Axial field motor rotor disc, manufacturing apparatus, rotor assembly and manufacturing method

By using ejection structures and mold-closing technology in the production of axial magnetic field motor rotors, the problems of high material costs and low production efficiency have been solved, achieving efficient automated production and improving product consistency and pass rate.

CN116317260BActive Publication Date: 2026-08-25ZHEJIANG PANGOOD POWER TECH CO LTD
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Patent Information

Application Number
CN202310385759.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-12
Publication Date
2026-08-25
Estimated Expiration
2043-04-12

AI Technical Summary

Technical Problem

The production of axial magnetic field motor rotors currently suffers from high material costs, low production efficiency, complex assembly, and difficulty in automation, especially the high cost and low efficiency caused by the molding process of the cage and retaining ring.

Method used

A manufacturing equipment and method are adopted to form a magnetic steel limiting groove by an ejector structure and a lower mold. After the mold is closed, a molding cavity is formed between the magnetized magnets, and molding material is injected to form the integral body. This simplifies the process, reduces the number of parts, and improves product consistency and pass rate.

Benefits of technology

It improved production efficiency, reduced material costs, simplified assembly processes, enabled automated production, and increased product qualification rate and manufacturing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to axial magnetic field motor, especially to an axial magnetic field motor rotor disc, manufacturing equipment, rotor assembly and manufacturing method, wherein the manufacturing equipment comprises an upper die with an upper forming surface, a lower die with a plurality of circumferentially spaced lower forming surfaces, and an ejection structure arranged between the lower forming surfaces in a lifting manner, wherein when the ejection structure protrudes from the lower forming surfaces, a magnetic steel limiting groove with the lower forming surfaces as the bottom is formed between the ejection structure and the lower die; when the ejection structure is flush with the lower forming surfaces, a forming cavity is formed between the magnetized magnetic steels positioned by the upper forming surface and the lower forming surface, a combination is formed in the forming cavity, and the combination combines the magnetized magnetic steels to form the rotor disc. The magnetized magnetic steels are prevented from being displaced due to mutual attraction, thereby ensuring the consistency of the product and effectively improving the qualified rate of the product.
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Description

Technical Field

[0001] This invention relates to the field of axial magnetic field motors, and more particularly to an axial magnetic field motor rotor disk, manufacturing equipment, rotor assembly, and manufacturing method. Background Technology

[0002] Axial field motors, also known as disc motors, have advantages such as small axial dimensions, high torque density, high power density, and high efficiency, and are widely used in electric vehicles, general industrial applications, and household appliances. When an axial field motor is running, the rotor is rotating and simultaneously subjected to gravity, bearing support force, centrifugal force, torque, and eccentric magnetic pull. Maintaining stable and vibration-free rotation requires close and consistent fit among all rotor components.

[0003] refer to Figure 1 Existing rotors generally include several magnets 1, a cage 2, and a retaining ring 3. The magnets 1 are integral structures and are magnetized, with their magnetic poles distributed axially. The magnets 1 are inserted into the cage 2, and the retaining ring 3 is fitted around the outer periphery of the cage 2 to limit and fix the magnets 1. However, it has the following drawbacks:

[0004] 1. The retainer 2 and the fixing ring 3 are made of prepreg, which is a sheet product made by impregnating the matrix with reinforcing fibers. The matrix material is mainly resin, which makes the material cost high. Moreover, the special shape of the retainer 2 makes the material utilization rate low, which further increases the cost.

[0005] 2. Both the retaining ring 3 and the retainer 2 require molding followed by machining. The retaining ring 3 is manufactured using winding molding, and the retainer 2 is manufactured using lamination molding. Lamination molding involves cutting the prepreg to the required size and shape of the product, stacking it into the required number of layers, and then placing it into a metal mold for forming. Winding molding involves winding the prepreg onto a mold core of a specific shape and then forming it in a metal mold. Stacking or winding the material before placing it into the mold consumes a significant amount of time, directly leading to low production efficiency. Furthermore, the manufacturing precision of molding is not high, requiring machining to adjust the dimensions, further reducing production efficiency and increasing production costs.

[0006] 3. To ensure a tight fit between the magnet 1, the retainer 2, and the fixing ring 3, all assembly contact surfaces must be coated with glue before assembly, resulting in low production efficiency, inability to automate, and high manual assembly costs.

[0007] 4. The existing technical route involves many assembly processes. In order to ensure assembly accuracy, the assembly dimensions of each component are required to be high, resulting in a low part qualification rate and high production management difficulty. Summary of the Invention

[0008] To address the aforementioned problems, this invention provides an axial magnetic field motor rotor disk, manufacturing equipment, rotor assembly, and manufacturing method that improve production efficiency and reduce material costs.

[0009] According to one objective of the present invention, the present invention provides a manufacturing apparatus for an axial magnetic field motor rotor disk, the manufacturing apparatus comprising:

[0010] Upper mold, the upper mold having an upper forming surface;

[0011] The lower mold has several circumferentially spaced lower forming surfaces;

[0012] An ejector structure is provided between the lower forming surfaces in a lifting manner. When the ejector structure protrudes from the lower forming surface, a magnetic steel limiting groove with the lower forming surface as the bottom is formed between the ejector structure and the lower mold. When the ejector structure is flush with the lower forming surface, a forming cavity is formed between the magnetized magnets positioned by the upper forming surface and the lower forming surface. The assembly is formed in the forming cavity, and the assembly and the magnetized magnets form the rotor disk.

[0013] In a preferred embodiment, the manufacturing equipment further includes a lower positioning structure. The lower forming surface is provided with a lower positioning structure on both sides of the circumference. The magnetized magnet has positioning holes on both sides of the circumference that are adapted to the lower positioning structure. The ejection structure has a clearance hole to avoid the lower positioning structure. Alternatively, the ejection structure and the lower positioning structure are integrally connected.

[0014] In a preferred embodiment, the manufacturing equipment further includes an upper positioning structure disposed on the upper forming surface, and the upper positioning structure is adapted to the positioning hole of the magnetized magnet.

[0015] In a preferred embodiment, both the upper positioning structure and the lower positioning structure are positioning posts, and the upper positioning structure and the lower positioning structure are inserted into the positioning holes of the magnetized magnet, either correspondingly or staggeredly.

[0016] Alternatively, the lower positioning structure may be a positioning post, and the upper positioning structure may be a positioning hole. The lower positioning structure passes through the positioning hole of the magnetized magnet and is inserted into the upper positioning structure.

