A magnetic flux pump cross magnetic circuit and magnetic circuit device

Abstract

The application belongs to the technical field of magnetic flux pumps and relates to a magnetic flux pump cross magnetic circuit and a magnetic circuit device. The magnetic flux pump cross magnetic circuit comprises a main magnetic circuit component and an auxiliary magnetic circuit component; the main magnetic circuit component comprises a main coil, a main coil core, a first main magnetic guide beam and a second main magnetic guide beam; the auxiliary magnetic circuit component comprises a first auxiliary magnetic guide beam and a second auxiliary magnetic guide beam; the main coil is wound on the main coil core; the first auxiliary magnetic guide beam and the second auxiliary magnetic guide beam are both provided with an auxiliary coil; and the first main magnetic guide beam and the second main magnetic guide beam both comprise an axial branch, a first side branch and a second side branch. The application can enhance the magnetic field strength around the main coil and the core, improve the reliability and anti-interference ability of the equipment, improve the energy conversion efficiency of the magnetic flux pump, and make the overall structure more stable through the support effect of the main magnetic guide beam and the auxiliary magnetic guide beam.

Description

Technical Field

[0001] The present invention belongs to the technical field of magnetic flux pumps, and in particular relates to a cross magnetic circuit and a magnetic circuit device of a magnetic flux pump. Background Art

[0002] In the research and application of magnetic flux pumps, magnetic circuit design is an extremely critical link. Common magnetic circuit designs for magnetic flux pumps use a more traditional layout, where the main magnetic circuit and the remaining magnetic circuit channels are arranged in the same plane. In this case, the axial length is easily too long, resulting in an uneven magnetic circuit. The uneven magnetic circuit will cause magnetic field fluctuations during the operation of the magnetic flux pump. This fluctuation will further cause current instability, resulting in deviations in the output characteristics of the magnetic flux pump. When the magnetic flux pump is used in precision instruments or control systems with extremely high stability requirements, this instability in the magnetic field and current may cause the operation of the entire system to malfunction and fail to meet actual work needs. Due to the uneven distribution of the magnetic field, the magnetic flux in some areas cannot effectively participate in the energy conversion process, resulting in energy waste. This not only reduces the energy conversion efficiency of the magnetic flux pump, but may also lead to insufficient output power, greatly limiting the application of the magnetic flux pump. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a cross magnetic circuit and a magnetic circuit device for a magnetic flux pump.

[0004] In a first aspect, the present invention provides a cross-magnetic circuit of a magnetic flux pump, comprising a main magnetic circuit assembly and an auxiliary magnetic circuit assembly; the main magnetic circuit assembly comprises a main coil, a main coil core, a first main magnetic beam, and a second main magnetic beam; the auxiliary magnetic circuit assembly comprises a first auxiliary magnetic beam and a second auxiliary magnetic beam;

[0005] The main coil is wound on the main coil core; the first auxiliary magnetic conductive beam and the second auxiliary magnetic conductive beam are both sleeved with auxiliary coils;

[0006] The first main magnetic beam and the second main magnetic beam each include an axial branch along the axial direction of the main coil core, a first side branch arranged on one side of the axial branch, and a second side branch arranged on the other side of the axial branch;

[0007] The first main magnetic beam, the second main magnetic beam, the first auxiliary magnetic beam and the second auxiliary magnetic beam are arranged around the outside of the main coil core and the main coil; one end of the first auxiliary magnetic beam is connected to the first side branch of the first main magnetic beam, and the other end is connected to the first side branch of the second main magnetic beam; one end of the second auxiliary magnetic beam is connected to the second side branch of the first main magnetic beam, and the other end is connected to the second side branch of the second main magnetic beam.

[0008] In a second aspect, the present invention provides a magnetic circuit device based on the cross-magnetic circuit of a magnetic flux pump, comprising:

[0009] A plurality of said magnetic flux pumps cross magnetic circuits;

[0010] The main coil core of the previous magnetic flux pump cross magnetic circuit is connected to the main coil core end of the next magnetic flux pump cross magnetic circuit, and the axial branch of the previous magnetic flux pump cross magnetic circuit is connected to the axial branch end of the next magnetic flux pump cross magnetic circuit.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, the first side branch of the first main magnetic beam and the second side branch of the first main magnetic beam are not on the same straight line, and the first side branch of the second main magnetic beam and the second side branch of the second main magnetic beam are not on the same straight line.

[0013] Furthermore, the lengths of the axial branches of the first main magnetic beam and the axial branches of the second main magnetic beam are greater than or equal to the length of the main coil core.

