EP0257017B1 - Air conditioning and ventilating device - Google Patents

Air conditioning and ventilating device Download PDF

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Publication number
EP0257017B1
EP0257017B1 EP87890189A EP87890189A EP0257017B1 EP 0257017 B1 EP0257017 B1 EP 0257017B1 EP 87890189 A EP87890189 A EP 87890189A EP 87890189 A EP87890189 A EP 87890189A EP 0257017 B1 EP0257017 B1 EP 0257017B1
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EP
European Patent Office
Prior art keywords
air
flap
heat exchanger
mixing chamber
internal
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EP87890189A
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German (de)
French (fr)
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EP0257017A2 (en
EP0257017A3 (en
Inventor
Wilhelm Pachner
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ALTEXA LUEFTUNGSTECHNISCHE ANLAGEN FERTIGUNGS-UND
Original Assignee
Altexa Lueftungstechnische Anlagen Fertigungs-Und Vertriebsgesellschaft Mbh
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Publication of EP0257017A3 publication Critical patent/EP0257017A3/en
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    • 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
    • F24F1/027—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle mounted in wall openings, e.g. in windows

Definitions

  • the invention relates to an air conditioning and ventilation device, consisting of a housing for installation in a wall, window, facade or the like. according to the preamble of claim 1.
  • Known and commercially available air conditioners are designed in such a way that they only work in recirculation mode, ie the used room air is re-used after cooling or heating returned to the room.
  • these air conditioners In order to allow outside air to get into the room to be conditioned, these air conditioners usually have manually operated ventilation openings or devices, through the max. 10-15% outside air can be added. In order for more than 15% outside air to get into the interior, additional ventilation devices must generally be installed.
  • Such a device is known for example from DE-A 29 05 884, wherein the heat exchangers can be operated either as a condenser or as an evaporator.
  • a major disadvantage of this device design is that, depending on the usual installation situation, these supply air and exhaust air openings usually remain open when the device is switched off and therefore, e.g. in winter, cold air can enter the interior unhindered and cause unpleasant drafts.
  • DE-A 33 15 444 discloses a device for ventilating and heating interiors, in particular living quarters, in which an air duct is provided for the interior air and an air duct for the outside air, with two flaps adding outside air to the inside air and inside air to the outside air can be.
  • a heat exchanger with a fan working as a condenser is arranged, while in the air duct for the outside air, a heat exchanger with a fan working as an evaporator is arranged.
  • a third heat exchanger which enables a heat exchange between the admixed inside air and the admixed outside air.
  • the arrangement of the flaps in front of the third heat exchanger enables three operating modes, namely heating the internal air passed through the condenser in one end position of the flaps, heating the outside air via the condenser in the other end position the flaps with simultaneous heat exchange between indoor and outdoor air via the third heat exchanger, and a mixed operation between these two operating modes in an intermediate position of the flaps.
  • the arrangement of the third heat exchanger is complex and requires additional space.
  • the object of the invention is to create a new air conditioning and ventilation device which excludes the disadvantages of the known device designs mentioned, in which it is possible to keep the contamination of the heat exchanger low, and in particular to achieve a smaller dimensioning of the heat exchanger in the second air duct, as well as to achieve a higher air flow rate for the extraction of the interior air in the second air duct, the same amount of interior air to be extracted to the outside in the ventilation mode as the outside air is blown inwards in the first air duct.
  • the air conditioning and ventilation device according to the invention is characterized by the features of the claims.
  • the heat exchanger can be made smaller with the same heat transfer capacity.
  • the direct supply of the indoor air to the blower achieves a higher air flow rate with the same blower output than if the indoor air were passed through the heat exchanger (higher air resistance through the heat exchanger).
  • the heat exchanger cannot be contaminated by the indoor air. Due to the partial covering of the heat exchanger by the flap, more indoor air than outside air is sucked out of the blower, so that in the exclusive ventilation mode with the compressor switched off, the same amount of inside air is sucked out to the outside as outside air is blown in through the first air duct.
  • the mixing chamber enables intensive mixing of the indoor and outdoor air.
  • an additional, controllable supply of outside air to pure supply air mode and / or pure exhaust air mode with only two heat exchangers is possible, with all connection openings to the outside air being automatically sealed off when the device is switched off.
  • an air filter is arranged in front of the heat exchanger.
  • a first embodiment of a device for adjusting the mixing ratio between inside and outside air in the first air duct is characterized in that a first flap is arranged in the area of the mixing chamber after the first inside air inlet and in front of the heat exchanger and that in the area after the first outside air inlet and one in front of the heat exchanger second flap is arranged, the first flap being mechanically coupled to the second flap via a linkage, so that when the first flap is open the second flap is closed and vice versa.
  • a second embodiment of a device for adjusting the mixing ratio between inside and outside air in the first air duct is characterized in that the mixing chamber is provided with a flap in front of the heat exchanger of the first air duct between the first inside air inlet and the first outside air inlet, the flap is rotatably mounted on a shaft on the wall of the mixing chamber.
  • a third embodiment of a device for adjusting the mixing ratio between inside and outside air in the first air duct is characterized in that between the inside and outside air the mixing chamber is provided with a flap in front of the heat exchanger of the first air duct between the first inside air inlet and the first outside air inlet is, the flap has the shape of a quarter circle and is rotatably mounted on a shaft which is arranged centrally in the inlet opening to the heat exchanger.
  • a fourth embodiment of a device for adjusting the mixing ratio between inside and outside air in the first air duct is characterized in that the mixing chamber is provided with a flap in front of the heat exchanger of the first air duct between the first inside air inlet and the first outside air inlet, the flap in the manner of a throttle valve is rotatably mounted in the middle of the mixing chamber on a shaft, from which a continuous web leads to the wall of the mixing chamber
  • a fifth embodiment of a device for adjusting the mixing ratio between indoor and outdoor air in the The first air duct is characterized in that the mixing chamber is provided with a flap in front of the heat exchanger of the first air duct between the first inside air inlet and the first outside air outlet, the flap being rotatably mounted in the middle of the mixing chamber on a shaft in the manner of a throttle valve, and has a semicircular part which bears against the wall of the mixing chamber.
  • All of the embodiments of the device for setting the mixing ratio between inside and outside air in the first air duct have a simple structure that ensures trouble-free function.
  • the mixing chamber enables intensive mixing of the indoor and outdoor air.
  • the flaps, slides, blinds or the like are advantageously continuously adjustable by means of a servomotor.
  • Each blower is attached with the associated heat exchanger and mixing chamber as a compact unit on a floor pan, so that the unit can be easily replaced for service or repair.
  • a heater is arranged between the heat exchanger and the fan of the first air duct, which increases the heating output in the event of low outside temperatures.
  • Figs. 10 and 11, 1 denotes a housing with the front wall 2 removed, which is directed toward the interior in the assembled state, so that the individual device components are easily accessible, or that the components fastened on a floor pan 3 can be used as a compact machine set in the housing and are removable.
  • the individual components are arranged side by side in such a way that, with a relatively low overall depth and height, there is an overall length of the housing which corresponds, for example, to the installation dimensions of standardized windows.
  • the housing itself can be extended to any desired size from a technically required minimum length. Through this variable In terms of construction, a dimensional adjustment to architectural specifications is possible.
  • an air inlet 4 is provided on the far left for the inside air, which corresponds to an inlet opening 4 ⁇ in the front wall 2 (Fig.2) and continues as a supply air mixing chamber 5 and ends there in an air inlet 6 for the outside air (Fig.11).
  • a channel 7 leads from the air inlet 6 to the corresponding inlet opening 6 ⁇ in the rear wall 8 (FIG. 3).
  • a return air flap 9 and an outside air flap 10 are arranged, which are rotatably mounted on vertical shafts 11 and 12.
  • pivot levers 13 and 14 are fastened, which are articulated via a connecting rod 15, so that when one shaft rotates, the other shaft is also rotated.
  • the shaft 11 is connected above the pivot lever 13 to the drive shaft of a servo motor 11 ⁇ , which enables a simultaneous, constant change in direction of the flaps 9 and 10.
  • the flaps operate in such a way that the flap 9 is closed when the flap 10 is open and vice versa, any intermediate positions of the flap 9 and 10 being possible.
  • the supply air mixing chamber 5 continues to the right into a channel which is formed by a first heat exchanger 16 and contains coils 17 with heat conducting plates 18. Between the air inlets 6 ⁇ and 6, the outside air for the admixture to the return air in the duct 7 sweeps over outer bends of the coils 17 of the heat exchanger 16 and is already preconditioned before entering the supply air mixing chamber 5.
  • An air filter 19 is arranged in front of the heat exchanger 16 (FIGS. 1, 10).
  • the heat exchanger 16 is followed by a short heating duct 20 in which an electric heater 21 (FIG. 1) is installed.
  • a fan 22 in the form of a radial fan is installed on the heating duct 20, the outlet opening 23 of which is directed upwards and opens into a trough 24 which is closed on three sides and is open to the front in order to form an air outlet 25 which extends into a corresponding outlet opening 26 in the front wall 2 of the housing 1 continues (Fig.2).
  • the trough 24 has a V-shaped air baffle 27 in the middle and two obliquely arranged air baffles 28 for wide-area air distribution.
  • In front of the outlet opening 26 are adjustable baffles 26 ⁇ through which the air flow can be steered in any direction.
  • the air-guiding trough 24 and the guide plates 27 and 28 are clad with sound-absorbing material, as a result of which the lowest possible operating noise is achieved.
  • the inside air is sucked in by the blower 22 through the air inlets 4, 4 'through the supply air mixing chamber 5, the heat exchanger 16 and the heating duct 20 and is returned to the room via the tub 24 and its air outlet 25 and the outlet opening 26.
  • a variable proportion of outside air of 0-100% can be added via the outside air flap 10.
  • the supply air mixing chamber 5, the heat exchanger 16 and the heating duct 20, and the blower 22 form a first compact ventilation unit which is mounted in the left area of the floor pan 3.
  • a second compact ventilation unit consisting of a heat exchanger 29, an exhaust air mixing chamber 30 and a blower 31, is mounted in the right area of the floor pan 3.
  • the heat exchanger 29 works as a condenser and the heat exchanger 16 as an evaporator, while in the heat pump mode, the heat exchanger 29 works as an evaporator and the heat exchanger 16 as a condenser.
  • the second ventilation unit enables heat to be removed from the heat exchanger (condenser) 29 in cooling mode and heat absorption in heating mode (heat pump).
  • a compressor 32 is mounted between the two ventilation units in the central region of the floor pan 3 and is connected to the two heat exchangers 16, 29 via coolant lines, as will be explained in more detail later with reference to FIG. 6.
  • the outside air is drawn in by the blower 31 via an air inlet 33 in the rear wall 8 of the housing 1 (FIG.
  • the exhaust air mixing chamber 30 has an opening 35 at the top, which can be closed by an exhaust air flap 36.
  • the exhaust air flap 36 is rotatably mounted on a horizontal shaft 37 which is connected to the drive axis of a further servomotor 37 '.
  • the opening 35 merges into a corresponding opening in a trough 38 which is too open towards the front and continues as an air inlet 39 for the internal air in the front wall 2 of the housing 1 (FIG. 2).
  • This arrangement enables an exhaust air operation in which the exhaust air flap 36 is completely opened by the servomotor 37 'and covers the heat exchanger (condenser) 29 on one side.
  • internal air is additionally drawn in through the air inlet 39, the trough 38 and via the opening 35 into the exhaust air mixing chamber 30 and is conveyed to the outside by the fan 31.
  • the heat exchanger can be made smaller with the same heat transfer capacity.
  • the direct supply of the indoor air to the blower achieves a higher air flow rate with the same blower output than if the indoor air were passed through the heat exchanger (higher air resistance through the heat exchanger).
  • the heat exchanger cannot be contaminated by the indoor air. Due to the partial covering of the heat exchanger by the flap, more indoor air than outside air is sucked out of the blower, so that in the exclusive ventilation mode with the compressor switched off, the same amount of inside air is sucked out to the outside as outside air is blown in through the first air duct.
  • all air-carrying and other parts are lined with sound insulation material.
  • To this Parts include the flaps 9, 10 and 36, the supply air mixing chamber 5, the exhaust air mixing chamber 30, the troughs 24 and 38, the baffles 27 and 28, and the entire inner surface of the housing 1.
  • the flap is provided on both sides with the soundproofing material also for sealing when the device is switched off.
  • the switchover from cooling operation to heating operation takes place via an electromagnetically actuated reversing valve 40 (FIG. 4), which is arranged in the compressor 32.
  • a double pressure switch 41 is arranged at the heat exchanger 29 and is used for pressure monitoring on the high and low pressure side of the coolant circuit.
  • the blower 31 has a switch box 42 with terminals, relays, fuses, etc., from which connecting cable to the servomotors 11 'and 37' to the blowers 22 and 31, to the radiator 18, to the compressor 38, to the reversing valve 40 and to the pressostat 41.
  • Control lines lead from the control box 42 to a central operating device (not shown), which contains a microprocessor which carries out the control functions and monitors the device.
  • the control unit is attached to a suitable location in the interior and contains a number of function keys for selecting the individual operating modes, such as COOLING, HEATING, El.HEAT, AIRMIX, FRESHAIR, EXHAUST, FREECOOLING and OFF. Furthermore, a thermistor-controlled temperature electronics with temperature selector for setting the desired room temperature and a speed selector for the blowers for setting the desired air volume. A 4-stage control of the speed and thus the air volume is preferably carried out. Furthermore, the control unit is provided with an optical fault display. The central control unit can also be used to control several air conditioning and ventilation units together.
  • the schematic representation of the coolant circuit and the air duct according to FIG. 4 shows, for example, the cooling operation.
  • the coolant heated by the compressor 32 passes through the reversing valve 40 to the heat exchanger (condenser) 29 and from there via a throttle element 43 e.g. in the form of a capillary tube to the heat exchanger (evaporator) 16.
  • the coolant is returned from the heat exchanger 16 via the reversing valve 40 to the suction side of the compressor 32.
  • the inside, mixed or outside air guided through the heat exchanger 16 depending on the preselected mode of operation is cooled by releasing the heat required for the evaporation of the refrigerant, while the heat absorbed by the coolant is given off to the outside air via the heat exchanger 29.
  • the reversing valve 40 is switched over to switch to heating operation, the functions of the heat exchangers are reversed, ie the heat exchanger 16 works as a condenser and the heat exchanger 29 as an evaporator.
  • the hot coolant line emerging on the high-pressure side of the compressor 32 is led down to the bottom trough 3 and is laid there in a serpentine manner in contact with the bottom trough 3 in order to achieve the greatest possible evaporation of the condensation water collecting in the bottom trough 3.
  • this coolant line is connected to the floor pan 3 by means of silicone rubber.
  • an outlet connection (not shown) as a safety drain for any excess condensate water.
  • the control unit also includes an internal electronic locking circuit that prevents multiple buttons, e.g. HEATING and COOLING, faulty or illogical operating modes are triggered that do not fall under the operating modes listed above.
  • buttons e.g. HEATING and COOLING
  • all the air inlet or outlet openings are arranged in the plane of the front wall 2 or the rear side 8 of the housing 1, which advantageously means that no lateral openings in the housing are required, which are taken into account during installation should be.
  • the installation of any necessary air duct on the housing 1 is also significantly facilitated by this measure, the entire opening area being adaptable to the speed gradations of the amount of air required in each case.
  • a plate 44 is attached behind the front wall 2 for safety reasons, after its removal only access to the units or components of the device is made possible.
  • two flaps 9 and 10 are used to adjust the mixing ratio between inside and outside air.
  • 5 and 7 show further exemplary embodiments, each with only one flap, which is arranged rotatably about a vertical shaft 46 in the mixing chamber 5 in front of the heat exchanger 16 between the air inlet 4 for the inside air and the air inlet 6 for the outside air.
  • the flap 45 is fastened to the wall of the mixing chamber 5 so that it can rotate about the shaft 46.
  • the flap 47 has the shape of a quarter circle, the shaft 46 being arranged centrally in the inlet opening to the heat exchanger 16.
  • a flap 48 is provided in the manner of a throttle valve, which is arranged rotatably in the middle of the mixing chamber 5 about the shaft 46, a continuous web 49 being provided as a lock between the shaft 46 and the wall of the mixing chamber 6, which a prevents unwanted mixing of indoor and outdoor air in this area.
  • Fig. 8 shows similar flap 50 as in Fig. 7, wherein instead of the web 49, a semicircular part 51 is arranged on the flap 50, which abuts the wall of the mixing chamber 5 and takes over the locking function.
  • Fig. 9 shows a variant in which the flaps 9 and 10 are replaced by sliders 52 and 53 and which are actuated by a rotary link 54, which outside the mixing chamber 5 is arranged rotatably about a shaft 46 ⁇ .
  • the flaps 9 and 10 or the like by adjustable blinds. be replaced.