[0017] In a preferred embodiment, the ejection structure includes an inner ring positioning body and a plurality of inter-element positioning bodies. The plurality of inter-element positioning bodies are arranged circumferentially at intervals on the outer periphery of the inner ring positioning body. The inner ring positioning body is located radially inside each of the lower forming surfaces, and the inter-element positioning bodies are located between two adjacent lower forming surfaces.

[0018] In a preferred embodiment, the lower mold further has an outer ring surface connected to the outer periphery of each of the lower forming surfaces, or the upper mold further has an outer ring surface connected to the upper forming surface;

[0019] When the magnetized magnet is positioned on the upper forming surface and the lower forming surface, the outer ring surface is located on the outer periphery of the magnetized magnet, and there is a gap between the outer ring surface and the magnetized magnet.

[0020] In a preferred embodiment, when the magnetized magnet abuts against the upper forming surface and the lower forming surface, the forming cavity includes an inner ring cavity, an outer ring cavity, and an inter-pole cavity. The inner ring cavity is formed on the radially inner side of each magnetized magnet, the inter-pole cavity is formed between two adjacent magnetized magnets, the outer ring cavity is formed between the radially outer side of the magnetized magnet and the outer ring surface, and the inter-pole cavity is connected between the inner ring cavity and the outer ring cavity. The assembly includes an inner ring assembly, an outer ring assembly, and an inter-pole assembly. The inner ring assembly is connected to the radially inner side of the magnetized magnet and is formed within the inner ring cavity. The outer ring assembly is connected to the radially outer side of the magnetized magnet and is formed within the outer ring cavity. The inter-pole assembly is connected between two adjacent magnetized magnets and is formed within the inter-pole cavity.

[0021] When there are gaps between the magnetized magnets and the upper and lower molding surfaces respectively, the molding cavity includes an inner ring cavity, an outer ring cavity, an inter-pole cavity, and an axial cavity. The inner ring cavity is formed on the radially inner side of each magnetized magnet, the inter-pole cavity is formed between two adjacent magnetized magnets, the outer ring cavity is formed between the radially outer side of the magnetized magnet and the outer ring surface, the inter-pole cavity connects the inner ring cavity and the outer ring cavity, and the axial injection cavity is formed between the magnetized magnets and the lower and upper molding surfaces respectively. The assembly includes an inner ring joint, an outer ring joint, an inter-pole joint, and an axial joint. The inner ring joint is connected to the radially inner side of the magnetized magnet and is formed within the inner ring cavity. The outer ring joint is connected to the radially outer side of the magnetized magnet and is formed within the outer ring cavity. The inter-pole joint is connected between two adjacent magnetized magnets and is formed within the inter-pole cavity. The axial joint is provided on both axial sides of the magnetized magnet and is formed within the axial cavity.

[0022] According to another objective of the present invention, the present invention also provides a method for manufacturing an axial magnetic field motor rotor disk, comprising the following steps:

[0023] a. An ejector structure of the rising manufacturing equipment, which protrudes from the lower forming surface of the lower mold, and a magnetic steel limiting groove with the lower forming surface as the bottom is formed between the ejector structure and the lower mold;

[0024] b. Magnetized magnets are arranged in each of the magnet limiting grooves;

[0025] c. The upper and lower molds of the manufacturing equipment are closed, so that the magnetized magnet is positioned between the upper forming surface of the upper mold and the lower forming surface of the lower mold;

[0026] d. A lower ejector structure is formed so that the ejector structure and the lower forming surface are flush, and a forming cavity is formed between the magnetized magnets positioned by the upper forming surface and the lower forming surface;

[0027] e. Place the molding material in the molding cavity and form a composite body with the magnetized magnet to obtain the rotor disk.

[0028] In a preferred embodiment, after step e, the method further includes the following steps:

[0029] The ejector structure is raised to eject the rotor disk from the lower mold, so as to facilitate the removal of the rotor disk.

[0030] In a preferred embodiment, the manufacturing equipment further includes a lower positioning structure, with lower positioning structures respectively provided on both circumferential sides of the lower forming surface. The manufacturing equipment also includes an upper positioning structure, which is disposed on the upper forming surface. Thus, in step c, the lower positioning structure and the upper positioning structure are positioned within the positioning holes on both circumferential sides of the magnetized magnet.

[0031] In a preferred embodiment, slots are formed on the rotor disk that are detached from the upper positioning structure and the lower positioning structure. Furthermore, after step e, the method further includes:

[0032] Fill the slot with an insulating material.

[0033] According to another objective of the present invention, the present invention also provides an axial magnetic field motor rotor disk, comprising:

[0034] Several magnetized magnets;

[0035] A composite body is connected between each of the magnetized magnets, and the magnetized magnets are arranged at circumferential intervals.

[0036] The axial sides of the magnetized magnet are exposed outside the assembly, or the assembly completely encloses the magnetized magnet.

[0037] According to another objective of the present invention, the present invention also provides an axial magnetic field motor rotor assembly, including the rotor disk of the above embodiment. The axial magnetic field motor rotor assembly further includes a rotor shaft, bolts and a washer, the rotor disk being sleeved on the rotor shaft and fixed by the bolts and the washer.

[0038] Compared with existing technologies, this technical solution has the following advantages:

[0039] The ejector structure rises to form a magnet-limiting groove between itself and the lower mold, positioning the magnetized magnet within this groove. Then, the upper and lower molds close, positioning the magnetized magnet between the upper and lower forming surfaces, preventing displacement due to mutual attraction. The ejector structure then descends to form a forming cavity between the magnetized magnets. Molding material can then be placed into this cavity to create a bonded assembly, ensuring product consistency and improving yield. Additionally, the ejector structure can rise to eject the rotor disc from the lower mold, facilitating removal and increasing functionality and manufacturing efficiency.

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the existing rotor structure;

[0042] Figure 2 This is a schematic diagram of the first embodiment of the rotor disk of the axial magnetic field motor according to the present invention;

[0043] Figure 3 This is a schematic diagram of the structure of the magnetized magnet described in this invention;

[0044] Figure 4 This is a schematic diagram of the first embodiment of the rotor assembly described in this invention;

[0045] Figure 5 This is an exploded view of the rotor assembly described in this invention;

[0046] Figures 6 to 11 This is a schematic diagram of the manufacturing process of the manufacturing equipment described in this invention;

[0047] Figure 12 This is a schematic diagram of the structure of the lower mold described in this invention;

[0048] Figure 13 for Figure 12 Enlarged diagram in the image;

[0049] Figure 14This is a schematic diagram of the ejection structure described in this invention;

[0050] Figure 15 This is a schematic diagram of the structure of the lower mold described in this invention;

[0051] Figure 16 This is a schematic diagram of the second embodiment of the rotor disk of the axial magnetic field motor according to the present invention;

[0052] Figure 17 This is an internal schematic diagram of the second embodiment of the axial magnetic field motor rotor disk of the present invention;

[0053] Figure 18 This is a schematic diagram of the second embodiment of the rotor assembly described in this invention.

