EP3252393B1 - Housing for the airspace of a heat pump set up in an interior area - Google Patents

Housing for the airspace of a heat pump set up in an interior area Download PDF

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Publication number
EP3252393B1
EP3252393B1 EP17171634.3A EP17171634A EP3252393B1 EP 3252393 B1 EP3252393 B1 EP 3252393B1 EP 17171634 A EP17171634 A EP 17171634A EP 3252393 B1 EP3252393 B1 EP 3252393B1
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EP
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Prior art keywords
housing
air
space unit
air space
insert
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EP17171634.3A
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German (de)
French (fr)
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EP3252393A1 (en
Inventor
Heinz Maier
Reinhard Blab
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Kemi GmbH
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Kemi GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/02—Casings; Cover lids; Ornamental panels

Definitions

  • the invention relates to a housing for the air space of a heat pump installed in an interior according to the preamble of protection claim 1.
  • So-called air / water heat pumps are generally known as compression heat pumps with an electric drive. They use the ambient air as a heat source and work on the principle of a closed cycle. The working medium continuously changes its state of matter, evaporates, is compressed, liquefies and expands. In this way, heat pumps extract the heat from the air and transfer it, including the electrical drive energy, as heat to a connected heating and / or hot water circuit.
  • these heat pumps can also be installed indoors in a building. This variant is often chosen to combine all heating technology in one installation room, to meet noise protection requirements and also to keep refrigerant and / or hydraulic lines short.
  • From the DE 33 03 125 is an air / water heat pump with a housing in which the heat pump units, breather and electrical switching means are known. Furthermore, an air intake opening and an air blow-out opening are provided, the evaporator and the fan being arranged between these openings.
  • the compressor, the condenser and the electrical switching devices are located in a lower assembly room.
  • the evaporator, fan and air duct are installed in an upper assembly room.
  • an air / water heat pump for outdoor installation is known.
  • An air / water heat pump for outdoor installation with a refrigerant circuit has an evaporator through which outside air can flow.
  • a fan which is at least partially surrounded by a fan duct, is provided for conveying outside air.
  • An air duct is provided between the evaporator and the fan duct, which changes from the contour of the evaporator to the shape of the fan duct, so that a largely closed air duct is formed from the evaporator to the fan. The fan is kept in the air duct.
  • the object of the present invention is to present an improved variant of a housing for the air space of a heat pump.
  • a universal connection of the heat pump to the structural conditions should be made possible.
  • the invention relates to a housing for the air space of a heat pump installed in an interior space, which comprises at least one upper and one lower part and at least one fan is arranged in the air space, the housing of the air space unit being constructed in several parts and having a slide-like insert and one Air duct includes.
  • the slide-like insert and the air duct are connected airtight to the upper and lower part of the housing and fixed by means of locks.
  • the slide-like insert encloses the fan on three sides, as a result of which the sucked-in air is directed to the outlet side in the direction of the air duct.
  • the air duct has channels and / or guide devices via which the air is directed vertically upwards and blown out in order to continue to flow horizontally in a subsequent air channel on the outlet side of the heat pump.
  • the inventive design of the housing parts keeps the flow resistance within the air space, especially on the outflow side, low.
  • the slide-like insert and the air duct can be installed on the right or left in the upper and lower part of the housing.
  • the manufacturer usually specifies the air routing for indoor air-to-water heat pumps or can only be changed by complex conversion work at the installation site on the construction site. By simply converting individual parts of the multi-part housing according to the present invention, the outflow direction can be changed if necessary.
  • the bottom surface of the lower part of the housing is designed in such a way that the condensate, which arises when the sucked-in air cools below the dew point temperature or after defrosting of iced-up evaporator surfaces, obliquely to a passage on a watertight surface (Drain opening) is directed downwards.
