Electromagnet core for a particle device

Abstract

The application relates to an electromagnet core for a particle device, and relates to the technical field of electromagnets, which comprises a core body, the core body is wound into a cylindrical shape by a plurality of layers of soft magnetic composite materials, the material of the soft magnetic composite materials of the core body is iron-silicon-aluminum alloy, a cooling channel is arranged in the core body, and an insulating layer is coated between the layers of the plurality of layers of soft magnetic composite materials of the core body. The core body is wound by the plurality of layers of soft magnetic composite materials of the iron-silicon-aluminum alloy material, compared with a silicon steel lamination core, the soft magnetic performance of the iron-silicon-aluminum alloy is better, the problem of magnetic permeability reduction can be reduced, the multi-layer structure is matched with the insulating layers between the layers and the overall outer surface, the generation of eddy current can be effectively inhibited, the magnetic hysteresis loss and the eddy current loss under high frequency are reduced, meanwhile, compared with a powder metallurgy core, the winding structure is more uniform in density, the magnetic field distortion can be reduced, and good magnetic performance and structural stability are achieved.

Description

Technical Field

[0001] This application relates to the technical field of electromagnets, and in particular to an electromagnet core for particle devices. Background Technology

[0002] Electromagnets, as the core component of magnetic field generating devices, are widely used in industrial, medical, and scientific research fields. In recent years, with the increasing demands for magnetic field strength, uniformity, and response speed in fields such as particle physics and materials science, traditional electromagnet cores, due to problems such as high hysteresis loss and significant eddy current effects, are unable to meet the needs of high-frequency and high-power applications. Currently, silicon steel laminated cores and powder metallurgy cores are the mainstream solutions.

[0003] The insulation layer between the laminations of silicon steel laminated iron cores leads to a decrease in magnetic permeability and an increase in hysteresis loss at high frequencies. Powder metallurgy iron cores have low eddy current losses, but uneven density can easily lead to magnetic field distortion and have weak resistance to mechanical shock. It is difficult to balance mechanical strength and magnetic properties. Utility Model Content

[0004] The purpose of this application is to provide an electromagnet core for particle devices, which has the advantages of balancing mechanical strength and magnetic properties, avoiding the decrease in permeability caused by the insulation layer between the layers, high structural strength, relatively uniform density, and reduced magnetic field distortion. It solves the problems of decreased permeability caused by the insulation layer between the laminations of silicon steel laminated cores and increased hysteresis loss at high frequencies, as well as the problems of powder metallurgy cores with low eddy current loss but uneven density that easily leads to magnetic field distortion and weak resistance to mechanical shock, making it difficult to balance mechanical strength and magnetic properties.

[0005] The electromagnet core for particle equipment provided in this application adopts the following technical solution: An electromagnet core for particle equipment includes a core body, wherein the core body is a multilayer soft magnetic composite material wound into a cylindrical shape, the material of the soft magnetic composite material of the core body is an iron-silicon-aluminum alloy, a through cooling channel is opened inside the core body, an insulating layer is coated between the layers of the multilayer soft magnetic composite material of the core body, and an insulating layer is coated on the overall outer surface of the core body.

[0006] By adopting the above technical solution, the core body is made of multi-layer soft magnetic composite material of iron-silicon-aluminum alloy. Compared with silicon steel laminated core, iron-silicon-aluminum alloy has better soft magnetic properties, which can reduce the problem of decreased magnetic permeability. The multi-layer structure, together with the insulating layers between layers and on the overall outer surface, can effectively suppress the generation of eddy currents, reduce hysteresis loss and eddy current loss at high frequencies, and solve the problem of increased high-frequency loss of silicon steel laminated core. At the same time, the winding structure has a more uniform density than powder metallurgy core, which can reduce magnetic field distortion. The internal cooling channel can dissipate working heat in time, avoiding the impact of overheating on magnetic properties. It takes into account both good magnetic properties and structural stability, and solves the problems of magnetic field distortion and weak mechanical shock resistance caused by uneven density of powder metallurgy core.

[0007] Preferably, the cooling channels are opened in a continuous wave shape within the soft magnetic composite material of the iron core body.

[0008] By adopting the above technical solution, the cooling channel is opened in a continuous wave shape, which can increase the contact area between the cooling channel and the soft magnetic composite material inside the iron core body, extend the flow path of the cooling medium in the cooling channel, thereby improving the heat exchange efficiency between the cooling medium and the iron core body, enhancing the heat dissipation effect, and preventing the iron core body from being affected by overheating and affecting its magnetic properties.

[0009] Preferably, a water inlet pipe is provided at one end of the iron core body, and a water outlet pipe is provided at the other end of the iron core body. The water inlet pipe and the water outlet pipe are respectively located at the water inlet and water outlet of the cooling channel.

