EP0623788B1 - Air cooler - Google Patents
Air cooler Download PDFInfo
- Publication number
- EP0623788B1 EP0623788B1 EP94107231A EP94107231A EP0623788B1 EP 0623788 B1 EP0623788 B1 EP 0623788B1 EP 94107231 A EP94107231 A EP 94107231A EP 94107231 A EP94107231 A EP 94107231A EP 0623788 B1 EP0623788 B1 EP 0623788B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- accordance
- air cooler
- housing
- wall
- 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
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Classifications
-
- 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
- F24F1/0007—Indoor units, e.g. fan coil units
-
- 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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
-
- 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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/14—Details or features not otherwise provided for mounted on the ceiling
Definitions
- the invention relates to an air cooler for generating a Cooling air flow according to the preamble of claim 1.
- Air coolers of this type are known and generally have in circular recesses in a housing wall Axial or radial fans or several such fans on, which by means of protective grille arrangements as a rule low air conduction are covered.
- the FR-A-1057681 describes an air cooler whose housing a vertical partition with an opening and an in has blower arranged in this opening.
- the air can optionally sucked in through two openings, one of which one in the horizontal upper housing wall and the other in the vertical rear wall of the housing is trained. While the blower is near the bottom of the case is arranged, there are both air inlet openings as well as the air outlet in the vertical front Housing wall is provided near the upper housing wall.
- In the upstream housing chamber are heat exchanger tubes provided, which run obliquely to the partition Extend level.
- an air cooler which is similar constructed like the air cooler described in FR-A-1057681 is.
- the partition ends here in front of the housing wall, however that a connection opening between those through the partition separate housing chambers are created.
- the blower is arranged in the opening. Hence flows here too both the sucked in and the expelled air inside of the housing substantially parallel to the partition and to the one that runs at an acute angle to the partition Arrangement of heat exchanger tubes.
- a disadvantage of the known air coolers is that the throw range of the cold air flow and the distribution uniformity especially for special applications leaves.
- the object of the invention is therefore an air cooler of the beginning to create the type mentioned, the generation of a Extensive cooling air flow of selectable cross-sectional shape and - related to flow velocity and exit direction - Homogeneous flow profile enables.
- a separate pressure chamber ensures that those occurring in the area of the blower or blowers inhomogeneous pressure and / or flow conditions in the Dismantle or calm the pressure chamber.
- a substantially constant in the pressure chamber Back pressure which also over the entire pressure chamber side Surface of the air grille arrangement largely constant Pressure ratios exist that relate to one homogeneous on the direction and speed distribution Guide the outlet flow behind the air baffle arrangement.
- the air cooler according to the invention thus has an advantageous directional and far-reaching cooling air flow selectable Cross-sectional shape.
- a particularly favorable, with a high variability in the Possible applications leading embodiment of the invention is characterized in that the one forming the pressure chamber Part of the housing as a separate, in different ways is designed to be equipped with air guide grids. On in this way, the required discharge characteristics can be obtained of the air cooler to the respective requirements and practical conditions adapt easily.
- air baffle elements are generally largely can have any shape are in practice rectangular air baffle elements preferred, which over extend the entire width of the front and / or rear wall can.
- the total size of the air outlet area of the air grille elements is freely selectable and especially not the air intake area of the blower can, by Providing an air outlet with a total air outlet area smaller than the air intake area of the blower one Raised the flow velocity at the air outlet will.
- an air cooler 10 consists of a longitudinal section rectangular housing 12, which has an air inlet opening 14, via the outside air, as by arrows indicated, essentially over the entire opening area distributed can get into the housing 12.
- a cooling tube arrangement 18 is provided in the housing 12 from a multiple of an end wall 22 of the housing 12 to the other end wall 24 guided cooling tube 20 and whose pipe start 26 or pipe end 28 through the end walls 22 or 24 of the housing 12 led out and there to one a coolant circuit containing a coolant source can be coupled.
