Electromagnetic pump having magnetization-enhancing structure

By introducing a magnetizing structure into the electromagnetic pump to enhance the magnetic field strength, the problems of high cost, low efficiency, and high temperature of electromagnetic pumps are solved, achieving more efficient and lower-cost liquid transportation.

WO2026025560A1PCT designated stage Publication Date: 2026-02-05SHENZHEN CNHT LTD
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Patent Information

Application Number
PCT/CN2024/113402
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-08-02
Filing Date
2024-08-20
Publication Date
2026-02-05

AI Technical Summary

Technical Problem

Existing electromagnetic pumps are expensive, inefficient, and have high temperature rise. Furthermore, the static and moving iron cores are prone to impact, which can damage the protective layer.

Method used

An electromagnetic pump with a magnetizing structure is used. By setting magnetizing components and magnetic yoke rings on the frame to form a closed-loop magnetic field, the magnetic field strength is enhanced. The reciprocating motion of the liquid is realized through reset components and sealing components, reducing instantaneous current and temperature rise.

Benefits of technology

It reduces production costs, improves efficiency, reduces temperature rise, prevents impact between stationary and moving iron cores, and extends service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to an electromagnetic pump having a magnetization-enhancing structure, comprising a coil assembly and a pump assembly; the coil assembly comprises a frame body, a magnetization-enhancing component, a magnetic yoke ring, and a plurality of segments of a coil; the pump assembly comprises a tube body, a moving assembly, a reset assembly, a sealing assembly, a valve core, and a discharge pipe; the sealing assembly comprises a sealing head; the moving assembly, the sealing assembly, the valve core, and the discharge pipe form a cavity within the tube body, and the moving assembly, upon being subjected to magnetic force of the magnetic yoke ring and the magnetization-enhancing component, moves within the tube body to decrease or increase a pressure of the cavity, thereby causing the valve core or the sealing head to open in order to pump water. The present invention provides the magnetization-enhancing component on the frame body, and divides the coil into a plurality of parts. When the coil is energized, the magnetization-enhancing component impedes an instantaneous current of the plurality of parts to achieve the effect of reducing the instantaneous current; the provision of the magnetization-enhancing component enhances the magnetic force exerted on the moving assembly, which causes the moving assembly to perform a reciprocating motion to pump water, thereby increasing electromagnetic attraction while greatly reducing costs and improving use efficiency.
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Description

An electromagnetic pump with a magnetizing structure Technical Field

[0001] This invention relates to the field of electromagnetic pump technology, and more specifically, to an electromagnetic pump with a magnetizing structure. Background Technology

[0002] An electromagnetic pump is a pumping device that uses an electromagnetic force to transport and flow a current-carrying fluid within a magnetic field. Specifically, it utilizes the interaction between a magnetic field and the current in a conductive fluid to create a pressure gradient in the fluid under the influence of electromagnetic force, thereby propelling the fluid into motion.

[0003] An electromagnetic pump typically consists of an electromagnetic coil, an iron core, a valve, and a pump body. When the electromagnetic coil is energized, it generates a magnetic field, causing the iron core to experience attractive or repulsive forces, which in turn open or close the valve. This creates a space with changing volume inside the pump body, through which liquid flows in and out. When the valve is open, liquid is drawn in; when the valve is closed, liquid is expelled.

[0004] Existing electromagnetic pump valve coils generate a large instantaneous current upon energization, resulting in poor magnetic focusing ability. Furthermore, existing electromagnetic pumps use pure solenoid coils with a high proportion of enameled wire. During operation, the coil generates a magnetic field, forming a magnetic circuit with an external cage and yoke. This method results in low magnetic field efficiency and high temperature rise. Reducing temperature rise can be achieved by increasing the amount of wire used, but this increases production costs. Alternatively, adding a stationary iron core inside the cylindrical tube can improve electromagnetic attraction and efficiency, but this also increases production costs. Additionally, during operation, the stationary and moving iron cores attract and collide, potentially damaging their protective layers, leading to rust and media contamination. Technical issues

[0005] The technical problem to be solved by the present invention is that the electromagnetic pumps of the prior art have high cost, low efficiency and high temperature rise. In view of the above-mentioned defects of the prior art, an electromagnetic pump with a magnetizing structure is provided. Technical solutions

[0006] The technical solution adopted by this invention to solve its technical problem is:

