Magnetic conductive structure and manufacturing method

Abstract

The invention provides a magnetic conductive structure and a manufacturing method, and the magnetic conductive structure comprises a plurality of columnar single bodies, each columnar single body is provided with a single body side surface which forms the cross section of the corresponding columnar single body, and the columnar single bodies are connected at the single body side surfaces, so that the production loss is avoided, the production efficiency is improved, and the production cost is reduced. The columnar single bodies are insulated through an insulating material, so that the columnar single bodies are prevented from being mutually conducted.

Description

Technical Field

[0001] The invention relates to a magnetic conductive structure and a manufacturing method. Background Art

[0002] With the trend of miniaturization of electrical equipment, the demand for micro motors is increasing. Axial flux motors have many advantages such as small size, light weight, compact structure, high efficiency, etc., and are widely used in various industrial equipment. In the prior art, the stator core for axial flux motors is made of laminated silicon steel sheets, which are obtained by punching out sheet substrates.

[0003] On the one hand, since the stator core of the axial flux motor is roughly trapezoidal or fan-shaped, the size of each silicon steel sheet is slightly different, so when punching the silicon steel sheet, there is inevitably a loss of raw materials, which greatly affects the production cost. On the other hand, the series of processes such as punching and laminating the silicon steel sheet are cumbersome and the production efficiency is not high. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a magnetic conductive structure that avoids production losses and improves production efficiency.

[0005] According to one object of the present invention, the present invention provides a magnetic conductive structure, comprising:

[0006] A plurality of columnar monomers, each of which has a monomer side surface surrounding a cross section of the columnar monomer, and the plurality of columnar monomers are connected at the monomer side surface, and the columnar monomers are insulated by an insulating material.

[0007] As a preferred embodiment, the side surfaces of two adjacent columnar monomers are connected by adhesive or rivet connection.

[0008] As a preferred embodiment, the cross section of the columnar monomer is circular or polygonal.

[0009] As a preferred embodiment, the equivalent diameter of the cross section of the columnar monomer is less than 3 mm.

[0010] As a preferred embodiment, the contour shape of the magnetic conductive surface of the magnetic conductive structure is trapezoidal, fan-shaped, circular, square or horseshoe-shaped.

[0011] As a preferred embodiment, the plurality of columnar monomers are divided into multiple rows, and the columnar monomers in two adjacent rows are staggered.

[0012] As a preferred embodiment, the columnar monomer is formed by die-casting of a magnetic conductive substrate, and an insulating layer made of an insulating material is arranged on the outside of the columnar monomer.

[0013] As a preferred embodiment, a shaping layer is disposed on the outer side of the columnar monomer, and the shaping layer is made of amorphous soft magnetic alloy or silicon steel material.

[0014] As a preferred embodiment, the columnar monomer is formed by winding a strip substrate around the axis of the columnar monomer, and insulating paint or insulating layer is impregnated between each layer of the strip substrate wound in the columnar monomer, and the insulating paint and the insulating layer are made of insulating material.

[0015] As a preferred embodiment, it also includes:

[0016] An outer frame defines the contour shape of the magnetic conductive surface of the magnetic conductive structure, and the columnar monomer is arranged inside the outer frame.

[0017] According to another object of the present invention, the present invention also provides a method for manufacturing a magnetic conductive structure, comprising the following steps:

[0018] S100, providing a plurality of columnar monomers, wherein the columnar monomers have a monomer side surface surrounding a cross section of the columnar monomer;

[0019] S200, a plurality of the columnar monomers are connected at the sides of the monomers to obtain the magnetic conductive structure.

[0020] As a preferred embodiment, the lengths of the plurality of columnar monomers are different, and then the step S200 includes: trimming the lengths of the columnar monomers so that both ends of the length direction of the columnar monomers are flush with each other;

[0021] Alternatively, the lengths of the plurality of columnar monomers are equal, and then the step S200 includes: both ends of the length direction of each columnar monomer are flush with each other.