[0054] In the diagram: 1 Magnet, 2 Cage, 3 Retaining Ring, 100 Magnetized Magnet, 110 Filling Groove, 120 Positioning Hole, 200 Assembly, 201 Slot, 210 Inner Ring Assembly, 220 Outer Ring Assembly, 230 Inter-pole Assembly, 1000 Rotor Disc, 1001 Mounting Hole, 1002 Center Hole, 2000 Rotor Shaft, 2001 Shaft Body, 2002 Stepped Plate, 2003 Threaded Hole, 3000 Pad, 3001 Pad Through Hole, 4000 Bolt, 6000 Forming Cavity, 6001 Inner Ring Cavity, 6002 Outer Ring Cavity, 6003 Inter-pole Cavity, 6100 Upper Mold, 6100a Upper Forming Surface, 6110 Upper Mold core, 6120 upper mold base, 6120a upper mating surface, 6121 guide hole, 6130 upper center boss, 6140 upper mounting boss, 6200 lower mold, 6200a lower forming surface, 6200b outer ring surface, 6200c lower center surface, 6210 lower mold core, 6220 lower mold base, 6220a lower mating surface, 6221 guide post, 6230 lower center boss, 6240 lower mounting boss, 6300 ejection structure, 6300a magnet limiting groove, 6310 inner ring positioning body, 6311 inner ring round hole, 6320 inter-electrode positioning body, 6321 clearance hole, 6400 lower positioning structure, 6500 upper positioning structure. Detailed Implementation

[0055] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0056] First Embodiment

[0057] like Figure 2 As shown, the axial magnetic field motor rotor disk 1000 includes:

[0058] Several magnetized magnets, 100;

[0059] A connector 200 is connected between each of the magnetized magnets 100, and the magnetized magnets 100 are arranged at circumferential intervals, with the axial sides of the magnetized magnets 100 exposed.

[0060] The assembly 200 is manufactured as a single piece by injection molding or other methods, which ensures good consistency of the rotor disc and improves the product qualification rate. At the same time, the assembly 200 is used to limit and fix the magnetized magnet 100, that is, to combine the existing cage and fixing ring into one, reduce the number of parts and assembly steps, simplify the process route, avoid the use of prepreg molding process which would increase material costs, and improve production efficiency.

[0061] refer to Figure 2 The assembly 200 includes an inner ring assembly 210, an outer ring assembly 220, and an inter-pole assembly 230. The inner ring assembly 210 is connected to the radially inner side of the magnetized magnet 100, and the outer ring assembly 220 is connected to the radially outer side of the magnetized magnet 100, so that the magnetized magnet 100 is radially limited between the inner ring assembly 210 and the outer ring assembly 220. The inter-pole assembly 230 is connected between two adjacent magnetized magnets 100, so that the magnetized magnet 100 is circumferentially limited between two adjacent inter-pole assemblies 230. Since the inner ring assembly 210, the outer ring assembly 220, and the inter-pole assembly 230 are integrally formed on the magnetized magnet 100, they play an axial limiting role for the magnetized magnet 100.

[0062] The inner ring joint 210 and the outer ring joint 220 are annular. The inter-pole joint 230 connects the inner ring joint 210 and the outer ring joint 220, and connects two adjacent magnetized magnets 100. Each magnetized magnet 100 is trapezoidal, and its width gradually increases radially from the inside to the outside. Therefore, the width of the inter-pole joint 230 also gradually increases radially from the inside to the outside, meaning it is also trapezoidal. The axial dimensions of the inner ring joint 210, the outer ring joint 220, the inter-pole joint 230, and the magnetized magnet 100 are equal.

[0063] refer to Figure 2 and Figure 3 The magnetized magnet 100 has filling grooves 110 on both sides of its circumference, and the composite body 200 is filled in the filling grooves 110 to increase the bonding ability between the magnetized magnet 100 and the composite body.

[0064] The filling groove 110 penetrates the magnetized magnet 100 radially. The cross-section of the filling groove 110 may be semi-circular, but is not limited to this. Moreover, there may be multiple filling grooves 110.

[0065] Continue to refer to Figure 2 The magnetized magnet 100 has positioning holes 120 on both circumferential sides, and the positioning holes 120 penetrate the magnetized magnet 100 along its axial direction. The positioning holes 120 have a semi-circular cross-section, but are not limited to this. The positioning structure of the manufacturing equipment, in conjunction with the positioning holes 120, positions the magnetized magnet 100 within the manufacturing equipment, ensuring its stable positioning and thus guaranteeing product consistency. Specifically, the magnetized magnet 100 is a magnetic steel, allowing it to be firmly secured within the manufacturing equipment. Then, an assembly 200 encapsulating the magnetized magnet 100 is formed through injection molding or similar processes. (Refer to...) Figure 2 The assembly 200 is wrapped around the outer periphery of each of the magnetized magnets 100, and the axial sides of the magnetized magnets 100 are exposed to form a rotor disk 1000 with a radial dimension much larger than its axial dimension.

[0066] Continue to refer to Figure 3 The number of positioning holes 120 can be two, and the two positioning holes 120 are arranged radially apart along the magnetized magnet 100, and the positioning holes 120 and the filling groove 110 intersect.

[0067] Second Embodiment

[0068] like Figure 16 and Figure 17 As shown, the axial magnetic field motor rotor disk of the second embodiment differs from that of the first embodiment in that the assembly 200 completely encloses each assembly 200, that is, the axial sides of the magnetized magnet 100 are not exposed to the outside of the assembly 200.

[0069] The assembly 200 includes an inner ring assembly 210, an outer ring assembly 220, an inter-pole assembly 230, and an axial assembly 240. The inner ring assembly 210 is connected to the radially inner side of the magnetized magnet 100, and the outer ring assembly 220 is connected to the radially outer side of the magnetized magnet 100, so that the magnetized magnet 100 is radially limited between the inner ring assembly 210 and the outer ring assembly 220. The inter-pole assembly 230 is connected between two adjacent magnetized magnets 100, so that the magnetized magnet 100 is circumferentially limited between two adjacent inter-pole assemblies 230. Axial assemblies 240 can also be connected to both axial sides of the magnetized magnet 100, so that the magnetized magnet 100 is axially limited between two axial assemblies 240. The inner ring assembly 210, the outer ring assembly 220, the inter-pole assembly 230, and the axial assembly 240 are integrally injection molded.