- the blower 40 has one Fan blade assembly 42, the diameter of which approximately Corresponds to the diameter of the opening 32 of the intermediate wall 30.
- the front wall 47 shown in Figure 1 is in the area of Pressure chamber 46 provided with an air guiding element 50, the square, lattice-shaped individual openings 52 which have a predeterminable depth extent and therefore a well-directed, far-reaching air flow produce.
- the air grille element 50 extends essentially over the entire width of the front wall 47 and over part of the height of the pressure chamber 46.
- Air baffle element 50 'on the rear wall 48 of the housing 12 can be provided, as shown in Figure 2.
- the air grille elements arranged opposite one another 50, 50 have different shapes or sizes, and it is also possible to alternatively or additionally Air outlet grille in the top wall 44 of the housing 12 integrate.
- Recesses in the pressure chamber walls can - if only a one-sided discharge direction is required - with suitable ones Cover elements are closed.
- the pressure chamber which is above the partition 30 is located as a separate housing part and be made removable overall, so that housing parts pre-assembled with different air grille arrangements provided and used as needed can.
- the configuration of the pressure chamber housing part as a separate one Housing part also has the advantage that the blower (40) is easily accessible for any maintenance work.
- blower not shown in the Partition wall (30) of the air cooler (10) can be provided.
- the cooling tube arrangement 20 is cooled by a coolant flows through, the air sucked in by the blower 40 due to the flow through the cooling tube arrangement 18 occurring heat exchange is cooled and in the Pressure chamber 46 arrives.
- the cooled air When flowing through the opening 32 in the intermediate wall 30 the cooled air carries the electric motor 38 and thereby desirably for cooling this electric motor 38 and thereby contributing to the increase in its service life.
- the person entering via the opening 32 is found Cold air flow has a calming effect, and it forms in this Pressure space 46 a certain dynamic pressure. So that's up to the air grille elements determining the air outlet area 50, 51 an essentially homogeneous cold air form, to apply these air guiding elements evenly leads over their entire surface and results has on the outlet side a rectified, homogeneous Cooling air flow is obtained, which is strongly directed and leads to surprisingly large cooling air throws.
- suitably adapted air grille elements can cool air flows of the desired cross-section and corresponding cooling air throw are generated, wherein in particular through the selection and arrangement of the air grille elements as well as their dimensioning while maintaining the other basic structure of the air cooler a variety of in practical requirements are optimally taken into account can be.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Description
Die Erfindung betrifft einen Luftkühler zum Erzeugen eines Kühlluftstromes nach dem Oberbegriff von Anspruch 1.The invention relates to an air cooler for generating a Cooling air flow according to the preamble of claim 1.
Luftkühler dieser Art sind bekannt und weisen im Regelfall in kreisförmigen Ausnehmungen in einer Gehäusewandung ein Axial- oder Radialgebläse oder mehrere derartige Gebläse auf, welche durch Schutzgitteranordnungen mit im Regelfall geringer Luftleitwirkung abgedeckt sind.Air coolers of this type are known and generally have in circular recesses in a housing wall Axial or radial fans or several such fans on, which by means of protective grille arrangements as a rule low air conduction are covered.
Die FR-A-1057681 beschreibt einen Luftkühler, dessen Gehäuse eine vertikale Zwischenwand mit einer Öffnung und einem in dieser Öffnung angeordneten Gebläse aufweist. Die Luft kann wahlweise durch zwei Öffnungen angesaugt werden, von denen eine in der horizontal verlaufenden oberen Gehäusewand und die andere in der vertikal verlaufenden Rückwand des Gehäuses ausgebildet ist. Während das Gebläse nahe des Gehäusebodens angeordnet ist, befinden sich sowohl beide Lufteinlaßöffnungen als auch der Luftauslaß, der in der vertikalen vorderen Gehäusewand vorgesehen ist, nahe der oberen Gehäusewand. In der zustromseitigen Gehäusekammer sind Wärmetauscherröhren vorgesehen, die sich in einer schräg zur Zwischenwand verlaufenen Ebene erstrecken.The FR-A-1057681 describes an air cooler whose housing a vertical partition with an opening and an in has blower arranged in this opening. The air can optionally sucked in through two openings, one of which one in the horizontal upper housing wall and the other in the vertical rear wall of the housing is trained. While the blower is near the bottom of the case is arranged, there are both air inlet openings as well as the air outlet in the vertical front Housing wall is provided near the upper housing wall. In the upstream housing chamber are heat exchanger tubes provided, which run obliquely to the partition Extend level.
