Electromagnetic pump with heat dissipation structure

Abstract

The utility model provides an electromagnetic pump with a heat dissipation structure, which comprises a coil assembly and a pump assembly, and the coil assembly is fixedly connected with the pump assembly. The coil assembly comprises a retainer, a framework, a magnet yoke ring and a plurality of coils, baffles are arranged on the two sides of the framework, a protruding block is arranged in the middle of the framework, the baffles and the protruding block form a first groove and a second groove, the protruding block is provided with a third groove, and the coils are arranged on the framework in a sleeving mode and arranged in the first groove and the second groove. The coils in the first groove and the second groove are connected through a third groove; a limiting hole is formed in the framework, and the magnet yoke ring is embedded in the limiting hole; the limiting holes are formed in the framework, the magnetic yoke ring can be simply and accurately installed to achieve the magnetic conduction function, and the operation stability of the electromagnetic pump can be effectively improved; the coil is divided into two parts, so that the heat dissipation area of the coil can be increased, the number of turns of the coil can be reduced, the operating temperature of the electromagnetic pump can be effectively reduced, and the production cost of the electromagnetic pump can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic pumps, in particular to an electromagnetic pump with a heat dissipation structure. Background Art

[0002] The electromagnetic pump is a contactless indirect transmission pump. The electromagnetic pump has a simple structure, good sealing, reliable operation, and does not require a shaft seal. Therefore, it is widely used in the field of pumping liquids.

[0003] Electromagnetic pumps are usually composed of a coil, an iron core, a valve core, and a pump body. When the coil is energized, a magnetic field is generated, and the iron core moves back and forth due to the attractive or repulsive force, causing the volume and pressure of the sealed cavity to change. The liquid is then sucked into or discharged from the pump body due to the pressure difference, and the reciprocating motion realizes the function of pumping liquid.

[0004] Existing electromagnetic pumps mostly use a whole solenoid coil, and the coil mostly uses enameled wire. The magnetism generated by the coil is conducted by the external retaining frame and magnetic yoke ring. The magnetic field utilization efficiency is low, and the temperature rise will be relatively high. To reduce the temperature rise, the amount of wire used can be increased, and the cost will increase accordingly. Therefore, the existing electromagnetic pumps have the disadvantages of high temperature, high cost and low magnetic field utilization rate. Utility Model Content

[0005] The utility model provides an electromagnetic pump with a heat dissipation structure, so as to more accurately solve the problems of high temperature, high cost and low magnetic field utilization rate of the electromagnetic pump.

[0006] The utility model is achieved through the following technical solutions:

[0007] The utility model proposes an electromagnetic pump with a heat dissipation structure, comprising a coil assembly and a pump assembly, wherein the coil assembly is fixedly connected to the pump assembly; the coil assembly comprises a retaining frame, a skeleton, a magnetic yoke ring and several sections of coils, baffles are provided on both sides of the skeleton, a protrusion is provided in the middle of the skeleton, the baffle and the protrusion form a first groove and a second groove, the protrusion is provided with a third groove, the coil is sleeved on the skeleton and arranged in the first groove and the second groove, and the coils in the first groove and the second groove are connected through the third groove; a limiting hole is provided inside the skeleton, and the magnetic yoke ring is embedded in the limiting hole; the skeleton is placed in the retaining frame, and the skeleton is fixedly connected to the retaining frame.

[0008] Furthermore, the pump assembly includes a pump tube, a movable assembly, a valve core, a sealing assembly and a liquid outlet pipe; the skeleton is hollow; the pump tube axially passes through the skeleton, one end of the pump tube is the liquid inlet end, and the other end is fixedly connected to the liquid outlet pipe; the movable assembly is movably arranged in the pump tube.

[0009] Furthermore, the sealing assembly includes a static sealing ring, a gasket, a dynamic sealing ring, a sealing rubber head, a tower spring and a spring seat. The static sealing ring and the gasket are arranged on the liquid outlet pipe, and the dynamic sealing ring, the sealing rubber head, the tower spring and the spring seat are arranged in the liquid outlet pipe.

