EP2242930A1 - Compact fan - Google Patents
Compact fanInfo
- Publication number
- EP2242930A1 EP2242930A1 EP09712411A EP09712411A EP2242930A1 EP 2242930 A1 EP2242930 A1 EP 2242930A1 EP 09712411 A EP09712411 A EP 09712411A EP 09712411 A EP09712411 A EP 09712411A EP 2242930 A1 EP2242930 A1 EP 2242930A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compact
- motor mount
- spacers
- fan
- front plate
- 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.)
- Granted
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 101100240595 Mus musculus Nipal4 gene Proteins 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract 1
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid 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
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/626—Mounting or removal of 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/50—Building or constructing in particular ways
- F05D2230/53—Building or constructing in particular ways by integrally manufacturing a component, e.g. by milling from a billet or one piece construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
Definitions
- the present invention relates to a compact fan according to the preamble of claim 1.
- Such a compact fan is z. B. from DE-G 90 17 873.4.
- the present invention is based on the object to realize a montage technically simple and compact design, with improved Strömlingseigenticianen.
- the front plate and the motor mount are formed as plastic or metal injection molded parts and the spacers are connected as a plastic or metal injection molded completely or partially in one piece with the front panel and / or the motor mount. It is advantageous if the front plate, the motor mount and the spacers form a one-piece injection molded part. It may also be advantageous if the front plate, the motor mount and the spacers are formed from two plastic or metal injection molded parts which can be connected to one another in the region of the spacers.
- FIG. 2 is a view of the compact fan of FIG. 1 in the viewing direction II in Fig. 1,
- Fig. 3 is a view of the compact fan of FIG. 2 in the fully assembled
- Fig. 5 is a view of another embodiment of an inventive
- Fig. 6 shows a further embodiment of a compact fan according to the invention in
- Fig. 7 is a view of the compact fan of FIG. 6 in a
- FIG. 8 shows a view of the fully assembled compact ventilator according to FIG. 6.
- An inventive compact fan consists of a fan, in particular radial fan 1, which is mounted on a rotor of an external rotor motor 2, in particular is pressed.
- the fan 1 consists of a front cover plate 3 and a rear cover plate. 4
- the front cover plate 3 has a circular air inlet opening 7, see Fig. 2.
- the external rotor motor 2 is mounted with the radial fan 1 between a front plate 8 with an air inlet opening 9 and a motor mount 11, as shown in Fig. 3.
- the front plate 8 and the motor mount 11 are interconnected by a plurality of circumferentially arranged on the circumference of the two parts 8, 11 spacers 12.
- the spacers 12 define the width of an air outlet gap 13 formed circumferentially around the radial fan wheel 1.
- the front plate 8 and the motor mount 11 as well as the spacers 12 are here as one-piece made of plastic or metal existing injection molded part formed.
- the circular air inlet opening 9 has an inner edge region 14 formed as an inlet nozzle.
- this inner nozzle region 14 protrudes into the air inlet opening 7 of the front cover disk 3, so that its inner diameter is slightly larger than the outer diameter of the inlet nozzle 14.
- the external rotor motor 2 is fastened with its stator flange 16 to the motor mount 11 by means of an intermediate mount 17, namely on a peripherally closed edge web 18 of the motor mount 11.
- the intermediate support 17 has a middle retaining plate 19, to which the motor flange 16 is fastened, for example by means of screws.
- Extending radially outwardly from the middle retaining disk 19 are a plurality of spoke webs 21, which are connected in the region of their free ends by a circumferential annular web 22.
- the spoke webs 21 continue with web extensions 23 over the annular web 22 radially outward.
- the spoke webs 21 are in cross-section as unilaterally open channels, ie formed in cross-section U-shaped, which is useful for strength and material saving reasons.
- the intermediate support 17 may be made as a plastic injection molded part or as a metal molding, in particular as a metal casting. In the case of training as a metal molding, the intermediate bracket 17 serves as a heat conducting element at the same time.
- the motor mount 11 has on its side facing away from the front panel 8 side 24 receiving pockets 26 which serve to receive the web extensions 23 in the assembled state of the intermediate bracket 7 on the motor mount 11.
- four spoke webs 21 are integrally formed on the middle retaining disk 19, wherein these spoke webs 21 each include right angles with their respective extensions.