[0070] Third Embodiment

[0071] like Figure 4 and Figure 5 As shown, the axial magnetic field motor rotor assembly includes the rotor disk 1000 of the first or second embodiment described above. The axial magnetic field motor rotor assembly also includes a rotor shaft 2000, bolts 4000 and a pad 3000. The rotor disk 1000 is sleeved on the rotor shaft 2000 and fixed by the bolts 4000 and the pad 3000.

[0072] like Figure 5 As shown, the rotor disk 1000 has a central hole 1002 located at the center of the rotor disk 1000. The rotor shaft 2000 includes a shaft body 2001 and a stepped plate 2002 connected to the shaft body 2001. During assembly, the shaft body 2001 passes through the central hole 1002 of the rotor disk 1000, and the stepped plate 2002 and the pad 3000 are clamped on both axial sides of the rotor disk 1000. Then, the stepped plate 2002, the rotor disk 1000, and the pad 3000 are connected by bolts 4000 to complete the assembly of the rotor assembly. (Refer to...) Figure 4 and Figure 5 .

[0073] Continue to refer to Figure 5 The rotor disk 1000 is also provided with a plurality of mounting holes 1001, which surround the central hole 1002. The mounting holes 1001 are used for the bolts 4000 to pass through. Similarly, the pad 3000 is provided with a pad through hole 3001 for the bolts 4000 to pass through. The stepped plate 2002 is provided with a threaded hole 2003 for the bolts 4000 to be screwed in.

[0074] Fourth embodiment

[0075] like Figures 7 to 15 As shown, the manufacturing equipment for the axial magnetic field motor rotor disk is used to manufacture the rotor disk 1000 of the first embodiment, which has a magnetized magnet 100 and a connecting body 200. The manufacturing equipment includes:

[0076] Upper mold 6100, the upper mold 6100 having an upper forming surface 6100a;

[0077] The lower mold 6200 has a plurality of circumferentially spaced lower forming surfaces 6200a;

[0078] An ejector structure 6300 is disposed between the lower forming surfaces 6200a in a lifting manner. When the ejector structure 6300 protrudes from the lower forming surface 6200a, a magnetic steel limiting groove 6300a with the lower forming surface 6200a as its bottom is formed between the ejector structure 6300 and the lower mold 6200. When the ejector structure 6300 is flush with the lower forming surface 6200a, a forming cavity 6000 is formed between the magnetized magnets 100 positioned by the upper forming surface 6100a and the lower forming surface 6200a. The assembly 200 is formed in the forming cavity 6000, and the assembly 200 and the magnetized magnets 100 form the rotor disk 1000.

[0079] The ejector structure 6300 rises to form a magnet limiting groove 6300a between itself and the lower mold 6200, positioning the magnetized magnet 100 within the magnet limiting groove 6300a. Then, the upper mold 6100 and the lower mold 6200 close to position the magnetized magnet 100 between the upper forming surface 6100a and the lower forming surface 6200a, ensuring that the magnetized magnets 100 do not shift due to mutual attraction. Afterward, the ejector structure 6300 descends to form a molding cavity 6000 between the magnetized magnets 100. At this time, molding material (such as plastic, prepreg, or short fiber resin) can be placed into the molding cavity 6000 to form a composite body 200 with the magnetized magnets 100, ensuring product consistency and effectively improving the product qualification rate. Alternatively, the rotor disk 1000 can be ejected from the lower mold 6200 by rising through the ejector structure 6300, so as to facilitate the removal of the rotor disk 1000, increase its functionality, and improve manufacturing efficiency.

[0080] like Figure 6As shown, the lower mold 6200 includes a lower mold core 6210 and a lower mold base 6220. The lower mold base 6220 has a lower mating surface 6220a. The lower mold core 6210 is disposed on the lower mating surface 6220a, and the lower forming surface 6200a is disposed on the lower mold core 6210.

[0081] like Figure 15 As shown, the upper mold 6100 includes an upper mold core 6110 and an upper mold base 6120. The upper mold base 6120 has an upper mating surface 6120a. The upper mold core 6110 is disposed on the upper mold base 6120, and the upper forming surface 6100a is disposed on the upper mold core 6110.

[0082] The upper mating surface 6120a and the lower mating surface 6220a are aligned to allow for the opening and closing of the upper mold 6100 and the lower mold 6200. (Continue to refer to...) Figure 6 and Figure 15 The lower mating surface 6220a is provided with a guide post 6221, and the upper mating surface 6120a is provided with a guide hole 6121 adapted to the guide post 6221. That is, the guide post 6221 is inserted into the guide hole 6121 so that the upper mold 6100 and the lower mold 6200 move along the axial direction of the guide post 6221 and complete the mold opening and closing.

[0083] like Figure 6 As shown, the lower mold 6200 also has an outer ring surface 6200b, which is connected to the outer periphery of each of the lower forming surfaces 6200a, so that the lower forming surfaces 6200a are recessed relative to the lower mating surface 6220a. At this time, the magnetized magnet 100 positioned on the lower forming surface 6200a has a gap between it and the outer ring surface 6200b, which is used to form the outer ring mating portion 220.

[0084] Of course, the outer ring surface 6200b can be formed on the upper mold 6100, see reference. Figure 15 The upper mold 6100 also has an outer ring surface 6200b, which is connected between the upper forming surface 6100a and the upper mating surface 6120a, so that the upper forming surface 6100a is recessed relative to the upper mating surface 6120a, and at this time the lower forming surface 6200a and the lower mating surface 6220a are flush.

[0085] like Figure 6 and Figure 7The number of lower forming surfaces 6200a and the number of magnetized magnets 100 are equal and correspond one-to-one. The shapes of the lower forming surfaces 6200a and the magnetized magnets 100 are adapted to each other, and the radial dimension of the lower forming surface 6200a is larger than the radial dimension of the magnetized magnets 100, so that a gap can be formed between the magnetized magnets 100 and the outer ring surface 6200b.

[0086] Specifically, the magnetized magnet 100 is trapezoidal, and its width gradually increases radially from the inside to the outside. Similarly, the width of the lower forming surface 6200a gradually increases radially from the inside to the outside, meaning the magnetized magnet 100 is trapezoidal. When the magnetized magnet 100 is positioned on the lower forming surface 6200a, their radially inner edges and circumferential edges are aligned, while the radially outer edge of the lower forming surface 6200a extends beyond the radially outer edge of the magnetized magnet 100, i.e., it connects to the outer ring surface 6200b of the radially outer edge of the lower forming surface 6200a, and there is a gap between it and the magnetized magnet 100.

