end surface of the coil group 6 to abut the lower end surface of the upper partition 12, thereby improving the compactness of the structure between the coil group 6, the magnetic core 5, the upper partition 12, and the lower partition 13, and allows the magnetic core 5 to be closer to the permanent magnet 4, ensuring the magnetic attraction and repulsion between the magnetic core 5 and the permanent magnet 4.

[0061] Furthermore, if Figure 10 、 Figure 12 and Figure 13 As shown, the side wall of the mounting seat 32 is provided with a hook 322 to hook the permanent magnet 4 , and the side wall of the mounting seat 32 is provided with a deformation groove 323 on both sides of the hook 322 ; the bottom surface of the accommodating cavity 321 is provided with a through groove 324 just below the hook 322 .

[0062] The side wall of the mounting seat 32 is provided with a hook 322 at its upper end facing the accommodating cavity 321. When the permanent magnet 4 is embedded in the accommodating cavity 321, the hook 322 abuts against the upper end surface of the permanent magnet 4 and thus hooks the permanent magnet 4. Specifically, the side wall of the mounting seat 32 is evenly distributed with multiple hooks 322 around the center of the mounting seat 32, such as Figure 5 As shown, there are four hooks 322. In actual applications, there can be two, three, five, or other numbers of hooks 322. The sidewalls of the mounting base 32 are provided with deformation grooves 323 on both sides of the hooks 322. The deformation grooves 323 are used to cause the hooks 322 to deform slightly when the permanent magnet 4 is inserted into the accommodating cavity 321, thereby facilitating the installation of the permanent magnet 4. After installation, the hooks 322 can firmly hook the permanent magnet 4 and prevent the hooks 322 from breaking. Without the hooks 322 or other structures to further secure the permanent magnet 4, the synchronization between the permanent magnet 4 and the fixing frame 3 will be poor. When the magnetic core 5 attracts or repels the permanent magnet 4, the fixing frame 3 cannot move synchronously in time, resulting in a delay in the opening and closing of the electric water valve and a poor opening and closing effect. If the fixing frame 3 and the permanent magnet 4 are not synchronized, the force transmitted between them will also be lost.

[0063] The permanent magnet 4 is located within the accommodating chamber 321, so the bottom surface of the accommodating chamber 321 separates the permanent magnet 4 and the magnetic core 5. The through-slot 324 provided in the bottom surface of the accommodating chamber 321 reduces the distance between the permanent magnet 4 and the magnetic core 5, thereby increasing the magnetic force between the permanent magnet 4 and the magnetic core 5 (the force when they attract or repel each other is greater), thereby improving the opening or closing effect of the electric water valve. If the through-slot 324 is not provided, and the bottom surface of the accommodating chamber 321 completely separates the permanent magnet 4 and the magnetic core 5, when the permanent magnet 4 and the magnetic core 5 attract each other, the attraction force will be insufficient, and the effect of blocking the water outlet 82 will be poor. To increase the attraction force, the material of the permanent magnet 4 needs to be improved, which increases the manufacturing cost. When the permanent magnet 4 and the magnetic core 5 need to repel each other, the interaction force between them may be small, resulting in a poor effect of opening the water outlet 82. To ensure the repulsive force, the number of coils or the current needs to be increased, which will also increase the cost of use. Specifically, the through slot 324 is located directly below the hook 322 . The design of the through slot 324 can also increase the deformation capability of the side wall of the mounting seat 32 corresponding to the hook 322 , thereby better preventing the permanent magnet 4 from breaking during the installation process.

[0064] like Figure 12 and Figure 13As shown, along the direction in which the permanent magnet 4 is inserted into the accommodating cavity 321, the hook 322 is provided with a guiding inclined surface 3221 that gradually extends toward the center of the mounting seat 32. The permanent magnet 4 is embedded in the accommodating cavity 321 from top to bottom, and the hook 322 extends to the accommodating cavity 321. When the permanent magnet 4 is installed, the permanent magnet 4 presses against the hook 322, causing the sidewalls of the mounting seat 32 to deform and the hook 322 to deflect outward. After the permanent magnet 4 is installed, the hook 322 returns to its original position due to the deformation of the sidewalls of the mounting seat 32, thereby hooking the permanent magnet 4. The hook 322 is provided with a guiding inclined surface 3221 that extends from top to bottom and from the outside to the inside. This allows the permanent magnet 4 to gradually deform the sidewalls of the mounting seat 32 during installation. This not only facilitates the installation of the permanent magnet 4, but also prevents sudden deformation of the sidewalls of the mounting seat 32 at the hook 322, which could cause breakage.

