US20170218972A1 - Axial-flow air blower fan blades - Google Patents

Axial-flow air blower fan blades Download PDF

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Publication number
US20170218972A1
US20170218972A1 US15/493,178 US201715493178A US2017218972A1 US 20170218972 A1 US20170218972 A1 US 20170218972A1 US 201715493178 A US201715493178 A US 201715493178A US 2017218972 A1 US2017218972 A1 US 2017218972A1
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US
United States
Prior art keywords
blades
blade portion
hub
axial
air blower
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
US15/493,178
Inventor
Yunjie Shangguan
Li Luo
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.)
Changzhou Globe Co Ltd
Original Assignee
Changzhou Globe 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 Changzhou Globe Co Ltd filed Critical Changzhou Globe Co Ltd
Assigned to CHANGZHOU GLOBE CO., LTD. reassignment CHANGZHOU GLOBE CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LUO, LI, SHANGGUAN, Yunjie
Publication of US20170218972A1 publication Critical patent/US20170218972A1/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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
    • 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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • 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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/329—Details of the hub
    • 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
    • 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
    • F04D29/38—Blades
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers

Definitions

  • the present application relates to the field of air blower technology, and in particular relates to an axial-flow air blower's fan blades.
  • blades and blade hub of an axial-flow air blower are of separate type, and need to be assembled by workers.
  • the disadvantages are poor concentricity, low wind speed, low strength, and loud noise.
  • the diameter of the fan, the number of blades, and the number of guide blades do not reach a reasonable ratio.
  • the shortcomings are that wind speed is low, machine's current is high, fan vibration is vigorous, and the gap between the fan blades and the fan housing is large. This does not facilitate input air volume, and results in small output air volume and loud noise.
  • the technical problem to be solved is to provide an axial-flow air blower with fan blades having simple and reasonable structure.
  • the blades and the hub are integrated. This advantageously improves the concentricity and strength of the blades, increases air volume, and reduces noise.
  • a reasonable number of blades and fan diameter together with a reasonable number of guide blades can improve efficiency and wind speed.
  • an axial-flow air blower's fan blades which may include a blade portion, and a guide blade portion provided behind the blade portion, the guide blade portion having five guide blades, the blade portion having a hub and a plurality of blades provided on the hub, the blades and the hub being integrated, wherein there are twelve blades, and an outer circumference defined by outer edges of the twelve blades has a diameter of 84 mm.
  • the hub has a diameter of 40 mm.
  • the guide blade portion may further include a central cylinder, one end of each guide blade being fixed to the center cylinder and another end being fixed to an inner wall of an outer cylinder of the axial-flow air blower.
  • the beneficial effect of the axial-flow air blower fan blades of the present application is that it has a simple and reasonable structure.
  • the blades and the hub are integrated so as to facilitate improvement of concentricity and strength of the blades, increase air volume, and reduce noise.
  • a reasonable number of blades and fan diameter together with a reasonable number of guide blades can improve efficiency and wind speed.
  • FIG. 1 is a schematic view of the structure of a blade portion
  • FIG. 2 is a schematic view of the structure of a guide blade portion
  • FIG. 3 is a schematic view of the structure of a blade
  • FIG. 4 is a cross--sectional view of the blade taken along line E-E of FIG. 3 ;
  • FIG. 5 is a cross-sectional view of the blade taken along line H--H of FIG. 3 .
  • an embodiment of the axial-flow air blower fan blades of the present application may include a blade portion, and a guide blade portion provided behind the blade portion.
  • the guide blade portion may include five guide blades 1 .
  • the blade portion may include a hub 2 and a plurality of blades 3 provided on the hub 2 .
  • the blades 3 and the hub 2 can be integrated. This can advantageously improve the concentricity and strength of the blades, increase air flow, and reduce noise.
  • the number of the blades 3 can be twelve.
  • An outer circumference defined by the outer edges of the twelve blades 3 may have a diameter of 84 mm.
  • the diameter of the hub 2 is 40 mm.
  • the guide blade portion may further include a central cylinder. One end of each guide blade may be fixed to the center cylinder and another end may be fixed to an inner wall of an outer cylinder of the axial-flow air blower.
  • the beneficial effect of the axial-flow air blower fan blade of the present application is that it has a simple and reasonable structure.
  • the integration of the blades and the hub advantageously improves the concentricity and strength of the blades, increases air volume, and reduces noise.
  • a reasonable number of blades and fan diameter together with a reasonable number of guide blades can improve efficiency and wind speed.