[0007] An electromagnetic pump with a magnetizing structure is constructed, comprising a coil assembly and a pump assembly. The coil assembly includes a frame, a magnetizing element, a magnetic yoke, and several coil segments. The magnetizing element divides the coil into segments, which are alternately arranged on the frame. The magnetizing element is mounted on the frame. The magnetic yoke is fitted onto the frame and forms a closed-loop magnetic field with the frame. The magnetizing element enhances the closed-loop magnetic field. The pump assembly is housed within the frame. The pump assembly includes a pipe, a moving assembly, a resetting assembly, a sealing assembly, a valve core, and a water outlet pipe. The pipe is mounted on the frame. The moving assembly, the resetting assembly, and the valve core are movably disposed within the pipe. The resetting assembly and... The movable component is in contact with the valve core; the movable component is detachably connected to the valve core; the outlet pipe is located on one side of the pipe body; the sealing component is located between the pipe body and the outlet pipe; the sealing component includes a sealing head located at the end of the valve core; the movable component, the sealing component, the valve core, and the outlet pipe form a cavity within the pipe body; when the coil is energized, the movable component is subjected to the magnetic force of the magnetic yoke and the magnetizing element, and squeezes the reset component within the pipe body, reducing the pressure in the cavity to open the valve core; when the coil is de-energized, the reset component resets, increasing the pressure in the cavity to open the sealing head, and reciprocating to pump water.

[0008] Furthermore, the frame is provided with at least one magnetizing element; the frame includes a skeleton and a retainer, the magnetizing element is distributed in a ring on the outside of the skeleton, and the retainer is sleeved on the outside of the skeleton.

[0009] Furthermore, the frame is provided with at least one placement block, which is sleeved on the outside of the skeleton; the placement block is detachably connected to the skeleton; the magnetizing component is provided with a locking position, the placement block is provided with an arc-shaped groove, and the locking position engages in the arc-shaped groove.

[0010] Furthermore, the reset assembly includes a first elastic element, a second elastic element, and a third elastic element; the moving assembly includes an iron core; the first elastic element, the second elastic element, and the iron core are movably disposed within the tube body, with the first elastic element and the second elastic element respectively disposed on both sides of the iron core; the third elastic element is movably disposed within the iron core and is detachably connected to the valve core.

[0011] Furthermore, a tapered hole is provided on one side of the iron core, and a limiting block corresponding to the tapered hole is provided on the valve core. The limiting block is located inside the tapered hole and is in contact with or away from the tapered hole.

[0012] Furthermore, the third elastic element is provided with a hook, and the valve core is provided with a circular hole; the hook passes through the circular hole and drives the valve core to move inside the water outlet pipe.

[0013] Furthermore, the sealing assembly includes a gasket, a dynamic sealing ring, and a static sealing ring; a stepped hole is provided on one side of the pipe body, the gasket is disposed in the stepped hole and fits against the inner wall of the stepped hole; the dynamic sealing ring is disposed in the receiving space formed by the gasket, the iron core, and the water outlet pipe; the static sealing ring is sleeved in the receiving space formed by the water outlet pipe, the pipe body, and the gasket.

[0014] Furthermore, the water outlet pipe is provided with a seat and a conical fourth elastic element; the fourth elastic element is movably disposed between the sealing head and the seat; the seat is provided with protrusions, which are distributed in a ring and face the fourth elastic element; the seat is provided with abutment blocks, which are intersectingly disposed at the center of the seat; one end of the fourth elastic element contacts the sealing head, and the other end contacts the abutment block, and is located between the protrusions.

[0015] Furthermore, the front end of the sealing head is provided with an arc-shaped block, and the water outlet pipe is provided with a groove corresponding to the front end. The arc-shaped block is either in contact with or away from the inner wall of the groove. The valve core passes through the groove and is either in contact with or away from the sealing head.

[0016] Furthermore, the iron core and / or the inner wall of the tube are coated; at least one buffer sheet is provided inside the tube, and the buffer sheet is in contact with or away from the inner wall of the tube; the iron core is in contact with or away from the buffer sheet. Beneficial effects

[0017] The beneficial effects of this invention are as follows:

[0018] This invention, by incorporating a magnetizing component on the frame, divides the enameled wire of the coil into multiple parts. When the coil is energized, the magnetizing component impedes the instantaneous current in these multiple parts, thus canceling out the induced current conducted to the magnetizing component and reducing the instantaneous current. The magnetic field around the magnetizing component is enhanced, increasing the magnetic force on the moving component when energized, causing it to reciprocate within the tube and function as a pump. This not only increases electromagnetic attraction but also significantly reduces the amount of enameled wire used, lowering costs, reducing power consumption, and improving efficiency. Furthermore, the magnetizing component has strong thermal conductivity, allowing it to conduct heat from inside the coil to the outside, reducing temperature rise. Attached Figure Description

[0019] Figure 1 is an overall structural diagram of an electromagnetic pump with a magnetizing structure according to an embodiment of the present invention;

[0020] Figure 2 is a front view schematic diagram of an electromagnetic pump with a magnetizing structure according to an embodiment of the present invention;