Description

Die Erfindung betrifft ein Klima- und Lüftungsgerät, bestehend aus einem Gehäuse zum Einbau in eine Wand, Fenster, Fassade od.dgl. entsprechend dem Oberbegriff des Patentanspruches 1.The invention relates to an air conditioning and ventilation device, consisting of a housing for installation in a wall, window, facade or the like. according to the preamble of claim 1.

Bekannte und im Handel befindliche Klimageräte sind in ihrer Konzeption so konstruiert, daß sie nur im Umluftbetrieb arbeiten, d.h., die verbrauchte Raumluft wird nach Kühlung oder Erwärmung wiede in den Raum zurückgeführt. Um Außenluft in den zu konditionierenden Raum gelangen zu lassen, sind bei diesen Klimageräten meist händisch zu betätigende Belüftungsöffnungen bzw. -einrichtungen vorhanden,
durch die max. 10-15% Außenluft beigemischt werden können. Damit mehr als 15% Außenluft in den Innenraum gelangt, müssen in der Regel zusätzliche Belüftungseinrichtungen installiert werden.Known and commercially available air conditioners are designed in such a way that they only work in recirculation mode, ie the used room air is re-used after cooling or heating returned to the room. In order to allow outside air to get into the room to be conditioned, these air conditioners usually have manually operated ventilation openings or devices,
through the max. 10-15% outside air can be added. In order for more than 15% outside air to get into the interior, additional ventilation devices must generally be installed.

Ein derartiges Gerät ist zum Beispiel durch die DE-A 29 05 884 bekannt, wobei die Wärmetauscher wahlweise als Kondensator oder als Verdampfer betrieben werden können.Such a device is known for example from DE-A 29 05 884, wherein the heat exchangers can be operated either as a condenser or as an evaporator.

Ein wesentlicher Nachteil bei dieser Gerätekonzeption besteht darin, daß in Abhängigkeit von der üblichen Montagesituation diese Zuluft-und Abluftöffnungen bei Abschalten des Gerätes meist geöffnet bleiben und daher, z.B. im Winter, kalte Luft ungehindert in den Innenraum eindringen kann und unangenehme Zugerscheinungen hervorruft.A major disadvantage of this device design is that, depending on the usual installation situation, these supply air and exhaust air openings usually remain open when the device is switched off and therefore, e.g. in winter, cold air can enter the interior unhindered and cause unpleasant drafts.