[0010] Furthermore, the movable component includes an iron core and an elastic member, the elastic member includes a main compression spring and a buffer compression spring, the main compression spring is movably arranged between the liquid inlet end of the pump tube and the iron core, and the buffer compression spring is movably arranged between the iron core and the liquid outlet pipe.

[0011] Furthermore, one end of the iron core is movably disposed in the pump tube, and the other end is movably disposed in the liquid outlet pipe.

[0012] Furthermore, the iron core is hollow, and the elastic member further includes a tension spring, which is arranged in the iron core, and has one end fixedly connected to the iron core and the other end fixedly connected to the valve core.

[0013] Furthermore, the valve core is movably arranged in the iron core in the liquid outlet pipe.

[0014] Furthermore, the dynamic sealing ring is movably arranged in the liquid outlet pipe, the dynamic sealing ring is sleeved on the iron core in the liquid outlet pipe, the gasket is arranged between the pump pipe and the liquid outlet pipe, and the static sealing ring is arranged between the gasket and the liquid outlet pipe.

[0015] Furthermore, the spring seat and tower spring are arranged in the liquid outlet pipe, the spring seat is fixedly connected to the liquid outlet pipe, one end of the tower spring is fixedly connected to the spring seat, and the other end is fixedly connected to the sealing rubber head, and the sealing rubber head is movably arranged in the liquid outlet pipe.

[0016] Furthermore, the pump assembly also includes a connector, which is provided with a through hole, the diameter of which is smaller than the maximum diameter of the liquid outlet pipe, one end of the connector is fixedly connected to the retaining frame, and the other end is fixedly connected to the liquid outlet pipe, and the pump assembly and the coil assembly are fixedly connected through the connector.

[0017] Beneficial effects of the utility model:

[0018] 1. The utility model proposes to divide the coil into two parts, which can increase the heat dissipation area of ​​the coil and effectively reduce the operating temperature of the electromagnetic pump.

[0019] 2. The utility model proposes to divide the coil into two parts, which can reduce the number of coil turns and effectively reduce the production cost of the electromagnetic pump.

[0020] 3. The present invention provides a limiting hole for installing a magnetic yoke ring on the skeleton of the coil assembly, which can accurately install the magnetic yoke to achieve the magnetic conductivity function and effectively improve the stability of the electromagnetic pump operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall structural diagram of an electromagnetic pump with a heat dissipation structure in one embodiment of the present utility model;

[0022] Figure 2 This is an exploded view of an electromagnetic pump with a heat dissipation structure in one embodiment of the present invention;

[0023] Figure 3 This is a front view of an electromagnetic pump with a heat dissipation structure in one embodiment of the present utility model;

[0024] Figure 4 For the utility model Figure 3 Schematic cross-sectional view at AA in the middle;

[0025] Figure 5 This is a three-dimensional schematic diagram of a coil assembly in one embodiment of the present utility model;

[0026] Figure 6 This is a three-dimensional schematic diagram of a skeleton in one embodiment of the present utility model;

[0027] Figure 7 This is a front view of a coil assembly in one embodiment of the present invention;

[0028] Figure 8 For the utility model Figure 7 Schematic cross-sectional view at AA in the middle.

[0029] Explanation of the numbers: 1. Lower magnetic yoke; 2. Retaining frame; 3. Coil; 4. Upper magnetic yoke; 5. Pump tube; 6. Main compression spring; 7. Tension spring; 8. Iron core; 9. Valve core; 10. Buffer compression spring; 11. Gasket; 12. Dynamic sealing ring; 13. Static sealing ring; 14. Liquid outlet pipe; 15. Sealing rubber head; 16. Tower spring; 17. Spring seat; 18. Connector; 19. Screw; 31. Rubber coating; 32. Enameled wire; 33. Diode; 34. Contact piece; 35. Terminal; 36. Skeleton; 361. First groove; 362. Second groove; 363. Third groove; 364. Bump; 365. Baffle. DETAILED DESCRIPTION

