FAN FRAME BODY WITH DAMPING STRUCTURE AND FAN THEREOF

• US 20190323523A1
• Filed: 04/23/2018
• Published: 10/24/2019
• Est. Priority Date: 04/23/2018
• Status: Active Grant

• Current Assignee: Asia Vital Components Company Limited
• Original Assignee: Asia Vital Components Company Limited
• Inventors: Chang, Bor-Haw, Wang, Chung-Shu
• Granted Patent: US 11,181,125 B2
• Time in Patent Office: Days
• 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 25/0646 Details of the stator
• CPC Class Codes: F04D 29/023 especially adapted for elastic fluid pumps
• CPC Class Codes: F04D 29/403 especially adapted for elastic fluid pumps
• CPC Class Codes: F04D 29/526 Details of the casing section radially opposing blade tips ducts F04D29/545
• CPC Class Codes: F04D 29/668 damping or preventing mechanical vibrations
• CPC Class Codes: F04D 29/685 Inducing localised fluid recirculation in the stator-rotor interface
• CPC Class Codes: F05B 2240/14 Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies there within
• CPC Class Codes: F05B 2240/20 Rotors
• CPC Class Codes: F05B 2280/401 Silicon polymers

Abstract

A fan frame body with damping structure and a fan thereof. The fan frame body includes a fan frame main body having a first opening, a second opening, a flow way and a base section. The first and second openings are respectively positioned at the upper and lower ends of the fan frame main body. The flow way is disposed between the first and second openings in communication with the first and second openings. The base section is disposed at the second opening. A bearing cup and multiple static blades are perpendicularly disposed on the base section. Two ends of the static blades are respectively connected with the base section and the fan frame main body. Multiple damping structures are annularly disposed on an inner wall of the fan frame main body. The damping structures are raised body structures or recess structures.

Claims

1. A fan frame body with damping structure, comprising a fan frame main body, the fan frame main body having a first opening, a second opening, a flow way and a base section, the first and second openings being respectively positioned at the upper and lower ends of the fan frame main body, the flow way being disposed between the first and second openings in communication with the first and second openings, the base section being disposed at the second opening, a bearing cup and multiple static blades being perpendicularly disposed on the base section, two ends of the static blades being respectively connected with the base section and the fan frame main body, multiple damping structures being annularly disposed on an inner wall of the fan frame main body, the damping structures being raised body structures or recess structures.

2. The fan frame body with damping structure as claimed in claim 1, wherein the fan frame main body has multiple support frames, the support frames being axially overlapped to form the fan frame main body and the damping structures.

3. The fan frame body with damping structure as claimed in claim 2, wherein the support frames include a first support frame and a second support frame, the first opening being formed on an upper side of the first support frame, a third opening being formed on a lower side of the first support frame, the second opening being formed on a lower side of the second support frame, a fourth opening being formed on an upper side of the second support frame, the first and second support frames being made of different materials.

4. The fan frame body with damping structure as claimed in claim 3, wherein the damping structure has a first part and a second part, the first part being formed on the first support frame, the second part being formed on the second support frame corresponding to the first part, the first and second support frames being axially overlapped to form the fan frame main body, the third opening corresponding to the fourth opening, the first and second parts correspondingly forming the damping structure.

5. The fan frame body with damping structure as claimed in claim 3, wherein the support frames further include a third support frame, a fifth opening being formed on an upper side of the third support frame, a sixth opening being formed on a lower side of the third support frame, the first, second and third support frames being made of different materials.

6. The fan frame body with damping structure as claimed in claim 5, wherein the damping structure has a first part, a second part and a third part, the first part being formed on the first support frame, the second part being formed on the second support frame, the third part being formed on the third support frame, an upper section of the third part corresponding to the first part, a lower section of the third part corresponding to the second part, the first, second and third support frames being axially overlapped to form the fan frame main body, the third opening corresponding to the fifth opening, the fourth opening corresponding to the sixth opening, the first, second and third parts correspondingly forming the damping structure.

7. The fan frame body with damping structure as claimed in claim 1, wherein the damping structures have a geometrical form and respectively define a damping structure virtual axis, the damping structure virtual axes of every damping structure being parallel to each other or unparallel to each other, the fan frame main body defining a fan frame main body virtual axis, the fan frame main body virtual axis and the damping structure virtual axes containing an angle.

8. The fan frame body with damping structure as claimed in claim 1, wherein the damping structures are uniformly annularly arranged or non-uniformly annularly arranged.