Aus der FR-A-2145735 ist ein Luftkühler bekannt, der ähnlich wie der in der FR-A-1057681 beschriebene Luftkühler aufgebaut ist. Die Trennwand endet hier jedoch vor der Gehäusewand, so daß eine Verbindungsöffnung zwischen den durch die Trennwand voneinander getrennten Gehäusekammern entsteht. In dieser Öffnung ist das Gebläse angeordnet. Folglich strömt auch hier sowohl die angesaugte als auch die ausgestoßene Luft innerhalb des Gehäuses im wesentlichen parallel zur Trennwand und zu der unter einem spitzen Winkel schräg zur Trennwand verlaufenden Anordnung von Wärmetauscherröhren.From FR-A-2145735 an air cooler is known which is similar constructed like the air cooler described in FR-A-1057681 is. The partition ends here in front of the housing wall, however that a connection opening between those through the partition separate housing chambers are created. In this The blower is arranged in the opening. Hence flows here too both the sucked in and the expelled air inside of the housing substantially parallel to the partition and to the one that runs at an acute angle to the partition Arrangement of heat exchanger tubes.
Nachteilig ist bei den bekannten Luftkühlern, daß die Wurfweite des Kaltluftstroms sowie die Verteilungsgleichmäßigkeit insbesondere für spezielle Anwendungszwecke zu wünschen übrig läßt.A disadvantage of the known air coolers is that the throw range of the cold air flow and the distribution uniformity especially for special applications leaves.
Aufgabe der Erfindung ist es daher, einen Luftkühler der eingangs genannten Art zu schaffen, der die Erzeugung eines weitreichenden Kühlluftstrom wählbarer Querschnittsform und - bezogen auf Strömungsgeschwindigkeit und Austrittsrichtung - homogenen Strömungsprofils ermöglicht.The object of the invention is therefore an air cooler of the beginning to create the type mentioned, the generation of a Extensive cooling air flow of selectable cross-sectional shape and - related to flow velocity and exit direction - Homogeneous flow profile enables.
Gelöst wird diese Aufgabe nach der Erfindung durch die im kennzeichnenden Teil von Anspruch 1 angegebenen Merkmale. This object is achieved according to the invention by the characterizing part of claim 1 specified features.
Durch die Teilung des Gehäuses und die damit erhaltene Ausbildung einer separaten Druckkammer wird erreicht, daß sich die im Bereich des Gebläses bzw. der Gebläse auftretenden inhomogenen Druck- und/oder Strömungsverhältnisse in der Druckkammer abbauen bzw. beruhigen können. Als Folge davon stellt sich in der Druckkammer ein im wesentlichen konstanter Staudruck ein, wodurch auch über der gesamten druckraumseitigen Fläche der Luftleitgitteranordnung weitgehend konstante Druckverhältnisse vorliegen, die zu einer in Bezug auf die Richtungs- und Geschwindigkeitsverteilung homogenen Austrittsströmung hinter der Luftleitgitteranordnung führen. Der erfindungsgemäße Luftkühler weist somit einen vorteilhaft gerichteten und weitreichenden Kühlluftstrom wählbarer Querschnittsform auf.Due to the division of the housing and the training received with it A separate pressure chamber ensures that those occurring in the area of the blower or blowers inhomogeneous pressure and / or flow conditions in the Dismantle or calm the pressure chamber. As a consequence of this is a substantially constant in the pressure chamber Back pressure, which also over the entire pressure chamber side Surface of the air grille arrangement largely constant Pressure ratios exist that relate to one homogeneous on the direction and speed distribution Guide the outlet flow behind the air baffle arrangement. The air cooler according to the invention thus has an advantageous directional and far-reaching cooling air flow selectable Cross-sectional shape.
