EP2904272A1 - Wandring für einen axialventilator - Google Patents
Wandring für einen axialventilatorInfo
- Publication number
- EP2904272A1 EP2904272A1 EP13763236.0A EP13763236A EP2904272A1 EP 2904272 A1 EP2904272 A1 EP 2904272A1 EP 13763236 A EP13763236 A EP 13763236A EP 2904272 A1 EP2904272 A1 EP 2904272A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- ring according
- wall ring
- longitudinal axis
- annular
- 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
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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
Definitions
- the present invention relates to a wall ring for receiving in particular axial fans, comprising an annular body having a central longitudinal axis, with a flow inlet opening and a flow outlet opening and an annular wall extending between the two openings.
- Axial fans are used, among other things, for applications at very low temperatures. There is a risk of ice formation and thus freezing of the fan blades on the wall ring. Typical applications where there is a risk are heat pumps, evaporators in cold rooms and the like. To prevent such freezing, a heating element is known to be applied as electrical resistance heating on the wall ring and used as a heater. The disadvantage here is the large amount of energy that must be introduced to heat through the wall ring, an ice formation on the
- the present invention is based on the object to avoid the above disadvantages and to reduce the formation of ice on the wall ring inside. According to the invention this is achieved in that the annular wall has an enclosed by an outer wall and an inner wall cavity in which an electric heating element at least over a portion of the circumference of the annular wall can be fastened, and that the annular body of the wall ring consists of at least two partial bodies, the formed by a division of the annular body in a plane perpendicular to the longitudinal axis separating plane and are releasably connected together.
- the wall of the invention is made of plastic, so that solely by the inner cavity and the two-walledness and by the material used (plastic) of the wall of the invention an ice formation on the
- Wall ring inside is already reduced without the use of a heating element. Because the inside airspace and the outer wall serve as insulation from the environment. In addition, it allows the
- Heating tape which serves as electrical resistance heating. As a result, an optimal insulation effect is effected to the outside.
- inventive wall ring with a heating element possible.
- FIG. 1 is a perspective view of a wall ring according to the invention with built axial fan in the direction of its inflow
- FIG. 2 is an exploded view of the wall ring according to the invention shown in FIG.
- Fig. 4 is a perspective view of the inventive wall ring according to FIG. 1 in the direction of its outflow opening in the unassembled state of its part body.
- An inventive wall ring consists, as shown in the figures, of an annular body 1 with a central longitudinal axis X-X, with a
- Ring body 1 has between the two openings 2, 3 an annular wall 4, which is a perpendicular to the central longitudinal axis X-X
- an axial fan 6 is located within the wall ring according to the invention.
- This consists of a centrally arranged in the central longitudinal axis XX electric motor 7, to which an impeller 8 is connected with fan blades 9.
- the annular wall 4 consists of an outer wall 1 1 and an inner wall 12, which enclose a cavity 13 between them.
- the annular body 1 according to the invention is divided by a division perpendicular to the central longitudinal axis X-X into two partial bodies 14,16, namely a partial body 14, which the
- Flow inlet 2 includes, and a partial body 16, the
- Flow outlet 3 includes. These two Tetl stresses 14, 16 can, due to the division perpendicular to the longitudinal axis X-X, axially joined together and moved axially apart.
- the annular body 1 according to the invention consists of plastic. Due to the formation of the cavity in the annular wall 4 and the use of the plastic material of the inventive annular body 1 already acts thermally insulating, because on the one hand is a condensation and
- the cavity 3 acts thermally insulating.
- the outer wall 11 and the inner wall 12 of the two partial bodies 14, 16 have complementary stepped profiles 22, 23 at their outer wall sections 17, 18 and their inner wall sections 19, 21 at their abutting ends that an overlap in the area of the stepped profiles 22, 23 is given. This results in a seal between the outer wall sections 17, 18 and the inner wall sections 19, 21 in the region of their abutting ends and a mutual
- the outer wall portions 17, 18 and the inner wall portions 9, 21 of the split bodies 14, 16 each have different lengths, so that the outer wall portions 17, 18 are of different lengths, and the
- Inner wall portions 19, 21 are also different lengths, in such a way that a longer outer wall portion 17, a shorter inner wall portion 19 is opposite and the shorter outer wall portion 18 a longer
- Inner wall section 21 As can be seen in particular from FIG. 3, it is expedient according to the invention if the inner wall 12 is convexly curved, then that a flow profile is present, wherein at the apex of the
- Curvature course a very small increase in the curvature curve is formed on both sides of the vertex.
- the outer wall 1 1 is suitably made as a flat, parallel to the longitudinal axis X-X extending wall profile. 2, 3 and 4 can be provided according to the invention, that within the cavity 13, an electric heating element 24 is arranged, which is formed in the illustrated embodiment as a heating tape, which is expediently is an electrical resistance heating.
- the electric heating element 24 is arranged such that it bears against the inner wall 12 at its inner side facing the cavity 13.
