EP0353744B1 - Refroidisseur d'air - Google Patents

Refroidisseur d'air Download PDF

Info

Publication number
EP0353744B1
EP0353744B1 EP89114296A EP89114296A EP0353744B1 EP 0353744 B1 EP0353744 B1 EP 0353744B1 EP 89114296 A EP89114296 A EP 89114296A EP 89114296 A EP89114296 A EP 89114296A EP 0353744 B1 EP0353744 B1 EP 0353744B1
Authority
EP
European Patent Office
Prior art keywords
air
air guide
electrical motor
air cooler
cooler according
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.)
Expired - Lifetime
Application number
EP89114296A
Other languages
German (de)
English (en)
Other versions
EP0353744A2 (fr
EP0353744A3 (en
Inventor
Paul Jyrek
Helmut Pietsch
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.)
KUEBA KAELTETECHNIK GMBH
Original Assignee
Kueba Kaltetechnik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6360274&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0353744(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kueba Kaltetechnik GmbH filed Critical Kueba Kaltetechnik GmbH
Priority to AT89114296T priority Critical patent/ATE83048T1/de
Publication of EP0353744A2 publication Critical patent/EP0353744A2/fr
Publication of EP0353744A3 publication Critical patent/EP0353744A3/de
Application granted granted Critical
Publication of EP0353744B1 publication Critical patent/EP0353744B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067—Evaporator fan units
    • 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
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • 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
    • F04D29/5806—Cooling the drive system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0681—Details thereof

Definitions

  • the invention relates to an air cooler, consisting of a housing having an air inlet and an air outlet side, in which a lamella packet through which coolant pipes are provided, a blower driven by an electric motor, which is arranged in the flow direction of the air behind the lamella packet, and one Air guiding device mounted on the air outlet side in a collar-shaped housing attachment, which is arranged between the fan rotor and the electric motor freely accessible on the outflow side.
  • An air cooler of this type is known from US-A-45 48 548.
  • an air guiding device is used, which consists of radially extending guide vanes, which are provided as flow profiles with flow-reflecting surfaces and are positioned at an angle with respect to the inflow direction of the blower in order to eliminate the rotational component of the flow generated by the blower rotor.
  • the guide vanes are fastened with their radially inner ends to a cylindrical part which gives the motor concentrically and has an annular bottom surface which is screwed to a flange of the motor.
  • the fan rotor has a plurality of blades, which are attached with their radially inner ends to a cylindrical support part with a closed bottom, which partially engages over the electric motor and prevents the air flow generated from being directed against the electric motor.
  • a disadvantage of this known air cooler in addition to the comparatively complicated structure, is above all that the engine is shielded from the cold air flow, the existing shields in the hub area of the air cooler can cause turbulence in the flow and increasing engine temperatures lead to a reduction in the engine life.
  • the object of the invention is to provide an air cooler of the type specified at the outset in such a way that, on the one hand, any type of reverse or short circuit flow around the housing and / or the motor is prevented and a far-reaching parallel flow is generated, and on the other hand, disruptive heating of the drive motor during the Prevents operation and thus its life is increased.
  • the air guiding device is designed as an air guiding grille and has a web mesh structure with essentially square individual openings to form a parallel flow, that the air baffle has a continuous recess through which the electric motor extends, that the blower rotor is attached to the electric motor in such a way that the face of the electric motor opposite the blower rotor has a direct flow against it, and the blower and the air guide grille interact in such a way that a flow conforming to the electric motor housing is formed.
  • the air baffle not only ensures that any backflow around the housing to the air inlet side is prevented, but it is also achieved by the targeted flow against the electric motor extending through the opening in the air baffle that, on the one hand a very pronounced inflow and thus cooling of the motor is ensured even with increasing load on the fan, and on the other hand any backflow in the fan hub area is also excluded.
  • the webs of the air guide grille have a height extending in the direction of flow in the range from 5 to 20 mm, in particular in the range from 10 to 15 mm.
  • the blower is preferably also shortened by means of a shorter one in the flow direction in front of the air guide grille and straight struts attached, which leads to a simple, inexpensive and low-vibration overall structure.
  • the cylindrical housing attachment can also serve as a connecting piece for a textile hose, the air discharge via the hose being promoted by the air guide grille being substantially uniform over the entire cross section.
  • the air baffle can be made of a plastic material, as well as used in a metallic design.
  • a heat-conducting connection e.g. B.
  • a press fit connection is created with the drive motor, so that the air grille acts simultaneously as an additional engine cooling surface.
  • an evaporator in the form of a plate pack 2 is arranged, which is penetrated by pipes carrying coolant and is also equipped with a defrosting device.
  • the preferably cylindrical housing extension 3 is closed off from the outside by an air guide grille 5.
  • the air baffle has a web mesh structure and preferably has square individual openings.
  • the defined inflow of the motor also means that a vacuum is formed on the back of the motor due to the stall effects that occur, which ensures that the flow clings to the motor housing and a defined flow separation takes place in the blow-out direction, thereby eliminating any disruptive backflow effects.
  • the measures according to the invention result in a synergistic interaction of individual effects, which leads to the fact that the time period between the required defrosting processes becomes longer, energy savings can thereby be achieved and the economy of the entire air cooler is further improved by the longer service life of the drive motor which is additionally achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Compressor (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Claims (7)