[0087] like Figures 6 to 9 As shown, the ejector structure 6300 is positioned between the lower forming surfaces 6200a in a lifting manner. (Reference) Figure 14 The ejection structure 6300 includes an inner ring positioning body 6310 and a plurality of inter-element positioning bodies 6320. The plurality of inter-element positioning bodies 6320 are arranged circumferentially at intervals on the outer periphery of the inner ring positioning body 6310. The inner ring positioning body 6310 is located radially inside each of the lower forming surfaces 6200a. The inter-element positioning bodies 6320 are located between two adjacent lower forming surfaces 6200a.

[0088] When the ejector structure 6300 rises and protrudes from the lower forming surface 6200a, the inner ring positioning body 6310, the two adjacent inter-pole positioning bodies 6320, and the outer ring surface 6200b surround the lower forming surface 6200a, forming the magnet limiting groove 6300a. When the radially inner side of the magnetized magnet 100 abuts against the outer periphery of the inner ring positioning body 6310, and the circumferential sides of the magnetized magnet 100 abut against the two adjacent inter-pole positioning bodies 6320, there is a gap between the radially outer side of the magnetized magnet 100 and the outer ring surface 6200b.

[0089] refer to Figure 7The length of the inter-electrode positioning body 6320 can be approximately equal to the length of the lower forming surface 6200a, and the inter-electrode positioning body 6320 is slidably disposed relative to the outer ring surface 6200b. Of course, the length of the inter-electrode positioning body 6320 can be less than the length of the lower forming surface 6200a, but the length of the inter-electrode positioning body 6320 is preferably greater than the radial dimension of the magnetized magnet 100 to ensure the positioning effect of the magnetized magnet 100.

[0090] The manufacturing equipment also includes a power mechanism, which is located inside the lower mold base 6220 and is connected to the ejector structure 6300 for transmission, so as to drive the ejector structure 6300 to rise and fall. The power mechanism can be a motor or a hydraulic cylinder, etc.

[0091] Continue to refer to Figure 7 When the magnetized magnet 100 is positioned within the magnet limiting groove 6300a, the magnetized magnet 100, the ejector structure 6300, and the lower mating surface 6220a are flush. That is, the height of the outer ring surface 6200b, the thickness of the magnetized magnet 100, and the thickness of the ejector structure 6300 are equal. Therefore, the ejector structure 6300 only needs to rise until it is flush with the lower mating surface 6220a to form the magnet limiting groove 6300a with the lower forming surface 6200a as its bottom between the ejector structure 6300 and the lower mold 6200, ensuring the effective positioning of the magnetized magnet 100. Of course, the ejector structure 6300 can be slightly lower than the lower mating surface 6220a.

[0092] refer to Figure 9 When the ejector structure 6300 descends to be flush with the lower forming surface 6200a, the forming cavity 6000 is formed between the magnetized magnets 100. The forming cavity 6000 has the upper surface of the ejector structure 6300 as its bottom surface, the upper forming surface 6100a as its top surface, and the outer contour of the magnetized magnets 100 and the outer ring surface 6200b as its outer contour. The forming cavity 6000 has the same shape as the ejector structure 6300.

[0093] Specifically, the forming cavity 6000 includes an inner ring cavity 6001, an outer ring cavity 6002, and an inter-pole cavity 6003. The inner ring cavity 6001 is formed on the radially inner side of each of the magnetized magnets 100. The inner ring cavity 6001 is used for forming the inner ring joint 210. The inter-pole cavity 6003 is formed between two adjacent magnetized magnets 100. The inter-pole cavity 6003 is used for forming the inter-pole joint 230. The outer ring cavity 6002 is formed between the radially outer side of the magnetized magnet 100 and the outer ring annular surface 6200b. The outer ring cavity 6002 is used for forming the outer ring joint 220. The inter-pole cavity 6003 is connected between the inner ring cavity 6001 and the outer ring cavity 6002.

[0094] like Figure 6 As shown, the lower mold 6200 also has a lower center surface 6200c, the lower forming surface 6200a surrounds the lower center surface 6200c, and there is a gap between the radially inner side of the lower forming surface 6200a and the lower center surface 6200c to accommodate the inner ring positioning body 6310 of the ejection structure 6300. The center of the inner ring positioning body 6310 is provided with an inner ring circular hole 6311 that avoids the lower center surface 6200c. See [reference] Figure 14 .

[0095] refer to Figure 6 and Figure 15 The lower center surface 6200c is provided with a lower center boss 6230 protruding upwards, and the upper forming surface 6100a is provided with an upper center boss 6130 protruding upwards. When the upper mold 6100 and the lower mold 6200 are closed, the lower center boss 6230 and the upper center boss 6130 abut against each other, so that the center hole 1002 is formed at the center of the rotor disk 1000. (Reference) Figure 2 Similarly, the lower center surface 6200c is provided with a plurality of lower mounting bosses 6240, and the upper forming surface 6100a is provided with a plurality of upper mounting bosses 6140. When the upper mold 6100 and the lower mold 6200 are closed, the lower mounting bosses 6240 and the upper mounting bosses 6140 correspond one-to-one and abut against each other to form the mounting holes 1001 of the rotor disk 1000. (Refer to...) Figure 2 .

[0096] like Figure 3 , Figure 14 , Figure 12 and Figure 13As shown, the manufacturing equipment also includes a lower positioning structure 6400. The lower forming surface 6200a is provided with lower positioning structures 6400 on both sides of its circumference. The magnetized magnet 100 is provided with positioning holes 120 on both sides of its circumference that are adapted to the lower positioning structure 6400. The ejection structure 6300 is provided with avoidance holes 6321 that avoid the lower positioning structure 6400.

[0097] Of course, the ejector structure 6300 and the lower positioning structure 6400 can be integrally formed. As long as the lower positioning structure 6400 has sufficient length, the lower positioning structure 6400 will be located in the positioning hole 120 of the magnetized magnet 100 whether the ejector structure 6300 is in an ascending or descending state, thus ensuring the positioning capability of the lower positioning structure 6400 for the magnetized magnet 100.