[0030] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0031] Please refer to Figures 1-8The present invention proposes an electromagnetic pump with a heat dissipation structure, including a coil assembly and a pump assembly, which is fixedly connected to the pump assembly; the coil assembly includes a retaining frame 2, a skeleton 36 yoke ring, and several sections of coils 3, baffles 365 are provided on both sides of the skeleton 36, and a protrusion 364 is provided in the middle of the skeleton 36, the baffle 365 and the protrusion 364 form a first groove 361 and a second groove 362, and the protrusion 364 is provided with a third groove 363, the coil 3 is sleeved on the skeleton 36 and embedded in the first groove 361 and the second groove 362, and the coil 3 in the first groove 361 and the second groove 362 is connected through the third groove 363; a limiting hole is provided inside the skeleton 36, and the yoke ring is embedded in the limiting hole; the skeleton 36 is placed in the retaining frame 2, and the skeleton 36 is fixedly connected to the retaining frame 2.

[0032] In this embodiment, an electromagnetic pump with a heat dissipation structure includes a coil assembly and a pump assembly, and the coil assembly is fixedly connected to the pump assembly; the coil assembly includes a retaining frame 2, a frame 36 yoke ring, and a plurality of coil sections 3; in a specific embodiment, the frame 36 is hollow cylindrical, and the frame 36 can be made of rubber or plastic; annular baffles 365 are provided on both sides of the outer side of the frame 36, and an annular protrusion 364 is provided in the middle of the outer side of the frame 36, and the annular baffle 365 and the annular protrusion 364 form a first groove 36 1 and the second groove 362, the annular protrusion 364 is further provided with a third groove 363, the coil 3 is sleeved on the skeleton 36 and embedded in the first groove 361 and the second groove 362, the first groove 361 and the coil 3 in the second groove 362 are connected through the third groove 363; in a specific embodiment, the coil 3 includes an enameled wire 32, a rubber coating 31, a contact piece 34 and a terminal 35, the rubber coating 31 is provided on the outside of the coil 3 for protecting the coil 3; the enameled wire 32 starts from the baffle 365 at one end of the skeleton 36 and is connected to the skeleton 35. The frame 36 is wound in an annular manner until the first groove 361 is filled, and then the enameled wire 32 passes through the third groove 363 and continues to be wound in an annular manner along the frame 36 until the second groove 362 is filled, thereby dividing the coil 3 into two parts. Compared with the whole solenoid coil 3 of the prior art, the number of contact surfaces of the coil 3 with the outside world is doubled, and the protrusions 364 on the frame 36 can be made of high heat dissipation material, which can effectively improve the heat dissipation capacity of the coil 3 and reduce the operating temperature of the electromagnetic pump; the contact piece 34 and the terminal 35 are fixed The frame 36 is provided on a baffle 365, with one end connected to the enameled wire 32 and the other end used to connect to an external power supply device to energize the coil 3. A limiting hole is provided inside the frame 36, and the magnetic yoke ring is embedded in the limiting hole. In a specific embodiment, the magnetic yoke ring is divided into an upper magnetic yoke ring 4 and a lower magnetic yoke ring 1. The upper magnetic yoke ring 4 and the lower magnetic yoke ring 1 achieve precise magnetic conduction to the two parts of the coil 3. The frame 36 is placed in the retaining frame 2, and the frame 36 is fixedly connected to the retaining frame 2. The precisely installed magnetic yoke ring cooperates with the retaining frame 2 to achieve the magnetic conduction function.