[0065] Furthermore, if Figure 5 and Figure 10 As shown, the side wall of the mounting seat 32 is provided with a limiting strip 325 protruding outward, and the inner side wall of the housing 1 is provided with a limiting groove 11, and the limiting strip 325 is slidably embedded in the limiting groove 11.

[0066] The length of the limit bar 325 is consistent with the axis of the mounting base 32 and the direction of movement of the fixing frame 3 and the permanent magnet 4. The limit slot 11 can be formed by a recessed opening in the inner side wall of the housing 1, or by providing two parallel limit posts spaced a certain distance apart on the inner side wall of the housing 1, with the limit slot 11 formed between the two limit posts. The limit bar 325 is embedded in the limit slot 11, and when the fixing frame 3 moves, the limit bar 325 can slide within the limit slot 11. The provision of the limit bar 325 and the limit slot 11 can guide and limit the movement of the fixing frame 3, ensuring that the fixing frame 3 moves only in the direction of opening or closing the electric valve, avoiding deviation and ensuring the opening and closing effect. Without the limit bar 325 and the limit slot 11 to guide and limit the movement of the fixing frame 3, deviation of the fixing frame 3 during movement will cause significant loss of force transmission, poor opening and closing effect of the electric water valve, and possible collision between components, which can easily damage the components.

[0067] Furthermore, if Figures 1 to 4 As shown, an upper cover plate 9 is provided at the upper opening of the housing 1 , and the upper cover plate 9 is located directly above the fixing frame 3 . The fixing frame 3 is provided with a rubber plug 10 for limiting the permanent magnet 4 from escaping from the accommodating cavity 321 .

[0068] Specifically, the upper end of the housing 1 is provided with a latch 14 for securing the upper cover 9. A second latching slot 91 is provided at the edge of the upper cover 9. The latch 14 engages with the second latching slot 91 to secure the upper cover 9 to the upper opening of the housing 1. The fixing frame 3 is located within the housing 1 and can move up and down within the housing 1, while the upper cover 9 is located directly above the fixing frame 3. If the fixing frame 3 continues to move upward, the cover can limit the fixing frame 3 to prevent the fixing frame 3 from separating from the housing 1 and causing parts to loosen or fall off. If there is no cover to limit the fixing frame 3, when the current in the coil is too large, the repulsive force between the magnetic core 5 and the permanent magnet 4 will be too large, causing the fixing frame 3 and the permanent magnet 4 to move upward beyond the travel range. At this time, if the fixing frame 3 needs to be driven downward, the distance between the permanent magnet 4 and the magnetic core 5 is large, and the magnetic attraction force is insufficient, resulting in the inability to close the water hole. Therefore, the provision of the upper cover 9 can ensure the normal opening or closing operation of the electric water valve and improve the structural integrity and sealing performance.

[0069] A rubber stopper 10 is provided on the fixing frame 3, and the rubber stopper 10 is located above the permanent magnet 4; if the permanent magnet 4 is subjected to the repulsive force of the magnetic core 5, the permanent magnet 4 has a tendency to escape from the accommodating cavity 321. At this time, if there is no hook 322 to restrict the permanent magnet 4, the permanent magnet 4 will continue to move upward and escape from the accommodating cavity 321. At this time, the rubber stopper 10 on the fixing frame 3 can play a role in restricting the permanent magnet 4 and preventing the permanent magnet 4 from escaping from the accommodating cavity 321. The fixing frame 3 is located directly above the upper cover plate 9, and the rubber plug 10 is arranged on the fixing frame 3, so the upper cover plate 9 is also located directly above the rubber plug 10; when the electric water valve is opened, the fixing frame 3 will be close to the upper cover plate 9, and may even hit the upper cover plate 9, and the rubber plug 10 is arranged on the fixing frame 3. When the fixing frame 3 hits the upper cover plate 9, the rubber plug 10 directly contacts the upper cover plate 9. Since the rubber plug 10 is relatively soft, it can play a buffering role during the collision, preventing the fixing frame 3 from directly hitting the upper cover plate 9, causing damage or falling off of parts.

[0070] Furthermore, if Figure 3 、 Figures 14 to 16 As shown, the coil group 6 includes a skeleton 61, an electromagnetic coil 62 and a shell 63. The skeleton 61 is sleeved on the magnetic core 5. The electromagnetic coil 62 is wound on the skeleton 61 and electrically connected to an external power supply. The shell 63 is installed on the skeleton 61 and surrounds the electromagnetic coil 62. The shell 63 and the outer shell 1 are both provided with a through hole 631 for the electromagnetic coil 62 to pass through. A positioning protrusion 611 is provided on the skeleton 61, and a positioning groove 632 is provided on the shell 63. The positioning protrusion 611 is clamped in the positioning groove 632.