Wesentlich ist bei diesen Geräten auch, daß infolge der geringen Außenluftrate eine Raumkühlung, auch bei niederen Außentemperaturen, in Räumen mit hoher interner Wärmeentwicklung (Computerräume u.dgl.) nur mit Hilfe der Kompressorkühlung erfolgen kann.
Durch die DE-A 33 15 444 ist eine Vorrichtung zum Belüften und Heizen von Innenräumen, insbesondere Wohnräumen bekannt, bei der eine Luftführung für die Innenluft und eine Luftführung für die Außenluft vorgesehen ist, wobei über zwei Klappen Außenluft zur Innenluft und Innenluft zur Außenluft beigemischt werden kann. In der Luftführung für die Innenluft ist ein als Kondensator arbeitender Wärmetauscher mit Gebläse angeordnet, während in der Luftführung für die Außenluft ein als Verdampfer arbeitender Wärmetauscher mit Gebläse angeordnet ist. Zusätzlich ist ein dritter Wärmetauscher vorgesehen, der einen Wärmetausch zwischen der beigemischten Innenluft und der beigemischten Außenluft ermöglicht. Die Anordnung der Klappen vor dem dritten Wärmetauscher ermöglicht drei Betriebsarten, nämlich Heizen der über den Kondensator geführten Innenluft in einer Endstellung der Klappen, Heizen der Außenluft über den Kondensator in der anderen Endstellung der Klappen bei gleichzeitigem Wärmetausch zwischen Innen- und Außenluft über den dritten Wärmetauscher, und einen Mischbetrieb zwischen diesen beiden Betriebsarten in einer Zwischenstellung der Klappen. Die Anordnung des dritten Wärmetauschers ist aufwendig und erfordert zusätzlichen Raum.It is also important with these devices that, due to the low outside air rate, room cooling, even at low outside temperatures, in rooms with high internal heat development (computer rooms and the like) can only take place with the help of the compressor cooling.
DE-A 33 15 444 discloses a device for ventilating and heating interiors, in particular living quarters, in which an air duct is provided for the interior air and an air duct for the outside air, with two flaps adding outside air to the inside air and inside air to the outside air can be. In the air duct for the indoor air, a heat exchanger with a fan working as a condenser is arranged, while in the air duct for the outside air, a heat exchanger with a fan working as an evaporator is arranged. In addition, a third heat exchanger is provided, which enables a heat exchange between the admixed inside air and the admixed outside air. The arrangement of the flaps in front of the third heat exchanger enables three operating modes, namely heating the internal air passed through the condenser in one end position of the flaps, heating the outside air via the condenser in the other end position the flaps with simultaneous heat exchange between indoor and outdoor air via the third heat exchanger, and a mixed operation between these two operating modes in an intermediate position of the flaps. The arrangement of the third heat exchanger is complex and requires additional space.

Weiters wirkt es sich nachteilig aus, daß auch bei der Betriebsart des Heizens der Innenluft ein Teil dieser Innenluft mit dem dritten Wärmetauscher in Kontakt kommt und so ein unerwünschter Wärmetausch mit der kälteren Außenluft, welche ebenfalls mit dem dritten Wärmetauscher in Kontakt kommen kann, stattfindet. Das erhöht die zum Aufheizen der Innenluft nötige Zeit und Energie.Furthermore, it has the disadvantage that even in the operating mode of heating the indoor air, part of this indoor air comes into contact with the third heat exchanger and thus an undesirable heat exchange takes place with the colder outside air, which can also come into contact with the third heat exchanger. This increases the time and energy required to heat the indoor air.

Aufgabe der Erfindung ist die Schaffung eines neuen Klima- und Lüftungsgerätes, welches die genannten Nachteile der bekannten Gerätekonstruktionen ausschließt, bei welchem es möglich ist, die Verschmutzung der Wärmetauscher gering zu halten, und insbesondere eine kleinere Dimensionierung des Wärmetauschers in der zweiten Luftführung zu erzielen, sowie eine höhere Luftförderleistung für die Absaugung der Innenluft in der zweiten Luftführung zu erreichen, wobei im Belüftungsbetrieb die gleiche Menge an Innenluft nach außen abgesaugt werden soll, wie an Außenluft in der ersten Luftführung nach innen eingeblasen wird.The object of the invention is to create a new air conditioning and ventilation device which excludes the disadvantages of the known device designs mentioned, in which it is possible to keep the contamination of the heat exchanger low, and in particular to achieve a smaller dimensioning of the heat exchanger in the second air duct, as well as to achieve a higher air flow rate for the extraction of the interior air in the second air duct, the same amount of interior air to be extracted to the outside in the ventilation mode as the outside air is blown inwards in the first air duct.

Das erfindungsgemäße Klima- und Lüftungsgerät ist durch die Merkmale der Patentansprüche gekennzeichnet.The air conditioning and ventilation device according to the invention is characterized by the features of the claims.

Dadurch, daß die Innenluft in der zweiten Luftführung nicht über den Wärmetauscher derselben geleitet wird, kann der Wärmetauscher bei gleicher Wärmeübertragungsleistung kleiner dimensioniert werden. Zusätzlich wird durch die direkte Zuleitung der Innenluft zum Gebläse eine höhere Luftförderleistung bei gleicher Gebläseleistung erzielt, als wenn die Innenluft über den Wärmetauscher geleitet würde (höherer Luftwiderstand durch den Wärmetauscher). Außerdem kann der Wärmetauscher nicht durch die Innenluft verschmutzt werden. Durch die teilweise Abdeckung des Wärmetauschers durch die Klappe wird vom Gebläse mehr Innenluft als Außenluft abgesaugt, sodaß im ausschließlichen Belüftungsbetrieb bei ausgeschaltetem Kompressor die gleiche Menge an Innenluft nach außen abgesaugt wird, wie an Außenluft in der ersten Luftführung nach innen eingeblasen wird.Because the internal air in the second air duct is not passed over the heat exchanger of the same, the heat exchanger can be made smaller with the same heat transfer capacity. In addition, the direct supply of the indoor air to the blower achieves a higher air flow rate with the same blower output than if the indoor air were passed through the heat exchanger (higher air resistance through the heat exchanger). In addition, the heat exchanger cannot be contaminated by the indoor air. Due to the partial covering of the heat exchanger by the flap, more indoor air than outside air is sucked out of the blower, so that in the exclusive ventilation mode with the compressor switched off, the same amount of inside air is sucked out to the outside as outside air is blown in through the first air duct.

Durch die Radialgebläse und die saugseitige Anordnung derselben nach den Wärmetauschern werden letztere voll vom Luftstrom beaufschlagt und es können an den Lufteinlässen und Luftauslässen Lüftungskanäle mit relativ großer Länge angeschlossen werden. Die Mischkammer ermöglicht ein intensives Mischen der Innen- und Außenluft. Neben einem ausschließlichen Umluftbetrieb bei Kühlen oder Heizen ist auch eine zusätzliche, regelbare Zufuhr von Außenluft bis zu einem reinen Zuluftbetrieb und/oder reinen Abluftbetrieb mit lediglich zwei Wärmetauschern ermöglicht, wobei bei Abschalten des Gerätes alle Verbindungsöffnungen zur Außenluft automatisch völlig dicht verschlossen werden.Due to the radial fan and the suction side arrangement of the same after the heat exchangers, the latter are fully impacted by the air flow and ventilation ducts with a relatively large length can be connected to the air inlets and air outlets. The mixing chamber enables intensive mixing of the indoor and outdoor air. In addition to an exclusive recirculation mode for cooling or heating, an additional, controllable supply of outside air to pure supply air mode and / or pure exhaust air mode with only two heat exchangers is possible, with all connection openings to the outside air being automatically sealed off when the device is switched off.

Um eine Verschmutzung des Wärmetauschers in der ersten Luftführung zu verhindern, ist vor dem Wärmetauscher ein Luftfilter angeordnet.To prevent contamination of the heat exchanger in the first air duct, an air filter is arranged in front of the heat exchanger.

Eine erste Ausführungsform einer Vorrichtung zur Einstellung des Mischungsverhältnisses zwischen Innen- und Außenluft in der ersten Luftführung ist dadurch gekennzeichnet, daß im Bereich der Mischkammer nach dem ersten innenseitigen Lufteinlaß und vor dem Wärmetauscher eine erste Klappe angeordnet ist und daß im Bereich nach dem ersten außenseitigen Lufteinlaß und vor dem Wärmetauscher eine zweite Klappe angeordnet ist, wobei die erste Klappe mit der zweiten Klappe mechanisch über ein Gestänge gekoppelt ist, sodaß bei geöffneter erster Klappe die zweite Klappe geschlossen ist und umgekehrt.A first embodiment of a device for adjusting the mixing ratio between inside and outside air in the first air duct is characterized in that a first flap is arranged in the area of the mixing chamber after the first inside air inlet and in front of the heat exchanger and that in the area after the first outside air inlet and one in front of the heat exchanger second flap is arranged, the first flap being mechanically coupled to the second flap via a linkage, so that when the first flap is open the second flap is closed and vice versa.

Eine zweite Ausführungsform einer Vorrichtung zur Einstellung des Mischungsverhältnisses zwischen Innen- und Außenluft in der ersten Luftführung ist dadurch gekennzeichnet, daß die Mischkammer mit einer Klappe vor dem Wärmetauscher der ersten Luftführung zwischen dem ersten innenseitigen Lufteinlaß und dem ersten außenseitigen Lufteinlaß versehen ist, wobei die Klappe drehbar auf einer Welle an der Wandung der Mischkammer befestigt ist.A second embodiment of a device for adjusting the mixing ratio between inside and outside air in the first air duct is characterized in that the mixing chamber is provided with a flap in front of the heat exchanger of the first air duct between the first inside air inlet and the first outside air inlet, the flap is rotatably mounted on a shaft on the wall of the mixing chamber.