[0033] The pump body assembly includes a pump pipe 5, a moving assembly, a valve core 9, a sealing assembly, a liquid outlet pipe 14 and a connector 18. The moving assembly includes a main compression spring 6, a tension spring 7, an iron core 8 and a buffer compression spring 10. The sealing assembly includes a static sealing ring 13, a gasket 11, a dynamic sealing ring 12, a sealing rubber head 15, a tower spring 16 and a spring seat 17. The pump pipe 5 axially passes through the skeleton 36, one end of the pump pipe 5 is the liquid inlet end, and the other end is fixedly connected to the liquid outlet pipe 14. The main compression spring 6 is movably arranged between the liquid inlet end of the pump pipe 5 and the iron core 8. The iron core 8 is hollow, one end of the iron core 8 is movably arranged in the pump pipe 5, and the other end is movably arranged in the liquid outlet pipe 14. The tension spring 7 is movably arranged in the iron core 8, and one end of the tension spring 7 is fixedly connected to the iron core 8, and the other end passes through the hollow iron core 8 and is fixedly connected to the valve core 9. The buffer compression spring 10 is movably arranged between the iron core 8 and the liquid outlet pipe 14. The dynamic sealing ring 12 It is arranged in the liquid outlet pipe 14, and the iron core 8 in the liquid outlet pipe 14 passes through the dynamic sealing ring 12; the gasket 11 is arranged between the pump pipe 5 and the liquid outlet pipe 14, and the static sealing ring 13 is arranged between the gasket 11 and the liquid outlet pipe 14, which is conducive to achieving a fixed connection between the pump pipe 5 and the liquid outlet pipe 14 and preventing the liquid outlet pipe 14 from shaking; the spring seat 17 and the tower spring 16 are arranged in the liquid outlet pipe 14, the spring seat 17 is fixedly connected to the liquid outlet pipe 14, one end of the tower spring 16 is fixedly connected to the spring seat 17, and the other end is fixedly connected to the sealing rubber head 15, and the sealing rubber head 15 is movably arranged in the liquid outlet pipe 14; the connector 18 is provided with a through hole, and the diameter of the through hole is smaller than the maximum diameter of the liquid outlet pipe 14, a part of the liquid outlet pipe 14 passes through the connector 18, and a part is fixedly connected to the connector 18, and the other end of the connector 18 is fixedly connected to the retaining frame 2, so as to achieve a fixed connection between the coil assembly and the pump assembly;

[0034] When the electromagnetic pump is energized, the coil 3 will generate a magnetic field. The external magnetic field is guided by the retaining frame 2, and the internal magnetic field is precisely guided by the upper magnetic yoke ring 4 and the lower magnetic yoke ring 1. Under the action of the retaining frame 2, the upper magnetic yoke ring 4 and the lower magnetic yoke ring 1, the magnetic field forms a closed loop, and the magnetic field is transmitted to the iron core 8. The iron core 8 is affected by the magnetic force of the magnetic yoke ring and moves to the left to compress the main compression spring 6. The iron core 8 drives the tension spring 7 to move to the left, and the tension spring 7 drives the valve core 9 to move to the left. At the same time, the volume of the sealed chamber composed of the iron core 8, the dynamic sealing ring 12, the valve core 9, the liquid outlet pipe 14 and the sealing rubber head 15 will increase, and the pressure will decrease. At this time, the easy-to-open valve core 9 will be passively opened to balance the pressure of the sealed chamber. Since the pressure of the sealed chamber is lower than the pressure at the liquid inlet end of the pump tube 5, the liquid will enter the sealed chamber through the liquid inlet end of the pump tube 5 to achieve liquid suction;

[0035] When the electromagnetic pump is powered off, the iron core 8 is no longer affected by the magnetic force, and the main compression spring 6 will reset to push the iron core 8 to the right. At this time, the volume of the sealed cavity becomes smaller and the pressure becomes greater, so that the sealing rubber head 15 that is easy to open at this time is stretched open, and the liquid in the sealed cavity is discharged from the liquid outlet pipe 14 through the stretched sealing rubber head 15 to achieve drainage; the reciprocating operation will play a role in pumping liquid; in a specific embodiment, the coil 3 is provided with a diode 33, which has unidirectional conductivity. When alternating current is passed through the coil 3, the power is cut off by the diode 33 when the current direction changes; the diode 33 is only used to cut off the alternating current, and whether to use it can be decided according to the usage scenario;

