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CN-121984257-A - Novel rotor

CN121984257ACN 121984257 ACN121984257 ACN 121984257ACN-121984257-A

Abstract

The utility model provides a novel rotor, including the axis body, with the coaxial setting of axis body and be located the peripheral iron core of axis body, a plurality of setting is at the iron core periphery and along the magnet and the fixed knot who arranges of circumference constructs, the iron core sets up to thin structure in order to reduce the volume of iron core, the iron core is whole to be the tube-shape, the radial cross-section of iron core is circular shape or regular polygon, axis body, iron core and magnet lock in order to make axis body, iron core and magnet three synchronous rotation through fixed knot construct, fixed knot constructs including being used for the radiating flabellum of rotor, the flabellum is located between axis body and the iron core, the flabellum is located the inboard of iron core, the flabellum drives the air operation in order to promote the heat dissipation of rotor when rotor rotates the operation. The iron core reduces the cost of the iron core and the rotor.

Inventors

  • LIU YU

Assignees

  • 中山市国之梦电器有限公司

Dates

Publication Date
20260505
Application Date
20260120

Claims (10)

  1. 1. The utility model provides a novel rotor, its characterized in that includes axis body (1), with axis body (1) coaxial setting and lie in axis body (1) outlying iron core (2) and a plurality of setting are at iron core (2) periphery and magnet (3) of arranging along circumference, and iron core (2) set up to thin form structure in order to reduce the volume of iron core (2).
  2. 2. A new rotor according to claim 1, characterized in that the core (2) is entirely cylindrical.
  3. 3. The novel rotor as claimed in claim 1, wherein the radial cross section of the iron core (2) is in a circular shape or a regular polygon shape, and the magnet (3) is arranged on the outer side surface of the iron core (2) in a fitting manner.
  4. 4. The novel rotor as claimed in claim 1, wherein the iron core (2) only comprises a side thin-walled body (21), the side thin-walled body (21) extends along the circumferential direction and encloses the iron core (2), the iron core (2) is formed by stamping or bending, and the magnet (3) is arranged on the outer side surface of the side thin-walled body (21) in a fitting manner.
  5. 5. The novel rotor as claimed in claim 1, comprising a fixing structure (5), wherein the shaft body (1), the iron core (2) and the magnet (3) are locked by the fixing structure (5) so that the shaft body (1), the iron core (2) and the magnet (3) synchronously rotate, and the shaft body (1) and the fixing structure (5) are fixedly connected by integral injection molding or the shaft body (1) is pressed on the fixing structure (5).
  6. 6. The novel rotor according to claim 5, wherein the fixing structure (5) comprises fan blades (51) for cooling the rotor, the fan blades (51) are located between the shaft body (1) and the iron core (2), the fan blades (51) are located on the inner side of the iron core (2), the fan blades (51) drive air to run to promote cooling of the rotor during rotation operation of the rotor, and the number of the fan blades (51) is a plurality of and are distributed at intervals along the circumferential direction; a heat dissipation section (4) is reserved between the inner side of the iron core (2) and the fan blades (51), the heat dissipation section (4) penetrates through the rotor along the two axial ends of the shaft body (1), and the inner side of the iron core (2) is exposed.
  7. 7. The novel rotor as claimed in claim 6, wherein the fixing structure (5) comprises an upper end cover (52), a lower end cover (53) and side plates (54), the upper end cover (52) is arranged at the upper end parts of the iron core (2) and the magnets (3), the lower end cover (53) is arranged at the lower end parts of the iron core (2) and the magnets (3), the side plates (54) are arranged in a plurality of circumferentially spaced mode, two ends of each side plate (54) are respectively connected with the upper end cover (52) and the lower end cover (53), the side plates (54) are at least partially abutted against the outer side surfaces of the magnets (3) to prevent the magnets (3) from loosening, and one side plate (54) is used for simultaneously abutting and arranging two magnets (3); The two ends of the fan blade (51) respectively extend out of the upper end cover (52) and the lower end cover (53) along the axial direction of the shaft body (1), and the fan blade (51) is fixedly connected with the upper end cover (52), the lower end cover (53) and the side plates (54).
  8. 8. The novel rotor as claimed in claim 7, wherein the fixing structure (5) comprises a shaft seat (55) fixedly connected with the shaft body (1), the shaft body (1) and the shaft seat (55) are fixedly connected through integral injection molding or the shaft body (1) is pressed on the shaft seat (55), the shaft seat (55) is positioned at the periphery of the shaft body (1), the fan blade (51) is fixedly connected to the outer side of the shaft seat (55), and the fan blade (51) is integrally injection molded with the upper end cover (52), the lower end cover (53), the side plate (54) and the shaft seat (55).
  9. 9. The novel rotor as claimed in claim 8, wherein the fan blades (51) are provided with expansion parts (511) extending outwards to the outer side of the iron core (2) along the radial direction of the shaft body (1), the upper part of the upper end cover (52) and/or the lower part of the lower end cover (53) are provided with expansion parts (511), and the expansion parts (511) do not extend out of the outer side part of the magnet (3) in the radial direction of the shaft body (1); the end part of the shaft seat (55) is provided with a limiting table (551) which is used for being in abutting fit with the end part of the bearing (7), the upper end part and the lower end part of the shaft seat (55) are respectively provided with the limiting table (551), and the limiting tables (551) are outwards protruded from the fan blades (51) along the axial direction of the shaft body (1); The upper end cover (52) and/or the lower end cover (53) are/is provided with through holes (57), the through holes (57) are opposite to the end faces of the magnet (3) so that at least part of the end faces of the magnet (3) are exposed and the contact area between the end faces of the magnet (3) and air is increased, the number of the through holes (57) is a plurality of and are distributed at intervals along the circumferential direction, the through holes (57) and the fan blades (51) are distributed in a staggered manner, the through holes (57) and the side plates (54) are distributed in a staggered manner, the through holes (57) are formed through the two ends of the axial direction of the shaft body (1), and the through holes (57) are formed through the outer side of the axial direction of the shaft body (1).
  10. 10. The novel rotor as claimed in claim 8, wherein a plurality of perforations (22) for injection molding are arranged on the side wall of the iron core (2), part of the perforations (22) are communicated with the fan blade (51) and the side plate (54), part of the perforations (22) are communicated with the iron core (2) and the side plate (54), part of the perforations (22) are communicated with the fan blade (51), the upper end cover (52) and the side plate (54), and part of the perforations (22) are communicated with the fan blade (51), the lower end cover (53) and the side plate (54); A plurality of magnets (3) are arranged at intervals along the circumferential direction, a spacing interval (6) is reserved between every two adjacent magnets (3), the spacing interval (6) is communicated with the perforation (22) relatively, a separation piece (56) is arranged in the spacing interval (6), the separation piece (56) is formed by injection molding, and the outer side of the separation piece (56) is connected with the side plate (54).

