A rotor disk and a manufacturing device and a manufacturing method thereof

Abstract

The present invention provides a rotor disk and its manufacturing equipment and manufacturing method, wherein the rotor disk includes a silicon steel unit and a support unit, the silicon steel unit includes a plurality of silicon steel blocks arranged circumferentially at intervals, the support unit is integrally formed on the silicon steel unit, and can be wrapped around the periphery of each of the silicon steel blocks so that the axial ends of each of the silicon steel blocks are exposed outside the support unit, which not only exposes the air gap surface of the silicon steel block, but also improves the fixing ability of the support unit to the silicon steel block, and the support unit is integrally formed on the silicon steel unit, and improves the strength, stability and reliability of the rotor disk structure.

Description

Technical Field

[0001] The present invention relates to the field of axial magnetic field motors, and in particular to a rotor disk and a manufacturing device and method thereof. Background Art

[0002] Radial magnetic field motors and axial magnetic field motors are two major branches in the field of motors. Axial magnetic field motors are also called disc motors. They have the characteristics of small size, light weight, short axial dimension and high power density. They can be used in most thin installation occasions, so they are widely used.

[0003] The motor includes a stator and a rotor, and the rotor of the axial magnetic field motor is mainly composed of a bracket and a magnetic steel. Several magnetic steels are arranged circumferentially on the bracket to form a disc-shaped structure as a whole. The fixing ability of the bracket to the magnetic steel will directly affect the operating performance of the motor. If the magnetic steel is separated due to the high-speed rotation of the rotor, the motor cannot be used normally.

[0004] It can be seen that the fixing performance of the magnet is particularly important in the design and manufacture of the rotor. At present, the magnet and the bracket are assembled manually, which may easily lead to the failure to ensure the fixing ability of the magnet due to improper operation. In addition, the bonding ability of the magnet and the bracket is poor, which also affects the stability and reliability of the rotor structure. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a rotor disk which effectively improves the structural stability and reliability and ensures the normal operation of the motor, as well as a manufacturing device and a manufacturing method having the rotor disk.

[0006] According to one purpose of the present invention, the present invention provides a rotor disk, including a silicon steel unit and a support unit, wherein the silicon steel unit includes a plurality of silicon steel blocks arranged circumferentially at intervals, and the support unit is integrally formed on the silicon steel unit and can be wrapped around the periphery of each of the silicon steel blocks so that the axial ends of each of the silicon steel blocks are exposed.

[0007] As a preferred embodiment, the silicon steel unit also includes connecting ribs, and the connecting ribs are connected between any two adjacent silicon steel blocks to separate the two adjacent silicon steel blocks into slots arranged on both axial sides of the silicon steel blocks, and the support unit is embedded in the slots.

[0008] As a preferred embodiment, the support unit includes a plurality of laminated sheets, and the plurality of laminated sheets are respectively laminated in the slots on both axial sides of the silicon steel block.

[0009] As a preferred embodiment, the stack includes an inner ring portion and a plurality of snap-fit ​​portions, wherein the plurality of snap-fit ​​portions are circumferentially spaced apart at the outer edge of the inner ring portion, the snap-fit ​​portions are embedded in the slots and correspondingly wrapped around the side peripheries of the silicon steel blocks, and the inner ring portion correspondingly wraps around the inner peripheries of each of the silicon steel blocks.

[0010] As a preferred embodiment, the laminate further includes an outer ring portion, the inner ring portion and the outer ring portion are arranged from inside to outside, and the clamping portion is connected between the inner ring portion and the outer ring portion, and the outer ring portion is correspondingly wrapped around the outer periphery of the silicon steel block.

[0011] As a preferred embodiment, the support unit further includes a ring body, and the ring body is wrapped around the outer periphery of each silicon steel block.

[0012] As a preferred embodiment, the support unit includes an injection molded body, and the injection molded body is injection molded on the periphery of each silicon steel block.

[0013] According to another object of the present invention, the present invention also provides a manufacturing device for a rotor disk, comprising two mold platens, which are combined to form a molding space for accommodating a silicon steel unit and a support unit, wherein the silicon steel unit comprises a plurality of silicon steel blocks arranged at intervals around the periphery, and the axial ends of the silicon steel blocks are respectively engaged with the two mold platens, and the support unit is filled in the molding space and wrapped around the periphery of each silicon steel block so that the support unit is integrally molded on the silicon steel unit.

[0014] As a preferred embodiment, the mold pressing plate has a clamping surface, and the clamping surface is provided with a plurality of positioning holes arranged at circumferential intervals. The positioning holes of the two mold pressing plates correspond one to one to clamp the axial ends of the silicon steel block.