[0098] The lower positioning structure 6400 includes at least one positioning post. The positioning posts are respectively arranged on both circumferential sides of the lower forming surface 6200a. When the magnetized magnet 100 corresponds to the positioning post through the positioning hole 120 and is arranged on the lower forming surface 6200a, the positioning post is inserted into the positioning hole 120 to position the magnetized magnet 100. When the upper mold 6100 and the lower mold 6200 are closed, and the ejector structure 6300 descends, even if there is a gap between the magnetized magnet 100 and the outer ring surface 6200b, the magnetized magnet 100 will not be displaced under the action of the positioning post. Preferably, two positioning posts are arranged on each circumferential side of the lower forming surface 6200a, and the two positioning posts are radially spaced along the magnetized magnet 100.

[0099] The ejector structure 6300 is provided with a clearance hole 6321 to avoid the lower positioning structure 6400. The clearance hole 6321 is provided on both sides of the inter-pole positioning body 6320 to prevent the lower positioning structure 6400 from affecting the lifting and lowering of the ejector structure 6300.

[0100] like Figure 15 As shown, the manufacturing equipment also includes an upper positioning structure 6500, which is disposed on the upper forming surface 6100a and is adapted to be positioned in the positioning hole 120 of the magnetized magnet 100, thereby enhancing the positioning effect of the magnetized magnet 100 and effectively ensuring the consistency of the manufactured product.

[0101] The upper positioning structure 6500 can correspond one-to-one with the upper positioning structure 6400, or they can be staggered. Alternatively, the upper positioning structure 6500 can be a positioning post or a positioning hole. When the upper positioning structure 6500 is a positioning post, both the upper positioning structure 6500 and the lower positioning structure 6400 can be inserted into the positioning hole 120 of the magnetized magnet 100 simultaneously. When the upper positioning structure 6500 is a positioning hole, the lower positioning structure 6400 passes through the positioning hole 120 of the magnetized magnet 100 and is inserted into the upper positioning structure 6500.

[0102] refer to Figure 2 When the rotor disk 1000 is removed from the manufacturing equipment and the assembly 200 is detached from the upper positioning structure 6500 and the lower positioning structure 6400, a slot 201 is formed on the rotor disk 1000 opposite to the upper positioning structure 6500 and the lower positioning structure 6400. An insulating material can then be filled into the slot 201 to isolate air and prevent the magnetized magnet 100 from rusting. The insulating material can be adhesive. The slot 201 is located between the magnetized magnet 100 and the inter-pole joint 230, and the slot 201 penetrates the rotor disk 1000.

[0103] The upper positioning structure 6500 and the lower positioning structure 6400 cooperate to position the magnetized magnet 100, preventing them from attracting each other and causing displacement. At the same time, the lifting ejection structure 6300 cooperates with the lower mold 6200 to form multiple magnet limiting grooves 6300a for positioning the magnetized magnet 100, further preventing the magnetized magnets 100 from attracting each other and reducing the difficulty of installing the magnetized magnets 100. This simple and reliable function ensures product consistency and improves the product qualification rate.

[0104] At least one of the upper mold 6100, the lower mold 6200, the upper positioning structure 6500, the lower positioning structure 6400, and the ejection structure 6300 is made of a non-magnetic material. This is to prevent it from being magnetic and affecting the positioning effect of the magnetized magnet 100 on the manufacturing equipment. Preferably, all of the upper mold 6100, the lower mold 6200, the upper positioning structure 6500, the lower positioning structure 6400, and the ejection structure 6300 are made of non-magnetic materials.

[0105] The assembly 200 can be injection molded from plastic material. Specifically, after the upper mold 6100 and the lower mold 6200 are closed, the plastic material is injected into the molding cavity 6000. After curing, the plastic material forms the assembly 200 bonded to the magnetized magnet 100. Compared to prepreg compression molding, injection molding offers advantages such as meeting strength requirements while significantly reducing material costs. Alternatively, the assembly 200 can also be molded from prepreg or short-fiber resin material, meaning it can be integrally molded, reducing assembly steps. Therefore, the positioning of the magnetized magnet 100 in the lower mold 6200 and the molding process of the assembly 200 can both be automated.

[0106] In summary, by using the rising ejector structure 6300 to form the magnet limiting groove 6300a between itself and the lower mold 6200, the magnetized magnet 100 is positioned within the magnet limiting groove 6300a. Then, by the closing of the upper mold 6100 and the lower mold 6200, the magnetized magnet 100 is positioned between the upper forming surface 6100a and the lower forming surface 6200a, ensuring that the magnetized magnets 100 will not shift due to mutual attraction. Afterward, by the falling ejector structure 6300, a molding cavity 6000 is formed between the magnetized magnets 100. At this time, molding material (such as plastic, prepreg, or short fiber resin) can be placed into the molding cavity 6000 to form a composite body 200 with the magnetized magnets 100, ensuring product consistency and effectively improving the product qualification rate. Alternatively, the rotor disk 1000 can be ejected from the lower mold 6200 by rising through the ejector structure 6300, so as to facilitate the removal of the rotor disk 1000, increase its functionality, and improve manufacturing efficiency.

[0107] Fifth Embodiment

[0108] The manufacturing equipment of the fifth embodiment is used to manufacture the rotor disk 1000 with magnetized magnet 100 and assembly 200 in the second embodiment. The difference between the fifth and fourth embodiments is that there are gaps between the magnetized magnet 100 and the upper forming surface 6100a and the lower forming surface 6200a respectively.

[0109] The molding cavity 6000 includes an inner ring cavity 6001, an outer ring cavity 6002, an inter-electrode cavity 6003, and an axial cavity. The inner ring cavity 6001 is formed radially inward of each magnetized magnet 100. The inter-electrode cavity 6003 is formed between two adjacent magnetized magnets 100. The outer ring cavity 6002 is formed between the radially outward of each magnetized magnet 100 and the outer ring annular surface 6200b. The inter-electrode cavity 6003 connects the inner ring cavity 6001 and the outer ring cavity 6002. The axial injection cavity is formed between each magnetized magnet 100 and the lower molding surface 6000a and the upper molding surface 6000c, respectively. The assembly 200 includes an inner ring assembly 2. 10. An outer ring joint 220, an inter-pole joint 230, and an axial joint 240. The inner ring joint 210 is connected to the radially inner side of the magnetized magnet 100 and is formed within the inner ring cavity 6001. The outer ring joint 220 is connected to the radially outer side of the magnetized magnet 100 and is formed within the outer ring cavity 6002. The inter-pole joint 230 is connected between two adjacent magnetized magnets 100 and is formed within the inter-pole cavity 6003. The axial joint 240 is provided on both axial sides of the magnetized magnet 100 and is formed within the axial cavity.