[0022] As a preferred embodiment, the step S200 includes: injecting an adhesive between the columnar monomers so that the columnar monomers are fixed by the adhesive. Compared with the prior art, this technical solution has the following advantages:

[0023] The magnetic conductive structure is formed by splicing a plurality of columnar monomers of the same size, and the cross sections of the plurality of columnar monomers form and define the magnetic conductive surface of the magnetic conductive structure, thereby reducing production losses, saving costs, and improving production efficiency.

[0024] An insulating layer is arranged outside the magnetic conductive structure to prevent the columnar monomers from being electrically connected to each other.

[0025] The present invention is further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of an existing stator core;

[0027] Figure 2 It is a three-dimensional diagram of the first embodiment of the magnetic conductive structure of the present invention;

[0028] Figure 3 It is a front view of the first embodiment of the magnetic conductive structure of the present invention;

[0029] Figure 4 It is a three-dimensional diagram of the second embodiment of the magnetic conductive structure of the present invention;

[0030] Figure 5 It is a front view of the second embodiment of the magnetic conductive structure of the present invention;

[0031] Figure 6 It is a three-dimensional diagram of a third embodiment of the magnetic conductive structure of the present invention;

[0032] Figure 7 It is a front view of the third embodiment of the magnetic conductive structure of the present invention;

[0033] Figure 8 A three-dimensional diagram of a fourth embodiment of the magnetic conductive structure of the present invention;

[0034] Fig. 9 It is a front view of a fourth embodiment of the magnetic conductive structure of the present invention;

[0035] Fig.10 A three-dimensional diagram of a columnar monomer of a fourth embodiment of the magnetic conductive structure of the present invention;

[0036] Fig.11 It is a front view of a columnar monomer of the fourth embodiment of the magnetic conductive structure of the present invention;

[0037] Fig.12 It is a structural schematic diagram of the lower mold of the manufacturing equipment of the present invention;

[0038] Fig.13 It is a schematic structural diagram of the upper mold of the manufacturing equipment described in the present invention.

[0039] In the figure: 100 magnetic conductive structure, 110 columnar monomer, 110c monomer side, 1100 strip substrate, 120 outer frame, 200 manufacturing equipment, 210 lower mold, 2100 molding cavity, 211 lower bottom plate, 212 lower side plate, 220 upper mold, 300 stator core, 310 silicon steel sheet. DETAILED DESCRIPTION

[0040] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0041] First embodiment

[0042] like Figure 2 and Figure 3 As shown, the magnetic conductive structure 100 comprises:

[0043] A plurality of columnar monomers 110, both ends of the columnar monomers 110 in the length direction are flush respectively, the columnar monomers 110 have a monomer side surface 110c surrounding the cross section of the columnar monomer 110, the plurality of columnar monomers 110 are connected at the monomer side surface 110c, the cross sections of the plurality of columnar monomers 110 define the magnetic conductive surface of the magnetic conductive structure 100, and the columnar monomers are insulated by organic, semi-organic, or inorganic insulating materials.

[0044] The dimensions of each of the columnar monomers 110 are consistent, including the length, cross-sectional shape, etc. of each of the columnar monomers 110 are roughly the same. In this way, a number of columnar monomers 110 with consistent dimensions are connected on the monomer side 110c, so that the cross-sections of the several columnar monomers 110 form and define the magnetic conductive surface of the magnetic conductive structure 100, thereby reducing production losses, saving costs, and improving production efficiency.

[0045] The length of the columnar monomer 110 determines the height of the magnetic conductive structure 100 , and after a plurality of the columnar monomers 110 are arranged in order, the shape of the outer edge connection line determines the shape of the magnetic conductive surface of the magnetic conductive structure 100 .

[0046] refer to Figure 1 , the existing stator core 300 is composed of a number of silicon steel sheets 310 with inconsistent widths, and the several silicon steel sheets 310 are spliced ​​in a manner of gradually increasing width to obtain a stator core 300 with a trapezoidal magnetic conductive surface. . The silicon steel sheet 310 is obtained by punching out a sheet substrate, and the width of each silicon steel sheet 310 is different. Therefore, when punching out the silicon steel sheet 310, there is inevitably a loss of raw materials, which greatly affects the production cost. In addition, in the process of splicing the silicon steel sheets 310 into the stator core 300, it is necessary to splice them in a manner of gradually increasing width, which makes the forming process of the stator core 300 cumbersome and the production efficiency is not high. The magnetic conductive structure 100 of this embodiment is composed of a number of columnar monomers 110 of uniform size, which reduces the loss of raw materials, simplifies the forming process, and effectively improves the production efficiency.