Eine dritte Ausführungsform einer Vorrichtung zur Einstellung des Mischungsverhältnisses zwischen Innen- und Außenluft in der ersten Luftführung ist dadurch gekennzeichnet, daß zwischen Innen- und Außenluft die Mischkammer mit einer Klappe vor dem Wärmetauscher der ersten Luftführung zwischen dem ersten innenseitigen Lufteinlaß und dem ersten außenseitigen Lufteinlaß versehen ist, wobei die Klappe die Form eines Viertelkreises aufweist und drehbar auf einer Welle befestigt ist, die mittig in der Eingangsöffnung zum Wärmetauscher angeordnet ist.A third embodiment of a device for adjusting the mixing ratio between inside and outside air in the first air duct is characterized in that between the inside and outside air the mixing chamber is provided with a flap in front of the heat exchanger of the first air duct between the first inside air inlet and the first outside air inlet is, the flap has the shape of a quarter circle and is rotatably mounted on a shaft which is arranged centrally in the inlet opening to the heat exchanger.

Eine vierte Ausführungsform einer Vorrichtung zur Einstellung des Mischungsverhältnisses zwischen Innen- und Außenluft in der ersten Luftführung ist dadurch gekennzeichnet, daß die Mischkammer mit einer Klappe vor dem Wärmetauscher der ersten Luftführung zwischen dem ersten innenseitigen Lufteinlaß und dem ersten außenseitigen Lufteinlaß versehen ist, wobei die Klappe nach Art einer Drosselklappe mittig in der Mischkammer drehbar auf einer Welle befestigt ist, von der ein durchgehender Steg zur Wandung der Mischkammer führtA fourth embodiment of a device for adjusting the mixing ratio between inside and outside air in the first air duct is characterized in that the mixing chamber is provided with a flap in front of the heat exchanger of the first air duct between the first inside air inlet and the first outside air inlet, the flap in the manner of a throttle valve is rotatably mounted in the middle of the mixing chamber on a shaft, from which a continuous web leads to the wall of the mixing chamber

Eine fünfte Ausführungsform einer Vorrichtung zur Einstellung des Mischungsverhältnisses zwischen Innen- und Außenluft in der ersten Luftführung ist dadurch gekennzeichnet, daß die Mischkammer mit einer Klappe vor dem Wärmetauscher der ersten Luftführung zwischen dem ersten innenseitigen Lufteinlaß und dem ersten außenseitigen Luftauslaß versehen ist, wobei die Klappe nach Art einer Drosselklappe mittig in der Mischkammer drehbar auf einer Welle befestigt ist, und einen halbkreisförmigen Teil aufweist, der an der Wandung der Mischkammer anliegt.A fifth embodiment of a device for adjusting the mixing ratio between indoor and outdoor air in the The first air duct is characterized in that the mixing chamber is provided with a flap in front of the heat exchanger of the first air duct between the first inside air inlet and the first outside air outlet, the flap being rotatably mounted in the middle of the mixing chamber on a shaft in the manner of a throttle valve, and has a semicircular part which bears against the wall of the mixing chamber.

Sämtliche Ausführungsformen der Vorrichtung zur Einstellung des Mischungsverhältnisses zwischen Innen- und Außenluft in der ersten Luftführung weisen einen einfachen Aufbau auf, der eine störungsfreie Funktion gewährleistet. Die Mischkammer ermöglicht ein intensives Mischen der Innen- und Außenluft.All of the embodiments of the device for setting the mixing ratio between inside and outside air in the first air duct have a simple structure that ensures trouble-free function. The mixing chamber enables intensive mixing of the indoor and outdoor air.

In vorteilhafter Weise sind die Klappen, Schieber, Jalousien od. dgl. stetig durch einen Stellmotor verstellbar.The flaps, slides, blinds or the like are advantageously continuously adjustable by means of a servomotor.

Jedes Gebläse ist mit dem zugehörigen Wärmetauscher und Mischkammer als kompakte Einheit auf einer Bodenwanne befestigt, sodaß die Einheit für Service oder Reparatur leicht auswechselbar ist.Each blower is attached with the associated heat exchanger and mixing chamber as a compact unit on a floor pan, so that the unit can be easily replaced for service or repair.

Zwischen dem Wärmetauscher und dem Gebläse der ersten Luftführung ist ein Heizkörper angeordnet, der für den Fall tiefer Außentemperaturen die Heizleistung erhöht.A heater is arranged between the heat exchanger and the fan of the first air duct, which increases the heating output in the event of low outside temperatures.

Weitere Einzelheiten der Erfindung werden nachfolgend mit Hilfe der Zeichnung näher beschrieben. Es zeigen

Fig. 1
einen Grundriß des Gerätes ohne Gehäuse und teilweise im Schnitt,
Fig.2
die Vorderwand des Gerätes,
Fig. 3
die Rückwand des Gerätes,
Fig. 4
eine schematische Darstellung des Kühlmittelkreislaufs und der Luftführungen innerhalb des Gerätes,
Fig.5
bis 9 Varianten der ersten Luftführung des Gerätes in schematischer Darstellung,
Fig. 10
eine Vorderansicht des erfindungsgemäßen Klima- und Lüftungsgerätes mit abgenommener Vorderwand in perspektivischer Darstellung, und
Fig.11
eine Rückansicht des Gerätes nach Fig. 1 in perspektivischer Darstellung.
Further details of the invention are described below with the aid of the drawing. Show it
Fig. 1
a plan of the device without housing and partly in section,
Fig. 2
the front wall of the device,
Fig. 3
the rear wall of the device,
Fig. 4
a schematic representation of the coolant circuit and the air ducts within the device,
Fig. 5
up to 9 variants of the first air flow of the device in a schematic representation,
Fig. 10
a front view of the air conditioning and ventilation device according to the invention with the front wall removed in a perspective view, and
Fig. 11
a rear view of the device of FIG. 1 in a perspective view.

In Fig. 10 und 11 bezeichnet 1 ein Gehäuse mit abgenommener Vorderwand 2, die im montierten Zustand zum Innenraum gerichtet ist, sodaß die einzelnen Gerätebauteile leicht zugänglich sind, bzw. daß die auf einer Bodenwanne 3 befestigten Bauteile als kompakter Maschinensatz in das Gehäuse einsetzbar und herausnehmbar sind. Hierbei sind die einzelnen Komponenten nebeneinander liegend so angeordnet, daß sich bei relativ geringer Bautiefe und Bauhöhe eine Baulänge des Gehäuses ergibt, die z.B. den Einbaumaßen genormter Fenster entspricht. Das Gehäuse selbst kann ab einer technisch erforderlichen Mindestbaulänge auf jedes gewünschte Maß verlängert werden. Durch diese variable Bauweise ist ein maßliche Angleichung an architektonische Vorgaben möglich.In Figs. 10 and 11, 1 denotes a housing with the front wall 2 removed, which is directed toward the interior in the assembled state, so that the individual device components are easily accessible, or that the components fastened on a floor pan 3 can be used as a compact machine set in the housing and are removable. Here, the individual components are arranged side by side in such a way that, with a relatively low overall depth and height, there is an overall length of the housing which corresponds, for example, to the installation dimensions of standardized windows. The housing itself can be extended to any desired size from a technically required minimum length. Through this variable In terms of construction, a dimensional adjustment to architectural specifications is possible.

Nach Fig. 1 und 10 ist ganz links ein Lufteinlaß 4 für die Innenluft vorgesehen, der mit einer Einlaßöffnung 4ʹ in der Vorderwand 2 korrespondiert (Fig.2) und sich als Zuluft-Mischkammer 5 fortsetzt und dort in einen Lufteinlaß 6 für die Außenluft endet (Fig.11). Vom Lufteinlaß 6 führt ein Kanal 7 zur Korrespondierenden Einlaßöffnung 6ʹ in der Rückwand 8 (Fig.3). Bei beiden Lufteinlässen 4 und 6 sind eine Rückluftklappe 9 und eine Außenluftklappe 10 angeordnet, die auf senkrechten Wellen 11 und 12 drehbar gelagert sind. Am oberen Ende der Wellen 11 und 12 sind Schwenkhebel 13 und 14 befestigt, die über eine Verbindungsstange 15 gelenkig verbunden sind, sodaß bei Drehung einer Welle die andere Welle mitgedreht wird. Die Welle 11 ist oberhalb des Schwekhebels 13 mit der Antriebswelle eines Stellmotors 11ʹ verbunden, wodurch eine gleichzeitige stetige Richtungsänderung der Klappen 9 und 10 ermöglicht wird. Die Arbeitsweise der Klappen erfolgt in der Art, daß bei geöffneter Klappe 10 die Klappe 9 geschlossen ist und umgekehrt, wobei auch beliebige Zwischenstellungen der Klappe 9 und 10 möglich sind. Die Zuluft-Mischkammer 5 setzt sich nach rechts in einen Kanal fort, der durch einen ersten Wärmetauscher 16 gebildet ist und Rohrschlangen 17 mit Wärmeleitblechen 18 enthält. Zwischen den Lufteinlässen 6ʹ und 6 streicht die Außenluft für die Beimischung zur Rückluft im Kanal 7 über äußeren Bögen der Rohrschlangen 17 des Wärmetauschers 16 und wird vor Eintritt in die Zuluft-Mischkammer 5 bereits vorkonditioniert.1 and 10, an air inlet 4 is provided on the far left for the inside air, which corresponds to an inlet opening 4ʹ in the front wall 2 (Fig.2) and continues as a supply air mixing chamber 5 and ends there in an air inlet 6 for the outside air (Fig.11). A channel 7 leads from the air inlet 6 to the corresponding inlet opening 6ʹ in the rear wall 8 (FIG. 3). At both air inlets 4 and 6, a return air flap 9 and an outside air flap 10 are arranged, which are rotatably mounted on vertical shafts 11 and 12. At the upper end of the shafts 11 and 12, pivot levers 13 and 14 are fastened, which are articulated via a connecting rod 15, so that when one shaft rotates, the other shaft is also rotated. The shaft 11 is connected above the pivot lever 13 to the drive shaft of a servo motor 11ʹ, which enables a simultaneous, constant change in direction of the flaps 9 and 10. The flaps operate in such a way that the flap 9 is closed when the flap 10 is open and vice versa, any intermediate positions of the flap 9 and 10 being possible. The supply air mixing chamber 5 continues to the right into a channel which is formed by a first heat exchanger 16 and contains coils 17 with heat conducting plates 18. Between the air inlets 6ʹ and 6, the outside air for the admixture to the return air in the duct 7 sweeps over outer bends of the coils 17 of the heat exchanger 16 and is already preconditioned before entering the supply air mixing chamber 5.

