EP1403589B1 - Air-conditioning device - Google Patents

Air-conditioning device Download PDF

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Publication number
EP1403589B1
EP1403589B1 EP03021479A EP03021479A EP1403589B1 EP 1403589 B1 EP1403589 B1 EP 1403589B1 EP 03021479 A EP03021479 A EP 03021479A EP 03021479 A EP03021479 A EP 03021479A EP 1403589 B1 EP1403589 B1 EP 1403589B1
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EP
European Patent Office
Prior art keywords
base
air conditioning
conditioning apparatus
heating element
module
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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EP03021479A
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German (de)
French (fr)
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EP1403589A1 (en
Inventor
Alberto Ruiz De Larramendi
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BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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Publication of EP1403589A1 publication Critical patent/EP1403589A1/en
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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
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
    • 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
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/36—Drip trays for outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays

Definitions

  • the present invention relates to an air conditioner with an interior module provided in the room to be air-conditioned with a first heat exchanger and an external module connected via connecting lines, such as electrical lines, a refrigerant line or the like, to the exterior module, which is provided outside the room to be conditioned in the outside atmosphere is.
  • the outdoor module has a blower with fan blades for generating an air flow directed towards a second heat exchanger and a bottom for collecting dripping condensed water provided below the fan, in which an outlet opening is provided, through which the collected condensate can flow off the ground.
  • the air conditioner has an indoor module to be air-conditioned and an outdoor module provided to the outside atmosphere.
  • condenser In the outdoor module is provided condenser, which is cooled with water of condensation to increase the power.
  • the condensation water dripping from the condenser collects in a collecting container, which can be emptied via a closable outlet opening.
  • the object of the present invention is to provide an air conditioner that operates reliably regardless of the climatic conditions in the outside atmosphere.
  • a heating element is provided at the bottom of the outer module, which prevents ice formation of the condensed water collected on the floor by heating the bottom to a temperature above the water-freezing temperature. This eliminates the risk that ice may form below the fan blades at corresponding low outside temperatures. Contact between fan blades and ice formed on the ground - thereby affecting the operation of the air conditioner - is thus prevented.
  • the heating element can be designed as electrical resistance heating. So that the functionality of the resistance heating is not impaired, the resistance heating can be arranged on a lower side of the outer module base.
  • the heating element is associated with a sensor which turns on the risk of ice formation on the bottom of the heating element.
  • the heating element is therefore switched on in an energy-saving manner only in case of risk of ice formation.
  • the senor may be formed as an outside temperature sensor, which turns on the heating element at an outside temperature in the range of water-freezing temperature.
  • the bottom of the outdoor module in the outer atmosphere is formed with a release agent which divides the floor into two floor sections.
  • a first bottom section directs the outflowing condensed water to an outlet opening of the outdoor module.
  • the second floor section is located below the fan blades.
  • the release agent prevents accumulation of condensation in the second bottom section below the fan blades.
  • the second floor section is also associated with the heating element. Should therefore nevertheless collect water in the second floor section, ice formation in the second floor section is prevented by the heating element.
  • the separating means is formed as a partition, which separates the first bottom portion from the second bottom portion. This reliably prevents the outflowing condensation from collecting below the fan blades.
  • the separating means may be formed as a survey, which protrudes from the first bottom portion. A top of the bump forms the second bottom section below the fan blades.
  • the second floor section is also connected to the outlet opening. If necessary, dripping condensate water on the second bottom section can thus be discharged via the outlet opening.
  • the flow of condensed water out of the first or the second floor section by means of gravity can be improved by the floor sections falling off at an angle, in particular 2 ° to the outlet opening.
  • the overall height of the fan in the outer module can be substantially reduced.
  • An outer peripheral line of the fan blades of the blower can approach the bottom to within 2 to 3 mm.
  • the outdoor module can be made compact with low height.
  • the air conditioner according to the invention can work both in a room cooling device and in a space heating operation.
  • the second heat exchanger provided in the outdoor module works as a condenser.
  • the outlet opening in the outer module is closed by means of a closure element. Condensation is conducted via a connecting line from the indoor module to the outdoor module.
  • the condensed water is distributed to the second heat exchanger in order to increase its condensing capacity. The dripping condensation water is collected on the floor. Due to the low height of the blower, the condensed water collected at the bottom is taken up by means of the fan blades and thrown again onto the second heat exchanger.
  • an air conditioner with an indoor module 3 and an outdoor module 9 is shown.
  • the interior module 3 of the air conditioner is located in a room to be air-conditioned 1.
  • the outdoor module 9 is provided in the outside atmosphere 11.
  • the two modules 3 and 9 are connected to each other via a wiring harness 7.
  • the wiring harness 7 runs for example via an open window to the outdoor module 9.
  • the outdoor module 9 can be arranged on an outer wall in the region of the window.
  • electrical lines, a refrigerant line or a condensed water line 8 shown in Figure 2 are bundled.
  • the inner module has a first heat exchanger 5 and the outer module 9 a second heat exchanger 17.
  • the second heat exchanger 17 is shown in detail in FIG.
  • the second heat exchanger 17 is U-shaped. Between the two legs of the U-shaped heat exchanger 17, a fan 13 is arranged with fan blades 15. The fan 13 is mounted on a bracket 18. A lower end of the holder 18 is inserted in the bottom 19. An upper end of the bracket 18 is mounted on the outer module housing, not shown.
  • the heat exchanger 17 is seated with a U-shaped end face on the bottom 19 of the outer module 9.
  • the discharge channel 31 is via an outlet opening 32 is in communication with the outside atmosphere 11.
  • a closure element 33 closes the outlet opening 32 closed. From Figure 2 also shows that at the bottom 19, a partition wall 29 is formed.
  • the partition wall 29 divides the bottom 19 into a first bottom section 23 and a second bottom section 25.
  • the second bottom section 25 is bounded on the one hand by the partition wall 29 and by the outflow channel 31 according to FIG. From the figure 4 shows that an outer circumferential line 27 of the fan blades 15 is approximated to the second bottom portion 25 to a slight distance a of about 3 mm.
  • a heating element 35 is designed as a resistance heater.
  • the resistance heater 35 is connected to a control device 36.
  • the control device 36 has an outside temperature sensor 38, which is provided on a front side of the module base 19.
  • the second heat exchanger 17 operates in the outdoor module 9 as a condenser.
  • the first heat exchanger 5 in the indoor module 3 operates as an evaporator, condensed on the condensate from the room air.
  • the condensed water collects in the inner module 3.
  • the condensed water is guided in the condensate line 8 shown in Figure 2 in the outer module 9.
  • the condensate line 8 opens in the area above the fan blades 15 in the outer module 9. The condensate water drips therefore in the room cooling operation on the fan blades 15, which eject it in the direction of the U-shaped heat exchanger 17.
  • the condensed water is distributed via the heat exchanger 17.
  • a condensing capacity of the second heat exchanger 17 is thus increased.
  • the outlet opening 32 is closed by the closure element 33 in the room cooling operation of the air conditioner. Therefore dripping water collects on the floor 19.
  • the water level of the condensed water collected at the bottom 19 may thereby increase during the room cooling operation.
  • the water collected at the bottom 19 is received by the fan blades 15 and again thrown against the second heat exchanger 17.
  • the condensate dripping from the condensate water line 17 is consequently detected, on the one hand, directly by the fan blades 15 and distributed via the heat exchanger 17.
  • the fan blades 15 can also absorb condensation directly from the bottom 19 and distribute it over the heat exchanger 17.
  • the first heat exchanger 5 operates in the indoor module 3 as a condenser to heat the room 1.
  • the second heat exchanger 17 in the outdoor module 9 operates as an evaporator. In this case From the second heat exchanger 17, the condensed water drips off in the direction of the arrow to the second bottom section 23. The second bottom portion 23 directs the collected condensed water 21 to the discharge channel 31. This is not closed by the closure element 33 in the space heating operation. The condensed water 21 therefore flows out of the outdoor module 9 via the outflow channel 31. If the outside temperature sensor 38 of the control device 36 detects an outside temperature in the region of the water freezing point, then the control device 36 switches on the heating element 35. The bottom 19 is thereby heated to a temperature above the water freezing temperature. Consequently, the risk is eliminated that can form ice below the fan blades at corresponding low outside temperatures. Contact between fan blades and ice formed on the ground is thus prevented.
  • the first bottom portion 25 is inaccessible below the fan blades 15 for the effluent in the second bottom portion 23 of water.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