[0021] Figure 3 is a cross-sectional view of section AA in Figure 2 of this invention;

[0022] Figure 4 is a partially enlarged schematic diagram of point I in Figure 3 of this invention;

[0023] Figure 5 is a perspective view of the coil assembly in one embodiment of the present invention;

[0024] Figure 6 is an exploded view of an electromagnetic pump with a magnetizing structure according to an embodiment of the present invention;

[0025] Figure 7 is a three-dimensional schematic diagram of a seat body according to an embodiment of the present invention;

[0026] Figure 8 is a cross-sectional schematic diagram of a tube body with a gasket in one embodiment of the present invention;

[0027] Figure 9 is a graph showing the temperature rise of the coil without a magnetizing element in one embodiment of the present invention;

[0028] Figure 10 is a graph showing the temperature rise of a coil equipped with a magnetizing element in one embodiment of the present invention.

[0029] Labeling Explanation: Coil Assembly 1, Pump Assembly 2, Coil 11, Frame 12, Magnetizing Component 13, Magnetic Yoke Ring 14, Upper Magnetic Yoke Ring 141, Lower Magnetic Yoke Ring 142, Circular Hole 252, Locking Position 131, Tube Body 21, Moving Assembly 22, Reset Assembly 23, Sealing Assembly 24, Valve Core 25, Water Outlet Pipe 26, Sealing Nozzle 241, Cavity 200, Placement Block 121, Retainer 122, Frame 123, Connector 124. Arc groove 1211, first elastic element 231, second elastic element 232, third elastic element 233, iron core 221, conical hole 2211, limiting block 251, gasket 242, dynamic sealing ring 2421, static sealing ring 2422, stepped hole 211, fourth elastic element 261, seat 262, protrusion 2621, abutting block 2622, arc block 2411, groove 263, buffer plate 212. Embodiments of the present invention

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0031] Please refer to Figures 1-6. This invention proposes an electromagnetic pump with a magnetizing structure, including a coil assembly 1 and a pump assembly 2. The coil assembly 1 includes a frame 12, a magnetizing element 13, a magnetic yoke 14, and several coil segments 11. The magnetizing element 13 divides the coil segments 11 into several segments, which are alternately arranged on the frame 12. The magnetizing element 13 is located on the frame 12, and the magnetic yoke 14 is sleeved on the frame 12, forming a closed-loop magnetic field with the frame 12. The magnetizing element 13 is used to enhance the closed-loop magnetic field. The pump assembly 2 is located inside the frame 12. The pump assembly 2 includes a pipe body 21, a moving assembly 22, a resetting assembly 23, a sealing assembly 24, a valve core 25, and a water outlet pipe 26. The pipe body 21 is located on the frame 12. The moving assembly 22, the resetting assembly 23, and the valve core 25 are movably disposed inside the pipe body 21. The resetting assembly 23 contacts the moving assembly 22. The moving component 22 is detachably connected to the valve core 25; the outlet pipe 26 is located on one side of the pipe body 21; the sealing component 24 is located between the pipe body 21 and the outlet pipe 26; the sealing component 24 includes a sealing head 241, which is located at the end of the valve core 25; the moving component 22, the sealing component 24, the valve core 25, and the outlet pipe 26 form a sealed cavity 200 within the pipe body 21. When the coil 11 is energized, the moving component 22 is subjected to the magnetic force of the yoke ring 14 and the magnetizing component 13, and squeezes the reset component 23 within the pipe body 21. At this time, the pressure in the cavity 200 decreases, thereby opening the valve core 25; when the alternating current reaches the second half of the cycle, the reset component 23 resets. At this time, the pressure in the cavity 200 increases to open the sealing head 241, and reciprocates to pump water; during this period, the magnetizing component 13 enhances the magnetic force of the yoke ring 14.

[0032] In this embodiment, the coil assembly 1 and the pump assembly 2 are detachably or fixedly connected; specifically, the frame 12 includes a retainer 122 and a skeleton 123, with the retainer 122 sleeved on the outside of the skeleton 123 and the coil 11 sleeved on the skeleton 123; the retainer 122 and the skeleton 123 are respectively provided with through holes, and the tube 21 in the pump assembly 2 passes through the through holes of the retainer 122 and the skeleton 123; in a specific embodiment, a connector 124 is provided on one side of the frame 12, and the connector 124 and The retainer 122 is provided with threaded holes. After aligning the through holes of the retainer 122 with the through holes of the frame 123, the tube 21 is inserted, and then the connector 124 is inserted into the tube 21. Screws are then screwed into the threaded holes of the connector 124 and the retainer 122 in sequence. In another specific embodiment, the connector 124 and the retainer 122 each have two threaded holes, arranged diagonally, so only two screws are needed to assemble and fix the pump assembly 2 and the coil assembly 1. In another specific embodiment, the coil assembly 1 and the pump assembly 2 are detachably connected, that is, the pump assembly 2 is inserted into the through holes of the retainer 122 and the frame 123. When it is necessary to replace the parts, the pump assembly 2 is pulled out and replaced.

