US20140328686A1 - Fan - Google Patents

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Publication number
US20140328686A1
US20140328686A1 US14/264,323 US201414264323A US2014328686A1 US 20140328686 A1 US20140328686 A1 US 20140328686A1 US 201414264323 A US201414264323 A US 201414264323A US 2014328686 A1 US2014328686 A1 US 2014328686A1
Authority
US
United States
Prior art keywords
fan
connection
ring
main body
blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/264,323
Other languages
English (en)
Inventor
Chih-Hua Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hon Hai Precision Industry Co Ltd
Original Assignee
Hon Hai Precision Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hon Hai Precision Industry Co Ltd filed Critical Hon Hai Precision Industry Co Ltd
Assigned to HON HAI PRECISION INDUSTRY CO., LTD. reassignment HON HAI PRECISION INDUSTRY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, CHIH-HUA
Publication of US20140328686A1 publication Critical patent/US20140328686A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • F04D29/36—Blade mountings adjustable
    • F04D29/362—Blade mountings adjustable during rotation
    • F04D29/366—Adjustment by interaction of inertion and lift
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings

Definitions

  • the present disclosure relates to a fan.
  • a plurality of fans is configured to dissipate heat for electronic components.
  • the angle of attack of blades of the fans is constant, when the fans work in a high speed, turbulent flow emerges.
  • FIG. 1 is an exploded, isometric view of an exemplary embodiment of a fan, wherein the fan comprises a hub, a resilient member, and a transmission ring.
  • FIG. 2 is similar to FIG. 1 , but viewed from another perspective.
  • FIG. 3 is an assembled, isometric view of the hub and the resilient member of FIG. 1 .
  • FIG. 4 is an assembled view of the resilient member and the transmission ring of FIG. 1 .
  • FIG. 5 is an assembled, isometric view of FIG. 1 .
  • FIG. 6 is a side elevational view of FIG. 5 .
  • FIGS. 1 and 2 illustrate an exemplary embodiment of a fan.
  • the fan comprises a hub 10 , a resilient member 20 , a transmission ring 30 , a stop ring 40 , a mounting ring 50 , a plurality of connection poles 60 , and a plurality of blades 80 .
  • the hub 10 comprises a columnar main body 12 and a circular end plate 13 formed on a first end of the main body 12 .
  • a plurality of fastening blocks 132 extends from a side of the end plate 13 facing the main body 12 , and surrounds the main body 12 .
  • a plurality of hooks 14 is formed on a second end of the main body 12 .
  • FIG. 3 illustrates that the resilient member 20 is substantially annular.
  • the resilient member 20 comprises a plurality of C-shaped first connection portions 22 in a front side of the resilient member 20 and a plurality of C-shaped second connection portions 23 in a rear side of the resilient member 20 .
  • Each first connection portion 22 is connected between two neighbor second connection portions 23 .
  • the first connection portions 22 of the resilient member 20 are fastened to the fastening blocks 132 of the end plate 13 , respectively.
  • the transmission ring 30 is annular.
  • An annular spline 32 is attached to a front end of the transmission ring 30 .
  • An annular receiving slot 33 is defined in a rear end of the transmission ring 30 .
  • a plurality of abutting blocks 332 is formed in the receiving slot 33 .
  • the transmission ring 30 rotatably encircles the main body 12 .
  • the rear end of the transmission ring 30 abuts against the end plate 13 .
  • the fastening blocks 132 and the resilient member 20 are received in the receiving slot 33 .
  • the second connection portions 23 of the resilient member 20 are fastened to the abutting blocks 332 of the transmission ring 30 , respectively.
  • the stop ring 40 is annular, and encircles the main body 12 .
  • An annular spline 42 is attached to a rear end of the stop ring 40 .
  • a plurality of hooking slots 43 is defined in a front end of the stop ring 40 . The hooks 14 of the hub 10 engage in the hooking slots 43 .