[0110] refer to Figure 6 , Figure 13 and Figure 15 As shown, steps may be provided on the upper forming surface 6100a and the lower forming surface 6200a respectively, and the magnetized magnet 100 may abut against the upper forming surface 6100a and the lower forming surface 6200a respectively, so that there are gaps between the magnetized magnet 100 and the upper forming surface 6100a and the lower forming surface 6200a respectively.

[0111] When the ejector structure 6300 has an avoidance hole 6321 to avoid the lower positioning structure 6400 and slides relative to the lower positioning structure 6400, the step can be set on the lower positioning structure 6400 so that the magnetized magnet 100 abuts against the step of the lower positioning structure 6400, thereby creating a gap between the magnetized magnet 100 and the lower forming surface 6200a.

[0112] Sixth Embodiment

[0113] like Figures 6 to 13 As shown, the manufacturing method of the axial magnetic field motor rotor disk includes the following steps:

[0114] a. An ejector structure 6300 of the rising manufacturing equipment, which protrudes from the lower forming surface 6200a of the lower mold 6200, and a magnetic steel limiting groove 6300a with the lower forming surface 620a as the bottom is formed between the ejector structure 6300 and the lower mold 6200.

[0115] b. Magnetized magnets 100 are arranged in each of the magnet limiting grooves 6300a;

[0116] c. The upper mold 6100 and the lower mold 6200 of the manufacturing equipment are closed, so that the magnetized magnet 100 is positioned between the upper forming surface 6100a of the upper mold 6100 and the lower forming surface 6200a of the lower mold 6200.

[0117] d. Lower the ejector structure 6300 so that the ejector structure 6300 and the lower forming surface 6200a are flush, and a forming cavity 6000 is formed between the magnetized magnet 100 positioned by the upper forming surface 6100a and the lower forming surface 6200a.

[0118] e. Place the molding material in the molding cavity 6000 and make the molding material form a composite body 200 that combines with the magnetized magnet 100 to obtain the rotor disk 1000.

[0119] The manufacturing equipment also includes a lower positioning structure 6400. The lower forming surface 6200a has a lower positioning structure 6400 on each of its two circumferential sides. The magnetized magnet 100 has positioning holes 120 on its two circumferential sides that are adapted to the lower positioning structure 6400. The ejection structure 6300 has a clearance hole 6321 that avoids the lower positioning structure 6400. In step b, the magnetized magnet 100 is positioned in the magnet limiting groove 6300a by the cooperation of the lower positioning structure 6400 and the positioning hole.

[0120] The manufacturing equipment also includes an upper positioning structure 6500, which is disposed on the upper forming surface 6100a. In step c, the upper positioning structure 6500 is adapted to be positioned in the positioning hole 120 of the magnetized magnet 100 so that the magnetized magnet 100 is positioned between the upper forming surface 6100a and the lower forming surface 6200a.

[0121] The molding material can be a plastic material. In step e, the molding material is injected into the molding cavity 6000 so that the molding material forms the composite 200 after curing. Then, the mold is opened by the upper mold 6100 and the lower mold 6200 to obtain the rotor disk 1000.

[0122] The assembly 200 can be made of plastic injection molding, that is, the rotor disk is produced using an injection mold, which ensures that the components of the rotor disk have good consistency and improves the product qualification rate. At the same time, the assembly 200 is used to limit and fix the magnetized magnet 100, that is, to combine the existing cage and fixing ring into one, reduce the number of parts and assembly steps, simplify the process route, avoid the use of prepreg molding process which would increase material costs, and improve production efficiency.

[0123] Following step e, the method further includes the following steps:

[0124] The ejector structure 6300 is raised to eject the rotor disk 1000 from the lower mold 6200 so as to facilitate the removal of the rotor disk 1000.

[0125] It can be seen that, in addition to forming the magnet limiting groove 6300a with the lower mold 6200, the ejection structure 6300 can also be used to eject the rotor disk 1000.

[0126] After the rotor disk 1000 is removed from the manufacturing equipment and the assembly 200 is disengaged from the upper positioning structure 6500 and the lower positioning structure 6400, a slot 201 is formed on the rotor disk 1000 that is opposite to the upper positioning structure 6500 and the lower positioning structure 6400. Then, after step e, the method further includes:

[0127] An insulating material is filled into the slot 201 to prevent the magnetized magnet 100 from rusting by isolating it from air. The insulating material can be glue.

[0128] The method for manufacturing the axial magnetic field motor rotor disk can utilize the manufacturing equipment of the third embodiment to manufacture the rotor disk 1000 of the first embodiment, and utilize the manufacturing equipment of the fourth embodiment to manufacture the rotor disk 1000 of the second embodiment.

[0129] The embodiments described above are only used to illustrate the technical ideas and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. The scope of patent application of the present invention should not be limited by these embodiments. That is, any equivalent changes or modifications made in accordance with the spirit disclosed in the present invention still fall within the patent scope of the present invention.

Claims

1. A manufacturing apparatus for an axial magnetic field motor rotor disk, characterized in that, include: Upper mold (6100), the upper mold (6100) having an upper forming surface (6100a); The lower mold (6200) has a plurality of circumferentially spaced lower forming surfaces (6200a). An ejector structure (6300) is disposed between the lower forming surface (6200a) in a lifting manner. When the ejector structure (6300) protrudes from the lower forming surface (6200a), a magnetic steel limiting groove (6300a) with the lower forming surface (6200a) as its bottom is formed between the ejector structure (6300) and the lower mold (6200). When the ejector structure (6300) is flush with the lower forming surface (6200a), a forming cavity (6000) is formed between the magnetized magnets (100) positioned by the upper forming surface (6100a) and the lower forming surface (6200a). A connecting body (200) is formed in the forming cavity (6000), and the connecting body (200) combines with the magnetized magnets (100) to form the rotor disk (1000). The ejection structure (6300) includes an inner ring positioning body (6310) and a plurality of inter-element positioning bodies (6320). The plurality of inter-element positioning bodies (6320) are arranged circumferentially at intervals on the outer periphery of the inner ring positioning body (6310). The inner ring positioning body (6310) is located radially inside each of the lower forming surfaces (6200a). The inter-element positioning bodies (6320) are located between two adjacent lower forming surfaces (6200a).

2. The manufacturing equipment for the axial magnetic field motor rotor disk as described in claim 1, characterized in that, The manufacturing equipment also includes a lower positioning structure (6400), and the lower forming surface (6200a) is provided with a lower positioning structure (6400) on both sides of the circumference. The magnetized magnet (100) is provided with positioning holes (120) on both sides of the circumference that are adapted to the lower positioning structure (6400). The ejector structure (6300) is provided with a clearance hole (6321) to avoid the lower positioning structure (6400), or the ejector structure (6300) and the lower positioning structure (6400) are integrally connected.