The air-conditioning device has an internal module with a first heat exchanger located within the air-conditioned room and coupled via electrical and refrigeration medium lines with an external module on the outside of the air-conditioned room, provided with a fan for directing an air flow across a second heat exchanger. The external module has a base (19) below the fan blades (15) for collection of condensate water, provided with a drainage opening and a heating element (35) operated by an associated control (36) coupled to an external temperature sensor (38), for heating the base to prevent freezing of the condensate water.

Description

Die vorliegende Erfindung betrifft ein Klimagerät mit einem im zu klimatisierenden Raum vorgesehenen Innenmodul mit einem ersten Wärmetauscher und einem über Verbindungsleitungen, wie etwa elektrische Leitungen, eine Kältemittelleitung oder dergleichen, funktional mit dem Innenmodul verbundenen Außenmodul, das außerhalb des zu klimatisierenden Raumes in der Außenatmosphäre vorgesehen ist. Das Außenmodul weist ein Gebläse mit Gebläseschaufeln zum Erzeugen einer auf einen zweiten Wärmetauscher gerichteten Luftströmung und einen unterhalb des Gebläses vorgesehenen Boden zum Sammeln von abtropfendem Kondenswasser auf, in welchem eine Auslassöffnung vorgesehen ist, durch die das gesammelte Kondenswasser vom Boden abfließen kann.The present invention relates to an air conditioner with an interior module provided in the room to be air-conditioned with a first heat exchanger and an external module connected via connecting lines, such as electrical lines, a refrigerant line or the like, to the exterior module, which is provided outside the room to be conditioned in the outside atmosphere is. The outdoor module has a blower with fan blades for generating an air flow directed towards a second heat exchanger and a bottom for collecting dripping condensed water provided below the fan, in which an outlet opening is provided, through which the collected condensate can flow off the ground.