[0071] The skeleton 61 is an I-shaped structure, with the electromagnetic coil 62 wound around it. The skeleton 61 is hollow in the middle and open at both ends. The magnetic core 5 is inserted into the hollow space in the middle of the skeleton 61. The shell 63 is a cylindrical structure with a hollow interior, an open upper end, and a hole on the lower end surface. The skeleton 61 is set within the shell 63, and the shell 63 is arranged around the outer periphery of the electromagnetic coil 62. Therefore, from the outside to the inside, the shell 1, the shell 63, the electromagnetic coil 62, the skeleton 61, the magnetic core 5, and the column 31 are arranged in order. The shell 1 and the shell 63 are both provided with through holes 631 at relative positions. The electromagnetic coil 62 passes through the through holes 631 and is electrically connected to the external power supply. Specifically, the lower end surface of the skeleton 61 is provided with a positioning protrusion 611, and the lower end surface of the shell 63 is provided with a positioning groove 632. When the skeleton 61 is installed in the shell 63, the positioning protrusion 611 is locked in the positioning groove 632. The coil assembly 6 structure is arranged in this way, which is convenient for assembly and has a simple structure.

[0072] Further, if Figure 12 and 18 As shown, the accommodating groove 71 includes a tightening mouth 711 and an accommodating groove 712, which are arranged in sequence from top to bottom and connected to each other. The width W1 of the tightening mouth 711 is smaller than the width W2 of the accommodating groove 712. The width W3 of the plug 33 is larger than the width W1 of the tightening mouth 711. The plug 33 is embedded in the accommodating groove 712 through the tightening mouth 711.

[0073] The accommodating groove 71 is composed of a tightening opening 711 and an accommodating groove 712 which are interconnected. Along the embedding direction of the plug 33, there are the tightening opening 711 and the accommodating groove 712 in sequence. The width W1 of the tightening opening 711 is smaller than the width W2 of the accommodating groove 712, and the width W3 of the plug 33 is larger than the width W1 of the tightening opening 711. The plug 33 is embedded in the accommodating groove 712 from top to bottom. In the process of the plug 33 being embedded in the accommodating groove 712, the plug 33 first passes through the tightening opening 711. Since the width W3 of the plug 33 is larger than the width W1 of the tightening opening 711, the plug 33 will squeeze the sealing silicone 7 in this process to cause the sealing silicone 7 to deform (that is, the width of the tightening opening 711 is expanded in a short time). After passing through the tightening opening 711, the plug 33 is finally located in the accommodating groove 712. Because the width W1 of the tightening opening 711 is smaller than the width W3 of the plug 33, the plug 33 is located in the receiving groove 712 and is not easily removed from the receiving groove 712 due to the restriction of the tightening opening 711. Therefore, the fixing frame 3 can maintain its connection with the sealing silicone 7 even when it moves up and down, ensuring that they will not fall off from each other and prevent the sealing silicone 7 from blocking the water flow hole when necessary. If the sealing silicone 7 and the fixing frame 3 fall off from each other, the fixing frame 3 will not be able to properly block the water flow hole when it descends, and the sealing silicone 7 will also deform erratically, causing the components to loosen and fall off, and the opening and closing function of the electric water valve will be ineffective.

[0074] like Figure 17 and Figure 18 As shown, the upper opening of the tightening opening 711 is provided with an inclined guide surface 73, which gradually extends from top to bottom toward the center of the tightening opening 711. The plug 33 is embedded in the receiving groove 712 from top to bottom. The opening of the tightening opening 711 is provided with an inclined guide surface 73 extending from top to bottom and from outside to inside. This allows the plug 33 to slowly deform the sidewalls of the tightening opening 711 during the embedding process, making it easier for the staff to embed the plug 33 in the receiving groove 712. More preferably, the lower end of the plug 33 is also provided with an inclined surface that matches the inclined guide surface 73. The inclined surface has the same inclination angle and inclination direction as the inclined guide surface 73, making the assembly of the plug 33 more convenient.

[0075] Furthermore, if Figure 12 and 18 As shown, the width W4 of the connection between the plug 33 and the column 31 is smaller than the width W1 of the tightening opening 711 .

