CN103423195A - Blower impeller shaft mounting - Google Patents
Blower impeller shaft mounting Download PDFInfo
- Publication number
- CN103423195A CN103423195A CN2012105056911A CN201210505691A CN103423195A CN 103423195 A CN103423195 A CN 103423195A CN 2012105056911 A CN2012105056911 A CN 2012105056911A CN 201210505691 A CN201210505691 A CN 201210505691A CN 103423195 A CN103423195 A CN 103423195A
- Authority
- CN
- China
- Prior art keywords
- impeller
- axle
- lower plate
- diameter portion
- auxiliary element
- 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.)
- Pending
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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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
-
- 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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
-
- 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
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
-
- 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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An impeller 100 for an electric blower includes an upper plate 110, a lower plate 120, and a blade 130 positioned there between. The lower plate includes a burring part 121 (e.g.a boss) formed at an inner diameter portion thereof, to which a shaft 200 is insertedly coupled. The burring part increases the contact area of the lower plate with the shaft. The burring part may protrude vertically towards the upper plate.
Description
The cross reference of related application
The application requires to submit on May 25th, 2012, name is called the preference of the korean patent application No.10-2012-0056257 of " impeller of electric blower ", its at this all as in quoting and merging to the application.
Technical field
The present invention relates to the impeller of electric blower.
Background technique
Usually, the impeller of electric blower is used being connected with motor to suck under the state of fluid.More particularly, the top of the fan electromotor of vacuum dust collector is provided with impeller, and this impeller is for air-breathing centrifugal fan, and wherein impeller is connected to the axle of drive motor, thus rotation.
Yet, as disclosed as prior art document below, comprise upper plate, lower plate and wheel blade according to the impeller of prior art., upper plate, lower plate and wheel blade are manufactured respectively, then are connected to each other, and make when vane rotary, and due to centrifugal force and aerodynamic force, stress concentrates on attachment portion.Therefore, attachment portion may be concentrated and damaged due to the stress when the impeller High Rotation Speed.
In addition, according to the impeller of the electric blower of prior art, have thin thickness, therefore measure and assembling while processing in technique, the variation of its internal diameter is large.Especially, in the situation that axle is connected to impeller, in the axle attachment portion of impeller, wearing and tearing occur, and produce bias when assembling, so motor is driven with unbalanced pattern, and attachment portion is insecure, thereby reduced soundness and stability.
[prior art document]
[patent documentation]
(patent documentation 1) JP2003-269391A
Summary of the invention
The present invention is devoted to provide a kind of impeller of electric blower, this impeller comprises the flange part that is formed on its inner-diameter portion whose, axle is connected with inner-diameter portion whose, so that in the situation that axle is connected flange partly with impeller-inserted ground and the outer surface of axle is connected to each other, therefore the area of contact between axle and impeller partly increases by flange, thereby the wearing and tearing in the time of can preventing connection power due to assembly process reduce with unbalance, simplified assembly process, and make the impeller of electric blower and the linkage structure between axle more firm.
In addition, the present invention is devoted to provide a kind of impeller of electric blower, this impeller comprises the axle attachment portion that is formed on its inner-diameter portion whose, axle is connected with inner-diameter portion whose, and the axle attachment portion comprises flange part and packing ring part, so that in the situation that axle is connected flange partly with impeller-inserted ground and the outer surface of axle is connected to each other, therefore the area of contact between axle and impeller partly increases by flange, thereby the wearing and tearing in the time of can preventing connection power due to assembly process reduce with unbalance, simplified assembly process, and with the fixing nut of axle by the washer portion sub-support, so that impeller does not need independent packing ring while using, thereby can reduce manufacture cost, boost productivity, and make the impeller of electric blower and the linkage structure between axle more firm.
According to a preferred embodiment of the invention, provide a kind of impeller of electric blower, this impeller comprises: upper plate; Lower plate; And be arranged on the wheel blade between upper plate and lower plate, and wherein, lower plate comprises the flange part, this turn-up portion is divided the inner-diameter portion whose be connected with axle plug-in type ground that is formed on lower plate.
The flange part can be given prominence to, so that the inner-diameter portion whose of the insertion axle of lower plate is vertically erect towards upper plate.
Axle can be connected with the flange part plug-in type of lower plate ground, and nut can be threaded with the upper end part of axle, so that nut is arranged on flange upper end part partly.
Impeller can also comprise auxiliary element, and this auxiliary element is arranged on the inner-diameter portion whose be connected with axle of impeller.