Aus der EP 1160517 ist ein gattungsgemäßes Klimagerät bekannt. Das Klimagerät weist ein in einem zu klimatisierenden Raum Innenmodul sowie ein an der Außenatmosphäre vorgesehenes Außenmodul auf. Im Außenmodul ist Kondensator vorgesehen, der mit Kondensationswasser gekühlt wird, um die Leistung zu erhöhen. Das vom Kondensator tropfende Kondensationswasser sammelt sich in einem Sammelbehälter, der über eine verschließbare Ausgangsöffnung entleert werden kann.From EP 1160517 a generic air conditioner is known. The air conditioner has an indoor module to be air-conditioned and an outdoor module provided to the outside atmosphere. In the outdoor module is provided condenser, which is cooled with water of condensation to increase the power. The condensation water dripping from the condenser collects in a collecting container, which can be emptied via a closable outlet opening.

In Patent Abstract of Japan, Band 1995, Nr. 01, 28.02.1995 (1995/02/28), und JP 06 281 201 A (Sharp Corp.) 07.10.1994 (1994/10/07) wird eine Klimaanlage beschrieben, die auf dem unteren Boden des Außenmoduls eine Heizvorrichtung aufweist.In Patent Abstract of Japan, vol. 1995, no. 01, 28.02.1995 (1995/02/28), and JP 06 281 201 A (Sharp Corp.) 07.10.1994 (1994/10/07) an air conditioner is described, which has a heating device on the lower bottom of the outer module.

Die Aufgabe der vorliegenden Erfindung besteht darin, ein Klimagerät bereitzustellen, das unabhängig von den klimatischen Verhältnissen in der Außenatmosphäre zuverlässig arbeitet.The object of the present invention is to provide an air conditioner that operates reliably regardless of the climatic conditions in the outside atmosphere.

Die Aufgabe der vorliegenden Erfindung ist durch das Klimagerät mit den Merkmalen des Patentanspruches 1 gelöst. Gemäß dem kennzeichnenden Teil des Patentanspruches 1 ist am Boden des Außenmoduls ein Heizelement vorgesehen, das eine Eisbildung des auf dem Boden gesammelten Kondenswassers durch ein Erwärmen des Bodens auf eine über der Wasser-Gefriertemperatur liegende Temperatur verhindert. Dadurch ist die Gefahr beseitigt, dass bei entsprechenden niedrigen Außentemperaturen sich Eis unterhalb der Gebläseschaufeln bilden kann. Ein Kontakt zwischen Gebläseschaufeln und auf dem Boden gebildetem Eis - wodurch der Betrieb des Klimageräts beeinträchtigt wird - ist somit verhindert.The object of the present invention is achieved by the air conditioner with the features of claim 1. According to the characterizing part of claim 1, a heating element is provided at the bottom of the outer module, which prevents ice formation of the condensed water collected on the floor by heating the bottom to a temperature above the water-freezing temperature. This eliminates the risk that ice may form below the fan blades at corresponding low outside temperatures. Contact between fan blades and ice formed on the ground - thereby affecting the operation of the air conditioner - is thus prevented.

In einer besonders fertigungstechnisch einfachen und günstigen Weise kann das Heizelement als elektrische Widerstandsheizung ausgebildet sein. Damit die Funktionsfähigkeit der Widerstandsheizung nicht beeinträchtigt wird, kann die Widerstandsheizung auf einer Unterseite des Außenmodul-Bodens angeordnet sein.In a particularly simple production technology and favorable manner, the heating element can be designed as electrical resistance heating. So that the functionality of the resistance heating is not impaired, the resistance heating can be arranged on a lower side of the outer module base.

Von Vorteil ist es, wenn dem Heizelement ein Sensor zugeordnet ist, der bei Gefahr einer Eisbildung am Boden das Heizelement einschaltet. Das Heizelement ist daher in energiesparender Weise nur bei Gefahr von Eisbildung eingeschaltet.It is advantageous if the heating element is associated with a sensor which turns on the risk of ice formation on the bottom of the heating element. The heating element is therefore switched on in an energy-saving manner only in case of risk of ice formation.

In fertigungstechnisch einfacher Weise kann der Sensor als Außentemperatursensor ausgebildet sein, der bei einer Außentemperatur im Bereich der Wasser-Gefriertemperatur das Heizelement einschaltet.In manufacturing technology simple manner, the sensor may be formed as an outside temperature sensor, which turns on the heating element at an outside temperature in the range of water-freezing temperature.