[0047] The magnetic conductive structure 100 can be used not only as a stator core, but also as a magnetic conductive block for manufacturing motors, generators, inductors, transformers, etc.

[0048] like Figures 2 to 4 As shown, the lengths and cross-sectional shapes of several columnar monomers 110 are consistent, wherein several columnar monomers 110 are divided into multiple rows, and the number of columnar monomers 110 in each row may be different. When the magnetic conductive surface of the magnetic conductive structure 100 is trapezoidal, several columnar monomers 110 are divided into multiple rows along the height direction of the trapezoid, and the number of columnar monomers 110 in each row gradually increases from the upper bottom to the lower bottom of the trapezoid, thereby forming a magnetic conductive structure 100 with a trapezoidal magnetic conductive surface. In addition, the number of columnar monomers 110 in the row close to the lower bottom of the trapezoid can be reduced, so that the angle between the lower bottom and the waist of the trapezoid is rounded.

[0049] Of course, the number of the columnar monomers 110 may be increased after every three rows, that is, the number of the columnar monomers 110 in the three rows is equal, and the number is selected according to the design requirements.

[0050] The cross sections of the plurality of columnar monomers 110 are all square, so as to form a magnetic conductive structure 100 with a trapezoidal magnetic conductive surface. Of course, the cross sections of the columnar monomers 110 constituting the magnetic conductive structure 100 are different, and only the lengths of the columnar monomers 110 are the same.

[0051] refer to Figure 3 , a plurality of columnar monomers 110 are divided into multiple rows, and the columnar monomers 110 in two adjacent rows are staggered. That is, in two adjacent rows of columnar monomers 110, the columnar monomers 110 in one row are located between two adjacent columnar monomers 110 in another row, so that the columnar monomers 110 in two adjacent rows are staggered, which not only improves the connection strength, but also increases the area of ​​the magnetic conductive surface.

[0052] Furthermore, the columnar monomers 110 in each row are arranged at intervals to prevent mutual conduction between them. Of course, an insulating layer can also be arranged on the outside of the columnar monomers 110 to prevent mutual conduction between the columnar monomers 110, and the insulating layer is made of organic, semi-organic, or inorganic insulating materials. The insulating layer can be wrapped on the surface of the columnar monomer 110 after the columnar monomer 110 is die-cast, or dipped in a liquid insulating material. When the insulating material is solidified, an insulating layer is formed on the outside of the columnar monomer 110. Of course, the insulating layer can be die-cast together with the columnar monomer 110 to facilitate the molding of the insulating layer.

[0053] It should be noted that the cross-sections of the columnar monomers 110 are spliced ​​together to form the magnetic conductive surface of the magnetic conductive structure 100, wherein the outer contour edges of the spliced ​​columnar monomers 110 determine the shape of the magnetic conductive surface, and the sum of the cross-sectional areas of the columnar monomers 110 is equal to the area of ​​the magnetic conductive surface.

[0054] like Figures 2 to 4 As shown, the monomer side surfaces 110c of two adjacent columnar monomers 110 are connected by adhesive or rivets.

[0055] like Figure 4 As shown, the formula for the equivalent diameter of the cross section of the columnar monomer 110 is:

[0056] d e =4R

[0057] Where, d e is the equivalent diameter, R is the hydraulic radius, and the formula for R is:

[0058]

[0059] Where A is the cross-sectional area and X is the cross-sectional perimeter.

[0060] When the cross section of the columnar monomer 110 is rectangular, A=ab, X=2(a+b), then

[0061]

[0062] Where, d e is the equivalent diameter, and a and b are the length and width of the square cross section of the columnar monomer 110 respectively.