Eine besondere günstige, zu einer hohen Variabilität in den Einsatzmöglichkeiten führende Ausführungsform der Erfindung zeichnet sich dadurch aus, daß der die Druckkammer bildende Teil des Gehäuses als separater, in unterschiedlicher Weise mit Luftleitgittern bestückbarer Teil ausgebildet ist. Auf diese Weise lassen sich die jeweils geforderten Ausströmcharakteristiken des Luftkühlers den jeweiligen Forderungen und praktischen Gegebenheiten problemfrei anpassen.A particularly favorable, with a high variability in the Possible applications leading embodiment of the invention is characterized in that the one forming the pressure chamber Part of the housing as a separate, in different ways is designed to be equipped with air guide grids. On in this way, the required discharge characteristics can be obtained of the air cooler to the respective requirements and practical conditions adapt easily.
Obgleich die Luftleitgitterelemente im allgemeinen eine weitgehend beliebige Form aufweisen können, sind in der Praxis rechteckige Luftleitgitterelemente bevorzugt, die sich über die gesamte Breite der Vorder- und/oder Rückwand erstrecken können.Although the air baffle elements are generally largely can have any shape are in practice rectangular air baffle elements preferred, which over extend the entire width of the front and / or rear wall can.
Da die Gesamtgröße der Luftaustrittsfläche der Luftleitgitterelemente frei wählbar ist und insbesondere nicht der Luftansaugfläche des Gebläses entsprechen muß, kann durch das Vorsehen eines Luftauslasses mit einer Gesamt-Luftaustrittsfläche kleiner als der Luftansaugfläche des Gebläses eine Steigerung der Strömungsgeschwindigkeit am Luftauslaß erreicht werden. Because the total size of the air outlet area of the air grille elements is freely selectable and especially not the air intake area of the blower can, by Providing an air outlet with a total air outlet area smaller than the air intake area of the blower one Raised the flow velocity at the air outlet will.
Die Erfindung wird im folgenden beispielsweise anhand der Zeichnung beschrieben; in dieser zeigt:
- Fig. 1
- eine schematische Ansicht eines Luftkühlers nach der Erfindung, und
- Fig. 2
- eine schematische, teilweise aufgebrochene Darstellung des Luftkühlers aus Figur 1, gesehen in Richtung des Pfeiles X.
- Fig. 1
- is a schematic view of an air cooler according to the invention, and
- Fig. 2
- is a schematic, partially broken illustration of the air cooler from Figure 1, seen in the direction of arrow X.
Nach Figur 1 besteht ein Luftkühler 10 aus einem im Längsschnitt
rechteckigen Gehäuse 12, das eine Lufteintrittsöffnungen
14 aufweist, über die Außenluft, wie durch Pfeile
angedeutet, im wesentlichen über die gesamte Öffnungsfläche
verteilt in das Gehäuse 12 gelangen kann.According to Figure 1, an
Im Gehäuse 12 ist eine Kühlrohranordnung 18 vorgesehen, die
aus einem mehrfach von einer Stirnwand 22 des Gehäuses 12
zur anderen Stirnwand 24 geführten Kühlrohr 20 besteht und
dessen Rohranfang 26 bzw. Rohrende 28 durch die Stirnwände
22 bzw. 24 des Gehäuses 12 herausgeführt und dort an einen
eine Kühlmittelquelle enthaltenden Kühlmittelkreislauf
koppelbar sind.A
Erfindungsgemäß erstreckt sich oberhalb der Kühlrohranordnung