Der Boden des in der Außenatmosphäre befindlichen Außenmoduls ist mit einem Trennmittel ausgebildet ist, das den Boden in zwei Bodenabschnitte unterteilt. Ein erster Bodenabschnitt leitet das abfließende Kondenswasser zu einer Auslassöffnung des Außenmoduls. Der zweite Bodenabschnitt befindet sich unterhalb der Gebläseschaufeln. Das Trennmittel verhindert eine Ansammlung von Kondenswasser im zweiten Bodenabschnitt unterhalb der Gebläseschaufeln. Dem zweiten Bodenabschnitt ist zudem das Heizelement zugeordnet. Sollte sich daher trotzdem im zweiten Bodenabschnitt Wasser sammeln, wird eine Eisbildung im zweiten Bodenabschnitt durch das Heizelement verhindert.The bottom of the outdoor module in the outer atmosphere is formed with a release agent which divides the floor into two floor sections. A first bottom section directs the outflowing condensed water to an outlet opening of the outdoor module. The second floor section is located below the fan blades. The release agent prevents accumulation of condensation in the second bottom section below the fan blades. The second floor section is also associated with the heating element. Should therefore nevertheless collect water in the second floor section, ice formation in the second floor section is prevented by the heating element.

Gemäß einem vorteilhaften Ausführungsbeispiel ist das Trennmittel als eine Trennwand ausgebildet, die den ersten Bodenabschnitt vom zweiten Bodenabschnitt trennt. Dadurch wird zuverlässig verhindert, dass sich das abfließende Kondenswasser unterhalb der Gebläseschaufeln sammelt.According to an advantageous embodiment, the separating means is formed as a partition, which separates the first bottom portion from the second bottom portion. This reliably prevents the outflowing condensation from collecting below the fan blades.

Gemäß einer weiteren Ausgestaltung kann das Trennmittel als eine Erhebung ausgebildet sein, die aus dem ersten Bodenabschnitt ragt. Eine Oberseite der Erhebung bildet den zweiten Bodenabschnitt unterhalb der Gebläseschaufeln.According to a further embodiment, the separating means may be formed as a survey, which protrudes from the first bottom portion. A top of the bump forms the second bottom section below the fan blades.

Vorteilhaft ist es, wenn zusätzlich auch der zweite Bodenabschnitt mit der Auslassöffnung in Verbindung ist. Gegebenenfalls auf den zweiten Bodenabschnitt tropfendes Kondenswasser kann somit über die Auslassöffnung abgeführt werden.It is advantageous if, in addition, the second floor section is also connected to the outlet opening. If necessary, dripping condensate water on the second bottom section can thus be discharged via the outlet opening.

Das Abfließen des Kondenswassers aus dem ersten bzw. aus dem zweiten Bodenabschnitt mittels Schwerkraft kann verbessert werden, indem die Bodenabschnitte in einem Winkel, insbesondere 2° zur Auslassöffnung hin abfallen.The flow of condensed water out of the first or the second floor section by means of gravity can be improved by the floor sections falling off at an angle, in particular 2 ° to the outlet opening.

Da sich erfindungsgemäß kein Eis unterhalb der Gebläseschaufeln bildet, kann die Bauhöhe des Gebläses im Außenmodul wesentlich reduziert werden. Eine Außenumfangslinie der Gebläseschaufeln des Gebläses kann sich bis auf 2 bis 3 mm dem Boden annähern. Dadurch kann das Außenmodul kompakt mit geringer Bauhöhe gefertigt werden.Since according to the invention no ice forms below the fan blades, the overall height of the fan in the outer module can be substantially reduced. An outer peripheral line of the fan blades of the blower can approach the bottom to within 2 to 3 mm. As a result, the outdoor module can be made compact with low height.