[0076] When the plug 33 is inserted into the receiving groove 712, the sealing silicone 7 is first squeezed and the tightening opening 711 is expanded. When the plug 33 is completely embedded in the receiving groove 712, the connection between the plug 33 and the column 31 is located in the tightening opening 711; the width W4 of the connection between the plug 33 and the column 31 is set to be smaller than the width W1 of the tightening opening 711, so that after the plug 33 is inserted into the receiving groove 712, the sealing silicone 7 at the tightening opening 711 can restore its deformation, and the width of the tightening opening 711 becomes normal size. At this time, it can better limit the plug 33 from escaping from the receiving groove 712, and at the same time, it can also prevent the sealing silicone 7 from being deformed at the tightening opening 711 for a long time, causing deformation failure, and then making the tightening opening 711 unable to restore its initial size, causing the plug 33 to easily detach from the receiving groove 712.

[0077] Furthermore, if Figure 11 、 Figure 12 and Figure 18 As shown, the lower end surface of the plug 33 is provided with an upwardly concave annular groove 331 , and the bottom surface of the accommodating groove 712 is provided with an upwardly protruding annular protrusion 72 , which is embedded in the annular groove 331 .

[0078] The plug 33 is a cylindrical body 31 with an annular groove 331 defined on its lower end, centered on the central axis of the plug 33. The bottom surface of the receiving groove 712 is provided with an annular protrusion 72, whose shape, position, and size match those of the annular groove 331. When the plug 33 is inserted into the receiving groove 712, the annular protrusion 72 nestles within the annular groove 331. The presence of the annular protrusion 72 and the annular groove 331 allows the operator to intuitively determine proper assembly during assembly and ensures that the plug 33 is more securely seated within the receiving groove 712.

[0079] Furthermore, if Figure 19 and 21 As shown, the lower cover plate 8 is provided with an outer ring 83 and an inner ring 84, and the outer ring 83 is arranged on the outside of the inner ring 84; the sealing silicone 7 is provided with an outer edge 74 extending outward at its lower end opening, and the outer edge 74 is located between the outer ring 83 and the inner ring 84, and the upper end surface of the outer edge 74 abuts against the lower end surface of the outer shell 1, and the lower end surface of the outer edge 74 abuts against the upper end surface of the lower cover plate 8; the lower end surface of the outer shell 1 also abuts against the upper end surface of the outer ring 83, and the outer wall of the inner ring 84 abuts against the inner wall of the sealing silicone 7.

[0080] The overall shape of the sealing silicone 7 is an inverted bowl-like structure, with a hollow interior and an open lower end. A region is formed between the sealing silicone 7 and the lower cover 8, into which water flows. The lower cover 8 is located at the lower end opening of the housing 1, with an outer edge 74 located between the housing 1 and the lower cover 8. The lower end surface of the housing 1 and the upper end surface of the lower cover 8 sandwich the outer edge 74. This structural arrangement of the sealing silicone 7 further ensures that the sealing silicone 7 can isolate water from the metal components of the electric water valve. The lower cover plate 8 is a disc-shaped structure, with an upwardly protruding outer ring 83 and inner ring 84 on its upper end surface. The center of the outer ring 83 and inner ring 84 is the center of the circle of the lower cover plate 8, and the outer ring 83 is located on the outside of the inner ring 84 (i.e., on the side away from the center of the circle). There is a certain gap between the outer ring 83 and the inner ring 84. The lower cover plate 8 is arranged at the lower end opening of the shell 1, and the lower end of the shell 1 abuts the upper end surface of the outer ring 83. The side wall of the sealing silicone 7 is located between the outer ring 83 and the inner ring 84. Specifically, the inner wall of the sealing silicone 7 is closely attached to the outer wall of the inner ring 84, and the outer edge 74 is located between the inner ring 84 and the outer ring 83. The structure of the lower cover plate 8 is arranged in this way, which can make the assembly structure of the lower cover plate 8 and the sealing silicone 7 compact. More importantly, it can prevent the water inside the sealing silicone 7 from flowing out to between the shell 1 and the sealing silicone 7 (i.e., outside the sealing silicone 7) when the electric water valve is in use, causing the metal parts inside the electric water valve to rust.

