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CN-224218185-U - Motor structure

CN224218185UCN 224218185 UCN224218185 UCN 224218185UCN-224218185-U

Abstract

The utility model discloses a motor structure, which relates to the technical field of motors, and comprises a shell component, a motor body, a dust cover and a dust cover, wherein a rotating shaft hole and a power supply hole are formed in the shell component, the motor body is fixedly arranged in the shell component, a driving shaft is connected to a driving end of the motor body, extends to the outside of the shell component through the rotating shaft hole, the dust cover is fixedly sleeved on the driving shaft and is positioned outside the shell component, the dust cover is used for covering the rotating shaft hole, the dust cover is hermetically arranged in the power supply hole, a through hole part penetrating through the middle of the dust cover is formed in the through hole part, a power wire outside is used for penetrating through the through hole part, so that the power wire is electrically connected with the motor body, and the inner wall of the through hole part is mutually attached to the power wire. The technical scheme provided by the utility model can effectively improve the dustproof performance of the motor structure.

Inventors

  • ZHANG WENKUI

Assignees

  • 深圳市凯仕德科技有限公司

Dates

Publication Date
20260508
Application Date
20250410

Claims (10)

  1. 1. An electric motor structure, characterized in that it comprises: the shell component is provided with a rotating shaft hole and a power supply hole; the motor body is fixedly arranged in the shell assembly, the driving end of the motor body is connected with a driving rotating shaft, and the driving rotating shaft extends to the outside of the shell assembly through the rotating shaft hole; the dustproof cover is fixedly sleeved on the driving rotating shaft and positioned outside the shell assembly, and the dustproof cover is used for covering the rotating shaft hole; The dustproof sleeve is hermetically arranged in the power supply hole, a through hole part which penetrates through the dustproof sleeve is arranged in the middle of the dustproof sleeve and is used for allowing an external power line to penetrate through, so that the power line is electrically connected with the motor body, and the inner wall of the through hole part is mutually attached to the power line.
  2. 2. The motor structure of claim 1, wherein the housing assembly is provided with an outer protruding portion, the rotating shaft hole is formed in an outer protruding end face of the outer protruding portion, the dust cover is arranged on the outer side of the outer protruding portion, and a preset gap is formed between an inner wall of the dust cover and an outer wall of the outer protruding portion.
  3. 3. The motor structure according to claim 2, wherein the inner wall of the dust cover is provided with a brush portion, and the free end of the brush portion is in contact with the outer wall of the outer flange portion.
  4. 4. The motor structure according to claim 2, wherein the driving shaft is provided with an abutting portion protruding outwards, the abutting portion is arranged between the dust cover and the outer protruding portion, the abutting portion is used for limiting the dust cover to move towards the outer protruding portion, and the dust cover is in interference fit with the driving shaft.
  5. 5. The motor structure of claim 1, further comprising a stop collar, wherein the stop collar is fixedly sleeved on the driving shaft, the stop collar is located on one side of the dust cover away from the housing assembly, and the stop collar is used for being abutted with an external assembly part, and the assembly part is mounted on the driving shaft.
  6. 6. The motor structure according to claim 1, wherein the dust cover comprises a connecting part and an extending part which are connected, wherein the extending part is positioned outside the shell assembly; The connecting part comprises a first connecting piece, a second connecting piece and a third connecting piece which are sequentially arranged, wherein the cross-sectional area of the second connecting piece is smaller than that of the first connecting piece and that of the third connecting piece, the outer wall of the second connecting piece is mutually attached to the inner wall of the power supply hole, the first connecting piece and the third connecting piece are respectively positioned on the inner side and the outer side of the shell assembly, and the first connecting piece and the third connecting piece are combined and clamped on the shell wall of the shell assembly.
  7. 7. The motor structure according to claim 6, wherein a first end of the extension portion near the connecting portion is defined, a second end of the extension portion far from the connecting portion is defined, and a diameter of the through hole portion is gradually reduced from the first end of the extension portion toward the second end.
  8. 8. The motor structure according to claim 6 or 7, wherein the dust cover is made of an elastically deformable material.
  9. 9. The motor structure of claim 1, wherein the housing assembly comprises a first housing and a second housing, the shaft hole is arranged on one side of the first housing far away from the second housing, the first housing is provided with a first flange, the second housing is provided with a second flange, and the first flange and the second flange are mutually fixed through a plurality of bolts so that the first housing and the second housing are fixedly connected.
  10. 10. The motor structure according to claim 9, wherein the first flange member and the second flange member are provided with a convex portion and a concave portion on opposite sides thereof, respectively, and the convex portion and the concave portion are in an annular structure and are coaxially arranged around the axis of the first flange member; and the concave cavity of the concave part is internally filled with a sealant layer.