  • a discharge element is integrated as an insert, preferably a pipe, to which a flexible hose can be attached on the refrigerant circuit side, via which the condensate can be discharged into an external drain. The condensate generated in the interior of the housing is collected in a targeted manner and discharged from the housing.
  • all housing parts consist of expanded polypropylene (EPP).
  • EPP expanded polypropylene
  • the Fig. 1 shows the upper part of an indoor air-water heat pump W, which includes the so-called “air space” 1.
  • the so-called cooling circuit of the heat pump is arranged below this unit, but is not relevant to the present invention.
  • the "warm” air enters the rear of the heat pump (arrow a).
  • the "cooled” air is blown out over a corner (arrow b), ie depending on the structural conditions in the vertical transverse direction to the right or to the left.
  • the structure of the housing 10 which consists of an upper part 10.1 and a lower part 10.2, is shown.
  • the upper part 10.1 of the housing 10 is removed, so that only the lower part of the housing 10.2 and the built-in parts slide 11, air duct 12, fan 2 and evaporator 3 can be seen.
  • Reference number 2.1 denotes the fan nozzle.
  • the air duct 12 can also be connected on the left or right to the upper and lower part 10.1, 10.2 of the housing 10 in an airtight manner and fixed by means of a locking device.
  • the air blown out vertically in the transverse direction is directed upwards by bevels in the component 12 in order to be able to continue to flow horizontally in the subsequent air duct 3 on the outlet side of the heat pump 1.
  • the Fig. 3 shows a plan view of the "air space" of the heat pump, wherein the upper part 10.1 of the housing 10, the slide-like insert 11 and the air duct 12 are not shown.
  • the bottom surface of the lower parts 10.2 of the housing 10 is designed so that the condensate, which arises when the sucked-in air cools below the dew point temperature or after the defrosting of iced-up evaporator surfaces, obliquely on the waterproof surface to a passage downwards (see arrows).
  • a tube can be integrated, for example, as an insert, to which, for example, a flexible hose can be plugged on the cooling circuit side, via which the condensate can be drained off into an external drain.
  • the various functional components in the "air space” e.g. evaporator, fan with nozzle, temperature sensor
  • the various functional components in the "air space” are usually fixed in place on mostly “stiff" metal parts of the heat pump support frame by screwing, riveting or the like.
  • These types of fastenings transmit structure-borne noise, created by the air flow in the evaporator or by the rotational movements in the fan, via the frame and the cladding parts attached to the installation room.
  • all sound-generating components are accommodated in the upper and lower part of the multi-part housing 10.
  • the choice of material (EPP) ensures that vibrations in the "volume" of the housing are compensated for and that no vibrations are transmitted to the outer surfaces of the housing. This means that no sound can be transmitted to the installation room.
  • the functional components are fastened here via terminals (evaporator, temperature sensor), but also screwed (if necessary) for the fan.
  • the contact points 10.3 of the individual parts of the housing 10 are designed as a so-called circumferential tongue and groove connection, a "mushroom-shaped" groove N 1 having an undersize compared to the tongue F being produced (see Fig. 4 ). Due to the deformability of the EPP, the connection can still be made and an air- and condensate-tight connection is achieved by pressing.
  • connection of the supply air and extract air ducts K 1 , K 2 to the heat pump W must enable the heat pump to be subsequently separated from the air ducts (e.g. maintenance or service activities) without destroying or damaging built-in components, whereby the heat pump W must be moved in two directions (in the Fig. 5 left or down). Therefore, these connections must be formed on the contact surfaces without an undercut.
  • the solution according to the invention provides here that the circumferential groove N 2 is contained in the supply and exhaust air ducts K 1 , K 2 , into which a compressible seal D is introduced (eg compression tape or molded seal).
  • the heat pump W is pressed onto the ducts K 1 , K 2 with pre-tension and secured using reversibly mountable retaining clips H ( Fig. 6 ), which only engage in the EPP parts (upper and lower part of the multi-part housing 10.1 / 10.2 and supply and exhaust air duct K 1 , K 2) .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (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)

Description

Die Erfindung betrifft ein Gehäuse für den Luftraum einer in einem Innenraum aufgestellten Wärmepumpe nach dem Oberbegriff des Schutzanspruches 1.The invention relates to a housing for the air space of a heat pump installed in an interior according to the preamble of protection claim 1.