Description

Novel rotor Technical Field The invention belongs to the technical field of motors, and particularly relates to a novel rotor. Background The stator and the rotor are core components of the motor and respectively serve as a fixing part and a rotating part to work cooperatively, wherein the rotor comprises a core, a rotating shaft, a magnet and other structures, and in the prior art, the core of the rotor is large in block shape and large in radial thickness, and the core material cost is high. For example, chinese patent application publication No. CN107154692a discloses a permanent magnetic ferrite rotor, which includes a rotor core and a plurality of permanent magnetic ferrites, the center of the rotor core has a shaft hole, the inner plane of the permanent magnetic ferrites is attached to the corresponding side of the rotor core, the rotor core is in a regular prism shape, the rotor core is in a big block shape and has a larger radial thickness, the rotor core has a higher cost, there is a certain limitation, and further improvement is needed, in addition, the rotor is not provided with a related structure for cooling the rotor, which is not beneficial to the limitation of temperature during the operation of the rotor, affects the performance of the rotor, and also has a certain limitation, therefore, further improvement is needed. Disclosure of Invention The present invention aims to overcome at least one of the disadvantages of the prior art, and provides a novel rotor, wherein the iron core is arranged as a thin structural member, so that the volume of the iron core can be reduced, and the cost of the iron core and the rotor can be reduced. In order to achieve the above purpose, the technical scheme provided by the invention is as follows: The utility model provides a novel rotor, includes the axis body, with the coaxial setting of axis body and lie in the peripheral iron core of axis body and a plurality of setting at the iron core periphery and along the magnet that circumference was arranged, the iron core sets up to thin structural component in order to reduce the volume of iron core. In a further aspect of the present invention, the iron core is cylindrical as a whole. In a further aspect of the present invention, the radial cross section of the iron core is circular or regular polygon, and the magnet is attached to the outer side surface of the iron core. In a further scheme of the invention, the iron core only comprises a side thin-wall body, the side thin-wall body extends along the circumferential direction and encloses the iron core, the iron core is formed by stamping or bending, and the magnet is attached to the outer side surface of the side thin-wall body. In a further scheme of the invention, the shaft body, the iron core and the magnet are locked through the fixing structure so that the shaft body, the iron core and the magnet synchronously rotate, and the shaft body and the fixing structure are fixedly connected through integral injection molding or the shaft body is pressed on the fixing structure. In a further scheme of the invention, the fixing structure comprises fan blades for radiating the rotor, the fan blades are positioned between the shaft body and the iron core, the fan blades are positioned at the inner side of the iron core, and when the rotor rotates and runs, the fan blades drive air to run so as to promote the rotor to radiate, and the number of the fan blades is a plurality of and distributed at intervals along the circumferential direction; A heat dissipation section is reserved between the inner side of the iron core and the fan blades, two ends of the heat dissipation section along the axial direction of the shaft body respectively penetrate through the rotor, and the inner side of the iron core is exposed. In a further scheme of the invention, the fixing structure comprises an upper end cover, a lower end cover and side plates, wherein the upper end cover is arranged at the upper end parts of the iron core and the magnets, the lower end cover is arranged at the lower end parts of the iron core and the magnets, the number of the side plates is a plurality of and the side plates are distributed at intervals along the circumferential direction, the two ends of the side plates are respectively connected with the upper end cover and the lower end cover, at least part of the side plates are propped against the outer side surfaces of the magnets to prevent the magnets from loosening, and one side plate is propped against the two magnets at the same time; The two ends of the fan blade extend outwards to form an upper end cover and a lower end cover along the axial direction of the shaft body respectively, and the fan blade is fixedly connected with the upper end cover, the lower end cover and the side plates. In a further scheme of the invention, the fixing structure comprises a shaft seat fixedly connected with the shaft body, the shaft body and the shaft seat are fixedl