EP0254690A2 - Ortsbewegliches Klimagerät - Google Patents

Ortsbewegliches Klimagerät Download PDF

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Publication number
EP0254690A2
EP0254690A2 EP87830268A EP87830268A EP0254690A2 EP 0254690 A2 EP0254690 A2 EP 0254690A2 EP 87830268 A EP87830268 A EP 87830268A EP 87830268 A EP87830268 A EP 87830268A EP 0254690 A2 EP0254690 A2 EP 0254690A2
Authority
EP
European Patent Office
Prior art keywords
condenser
coolant fluid
framework
walls
fluid
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
EP87830268A
Other languages
English (en)
French (fr)
Other versions
EP0254690B1 (de
EP0254690A3 (en
Inventor
Giuseppe De'longhi
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.)
De Longhi SpA
Original Assignee
De Longhi SpA
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=27273841&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0254690(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from IT8682558A external-priority patent/IT1216394B/it
Priority claimed from IT8682557A external-priority patent/IT1216393B/it
Priority claimed from IT8682562A external-priority patent/IT1216395B/it
Application filed by De Longhi SpA filed Critical De Longhi SpA
Priority to AT87830268T priority Critical patent/ATE73222T1/de
Publication of EP0254690A2 publication Critical patent/EP0254690A2/de
Publication of EP0254690A3 publication Critical patent/EP0254690A3/en
Application granted granted Critical
Publication of EP0254690B1 publication Critical patent/EP0254690B1/de
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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/04—Arrangements for portability