Vor dem Wärmetauscher 16 ist ein Luftfilter 19 angeordnet (Fig.1,10). Auf den Wärmetauscher 16 folgt ein kurzer Heizungskanal 20, in welchem ein elektrischer Heizkörper 21 (Fig.1) eingebaut ist. An den Heizungskanal 20 ist ein Gebläse 22 in Form eines Radialgebläses angebaut, dessen Austrittsöffnung 23 nach oben gerichtet ist und in eine Wanne 24 einmündet, die an drei Seiten geschlossen und nach vorne offen ist, um einen Luftauslaß 25 zu bilden, der sich in eine entsprechende Auslaßöffnung 26 in der Vorderwand 2 des Gehäuses 1 fortsetzt (Fig.2).An air filter 19 is arranged in front of the heat exchanger 16 (FIGS. 1, 10). The heat exchanger 16 is followed by a short heating duct 20 in which an electric heater 21 (FIG. 1) is installed. A fan 22 in the form of a radial fan is installed on the heating duct 20, the outlet opening 23 of which is directed upwards and opens into a trough 24 which is closed on three sides and is open to the front in order to form an air outlet 25 which extends into a corresponding outlet opening 26 in the front wall 2 of the housing 1 continues (Fig.2).

Die Wanne 24 weist in der Mitte ein v-förmiges Luftleitblech 27 und zwei schräg angeordnete Luftleitbleche 28 zur breitflächigen Luftverteilung auf. Vor der Auslaßöffnung 26 sind verstellbar Luftleitbleche 26ʹ angeordnet, durch die der Luftstrom in jede beliebige Richtung lenkbar ist. Die luftführende Wanne 24 und die Leitbleche 27 und 28 sind mit schallschluckendem Material vergekleidet, wodurch ein möglichst geringes Betriebsgeräusch erzielt wird. Die Innenluft wird vom Gebläse 22 über die Lufteinlässe 4,4ʹ durch die Zuluft-Mischkammer 5, den Wärmetauscher 16 und den Heizungskanal 20 angesaugt und über die Wanne 24 und deren Luftauslaß 25 und die Auslaßöffnung 26 wieder in den Raum zurückgeführt. Über die Außenluftklappe 10 kann ein variabler Außenluftanteil von 0-100% beigemischt werden.The trough 24 has a V-shaped air baffle 27 in the middle and two obliquely arranged air baffles 28 for wide-area air distribution. In front of the outlet opening 26 are adjustable baffles 26ʹ through which the air flow can be steered in any direction. The air-guiding trough 24 and the guide plates 27 and 28 are clad with sound-absorbing material, as a result of which the lowest possible operating noise is achieved. The inside air is sucked in by the blower 22 through the air inlets 4, 4 'through the supply air mixing chamber 5, the heat exchanger 16 and the heating duct 20 and is returned to the room via the tub 24 and its air outlet 25 and the outlet opening 26. A variable proportion of outside air of 0-100% can be added via the outside air flap 10.

Die Zuluft-Mischkammer 5, der Wärmetauscher 16 und der Heizungskanal 20, sowie das Gebläse 22 bilden eine erste kompakte Lüftungseinheit, die im linken Bereich der Bodenwanne 3 montiert ist.The supply air mixing chamber 5, the heat exchanger 16 and the heating duct 20, and the blower 22 form a first compact ventilation unit which is mounted in the left area of the floor pan 3.

Eine zweite kompakte Lüftungseinheit, bestehend aus einem Wärmetauscher 29, einer Abluft-Mischkammer 30 und einem Gebläse 31, ist im rechten Bereich der Bodenwanne 3 montiert.A second compact ventilation unit, consisting of a heat exchanger 29, an exhaust air mixing chamber 30 and a blower 31, is mounted in the right area of the floor pan 3.

Im Kühlbetrieb arbeitet der Wärmetauscher 29 als Kondensator und der Wärmetauscher 16 als Verdampfer, während im Wärmepumpenbetrieb der Wärmetauscher 29 als Verdampfer und der Wärmetauscher 16 als Kondensator arbeiten. Die zweite Lüftungseinheit ermöglicht die Wärmeabfuhr vom Wärmetauscher (Kondensator) 29 im Kühlbetrieb und die Wärmeaufnahme im Heizbetrieb (Wärmepumpe). Zwischen den beiden Lüftungseinheiten ist ein Kompressor 32 im mittleren Bereich der Bodenwanne 3 montiert, der über Kühlmittelleitungen mit den beiden Wärmetauschern 16,29 verbunden ist, wie später anhand der Fig. 6 genauer erläutert wird. Die Außenluft wird vom Gebläse 31 über einen Lufteinlaß 33 in der Rückwand 8 des Gehäuses 1 (Fig.3), den Wärmetauscher 29 und über die Abluft-Mischkammer 30 angesaugt, wobei sie am Kompressor 32 und dessen Kühlmittelleitungen vorbeistreicht, und gelangt dann über einen Luftauslaß 34 in der Rückwand 8 wieder nach außen. Die Abluft-Mischkammer 30 weist oben eine Öffnung 35 auf, die durch eine Abluftklappe 36 verschließbar ist. Die Abluftklappe 36 ist auf einer waagrechten Welle 37 drehbar gelagert, die mit der Antriebsachse eines weiteren Stellmotors 37' verbunden ist. Die Öffnung 35 geht in eine entsprechende Öffnung in einer Wanne 38 über, die nach vorne zu offen ist und sich als Lufteinlaß 39 für die Innenluft in der Vorderwand 2 des Gehäuses 1 fortsetzt (Fig.2). Diese Anordnung ermöglicht einen Abluftbetrieb, bei welchem die Abluftklappe 36 durch den Stellmotor 37' vollständig geöffnet wird und den Wärmetauscher (Kondensator) 29 einseitig abdeckt. Dadurch wird zusätzlich Innenluft durch den Lufteinlaß 39,die Wanne 38 und über die Öffnung 35 in die Abluft-Mischkammer 30 gesaugt und vom Gebläse 31 nach außen gefördert.In cooling mode, the heat exchanger 29 works as a condenser and the heat exchanger 16 as an evaporator, while in the heat pump mode, the heat exchanger 29 works as an evaporator and the heat exchanger 16 as a condenser. The second ventilation unit enables heat to be removed from the heat exchanger (condenser) 29 in cooling mode and heat absorption in heating mode (heat pump). A compressor 32 is mounted between the two ventilation units in the central region of the floor pan 3 and is connected to the two heat exchangers 16, 29 via coolant lines, as will be explained in more detail later with reference to FIG. 6. The outside air is drawn in by the blower 31 via an air inlet 33 in the rear wall 8 of the housing 1 (FIG. 3), the heat exchanger 29 and via the exhaust air mixing chamber 30, bypassing the compressor 32 and its coolant lines, and then passes through one Air outlet 34 in the rear wall 8 again Outside. The exhaust air mixing chamber 30 has an opening 35 at the top, which can be closed by an exhaust air flap 36. The exhaust air flap 36 is rotatably mounted on a horizontal shaft 37 which is connected to the drive axis of a further servomotor 37 '. The opening 35 merges into a corresponding opening in a trough 38 which is too open towards the front and continues as an air inlet 39 for the internal air in the front wall 2 of the housing 1 (FIG. 2). This arrangement enables an exhaust air operation in which the exhaust air flap 36 is completely opened by the servomotor 37 'and covers the heat exchanger (condenser) 29 on one side. As a result, internal air is additionally drawn in through the air inlet 39, the trough 38 and via the opening 35 into the exhaust air mixing chamber 30 and is conveyed to the outside by the fan 31.

Dadurch, daß die Innenluft in der zweiten Luftführung nicht über den Wärmetauscher derselben geleitet wird, kann der Wärmetauscher bei gleicher Wärmeübertragungsleistung kleiner dimensioniert werden. Zusätzlich wird durch die direkte Zuleitung der Innenluft zum Gebläse eine höhere Luftförderleistung bei gleicher Gebläseleistung erzielt, als wenn die Innenluft über den Wärmetauscher geleitet würde (höherer Luftwiderstand durch den Wärmetauscher). Außerdem kann der Wärmetauscher nicht durch die Innenluft verschmutzt werden. Durch die teilweise Abdeckung des Wärmetauschers durch die Klappe wird vom Gebläse mehr Innenluft als Außenluft abgesaugt, sodaß im ausschließlichen Belüftungsbetrieb bei ausgeschaltetem Kompressor die gleiche Menge an Innenluft nach außen abgesaugt wird, wie an Außenluft in der ersten Luftführung nach innen eingeblasen wird.Because the internal air in the second air duct is not passed over the heat exchanger of the same, the heat exchanger can be made smaller with the same heat transfer capacity. In addition, the direct supply of the indoor air to the blower achieves a higher air flow rate with the same blower output than if the indoor air were passed through the heat exchanger (higher air resistance through the heat exchanger). In addition, the heat exchanger cannot be contaminated by the indoor air. Due to the partial covering of the heat exchanger by the flap, more indoor air than outside air is sucked out of the blower, so that in the exclusive ventilation mode with the compressor switched off, the same amount of inside air is sucked out to the outside as outside air is blown in through the first air duct.