[0014] Furthermore, the first main magnetic beam and the second main magnetic beam have the same structure and are arranged in parallel; the first auxiliary magnetic beam and the second auxiliary magnetic beam have the same structure and are arranged in parallel.

[0015] Furthermore, the main coil and the auxiliary coil are both copper coils or superconducting coils; the first main magnetic beam, the second main magnetic beam, the first auxiliary magnetic beam and the second auxiliary magnetic beam are silicon steel sheets.

[0016] Furthermore, the first main magnetic beam, the second main magnetic beam, the first auxiliary magnetic beam and the second auxiliary magnetic beam are rectangular, cylindrical or polygonal structures.

[0017] Furthermore, the auxiliary coil is a circular tube structure or a rectangular tube structure.

[0018] Furthermore, the angle formed by the first main magnetic beam and the first auxiliary magnetic beam, the angle formed by the first main magnetic beam and the second auxiliary magnetic beam, the angle formed by the second main magnetic beam and the first auxiliary magnetic beam, and the angle formed by the second main magnetic beam and the second auxiliary magnetic beam are acute angles, right angles, or obtuse angles.

[0019] Furthermore, the auxiliary coil sleeved on the first auxiliary magnetic conductive beam is fixedly arranged on the first auxiliary magnetic conductive beam; the auxiliary coil sleeved on the second auxiliary magnetic conductive beam is fixedly arranged on the second auxiliary magnetic conductive beam.

[0020] The beneficial effects of the present invention are as follows: the main magnetic circuit and the auxiliary magnetic circuit of the magnetic flux pump are cross-coupled to form the magnetic field required by the magnetic flux pump, which can enhance the magnetic field strength around the main coil and the iron core; the surrounding magnetic conductive beams form a relatively closed magnetic shielding space, which can block the interference of the external magnetic field to a certain extent, making the working environment of the main coil and the iron core more stable, ensuring that the performance of the equipment is not affected by the external magnetic field, and improving the reliability and anti-interference ability of the equipment; by setting up a closed magnetic conductive beam, a low magnetic resistance path is provided for the magnetic flux, thereby improving the energy conversion efficiency of the magnetic flux pump; the supporting effect generated by the setting of the main magnetic beam and the auxiliary magnetic conductive beam makes the overall structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a cross-magnetic circuit of a magnetic flux pump provided in Example 1 of the present invention;

[0022] Figure 2 A schematic structural diagram of an optional implementation scheme of a cross-magnetic circuit of a magnetic flux pump provided in Example 1 of the present invention;

[0023] Figure 3 A schematic structural diagram of a magnetic circuit device based on a cross-magnetic circuit of a magnetic flux pump provided in Example 2 of the present invention;

[0024] Figure 4 This is a structural schematic diagram of an optional implementation of a magnetic circuit device based on the cross-magnetic circuit of a magnetic flux pump provided in Example 2 of the present invention.

[0025] Icon: 1-main coil; 2-main coil core; 3-first main magnetic beam; 4-second main magnetic beam; 5-first auxiliary magnetic beam; 6-second auxiliary magnetic beam; 7-auxiliary coil. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Example 1

[0028] As an example, Figure 1 As shown, in order to solve the above technical problems, this embodiment provides a magnetic flux pump cross magnetic circuit, including a main magnetic circuit component and an auxiliary magnetic circuit component; the main magnetic circuit component includes a main coil 1, a main coil core 2, a first main magnetic beam 3 and a second main magnetic beam 4; the auxiliary magnetic circuit component includes a first auxiliary magnetic beam 5 and a second auxiliary magnetic beam 6;

[0029] The main coil 1 is wound on the main coil core 2; the first auxiliary magnetic conductive beam 5 and the second auxiliary magnetic conductive beam 6 are both sleeved with auxiliary coils 7;

[0030] The first main magnetic beam 3 and the second main magnetic beam 4 each include an axial branch along the axial direction of the main coil core 2, a first side branch arranged on one side of the axial branch, and a second side branch arranged on the other side of the axial branch;

[0031] The first main magnetic beam 3, the second main magnetic beam 4, the first auxiliary magnetic beam 5 and the second auxiliary magnetic beam 6 are arranged around the outside of the main coil core 2 and the main coil 1; one end of the first auxiliary magnetic beam 5 is connected to the first side branch of the first main magnetic beam 3, and the other end is connected to the first side branch of the second main magnetic beam 4; one end of the second auxiliary magnetic beam 6 is connected to the second side branch of the first main magnetic beam 3, and the other end is connected to the second side branch of the second main magnetic beam 4.