[0063] By adjusting the size of the cross section of the columnar monomer 110, the number of the columnar monomers 110 is increased accordingly, that is, the number of rows of the columnar monomers 110 is ensured to reduce eddy current losses, while ensuring the manufacturability of the columnar monomers 110. For example, the columnar substrate is punched out according to the same length to obtain a plurality of the columnar monomers 110 of the same material, so that the columnar monomer 110 is obtained by processing, and the equivalent diameter of the cross section of the columnar monomer 110 is less than 3 mm.

[0064] Furthermore, the equivalent diameter of the cross section of the columnar monomer 110 is preferably 0.5-1 mm.

[0065] Furthermore, the equivalent diameter of the cross section of the columnar monomer 110 is less than 0.5 mm.

[0066] The columnar monomer 110 can be die-casted from a magnetic conductive substrate, and the magnetic conductive substrate includes silicon steel, soft magnetic ferrite, soft magnetic composite material, amorphous soft magnetic alloy, nanocrystalline soft magnetic alloy, etc. In addition, a shaping layer can be provided on the outer side of the columnar monomer 110, and the shaping layer is made of amorphous soft magnetic alloy, silicon steel and other magnetic conductive materials, and the shaping layer is coated on the surface of the columnar monomer 110.

[0067] In summary, the magnetic conductive structure 100 is composed of a plurality of columnar monomers 110 of the same size, and the cross sections of the plurality of columnar monomers 110 form and define the magnetic conductive surface of the magnetic conductive structure 100, which reduces production loss, saves costs, and improves production efficiency. An insulating layer may be provided on the outside of the magnetic conductive structure 100 to prevent the columnar monomers 110 from being electrically connected to each other.

[0068] Second embodiment

[0069] like Figure 4 and Figure 5 As shown, the magnetic conductive structure of the second embodiment is different from that of the first embodiment in that the cross section of the columnar monomer 110 is circular.

[0070] The columnar monomers 110 in each row are connected in sequence, and the columnar monomers 110 in two adjacent rows are staggered.

[0071] When the cross section of the columnar monomer 110 is circular, the equivalent diameter of the cross section of the columnar monomer 110 is equal to the circular diameter of the cross section.

[0072] When the cross section of the columnar monomer 110 is circular, the gap between the columnar monomers 110 is larger than the gap between the columnar monomers 110 with a square cross section. It can be seen that the magnetic conductive structure 100 composed of the columnar monomers 110 with a circular cross section has the smallest magnetic conductive area. Therefore, the cross section of the columnar monomer 110 is preferably square.

[0073] Third embodiment

[0074] like Figure 6 and Figure 7 As shown, the magnetic conductive structure of the third embodiment is different from that of the first embodiment in that the cross section of the columnar monomer 110 is a regular hexagon.

[0075] The columnar monomers 110 in each row are connected by edge alignment, and the columnar monomers 110 in two adjacent rows are staggered, wherein the columnar monomers 110 in one row are respectively connected by edge alignment with two adjacent columnar monomers 110 in another row.

[0076] Fourth embodiment

[0077] like Figures 8 to 11As shown, the magnetic conductive structure of the fourth embodiment is different from that of the second embodiment in that the columnar monomer 110 is formed by winding a strip-shaped substrate 1100 around the axis of the columnar monomer 110 .

[0078] The layers of the strip-shaped substrate 1100 wound by the columnar monomer 110 are impregnated with insulating paint or provided with insulating materials, and the insulating materials include organic, semi-organic or inorganic insulating materials. That is, the strip-shaped substrate 1100 is first directly immersed in the liquid insulating material, and the insulating paint is directly formed on the outer side of the strip-shaped substrate 1100 after solidification, and then after the strip-shaped substrate 1100 is wound to form the columnar monomer 110, the layers of the strip-shaped substrate 1100 are separated by the insulating paint. In addition, an insulating material can be provided on the inner surface of the strip-shaped substrate 1100, and the two are wound together to form the columnar monomer 110, and at this time, the layers of the strip-shaped substrate 1100 are separated by the insulating material.

[0079] The layers of the strip-shaped substrate 1100 wound around the columnar monomer 110 can be fixed by adhesive or riveting.