Sogenannte Luft-/Wasser-Wärmepumpen sind als Kompressionswärmepumpen mit Elektroantrieb allgemein bekannt. Sie verwenden als Wärmequelle die Umgebungsluft und arbeiten nach dem Prinzip eines geschlossenen Kreisprozesses. Das Arbeitsmedium ändert kontinuierlich seinen Aggregatzustand, verdampft, wird komprimiert, verflüssigt sich und expandiert. So entziehen Wärmepumpen der Luft die enthaltene Wärme und geben diese inklusive der elektrischen Antriebsenergie als Wärme an einen angeschlossenen Heiz- und/oder Warmwasserkreislauf ab.So-called air / water heat pumps are generally known as compression heat pumps with an electric drive. They use the ambient air as a heat source and work on the principle of a closed cycle. The working medium continuously changes its state of matter, evaporates, is compressed, liquefies and expands. In this way, heat pumps extract the heat from the air and transfer it, including the electrical drive energy, as heat to a connected heating and / or hot water circuit.

Neben der Außenaufstellung im Freien gibt es für diese Wärmepumpen die Möglichkeit der Innenaufstellung in einem Gebäude. Diese Variante wird gerne gewählt, um sämtliche Heiztechnik in einem Installationsraum zusammen zu fassen, um Schallschutzanforderungen zu genügen und auch um Kältemittel- und/oder hydraulische Leitungen kurz zu halten.In addition to outdoor installation outdoors, these heat pumps can also be installed indoors in a building. This variant is often chosen to combine all heating technology in one installation room, to meet noise protection requirements and also to keep refrigerant and / or hydraulic lines short.

Aus der DE 33 03 125 ist eine Luft/Wasser-Wärmepumpe mit einem Gehäuse, in dem die Wärmepumpenaggregate, Entlüfter und elektrische Schaltmittel angeordnet sind, bekannt. Weiterhin sind eine Luftansaugöffnung und eine Luftausblasöffnung vorgesehen, wobei zwischen diesen Öffnungen der Verdampfer und der Lüfter angeordnet sind. In einem unteren Montageraum liegen der Verdichter, der Verflüssiger und die elektrischen Schaltmittel. In einem oberen Montageraum sind der Verdampfer, der Lüfter und eine Luftführung eingebaut.From the DE 33 03 125 is an air / water heat pump with a housing in which the heat pump units, breather and electrical switching means are known. Furthermore, an air intake opening and an air blow-out opening are provided, the evaporator and the fan being arranged between these openings. The compressor, the condenser and the electrical switching devices are located in a lower assembly room. The evaporator, fan and air duct are installed in an upper assembly room.

Aus der DE 20 2010 001 244 U1 bzw. EP 2 354 709 A ist eine Luft/Wasser-Wärmepumpe für eine Außenaufstellung bekannt. Eine Luft/Wasser-Wärmepumpe für eine Außenaufstellung mit einem Kältemittelkreislauf weist einen von Außenluft durchströmbaren Verdampfer auf. Ein von einem Lüfterkanal zumindest teilweise umgebener Lüfter ist für die Förderung von Außenluft vorgesehen. Zwischen dem Verdampfer und dem Lüfterkanal ist eine Luftführung vorgesehen, die von der Kontur des Verdampfers in die Form des Lüfterkanals übergeht, so dass eine weitgehend geschlossene Luftführung vom Verdampfer zum Lüfter gebildet ist. Der Lüfter ist in der Luftführung gehalten.From the DE 20 2010 001 244 U1 respectively. EP 2 354 709 A. an air / water heat pump for outdoor installation is known. An air / water heat pump for outdoor installation with a refrigerant circuit has an evaporator through which outside air can flow. A fan, which is at least partially surrounded by a fan duct, is provided for conveying outside air. An air duct is provided between the evaporator and the fan duct, which changes from the contour of the evaporator to the shape of the fan duct, so that a largely closed air duct is formed from the evaporator to the fan. The fan is kept in the air duct.

Die Aufgabe der vorliegenden Erfindung besteht darin, eine verbesserte Variante eines Gehäuses für den Luftraum einer Wärmepumpe vorzustellen. Außerdem soll ein universeller Anschluss der Wärmepumpe an die baulichen Gegebenheiten ermöglicht werden.The object of the present invention is to present an improved variant of a housing for the air space of a heat pump. In addition, a universal connection of the heat pump to the structural conditions should be made possible.