Definitions

  • the present invention relates to a mobile air-conditioning apparatus.
  • air-conditioning for comfort is the term describing all the treatments employed to maintain the air of a room, of a blast or the like, at preset and independent conditions.
  • Possible conditions are temperature, humidity, movement, purity, composition, ionization, etc.
  • a conditioner must adjust, within certain limits, at least the first three above conditions.
  • mobile conditioners which, in order to be extremely flexible in use and therefore be easily movable from one room to another without the need for particular installations, are provided with a condenser cooled by means of a coolant fluid such as, for example, water.
  • conditioning devices must necessarily be designed taking into account a plurality of basic parameters, such as, for example, reliability in use, efficiency, autonomy of operation, ease in moving, etc.
  • conditioners are currently available on the market wherein the cooling of the condenser is obtained by spraying water upwards, by means of an impeller, against the tube nests of the condenser, which by necessity of manufacture are arranged circumferentially with respect to the impeller and in a spiral path.
  • the technical aim of the present invention is to eliminate the above described disadvantages of the prior art.
  • an important object of the present invention is to devise a mobile air-conditioning apparatus wherein the coolant fluid strikes the tube nests of the condenser uniformly and homogeneously.
  • Another important object of the present invention is to devise a mobile air-conditioning apparatus wherein the air for aspirating the vapor generated during the cooling of the condenser has a direction which is opposite to that of the coolant fluid of said condenser.
  • Still another object of the present invention is to devise a mobile air-conditioning apparatus wherein the container of the coolant fluid has a quadrangular configuration so as to have a greater capacity, outer dimensions being equal, with respect to the configuration of the conditioner.
  • Not least object of the present invention is to devise a conditioner which is provided with elements for its movement adapted to avoid increasing its dimensions, and which can furthermore operate independently and silently as a ventilator without the need to activate the refrigerating circuit.
  • a mobile air-conditioning apparatus comprising: a supporting framework for means for compressing a refrigerating fluid associated with means for the evaporation of said refrigerating fluid and connected to means for the condensation thereof communicating with said compression means, characterized in that said condenser means comprise means for the supply of a coolant fluid connected to an element for the delivery of said coolant fluid for its homogeneous distribution above a condenser.
  • the mobile air-conditioning apparatus comprises a supporting framework, indicated by the reference numeral 2, for means, generally indicated by 3, for compressing a refrigerating fluid, which are associated with means, generally indicated by 4, for the evaporation of the refrigerating fluid, which are in turn connected to means, generally indicated by 5, for the condensation of said coolant fluid, which communicate with said compression means 3.
  • the condenser means 5 comprise means 6 for the supply of a coolant fluid which are connected to a delivery element, generally indicated by 7, adapted to distribute the coolant fluid homogeneously and uniformly above a condenser 8.
  • the condenser 8 is provided with an essentially quadrangular configuration and is accommodated, together with the delivery element 7, in a containment body 9 also advantageously having a substantially quadrangular configuration.
  • the condenser 8 is provided with a plurality of tubes, each indicated by l0, which are horizontally co-planar to each other in pairs and alternately aligned vertically in pairs so as to be arrangeable in a limited space in a sufficiently large number and so as to be struck uniformly by the coolant fluid.
  • each tube l0 be struck by the coolant fluid uniformly and homogeneously, said coolant fluid is introduced, before making contact with the condenser, into the delivery element 8 and more precisely in a supply channel ll thereof having an inlet l2 at one end.
  • the channel ll is sealingly associated with a distributor element l3 which is provided, along its longitudinal extension, with a plurality of cups, each indicated by l4.
  • the cups l4 are separated from one another by means of partitions l5, and each cup is connected to the supply channel ll by means of respective holes l6.
  • Each of the cups l4 is provided with at least one first pair of overflow walls, indicated by l7, which are closer to the axis of the distributor element with respect to at least one second pair of overflow walls, indicated by l8, which are instead spaced further apart from the axis of the distributor element.
  • the two overflow walls l7 which define a pair of overflow walls, are respectively arranged on two parallel planes, whereon are also arranged the inner tubes of the condenser 8; while the overflow walls l8, which define a second pair of overflow walls, are arranged on two second mutually parallel planes of arrangement of the outer tubes of the condenser 8.
  • the counterposed outer faces of the overflow walls l7 are provided with guiding ridges 20 which also extend along the lateral surface of the supply channel ll in a direction substantially perpendicular to its axis.
  • the second pair of walls l8 instead has counterposed faces substantially provided with divergent inclinations, so as to allow the overflow of the water from each cup l4 substantially simultaneously both from the walls l8 and from the walls l7 regardless of their distance from the axis of the distribution element.
  • the outer faces of the walls l8 are furthermore provided with lateral borders 2l which prevent the lateral escape of the water to direct it exactly and uniformly over the outer tubes l0 of the condenser 8.
  • the holes l6 for communication between the cups l4 and the supply channel ll have such dimensions as to prevent any calcareous deposit from obstructing them, and should this occur in any case, consequently reducing their diameter so that the jet of water from the channel ll would enter the cups l4 at a higher pressure, small jet-­breaking discs 22 are provided spaced apart from the holes l6 to avoid the escape of the water not guided by the distributor element, and are coaxial to the holes l6 and rigidly associated with a dividing wall 23 which extends longitudinally along the entire length of the distributor element parallel to its axis.
  • the delivery element 7 is furthermore provided with a jet-breaking plate 24 which is associated therewith at a preset distance from the bottom of the cups l4 so as to not interfere with the free surface of the water present therein and at the same so as to prevent any jet of water, leaving one of the holes l6, from escaping over the walls of the cups and being lost, not being directed to strike the tubes of the condenser 8.
  • the distributor element is provided, proximate to the inlet l2 of the coolant fluid, with protection flaps, each indicated by 25 and adapted to prevent the aspiration of vapor, which determines a depression, from causing water to escape from the cups l4 improperly proximate to the inlet l2 or from causing even its aspiration.