[0015] As a preferred embodiment, it also includes an intermediate mold, which is provided with a sleeve hole. When the intermediate mold is clamped between the two mold pressure plates, the sleeve side walls are respectively connected to the edges of the engaging surfaces of the two mold pressure plates to form the molding space inside the sleeve hole.

[0016] As a preferred embodiment, the mold pressing plate is provided with a cavity, the bottom of the cavity is formed by the clamping surface, and the cavities of the two mold pressing plates are connected to form the molding space.

[0017] As a preferred embodiment, an injection hole connected to the molding space is provided on the mold pressing plate.

[0018] As a preferred embodiment, it also includes an intermediate column, which can be arranged in the molding space and respectively connects the center positions of the two mold pressure plate clamping surfaces to form a hole in the center of the support unit.

[0019] According to another object of the present invention, the present invention also provides a method for manufacturing a rotor disk, comprising the following steps:

[0020] S1, providing a silicon steel unit, wherein the silicon steel unit comprises a plurality of silicon steel blocks arranged at intervals in a circumferential manner;

[0021] S2, integrally forming a support unit on the silicon steel unit, wherein the support unit is wrapped around the periphery of each silicon steel block, and both axial ends of each silicon steel block are exposed.

[0022] As a preferred embodiment, the silicon steel unit further includes connecting ribs, and any two adjacent silicon steel blocks are connected with the connecting ribs to separate the two adjacent silicon steel blocks into slots arranged on both axial sides of the silicon steel blocks, and then the step S1 includes: rolling the strip silicon steel sheet after punching and shearing to form an integrally connected silicon steel block and connecting ribs.

[0023] As a preferred embodiment, the strip-shaped silicon steel sheet after punching and shearing has a plurality of groups of slot portions arranged at intervals along the length direction, and a block sheet portion for rolling to form a silicon steel block is defined between two adjacent groups of the slot portions. The number of the slot portions in each group is two, and they are relatively arranged on both sides of the width direction of the strip-shaped silicon steel sheet, and a rib sheet portion for rolling to form a connecting rib is defined between the two slot portions in each group.

[0024] As a preferred embodiment, the support unit includes a plurality of laminated sheets, and the step S2 includes:

[0025] S21, stacking the multiple layers of the laminated sheets in the slots on both sides of the silicon steel block in the axial direction;

[0026] S23, placing the entire silicon steel unit after laminating the stacked sheets in a manufacturing device, and forming a molding space by closing the mold of the manufacturing device, so that the stacked sheets are hot-pressed in the molding space.

[0027] As a preferred embodiment, the step S21 and the step S23 further include:

[0028] S22, wrapping a ring body around the outer periphery of each of the silicon steel blocks.

[0029] As a preferred embodiment, the support unit includes an injection molded body, and then the step S2 includes:

[0030] S21, placing the silicon steel unit in a molding space of a manufacturing device;

[0031] S22, injecting molding into the molding space to form the supporting unit.

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

[0033] The support unit is arranged along the contour of the air gap surface of the silicon steel block and wrapped around the periphery of the silicon steel block, which not only exposes the air gap surface of the silicon steel block, but also improves the fixing ability of the support unit to the silicon steel block. In addition, the support unit is integrally formed on the silicon steel unit, which further improves the bonding ability between the support unit and the silicon steel block, and improves the strength, stability and reliability of the rotor disk structure. It prevents the silicon steel block from detaching due to high-speed rotation of the rotor disk. The support unit can be formed by injection molding or lamination hot pressing, and can be processed quickly and easily using manufacturing equipment, so that the support unit can be integrally formed on the silicon steel unit and can be wrapped around the periphery of each silicon steel block. It not only reduces the manufacturing cost and working hours of the motor, but also reduces the excessive cumulative tolerances in the assembly process, ensures the key dimensions, thereby ensuring the strength of the motor rotor, and improving the stability and reliability of the rotor.

[0034] The present invention is further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic structural diagram of the rotor disk of the present invention;

[0036] Figure 2 This is a schematic diagram of the coordination between the silicon steel unit and the support unit of the present invention;

[0037] Figure 3 It is a structural schematic diagram of the silicon steel unit of the present invention;

[0038] Figure 4 It is a schematic diagram of the rolling of the silicon steel unit of the present invention;

[0039] Figure 5 It is a structural schematic diagram of the first embodiment of the laminate of the present invention;

[0040] Figure 6 It is a structural schematic diagram of a second embodiment of the laminate of the present invention;

[0041] Figure 7 It is a schematic diagram of the coordination of the ring body and the silicon steel unit of the present invention;