[0036] The present invention proposes to divide the coil 3 into two parts, which can increase the heat dissipation area of ​​the coil 3 and effectively reduce the operating temperature of the electromagnetic pump; at the same time, it can reduce the number of turns of the coil 3 and effectively reduce the production cost of the electromagnetic pump; the present invention proposes that the skeleton 36 in the coil assembly is provided with a limiting hole for installing the magnetic yoke ring, which can accurately install the magnetic yoke to realize the magnetic conductivity function, and can effectively improve the stability of the operation of the electromagnetic pump.

[0037] Please refer to Figure 4 and Figure 5 The pump body assembly includes a pump tube 5, a moving assembly, a valve core 9, a sealing assembly, a liquid outlet pipe 14 and a connector 18; the pump tube 5 axially penetrates the skeleton 36, one end of the pump tube 5 is the liquid inlet end, and the other end is fixedly connected to the liquid outlet pipe 14; the moving assembly is movably arranged in the pump tube 5, and the sealing assembly is arranged on the liquid outlet pipe 14.

[0038] During specific implementation: the pump body assembly includes a pump tube 5, a moving assembly, a valve core 9, a sealing assembly, a liquid outlet pipe 14 and a connector 18; the pump tube 5 axially penetrates the skeleton 36, and the pump tube 5 is fixedly connected to the skeleton 36; one end of the pump tube 5 is the liquid inlet end, and the other end is fixedly connected to the liquid outlet pipe 14, the retaining frame 2 is provided with a through hole, the liquid inlet end of the pump tube 5 passes through the through hole of the retaining frame 2, and is located on the outside of the retaining frame 2 to realize the liquid suction function; the moving assembly is movably arranged in the pump tube 5, and the moving assembly is sequentially provided with a main compression spring 6, a tension spring 7, an iron core 8 and a buffer compression spring 10 in the pump tube 5; the sealing assembly is arranged on the liquid outlet pipe 14, and the sealing assembly includes a static sealing ring 13, a gasket 11, a dynamic sealing ring 12, a sealing rubber head 15, a tower spring 16 and a spring seat 17.

[0039] Please refer to Figure 2 and Figure 4 The iron core 8 is hollow, one end of the iron core 8 is movably set in the pump tube 5, and the other end is movably set in the liquid outlet pipe 14, the main compression spring 6 is movably set between the liquid inlet end of the pump tube 5 and the iron core 8, and the buffer compression spring 10 is movably set between the iron core 8 and the liquid outlet pipe 14.

[0040] In specific implementation: In a specific embodiment, the iron core 8 is hollow in the shape of a stepped shaft; one end of the iron core 8 is movably arranged in the pump tube 5, and the other end is movably arranged in the liquid outlet pipe 14; the main compression spring 6 is movably arranged between the liquid inlet end of the pump tube 5 and the iron core 8, and after power is cut off, the main compression spring 6 resets and pushes the iron core 8 to move to the right; the buffer compression spring 10 is movably arranged between the iron core 8 and the liquid outlet pipe 14 to prevent the iron core 8 from colliding with the tube body when moving to the right.

[0041] Please refer to Figure 2 and Figure 4 The valve core 9 is movably arranged in the iron core 8 in the liquid outlet pipe 14. One end of the tension spring 7 is fixedly connected to the iron core 8, and the other end passes through the iron core 8 and is fixedly connected to the valve core 9.