[0081] The lower cover 8 has an upwardly protruding raised circle 85 between the outer ring 83 and the inner ring 84. The outer edge 74 is located between the inner and outer rings 84 and 83, with its lower end abutting the upper end of the cover. The sealing silicone 7 is made of soft silicone with a certain degree of elastic deformation. The lower cover 8 has a raised circle 85 between the outer ring 83 and the inner ring 84. When the lower end of the outer ring 83 abuts the upper end of the lower cover 8, it also abuts against the raised circle 85. The provision of raised circle 85 ensures that the lower cover 8 and the housing 1 are tightly clamped to the outer edge 74, improving the stability of the overall structure and preventing the sealing silicone 7 from loosening. It also increases the friction between the sealing silicone 7 and the cover, preventing the sealing silicone 7 from rotating freely during use.

[0082] Furthermore, if Figure 21As shown, the height H1 of the inner ring 84 is greater than the height H2 of the outer ring 83. Since the inner ring 84 is located inside the sealing silicone 7 and abuts against the inner wall of the sealing silicone 7, and the water outlet 82 is opened in the middle of the lower cover 8 (because the sealing silicone 7 needs to seal the water outlet 82, the water outlet 82 must be located on the lower cover 8 covered by the sealing silicone 7, and the water inlet 81 is also located on the lower cover 8 covered by the sealing silicone 7), therefore, designing the height H1 of the inner ring 84 to be higher can prevent the water inside the sealing silicone 7 from easily flowing out of the gap between the sealing silicone 7 and the inner ring 84, further ensuring the sealing performance and preventing the metal parts inside the electric water valve from rusting.

[0083] Further, if Figure 21 、 Figure 24 、 Figure 25 As shown, it also includes a rubber pad 101 arranged under the lower cover plate 8, and a first convex ring 1011 is provided at the edge of the lower end surface of the rubber pad 101; a second convex ring 86 is provided at the edge of the lower end surface of the lower cover plate 8, and the inner side wall of the lower seat 2 is provided with a first card groove 25 opening upward, and the first convex ring 1011 and the second convex ring 86 are inserted into the first card groove 25.

[0084] The lower seat 2 is provided with a water inlet chamber 23 and a water outlet chamber 24, which are separated by the side walls inside the lower seat 2. The lower cover plate 8 is arranged directly above the water inlet chamber 23 and the water outlet chamber 24 to cover the water inlet chamber 23 and the water outlet chamber 24, so that the water inlet chamber 23 and the water outlet chamber 24 are sealed. Water can only flow from the water inlet chamber 23 through the water inlet hole 81 into the cavity between the sealing silica gel 7 and the lower cover plate 8, and enter the water outlet chamber 24 through the water outlet hole 82. In this way, when the water outlet hole 82 is blocked, the water flow can be cut off and the electric water valve can be closed. Therefore, the lower cover plate 8 needs to cover directly above the water inlet chamber 23 and the water outlet chamber 24 and abut against the side wall separating the water inlet chamber 23 and the water outlet chamber 24. A rubber pad 101 is arranged below the lower cover plate 8, with its upper end face close to the lower end face of the lower cover plate 8 and its lower end face abutting against the side wall separating the water inlet chamber 23 and the water outlet chamber 24. The rubber pad 101 can ensure a tight fit between the lower seat 2 and the lower cover plate 8, preventing water from flowing through the gap between the lower cover plate 8 and the lower seat 2 and between the water inlet chamber 23 and the water outlet chamber 24, making it impossible to cut off or control the water flow. Specifically, the side wall of the lower seat 2 is provided with a first card slot 25 with an upward opening. The first card slot 25 is an annular card slot surrounding the side wall of the lower seat 2. The edge of the lower end face of the lower cover plate 8 is provided with a second protruding ring 86 extending downward. The rubber pad 101 is located in the area surrounded by the second protruding ring 86. The edge of the rubber pad 101 and the first protruding ring 1011 are against the inner wall of the second protruding ring 86. The first protruding ring 1011 and the second protruding ring 86 are simultaneously inserted into the first card slot 25. Such a setting can further improve the stability of the connection between the lower cover plate 8, the rubber pad 101 and the lower seat 2; the side wall of the first slot 25 near the middle of the lower seat 2 presses against the rubber pad 101, further preventing water from flowing through the gap between the lower cover plate 8 and the lower seat 2 and flowing between the water inlet chamber 23 and the water outlet chamber 24.

[0085] Furthermore, if Figure 21 、 Figure 22 、 Figure 24 、 Figure 25 As shown, the upper end surface of the rubber pad 101 is provided with an upwardly protruding third convex ring 1012 , and the lower end surface of the lower cover plate 8 is provided with an upwardly recessed annular groove 87 , and the third convex ring 1012 is clamped in the annular groove 87 .