- Fastening pin 26 is formed, which include with the respective inner wall portion 19, 21 a gap whose gap width is greater than / equal to the thickness of the heating element 24 to be used.
- the mounting pins 26 of the two Operagroper 14, 16 circumferentially staggered against each other in the assembled state of the body part 14, and their length is suitably greater than the width of the particular band-shaped heating element 24.
- the band-shaped heating element 24 is for mounting under the mounting pin 26th pushed and is fixed by these axially and circumferentially. For this purpose, it is particularly advantageous if the mounting pins 26 overlap the heating element 24 on both sides of its circumferentially extending longitudinal edges.
- the two body parts 14, 16 are advantageously by several
- a mounting flange 28 is formed on one of the part bodies 14, 16 in the present Embodiment on the Einströmungseintrittsö réelle 2 comprehensive part body 14 circumferentially.
- This mounting flange 28 is formed from an edge web radially projecting to the longitudinal axis XX.
- At this mounting flange 28 are preferably four circumferentially uniformly distributed mounting tabs 29 having holes for passing corresponding fasteners.
- the electric motor 7 is held by a preferably planar wire guard 31, in particular made of metal, wherein the wire guard 31 is secured by means of struts 32 on the body part 14 on the circumference of the flow inlet opening 2.
- a rectangular housing 33 is formed between two fastening tabs 29 on the annular body 1, which consists of two housing sections 34, 35, wherein the one housing section 34 on
- Part body 14 and the other housing portion 35 is integrally formed on the partial body 16.
- the housing 33 has a parallel to a tangent to the
- Part body 14 and the housing portion 34 to the outside, via
- the housing 33 serves for contacting the electrical
- the screwing of the fastening screws 27 takes place in the same way. According to the invention, it may also be advantageous if in the center of
- a cap 39 is mounted on the electric motor 7 through an opening of the protective grid 31 therethrough, which serves as a jet water protection in a cleaning.
- This cover 39 is preferably releasably secured by a particular latching connection.
- Hollow chamber reduces the tendency to icing in fans installed in refrigerators and evaporators, reduces the heat input into the heat exchanger, and by the also insertable heating element 24 icing is prevented.
- the non-curved according to the invention, d. H. Level metal protective grille 31 can also be easily cleaned mechanically in the event of icing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Resistance Heating (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012109546.9A DE102012109546A1 (de) | 2012-10-08 | 2012-10-08 | "Wandring für einen Axialventilator" |
| PCT/EP2013/069145 WO2014056677A1 (de) | 2012-10-08 | 2013-09-16 | Wandring für einen axialventilator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2904272A1 true EP2904272A1 (de) | 2015-08-12 |
| EP2904272B1 EP2904272B1 (de) | 2018-09-05 |
Family
ID=49212766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13763236.0A Active EP2904272B1 (de) | 2012-10-08 | 2013-09-16 | Wandring für einen axialventilator |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20150308455A1 (de) |
| EP (1) | EP2904272B1 (de) |
| CN (1) | CN104736852B (de) |
| DE (1) | DE102012109546A1 (de) |
| ES (1) | ES2699953T3 (de) |
| WO (1) | WO2014056677A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013015985B4 (de) * | 2013-09-25 | 2016-08-18 | Stego-Holding Gmbh | Lüftereinrichtung |
| DE102013223983A1 (de) * | 2013-11-25 | 2015-05-28 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Lüfterbaueinheit |
| DE102015103499A1 (de) * | 2015-03-10 | 2016-09-15 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Ventilatorgehäuse mit Heizbandkanal |
| DE102015103501A1 (de) * | 2015-03-10 | 2016-09-15 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Mehrteiliges Gehäuse eines Ventilators |
| DE102018128823A1 (de) * | 2018-11-16 | 2020-05-20 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Diagonalventilator mit Heizelement |
| DE202020101263U1 (de) * | 2020-03-06 | 2020-03-18 | Konvekta Aktiengesellschaft | Verbesserte Anlage zur Luftbehandlung und Lüftereinheit dazu |
| FR3118989B1 (fr) * | 2021-01-21 | 2023-03-03 | Safran Aircraft Engines | Couronne de ventilation du support de palier arrière d'une turbomachine d'aéronef |
