EP2899406A1 - Module de refroidissement avec ventilateur insonoriosé - Google Patents

Module de refroidissement avec ventilateur insonoriosé Download PDF

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Publication number
EP2899406A1
EP2899406A1 EP15150394.3A EP15150394A EP2899406A1 EP 2899406 A1 EP2899406 A1 EP 2899406A1 EP 15150394 A EP15150394 A EP 15150394A EP 2899406 A1 EP2899406 A1 EP 2899406A1
Authority
EP
European Patent Office
Prior art keywords
cooling module
absorber
wall
module according
housing
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
Application number
EP15150394.3A
Other languages
German (de)
English (en)
Other versions
EP2899406B1 (fr
Inventor
Stefan-Georg Backhaus
Arno Wetzstein
Gunther Neidlein
Benjamin Maerz
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2899406A1 publication Critical patent/EP2899406A1/fr
Application granted granted Critical
Publication of EP2899406B1 publication Critical patent/EP2899406B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/665—Sound attenuation by means of resonance chambers or interference
    • 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
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/19—Two-dimensional machined; miscellaneous
    • F05D2250/191—Two-dimensional machined; miscellaneous perforated
    • 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
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F05D2260/963—Preventing, counteracting or reducing vibration or noise by Helmholtz resonators

Definitions

  • the invention relates to a cooling module or a cooling unit according to the preamble of patent claim 1.
  • Such cooling modules have a fan wheel, via which ambient air is conveyed through a cooler of the cooling module.
  • a coolant which was previously used away from the cooling module for cooling, recycled in a circuit to the radiator and cooled therein again. Then the coolant can be used again for cooling.
  • Such cooling modules are mounted, for example, on roofs of rail vehicles in which people are located. Then the coolant is conveyed into the components of the rail vehicle to be cooled.
  • a disadvantage of such cooling modules is that disturbing noises of the fan can be reinforced via the housing of the cooling module and transmitted to the interior and the environment.
  • the invention is based on the object to provide a cooling module, in which these disadvantages are avoided.
  • the claimed cooling module has a housing and a rotating fan wheel (for example, paddle wheel).
  • a rotating fan wheel for example, paddle wheel.
  • at least one wall section of the housing has, according to the invention, a plurality of chambers, which are delimited at least on the inside by a micro-perforated absorber extending over a plurality of chambers and furthermore by partitions arranged in the interior of the wall section.
  • the micro-perforated absorber has a multiplicity of comparatively small through-holes.
  • the chambers are separated by the partitions.
  • the passage recesses have a proportion of an area of the absorber of a few percent (in particular less than 8 percent).
  • the passage openings are micro slots.
  • the wall portion comprises an outer sheet wall member or wall surface and an inner sheet wall member or wall surface.
  • the micro-perforated absorber forms at least the inner wall element or the inner wall surface.
  • the outer wall element of the wall section is closed.
  • the chambers are bounded on the inside by the absorber and on the outside by a sound-reflecting wall element.
  • individual or all wall sections of the housing can be lined inside with the absorber and provided with the chambers for sound insulation.
  • the outer wall element of the wall section is formed by an absorber.
  • the chambers are on the outside and inside of absorbers and further limited by the partitions.
  • the outer sound system boundary of the cooling module is formed by micro-perforated absorber.
  • the wall section has one or more central planar wall elements or middle wall surfaces.
  • two or more levels of chambers are formed in the wall portion.
  • the distances between the various wall elements can also be dimensioned differently and thus adapted to the sound frequency to be insulated.
  • the planes thus formed may have different thickness and thus chamber depth.
  • the partitions may form a polygonal honeycomb structure according to a first embodiment.
  • the partitions may form a rectangular or square grid structure according to a second embodiment.
  • the partitions are firmly connected to the sheet-like wall elements.
  • they can be glued, welded, soldered or elastic sealing between the Be clamped wall elements. This prevents an acoustic "short circuit" between the partitions.
  • the housing has a frame structure, so that there is a box-like structure of the housing. Then, the at least one invention provided with chambers wall portion is inserted into a frame of this frame structure and / or attached to pins of the frame structure.
  • the fan forms a radial fan, which sucks the ambient air axially via a radiator and radially dissipates.
  • the fan can also form an axial fan.
  • further micro-perforated absorber elements can be arranged for further sound insulation on the circumference of the fan wheel, which have a specific angular and radial distance to the fan.
  • the further absorber elements can be arranged in one or more rows.
  • the other absorber elements can have air-conducting function.
  • the wall section or further absorber foils designed according to the invention with absorber and chambers can be arranged parallel or along an air flow.
  • the absorber can be made of metal (for example, sheet metal).
  • the absorber can be made of plastic.
  • the absorber may be in one piece over a certain surface area and thereby form a plurality of inner planar wall elements and have abutment sections arranged therebetween.
  • the abutment sections serve to abut and attach the absorber to or on the outer wall element (s). So is the absorber in the chosen distance to the outer wall element, whereby the depth of the chambers is determined.
  • the absorber is formed from a sheet and has a plurality of parallel bending points. Then two mutually adjacent bending points in pairs limit a contact portion or an outer wall element.
  • the curved inner wall element and the flat outer wall element can form spaces which are each divided by the partitions into a plurality of chambers.
  • the cooling module may have a further fan wheel, wherein one or more wall sections according to the invention (also) are arranged between them.
  • the housing may have or limit a blow-out channel, which is arranged in the flow direction of the air flow behind the fan.
  • the exhaust duct for soundproofing have a wall section according to the invention.
  • the housing may include or limit an intake passage, which is arranged in the flow direction of the air flow in front of the fan.
  • the intake duct (also) for soundproofing may have a wall section according to the invention.
  • the size of the chambers can be designed as a function of a blade airfoil frequency of the rotating fan wheel to be insulated.
  • the blade frequency can be determined from the primary rotational frequency (for example, nominal rotational frequency) of the fan and the number of blades of the fan.
