Magnetic conductive structure, manufacturing equipment and manufacturing method

Abstract

The invention provides a magnetic conductive structure, a manufacturing device and a manufacturing method.The magnetic conductive structure comprises a plurality of columnar single bodies, the two ends of the columnar single bodies in the length direction are flush, each columnar single body is provided with a single body side face defining the cross section of the corresponding columnar single body, and the columnar single bodies are connected on the single body side faces; the cross sections of the plurality of columnar monomers define the magnetic conductive surface of the magnetic conductive structure, so that production loss is avoided, and meanwhile, the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to a magnetic conductive structure, manufacturing equipment 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, a manufacturing device and a manufacturing method that can avoid production losses and improve 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, both ends of the plurality of columnar monomers in the length direction are flush respectively, the columnar monomers have a monomer side surface surrounding the cross section of the columnar monomer, the plurality of columnar monomers are connected at the monomer side surface, and the cross sections of the plurality of columnar monomers define the magnetic conductive surface of the magnetic conductive structure.

[0007] As a preferred embodiment, the sides of two adjacent columnar monomers are connected by an adhesive;

[0008] The single body side surface has at least two side surface portions and an edge portion located between the two side surface portions, and a recessed portion for accommodating an adhesive is provided on the edge portion and / or the side surface portion.

[0009] As a preferred embodiment, the recessed portion on the edge portion is arranged continuously or discontinuously. As a preferred embodiment, the cross section of the columnar monomer is circular or polygonal.

[0010] As a preferred embodiment, the equivalent diameter of the cross section of the columnar monomer is less than 3 mm.

[0011] 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.

[0012] As a preferred embodiment, the plurality of columnar monomers are divided into multiple rows, and the columnar monomers in two adjacent rows are staggered.

[0013] As a preferred embodiment, the columnar monomer is die-casted from a magnetic conductive substrate;

[0014] An insulating layer is disposed outside the columnar monomer, and the insulating layer is made of organic, semi-organic or inorganic insulating materials.

[0015] As a preferred embodiment,

[0016] As a preferred embodiment, a shaping layer is arranged on the outer side of the columnar monomer, and the shaping layer is made of amorphous soft magnetic alloy or silicon steel material.

[0017] As a preferred embodiment, the columnar monomer is formed by winding a strip-shaped substrate around the axis of the columnar monomer;

[0018] Insulating varnish is impregnated or insulating material is arranged between each layer of the strip-shaped substrate wound around the columnar monomer.

[0019] As a preferred embodiment, it also includes:

[0020] 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.

[0021] According to another object of the present invention, the present invention also provides a manufacturing device for a magnetic conductive structure, comprising:

[0022] A lower mold, wherein the lower mold has a molding cavity, the cross-sectional shape of the molding cavity defines the contour shape of the magnetic conductive surface of the magnetic conductive structure, and the columnar monomers constituting the magnetic conductive structure are arranged in the molding cavity;

[0023] The upper mold, when the upper mold and the lower mold are closed, the two ends of the columnar monomer in the length direction abut against the upper mold and the bottom of the molding cavity, so that the two ends of the columnar monomer in the length direction are flush with each other, and the cross sections of the columnar monomers define the magnetic conductive surface of the magnetic conductive structure.

[0024] As a preferred embodiment, it also includes:

[0025] A heating component is provided in the molding cavity with an adhesive for bonding the columnar monomers, and the adhesive is heated and cured by the heating component.

[0026] 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:

[0027] S100, placing a plurality of columnar monomers in a molding cavity of a lower mold of a manufacturing device;

[0028] S200, shaping a plurality of columnar monomers by operating a lower mold and an upper mold of a manufacturing device in a mold-closing manner, so that two ends of the columnar monomers in a length direction abut against the bottom of the shaping cavity and the upper mold respectively, and cross sections of the plurality of columnar monomers define a magnetic conductive surface of the magnetic conductive structure;

[0029] S300, taking out a magnetic conductive structure formed by connecting a plurality of columnar monomers on the sides of the monomers by operating the lower mold and the upper mold of the manufacturing equipment in an open mold manner.