Description

Motor structure Technical Field The utility model relates to the technical field of motors, in particular to a motor structure. Background An electric motor is a driving device capable of converting electric energy into mechanical energy, and its main function is to generate driving torque as a power source for electric appliances or various machines. The general motor structure comprises a shell component, a motor body and a driving rotating shaft, wherein the motor body is arranged inside the shell component, the driving rotating shaft is arranged at the driving end of the motor body and extends to the outside of the shell component, and power is transmitted to the outside through the driving rotating shaft. Meanwhile, a power supply hole is formed in the side portion of the shell assembly, so that an external power line can be electrically connected with the motor body located in the shell assembly through the power supply hole. In the prior art, the sealing effect of the connection part of the driving rotating shaft and the power line and the shell component is not ideal, so that dust or carbon powder particles easily enter the shell component from the connection part, and are adhered to the surface of the motor body to cause short circuit of the motor, and safety accidents easily occur in the use process. For the above reasons, a new motor structure is needed to effectively improve the dustproof performance. It should be noted that the foregoing is only used to assist in understanding the technical solution of the present utility model, and does not represent an admission that the foregoing is prior art. Disclosure of utility model The utility model mainly aims to provide a motor structure, which aims to effectively improve the dustproof performance of the motor structure. In order to achieve the above object, the present utility model proposes a motor structure; specifically, the motor structure includes: the shell component is provided with a rotating shaft hole and a power supply hole; the motor body is fixedly arranged in the shell assembly, the driving end of the motor body is connected with a driving rotating shaft, and the driving rotating shaft extends to the outside of the shell assembly through the rotating shaft hole; the dustproof cover is fixedly sleeved on the driving rotating shaft and positioned outside the shell assembly, and the dustproof cover is used for covering the rotating shaft hole; The dustproof sleeve is hermetically arranged in the power supply hole, a through hole part which penetrates through the dustproof sleeve is arranged in the middle of the dustproof sleeve and is used for allowing an external power line to penetrate through, so that the power line is electrically connected with the motor body, and the inner wall of the through hole part is mutually attached to the power line. In one embodiment, the housing assembly is provided with an outer protruding portion, the rotating shaft hole is formed in an outer protruding end face of the outer protruding portion, the dust cover is arranged on the outer side of the outer protruding portion, and a preset gap is formed between the inner wall of the dust cover and the outer wall of the outer protruding portion. In one embodiment, the inner wall of the dust cover is provided with a brush part, and the free end of the brush part is in contact with the outer wall of the outer part. In one embodiment, the driving shaft is provided with an abutting portion protruding outwards, the abutting portion is arranged between the dust cover and the outer protruding portion, and is used for limiting the dust cover to move towards the outer protruding portion, and the dust cover is in interference fit with the driving shaft. In an embodiment, the motor structure further comprises a limiting ring, the limiting ring is fixedly sleeved on the driving rotating shaft, the limiting ring is located on one side, far away from the shell assembly, of the dust cover, and the limiting ring is used for being abutted with an external assembly part, and the assembly part is mounted on the driving rotating shaft. In an embodiment, the dust cover comprises a connecting part and an extending part which are connected, wherein the extending part is positioned outside the shell assembly, the through hole part is penetrated through the connecting part and the extending part, the connecting part comprises a first connecting piece, a second connecting piece and a third connecting piece which are sequentially arranged, the cross-sectional area of the second connecting piece is smaller than that of the first connecting piece and the cross-sectional area of the third connecting piece, the outer wall of the second connecting piece is mutually attached to the inner wall of the power supply hole, the first connecting piece and the third connecting piece are respectively positioned on the inner side and the outer side of the shell assembly, and the first connecting piece a