  1. Refroidisseur d'air, comprenant un boîtier (1) présentant un côté d'entrée d'air et un côté de sortie d'air, dans lequel est prévu un empilement de lamelles (2) traversées par des tubes qui conduisent du réfrigérant, un ventilateur (4) entraîné par un moteur électrique (6) et agencé derrière l'empilement de lamelles (2) dans le sens d'écoulement d'air, et un dispositif de guidage d'air (5) monté côté sortie d'air dans une extension du boîtier en forme de collerette (3), ledit dispositif de guidage d'air étant agencé entre le rotor (4) de ventilateur et le moteur électrique (6), lequel est monté du côté aval et librement accessible, caractérisé en ce que le dispositif de guidage d'air est réalisé sous la forme d'une grille de guidage d'air (5) et possède une structure grillagée à ailettes présentant des ouvertures individuelles de forme sensiblement carrée afin de former un écoulement parallèle, en ce que la grille de guidage (5) présente une ouverture traversante à travers laquelle s'étend le moteur électrique (6), en ce que le rotor (4) de ventilateur (4) est monté de telle manière sur le moteur électrique (6) que la face d'extrémité du moteur électrique (6) située en regard du rotor (4) de ventilateur est directement atteinte par le flux d'air, et en ce que le ventilateur (4) et la grille de guidage d'air (5) coopèrent de telle manière qu'il se forme un écoulement qui lèche le boîtier du moteur électrique.
  2. Refroidisseur d'air selon la revendication 1, caractérisé en ce que la hauteur des ailettes qui délimitent les ouvertures individuelles est d'environ 10 à 15 mm.
  3. Refroidisseur d'air selon la revendication 1, caractérisé en ce que l'extension du boîtier (3) est réalisée de manière cylindrique.
  4. Refroidisseur d'air selon l'une quelconque des revendications précédentes, caractérisé en ce que le ventilateur (4, 5) est fixé dans l'extension (3) du boîtier au moyen de nervures (7) disposées devant la grille de guidage d'air (5) dans la direction d'écoulement d'air, lesdites nervures étant en particulier droites.
  5. Refroidisseur d'air selon l'une quelconque des revendications précédentes, caractérisé en ce que l'extension (7) cylindrique du boîtier est réalisée sous la forme d'un manchon d'extension souple.
  6. Refroidisseur d'air selon l'une quelconque des revendications précédentes, caractérisé en ce que la grille de guidage d'air (5) est réalisée en matière plastique.
  7. Refroidisseur d'air selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la grille de guidage d'air (5) est réalisée en métal et est reliée au moteur d'entraînement (6) en conduction thermique.
EP89114296A 1988-08-04 1989-08-02 Refroidisseur d'air Expired - Lifetime EP0353744B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89114296T ATE83048T1 (de) 1988-08-04 1989-08-02 Luftkuehler.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3826588A DE3826588A1 (de) 1988-08-04 1988-08-04 Luftkuehler
DE3826588 1988-08-04

Publications (3)

Publication Number Publication Date
EP0353744A2 EP0353744A2 (fr) 1990-02-07
EP0353744A3 EP0353744A3 (en) 1990-03-28
EP0353744B1 true EP0353744B1 (fr) 1992-12-02

Family

ID=6360274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89114296A Expired - Lifetime EP0353744B1 (fr) 1988-08-04 1989-08-02 Refroidisseur d'air

Country Status (5)

Country Link
EP (1) EP0353744B1 (fr)
AT (1) ATE83048T1 (fr)
DE (2) DE3826588A1 (fr)
ES (1) ES2037351T3 (fr)
GR (1) GR3006642T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4030452A1 (de) * 1990-09-26 1992-04-02 Schmitz Kuehler Baierbrunn Luftkuehler
DE102012007707B4 (de) 2012-04-19 2017-03-30 Rittal Gmbh & Co. Kg Kühlgerät für die Schaltschrankkühlung
CN104848636A (zh) * 2015-06-08 2015-08-19 上海海洋大学 一种提高冷库气流均匀性的散流隔板