[0032] The main magnetic circuit of the flux pump is generated by the main coil 1, forming a closed magnetic circuit through the main coil core 2 and two sets of main magnetic beams. The auxiliary magnetic circuit of the flux pump is generated by the auxiliary coil 7, forming a closed magnetic circuit through two sets of auxiliary magnetic beams.

[0033] The main magnetic circuit and the auxiliary magnetic circuit of the flux pump are cross-coupled to form the magnetic field required by the flux pump.

[0034] The magnetic beams provide a low-resistance path for magnetic flux, facilitating its passage, reducing magnetic energy loss and improving the energy conversion efficiency of the flux pump. The beams, located around the main coil core and the outer sides of the main coil, converge and guide the magnetic field, further concentrating it and enhancing the magnetic field strength around the main coil and core. These beams create a relatively enclosed magnetic shield, effectively blocking interference from external magnetic fields. This creates a more stable operating environment for the main coil and core, ensuring that the device's performance is unaffected by external magnetic fields and improving its reliability and anti-interference capabilities.

[0035] The first main magnetic beam 3 and the second main magnetic beam 4 have axial branches along the axial direction of the main coil core 2, which can increase the structural width of the magnetic circuit and thus reduce the length of the magnetic circuit, obtain a larger length space, and thus help to increase the length of the main coil core 2.

[0036] The supporting effect produced by the auxiliary magnetic beam makes the overall structure more stable.

[0037] As an optional implementation, as shown in the attached Figure 2 As shown, the first side branch of the first main magnetic beam 3 and the second side branch of the first main magnetic beam 3 are not on the same straight line, and the first side branch of the second main magnetic beam 4 and the second side branch of the second main magnetic beam 4 are not on the same straight line.

[0038] The first side branch of the first main magnetic beam 3 and the second side branch of the first main magnetic beam 3 are arranged on both sides of the axial branch, and the two are not on the same straight line, so that after the first main magnetic beam 3, the second main magnetic beam 4, the first auxiliary magnetic beam 5 and the second auxiliary magnetic beam 6 are connected around the main coil 1 and the main coil core 2, the first plane formed by the first main magnetic beam 3, the second main magnetic beam 4 and the second auxiliary magnetic beam 6 is not in the same plane as the second plane formed by the first main magnetic beam 3, the second main magnetic beam 4 and the first auxiliary magnetic beam 5, so that the magnetic field is more uniform, which is beneficial to improving the performance of the flux pump.

[0039] As an optional implementation, the lengths of the axial branches of the first main magnetic beam 3 and the axial branches of the second main magnetic beam 4 are greater than or equal to the length of the main coil core 2 .

[0040] The cross magnetic circuits of the magnetic flux pump can be connected through axial branches. The length of the axial branches is greater than or equal to the length of the main coil core 2, which is conducive to the fixation and stability of the cross magnetic circuits of the magnetic flux pump.

[0041] As an optional embodiment, the first main magnetic beam 3 and the second main magnetic beam 4 have the same structure and are arranged in parallel; the first auxiliary magnetic beam 5 and the second auxiliary magnetic beam 6 have the same structure and are arranged in parallel.

[0042] The first main magnetic beam 3 and the second main magnetic beam 4 are symmetrically positioned on either side of the main coil core 2 and the main coil 1. The first auxiliary magnetic beam 5 and the second auxiliary magnetic beam 6 are symmetrically positioned on either side of the main coil core 2 and the main coil 1. The symmetrical arrangement of the main and auxiliary magnetic beams ensures a more uniform magnetic flux distribution around the main coil core and the main coil. This symmetrical structure provides greater stability and balance for the entire device, making the main coil core and the main coil less susceptible to displacement or deformation during operation.

[0043] As an optional embodiment, the main coil 1 and the auxiliary coil 7 are both copper coils or superconducting coils; the first main magnetic beam 3, the second main magnetic beam 4, the first auxiliary magnetic beam 5 and the second auxiliary magnetic beam 6 are silicon steel sheets.

[0044] As an optional implementation, the first main magnetic beam 3 , the second main magnetic beam 4 , the first auxiliary magnetic beam 5 and the second auxiliary magnetic beam 6 are rectangular, cylindrical or polygonal structures.

[0045] As an optional implementation, the auxiliary coil 7 is a circular tube structure or a rectangular tube structure.

[0046] When current passes through the circular tube auxiliary coil 7, the resulting magnetic field is more evenly distributed circumferentially, facilitating more stable magnetic conduction and a more stable magnetic field environment within the flux pump, thereby improving the overall performance and efficiency of the flux pump. A rectangular tube auxiliary coil 7 can generate a magnetic field in a specific direction perpendicular to the coil plane.