[0086] A third protruding ring 1012 is provided near the center of the upper end surface of the rubber pad 101, and an annular groove 87 is provided near the center of the lower end surface of the lower cover plate 8. The shape and size of the annular groove 87 are adapted to the third protruding ring 1012, and the third protruding ring 1012 is retained within the annular groove 87. This arrangement facilitates assembly of the rubber pad 101 and the lower cover plate 8, and ensures a closer fit between the rubber pad 101 and the lower cover plate 8.

[0087] Furthermore, if Figures 19 to 21As shown, when the fixing frame 3 moves up and down, it can drive the sealing silicone 7 to open or close the water outlet 82; the lower cover plate 8 is provided with an upwardly protruding fourth convex ring 88 at the water outlet 82, and the fourth convex ring 88 is provided with a notch 89 that is interconnected with the water outlet 82.

[0088] The electric water valve can also be used as a wastewater valve, and the wastewater valve must ensure that water flows continuously. Therefore, the existing wastewater valve directly opens a wastewater outlet 22 at other locations of the lower cover plate 8 (such as the side or the bottom). This structure is relatively complex and it is inconvenient to clean and unclog the wastewater outlet 22. In this embodiment, the water flow is cut off by blocking the water outlet 82. Therefore, a fourth convex ring 88 is provided at the water outlet 82, and then a notch 89 is opened on the fourth convex ring 88. When the plug 33 and the sealing silicone 7 need to block the water outlet 82, the sealing silicone 7 rests on the upper end of the fourth convex ring 88. At this time, the notch 89 on the side of the fourth convex ring 88 will not be blocked. Therefore, the space inside the sealing silicone 7 can always be connected to the water outlet 82 through the notch 89. The water outlet 82 can be used as the wastewater outlet 22, meeting the requirement of the wastewater valve to keep the water flowing continuously. Compared with separately opening the wastewater outlet 22 at other positions of the lower cover plate 8, the structure of the lower cover plate 8 provided in this embodiment is relatively simple. When cleaning and unblocking the water outlet 82, it means that the wastewater outlet 22 is cleaned and unblocked, so it is more convenient to clean and unblock the wastewater outlet 22.

[0089] Further, if Figure 3 and Figure 4 As shown, a first card pin 102 is provided on the plug 33 , and the first card pin 102 passes through the sealing silicone 7 and is inserted into the water outlet hole 82 , and can move axially relative to the water outlet hole 82 .

[0090] The water outlet 82 has a small diameter. To prevent clogging by impurities in the water during use, a first needle 102 is inserted into the water outlet 82. The first needle 102 is fixed to the plug 33 and extends through the sealing silicone 7 into the water outlet 82. The rise and fall of the plug 33 drives the first needle 102 along the axis of the water outlet 82 to clean and unclog the water outlet 82. The first needle 102 automatically cleans and unclogs the water outlet 82 when the electric water valve is opened or closed, eliminating the need for separate cleaning and unclogging of the water outlet 82 and extending the service life.

[0091] Further, if Figure 3 and Figure 4 As shown, a spring 103 is sleeved on the side wall of the tightening opening 711. The spring 103 is located in the sealing silicone 7. One end of the spring 103 is bent to form a second card pin 1031. The second card pin 1031 is inserted into the water inlet hole 81 and can move axially relative to the water inlet hole 81.

[0092] Similarly, the diameter of the water inlet hole 81 is relatively small. To prevent impurities from clogging it, a second locking pin 1031 is inserted into the water inlet hole 81. A spring 103 is fitted over the sidewall of the tightening opening 711, with one end bent downward to form the second locking pin 1031. The second locking pin 1031 is inserted into the water inlet hole 81, and the plug 33 is inserted into the receiving groove 712 of the sealing silicone 7. The rising or falling of the plug 33 drives the second locking pin 1031 along the axis of the water inlet hole 81, thereby cleaning and unblocking the water inlet hole 81. As previously mentioned, the width of the tightening opening 711 is relatively small. When the spring 103 is fitted over the sidewall of the tightening opening 711, the sidewall of the receiving groove 712 also restrains the spring 103, preventing it from falling out.

[0093] The first and second clamping pins 102 and 1031 are inserted into the water outlet 82 and water inlet 81, respectively. If the plug 33 and the sealing silicone 7 are misaligned, the walls of the water outlet 82 and water inlet 81 will squeeze the first and second clamping pins 102 and 1031, respectively, ultimately causing them to bend and making it impossible to clean and clear the water outlet 82 and water inlet 81. However, the aforementioned limiting strips 325 and limiting slots 11 guide and limit the movement of the fixing frame 3, ensuring that the first and second clamping pins 102 and 1031 move only along the axis of the water outlet 82 and water inlet 81, respectively. This prevents bending of the first and second clamping pins 102 and 1031 and ensures that the water outlet 82 and water inlet 81 are cleaned and cleared effectively.