9. A fan of the fan frame body with damping structure as claimed in claim 1, comprising:

a stator assembly having multiple silicon steel sheets and multiple windings wound around the silicon steel sheets, the stator assembly being fitted around the bearing cup;

a rotor assembly having a central shaft, a hub and a permanent magnet, the central shaft being perpendicularly assembled with the hub, multiple fan blades being annularly disposed on outer circumference of the hub, the permanent magnet being disposed on inner circumference of the hub; and

a bearing disposed in the bearing cup, the central shaft being rotatably disposed in the bearing.

10. A fan of the fan frame body with damping structure as claimed in claim 2, comprising:

a stator assembly having multiple silicon steel sheets and multiple windings wound around the silicon steel sheets, the stator assembly being fitted around the bearing cup;

a rotor assembly having a central shaft, a hub and a permanent magnet, the central shaft being perpendicularly assembled with the hub, multiple fan blades being annularly disposed on outer circumference of the hub, the permanent magnet being disposed on inner circumference of the hub; and

a bearing disposed in the bearing cup, the central shaft being rotatably disposed in the bearing.

11. A fan of the fan frame body with damping structure as claimed in claim 3, comprising:

a stator assembly having multiple silicon steel sheets and multiple windings wound around the silicon steel sheets, the stator assembly being fitted around the bearing cup;

a rotor assembly having a central shaft, a hub and a permanent magnet, the central shaft being perpendicularly assembled with the hub, multiple fan blades being annularly disposed on outer circumference of the hub, the permanent magnet being disposed on inner circumference of the hub; and

a bearing disposed in the bearing cup, the central shaft being rotatably disposed in the bearing.

12. A fan of the fan frame body with damping structure as claimed in claim 4, comprising:

a stator assembly having multiple silicon steel sheets and multiple windings wound around the silicon steel sheets, the stator assembly being fitted around the bearing cup;

a rotor assembly having a central shaft, a hub and a permanent magnet, the central shaft being perpendicularly assembled with the hub, multiple fan blades being annularly disposed on outer circumference of the hub, the permanent magnet being disposed on inner circumference of the hub; and

a bearing disposed in the bearing cup, the central shaft being rotatably disposed in the bearing.

13. A fan of the fan frame body with damping structure as claimed in claim 5, comprising:

a stator assembly having multiple silicon steel sheets and multiple windings wound around the silicon steel sheets, the stator assembly being fitted around the bearing cup;

a rotor assembly having a central shaft, a hub and a permanent magnet, the central shaft being perpendicularly assembled with the hub, multiple fan blades being annularly disposed on outer circumference of the hub, the permanent magnet being disposed on inner circumference of the hub; and

a bearing disposed in the bearing cup, the central shaft being rotatably disposed in the bearing.

14. A fan of the fan frame body with damping structure as claimed in claim 6, comprising:

a stator assembly having multiple silicon steel sheets and multiple windings wound around the silicon steel sheets, the stator assembly being fitted around the bearing cup;

a rotor assembly having a central shaft, a hub and a permanent magnet, the central shaft being perpendicularly assembled with the hub, multiple fan blades being annularly disposed on outer circumference of the hub, the permanent magnet being disposed on inner circumference of the hub; and

a bearing disposed in the bearing cup, the central shaft being rotatably disposed in the bearing.

15. A fan of the fan frame body with damping structure as claimed in claim 7, comprising:

a stator assembly having multiple silicon steel sheets and multiple windings wound around the silicon steel sheets, the stator assembly being fitted around the bearing cup;

a rotor assembly having a central shaft, a hub and a permanent magnet, the central shaft being perpendicularly assembled with the hub, multiple fan blades being annularly disposed on outer circumference of the hub, the permanent magnet being disposed on inner circumference of the hub; and

a bearing disposed in the bearing cup, the central shaft being rotatably disposed in the bearing.

16. A fan of the fan frame body with damping structure as claimed in claim 8, comprising:

a stator assembly having multiple silicon steel sheets and multiple windings wound around the silicon steel sheets, the stator assembly being fitted around the bearing cup;

a rotor assembly having a central shaft, a hub and a permanent magnet, the central shaft being perpendicularly assembled with the hub, multiple fan blades being annularly disposed on outer circumference of the hub, the permanent magnet being disposed on inner circumference of the hub; and

a bearing disposed in the bearing cup, the central shaft being rotatably disposed in the bearing.

17. The fan frame body with damping structure as claimed in claim 1, wherein the vane-shaped fan blades axially extend in a direction reverse to an axial extending direction of the damping structures.