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

Abstract

An axial-flow air blower's fan blades may include a blade portion, and a guide blade portion provided behind the blade portion. The guide blade portion has five guide blades, and the blade portion has a hub and a plurality of blades provided on the hub. The blades and the hub are integrated. There are twelve blades, and an outer circumference defined by the outer edges of the twelve blades has a diameter of 84 mm. The structure is simple and reasonable. The integration of the blades and hub improves concentricity and strength of the blades, increases air volume, and reduces noise. A reasonable number of blades and fan diameter together with a reasonable number of guide blades can improve efficiency and wind speed.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • The present application is a Continuation Application of PCT application No. PCT/CN2015/084526 filed on Jul. 20, 2015, which claims the benefit of Chinese Utility Model Application No. 201420616868.X filed on Oct. 24, 2014. All the above are hereby incorporated by reference.
    • FIELD OF THE TECHNOLOGY
  • The present application relates to the field of air blower technology, and in particular relates to an axial-flow air blower's fan blades.
    • BACKGROUND
  • In existing market, blades and blade hub of an axial-flow air blower are of separate type, and need to be assembled by workers. The disadvantages are poor concentricity, low wind speed, low strength, and loud noise. In the market, the diameter of the fan, the number of blades, and the number of guide blades do not reach a reasonable ratio. The shortcomings are that wind speed is low, machine's current is high, fan vibration is vigorous, and the gap between the fan blades and the fan housing is large. This does not facilitate input air volume, and results in small output air volume and loud noise.
    • SUMMARY
  • The technical problem to be solved is to provide an axial-flow air blower with fan blades having simple and reasonable structure. The blades and the hub are integrated. This advantageously improves the concentricity and strength of the blades, increases air volume, and reduces noise. A reasonable number of blades and fan diameter together with a reasonable number of guide blades can improve efficiency and wind speed.
  • To solve the above-mentioned technical problem, the technical solution is to provide an axial-flow air blower's fan blades which may include a blade portion, and a guide blade portion provided behind the blade portion, the guide blade portion having five guide blades, the blade portion having a hub and a plurality of blades provided on the hub, the blades and the hub being integrated, wherein there are twelve blades, and an outer circumference defined by outer edges of the twelve blades has a diameter of 84 mm.
  • In a preferred embodiment, the hub has a diameter of 40 mm.
  • In a preferred embodiment, the guide blade portion may further include a central cylinder, one end of each guide blade being fixed to the center cylinder and another end being fixed to an inner wall of an outer cylinder of the axial-flow air blower.
  • The beneficial effect of the axial-flow air blower fan blades of the present application is that it has a simple and reasonable structure. The blades and the hub are integrated so as to facilitate improvement of concentricity and strength of the blades, increase air volume, and reduce noise. A reasonable number of blades and fan diameter together with a reasonable number of guide blades can improve efficiency and wind speed.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • In order to more clearly illustrate the technical solution provided by the embodiments of the axial-flow air blower's fan blades of the present application, the drawings to be used in the description of the embodiments will be briefly described below. It will be apparent that the drawings mentioned in the following description are merely some implementations of the axial--flow air blower's fan blades. Without making any creative effort, a person skilled in the art may derive other drawings from the drawings in the present application, wherein:
  • FIG. 1 is a schematic view of the structure of a blade portion;
  • FIG. 2 is a schematic view of the structure of a guide blade portion;
  • FIG. 3 is a schematic view of the structure of a blade;
  • FIG. 4 is a cross--sectional view of the blade taken along line E-E of FIG. 3; and
  • FIG. 5 is a cross-sectional view of the blade taken along line H--H of FIG. 3.
    •
  • The reference numerals in the drawings and their designating parts are as follows: 1-guide blades, 2-hub, 3-blades.
    • DETAILED DESCRIPTION
  • The technical solution provided by the embodiments of the axial-flow air blower fan blades of the present application will be described clearly and completely below. It is apparent that the described embodiments are only some embodiments of the axial-flow air blower's fan blades, and not all of the embodiments. All other embodiments obtained by an ordinary technical person skilled in the art, without making any creative effort, are within the scope of protection of the axial-flow air blower fan blades of the present application.
  • Referring to FIGS. 1 to 5, an embodiment of the axial-flow air blower fan blades of the present application may include a blade portion, and a guide blade portion provided behind the blade portion. The guide blade portion may include five guide blades 1. The blade portion may include a hub 2 and a plurality of blades 3 provided on the hub 2. The blades 3 and the hub 2 can be integrated. This can advantageously improve the concentricity and strength of the blades, increase air flow, and reduce noise.
  • The number of the blades 3 can be twelve. An outer circumference defined by the outer edges of the twelve blades 3 may have a diameter of 84 mm. With the combination of the five guide blades 1, the efficiency and wind speed of the fan blades can be improved. Otherwise, under the circumstances that the gap between the fan blades and fan housing is small and the motor is not fixed steadily, it will lead to friction between the fan blades and the fan housing. At the same time, the requirement of parallelism of the matching faces of the motor and the fan blades is higher.
  • The following table shows the data of performance for different blade nu gibers and different guide blade numbers:
  • Rate of Flow Shaft Outlet Total Fan
    Model (Kg/S) Power (W) Pressure (Pa) Efficiency
    11 fan blades + 0.1792 317.81 1195.661 55.04%
    7 guide blades
    12 fan blades + 0.2064 458.55 1586.598 58.36%
    5 guide blades
  • Preferably, the diameter of the hub 2 is 40 mm.
  • The guide blade portion may further include a central cylinder. One end of each guide blade may be fixed to the center cylinder and another end may be fixed to an inner wall of an outer cylinder of the axial-flow air blower.
  • The beneficial effect of the axial-flow air blower fan blade of the present application is that it has a simple and reasonable structure. The integration of the blades and the hub advantageously improves the concentricity and strength of the blades, increases air volume, and reduces noise. A reasonable number of blades and fan diameter together with a reasonable number of guide blades can improve efficiency and wind speed.
  • The above-mentioned embodiments are merely some embodiments of the axial-flow air blower's fan blades of the present application, and the scope of patent protection is not limited to these embodiments. Any equivalent structures or equivalent changes of process using the contents of the present patent specification, or any direct/indirect application in other related field of technology are within the scope of patent protection of the present application.

