High-reliability electromagnetic pump core

Abstract

A high-reliability electromagnetic pump core comprises an axial iron core, a plurality of radial iron cores and a plurality of coils, the coils are located among the radial iron cores, the high-reliability electromagnetic pump core is characterized in that each coil comprises a plurality of sub-coils which are coaxially nested, a plurality of fixing rods are arranged between every two adjacent sub-coils, and the fixing rods are fixed to the radial iron cores. According to the high-reliability electromagnetic pump core, ceramic tiles are replaced by the ceramic rods, and the machining difficulty and cost are reduced. The ceramic rods are fixed on the radial iron core, the sub-coils and the radial iron core are indirectly fixed, the ceramic rods can fix the positions of the sub-coils and isolate the adjacent sub-coils, meanwhile, ventilation gaps between the sub-coils are enlarged, the electromagnetic pump core is not prone to damage in the transportation and use process, and the reliability of the pump core is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic pumps, and in particular to a high-reliability electromagnetic pump core. Background Art

[0002] Patent CN117526599B discloses a high-temperature-resistant electromagnetic pump core. The coils within the core are separated by aluminum nitride ceramic tiles, forming a circumferential sleeve. However, these tiles are difficult to manufacture and expensive, and are prone to breakage during daily use, reducing the reliability of the electromagnetic pump. Furthermore, the lack of a fixed point between the tiles and the radial core makes it easy for vibrations during transportation to cause deformation and displacement of the coils, which can also damage the tiles. Summary of the Invention

[0003] The object of the present invention is to provide a high-reliability electromagnetic pump core to solve the defects of the existing electromagnetic pumps, such as high cost and low reliability.

[0004] In order to achieve the above-mentioned purpose of the invention, the technical solution of the present invention is as follows:

[0005] A high-reliability electromagnetic pump core comprises an axial core, several radial cores, and several coils. The coils are located between the radial cores and consist of several coaxially nested sub-coils. Several fixing rods are located between adjacent sub-coils and are fixed to the radial cores. The fixing rods are used to secure the sub-coils and separate them.

[0006] Furthermore, the radial core has a hole, and the fixing rod is inserted into the hole of the radial core. This hole can be a through hole or a blind hole, or a combination of a through hole and a blind hole. If it is a through hole, the middle of the fixing rod passes through the through hole, and the two ends of the fixing rod are located between adjacent sub-coils; if it is a blind hole, the ends of the fixing rod are inserted into the blind hole, and the middle of the fixing rod is located between adjacent sub-coils; if the hole on the radial core is a combination of a through hole and a blind hole, for example, there are three adjacent radial cores, the middle core is a through hole, and the two sides are blind holes, then the middle part of the fixing rod passes through the through hole of the middle core, and the two ends are fixed in the blind holes of the cores on both sides.

[0007] Furthermore, the fixing rod is made of an insulating material, preferably a ceramic rod that is easy to process and has low cost, such as an aluminum nitride ceramic rod or a zirconium oxide ceramic rod.

[0008] Furthermore, both sides of the fixing rod are directly attached to the adjacent sub-coils, fixing the inner coil on the outer side of the inner coil, and supporting and fixing the outer coil on the inner side of the outer coil.

[0009] Furthermore, the fixing rod is perpendicular to the radial iron core.

[0010] Furthermore, the cross section of the fixing rod is circular or polygonal, and the hole on the radial core is circular or polygonal corresponding to the cross section of the fixing rod.

[0011] Compared with the prior art, the beneficial technical effects of the present invention are:

[0012] The present invention provides a high-reliability electromagnetic pump core that replaces ceramic tiles with ceramic rods, reducing manufacturing difficulty and cost. The ceramic rods are fixed to the radial iron core, indirectly securing the sub-coils to the radial iron core. The ceramic rods not only secure the sub-coils in place but also isolate adjacent sub-coils, while also increasing the ventilation gaps between the sub-coils. This makes the electromagnetic pump core less susceptible to damage during transportation and use, significantly improving the pump core's reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the installation position of the fixing rod on the radial core in Example 1 of the present invention.