[0042] Figure 8 It is a structural schematic diagram of a first embodiment of the manufacturing equipment of the present invention;

[0043] Fig. 9 A schematic diagram of mold closing of a first embodiment of the manufacturing equipment of the present invention;

[0044] Fig.10It is a structural schematic diagram of a mold pressing plate in the first embodiment of the manufacturing equipment of the present invention;

[0045] Fig.11 It is a structural schematic diagram of a second embodiment of the manufacturing equipment of the present invention;

[0046] Fig.12 It is a structural schematic diagram of a third embodiment of the manufacturing equipment of the present invention;

[0047] Fig.13 It is a schematic structural diagram of the fourth embodiment of the manufacturing equipment of the present invention. DETAILED DESCRIPTION

[0048] 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.

[0049] like Figure 1 As shown, the rotor disk 100 includes a silicon steel unit 110 and a support unit 120. The silicon steel unit 110 includes a plurality of silicon steel blocks 111 arranged circumferentially at intervals. The support unit 120 is integrally formed on the silicon steel unit 110 and can be wrapped around the periphery of each of the silicon steel blocks 111 so that the axial ends of each of the silicon steel blocks 111 are exposed.

[0050] The two axial ends of the silicon steel block 111 are flush with each other and form an air gap surface with the rotor air gap, and the support unit 120 follows the air gap surface contour of the silicon steel block 111 and wraps around the periphery of the silicon steel block 111, which not only exposes the air gap surface of the silicon steel block 111, but also improves the fixing ability of the support unit 120 to the silicon steel block 111, and the support unit 120 is integrally formed on the silicon steel unit 110, further improving the bonding ability of the support unit 120 and the silicon steel block 111, and improving the strength, stability and reliability of the rotor disk 100 structure. Prevent the silicon steel block 111 from detaching when the rotor disk 100 rotates at high speed.

[0051] Further explanation. Since the support unit 120 is wrapped around the periphery of the silicon steel block 111, the silicon steel block 111 can be prevented from moving in the radial and circumferential directions, and since the support unit 120 is integrally formed with the silicon steel unit 110, the silicon steel block 111 can be prevented from moving in the axial direction, thereby ensuring the ability of the support unit 120 to support the silicon steel block 111. Furthermore, the axial dimension of the support unit 120 can be smaller than the axial dimension of the silicon steel block 111, so that the axial ends of the silicon steel block 111 can be exposed outside the support unit 120.

[0052] The silicon steel block 111 of the silicon steel unit 110 may be a split structure or an integrally formed structure, which is described below through two embodiments:

[0053] The first embodiment of the silicon steel unit 110:

[0054] like Fig.13 As shown, each silicon steel block 111 is a split structure, and the air gap surface profile of each silicon steel block 111 may be trapezoidal, wherein the trapezoidal upper bottom of the silicon steel block 111 is concave, and the trapezoidal lower bottom of the silicon steel block 111 is convex.

[0055] The silicon steel block 111 can be formed by pressing soft magnetic powder or stacking silicon steel sheets to form corresponding rotor poles, and the corresponding number can be selected according to the number of motor poles.

[0056] refer to Figure 3 The periphery of the silicon steel block 111 includes an inner periphery 1111, an outer periphery 1113 and two side peripheries 1112, and the two side peripheries 1112 are respectively connected to the inner periphery 1111 and the two sides of the outer periphery 1113 to surround the periphery of the silicon steel block 111 of the corresponding shape. When the air gap surface profile of the silicon steel block 111 is trapezoidal, the inner periphery 1111 corresponds to the upper base of the trapezoid, the outer periphery 1113 corresponds to the lower base of the trapezoid, and the side peripheries 1112 correspond to the two waists of the trapezoid. In addition, the inner periphery 1111 is a concave surface, and the outer periphery 1113 is a convex surface.

[0057] The second embodiment of the silicon steel unit 110:

[0058] like Figure 3 As shown, the second embodiment of the silicon steel unit 110 is different from the first embodiment in that the silicon steel unit 110 also includes a connecting rib 112, wherein the connecting rib 112 is connected between any two adjacent silicon steel blocks 111 to separate the two adjacent silicon steel blocks 111 into slots 113 arranged on both axial sides of the silicon steel blocks 111, and the support unit 120 is embedded in the slot 113.

[0059] The connecting ribs 112 can be integrally formed with the silicon steel blocks 111, for example, by winding them in a rolling manner. This can not only improve the forming efficiency of the silicon steel units 110, but also facilitate the overall transportation of the silicon steel blocks 111, for example, placing the entirety of the silicon steel blocks 111 in the manufacturing equipment 200 to be combined with the support unit 120. In addition, a slot 113 combined with the support unit 120 can be formed, thereby increasing the contact area between the two and improving the fixing ability of the support unit 120 to the silicon steel blocks 111.