- the spoke webs 21 in this case do not run exactly radially, but are each arranged offset radially to the central axis.
- the annular web 22 is also U-shaped in cross-section as a channel open on one side, again for material saving reasons and for increasing the rigidity.
- the web extensions 23 On its upper side, the web extensions 23 have lugs 27, which in the mounted state of the intermediate holder 7 in adapted recesses 28 (Fig. 1) in the receiving pockets 26 for the positioning of the parts intervene.
- the intermediate support 17 connected to the external rotor motor 2 is screwed to the motor mount 11 connected.
- the external rotor motor 2 preassembled on the intermediate support 17 with the radial fan wheel 1 mounted on it is introduced through a circular receiving opening 29 of the motor mount 11 into the space between the front plate 8 and the motor mount 11.
- the diameter of the receiving opening 29 is slightly larger than the outer diameter of the Radialzuffterrades 1.
- the spacers 12 are formed as approximately rectangular cross-section struts with chamfered corners perpendicular to the front panel 8 and the edge web 18th run.
- the web-shaped spacers 12 have the shape of flow profiles. These are expediently wing profiles that are optimized aerodynamically and aeroacoustically. By avoiding air separations or vortices on the spacer profiles, there are thus no negative effects on the air power and the noise due to the spacers 12 themselves.
- the flow-profile-like spacers 12 have, as can be seen from Fig. 4, a longitudinal axis X and a transverse axis Y 1 wherein the longitudinal axis X is longer than the transverse axis Y.
- the flow-profile-shaped spacers 12 are arranged such that they with their rounded Front are aligned opposite to the direction of rotation Z.
- a further optimization according to the invention consists in optimizing the strut spacing A of the struts from the center point or the center axis M of the radial fan wheel 1, the strut spacing A preferably being dimensioned such that: 1, 05 x R ⁇ A ⁇ 1, 5 R, where R is the radius of the radial fan wheel 1.
- the air inlet opening 9 of the front panel 8 can be closed by a protective grid 32.
- the protective grid 32 which is designed in particular as a plastic injection-molded part, by means of a clip connection with the front panel 8 is locked.
- the front panel 8 is preferably dimensioned such that it projects beyond the motor mount 11 at its outer edge.
- the compact ventilator according to the invention can be replaced by an insertion opening in a Compact fan receiving wall or a housing are plugged in until the front panel 8 rests against the compact fan receiving wall and the insertion opening is thereby covered.
- the compact ventilator according to the invention can be fastened in accordance with the screw.
- the front plate 8 and the motor mount 11 preferably have a square shape, with the corners 30, 35 each being chamfered.
- FIG. 5 shows an alternative embodiment of a compact ventilator according to the invention with respect to FIGS. 1 to 4.
- the intermediate holder consists of the middle holding plate 19 and formed on this spoke webs 21.
- spoke webs 21 which are arcuately shaped in this embodiment.
- the spoke webs 21 are directly connected to the edge web 18 of the motor mount 11, so that in this embodiment, no annular web is present.
- the spacers 12 are formed as streamlined, arcuate cross-section struts. In this case, the arc shape is selected such that there is a convex to the interior of the compact fan contour of the arcuate struts.
- the spacers 12 extend obliquely to the front plate 8 and the edge web 18 and start and end respectively in the corners 30 and 35. Furthermore, it can be seen that a terminal box 40 is partially present in the space between the radial fan 1 and the front panel 8. Instead of a terminal box 40 for the electrical connection, only a simple cable connection can be provided.
- FIGS. 6 to 8 show a further alternative embodiment of a compact ventilator according to the invention.
- the front plate 8, the motor mount 11 and the spacers 12 are formed from two plastic or metal injection-molded parts which can be connected to one another in the region of the spacers 12.
- the motor mount 11 consists of a central support plate 19 for attachment of the stator 16 of an external rotor motor 2. From this central support plate 19 extend approximately radial spoke webs 21 to the outside , which end in a peripherally closed edge web 37. Thus, the edge web 37, the spoke webs 21 and the middle retaining plate 19, the motor mount 11.
- both the front plate 8 and the motor mount 11 on their sides facing each other sections 38, 39 of the spacer 12.
- sections 38, 39 can be the same length or different lengths and it is also within the scope of the invention, when either the front plate or on the motor mount 11, the spacers 12 are formed in their entire length.