[0094] like Figure 1 、 Figure 2 and Figure 4 As shown, a filter screen 104 is provided in the water inlet 21. The filter screen 104 is made of stainless steel. Impurities in the water entering the electric water valve can be filtered out through the filter screen 104, and the impurities are prevented from blocking the water inlet 21, the water inlet hole 81, the water outlet hole 82 and the water outlet 22.

[0095] like Figure 1 As shown, the water inlet 21 and the water outlet 22 both extend outward to facilitate the installation of the electric water valve on an electrical appliance that needs to control the water fluid; a silicone gasket 105 is provided on the outer periphery of the side walls of the water inlet 21 and the water outlet 22 to make the water inlet 21 and the water outlet 22 installed more tightly with the electrical appliance to avoid water leakage.

[0096] On the other hand, the electric water valve is used in electrical appliances, and the electric water valve is used in any of the following electrical appliances: water purifiers, water purifiers, water dispensers, floor scrubbers, sweepers, garment steamers, vacuum cleaners, washing machines, and dishwashers. Many electrical appliances require the use of electric water valves. The electric water valve can be used in electrical appliances such as water purifiers, water purifiers, water dispensers, floor scrubbers, sweepers, garment steamers, vacuum cleaners, washing machines, and dishwashers that require water flow control. It has a wide range of applications and has the above-mentioned beneficial effects.

[0097] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electric water valve, characterized in that: It comprises a housing (1), a lower seat (2), a fixing frame (3), a permanent magnet (4), a magnetic core (5), a coil assembly (6), a sealing silica gel (7) and a lower cover plate (8); The coil group (6) is arranged in the housing (1) and sleeved on the magnetic core (5); the permanent magnet (4) is mounted on the fixing frame (3); and the fixing frame (3) is movably inserted on the magnetic core (5); The lower seat (2) is mounted at the lower end of the outer shell (1) and is provided with a water inlet (21) and a water outlet (22); the lower cover plate (8) is located inside the lower seat (2) and at the lower end opening of the outer shell (1); the lower cover plate (8) is provided with a water inlet hole (81) and a water outlet hole (82); The sealing silica gel (7) is arranged at the lower end of the fixing frame (3) and is located directly above the water inlet hole (81) and the water outlet hole (82); a water inlet cavity (23) and a water outlet cavity (24) spaced apart from each other are provided in the lower seat (2); the water inlet cavity (23) is in communication with the water inlet (21) and the water inlet hole (81); and the water outlet cavity (24) is in communication with the water outlet (22) and the water outlet hole (82); Under the action of the coil assembly (6), the magnetic core (5) and the permanent magnet (4) can repel or attract each other to drive the fixing frame (3) to rise or fall, and when the fixing frame (3) moves up and down, it can drive the sealing silica gel (7) to open or close the water inlet (81) or the water outlet (82); The fixing frame (3) comprises a column (31) and a mounting seat (32) arranged at one end of the column (31); a plug (33) is provided at one end of the column (31) away from the mounting seat (32); a receiving cavity (321) is provided on the mounting seat (32), and the permanent magnet (4) is installed in the receiving cavity (321); the upper end surface of the sealing silicone (7) is recessed downward to form a receiving groove (71), and the plug (33) is inserted into the receiving groove (71); the column (31) passes through the magnetic core (5) so that the permanent magnet (4) and the plug (33) are respectively located above and below the magnetic core (5).

2. An electric water valve according to claim 1, characterized in that: The side wall of the mounting seat (32) is provided with a hook (322) for hooking the permanent magnet (4), and the side wall of the mounting seat (32) is provided with a deformation groove (323) on both sides of the hook (322); the bottom surface of the accommodating cavity (321) is provided with a through groove (324) directly below the hook (322).

3. The electric water valve according to claim 1, characterized in that: The side wall of the mounting seat (32) is provided with a limiting strip (325) protruding outward, and the inner side wall of the housing (1) is provided with a limiting groove (11), and the limiting strip (325) is slidably embedded in the limiting groove (11).

4. The electric water valve according to claim 1, characterized in that: An upper cover plate (9) is provided at the upper opening of the housing (1), and the upper cover plate (9) is located directly above the fixing frame (3). A rubber plug (10) is provided on the fixing frame (3) for limiting the permanent magnet (4) from escaping from the accommodating cavity (321).

