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CN-224233473-U - Rotor capable of improving noise

CN224233473UCN 224233473 UCN224233473 UCN 224233473UCN-224233473-U

Abstract

A rotor capable of improving noise comprises a rotor main body and a rotor shaft body, wherein a plurality of elastic arms are distributed on the rotor main body, a plurality of protruding points are distributed on the rotor shaft body, the rotor shaft body elastically moves on the rotor main body up and down through the matching of the protruding points and the elastic arms, one end of each elastic arm is provided with an action point, the elastic arms elastically act on the protruding points through the action points, and the action points are in surface contact with the protruding points. According to the rotor, the plurality of elastic arms are distributed on the rotor main body, the plurality of protruding points are distributed on the rotor shaft body, and the rotor shaft body elastically moves on the rotor main body up and down through the matching of the protruding points and the elastic arms, so that after the rotor is installed on the motor shell, a gap between the rotor and the motor shell can be eliminated, the phenomenon of up-and-down movement along a central shaft can not occur when the rotor rotates, noise is improved, in addition, the elastic arms are integrally arranged on the rotor main body, the rotor is simpler in structure, the assembly problem is not required to be considered, and meanwhile, the manufacturing cost is reduced.

Inventors

  • SHAN GENGMING

Assignees

  • 佛山市顺德区恒兴微电机有限公司

Dates

Publication Date
20260512
Application Date
20250514

Claims (10)

  1. 1. A rotor capable of improving noise comprises a rotor main body (1) and a rotor shaft body (2) arranged on the rotor main body (1), and is characterized in that a plurality of elastic arms (3) are distributed on the rotor main body (1), a plurality of protruding points (4) are distributed on the rotor shaft body (2), and the rotor shaft body (2) elastically moves on the rotor main body (1) up and down through the matching of the protruding points (4) and the elastic arms (3).
  2. 2. The rotor as claimed in claim 1, characterized in that the spring arm (3) is provided with an action point (5) at one end, the spring arm (3) acting elastically on the projection (4) via the action point (5).
  3. 3. The rotor for noise improvement according to claim 2, wherein the point of action (5) is in surface contact with the bump (4).
  4. 4. The rotor for improving noise according to claim 2, wherein the rotor body (1) is provided with an inner hole (6) at the center, and the elastic arm (3) is suspended on the inner hole (6).
  5. 5. The noise-improving rotor according to claim 2, wherein the elastic arms (3) are in the shape of a bar.
  6. 6. The rotor for improving noise according to claim 4, wherein a plurality of positioning ribs (7) are annularly arranged on the periphery of the inner hole (6), a plurality of positioning notches (8) are annularly arranged on the periphery of the rotor shaft body (2), and the positioning ribs (7) are inserted into the positioning notches (8).
  7. 7. The rotor for noise improvement according to claim 4, wherein the elastic arms (3) are annularly distributed on the inner hole (6), and the salient points (4) are annularly distributed on the rotor shaft body (2).
  8. 8. The rotor as set forth in claim 4, wherein the rotor body (1) comprises an outer ring body (13) and an intermediate rubber member (14) disposed at the center of the outer ring body (13), the elastic arm (3) is integrally disposed on the intermediate rubber member (14), and the inner hole (6) is disposed at the center of the intermediate rubber member (14).
  9. 9. The rotor as set forth in claim 8, further comprising a rotation shaft, wherein a cylinder (9) is provided at the center of the inner hole (6), a first rotation hole (10) is provided on the cylinder (9), a second rotation hole (11) is provided on the rotor shaft body (2), and the rotation shaft sequentially passes through the first rotation hole (10) and the second rotation hole (11).
  10. 10. The rotor for improving noise according to claim 9, wherein the inner hole (6) is annularly provided with a plurality of connecting ribs (12), one end of each connecting rib (12) is connected with the side wall of the inner hole (6), the other end of each connecting rib is connected with the cylinder (9), and the elastic arm (3) is arranged on one side of each connecting rib (12).