[0042] During specific implementation: the through hole at the outlet end of the iron core 8 in the liquid outlet pipe 14 is trapezoidal, and the valve core 9 is movably arranged in the through hole of the iron core 8 in the liquid outlet pipe 14. The valve is a one-way valve, and the valve core 9 can only move in the through hole of the iron core 8; one end of the tension spring 7 is fixedly connected to the iron core 8, and the other end passes through the iron core 8 and is fixedly connected to the valve core 9; when the iron core 8 moves to the left under the influence of the magnetic force of the magnetic yoke ring, the iron core 8 drives the tension spring 7 to move to the left, and the tension spring 7 will drive the valve core 9 to move to the left. At the same time, the volume of the sealed cavity composed of the iron core 8, dynamic sealing ring 12, valve core 9, liquid outlet pipe 14 and sealing rubber head 15 will become larger and the pressure will become smaller. At this time, the valve core 9 that is easy to open will be passively opened to balance the pressure of the sealed cavity. Since the pressure of the sealed cavity is less than the pressure at the liquid inlet end of the pump tube 5, the liquid will enter the sealed cavity through the liquid inlet end of the pump tube 5 to achieve liquid suction.

[0043] Please refer to Figure 2 and Figure 4 The dynamic sealing ring 12 is arranged in the liquid outlet pipe 14, the gasket 11 is arranged between the pump pipe 5 and the liquid outlet pipe 14, and the static sealing ring 13 is arranged between the gasket 11 and the liquid outlet pipe 14.

[0044] During specific implementation: the dynamic sealing ring 12 is arranged in the liquid outlet pipe 14, the iron core 8 in the liquid outlet pipe 14 passes through the dynamic sealing ring 12, and the gasket 11 is arranged between the pump pipe 5 and the liquid outlet pipe 14. The gasket 11 can prevent the dynamic sealing ring 12 from axially moving away from the liquid outlet pipe 14; the static sealing ring 13 is arranged between the gasket 11 and the liquid outlet pipe 14, which is conducive to achieving a fixed connection between the pump pipe 5 and the liquid outlet pipe 14 and avoiding shaking of the liquid outlet pipe 14.

[0045] Please refer to Figure 2 and Figure 4 The spring seat 17 and the tower spring 16 are arranged in the liquid outlet pipe 14, the spring seat 17 is fixedly connected to the liquid outlet pipe 14, one end of the tower spring 16 is fixedly connected to the spring seat 17, and the other end is fixedly connected to the sealing rubber head 15, and the sealing rubber head 15 is movably arranged in the liquid outlet pipe 14.

[0046] During specific implementation: the spring seat 17 and the tower spring 16 are arranged in the liquid outlet pipe 14, the spring seat 17 is fixedly connected to the liquid outlet pipe 14, one end of the tower spring 16 is fixedly connected to the spring seat 17, and the other end is fixedly connected to the sealing rubber head 15; the sealing rubber head 15 is movably arranged in the liquid outlet pipe 14; when the electromagnetic pump is powered off, the iron core 8 is no longer affected by the magnetic force, the main compression spring 6 will reset and push the iron core 8 to the right. At this time, the volume of the sealed cavity becomes smaller and the pressure becomes greater, allowing the sealing rubber head 15 that is easy to open at this time to be expanded, and the liquid in the sealed cavity is discharged from the liquid outlet pipe 14 through the expanded sealing rubber head 15 to achieve drainage.

[0047] Please refer to Figure 2 and Figure 4 The connector 18 is provided with a through hole, the diameter of the through hole is smaller than the maximum diameter of the liquid outlet pipe 14, one end of the connector 18 is fixedly connected to the retaining frame 2, and the other end is fixedly connected to the liquid outlet pipe 14, and the pump assembly and the coil assembly are fixedly connected through the connector 18.

[0048] In specific implementation: the connector 18 is in a trapezoidal barrel shape, and a through hole is provided in the center of the connector 18. The diameter of the through hole is smaller than the maximum diameter of the liquid outlet pipe 14. The part of the liquid outlet pipe 14 with a diameter smaller than the diameter of the through hole of the connector 18 passes through the connector 18. One end of the connector 18 is fixedly connected to the retaining frame 2 by a screw 19, and the other end is fixedly connected to the liquid outlet pipe 14, thereby realizing a fixed connection between the pump assembly and the coil assembly.