Demgemäß bezieht sich die Erfindung auf ein Gehäuse für den Luftraum einer in einem Innenraum aufgestellten Wärmepumpe, welches mindestens ein Ober- und ein Unterteil umfasst und im Luftraum mindestens einen Ventilator angeordnet ist, wobei das Gehäuse der Luftraumeinheit mehrteilig ausgebildet ist und einen schieberartigen Einsatz und eine Luftführung umfasst. Der schieberartige Einsatz und die Luftführung sind dabei luftdicht mit dem Ober- und Unterteil des Gehäuses verbunden und mittels Arretierungen fixiert. Nach einem weiteren Merkmal ist vorgesehen, dass der schieberartige Einsatz den Ventilator dreiseitig umschließt, wodurch die angesaugte Luft zur Ausblasseite in Richtung Luftführung gelenkt wird. Vorteilhaft ist vorgesehen, dass die Luftführung Kanäle und/oder Leiteinrichtungen aufweist, über welche die Luft vertikal nach oben gelenkt und ausgeblasen wird um in einem anschließenden Luftkanal auf der Ausblasseite der Wärmepumpe horizontal weiter zu strömen.Accordingly, the invention relates to a housing for the air space of a heat pump installed in an interior space, which comprises at least one upper and one lower part and at least one fan is arranged in the air space, the housing of the air space unit being constructed in several parts and having a slide-like insert and one Air duct includes. The slide-like insert and the air duct are connected airtight to the upper and lower part of the housing and fixed by means of locks. According to a further feature, it is provided that the slide-like insert encloses the fan on three sides, as a result of which the sucked-in air is directed to the outlet side in the direction of the air duct. It is advantageously provided that the air duct has channels and / or guide devices via which the air is directed vertically upwards and blown out in order to continue to flow horizontally in a subsequent air channel on the outlet side of the heat pump.

Durch die erfinderische Ausbildung der Gehäuseteile wird der Strömungswiderstand innerhalb des Luftraums, insbesondere auf der Abströmseite, gering gehalten. Der schieberartige Einsatz und die Luftführung sind rechts oder links im Ober- und Unterteil des Gehäuses einbaubar. Üblicher Weise wird ab Hersteller die Führung der Luft für innenaufgestellte Luft-Wasser-Wärmepumpe vorgegeben oder kann nur durch aufwendige Umbauarbeiten am Einbauort auf der Baustelle verändert werden. Durch einen einfachen Umbau von Einzelteilen des mehrteiligen Gehäuses gemäß der vorliegenden Erfindung kann bei Bedarf die Abströmungsrichtung geändert werden.The inventive design of the housing parts keeps the flow resistance within the air space, especially on the outflow side, low. The slide-like insert and the air duct can be installed on the right or left in the upper and lower part of the housing. The manufacturer usually specifies the air routing for indoor air-to-water heat pumps or can only be changed by complex conversion work at the installation site on the construction site. By simply converting individual parts of the multi-part housing according to the present invention, the outflow direction can be changed if necessary.

Nach einem weiteren Merkmal ist vorgesehen, dass die Bodenfläche des Unterteils des Gehäuses so ausgeführt ist, dass das Kondensat, welches bei Abkühlung der angesaugten Luft unter die Taupunkttemperatur oder nach dem Abtauen von vereisten Verdampfer-Flächen entsteht, auf einer wasserdichten Fläche schräg zu einem Durchgang (Abflussöffnung) nach unten geleitet wird. Im Unterteil des Gehäuses ist ein Ableitelement als Einlegeteil, vorzugsweise ein Rohr, eingebunden, an welches auf der Kältekreis-Seite ein flexibler Schlauch aufbringbar ist, über welchen das Kondensat in einen externen Ablauf ableitbar ist. Das im Innenraum des Gehäuses entstehende Kondensat wird dadurch zielgerichtet gesammelt und aus dem Gehäuse abgeleitet.According to a further feature, it is provided that the bottom surface of the lower part of the housing is designed in such a way that the condensate, which arises when the sucked-in air cools below the dew point temperature or after defrosting of iced-up evaporator surfaces, obliquely to a passage on a watertight surface (Drain opening) is directed downwards. In the lower part of the housing, a discharge element is integrated as an insert, preferably a pipe, to which a flexible hose can be attached on the refrigerant circuit side, via which the condensate can be discharged into an external drain. The condensate generated in the interior of the housing is collected in a targeted manner and discharged from the housing.