Auxiliary element can be connected with two of lower plate surfaces, makes lower plate between auxiliary element, and the upper surface that is arranged on the auxiliary element on the upper surface of lower plate can be fixed by nut.
According to of the present invention another preferred embodiment, a kind of impeller of electric blower is provided, this impeller comprises: upper plate; Lower plate; If be placed on the wheel blade between upper plate and lower plate, wherein, lower plate comprises flange part and packing ring part, and described turn-up portion is divided the inner-diameter portion whose be connected with axle plug-in type ground that is formed on lower plate, and described packing ring part is extended along the direction perpendicular to the flange part.
Flange part can be given prominence to, so that the inner-diameter portion whose of the insertion axle of lower plate vertically erects towards upper plate, and the packing ring part can extend along the direction perpendicular to the flange part, with the contact lower plate.
Axle can be connected with the flange part plug-in type of lower plate ground, and nut can be threaded with the upper end part of axle, so that nut is arranged on flange upper end part partly.
Impeller can also comprise auxiliary element, and this auxiliary element is arranged on the inner-diameter portion whose be connected with axle of impeller.
Auxiliary element can be connected with the surface towards the packing ring part of lower plate.
The accompanying drawing explanation
According to following detailed description by reference to the accompanying drawings, will have more and be well understood to above-mentioned target, feature and other advantages with other of the present invention, wherein:
Fig. 1 is sectional view, has schematically shown according to the present invention the state that the impeller of the first electric blower preferred embodiment is connected with axle;
Fig. 2 is the impeller of the electric blower shown in Fig. 1 and the schematic perspective exploded view of axle module;
Fig. 3 is sectional view, has schematically shown according to the present invention the state that the impeller of the second electric blower preferred embodiment is connected with axle; With
Fig. 4 is the impeller of the electric blower shown in Fig. 3 and the schematic perspective exploded view of axle module;
Embodiment
From the detailed description of following preferred implementation by reference to the accompanying drawings, will have more and be well understood to target of the present invention, feature and advantage.In all accompanying drawings, identical reference character, for meaning identical or similar parts, has omitted identical unnecessary description simultaneously.In addition, in the following description, term " first ", " second ", " side ", " opposite side " etc. are for from other element, distinguishing a certain element, but the structure of such element can not be considered as by above-mentioned term restriction.Further, in description of the invention, when determining the fuzzy purport of the present invention of detailed description meeting of prior art, such description will be omitted.
Hereinafter, in connection with accompanying drawing, the preferred embodiment of the present invention is described in detail.
Fig. 1 is sectional view, has schematically shown the state that the impeller of the electric blower of the first preferred implementation according to the present invention is connected with axle; And Fig. 2 is the impeller of the electric blower shown in Fig. 1 and the schematic perspective exploded view of axle module.
As depicted in figs. 1 and 2, the impeller 100 of electric blower comprises the axle 200 be connected with the inner-diameter portion whose plug-in type ground of impeller, and axle 200 is connected with impeller 100 securely by nut 300 thus.
For this reason, the upper end part of axle 200 forms the part 210 that is threaded, form screw thread on this is threaded part 210, the part 210 that is threaded of nut 300 and axle 200 is inserted under the state in the inner-diameter portion whose of impeller 100 and is connected at axle 200, makes axle 200 be connected securely with impeller 100.
In addition, in order to improve the steadiness of the attachment portion between axle and impeller, the impeller 100 of electric blower can also comprise auxiliary element 400, and this auxiliary element 400 is arranged on the inner-diameter portion whose be connected with axle of impeller 100.
More particularly, the impeller 100 of electric blower be configured to comprise upper plate 110, lower plate 120 and be arranged on upper plate 110 and lower plate 120 between wheel blade 130.
In addition, as showing in greater detail in the zoomed-in view of Fig. 1, lower plate 120 comprises flange part (the burring part) 121 that is formed on its inner-diameter portion whose be connected with axle 200.This flange part 121 is outstanding, so that the inner-diameter portion whose of the insertion axle of lower plate is vertically erect towards upper plate 110, described flange part 121 has increased the area of contact with axle 200, so that coaxality is easily handled and improved the steadiness in situation about being connected with axle 200 plug-in type ground.
In addition, axle 200 and flange part 121 plug-in type ground are connected, and nut 300 is threaded with the part 210 that is threaded of the upper end part that is arranged on axle 200, so nut is arranged on the upper end part of flange part 121.