[0033] The coil assembly 1 also includes a magnetizing element 13, a magnetic yoke 14, and several coil segments 11. The coil segments 11 are arranged together with the magnetizing element 13 on the frame 123, and are electrically connected. Compared to setting a single coil segment on the frame 123, the segmented arrangement saves costs and reduces the amount of enameled wire used. In one specific embodiment, the magnetizing element 13 divides the coil 11 into two segments and is positioned in the middle of the coil 11. Therefore, the location of the magnetizing element 13 does not require a coil 11, and it can provide a large magnetic force. Working together with the magnetic yoke 14, it magnetically attracts the moving assembly 22, allowing it to move horizontally within the tube 21. The coil 11 and the magnetic yoke 14 are respectively disposed on the frame 123, and the cage 122 is disposed on the outside of the frame 123. When the electromagnetic pump is working, the coil 11 generates a magnetic field after being energized. The external magnetic field is guided by the cage 122, and the magnetic yoke 14 guides the internal magnetic field and works together with the cage 122 to form a closed loop of the magnetic field. In a specific embodiment, the magnetic yoke 14 includes an upper magnetic yoke 141 and a lower magnetic yoke 142. The positions of the upper magnetic yoke 141 and the lower magnetic yoke 142 are limited by the placement holes provided in the frame 123. The upper magnetic yoke 141 and the lower magnetic yoke 142 guide the internal magnetic field and work together with the cage 122 to form a closed loop of the magnetic field.

[0034] The cage 122, yoke 14, and magnetizing element 13 are provided as magnetic conductors; the magnetizing element is used to enhance the magnetic force. In one specific embodiment, the magnetizing element 13 is a magnet and has magnetic properties; the magnetizing element 13 is distributed in a ring on the cage 12; in another specific embodiment, there are four magnetizing elements 13, which are distributed in a ring on the outside of the cage 12; in another specific embodiment, the magnetizing element 13 is a sheet, mounted on the frame 123, and divides the coil 11 into two parts; in yet another specific embodiment, the magnetizing element 13 is cylindrical and is provided on the frame 123.

[0035] Specifically, the position of the magnetizing component 13 can be set according to the usage requirements of the electromagnetic pump. When a larger pressure and flow rate are required for the electromagnetic pump, the magnetizing component 13 is positioned close to the lower yoke ring 142 to increase the magnetic force around the lower yoke ring 142, thereby obtaining greater pressure and a larger stroke. After the electromagnetic pump runs dry, the moving component 22 will encounter greater resistance and stop moving. At this time, the magnetizing component 13 is placed in the middle position between the upper yoke ring 141 and the lower yoke ring 142, so that the initial electromagnetic force is enhanced and the resistance is overcome to move.

[0036] When the coil 11 is energized, the magnetic yoke 14 and the magnetizing component 13 together generate a magnetic field, which is conducted to the moving component 22. At this time, the magnetizing component 13 strengthens the magnetic force generated by the magnetic flux inside the coil 11. The moving component 22 moves to the left under the action of the magnetic yoke 14. At the same time, the volume of the sealed cavity 200 formed by the moving component 22, the sealing component 24, the valve core 25 and the water outlet pipe 26 in the pipe body 21 increases and the pressure decreases. At this time, the valve core 25 is passively opened to balance the pressure in the cavity 200. The current used is alternating current. After the current passes through the diode, there will be half a cycle of current. Therefore, during the process of the electromagnetic pump going from energized to de-energized, the reset component 23 resets after compression and deformation and pushes out the moving component 22, causing the moving component 22 to move to the right. At the same time, the volume of the cavity 200 decreases and the pressure increases, causing the sealing head 241 to open to balance the pressure. The pumping works in a reciprocating manner. In one embodiment, the coil assembly 1 is externally connected to a current regulating module to adjust the current in the coil, reducing energy waste. In another embodiment, the coil assembly 1 is externally connected to a control module and a display screen, allowing operators to control and monitor the operating status of the electromagnetic pump, improving work efficiency and reducing damage to the electromagnetic pump caused by operational errors.