Durch die Anordnung der Gebläse nach den Wärmetauschern wird eine gleichmäßige Beaufschlagung der Wärmetauscher erzielt, welche bei einer druckseitiger Anordnung nicht erreicht werden kann.The arrangement of the blowers after the heat exchangers results in a uniform loading of the heat exchangers, which cannot be achieved with an arrangement on the pressure side.

Zur Erzielung einer optimalen Schalldämmung sind alle luftführenden und auch andere Teile mit Schalldämmaterial ausgekleidet. Zu diesen Teilen zählen die Klappen 9,10 und 36, die Zuluft-Mischkammer 5, die Abluft-Mischkammer 30, die Wannen 24 und 38, die Leitbleche 27 und 28, sowie die gesamte Innenfläche des Gehäuses 1. Bei den Klappen dient das beidseitig angebrachte Schalldämmaterial auch zur Abdichtung bei ausgeschaltetem Gerät.In order to achieve optimal sound insulation, all air-carrying and other parts are lined with sound insulation material. To this Parts include the flaps 9, 10 and 36, the supply air mixing chamber 5, the exhaust air mixing chamber 30, the troughs 24 and 38, the baffles 27 and 28, and the entire inner surface of the housing 1. The flap is provided on both sides with the soundproofing material also for sealing when the device is switched off.

Die Umschaltung von Kühlbetrieb auf Heizbetrieb (Wärmepumpe) erfolgt über ein elektromagnetisch betätigbares Umkehrventil 40 (Fig.4), welches beim Kompressor 32 angeordnet ist.The switchover from cooling operation to heating operation (heat pump) takes place via an electromagnetically actuated reversing valve 40 (FIG. 4), which is arranged in the compressor 32.

Beim Wärmetauscher 29 ist ein Doppelpressostat 41 angeordnet, der zur Drucküberwachung auf der Hoch- und Niederdruckseite des Kühlmittelkreislaufes dient. Beim Gebläse 31 ist ein Schaltkasten 42 mit Anschlußklemmen, Relais, Sicherungen usw. angeordnet, von welchem Verbindungskabel zu den Stellmotoren 11' und 37' zu den Gebläsen 22 und 31, zum Heizkörper 18, zum Kompressor 38, zum Umkehrventil 40 und zum Pressostat 41 führen. Vom Schaltkasten 42 führen Steuerleitungen zu einem zentralen Bedienungsgerät (nicht dargestellt), welches einen Mikroprozessor enthält, der die Steuerfunktionen ausführt und das Gerät überwacht.A double pressure switch 41 is arranged at the heat exchanger 29 and is used for pressure monitoring on the high and low pressure side of the coolant circuit. The blower 31 has a switch box 42 with terminals, relays, fuses, etc., from which connecting cable to the servomotors 11 'and 37' to the blowers 22 and 31, to the radiator 18, to the compressor 38, to the reversing valve 40 and to the pressostat 41. Control lines lead from the control box 42 to a central operating device (not shown), which contains a microprocessor which carries out the control functions and monitors the device.

Das Bedienungsgerät wird an einer geeigneten Stelle im Innenraum angebracht und enthält eine Reihe von Funktionstasten für die Wahl der einzelnen Betriebsarten, wie COOLING, HEATING, El.HEAT, AIRMIX, FRESHAIR, EXHAUST, FREECOOLING und OFF. Weiters eine thermistorgeführte Temperaturelektronik mit Temperaturwähler zum Einstellen der gewünschten Raumtemperatur und einen Drehzahlwähler für die Gebläse zum Einstellen der gewünschten Luftmenge. Vorzugsweise erfolgt eine 4-stufige Steuerung der Drehzahl und damit der Luftmenge. Weiters ist das Bedienungsgerät mit einer optischen Störungsanzeige versehen. Mit dem zentralen Bedienungsgerät können auch mehrere Klima- und Lüftungsgeräte gemeinsam gesteuert werden.The control unit is attached to a suitable location in the interior and contains a number of function keys for selecting the individual operating modes, such as COOLING, HEATING, El.HEAT, AIRMIX, FRESHAIR, EXHAUST, FREECOOLING and OFF. Furthermore, a thermistor-controlled temperature electronics with temperature selector for setting the desired room temperature and a speed selector for the blowers for setting the desired air volume. A 4-stage control of the speed and thus the air volume is preferably carried out. Furthermore, the control unit is provided with an optical fault display. The central control unit can also be used to control several air conditioning and ventilation units together.

Die schematische Darstellung des Kühlmittelkreislaufes und der Luftführung nach Fig. 4 zeigt beispielsweise den Kühlbetrieb. Das vom Kompressor 32 erhitzte Kühlmittel gelangt über das Umkehrventil 40 zum Wärmetauscher (Kondensator) 29 und von diesem über ein Drosselorgan 43 z.B. in Form eines Kapillarrohres zum Wärmetauscher (Verdampfer) 16. Vom Wärmetauscher 16 wird das Kühlmittel über das Umkehrventil 40 zur Ansaugseite des Kompressors 32 zurückgeleitet. Die durch den Wärmetauscher 16 je nach vorgewählter Betriebsweise geführte Innen-, Misch- oder Außenluft wird durch Abgabe der zur Verdampfung des Kältemittels benötigte Wärme gekühlt, während über den Wärmetauscher 29 die vom Kühlmittel aufgenommene Wärme an die Außenluft abgegeben wird.The schematic representation of the coolant circuit and the air duct according to FIG. 4 shows, for example, the cooling operation. The coolant heated by the compressor 32 passes through the reversing valve 40 to the heat exchanger (condenser) 29 and from there via a throttle element 43 e.g. in the form of a capillary tube to the heat exchanger (evaporator) 16. The coolant is returned from the heat exchanger 16 via the reversing valve 40 to the suction side of the compressor 32. The inside, mixed or outside air guided through the heat exchanger 16 depending on the preselected mode of operation is cooled by releasing the heat required for the evaporation of the refrigerant, while the heat absorbed by the coolant is given off to the outside air via the heat exchanger 29.

Wird das Umkehrventil 40 umgeschaltet, um auf Heizbetrieb überzugehen, so werden die Funktionen der Wärmetauscher umgekehrt, d.h., der Wärmetauscher 16 arbeitet als Kondensator und der Wärmetauscher 29 als Verdampfer.If the reversing valve 40 is switched over to switch to heating operation, the functions of the heat exchangers are reversed, ie the heat exchanger 16 works as a condenser and the heat exchanger 29 as an evaporator.

Zur Kondensatverdunstung wird die auf der Hochdruckseite des Kompressors 32 austretende heiße Kühlmittelleitung nach unten zur Bodenwanne 3 geführt und dort schlangenförmig in Kontakt mit der Bodenwanne 3 verlegt, um eine größtmögliche Verdampfung des sich in der Bodenwanne 3 sammelnden Kondenswassers zu erreichen. Zur Halterung der heißen Kühlmittelleitung auf der Bodenwanne 3, bzw. zur Verbesserung des Wärmekontakts ist diese Kühlmittelleitung mittels Silikonkautschuk mit der Bodenwanne 3 verbunden. In der Bodenwanne 3 befindet sich noch zusätzlich ein Abflußstutzen (nicht dargestellt) als Sicherheitsablauf für einen allfälligen Kondensatwasserüberschuß.To evaporate the condensate, the hot coolant line emerging on the high-pressure side of the compressor 32 is led down to the bottom trough 3 and is laid there in a serpentine manner in contact with the bottom trough 3 in order to achieve the greatest possible evaporation of the condensation water collecting in the bottom trough 3. To hold the hot coolant line on the floor pan 3, or to improve the thermal contact, this coolant line is connected to the floor pan 3 by means of silicone rubber. In the floor pan 3 there is also an outlet connection (not shown) as a safety drain for any excess condensate water.

Durch die Anordnung der Klappen 9,10 und 36 mit den zugehörigen Einlaß-bzw. Auslaßöffnungen, sowie des Heizkörpers 21 ergeben sich durch Betätigung einer oder mehrerer der Funtionstasten COOLING, HEATING, El.HEAT, AIRMIX, FRESHAIR, EXHAUST, FREECOOLING, OFF am Bedienungsgerät folgende Betriebsarten:

  • A) COOLING (Kühlen im Umluftbetrieb):
    Bei Betätigung der Taste COOLING wird die Rückluftklappe 9 voll geöffnet und die Außenluftklappe 10 geschlossen, sodaß nur Innenluft angesaugt, gefiltert und gekühlt in den Innenraum ausgeblasen wird. Die Abluftklappe 36 ist geschlossen.
  • B) COOLING mit AIRMIX (Kühlen im Mischluftbetrieb):
    Wird zusätzlich die Taste AIRMIX gedrückt, so wird die Rückluftklappe 9 teilweise geschlossen und die Außenluftklappe 10 teilweise geöffnet, während die Abluftklappe 36 geschlossen bleibt. Somit gelangt ein gefilterter Außenluftanteil variabel von 0 - 100% wählbar zur Innenluft. Vorzugweise wird ein Außenluftanteil von bis zu 25% eingestellt.
  • C) HEATING Wärmepumpenschaltung im Umluftbetrieb):
    Durch Betätigung der Taste HEATING erfolgt eine Umschaltung des Umkehrventiles 40, wobei der Kältekreislauf in eine sogenannte Wärmepumpenschaltung übergeht. Die Stellung der Klappen 9,10 und 36 wird wie unter Punkt A) beibehalten.
  • D) HEATING mit AIRMIX (Wärmepumpenheizung im Mischluftbetrieb):
    Wird zusätzlich die Taste AIRMIX gedrückt, so erfolgt die automatische Einstellung der Klappen wie unter Punkt B) näher beschrieben.
  • E) HEATING + EL.HEAT (Wärmepumpenheizung + Elektroheizung):
    Wird zur Taste HEATING die Taste EL.HEAT gedrückt, so wird der Heizkörper 21 hinzugeschaltet. Die Stellungen der Klappen 9,10 und 36 bleiben wie unter Punkt A) und bei Stellung AIRMIX wie unter Punkt B) näher beschrieben.
  • F) EL.HEAT (Elektronheizung um Umluftbetrieb):
    Wird nur die Taste EL.HEAT gedrückt, so wird der Kompressor 32 und das Gebläse 31 ausgeschaltet, während das Gebläse 22 und der Heizkörper 21 eingeschaltet werden. Die Stellungen der Klappen 9,10 und 36 bleiben wie unter Punkt A) näher beschrieben.
  • G) EL.HEAT mit AIRMIX (Elektroheizung im Mischluftbetrieb):
    Durch zusätzliche Betätigung der Taste AIRMIX werden die Betriebszustände wie unter Punkt F) und die Stellung der Klappen 9,10 und 36 wie unter Punkt B) näher beschrieben, automatisch augesteuert.
  • H) FRESHAIR (Zuluft):
    Durch Betätigung der Taste FRESHAIR wird der Kompressor 32, das Gebläse 31 und der Heinzkörper 21 ausgeschaltet, während das Gebläse 22 eingeschaltet wird. Die Rückluftklappe 9 wird geschlossen und die Außenluftklappe 10 geöffnet, während die Abluftklappe 36 geschlossen wird, wodurch ausschließlich Außenluft gefiltert in den Innenraum gelangt.
  • I) EXHAUST (Abluft):
    Durch Betätigung der Taste EXHAUST wird der Kompressor 32, das Gebläse 22 und der Heizkörper 21 ausgeschaltet, das Gebläse 31 wird eingeschaltet. Die Rückluftklappe 9 wird geöffnet und die Außenluftklappe 10 geschlossen, während die Abluftklappe 36 geöffnet wird, sodaß verbrauchte Innenluft nach außen abgesaugt wird.
  • J) FRESHAIR und EXHAUST
    Durch gleichzeitige Betätigung der Tasten FRESHAIR und EXHAUST wird der Kompressor 32 und der Heizkörper 21 ausgeschaltet; das Gebläse 22 und das Gebläse 31 werden eingeschaltet. Die Rückluftklappe 9 wird geschlossen und die Außenluftklappe 10 und die Abluftklappe 36 geöffnet, sodaß einerseits gefilterte Außenluft in den Innenraum gelangt und anderseits die verbrauchte Innenluft nach außen abgesaugt wird.
  • K) FREECOOLING
    Durch Betätigung der Taste FREECOOLING wird im Bedienungsgerät eine elektronische Vergleichsmessung zwischen Innen- und Außentemperatur freigegeben. Diese bewirkt ein selbsttätiges Einschalten der Zuluft und Abluft, wie unter Punkt J) näher beschrieben, dies insbesondere, wenn die Außentemperatur um einen vorgegebenen Wert niedriger als die Innentemperatur ist. Bei Angleichung der Innentemperatur an die Außentemperatur wird die Zuluft- und Abluftfunktion wie unter Punkt L) näher beschrieben, automastisch abgestellt.
  • L) OFF
    Wird die Taste OFF gedrückt, so werden neben der Abschaltung sämtlicher elektrisch betriebener Elemente die Außenluftklappe 10 und die Abluftklappe 36 geschlossen, während die Rückluftklappe 9 geöffnet wird. Heidurch wird vermieden, daß kalte Zugluft von außen in den Innenraum gelangen kann.
The arrangement of the flaps 9, 10 and 36 with the associated inlet or. Outlet openings, as well as the radiator 21, result from operating one or more of the function keys COOLING, HEATING, El.HEAT, AIRMIX, FRESHAIR, EXHAUST, FREECOOLING, OFF on the operating device:
  • A) COOLING:
    When the COOLING button is pressed, the return air flap 9 is fully opened and the outside air flap 10 is closed, so that only inside air is sucked in, filtered and cooled and blown out into the interior. The exhaust flap 36 is closed.
  • B) COOLING with AIRMIX (cooling in mixed air mode):
    If the AIRMIX button is also pressed, the return air flap 9 is partially closed and the outside air flap 10 is partially opened, while the exhaust air flap 36 remains closed. This means that a filtered proportion of outside air reaches the inside air in a variable manner from 0 - 100%. An outside air fraction of up to 25% is preferably set.
  • C) HEATING heat pump circuit in recirculation mode):
    By pressing the HEATING button, the reversing valve 40 is switched over, the refrigeration cycle changing into a so-called heat pump circuit. The position of the flaps 9, 10 and 36 is as in point A) maintained.
  • D) HEATING with AIRMIX (heat pump heating in mixed air mode):
    If the AIRMIX button is also pressed, the flaps are automatically set as described in point B).
  • E) HEATING + EL.HEAT (heat pump heating + electric heating):
    If the EL.HEAT key is pressed for the HEATING key, the radiator 21 is switched on. The positions of the flaps 9, 10 and 36 remain as described in point A) and in the AIRMIX position as described in point B).
  • F) EL.HEAT (electron heating for air circulation):
    If only the button EL.HEAT is pressed, the compressor 32 and the fan 31 are switched off, while the fan 22 and the heating element 21 are switched on. The positions of the flaps 9, 10 and 36 remain as described under point A).
  • G) EL.HEAT with AIRMIX (electric heating in mixed air mode):
    By additionally pressing the AIRMIX button, the operating states as described under point F) and the position of the flaps 9, 10 and 36 as described under point B) are automatically controlled.
  • H) FRESHAIR (supply air):
    By pressing the FRESHAIR button, the compressor 32, the fan 31 and the Heinz body 21 are switched off while the fan 22 is switched on. The return air flap 9 is closed and the outside air flap 10 is opened, while the exhaust air flap 36 is closed, as a result of which only outside air is filtered into the interior.
  • I) EXHAUST (exhaust air):
    By pressing the EXHAUST key, the compressor 32, the blower 22 and the heating element 21 are switched off, the blower 31 is switched on. The return air flap 9 is opened and the outside air flap 10 is closed, while the exhaust air flap 36 is opened, so that used inside air is extracted to the outside.
  • J) FRESHAIR and EXHAUST
    By pressing the FRESHAIR and EXHAUST buttons simultaneously, the compressor 32 and the radiator 21 are switched off; the blower 22 and blower 31 are turned on. The return air flap 9 is closed and the outside air flap 10 and the exhaust air flap 36 are opened so that, on the one hand, filtered outside air enters the interior and, on the other hand, the used inside air is extracted to the outside.
  • K) FREECOOLING
    By pressing the FREECOOLING key, an electronic comparison measurement between the inside and outside temperature is enabled in the control unit. This causes the supply air and extract air to be switched on automatically, as described in more detail under point J), in particular if the outside temperature is lower than the inside temperature by a predetermined value. When the inside temperature is adjusted to the outside temperature, the supply and extract air functions are automatically switched off as described in point L).
  • L) OFF
    If the OFF key is pressed, in addition to the switching off of all electrically operated elements, the outside air flap 10 and the exhaust air flap 36 are closed while the return air flap 9 is opened. This will prevent cold drafts from entering the interior from the outside.

Das Bedienungsgerät enthält auch eine interne elektronische Verriegelungsschaltung, die verhindert, daß durch gleichzeitiges Drücken mehrerer Tasten, wie z.B. HEIZEN und KÜHLEN, fehlerhafte bzw. unlogische Betriebsarten ausgelöst werden, die nicht unter die oben angeführten Betriebsarten fallen.The control unit also includes an internal electronic locking circuit that prevents multiple buttons, e.g. HEATING and COOLING, faulty or illogical operating modes are triggered that do not fall under the operating modes listed above.

Wie den Fig. 2 und 3 zu entnehmen ist, sind sämtliche Luftein- bzw. Luftauslaßöffnungen in der Ebene der Vorderwand 2 bzw. der Rückseite 8 des Gehäuses 1 angeordnet, wodurch in vorteilhafter Weise keine seitlichen Öffnungen im Gehäuse erforderlich sind, welche beim Einbau berücksichtigt werden müßten. Auch der Anbau von ev. erforderlichen Luftführungskanälen an das Gehäuse 1 wird durch diese Maßnahme wesentlich erliechtert, wobei der gesamte Öffnungsbereich den Drehzahlabstufungen der jeweils erforderlichen Luftmenge angepaßt werden kann.As can be seen in FIGS. 2 and 3, all the air inlet or outlet openings are arranged in the plane of the front wall 2 or the rear side 8 of the housing 1, which advantageously means that no lateral openings in the housing are required, which are taken into account during installation should be. The installation of any necessary air duct on the housing 1 is also significantly facilitated by this measure, the entire opening area being adaptable to the speed gradations of the amount of air required in each case.

Wie aus Fig. 10 ersichtlich ist, ist aus Sicherheitsgründen eine Platte 44 hinter der Vorderwand 2 angebracht, nach deren Abnahme erst ein Zugang zu den Einheiten bzw. Bauteilen des Gerätes ermöglicht wird.As can be seen from FIG. 10, a plate 44 is attached behind the front wall 2 for safety reasons, after its removal only access to the units or components of the device is made possible.