  • the blade leaf frequency can be 440 Hz in one application.
  • the size of the chambers is defined by the distance between the wall sections to each other and the distance between the partitions.
  • the cooling module according to the invention has carriers which are designed to fasten the cooling module to a roof, in particular a rail vehicle.
  • FIG. 1 shows a first embodiment of the cooling module according to the invention in a perspective view. It has two cross beams 1 which are mounted transversely to the direction of travel on a roof of a rail vehicle (both not shown).
  • the cross member 1 carry a radiator 2, an intermediate housing 4 and a Lüfterradgephinuse 6 with a blow-out 10th
  • coolant is passed through the radiator 2 via a coolant pump 8 and from there into an interior space of the rail vehicle (both not shown).
  • a radial fan wheel (cf. FIG. 2) arranged in the interior of the fan wheel housing 6 is used.
  • FIG. 2 Ambient air through the Cooler 2 and sucked through the intermediate housing 4 in the Lüfterradgephaseuse 6.
  • the radial fan is driven by an electric motor 16.
  • the ambient air is discharged through the blow-out channel 10 formed thereon to the environment.
  • the ambient air after which it has absorbed heat in the radiator 2 of the supplied coolant, passed through a housing of the cooling module, which consists essentially of the intermediate housing 4, the Lüfterradgephaseuse 6 and the exhaust duct 10.
  • FIG. 2 shows the cooling module according to FIG. 1 in a partially sectioned side view.
  • a section through the fan wheel housing 6 is shown extending beyond the coolant pump 8 and the two cross members 1 shown in cross section.
  • the radial fan 12 is disposed adjacent to a wall portion 14 of the Lüfterradgephaseuses 6. The ambient air flows axially through the radial fan 12 and leaves it radially.
  • the wall portion 14 is formed integrally with a wall portion of the blow-out channel 10. Furthermore, a cover 20 and a bottom 22 of the Lüfterradgepuruses 6 are shown, wherein the bottom 22 is integrally formed with an angled bottom 24 of the Ausblaskanals 10.
  • each have a micro-perforated absorber 28 is fixed, the absorber 28 of the lid 20 and the bottom 24 cut are shown, while the absorber 28 of the wall portion 14 is shown in a view.
  • the absorbers 28 are made of aluminum sheet and are angled several times according to a regular scheme. Due to the bends, each absorber 28 has strip-shaped abutment sections 30 which are fastened to the fan wheel housing 6 and lie substantially flat on the wall section 14 or on the floor 24 or on the cover 20.
  • Adjacent strip-shaped sections are formed, between each of which a main portion 32 of the absorber 28 is arranged.
  • the main sections 32 are preferably arranged parallel to the wall section 14 or to the bottom 24 or to the cover 20. This results in a plurality of flat spaces 34, which are connected to the interior of the housing 6 only via a plurality of micro slots which penetrate the absorber 28.
  • FIGS. 3a and 3b each show an embodiment of regular structures of partitions 35; 135, which are placed inside the rooms 34 to separate chambers 36; 136 to form. More specifically, the first embodiment has lattice-like partition walls 35, while the partition walls of the second embodiment are arranged such that honeycomb-like chambers 136 result. In both embodiments, the height of the partition walls 35; 135 and thus the chambers 36; 136 of the height of the spaces 34, which is defined by the distance of the main portions 32 of the absorber 28 from the outer wall portion 14 and from the bottom 24 and the lid 20. This chambers are formed, the size of which is designed as a function of the sound frequency to be damped.
  • FIG. 4 shows a second embodiment of the cooling module according to the invention in a partially sectioned view.
  • the cooling module has, in addition to the first radiator 2 according to the preceding embodiment, a second radiator 102, which is separated from the inflowing ambient air (in FIG. 4 from left to right) is flowed through before it flows through the first radiator 2, the intermediate housing 4 and the Lüfterradgephaseuse 6. Furthermore, the second embodiment has a coolant filter 144.
  • FIG. 4 It is shown that the absorbers 28 are fastened via their abutment sections 30 and via rivet nuts 146 to the respective housing 4, 6.
  • the riveting nuts 146 penetrate the walls and bottoms and ceilings of the housings 4, 6.
  • Some wall sections of the housings 4, 6 have on their inside the absorbers 28, through which the spaces 34 are formed, into the grid-like or honeycomb-like regular structures according to the invention are fitted from partitions for chamber formation.
  • FIG. 5 shows a housing 206 of a third embodiment of the cooling module according to the invention in a schematic perspective view. It is designed as a frame construction and has profiles 248 along its edges. In the areas between the profiles 248, in each case a flat fitting wall section 214 is inserted.
  • FIG. 6a and 6b a wall portion 214 of the third embodiment according to FIG. 4 , More specifically shows FIG. 6a the wall section in a perspective view, During FIG. 6b shows the wall portion 214 in a side sectional view.
  • the wall sections are formed from three flat wall elements of micro-perforated absorbers 28, ie of an inner wall element 250, a central wall element 252 and an outer wall element 254. In between two levels or spaces 34 are formed, in which partitions 35; 135 and chambers 36; 136 (for example, according to one of the embodiments according to the FIGS. 3a or 3b ) are arranged.
  • the partitions 25; 135 are attached to the wall elements 250, 252, 254 so that the chambers 36; 136 are airtight except for the perforations made as micro-slots.
  • the outer wall element 254 has holes 256, over which it is attached to pins 258 of the profiles 248.
  • FIG. 7 shows the third embodiment of the cooling module according to the FIGS. 5 and 6 in a schematic sectional view. It is illustrated that the radial fan 12 conveys the ambient air radially outward. In this case, a portion of the ambient air penetrates according to the arrows through the micro slots of three additional distributed on the circumference of the radial fan 12 absorber elements 218 and three wall elements 250, 252, 254. The much larger part of the ambient air through the blow-out 10 (see FIG. 1 ) promoted to the outside.
  • a cooling module or cooling unit with a housing and with a radial fan, which serves as a fan for a radiator.
  • the housing has a sound absorber formed from an aluminum sheet absorber, which has a plurality of micro-slots.
  • the absorber inner walls of the housing are completely or partially lined, whereby spaces between the inner wall and the absorber are formed, which are divided by honeycomb or lattice-shaped partitions in chambers. The chambers are thus connected only through the micro slots with the interior of the housing and insulate the sound of the Radialzuffterrads.
  • the outer housing wall may be formed by an absorber having a plurality of micro-slots.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP15150394.3A 2014-01-22 2015-01-08 Module de refroidissement avec ventilateur insonorisé Active EP2899406B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014201058.6A DE102014201058A1 (de) 2014-01-22 2014-01-22 Kühlmodul

