Shaft sleeve assembly, blade mounting structure and air conditioner

Patent metadata

Field	Value
Publication number	US-11680577-B2
Application number	US-201816970568-A
Country	US
Kind code	B2
Filing date	Aug 31, 2018
Priority date	Mar 15, 2018
Publication date	Jun 20, 2023
Grant date	Jun 20, 2023

Abstract

Some embodiments of the present disclosure provide a shaft sleeve assembly, a blade mounting structure and an air conditioner. The shaft sleeve assembly is configured to connect a blade shaft and a motor shaft and includes: a blade shaft sleeve a first end of the blade shaft sleeve being configured to be connected with the blade shaft; and a motor shaft sleeve, a first end of the motor shaft sleeve being configured with be connected to the motor shaft and a second end of the motor shaft sleeve being connected with a second end of the blade shaft sleeve and at least one of the blade shaft sleeve and the motor shaft sleeve is an injection molded member.

First claim

What is claimed is:

1. A blade mounting structure, comprising a blade shaft, a motor shaft and a shaft sleeve assembly, wherein the shaft sleeve assembly is configured to connect the blade shaft and the motor shaft, and the shaft sleeve assembly comprising:
a blade shaft sleeve, a first end of the blade shaft sleeve being configured to be connected with the blade shaft; and
a motor shaft sleeve, a first end of the motor shaft sleeve being configured to be connected with the motor shaft, and a second end of the motor shaft sleeve being connected with a second end of the blade shaft sleeve,
wherein at least one of the blade shaft sleeve and the motor shaft sleeve is an injection molded member.

2. The blade mounting structure as claimed in claim 1 , wherein the blade shaft sleeve comprises:
a first mounting hole, the blade shaft being detachably disposed in the first mounting hole in a penetration manner.

3. The blade mounting structure as claimed in claim 2 , wherein the first mounting hole is a tapered hole or a cylindrical hole.

4. The blade mounting structure as claimed in claim 2 , wherein a first predetermined space a is formed between an end surface of the blade shaft and a bottom wall of the first mounting hole, a>0.

5. The blade mounting structure as claimed in claim 2 , wherein the blade mounting structure comprises a first cooperative platform surface disposed on the blade shaft, a second cooperative platform surface is disposed on an inner wall of the first mounting hole, and the first cooperative platform surface towards the second cooperative platform surface; wherein a second predetermined space b is formed between a bottom end of the first cooperative platform surface and a bottom end of the second cooperative platform surface, b>0.

6. The blade mounting structure as claimed in claim 1 , wherein the blade mounting structure further comprises:
a first fastener, the first fastener being disposed on the blade shaft sleeve and the blade shaft in a penetration manner;
wherein an extension direction of the first fastener is consistent with an extension direction of an axis of the blade shaft.

7. The blade mounting structure as claimed in claim 6 , wherein an axis of the first fastener is coincided with an axis of the blade shaft.

8. The blade mounting structure as claimed in claim 6 , wherein a third predetermined space c is formed between an end portion of the first fastener and an end portion of a motor shaft sleeve, c>0.

9. The blade mounting structure as claimed in claim 1 , wherein the blade shaft sleeve is in threaded connection with the blade shaft.

10. The blade mounting structure as claimed in claim 9 , wherein at least a part of the blade shaft is a threaded segment, and the blade shaft sleeve comprises:
a blade shaft sleeve body; and
a first threaded portion, the first threaded portion being disposed in the blade shaft sleeve body, and the blade shaft being in threaded connection with the first threaded portion.

11. The blade mounting structure as claimed in claim 10 , wherein the blade shaft sleeve body is molded on an outer surface of the first threaded portion by an injection process.

12. The blade mounting structure as claimed in claim 1 , wherein the motor shaft sleeve is in threaded connection with the motor shaft.

13. The blade mounting structure as claimed in claim 12 , wherein a screw thread is disposed on the motor shaft, and the motor shaft sleeve comprises:
a motor shaft sleeve body; and
a second threaded portion, the second threaded portion being disposed in the motor shaft sleeve body, and the motor shaft being in threaded connection with the second threaded portion.

14. An air conditioner, comprising the blade mounting structure as claimed in claim 6 , a blade and a motor, wherein the blade is connected with the motor by the blade mounting structure.

15. The air conditioner as claimed in claim 14 , wherein the air conditioner further comprises:
a rubber bearing ring, the rubber bearing ring being disposed between the blade and the motor, at least a part of the blade shaft sleeve being disposed in the rubber bearing ring in a penetration manner, and the blade shaft sleeve being in clearance fit with the rubber bearing ring.

16. The blade mounting structure as claimed in claim 1 , wherein at least a part of the blade shaft sleeve comprises a tapered segment.

17. The blade mounting structure as claimed in claim 1 , wherein the blade shaft sleeve comprises:
a first shaft segment, the first shaft segment being configured to be connected with the blade shaft; and
a second shaft segment, the second shaft segment being configured to be connected with the motor shaft sleeve,
wherein the first shaft segment and the second shaft segment are in conic transition.

18. The blade mounting structure as claimed in claim 17 , wherein an outer diameter value of the first shaft segment is smaller than an outer diameter value of the second shaft segment.

19. The blade mounting structure as claimed in claim 17 , wherein the blade shaft sleeve comprises a plurality of internal spiral latches disposed in the second shaft segment, and a mounting groove is formed between two adjacent internal spiral latches in the plurality of internal spiral latches; and the motor shaft sleeve comprises a plurality of external spiral clamping jaws, and each of the plurality of external spiral clamping jaw is respectively clamped in a corresponding mounting groove.

Assignees

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

Inventors

• Wang Chunjie
• Yang Pan
• Huang Jun

Classifications

• F04D29/054 Primary

  Arrangements for joining or assembling shafts · CPC title

• F04D29/263

  mounting fan or blower rotors on shafts · CPC title

• F04D29/626

  Mounting or removal of fans · CPC title

• F24F13/00

  Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening · CPC title

• F04D29/28

  for centrifugal or helico-centrifugal pumps {for radial-flow or helico-centrifugal pumps} · CPC title