Besonders vorteilhaft ist es, wenn das erfindungsgemäße Klimagerät sowohl in einem Raumkühlungsgerät als auch in einem Raumheizungsbetrieb arbeiten kann. Im Raumkühlungsbetrieb arbeitet der im Außenmodul vorgesehene zweite Wärmetauscher als ein Kondensator. In diesem Fall ist die Auslassöffnung im Außenmodul mittels eines Verschlusselements geschlossen. Kondenswasser wird über eine Verbindungsleitung vom Innenmodul in das Außenmodul geführt. Im Außenmodul wird das Kondenswasser auf den zweiten Wärmetauscher verteilt, um dessen Kondensierleistung zu erhöhen. Das abtropfende Kondenswasser wird auf dem Boden gesammelt. Aufgrund der geringen Bauhöhe des Gebläses wird das am Boden gesammelte Kondenswasser mittels der Gebläseschaufeln aufgenommen und erneut auf den zweiten Wärmetauscher geschleudert. Dagegen arbeitet im Raumheizungsbetrieb der zweite Wärmetauscher im Außenmodul als ein Verdampfer, an dem Wasser kondensiert. In diesem Fall ist die Auslassöffnung im Außenmodul geöffnet. Dadurch kann Kondenswasser vom zweiten Wärmetauscher auf den ersten Bodenabschnitt tropfen und durch die Auslassöffnung abfließen. Eine bei niedrigen Außentemperaturen bestehende Gefahr einer Eisbildung im Außenmodul ist somit verhindert.It is particularly advantageous if the air conditioner according to the invention can work both in a room cooling device and in a space heating operation. In the room cooling mode, the second heat exchanger provided in the outdoor module works as a condenser. In this case, the outlet opening in the outer module is closed by means of a closure element. Condensation is conducted via a connecting line from the indoor module to the outdoor module. In the outdoor module, the condensed water is distributed to the second heat exchanger in order to increase its condensing capacity. The dripping condensation water is collected on the floor. Due to the low height of the blower, the condensed water collected at the bottom is taken up by means of the fan blades and thrown again onto the second heat exchanger. In contrast, works in space heating operation of the second heat exchanger in the outdoor module as an evaporator, condenses on the water. In this case, the outlet opening in the outdoor module is open. As a result, condensation water from the second heat exchanger to drip on the first bottom portion and drain through the outlet opening. An existing at low outdoor temperatures risk of ice formation in the outdoor module is thus prevented.

Nachfolgend ist ein Ausführungsbeispiel der Erfindung anhand der beigefügten Figuren beschrieben. Es zeigen:

Fig. 1
ein Innenmodul und ein Außenmodul des Klimageräts;
Fig. 2
in einer perspektivischen Ansicht das Außenmodul ohne Gehäuse;
Fig. 3
eine Ansicht in Pfeilrichtung A aus der Figur 2 auf den Boden des Außenmoduls ohne den zweiten Wärmetauscher; und
Fig. 4
eine Schnittansicht in Pfeilrichtung B aus der Figur 2 ohne den zweiten Wärmetauscher.
Hereinafter, an embodiment of the invention with reference to the accompanying figures will be described. Show it:
Fig. 1
an indoor module and an outdoor module of the air conditioner;
Fig. 2
in a perspective view of the outdoor module without housing;
Fig. 3
a view in the direction of arrow A of Figure 2 on the bottom of the outer module without the second heat exchanger; and
Fig. 4
a sectional view in the direction of arrow B of Figure 2 without the second heat exchanger.

In der Figur 1 ist gemäß dem ersten Ausführungsbeispiel ein Klimagerät mit einem Innenmodul 3 und einem Außenmodul 9 dargestellt. Das Innenmodul 3 des Klimageräts befindet sich dabei in einem zu klimatisierenden Raum 1. Das Außenmodul 9 ist in der Außenatmosphäre 11 vorgesehen. Die beiden Module 3 und 9 sind über einen Leitungsstrang 7 miteinander verbunden. Der Leitungsstrang 7 verläuft beispielsweise über ein geöffnetes Fenster zum Außenmodul 9. Das Außenmodul 9 kann dabei an einer Außenwand im Bereich des Fenster angeordnet sein. Im Leitungsstrang 7 sind beispielsweise elektrische Leitungen, eine Kältemittelleitung oder eine in der Figur 2 gezeigte Kondenswasserleitung 8 gebündelt. In bekannter Weise weist das Innenmodul einen ersten Wärmetauscher 5 sowie das Außenmodul 9 einen zweiten Wärmetauscher 17 auf. Der zweite Wärmetauscher 17 ist in der Figur 2 detailliert dargestellt. Daraus geht hervor, dass der zweite Wärmetauscher 17 U-förmig ausgebildet ist. Zwischen den beiden Schenkeln des U-förmigen Wärmetauschers 17 ist ein Gebläse 13 mit Gebläseschaufeln 15 angeordnet. Das Gebläse 13 ist an einer Halterung 18 montiert. Ein unteres Ende der Halterung 18 ist in dem Boden 19 eingesteckt. Ein oberes Ende der Halterung 18 ist an dem nicht gezeigten Außenmodul-Gehäuse montiert. Der Wärmetauscher 17 sitzt mit einer U-förmigen Stirnseite auf dem Boden 19 des Außenmoduls 9. Der Boden 19 neigt sich, wie in der Figur 4 dargestellt ist, über einen Winkel α in Richtung auf einen Abflusskanal 31. Der Abflusskanal 31 ist über eine Auslassöffnung 32 mit der Außenatmosphäre 11 in Verbindung ist. In den Figuren 2 bis 4 schließt ein Verschlusselement 33 die Auslassöffnung 32 geschlossen. Aus der Figur 2 geht ferner hervor, dass am Boden 19 eine Trennwand 29 ausgebildet ist. Die Trennwand 29 unterteilt den Boden 19 in einen ersten Bodenabschnitt 23 und einen zweiten Bodenabschnitt 25. Der zweite Bodenabschnitt 25 ist dabei gemäß der Figur 2 einerseits durch die Trennwand 29 sowie durch den Abflusskanal 31 eingegrenzt. Aus der Figur 4 geht hervor, dass eine Außenumfangslinie 27 der Gebläseschaufeln 15 bis auf einen geringfügigen Abstand a von ca. 3 mm dem zweiten Bodenabschnitt 25 angenähert ist.In the figure 1, according to the first embodiment, an air conditioner with an indoor module 3 and an outdoor module 9 is shown. The interior module 3 of the air conditioner is located in a room to be air-conditioned 1. The outdoor module 9 is provided in the outside atmosphere 11. The two modules 3 and 9 are connected to each other via a wiring harness 7. The wiring harness 7 runs for example via an open window to the outdoor module 9. The outdoor module 9 can be arranged on an outer wall in the region of the window. In the wiring harness 7, for example, electrical lines, a refrigerant line or a condensed water line 8 shown in Figure 2 are bundled. In a known manner, the inner module has a first heat exchanger 5 and the outer module 9 a second heat exchanger 17. The second heat exchanger 17 is shown in detail in FIG. It can be seen that the second heat exchanger 17 is U-shaped. Between the two legs of the U-shaped heat exchanger 17, a fan 13 is arranged with fan blades 15. The fan 13 is mounted on a bracket 18. A lower end of the holder 18 is inserted in the bottom 19. An upper end of the bracket 18 is mounted on the outer module housing, not shown. The heat exchanger 17 is seated with a U-shaped end face on the bottom 19 of the outer module 9. The bottom 19, as shown in Figure 4, tilts over an angle α in the direction of a discharge channel 31. The discharge channel 31 is via an outlet opening 32 is in communication with the outside atmosphere 11. In FIGS. 2 to 4, a closure element 33 closes the outlet opening 32 closed. From Figure 2 also shows that at the bottom 19, a partition wall 29 is formed. The partition wall 29 divides the bottom 19 into a first bottom section 23 and a second bottom section 25. The second bottom section 25 is bounded on the one hand by the partition wall 29 and by the outflow channel 31 according to FIG. From the figure 4 shows that an outer circumferential line 27 of the fan blades 15 is approximated to the second bottom portion 25 to a slight distance a of about 3 mm.