[0080] The magnetic conductive structure 100 further includes an outer frame 120, which defines the contour of the magnetic conductive surface of the magnetic conductive structure 100, and the columnar monomer 110 is disposed inside the outer frame 120. The outer frame 120 is provided to further ensure the overall stability of the magnetic conductive structure 100, but the outer frame 120 is not necessary.

[0081] The outer frame 120 may be made of a magnetic conductive material or a non-metallic material, wherein the outer frame 120 is in a trapezoidal shape, but is not limited thereto.

[0082] Fifth embodiment

[0083] refer to Figure 4 and Figure 5 The cross section of the columnar monomer 110 is circular, and its equivalent diameter is very small, so that the columnar monomer 110 is close to a filament. At this time, the columnar monomer 110 is die-casted from a magnetic conductive substrate of an amorphous soft magnetic alloy or a nanocrystalline soft magnetic alloy, and the columnar monomers 110 are fixedly connected by an adhesive.

[0084] As can be seen from the above, the columnar monomer 110 is die-casted from a magnetic conductive substrate, or the columnar monomer 110 is formed by winding a strip-shaped substrate 1100 around the axis of the columnar monomer 110. The cross-section of the columnar monomer 110 can be rectangular, square, regular hexagonal, regular polygonal, circular or elliptical, etc., and the magnetic conductive surface of the insulating structure 100 can be circular, elliptical, square or horseshoe-shaped, etc., so as to be used to manufacture magnetic conductive blocks of inductors, transformers, etc.

[0085] When the magnetic conductive structure 100 is used as a stator core of an axial magnetic field motor, the magnetic conductive structure 100 is in a trapezoidal or fan-shaped shape.

[0086] Sixth embodiment

[0087] like Figures 2 to 11 As shown, the manufacturing method of the magnetic conductive structure comprises the following steps:

[0088] S100, providing a plurality of columnar monomers 110, wherein the columnar monomers 110 have a monomer side surface 110c surrounding a cross section of the columnar monomers 110;

[0089] S200 , a plurality of the columnar monomers 110 are connected at the monomer side surface 110 c to obtain the magnetic conductive structure 100 . It can be seen that the cross-sections of the plurality of the columnar monomers 110 determine the magnetic conductive surface of the magnetic conductive structure 100 .

[0090] The manufacturing method of the magnetic conductive structure can be used to manufacture any one of the magnetic conductive structures 100 in the first to fifth embodiments.

[0091] In the step S100 , the cross section of the columnar monomer 110 may be rectangular, square, regular hexagonal, regular polygonal, circular or elliptical, etc. The columnar monomer 110 may be formed by die-casting a magnetic conductive substrate, or the columnar monomer 110 may be formed by winding a strip substrate 1100 around the axis of the columnar monomer 110 .

[0092] In the step S200, the lengths of the plurality of columnar monomers 110 are different, and the step S200 includes: trimming the lengths of the columnar monomers 110 so that the two ends of the length direction of the columnar monomers 110 are flush, so that the two end surfaces of the obtained magnetic conductive structure 100 are flush. The two ends of the length direction of the columnar monomers 110 correspond to the two end surfaces of the magnetic conductive structure 100.

[0093] In addition, the lengths of the plurality of columnar monomers 110 are equal, and the step S200 includes: the two ends of the length direction of each columnar monomer 110 are flush, so that the two end surfaces of the obtained magnetic conductive structure 100 are flush. This reduces the subsequent cutting steps, improves the manufacturing efficiency, further saves raw materials, and can better meet the needs of stators of different sizes.

[0094] The step S200 further includes: injecting an adhesive between the columnar monomers 110 to fix the columnar monomers 110 via the adhesive.

[0095] The manufacturing method of the magnetic conductive structure can be as follows: Fig.12 and Fig.13 The manufacturing device 200 is used for manufacturing. Specifically, the manufacturing device 200 of the magnetic conductive structure includes:

[0096] A lower mold 210, wherein the lower mold 210 has a molding cavity 2100, the cross-sectional shape of the molding cavity 2100 defines the contour shape of the magnetic conductive surface of the magnetic conductive structure 100, and the columnar monomers 110 constituting the magnetic conductive structure 100 are arranged in the molding cavity 2100;

[0097] The upper mold 220, when the upper mold 220 and the lower mold 210 are closed, the two ends of the columnar monomer 110 in the length direction abut against the upper mold 220 and the bottom of the molding cavity 2100, so that the two ends of the columnar monomers 110 in the length direction are flush with each other, and the cross sections of the columnar monomers 110 define the magnetic conductive surface of the magnetic conductive structure 100.