  • the protection flaps 25 extend in the direction of the jet-breaking plate for an elevation substantially equal to the distance thereof from the edge of the distributor element, so as to create a valid barrier for the aspiration air so that it does not interfere with the water contained in said cups.
  • the channel ll is provided, on the opposite side with respect to the distributor element, with two spaced and parallel borders 60 which extend along its entire length and are adapted to facilitate the escape of drops of water from said channel without said drops following preferential paths along its base which would take them off their preset course, failing to make contact with the inner and outer tubes of the condenser.
  • the means for supplying the coolant fluid are defined by at least one quadrangular tank 26 which is removably associated with a shaped support, generally indicated by the reference numeral 27 and in turn connected to the framework 2 of the conditioner.
  • the shaped support 27 is provided, in a substantially central portion, with an accommodation 28 for the valve plug 28 of the tank 26.
  • Two recesses 30, adapted to accommodate respective resting and self-positioning feet 3l which extend to the sides of the plug 29 on the tank 26, are provided laterally with respect to the accommodation 28.
  • the tank 26 is furthermore provided with two enlarged portions 32 adapted to rotatably engage in respective semicircular accommodations 33 provided on the shaped seat 27, so as to allow the oscillation of the tank to facilitate its resting in said shaped seat and, at the same time, its extraction from the conditioner in order to fill it with coolant liquid also by virtue of a flexible tube 6l in its interior.
  • the central one 34 whereof has a reduced height so as to act on the valve of the plug 29 of the tank and at the same time allow the outflow of the coolant liquid, while the remaining two lateral pins 35 act as rests for said plug.
  • the accommodation 28 is furthermore conveniently connected to an elongated tray 37, from an end portion whereof draws a known pump 38 adapted to send the fluid flowing out of the tank 26 and present in the elongated tray 37 to the delivery element 7.
  • said cup is provided, below the condenser, on its bottom, with a sound-absorbing element 39 such as for example a plate-like sponge.
  • a filter element for example a grid 40 adapted to provide a barrier to foreign matter which may damage the pump, is provided in a portion of the elongated tray.
  • the compression means 3 comprise a known compressor 4l associated with a plate 42 by means of first vibration-damping elements and more precisely by means of elastic rubber elements 43.
  • the plate 42 is in turn associated with the bottom of the framework 2 of the conditioner by means of second damping elements substantially identical to the rubber elements 43 so as to obtain an oscillating support which, being elastically isolated both from the bottom and from the compressor, allows the total damping of the vibrations, thus not transmitting them to the framework 2.
  • the conditioner is provided with two motors, respectively indicated by 44 and 45, one of which is adapted to operate the pump 38, the other being adapted to operate the ventilation means 46.
  • the ventilation means which are defined by a fan having blades 47 rotatable about an axis parallel to the base of the framework 2 and perpendicular to the lateral walls thereof, can be operated independently from the condenser means so that if the conditioner is to be used only as a fan the noise of the sloshing of water or coolant fluid adapted to cool the condenser will not be present.
  • the fan since the fan is provided with its own motorization, its blades can be arranged, as mentioned, horizontally, so as to optimize the outflow of air from the conditioner's delivery outlets.
  • Each of the lateral walls of the framework 2 of the conditioner is furthermore provided with an element for moving the conditioner, and more precisely with a handle 45 which is advantageously slideably associated in contrast with, and by the action of, elastic means, that is to say of a spring 55, along a guiding pivot 46, inside a guiding box generally indicated at 47, internally rigidly associated with the framework 2 of the conditioner.
  • Each handle 45 has one face provided with a cam 48 which is provided with a locking recess 49 facing which is arranged an arrestor countercam 50 of a hook element 5l which is defined by a small elastic bar rigidly associated with the guiding box 47.
  • the cam 48 is provided with a first and with a second surface, having counterposed curves indicated respectively with 52 and 53, which are inclined with respect to the axis of sliding of the handle inside the guiding box 47.
  • the first and second surface 52 and 53 engage the end of the hook element 5l so as to move the latter in succession laterally with respect to its hinge point.
  • the cam 48 on the part facing towards said hook element, is pointed so as to facilitate the passage of the hook element from one side to the other while on the opposite part with respect to the hook element, being provided with the locking recess 49, it allows to engage the hook element so that the latter retains the slider inside the guiding box.
  • the hook element By compressing by a further amount the spring 55, the hook element leaves its locking recess 49 and moves onto the surface 52, allowing the handle to move out of its guiding box 47 so as to be gripped to move, in an extremely simple manner, the conditioner.
  • the mobile air-conditioning apparatus according to the invention is particularly advantageous in that it is provided with an element for the delivery of a coolant fluid which allows to affect homogeneously and uniformly all the tubes provided in the condenser of the refrigerating assembly thereof.
  • the particular configuration of the condenser determines the possibility of providing a quadrangular configuration also for the coolant fluid tank, so as to allow an increase in the capacity thereof, the external dimensions of the conditioner being invariant, and to allow said conditioner a longer autonomy of operation.
  • the materials employed, as well as the dimensions, may be any according to the requirements and the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Compressor (AREA)
EP87830268A 1986-07-18 1987-07-15 Ortsbewegliches Klimagerät Expired - Lifetime EP0254690B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87830268T ATE73222T1 (de) 1986-07-18 1987-07-15 Ortsbewegliches klimageraet.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
IT8682558A IT1216394B (it) 1986-07-18 1986-07-18 Condizionatore d'aria autonomo conmabiglie ad incasso incorporate, in particolare a scomparsa ed estrazione attivate con azioni unidirezionali.
IT8682557A IT1216393B (it) 1986-07-18 1986-07-18 Condizionatore d'aria mobile con analogo recipiente, in particolare guidato ad erogatore protetto dei fluidi condensatori addottivi con contenuto condotto flessibile.
IT8255786 1986-07-18
IT8255886 1986-07-18
IT8682562A IT1216395B (it) 1986-07-29 1986-07-29 Condizionatore d'aria mobile, in particolare con distributore a cellule interdipendenti dei fluidi erogati per la condensazione degli intermediari frigoriferi.
IT8256286 1986-07-29