[0030] As a preferred embodiment, the side surface of the monomer has at least two side surface portions and an edge portion located between the two side surface portions, and a recessed portion for accommodating an adhesive is provided on the edge portion and / or the side surface portion, and then the step S200 further includes:

[0031] An adhesive is injected into the molding cavity, and the adhesive fills the recessed portion to connect the columnar monomers.

[0032] Compared with the prior art, this technical solution has the following advantages:

[0033] 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.

[0034] An insulating layer is arranged outside the magnetic conductive structure to prevent the columnar monomers from being electrically connected to each other.

[0035] A manufacturing device is provided, which can directly place a plurality of columnar monomers inside the manufacturing device, and a magnetic conductive structure can be manufactured by combining an upper mold and a lower mold of the manufacturing device, and the process is simple and efficient.

[0036] The present invention is further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic diagram of an existing stator core;

[0038] Figure 2 It is a three-dimensional diagram of the first embodiment of the magnetic conductive structure of the present invention;

[0039] Figure 3 It is a front view of the first embodiment of the magnetic conductive structure of the present invention;

[0040] Figure 4 It is a structural schematic diagram of the first embodiment of the recessed portion of the present invention;

[0041] Figure 5 It is a structural schematic diagram of a second embodiment of the recessed portion of the present invention;

[0042] Figure 6 is a cross-sectional view of a second embodiment of the recessed portion of the present invention;

[0043] Figure 7 It is a three-dimensional diagram of a second embodiment of the magnetic conductive structure of the present invention;

[0044] Figure 8 It is a front view of the second embodiment of the magnetic conductive structure of the present invention;

[0045] Fig. 9 A three-dimensional diagram of a third embodiment of the magnetic conductive structure of the present invention;

[0046] Fig.10 It is a front view of the third embodiment of the magnetic conductive structure of the present invention;

[0047] Fig.11 A three-dimensional diagram of a fourth embodiment of the magnetic conductive structure of the present invention;

[0048] Fig.12 It is a front view of a fourth embodiment of the magnetic conductive structure of the present invention;

[0049] Fig.13 A three-dimensional diagram of a columnar monomer of a fourth embodiment of the magnetic conductive structure of the present invention;

[0050] Fig.14 It is a front view of a columnar monomer of the fourth embodiment of the magnetic conductive structure of the present invention;

[0051] Fig.15 It is a structural schematic diagram of the lower mold of the manufacturing equipment of the present invention;

[0052] Fig.16 It is a schematic structural diagram of the upper mold of the manufacturing equipment described in the present invention.

[0053] In the figure: 100 magnetic conductive structure, 110 columnar monomer, 110c monomer side, 111 recessed portion, 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

[0054] 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.

[0055] First embodiment

[0056] like Figure 2 and Figure 3 As shown, the magnetic conductive structure 100 comprises:

[0057] 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, and the cross sections of the plurality of columnar monomers 110 define the magnetic conductive surface of the magnetic conductive structure 100.

[0058] 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.

[0059] 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 .

[0060] 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.

[0061] 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.

[0062] like Figures 2 to 4As 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] like Figures 2 to 4As shown, the monomer side surfaces 110c of two adjacent columnar monomers 110 are connected by adhesive or rivet. Figure 4 The side surface 110c of the columnar monomer 110 is concave to form a concave portion 111 to accommodate the adhesive, so as to increase the contact area between the adhesive and the columnar monomer 110 and improve the stability of the connection. The shape and number of the concave portion 111 can be selected according to design requirements, for example, the shape of the concave portion 111 is circular.

[0069] refer to Figure 4 When the cross section of the columnar monomer 110 is polygonal, the monomer side surface 110c has at least two side surface portions 110c1 and an edge portion 110c2 located between the two side surface portions 110c1. When the cross section of the columnar monomer 110 is square, the number of the side surface portions 110c1 and the edge portion 110c2 are both two, and the recessed portion 111 can be disposed on the side surface portion 110c1.