Claims (3)

What is claimed is:
1. An axial-flow air blower's fan blades, comprising a blade portion, and a guide blade portion provided behind the blade portion, the guide blade portion comprising five guide blades, the blade portion comprising a hub and a plurality of blades provided on the hub, the blades and the hub being integrated, wherein there are twelve blades, and an outer circumference defined by outer edges of the twelve blades has a diameter of 84 mm.
2. The axial-flow air blower's fan blades according to claim 1, wherein the hub has a diameter of 40 mm.
3. The axial-flow air blower's fan blades according to claim 1, wherein the guide blade portion further comprises a central cylinder, one end of each guide blade being fixed to the center cylinder and another end being fixed to an inner wall of an outer cylinder of the axial-flow air blower.
US15/493,178 2014-10-24 2017-04-21 Axial-flow air blower fan blades Abandoned US20170218972A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201420616868.X 2014-10-24
CN201420616868.XU CN204213047U (en) 2014-10-24 2014-10-24 Axial-flow blower fan blade
PCT/CN2015/084526 WO2016062132A1 (en) 2014-10-24 2015-07-20 Axial flow blower fan blade

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/084526 Continuation WO2016062132A1 (en) 2014-10-24 2015-07-20 Axial flow blower fan blade

Publications (1)

Publication Number Publication Date
US20170218972A1 true US20170218972A1 (en) 2017-08-03

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ID=52981722

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US15/493,178 Abandoned US20170218972A1 (en) 2014-10-24 2017-04-21 Axial-flow air blower fan blades

Country Status (6)

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US (1) US20170218972A1 (en)
EP (1) EP3211244A4 (en)
CN (1) CN204213047U (en)
CA (1) CA2965399A1 (en)
RU (1) RU2017117725A (en)
WO (1) WO2016062132A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204213047U (en) * 2014-10-24 2015-03-18 常州格力博有限公司 Axial-flow blower fan blade

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047692A (en) * 1975-09-24 1977-09-13 Swin Sr Richard E Apparatus for molding dynamically balanced fans
EP1070849A2 (en) * 1999-07-22 2001-01-24 LG Electronics, Inc. Axial flow fan
US20140241868A1 (en) * 2013-02-25 2014-08-28 Greenheck Fan Corporation Fan assemblies and stator assemblies

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7484925B2 (en) * 2005-05-10 2009-02-03 Emp Advanced Development, Llc Rotary axial fan assembly
CN2921392Y (en) * 2006-05-16 2007-07-11 保锐科技股份有限公司 Axial-flow radiating fan
US8328522B2 (en) * 2006-09-29 2012-12-11 Pax Scientific, Inc. Axial flow fan
JP5244620B2 (en) * 2008-05-26 2013-07-24 山洋電気株式会社 Blower
TWI398579B (en) * 2009-12-18 2013-06-11 Yen Sun Technology Corp A cooling fan with reduced noise
US20140147282A1 (en) * 2012-11-23 2014-05-29 Cooler Master Co., Ltd. Fan structure
CN203161662U (en) * 2013-04-15 2013-08-28 株洲联诚集团有限责任公司 Axial flow ventilator for water cooling device of main converter of motor train unit
CN203335439U (en) * 2013-07-12 2013-12-11 株洲联诚集团有限责任公司 Ventilation fan for double-flow system electric locomotive cooling tower
CN203756564U (en) * 2013-12-31 2014-08-06 常州格力博有限公司 Axial flow blower
CN204213047U (en) * 2014-10-24 2015-03-18 常州格力博有限公司 Axial-flow blower fan blade

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047692A (en) * 1975-09-24 1977-09-13 Swin Sr Richard E Apparatus for molding dynamically balanced fans
EP1070849A2 (en) * 1999-07-22 2001-01-24 LG Electronics, Inc. Axial flow fan
US20140241868A1 (en) * 2013-02-25 2014-08-28 Greenheck Fan Corporation Fan assemblies and stator assemblies

Also Published As

Publication number Publication date
CN204213047U (en) 2015-03-18
RU2017117725A (en) 2018-11-26
CA2965399A1 (en) 2016-04-28
EP3211244A4 (en) 2018-06-20
EP3211244A1 (en) 2017-08-30
WO2016062132A1 (en) 2016-04-28

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Owner name: CHANGZHOU GLOBE CO., LTD., CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SHANGGUAN, YUNJIE;LUO, LI;REEL/FRAME:042122/0205

Effective date: 20170414

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Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

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STCB Information on status: application discontinuation

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