Publications (3)

Publication Number Publication Date
EP0254690A2 true EP0254690A2 (de) 1988-01-27
EP0254690A3 EP0254690A3 (en) 1989-05-10
EP0254690B1 EP0254690B1 (de) 1992-03-04

Family

ID=27273841

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87830268A Expired - Lifetime EP0254690B1 (de) 1986-07-18 1987-07-15 Ortsbewegliches Klimagerät

Country Status (3)

Country Link
EP (1) EP0254690B1 (de)
DE (1) DE3777001D1 (de)
ES (1) ES2030760T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022206847A1 (de) 2022-07-05 2024-01-11 Robert Bosch Gesellschaft mit beschränkter Haftung Fluidvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE649375C (de) * 1933-07-26 1937-08-27 Niagara Blower Co Luftbehandlungsanlage
DE7125112U (de) * 1971-12-02 Gross E Aufbauklimagerät
DE3424916A1 (de) * 1984-07-06 1986-01-16 Bbc York Kaelte Klima Kaelteanlage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7125112U (de) * 1971-12-02 Gross E Aufbauklimagerät
DE649375C (de) * 1933-07-26 1937-08-27 Niagara Blower Co Luftbehandlungsanlage
DE3424916A1 (de) * 1984-07-06 1986-01-16 Bbc York Kaelte Klima Kaelteanlage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Refrigeration and Air Conditioning" 3rd Edition; Billy C. Langley, p. 29, 103; fig. 5 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022206847A1 (de) 2022-07-05 2024-01-11 Robert Bosch Gesellschaft mit beschränkter Haftung Fluidvorrichtung

Also Published As

Publication number Publication date
EP0254690B1 (de) 1992-03-04
ES2030760T3 (es) 1992-11-16
EP0254690A3 (en) 1989-05-10
DE3777001D1 (de) 1992-04-09

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