[0098] like Fig.12 As shown, the lower mold 210 includes a lower base plate 211 and a lower side plate 212, the lower base plate 211 is connected to the lower surface of the lower side plate 212 to form the molding cavity 2100 inside the lower side plate 212, and the lower surface of the lower side plate 212 is closed by the lower base plate 211, the molding cavity 2100 is exposed on the upper surface of the lower side plate 212, the columnar monomer 110 is placed in the molding cavity 2100 through the opening on the upper surface of the lower side plate 212, and then the upper mold 220 is connected to the upper surface of the lower side plate 212 to achieve the molding of the upper mold 220 and the lower mold 210.

[0099] like Fig.13 As shown, the upper mold 220 may be in a plate shape, wherein the shapes of the upper mold 220, the lower bottom plate 211 and the lower side plate 212 may be consistent.

[0100] The cross section of the molding cavity 2100 determines the shape of the magnetic conductive surface of the magnetic conductive structure 100. For example, if the cross section of the molding cavity 2100 is a trapezoid, the magnetic conductive surface of the magnetic conductive structure 100 is a trapezoid. The depth of the molding cavity 2100 determines the length of the columnar monomer 110 and the height of the magnetic conductive structure 100.

[0101] The lower bottom plate 211 can move up and down relative to the lower side plate 212 so as to eject the shaped magnetic conductive structure 100 from the shaping cavity 2100 for easy material removal.

[0102] The manufacturing equipment 200 of the magnetic conductive structure further includes:

[0103] A heating component is provided in the molding cavity 2100 with an adhesive for bonding the columnar monomer 110 , and the adhesive is heated and cured by the heating component.

[0104] The heating component can be a container, and the upper mold 220 and the lower mold 210 of the combined film are placed in the heating component as a whole to heat and cure the bonding member. Of course, the heating component can be a heating circuit, which is directly arranged on the upper mold 220 and / or the lower mold 210, that is, directly heats the upper mold 220 and / or the lower mold 210 to heat and cure the bonding member.

[0105] Then the step S200 includes the following steps:

[0106] S210, placing a plurality of columnar monomers 110 in the molding cavity 2100 of the lower mold 210 of the manufacturing equipment 200;

[0107] S220, shaping a plurality of columnar monomers 110 by operating the lower mold 210 and the upper mold 220 of the manufacturing device 200 in a mold-closing manner, so that the two ends of the columnar monomers 110 in the length direction abut against the bottom of the shaping cavity 2100 and the upper mold 220 respectively, and the cross sections of the plurality of columnar monomers 110 define the magnetic conductive surface of the magnetic conductive structure 100;

[0108] S230 , by operating the lower mold 210 and the upper mold 220 of the manufacturing equipment 200 to open the mold, take out the magnetic conductive structure 100 formed by connecting a plurality of columnar monomers 110 on the monomer side surface 110 c.

[0109] In the step S210 , the cross section of the shaping cavity 2100 defines the shape of the magnetic conductive surface of the magnetic conductive structure 100 , and a plurality of the columnar monomers 110 are arranged in an orderly manner and disposed in the shaping cavity 2100 .

[0110] The step S220 further includes cutting off the columnar monomers 110 protruding from the upper surface of the lower plate 212 of the lower mold 210 to ensure the flatness of the two end surfaces of the magnetic conductive structure 100 .

[0111] Alternatively, the columnar monomer 110 is pre-cut to a suitable length and placed in the molding cavity 2100. At this time, the length of the columnar monomer 110 is consistent with the depth of the molding cavity 21000, which reduces the subsequent cutting steps, improves manufacturing efficiency, further saves raw materials, and better matches the needs of stators of different sizes.