[0060] Specifically, the inner edge of the connecting rib 112 is flush with the inner periphery 1111 of the silicon steel block 111, and both are concave. The outer edge of the connecting rib 112 is flush with the outer periphery 1113 of the silicon steel block 111, and both are convex, so that the silicon steel unit 110 forms a ring structure as a whole. And each connecting rib 112 can be located in the same plane, specifically located in the middle position of the axial direction of the silicon steel block 111.

[0061] like Figure 1 and Figure 2 As shown, the support unit 120 is an annular flat structure, and a hole 123 is opened in the center of the support unit 120 for assembling the rotating shaft. In addition, the support unit 120 can be laminated or injection molded by lamination 121, and is described in detail through the following three embodiments:

[0062] The first embodiment of the support unit 120:

[0063] The support unit 120 includes an injection molded body, which is injection molded on the periphery of each silicon steel block 111. The injection molded body can be encapsulated with materials such as epoxy resin, PPS, PTFE, and PEEK.

[0064] The second embodiment of the support unit 120:

[0065] like Figure 2 As shown, the support unit 120 includes a plurality of laminates 121 , wherein the laminates 121 are stacked in the axial direction of the silicon steel block 111 , and the plurality of laminates 121 are respectively stacked in the slots 113 on both sides of the axial direction of the silicon steel block 111 .

[0066] The laminate 121 may be made of non-metallic material, such as epoxy resin fiber material.

[0067] Further, the laminate 121 includes an inner ring portion 1211 and a plurality of engaging portions 1212, wherein the plurality of engaging portions 1212 are arranged at intervals on the outer edge of the inner ring portion 1211, the engaging portions 1212 are embedded in the slot 113, and are correspondingly wrapped around the side periphery 1112 of the silicon steel block 111, and the inner ring portion 1211 is correspondingly wrapped around the inner periphery 1111 of each silicon steel block 111, Figure 6 ,

[0068] Furthermore, the support unit 120 further includes a ring body 122, and the ring body 122 is wrapped around the outer periphery 1113 of each silicon steel block 111. Figure 7 , so that the periphery of the silicon steel block 111 is wrapped. The ring body 122 can be formed by winding fiber lines or the like.

[0069] The third embodiment of the support unit 120:

[0070] like Figure 5 As shown, the third embodiment of the support unit 120 is different from the second embodiment in that the stack 121 also includes an outer ring portion 1213, the inner ring portion 1211 and the outer ring portion 1213 are arranged from inside to outside, and the locking portion 1212 is connected between the inner ring portion 1211 and the outer ring portion 1213, and the outer ring portion 1213 is correspondingly wrapped around the outer periphery 1113 of the silicon steel block 111.

[0071] In addition, the ring body 122 may be externally mounted on the outer ring portion 1213 to further enhance the fixing capability of the support unit 120 to the silicon steel block 111 .

[0072] The first embodiment of the support unit 120 is injection molding, which is applicable to the split structure of the first embodiment of the silicon steel unit 110 and the integrated structure of the second embodiment. The stacking method of the second and third embodiments of the support unit 120 is mainly applicable to the integrated structure of the second embodiment of the silicon steel unit 110, but can also be applied to the split structure of the first embodiment of the silicon steel unit 110, for example, a plurality of silicon steel blocks 111 are arranged in a ring-shaped interval, and the stacking sheet 121 is stacked between two adjacent silicon steel blocks 111 to wrap the periphery of the silicon steel block 111.

[0073] In summary, the support unit 120 follows the contour of the air gap surface of the silicon steel block 111 and wraps around the periphery of the silicon steel block 111, which not only exposes the air gap surface of the silicon steel block 111, but also improves the fixing ability of the support unit 120 to the silicon steel block 111. In addition, the support unit 120 is integrally formed on the silicon steel unit 110, which further improves the bonding ability of the support unit 120 and the silicon steel block 111, and improves the strength, stability and reliability of the rotor disk 100 structure. It prevents the silicon steel block 111 from detaching when the rotor disk 100 rotates at high speed.

[0074] like Figures 8 to 13 As shown, the manufacturing equipment 200 of the rotor disk includes two mold platens 210. The two mold platens 210 are molded together to form a molding space 2000 for accommodating the silicon steel unit 110 and the support unit 120. The silicon steel unit 110 includes a plurality of silicon steel blocks 111 arranged at intervals around the periphery. The axial ends of the silicon steel blocks 111 are respectively engaged with the two mold platens 210. The support unit 120 is filled in the molding space 2000 and wrapped around the periphery of each silicon steel block 111, so that the support unit 120 is integrally formed on the silicon steel unit 110.