[0010] By adopting the above technical solution, the water inlet pipe and the water outlet pipe are connected to the water inlet and water outlet of the cooling channel, respectively, which facilitates the introduction and discharge of external cooling medium into the cooling channel, so that the cooling medium can circulate stably and orderly in the cooling channel, ensuring the continuity and reliability of the cooling system, and ensuring that the iron core body can continuously dissipate heat during operation.

[0011] Preferably, a reinforcing sleeve is provided on the outside of the iron core body, and two end caps are provided at both ends of the iron core body, with the side edges of the end caps fixedly connected to the ends of the reinforcing sleeve.

[0012] By adopting the above technical solution, the reinforcing sleeve and the two end caps form a reinforcing structure that surrounds the iron core body, which can effectively support and protect the iron core body, enhance the overall mechanical strength and resistance to mechanical impact of the iron core body, and at the same time prevent the iron core body from deforming during long-term operation or when subjected to external forces, thus ensuring its structural stability.

[0013] Preferably, the insulating layer is made of epoxy resin insulating adhesive.

[0014] By adopting the above technical solution, the insulation layer uses epoxy resin insulating adhesive. Epoxy resin insulating adhesive has excellent insulation properties, which can effectively block the current path between layers and on the outer surface, further suppressing the generation of eddy currents. At the same time, it has good high temperature resistance and aging resistance, and can adapt to the temperature changes when the electromagnet is working, ensuring that the insulation layer maintains a stable insulation effect during long-term use and improving the working reliability of the iron core body.

[0015] Preferably, a mounting boss is provided on one side of the end cap, and a through mounting hole is provided on the mounting boss.

[0016] By adopting the above technical solution, the matching of the mounting boss and the mounting hole provides a convenient installation and fixing structure for the iron core body, which facilitates the quick and stable assembly of the iron core body to the corresponding position of the particle equipment, thereby improving installation efficiency and assembly stability.

[0017] Preferably, the outer surfaces of the reinforcing sleeve and the end cap are coated with a protective coating, the material of which is a titanium nitride film.

[0018] By adopting the above technical solution, the protective coating of titanium nitride thin film material has high hardness and wear resistance, which can effectively protect the reinforcement sleeve and end cap, reduce the wear and corrosion of the external environment, extend the service life of the reinforcement sleeve and end cap, and ensure the long-term stability of its structural strength.

[0019] Preferably, one end of the soft magnetic composite material of the iron core body is provided with a void-filling column, and the other end of the soft magnetic composite material of the iron core body is provided with a bonding arc surface.

[0020] By adopting the above technical solution, the setting of the void filling column can fill the void in the middle of the iron core body made of multi-layer soft magnetic composite material, avoid magnetic field distortion caused by the void, improve magnetic field uniformity, and the setting of the arc surface can make the outer surface of the iron core body made of multi-layer soft magnetic composite material smoother, and avoid the end face of the soft magnetic composite material from affecting the smoothness of the outer surface of the middle part of the iron core body.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This type of electromagnet core for particle equipment is made of a multi-layered soft magnetic composite material of iron-silicon-aluminum alloy. Compared with silicon steel laminated cores, iron-silicon-aluminum alloy has better soft magnetic properties, which can reduce the problem of decreased magnetic permeability. The multi-layered structure, together with the insulating layers between the layers and the overall outer surface, can effectively suppress the generation of eddy currents and reduce hysteresis loss and eddy current loss at high frequencies. At the same time, the wound structure has a more uniform density than powder metallurgy cores, which can reduce magnetic field distortion and balance good magnetic properties and structural stability.

[0022] This type of electromagnet core for particle equipment uses epoxy resin insulating adhesive in its insulation layer. While achieving interlayer insulation to suppress eddy currents, its excellent adhesion enhances the bonding force between the multi-layer soft magnetic composite materials, improving the overall structural strength of the core body. The gap-filling pillars and the mating arc surface further optimize the structural integrity of the core body, reducing magnetic field distortion caused by gaps and surface unevenness resulting from the winding of the multi-layer soft magnetic composite materials, and improving magnetic field uniformity. The synergistic effect of each structure ensures magnetic performance through the iron-silicon-aluminum alloy material and winding process, while strengthening mechanical strength through reinforcing sleeves and end caps. At the same time, the cooling medium can be circulated into the cooling channel through the water inlet and outlet pipes, which can fully cool the core body and prevent the core body from being affected by overheating. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of this application; Figure 2 This is a schematic diagram of the exploded structure of this application; Figure 3 This is a schematic diagram of the unfolded structure of the soft magnetic composite material of this application; Figure 4 This is a schematic diagram of the unfolded cross-sectional structure of the soft magnetic composite material of this application; Figure 5 This is a schematic diagram of the insulating layer coated on the outer surface of the iron core body in this application; Figure 6 This is a schematic diagram of the interlayer coating insulation layer of the multilayer soft magnetic composite material of this application; Figure 7 This is a schematic diagram of the protective coating applied to the outer surface of the reinforcing sleeve and end cap of this application.