[0049] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An electromagnetic pump with a heat dissipation structure, comprising a coil assembly and a pump assembly, characterized in that: The coil assembly is fixedly connected to the pump assembly; the coil assembly includes a retaining frame, a skeleton, a magnetic yoke ring and several sections of coils, baffles are provided on both sides of the skeleton, a protrusion is provided in the middle of the skeleton, the protrusion is made of high heat dissipation material, the baffle and the protrusion form a first groove and a second groove, the protrusion is provided with a third groove, the coil is sleeved on the skeleton and arranged in the first groove and the second groove, the first groove and the coil in the second groove are connected through the third groove; a limiting hole is provided inside the skeleton, the magnetic yoke ring is embedded in the limiting hole; the skeleton is placed in the retaining frame, and the skeleton is fixedly connected to the retaining frame.

2. The electromagnetic pump with a heat dissipation structure according to claim 1, characterized in that: The pump assembly includes a pump tube, a movable assembly, a valve core, a sealing assembly and a liquid outlet pipe; the skeleton is hollow; the pump tube axially passes through the skeleton, one end of the pump tube is the liquid inlet end, and the other end is fixedly connected to the liquid outlet pipe; the movable assembly is movably arranged in the pump tube.

3. The electromagnetic pump with a heat dissipation structure according to claim 2, characterized in that: The sealing assembly includes a static sealing ring, a gasket, a dynamic sealing ring, a sealing rubber head, a tower spring and a spring seat. The static sealing ring and the gasket are arranged on the liquid outlet pipe, and the dynamic sealing ring, the sealing rubber head, the tower spring and the spring seat are arranged in the liquid outlet pipe.

4. The electromagnetic pump with a heat dissipation structure according to claim 3, characterized in that: The moving component includes an iron core and an elastic member, the elastic member includes a main compression spring and a buffer compression spring, the main compression spring is movably arranged between the liquid inlet end of the pump tube and the iron core, and the buffer compression spring is movably arranged between the iron core and the liquid outlet pipe.

5. The electromagnetic pump with a heat dissipation structure according to claim 4, characterized in that: One end of the iron core is movably arranged in the pump pipe, and the other end is movably arranged in the liquid outlet pipe.

6. The electromagnetic pump with a heat dissipation structure according to claim 5, characterized in that: The iron core is hollow, and the elastic member further includes a tension spring. The tension spring is arranged in the iron core, and one end of the tension spring is fixedly connected to the iron core, and the other end is fixedly connected to the valve core.

7. The electromagnetic pump with a heat dissipation structure according to claim 6, characterized in that: The valve core is movably arranged in the iron core in the liquid outlet pipe.

8. The electromagnetic pump with a heat dissipation structure according to claim 7, characterized in that: The dynamic sealing ring is movably arranged in the liquid outlet pipe, the dynamic sealing ring is sleeved on the iron core in the liquid outlet pipe, the gasket is arranged between the pump pipe and the liquid outlet pipe, and the static sealing ring is arranged between the gasket and the liquid outlet pipe.

9. The electromagnetic pump with a heat dissipation structure according to claim 8, characterized in that: The spring seat and the tower spring are arranged in the liquid outlet pipe, the spring seat is fixedly connected to the liquid outlet pipe, one end of the tower spring is fixedly connected to the spring seat, and the other end is fixedly connected to the sealing rubber head, and the sealing rubber head is movably arranged in the liquid outlet pipe.

10. The electromagnetic pump with a heat dissipation structure according to claim 9, characterized in that: The pump assembly also includes a connector, which is provided with a through hole. The diameter of the through hole is smaller than the maximum diameter of the liquid outlet pipe. One end of the connector is fixedly connected to the retaining frame, and the other end is fixedly connected to the liquid outlet pipe. The pump assembly and the coil assembly are fixedly connected through the connector.

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