EP0353744A2 - Refroidisseur d'air - Google Patents

Refroidisseur d'air Download PDF

Info

Publication number
EP0353744A2
EP0353744A2 EP89114296A EP89114296A EP0353744A2 EP 0353744 A2 EP0353744 A2 EP 0353744A2 EP 89114296 A EP89114296 A EP 89114296A EP 89114296 A EP89114296 A EP 89114296A EP 0353744 A2 EP0353744 A2 EP 0353744A2
Authority
EP
European Patent Office
Prior art keywords
air
cooler according
air cooler
baffle
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
EP89114296A
Other languages
German (de)
English (en)
Other versions
EP0353744B1 (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(A2) "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

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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 guide grille attached to the air outlet.
  • the object of the invention is to design a ventilation cooler of the type specified at the outset in such a way that, on the one hand, any type of backflow or short-circuit flow is prevented and, on the other hand, the thermal load on the drive motor is reduced.
  • the air baffle has a web mesh structure, the individual openings preferably being polygonal or circular and in particular having a square shape.
  • the webs can have a height in the range from 5 to 20 mm, in particular in the range from 10 to 15 mm.
  • This 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 arranged outside the air baffle that, on the one hand, even with increasing load on the fan, it is still very much pronounced flow and thus cooling of the motor is ensured and on the other hand any backflow in the fan hub area is excluded.
  • the air guide grille is held in a collar-shaped, in particular cylindrical, housing attachment.
  • the blower is also preferably made shorter 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 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)
  • Separation By Low-Temperature Treatments (AREA)
  • Compressor (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Sorption Type Refrigeration Machines (AREA)
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 true EP0353744A2 (fr) 1990-02-07
EP0353744A3 EP0353744A3 (en) 1990-03-28
EP0353744B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013156011A1 (fr) * 2012-04-19 2013-10-24 Rittal Gmbh & Co. Kg Appareil de refroidissement pour le refroidissement d'armoires électriques
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

Families Citing this family (1)

* 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

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013156011A1 (fr) * 2012-04-19 2013-10-24 Rittal Gmbh & Co. Kg Appareil de refroidissement pour le refroidissement d'armoires électriques
US9883608B2 (en) 2012-04-19 2018-01-30 Rittal Gmbh & Co. Kg Cooling device for cooling a switchgear cabinet
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

Also Published As

Publication number Publication date
ATE83048T1 (de) 1992-12-15
EP0353744B1 (fr) 1992-12-02
GR3006642T3 (fr) 1993-06-30
ES2037351T3 (es) 1993-06-16
EP0353744A3 (en) 1990-03-28
DE58902866D1 (de) 1993-01-14
DE3826588A1 (de) 1990-02-08

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