18 im wesentlichen parallel zur Lufteintrittsöffnung 14
eine Zwischenwand 30 durch das Gehäuse 12, die in ihrer
Mitte eine kreisscheibenförmige Öffnung 32 besitzt, in der
über Streben 34 das Gehäuse 36 eines Elektromotors 38 eines
Gebläses 40 gehaltert ist. Das Gebläse 40 besitzt eine
Lüfterflügelanordnung 42, deren Durchmesser in etwa dem
Durchmesser der Öffnung 32 der Zwischenwand 30 entspricht.According to the invention extends above the
Oberhalb der Zwischenwand 30, umschlossen von den Stirnwänden
22, 24, den Vorder- und Rückwänden 47, 48 und der
Deckenwand 44, befindet sich eine Druckkammer 46.Above the
Die in Figur 1 dargestellte Vorderwand 47 ist im Bereich des
Druckraumes 46 mit einem Luftleitgitterelement 50 versehen,
das quadratische, in Gitterform angeordnete Einzelöffnungen
52 aufweist, die eine vorgebbare Tiefenerstreckung aufweisen
und dadurch eine ausgeprägt gerichtete, weitreichende Luftströmung
erzeugen. Das Luftleitgitterelement 50 erstreckt
sich im wesentlichen über die gesamte Breite der Vorderwand
47 und über einen Teil der Höhe des Druckraumes 46.The
Je nach Einsatzzweck des Luftkühlers 10 kann ein entsprechendes
Luftleitgitterelement 50' an der Rückwand 48 des Gehäuses
12 vorgesehen sein, wie dies in Figur 2 dargestellt ist.Depending on the intended use of the
Ferner können die gegenüberliegend angeordneten Luftleitgitterelemente
50, 50' unterschiedliche Form bzw. Größe aufweisen,
und es ist auch möglich, alternativ oder zusätzlich ein
Luftauslaßgitter in die Deckenwand 44 des Gehäuses 12 zu
integrieren.Furthermore, the air grille elements arranged opposite one another
50, 50 'have different shapes or sizes,
and it is also possible to alternatively or additionally
Air outlet grille in the
Die zur Aufnahme der Luftleitgitteranordnungen bestimmten Ausnehmungen in den Druckkammerwandungen können - falls nur eine einseitige Ausblasrichtung gefordert wird - mit geeigneten Abdeckelementen verschlossen werden.The intended for receiving the air grille arrangements Recesses in the pressure chamber walls can - if only a one-sided discharge direction is required - with suitable ones Cover elements are closed.
Zweckmäßigerweise kann die Druckkammer, die oberhalb der Zwischenwand
30 gelegen ist, als separates Gehäuseteil ausgebildet
und insgesamt abnehmbar gestaltet werden, so daß Gehäuseteile
mit unterschiedlichen Luftleitgitteranordnungen vormontiert
vorgesehen und je nach Bedarfsfall verwendet werden
können.Conveniently, the pressure chamber, which is above the
Die Ausgestaltung des Druckkammergehäuseteils als separates Gehäuseteil hat auch noch den Vorteil, daß das Gebläse (40) für eventuelle Wartungsarbeiten einfach zugänglich ist.The configuration of the pressure chamber housing part as a separate one Housing part also has the advantage that the blower (40) is easily accessible for any maintenance work.
Je nach Bedarf und gewünschter Leistung können auch weitere, in den Figuren 1 und 2 nicht dargestellte Gebläse in der Zwischenwand (30) des Luftkühlers (10) vorgesehen sein.Depending on the needs and desired performance, other, in the figures 1 and 2 blower not shown in the Partition wall (30) of the air cooler (10) can be provided.