Auf der Unterseite des Bodens 19 ist ein Heizelement 35 als Widerstandsheizung ausgebildet. Die Widerstandsheizung 35 ist mit einer Steuereinrichtung 36 verbunden. Die Steuereinrichtung 36 weist einen Außentemperatursensor 38 auf, der an einer Frontseite des Modulbodens 19 vorgesehen ist.On the underside of the bottom 19, a heating element 35 is designed as a resistance heater. The resistance heater 35 is connected to a control device 36. The control device 36 has an outside temperature sensor 38, which is provided on a front side of the module base 19.

Nachfolgend ist ein Raumkühlungsbetrieb des Klimageräts 1 beschrieben: Im Raumkühlungsbetrieb arbeitet der zweite Wärmetauscher 17 im Außenmodul 9 als ein Kondensator. Der erste Wärmetauscher 5 im Innenmodul 3 arbeitet als ein Verdampfer, an dem Kondenswasser aus der Raumluft kondensiert. Das Kondenswasser sammelt sich im Innenmodul 3. Mittels einer nicht gezeigten Pumpe wird das Kondenswasser in der in der Figur 2 gezeigten Kondensatleitung 8 in das Außenmodul 9 geführt. Die Kondensatleitung 8 mündet im Bereich oberhalb der Gebläseschaufeln 15 in das Außenmodul 9. Das Kondensatwasser tropft daher im Raumkühlungsbetrieb auf die Gebläseschaufeln 15, die es in Richtung auf den U-förmigen Wärmetauscher 17 abschleudern. Dadurch verteilt sich das Kondenswasser über den Wärmetauscher 17. In bekannter Weise wird somit eine Kondensierleistung des zweiten Wärmetauschers 17 erhöht. Zugleich ist im Raumkühlungsbetrieb des Klimageräts die Auslassöffnung 32 durch das Verschlusselement 33 verschlossen. Auf dem Boden 19 sammelt sich daher abtropfendes Wasser. Der Wasserpegel des am Boden 19 gesammelten Kondenswassers kann dadurch während des Raumkühlungsbetriebes ansteigen. Wenn sich der Wasserpegel der Außenumfangslinie 27 der Gebläseschaufeln 15 nähert, wird das am Boden 19 gesammelte Wasser mittels der Gebläseschaufeln 15 aufgenommen und erneut gegen den zweiten Wärmetauscher 17 geschleudert. Das von der Kondensatwasserleitung 17 abtropfende Kondenswasser wird demzufolge einerseits direkt von den Gebläseschaufeln 15 erfasst und über den Wärmetauscher 17 verteilt. Andererseits können die Gebläseschaufeln 15 auch Kondenswasser direkt vom Boden 19 aufnehmen und über den Wärmetauscher 17 verteilen.In the following, a room cooling operation of the air conditioner 1 is described. In the room cooling mode, the second heat exchanger 17 operates in the outdoor module 9 as a condenser. The first heat exchanger 5 in the indoor module 3 operates as an evaporator, condensed on the condensate from the room air. The condensed water collects in the inner module 3. By means of a pump, not shown, the condensed water is guided in the condensate line 8 shown in Figure 2 in the outer module 9. The condensate line 8 opens in the area above the fan blades 15 in the outer module 9. The condensate water drips therefore in the room cooling operation on the fan blades 15, which eject it in the direction of the U-shaped heat exchanger 17. As a result, the condensed water is distributed via the heat exchanger 17. In a known manner, a condensing capacity of the second heat exchanger 17 is thus increased. At the same time, the outlet opening 32 is closed by the closure element 33 in the room cooling operation of the air conditioner. Therefore dripping water collects on the floor 19. The water level of the condensed water collected at the bottom 19 may thereby increase during the room cooling operation. As the water level approaches the outer peripheral line 27 of the fan blades 15, the water collected at the bottom 19 is received by the fan blades 15 and again thrown against the second heat exchanger 17. The condensate dripping from the condensate water line 17 is consequently detected, on the one hand, directly by the fan blades 15 and distributed via the heat exchanger 17. On the other hand, the fan blades 15 can also absorb condensation directly from the bottom 19 and distribute it over the heat exchanger 17.