3. The manufacturing equipment for the axial magnetic field motor rotor disk as described in claim 2, characterized in that, The manufacturing equipment also includes an upper positioning structure (6500), which is disposed on the upper forming surface (6100a) and is adapted to the positioning hole (120) of the magnetized magnet (100).

4. The manufacturing equipment for the axial magnetic field motor rotor disk as described in claim 3, characterized in that, The upper positioning structure (6500) and the lower positioning structure (6400) are both positioning posts. The upper positioning structure (6500) and the lower positioning structure (6400) are inserted into the positioning holes (120) of the magnetized magnet (100) respectively or staggered. Alternatively, the lower positioning structure (6400) is a positioning post, the upper positioning structure (6500) is a positioning hole, the lower positioning structure (6400) passes through the positioning hole (120) of the magnetized magnet (100) and is inserted into the upper positioning structure (6500).

5. The manufacturing equipment for the axial magnetic field motor rotor disk as described in claim 1, characterized in that, The lower mold (6200) also has an outer ring surface (6200b) connected to the outer periphery of each of the lower forming surfaces (6200a), or the upper mold (6100) also has an outer ring surface (6200b) connected to the upper forming surface (6100a); When the magnetized magnet (100) is positioned on the upper forming surface (6100a) and the lower forming surface (6200a), the outer ring surface (6200b) is located on the outer periphery of the magnetized magnet (100), and there is a gap between the outer ring surface (6200b) and the magnetized magnet (100).

6. The manufacturing equipment for the axial magnetic field motor rotor disk as described in claim 5, characterized in that, When the magnetized magnet (100) abuts against the upper forming surface (6100a) and the lower forming surface (6200a), the forming cavity (6000) includes an inner ring cavity (6001), an outer ring cavity (6002), and an inter-pole cavity (6003). The inner ring cavity (6001) is formed on the radially inner side of each magnetized magnet (100), the inter-pole cavity (6003) is formed between two adjacent magnetized magnets (100), the outer ring cavity (6002) is formed between the radially outer side of the magnetized magnet (100) and the outer ring annular surface (6200b), and the inter-pole cavity (6003) is connected to the inner ring cavity (6001) and the outer ring cavity (6003). Between 002), the assembly (200) includes an inner ring assembly (210), an outer ring assembly (220), and an inter-pole assembly (230). The inner ring assembly (210) is connected to the radially inner side of the magnetized magnet (100) and is formed in the inner ring cavity (6001). The outer ring assembly (220) is connected to the radially outer side of the magnetized magnet (100) and is formed in the outer ring cavity (6002). The inter-pole assembly (230) is connected between two adjacent magnetized magnets (100) and is formed in the inter-pole cavity (6003). When there are gaps between the magnetized magnet (100) and the upper forming surface (6100a) and the lower forming surface (6200a), the forming cavity (6000) includes an inner ring cavity (6001), an outer ring cavity (6002), an interpole cavity (6003), and an axial cavity. The inner ring cavity (6001) is formed on the radially inner side of each magnetized magnet (100). The gaps between two adjacent magnetized magnets (100) are... The interpole cavity (6003) is formed between the inner ring cavity (6001) and the outer ring cavity (6002) between the radial outer side of the magnetized magnet (100) and the outer ring surface (6200b). The interpole cavity (6003) communicates between the inner ring cavity (6001) and the outer ring cavity (6002). The magnetized magnet (100) forms with the upper forming surface (6100a) and the lower forming surface (6200a) respectively. The axial injection cavity includes an inner ring joint (210), an outer ring joint (220), an interpole joint (230), and an axial joint (240). The inner ring joint (210) is connected to the radially inner side of the magnetized magnet (100) and is formed within the inner ring cavity (6001). The outer ring joint (220) is connected to the radially inner side of the magnetized magnet (100). Outwardly, the outer ring joint (220) is formed in the outer ring cavity (6002), the inter-pole joint (230) is connected between two adjacent magnetized magnets (100), the inter-pole joint (230) is formed in the inter-pole cavity (6003), and the axial joint (240) is provided on both axial sides of the magnetized magnet (100), the axial joint (240) is formed in the axial cavity.

7. A method for manufacturing a rotor disk of an axial magnetic field motor, characterized in that, Includes the following steps: a. An ejector structure (6300) of the rising manufacturing equipment, which protrudes from the lower forming surface (6200a) of the lower mold (6200), and a magnetic steel limiting groove (6300a) is formed between the ejector structure (6300) and the lower mold (6200) with the lower forming surface (6200a) as the bottom. b. Magnetized magnets (100) are arranged in each of the magnet limiting grooves (6300a). c. The upper mold (6100) and lower mold (6200) of the manufacturing equipment are closed, so that the magnetized magnet (100) is positioned between the upper forming surface (6100a) of the upper mold (6100) and the lower forming surface (6200a) of the lower mold (6200); d. Lower the ejector structure (6300) so that the ejector structure (6300) and the lower forming surface (6200a) are flush, and a forming cavity (6000) is formed between the magnetized magnet (100) positioned by the upper forming surface (6100a) and the lower forming surface (6200a). e. Place the molding material in the molding cavity (6000) and make the molding material form a composite (200) that combines with the magnetized magnet (100) to obtain the rotor disk (1000).

8. The method for manufacturing the rotor disk of an axial magnetic field motor as described in claim 7, characterized in that, Following step e, the method further includes the following steps: The ejector structure (6300) is raised to eject the rotor disk (1000) from the lower mold (6200) so as to facilitate the removal of the rotor disk (1000).

9. The method for manufacturing the rotor disk of an axial magnetic field motor as described in claim 7, characterized in that, The manufacturing equipment also includes a lower positioning structure (6400), and the lower forming surface (6200a) is provided with a lower positioning structure (6400) on both sides of the circumference. The manufacturing equipment also includes an upper positioning structure (6500), and the upper positioning structure (6500) is provided on the upper forming surface (6100a). In step c, the lower positioning structure (6400) and the upper positioning structure (6500) are positioned in the positioning holes on both sides of the circumference of the magnetized magnet (100).

10. The method for manufacturing the rotor disk of an axial magnetic field motor as described in claim 9, characterized in that, A slot (201) is formed on the rotor disk (1000) that is detached from the upper positioning structure (6500) and the lower positioning structure (6400). Then, after step e, the method further includes: Fill the slot (201) with an insulating element.

Citation Information

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