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB584657A (en) * 1945-01-19 1947-01-20 Michael Thaddius Adamtchik Improvements in or relating to axial flow screw fans and the like
FR1221137A (fr) * 1958-02-26 1960-05-31 C V Hill & Company Bloc à évaporateur et ventilateur pour appareils réfrigérateurs
ZA793332B (en) * 1979-04-30 1981-02-25 D Rusth Air circulating device
US4548548A (en) * 1984-05-23 1985-10-22 Airflow Research And Manufacturing Corp. Fan and housing
DE8802501U1 (de) * 1988-02-26 1988-04-14 Jenner, Herbert, 5459 Anhausen Axiallüfter mit Luftleitvorsatz

Also Published As

Publication number Publication date
ATE83048T1 (de) 1992-12-15
EP0353744A2 (fr) 1990-02-07
GR3006642T3 (fr) 1993-06-30
EP0353744A3 (en) 1990-03-28
ES2037351T3 (es) 1993-06-16
DE58902866D1 (de) 1993-01-14
DE3826588A1 (de) 1990-02-08

Similar Documents

Publication Publication Date Title
DE69722828T2 (de) Gebläserad mit axiallufteinlassöffnung
DE60315959T2 (de) Motorgekühlte lüfteranordnung mit überlappenden flügeln
DE69620669T2 (de) Lärmdämpfungsgerät eines Lüfters
DE10204830B4 (de) Wärmeableitsystem mit funktional unterstützendem Gebläseschutz
EP3255281B1 (fr) Ventilateur avec aubes de diffuseur tandem
DE2657840B2 (de) Kühlanlage für Brennkraftmaschinen
DE102015205415A1 (de) Kühlerlüfteranordnung für ein Kühlsystem eines flüssigkeitsgekühlten Motors eines Fahrzeugs
DE19751042A1 (de) Vorrichtung zum Einleiten und Abgeben von Kühlluft
DE10209097A1 (de) Motorbetriebenes Werkzeug
EP1941164B1 (fr) Dispositif de transport d'un flux d'air de refroidissement
DE202011110551U1 (de) Kühlerzarge und Kühlerverbund
EP0353744B1 (fr) Refroidisseur d'air
DE3028606A1 (de) Zum einbau in rohrleitungen, kanaele oder kanalaehnliche gehaeuse bzw. in lueftungs- und klimageraete bestimmte ventilatoreinheit
DE2732682A1 (de) Luftgekuehlter elektromotor
EP0477612B1 (fr) Refroidisseur d'air
DE69012995T2 (de) Lüfter für eine elektrisch betriebene maschine.
DE1941757U (de) Ventilator.
EP1367262B1 (fr) Ventilateur en particulier pour refroidisseurs d'air avec capot de ventilateur
DE2530741C3 (de) Geräuscharme Kühlanlage für Fahrzeuge, insbesondere für Lastkraftwagen
DE8816827U1 (de) Luftkühler mit Leitgitter
DE3905092C2 (fr)
EP1369595B1 (fr) Stator pour ventilateurs en particulier pour refroidisseurs d' air
DE3206798C2 (de) Schaufelrad für Radiallüfter
DD252485A1 (de) Oberflaechenbelueftete elektrische gleichstrommaschine
DE9402736U1 (de) Pumpenträger mit integriertem Ölkühler

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE ES FR GB GR IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE ES FR GB GR IT LI NL

17P Request for examination filed

Effective date: 19900514

17Q First examination report despatched

Effective date: 19910123

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: KUEBA KAELTETECHNIK GMBH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB GR IT LI NL

REF Corresponds to:

Ref document number: 83048

Country of ref document: AT

Date of ref document: 19921215

Kind code of ref document: T

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19921130

ET Fr: translation filed
REF Corresponds to:

Ref document number: 58902866

Country of ref document: DE

Date of ref document: 19930114

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3006642

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2037351

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: FRIMETAL S.A.

Effective date: 19930630

NLR1 Nl: opposition has been filed with the epo

Opponent name: FRIMETAL S.A.

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: FRIMETAL S.A.

Effective date: 19930630

NLR1 Nl: opposition has been filed with the epo

Opponent name: FRIMETAL S.A.

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

PLBO Opposition rejected

Free format text: ORIGINAL CODE: EPIDOS REJO

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19950312

NLR2 Nl: decision of opposition
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080828

Year of fee payment: 20

Ref country code: CH

Payment date: 20080814

Year of fee payment: 20

Ref country code: NL

Payment date: 20080813

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080826

Year of fee payment: 20

Ref country code: AT

Payment date: 20080814

Year of fee payment: 20

Ref country code: FR

Payment date: 20080813

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080821

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20081030

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20080826

Year of fee payment: 20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20090801

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20090802

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090803

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090801

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090802

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090803