Im Betrieb wird die Kühlrohranordnung 20 von einem Kühlmittel
durchströmt, wobei die vom Gebläse 40 angesaugte Luft
aufgrund des beim Durchströmen der Kühlrohranordnung 18
auftretenden Wärmeaustausches gekühlt wird und in die
Druckkammer 46 gelangt.In operation, the
Beim Durchströmen der Öffnung 32 in der Zwischenwand 30 umströmt
die gekühlte Luft den Elektromotor 38 und trägt dabei
in erwünschter Weise zur Kühlung dieses Elektromotors 38 und
damit zu dessen Lebensdauererhöhung bei.When flowing through the opening 32 in the
Im Druckraum 46 erfährt der über die Öffnung 32 eintretende
Kaltluftstrom eine Beruhigung, und es bildet sich in diesem
Druckraum 46 ein gewisser Staudruck aus. Damit liegt an den
den Luftauslaßbereich bestimmenden Luftleitgitterelementen
50, 51 ein im wesentlichen homogener Kaltluft-Vordruck an,
der zu einer gleichmäßigen Beaufschlagung dieser Luftleitgitterelnmente
über deren gesamte Fläche führt und zur Folge
hat, daß austrittsseitig ein gleichgerichteter, homogener
Kühlluftstrom erhalten wird, der ausgeprägt gerichtet ist
und zu überraschend großen Kühlluft-Wurfweiten führt.In the
Durch Verwendung geeignet angepaßter Luftleitgitterelemente können Kühlluftströme von jeweils gewünschtem Querschnitt und entsprechender Kühlluft-Wurfweite erzeugt werden, wobei insbesondere durch Auswahl und Anordnung der Luftleitgitterelemente sowie deren Dimensionierung unter Beibehaltung des sonstigen Grundaufbaus des Luftkühlers einer Vielzahl von in der Praxis auftretenden Forderungen optimal Rechnung getragen werden kann. By using suitably adapted air grille elements can cool air flows of the desired cross-section and corresponding cooling air throw are generated, wherein in particular through the selection and arrangement of the air grille elements as well as their dimensioning while maintaining the other basic structure of the air cooler a variety of in practical requirements are optimally taken into account can be.
- 1010th
- LuftkühlerAir cooler
- 1212th
- Gehäusecasing
- 1414
- LufteintrittsöffnungAir inlet opening
- 1818th
- KühlrohranordnungCooling pipe arrangement
- 2020th
- KühlrohrCooling pipe
- 2222
- StirnwandFront wall
- 2424th
- StirnwandFront wall
- 2626
- RohranfangPipe start
- 2828
- RohrendePipe end
- 3030th
- ZwischenwandPartition
- 3232
- Öffnungopening
- 3434
- Strebestrut
- 3636
- Gehäuse des ElektromotorsHousing of the electric motor
- 3838
- ElektromotorElectric motor
- 4040
- Gebläsefan
- 4242
- LüfterflügelFan blades
- 4444
- DeckenwandCeiling wall
- 4646
- DruckkammerPressure chamber
- 4747
- VorderwandFront wall
- 4848
- RückwandBack wall
- 5050
- LuftleitgitterelementAir baffle element
- 50'50 '
- LuftleitgitterelementAir baffle element
- 5252
- EinzelöffnungSingle opening
Claims (15)
- Air cooler for producing a cooling air flow, comprising a housing (12) having an air inlet and an air outlet and in which a cooling pipe arrangement (18) conducting a cooling medium is provided, at least one fan (40) driven by an electric motor (38) and arranged in the flow direction of the air behind the cooling pipe arrangement (18), and also an air guiding grid arrangement (50, 50') provided at the air outlet, wherein the fan (40) is arranged in an opening (32) of an intermediate wall (30), which subdivides the housing (12) into an inflow-side heat exchanger chamber, containing the cooling pipe arrangement (18) and an outflow-side pressure chamber (46)
characterised in that
the air inlet includes a plurality of air inlet openings (14) formed in a base side air inlet wall of the housing (12), in that the intermediate wall (30) extends substantially parallel to the air inlet wall and has a substantially constant spacing to the cooling pipe arrangement (18) over its entire area, and in that the air guiding grid arrangement (50, 50') has a web mesh structure with a plurality of individual openings (52). - Air cooler in accordance with claim 1,
characterised in that
the air inlet openings (14) are arranged distributed substantially over the entire air inlet wall. - Air cooler in accordance with claim 1 or claim 2,
characterised in that
the air inlet openings (14) form the important part of the area of the air inlet wall. - Air cooler in accordance with one of the preceding claims,