[0112] An adhesive for bonding the columnar monomers 110 is injected into the molding cavity 2100 , and then in the step S230 , after the adhesive is cooled, the magnetic conductive structure 100 is taken out.

[0113] In summary, the magnetic conductive structure 100 is composed of a number of columnar monomers 110 of the same size. The cross sections of the columnar monomers 110 form and define the magnetic conductive surface of the magnetic conductive structure 100, which reduces production losses, saves costs, and improves production efficiency. An insulating layer can be set on the outside of the magnetic conductive structure 100 to prevent the columnar monomers 110 from being electrically connected to each other. A manufacturing device 200 is provided, and a number of columnar monomers 110 can be directly placed inside the manufacturing device 200. The magnetic conductive structure 100 can be obtained by combining the upper mold 220 and the lower mold 210 of the manufacturing device 200. The process is simple and efficient.

[0114] The embodiments described above are only used to illustrate the technical ideas and features of the present invention, and their purpose is to enable technicians in this field to understand the content of the present invention and implement it accordingly. The patent scope of the present invention cannot be limited only by this embodiment, that is, any equivalent changes or modifications made according to the spirit disclosed by the present invention still fall within the patent scope of the present invention.

Claims

1. A magnetic conductive structure (100), characterized in that: include: A plurality of columnar monomers (110), each of the columnar monomers (110) having a monomer side surface (110c) surrounding a cross section of the columnar monomer (110), the plurality of columnar monomers (110) being connected at the monomer side surface (110c), and the columnar monomers (110) being insulated by an insulating material.

2. The magnetic conductive structure (100) according to claim 1, characterized in that: A shaping layer is arranged on the outer side of the columnar monomer (110), and the shaping layer is made of amorphous soft magnetic alloy or silicon steel material.

3. The magnetic conductive structure (100) according to claim 1, characterized in that: The cross section of the columnar monomer (110) is circular or polygonal; And / or, the equivalent diameter of the cross section of the columnar monomer (110) is less than 3 mm.

4. The magnetic conductive structure (100) according to claim 1, characterized in that: The contour shape of the magnetic conductive surface of the magnetic conductive structure (100) is trapezoidal, fan-shaped, circular, square or horseshoe-shaped.

5. The magnetic conductive structure (100) according to claim 1, characterized in that: The monomer side surfaces (110c) of two adjacent columnar monomers (110) are connected by adhesive or riveting.

6. The magnetic conductive structure (100) according to claim 1, characterized in that: Also includes: An outer frame (120), the outer frame (120) defines the contour shape of the magnetic conductive surface of the magnetic conductive structure (100), and the columnar monomer (110) is arranged inside the outer frame (120).

7. The magnetic conductive structure (100) according to any one of claims 1 to 6, characterized in that: The columnar monomer (110) is formed by die-casting a magnetic conductive substrate, and an insulating layer made of insulating material is arranged on the outside of the columnar monomer (110).

8. The magnetic conductive structure (100) according to any one of claims 1 to 6, characterized in that: The columnar monomer (110) is formed by winding a strip-shaped substrate (1100) around the axis of the columnar monomer (110), and insulating varnish or insulating layer is impregnated between each layer of the strip-shaped substrate (1100) wound around the columnar monomer (110), and the insulating varnish and the insulating layer are made of insulating material.

9. A method for manufacturing a magnetic conductive structure (100), characterized in that: The following steps are involved: S100, providing a plurality of columnar monomers (110), wherein the columnar monomers (110) have a monomer side surface (110c) surrounding a cross section of the columnar monomer (110); S200, a plurality of the columnar monomers (110) are connected at the monomer side surfaces (110c) to obtain the magnetic conductive structure (100).

10. The method for manufacturing the magnetic conductive structure (100) according to claim 9, characterized in that: The lengths of the plurality of columnar monomers (110) are different, and thus the step S200 comprises: trimming the length of each columnar monomer (110) so that both ends of the length direction of each columnar monomer (110) are flush with each other; Alternatively, the lengths of the plurality of columnar monomers (110) are equal, and then the step S200 includes: both ends of the length direction of each columnar monomer (110) are flush with each other.

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