[0075] The silicon steel unit 110 and the support unit 120 are integrally formed in the forming space 2000, which reduces the motor manufacturing cost and working hours, avoids excessive cumulative tolerances caused by improper operation of manual assembly, ensures the consistency of key dimensions and sizes, and thus improves the strength of the rotor disk, as well as the stability and reliability of the structure.

[0076] like Figure 8 and Fig.10 The mold platen 210 has a clamping surface 211, and the clamping surface 211 is provided with a plurality of circumferentially spaced positioning holes 2111, and the positioning holes 2111 of the two mold platens 210 correspond to each other one by one, so as to clamp the axial ends of the silicon steel block 111. When the two mold platens 210 are molded, the clamping surfaces 211 of the two mold platens 210 are parallel to shape the flatness of the two end surfaces of the molded silicon steel disk 100.

[0077] The shape of the positioning hole 2111 is consistent with the peripheral shape of the silicon steel block 111. Since the axial end of the silicon steel block 111 is engaged in the positioning hole 2111, the support unit 120 can avoid the axial ends of the silicon steel block 111 to be formed between the engaging surfaces 211 of the two mold pressing plates 210, thereby exposing the axial ends of the silicon steel block 111. It can be seen that the positioning hole 2111 not only plays a role in positioning the silicon steel block 111, but also prevents the support unit 120 from wrapping the axial ends of the silicon steel block 111.

[0078] It should be noted that the depth of the positioning hole 2111 determines the exposed positions of the two axial ends of the silicon steel block 111. Taking the integrated structure of the second embodiment of the silicon steel unit 110 as an example, refer to Fig.12 There is a gap between the connecting rib 112 and the engaging surface 211 to accommodate the injection molded body or the laminate 121.

[0079] The manufacturing device 200 may have the following different structures corresponding to different molding methods of the support unit 120:

[0080] The first embodiment of the manufacturing equipment 200:

[0081] like Fig.12 As shown, the mold platen 210 is provided with an injection hole 212 connected to the molding space 2000, through which injection molding can be performed into the molding space 2000 to form the injection-molded support unit 120. Of course, the injection hole 212 can be used as an exhaust hole.

[0082] The number of the injection holes 212 can be multiple, and they are arranged corresponding to the gap between two adjacent silicon steel blocks 111. For example, the injection holes 212 are arranged corresponding to the slots 113 of the silicon steel units 110. Figure 3 .

[0083] like Fig.12 As shown, the manufacturing equipment 200 further includes an intermediate column 230, which can be disposed in the molding space 2000 and respectively connected to the center positions of the engaging surfaces 211 of the two mold pressing plates 210 to form a hole 123 at the center of the support unit 120. The intermediate column 230 can be integrally connected to a mold pressing plate 210, and when the two mold pressing plates 210 are molded, the intermediate column 230 is located at the center position of the engaging surfaces 211 of the two mold pressing plates 210.

[0084] Continue to refer Fig.10 and Fig.12 The mold platen 210 is provided with a cavity 2100, the bottom of the cavity 2100 is formed by the engaging surface 211, and the cavities 2100 of the two mold platens 210 are connected to form the molding space 2000. The shape of the support unit 120 is determined by the molding space 2000, wherein the support unit 120 is an annular flat structure.

[0085] It should be noted that the first embodiment of the manufacturing equipment 200 is applicable to the split structure of the first embodiment of the silicon steel unit 110 and the integrated structure of the second embodiment.

[0086] The second embodiment of the manufacturing equipment 200:

[0087] The second embodiment of the manufacturing device 200 is different from the first embodiment in that the manufacturing device 200 further includes an intermediate mold 220, and the intermediate mold 220 is provided with a sleeve hole 221. When the intermediate mold 220 is molded between the two mold pressing plates 210, the side walls of the sleeve hole 221 are respectively connected to the edges of the engaging surfaces 211 of the two mold pressing plates 210, so that the molding space 2000 is formed inside the sleeve hole 221. Fig.11 .

[0088] Compared with the first embodiment of the manufacturing device 200, there is no need to groove the mold platen 210 to form the cavity 2100. It is sufficient to process the positioning hole 2111 with a shallow depth, thereby reducing the processing difficulty.

[0089] The second embodiment of the manufacturing equipment 200 is also applicable to the split structure of the first embodiment of the silicon steel unit 110 and the integrated structure of the second embodiment.