characterised in that
the height of the webs bounding these individual openings (52) amounts to approximately 5 to 15 mm. - Air cooler in accordance with one of the preceding claims,
characterised in that
the intermediate wall (10) is arranged in the upper third of the flat parallelepiped-shaped housing (12). - Air cooler in accordance with one of the preceding claims,
characterised in that
the fan or the fans (40) is or are centrally arranged in the intermediate wall (30). - Air cooler in accordance with one of the preceding claims,
characterised in that
the housing part lying above the partition wall (30) and forming the pressure chamber (46) is formed as a separate housing part and is interchangeably arranged, and can also in particular be equipped with different air guiding grid arrangements (50, 50'). - Air cooler in accordance with one of the preceding claims,
characterised in that
the air guiding grid arrangement comprises a single air guiding grid element (50) provided in the front wall (47) of the housing (12). - Air cooler in accordance with one of the preceding claims,
characterised in that
the air guiding grid element (50, 50') has a rectangular peripheral shape. - Air cooler in accordance with one of the preceding claims,
characterised in that
an air guiding grid element (50, 50') extends substantially over the entire width of the front and/or rear wall (47, 48) of the housing (12). - Air cooler in accordance with one of the preceding claims,
characterised in that
the air guiding grid element (50, 50') only extends over an upper part region of the height of the pressure chamber (46). - Air cooler in accordance with one of the preceding claims
characterised in that
the total air outlet area of the air guiding grid elements (50, 50') correspond substantially to the air induction area of the fan (40). - Air cooler in accordance with one of the preceding claims 1 to 11,
characterised in that
the total air outlet area of the air guiding grid elements (50, 50') is smaller than the air induction area of the fan (40) and, in particular, corresponds to half the air induction area of the fan or of the fans (40). - Air cooler in accordance with one of the preceding claims,
characterised in that
the individual openings (52) are of rectangular shape. - Air cooler in accordance with claim 14,
characterised in that
the individual openings are of square shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9306969U | 1993-05-07 | ||
| DE9306969U DE9306969U1 (en) | 1993-05-07 | 1993-05-07 | Air cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0623788A1 EP0623788A1 (en) | 1994-11-09 |
| EP0623788B1 true EP0623788B1 (en) | 1998-09-16 |
Family
ID=6893009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94107231A Expired - Lifetime EP0623788B1 (en) | 1993-05-07 | 1994-05-09 | Air cooler |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0623788B1 (en) |
| DE (2) | DE9306969U1 (en) |
| ES (1) | ES2122081T3 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6963758B2 (en) | 2000-09-29 | 2005-11-08 | Ntt Docomo, Inc. | High-sensitivity wireless receiving device and high-frequency unit used therefor |
| CN106440026B (en) * | 2016-08-01 | 2022-05-13 | 奥克斯空调股份有限公司 | Wall-mounted air conditioner |
| CN106287947B (en) * | 2016-08-01 | 2022-03-01 | 奥克斯空调股份有限公司 | Wall-mounted air conditioner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1057681A (en) * | 1952-06-04 | 1954-03-10 | Carrier Soc | Air conditioner for apartments |
| DE2135063A1 (en) * | 1971-07-14 | 1973-01-25 | Kurt Dr Ing Zenkner | DEVICE FOR AIR CONDITIONING ROOMS |
-
1993
- 1993-05-07 DE DE9306969U patent/DE9306969U1/en not_active Expired - Lifetime
-
1994
- 1994-05-09 EP EP94107231A patent/EP0623788B1/en not_active Expired - Lifetime
- 1994-05-09 DE DE59406907T patent/DE59406907D1/en not_active Expired - Lifetime
- 1994-05-09 ES ES94107231T patent/ES2122081T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0623788A1 (en) | 1994-11-09 |
| DE59406907D1 (en) | 1998-10-22 |
| ES2122081T3 (en) | 1998-12-16 |
| DE9306969U1 (en) | 1993-07-15 |
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