FAN AND FRAME STRUCTURE THEREOF

• US 20180058470A1
• Filed: 08/25/2017
• Published: 03/01/2018
• Est. Priority Date: 08/25/2016
• Status: Active Grant

• Current Assignee: Delta Electronics Incorporated
• Original Assignee: Delta Electronics Incorporated
• Inventors: TU, Tai-Ying, LIN, Yi-Wen, WU, Chih-Hui, HSIEH, Ming-Kai
• Granted Patent: US 10,641,285 B2
• Time in Patent Office: Days
• CPC Class Codes: F04D 19/002 Axial flow fans
• CPC Class Codes: F04D 25/0613 the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
• CPC Class Codes: F04D 25/08 the working fluid being air, e.g. for ventilation
• CPC Class Codes: F04D 29/325 for axial flow fans blade mountings F04D29/34, blades F04D29/38
• CPC Class Codes: F04D 29/522 especially adapted for elastic fluid pumps
• CPC Class Codes: F04D 29/542 Bladed diffusers fixing blades to stators F01D9/042

Abstract

A fan includes an impeller, a drive device, and a frame structure. The driving device drives the impeller to rotate, and the frame structure accommodates the driving device. The frame structure includes a frame body, a first frame, a second frame, a base and a plurality of supports. The frame body has first engaging portions and second engaging portions, which are disposed annularly at the upper end and the lower end of the frame body, respectively. The first frame is mounted on the frame body and disposed corresponding to the first engaging portions. The second frame is mounted on the frame body and disposed corresponding to the second engaging portions. The base is disposed within the frame body and located adjacent to the second frame. The supports are disposed around the base. The material of the frame body is different from that of the first and second frames.

Claims

1. A frame structure, comprising:

a frame body having a plurality of first engaging portions and a plurality of second engaging portions, wherein the first engaging portions are disposed annularly at an upper end of the frame body, and the second engaging portions are disposed annularly at a lower end of the frame body;

a first frame mounted on the upper end of the frame body and disposed corresponding to the first engaging portions, wherein a part of the first frame is embedded in the first engaging portions;

a second frame mounted on the lower end of the frame body and disposed corresponding to the second engaging portions;

a base disposed within the frame body and located adjacent to the second frame; and

a plurality of supports disposed around a periphery of the base, wherein two ends of each of the supports are connected to the base and an inner wall of the frame body, respectively;

wherein a material of the frame body is different from that of the first and second frames.

2. The frame structure of claim 1, wherein the frame body is made of metal or alloy, and the first and second frames, the base and the supports are made of plastics, rubbers or any of their combinations.

3. The frame structure of claim 1, wherein the second frame, the base and the supports are integrated as a single piece, and the single piece is embedded in the second engaging portions and fixed to the frame body.

4. The frame structure of claim 1, wherein the support is a static blade or a rib.

5. The frame structure of claim 1, wherein the frame body further comprises a plurality of third engaging portions, the third engaging portions are annularly disposed at the lower end of the frame body and located adjacent to a tail portion of the frame structure, and the second engaging portions are located between the first and third engaging portions.

6. The frame structure of claim 5, wherein the base and the supports are integrated as a single piece, the single piece is embedded in the second engaging portions and fixed to the inner wall of the frame body, and the second frame is embedded in the third engaging portions and fixed to the frame body.

7. The frame structure of claim 5, wherein each of the first, second and third engaging portions is an opening structure, a recess structure, or a protrusion structure.

8. The frame structure of claim 7, wherein a shape of the opening structure is a circle, a wing-shaped, a rectangle, an arc, a curve, or an irregular shape.

9. The frame structure of claim 1, wherein a top surface of the base is configured with an opening, and the opening is connected to a metal bushing.

10. A fan, comprising:

an impeller;

a drive device driving the impeller to rotate; and

a frame structure accommodating the driving device and comprising;

a frame body having a plurality of first engaging portions and a plurality of second engaging portions, wherein the first engaging portions are disposed annularly at an upper end of the frame body, and the second engaging portions are disposed annularly at a lower end of the frame body;

a first frame mounted on the upper end of the frame body and disposed corresponding to the first engaging portions, wherein a part of the first frame is embedded in the first engaging portions;

a second frame mounted on the lower end of the frame body and disposed corresponding to the second engaging portions;

a base disposed within the frame body and located adjacent to the second frame; and

a plurality of supports disposed around a periphery of the base, wherein two ends of each of the supports are connected to the base and an inner wall of the frame body, respectively;

wherein a material of the frame body is different from that of the first and second frames.

11. The fan of claim 10, wherein the frame body is made of metal or alloy, and the first frame, the second frame, the base and the supports are made of plastics, rubbers or any of their combinations.

12. The fan of claim 10, wherein the second frame, the base and the supports are integrated as a single piece, and the single piece is embedded in the second engaging portions and fixed to the frame body.

13. The fan of claim 10, wherein the support is a static blade or a rib.

14. The fan of claim 10, wherein the frame body further comprises a plurality of third engaging portions, the third engaging portions are annularly disposed at the lower end of the frame body and located adjacent to a tail portion of the frame structure, and the second engaging portions are located between the first and third engaging portions.

15. The fan of claim 14, wherein the base and the supports are integrated as a single piece, the single piece is embedded in the second engaging portions and fixed to the inner wall of the frame body, and the second frame is embedded in the third engaging portions and fixed to the frame body.

16. The fan of claim 14, wherein each of the first, second and third engaging portions is an opening structure, a recess structure, or a protrusion structure.

17. The fan of claim 16, wherein a shape of the opening structure is a circle, a wing-shaped, a rectangle, an arc, a curve, or an irregular shape.

18. The fan of claim 10, wherein a top surface of the base is configured with an opening, and the opening is connected to a metal bushing.