[0037] This invention, by setting a magnetizing component 13 on the frame 12, can divide the enameled wire of the coil 11 into multiple parts. When the coil 11 is energized, the magnetizing component 13 will impede the instantaneous current of multiple parts, and the induced current conducted to the magnetizing component 13 will be correspondingly canceled, thereby reducing the instantaneous current. Since the magnetizing component 13 is magnetic, the magnetic field around the magnetizing component 13 will be enhanced. When energized, the magnetic force on the moving component 22 will be enhanced, and it will reciprocate within the tube 21, thus acting as a pump. The magnetizing component 13 not only increases the electromagnetic attraction, but also greatly reduces the amount of enameled wire used, lowers the cost, reduces power consumption, and increases efficiency.

[0038] Please refer to Figures 2-6. The frame 12 is provided with at least one magnetizing element 13. The magnetizing element 13 is arc-shaped or columnar. The frame 12 includes a skeleton 123 and a retainer 122. The magnetizing element 13 is distributed in a ring on the outside of the skeleton 123, and the retainer 122 is sleeved on the outside of the skeleton 123.

[0039] In specific implementations: the magnetizing element 13 is made of magnet and has magnetic properties; in one specific embodiment, the magnetizing element 13 is an arc-shaped sheet, mounted on the frame 123, and distributed in a ring shape, dividing the coil 11 into multiple parts; when the coil 11 is energized, the magnetizing element 13 will impede the instantaneous current of multiple parts, and the induced current conducted to the magnetizing element 13 will be correspondingly canceled, so as to reduce the instantaneous current; in another specific embodiment, the magnetizing element 13 is cylindrical and disposed on the frame 123; the retainer 122 is disposed on the outside of the frame 123. When the coil 11 is energized, a magnetic field is generated. The external magnetic field is guided by the retainer 122, and the upper magnetic yoke ring 141 and the lower magnetic yoke ring 142 guide the internal magnetic field. Together with the retainer 122, they form a closed loop of magnetic field. During this period, the magnetizing element 13 can increase the magnetic force.

[0040] Specifically, the magnetizing component 13 is disposed on the frame 123. When a large pressure and flow rate electromagnetic pump is required, the magnetizing component 13 is disposed near the lower magnetic yoke ring 142 to increase the magnetic force around the lower magnetic yoke ring 142 in order to obtain a larger pressure and a larger stroke. After the electromagnetic pump runs dry, the moving component 22 will stop moving due to a large resistance. At this time, the magnetizing component 13 is placed in the middle position between the upper magnetic yoke ring 141 and the lower magnetic yoke ring 142 to enhance the initial electromagnetic force and overcome the resistance to move.

[0041] Please refer to Figures 2-6. The frame 12 is provided with at least one placement block 121, which is sleeved on the outside of the skeleton 123. The placement block 121 is integrally formed with the frame 12 or can be detachably connected. The magnetizing component 13 is provided with a locking position 131. The placement block 121 is provided with an arc-shaped groove 1211. The magnetizing component 13 is located in the arc-shaped groove 1211, and the locking position 131 is engaged in the arc-shaped groove 1211.

[0042] In specific implementations: the placement block 121 is located on the outside of the frame 123; the placement block 121 is integrally formed with the frame 12 or detachably connected; in one specific embodiment, the placement block 121 is cylindrical and located on the outside of the frame 123, and is integrally formed with the frame 123; in another specific embodiment, the placement block 121 is arc-shaped and there are two of them, respectively located on both sides of the frame 123 and engaged; this facilitates disassembly and position replacement; the placement block 121 is provided with an arc-shaped groove 1211, and the magnetizing component 13 is provided with a locking position 131. In one specific embodiment, the magnetizing component 13 is embedded in the arc-shaped groove 1211; in another specific embodiment, the magnetizing component 13 is engaged in the arc-shaped groove 1211, and the locking position 131 engages with the arc-shaped groove 1211; the locking position 131 of the magnetizing component 13 can fix the magnetizing component 13 to the frame 123 and prevent it from falling off.

[0043] Please refer to Figures 2-6. The reset assembly 23 includes a first elastic element 231, a second elastic element 232, and a third elastic element 233; the moving assembly 22 includes an iron core 221; the first elastic element 231, the second elastic element 232, and the iron core 221 are respectively movably disposed within the tube body 21; and the iron core 221 is disposed between the first elastic element 231 and the second elastic element 232; the third elastic element 233 is movably disposed within the iron core 221 and is detachably connected to the valve core 25.