  • the mounting ring 50 is annular, and encircles the main body 12 .
  • the mounting ring 50 is sandwiched between the transmission ring 30 and the stop ring 40 .
  • a plurality of accommodating slots 52 is defined in an inner side of the mounting ring 50 .
  • a plurality of protrusions 53 extends from an outer side of the mounting ring 50 .
  • the protrusions 53 are aligned with the accommodating slots 52 , respectively.
  • Each protrusion 53 axially defines a through hole 532 communicating with the corresponding accommodating slots 52 .
  • connection pole 60 comprises a gear 61 formed on a first end of the connection pole 60 and a pair of resilient latches 63 formed on a second end of the connection pole 60 .
  • the connection poles 60 rotatably extend through the through holes 532 .
  • the second ends of the connection poles 60 extend out of the protrusions 53 .
  • the gears 61 of the connection poles 60 are received in the accommodating slots 52 .
  • the gears 61 mesh with the spline 32 and the spline 42 .
  • a fastening portion 821 extends from a lower surface 82 of each blade 80 .
  • the fastening portion 821 defines a through hole 823 and two opposite latching slots 824 communicating with the through hole 823 .
  • the second ends of the connection poles 60 extend through the through holes 823 of the blades 80 .
  • the latches 63 of each connection pole 60 engage in the latching slots 824 of the corresponding blade 80 .
  • the fastening portions 821 abut against the protrusions 53 , to allow each blade 80 to be rotatably connected to the mounting ring 50 about a center axis 65 of the corresponding connection pole 60 .
  • the center of lift O of each blade 80 is located between a lower end 83 of the blade 80 and the connection pole 60 fastened to the blade 80 .
  • the fan further comprises a motor received in the hub 10 .
  • the motor drives the hub 10 rotating about a center axis 100 of the hub 10 .
  • the blades 80 rotate about the center axis 100 of the hub 10 .
  • the lift of the blades 80 increases, to allow the blades 80 to rotate clockwise about the center axes 65 .
  • the angle of attack a of each blade 80 decreases, so that the efficiency of the fan increases.
  • the connection poles 60 rotate clockwise, to make the gears 61 rotate clockwise.
  • the transmission ring 30 rotates clockwise relative to the hub 10 .
  • the abutting blocks 332 press the second connection portions 23 , to deform the resilient member 20 .
  • the stop ring 40 is hooked by the hooks 14 , such that the stop ring 40 cannot rotate relative to the hub 10 .
  • the mounting ring 50 rotates clockwise relative to the hub 10 , to keep the gears 61 meshing with the spline 42 .
  • the lift of the blades 80 decreases.
  • the resilient member 20 is restored to allow the transmission ring 30 to rotate counter-clockwise relative to the hub 10 .
  • the connection poles 60 rotate counter-clockwise about the center axes 65 .
  • the blades 80 rotate counter-clockwise about the center axes 65 .
  • the angle of attack a of each blade 80 increases, so that the noise of the fan is reduced.
  • the mounting ring 50 rotates counter-clockwise relative to the hub 10 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US14/264,323 2013-05-03 2014-04-29 Fan Abandoned US20140328686A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW102115991A TW201443344A (zh) 2013-05-03 2013-05-03 風扇
TW102115991 2013-05-03

Publications (1)

Publication Number Publication Date
US20140328686A1 true US20140328686A1 (en) 2014-11-06

Family

ID=51841509

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/264,323 Abandoned US20140328686A1 (en) 2013-05-03 2014-04-29 Fan

Country Status (2)

Country Link
US (1) US20140328686A1 (zh)
TW (1) TW201443344A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170167495A1 (en) * 2015-12-14 2017-06-15 Hunter Fan Company Ceiling fan
US11674526B2 (en) 2016-01-22 2023-06-13 Hunter Fan Company Ceiling fan having a dual redundant motor mounting assembly