[0047] As an optional embodiment, the angle formed by the first main magnetic beam 3 and the first auxiliary magnetic beam 5, the angle formed by the first main magnetic beam 3 and the second auxiliary magnetic beam 6, the angle formed by the second main magnetic beam 4 and the first auxiliary magnetic beam 5, and the angle formed by the second main magnetic beam 4 and the second auxiliary magnetic beam 6 are acute angles, right angles, or obtuse angles.

[0048] The angles between adjacent magnetic beams can be acute, right, or obtuse. Sharp-angled beams create a more concentrated magnetic field, resulting in stronger localized magnetic field strength. Right-angled beams create a relatively uniform magnetic field distribution. Obtuse-angled beams create a wider space for the magnetic field to spread between adjacent beams, resulting in a more dispersed distribution of magnetic field lines.

[0049] As an optional embodiment, the auxiliary coil 7 sleeved on the first auxiliary magnetic conductive beam 5 is fixedly set on the first auxiliary magnetic conductive beam 5; the auxiliary coil 7 sleeved on the second auxiliary magnetic conductive beam 6 is fixedly set on the second auxiliary magnetic conductive beam 6.

[0050] In actual application, the auxiliary coil 7 is fixed to the first auxiliary magnetic conductive beam 5 and the second auxiliary magnetic conductive beam 6 respectively by screws or other fixing methods, so that the magnetic field generated by the auxiliary coil 7 is stabilized in the required area, thereby improving the stability of the structure and reducing the error caused by magnetic field fluctuations.

[0051] Example 2

[0052] Based on the same principle as the method shown in Example 1 of the present invention, as shown in the attached Figure 3 As shown, an embodiment of the present invention further provides a magnetic circuit device based on the cross magnetic circuit of the magnetic flux pump, including:

[0053] Several flux pumps cross magnetic circuits;

[0054] The main coil core 2 of the previous magnetic flux pump cross magnetic circuit is connected to the main coil core 2 end of the next magnetic flux pump cross magnetic circuit, and the axial branch of the previous magnetic flux pump cross magnetic circuit is connected to the axial branch end of the next magnetic flux pump cross magnetic circuit.

[0055] The cross-magnetic circuits of the flux pumps are connected by axial branches, creating the effect of multiple flux pumps connected in series. This achieves a higher total magnetic flux or voltage, enhancing system stability. A single flux pump may experience performance fluctuations or even failure due to various reasons (such as power supply fluctuations and component aging). When multiple flux pumps are connected in series, even if one fails, the others can continue to operate, maintaining partial system functionality. This reduces the risk of complete system failure due to a single component failure, thereby improving system stability and reliability. Connecting multiple flux pumps in series allows for more precise adjustment of the magnetic field by precisely controlling the output of each individual flux pump. Each flux pump can generate magnetic flux of varying magnitude and direction as needed. By combining these fluxes, complex magnetic field distributions can be achieved to meet the high-precision requirements of specific applications.

[0056] As an optional implementation, as shown in the attached Figure 4 As shown, the first side branch of the first main magnetic beam 3 and the second side branch of the first main magnetic beam 3 are not on the same straight line, and the first side branch of the second main magnetic beam 4 and the second side branch of the second main magnetic beam 4 are not on the same straight line.

[0057] As an optional implementation, the lengths of the axial branches of the first main magnetic beam 3 and the axial branches of the second main magnetic beam 4 are greater than or equal to the length of the main coil core 2 .

[0058] As an optional embodiment, the first main magnetic beam 3 and the second main magnetic beam 4 have the same structure and are arranged in parallel; the first auxiliary magnetic beam 5 and the second auxiliary magnetic beam 6 have the same structure and are arranged in parallel.

[0059] As an optional embodiment, the main coil 1 and the auxiliary coil 7 are both copper coils or superconducting coils; the first main magnetic beam 3, the second main magnetic beam 4, the first auxiliary magnetic beam 5 and the second auxiliary magnetic beam 6 are silicon steel sheets.

[0060] As an optional implementation, the first main magnetic beam 3 , the second main magnetic beam 4 , the first auxiliary magnetic beam 5 and the second auxiliary magnetic beam 6 are rectangular, cylindrical or polygonal structures.

[0061] As an optional implementation, the auxiliary coil 7 is a circular tube structure or a rectangular tube structure.

[0062] As an optional embodiment, the angle formed by the first main magnetic beam 3 and the first auxiliary magnetic beam 5, the angle formed by the first main magnetic beam 3 and the second auxiliary magnetic beam 6, the angle formed by the second main magnetic beam 4 and the first auxiliary magnetic beam 5, and the angle formed by the second main magnetic beam 4 and the second auxiliary magnetic beam 6 are acute angles, right angles, or obtuse angles.