Vorteilhaft ist weiter vorgesehen, dass alle Gehäuseteile aus expandiertem Polypropylen (EPP) bestehen. Die Ausbildung des mehrteiligen Gehäuses aus einem wärme- und schalldämmenden Material bewirkt, dass an den äußeren Oberflächen des mehrteiligen Gehäuses keine Kondensatbildung erfolgt und der Luft- und Körperschall, der innerhalb des Gehäuses oder durch Luftströmung und Ventilator entsteht, gedämmt wird. Nach einem weiteren Merkmal sind die Funktionsbauteile der Wärmepumpe über Klemmen (Verdampfer, Temperaturfühler) befestigt und der Ventilator ist im Gehäuse verschraubt. Durch die Ausgestaltung der Kontaktstellen der Einzelteile des Gehäuses sind diese luft- und kondensatdicht miteinander verbunden.It is also advantageously provided that all housing parts consist of expanded polypropylene (EPP). The formation of the multi-part housing from a heat and sound-insulating material has the effect that no condensate is formed on the outer surfaces of the multi-part housing and the airborne and structure-borne noise which is generated inside the housing or by air flow and fan is insulated. After one Another feature is that the functional components of the heat pump are attached via terminals (evaporator, temperature sensor) and the fan is screwed into the housing. Due to the design of the contact points of the individual parts of the housing, these are connected to one another in an airtight and condensate-tight manner.

Die Fig. 1 zeigt den oberen Teil einer innenaufgestellte Luft-Wasser-Wärmepumpe W, die den sogenannten "Luftraum" 1 umfasst. Unterhalb dieser Einheit ist der sogenannte Kältekreis der Wärmepumpe angeordnet, welcher aber für die vorliegende Erfindung nicht relevant ist. Generell erfolgt der Eintritt der "warmen" Luft an der Rückseite der Wärmepumpe (Pfeil a). Um möglichst wenig Platz im Aufstellraum zu benötigen, erfolgt das Ausblasen der "abgekühlten" Luft über Eck (Pfeil b), d.h. je nach baulichen Gegebenheiten in vertikaler Querrichtung nach rechts oder nach links. In der Fig. 1a ist der Aufbau des Gehäuses 10, welches aus einem Oberteil 10.1 und einem Unterteil 10.2 besteht, dargestellt. In der Fig. 1b ist das Oberteil 10.1 des Gehäuses 10 entfernt, sodass nur das Unterteil des Gehäuses 10.2 und die Einbauteile Schieber 11, Luftführung 12, Lüfter 2 und Verdampfer 3 erkennbar sind. Mit dem Bezugszeichen 2.1 wird die Ventilatordüse bezeichnet.The Fig. 1 shows the upper part of an indoor air-water heat pump W, which includes the so-called "air space" 1. The so-called cooling circuit of the heat pump is arranged below this unit, but is not relevant to the present invention. In general, the "warm" air enters the rear of the heat pump (arrow a). In order to take up as little space as possible in the installation room, the "cooled" air is blown out over a corner (arrow b), ie depending on the structural conditions in the vertical transverse direction to the right or to the left. In the Fig. 1a the structure of the housing 10, which consists of an upper part 10.1 and a lower part 10.2, is shown. In the Fig. 1b the upper part 10.1 of the housing 10 is removed, so that only the lower part of the housing 10.2 and the built-in parts slide 11, air duct 12, fan 2 and evaporator 3 can be seen. Reference number 2.1 denotes the fan nozzle.

Die Fig.2.1a bis 2.2b zeigen die erfinderischen Lösungen, welche eine Änderung der Ausblasrichtung bewirken:

  • Durch einen schieberartigen Einsatz 11 wird die von hinten durch den Verdampfer über den Radialventilator 2 angesaugte Luft nach rechts (Fig. 2.2a, b) oder nach links (Fig. 2.1a, b) geleitet. Der schieberartige Einsatz 11, welcher luftdicht mit Ober- und Unterteil 10.1, 10.2 des Gehäuses 10 verbunden ist, kann sowohl von links oder von rechts in Ober- und
  • Unterteil 10.1, 10.2 des Gehäuses 10 eingeschoben und mittels Arretierungen fixiert werden.
The Fig. 2.1a to 2.2b show the inventive solutions which cause a change in the blow-out direction:
  • Through a slide-like insert 11, the air drawn in from behind by the evaporator via the radial fan 2 is displaced to the right ( Fig. 2.2a, b ) or to the left ( Fig. 2.1a, b ) headed. The slide-like insert 11, which is airtightly connected to the upper and lower part 10.1, 10.2 of the housing 10, can be from the left or from the right in the upper and
  • Lower part 10.1, 10.2 of the housing 10 inserted and fixed by means of locks.