| WO2023183105A1 (en) * | 2022-03-22 | 2023-09-28 | Rheem Manufacturing Company | Axial fan for an air handling unit |
| US11933346B1 (en) * | 2023-05-12 | 2024-03-19 | Nokia Solutions And Networks Oy | Removable shoulder screw |
| DE102024131865A1 (de) | 2024-10-31 | 2026-04-30 | Daimler Truck AG | Axiallüfter für ein Fahrzeug und Verfahren zu dessen Betrieb |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2950859A (en) * | 1956-12-03 | 1960-08-30 | Meier Electric And Machine Com | Fan housing and protective grill |
| US4123197A (en) * | 1977-02-04 | 1978-10-31 | Allware Agencies Limited | Fan with air directing grille |
| US4657483A (en) * | 1984-11-16 | 1987-04-14 | Bede James D | Shrouded household fan |
| US5377300A (en) * | 1992-11-04 | 1994-12-27 | Watkins-Johnson Company | Heater for processing gases |
| DE19951369A1 (de) * | 1999-10-26 | 2001-05-10 | Bosch Gmbh Robert | Gebläse |
| DE50109139D1 (de) * | 2000-10-25 | 2006-05-04 | Eichenauer Heizelemente Gmbh | Pumpe mit einem beheizbaren Gehäuse |
| ATE412111T1 (de) * | 2001-08-30 | 2008-11-15 | Cooper Standard Automotive Inc | Erwärmtes kurbelgehäuseentlüftungsventil und erwärmte schlauchanordnungen |
| ITTO20020419A1 (it) * | 2002-05-17 | 2002-08-16 | Cosmos Italia S R L | Circuito di comando dotato di dispositivi riscaldanti o raffreddanti,in particolare per ventilatori a corrente continua. |
| US7819563B2 (en) * | 2005-03-16 | 2010-10-26 | Eric Neal Hardgrave | Fan Chandelier |
| US7530783B1 (en) * | 2005-10-28 | 2009-05-12 | Vornado Air Circulation Systems, Inc. | Grill mounting and retaining assembly |
| DE102007017271A1 (de) * | 2007-04-12 | 2008-10-16 | BSH Bosch und Siemens Hausgeräte GmbH | Pumpe mit Heizeinrichtung |
| JP2009108714A (ja) * | 2007-10-29 | 2009-05-21 | Calsonic Kansei Corp | ファンシュラウド |
| US20100111698A1 (en) * | 2008-11-06 | 2010-05-06 | Bryce Wiedeman | Fan with locking ring |
| FR2947591B1 (fr) * | 2009-07-02 | 2011-07-22 | Valeo Systemes Thermiques | Ensemble forme d'un support-moteur et d'une bague de reception de ce dernier |
| TWI400781B (zh) * | 2010-05-26 | 2013-07-01 | 晶致半導體股份有限公司 | A semiconductor package with a cooling fan and a method for manufacturing the same, and a stacked structure of the package |
| GB2482548A (en) * | 2010-08-06 | 2012-02-08 | Dyson Technology Ltd | A fan assembly with a heater |
| GB2482549A (en) * | 2010-08-06 | 2012-02-08 | Dyson Technology Ltd | A fan assembly with a heater |
| DE102010045899B3 (de) * | 2010-09-17 | 2012-02-16 | Ingo Schehr | Ventilatoreinheit mit einem elektrischen Axialventilator |
| JP2012082580A (ja) * | 2010-10-07 | 2012-04-26 | Hitachi Constr Mach Co Ltd | 建設機械 |
| US9157453B2 (en) * | 2011-08-23 | 2015-10-13 | Ctb, Inc. | Plastic fan shroud and cone assembly and method |
| DE102012108449A1 (de) * | 2012-09-11 | 2014-03-13 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Wandring eines Lüfters mit Heizelement |
| DE102012109518A1 (de) * | 2012-10-08 | 2014-04-10 | Ebm-Papst Mulfingen Gmbh & Co. Kg | "Ventilator sowie zugehöriges Trägerelement" |
| DE102012109544A1 (de) * | 2012-10-08 | 2014-04-10 | Ebm-Papst Mulfingen Gmbh & Co. Kg | "Wandring mit Wandringheizung für Axiallüfter" |
| DE102012109542A1 (de) * | 2012-10-08 | 2014-04-10 | Ebm-Papst Mulfingen Gmbh & Co. Kg | "Strömungsgleichrichter für einen Axiallüfter" |
| DE102012109516B4 (de) * | 2012-10-08 | 2016-08-04 | Ebm-Papst Mulfingen Gmbh & Co. Kg | "Trägerelement für einen Ventilator sowie damit ausgestatteter Ventilator" |
| USD771228S1 (en) * | 2013-12-30 | 2016-11-08 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Fan |
-
2012
- 2012-10-08 DE DE102012109546.9A patent/DE102012109546A1/de not_active Withdrawn
-
2013
- 2013-09-16 US US14/430,481 patent/US20150308455A1/en not_active Abandoned
- 2013-09-16 ES ES13763236T patent/ES2699953T3/es active Active
- 2013-09-16 CN CN201380052618.6A patent/CN104736852B/zh active Active
- 2013-09-16 EP EP13763236.0A patent/EP2904272B1/de active Active
- 2013-09-16 WO PCT/EP2013/069145 patent/WO2014056677A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| ES2699953T3 (es) | 2019-02-13 |
| DE102012109546A1 (de) | 2014-04-10 |
| CN104736852A (zh) | 2015-06-24 |
| CN104736852B (zh) | 2017-05-10 |
| EP2904272B1 (de) | 2018-09-05 |
| US20150308455A1 (en) | 2015-10-29 |
| WO2014056677A1 (de) | 2014-04-17 |
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