In einem Raumheizungsbetrieb des Klimageräts arbeitet der erste Wärmetauscher 5 im Innenmodul 3 als ein Kondensator, um den Raum 1 zu erwärmen. Der zweite Wärmetauscher 17 im Außenmodul 9 arbeitet als ein Verdampfer. In diesem Fall kondensiert Wasser aus der Außenatmosphäre an dem zweiten Wärmetauscher 17. Vom zweiten Wärmetauscher 17 tropft das Kondenswasser 21 in Pfeilrichtung zum zweiten Bodenabschnitt 23 ab. Der zweite Bodenabschnitt 23 leitet das gesammelte Kondenswasser 21 zum Abflusskanal 31. Dieser ist im Raumheizungsbetrieb nicht durch das Verschlusselement 33 geschlossen. Das Kondenswasser 21 fließt daher über den Abflusskanal 31 aus dem Außenmodul 9 ab. Erfasst der Außentemperatursensor 38 der Steuereinrichtung 36 eine Außentemperatur im Bereich des Wasser-Gefrierpunktes, so schaltet die Steuereinrichtung 36 das Heizelement 35 ein. Der Boden 19 erwärmt sich dadurch auf eine über der Wasser-Gefriertemperatur liegende Temperatur. Demzufolge ist die Gefahr beseitigt, dass sich bei entsprechenden niedrigen Außentemperaturen Eis unterhalb der Gebläseschaufeln bilden kann. Ein Kontakt zwischen Gebläseschaufeln und auf dem Boden gebildetem Eis ist somit verhindert.In a space heating operation of the air conditioner, the first heat exchanger 5 operates in the indoor module 3 as a condenser to heat the room 1. The second heat exchanger 17 in the outdoor module 9 operates as an evaporator. In this case From the second heat exchanger 17, the condensed water drips off in the direction of the arrow to the second bottom section 23. The second bottom portion 23 directs the collected condensed water 21 to the discharge channel 31. This is not closed by the closure element 33 in the space heating operation. The condensed water 21 therefore flows out of the outdoor module 9 via the outflow channel 31. If the outside temperature sensor 38 of the control device 36 detects an outside temperature in the region of the water freezing point, then the control device 36 switches on the heating element 35. The bottom 19 is thereby heated to a temperature above the water freezing temperature. Consequently, the risk is eliminated that can form ice below the fan blades at corresponding low outside temperatures. Contact between fan blades and ice formed on the ground is thus prevented.

Aufgrund der Trennwand 29 ist der erste Bodenabschnitt 25 unterhalb der Gebläseschaufeln 15 für das im zweiten Bodenabschnitt 23 abfließende Wasser unzugänglich. Dadurch besteht im Raumheizungsbetrieb des Klimageräts nicht die Gefahr, dass vom Wärmetauscher 17 abtropfendes Kondenswasser 21 in den ersten Bodenabschnitt 25 gelangt.Due to the partition 29, the first bottom portion 25 is inaccessible below the fan blades 15 for the effluent in the second bottom portion 23 of water. As a result, in the space heating operation of the air conditioner, there is no danger of condensate 21 dripping from the heat exchanger 17 entering the first floor section 25.

Aufgrund des Heizelements 35 ist jedoch verhindert, dass das gesammelte Wasser zu Eis gefriert, das mit den Gebläseschaufeln 15 in Kontakt kommen kann.Due to the heating element 35, however, the collected water is prevented from freezing to ice, which may come into contact with the fan blades 15.