[0044] In specific implementation: the first elastic element 231 and the second elastic element 232 are springs, and the third elastic element 233 is a tension spring; the moving component 22 includes an iron core 221, which is made of iron and can move inside the tube 21 after being magnetically attracted. Specifically, after the coil 11 is energized, the iron core 221 moves to the left under the magnetic force of the magnetic yoke 14 and the magnetizing element 13. At the same time, the volume of the sealed cavity 200 formed by the moving component 22, the sealing component 24, the valve core 25 and the water outlet pipe 26 in the tube 21 increases and the pressure decreases. At this time, the valve core 25 is passively opened to balance the pressure inside the cavity 200. In the next cycle of the current, the first elastic element 231 is reset, causing the iron core 221 to move to the right. At the same time, the volume of the cavity 200 decreases and the pressure increases, causing the sealing head 241 to open and pump out the liquid. The first elastic element 231 and the second elastic element 232 are disposed inside the tube 21 and on both sides of the iron core 221. The second elastic element 232 can buffer the iron core 221. After the coil 11 is energized, the magnetic yoke 14 generates magnetic force and moves inside the tube 21 under the action of magnetic force. When the iron core 221 moves to the left, it will apply pressure to the first elastic element 231. The first elastic element 231 is compressed and deformed after being subjected to force. Then the first elastic element 231 returns to its original position, and the iron core 221 moves to the right, squeezing the second elastic element 232. At this time, the second elastic element 232 buffers the iron core 221 and avoids large wear on the tube 21.

[0045] Please refer to Figures 2-6. A tapered hole 2211 is provided on one side of the iron core 221. A limiting block 251 corresponding to the tapered hole 2211 is provided on the valve core 25. The limiting block 251 is located inside the tapered hole 2211 and is in contact with or away from the tapered hole 2211.

[0046] In specific implementation: the iron core 221 is provided with a conical hole 2211, and the valve core 25 is provided with a limiting block 251 corresponding to the conical hole 2211, and the limiting block 251 is conical and located inside the conical hole 2211; during operation, the iron core 221 drives the valve core 25 to move, so that the valve core 25 contacts or moves away from the conical hole 2211; the conical shape of the conical hole 2211 and the limiting block 251 can limit the valve core 25; when the iron core 221 drives the third elastic element 233 to move to the left, the limiting block 251 of the valve core 25 contacts the conical hole 2211, at which time the conical hole 2211 and the limiting block 251 fit together to limit the valve core 25; the valve core 25 is confined within the accommodating space between the front end of the iron core 221 and the outlet pipe 26.

[0047] Please refer to Figures 2-6. The third elastic element 233 is provided with a hook, and the valve core 25 is provided with a circular hole 252. The hook passes through the circular hole 252 and drives the valve core 25 to move in the water outlet pipe 26.

[0048] In specific implementation: the third elastic element 233 is a tension spring, and the hook provided by the tension spring is installed in conjunction with the circular hole 252 provided by the valve core 25. That is, the hook is passed through the circular hole, so that the valve core 25 can move under the drive of the third elastic element 233 to realize the opening and closing of the valve core 25. The assembly method of the hook and the circular hole 252 makes it easy to disassemble and replace.

[0049] Please refer to Figures 2-5. The sealing assembly 24 includes a gasket 242, a dynamic sealing ring 2421, and a static sealing ring 2422. A stepped hole 211 is provided on one side of the pipe body 21. The gasket 242 is disposed in the stepped hole 211 and fits against the inner wall of the stepped hole 211. The dynamic sealing ring 2421 is disposed in the receiving space formed by the gasket 242, the iron core 221, and the water outlet pipe 26. The static sealing ring 2422 is sleeved in the receiving space formed by the water outlet pipe 26, the pipe body 21, and the gasket 242.

[0050] In specific implementation: the pipe body 21 is provided with a stepped hole 211, the gasket 242 is provided in the stepped hole 211 and fits against the inner wall of the stepped hole 211; the other end of the gasket 242 fits against the water outlet pipe 26 to prevent the water outlet pipe 26 from moving axially; the dynamic sealing ring 2421 is sleeved on the outside of the iron core 221 and is located in the receiving space formed by the gasket 242, the iron core 221 and the water outlet pipe 26; the static sealing ring 2422 is sleeved on the outside of the water outlet pipe 26 and is located in the receiving space formed by the water outlet pipe 26, the pipe body 21 and the gasket 242.

[0051] Please refer to Figures 2-7. The water outlet pipe 26 is provided with a seat 262 and a cone-shaped fourth elastic element 261. The fourth elastic element 261 is movably disposed between the sealing head 241 and the seat 262. The seat 262 is provided with protrusions 2621, which are distributed in a ring and face the fourth elastic element 261. The seat 262 is provided with abutment blocks 2622, which are cross-arranged at the center of the seat 262. One end of the fourth elastic element 261 contacts the sealing head 241, and the other end contacts the abutment block 2622, and is located between the protrusions 2621.