Beim dargestellten Ausführungsbeispiel nach Fig. 1 und 10 werden zwei Klappen 9 und 10 zur Einstellung des Mischungsverhältnisses zwischen Innen-und Außenluft verwendet. Fig. 5 und 7 zeigen weitere Ausführungsbeispiele mit jeweils nur einer Klappe, die um eine lotrechte Welle 46 drehbar in der Mischkammer 5 vor dem Wärmetauscher 16 zwischen dem Lufteinlaß 4 für die Innenluft und dem Lufteinlaß 6 für die Außenluft angeordnet ist.In the illustrated embodiment according to FIGS. 1 and 10, two flaps 9 and 10 are used to adjust the mixing ratio between inside and outside air. 5 and 7 show further exemplary embodiments, each with only one flap, which is arranged rotatably about a vertical shaft 46 in the mixing chamber 5 in front of the heat exchanger 16 between the air inlet 4 for the inside air and the air inlet 6 for the outside air.

In Fig. 5 ist die Klappe 45 an der Wandung der Mischkammer 5 um die Welle 46 drehbar befestigt.5, the flap 45 is fastened to the wall of the mixing chamber 5 so that it can rotate about the shaft 46.

In Fig. 6 weist die Klappe 47 die Form eines Viertelkreises auf, wobei die Welle 46 mittig in der Eingangsöffnung zum Wärmetauscher 16 angeordnet ist.6, the flap 47 has the shape of a quarter circle, the shaft 46 being arranged centrally in the inlet opening to the heat exchanger 16.

In Fig. 7 ist eine Klappe 48 nach Art einer Drosselklappe vorgesehen, die mittig in der Mischkammer 5 um die Welle 46 drehbar angeordnet ist, wobei zwischen der Welle 46 und der Wandung der Mischkammer 6 ein durchgehender Steg 49 als Sperre vorgesehen ist, die eine unerwünschte Mischung von Innen-und Außenluft in diesem Bereich verhindert.In Fig. 7, a flap 48 is provided in the manner of a throttle valve, which is arranged rotatably in the middle of the mixing chamber 5 about the shaft 46, a continuous web 49 being provided as a lock between the shaft 46 and the wall of the mixing chamber 6, which a prevents unwanted mixing of indoor and outdoor air in this area.

Fig. 8 zeigt ähnliche Klappe 50 wie in Fig. 7, wobei anstelle des Steges 49 ein halbkreisförmiger Teil 51 an der Klappe 50 angeordnet ist, der an der Wandung der Mischkammer 5 anliegt und die Sperrfunktion übernimmt.Fig. 8 shows similar flap 50 as in Fig. 7, wherein instead of the web 49, a semicircular part 51 is arranged on the flap 50, which abuts the wall of the mixing chamber 5 and takes over the locking function.

Fig. 9 zeigt eine Variante, bei der die Klappen 9 und 10 durch Schieber 52 und 53 ersetzt sind und die durch ein Drehgestänge 54 betätigt werden, welches außerhalb der Mischkammer 5 um eine Welle 46ʹ drehbar angeordnet ist. Letztlich können die Klappen 9 und 10 auch durch verstellbare Jalousien od.dgl. ersetzt werden.Fig. 9 shows a variant in which the flaps 9 and 10 are replaced by sliders 52 and 53 and which are actuated by a rotary link 54, which outside the mixing chamber 5 is arranged rotatably about a shaft 46ʹ. Ultimately, the flaps 9 and 10 or the like by adjustable blinds. be replaced.

Claims (12)

  1. An air conditioning and ventilating device, comprising a housing (1) for fitting into a wall, window, facade or the like, having a first air path for drawing in internal and external air and for blowing both types of air via a fan (22) out towards the inside, a second air path for drawing in external and internal air and for blowing both types of air via a fan (31) out towards the outside, flaps or the like for adjusting the mixing ratio of internal to external air being provided in both the first and second air paths, and heat exchangers (16, 29) being provided in both the first and second air paths, which heat exchangers are connected via cooling medium lines and a throttling member (43) with a compressor (32), a mixing chamber (5) being provided in the first air path between the air inlets (4, 4'; 6, 6') for internal and external air and the heat exchanger (16) and at least one adjustable element (9, 10; 45; 47; 48; 50; 52, 53), for example flaps, slide elements, blinds or the like for adjusting the mixing ratio of internal to external air being arranged in the first air path in the region of the mixing chamber (5) and upstream of the beat exchanger (16) and both the internal and external air being guided through the heat exchanger arranged in the first air path and an exhaust air mixing chamber (30) being provided in the second air path, and in its closed state a flap (36) or the like closes a suction opening in the exhaust air mixing chamber (30) for the internal air, characterised in that only external air is guided in the second air path via the heat exchanger (29) of said second air path into the exhaust air mixing chamber (30), and the flap (36) or the like for adjusting the mixing ratio in the second air path is arranged between the heat exchanger (29) and the exhaust air mixing chamber (30), and in its open state at least partially covers the heat exchanger (29) of the second air path, and both heat exchangers (16 and 29) can be selectively operated by means of a reversing valve (40) as an evaporator or condenser, it being possible to switch off the compressor (32) for ventilation operation.
  2. An air conditioning and ventilating device according to claim 1, characterised in that the fans (22, 31) are designed as radial fans and are arranged between air outlets (26, 34) and the heat exchangers (16, 29).
  3. An air conditioning and ventilating device according to claim 2, characterised in that an air filter (19) is arranged in the first air path upstrem of the heat exchanger (16).
  4. An air conditioning and ventilating device according to claim 1, characterised in that a first flap (9) is arranged in the first air path in the region downstream of the first internal air inlet (4, 4') and upstream of the beat exchanger (16) and a second flap (10) is arranged in the region downstream of the first external air inlet (6, 6') and upstream of the heat exchanger (16), the first flap (9) being mechanically coupled with the second flap (10) via a rod system (13, 14, 15), so that when the first flap (9) is open, the second flap (10) is closed and vice versa.
  5. An air conditioning and ventilating device according to claim 1, characterised in that for adjusting the mixing ratio of internal to external air, the mixing chamber (5) is provided with a flap (45) upstream of the heat exchanger (16) of the first air path between the first internal air inlet (4, 4') and the first external air inlet (6, 6'), the flap (45) being rotatably secured on a shaft (46) to the wall of the mixing chamber (5).
  6. An air conditioning and ventilating device according to claim 1, characterised in that for adjusting the mixing ratio of internal to external air, the mixing chamber (5) is provided with a flap (47) upstream of the heat exchanger (16) of the first air path between the first internal air inlet (4, 4') and the first external air inlet (6, 6'), the flap (47) having the shape of a quarter-circle and being rotatably secured on a shaft (46), which is arranged centrally in the inlet opening to the heat exchanger (16).
  7. An air conditioning and ventilating device according to claim 1, characterised in that for adjusting the mixing ratio of internal to external air, the mixing chamber (5) is provided with a flap (48) upstream of the heat exchanger (16) of the first air path between the first internal air inlet (4, 4') and the first external air inlet (6, 6'), the flap (48) being rotatably secured in the manner of a throttle valve on a shaft (46) in the centre of the mixing chamber (5), a continuous web (49) leading from said shaft (46) to the wall of the mixing chamber (5).
  8. An air conditioning and ventilating device according to claim 1, characterised in that for adjusting the mixing ratio of internal to external air, the mixing chamber (5) is provided with a flap (50) upstream of the heat exchanger (16) of the first air path between the first internal air inlet (4, 4') and the first external air inlet (6, 6'), the flap (50) being rotatably secured in the manner of a throttle valve on a shaft (46) in the centre of the mixing chamber (5) and comprising a semi-circular section (51), which rests against the wall of the mixing chamber (5).
  9. An air conditioning and ventilating device according to claim 1, characterised in that for adjusting the mixing ratio a first slide element (53) is arranged in the first air path in the region downstream of the first internal air inlet (4, 4') and upstream of the beat exchanger (16), and a second slide element (52) is arranged in the region downstream of the first external air inlet (6, 6') and upstream of the heat exchanger (16), the slide elements (52, 53) being mechanically coupled via a rod system (54), so that when the first slide element (53) is open, the second slide element (52) is closed and vice versa.
  10. An air conditioning and ventilating device according to one of claims 4 to 9, characterised in that flaps, slide elements, blinds or the like (9, 10; 45; 47; 48; 50, 52, 53) are adjustable at all times by means of an adjusting motor (11').
  11. An air conditioning and ventilating device according to claim 1, characterised in that a heating element (21) is arranged between the heat exchanger (16) and the fan (22) of the first air path.
  12. An air conditioning and ventilating device according to claim 1, characterised in that the fan (22) is secured with the associated heat exchanger (16) and mixing chamber (5) as a compact unit on a base pan (3).
EP87890189A 1986-08-14 1987-08-13 Air conditioning and ventilating device Expired - Lifetime EP0257017B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT219686A AT391933B (en) 1986-08-14 1986-08-14 AIR CONDITIONING AND VENTILATION UNIT FOR INSTALLATION IN A WALL, WINDOW OR THE LIKE
AT2196/86 1986-08-14

Publications (3)

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EP0257017A2 EP0257017A2 (en) 1988-02-24
EP0257017A3 EP0257017A3 (en) 1989-05-31
EP0257017B1 true EP0257017B1 (en) 1991-09-25

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EP87890189A Expired - Lifetime EP0257017B1 (en) 1986-08-14 1987-08-13 Air conditioning and ventilating device

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EP (1) EP0257017B1 (en)
AT (1) AT391933B (en)
DE (1) DE3773302D1 (en)
ES (1) ES2027324T3 (en)
GR (1) GR3002790T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315444A1 (en) * 1983-04-28 1984-10-31 Philips Patentverwaltung Gmbh, 2000 Hamburg DEVICE FOR VENTILATING AND HEATING INTERIORS, IN PARTICULAR LIVING ROOMS

Also Published As

Publication number Publication date
EP0257017A2 (en) 1988-02-24
EP0257017A3 (en) 1989-05-31
AT391933B (en) 1990-12-27
DE3773302D1 (en) 1991-10-31
ES2027324T3 (en) 1992-06-01
ATA219686A (en) 1990-06-15
GR3002790T3 (en) 1993-01-25

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