[0070] like Figure 5 and Figure 6 As shown, the monomer side surface 110c has at least two side surface portions 110c1, and an edge portion 110c2 located between the two side surface portions 110c1, and a recessed portion 111 for placing an adhesive is provided on the edge portion 110c2. Compared with providing the recessed portion 111 on the side surface portion 110c1, the side surface portions 110c of the two columnar monomers 110 are closely fitted, which not only improves the stability of the structural connection, but also effectively reduces the amount of adhesive used, effectively preventing the provision of the recessed portion 111 from reducing the cross-sectional size of the monomer side surface 110c, thereby increasing the effective magnetic flux area.

[0071] refer to Figure 6 In the process of connecting the two columnar monomers 110, a recessed portion 111 is provided at the lower right corner of the upper columnar monomer 110, and a recessed portion 111 is provided at the upper left corner of the lower columnar monomer 110. The two columnar monomers 110 are fixed by the adhesive in the two recessed portions 111 to ensure the stability of the connection between the two. In addition, the recessed portion 111 is configured to be chamfered at the edge portion 110c2 to prevent the cross-sectional size of the columnar monomer 110 from becoming smaller and affecting the magnetic flux area.

[0072] The recessed portion 111 may continuously penetrate the upper and lower end surfaces of the columnar monomer 110, or may be discontinuous. Figure 5The edge portion 110c2 is provided with a plurality of recessed portions 111, and two adjacent edge portions 110c2 are provided intermittently, which not only reduces the amount of adhesive used, but also ensures the structural strength and effective magnetic flux area of ​​the columnar monomer 110. The recessed portions 111 on different columnar monomers 110 can be arranged in a staggered manner to improve the connection strength of the structure.

[0073] like Figure 4 As shown, the formula for the equivalent diameter of the cross section of the columnar monomer 110 is:

[0074] d e =4R

[0075] Where, d e is the equivalent diameter, R is the hydraulic radius, and the formula for R is:

[0076]

[0077] Where A is the cross-sectional area and X is the cross-sectional perimeter.

[0078] When the cross section of the columnar monomer 110 is rectangular, A=ab, X=2(a+b), then

[0079]

[0080] 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.

[0081] 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.

[0082] Furthermore, the equivalent diameter of the cross section of the columnar monomer 110 is preferably 0.5-1 mm.

[0083] Furthermore, the equivalent diameter of the cross section of the columnar monomer 110 is less than 0.5 mm.

[0084] 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.

[0085] 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.

[0086] Second embodiment

[0087] like Figure 7 and Figure 8 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.

[0088] The columnar monomers 110 in each row are connected in sequence, and the columnar monomers 110 in two adjacent rows are staggered.

[0089] 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.

[0090] 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.

[0091] Third embodiment

[0092] like Fig. 9 and Fig.10 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.

[0093] 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.

[0094] Fourth embodiment

[0095] like Figures 11 to 14As 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 .

[0096] 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.

[0097] The layers of the strip-shaped substrate 1100 wound around the columnar monomer 110 can be fixed by adhesive or riveting.

[0098] 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.

[0099] 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.

[0100] Fifth embodiment

[0101] refer to Figure 7 and Figure 8 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.

[0102] 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.

[0103] 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.

[0104] Sixth embodiment

[0105] like Fig.15 and Fig.16 As shown, the manufacturing equipment 200 of the magnetic conductive structure includes:

[0106] 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;

[0107] 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.

[0108] like Fig.15 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.

[0109] like Fig.16 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.

[0110] 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.

[0111] 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.

[0112] The manufacturing equipment 200 of the magnetic conductive structure further includes:

[0113] 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.

[0114] 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.

[0115] The manufacturing equipment 200 can be used to manufacture the magnetic conductive structure 100 described in any one of the first to fifth embodiments.

[0116] Seventh embodiment

[0117] like Figures 2 to 16 As shown, the manufacturing method of the magnetic conductive structure comprises the following steps:

[0118] S100, placing a plurality of columnar monomers 110 in a molding cavity 2100 of a lower mold 210 of a manufacturing device 200;

[0119] S200, 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;

[0120] S300 , 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.

[0121] In the step S100 , 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 .

[0122] The step S200 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 .