Publications (2)

Publication Number Publication Date
EP2899406A1 true EP2899406A1 (fr) 2015-07-29
EP2899406B1 EP2899406B1 (fr) 2021-01-06

Family

ID=52339003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15150394.3A Active EP2899406B1 (fr) 2014-01-22 2015-01-08 Module de refroidissement avec ventilateur insonorisé

Country Status (3)

Country Link
EP (1) EP2899406B1 (fr)
CN (1) CN104791304B (fr)
DE (1) DE102014201058A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117927489A (zh) * 2024-03-21 2024-04-26 浙江白马科技有限公司 花园鼓风机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017205083A1 (de) 2017-03-27 2018-09-27 Robert Bosch Gmbh Düse und Kühlaggregat

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628511A1 (de) * 1975-07-01 1977-01-20 Louis A Challis Schalldaempfer fuer geblaese
EP1980755A2 (fr) * 2007-04-09 2008-10-15 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Structure de réduction sonore dans un dispositif de ventilation
CN201461536U (zh) * 2008-12-24 2010-05-12 中国北车集团大连机车研究所有限公司 电动车组集成式冷却模块用无蜗壳离心风机组
GB2485881A (en) * 2010-11-25 2012-05-30 Gardner Denver Gmbh Blower and Silencer Arrangement
CN103362870A (zh) * 2013-07-02 2013-10-23 西安交通大学 一种吸声蜗壳低噪声离心风机
EP2778433A2 (fr) * 2013-03-15 2014-09-17 Kohler Co. Système de suppression de bruit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628511A1 (de) * 1975-07-01 1977-01-20 Louis A Challis Schalldaempfer fuer geblaese
EP1980755A2 (fr) * 2007-04-09 2008-10-15 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Structure de réduction sonore dans un dispositif de ventilation
CN201461536U (zh) * 2008-12-24 2010-05-12 中国北车集团大连机车研究所有限公司 电动车组集成式冷却模块用无蜗壳离心风机组
GB2485881A (en) * 2010-11-25 2012-05-30 Gardner Denver Gmbh Blower and Silencer Arrangement
EP2778433A2 (fr) * 2013-03-15 2014-09-17 Kohler Co. Système de suppression de bruit
CN103362870A (zh) * 2013-07-02 2013-10-23 西安交通大学 一种吸声蜗壳低噪声离心风机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117927489A (zh) * 2024-03-21 2024-04-26 浙江白马科技有限公司 花园鼓风机

Also Published As

Publication number Publication date
CN104791304B (zh) 2020-09-11
CN104791304A (zh) 2015-07-22
DE102014201058A1 (de) 2015-07-23
EP2899406B1 (fr) 2021-01-06

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