[0090] The third embodiment of the manufacturing equipment 200:

[0091] like Figure 8 and Fig. 9 As shown, the third embodiment of the manufacturing device 200 is different from the first embodiment in that the injection hole 212 for injection molding is omitted to laminate the laminate 121 to form the support unit 120 .

[0092] The fourth embodiment of the manufacturing equipment 200:

[0093] like Fig.11 As shown, the fourth embodiment of the manufacturing device 200 is different from the second embodiment in that the injection hole 212 for injection molding is omitted to laminate the laminate 121 to form the support unit 120 .

[0094] For the third and fourth embodiments of the manufacturing apparatus 200 , the manufacturing apparatus 200 may further include a heating module to fix the laminate 121 under high temperature and pressure to form the support unit 120 .

[0095] In summary, the silicon steel unit 110 and the support unit 120 are integrally formed in the molding space 2000, which reduces the motor manufacturing cost and working hours, avoids excessive cumulative tolerances caused by improper operation of manual assembly, ensures the consistency of key dimensions and sizes, and thus improves the strength of the rotor disk, as well as the stability and reliability of the structure.

[0096] refer to Figure 1 , the manufacturing method of the rotor disk comprises the following steps:

[0097] S1, providing a silicon steel unit 110, wherein the silicon steel unit 110 comprises a plurality of silicon steel blocks 111 arranged circumferentially at intervals;

[0098] S2, integrally forming the support unit 120 on the silicon steel unit 110, wherein the support unit 120 is wrapped around the periphery of each silicon steel block 111, and both axial ends of each silicon steel block 111 are exposed.

[0099] The first embodiment of the manufacturing method:

[0100] The first embodiment of the manufacturing method is to perform injection molding on the silicon steel unit 110 of the split structure to form the support unit 120 of the injection molded body. Fig.12 and Fig.13 As shown, the support unit 120 includes an injection molded body, and then the step S2 includes:

[0101] S21, placing the silicon steel unit 110 in a molding space 2000 of a manufacturing device 200;

[0102] S22 , injecting molding into the molding space 2000 to form the supporting unit 120 .

[0103] The manufacturing equipment 200 includes two mold platens 210 and an intermediate column 230. The step S21 includes respectively engaging the axial ends of the plurality of silicon steel blocks 111 in the relative positioning holes 2111 of the two mold platens 210, and combining the two mold platens 210 to form the molding space 2000, wherein the intermediate column 230 can be arranged in the molding space 2000 and respectively connected to the center positions of the engaging surfaces 211 of the two mold platens 210.

[0104] S22 includes injecting into the molding space 2000 through the injection hole 212 on the mold plate 210 to form the support unit 120 , wherein the center of the support unit 120 is acted upon by the middle column 230 to form the hole 123 .

[0105] The manufacturing equipment 200 may further include an intermediate mold 220, wherein the intermediate mold 220 is provided with a sleeve hole 221. When the intermediate mold 220 is molded between the two mold pressing plates 210, the side walls of the sleeve hole 221 are respectively connected to the edges of the engaging surfaces 211 of the two mold pressing plates 210, so that the molding space 2000 is formed inside the sleeve hole 221. Fig.11 .

[0106] In addition, after step S2, the manufacturing equipment 200 is demoulded to remove the integrally formed silicon steel disk 100, and then the hole 123 of the support unit 120 is processed to a required assembly size so as to be able to correspond to the installation of the rotating shaft.

[0107] The second embodiment of the manufacturing method:

[0108] like Fig.12 As shown, the second embodiment of the manufacturing method is to perform injection molding on the silicon steel unit 110 of the integrally formed structure to form a support unit 120 of the injection molded body. The difference from the first embodiment is that the silicon steel unit 110 also includes a connecting rib 112, and any two adjacent silicon steel blocks 111 are connected to the connecting rib 112 to separate the two adjacent silicon steel blocks 111 into slots 113 disposed on both sides of the axial direction of the silicon steel block 111, and then the step S1 includes: rolling the strip silicon steel sheet 1100 after punching and shearing to form an integrally connected silicon steel block 111 and connecting rib 112.

[0109] Specifically, the strip-shaped silicon steel sheet 1100 after punching and shearing has a plurality of groups of slot portions 1103 arranged at intervals along the length direction, and a block sheet portion 1101 for rolling to form a silicon steel block 111 is defined between two adjacent groups of the slot portions 1103. The number of the slot portions 1103 in each group is two, and they are relatively arranged on both sides of the width direction of the strip-shaped silicon steel sheet 1100. A rib sheet portion 1103 for rolling to form a connecting rib 113 is defined between the two slot portions 1103 in each group. Figure 3 and Figure 4 .