In addition, auxiliary element 400 is connected with two surfaces of the lower plate 120 of the insertion axle of the impeller 100 of electric blower, makes lower plate 120 between auxiliary element.In addition, the upper surface that is arranged on the auxiliary element 400 on the upper surface of lower plate 120 supports by nut 300.
According to the present invention, the impeller 100 of the electric blower of the first preferred implementation comprises the flange part 121 that is formed on its inner-diameter portion whose, axle 200 is connected with inner-diameter portion whose, so that in the situation that axle and impeller 100 plug-in type ground are connected the outer surface of flange part 121 and axle is connected to each other, therefore the area of contact between axle 200 and impeller 100 increases by flange part 121, thereby the wearing and tearing in the time of can preventing connection power due to assembly process reduce with unbalance, simplified assembly process, and obtained more firmly linkage structure between the impeller of electric blower and axle.
Fig. 3 is sectional view, has schematically shown according to the present invention the state that the impeller of the second electric blower preferred embodiment is connected with axle; As shown in Figure 3, the difference of the impeller 100 of the electric blower of the first preferred implementation according to the present invention shown in the impeller 100' of electric blower and Fig. 1 only is the attachment portion with axle.
More particularly, the impeller 100' of electric blower comprises the axle 200 be connected with the inner-diameter portion whose plug-in type ground of impeller, and axle 200 is connected with impeller 100' securely by nut 300 thus.
For this reason, the upper end part of axle 200 forms the part 210 that is threaded, form screw thread on this is threaded part 210, nut 300 is inserted under the state in impeller 100' and is connected at axle 200 with the part 210 that is threaded of axle 200, makes axle 200 be connected securely with impeller 100'.
In order to improve the steadiness of the attachment portion between axle and impeller, the impeller 100' of electric blower can also comprise auxiliary element 400, and this auxiliary element 400 is arranged on the inner-diameter portion whose be connected with axle of impeller 100'.
At this, different from the Axile connection structure of the electric blower blade 100 of the first preferred implementation according to the present invention, can arrange and install only single auxiliary element 400, to be supported on the bottom of blade 100'.Reason is formed in the packing ring part 121b' of axle attachment portion of the inner-diameter portion whose be connected with axle 200 of impeller 100' also as auxiliary element.
More particularly, the impeller 100' of electric blower is configured to comprise upper plate 110', lower plate 120' and wheel blade 130'.
In addition, in the zoomed-in view as Fig. 3, show in greater detail, lower plate 120' comprises axle attachment portion 121a' and the 121b' that is formed on its inner-diameter portion whose be connected with axle 200.In addition, the axle attachment portion comprises flange part 121a' and packing ring part 121b'.
In addition, flange part 121a' is outstanding, so that the inner-diameter portion whose of the insertion axle of the lower plate 120' of the impeller 100' of electric blower is vertically erect towards upper plate 110, described flange has partly increased the area of contact with axle 200 so that coaxality easily handle with improved situation about being connected with axle 200 plug-in type ground under steadiness.
In addition, packing ring part 121b' is in the situation that nut 300 is connected as packing ring with the part 210 that is threaded of axle 200, and it forms along the direction of erectting perpendicular to flange part 121a' and extends, with engagement shaft.
In addition, packing ring part 121b' is set to so that contact with lower plate, and in the situation that by nut 300 retaining washer part 121b', nut 300 is arranged on the packing ring part.
The end of the flange part that in addition, packing ring part 121b' can be outstanding by compression forms.
In addition, auxiliary element 400 is connected with the surface towards packing ring part 121a' of lower plate.
According to the present invention, the impeller 100' of the second electric blower preferred embodiment comprises the axle attachment portion that is formed on its inner-diameter portion whose, axle 200 is connected with inner-diameter portion whose, and the axle attachment portion comprises flange part 121a' and packing ring part 121b', so that in the situation that axle and impeller 100' plug-in type ground is connected the outer surface of flange part 121a' and axle is connected to each other, therefore the area of contact between axle 200 and impeller 100' increases by flange part 121a', thereby the wearing and tearing in the time of can preventing connection power due to assembly process reduce with unbalance, simplified assembly process, and support by packing ring part 121b' with the fixing nut of axle, so that impeller does not need independent packing ring while using, thereby can reduce manufacture cost, boost productivity, and obtained more firmly linkage structure between the impeller of electric blower and axle.
