Bearing assembly, bearing assembly mounting structure and air blowing apparatus

Patent metadata

Field	Value
Publication number	US-11215223-B2
Application number	US-201816646670-A
Country	US
Kind code	B2
Filing date	Sep 4, 2018
Priority date	Dec 29, 2017
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

Provided are a bearing assembly, a bearing assembly mounting structure and an air blowing apparatus. The bearing assembly includes: a bearing sleeve including an inner assembling face, and a bearing mounted into the bearing sleeve from an axial side of the bearing sleeve and including an outer assembling face corresponding to the inner assembling face. The inner assembling face and/or the outer assembling face is provided with a supporting structure protruding toward an opposing assembling face and cooperating with the opposing assembling face in a contacting manner, and the supporting structure is symmetrically disposed in a peripheral direction of the assembling face where the supporting structure is located.

First claim

What is claimed:

1. A bearing assembly, comprising:
a bearing sleeve, comprising an inner assembling face; and
a bearing, mounted into the bearing sleeve from an axial side of the bearing sleeve and comprising an outer assembling face corresponding to the inner assembling face, wherein, each of the inner assembling face and the outer assembling face is provided with a supporting structure protruding toward an opposing assembling face and cooperating with the opposing assembling face in a contacting manner, and the supporting structure is symmetrically disposed in a peripheral direction of the assembling face where the supporting structure is located;
or, the inner assembling face is provided with a supporting structure protruding toward the outer assembling face and cooperating with the outer assembling face in a contacting manner, and the supporting structure is symmetrically disposed in a peripheral direction of the outer assembling face where the supporting structure is located;
or, the outer assembling face is provided with a supporting structure protruding toward the inner assembling face and cooperating with the inner assembling face in a contacting manner, and the supporting structure is symmetrically disposed in a peripheral direction of the inner assembling face where the supporting structure is located;
wherein the bearing assembly further comprises an axial limiting structure disposed between the bearing sleeve and the bearing and configured to limit relative movement of the bearing sleeve and the bearing after assembling in an axial direction; the axial limiting structure comprises a convex section moulded on the inner assembling face and a groove section moulded on the outer assembling face, and the convex section cooperates with the groove section in a clamping manner after the bearing is mounted into the bearing sleeve.

2. The bearing assembly as claimed in claim 1 , wherein, the supporting structure comprises a plurality of ribs which are disposed along an axial direction of the assembling face where the supporting structure is located.

3. The bearing assembly as claimed in claim 2 , wherein, the plurality of ribs are uniformly disposed in the peripheral direction of the assembling face where the plurality of ribs are located.

4. The bearing assembly as claimed in claim 2 , wherein, the plurality of ribs are provided on the outer assembling face of the bearing, and each of the plurality of ribs is provided with a chamfer angle on a front end along a direction of mounting the bearing in.

5. The bearing assembly as claimed in claim 1 , wherein, the supporting structure comprises a plurality of round bulges.

6. The bearing assembly as claimed in claim 1 , wherein, the axial limiting structure is positioned on a front side of the supporting structure in the direction of mounting the bearing.

7. The bearing assembly as claimed in claim 1 , wherein, the convex section is provided with a supporting boss protruding toward the groove section and cooperating with a surface of the groove section on an opposite side in a contacting manner, so that a gap is formed between surfaces of the convex section and the groove section.

8. The bearing assembly as claimed in claim 1 , wherein, the bearing assembly comprises a chamfer angle provided on a front end of the bearing.

9. The bearing assembly as claimed in claim 1 , wherein, the inner assembling face and the outer assembling face are cylindrical surfaces.

10. A bearing assembly mounting structure, comprising:
a housing, the housing being provided with a bearing seat and a first buckle, and the baring seat, the first buckle and the housing being integrally moulded; and
the bearing assembly as claimed in claim 1 , the bearing assembly being provided with a second buckle, and the second buckle cooperating with the first buckle when the bearing assembly is assembled to the bearing seat to form a buckle structure of locking the bearing assembly.

11. The bearing assembly mounting structure as claimed in claim 10 , wherein, the bearing assembly is mounted into the bearing seat along a preset inserting direction, the first buckle is disposed on an inner side of the bearing seat along the preset inserting direction; the bearing assembly is provided with an extension arm extending toward the bearing seat, and the second buckle is moulded on the extension arm; when the bearing assembly is mounted into the bearing seat, the extension arm extends into the inner side of the bearing seat, so that the buckle structure is formed by the second buckle and the first buckle.

12. The bearing assembly mounting structure as claimed in claim 11 , wherein, a first supporting wall and a second supporting wall, which are provided in parallel and disposed at intervals, are moulded on the housing; and the bearing seat is formed on a corresponding end of the first supporting wall and a corresponding end of the second supporting wall.

13. The bearing assembly mounting structure as claimed in claim 12 , wherein, the second buckle is moulded on inner walls corresponding to the first supporting wall and the second supporting wall, respectively; the extension arm comprises a first extension arm and a second extension arm which are disposed on two axial ends of the bearing assembly; and the first extension arm and the second extension arm are formed with the second buckle.

14. The bearing assembly mounting structure as claimed in claim 13 , wherein, the first extension arm and the second extension arm are positioned on inner sides or outer sides of the first supporting wall and the second supporting wall, and cooperate with corresponding inner walls or outer walls of the first supporting wall and the second supporting wall.

15. The bearing assembly mounting structure as claimed in claim 10 , wherein, at least one of the first buckle and the second buckle is provided with a guiding slope configured to guide the first buckle and the second buckle to form the buckle structure.

16. The bearing assembly mounting structure as claimed in claim 10 , wherein, the first buckle is a first clamping bulge or a first clamping groove, and the second buckle is a second clamping groove cooperating with the first clamping bulge or a second clamping bulge cooperating with the first clamping groove.

17. The bearing assembly mounting structure as claimed in claim 10 , wherein, the at least one of the first buckle and the second buckle is an elastic buckle.

18. The bearing assembly mounting structure as claimed in claim 10 , wherein, the bearing assembly is the one cooperating with a blade shaft of a cross-flow blade.

19. The bearing assembly mounting structure as claimed in claim 10 , wherein, the bearing assembly comprises the bearing sleeve and the bearing, and the bearing is detachably mounted inside the bearing sleeve.

20. An air blowing apparatus, comprising:
a blade, having a blade shaft, the blade being mounted inside a housing; and
the bearing assembly mounting structure as claimed in claim 10 , the bearing assembly supporting the blade shaft and cooperating with the blade shaft in a rotating manner.

21. The air blowing apparatus as claimed in claim 20 , wherein, the air blowing apparatus is a tower fan.

Assignees

• Gree Electric Appliances Wuhan Co Ltd
• Gree Electric Appliances Inc Zhuhai

Inventors

• Luo Hanbing
• Cao Lin
• Pan Wenkang

Classifications

• F04D29/043

  Shafts · CPC title

• F16C2226/80

  with splines, serrations or similar profiles to prevent movement between joined parts · CPC title

• F04D29/057

  hydrostatic; hydrodynamic · CPC title

• F16C35/02

  in the case of sliding-contact bearings · CPC title

• F16C23/043

  with spherical surfaces, e.g. spherical plain bearings · CPC title