Die Luftführung 12 kann ebenfalls links oder rechts mit Ober- und Unterteil 10.1, 10.2 des Gehäuses 10 luftdicht verbunden und mittels Arretierung fixiert werden.The air duct 12 can also be connected on the left or right to the upper and lower part 10.1, 10.2 of the housing 10 in an airtight manner and fixed by means of a locking device.

Durch das halbseitige (halbrunde) Umschließen des Radialventilators 2 durch den schieberartigen Einsatz 11 wird die strömende Luft fast vollständig in Richtung der Ausblasöffnung gedrückt. Es gibt keinen "Totraum" auf der "Nicht-Ausblasseite" und somit keine Verwirbelungen bzw. erhöhten Druckverluste. In Ausblasrichtung hinter dem Radialventilator 2 werden die Lufträume im Ober- und Unterteil 10.1, 10.2 des Gehäuses 10 schräg nach hinten erweitert, um die Strömungsgeschwindigkeiten und damit die Druckverluste zu reduzieren.Due to the half-sided (semicircular) enclosing of the radial fan 2 by the slide-like insert 11, the flowing air is pressed almost completely in the direction of the blow-out opening. There is no "dead space" on the "non-exhaust side" and therefore no turbulence or increased pressure drops. In the blow-out direction behind the radial fan 2, the air spaces in the upper and lower part 10.1, 10.2 of the housing 10 are extended obliquely to the rear in order to reduce the flow velocities and thus the pressure losses.

In der Luftführung 12 wird die vertikal in Querrichtung ausgeblasene Luft durch Schrägen im Bauteil 12 nach oben gelenkt, um im anschließenden Luftkanal 3 auf der Ausblasseite der Wärmepumpe 1 horizontal weiter strömen zu können.In the air duct 12, the air blown out vertically in the transverse direction is directed upwards by bevels in the component 12 in order to be able to continue to flow horizontally in the subsequent air duct 3 on the outlet side of the heat pump 1.

Die Fig.3 zeigt eine Draufsicht auf den "Luftraum" der Wärmepumpe, wobei das Oberteil 10.1 des Gehäuses 10, der schieberartige Einsatz 11 und die Luftführung 12 nicht dargestellt sind.The Fig. 3 shows a plan view of the "air space" of the heat pump, wherein the upper part 10.1 of the housing 10, the slide-like insert 11 and the air duct 12 are not shown.

Aus der Fig. 3a wird deutlich, dass die Bodenfläche der Unterteile 10.2 des Gehäuses 10 so ausgeführt ist, dass das Kondensat, welches bei Abkühlung der angesaugten Luft unter die Taupunkttemperatur oder nach dem Abtauen von vereisten Verdampfer-Flächen entsteht, auf der wasserdichten Fläche schräg zu einem Durchgang nach unten (siehe Pfeile) geleitet wird. Im Unterteil 10.2 des Gehäuses 10 kann z.B. als Einlegeteil ein Rohr eingebunden werden, an welches auf der Kältekreis-Seite ein z.B. flexibler Schlauch gesteckt werden kann, über den das Kondensat in eine externen Ablauf abgeleitet werden kann.From the Fig. 3a it is clear that the bottom surface of the lower parts 10.2 of the housing 10 is designed so that the condensate, which arises when the sucked-in air cools below the dew point temperature or after the defrosting of iced-up evaporator surfaces, obliquely on the waterproof surface to a passage downwards (see arrows). In the lower part 10.2 of the housing 10, a tube can be integrated, for example, as an insert, to which, for example, a flexible hose can be plugged on the cooling circuit side, via which the condensate can be drained off into an external drain.