5. The electric water valve according to claim 1, characterized in that: The coil assembly (6) comprises a skeleton (61), an electromagnetic coil (62) and a shell (63); the skeleton (61) is sleeved on the magnetic core (5); the electromagnetic coil (62) is wound on the skeleton (61) and electrically connected to an external power supply; the shell (63) is mounted on the skeleton (61) and surrounds the electromagnetic coil (62); the shell (63) and the outer shell (1) are both provided with a through hole (631) for the electromagnetic coil (62) to pass through; the skeleton (61) is provided with a positioning protrusion (611), the shell (63) is provided with a positioning groove (632), and the positioning protrusion (611) is clamped in the positioning groove (632).

6. The electric water valve according to claim 1, characterized in that: The accommodating groove (71) comprises a tightening opening (711) and an accommodating groove (712) which are arranged in sequence up and down and communicate with each other, the width W1 of the tightening opening (711) is smaller than the width W2 of the accommodating groove (712), the width W3 of the plug (33) is larger than the width W1 of the tightening opening (711), and the plug (33) is embedded in the accommodating groove (712) through the tightening opening (711).

7. The electric water valve according to claim 6, characterized in that: The width W4 of the connection between the plug (33) and the column (31) is smaller than the width W1 of the tightening opening (711).

8. The electric water valve according to claim 6, characterized in that: The lower end surface of the plug (33) is provided with an upwardly concave annular groove (331), and the bottom surface of the accommodating groove (712) is provided with an upwardly protruding annular protrusion (72), and the annular protrusion (72) is embedded in the annular groove (331).

9. The electric water valve according to claim 1, characterized in that: The lower cover plate (8) is provided with an outer ring (83) and an inner ring (84), and the outer ring (83) is arranged around the outer side of the inner ring (84); the sealing silicone (7) is provided with an outer edge (74) extending outward at its lower end opening, and the outer edge (74) is located between the outer ring (83) and the inner ring (84), and the upper end surface of the outer edge (74) abuts against the lower end surface of the outer shell (1), and the lower end surface of the outer edge (74) abuts against the upper end surface of the lower cover plate (8); the lower end surface of the outer shell (1) also abuts against the upper end surface of the outer ring (83), and the outer wall of the inner ring (84) abuts against the inner wall of the sealing silicone (7).

10. The electric water valve according to claim 9, characterized in that: The height H1 of the inner ring (84) is greater than the height H2 of the outer ring (83).

11. The electric water valve according to claim 9, characterized in that: The invention also includes a rubber pad (101) arranged below the lower cover plate (8), wherein a first convex ring (1011) is provided at the edge of the lower end surface of the rubber pad (101); a second convex ring (86) is provided at the edge of the lower end surface of the lower cover plate (8); and a first clamping groove (25) with an upward opening is provided on the inner side wall of the lower seat (2), wherein the first convex ring (1011) and the second convex ring (86) are inserted into the first clamping groove (25).

12. The electric water valve according to claim 11, characterized in that: The upper end surface of the rubber pad (101) is provided with an upwardly protruding third convex ring (1012), and the lower end surface of the lower cover plate (8) is provided with an upwardly recessed annular groove (87), and the third convex ring (1012) is clamped in the annular groove (87).

13. The electric water valve according to claim 1, characterized in that: When the fixing frame (3) moves up and down, the sealing silica gel (7) can be driven to open or close the water outlet hole (82); the lower cover plate (8) is provided with a fourth convex ring (88) protruding upward at the water outlet hole (82), and the fourth convex ring (88) is provided with a notch (89) that is interconnected with the water outlet hole (82).

14. The electric water valve according to claim 1, characterized in that: The plug (33) is provided with a first clamping needle (102), which passes through the sealing silica gel (7) and is inserted into the water outlet hole (82), and can move axially relative to the water outlet hole (82).

15. The electric water valve according to claim 6, characterized in that: A spring (103) is sleeved on the side wall of the tightening opening (711), and the spring (103) is located in the sealing silicone (7). One end of the spring (103) is bent to form a second card pin (1031), and the second card pin (1031) is inserted into the water inlet hole (81) and can move axially relative to the water inlet hole (81).

16. Application of an electric water valve on an electrical appliance, characterized in that the electric water valve is applied to an electrical appliance as described in any one of claims 1 to 15, wherein the electrical appliance is any one of a water purifier, a water purifier, a water dispenser, a floor scrubber, a sweeper, a garment steamer, a vacuum cleaner, a washing machine, and a dishwasher.

Images