[0024] In the picture: 1. Iron core body; 101. Soft magnetic composite material; 2. Cooling channel; 3. Water inlet pipe; 4. Water outlet pipe; 5. Reinforcing sleeve; 6. End cap; 7. Mounting boss; 8. Mounting hole; 9. Insulation layer; 10. Protective coating; 11. Void filling column; 12. Joint arc surface. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail below.

[0026] Example 1: An electromagnet core for a particle device, please refer to... Figure 4 , Figure 5 and Figure 6The core body 1 comprises a multi-layered soft magnetic composite material 101 wound into a cylindrical shape. The soft magnetic composite material 101 of the core body 1 is made of iron-silicon-aluminum alloy. A through-flow cooling channel 2 is provided inside the core body 1. An insulating layer 9 is coated between each layer of the multi-layered soft magnetic composite material 101 of the core body 1. The entire outer surface of the core body 1 is coated with an insulating layer 9. The core body 1 is made of multi-layered soft magnetic composite material 101 of iron-silicon-aluminum alloy, which, compared to silicon steel laminated cores, has superior soft magnetic properties and can reduce... To address the issue of decreased magnetic permeability, the multi-layer structure, combined with the insulating layers 9 between layers and on the overall outer surface, effectively suppresses eddy current generation, reduces hysteresis and eddy current losses at high frequencies, and solves the problem of increased high-frequency losses in silicon steel laminated cores. At the same time, the wound structure has a more uniform density compared to powder metallurgy cores, which can reduce magnetic field distortion. Furthermore, the internal cooling channels 2 can dissipate working heat in a timely manner, preventing overheating from affecting magnetic properties. This balances good magnetic properties with structural stability, solving the problems of magnetic field distortion and weak mechanical shock resistance caused by uneven density in powder metallurgy cores.

[0027] Please see Figure 4 The cooling channel 2 is continuously wavy inside the soft magnetic composite material 101 of the iron core body 1. The continuous wavy opening of the cooling channel 2 can increase the contact area between the cooling channel 2 and the soft magnetic composite material 101 inside the iron core body 1, and extend the flow path of the cooling medium in the cooling channel 2, thereby improving the heat exchange efficiency between the cooling medium and the iron core body 1, enhancing the heat dissipation effect, and preventing the iron core body 1 from being affected by overheating and affecting its magnetic properties.

[0028] Please see Figure 1 , Figure 2 and Figure 4 One end of the iron core body 1 is provided with a water inlet pipe 3, and the other end of the iron core body 1 is provided with a water outlet pipe 4. The water inlet pipe 3 and the water outlet pipe 4 are respectively located at the water inlet and water outlet of the cooling channel 2. The water inlet pipe 3 and the water outlet pipe 4 are respectively connected to the water inlet and water outlet of the cooling channel 2, so as to facilitate the introduction of external cooling medium into the cooling channel 2 and the discharge, so that the cooling medium can circulate stably and orderly in the cooling channel 2, ensuring the continuity and reliability of the cooling system, and ensuring that the iron core body 1 can continuously dissipate heat during operation.

[0029] Please see Figure 5 and Figure 6 The insulating layer 9 is made of epoxy resin insulating adhesive. Epoxy resin insulating adhesive has excellent insulation properties, which can effectively block the current path between layers and on the outer surface, further suppressing the generation of eddy currents. At the same time, it has good high temperature resistance and aging resistance, and can adapt to the temperature changes when the electromagnet is working, ensuring that the insulating layer 9 maintains a stable insulation effect during long-term use and improving the working reliability of the iron core body 1.

[0030] Please see Figure 3 One end of the soft magnetic composite material 101 of the iron core body 1 is provided with a void filling column 11, and the other end of the soft magnetic composite material 101 of the iron core body 1 is provided with a connecting arc surface 12. The void filling column 11 can fill the void in the middle of the iron core body 1 formed by winding the multi-layer soft magnetic composite material 101, so as to avoid magnetic field distortion caused by voids and improve magnetic field uniformity. The connecting arc surface 12 can make the outer surface of the iron core body 1 formed by winding the multi-layer soft magnetic composite material 101 smoother, so as to avoid the end face of the soft magnetic composite material 101 from affecting the smoothness of the middle outer surface of the iron core body 1.