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1767027A (en) * 1926-06-07 1930-06-24 Farmers Nat Bank Cooling-fan mechanism
US3217808A (en) * 1963-10-01 1965-11-16 Dowty Hydraulic Units Ltd Cooling fans
US3220484A (en) * 1963-04-11 1965-11-30 Dowty Hydraulic Units Ltd Cooling fans
US3395761A (en) * 1965-06-24 1968-08-06 Holzer Walter Fan
US3953149A (en) * 1974-06-17 1976-04-27 General Motors Corporation Engine cooling fan
US4178127A (en) * 1975-08-27 1979-12-11 Zahorecz Zoltan P Variable pitch impeller
US4353680A (en) * 1979-06-19 1982-10-12 Tokyo Shibaura Denki Kabushiki Kaisha Exhaust fan with removable face cover
US5326223A (en) * 1988-07-07 1994-07-05 Speer Stephen R Automatic variable pitch marine propeller with mechanical holding means
US6882074B2 (en) * 2003-09-05 2005-04-19 Sunonwealth Electric Machine Industry Co., Ltd. Axial tube assembly for a motor
US20080175710A1 (en) * 2007-01-18 2008-07-24 Pearce Richard A Fan blade mounting system
US8043056B2 (en) * 2008-02-08 2011-10-25 Sunonwealth Electric Machine Industry Co., Ltd. Self-assembly micro fan

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1767027A (en) * 1926-06-07 1930-06-24 Farmers Nat Bank Cooling-fan mechanism
US3220484A (en) * 1963-04-11 1965-11-30 Dowty Hydraulic Units Ltd Cooling fans
US3217808A (en) * 1963-10-01 1965-11-16 Dowty Hydraulic Units Ltd Cooling fans
US3395761A (en) * 1965-06-24 1968-08-06 Holzer Walter Fan
US3953149A (en) * 1974-06-17 1976-04-27 General Motors Corporation Engine cooling fan
US4178127A (en) * 1975-08-27 1979-12-11 Zahorecz Zoltan P Variable pitch impeller
US4353680A (en) * 1979-06-19 1982-10-12 Tokyo Shibaura Denki Kabushiki Kaisha Exhaust fan with removable face cover
US5326223A (en) * 1988-07-07 1994-07-05 Speer Stephen R Automatic variable pitch marine propeller with mechanical holding means
US6882074B2 (en) * 2003-09-05 2005-04-19 Sunonwealth Electric Machine Industry Co., Ltd. Axial tube assembly for a motor
US20080175710A1 (en) * 2007-01-18 2008-07-24 Pearce Richard A Fan blade mounting system
US8043056B2 (en) * 2008-02-08 2011-10-25 Sunonwealth Electric Machine Industry Co., Ltd. Self-assembly micro fan

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170167495A1 (en) * 2015-12-14 2017-06-15 Hunter Fan Company Ceiling fan
US10648485B2 (en) * 2015-12-14 2020-05-12 Hunter Fan Company Ceiling fan
US11306740B2 (en) 2015-12-14 2022-04-19 Hunter Fan Company Ceiling fan bearing system
US11353044B2 (en) * 2015-12-14 2022-06-07 Hunter Fan Company Ceiling fan
US11454253B2 (en) 2015-12-14 2022-09-27 Hunter Fan Company Ceiling fan motor housing with wiring harness
US11454252B2 (en) 2015-12-14 2022-09-27 Hunter Fan Company Ceiling fan motor housing with magnet seat
US11473595B2 (en) 2015-12-14 2022-10-18 Hunter Fan Company Ceiling fan motor adapter assembly
US11480195B2 (en) 2015-12-14 2022-10-25 Hunter Fan Company Ceiling fan bearing system
US11592035B2 (en) 2015-12-14 2023-02-28 Hunter Fan Company Ceiling fan bearing system
US11674526B2 (en) 2016-01-22 2023-06-13 Hunter Fan Company Ceiling fan having a dual redundant motor mounting assembly

Also Published As

Publication number Publication date
TW201443344A (zh) 2014-11-16

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HON HAI PRECISION INDUSTRY CO., LTD., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHEN, CHIH-HUA;REEL/FRAME:032777/0114

Effective date: 20140428

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION