US20110103957A1 - Axial fan - Google Patents

Axial fan Download PDF

Info

Publication number
US20110103957A1
US20110103957A1 US12/647,518 US64751809A US2011103957A1 US 20110103957 A1 US20110103957 A1 US 20110103957A1 US 64751809 A US64751809 A US 64751809A US 2011103957 A1 US2011103957 A1 US 2011103957A1
Authority
US
United States
Prior art keywords
fan
hub
axial fan
slot
mounting
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
US12/647,518
Inventor
Xian-Xiu Tang
Zhen-Xing Ye
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.)
Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
Original Assignee
Hongfujin Precision Industry Shenzhen Co Ltd
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 Hongfujin Precision Industry Shenzhen Co Ltd, Hon Hai Precision Industry Co Ltd filed Critical Hongfujin Precision Industry Shenzhen Co Ltd
Assigned to HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD. reassignment HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TANG, XIAN-XIU, YE, Zhen-xing
Publication of US20110103957A1 publication Critical patent/US20110103957A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/467—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing gases, e.g. air
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the present disclosure relates generally to fans, and more particularly to an axial fan for dissipating heat from heat-generating components such as electronic components of computers.
  • Axial fans are commonly used in combination with heat sinks for cooling electronic components, such as CPUs of computers.
  • the heat sink is arranged on the electronic component to absorb heat therefrom, while the axial fan is arranged on the heat sink to produce an airflow flowing through the heat sink to take the heat away.
  • the axial fan includes a stator and an impeller being rotatable relative to the stator.
  • the impeller includes a hub and a plurality of fan blades extending outwardly therefrom.
  • the stator is received in the hub.
  • a permanent magnet is attached to an inner surface of the hub and surrounds the stator.
  • the stator includes a stator core with coils wound therearound. When an electrical current is supplied to the coils, the fan blades are driven by the stator to rotate, thereby producing the airflow.
  • an internal structure and a heat dissipation requirement of the computer are considered in selecting the axial fan.
  • Some computers may require an axial fan which can produce an airflow having a relatively large air volume, while some other computers may require an axial fan which can produce an airflow having a relatively large air pressure.
  • the air volume and the air pressure are relevant to an angle defined between each of the fan blades and a central axis of the axial fan. If the angle is relatively large, a relatively large air pressure is obtained. If the angle is relatively small, a relatively large air volume is obtained.
  • the current axial fan generally has its fan blades integrally formed with its hub.
  • the angle between each of the fan blades and the central axis of the axial fan is fixed and cannot be regulated or changed according to requirement.
  • the axial fan cannot provide an air pressure and an air volume both satisfactory for all kinds of computers.
  • FIG. 1 is an isometric view of an axial fan according to an exemplary embodiment of the present disclosure.
  • FIG. 2 is an isometric, exploded view of an impeller of the axial fan of FIG. 1 .
  • FIG. 3 is an isometric, assembled view of the impeller of FIG. 2 .
  • FIG. 1 shows an axial fan 100 according to an exemplary embodiment of the present disclosure.
  • the axial fan 100 includes a fan frame 10 , a stator (not shown) and an impeller 20 received in the fan frame 10 .
  • the fan frame 10 defines a receiving space 19 therein for receiving the stator and the impeller 20 .
  • An air inlet 14 is formed at a top of the fan frame 10
  • an air outlet 16 is formed at a bottom of the fan frame 10 opposite to the air inlet 14 .
  • the fan frame 10 includes an annular ring 11 , four supporting poles 12 extending upwardly from the annular ring 11 and spaced evenly from each other along a circumferential direction of the fan frame 10 , a mounting base 13 disposed at a center of the air inlet 14 , and four connecting ribs 15 connecting the mounting base 13 with top ends of the supporting poles 12 .
  • the stator is received in the receiving space 19 and mounted to the mounting base 13 .
  • the impeller 20 is mounted in the receiving space 19 of the fan frame 10 and disposed around the stator.
  • the impeller 20 includes a hub 22 , a plurality of fan blades 24 extending radially and outwardly from the hub 22 , and a shaft 28 extending upwardly from the hub 22 .
  • the hub 22 includes a circular base plate 222 and a cylindrical sidewall 224 extending upwardly from an outer periphery of the base plate 222 , wherein the shaft 28 extends perpendicularly and upwardly from the base plate 222 of the hub 22 towards the mounting base 13 of the fan frame 10 , and the fan blades 24 extend radially and outwardly from the sidewall 224 of the hub 22 .
  • the base plate 222 is located in a center of the air outlet 16 of the fan frame 10 .
  • the impeller 20 has three fan blades 24 .
  • a plurality of rods 228 is formed on an inner surface of the sidewall 224 along an extension direction of a central axis X of the axial fan 100 .
  • the rods 228 are evenly spaced from each other along a circumferential direction of the inner surface of the sidewall 224 .
  • the three fan blades 24 are detachably mounted to the sidewall 224 of the hub 22 .
  • Three pairs of mounting holes 226 are defined through the sidewall 224 of the hub 22 for mounting the three fan blades 24 to the hub 22 via fasteners 30 such as screws.
  • a mounting portion 25 is formed at an inner edge of each of the fan blades 24 for mounting the fan blades 24 to the hub 22 .
  • Each of the fan blades 24 is mounted to the hub 22 through the mounting portion 25 .
  • a slot 252 is defined in the mounting portion 25 .
  • the mounting portion 25 includes a pair of mounting ears 250 provided symmetrically at two opposite sides of the inner edge of each fan blade 24 .
  • the slot 252 is divided into two arc-shaped sections 252 a , 252 b .
  • the two sections 252 a , 252 b are provided in the two mounting ears 250 , respectively.
  • the two sections 252 a , 252 b of the slot 252 of each mounting portion 25 are located on an imaginary circle and have a common center of circle.
  • Each fastener 30 has an outer diameter substantially the same as a width of the slot 252 .
  • each fan blade 24 In assembly, the two sections 252 a , 252 b of the slot 252 of the mounting portion 25 of each fan blade 24 are aligned with a pair of mounting holes 226 of the hub 22 .
  • the mounting ears 250 are fittingly abutted on the outer surface of the sidewall 224 of the hub 22 .
  • the fasteners 30 extend through the two sections 252 a , 252 b of the slot 252 and the mounting holes 226 of the hub 22 to fix the fan blades 24 on the hub 22 .
  • Each of the fan blades 24 is mounted to the hub 22 in an inclined manner relative to the central axis X of the axial fan 100 .
  • each fan blade 24 is inclined from a bottom-to-top direction towards a front fan blade 24 along a rotation direction of the impeller 20 .
  • an angle ⁇ is formed between each fan blade 24 and the central axis X of the axial fan 100 .
  • the fasteners 30 are firstly loosened.
  • the fan blades 24 are then rotated relative to the hub 22 , and the fasteners 30 slide in the two sections 252 a , 252 b of the slot 252 of the mounting portions 25 of the fan blades 24 .
  • the angle ⁇ between each fan blade 24 and the central axis X of the axial fan 100 can be easily regulated and changed according to need, and an air volume and an air pressure provided by the axial fan 100 are accordingly regulated and changed.
  • the axial fan 100 can be applied to all kinds of computers.
  • the permanent magnet When a permanent magnet (not shown) is mounted to the inner surface of the sidewall 224 of the hub 22 , the permanent magnet is kept a distance from the inner surface of the sidewall 224 by the rods 228 provided on the inner surface of the sidewall 224 , thereby avoiding an interference between the permanent magnet and the fasteners 30 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

An axial fan includes an impeller. The impeller includes a hub and a plurality fan blades connected with the hub. Each fan blade includes a mounting portion provided at an inner edge thereof. The mounting portion defines a slot therein. A fastener extends through the slot of the mounting portion to fix each fan blade to the hub. An angle is defined between each fan blade and a central axis of the axial fan. The angle is capable of being regulated when each fan blade is rotated relative to the hub to cause the fastener to slide in the slot of the mounting portion.

Description

    BACKGROUND
  • 1. Technical Field
  • The present disclosure relates generally to fans, and more particularly to an axial fan for dissipating heat from heat-generating components such as electronic components of computers.
  • 2. Description of Related Art
  • Axial fans are commonly used in combination with heat sinks for cooling electronic components, such as CPUs of computers. Normally, the heat sink is arranged on the electronic component to absorb heat therefrom, while the axial fan is arranged on the heat sink to produce an airflow flowing through the heat sink to take the heat away.
  • Generally, the axial fan includes a stator and an impeller being rotatable relative to the stator. The impeller includes a hub and a plurality of fan blades extending outwardly therefrom. The stator is received in the hub. A permanent magnet is attached to an inner surface of the hub and surrounds the stator. The stator includes a stator core with coils wound therearound. When an electrical current is supplied to the coils, the fan blades are driven by the stator to rotate, thereby producing the airflow.
  • In selecting an axial fan for a computer, an internal structure and a heat dissipation requirement of the computer are considered in selecting the axial fan. Some computers may require an axial fan which can produce an airflow having a relatively large air volume, while some other computers may require an axial fan which can produce an airflow having a relatively large air pressure. The air volume and the air pressure are relevant to an angle defined between each of the fan blades and a central axis of the axial fan. If the angle is relatively large, a relatively large air pressure is obtained. If the angle is relatively small, a relatively large air volume is obtained.
  • The current axial fan generally has its fan blades integrally formed with its hub. Thus, the angle between each of the fan blades and the central axis of the axial fan is fixed and cannot be regulated or changed according to requirement. As a result, the axial fan cannot provide an air pressure and an air volume both satisfactory for all kinds of computers.
  • For the foregoing reasons, there is a need in the art for an axial fan which can overcome the above described shortcoming.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is an isometric view of an axial fan according to an exemplary embodiment of the present disclosure.
  • FIG. 2 is an isometric, exploded view of an impeller of the axial fan of FIG. 1.
  • FIG. 3 is an isometric, assembled view of the impeller of FIG. 2.
    •  DETAILED DESCRIPTION
  • Reference will now be made to the drawing figures to describe the present axial fan in detail.
  • FIG. 1 shows an axial fan 100 according to an exemplary embodiment of the present disclosure. The axial fan 100 includes a fan frame 10, a stator (not shown) and an impeller 20 received in the fan frame 10.
  • The fan frame 10 defines a receiving space 19 therein for receiving the stator and the impeller 20. An air inlet 14 is formed at a top of the fan frame 10, and an air outlet 16 is formed at a bottom of the fan frame 10 opposite to the air inlet 14. The fan frame 10 includes an annular ring 11, four supporting poles 12 extending upwardly from the annular ring 11 and spaced evenly from each other along a circumferential direction of the fan frame 10, a mounting base 13 disposed at a center of the air inlet 14, and four connecting ribs 15 connecting the mounting base 13 with top ends of the supporting poles 12. The stator is received in the receiving space 19 and mounted to the mounting base 13. The impeller 20 is mounted in the receiving space 19 of the fan frame 10 and disposed around the stator.
  • Referring to FIGS. 2 and 3, the impeller 20 includes a hub 22, a plurality of fan blades 24 extending radially and outwardly from the hub 22, and a shaft 28 extending upwardly from the hub 22. The hub 22 includes a circular base plate 222 and a cylindrical sidewall 224 extending upwardly from an outer periphery of the base plate 222, wherein the shaft 28 extends perpendicularly and upwardly from the base plate 222 of the hub 22 towards the mounting base 13 of the fan frame 10, and the fan blades 24 extend radially and outwardly from the sidewall 224 of the hub 22. The base plate 222 is located in a center of the air outlet 16 of the fan frame 10. In the illustrated embodiment, the impeller 20 has three fan blades 24. A plurality of rods 228 is formed on an inner surface of the sidewall 224 along an extension direction of a central axis X of the axial fan 100. The rods 228 are evenly spaced from each other along a circumferential direction of the inner surface of the sidewall 224.
  • The three fan blades 24 are detachably mounted to the sidewall 224 of the hub 22. Three pairs of mounting holes 226 are defined through the sidewall 224 of the hub 22 for mounting the three fan blades 24 to the hub 22 via fasteners 30 such as screws. A mounting portion 25 is formed at an inner edge of each of the fan blades 24 for mounting the fan blades 24 to the hub 22. Each of the fan blades 24 is mounted to the hub 22 through the mounting portion 25. A slot 252 is defined in the mounting portion 25. The mounting portion 25 includes a pair of mounting ears 250 provided symmetrically at two opposite sides of the inner edge of each fan blade 24. The slot 252 is divided into two arc-shaped sections 252 a, 252 b. The two sections 252 a, 252 b are provided in the two mounting ears 250, respectively. The two sections 252 a, 252 b of the slot 252 of each mounting portion 25 are located on an imaginary circle and have a common center of circle. Each fastener 30 has an outer diameter substantially the same as a width of the slot 252.
  • In assembly, the two sections 252 a, 252 b of the slot 252 of the mounting portion 25 of each fan blade 24 are aligned with a pair of mounting holes 226 of the hub 22. The mounting ears 250 are fittingly abutted on the outer surface of the sidewall 224 of the hub 22. The fasteners 30 extend through the two sections 252 a, 252 b of the slot 252 and the mounting holes 226 of the hub 22 to fix the fan blades 24 on the hub 22. Each of the fan blades 24 is mounted to the hub 22 in an inclined manner relative to the central axis X of the axial fan 100. Particularly, each fan blade 24 is inclined from a bottom-to-top direction towards a front fan blade 24 along a rotation direction of the impeller 20. Thus, an angle θ is formed between each fan blade 24 and the central axis X of the axial fan 100.
  • If an air volume or an air pressure provided by the axial fan 100 is required to be regulated, the fasteners 30 are firstly loosened. The fan blades 24 are then rotated relative to the hub 22, and the fasteners 30 slide in the two sections 252 a, 252 b of the slot 252 of the mounting portions 25 of the fan blades 24. Thus, the angle θ between each fan blade 24 and the central axis X of the axial fan 100 can be easily regulated and changed according to need, and an air volume and an air pressure provided by the axial fan 100 are accordingly regulated and changed. Particularly, when the fan blades 24 are rotated clockwise relative to the hub 22, the angle θ between each fan blade 24 and the central axis X of the axial fan 100 is increased, and an enhanced air pressure is provided by the axial fan 100. When the fan blades 24 are rotated counter-clockwise relative to the hub 22, the angle θ between each fan blade 24 and the central axis X of the axial fan 100 is reduced, and an enhanced air volume is provided by the axial fan 100. As a result, the axial fan 100 can be applied to all kinds of computers.
  • When a permanent magnet (not shown) is mounted to the inner surface of the sidewall 224 of the hub 22, the permanent magnet is kept a distance from the inner surface of the sidewall 224 by the rods 228 provided on the inner surface of the sidewall 224, thereby avoiding an interference between the permanent magnet and the fasteners 30.
  • It is to be understood, however, that even though numerous characteristics and advantages of embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiment, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims (12)

1. An axial fan, comprising:
an impeller comprising a hub and a plurality fan blades connected with the hub, each fan blade comprising a mounting portion provided at an inner edge thereof, the mounting portion defining a slot therein; and
a fastener extending through the slot of the mounting portion to fix each fan blade to the hub, an angle being defined between each fan blade and a central axis of the axial fan, the angle being capable of being regulated when each fan blade is rotated relative to the hub to cause the fastener to slide in the slot of the mounting portion.
2. The axial fan of claim 1, wherein the mounting portion comprises two mounting ears symmetrically disposed at two opposite sides of the inner edge of the fan blade, respectively, the slot being divided into two sections, and the two sections are provided in the two mounting ears, respectively.
3. The axial fan of claim 2, wherein the two sections of the slot each are arc-shaped.
4. The axial fan of claim 3, wherein the two sections of the slot in the mounting portion of each fan blade are located on an imaginary circle and have a common center of circle.
5. The axial fan of claim 2, wherein the hub comprises a base plate and a sidewall extending perpendicularly from an outer periphery of the base plate, and the mounting ears are fittingly abutted on an outer surface of the sidewall of the hub.
6. The axial fan of claim 5, wherein a plurality of rods is formed on an inner surface of the sidewall along the central axis of the axial fan.
7. The axial fan of claim 1, wherein a mounting hole is defined through the hub corresponding to the slot, and the fastener extends through the slot and the mounting hole to fix each fan blade on the hub.
8. The axial fan of claim 1, wherein the slot comprises at least an arc-shaped section.
9. The axial fan of claim 1, wherein the fastener is a screw.
10. The axial fan of claim 1, further comprising a fan frame, the fan frame comprising an annular ring, a plurality of supporting poles extending from the annular ring, a mounting base disposed above the annular ring, and a plurality of connecting ribs connecting the mounting base with free ends of the supporting poles.
11. The axial fan of claim 10, wherein an air inlet is formed at a top of the fan frame, an air outlet is formed at a bottom of the fan frame opposite to the air inlet, and the mounting base is disposed at a center of the air inlet.
12. The axial fan of claim 11, wherein the impeller is mounted in the fan frame and coupled to the mounting base.
US12/647,518 2009-10-29 2009-12-27 Axial fan Abandoned US20110103957A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910309027.8A CN102052333A (en) 2009-10-29 2009-10-29 Radiator fan
CN200910309027.8 2009-10-29

Publications (1)

Publication Number Publication Date
US20110103957A1 true US20110103957A1 (en) 2011-05-05

Family

ID=43925633

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/647,518 Abandoned US20110103957A1 (en) 2009-10-29 2009-12-27 Axial fan

Country Status (2)

Country Link
US (1) US20110103957A1 (en)
CN (1) CN102052333A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110206520A1 (en) * 2010-02-22 2011-08-25 Asia Vital Components Co., Ltd. Combination fan propeller structure
CN102943775A (en) * 2012-11-16 2013-02-27 河南省法斯特散热器有限公司 Adjustable fan
CN103206392A (en) * 2013-04-24 2013-07-17 浙江钜联风能机械有限公司 Blade-adjustable ventilating machine
CN104066306A (en) * 2014-06-09 2014-09-24 华为技术有限公司 Heat dissipation device and communication product
KR101550254B1 (en) 2014-06-26 2015-09-04 한국서부발전 주식회사 Agitator for Desulfurization Equipment
USD808003S1 (en) * 2015-01-21 2018-01-16 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator fan for a ventilation system
CN109026837A (en) * 2018-10-16 2018-12-18 王永挺 A kind of exhaust fan and its fan leaf
CN113048487A (en) * 2021-04-07 2021-06-29 无锡市华凌环保设备有限公司 Composite material glass fiber reinforced plastic incineration waste gas purification device and waste gas purification method
US11333367B2 (en) 2018-05-09 2022-05-17 Trane International Inc. HVACR system including multi-positional and multi-use plenum fans
US11863049B1 (en) * 2023-08-02 2024-01-02 Dongliang Tang Hollow direct-current brushless motor and fan

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104100567B (en) * 2013-04-10 2016-08-31 国基电子（上海）有限公司 Radiator fan
GB2551719A (en) * 2016-06-27 2018-01-03 Truflo Air Movement Ltd Improvements in and relating to a fan assembly
CN106194830B (en) * 2016-08-31 2018-09-28 湖南联诚轨道装备有限公司 A kind of axial flow fan vane wheel of adjustable blade burner
CN107806426B (en) * 2016-09-08 2019-04-09 伊腾科技有限公司 The ceiling fan of adjustable fan blade angles
CN107482879B (en) * 2017-08-18 2019-09-03 重庆路格科技有限公司 The heat dissipating method of switch power module
CN108294419A (en) * 2018-05-14 2018-07-20 佛山市奥耶克思机械设备有限公司 A kind of rotatable no umbrella cover umbrella of wear-type
CN109372796B (en) * 2018-10-11 2020-06-26 山东劳动职业技术学院（山东劳动技师学院） Radiator fan for power distribution cabinet
CN111577634A (en) * 2019-11-25 2020-08-25 章丽 Computer fan equipment with anti-return
CN113107899B (en) * 2021-06-15 2021-11-02 南通安泰风机有限公司 Cooling fan for high-power variable frequency motor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US571500A (en) * 1896-11-17 Apparatus for distributing air
US3085632A (en) * 1959-12-08 1963-04-16 Ametek Inc Fan
US4139330A (en) * 1977-04-14 1979-02-13 Buffalo Forge Company Adjustable vane centrifugal pump impeller construction
US4610600A (en) * 1985-06-10 1986-09-09 Industrial Air, Inc. Adjustable-pitch axial fan wheel
US20060176668A1 (en) * 2003-12-26 2006-08-10 Nidec Corporation Heat Sink Fan and Method for Manufacturing Heat Sink That Is Used for the Heat Sink Fan
USD561709S1 (en) * 2005-06-06 2008-02-12 Sanyo Denki Co., Ltd. Fan
US20080156461A1 (en) * 2006-12-28 2008-07-03 Nidec Corporation Heat sink fan
US7442010B2 (en) * 2004-06-25 2008-10-28 Ebm-Papst Mulfingen Gmbh & Co. Kg Impeller, in particular for an axial fan

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US571500A (en) * 1896-11-17 Apparatus for distributing air
US3085632A (en) * 1959-12-08 1963-04-16 Ametek Inc Fan
US4139330A (en) * 1977-04-14 1979-02-13 Buffalo Forge Company Adjustable vane centrifugal pump impeller construction
US4610600A (en) * 1985-06-10 1986-09-09 Industrial Air, Inc. Adjustable-pitch axial fan wheel
US20060176668A1 (en) * 2003-12-26 2006-08-10 Nidec Corporation Heat Sink Fan and Method for Manufacturing Heat Sink That Is Used for the Heat Sink Fan
US7442010B2 (en) * 2004-06-25 2008-10-28 Ebm-Papst Mulfingen Gmbh & Co. Kg Impeller, in particular for an axial fan
USD561709S1 (en) * 2005-06-06 2008-02-12 Sanyo Denki Co., Ltd. Fan
US20080156461A1 (en) * 2006-12-28 2008-07-03 Nidec Corporation Heat sink fan

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110206520A1 (en) * 2010-02-22 2011-08-25 Asia Vital Components Co., Ltd. Combination fan propeller structure
US8465260B2 (en) * 2010-02-22 2013-06-18 Beijing AVC Technology Research Center Co., Ltd. Combination fan propeller structure
CN102943775A (en) * 2012-11-16 2013-02-27 河南省法斯特散热器有限公司 Adjustable fan
CN103206392A (en) * 2013-04-24 2013-07-17 浙江钜联风能机械有限公司 Blade-adjustable ventilating machine
CN104066306A (en) * 2014-06-09 2014-09-24 华为技术有限公司 Heat dissipation device and communication product
KR101550254B1 (en) 2014-06-26 2015-09-04 한국서부발전 주식회사 Agitator for Desulfurization Equipment
USD808003S1 (en) * 2015-01-21 2018-01-16 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator fan for a ventilation system
US11333367B2 (en) 2018-05-09 2022-05-17 Trane International Inc. HVACR system including multi-positional and multi-use plenum fans
CN109026837A (en) * 2018-10-16 2018-12-18 王永挺 A kind of exhaust fan and its fan leaf
CN113048487A (en) * 2021-04-07 2021-06-29 无锡市华凌环保设备有限公司 Composite material glass fiber reinforced plastic incineration waste gas purification device and waste gas purification method
US11863049B1 (en) * 2023-08-02 2024-01-02 Dongliang Tang Hollow direct-current brushless motor and fan

Also Published As

Publication number Publication date
CN102052333A (en) 2011-05-11

Similar Documents

Publication Publication Date Title
US20110103957A1 (en) Axial fan
US8348594B2 (en) Centrifugal fan
US7443073B2 (en) Electric fan
US7532472B2 (en) Heat dissipation device
US7063510B2 (en) Centrifugal fan
US20070080604A1 (en) Electric fan
US8508093B2 (en) Heat dissipation fan with magnet ring of varying thickness
US7946804B2 (en) Axial fan unit having reduced noise generation
US8579609B2 (en) Fan and inner rotor motor thereof
US8267158B2 (en) Thermal module
US8550781B2 (en) Heat dissipation fan and rotor thereof
JPWO2007043119A1 (en) Fan device
US20090290307A1 (en) Centrifugal blower and electronic device incorporating the same
US20120308416A1 (en) Cooling fan and rotor thereof
US20100003131A1 (en) Axial fan
US7864525B2 (en) Portable electronic device incorporating centrifugal blower
US20090053053A1 (en) Blower
US20070264123A1 (en) Counter-rotating fan
US20120160462A1 (en) Heat dissipation device
US7778032B2 (en) Fan impeller and heat dissipating device incorporating the same
TWI509158B (en) Centrifugal cooling fan
US10498194B2 (en) Heat dissipating fan having a central tube having an annular plate forming a stopping portion and a bearing unit having a bearing and an oil seal comprising a single member
JP5316665B2 (en) Fan device
US20100310391A1 (en) Heat dissipation apparatus
US20120183396A1 (en) Fan module with toolless fastener

Legal Events

Date Code Title Description
AS Assignment

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

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TANG, XIAN-XIU;YE, ZHEN-XING;REEL/FRAME:023704/0697

Effective date: 20091217

Owner name: HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TANG, XIAN-XIU;YE, ZHEN-XING;REEL/FRAME:023704/0697

Effective date: 20091217

STCB Information on status: application discontinuation

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