CA2965399A1 - Axial-flow air blower fan blades - Google Patents
Axial-flow air blower fan blades Download PDFInfo
- Publication number
- CA2965399A1 CA2965399A1 CA2965399A CA2965399A CA2965399A1 CA 2965399 A1 CA2965399 A1 CA 2965399A1 CA 2965399 A CA2965399 A CA 2965399A CA 2965399 A CA2965399 A CA 2965399A CA 2965399 A1 CA2965399 A1 CA 2965399A1
- Authority
- CA
- Canada
- Prior art keywords
- blades
- blade portion
- axial
- air blower
- guide
- 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
Links
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Disclosed is an axial flow blower fan blade, comprising a blade portion and a guide blade portion provided at the back of the blade portion, wherein the guide blade portion comprises five guide blades (1); the blade portion comprises a wheel hub (2) and a plurality of blades (3) provided on the wheel hub (2), the blades (3) and the wheel hub (2) are integrated, the number of the blades (3) is twelve, and the diameter of the outer annulus constituted by outer edges of the twelve blades (3) is 84 millimetres. The fan blade structure of the axial flow blower is simple and reasonable, the blades (3) and the wheel hub (2) are integrated, which is beneficial to improve the concentricity and intensity of the blades (3), improve air quantity and reduce the noise, and a reasonable number of blades (3) and the diameter of the blades (3) cooperating with a reasonable number of the guide blades (1) is able to improve the fan blade efficiency and the air speed.
Description
=
= CA 02965399 2017-04-21 Attorney Docket No. 36740-10 AXIAL-FLOW AIR BLOWER FAN BLADES
CROSS REFERENCE TO RELATED APPLICATIONS
The present application is a Continuation Application of PCT application No.
PCT/CN2015/084526 filed on July 20, 2015, which claims the benefit of Chinese Utility Model Application No. 201420616868.X filed on October 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.
Attorney Docket No. 36740-10 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:
Figure 1 is a schematic view of the structure of a blade portion;
Figure 2 is a schematic view of the structure of a guide blade portion;
= CA 02965399 2017-04-21 Attorney Docket No. 36740-10 AXIAL-FLOW AIR BLOWER FAN BLADES
CROSS REFERENCE TO RELATED APPLICATIONS
The present application is a Continuation Application of PCT application No.
PCT/CN2015/084526 filed on July 20, 2015, which claims the benefit of Chinese Utility Model Application No. 201420616868.X filed on October 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.
Attorney Docket No. 36740-10 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:
Figure 1 is a schematic view of the structure of a blade portion;
Figure 2 is a schematic view of the structure of a guide blade portion;
2 =
Attorney Docket No. 36740-10 Figure 3 is a schematic view of the structure of a blade;
Figure 4 is a cross-sectional view of the blade taken along line E-E of Figure
Attorney Docket No. 36740-10 Figure 3 is a schematic view of the structure of a blade;
Figure 4 is a cross-sectional view of the blade taken along line E-E of Figure
3; and Figure 5 is a cross-sectional view of the blade taken along line H-H of Figure 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 Figures 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.
Attorney Docket No. 36740-10 The following table shows the data of performance for different blade numbers and different guide blade numbers:
Model Rate of Flow Shaft Power Outlet Total Fan Efficiency (Kg/S) (W) Pressure (Pa) 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%
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.
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 Figures 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.
Attorney Docket No. 36740-10 The following table shows the data of performance for different blade numbers and different guide blade numbers:
Model Rate of Flow Shaft Power Outlet Total Fan Efficiency (Kg/S) (W) Pressure (Pa) 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%
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.
4
Claims (3)
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.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420616868.XU CN204213047U (en) | 2014-10-24 | 2014-10-24 | Axial-flow blower fan blade |
| CN201420616868.X | 2014-10-24 | ||
| PCT/CN2015/084526 WO2016062132A1 (en) | 2014-10-24 | 2015-07-20 | Axial flow blower fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2965399A1 true CA2965399A1 (en) | 2016-04-28 |
Family
ID=52981722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2965399A Abandoned CA2965399A1 (en) | 2014-10-24 | 2015-07-20 | Axial-flow air blower fan blades |
Country Status (6)
| Country | Link |
|---|---|
| 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)
| 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 |
Family Cites Families (13)
| 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 |
| DE60044049D1 (en) * | 1999-07-22 | 2010-05-06 | Lg Electronics Inc | Axial |
| 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 |
| WO2008042251A2 (en) * | 2006-09-29 | 2008-04-10 | Pax Streamline, 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 |
| US10184488B2 (en) * | 2013-02-25 | 2019-01-22 | Greenheck Fan Corporation | Fan housing having flush mounted stator blades |
| 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 |
-
2014
- 2014-10-24 CN CN201420616868.XU patent/CN204213047U/en not_active Expired - Lifetime
-
2015
- 2015-07-20 RU RU2017117725A patent/RU2017117725A/en not_active Application Discontinuation
- 2015-07-20 WO PCT/CN2015/084526 patent/WO2016062132A1/en active Application Filing
- 2015-07-20 EP EP15852647.5A patent/EP3211244A4/en not_active Withdrawn
- 2015-07-20 CA CA2965399A patent/CA2965399A1/en not_active Abandoned
-
2017
- 2017-04-21 US US15/493,178 patent/US20170218972A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP3211244A4 (en) | 2018-06-20 |
| CN204213047U (en) | 2015-03-18 |
| EP3211244A1 (en) | 2017-08-30 |
| US20170218972A1 (en) | 2017-08-03 |
| RU2017117725A (en) | 2018-11-26 |
| WO2016062132A1 (en) | 2016-04-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 20190722 |