[0110] The third embodiment of the manufacturing method:

[0111] like Figure 1 , Figure 2 , Figure 8 and Fig. 9 As shown, the third embodiment of the manufacturing method is to stack the silicon steel units 110 of the integrally formed structure to form a laminated support unit 120 .

[0112] The support unit 120 includes a multi-layer laminate 121, and the step S2 includes:

[0113] S21, stacking the multiple layers of the laminated sheets 121 in the slots 113 on both sides of the silicon steel block 111 in the axial direction;

[0114] S23, placing the entire silicon steel unit 110 after laminating the laminations 121 in the manufacturing equipment 200, and forming a molding space 2000 by closing the mold of the manufacturing equipment 200, so that the laminations 121 are hot pressed in the molding space 2000.

[0115] The manufacturing equipment 200 includes two mold platens 210 and an intermediate column 230. The step S23 includes respectively engaging the axial ends of the plurality of silicon steel blocks 111 in the relative positioning holes 2111 of the two mold platens 210, and combining the two mold platens 210 to form the molding space 2000, so that the laminate 121 is stacked and shaped in the molding space 2000, wherein the intermediate column 230 can be arranged in the molding space 2000, and respectively connected to the center positions of the engaging surfaces 211 of the two mold platens 210, so as to form a hole 123 in the center of the support unit 120.

[0116] The manufacturing equipment 200 may further include an intermediate mold 220, wherein the intermediate mold 220 is provided with a sleeve hole 221. When the intermediate mold 220 is molded between the two mold pressing plates 210, the side walls of the sleeve hole 221 are respectively connected to the edges of the engaging surfaces 211 of the two mold pressing plates 210, so that the molding space 2000 is formed inside the sleeve hole 221. Fig.11 .

[0117] like Figure 5 and Figure 6 As shown, the laminate 121 may have or not have the outer ring portion 1213. When the laminate 121 does not have the outer ring portion 1213, the steps between step S21 and step S23 further include:

[0118] S22 , wrapping the ring body 122 around the outer periphery of each silicon steel block 111 to ensure that the supporting unit 120 can wrap around the periphery of each silicon steel block 111 .

[0119] When the laminate 121 has the outer ring portion 1213 , the ring body 122 may also be disposed outside the outer ring portion 1213 to further enhance the fixing capability of the silicon steel block 111 .

[0120] In summary, the support unit 120 can be formed by injection molding or lamination hot pressing, and can be processed quickly and easily by using the manufacturing equipment 200, so that the support unit 120 can be integrally formed on the silicon steel unit and can be wrapped around the periphery of each silicon steel block 111. This not only reduces the motor manufacturing cost and working hours, but also reduces excessive cumulative tolerances in the assembly process, ensures key dimensions, thereby ensuring the strength of the motor rotor, and improving the stability and reliability of the rotor.

[0121] 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 contents of the present invention and implement them 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 rotor disk (100), characterized in that: The invention comprises a silicon steel unit (110) and a support unit (120), wherein the silicon steel unit (110) comprises a plurality of silicon steel blocks (111) arranged at intervals in a circumferential manner, and the support unit (120) is integrally formed on the silicon steel unit (110) and can be wrapped around the periphery of each silicon steel block (111) so that the axial ends of each silicon steel block (111) are exposed; The silicon steel unit (110) further comprises a connecting rib (112), and any two adjacent silicon steel blocks (111) are connected to the connecting rib (112) so as to separate the two adjacent silicon steel blocks (111) into slots (113) respectively arranged on two axial sides of the silicon steel blocks (111), and the supporting unit (120) is embedded in the slots (113).

2. The rotor disk (100) according to claim 1, characterized in that The support unit (120) comprises a plurality of laminated sheets (121), and the plurality of laminated sheets (121) are respectively laminated in the clamping grooves (113) on both axial sides of the silicon steel block (111).

3. The rotor disk (100) according to claim 2, characterized in that The laminate (121) comprises an inner ring portion (1211) and a plurality of engaging portions (1212), wherein the plurality of engaging portions (1212) are circumferentially spaced and arranged at an outer edge of the inner ring portion (1211), the engaging portions (1212) are embedded in the engaging groove (113) and correspondingly wrapped around the side periphery (1112) of the silicon steel block (111), and the inner ring portion (1211) is correspondingly wrapped around the inner periphery (1111) of each silicon steel block (111).

4. The rotor disk (100) according to claim 3, characterized in that The lamination (121) further includes an outer ring portion (1213), the inner ring portion (1211) and the outer ring portion (1213) are arranged from inside to outside, and the engaging portion (1212) is connected between the inner ring portion (1211) and the outer ring portion (1213), and the outer ring portion (1213) is correspondingly wrapped around the outer periphery (1113) of the silicon steel block (111).