As mentioned above, utilize the impeller of electric blower according to the preferred embodiment of the present invention, upper plate is connected with the lower plate integrally formed with wheel blade, thereby can simplify manufacture process and boost productivity.In addition, impeller is by the thermoplastic material manufacture, thereby can reduce manufacture cost.In addition, lower plate, wheel blade and upper plate be integrally injection molding casting mutually, thereby can reduce the intensity that impeller was concentrated and improved to stress.
Although embodiments of the present invention are illustrative purpose and open, but what need to recognize is to the invention is not restricted to foregoing, it will be appreciated by those of skill in the art that without departing from the scope and spirit of the present invention, can carry out multiple modification, interpolation and displacement.
Therefore, whatsoever revise, within variation or equivalents all should be considered as included in scope of the present invention, and detailed scope of the present invention is open by appended claim.
Claims (10)
1. the impeller of an electric blower, this impeller comprises:
Upper plate;
Lower plate; With
Be arranged on the wheel blade between described upper plate and described lower plate,
Wherein, described lower plate comprises the flange part, and this turn-up portion is divided the inner-diameter portion whose be connected with axle plug-in type ground that is formed on described lower plate.
2. impeller according to claim 1, wherein, described flange is partly outstanding, so that the described inner-diameter portion whose of the insertion axle of described lower plate is vertically erect towards described upper plate.
3. impeller according to claim 1, wherein, described axle is connected with the flange part plug-in type ground of described lower plate, and nut is threaded with the upper end part of described axle, so that described nut is arranged on described flange upper end part partly.
4. impeller according to claim 1, wherein, described impeller also comprises auxiliary element, this auxiliary element is arranged on the inner-diameter portion whose be connected with described axle of described impeller.
5. impeller according to claim 4, wherein, two surfaces of described auxiliary element and described lower plate are connected, and make described lower plate between described auxiliary element, and the upper surface that is arranged on the described auxiliary element on the upper surface of described lower plate is fixed by nut.
6. the impeller of an electric blower, this impeller comprises:
Upper plate;
Lower plate; With
Be arranged on the wheel blade between described upper plate and described lower plate,
Wherein, described lower plate comprises flange part and packing ring part, and described turn-up portion is divided the inner-diameter portion whose be connected with axle plug-in type ground that is formed on described lower plate, and described packing ring part is extended along the direction perpendicular to described flange part.
7. impeller according to claim 6, wherein, described flange is partly outstanding, so that the described inner-diameter portion whose of the insertion axle of described lower plate is vertically erect towards described upper plate, and described packing ring part is extended along the direction perpendicular to described flange part, to contact described lower plate.
8. impeller according to claim 6, wherein, described axle is connected with the flange part plug-in type ground of described lower plate, and nut is threaded with the upper end part of described axle, so that described nut is arranged on described flange upper end part partly.
9. impeller according to claim 6, wherein, described impeller also comprises auxiliary element, this auxiliary element is arranged on the inner-diameter portion whose be connected with described axle of described impeller.
10. impeller according to claim 9, wherein, described auxiliary element is connected with the surface towards described packing ring part of described lower plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2012-0056257 | 2012-05-25 | ||
| KR1020120056257A KR101388842B1 (en) | 2012-05-25 | 2012-05-25 | Impeller for electric blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103423195A true CN103423195A (en) | 2013-12-04 |
Family