Claims (9)

  1. Air conditioning apparatus with an interior module (3), which is provided in the room (1) to be air conditioned, with a first heat exchanger (5) and an exterior module (9), which is functionally connected with the interior module (3) by way of connecting lines (7), such as electrical lines, a refrigerant line or the like, and which is provided in the outside atmosphere (11) outside the room (1) to be air conditioned, which exterior module (9) comprises a fan (13) with fan blades (15) for producing an air flow directed onto a second heat exchanger (17) and a base (19), which is provided under the fan (13), for collecting dripping condensation water (21), in which base an outlet opening (32) is provided through which the collected condensation water (21) can flow away from the base (19), characterised in that a heating element (25), which prevents ice formation of the condensation water (21), which is collected on the base (19), by heating of the base (19) to a temperature lying above the water freezing temperature, is provided at the base (19) of the exterior module (9) and the base (19) has a separating means (29, 30) which subdivides the base (19) into two base sections (23, 25), of which the first base section (23) conducts the outflowing condensation water (21) to the outlet opening (32) and the heating element (35) is associated with the second base section (25), wherein the second base section (25) is arranged below the fan blades (15).
  2. Air conditioning apparatus according to claim 1, characterised in that the heating element (25) is constructed as an electrical resistance heater.
  3. Air conditioning apparatus according to claim 1 or 2, characterised in that a sensor (38), which switches on the heating element (35) in the case of risk of ice formation at the base (19), is associated with the heating element (35).
  4. Air conditioning apparatus according to claim 3, characterised in that the sensor is constructed as an outside temperature sensor (38) which switches on the heating element in the case of an outside temperature in the region of the water freezing temperature.
  5. Air conditioning apparatus according to claim 4, characterised in that the separating means is constructed as a partition wall (29) which separates the first base section (23) from the second base section (25).
  6. Air conditioning apparatus according to one of the preceding claims, characterised in that an outer line (27) of the fan blades (15) approaches the second base section (19) as far as a spacing (a) of 2 to 3 millimetres.
  7. Air conditioning apparatus according to one of the preceding claims, characterised in that a closure element (33) for closing the outlet opening (32) is associated with the outlet opening (32).
  8. Air conditioning apparatus according to one of the preceding claims, characterised in that the second heat exchanger (17) operates in a room cooling operation of the air conditioning apparatus as a condenser and in a room heating operation of the air conditioning apparatus as an evaporator, at which water condenses.
  9. Air conditioning apparatus according to claim 8, characterised in that the heating element (35) is switched on in room heating operation and switched off in room cooling operation.
EP03021479A 2002-09-30 2003-09-23 Air-conditioning device Expired - Lifetime EP1403589B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200202308A ES2215469B1 (en) 2002-09-30 2002-09-30 AIR CONDITIONER.
ES200202308 2002-09-30

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EP1403589A1 EP1403589A1 (en) 2004-03-31
EP1403589B1 true EP1403589B1 (en) 2006-12-20

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ES2294891B1 (en) * 2005-07-19 2008-11-01 Gerardo Ballesteros Avellaneda EVAPORATOR DEVICE FOR AIR CONDITIONING DEVICES.
EP1746359A3 (en) * 2005-07-19 2007-03-07 Gerardo Ballesteros Avellaneda Evaporation device for air conditioning systems
CN100441976C (en) * 2006-01-19 2008-12-10 西安交通大学 Impeller built-in heater capable of preventing air door of fan from freezing
FR2904685A1 (en) * 2006-08-04 2008-02-08 Prima Froid Sarl Soc Nouv Exterior air conditioning unit for building, has element absorbing water produced by condensation at level of condenser operating in reversible manner, and resistor to heat element and evaporate absorbed water
KR20100046392A (en) * 2008-10-27 2010-05-07 엘지전자 주식회사 Air conditioner
FR3024222A1 (en) * 2014-07-25 2016-01-29 Chauffage Soc Ind De SYSTEM FOR MANAGING LIQUID CONDENSATES OF A HEAT EXCHANGER
CN107003016B (en) 2014-12-26 2020-03-06 三菱电机株式会社 Outdoor machine
CN113446665B (en) * 2020-03-25 2022-11-15 东芝开利株式会社 Indoor unit of air conditioner

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US4107939A (en) * 1977-04-01 1978-08-22 Carrier Corporation Apparatus for reducing exterior condensation in an air conditioner
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JP2003185190A (en) * 2001-12-14 2003-07-03 Denso Corp Outdoor unit for air conditioning apparatus
CA2535007A1 (en) 2003-08-07 2005-02-24 Biogen Idec Ma Inc. Nogo receptor antagonists

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ES2215469B1 (en) 2005-12-16
EP1403589A1 (en) 2004-03-31
ATE348986T1 (en) 2007-01-15
DE50306017D1 (en) 2007-02-01
ES2215469A1 (en) 2004-10-01
ES2277012T3 (en) 2007-07-01

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