Üblicher Weise werden die verschiedenen Funktionsbauteile im "Luftraum" (z.B. Verdampfer, Ventilator mit Düse, Temperaturfühler) an meist "steifen" Metallteilen des Träger-Rahmens der Wärmepumpe durch Verschrauben, Vernieten oder ähnlichem lagerichtig fixiert. Diese Arten der Befestigungen leiten den Körperschall, entstanden durch die Luftströmung im Verdampfer oder durch die Rotationsbewegungen im Ventilator, über den Rahmen und den daran befestigten Verkleidungsteile an den Aufstellraum weiter. Bei der erfinderischen Lösung werden alle schallerzeugenden Komponenten im Ober- und Unterteil des mehrteiligen Gehäuses 10 aufgenommen. Durch die Werkstoffwahl (EPP) wird sichergestellt, dass im "Volumen" des Gehäuses durch Schwingungen kompensiert werden und keine Schwingungen an die Außenflächen des Gehäuses übertragen werden. Damit kann kein Schall an den Aufstellraum übertragen werden. Die Befestigung der Funktionsbauteile erfolgt hierbei über Klemmen (Verdampfer, Temperaturfühler), aber ggf. auch Verschrauben (beim Ventilator).The various functional components in the "air space" (e.g. evaporator, fan with nozzle, temperature sensor) are usually fixed in place on mostly "stiff" metal parts of the heat pump support frame by screwing, riveting or the like. These types of fastenings transmit structure-borne noise, created by the air flow in the evaporator or by the rotational movements in the fan, via the frame and the cladding parts attached to the installation room. In the inventive solution, all sound-generating components are accommodated in the upper and lower part of the multi-part housing 10. The choice of material (EPP) ensures that vibrations in the "volume" of the housing are compensated for and that no vibrations are transmitted to the outer surfaces of the housing. This means that no sound can be transmitted to the installation room. The functional components are fastened here via terminals (evaporator, temperature sensor), but also screwed (if necessary) for the fan.

Die Kontaktstellen 10.3 der Einzelteile des Gehäuses 10 werden als sogenannte umlaufende Nut- und Federverbindung ausgeführt, wobei eine "pilzförmige" Nut N1 mit Untermaß gegenüber der Feder F gefertigt wird (siehe Fig. 4). Durch die Verformbarkeit des EPP lässt sich die Verbindung trotzdem herstellen und über die Pressung wird eine luft- und kondensatdichte Verbindung erreicht.The contact points 10.3 of the individual parts of the housing 10 are designed as a so-called circumferential tongue and groove connection, a "mushroom-shaped" groove N 1 having an undersize compared to the tongue F being produced (see Fig. 4 ). Due to the deformability of the EPP, the connection can still be made and an air- and condensate-tight connection is achieved by pressing.

Die Anbindung der Zuluft- und Abluftkanäle K1, K2 an die Wärmepumpe W muss ermöglichen, dass eine nachträgliche Trennung der Wärmepumpe von den Luftkanälen (z.B. zu Wartungs- oder Servicetätigkeiten) ohne Zerstörung oder Beschädigung von verbauten Komponenten möglich ist, wobei die Wärmepumpe W in zwei Richtungen zu verschieben sein muss (in der Fig. 5 nach links oder nach unten). Daher müssen diese Verbindungen ohne Hinterschnitt an den Kontaktflächen ausgebildet werden. Die erfinderische Lösung sieht hier vor, dass in den Zu- und Abluftkanälen K1, K2 eine umlaufende Nut N2 enthalten ist, in welche eine komprimierbare Dichtung D eingebracht ist (z.B. Kompriband oder Formdichtung). Zur Montage der Wärmepumpe an die Zu- und Abluftkanäle K1, K2 wird die Wärmepumpe W an die Kanäle K1, K2 mit Vorspannung angedrückt und über reversibel montierbare Halteklammern H (Fig. 6), welche nur in die EPP Teile (Ober- und Unterteil des mehrteiligen Gehäuses 10.1/10.2 und Zu- bzw. Abluftkanal K1, K2 eingreifen, fixiert.The connection of the supply air and extract air ducts K 1 , K 2 to the heat pump W must enable the heat pump to be subsequently separated from the air ducts (e.g. maintenance or service activities) without destroying or damaging built-in components, whereby the heat pump W must be moved in two directions (in the Fig. 5 left or down). Therefore, these connections must be formed on the contact surfaces without an undercut. The solution according to the invention provides here that the circumferential groove N 2 is contained in the supply and exhaust air ducts K 1 , K 2 , into which a compressible seal D is introduced (eg compression tape or molded seal). To mount the heat pump on the supply and exhaust air ducts K 1 , K 2 , the heat pump W is pressed onto the ducts K 1 , K 2 with pre-tension and secured using reversibly mountable retaining clips H ( Fig. 6 ), which only engage in the EPP parts (upper and lower part of the multi-part housing 10.1 / 10.2 and supply and exhaust air duct K 1 , K 2) .