[0031] Example 2: An electromagnet core for a particle device, please refer to [link / reference]. Figure 1 and Figure 2 The iron core body 1 is provided with a reinforcing sleeve 5 on its outside. Two end caps 6 are provided at both ends of the iron core body 1. The side edges of the end caps 6 are fixedly connected to the ends of the reinforcing sleeve 5. The reinforcing sleeve 5 and the two end caps 6 form a reinforcing structure that surrounds the iron core body 1, which can effectively support and protect the iron core body 1, enhance the overall mechanical strength and mechanical impact resistance of the iron core body 1, and prevent the iron core body 1 from deforming during long-term operation or when subjected to external forces, thus ensuring its structural stability.

[0032] Please see Figure 1 and Figure 2 The end cap 6 has a mounting boss 7 on one side, and a through mounting hole 8 is provided on the mounting boss 7. The cooperation between the mounting boss 7 and the mounting hole 8 provides a convenient installation and fixing structure for the iron core body 1, which makes it easy to quickly and stably assemble the iron core body 1 into the corresponding position of the particle equipment, thereby improving the installation efficiency and assembly stability.

[0033] Please see Figure 7 The outer surfaces of the reinforcing sleeve 5 and the end cap 6 are coated with a protective coating 10. The protective coating 10 is made of titanium nitride film. The protective coating 10 made of titanium nitride film has high hardness and wear resistance, which can effectively protect the reinforcing sleeve 5 and the end cap 6, reduce the wear and corrosion of the external environment, extend the service life of the reinforcing sleeve 5 and the end cap 6, and ensure the long-term stability of their structural strength.

[0034] The implementation principle of this application embodiment is as follows: a multilayer soft magnetic composite material 101 of iron-silicon-aluminum alloy is wound to form the iron core body 1. The excellent soft magnetic properties of the material itself are used to improve the magnetic permeability. At the same time, the multilayer structure, together with the epoxy resin insulating layer 9 between the layers and on the outer surface, effectively blocks the eddy current path, reduces hysteresis loss and eddy current loss at high frequencies, and overcomes the loss and magnetic field distortion problems of silicon steel laminated iron cores and powder metallurgy iron cores. The continuous wave-shaped cooling channel 2 inside the iron core body 1 increases the heat dissipation area, and the cooling system formed by the water inlet pipe 3 and the water outlet pipe 4 is further enhanced. The medium circulation path can dissipate the heat generated during operation in a timely manner, avoiding overheating that could affect magnetic properties. The external reinforcing sleeve 5 and the end caps 6 at both ends form a reinforcing structure. Combined with the titanium nitride thin film protective coating 10 on the outer surface, it enhances the overall mechanical strength and impact resistance. The gap filling column 11 at the end can fill the gap in the middle of the wound iron core body 1. Combined with the arc surface 12, it can make the middle outer surface of the iron core body 1 wound by the multilayer soft magnetic composite material 101 smoother. The iron core can be easily installed on the particle equipment through the mounting boss 7 and mounting hole 8.

[0035] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electromagnet core for a particle device, comprising a core body (1), characterized in that: The core body (1) is a cylindrical structure made of multilayer soft magnetic composite material (101). The soft magnetic composite material (101) of the core body (1) is made of iron-silicon-aluminum alloy. A through cooling channel (2) is provided inside the core body (1). An insulating layer (9) is coated between the layers of the multilayer soft magnetic composite material (101) of the core body (1). An insulating layer (9) is coated on the overall outer surface of the core body (1).

2. The electromagnet core for a particle device according to claim 1, characterized in that: The cooling channel (2) is opened in a continuous wave shape within the soft magnetic composite material (101) of the iron core body (1).

3. The electromagnet core for a particle device according to claim 1, characterized in that: One end of the iron core body (1) is provided with a water inlet pipe (3), and the other end of the iron core body (1) is provided with a water outlet pipe (4). The water inlet pipe (3) and the water outlet pipe (4) are respectively located at the water inlet and water outlet of the cooling channel (2).

4. The electromagnet core for a particle device according to claim 1, characterized in that: The iron core body (1) is provided with a reinforcing sleeve (5) on its outside. Two end caps (6) are provided at both ends of the iron core body (1). The side edges of the end caps (6) are fixedly connected to the ends of the reinforcing sleeve (5).

5. The electromagnet core for a particle device according to claim 1, characterized in that: The insulating layer (9) is made of epoxy resin insulating adhesive.

6. The electromagnet core for a particle device according to claim 4, characterized in that: The end cap (6) is provided with a mounting boss (7) on one side, and a through mounting hole (8) is provided on the mounting boss (7).

7. The electromagnet core for a particle device according to claim 4, characterized in that: The outer surfaces of the reinforcing sleeve (5) and the end cap (6) are coated with a protective coating (10), which is made of titanium nitride film.

8. The electromagnet core for a particle device according to claim 1, characterized in that: One end of the soft magnetic composite material (101) of the iron core body (1) is provided with a void filling column (11), and the other end of the soft magnetic composite material (101) of the iron core body (1) is provided with a bonding arc surface (12).

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