[0063] As an optional embodiment, the auxiliary coil 7 sleeved on the first auxiliary magnetic conductive beam 5 is fixedly set on the first auxiliary magnetic conductive beam 5; the auxiliary coil 7 sleeved on the second auxiliary magnetic conductive beam 6 is fixedly set on the second auxiliary magnetic conductive beam 6.

[0064] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A magnetic flux pump cross magnetic circuit, characterized in that: It comprises a main magnetic circuit component and an auxiliary magnetic circuit component; the main magnetic circuit component comprises a main coil (1), a main coil iron core (2), a first main magnetic beam (3) and a second main magnetic beam (4); the auxiliary magnetic circuit component comprises a first auxiliary magnetic beam (5) and a second auxiliary magnetic beam (6); The main coil (1) is wound on the main coil core (2); the first auxiliary magnetic conductive beam (5) and the second auxiliary magnetic conductive beam (6) are both sleeved with auxiliary coils (7); The first main magnetic beam (3) and the second main magnetic beam (4) both comprise an axial branch along the axial direction of the main coil core (2), and a first side branch arranged on one side of the axial branch and a second side branch arranged on the other side of the axial branch; the first side branch of the first main magnetic beam (3) and the second side branch of the first main magnetic beam (3) are not on the same straight line, and the first side branch of the second main magnetic beam (4) and the second side branch of the second main magnetic beam (4) are not on the same straight line; the length of the axial branch of the first main magnetic beam (3) and the axial branch of the second main magnetic beam (4) is greater than or equal to the length of the main coil core (2); The first main magnetic beam (3), the second main magnetic beam (4), the first auxiliary magnetic beam (5) and the second auxiliary magnetic beam (6) are arranged around the outside of the main coil core (2) and the main coil (1); one end of the first auxiliary magnetic beam (5) is connected to the first side branch of the first main magnetic beam (3), and the other end is connected to the first side branch of the second main magnetic beam (4); one end of the second auxiliary magnetic beam (6) is connected to the second side branch of the first main magnetic beam (3), and the other end is connected to the second side branch of the second main magnetic beam (4).

2. A magnetic flux pump cross-circuit according to claim 1, characterized in that: The first main magnetic beam (3) and the second main magnetic beam (4) have the same structure and are arranged in parallel; the first auxiliary magnetic beam (5) and the second auxiliary magnetic beam (6) have the same structure and are arranged in parallel.

3. A magnetic flux pump cross-circuit according to claim 1, characterized in that: The main coil (1) and the auxiliary coil (7) are both copper coils or superconducting coils; the first main magnetic beam (3), the second main magnetic beam (4), the first auxiliary magnetic beam (5) and the second auxiliary magnetic beam (6) are silicon steel sheets.

4. A magnetic flux pump cross-circuit according to claim 1, characterized in that: The first main magnetic beam (3), the second main magnetic beam (4), the first auxiliary magnetic beam (5) and the second auxiliary magnetic beam (6) are rectangular parallelepiped, cylindrical or polygonal structures.

5. The cross-magnetic circuit of a magnetic flux pump according to claim 1, characterized in that: The auxiliary coil (7) is a circular tube structure or a rectangular tube structure.

6. A magnetic flux pump cross-circuit according to claim 1, characterized in that: The angle formed by the first main magnetic beam (3) and the first auxiliary magnetic beam (5), the angle formed by the first main magnetic beam (3) and the second auxiliary magnetic beam (6), the angle formed by the second main magnetic beam (4) and the first auxiliary magnetic beam (5), and the angle formed by the second main magnetic beam (4) and the second auxiliary magnetic beam (6) are acute angles, right angles, or obtuse angles.

7. The cross-magnetic circuit of a magnetic flux pump according to claim 1, characterized in that: The auxiliary coil (7) sleeved on the first auxiliary magnetic conductive beam (5) is fixedly arranged on the first auxiliary magnetic conductive beam (5); the auxiliary coil (7) sleeved on the second auxiliary magnetic conductive beam (6) is fixedly arranged on the second auxiliary magnetic conductive beam (6).

8. A magnetic circuit device for a magnetic flux pump cross-magnetic circuit according to claim 1, characterized in that: include: A plurality of cross-magnetic circuits of the flux pump according to claim 1; The main coil core (2) of the first magnetic flux pump cross magnetic circuit is connected to the main coil core (2) end of the second magnetic flux pump cross magnetic circuit, and the axial branch of the first magnetic flux pump cross magnetic circuit is connected to the axial branch end of the second magnetic flux pump cross magnetic circuit.

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