- the assembly of the compact fan according to the invention is in this case such that initially the radial fan 1 with the external rotor motor 2 is secured schraubmul on the motor mount 11, on the front panel 8 facing side of the motor mount 11. Thereafter, the motor mount 11 with the front panel in the abutting portions 38, 39 of the spacers 12 connected by, for example, fastening screws are screwed through the sections 39, 39. This is preferably done from the back of the motor mount 11.
- the intermediate mounting position with the radial fan 1 connected to the engine mount 11 is shown in FIG. Fig.
- the front plate 8 and the motor mount 11 are manufactured in particular as plastic injection-molded parts.
- the protective grid 32 can be clipped on or can also be formed in one piece with the front panel 8.
- the front plate 8 and the motor mount 11, in particular its edge web 18, also have an approximately square peripheral contour, wherein the corners of the square are each bevelled.
- the invention is not limited to such a configuration of the front panel 8 and the motor mount 11. Both the front plate 8 and the motor mount 11 can be stiffened by ribs 34, 35.
- the invention is not limited to the illustrated embodiments, but also includes all the same in the context of the invention means. Furthermore, the invention has hitherto not been limited to the feature combination defined in claim 1, but may also be defined by any other combination of specific features of all individually disclosed individual features. This means that in principle virtually every individual feature of claim 1 can be omitted or replaced by at least one individual feature disclosed elsewhere in the application. In this respect, the claim 1 is to be understood only as a first formulation attempt for an invention.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202008002356U DE202008002356U1 (en) | 2008-02-19 | 2008-02-19 | compact fans |
PCT/EP2009/051069 WO2009103606A1 (en) | 2008-02-19 | 2009-01-30 | Compact fan |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2242930A1 true EP2242930A1 (en) | 2010-10-27 |
EP2242930B1 EP2242930B1 (en) | 2012-03-07 |
Family
ID=40551075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09712411A Active EP2242930B1 (en) | 2008-02-19 | 2009-01-30 | Compact fan |
Country Status (7)
Country | Link |
---|---|
US (2) | US8992175B2 (en) |
EP (1) | EP2242930B1 (en) |
CN (1) | CN101946092B (en) |
AT (1) | ATE548568T1 (en) |
DE (2) | DE202008002356U1 (en) |
ES (1) | ES2382438T4 (en) |
WO (1) | WO2009103606A1 (en) |
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TWI294486B (en) * | 2005-12-02 | 2008-03-11 | Foxconn Tech Co Ltd | A frame and a fan with the frame |
JP2007239712A (en) * | 2006-03-13 | 2007-09-20 | Nippon Densan Corp | Centrifugal fan |
JP4946534B2 (en) * | 2007-03-12 | 2012-06-06 | 日本電産株式会社 | Cooling system |
-
2008
- 2008-02-19 DE DE202008002356U patent/DE202008002356U1/en not_active Expired - Lifetime
- 2008-11-07 DE DE102008056459A patent/DE102008056459A1/en not_active Withdrawn
-
2009
- 2009-01-30 ES ES09712411T patent/ES2382438T4/en active Active
- 2009-01-30 EP EP09712411A patent/EP2242930B1/en active Active
- 2009-01-30 CN CN200980105783.7A patent/CN101946092B/en active Active
- 2009-01-30 US US12/918,405 patent/US8992175B2/en active Active
- 2009-01-30 AT AT09712411T patent/ATE548568T1/en active
- 2009-01-30 WO PCT/EP2009/051069 patent/WO2009103606A1/en active Application Filing
- 2009-09-29 US US13/124,765 patent/US8672615B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2009103606A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20110200438A1 (en) | 2011-08-18 |
CN101946092A (en) | 2011-01-12 |
ES2382438T3 (en) | 2012-06-08 |
EP2242930B1 (en) | 2012-03-07 |
US20100329857A1 (en) | 2010-12-30 |
ES2382438T4 (en) | 2012-10-10 |
WO2009103606A1 (en) | 2009-08-27 |
CN101946092B (en) | 2015-07-01 |
DE102008056459A1 (en) | 2009-08-20 |
ATE548568T1 (en) | 2012-03-15 |
US8992175B2 (en) | 2015-03-31 |
DE202008002356U1 (en) | 2009-06-25 |
US8672615B2 (en) | 2014-03-18 |
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