ID=47560676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105056911A Pending CN103423195A (en) | 2012-05-25 | 2012-11-30 | Blower impeller shaft mounting |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20130315743A1 (en) |
| KR (1) | KR101388842B1 (en) |
| CN (1) | CN103423195A (en) |
| GB (1) | GB2502388A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779934A (en) * | 2019-03-19 | 2019-05-21 | 苏州欧比特机械有限公司 | A kind of Moveable energy-saving fan |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150134636A (en) * | 2014-05-22 | 2015-12-02 | 삼성전기주식회사 | Electric blower |
| JP6292241B2 (en) * | 2016-01-18 | 2018-03-14 | ダイキン工業株式会社 | Centrifugal fan |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191018349A (en) * | 1910-08-03 | 1911-06-01 | Siemens Brothers Dynamo Works | Improvements in Centrifugal Fans. |
| JPS569699A (en) * | 1979-07-05 | 1981-01-31 | Matsushita Electric Ind Co Ltd | Motor-driven blower |
| CN2458440Y (en) * | 2001-01-02 | 2001-11-07 | 王志平 | High-pressure centrifugal fan special for nm-class equipment |
| CN1386983A (en) * | 2002-06-06 | 2002-12-25 | 孙敏超 | Efficient propeller with blades curled backward for centrifugal propeller machinery |
| CN2549226Y (en) * | 2002-06-14 | 2003-05-07 | 王明冲 | Unitary ductile iron centrifugal fan impeller |
| JP2005214057A (en) * | 2004-01-29 | 2005-08-11 | Hitachi Ltd | Electric blower |
| CN201401349Y (en) * | 2009-03-13 | 2010-02-10 | 东莞市恒生机械制造有限公司 | Special conveying fan of waste foam substances |
| CN201836110U (en) * | 2010-09-16 | 2011-05-18 | 苏州顶裕节能设备有限公司 | Fan shaft disk |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3893817A (en) * | 1973-01-02 | 1975-07-08 | Outboard Marine Corp | Die castable centrifugal fan |
| JPS5882098A (en) * | 1981-11-11 | 1983-05-17 | Hitachi Ltd | Fixation of steel impeller to shaft |
| JPH01227897A (en) * | 1988-03-07 | 1989-09-12 | Akaishi Kinzoku Kogyo Kk | Cylindrical double-fan made of plastic |
| JP2809487B2 (en) * | 1989-07-05 | 1998-10-08 | 株式会社荏原製作所 | Centrifugal pump casing |
| KR960004687Y1 (en) * | 1991-11-26 | 1996-06-04 | 삼성전기 주식회사 | Impeller assembly device of motor for a vacuum cleaner |
| JPH09256994A (en) * | 1996-03-22 | 1997-09-30 | Toshiba Transport Eng Kk | Centrifugal multiple blade type motor-driven blower |
| JPH10318189A (en) * | 1997-05-16 | 1998-12-02 | Matsushita Electric Ind Co Ltd | Blower |
| WO1999058857A1 (en) * | 1998-05-13 | 1999-11-18 | Matsushita Electric Industrial Co., Ltd. | Electric blower and vacuum cleaner using it |
| JP2000009093A (en) * | 1998-06-19 | 2000-01-11 | Fujitsu General Ltd | Fan fixing device |
| JP4458800B2 (en) * | 2003-09-17 | 2010-04-28 | 日本電産株式会社 | Fan and information device equipped with the same |
| KR20050063517A (en) * | 2003-12-22 | 2005-06-28 | 엘지전자 주식회사 | Impeller assembly structure of cleaner fan motor |
| KR20060039535A (en) * | 2004-11-03 | 2006-05-09 | 삼성광주전자 주식회사 | A suction motor for vacuum cleaner |
-
2012
- 2012-05-25 KR KR1020120056257A patent/KR101388842B1/en not_active IP Right Cessation
- 2012-11-26 GB GB1221236.1A patent/GB2502388A/en not_active Withdrawn
- 2012-11-30 CN CN2012105056911A patent/CN103423195A/en active Pending
- 2012-12-06 US US13/707,434 patent/US20130315743A1/en not_active Abandoned
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191018349A (en) * | 1910-08-03 | 1911-06-01 | Siemens Brothers Dynamo Works | Improvements in Centrifugal Fans. |
| JPS569699A (en) * | 1979-07-05 | 1981-01-31 | Matsushita Electric Ind Co Ltd | Motor-driven blower |
| CN2458440Y (en) * | 2001-01-02 | 2001-11-07 | 王志平 | High-pressure centrifugal fan special for nm-class equipment |
| CN1386983A (en) * | 2002-06-06 | 2002-12-25 | 孙敏超 | Efficient propeller with blades curled backward for centrifugal propeller machinery |
| CN2549226Y (en) * | 2002-06-14 | 2003-05-07 | 王明冲 | Unitary ductile iron centrifugal fan impeller |
| JP2005214057A (en) * | 2004-01-29 | 2005-08-11 | Hitachi Ltd | Electric blower |
| CN201401349Y (en) * | 2009-03-13 | 2010-02-10 | 东莞市恒生机械制造有限公司 | Special conveying fan of waste foam substances |
| CN201836110U (en) * | 2010-09-16 | 2011-05-18 | 苏州顶裕节能设备有限公司 | Fan shaft disk |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779934A (en) * | 2019-03-19 | 2019-05-21 | 苏州欧比特机械有限公司 | A kind of Moveable energy-saving fan |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130132122A (en) | 2013-12-04 |
| GB2502388A (en) | 2013-11-27 |
| KR101388842B1 (en) | 2014-04-23 |
| GB201221236D0 (en) | 2013-01-09 |
| US20130315743A1 (en) | 2013-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131204 |