[0052] In specific implementation: the fourth elastic element 261 and the seat 262 are respectively installed inside the water outlet pipe 26, and the fourth elastic element 261 is a conical spring. The front end of the fourth elastic element 261 contacts the sealing rubber head 241, and the other end contacts the seat 262. The conical shape of the fourth elastic element 261 provides good shock absorption and buffering capabilities. It can deform under pressure, thereby absorbing energy and protecting the sealing rubber head 241. The seat 262 is provided with a protrusion 2621, and... The protrusions 2621 are arranged in a ring and a fourth elastic element 261 is provided facing the seat 262. The fourth elastic element 261 is used to limit the fourth elastic element 261 and prevent it from detaching from the seat 262. The seat 262 is provided with abutment blocks 2622, which are arranged crosswise at the center of the seat 262 and are used to abut against the fourth elastic element 261. The abutment blocks 2622 are arranged crosswise at the center of the seat 262 and are also provided with hollowed-out portions for liquid to flow.

[0053] Specifically, when the sealing head 241 is displaced in the horizontal direction, the fourth elastic element 261 will deform or reset; when the iron core 221 moves to the right, the sealing head 241 is opened, moves to the right and squeezes the fourth elastic element 261, causing the fourth elastic element 261 to be compressed and deformed; then the fourth elastic element 261 resets.

[0054] Please refer to Figures 2-7. The front end of the sealing head 241 is provided with an arc-shaped block 2411, and the water outlet pipe 26 is provided with a groove 263 corresponding to the front end. The arc-shaped block 2411 is in contact with or away from the inner wall of the groove 263. The valve core 25 passes through the groove 263 and is in contact with or away from the sealing head 241.

[0055] In specific implementation: the front end of the sealing head 241 is provided with an arc-shaped block 2411, and the water outlet pipe 26 is provided with a groove 263 corresponding to the front end, with the front end fitting against the inner wall of the groove 263; the arc shape of the arc-shaped block 2411 and the groove 263 allows for better fitting, increasing the contact area and improving the sealing performance of the cavity 200; when the iron core 221 moves to the right, the pressure inside the cavity 200 increases, at which point the sealing head 241 is stretched open, that is, the front end of the sealing head 241 moves away from the groove 263 and squeezes the fourth elastic element 261; then the fourth elastic element 261 resets, so that the front end of the sealing head 241 fits against the groove 263, and together with the iron core 221, the dynamic sealing ring 2421, the valve core 25 and the water outlet pipe 26, a sealed cavity 200 is formed again.

[0056] Please refer to Figure 8. The inner wall of the iron core 221 and / or the tube 21 is coated; at least one buffer plate 212 is provided inside the tube 21, and the buffer plate 212 is attached to the inner wall of the tube 21; the iron core 221 is in contact with or away from the buffer plate 212.

[0057] In specific implementations: In one embodiment, the outer side of the iron core 221 is coated with a nano-coating; this prevents rusting and contamination of the medium; reduces wear and tear, and improves service life. In another embodiment, the inner wall of the tube 21 is provided with a buffer layer, either by brushing or by forming a cylinder and directly fitting it inside; this buffers the movement of the iron core 221 within the tube 21. In yet another embodiment, both the outer side of the iron core 221 and the inner wall of the tube 21 are coated, which improves the service life of both the iron core 221 and the tube 21. The buffer sheet 212 is fitted against the inner wall of the tube 21. In one specific embodiment, the buffer sheet 212 is sheet-shaped and made of silicone. When the iron core 221 moves inside the tube 21, it is easy to hit both ends of the tube 21, which can easily generate a lot of noise. In another specific embodiment, there are two buffer sheets 212, which are respectively located at both ends of the tube 21. After the iron core 221 moves inside the tube 21, it contacts the buffer sheet 212 and squeezes the buffer sheet 212. At this time, the buffer sheet 212 absorbs the kinetic energy to play a buffering role, which can reduce the noise generated by the electromagnetic pump during operation and improve its service life.

[0058] Please refer to Figures 9 and 10. Figure 9 shows the coil without a magnetizing element, with a wire diameter of 0.23 mm and a weight of 150 g. The temperature rise of the coil in this case is 141.64547619 °C. Figure 10 shows the coil with a magnetizing element, a wire diameter of 0.18 mm, and a weight of 80 g. The temperature rise of the coil in this case is 84.59421488 °C. In summary, after adding the magnetizing element 13 to coil 11, the temperature rise of coil 11 is much smaller than that without the magnetizing element 13, and the flow rate change rate is smaller, resulting in greater stability. This demonstrates that the magnetizing element 13 has strong thermal conductivity, enabling it to conduct heat from inside coil 11 to the outside, reducing temperature rise. Simultaneously, the weight of the enameled wire used is smaller, significantly reducing costs.