5. The rotor disk (100) according to claim 1, characterized in that The support unit (120) further comprises a ring body (122), wherein the ring body (122) is wrapped around the outer periphery (1113) of each silicon steel block (111).

6. The rotor disk (100) according to claim 1, characterized in that The support unit (120) comprises an injection molded body, and the injection molded body is injection molded on the periphery of each silicon steel block (111).

7. A rotor disk manufacturing device (200), characterized in that: The invention comprises two mold pressing plates (210), wherein the two mold pressing plates (210) are combined to form a molding space (2000) for accommodating a silicon steel unit (110) and a support unit (120), wherein the silicon steel unit (110) comprises a plurality of silicon steel blocks (111) arranged at intervals around the periphery, and a connecting rib (112) connected between two adjacent silicon steel blocks (111), and the two axial ends of the silicon steel block (111) are respectively engaged with the two mold pressing plates (210), and the support unit (120) is filled in the molding space (2000) and wrapped around the periphery of each silicon steel block (111), and the connecting rib (112) is wrapped, so that the support unit (120) is integrally molded on the silicon steel unit (110).

8. The manufacturing device (200) according to claim 7, characterized in that: The mold pressing plate (210) has a clamping surface (211), and the clamping surface (211) is provided with a plurality of positioning holes (2111) arranged at intervals in a circumference. The positioning holes (2111) of the two mold pressing plates (210) correspond one to one to clamp the axial ends of the silicon steel block (111).

9. The manufacturing device (200) according to claim 8, characterized in that The invention also comprises an intermediate mold (220), wherein the intermediate mold (220) is provided with a sleeve hole (221). When the intermediate mold (220) is clamped between the two mold pressing plates (210), the side walls of the sleeve hole (221) are respectively connected to the edges of the engaging surfaces (211) of the two mold pressing plates (210), so that the molding space (2000) is formed inside the sleeve hole (221).

10. The manufacturing device (200) according to claim 8, characterized in that The mold pressing plate (210) is provided with a cavity (2100), the bottom of the cavity (2100) is formed by the engaging surface (211), and the cavities (2100) of the two mold pressing plates (210) are connected to form the molding space (2000).

11. The manufacturing device (200) according to claim 7, characterized in that: The mold pressing plate (210) is provided with an injection hole (212) communicating with the molding space (2000).

12. The manufacturing device (200) according to claim 7, characterized in that: It also includes an intermediate column (230), which can be arranged in the molding space (2000) and is respectively connected to the center positions of the engaging surfaces (211) of the two mold pressing plates (210) to form a hole (123) in the center of the support unit (120).

13. A method for manufacturing a rotor disk, characterized in that: The following steps are involved: S1, providing a silicon steel unit (110), wherein the silicon steel unit (110) comprises a plurality of silicon steel blocks (111) arranged circumferentially at intervals, and a connecting rib (112) connected between two adjacent silicon steel blocks (111); S2, integrally forming a support unit (120) on the silicon steel unit (110), wherein the support unit (120) wraps around the periphery of each silicon steel block (111) and wraps around the connecting rib (112), and both axial ends of each silicon steel block (111) are exposed.

14. The manufacturing method according to claim 13, characterized in that: The connecting rib (112) separates two adjacent silicon steel blocks (111) into slots (113) arranged on both axial sides of the silicon steel block (111), and the step S1 comprises: rolling the punched and sheared strip silicon steel sheet (1100) to form an integrally connected silicon steel block (111) and connecting rib (112).

15. The manufacturing method according to claim 14, characterized in that: The support unit (120) includes a plurality of laminates (121), and the step S2 includes: S21, stacking the multiple layers of the laminate (121) in the slots (113) on both axial sides of the silicon steel block (111); S23, placing the entire silicon steel unit (110) after laminating the laminations (121) in a manufacturing device (200), and forming a molding space (2000) by closing the mold of the manufacturing device (200), so that the laminations (121) are hot pressed in the molding space (2000).

16. The manufacturing method according to claim 15, characterized in that: The steps S21 and S23 also include: S22, wrapping the ring body (122) around the outer periphery (1113) of each silicon steel block (111).

17. The manufacturing method according to claim 13 or 14, characterized in that: The support unit (120) comprises an injection molded body, and the step S2 comprises: S21, placing the silicon steel unit (110) in a molding space (2000) of a manufacturing device (200); S22, injecting molding into the molding space (2000) to form the supporting unit (120).

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