[0014] Figure 2 This is a schematic diagram of the overall external structure of a high-reliability electromagnetic pump core after assembly in Example 1 of the present invention. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0016] Example 1

[0017] like Figure 1 and 2 As shown, a high-reliability electromagnetic pump core includes an axial core (not shown), several radial cores 1, and several coils 2. The radial cores 1 are fixed to the axial core and are perpendicular to the axial core. The coils 2 are located between the radial cores (for specific installation, please refer to the solution disclosed in patent CN117526599B). The coils 2 include several coaxially nested sub-coils 201. Several fixing rods 3 are located between adjacent sub-coils 201. The fixing rods 3 are fixed to the radial cores 1 and are perpendicular to the radial cores 1.

[0018] The radial core 1 has a hole 101, and the fixing rod 3 is inserted into the hole 101 of the radial core 1. The hole 101 can be a through hole or a blind hole, or a combination of a through hole and a blind hole. If it is a through hole, the middle of the fixing rod passes through the through hole, and the two ends of the fixing rod are located between adjacent sub-coils; if it is a blind hole, the ends of the fixing rod are inserted into the blind hole, and the middle of the fixing rod is located between adjacent sub-coils; if the hole on the radial core is a combination of a through hole and a blind hole, for example, there are three adjacent radial cores, the middle core is a through hole, and the two sides are blind holes, then the middle part of the fixing rod passes through the through hole of the middle core, and the two ends are fixed in the blind holes of the cores on both sides. The form of the hole 101 is selected according to the size of the fixing rod actually used.

[0019] The fixing rod 3 is made of an insulating material, preferably a zirconia ceramic rod that is resistant to breakage. The fixing rod 3 is positioned between the sub-coils 201, with both sides of the fixing rod directly contacting the adjacent sub-coils. It is fixed to the outside of the inner coil to secure the inner coil, while also supporting and securing the outer coil on the inside of the outer coil, thereby securing the sub-coils and separating adjacent sub-coils.

[0020] The cross section of the fixing rod 3 is circular or polygonal, and the hole in the radial core 1 is circular or polygonal corresponding to the cross section of the fixing rod. Different shapes of fixing rods can be selected according to the shape of the sub-coil 201 and the relative position of the fixing rod 3 and the sub-coil 3.

Claims

1. A high-reliability electromagnetic pump core, comprising an axial iron core, a plurality of radial iron cores and a plurality of coils, wherein the coils are located between the radial iron cores, characterized in that: The coil comprises a plurality of coaxially nested sub-coils, a plurality of fixing rods are arranged between adjacent sub-coils, and the fixing rods are fixed to the radial iron core.

2. A high reliability electromagnetic pump core according to claim 1, characterized in that: The radial iron core is provided with a hole, and the fixing rod is inserted into the hole of the radial iron core.

3. A high reliability electromagnetic pump core according to claim 2, characterized in that: The hole on the radial iron core is a through hole, the middle portion of the fixing rod passes through the through hole, and both ends of the fixing rod are located between adjacent sub-coils.

4. A high reliability electromagnetic pump core according to claim 2, characterized in that: The hole on the radial iron core is a blind hole, the end of the fixing rod is inserted into the blind hole, and the middle of the fixing rod is located between adjacent sub-coils.

5. A high reliability electromagnetic pump core according to claim 4, characterized in that: The holes on the radial cores are blind holes, and the blind holes on adjacent radial cores are opposite to each other. Both ends of the fixing rod are inserted into the opposite blind holes on adjacent radial cores, and the middle of the fixing rod is located between adjacent sub-coils.

6. A high reliability electromagnetic pump core according to claim 1, characterized in that: The fixing rod is made of insulating material.

7. A high reliability electromagnetic pump core according to claim 6, characterized in that: The fixing rod is made of zirconium oxide.

8. The high-reliability electromagnetic pump core according to claim 1, characterized in that: Both sides of the fixing rod are respectively in contact with the adjacent sub-coils.

9. A high-reliability electromagnetic pump core according to any one of claims 1 to 8, characterized in that: The fixing rod is perpendicular to the radial iron core.

10. A high reliability electromagnetic pump core according to claim 9, characterized in that: The cross section of the fixing rod is circular or polygonal.

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