[0123] 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.

[0124] The monomer side surface 110c has at least two side portions 110c1, and an edge portion 110c2 located between the two side portions 110c1, and a recessed portion 111 for accommodating an adhesive is provided on the edge portion 110c2 and / or the side portion 110c1, and the step S200 further includes injecting an adhesive into the molding cavity 2100 so that the columnar monomers 110 are fixed by the adhesive.

[0125] With respect to the recessed portion 111 formed on the side portion 110c1, adhesive may be injected into the recessed portion 111 and the entire 110c1 may be filled with adhesive, and then the recessed portion 111 may be placed in the molding cavity 2100 of the lower mold 210, and adhesive may be injected into the molding cavity 2100 to fill the gaps between the columnar monomers 110 with the adhesive, thereby increasing the connection strength.

[0126] As for the recessed portion 111 formed on the edge portion 110c2, when the columnar monomer 110 is arranged in the molding cavity 2100, the recessed portion 111 formed on the edge portion 110c2 is exposed to the outside, and when the adhesive is injected into the molding cavity 2100, the adhesive will fill the recessed portion 111 on the edge portion 110c2.

[0127] In the step S300 , after the adhesive is cooled, the magnetic conductive structure 100 is taken out.

[0128] 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.

[0129] 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), both ends of the plurality of columnar monomers (110) in the length direction are flush with each other, 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), and the cross sections of the plurality of columnar monomers (110) define the magnetic conductive surface of the magnetic conductive structure (100).

2. 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 an adhesive; the monomer side surface (110c) has at least two side surface portions (110c1) and an edge portion (110c2) located between the two side surface portions (110c1); a recessed portion (111) for accommodating the adhesive is provided on the edge portion (110c2) and / or the side surface portion (110c1).

3. The magnetic conductive structure (100) according to claim 2, characterized in that: The recessed portion (111) located on the edge portion (110c2) is arranged continuously or discontinuously.

4. The magnetic conductive structure (100) according to claim 1, characterized in that: The columnar monomer (110) is formed by die-casting a magnetic conductive substrate; An insulating layer is arranged on the outer side of the columnar monomer (110), and the insulating layer is made of organic, semi-organic or inorganic insulating material.

5. The magnetic conductive structure (100) according to claim 1, characterized in that: The columnar monomer (110) is formed by winding a strip-shaped substrate (1100) around the axis of the columnar monomer (110); Insulating varnish is impregnated or insulating material is arranged between each layer of the strip-shaped substrate (1100) wound around the columnar monomer (110).

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. A manufacturing device (200) for a magnetic conductive structure, characterized in that: include: A lower mold (210), the lower mold (210) having a molding cavity (2100), the cross-sectional shape of the molding cavity (2100) defining 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) being arranged in the molding cavity (2100); The upper mold (220) is configured such that 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 monomer (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).

8. The manufacturing device (200) of the magnetic conductive structure according to claim 7, characterized in that: Also includes: 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.

9. A method for manufacturing a magnetic conductive structure, characterized in that: The following steps are involved: S100, placing a plurality of columnar monomers (110) in a molding cavity (2100) of a lower mold (210) of a manufacturing device (200); S200, 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 respectively abut against the bottom of the shaping cavity (2100) and the upper mold (220), and the cross sections of the plurality of columnar monomers (110) define the magnetic conductive surface of the magnetic conductive structure (100); S300, by operating the lower mold (210) and the upper mold (220) of the manufacturing equipment (200) in an open mold manner, a magnetic conductive structure (100) formed by connecting a plurality of columnar monomers (110) on the monomer side surface (110c) is taken out.

10. The method for manufacturing a magnetic conductive structure according to claim 9, characterized in that: The monomer side surface (110c) has at least two side surface portions (110c1) and an edge portion (110c2) located between the two side surface portions (110c1), and a recessed portion (111) for accommodating an adhesive is provided on the edge portion (110c2) and / or the side surface portion (110c1), and the step S200 further includes: An adhesive is injected into the molding cavity (2100), and the adhesive fills the recessed portion (111) to connect the columnar monomer (110).

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