Claims (9)

  1. Air space unit (1) of an air/water heat pump (W) for an internal set-up in which at least one fan (2) is arranged and which is surrounded by a housing (10) which comprises at least an upper part and a lower part, characterized in that the housing (10) comprises a slide-like insert (11) and an air guide (12), wherein the slide-like insert (11) encloses the fan (2) on three sides, with the result that the sucked-in air is directed to the blow-out side in the direction of the air guide (12), and the slide-like insert (11) and the air guide (12) are connected airtight to the upper and lower part (10.1, 10.2) of the housing (10) and are fixed by locking means.
  2. Air space unit (1) according to Claim 1, characterized in that the slide-like insert (11) and the air guide (12) are arranged on the right or left in the upper and lower part of the housing (10) .
  3. Air space unit (1) according to Claims 1 and 2, characterized in that the air guide (12) has ducts and/or channelling devices via which the air is directed and blown out vertically upwards.
  4. Air space unit (1) according to one of Claims 1 to 3, characterized in that the bottom surface of the lower part (10.2) of the housing (10) discharges the condensate, which results upon cooling the sucked-in air below the dew point temperature or after the thawing of iced evaporator surfaces, on a watertight surface obliquely to a passage (outflow opening).
  5. Housing air space unit (1) according to Claim 4, characterized in that a discharge element as insert part, preferably a pipe, is arranged in the lower part (10.2) of the housing (10).
  6. Air space unit (1) according to one of Claims 1 to 5, characterized in that all the housing parts of the housing (10) consist of expanded polypropylene (EPP) .
  7. Air space unit (1) according to one of Claims 1 to 6, characterized in that the fan (2) is screwed in the housing (10).
  8. Air space unit (1) according to one of Claims 1 to 7, characterized in that the contact points (10.3) of the individual parts of the housing (10) take the form of a peripheral tongue and groove connection (N1, F).
  9. Air space unit (1) according one of Claims 1 to 9, characterized in that the housing parts (10.1, 10.2) are connected to supply-air and exhaust-air ducts (K1, K2) of a heat pump (W) via reversibly mountable retaining clamps (H).
EP17171634.3A 2016-05-30 2017-05-18 Housing for the airspace of a heat pump set up in an interior area Active EP3252393B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202016003295.0U DE202016003295U1 (en) 2016-05-30 2016-05-30 Housing for the air space of a heat pump installed in an interior

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EP3252393A1 EP3252393A1 (en) 2017-12-06
EP3252393B1 true EP3252393B1 (en) 2020-04-15

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EP17171634.3A Active EP3252393B1 (en) 2016-05-30 2017-05-18 Housing for the airspace of a heat pump set up in an interior area

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DE (1) DE202016003295U1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3940311A1 (en) * 2020-07-13 2022-01-19 Bosch Termotecnologia S.A. Hot water heat pump comprising a heat pump unit
CN112833544B (en) * 2020-09-23 2022-12-13 青岛经济技术开发区海尔热水器有限公司 Heat pump water heater and air supply structure thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7628769U1 (en) * 1976-09-15 1977-01-27 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden EVAPORATOR UNIT
DE3303125A1 (en) 1983-01-31 1984-08-02 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Air/water heat pump
EP0339387A1 (en) * 1988-04-27 1989-11-02 KKW Kulmbacher Klimageräte-Werk GmbH Housing for a refrigeration machine
FR2757455B1 (en) * 1996-12-23 1999-01-22 Valeo Climatisation HEATING / VENTILATION AND / OR AIR CONDITIONING DEVICE, PARTICULARLY FOR THE INTERIOR OF A MOTOR VEHICLE
DE202010001244U1 (en) * 2010-01-21 2011-05-26 Stiebel Eltron GmbH & Co. KG, 37603 Air / water heat pump for outdoor installation
US8948580B2 (en) * 2011-08-17 2015-02-03 General Electric Company Foam dam for appliance

Non-Patent Citations (1)

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Title
None *

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DE202016003295U1 (en) 2016-06-22
EP3252393A1 (en) 2017-12-06

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