Description

Rotor capable of improving noise Technical Field The utility model relates to the technical field of motors, in particular to a rotor capable of improving noise. Background The Chinese patent document No. CN210074991U discloses a motor in the year 2 and the month 14 of 2020, in particular to a motor with an elastic connection structure of a rotor and a rotor shaft body. In the prior art, the motor rotor and the rotor shaft body structure associated with the motor rotor can cause the rotor to collide with the shell to generate obvious noise. Aiming at the defects in the prior art, the utility model provides a motor with an elastic connecting structure of a rotor and a rotor shaft body. The motor with the connecting mechanism comprises a rotor set, a lower shell, a stator set, a lead set, an upper cover, a rotor shaft body set and a central shaft, wherein the rotor set comprises a rotor, a rotor shaft body and a spring. When the rotor set of the motor rotates when being electrified, the gap between the upper cover and the rotor set is eliminated because of the elastic support of the spring in the middle of the rotor set, the rotor set cannot move up and down in operation, so that noise is greatly reduced, but the structure of the rotor set is complicated due to the addition of the spring, the assembly difficulty is increased, and the manufacturing cost is also increased. Therefore, further improvements are needed. Disclosure of utility model The utility model aims to provide a rotor which has the advantages of simple structure, low noise, easy assembly, low cost and strong practicability and can improve the noise, so as to overcome the defects of the prior art. The rotor capable of improving noise comprises a rotor main body and a rotor shaft body arranged on the rotor main body, and is characterized in that a plurality of elastic arms are distributed on the rotor main body, a plurality of protruding points are distributed on the rotor shaft body, and the rotor shaft body elastically moves up and down on the rotor main body through the matching of the protruding points and the elastic arms. One end of the elastic arm is provided with an action point, and the elastic arm elastically acts on the salient point through the action point. The action points are in surface contact with the convex points. An inner hole is formed in the center of the rotor main body, and the elastic arm is arranged on the inner hole in a suspending mode. The elastic arm is in a strip shape. The periphery of the inner hole is annularly provided with a plurality of positioning ribs, the periphery of the rotor shaft body is annularly provided with a plurality of positioning gaps, and the positioning ribs are inserted into the positioning gaps. The elastic arms are annularly distributed on the inner hole, and the salient points are annularly distributed on the rotor shaft body. The rotor main body comprises an outer ring body and a middle rubber piece arranged in the center of the outer ring body, the elastic arm is integrally arranged on the middle rubber piece, and the inner hole is arranged in the center of the middle rubber piece. Still include the axis of rotation, the center of hole is provided with the cylinder, is provided with first rotation hole on the cylinder, is provided with the second rotation hole on the rotor shaft body, and the axis of rotation passes first rotation hole and second rotation hole in proper order. A plurality of connecting ribs are annularly distributed on the inner hole, one end of each connecting rib is connected with the side wall of the inner hole, the other end of each connecting rib is connected with the cylinder, and the elastic arm is arranged on one side of each connecting rib. According to the rotor, the plurality of elastic arms are distributed on the rotor main body, the plurality of protruding points are distributed on the rotor shaft body, and the rotor shaft body elastically moves on the rotor main body up and down through the matching of the protruding points and the elastic arms, so that after the rotor is installed on the motor shell, a gap between the rotor and the motor shell can be eliminated, the phenomenon of up-and-down movement along a central shaft can not occur when the rotor rotates, noise is improved, in addition, the elastic arms are integrally arranged on the rotor main body, the rotor is simpler in structure, the assembly problem is not required to be considered, and meanwhile, the manufacturing cost is reduced. Drawings FIG. 1 is a cross-sectional view of a rotor according to an embodiment of the present utility model. Fig. 2 is a schematic diagram of the overall structure of a rotor according to an embodiment of the present utility model. Fig. 3 is an exploded view of a rotor according to an embodiment of the present utility model. Fig. 4 is a schematic overall structure of a rotor body according to an embodiment of the utility model. Fig. 5 is a schematic diagram showing t