[0059] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0060] The above description is only a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural changes made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An electromagnetic pump having a magnetically enhanced structure comprising a coil assembly and a pump assembly; characterized by, The coil assembly comprises a frame, a magnetic enhancer, a magnetic yoke and a plurality of coil segments, the magnetic enhancer separates the coil into a plurality of segments and is arranged between the coil segments on the frame, the magnetic enhancer is arranged on the frame, the magnetic yoke is sleeved on the frame and forms a closed magnetic field with the frame, the magnetic enhancer is used for enhancing the closed magnetic field, the pump assembly is arranged in the frame, the pump assembly comprises a pipe body, a moving assembly, a reset assembly, a sealing assembly, a valve core and a water outlet pipe, the pipe body is arranged on the frame, the moving assembly, the reset assembly and the valve core are movably arranged in the pipe body, the reset assembly is in contact with the moving assembly, the moving assembly is detachably connected with the valve core, the water outlet pipe is arranged on one side of the pipe body, the sealing assembly is arranged between the pipe body and the water outlet pipe, the sealing assembly comprises a sealing rubber head arranged at the end of the valve core. The moving assembly, the sealing assembly, the valve core and the water outlet pipe form a cavity in the pipe body. The coil is energized, the moving assembly is subjected to the magnetic force of the magnetic yoke and the magnetic enhancer, and the reset assembly is pressed in the pipe body, the pressure of the cavity is reduced, and the valve core is opened, the coil is de-energized, the reset assembly is reset, the pressure of the cavity is increased, the sealing rubber head is opened, and reciprocating motion is performed to pump water.

2. The electromagnetic pump with a magnetized structure according to claim 1, characterized in that, The frame is provided with at least one magnetic enhancer, the frame comprises a skeleton and a retaining frame, the magnetic enhancers are annularly distributed outside the skeleton, and the retaining frame is sleeved outside the skeleton.

3. The electromagnetic pump with a magnetized structure according to claim 2, characterized in that, The frame is provided with at least one placing block, the placing block is sleeved outside the skeleton, and the placing block is detachably connected with the skeleton. The magnetic enhancer is provided with a clamping position, the placing block is provided with an arc-shaped groove, and the clamping position is clamped in the arc-shaped groove.

4. The electromagnetic pump with a magnetized structure according to claim 1, characterized in that, The reset assembly comprises a first elastic member, a second elastic member and a third elastic member, and the moving assembly comprises an iron core. The first elastic member, the second elastic member and the iron core are movably arranged in the pipe body, and the first elastic member and the second elastic member are arranged on the two sides of the iron core respectively. The third elastic member is movably arranged in the iron core and detachably connected with the valve core.

5. The electromagnetic pump with a magnetized structure according to claim 4, characterized in that, One side of the iron core is provided with a tapered hole, the valve core is provided with a limiting block corresponding to the tapered hole, and the limiting block is arranged in the tapered hole and in contact with or away from the tapered hole.

6. The electromagnetic pump with a magnetized structure according to claim 4, characterized in that, The third elastic member is provided with a hook, and the valve core is provided with a circular hole; the hook penetrates through the circular hole and drives the valve core to move in the water outlet pipe.

7. The electromagnetic pump with a magnetized structure according to claim 6, characterized in that, The sealing assembly comprises a gasket, a dynamic sealing ring and a static sealing ring. One side of the pipe body is provided with a stepped hole, the gasket is arranged in the stepped hole and attached to the inner wall of the stepped hole. The dynamic sealing ring is arranged in the accommodating space formed by the gasket, the iron core and the water outlet pipe. The static sealing ring is sleeved in the accommodating space formed by the water outlet pipe, the pipe body and the gasket.

8. The electromagnetic pump with a magnetized structure according to claim 7, characterized in that, The water outlet pipe is internally provided with a seat body and a fourth elastic member in a conical shape; the fourth elastic member is movably arranged between the seal head and the seat body; the seat body is provided with protrusions which are annularly distributed and face the fourth elastic member; the seat body is provided with abutting blocks which are crosswise arranged at the center of the seat body; one end of the fourth elastic member is in contact with the seal head, the other end is in contact with the abutting blocks and is located between the protrusions.

9. The electromagnetic pump with a magnetized structure according to claim 8, characterized in that, The front end of the seal head is provided with an arc-shaped block, the water outlet pipe is internally provided with a groove corresponding to the front end, and the arc-shaped block is in contact with or away from the inner wall of the groove.

10. The electromagnetic pump with a magnetized structure according to claim 9, characterized in that, The iron core and / or the inner wall of the pipe body is provided with a coating; The pipe body is internally provided with at least one buffer sheet which is in contact with or away from the inner wall of the pipe body; the iron core is in contact with or away from the buffer sheet.

Citation Information

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